CN219555692U - Crushing and stirring device for harmless treatment of crop straws - Google Patents

Abstract

The utility model discloses a crushing and stirring device for crop straw innocent treatment, which belongs to the technical field of crop straw treatment and comprises a stirring and discharging unit, a material collecting unit and a material crushing unit, wherein a motor II is arranged at the bottom end of an auxiliary stirring rod, a discharging part is arranged at the lower side of the motor II, the discharging part comprises a miniature motor, the miniature motor is arranged at the bottom of the motor II, a threaded rod is arranged at the shaft end of the miniature motor, a guide frame is sleeved on the outer side of the threaded rod in a threaded manner, the guide frame is arranged in a U-shaped structure, blocking plates are arranged at the two ends of the top of the guide frame, the blocking plates are positioned in a discharge opening, the material crushing unit is arranged at the upper side of the stirring and discharging unit, a large amount of crushed straws are directly discharged from a straight pipe after being stirred, and the straws are accumulated in the straight pipe to form caking, so that the crushed straws are blocked in the straight pipe when discharged, and the crushed straws have an anti-blocking function.

Description

Crushing and stirring device for harmless treatment of crop straws

Technical Field

The utility model relates to the technical field of crop straw treatment, in particular to a crushing and stirring device for crop straw harmless treatment.

Background

Crop straws are the general name of stem leaves (ears) of mature crops. Typically wheat, rice, corn, potato, canola, cotton, sugarcane and other crops (typically coarse grain) remain after harvesting the seed. More than half of the photosynthesis products of crops exist in the straw, and the straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, is a renewable biological resource with multiple purposes, and is also a coarse fodder. Is characterized in that the crude fiber content is high (30% -40%), and lignin and the like are contained. Although lignin cellulose is not available to pigs and chickens, it is absorbed and utilized by livestock such as ruminants, cattle and sheep.

The chinese patent with application number 202121202381.3 among the prior art discloses a straw smashing stirring device, its theory of operation is when needs smash the straw, throw into the agitator tank with it intercommunication with the straw in the pipe, the inside both sides wall of agitator tank is provided with the fixed blade, stirring subassembly sets up in the inside of agitator tank, stirring subassembly cooperatees with the fixed blade, grind creatinine, when the straw gets into the agitator tank inside, just start stirring subassembly's first motor, first motor just drives the dwang with its fixed connection and rotates, the both sides limit fixedly connected with cutting blade of dwang just rotates the inside of agitator tank, cutting blade and fixed blade are crisscross to be set up, can carry out better grinding with the straw, after finishing grinding, just pour into smashing the tank through the pipeline in, smash the crushing subassembly that sets up in the tank and just smash it again, grind it and carry out the fineness, after finishing grinding, just discharge through smashing the pipe department of tank below, let it smash more complete, thereby improve the crushing effect that the straw stirring device is difficult for causing the inside machine of jam.

In the prior art, the crushing efficiency of crop straws is improved in the crushing process, but the crop straws are discharged by adopting a single straight pipe in the discharging process, the discharge port is only at one position, a large amount of crushed straws are directly discharged from the straight pipe after being stirred, and the straws are accumulated in the straight pipe to form caking, so that the crushed straws are blocked in the straight pipe when discharged, and therefore, the crushing stirring device for harmless treatment of the crop straws is provided.

Disclosure of Invention

The utility model provides a crushing and stirring device for crop straw innocent treatment, which aims to solve the defects that straws are accumulated in a straight pipe to form caking in the prior art, so that crushed straws are blocked in the straight pipe when discharged, and the crop straw treatment solves the problems that the straws are accumulated in the straight pipe to form caking, so that the crushed straws are blocked in the straight pipe when discharged, a plurality of discharge ports are simultaneously opened, and the discharge efficiency is improved, so that the discharge blockage is avoided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the crushing and stirring device for harmless treatment of crop straws comprises a stirring and discharging unit, a material collecting unit and a material crushing unit, wherein the stirring and discharging unit comprises a stirring box, the lower surface of the stirring box is provided with a plurality of discharging ports, the central position of the inner bottom of the stirring box is provided with a stirring rod, the bottom end of the stirring rod is provided with a motor I, both ends of the inner bottom of the stirring box are respectively provided with an auxiliary stirring rod,

the bottom of the auxiliary stirring rod is provided with a motor II, the downside of the motor II is provided with a discharging part, the discharging part comprises a micro motor, the micro motor is arranged at the bottom of the motor II, the shaft end of the micro motor is provided with a threaded rod, the outer side of the threaded rod is in threaded sleeve connection with a guide frame, the guide frame is in a U-shaped structure, both ends of the top of the guide frame are provided with blocking plates, the blocking plates are positioned in a discharging hole,

the material collecting unit is arranged at the lower side of the stirring and discharging unit and comprises a collecting box, the collecting box is connected at the lower side of the stirring box in a buckling way, a baffle plate is arranged at the center position of the inner side of the collecting box, two movable boxes are inserted at the bottom of the inner side of the collecting box,

the material crushing unit is arranged on the upper side of the stirring and discharging unit.

Through above-mentioned technical scheme, put into the crop straw and smash in the material crushing unit, then the crushed straw falls into stirring row material unit in, the puddler, motor one, cooperation between auxiliary puddler and the motor two, stir the operation to the straw after smashing, last by miniature motor drive threaded rod, threaded rod screw drive leading truck, the leading truck removes and drives the barrier plate and break away from the bin outlet, thereby to the crushing material emission after the stirring, a plurality of bin outlets of agitator tank bottom are opened in the emission process, carry out the row material operation, thereby improve discharge efficiency, avoid the condition that takes place to block up in the discharge process, it provides a row material and prevents the function.

Preferably, the discharging part further comprises a connecting plate, the connecting plate is arranged on the upper side of the guide frame, a plurality of connecting blocks are arranged on the upper side of the connecting plate, a connecting shaft is connected to the inner side of the connecting plate in a rotating mode, the connecting shaft penetrates through one side of the connecting block, barrier strips are arranged at two ends of the inner side of the discharging opening, and pushing strips are arranged at the edge of the inner side of the collecting box.

Through above-mentioned technical scheme, during the row material, micro motor drive threaded rod, threaded rod screw drive leading truck, the leading truck removes and drives the barrier plate and break away from the bin outlet, and the barrier plate moves down and can offset with pushing strip, and when the barrier plate moved the appointed position, can form the oblique shape state with pushing strip to be convenient for the material discharges, avoid the material to pile up at the top of barrier plate.

Preferably, the cross sections of the barrier strip and the pushing strip are arranged in a triangular structure, and the barrier strip, the pushing strip and the blocking plate are arranged in a vertical state.

Through above-mentioned technical scheme, blend stop, push away strip and barrier plate are the vertical state setting, can ensure that the barrier plate moves down the time with push away the strip and offset, form the inclined plane and be convenient for arrange the material, the barrier plate moves up the time with the inconsistent of blend stop, make the agitator tank bottom form sealed state, can not take place the condition of leaking the material when stirring.

Preferably, a plurality of extension bars are arranged on the outer sides of the stirring rod and the auxiliary stirring rod, and the extension bars on the stirring rod and the extension bars on the auxiliary stirring rod are arranged in a staggered structure.

Through above-mentioned technical scheme, the extension rod on the puddler is the staggered structure setting with the extension rod on the auxiliary stirring rod, and the puddler can improve inside stirring efficiency with auxiliary stirring rod cooperation, improves work efficiency.

Preferably, a ball is arranged between one side of the movable box opposite to the collecting box, the ball is rotationally embedded on one side of the movable box, and an I-shaped protruding block is arranged on the front side of the movable box.

Through the technical scheme, the ball rotates the embedded one side that sets up at the removal box, the front side that removes the box is provided with I shape lug, can concentrate the collection to smashing the material after the stirring, and it is convenient to get after the collection, and I shape lug can be convenient for pull and remove the box, and the ball can reduce the damping nature of removing between box and the collection box, can obtain laborsaving function of pulling and removing the box.

Preferably, the material crushing unit comprises a crushing box, the crushing box is connected to the upper side of the stirring box in a buckling manner, a motor III is arranged on the right side of the stirring box, a crushing roller is arranged at the shaft end of the motor III, the crushing roller is arranged in the crushing box, a feeding hopper is arranged on the upper side of the crushing box, and a material guide channel is arranged on the lower side of the crushing box.

Through the technical scheme, the crushing roller is arranged at the shaft end of the motor III, so that a crushing function can be provided.

Preferably, the outside of material collection unit is provided with and shakes the unit, shake the unit and be used for beating the inboard stirring material of stirring row material unit and shake auxiliary discharge.

Through above-mentioned technical scheme, strike shake the unit and can provide the function of striking shake to stirring row material unit, vibrate stirring row material unit.

Preferably, the knocking unit comprises a sliding frame, the sliding frame is arranged on the outer side of the collecting box in a left-right sliding mode, two ends of the upper side of the sliding frame are provided with L-shaped plates I, the upper side of each L-shaped plate I is in sliding connection with an L-shaped plate II, a spring is arranged on one side, opposite to the sliding frame, of each L-shaped plate II, and a knocking part is arranged at the bottom of the right side of the sliding frame.

Through above-mentioned technical scheme, utilize knocking the shake portion and strike the collecting box, make the collecting box remove about on the carriage to make L template two remove on L template one, extrude the spring, the spring provides a buffering effect, the collecting box receives to knock and shakes and swing about, thereby drives the agitator tank and swings, makes the stirring material in the agitator tank receive knocking and shake and can not take place the condition of solidification jam.

Preferably, the shock absorbing part comprises a mounting frame, the mounting frame is arranged at the bottom of the right side of the sliding frame, a motor IV is arranged on the upper side of the mounting frame, a cam is arranged at the shaft end of the motor IV, and a buffer block is arranged on the right side of the collecting box and opposite to the cam.

Through the technical proposal, the motor drives the cam to rotate, the cam impacts the buffer block, thereby driving the collecting box to shake left and right,

in summary, according to the utility model, firstly, crop straws are put into the material crushing unit to be crushed, then the crushed straws fall into the stirring box, then the motor I drives the stirring rod to rotate, the motor II drives the auxiliary stirring rod to rotate, the motor II simultaneously stirs the crushed straws, after stirring for a certain degree, the micro motor drives the threaded rod to rotate, the threaded rod thread transmission guide frame moves downwards, the guide frame drives the blocking plate to separate from the discharge hole, after a plurality of discharge holes are opened, the crushed straws are discharged through the discharge hole and fall into the movable box in the collecting box to be collected, in the whole process, the crushed straws after stirring are not blocked at the discharge position, and the whole discharge is smooth and can not be blocked.

According to the stirring box, the stirring uniformity in the stirring box can be improved and the stirring efficiency can be improved by arranging the stirring rod, the first motor, the auxiliary stirring rod and the second motor.

According to the utility model, the sliding frame, the first L-shaped plate, the second L-shaped plate, the spring, the mounting frame, the fourth motor, the cam and the buffer block are arranged, so that a vibration striking function can be provided for the collecting box, the vibration striking force is transmitted to the stirring box, the discharging efficiency of the discharging port at the bottom of the stirring box is improved, and the situation of blockage is avoided.

Drawings

FIG. 1 is a schematic diagram of a front side axial measurement structure of a crushing and stirring device for harmless treatment of crop straws;

FIG. 2 is a schematic diagram of a front cut-away axial measurement structure of the crushing and stirring device for harmless treatment of crop straws;

FIG. 3 is a schematic view of the structure of the discharging part of the present utility model;

FIG. 4 is an exploded schematic view of the crushing and stirring device for harmless treatment of crop straws;

FIG. 5 is a schematic view of an explosive section structure of a crushing and stirring device for harmless treatment of crop straws;

fig. 6 is a schematic cross-sectional structure of the material pulverizing unit of the present utility model.

In the figure: 1, a stirring and discharging unit; 11. a stirring tank; 12. a stirring rod; 13. a first motor; 14. an auxiliary stirring rod; 15. a second motor; 16. a micro motor; 17. a threaded rod; 18. a guide frame; 19. a blocking plate; 110. a connecting plate; 111. a connecting block; 112. a connecting shaft; 113. a barrier strip; 114. pushing the strip; 2. a material collection unit; 21. a collection box; 22. a partition plate; 23. a moving case; 3. a material crushing unit; 31. a crushing box; 32. a third motor; 33. a pulverizing roller; 34. a feed hopper; 35. a material guiding channel; 4. a knock element; 41. a carriage; 42. an L-shaped plate I; 43. an L-shaped plate II; 44. a spring; 45. a mounting frame; 46. a fourth motor; 47. a cam; 48. and a buffer block.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.

Example 1

As shown in fig. 1-2, a crushing and stirring device for harmless treatment of crop straws comprises a stirring and discharging unit 1, a material collecting unit 2 and a material crushing unit 3, wherein the stirring and discharging unit 1 comprises a stirring box 11, the lower surface of the stirring box 11 is provided with a plurality of discharging ports, the center position of the inner bottom of the stirring box 11 is provided with a stirring rod 12, the bottom end of the stirring rod 12 is provided with a motor I13, both ends of the inner bottom of the stirring box 11 are provided with auxiliary stirring rods 14, the outer sides of the stirring rod 12 and the auxiliary stirring rods 14 are provided with a plurality of extension rods, the extension rods on the stirring rod 12 and the extension rods on the auxiliary stirring rods 14 are arranged in a staggered structure,

the bottom end of the auxiliary stirring rod 14 is provided with a motor II 15, the lower side of the motor II 15 is provided with a discharging part, the discharging part comprises a micro motor 16, the micro motor 16 is arranged at the bottom of the motor II 15, the shaft end of the micro motor 16 is provided with a threaded rod 17, the outer side of the threaded rod 17 is in threaded sleeve connection with a guide frame 18, the guide frame 18 is in a U-shaped structure, both ends of the top of the guide frame 18 are provided with blocking plates 19, the blocking plates 19 are positioned in a discharging hole,

the material collecting unit 2 is arranged at the lower side of the stirring and discharging unit 1, the material collecting unit 2 comprises a collecting box 21, the collecting box 21 is connected at the lower side of the stirring box 11 in a buckling way, a baffle 22 is arranged at the center position of the inner side of the collecting box 21, two movable boxes 23 are inserted at the bottom of the inner side of the collecting box 21, balls are arranged between one side of the movable boxes 23 opposite to the collecting box 21, the balls are rotationally embedded at one side of the movable boxes 23, I-shaped lugs are arranged at the front side of the movable boxes 23,

the material pulverizing unit 3 is disposed on the upper side of the stirring and discharging unit 1.

During the use, put into the crop straw and smash in the material crushing unit 3, then the straw of smashing falls into stirring row material unit 1, cooperation between puddler 12, motor one 13, supplementary puddler 14 and motor two 15, stir the operation to the straw after smashing, finally by micro motor 16 drive threaded rod 17, threaded rod 17 screw drive leading truck 18, leading truck 18 removes and drives barrier plate 19 and break away from the bin outlet, thereby discharge the crushing material after stirring, a plurality of bin outlets of agitator tank 11 bottom are opened in the emission process, carry out the row material operation, thereby improve discharge efficiency, avoid the condition that takes place the jam in the discharge process, it provides a row material and prevents stifled function.

As shown in fig. 6, the material pulverizing unit 3 includes a pulverizing box 31, the pulverizing box 31 is snap-connected to the upper side of the stirring box 11, a third motor 32 is provided on the right side of the stirring box 11, a pulverizing roller 33 is provided at the shaft end of the third motor 32, the pulverizing roller 33 is disposed in the pulverizing box 31, a feeding hopper 34 is provided on the upper side of the pulverizing box 31, and a material guiding channel 35 is provided on the lower side of the pulverizing box 31.

When the crop straw crushing machine is used, crop straws are placed into a feed hopper 34 and then flow into a crushing box 31, a motor III 32 is used for driving a crushing roller 33 to crush the crop straws, and crushed crop straws enter the next step through a material guide channel 35.

As shown in fig. 2 and 4-5, a knocking unit 4 is arranged at the outer side of the material collecting unit 2, and the knocking unit 4 is used for performing knocking auxiliary discharging on the stirred material at the inner side of the stirring discharging unit 1;

the knocking unit 4 comprises a sliding frame 41, the sliding frame 41 is arranged on the outer side of the collecting box 21 in a left-right sliding manner, two ends of the upper side of the sliding frame 41 are respectively provided with an L-shaped plate I42, the upper side of the L-shaped plate I42 is in sliding connection with an L-shaped plate II 43, one side, opposite to the sliding frame 41, of the L-shaped plate II 43 is provided with a spring 44, and the bottom of the right side of the sliding frame 41 is provided with a knocking part;

the knocking portion includes a mounting frame 45, the mounting frame 45 is disposed at the bottom of the right side of the carriage 41, a motor four 46 is disposed on the upper side of the mounting frame 45, a cam 47 is disposed at the shaft end of the motor four 46, and a buffer block 48 is disposed at the right side of the collecting box 21 and at a position opposite to the cam 47.

When the stirring box is used, the motor IV 46 drives the cam 47 to rotate, the cam 47 impacts the buffer block 48 and knocks the collecting box 21, so that the collecting box 21 moves left and right on the sliding frame 41, the L-shaped plate II 43 moves on the L-shaped plate I42, the spring 44 is extruded, the spring 44 provides a buffering effect, the collecting box 21 is knocked to swing left and right, the stirring box 11 is driven to swing, and stirring materials in the stirring box 11 are knocked to avoid solidification and blockage.

According to the working principle of the utility model, crop straws are firstly placed into a feed hopper 34 and then flow into a crushing box 31, a crushing roller 33 is driven by a motor III 32 to crush the crop straws, the crushed crop straws enter a stirring box 11 through a material guide channel 35, a stirring rod 12 is driven by a motor I13 to rotate, an auxiliary stirring rod 14 is driven by a motor II 15 to rotate, the crushed straws are simultaneously stirred, after stirring for a certain degree, a threaded rod 17 is driven by a micro motor 16 to rotate, a threaded rod 17 is driven by a threaded guide frame 18 to move downwards, a blocking plate 19 is driven by the guide frame 18 to separate from a discharge hole, after a plurality of discharge holes are opened, the crushed straws are discharged through the discharge hole and fall into a moving box 23 in a collecting box 21, a motor IV 46 drives a cam 47 to rotate, a buffer block 48 is impacted by the cam 47 to strike the collecting box 21, the collecting box 21 is enabled to move left and right on a sliding frame 41, an L-shaped plate 43 is enabled to move on the L-shaped plate 42 to extrude a spring 44, the spring 44 is provided with a buffering effect, the collecting box 21 is knocked to swing left and right, so that the stirring box 11 is driven to swing, the whole straw is not blocked, and the whole crushing process is not blocked, and the crushed straws are not blocked.

Example 2

As shown in fig. 3, the embodiment 2 is different from the embodiment 1 in that the discharging part in the embodiment 2 further comprises a connecting plate 110, the connecting plate 110 is disposed on the upper side of the guide frame 18, a plurality of connecting blocks 111 are disposed on the upper side of the connecting plate 110, a connecting shaft 112 is rotatably connected to the inner side of the connecting plate 110, the connecting shaft 112 penetrates through one side of the connecting block 111, barrier strips 113 are disposed at two ends of the inner side of the discharging opening, push strips 114 are disposed at the inner side edge of the collecting box 21, the cross sections of the barrier strips 113 and the push strips 114 are disposed in a triangular structure, the barrier strips 113, the push strips 114 and the barrier plates 19 are disposed in a vertical state,

the working principle of this embodiment is similar to that of embodiment 1, and the main difference is that, during discharging, the micro motor 16 drives the threaded rod 17, the threaded rod 17 drives the guide frame 18, the guide frame 18 moves to drive the blocking plate 19 to separate from the discharging hole, the blocking plate 19 moves downwards to contact with the pushing strip 114, and when the blocking plate 19 moves to a designated position, an oblique state is formed with the pushing strip 114, so that materials are conveniently discharged, the materials are prevented from accumulating at the top of the blocking plate 19, and the principle of other parts is the same as that of embodiment 1, and details are not repeated herein.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (9)

1. Crushing and stirring device for harmless treatment of crop straws, which is characterized by comprising

The stirring and discharging unit (1), the stirring and discharging unit (1) comprises a stirring box (11), a plurality of discharging ports are arranged on the lower surface of the stirring box (11), a stirring rod (12) is arranged at the center position of the inner bottom of the stirring box (11), a motor I (13) is arranged at the bottom end of the stirring rod (12), auxiliary stirring rods (14) are arranged at two ends of the inner bottom of the stirring box (11),

the bottom of the auxiliary stirring rod (14) is provided with a motor II (15), the lower side of the motor II (15) is provided with a discharging part, the discharging part comprises a miniature motor (16), the miniature motor (16) is arranged at the bottom of the motor II (15), the shaft end of the miniature motor (16) is provided with a threaded rod (17), the outer side of the threaded rod (17) is in threaded sleeve connection with a guide frame (18), the guide frame (18) is in a U-shaped structure, both ends of the top of the guide frame (18) are provided with blocking plates (19), the blocking plates (19) are positioned in a discharging hole,

the material collecting unit (2), the material collecting unit (2) is arranged at the lower side of the stirring and discharging unit (1), the material collecting unit (2) comprises a collecting box (21), the collecting box (21) is connected at the lower side of the stirring box (11) in a buckling way, a baffle plate (22) is arranged at the center position of the inner side of the collecting box (21), two movable boxes (23) are inserted at the bottom of the inner side of the collecting box (21),

the material crushing unit (3), the material crushing unit (3) is arranged on the upper side of the stirring and discharging unit (1).

2. The smashing and stirring device for crop straw harmless treatment according to claim 1, wherein the discharging part further comprises a connecting plate (110), the connecting plate (110) is arranged on the upper side of the guide frame (18), a plurality of connecting blocks (111) are arranged on the upper side of the connecting plate (110), a connecting shaft (112) is connected to the inner side of the connecting plate (110) in a rotating mode, the connecting shaft (112) penetrates through one side of the connecting block (111), barrier strips (113) are arranged at two ends of the inner side of the discharging opening, and pushing strips (114) are arranged at the edge positions of the inner side of the collecting box (21).

3. The crushing and stirring device for harmless treatment of crop straws according to claim 2, wherein the cross sections of the barrier strips (113) and the pushing strips (114) are arranged in a triangular structure, and the barrier strips (113), the pushing strips (114) and the blocking plates (19) are arranged in a vertical state.

4. The smashing and stirring device for harmless treatment of crop straws according to claim 1, wherein a plurality of extension rods are arranged on the outer sides of the stirring rod (12) and the auxiliary stirring rod (14), and the extension rods on the stirring rod (12) and the extension rods on the auxiliary stirring rod (14) are arranged in a staggered structure.

5. The smashing and stirring device for harmless treatment of crop straws according to claim 1, wherein balls are arranged between one side of the movable box (23) opposite to the collecting box (21), the balls are rotationally embedded on one side of the movable box (23), and an I-shaped protruding block is arranged on the front side of the movable box (23).

6. The smashing and stirring device for crop straw harmless treatment according to claim 1, wherein the material smashing unit (3) comprises a smashing box (31), the smashing box (31) is connected to the upper side of the stirring box (11) in a buckled mode, a motor III (32) is arranged on the right side of the stirring box (11), a smashing roller (33) is arranged at the shaft end of the motor III (32), the smashing roller (33) is arranged in the smashing box (31), a feeding hopper (34) is arranged on the upper side of the smashing box (31), and a material guide channel (35) is arranged on the lower side of the smashing box (31).

7. The smashing and stirring device for harmless treatment of crop straws according to claim 1, wherein a knocking unit (4) is arranged on the outer side of the material collecting unit (2), and the knocking unit (4) is used for carrying out knocking auxiliary discharging on stirred materials on the inner side of the stirring and discharging unit (1).

8. The smashing and stirring device for harmless treatment of crop straws according to claim 7, wherein the knocking unit (4) comprises a sliding frame (41), the sliding frame (41) is arranged on the outer side of the collecting box (21) in a sliding manner in a left-right sliding manner, L-shaped plates I (42) are arranged at two ends of the upper side of the sliding frame (41), L-shaped plates II (43) are connected to the upper side of the L-shaped plates I (42) in a sliding manner, springs (44) are arranged on one side, opposite to the sliding frame (41), of the L-shaped plates II (43), and a knocking part is arranged at the bottom of the right side of the sliding frame (41).

9. The smashing and stirring device for crop straw harmless treatment according to claim 8, wherein the knocking part comprises a mounting frame (45), the mounting frame (45) is arranged at the bottom of the right side of the sliding frame (41), a motor IV (46) is arranged on the upper side of the mounting frame (45), a cam (47) is arranged at the shaft end of the motor IV (46), and a buffer block (48) is arranged on the right side of the collecting box (21) and at a position opposite to the cam (47).