Small suspension type branch crusher

Abstract

The utility model belongs to the technical field of crushers, and particularly relates to a small suspension type branch crusher which comprises a mounting table, and a supporting mechanism, a crushing mechanism and a conveying mechanism are respectively arranged above the mounting table; the supporting mechanism realizes the actions of supporting and moving the device by the supporting wheels; the crushing mechanism realizes the action of crushing branches in the cutting box; the conveying mechanism achieves the action that the conveying box conveys branches. According to the small suspension type branch pulverizer, by arranging the supporting mechanism, the pulverizing mechanism and the conveying mechanism, lifting is directly carried out through three-point suspension of a tractor, and traction movement and suspension transfer can be achieved; the fixed cutting roller is connected with a rear power output shaft of a tractor, the tractor is a transportation tool of the pulverizer and also serves as a power source, and the technical problems that an existing traction type branch pulverizer is only suitable for areas with flat terrain, is inconvenient to move in wastelands and areas with large topographic relief and is low in use efficiency are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pulverizer technical field especially, it relates to a small -size suspension type branch pulverizer. BACKGROUND

[0002] The suspension type branch pulverizer (announcement number: CN212381723U) on the Chinese patent website discloses, although the bottom surface of the traditional branch pulverizer chain plate and the upper surface of the feeding plate are relatively smooth, so the friction is small, so some fine branches will slide along the feeding plate and take the knife holder rotation gap, and because it is only transportation, so the branches may still be relatively disorderly, thereby the technical problem of wearing the knife on the knife holder is solved, but the following problems still exist:

[0003] In the actual use, small -size traction type branch pulverizer is often used, and the operation is carried out in the relatively narrow space in the forest, but the traction type branch pulverizer is only suitable for flat terrain, and it is inconvenient to move in the wasteland and the area with large terrain fluctuation, and the use efficiency is low, thereby being inconvenient to use. UTILITY MODEL CONTENT

[0004] Based on the technical problem that the existing traction type branch pulverizer is only suitable for flat terrain, and it is inconvenient to move in the wasteland and the area with large terrain fluctuation, and the use efficiency is low, the utility model provides a small -size suspension type branch pulverizer.

[0005] The utility model provides a small -size suspension type branch pulverizer, including the installation platform, the upper of installation platform is provided with support mechanism, pulverization mechanism and conveying mechanism respectively,

[0006] The support mechanism is located below the pulverization mechanism and the conveying mechanism,

[0007] The support mechanism includes a support wheel, and the support mechanism realizes the action of supporting and moving the support wheel,

[0008] The pulverization mechanism includes a cutting box, and the pulverization mechanism realizes the action of pulverizing branches in the cutting box,

[0009] The conveying mechanism includes a conveying box, and the conveying mechanism realizes the action of conveying branches in the conveying box.

[0010] Preferably, the support mechanism further includes a rear wheel shaft, the surface of the rear wheel shaft is rotatably connected with the surface of the installation platform, the two ends of the rear wheel shaft are fixedly connected with the surfaces of two support wheels respectively, and the surface of the installation platform is fixedly connected with an upper pull rod, a lower pull rod, a connecting block and a tension spring respectively.

[0011] Preferably, the surface of the upper pull rod and the lower pull rod is respectively provided with an upper connecting hole and a lower connecting hole, the two lower pull rods are symmetrically distributed with the axis of the mounting table as the center, the surface of the upper pull rod is fixedly connected with a reinforcing plate, the surface of the reinforcing plate is respectively fixedly connected with the surface of the two lower pull rods, the surface of the connecting block is rotatably connected with a supporting column, and the surface of the supporting column is fixedly connected with one end of the tension spring.

[0012] Preferably, the surface of the fixed cutting roller and the surface of the movable cutting roller are respectively fixedly connected with a fixed shaft and a movable shaft, the surface of the fixed shaft and the surface of the movable shaft are rotatably connected with the surface of the cutting box, the surface of the cutting box is fixedly connected with the surface of the mounting table, the surface of the movable shaft is rotatably connected with a movable sliding block, the surface of the movable sliding block is slidably connected with the surface of the cutting box, the surface of the movable sliding block is fixedly connected with a movable spring, one end of the movable spring is fixedly connected with the top of the cutting box, and the two movable sliding blocks are symmetrically distributed with the axis of the movable shaft as the center.

[0013] Preferably, the surface of the fixed shaft and the surface of the movable shaft are respectively fixedly connected with a first chain wheel and a second chain wheel, the surface of the first chain wheel is provided with a chain, the surface of the chain is meshingly connected with the surface of the first chain wheel and the surface of the second chain wheel, the surface of the cutting box is slidably connected with a tensioning sliding block, the surface of the tensioning sliding block is fixedly connected with a tensioning spring, one end of the tensioning spring is fixedly connected with the inner wall of the cutting box, the surface of the tensioning sliding block is rotatably connected with a tensioning wheel, and the surface of the tensioning wheel is meshingly connected with the surface of the chain.

[0014] Preferably, the conveying mechanism further comprises a driving roller and a driven roller, the surface of the driving roller is provided with a conveying belt, the surface of the conveying belt is slidably connected with the surface of the driving roller and the surface of the driven roller, the surface of the driving roller and the surface of the driven roller are respectively fixedly connected with a driving shaft and a driven shaft, the surface of the driving shaft and the surface of the driven shaft are rotatably connected with the surface of the conveying box, the surface of the conveying box is fixedly connected with the surface of the mounting table, the surface of the conveying box is fixedly connected with a guide plate, and the two guide plates are symmetrically distributed with the axis of the conveying box as the center.

[0015] Preferably, the surface of the driving shaft is fixedly connected with a first pulley, the surface of the first pulley is provided with a first transmission belt, the surface of the fixed shaft is fixedly connected with a second pulley and a driving pulley respectively, the surface of the first transmission belt is meshedly connected with the surface of the first pulley and the surface of the second pulley respectively, the driving pulley is in transmission connection with a transmission pulley on the surface of the rear power output shaft through a transmission belt, the surface of the cutting box is provided with an air inlet and an air outlet respectively, the surface of the air inlet and the air outlet is fixedly connected with a lower sieve plate and an upper sieve plate respectively, the surface of the cutting box is fixedly connected with a discharge pipe and a fan respectively, and the inner wall of the discharge pipe and the inner wall of the fan are fixedly communicated with the inner wall of the cutting box.

[0016] The small-sized suspended branch pulverizer has the advantages that the support mechanism, the pulverizing mechanism and the conveying mechanism are arranged, the small-sized suspended branch pulverizer can be directly lifted by the three-point suspension of the tractor without changing the size, the function of traction and movement can be reserved and the small-sized suspended branch pulverizer can be suspended and transferred, the passing capacity of the pulverizer in the forest land is effectively improved, the small-sized suspended branch pulverizer is connected with the rear power output shaft of the tractor, the rear power of the tractor is used to drive the pulverizer, the tractor is both a transport tool and a power source, the forest pulverizing operation can be more conveniently performed, and the technical problems that the existing traction type branch pulverizer is only suitable for the flat terrain, is inconvenient to move in the wasteland and the region with large terrain fluctuation and has low use efficiency are solved.

[0017] The small-sized suspended branch pulverizer has the advantages that the support mechanism, the pulverizing mechanism and the conveying mechanism are arranged, the small-sized suspended branch pulverizer can be directly lifted by the three-point suspension of the tractor without changing the size, the function of traction and movement can be reserved and the small-sized suspended branch pulverizer can be suspended and transferred, the passing capacity of the pulverizer in the forest land is effectively improved, the small-sized suspended branch pulverizer is connected with the rear power output shaft of the tractor, the rear power of the tractor is used to drive the pulverizer, the tractor is both a transport tool and a power source, the forest pulverizing operation can be more conveniently performed, and the technical problems that the existing traction type branch pulverizer is only suitable for the flat terrain, is inconvenient to move in the wasteland and the region with large terrain fluctuation and has low use efficiency are solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A schematic view of the small-sized suspended branch pulverizer is shown in the utility model;

[0019] Figure 2 A perspective view of the mounting table structure of the small-sized suspended branch pulverizer is shown in the utility model;

[0020] Figure 3 A front view of the support column structure of the small-sized suspended branch pulverizer is shown in the utility model;

[0021] Figure 4 A perspective view of the chain structure of the small-sized suspended branch pulverizer is shown in the utility model;

[0022] Figure 5 A perspective view of the moving sliding block structure of the small-sized suspended branch pulverizer is shown in the utility model;

[0023] Figure 6 A perspective view of the first transmission belt structure of the small-sized suspended branch pulverizer is shown in the utility model;

[0024] Figure 7The utility model provides a kind of initiative roller structure perspective drawing of small-sized suspension type branch grinder.

[0025] In the figure: 1, installation platform;2, support wheel;3, cutting box;4, conveying box;201, rear axle;202, upper pull rod;203, lower pull rod;204, connecting block;205, tension spring;206, upper connecting hole;207, lower connecting hole;208, reinforcing plate;209, support column;301, fixed cutting roller;302, moving cutting roller;303, fixed shaft;304, moving shaft;305, moving slider;306, moving spring;307, first sprocket;308, second sprocket;309, chain;310, tensioning slider;311, tensioning spring;312, tensioning wheel;401, driving roller;402, driven roller;403, conveying belt;404, driving shaft;405, driven shaft;406, guide plate;407, first pulley;408, first transmission belt;409, second pulley;410, driving pulley;411, lower sieve plate;412, upper sieve plate;413, discharge pipe;414, fan. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0027] Reference Figures 1-7 A small-sized suspension type branch grinder, comprising an installation platform 1, the upper portion of the installation platform 1 is respectively provided with a supporting mechanism, a crushing mechanism and a conveying mechanism;

[0028] The supporting mechanism is located below the crushing mechanism and the conveying mechanism.

[0029] The supporting mechanism comprises a support wheel 2, and the supporting mechanism realizes the action of supporting and moving the support wheel 2.

[0030] The crushing mechanism comprises a cutting box 3, and the crushing mechanism realizes the action of crushing branches in the cutting box 3.

[0031] The conveying mechanism comprises a conveying box 4, and the conveying mechanism realizes the action of conveying branches by the conveying box 4.

[0032] The supporting mechanism further comprises a rear axle 201, the surface of the rear axle 201 is rotationally connected with the surface of the installation platform 1, the two ends of the rear axle 201 are respectively fixedly connected with the surfaces of the two support wheels 2, and the surface of the installation platform 1 is respectively fixedly connected with an upper pull rod 202, a lower pull rod 203, a connecting block 204 and a tension spring 205.

[0033] Further, the support wheel 2 is rotatably connected with the surface of the mounting table 1 through the rear wheel shaft 201, and supports and drives the mounting table 1 to move.

[0034] The surface of the upper pull rod 202 and the surface of the lower pull rod 203 are respectively provided with an upper connecting hole 206 and a lower connecting hole 207, and the two lower pull rods 203 are symmetrically distributed with the axis of the mounting table 1 as the center. The surface of the upper pull rod 202 is fixedly connected with a reinforcing plate 208, the surface of the reinforcing plate 208 is fixedly connected with the surface of the two lower pull rods 203, the surface of the connecting block 204 is rotatably connected with a support column 209, and the surface of the support column 209 is fixedly connected with one end of the tension spring 205.

[0035] Further, the support column 209 supports the mounting table 1, and the tractor is directly lifted by three-point suspension connection with the surface of the mounting table 1 through the upper pull rod 202 and the lower pull rod 203.

[0036] The crushing mechanism further comprises a fixed cutting roller 301 and a movable cutting roller 302, the fixed cutting roller 301 is located below the movable cutting roller 302, the surface of the fixed cutting roller 301 and the surface of the movable cutting roller 302 are respectively fixedly connected with a fixed shaft 303 and a movable shaft 304, the surface of the fixed shaft 303 and the surface of the movable shaft 304 are rotatably connected with the surface of the cutting box 3, the surface of the cutting box 3 is fixedly connected with the surface of the mounting table 1, the surface of the movable shaft 304 is rotatably connected with a movable sliding block 305, the surface of the movable sliding block 305 is slidably connected with the surface of the cutting box 3, the surface of the movable sliding block 305 is fixedly connected with a movable spring 306, one end of the movable spring 306 is fixedly connected with the top of the cutting box 3, and the two movable sliding blocks 305 are symmetrically distributed with the axis of the movable shaft 304 as the center.

[0037] Further, according to the size of the feed, the movable sliding blocks 305 on both sides drive the movable cutting roller 302 to move up and down, so that the branches enter the cutting box 3.

[0038] The surface of the fixed shaft 303 and the surface of the movable shaft 304 are respectively fixedly connected with a first sprocket 307 and a second sprocket 308, the surface of the first sprocket 307 is provided with a chain 309, the surface of the chain 309 is meshingly connected with the surface of the first sprocket 307 and the surface of the second sprocket 308, the surface of the cutting box 3 is slidably connected with a tensioning sliding block 310, the surface of the tensioning sliding block 310 is fixedly connected with a tensioning spring 311, one end of the tensioning spring 311 is fixedly connected with the inner wall of the cutting box 3, the surface of the tensioning sliding block 310 is rotatably connected with a tensioning wheel 312, and the surface of the tensioning wheel 312 is meshingly connected with the surface of the chain 309.

[0039] Further, when the fixed shaft 303 moves up and down, the tensioning wheel 312 tightens the chain 309, and the transmission connection between the first sprocket 307 and the second sprocket 308 is stable.

[0040] The conveying mechanism further comprises a driving roller 401 and a driven roller 402, the surface of the driving roller 401 is provided with a conveying belt 403, the surface of the conveying belt 403 is respectively in sliding connection with the surface of the driving roller 401 and the surface of the driven roller 402, the surface of the driving roller 401 and the surface of the driven roller 402 are respectively fixedly connected with a driving shaft 404 and a driven shaft 405, the surface of the driving shaft 404 and the surface of the driven shaft 405 are both in rotary connection with the surface of the conveying box 4, the surface of the conveying box 4 is fixedly connected with the surface of the mounting table 1, the surface of the conveying box 4 is fixedly connected with two guide plates 406, and the two guide plates 406 are symmetrically distributed with the axis of the conveying box 4 as the center.

[0041] Further, the branches are placed above the conveying box 4, and the conveying belt 403 drives the branches to enter the cutting box 3 along the direction of the guide plate 406.

[0042] The surface of the driving shaft 404 is fixedly connected with a first pulley 407, the surface of the first pulley 407 is provided with a first transmission belt 408, the surface of the fixed shaft 303 is fixedly connected with a second pulley 409 and a driving pulley 410 respectively, the surface of the first transmission belt 408 is in meshing connection with the surface of the first pulley 407 and the surface of the second pulley 409 respectively, the driving pulley 410 is in transmission connection with the transmission pulley on the surface of the rear power output shaft through a transmission belt, the surface of the cutting box 3 is provided with an air inlet and an air outlet respectively, the surface of the air inlet and the surface of the air outlet are fixedly connected with a lower sieve plate 411 and an upper sieve plate 412 respectively, the surface of the cutting box 3 is fixedly connected with a discharge pipe 413 and a fan 414 respectively, and the inner wall of the discharge pipe 413 and the inner wall of the fan 414 are both fixedly communicated with the inner wall of the cutting box 3.

[0043] Further, the fixed shaft 303 is in transmission connection with the second pulley 409 through the first pulley 407 and the second pulley 409 to drive the driving shaft 404 to rotate, the driving roller 401 rotates to drive the branches to enter the cutting box 3 through the conveying belt 403, and the qualified branches are sent out from the discharge pipe 413 by the fan 414 through the upper sieve plate 412.

[0044] By arranging the supporting mechanism, the crushing mechanism and the conveying mechanism, the size can be lifted and lifted directly by the three-point suspension of the tractor without changing the size, which can not only retain the function of traction and movement, but also can be suspended and transferred; the passing capacity of the crusher in the forest land is effectively improved, and the limitation of the terrain is overcome. The original power-driven crushing cavity is connected with the rear power output shaft of the tractor, and the rear power of the tractor is used to drive the crusher. After changing the power source of the crushing device, the tractor is not only a transport tool but also a power source, which can more conveniently carry out the crushing operation in the forest and solve the technical problems that the existing traction type branch crusher is only suitable for flat terrain, and is not convenient to operate and has low use efficiency in the wild and large terrain areas.

[0045] Working principle:

[0046] Before use, the upper pull rod 202 and the lower pull rod 203 on the surface of the installation table 1 are fixedly connected with the tractor, the surface of the installation table 1 is provided with a connecting block 204, the surface of the supporting column 209 is rotationally connected with the surface of the connecting block 204, the surface of the installation table 1 is elastically connected with the surface of the supporting column 209 through the tension spring 205, the surface of the installation table 1 is rotationally connected with the supporting wheel 2 through the rear wheel shaft 201, the supporting column 209 and the supporting wheel 2 jointly support the installation table 1, the rear power output shaft of the tractor is in transmission connection with the driving pulley 410 on the surface of the fixed shaft 303, drives the fixed shaft 303 to rotate, the second pulley 409 on the surface of the fixed shaft 303 is in transmission connection with the first pulley 407 on the surface of the driving shaft 404 through the first transmission belt 408, drives the driving shaft 404 to rotate, the driving roller 401 provided on the surface of the driving shaft 404 is in transmission connection with the transmission roller on the surface of the driven shaft 405 through the conveying belt 403, the branches are placed on the surface of the conveying box 4, the conveying belt 403 drives the branches to move into the cutting box 3 along the direction of the guide plate 406, the branches enter the cutting box 3, the fixed cutting roller 301 on the surface of the fixed shaft 303 and the movable cutting roller 302 on the surface of the moving shaft 304 cooperate to cut the branches, when the branches entering the cutting box 3 are more and have larger diameters, the movable cutting roller 302 is in sliding connection with the surface of the cutting box 3 through the moving sliding block 305 rotationally connected on the two sides of the moving shaft 304, drives the movable cutting roller 302 to move up and down, the surface of the moving sliding block 305 is elastically connected with the top of the cutting box 3 through the moving spring 306, adjusts the distance between the fixed cutting roller 301 and the movable cutting roller 302, the first sprocket 307 on the surface of the fixed shaft 303 is in transmission connection with the second sprocket 308 on the surface of the moving shaft 304 through the chain 309, drives the moving shaft 304 to synchronously rotate towards each other, the tensioning sliding block 310 on the surface of the cutting box 3 is in sliding connection with the surface of the cutting box 3, the tensioning wheel 312 rotationally connected on the surface of the tensioning sliding block 310 is in meshing connection with the surface of the chain 309, tensioning the first sprocket 307 and the second sprocket 308, the surface of the tensioning sliding block 310 is elastically connected with the inner wall of the cutting box 3 through the tensioning spring 311, when the moving sliding block drives the moving shaft 304 to move up and down, the tensioning sliding block 310 drives the tensioning wheel 312 to move horizontally, the tensioning sliding block 310 keeps the first sprocket 307 and the second sprocket 308 in stable transmission connection, the cut branches enter the rear part of the fixed cutting roller 301, the surface of the cutting box 3 is respectively provided with an air inlet and an air outlet, the surface of the air inlet and the air outlet is respectively provided with a lower sieve plate 411 and an upper sieve plate 412, the surface of the cutting box 3 is provided with a fan 414 and a discharge pipe 413, the fan 414 and the discharge pipe 413 are respectively fixedly communicated with the air inlet and the air outlet and the inner wall of the cutting box 3, the fan 414 drives the cut branches to be discharged from the discharge pipe 413 through the upper sieve plate 412, larger branches continue to be cut in the cutting box 3 and are discharged through the upper sieve plate 412.

[0047] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A small suspended branch shredder comprising a mounting table (1), characterized in that: The upper part of the mounting table (1) is respectively provided with a supporting mechanism, a crushing mechanism and a conveying mechanism; The supporting mechanism is located below the crushing mechanism and the conveying mechanism; The supporting mechanism comprises a supporting wheel (2), and the supporting mechanism realizes the action of supporting and moving the supporting wheel (2); The crushing mechanism comprises a cutting box (3), and the crushing mechanism realizes the action of crushing branches inside the cutting box (3); The conveying mechanism comprises a conveying box (4), and the conveying mechanism realizes the action of conveying branches by the conveying box (4).

2. A small suspended branch shredder according to claim 1, characterized in that: The supporting mechanism further comprises a rear wheel shaft (201), the surface of the rear wheel shaft (201) is rotationally connected with the surface of the mounting table (1), the two ends of the rear wheel shaft (201) are fixedly connected with the surfaces of two supporting wheels (2), and the surface of the mounting table (1) is fixedly connected with an upper pull rod (202), a lower pull rod (203), a connecting block (204) and a tension spring (205) respectively.

3. A small suspended branch shredder according to claim 2, characterized in that: The surface of the upper pull rod (202) and the surface of the lower pull rod (203) are respectively provided with an upper connecting hole (206) and a lower connecting hole (207), the two lower pull rods (203) are symmetrically distributed with the axis of the mounting table (1) as the center, the surface of the upper pull rod (202) is fixedly connected with a reinforcing plate (208), the surface of the reinforcing plate (208) is fixedly connected with the surfaces of the two lower pull rods (203), the surface of the connecting block (204) is rotationally connected with a supporting column (209), and the surface of the supporting column (209) is fixedly connected with one end of the tension spring (205).

4. A small suspended branch shredder according to claim 1, characterized in that: The crushing mechanism further comprises a fixed cutting roller (301) and a movable cutting roller (302), the fixed cutting roller (301) is located below the movable cutting roller (302), the surface of the fixed cutting roller (301) and the surface of the movable cutting roller (302) are fixedly connected with a fixed shaft (303) and a movable shaft (304) respectively, the surface of the fixed shaft (303) and the surface of the movable shaft (304) are rotationally connected with the surface of the cutting box (3), the surface of the cutting box (3) is fixedly connected with the surface of the mounting table (1), the surface of the movable shaft (304) is rotationally connected with a movable sliding block (305), the surface of the movable sliding block (305) is slidingly connected with the surface of the cutting box (3), the surface of the movable sliding block (305) is fixedly connected with a movable spring (306), one end of the movable spring (306) is fixedly connected with the top of the cutting box (3), and the two movable sliding blocks (305) are symmetrically distributed with the axis of the movable shaft (304) as the center.

5. A small suspended branch shredder according to claim 4, characterized in that: The surface of the fixed shaft (303) and the surface of the moving shaft (304) are fixedly connected with a first sprocket (307) and a second sprocket (308) respectively, the surface of the first sprocket (307) is provided with a chain (309), the surface of the chain (309) is meshedly connected with the surface of the first sprocket (307) and the surface of the second sprocket (308) respectively, the surface of the cutting box (3) is slidably connected with a tensioning sliding block (310), the surface of the tensioning sliding block (310) is fixedly connected with a tensioning spring (311), one end of the tensioning spring (311) is fixedly connected with the inner wall of the cutting box (3), the surface of the tensioning sliding block (310) is rotatably connected with a tensioning wheel (312), the surface of the tensioning wheel (312) is meshedly connected with the surface of the chain (309).

6. A small suspended branch shredder according to claim 5, characterized in that: The conveying mechanism further comprises a driving roller (401) and a driven roller (402), the surface of the driving roller (401) is provided with a conveying belt (403), the surface of the conveying belt (403) is slidably connected with the surface of the driving roller (401) and the surface of the driven roller (402) respectively, the surface of the driving roller (401) and the surface of the driven roller (402) are fixedly connected with a driving shaft (404) and a driven shaft (405) respectively, the surface of the driving shaft (404) and the surface of the driven shaft (405) are rotatably connected with the surface of the conveying box (4), the surface of the conveying box (4) is fixedly connected with the surface of the mounting table (1), the surface of the conveying box (4) is fixedly connected with a guide plate (406), the two guide plates (406) are symmetrically distributed with the axis of the conveying box (4) as the center.

7. A small suspended branch shredder according to claim 6, characterized in that: The surface of the driving shaft (404) is fixedly connected with a first pulley (407), the surface of the first pulley (407) is provided with a first transmission belt (408), the surface of the fixed shaft (303) is fixedly connected with a second pulley (409) and a driving pulley (410) respectively, the surface of the first transmission belt (408) is meshedly connected with the surface of the first pulley (407) and the surface of the second pulley (409) respectively, the driving pulley (410) is drivingly connected with the transmission pulley on the surface of the rear power output shaft through a transmission belt, the surface of the cutting box (3) is provided with an air inlet and an air outlet respectively, the surface of the air inlet and the surface of the air outlet are fixedly connected with a lower sieve plate (411) and an upper sieve plate (412) respectively, the surface of the cutting box (3) is fixedly connected with a discharge pipe (413) and a fan (414) respectively, the inner wall of the discharge pipe (413) and the inner wall of the fan (414) are fixedly communicated with the inner wall of the cutting box (3).

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