CN109530037B

CN109530037B - Double-shaft shredder

Info

Publication number: CN109530037B
Application number: CN201811392153.XA
Authority: CN
Inventors: 焦启飞; 何东; 赵吕敬; 曹春华; 韩兵; 罗刚
Original assignee: Chongqing Gearbox Co Ltd
Current assignee: Chongqing Gearbox Co Ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2024-08-13
Anticipated expiration: 2038-11-21
Also published as: CN109530037A

Abstract

The invention discloses a double-shaft shredder, which comprises a hydraulic motor (1), a cutter shaft (7) connected with the hydraulic motor (1) through a locking disc (2), a support seat connected with the hydraulic motor (1) through a torsion supporting device (5), and a box body for mounting the support seat, wherein the box body is divided into an upper box body (3) and a lower box body (4) detachably connected with the upper box body (3), a crushing cavity in the box body is provided with two cutter shafts (7) which are arranged in parallel, the cutter shafts (7) are mounted on the lower box body (4) through a front bearing seat (6) and a rear bearing seat (9), a plurality of cutter heads (701) which are arranged at intervals are fixed on the cutter shafts (7), fixed cutters (8) which are matched with the cutter shafts (7) are mounted in the box body, and the fixed cutters (8) and the cutter shafts (7) are detachably connected with the box body. The double-shaft shredder is compact in structure, small in installation space and modular in design, and is convenient to replace and maintain.

Description

Double-shaft shredder

Technical Field

The invention relates to the technical field of shredders, in particular to a double-shaft shredder.

Background

At present, the treatment methods of household garbage mainly comprise landfill, incineration and the like, and the landfill and the incineration are required to be crushed and volume-reduced. The double-shaft shredder is one of important equipment used in the field of garbage crushing, and is mainly used for reducing and crushing large garbage, household garbage and other large-volume materials, and consists of a hydraulic motor, a speed reducer, a cutter shaft, a cutter box, a rack, a hopper and the like.

At present, the existing shredder mainly adopts a motor or a hydraulic motor to be connected with a speed reducer through a synchronous belt, and the speed reducer is connected with a cutter shaft through a coupler, so that the cutter shaft is driven to rotate, and the crushing function is realized. The shredder box adopts integral welding box, welds the stationary knife on the box, tears each other between movable knife and the stationary knife through the epaxial welded of arbor and cuts the effect and realize broken function, and the box can not separate, and the stationary knife can not be dismantled from the box, and the installation and the maintenance of axle are changed difficultly, use inconveniently.

In summary, how to effectively solve the problems of inconvenient use and the like of the existing shredder is a problem which needs to be solved by the technicians in the field at present.

Disclosure of Invention

The invention aims to provide a double-shaft shredder which is compact in structure, small in installation space and modular in design and convenient to replace and maintain.

In order to solve the technical problems, the invention provides the following technical scheme:

The utility model provides a biax shredder, includes hydraulic motor, with the arbor that hydraulic motor passes through the locking dish to be connected, through torsion strutting arrangement with the support that hydraulic motor is connected, and be used for installing the box of support, the box divide into the box and with the lower box that last box can dismantle the connection, the inside broken chamber of box has two parallel arrangement's arbor to install through front bearing frame and back bearing frame on the lower box, be fixed with a plurality of interval arrangement's blade disc on the arbor, install in the box with the stationary knife that the arbor cooperation was used, the stationary knife with the arbor all with the box is detachable the connection.

Preferably, a front partition plate and a rear partition plate are arranged in the box body, a set isolation interval is arranged between the front partition plate and the rear partition plate and between the front partition plate and the rear bearing seat respectively, and the crushing cavity is isolated from the front bearing seat and the rear bearing seat.

Preferably, the cutter shaft is fixedly sleeved with a protection plate at a position corresponding to the front end cutting edge of the fixed cutter.

Preferably, the cutter disc and the protection plate are welded on the cutter shaft, and the cutter disc and the protection plate are made of wear-resistant steel plates.

Preferably, the stationary knife comprises a middle knife body, side knife bodies on two sides, a plurality of rows of vertical plates penetrating through and connecting each row of the side knife bodies with the middle knife body, a supporting plate connecting the adjacent vertical plates, and a wall plate longitudinally connected to the lower part of the side knife body, wherein the ends of the middle knife body and the side knife bodies are provided with connecting parts, and the stationary knife is formed by integral welding.

Preferably, the upper end surface of the inner side of the lower box body is provided with a concave step surface, the connecting part of the fixed cutter is provided with a countersunk hole, the step surface is provided with a threaded hole, and the fixed cutter is connected with the lower box body at the step surface through a screw.

Preferably, a hexagonal bolt for propping up the vertical plate of the fixed cutter is arranged on the side wall of the lower box body, and the hexagonal nut is used for tightening and loosening prevention.

Preferably, the connecting end surfaces of the upper box body and the lower box body are respectively provided with a connecting flange, the connecting flange is provided with a through hole, and the upper box body and the lower box body are connected through bolt fastening and are provided with a joint pin for positioning.

Preferably, the two cutter shafts are respectively connected with one hydraulic motor, and each cutter shaft can rotate in two directions independently and positively.

Preferably, the torque force supporting device comprises a torque force arm with one end connected with the hydraulic motor and a connecting rod connected with the other end of the torque force arm through a pin shaft, and the other end of the connecting rod is connected with the support through a pin shaft.

The double-shaft shredder provided by the invention comprises a hydraulic motor, a locking disc, a cutter shaft, a torsion supporting device, a support, a box body, a front bearing seat, a rear bearing seat, a cutter head and a fixed cutter, wherein the hydraulic motor is connected to the support through the torsion supporting device, and the hydraulic motor is connected with the torsion supporting device in a bolt connection manner, so that the double-shaft shredder is convenient to disassemble and assemble and convenient to operate. The arbor passes through the locking dish to be connected with hydraulic motor, and the arbor passes through the output shaft of locking dish and hydraulic motor exactly and is connected fixedly with the diaxon through the internal holding screw of regulation locking dish, arbor and hydraulic motor direct connection installation can realize low rotational speed, big moment of torsion output, strengthens the crushing capacity of biax shredder, has reduced hydraulic motor's the installation degree of difficulty simultaneously.

The box is divided into two parts, namely an upper box and a lower box, wherein the lower box is detachably connected with the upper box, and the upper box and the lower box are connected in a bolt fastening manner and positioned by a joint pin, so that the box is convenient to detach and accurate to position. The support is installed in the box, is provided with the connection interface of mount pad on the lower box, is located one side of front bearing frame, and the support passes through bolt-up connection's mode with the lower box to be connected, easy dismounting, convenient operation.

The crushing cavities in the box body are provided with two or more cutter shafts, for example, four cutter shafts are arranged in parallel in the crushing cavities in the box body and are uniformly arranged, the stress condition is good, the cutter shafts are arranged on the lower box body through the front bearing seat and the rear bearing seat, and the cutter shafts are fastened and connected by bolts, so that the cutter shafts are convenient to assemble and disassemble and convenient to adjust. The cutter heads are fixed on the cutter shafts, the cutter heads are multiple in number and fixed on the cutter shafts in a spaced arrangement state, and the cutter heads and the cutter shafts can be fixed in a firm and reliable manner through welding. The fixed cutter is arranged in the box body and matched with the cutter shaft for use, the fixed cutter is arranged in a mode of being fastened and connected through bolts, the disassembly and the assembly are convenient, the operation is facilitated, the fixed cutter comprises a middle cutter body and a side cutter body, a plurality of blades are arranged on the cutter body at intervals with the cutter disc, the fixed cutter is meshed with the cutter disc on the cutter shaft in a staggered mode, the fixed cutter is in a static and fixed state, the cutter disc rotates together with the cutter shaft under the driving of a hydraulic motor, and the material is crushed under the cooperation of the cutter disc and the fixed cutter. The fixed knife and the knife shaft are detachably connected with the box body in a bolt fastening connection mode, so that the fixed knife and the knife shaft are convenient to assemble and disassemble, maintenance and replacement are facilitated, the overall service life of the double-shaft shredder is prolonged, and cost is reduced.

According to the double-shaft shredder provided by the invention, the hydraulic motor is directly arranged on the cutter shaft of the shredder through the locking disc, so that low-rotation-speed and high-torque output can be realized, the crushing capacity of the shredder is enhanced, the installation difficulty of the hydraulic motor is reduced, the cost of the whole machine is reduced, and the hydraulic motor has stronger shock resistance under the conditions of low-speed heavy load and frequent forward and reverse rotation; the fixed cutter and the cutter shaft of the double-shaft shredder are in a modularized design, and suitable cutters can be selected according to different materials and discharging requirements, so that the double-shaft shredder is convenient to replace and maintain in the later use process; the box body of the double-shaft shredder adopts an up-down split structure, so that the cutter shaft is convenient to install, maintain and replace; the double-shaft shredder has compact structure and small installation space, and the modularized design is convenient for replacement and maintenance.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a dual shaft shredder according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic view of a torsion support apparatus according to the present invention;

Fig. 5 is a schematic structural view of the stationary knife.

The figures are marked as follows:

The hydraulic motor, the 2-locking disc, the 3-upper box, the 4-lower box, the 401-front partition board, the 402-rear partition board, the 5-torsion supporting device, the 501-torsion arm, the 502-pin shaft, the 503-connecting rod, the 504-support, the 6-front bearing seat, the 7-cutter shaft, the 701-cutter disc, the 702-protection plate, the 8-fixed cutter, the 801-side cutter body, the 802-middle cutter body, the 803-vertical plate, the 804-supporting plate, the 805-connecting part, the 806-wall board, the 9-rear bearing seat, the 10-hexagon socket head cap screw, the 11-hexagon head bolt and the 12-hexagon nut.

Detailed Description

The core of the invention is to provide a double-shaft shredder which has a compact structure, a small installation space and a modularized design and is convenient to replace and maintain.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a dual-shaft shredder according to an embodiment of the present invention; FIG. 2 is a top view of FIG. 1; FIG. 3 is a left side view of FIG. 1; FIG. 4 is a schematic view of a torsion support apparatus according to the present invention; fig. 5 is a schematic structural view of the stationary knife.

In a specific embodiment, the double-shaft shredder provided by the invention comprises a hydraulic motor 1, a locking disc 2, a cutter shaft 7, a torsion supporting device 5, a support 504, a box body, a front bearing seat 6, a rear bearing seat 9, a cutter head 701 and a fixed cutter 8, wherein the hydraulic motor 1 is connected to the support 504 through the torsion supporting device 5, and the hydraulic motor 1 and the torsion supporting device 5 can be connected in a bolt manner, so that the double-shaft shredder is convenient to disassemble and assemble and convenient to operate. The cutter shaft 7 is connected with the hydraulic motor 1 through the locking disc 2, specifically the cutter shaft 7 is connected with the output shaft of the hydraulic motor 1 through the locking disc 2, the two shafts are fixedly connected through the set screw in the locking disc 2, the cutter shaft 7 is directly connected and installed with the hydraulic motor 1, low-rotation-speed and high-torque output can be achieved, the crushing capacity of the double-shaft shredder is enhanced, and meanwhile the installation difficulty of the hydraulic motor 1 is reduced.

The box divide into two parts, is respectively and goes up box 3 and lower box 4, and wherein lower box 4 is for dismantling the connection with last box 3, and the connected mode of going up box 3 and lower box 4 can be bolt-up connection to fix a position through the pin on the shoulder, it is convenient to dismantle, the location is accurate. The support 504 is installed in the box, is provided with the connection interface of mount support 504 on the lower box 4, is located one side of front bearing frame 6, and support 504 is connected through bolt-up connection's mode with lower box 4, easy dismounting, convenient operation.

The crushing cavity inside the box body is provided with two or more cutter shafts 7, for example, four cutter shafts 7 are arranged in parallel in the crushing cavity inside the box body and are uniformly arranged, the stress condition is good, the cutter shafts 7 are arranged on the lower box body 4 through the front bearing seat 6 and the rear bearing seat 9, and the cutter shafts 7 are fastened and connected by bolts, so that the cutter shafts are convenient to assemble and disassemble and convenient to adjust. The cutter heads 701 are fixed on the cutter shafts 7, the cutter heads 701 are multiple in number, the cutter heads 701 are fixed on the cutter shafts 7 and are in a spaced arrangement state, and the cutter heads 701 and the cutter shafts 7 can be fixed through welding, so that the cutter heads are firm and reliable. The stationary knife 8 is installed in the box body and matched with the cutter shaft 7 for use, the installation mode of the stationary knife 8 can be through bolt fastening connection, the disassembly and the assembly are convenient, the operation is facilitated, the stationary knife 8 comprises a middle knife body 802 and a side knife body 801, a plurality of blades are arranged on the knife body at intervals with the cutter disc 701, the stationary knife 8 is meshed with the cutter disc 701 on the cutter shaft 7 in a staggered mode, the stationary knife 8 is in a static fixed state, the cutter disc 701 rotates together with the cutter shaft 7 under the driving of the hydraulic motor 1, and the cutter disc 701 and the stationary knife 8 are matched for smashing materials. The fixed knife 8 and the knife shaft 7 are detachably connected with the box body in a bolt fastening connection mode, so that the fixed knife is convenient to assemble and disassemble, is beneficial to maintenance and replacement, prolongs the whole service life of the double-shaft shredder, and reduces the cost.

According to the double-shaft shredder provided by the invention, the hydraulic motor 1 is directly arranged on the cutter shaft 7 of the shredder through the locking disc 2, so that low-rotation-speed and high-torque output can be realized, the crushing capacity of the shredder is enhanced, the installation difficulty of the hydraulic motor 1 is reduced, the cost of the whole machine is reduced, and the hydraulic motor 1 has stronger shock resistance under the conditions of low-speed heavy load and frequent forward and reverse rotation; the fixed cutter 8 and the cutter shaft 7 of the double-shaft shredder are in a modularized design, and proper cutters can be selected according to different materials and discharging requirements, so that the double-shaft shredder is convenient to replace and maintain in the later use process; the box body of the double-shaft shredder adopts an up-down split structure, so that the cutter shaft 7 is convenient to install, maintain and replace; the double-shaft shredder has compact structure and small installation space, and the modularized design is convenient for replacement and maintenance.

The double-shaft shredder is only a preferable scheme, and particularly but not limited to the scheme, and can be adjusted in a targeted manner according to actual needs, so that different embodiments are obtained, a front baffle 401 and a rear baffle 402 are arranged in the box body, the front baffle 401 and the rear baffle 402 can be connected with the box body through bolts, the disassembly is convenient, the maintenance is convenient, the front baffle 401 is arranged at the rear of a front bearing seat 6 in the box body, an isolation interval is set between the front baffle 401 and the front bearing seat 6, and a crushing cavity is isolated from the front bearing seat 6; the back baffle 402 sets up in the box in front of the back bearing frame 9, sets for the interval between back baffle 402 and the back supporting seat, keeps apart broken chamber and back bearing frame 9, prevents debris such as material dust, liquid from getting into in the bearing frame, prevents pollution bearing service environment, improves bearing life.

On the basis of the specific embodiment, a person skilled in the art can change the double-shaft shredder according to different specific occasions, the cutter shaft 7 is fixedly sleeved with the protection plate 702 at the position corresponding to the front end cutting edge of the cutter 8, the cutter 8 comprises the front end cutting edge and two side cutting edges, the front end cutting edge is one side close to the cutter shaft 7, the protection plate 702 is mounted in a manner of being connected through welding, the double-shaft shredder is firm and reliable, the impact of materials on the cutter shaft 7 during crushing operation of the double-shaft shredder can be effectively resisted, the cutter shaft 7 is protected from being damaged, and the service life is prolonged.

Further optimize above-mentioned technical scheme, the person skilled in the art can carry out a plurality of changes to above-mentioned concrete implementation mode according to the difference of concrete occasion, and blade disc 701 and guard plate 702 weld on arbor 7, and the preparation is simple and convenient, and firm in connection is reliable, and this is a preferred embodiment only, but not the only, can also install on arbor 7 by adopting the mode of bolt-up connection, and it is convenient to dismantle, and under the impaired condition of single blade disc 701, the change of being convenient for is maintained, improves availability factor. The cutter head 701 and the protection plate 702 are made of wear-resistant steel plates, so that the wear resistance of the cutter shaft 7 is enhanced, and the service life is prolonged.

It should be noted that the dual-shaft shredder provided by the present invention should not be limited to this case, the stationary blade 8 includes a middle blade body 802, side blade bodies 801 on both sides, a vertical plate 803, a support plate 804, a wall plate 806, and a connecting portion 805, the multiple rows of vertical plates 803 connect each row of side blade bodies 801 and the middle blade body 802 through, the support plate 804 connects adjacent vertical plates 803, the wall plate 806 is connected to the lower portion of the side blade body 801 longitudinally, and the ends of the middle blade body 802 and the side blade body 801 have the connecting portion 805. The middle cutter body 802 and the side cutter body 801 have a plurality of blades spaced from the cutter head 701, for example, 7 blades, or 9 blades, and the specific number is set according to the requirement, and is not specifically limited. The fixed knife 8 is formed by integrally welding, the middle knife body 802, the side knife body 801, the vertical plate 803 and the supporting plate 804 are welded into a whole, and the connecting mode is firm and durable, convenient to install, firm and reliable, simple to manufacture and low in production cost.

According to the double-shaft shredder provided by the invention, under the condition that other parts are not changed, the upper end surface of the inner side of the lower box body 4 is provided with the concave step surface, the step surface can be machined in a machining mode, and the flatness is good. The connecting part 805 of the fixed knife 8 is provided with a countersunk hole, the size of the countersunk hole is matched according to the specification of the selected connecting piece, the step surface is provided with a threaded hole, the position of the threaded hole corresponds to the position of the countersunk hole on the fixed knife 8, the fixed knife 8 is connected with the step surface through a screw, the screw can be an inner hexagonal cylindrical head screw 10, the disassembly and the assembly operations are convenient, the countersunk hole is adopted to sink the end cap of the screw into the countersunk hole, the end cap of the screw is prevented from extending out of the upper end face of the fixed knife 8, the connection area of the upper box 3 and the lower box 4 is improved, and the product arrangement is compact.

For the double-shaft shredder in each embodiment, the side wall of the lower box body 4 is provided with the hexagon head bolt 11 for propping up the vertical plate 803 of the fixed cutter 8, the side wall of the lower box body 4 is provided with a threaded through hole, the hexagon head bolt 11 is screwed into the through hole, the screw of the hexagon head bolt 11 is propped up against the vertical plate 803 of the fixed cutter 8, uneven stress inside the fixed cutter 8 during crushing is prevented, and the hexagon nut 12 is used for tightening and loosening prevention, so that the structure is simple and the operation is convenient.

In order to further optimize above-mentioned technical scheme, go up the connection terminal surface of box 3 and lower box 4 and all have flange, flange is connected to on box 3 and the lower box 4 through welded mode, the roughness of terminal surface is guaranteed to the rethread machining, have the through-hole on the flange, go up box 3 and lower box 4 through bolt-up connection, easy dismounting, be convenient for maintain to install the pin location of riding on the seam, simple structure, the location is accurate, prevent that the bolt that biax shredder led to in the course of the work from becoming flexible, the security is better.

On the basis of the above-mentioned each embodiment, two arbor 7 are connected with a hydraulic motor 1 respectively, and every arbor 7 adopts independent drive, and through locking dish 2 with arbor 7 and hydraulic motor 1 direct connection, can realize low rotational speed, big moment of torsion output, strengthen the crushing capacity of biax shredder, reduced hydraulic motor 1's installation cost, reduced the complete machine cost. Each cutter shaft 7 can rotate in the forward and reverse directions independently, bidirectional asynchronous crushing can be realized, and the adaptability of crushing operation of the double-shaft shredder is improved.

The double-shaft shredder provided by the invention is not limited to the situation, under the condition that other parts are not changed, the torsion supporting device 5 comprises a torsion arm 501, a connecting rod 503, a pin shaft 502 and a support 504, one end of the torsion arm 501 is connected with the hydraulic motor 1 in a butt joint mode through a connecting flange and then is pinched and fixed through a bolt, the connecting rod 503 is connected with the other end of the torsion arm 501 through the pin shaft 502, the other end of the connecting rod 503 is connected with the support 504 through the pin shaft 502, and the support 504 is connected to the lower box 4 through the bolt, so that the dismounting is convenient, the maintenance is convenient, and long holes can be formed in the support 504, so that the axial adjustment is convenient when the hydraulic motor 1 is installed.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a double-shaft shredder, its characterized in that includes hydraulic motor (1), with arbor (7) that hydraulic motor (1) is connected through locking dish (2), through torsion strutting arrangement (5) with support (504) that hydraulic motor (1) is connected, and be used for installing the box of support (504), the box divide into last box (3) and with last box (3) detachable lower box (4) of being connected, the inside broken chamber of box has two arbor (7) of parallel arrangement to install through front bearing frame (6) and back bearing frame (9) on lower box (4), be fixed with a plurality of blade discs (701) of interval arrangement on arbor (7), install in the box with fixed knife (8) that arbor (7) cooperation was used, fixed knife (8) with arbor (7) all are detachable connection with the box, fixed knife (8) include intermediate body (802), side body (801), each side of being connected with side face (801) of side face (801) are connected in parallel to each of intermediate body (801), perpendicular side (803) are connected in parallel to vertical side (803) of adjacent board (803), the utility model provides a novel combined type milling cutter, including middle sword body (802) and tip of side sword body (801) has connecting portion (805), fixed sword (8) adopt integral type welding shaping, the inboard up end of lower box (4) has the step face of indent, connecting portion (805) of fixed sword (8) have the counter bore, the step face has the screw hole, fixed sword (8) with lower box (4) are in step face department passes through the screw connection, install on the lateral wall of lower box (4) be used for the top tightly hex head bolt (11) of riser (803) of fixed sword (8) to screw up locking with hexagon nut (12), box inside is provided with preceding baffle (401) and back baffle (402), preceding baffle (401) with back baffle (402) respectively with install between preceding bearing frame (6) and back bearing frame (9) and keep apart the interval of setting for broken chamber with preceding bearing frame (6) and back bearing frame (9) are installed.

2. The double-shaft shredder according to claim 1, wherein the cutter shaft (7) is fixedly sleeved with a protection plate (702) at a position corresponding to the front end cutting edge of the fixed cutter (8).

3. The dual shaft shredder of claim 2, wherein the cutterhead (701) and the guard plate (702) are welded to the arbor (7), the cutterhead (701) and the guard plate (702) being each made of a wear resistant steel plate.

4. The dual-shaft shredder according to claim 1, wherein the connecting end surfaces of the upper box body (3) and the lower box body (4) are provided with connecting flanges, the connecting flanges are provided with through holes, and the upper box body (3) and the lower box body (4) are connected through bolt fastening and are provided with a riding pin for positioning.

5. A dual-shaft shredder according to claim 1, wherein two cutter shafts (7) are respectively connected with one hydraulic motor (1), and each cutter shaft (7) can rotate in two directions independently.

6. The dual shaft shredder according to claim 1, wherein the torque support means (5) comprises a torque arm (501) connected at one end to the hydraulic motor (1), a link (503) connected to the other end of the torque arm (501) through a pin (502), the other end of the link (503) being connected to the support (504) through a pin (502).