CN203884160U - Cutting and pulling anti-blocking device of corn ridge planting no-tillage seeder - Google Patents

Abstract

The utility model relates to a cutting and anti-blocking device for a corn ridge-planting no-tillage seeder, which belongs to the technical field of agricultural machinery. It includes a main shaft, a connecting sleeve plate, an inclined plate, a cutting device and a stubble removal and blocking prevention device. The cutting device is installed in the middle of the main shaft, and the stubble removal and blocking prevention devices are two groups, which are connected to both ends of the main shaft symmetrically to the cutting device. The stubble picking wheel of the stubble picking and anti-blocking device is set at an angle with the cutting disc knife of the breaking and cutting device, so that the two symmetrical stubble picking wheels are installed on both sides of the end of the breaking and cutting device in an "eight" shape. The stubble wheel moves the stubble backwards and pushes the stubble, straw and weeds sideways at the same time; the connecting sleeve plate is symmetrically connected between the breaking and cutting device on the main shaft and the stubble removal and anti-blocking device, and is separated from the stubble removal and anti-blocking device. connection, during work, the two connection sleeves are respectively connected with the corn ridge no-tillage planter. The utility model can not only break and cut stubble, straw and weeds, but also pick stubble, throw the straw, stubble and weeds to the side and rear, and form a clean seed bed on the ridge to ensure Shredding quality.

Description

Cutting and anti-blocking device for corn ridge and no-tillage seeder

technical field

The invention belongs to the technical field of no-tillage seeders, in particular to a cutting and anti-blocking device for no-tillage corn ridge planters, which is suitable for no-tillage corn ridge planters in Northeast China.

Background technique

In recent years, conservation tillage technology has been widely promoted and used in my country, and no-tillage seeder is an important tool for conservation tillage. Although the current no-till planter has been greatly developed, there are still many problems, which affect the popularization of no-till planter and the development and promotion of conservation tillage. The main problems of the no-tillage planter for corn ridge cultivation in Northeast China are: some machines destroy the original ridge and form new furrows, the weight is overweight, and the ridge platform is flattened, which affects the growth of crops. The most prominent problem is to maintain the ridge shape. When sowing in ridge farming, the ground temperature can be increased, and the summer can prevent floods and drain waterlogging. Once the ridge type is destroyed, the advantage of ridge farming will be lost.

Compared with the traditional ridge planter or ridge less mulch corn no-tillage planter, there is a problem of dealing with stubble during sowing: firstly, the stubble on the ridge must be cleaned to make it plowable. degree; the second and most important aspect is to solve the clogging problem caused by residue mulching. Due to differences in regions and varieties during ridge farming, some residual crops have thick stubble and a large amount of straw coverage, especially in the Northeast. The technology to solve the problem of blockage caused by mulch has become one of the key technologies of ridge-covered corn no-tillage planter.

Compared with the flat-planting corn no-tillage planter, the ridge-planting corn no-tillage planter has the problem of how to ensure that the planter operates on the ridge platform to maintain the ridge shape and clear stubble to prevent blockage. The no-tillage planter for ridge-planting corn must have the function of maintaining the ridge type or reducing the damage to the ridge type, especially in the northeast region. It is particularly important to maintain the ridge type; at the same time, it can clear stubble and prevent blockage to increase the versatility of the no-tillage planter. Due to different regions, the requirements for ridge height, ridge distance, and plant distance are also different. It is required that the machine can adjust the height and width of stubble breaking and ditching devices, anti-blocking devices, sowing and fertilizing devices and other components according to actual ground conditions to adapt to different requirements. ground conditions to achieve real-time adjustment.

The problem that needs to be solved urgently for the no-tillage corn ridge planter is how to prevent blockage when faced with a large amount of straw mulch under the premise of ridge farming coverage. Anti-blocking is not only the main factor affecting the operation efficiency and seeding quality of ridge-cultivation no-tillage seeders, but also the key to the success or failure of no-tillage seeders on ridges. Especially in Northeast my country, the straw of crops is relatively thick and the residual amount is relatively large compared with other places. The existing no-tillage seeder often occurs clogging during operation, and it is difficult to remove the clogging by itself, and manual assistance is often required to remove the clogging , Once blocked, it will affect the work quality and efficiency. In addition, whether the anti-blocking effect is good will directly affect the shape of the seed ditch and the seed bed, thereby further affecting the emergence rate, survival rate and yield of crops.

There are two stubble breaking methods used by foreign no-tillage seeders: one is to add a stubble breaking disc knife in front of the opener, and rely on the sharp edge of the disc knife and sufficient gravity to cut off the straw, root stubble and cut the soil. , which has a huge structure and is mostly traction type; the other is the shovel-type stubble-breaking ditch opener, which has good performance in soil penetration, does not need to increase the counterweight, and has a small weight of the whole machine, but the soil is turned over a lot during work, and it is easy to hang grass and clogged. This requires the soil working parts of the no-tillage seeder to have good passability, wear resistance and corrosion resistance while breaking stubble and chopping straw. The effect of stubble cutting and anti-blocking will directly affect the shape of seed ditch and seed bed, affect the effect of sowing, and further affect the emergence rate, survival rate and yield of crops. The stubble breaking and anti-blocking devices commonly used at home and abroad are notch disc cutters and corrugated disc cutters. The notched disc knife has a certain impact and is easier to cut stubble, but there is a missing cutting area in the notch of the notched disc knife, which makes it impossible to cut to the bottom of the stubble at the largest gap; the stubble cutting resistance and power of the corrugated disc knife The consumption is large, and due to the shape of the corrugated disc cutter, the seed ditch is relatively large. After analysis and research, foreign products generally have relatively good wear resistance and relatively high reliability, and the stubble breaking effect is relatively good, but the price is expensive. The research on stubble breaking and anti-blocking of no-tillage planters in my country is still in its infancy, and the main research work is still concentrated on the research on the overall stubble breaking mechanism. There are few researches on the production technology of the disc blade stubble breaking function, which leads Domestic stubble breaking knives have a large gap with foreign products in terms of product wear resistance, reliability, and product stubble breaking effect, which to a certain extent restricts the promotion and promotion of conservation tillage in my country. develop.

Contents of the invention

In order to solve the problems existing in the above-mentioned no-tillage seeder and to better promote protective tillage, the present invention provides a cutting and anti-blocking device for a no-tillage corn seeder for ridge cultivation, which realizes stubble breaking at one time under the ground conditions covered by no-tillage ridge Ridge clearing operations.

The technical scheme that the present invention adopts is as follows:

The invention includes a main shaft, a connecting sleeve plate, a slant plate, a cutting device and a stubble breaking and anti-blocking device. The breaking and cutting device is installed in the middle of the main shaft. At both ends of the main shaft, the stubble picking wheel of the stubble picking and anti-blocking device is set at an angle with the cutting disc knife of the cutting device, so that the two symmetrical stubble picking wheels are installed at the end of the cutting device in an "eight" shape. On both sides, the stubble wheel can move the stubble backwards and push the stubble sideways at the same time; the connecting sleeve is symmetrically connected between the cutting device and the stubble removal and anti-blocking device on the main shaft, and is separated from the stubble removal and anti-blocking device. When connecting, the two connecting sleeves are respectively connected with the frame of the corn ridge no-tillage planter during work.

Further, the breaking device includes two cutting disc knives symmetrically installed on the main shaft, a first bearing and a bearing end cover, and the two breaking cutting disc knives are installed on the main shaft through the first bearing and the bearing end cover , the installation distance D of the two cutting disk cutter heads is 1-2 mm, and the outer circumference of the cutting disk cutter is a spiral blade.

Further, the first bearing is a deep groove ball bearing with sealing rings at both ends, the outer sides of the two cutting disc cutter heads are fixed to the bearing end cover, and the outer end of the bearing end cover is connected to the main shaft through the sealing ring; the first bearing shaft The inner side is fixed by the shaft shoulder, and the outer side is fixed by the circlip.

Further, the helical blades of the two cutting disc knives have two different numbers of teeth from 7 to 13, and rotate asynchronously and alternately penetrate into the soil.

Further, the tooth shape of the spiral blade is an Archimedean spiral arc, and the formed cutting disc knife is a notched disc knife.

Further, the two cutting disc knives are 9-tooth and 11-tooth Archimedes spiral arc-shaped notch disc knives respectively, and the arc of the blade has serrations, and the cutting disc spiral blade The diameter φ is 420～460mm, and the two disc cutters are edged on both sides, and the edge angle is 20°～25°.

Further, the stubble picking anti-blocking device is divided into two groups, which are symmetrically connected to both ends of the main shaft, and each group includes a swash plate, a stubble picking wheel, a stubble picking shaft, a second bearing, and inner and outer stubble picking wheel end covers, The stubble picking wheel is a star claw-shaped bionic wheel formed by arranging a plurality of helical blades along the outer periphery of its disk. The stubble picking wheel is installed at one end of the sloping plate, and the middle part of the sloping plate is installed on the main shaft through a sleeve and rotates around the main shaft. The other end of the inclined plate is connected to the cover plate through the adjusting device.

Further, the installation deflection angle θ between the stubble picking wheel and the cutting disc cutter is 30°-35°, and the horizontal distance is 3-5 cm.

Further, the sloping plate is a double-bending plate, the two ends of which are deflected along the horizontal and vertical directions respectively, and the deflected ends in the horizontal direction are bent so that the two sloping plates are installed on the main shaft to form an outer "eight" structure, The horizontal deflection angle θ is 30°-35°, and the vertical deflection end is connected to the sleeve plate through the adjustment device.

Further, the adjustment device includes a spring, a pull rod and a nut. The pull rod passes through the pull rod sleeve on the cover plate, and one end is connected to the swash plate in rotation, and the other end is fitted with a spring. The end is equipped with a nut, and the preload of the spring is adjusted through the nut Adjust the height of the stubble wheel in real time according to the actual ground conditions.

The beneficial effects of the present invention are:

1. The breaking and cutting device of the present invention adopts a double-disk breaking and cutting mechanism composed of two disc cutters with different numbers of teeth. The two cutting and cutting disc serrated knives are driven by the soil resistance under the drive of the tractor to realize asynchronous rotation, and alternately enter the soil to realize Cutting stubble, cutting off straw and weeds, avoiding the phenomenon of missed cutting when cutting root stubble. At the same time, the two discs can be inserted alternately into the soil to reduce the working resistance of the corn ridge no-tillage planter, increase the number of cutting times, and improve the efficiency of stubble breaking . Among them, the helical knife teeth of the cutting disc adopt Archimedes spiral arc knife, and the arc length of each arc knife is greater than the total length of the circumference of the same diameter, increasing the contact arc length, improving the efficiency and probability of stubble cutting, and The formed gap disc cutter has impact force, which increases stubble cutting strength and reduces working resistance.

2. The stubble picking and anti-blocking device of the present invention adopts the star claw-shaped bionic stubble picking wheel and is installed in a symmetrical "eight" shape outwardly, which can effectively move backward and push stubble, straw and weeds sideways, and clean the seed bed , to ensure the working quality and anti-blocking performance of the corn ridge no-tillage planter.

3. In the present invention, the stubble picking wheel and the two cutting disc serrated knives are installed at an off angle. When working, the horizontal distance between the star claw-shaped bionic stubble picking wheel and the two cutting disc saw tooth knives is 3 to 5 cm. Neither interferes with clogging, nor misses cutting straw, stubble and weeds. The star-claw-shaped bionic stubble picking wheel scratches the straw, stubble and weeds through the star-shaped claws during work, and rotates under the traction of the tractor. The stubble and weeds are thrown to the side and rear, and pushed into the furrows on both sides, forming a clean seed bed on the furrows, increasing the passability of the machine tools, reducing the occurrence of clogging, and creating a new environment for the precision sowing of the no-tillage corn seeder. Good soil environmental conditions.

4. The adjusting device of the present invention can adjust the height of the star-claw-shaped bionic stubble wheel in real time according to the actual ground conditions, and can effectively achieve adaptability to changes in ground conditions and profiling functions.

5. The present invention is installed on the corn ridge no-tillage seeder, which can simplify the structure of the existing corn ridge no-tillage seeder, reduce the weight of the whole machine, reduce the manufacturing cost, effectively prevent entanglement and blockage, improve the quality of stubble breaking, and solve the current problem of northeast corn The technical bottleneck of no-tillage planters for ridge farming, to achieve no-tillage sowing operations that maintain the ridge shape, provide new technologies for the use of the advantages of ridge farming in Northeast China and the promotion of conservation tillage, and for the design and improvement of new corn ridge no-tillage planters Provide new key components.

6. The present invention can not only break and cut stubble, straw and weeds, but also pull stubble, throw straw, stubble and weeds sideways and rearwards, push them into the furrows on both sides, and form a clean seed bed on the furrows , increase the passability of the machine, reduce the occurrence of clogging, and create a good soil environment condition for the precision sowing of the corn ridge no-tillage planter. It is not only necessary to complete the stubble breaking function of the ordinary corn ridge no-tillage planter, but also to ensure the quality of the stubble breaking, prevent the entanglement and blockage of the stubble, and create a good seed bed model and soil conditions for the corn ridge no-tillage planter.

Description of drawings:

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the structure of the device for cutting and breaking stubble in Fig. 1 .

Fig. 3 (a), (b) are the structural schematic diagrams of the two cutting disc cutters in Fig. 2 .

Fig. 4 is a schematic diagram of the assembly structure of the stubble picking and anti-blocking device in Fig. 1 .

Fig. 5 is a structural schematic diagram of the stubble picking wheel in Fig. 4 .

Fig. 6 is a schematic diagram of the structure of the inclined plate in Fig. 4 .

FIG. 7 is a top view of FIG. 6 .

Fig. 8 is a schematic diagram of the structure of the top cover in Fig. 1 .

FIG. 9 is a top view of FIG. 8 .

In the figure: 1. Stubble picking wheel, 2. Stubble picking wheel end cover, 3. Stubble picking shaft, 4. Inclined plate, 5. Sleeve plate, 6. Spring, 7. Pull rod, 8. Pull rod cover, 9. Top cover , 10. The first cutting disc knife, 11. The second cutting disc knife, 12. Pin shaft, 13. Main shaft, 14. Bearing end cover, 15. Sealing ring, 16. Circlip, 17. Sleeve , 18. First bearing, 19. Countersunk head screw, 20. Second bearing, 21. Nut, 22. First connecting hole, 23. Second connecting hole, 24. Third connecting hole, 25. Adjusting hole, 26 . Vertical plate, 27. Horizontal plate, 28. Block.

Detailed ways

The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

Embodiment 1: As shown in Fig. 1 and Fig. 3, the present invention includes a main shaft 13, a sleeve plate 5, a slant plate 4, a breaking device and a stubble picking anti-blocking device. The anti-blocking device is two groups, which are symmetrical to the breaking and cutting device and connected to the two ends of the main shaft 13. The stubble picking wheel 1 of the stubble picking and anti-blocking device is set at an angle with the cutting disc knife of the breaking and cutting device, so that the two symmetrical stubble picking The wheel 1 is installed on both sides of the end of the cutting disc cutter in an "eight" shape, and the stubble wheel 1 can simultaneously move backwards and sideways push stubble, straw and weeds; the sets of plates 5 are symmetrically connected On the main shaft 13, between the cutting device and the stubble removal and anti-blocking device, and respectively connected with the stubble removal and anti-blocking device, during work, the two sets of plates 5 are respectively connected with the frame of the corn ridge no-tillage planter, and the cover plate 5 The height is designed according to the installation height on the corn ridge no-tillage seeder, and the width is designed according to the length of the pull rod 7; it is installed on the frame of the corn ridge no-tillage seeder through the top cover 9.

As shown in Fig. 2, the described cutting device includes two cutting disc knives symmetrically installed on the main shaft, a first bearing 18 and a bearing end cover 14, and the two cutting disc serrated knives are respectively the first breaking and cutting discs. The disc knife 10 and the second cutting disc knife 11 are sealed and installed on the main shaft 13 through the first bearing 18 and the end cover of the bearing respectively, and cooperate with the main shaft 12 in clearance. The installation distance D between the two cutting disc serrated knives is 1.5 mm, the cutting disc knife is a spiral blade along the outer circumference.

As shown in Figure 2, the first bearing 18 is a deep groove ball bearing with sealing rings at both ends, the outer sides of the two cutting disc serrated knives and the bearing end cover 14 are fixed by countersunk head screws 19, and the outer ends of the bearing end cover 14 It is connected with the main shaft 13 through the sealing ring 15; the first bearing 18 is fixed axially by the inner shoulder, and the outer side is fixed by the circlip 16. The sealing ring 15 is a felt ring.

As shown in Figure 3 (a), (b), the helical blades of the two broken disc sawtooth knives are respectively 9 teeth and prime number 11 teeth, and the tooth profile of the helical blades is Archimedes spiral arc , with serrations on the arc to ensure the sharpness of the blade, reduce working resistance and improve work efficiency during work; a notched disc serrated knife that forms an Archimedes spiral arc; asynchronous rotation, alternate entry into the soil, cutting circle The diameter φ of the disc spiral blade is 420mm, and the two sides of the two notched disc knives are edged, and the edge angle is 20°～25°, so as to ensure uniform force during work.

The two sawtooth disc cutters with different numbers of teeth are driven by the tractor and driven by the soil resistance to realize asynchronous rotation when working, and alternately enter the soil, avoiding the missing cutting image when cutting stubble. Alternate entry into the soil can reduce the working resistance of the corn ridge no-tillage planter, increase the cutting times, and improve the efficiency of stubble breaking.

The structural parameters and blade shape of the two cutting discs are the best structural parameters optimized on the basis of theoretical analysis, calculation and orthogonal test based on the physical and chemical properties of the plow layer soil and the size of the ridge in the no-tillage ridge farming mode in Northeast China. Sure. Based on the principle of cutting stubble, stalks and weeds with the cutter and the conditions that the ideal edge curve of the cutter should meet, according to the theory of the Archimedes spiral, the notched disc serrated cutter of the present invention requires a certain impact resistance Resistance, sharpness and wear resistance, etc. The polar coordinate equation of the Archimedes spiral is R=R ₀ +Ka, R is the polar radius, R ₀ is the starting radius, K is a constant, and a is the polar angle. The advantages of choosing the Archimedes spiral as the notched disc serrated knife are: ①The dynamic sliding cutting angle of the Archimedes spiral cutting edge becomes larger and larger as the cutting edge cuts in and out, so the sliding cutting effect is good; ②It can avoid the missing cutting problem of the conventional notched disc; ③For the root stubble buried deep below the surface, it can cut the stubble from near to far, and the effect of entering the soil is good. ④ Compared with complex cutting edge curves, the processing and manufacturing of this type of cutting edge curves are more convenient.

As shown in Figures 4 and 5, the anti-blocking devices are two groups, which are symmetrically connected to the two ends of the main shaft 13, and each group includes a swash plate 4, a stubble dial 1, a stubble shaft 3, a second bearing 20 and The inner and outer stubble wheel end caps 2, the stubble wheel 1, according to the theory of bionics, the optimal design of the claws, the star claw-shaped bionic stubble wheel formed by setting a plurality of spiral blades along the outer circumference of the disc, the stubble wheel 1 Installed on one end of the swash plate 4, the middle part of the swash plate 4 is installed on the main shaft 13 through the sleeve 17, and is clearance-fitted with the main shaft 12 to rotate around the main shaft 13, and the other end of the swash plate 4 is connected to the sleeve plate 5 through an adjustment device.

As shown in Figure 4, the installation deflection angle θ between the stubble picking wheel 1 and the sawtooth cutter is 30°～35°, and 30° is selected in this example. The horizontal distance between the disc cutters is 3 to 5 cm, and 3 cm is selected in this example. To ensure neither interference nor leakage to stubble, stalks and weeds. The helical blade of the stubble picking wheel 1 is edged on one side, which can ensure uniform stress during work, and the edge angle is 20°. When working, the star-shaped bionic stubble picking wheel 1 rotates under the tractor tractor, scratches the straw, stubble and weeds through the star-shaped claws, and moves the straw, stubble and weeds to the side under the action of centrifugal force. Throw it out from the rear and push it into the furrows on both sides to form a clean seed bed on the ridge, increase the passability of the machine tools, reduce the occurrence of blockage, and create a good seed bed and soil for the precision sowing of the no-tillage corn ridge planter. environmental conditions.

As shown in Fig. 6 and Fig. 7, the sloping plate 4 is a double-bending plate, which is used to connect the cutting device and the stubble removing and blocking preventing device. The two ends are deflected along the horizontal and vertical directions respectively, and the deflected ends in the horizontal direction are bent so that the two inclined plates 4 are installed on the main shaft 13 to form an outer "eight"-shaped structure, and the horizontal deflection angle θ is 30°-35° ° (same as the installation deflection angle between the stubble picking wheel 1 and the broken disc sawtooth knife, which is θ), this example selects 30 °, and the vertical deflection end connects the cover plate 5 by the adjusting device. The swash plate 4 plays the role of a bridge in the work of the stubble wheel 1, and the first connection hole 22 on the deflection end in the vertical direction is connected with the hole of the pull rod 7 by the pin 12 correspondingly, and the pull rod 7 is connected with the swash plate 4. The flexible connection can effectively transfer the floating of the stubble wheel 1 to the pull rod 7; the second connection hole 23 is installed on the sleeve 16 of the sleeve main shaft 12, and adopts clearance fit to ensure that the swash plate 4 can rotate freely on the sleeve 16 At the same time, there is basically no shaking, so as to achieve the effect of stable operation; the third connection hole 24 on the deflection end in the horizontal direction is used for installing the stubble picking wheel 1 .

As shown in Figure 1, the adjustment device includes a spring 6, a pull rod 7 and a nut 21. The pull rod 7 passes through the pull rod sleeve 8 on the cover plate 5, and one end is rotationally connected with the swash plate 4 through a pin shaft 12, and the other end is sleeved. A nut 21 is installed at the end of the spring 6 , and the pre-tightening force of the spring 6 is adjusted through the nut 21 . Adjust the height of the stubble wheel 1 in real time according to the actual ground conditions. When the anti-blocking device encounters an obstacle, the anti-blocking device is adjusted by the spring 6 and lifted up. After crossing the obstacle, the device returns to its original position under the action of its own gravity. The anti-blocking device can be adjusted according to the ground conditions through the above adjustments. shape.

As shown in FIG. 1 , the sleeve plate 5 is a connecting part connecting the top cover 9 and the main shaft 13 , and the tie rod sleeve 8 on it is connected with the swash plate 4 through the tie rod 7 . The height is designed according to the installation on the corn ridge no-tillage planter, and the width is designed according to the length of the tie rod 7.

As shown in FIGS. 8 and 9 , the top cover 9 is welded by a horizontal plate 27 and two vertical plates 26 . The length and width of horizontal plate 27 are designed according to the no-tillage planter for corn ridge cultivation. On the horizontal plate 27, there are installation holes connected with the test stand or the seeder respectively, and on the vertical plate 26, there are adjustment holes 25 for connecting the cover plate 5, adjusting the height position of the present invention during work, so as to adapt to the field. working conditions.

Embodiment 2: The difference between this embodiment and Embodiment 1 is that the two cutting disc serrated knives used in this example are disc knives with 7-tooth and 8-tooth helical blades respectively, and the installation distance D is 1mm. The edge angles of the two sides of the disc cutter with two notches are 25°. The diameter φ of the broken disc spiral blade is 460mm, and the installation angle θ between the described stubble picking wheel 1 and the broken cutting disc knife is 35°. During work, the described stubble picking wheel 1 and the broken cutting disc knife The horizontal distance between them is 5cm. The edge angle of the helical blade both sides of the stubble picking wheel 1 is 25 °.

Embodiment 3: The difference between this example and Embodiment 1 is that the two cutting disc cutters described in this example respectively adopt disc cutters with 10 teeth and 13 teeth Archimedes spiral blades, and the installation distance D is 2mm . The edge angles of the two sides of the disc cutter with two notches are 22°. The diameter φ of the helical blade of the broken disc knife is 430mm, and the installation angle θ between the described stubble picking wheel 1 and the broken cutting disc knife is 33°. During work, the stubble picking wheel 1 and the broken cutting disc The horizontal spacing between the knives is 4cm. The edge angle of the helical blade both sides of the stubble picking wheel 1 is 23 °.

Embodiment 4: The difference between this example and Embodiment 1 is that the two broken disc cutters described in this example respectively adopt disc cutters with 9 teeth and prime number 13-tooth Archimedes spiral blades, and the installation distance D is 1.8mm. The edge angles of the two sides of the two-notch disc serrated knife are 21°. The diameter φ of the helical blade of the broken disc knife is 440mm, and the installation angle θ between the described stubble picking wheel 1 and the broken cutting disc knife is 32°. During work, the stubble picking wheel 1 and the broken cutting disc The horizontal distance between the knives is 3cm. The edge angle of the helical blade both sides of the stubble picking wheel 1 is 22 °.

Embodiment 5: The difference between this example and Embodiment 1 is that the two broken disc cutters described in this example respectively adopt 8-tooth and 12-tooth Archimedes spiral blade serrated disc cutters, and the installation distance D is 1.7mm. The edge angles of the two sides of the two-notch disc serrated knife are 20°. The diameter φ of the helical blade of the broken disc knife is 450 mm, and the installation angle θ between the stubble picking wheel 1 and the two broken saw toothed disc knives is 31°. The horizontal distance between the disc knives is 4.5cm. The edge angle of the helical blade both sides of the stubble picking wheel 1 is 24 °.

Working process of the present invention:

When the present invention is in operation, after the overall installation, the top cover 9 is installed on the frame of the no-tillage seeder for corn ridge cultivation, so that the first and second breaking and cutting disc knives 10, 11 are in the middle of the ridge, and the stubble wheel 1 is in the middle of the ridge. Each side occupies 1/3 of the ridge. The main shaft 12 is driven under tractor traction, and the first and second cutting disc cutters 10 and 11 on it are pushed by the soil resistance to realize asynchronous rotation, alternately enter the soil, cut the stubble into the five-pronged strands, and cut the straw and Weed cutting; the two-star claw-shaped bionic stubble picking wheel 1 that rotates at the same time throws straw, stubble and weeds sideways and rearwards under the action of centrifugal force, and pushes them into the furrows on both sides to form a clean seed bed on the furrows , increase the passability of the machine, reduce the occurrence of clogging, and create a good soil environment condition for the precision sowing of the corn ridge no-tillage planter. When an obstacle is encountered, the spring 6 and the pull rod 7 in the adjustment device of the present invention work together to drive the two star claw-shaped bionic stubble picking wheels 1 to lift upwards, and the device returns to its original position under the action of its own gravity after the obstacle is crossed. The invention can adjust the height according to the ground conditions through the adjusting device, so as to adapt to the ground for profiling, avoiding missed cutting and blocked cutting images when cutting the root stubble, and at the same time, the two notched circular serrated knives can alternately enter the soil to reduce corn ridge cultivation and no-tillage The working resistance of the seeder increases the number of cuts and improves the stubble breaking efficiency.

Claims (10)

1. A corn ridge cropping no-tillage planter cutting and dialing anti-blocking device is characterized in that: it comprises a main shaft, a connecting sleeve plate, an inclined plate, a breaking device and a stubble picking and anti-blocking device, and the described cutting device is installed in the middle of the main shaft, There are two sets of stubble and anti-blocking devices, which are symmetrical to the cutting and breaking devices and connected to both ends of the main shaft. The stubble wheel is installed on both sides of the end of the cutting device in the shape of an "eight" opening outward, and the stubble wheel can simultaneously move the stubble backwards and push the stubble sideways; the connecting sleeve is symmetrically connected to the main shaft to break the stubble Between the device and the stubble removal and anti-blocking device, and respectively connected with the stubble removal and anti-blocking device, when working, the two connecting sleeves are respectively connected with the corn ridge no-tillage planter frame. 2. The cutting and anti-blocking device of the no-tillage seeder for corn ridge cultivation as claimed in claim 1, characterized in that: the breaking and cutting device includes two cutting and cutting disc knives symmetrically installed on the main shaft, the first bearing and the bearing end Cover, the two cutting disc cutters are installed on the main shaft through the first bearing and the bearing end cover, the installation distance D of the two cutting disc cutter heads is 1 ~ 2mm, and the outer circumference of the cutting disc cutter is Spiral blade. 3. The cutting and anti-blocking device for no-tillage seeder for corn ridge cultivation as claimed in claim 2, characterized in that: the first bearing is a deep groove ball bearing with sealing rings at both ends, and the outer sides of the two cutting disc cutter heads are It is fixed with the bearing end cover, and the outer end of the bearing end cover is connected with the main shaft through a sealing ring; the first bearing is axially fixed through the inner shaft shoulder, and the outer side is fixed through a circlip. 4. The cutting and anti-blocking device for no-tillage seeder for corn ridge cultivation as claimed in claim 2, characterized in that: the helical blades of the two cutting disc knives are respectively 7 to 13 with any two different blade teeth numbers, asynchronous Rotate and alternately enter the soil. 5. The anti-blocking device for corn ridge cultivation no-tillage seeder as claimed in claim 2 or 4, characterized in that: the tooth shape of the spiral blade is an Archimedes spiral arc, and the formed cutting disc knife For notched disc cutters. 6. The cutting and anti-blocking device for corn ridge cultivation and no-tillage planter as claimed in claim 5, characterized in that: the two cutting disk knives are respectively 9 teeth and the prime number is 11 teeth Archimedes spiral arc The notched disc knife has serrations on the arc of the blade, the diameter φ of the cutting disc spiral blade is 420-460mm, and the two disc knives are edged on both sides, and the edge angle is 20°-25°. 7. The cutting and anti-blocking device for corn ridge-cultivation and no-tillage seeder according to claim 1, characterized in that: said stubble-setting and anti-blocking device is divided into two groups, which are symmetrically connected to both ends of the main shaft, and each group includes a swash plate , the stubble wheel, the stubble shaft, the second bearing and the inner and outer stubble wheel end covers, the stubble wheel is a star-claw-shaped bionic wheel formed by arranging a plurality of spiral blades along the outer periphery of its disk, and the stubble wheel is installed At one end of the sloping plate, the middle part of the sloping plate is installed on the main shaft through a sleeve and rotates around the main shaft, and the other end of the sloping plate is connected to the sleeve plate through an adjustment device. 8. The cutting and anti-blocking device for corn ridge cultivation and no-tillage seeder according to claim 1 or 7, characterized in that: the installation deflection angle θ between the stubble picking wheel and the cutting disc knife is 30° to 35° , the horizontal spacing is 3-5cm. 9. The cutting and anti-blocking device for corn ridge and no-tillage seeder as claimed in claim 7, characterized in that: the inclined plate is a double-bending plate, and the two ends are respectively deflected along the horizontal and vertical directions, and the horizontal direction The deflection end is bent so that the two inclined plates are installed on the main shaft to form an outer "eight" shape structure. The horizontal deflection angle θ is 30°~35°, and the vertical deflection end is connected to the sleeve plate through the adjustment device. 10. The cutting and anti-blocking device of the corn ridge no-tillage seeder according to claim 7 or 9, characterized in that: the adjusting device includes a spring, a pull rod and a nut, and the pull rod passes through the pull rod cover on the cover plate, One end is rotatably connected to the inclined plate, the other end is fitted with a spring, and the end is fitted with a nut, through which the pre-tightening force of the spring can be adjusted, and the height of the stubble wheel can be adjusted in real time according to the actual ground conditions.