CN118357157A - Sorting and screening device for small and medium-sized block agricultural product materials - Google Patents

Abstract

A sorting and screening device for small and medium-sized block agricultural product materials belongs to the technical field of agricultural machinery. Including feeding part, sequencing screening part, collecting vat and collecting box, feeding part and sequencing screening part are put on support frame and chassis, and the support frame is higher than the chassis, the feeding guide plate discharge gate of feeding part is arranged in sequencing screening part pan feeding mouth top, sequencing screening part includes angle adjustment mechanism and the transport mechanism of two sets of symmetry settings, transport mechanism rotates to be connected in angle adjustment mechanism top, a set of angle adjustment mechanism fixed mounting who is located the pan feeding end is on the chassis guide rail, another set of slidable mounting is on the chassis guide rail, connect through horizontal adjustment mechanism between two sets of angle adjustment mechanisms, the collecting vat is arranged in on the chassis, be located two sets of transport mechanism's clearance below, the collecting vat below is provided with the collecting box. The invention can rapidly feed, sort and screen the agricultural products such as tubers, small and medium-sized blocks of fruits and vegetables, reduce labor cost and improve work efficiency.

Description

A sorting and screening device for small and medium-sized bulk agricultural products

Technical Field

The invention belongs to the technical field of agricultural machinery, and in particular relates to a sorting and screening device for medium and small block agricultural product materials.

Background technique

Agricultural products such as tubers and small and medium-sized fruit and vegetables have broad development prospects and are widely used in the food industry and non-food industry. For example, apples, pears, tomatoes, potatoes, sweet potatoes, etc. are the main components of food in my country's diet and an important part of the agricultural planting structure, ensuring food security. my country is a major producer of agricultural products in the world, and nowadays, with the construction of more and more greenhouses in various places, the emergence of seasonal vegetables and fruits and other agricultural products, the output of fruits and vegetables has increased significantly, and many problems have also emerged. At present, the degree of mechanization of agricultural products is relatively insufficient, and agricultural products such as tubers and small and medium-sized fruit and vegetables are of different shapes and sizes, which require high stability and adaptability of machinery.

In China, the vast majority of the feeding, sorting and screening of agricultural products such as tubers and small and medium-sized fruits and vegetables are still done manually. A small number of large cooperatives or family farms use assembly lines for feeding, but they still require manual sorting and screening. There are many problems with manual sorting and screening. On the one hand, with the increase in labor costs in recent years, manual sorting and screening has increased production costs. On the other hand, compared with mechanical feeding and sorting and screening, manual work has disadvantages such as low efficiency and susceptibility to interference from subjective consciousness and external factors. Therefore, there is an urgent need for a device that is highly adaptable and can meet the needs of feeding, sorting and screening agricultural products such as tubers and small and medium-sized fruits and vegetables.

Summary of the invention

In view of the above-mentioned technical problems, the present invention provides a sorting and screening device for small and medium-sized block agricultural products, which can quickly feed and sort agricultural products such as tubers and small and medium-sized block fruits and vegetables of different shapes and types, and can reduce labor costs and improve work efficiency.

The objective of the present invention is achieved through the following technical solutions:

The present invention discloses a sorting and screening device for small and medium-sized block agricultural product materials, comprising a feeding component, a sorting and screening component, a collecting trough and a collecting box, wherein the feeding component and the sorting and screening component are respectively arranged on a support frame and a base frame, and their installation bottom surfaces are both in a horizontal state with the ground, and the support frame is higher than the base frame, and a feeding guide plate discharge port at the discharge end of the feeding component is placed above the feeding end of the sorting and screening component, and the sorting and screening component comprises an angle adjustment mechanism and a conveying mechanism, and the conveying mechanism is placed above the angle adjustment mechanism and is rotatably connected to the angle adjustment mechanism, and a guide rail is provided on the base frame, and two groups of angle adjustment mechanisms are symmetrically arranged on the base frame guide rails, one group of angle adjustment mechanisms located at the feeding end is fixedly installed on the base frame guide rails, and the other group is slidably installed on the base frame guide rails, and the two groups of angle adjustment mechanisms are connected by a horizontal adjustment mechanism, and the collecting trough is placed on the base frame, and is located below the gap between the two groups of conveying mechanisms, and a collecting box placed on the ground is arranged below the collecting trough.

Furthermore, the feeding component includes a support frame, a feeding guide plate, a conveying bearing mechanism and a feeding box, a current limiting adjustment mechanism and a quantity limiting adjustment mechanism arranged thereon in sequence, the conveying bearing mechanism is placed on the support frame, the feeding box is placed at the feeding end of the conveying bearing mechanism, the current limiting adjustment mechanism is placed at the discharging end of the feeding box, the quantity limiting adjustment mechanism is placed above the discharging end of the conveying bearing mechanism, and the feeding guide plate is placed below the discharging end of the conveying bearing mechanism to receive the material and output the material to above the feeding end of the sorting and screening component through the feeding guide plate.

Furthermore, the transmission bearing mechanism is horizontally arranged, including two shells, an active roller I, a driven roller I, a support roller and a conveyor belt I. The two shells adopt a channel steel structure, and the grooves are relatively and symmetrically arranged. An active roller I is arranged at one end between the two shells, and a driven roller I is arranged at the other end. A support roller is arranged between the active roller I and the driven roller I. A conveyor belt I is sleeved on the outer periphery of each roller. One end of the active roller I shaft extends out of a side shell and is connected to a transmission motor. Strip slots are opened on the two shells corresponding to the position of the driven roller I, and both ends of the driven roller I shaft extend out of the strip slots respectively. A tensioning plate I is installed on the outside of the two shells near the strip slots. One end of the tensioning bolt I is connected to the tensioning plate I, and the other end passes through the driven roller I shaft, and a tensioning nut I is connected thereto. The tension of the conveyor belt I is adjusted by adjusting the tensioning nut I. A plurality of fixing plates are arranged in parallel at the bottom between the two shells.

Furthermore, the limit adjustment mechanism includes two symmetrically arranged and adjustable limit baffles, the feed end openings of the two limit baffles are larger than the discharge end openings, the limit baffles are connected to the two shells of the conveying and carrying mechanism through two sets of screw adjustment devices I arranged at the end and the middle, the screw adjustment device I includes an adjusting screw rod I, a nut I, a limit clamping plate and an adjusting knob I, one end of the adjusting screw rod I is rotatably connected to the adjustable limit baffle, and the other end of the adjusting screw rod I is sequentially provided with a nut I, a limit clamping plate and an adjusting knob I, the limit clamping plate is an L-shaped bent plate, and a side plate sleeved on the adjustable screw rod I is provided with a through hole that matches the adjustable screw rod I, and the other side plate is provided with a mounting hole that matches the shell of the conveying and carrying mechanism, which is adjusted by the nut I and the adjusting knob I; wherein, the screw adjustment device I near the middle of the limit baffle, The side plate of the limiting clamping plate connected to the shell of the conveying and carrying mechanism is provided with two mounting holes, which is a two-point fixed connection; the end lead screw adjustment device I is close to the side of the limiting current adjustment mechanism, and the side plate of the limiting clamping plate connected to the shell of the conveying and carrying mechanism is provided with a mounting hole, which is rotatably connected to the shell of the conveying and carrying mechanism. When adjusting the rotation angle of the limiting baffle, the lead screw adjustment device I close to the middle of the limiting baffle is used as support, and the connection point between the middle lead screw adjustment device I and the limiting baffle is used as a fulcrum. The rotation angle of the limiting baffle is adjusted through the end lead screw adjustment device I, and the adjustment angle range between the two limiting baffles is 0-80°; when adjusting the distance between the outlet ends of the two limiting baffles, the two sets of lead screw adjustment devices I on the two limiting baffles are adjusted respectively, and the distance between the outlet ends of the two limiting baffles is adjusted by adjusting the rotation angle of the limiting baffle.

Furthermore, the current limiting adjustment mechanism includes an adjustment mounting plate, a current limiting baffle, a brush roller and a screw adjustment device II. The brush roller is connected to the current limiting baffle through its brush roller shaft. The current limiting baffle is provided with bending connecting plates on both sides of one end plate of the bending plate, and is connected to the brush roller shaft through the bending connecting plate. The brush roller shaft extends out of the bending connecting plate end and is connected to a fixing plate. Adjustment mounting plates connected to the discharge end of the feeding box are arranged at both ends of the brush roller. The fixing plate is slidably connected to the adjustment mounting plate, that is, the fixing plate is relatively close to the brush roller on the fixing plate. Two circular holes are symmetrically opened at both ends of the barrel shaft, and screws that match the vertical strip slots on the adjustment mounting plate are installed on the circular holes, and nuts are installed on them; there is a gap between the end plate with the bent connecting plate and the brush roller, and one end of the adjusting screw Ⅱ of the screw adjustment device Ⅱ is connected to the end plate with the bent connecting plate, and the other end passes through the ear plate on the feeding box, and is fixed by adjusting knobs Ⅱ and nuts Ⅱ on both sides of the ear plate on the adjusting screw Ⅱ, so that the brush roller can be moved along the feeding trough outlet set at the output end of the feeding box through the adjusting screw Ⅱ.

Furthermore, the feeding guide plate is composed of guide side plates arranged on both sides of the guide bottom plate, the width of its feed end is equal to the inner distance of the discharge end of the feeding component, and the discharge end has a closing end, that is: the width of the discharge end is smaller than the width of the feed end, and larger than the opening width of the discharge end of the limit adjustment mechanism; the feeding guide plate is arranged at an angle, its feed end is connected below the discharge end of the conveying support mechanism, and its discharge end is located above the conveyor belt II of the sorting and screening component close to the feeding component.

Furthermore, the sorting and screening component includes an angle adjustment mechanism and a transmission mechanism, and the transmission mechanism includes an active roller II, a driven roller II, a conveyor belt II, a connecting frame, a tensioning plate II, a tensioning bolt II, a tensioning nut II and a roller motor. A conveyor belt II is arranged outside the active roller II and the driven roller II, and a roller motor is connected to the active roller II. Strip slots are opened on the connecting frame at both ends of the driven roller II, and a tensioning plate II is arranged near the strip slots on the outside of the connecting frame. Both ends of the driven roller II shaft extend out of the strip slots. One end of the tensioning bolt II is connected to the tensioning plate II, and the other end passes through the driven roller II shaft, and the tensioning nut II is connected thereto. The conveyor belt II is tensioned by adjusting the tensioning nut II. The angle adjustment mechanism includes a horizontal frame, a rotating frame, an angle adjustment screw and a hand wheel. The horizontal frame is connected with an angle adjustment screw along the moving direction of the guide rail on the base frame. One end of the angle adjustment screw extends out of the horizontal frame and is connected with a hand wheel. The two inner frames of the horizontal frame along the moving direction of the guide rail on the base frame are provided with horizontal strip holes. The rotating frame is composed of rotating rods hinged at both ends of the cross bar. The cross bar is connected to the angle adjustment screw, and the two ends of the cross bar are round rods, which are connected to the horizontal strip holes of the two inner frames of the horizontal frame. The ends of the rotating rod are respectively connected to the connecting frames of the active roller II and the driven roller II. The end of the horizontal frame away from the hand wheel is rotatably connected to the connecting frames of the active roller II and the driven roller II.

Furthermore, the horizontal adjustment mechanism includes an adjusting screw, an adjusting wheel and a guide rail on the base frame. Fixed rods are provided at the bottom ends of the opposite sides of the horizontal frames of the two sets of angle adjustment mechanisms. One end of the adjusting screw is connected to the fixed rod of the angle adjustment mechanism, and the other end passes through the threaded hole on the sliding fixed rod of the angle adjustment mechanism and extends out of the base frame, to which the adjusting wheel is connected. The horizontal frames of the two sets of angle adjustment mechanisms are cooperatively mounted on the guide rails of the base frame.

Furthermore, a shell is installed on the outside of the sorting and screening component, and two groups of shells are symmetrically arranged on the two outer frames of the horizontal frame. Angle display panels are arranged in the shells on both sides of the angle adjustment mechanism. The angle display panel is semicircular in shape as a whole, with two arc grooves and angle scales on it, one end of which is connected to the connecting frame, and the two side frames of the horizontal frame are provided with connecting columns that cooperate with the arc grooves. When adjusting the angle, the angle display panel moves with the connecting frame, and the arc grooves on it cooperate with the connecting columns on both sides of the horizontal frame to slide to display the rotation angle.

Furthermore, sorting guide plates are respectively connected to the bottom ends of the connecting frames of the two groups of active rollers II, the sorting guide plates extending out of the active rollers II are rectangular plates, and the sorting guide plates of the two groups of active rollers II are symmetrically and obliquely arranged; a feed end baffle is also arranged on one side above the base frame and at the feed end of the sorting and screening component.

The beneficial effects of the present invention are:

1. The present invention generally adopts a conveyor belt to work, and the material is transported by the feeding component and the number of materials entering the sorting and screening component is limited. After the material enters the sorting and screening component, the material smaller than the standard and waste materials such as soil are screened out by adjusting the distance and angle between the two groups of conveyor belts II in the sorting and screening component, so as to achieve the purpose of quickly screening agricultural products such as tubers and small and medium-sized block fruits and vegetables, and the materials that meet the standards can be output from the discharge end in a single row in an orderly and neat arrangement after being transmitted by the two groups of conveyor belts II and the weight of the materials themselves, so as to achieve the purpose of quickly sorting agricultural products such as tubers and small and medium-sized block fruits and vegetables, and facilitate the later use of the materials. The present invention can be applied to agricultural products such as tubers and small and medium-sized block fruits and vegetables of different shapes and types, has a wide range of applications, reduces labor costs, and improves work efficiency.

2. The limit adjustment mechanism of the present invention is composed of two limit baffles with adjustable angles and a corresponding screw adjustment device I. The rotation angle of the limit baffles is first adjusted by the two screw adjustment devices I, and then the distance between the outlet ends of the two limit baffles is adjusted by the rotation angle of the limit baffles to adjust the discharge amount of the feeding component.

3. The current limiting adjustment mechanism of the present invention is arranged at the discharge end of the feeding box, and the brush roller is moved in the vertical direction of the feeding box outlet through the screw adjustment device II to adjust the discharge amount of the feeding box.

4. The sorting and screening component described in the present invention includes an angle adjustment mechanism and a conveying mechanism. The conveying mechanism is placed above the angle adjustment mechanism and is rotatably connected through a pin shaft. A guide rail is provided on the base frame, and two groups of angle adjustment mechanisms are symmetrically arranged, one group is fixed on the guide rail of the base frame, and the other group moves along the guide rail on the base frame. The two groups of angle adjustment mechanisms are connected by a horizontal adjustment mechanism. The horizontal adjustment mechanism is used to adjust the horizontal spacing between the two groups of conveyor belts II in the sorting and screening component. The angle of inclination between the upper surfaces of the two groups of conveyor belts II in the sorting and screening component is adjusted by the angle adjustment mechanism to adapt to different materials and achieve better sorting and screening effects.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a sorting and screening device provided in an embodiment of the present application;

FIG2 is a schematic diagram of the planar structure of the sorting and screening device in FIG1 ;

FIG3 is a schematic diagram of the three-dimensional structure of the sorting and screening component in FIG1 ;

FIG4 is a schematic diagram of the three-dimensional structure of the limit adjustment mechanism in FIG1 ;

FIG5 is a schematic diagram of the three-dimensional structure of the current limiting regulating mechanism in FIG1 ;

FIG6 is a schematic diagram of the three-dimensional structure of the transmission and carrying mechanism in FIG1 ;

FIG. 7 is a schematic structural diagram of the feeding box in FIG. 1 .

In the figure: 1. bottom frame,

2. Feed end baffle,

3. Horizontal adjustment mechanism, 31. Adjusting screw, 32. Adjusting wheel;

4. Conveying bearing mechanism, 41. Shell, 42. Conveying motor, 43. Active roller I, 44. Support roller, 45. Driven roller I, 46. Conveying belt I, 47. Tensioning plate I, 48. Tensioning nut I, 49. Tensioning bolt I;

5. Sorting and screening components, 51. Angle adjustment mechanism, 511. Horizontal frame, 512. Rotating frame, 5121. Crossbar, 5122. Rotating rod, 513. Angle adjustment screw, 514. Hand wheel, 515. Fixed rod, 52. Active roller II, 53. Driven roller II, 54. Conveyor belt II, 541. Support plate, 55. Roller motor, 56. Connecting frame, 561. Tensioning plate II, 562. Tensioning bolt II, 563. Tensioning nut II, 57. Housing, 58. Angle display panel, 59. Sorting guide plate;

6. Feeding parts, 61. Support frame, 611. Upper supporting leg, 612. Connecting knob, 613. Support rod, 614. Lower supporting leg; 62. Feeding guide plate, 63. Feeding box, 64. Feeding trough, 65. Ear plate;

7. limit adjustment mechanism, 71. limit baffle, 72. adjustment screw rod Ⅰ, 73. limit clamping plate, 74. adjustment knob Ⅰ, 75. nut Ⅰ, 76. pin Ⅰ, 77. connection ear;

8. Current limiting adjustment mechanism, 81. Current limiting baffle, 811. End plate, 812. Bending connecting plate, 82. Brush roller, 83. Fixed plate, 84. Brush roller shaft, 85. Adjusting mounting plate, 86. Adjusting screw II, 87. Adjusting knob II, 88. Nut II;

9. Collection trough, 10. Collection box.

Detailed ways

The present invention is described in detail below with reference to the accompanying drawings and embodiments.

Embodiment: As shown in FIG1 , the present invention is a sorting and screening device for small and medium-sized block agricultural products, comprising a feeding component 6, a sorting and screening component 5, a base frame 1, a shell 57, a collecting trough 9 and a collecting box 10. The feeding component 6 and the sorting and screening component 5 are respectively arranged on a support frame 61 and a base frame 1, and their installation bottom surfaces are both horizontal to the ground, and the support frame 61 is higher than the base frame 1. The discharge port of the feeding guide plate 62 at the discharge end of the feeding component 6 is placed above the feed port end of the sorting and screening component 5. The feeding component 6 cooperates with the sorting and screening component 5 through the feeding guide plate 62 to output the material to the sorting and screening component 5. The screening component 5 includes an angle adjustment mechanism 51 and a conveying mechanism. The conveying mechanism is placed above the angle adjustment mechanism 51 and is rotatably connected through a pin shaft. The base frame 1 is horizontally arranged and is provided with a guide rail. Two groups of angle adjustment mechanisms 51 are symmetrically arranged on the guide rail of the base frame 1. One group of angle adjustment mechanisms 51 located at the feeding end is fixedly installed on the guide rail of the base frame 1, and the other group is slidably installed on the guide rail of the base frame 1. The two groups of angle adjustment mechanisms 51 are connected through a horizontal adjustment mechanism 3. The collecting trough 9 is placed on the base frame 1, below the gap between the conveyor belts II 54 in the two groups of conveying mechanisms. A collecting box 10 placed on the ground is provided below the collecting trough 9.

As shown in Figures 1 and 3-7, the feeding component 6 includes a support frame 61, a feeding guide plate 62, a conveying bearing mechanism 4 and a feeding box 63, a current limiting adjustment mechanism 8 and a quantity limiting adjustment mechanism 7 arranged thereon in sequence. The conveying bearing mechanism 4 is placed on the support frame 61, the feeding box 63 is placed at the feeding end of the conveying bearing mechanism 4, the current limiting adjustment mechanism 8 is placed at the discharging end of the feeding box 63, the quantity limiting adjustment mechanism 7 is placed above the discharging end of the conveying bearing mechanism 4, and the feeding guide plate 62 is placed below the discharging end of the conveying bearing mechanism 4 to receive the material and output the material to the top of the feeding end of the sorting and screening component 5 through the feeding guide plate 62, so as to facilitate the material to flow from the feeding component 6 into the sorting and screening component 5. The material is fed through the feeding box 63, and is transported along the conveyor belt Ⅰ46 of the conveying support mechanism 4 at the bottom. The material is limited by the flow limiting adjustment mechanism 8 set at its discharge end, and then limited by the quantity limiting adjustment mechanism 7. The material is guided to the top of the feeding end of the sorting and screening component 5 through the feeding guide plate 62, and then enters the position between the conveyor belts Ⅱ54 in the two groups of conveying mechanisms.

As shown in FIG6 , the transmission bearing mechanism 4 is connected to the support frame 61 by screws and nuts and is arranged horizontally, and includes two shells 41, an active roller Ⅰ43, a driven roller Ⅰ45, a support roller 44 and a conveyor belt Ⅰ46. The two shells 41 adopt a channel steel structure, and the notches are arranged oppositely and symmetrically. An active roller Ⅰ43 is arranged at one end between the two shells 41, and a driven roller Ⅰ45 is arranged at the other end. A support roller 44 is arranged between the active roller Ⅰ43 and the driven roller Ⅰ45. The number of the support rollers 44 is set according to actual needs. In this example, two support rollers 44 are arranged, and a conveyor belt Ⅰ46 is sleeved on the outer periphery of each roller. , one end of the active roller Ⅰ43 shaft extends out of a side housing 41 connected to a transmission motor 42, strip slots are opened on both housings 41 at the corresponding position of the driven roller Ⅰ45, and both ends of the driven roller Ⅰ45 shaft extend out of the strip slots, and a tensioning plate Ⅰ47 is installed near the strip slots on the outside of the two housings 41, one end of the tensioning bolt Ⅰ49 is connected to the tensioning plate Ⅰ47, and the other end passes through the driven roller Ⅰ45 shaft, and a tensioning nut Ⅰ48 is connected thereto, and the tension of the conveyor belt Ⅰ46 is adjusted by adjusting the tensioning nut Ⅰ48, and a plurality of fixing plates are arranged in parallel at the bottom between the two housings 41 for fixing the transmission bearing mechanism 4. Driven by the transmission motor 42, the active roller Ⅰ43 is driven to rotate, and then the conveyor belt Ⅰ46, the driven roller Ⅰ45, and the support roller 44 are driven to rotate, and the materials fed by the feeding box 63 are transmitted through the conveyor belt Ⅰ46.

As shown in FIG4 , the limit adjustment mechanism 7 includes two symmetrically arranged and adjustable limit baffles 71. The feed end openings of the two limit baffles 71 are larger than the discharge end openings. The limit baffles 71 are connected to the two housings 41 of the conveying and carrying mechanism 4 through two sets of screw adjustment devices I arranged at the end and the middle. The screw adjustment device I includes an adjustment screw rod I 72, a nut I 75, a limit clamping plate 73 and an adjustment knob I 74. One end of the adjustment screw rod I 72 is connected to the adjustable The limit baffle 71 is rotatably connected. Specifically, the limit baffle 71 is provided with a connecting ear 77, and the adjusting screw rod Ⅰ72 is provided with a connecting ring. The two are connected through a pin shaft Ⅰ76. The other end of the adjusting screw rod Ⅰ72 is provided with a nut Ⅰ75, a limit clamping plate 73 and an adjusting knob Ⅰ74 in sequence. The limit clamping plate 73 is an L-shaped bent plate, which is sleeved on one side plate of the adjusting screw rod Ⅰ72 and has a through hole that matches the adjusting screw rod Ⅰ72. The other side plate has a through hole that matches the conveying bearing mechanism 4. The mounting hole of the shell 41 is adjusted by the nut I75 and the adjusting knob I74; wherein, the lead screw adjusting device I near the middle of the limit baffle 71 has two mounting holes on the side plate of the limit clamping plate 73 connected to the shell 41 of the conveying and carrying mechanism 4, which is a two-point fixed connection; the end lead screw adjusting device I is close to the side of the limiting current adjusting mechanism 8, and has a mounting hole on the side plate of the limit clamping plate 73 connected to the shell 41 of the conveying and carrying mechanism 4, which is rotatably connected to the shell 41 of the conveying and carrying mechanism 4. When adjusting the rotation angle of the limit baffle 71, the lead screw adjusting device I near the middle of the limit baffle 71 is used as a support, and the connection point between the middle lead screw adjusting device I and the limit baffle 71 is used as a fulcrum. The rotation angle of the limit baffle 71 is adjusted by adjusting the feed of the adjusting screw I72 in the end lead screw adjusting device I and the coordinated rotation of the limit clamping plate 73; the adjustment angle range between the two limit baffles 71 is 0-80°. When adjusting the distance between the outlet ends of the two limit baffles 71, the two sets of screw adjustment devices I on the two limit baffles 71 are adjusted respectively, and the distance between the outlet ends of the two limit baffles 71 is adjusted by adjusting the rotation angle of the limit baffles 71, and the adjustment range of the distance is 0-255m. In this example, the adjustment angle between the two limit baffles 71 is 60°, and the distance between the two limit baffles 71 is 150mm, which is determined according to the screened material, so that the material is discharged in a single row or double row between the discharge ends of the two limit baffles 71.

As shown in Figure 5, the current limiting adjustment mechanism 8 includes an adjustment mounting plate 85, a current limiting baffle 81, a brush roller 82 and a screw adjustment device II. The brush roller 82 is connected to the current limiting baffle 81 through its brush roller shaft 84. The current limiting baffle 81 is provided with a bending connecting plate 812 on both sides of an end plate 811 of the bending plate, and is connected to the brush roller shaft 84 through the bending connecting plate 812. The end of the brush roller shaft 84 extending out of the bending connecting plate 812 is connected with a fixing plate 83. Adjustment mounting plates 85 connected to the discharge end of the feeding box 63 are provided at both ends of the brush roller 82. The fixing plate 83 is slidably connected to the adjustment mounting plate 85, that is, two circular holes are symmetrically opened on the fixing plate 83 relative to the two ends of the brush roller shaft 84, which are used to install screws that match the vertical strip slots on the adjustment mounting plate 85, and nuts are installed thereon. The brush roller 82 is fixed and limited to move and bear force, so that it can only move up and down through the screw adjustment device II; there is a gap between the end plate 811 with the bent connecting plate 812 and the brush roller 82, and one end of the adjusting screw rod II86 of the screw adjustment device II is connected to the end plate 811 with the bent connecting plate 812, and the other end passes through the ear plate 65 on the feeding box 63, and is fixed by adjusting the adjusting knobs II87 and nuts II88 on both sides of the ear plate 65 on the screw rod II86, so that the brush roller 82 moves along the vertical direction of the feeding trough 64 outlet provided at the outlet end of the feeding box 63 through the adjusting screw rod II86 to adjust the distance between the brush roller 82 and the upper surface of the conveyor belt I46, and the adjustment interval range is 30-100mm. In this example, the distance between the brush roller 82 and the upper surface of the conveyor belt I46 is 60mm. Among them, the brush roller 82 adopts a soft brush layer on the outer periphery of the roller to reduce damage to the material.

As shown in Figure 7, the feeding box 63 is connected to the two side shells 41 of the conveying support mechanism 4 by screws and nuts, and is placed above the conveyor belt I46. The feeding box 63 is a square welded part as a whole, and is opened at the top and bottom and the discharge end. A feeding trough 64 is arranged inside the feeding box 63. The feeding trough 64 is symmetrically arranged on the inner plate of the feeding box 63 by two inclined plates, and is used to place and output materials.

The feeding guide plate 62 is composed of guide side plates arranged on both sides of the guide bottom plate, and the width of its feed end is equal to the inner distance of the discharge end of the feeding component 6, and the discharge end has a closing end, that is: the width of the discharge end is smaller than the width of the feed end, and larger than the opening length of the discharge end of the limit adjustment mechanism 7. The feeding guide plate 62 is inclined, and its feed end is connected below the discharge end of the conveying support mechanism 4, and its discharge end is located above the feed end of the conveyor belt II 54 of the sorting and screening component 5 close to the feeding component 6, and the distance between it and the conveyor belt II 54 is 10mm-12mm, which is 10mm in this case.

As shown in Figure 1, the support frame 61 is an adjustable structure (existing technology), including four adjustable support legs, each support leg including an upper support leg 611, a lower support leg 614, a support rod 613 and a connecting knob 612, the upper support leg 611 is sleeved in the lower support leg 614, fixed by the connecting knob 612, and a support rod 613 is connected between the two lower support legs 614. In this example, a plurality of bolt holes with a spacing of 20 mm are opened on the upper support leg 611, and a bolt hole matching the upper support leg 611 is opened on the lower support leg 614. The overall height of the feeding component 6 is adjusted by adjusting different bolt holes, and the overall height adjustment range is 0-200 mm, which is fixed by the connecting knob 612 and the nut.

As shown in FIG3 , the sorting and screening component 5 includes an angle adjustment mechanism 51 and a transmission mechanism, wherein the transmission mechanism includes an active roller II 52, a driven roller II 53, a conveyor belt II 54, a connecting frame 56, a tensioning plate II 561, a tensioning bolt II 562, a tensioning nut II 563 and a roller motor 55. A conveyor belt II 54 is disposed on the outer surface of the active roller II 52 and the driven roller II 53. A connecting frame 56 is connected to the shaft of the active roller II 52 and the shaft of the driven roller II 53, respectively. The connecting frame 56 is supported on the conveyor belt II On one side of the conveyor belt Ⅱ54, a support plate 541 placed on the inner side of the conveyor belt Ⅱ54 is connected between the two connecting frames 56, a roller motor 55 is connected to the driving roller Ⅱ52, and strip slots are opened on the connecting frames 56 at both ends of the driven roller Ⅱ53. A tensioning plate Ⅱ561 is arranged near the strip slots on the outer side of the connecting frame 56. The shaft of the driven roller Ⅱ53 extends out of the strip slots, and one end of the tensioning bolt Ⅱ562 connected thereto is connected to the tensioning plate Ⅱ561, and the other end passes through the shaft of the driven roller Ⅱ53, and is connected to the tensioning nut Ⅱ563. Adjust the tensioning nut II 563 to tension the conveyor belt II 54; the angle adjustment mechanism 51 includes a horizontal frame 511, a rotating frame 512, an angle adjustment screw 513 and a hand wheel 514. The angle adjustment screw 513 is connected to the horizontal frame 511 along the moving direction of the guide rail on the bottom frame 1. One end of the angle adjustment screw 513 extends out of the horizontal frame 511 and is connected to the hand wheel 514. The other end is connected to the horizontal frame 511. The two inner side frames of the horizontal frame 511 along the moving direction of the guide rail on the bottom frame 1 are opened. The horizontal strip hole and the rotating frame 512 are composed of rotating rods 5122 hinged at both ends of the cross bar 5121. The cross bar 5121 is threadedly connected to the angle adjustment screw 513, and the two ends of the cross bar 5121 are round rods, which are connected to the horizontal strip holes of the two inner frames of the horizontal frame 511. The other end of the rotating rod 5122 is respectively rotatably connected to the connecting frame 56 of the active roller Ⅱ52 and the driven roller Ⅱ53. The end of the horizontal frame 511 away from the hand wheel 514 is rotatably connected to the connecting frame 56 of the active roller Ⅱ52 and the driven roller Ⅱ53. By turning the hand wheel 514, the angle adjustment screw 513 is driven to rotate, thereby pushing the cross bar 5121 threadedly connected thereto to move horizontally along the horizontal strip holes of the two inner side frames of the horizontal frame 511, driving the rotating rod 5122 on it to rotate around the cross bar 5121, and the two connecting frames 56 connected to the rotating rod 5122 to rotate around the pin shafts rotatably connected to the opposite side of the horizontal frame 511, so as to achieve the angle adjustment of the active roller Ⅱ52 and the driven roller Ⅱ53; the upper surfaces of the conveyor belts Ⅱ54 of the two sets of conveying mechanisms are in a V-shaped structure as a whole, and the angle between the V-shaped belts formed therein is The adjustment range is 30-120°. In this example, the angle between the V-belts formed on the upper surfaces of the conveyor belts Ⅱ54 of the two groups of sorting and screening components 5 is 90°. During the transmission process of the two conveyor belts Ⅱ54, by adjusting the distance and angle between the conveyor belts Ⅱ54, materials smaller than the standard and waste materials such as soil are collected in the collection box 10 through the collection trough 9 under the conveyor belt Ⅱ54, and the materials that meet the standards are transmitted by the two conveyor belts Ⅱ54 and the weight of the materials themselves, so that the materials are output in a single row, orderly and neatly arranged from the sorting guide plate 59 at the discharge end, so as to facilitate the retrieval of the materials.

Furthermore, the two groups of angle adjustment mechanisms 51 are connected through a horizontal adjustment mechanism 3, which includes an adjustment screw 31, an adjustment wheel 32 and a guide rail on the chassis 1. A fixed rod 515 is provided at the bottom of the opposite sides of the horizontal frames 511 of the two groups of angle adjustment mechanisms 51. One end of the adjustment screw 31 is connected to the fixed rod 515 of the angle adjustment mechanism 51 installed in a fixed manner, and the other end passes through the threaded hole of the fixed rod 515 of the angle adjustment mechanism 51 installed in a sliding manner and extends out of the chassis 1. The adjustment wheel 32 is connected to the fixed rod 515 of the angle adjustment mechanism 51 installed in a sliding manner and extends out of the chassis 1. The horizontal frames 511 of the two groups of angle adjustment mechanisms 51 are both mounted on the guide rail of the chassis 1. By rotating the adjustment wheel 32 to rotate the adjustment screw 31, the fixed rod 515 of the moving side angle adjustment mechanism 51 threadedly connected thereto is driven to move in the horizontal direction, thereby adjusting the horizontal distance between the two groups of conveyor belts II 54. The spacing adjustment range is 0-100 mm. In this example, the horizontal distance between the two groups of conveyor belts II 54 is 40 mm. On the outside of the base frame 1 and at the discharge end of the sorting and screening component 5, a size display bar is provided to display the gap between the bottom ends of the two groups of conveyor belts II 54.

Furthermore, a shell 57 is installed on the outside of the sorting and screening component 5, and two groups of shells 57 are symmetrically arranged on the outside of both sides of the horizontal frame 511. An angle display panel 58 is arranged in the shell 57 on both sides of the angle adjustment mechanism 51. The angle display panel 58 is semi-circular in shape, has two arc grooves and angle scales, one end is connected to the connecting frame 56, and rotates with the connecting frame 56. The two side frames of the horizontal frame 511 are provided with connecting columns that cooperate with the arc grooves. When adjusting the angle, the angle display panel 58 moves with the connecting frame 56, and the arc grooves on it cooperate with the connecting columns on both sides of the horizontal frame 511 to slide, displaying the rotation angle, which is used to prevent external factors from affecting the operation of the device.

Furthermore, sorting guide plates 59 are respectively connected to the bottom ends of the connecting frames 56 of the two groups of active rollers II 52. The sorting guide plates 59 extending out of the active rollers II 52 are rectangular plates. The sorting guide plates 59 of the two groups of active rollers II 52 are symmetrically and tiltedly arranged, and are V-shaped as a whole, which is convenient for the output of materials. A feed end baffle 2 is also provided on one side above the base frame 1 and at the feed end of the sorting and screening component 5 to prevent the material from leaving the working range of the sorting and screening device.

Furthermore, the base frame 1 is composed of a support frame and four support legs arranged below. The support frame is arranged horizontally and a guide rail is arranged on the support frame. The structure of the four support legs at the bottom is the same as the support leg structure on the support frame 61. The height of the base frame 1 can be adjusted by fixing the different adjustment bolt hole positions thereon with a knob, and the height adjustment range is 0-200mm.

Furthermore, the collecting trough 9 described in this example is placed on the inner side of the base frame 1 and below the gap between the two groups of conveyor belts II54. Its feeding end is rectangular, with a width equal to the distance to the inner side of the base frame 1 and a length greater than the bottom spacing of the two conveyor belts II54. The discharging end has a closing opening, and a collecting box 10 is arranged below it for collecting waste materials smaller than the standard, such as soil, etc., which flow out from the bottom gap between the upper surfaces of the two groups of conveyor belts II54 in the sorting and screening component 5.

The collecting box 10 described in this example is placed below the collecting trough 9 and installed on the ground, and the collecting box 10 is placed below the discharge port at the lower end of the collecting trough 9 to collect waste flowing out of the discharge port at the lower end of the collecting trough 9.

It should be noted that the device generally adopts a conveyor belt to work, and the power output is provided by a motor. The speed of the conveyor belt Ⅰ46 of the feeding component 6 is less than the speed of the conveyor belt Ⅱ54 of the sorting and screening component 5 to achieve the sorting of materials. There are support rollers 44 in the conveyor belt Ⅰ46 and support plates 541 in the conveyor belt Ⅱ54 to ensure the stability of material operation; when adjusting the limit adjustment mechanism 7, the adjustment angles of the two limit baffles 71 should be the same; when adjusting the sorting and screening component 5, the adjustment angles of the two sets of angle adjustment mechanisms 51 should be the same.

When the present invention is in use, the limit regulating mechanism 7, the flow limiting regulating mechanism 8, the feeding guide plate 62, the support frame 61, the bottom frame 1, the sorting and screening component 5 and other devices are adjusted accordingly according to the actual working materials, the device is started, and the material is placed in the feeding box 63. The material will be transported by the conveying bearing mechanism 4 in the feeding box 63, and the discharge amount of the feeding trough 64 in the feeding box 63 is limited by the flow limiting regulating mechanism 8. The number of discharged materials is then limited by the limit regulating mechanism 7 to accurately enter the number of materials entering the sorting and screening component 5. When the material enters the sorting box 63 through the feeding guide plate 62, the material will be discharged from the feeding trough 64 in the feeding box 63. After passing through the screening component 5, it falls on the feeding end of the conveyor belt Ⅱ54 of the conveying mechanism in the sorting and screening component 5. During the transmission process of the two conveyor belts Ⅱ54, the materials smaller than the standard and waste materials such as soil are collected in the collecting box 10 through the collecting trough 9 under the two conveyor belts Ⅱ54 by adjusting the distance and angle between the two conveyor belts Ⅱ54. The materials that meet the standards are transmitted by the two conveyor belts Ⅱ54 and the weight of the materials themselves, so that the materials are output in a single row, orderly and neatly arranged from the sorting guide plate 59 at the discharge end, so as to facilitate the use of the materials, thereby completing the entire feeding and sorting and screening process.

The components not described in detail in this application are all existing conventional technologies and will not be described in detail here.

It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims (10)

1. A sorting and screening device for small and medium-sized block agricultural products, characterized in that it comprises a feeding component, a sorting and screening component, a collecting trough and a collecting box, the feeding component and the sorting and screening component are respectively arranged on a support frame and a base frame, the installation bottom surfaces of which are both horizontal to the ground, and the support frame is higher than the base frame, the feeding guide plate discharge port at the discharge end of the feeding component is placed above the feeding end of the sorting and screening component, the sorting and screening component comprises an angle adjustment mechanism and a conveying mechanism, the conveying mechanism is placed above the angle adjustment mechanism and is rotatably connected to the angle adjustment mechanism, the base frame is provided with guide rails, two groups of angle adjustment mechanisms are symmetrically arranged on the base frame guide rails, one group of angle adjustment mechanisms located at the feeding end is fixedly mounted on the base frame guide rails, and the other group is slidably mounted on the base frame guide rails, the two groups of angle adjustment mechanisms are connected by a horizontal adjustment mechanism, the collecting trough is placed on the base frame, and is located below the gap between the two groups of conveying mechanisms, and a collecting box placed on the ground is arranged below the collecting trough. 2. According to claim 1, the sorting and screening device for small and medium-sized block agricultural products is characterized in that: the feeding component includes a support frame, a feeding guide plate, a conveying bearing mechanism and a feeding box, a current limiting adjustment mechanism and a quantity limiting adjustment mechanism arranged thereon in sequence, the conveying bearing mechanism is placed on the support frame, the feeding box is placed at the feeding end of the conveying bearing mechanism, the current limiting adjustment mechanism is placed at the discharging end of the feeding box, the quantity limiting adjustment mechanism is placed above the discharging end of the conveying bearing mechanism, the feeding guide plate is placed below the discharging end of the conveying bearing mechanism, receives the material, and outputs the material to the top of the feeding end of the sorting and screening component through the feeding guide plate. 3. The sorting and screening device for small and medium-sized block agricultural products according to claim 2 is characterized in that: the transmission bearing mechanism is horizontally arranged, including two shells, an active roller I, a driven roller I, a support roller and a conveyor belt I. The two shells adopt a channel steel structure, and the notches are relatively and symmetrically arranged. An active roller I is arranged at one end between the two shells, and a driven roller I is arranged at the other end. A support roller is arranged between the active roller I and the driven roller I. A conveyor belt I is sleeved on the outer periphery of each roller, and one end of the active roller I shaft extends out of a side shell connected to a transmission motor. Strip slots are opened on the two shells corresponding to the position of the driven roller I, and the two ends of the driven roller I shaft extend out of the strip slots respectively. A tensioning plate I is installed near the strip slot on the outside of the two shells, one end of the tensioning bolt I is connected to the tensioning plate I, and the other end passes through the driven roller I shaft, and a tensioning nut I is connected thereto. The tension of the conveyor belt I is adjusted by adjusting the tensioning nut I, and a plurality of fixing plates are arranged in parallel at the bottom between the two shells. 4. The sorting and screening device for small and medium-sized bulk agricultural products according to claim 2 is characterized in that: the limit adjustment mechanism includes two symmetrically arranged and adjustable limit baffles, the feed end openings of the two limit baffles are larger than the discharge end openings, and the limit baffles are connected to the two shells of the conveying and carrying mechanism through two sets of screw adjustment devices I arranged at the end and the middle, and the screw adjustment device I includes an adjusting screw rod I, a nut I, a limit clamping plate and an adjusting knob I, one end of the adjusting screw rod I is rotatably connected to the adjustable limit baffle, and the other end of the adjusting screw rod I is sequentially provided with a nut I, a limit clamping plate and an adjusting knob I, the limit clamping plate is an L-shaped bent plate, which is sleeved on a side plate of the adjustable screw rod I and has a through hole that matches the adjustable screw rod I, and the other side plate has a mounting hole that matches the shell of the conveying and carrying mechanism, which is adjusted by the nut I and the adjusting knob I; wherein, the plate close to The lead screw adjustment device I in the middle of the limit baffle has two mounting holes on the side plate of the limit clamping plate connected to the shell of the transmission bearing mechanism, which is a two-point fixed connection; the end lead screw adjustment device I is close to the side of the current limiting adjustment mechanism, and has a mounting hole on the side plate of the limit clamping plate connected to the shell of the transmission bearing mechanism, which is rotatably connected to the shell of the transmission bearing mechanism. When adjusting the rotation angle of the limit baffle, the lead screw adjustment device I close to the middle of the limit baffle is used as support, and the connection point between the middle lead screw adjustment device I and the limit baffle is used as a fulcrum. The rotation angle of the limit baffle is adjusted through the end lead screw adjustment device I, and the adjustment angle range between the two limit baffles is 0-80°; when adjusting the distance between the outlet ends of the two limit baffles, the two sets of lead screw adjustment devices I on the two limit baffles are adjusted respectively, and the distance between the outlet ends of the two limit baffles is adjusted by adjusting the rotation angle of the limit baffle. 5. The sorting and screening device for small and medium-sized bulk agricultural products according to claim 2 is characterized in that: the current limiting adjustment mechanism includes an adjustment mounting plate, a current limiting baffle, a brush roller and a screw adjustment device II, the brush roller is connected to the current limiting baffle through its brush roller shaft, the current limiting baffle is provided with bending connecting plates on both sides of one end plate of the bending plate, the brush roller shaft is connected through the bending connecting plate, the brush roller shaft extends out of the bending connecting plate end and is connected to a fixing plate, and adjustment mounting plates connected to the discharge end of the feeding box are arranged at both ends of the brush roller, and the fixing plate and the adjustment mounting plate slide Dynamic connection, that is, two circular holes are symmetrically opened on the fixing plate at both ends of the brush roller shaft, screws matching the vertical strip slots on the adjusting mounting plate are installed on the circular holes, and nuts are installed on them; there is a gap between the end plate with the bent connecting plate and the brush roller, one end of the adjusting screw Ⅱ of the screw adjustment device Ⅱ is connected to the end plate with the bent connecting plate, and the other end passes through the ear plate on the feeding box, and is fixed by adjusting knobs Ⅱ and nuts Ⅱ on both sides of the ear plate on the adjusting screw Ⅱ, so that the brush roller moves along the feeding trough outlet set at the output end of the feeding box through the adjusting screw Ⅱ. 6. The sorting and screening device for small and medium-sized block agricultural products according to claim 2 is characterized in that: the feeding guide plate is composed of guide side plates arranged on both sides of the guide bottom plate, the width of the feed end is equal to the inner distance of the discharge end of the feeding component, and the discharge end has a closing, that is: the width of the discharge end is smaller than the width of the feed end, and larger than the opening width of the discharge end of the limit adjustment mechanism; the feeding guide plate is inclined, its feed end is connected below the discharge end of the conveying support mechanism, and its discharge end is located above the conveyor belt II of the sorting and screening component close to the feeding component. 7. The sorting and screening device for small and medium-sized bulk agricultural products according to claim 1 is characterized in that: the sorting and screening components include an angle adjustment mechanism and a transmission mechanism, the transmission mechanism includes an active roller II, a driven roller II, a conveyor belt II, a connecting frame, a tensioning plate II, a tensioning bolt II, a tensioning nut II and a roller motor, a conveyor belt II is arranged outside the active roller II and the driven roller II, a roller motor is connected to the active roller II, strip slots are opened on the connecting frame at both ends of the driven roller II, a tensioning plate II is arranged on the outside of the connecting frame near the strip slots, both ends of the driven roller II shaft extend out of the strip slots, one end of the tensioning bolt II is connected to the tensioning plate II, and the other end passes through the driven roller II shaft, and the tensioning nut II is connected thereto, through By adjusting the tensioning nut II, the conveyor belt II is tensioned. The angle adjustment mechanism includes a horizontal frame, a rotating frame, an angle adjustment screw and a hand wheel. The horizontal frame is connected with an angle adjustment screw along the moving direction of the guide rail on the base frame. One end of the angle adjustment screw extends out of the horizontal frame and is connected with a hand wheel. The two inner side frames of the horizontal frame along the moving direction of the guide rail on the base frame are provided with horizontal strip holes. The rotating frame is composed of rotating rods hinged at both ends of the cross bar. The cross bar is connected to the angle adjustment screw, and the two ends of the cross bar are round rods, which are connected to the horizontal strip holes of the two inner side frames of the horizontal frame. The ends of the rotating rods are respectively connected to the connecting frames of the active roller II and the driven roller II, and the end of the horizontal frame away from the hand wheel is rotatably connected to the connecting frames of the active roller II and the driven roller II. 8. According to claim 1, the sorting and screening device for small and medium-sized block agricultural products is characterized in that: the horizontal adjustment mechanism includes an adjusting screw, an adjusting wheel and a guide rail on the base frame, and fixed rods are arranged at the bottom ends of the opposite sides of the horizontal frames of the two sets of angle adjustment mechanisms. One end of the adjusting screw is connected to the fixed rod of the angle adjustment mechanism, and the other end passes through the threaded hole on the sliding fixed rod of the angle adjustment mechanism and extends out of the base frame, to which the adjusting wheel is connected, and the horizontal frames of the two sets of angle adjustment mechanisms are both mounted on the guide rail of the base frame. 9. According to claim 7, the sorting and screening device for small and medium-sized block agricultural products is characterized in that: a shell is also installed on the outside of the sorting and screening component, and two groups of shells are symmetrically arranged on the two outer frames of the horizontal frame. An angle display panel is arranged in the shell on both sides of the angle adjustment mechanism. The angle display panel is semicircular in shape as a whole, has two arc grooves and angle scales, one end is connected to the connecting frame, and the two side frames of the horizontal frame are provided with connecting columns that cooperate with the arc grooves. When adjusting the angle, the angle display panel moves with the connecting frame, and the arc grooves on it cooperate with the connecting columns on both sides of the horizontal frame to slide and display the rotation angle. 10. The sorting and screening device for small and medium-sized bulk agricultural products according to claim 7 is characterized in that: sorting guide plates are respectively connected to the bottom ends of the connecting frames of the two groups of active rollers II, the sorting guide plates extending out of the active rollers II are rectangular plates, and the sorting guide plates of the two groups of active rollers II are symmetrically and obliquely arranged; a feed end baffle is also arranged on one side above the base frame and at the feed end of the sorting and screening component.