CN111937608A

CN111937608A - Crop straw processing device

Info

Publication number: CN111937608A
Application number: CN202010818308.2A
Authority: CN
Inventors: 蔡明远; 贺江美
Original assignee: CHANGSHA CHUANGYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: CHANGSHA CHUANGYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2020-11-17
Anticipated expiration: 2040-08-14
Also published as: CN111937608B

Abstract

The invention discloses a crop straw treatment device, which belongs to the technical field of crop treatment and comprises a feeding pipe, an upper box body, a connecting pipe and a lower box body, wherein the feeding pipe, the upper box body, the connecting pipe and the lower box body are sequentially arranged from top to bottom; an oil liquid conveying system comprising a first oil cylinder, a second oil cylinder and a third oil cylinder is arranged below the rotating disc, and the third oil cylinder is fixedly connected with the pushing plate; one side of the lower box body is provided with a rotating door, and the rotating door is controlled to be opened by the oil liquid transmission system. The invention can realize the cutting and compaction of the straw crops by driving through one driving motor, and can drive and control the rotating door to open the compacted crops to discharge the crops out of the machine body at proper time, thereby realizing the automation of the crop treatment and discharge.

Description

Crop straw processing device

Technical Field

The invention relates to the technical field of crop treatment, in particular to a crop straw treatment device.

Background

The crop can have inedible straw after being harvested, such as straw, corn, wheat and the like, and the straw crops are abandoned or burnt as wastes, so that not only is the resource waste and the environmental pollution caused, but also great pressure is caused on the forest protection fire prevention work. At present, the straws can be effectively treated and utilized through a straw returning utilization technology, a straw feed utilization technology, a straw energy technology, a straw edible fungus cultivation base material utilization technology and the like, and waste materials are changed into valuable materials. In the processing process of the straws, the straws are generally required to be cut and compacted, and the automation degree of equipment for cutting and compacting the straws in the prior art is low, and the number of power components is large, so that the operation is inconvenient.

Disclosure of Invention

1. Technical problem to be solved

The technical problem to be solved by the invention is to provide a crop straw treatment device, which can realize the cutting and compaction of straw crops by driving through a driving motor, can drive and control a rotating door to open a machine body to discharge the compacted crops at a proper time, realizes the automation of crop treatment and discharge, and is convenient to operate.

2. Technical scheme

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

a crop straw treatment device comprises a lower box body and an upper box body, wherein the lower box body is supported on the ground through support legs, the upper box body is connected above the lower box body through support rods, a feeding pipe is communicated with the top surface of the upper box body, a vertically arranged connecting pipe is communicated between the bottom surface of the upper box body and the lower box body, a telescopic rod is horizontally connected to one side of the position, communicated with the feeding pipe, of the top surface in the upper box body in a sliding mode, and a horizontally arranged cutter is fixed on the telescopic rod; an L-shaped extrusion plate is arranged in the lower box body, the transverse part of the extrusion plate is attached to the inner top surface of the lower box body, the lower end of the longitudinal part of the extrusion plate is attached to the inner bottom surface of the lower box body, and the end part of the extrusion plate is equal to the width of the inner cavity of the lower box body; the lower box body is provided with a rotary door corresponding to one side of the extrusion plate back to the transverse part of the extrusion plate, the upper end of the rotary door is hinged with the lower box body through a hinge shaft, a counterweight block is fixed on one side of the free end of the rotary door back to the lower box body, a telescopic positioning plate is arranged in the rotary door along the length direction of the rotary door, the inner side end of the positioning plate is connected with a third spring fixedly connected with the inner part of the rotary door, a fixed block fixed on the lower box body is arranged below the rotary door, and a positioning groove for inserting the outer side end of the positioning plate is formed in the upper part of the fixed block;

one side of the feeding pipe, which is back to the rotating door, is provided with a horizontally arranged rotating shaft, the rotating shaft is connected with the upper box body through a bearing, one end of the rotating shaft, which faces the feeding pipe, is connected with a driving motor, one end of the rotating shaft, which is back to the feeding pipe, is fixedly provided with a longitudinally arranged rotating disc, the end surface of the rotating disc, which is connected with the rotating shaft, is an inclined plane, one end of the telescopic rod, which is back to the cutter, penetrates and extends to the outer side of the upper box body, the outer side end of the telescopic rod abuts against the inclined plane of the rotating disc, the outer side end of the telescopic rod is fixedly provided with a convex block;

a first oil cylinder which is longitudinally arranged and fixedly connected with the lower box body is arranged below the rotating disc, a first piston which extends upwards is arranged in the first oil cylinder, a hinge rod is connected between the edge side of one side surface of the rotating disc, which is back to the rotating shaft, and the upper end of the first piston, the two ends of the hinge rod are respectively provided with a hinge structure, the lower end of one side of the first oil cylinder is communicated with a first oil through pipe, the other end of the first oil through pipe is connected with a second oil cylinder which is horizontally fixed on one side of the lower box body, a second piston which is transversely inserted into the inner cavity of the lower box body is arranged in the second oil cylinder, one end of the second piston, which is positioned at the inner side of the lower box body, is attached and sleeved with a third oil cylinder which is horizontally connected to the extrusion plate, a limiting anti-falling structure is arranged between the open side of the third oil cylinder and the second piston, and a second spring which is horizontally arranged and, the bottom of lower box is equipped with first oil pocket, middle cavity and the second oil pocket that separates each other in proper order along the horizontal direction, the one end intercommunication of third hydro-cylinder dorsad second hydro-cylinder has the second oil pipe that communicates with cavity one side in the middle of first oil pocket dorsad, first oil pocket is equipped with the third piston that extends to in the middle cavity, be equipped with the fourth piston that extends to in the middle cavity and keep level with the third piston in the second oil pocket, the constant head tank lower part is the third oil pocket, the intercommunication has third oil pipe between second oil pocket and the third oil pocket, be equipped with the pressure valve on the third oil pipe, the inside of third oil pocket is equipped with the piston plate, the upper surface of the lower extreme conflict piston plate of locating plate.

Further, the last port of inlet pipe is tubaeform, go up the interior bottom surface of box and gradually be high to week side by its middle part, the connecting pipe is connected in the middle part of last box internal bottom surface. The trumpet-shaped design of the upper end opening of the feeding pipe can facilitate the insertion of crops into the feeding pipe; the circumferential side of the bottom surface in the upper box body is gradually lowered to the middle part, so that the cut crops can be guided to the connecting pipe conveniently.

Furthermore, one end of the telescopic rod, which is contacted with the rotating disc, is embedded with a ball. The friction between the end part of the telescopic rod and the rotating disc can be reduced by utilizing the rolling property of the balls, so that the transmission effect from the rotating disc to the telescopic rod can be favorably ensured.

Furthermore, the part of the upper end surface of the fixed block, which is positioned outside the positioning groove, is provided with an inclined surface which is gradually lowered towards the outside, and the lower end surface of the positioning plate is an inclined surface matched with the positioning plate. Through the design of the inclined planes of the positioning plate and the upper end face of the fixed block, the positioning plate can be promoted to cross the top of the fixed block and enter the positioning groove in the resetting process of the rotating door.

As an improvement of the scheme, a feeding roller and a driven roller which are horizontally arranged are arranged in the feeding pipe, a gap for straw crops to pass through is reserved between the feeding roller and the driven roller, two ends of the feeding roller are coaxially connected with small short shafts which pass through the feeding pipe, one of the small short shafts is coaxially and fixedly connected with a rotating shaft, and the other small short shaft is connected with a driving motor; and a fixed shaft fixedly connected with the feeding pipe is arranged on the axis of the driven roller in a penetrating manner in a clearance mode. Straw crops are inserted between the feeding roller and the driven roller, so that the feeding roller and the driven roller clamp the straw crops, and the straw crops can be regularly transmitted into the upper box body through the rotation of the feeding roller and the driven roller, so that the cutting of the straw is conveniently carried out by the cutter; and the feeding roller is driven by the existing driving motor, and a driving mechanism is not required to be additionally arranged, so that the cost is saved.

As an improvement to the above scheme, the bottom of the extrusion plate is provided with a notch and connected with a liquid discharge pipe extending to the outer side of the lower box body. When the press plate presses the cut crop, juice may be produced, which may be drained through the gap in the bottom of the press plate and through the drain.

3. Advantageous effects

(1) The invention is provided with a feeding pipe, an upper box body, a connecting pipe and a lower box body which are sequentially arranged from top to bottom, a cutter positioned on one side of a lower port of the feeding pipe is transversely arranged in the upper box body, a squeezing plate positioned on one side of the connecting pipe is arranged in the lower box body, after crops such as straws are longitudinally inserted into the feeding pipe, the cutter can be driven to move left and right in a reciprocating manner through telescopic movement of a telescopic rod, the crops can be cut, the cut crops fall into the upper box body and enter the connecting pipe, intermittent feeding in the lower box body can be realized through reciprocating transverse movement of an L-shaped squeezing plate, and the squeezing plate can compact the crops in the lower box body.

(2) According to the telescopic rod, the rotating shaft of the driving motor and the rotating disc are connected, the end face, abutting against the telescopic rod, of the rotating disc is an inclined plane which is arranged obliquely, and the telescopic rod can be driven to move telescopically through the rotation of the rotating disc; through the arrangement of the first oil cylinder, the second oil cylinder and the third oil cylinder, a first piston hinged with the rotating disc through a hinge rod is arranged in the first oil cylinder, a second piston inserted into the third oil cylinder is arranged in the second oil cylinder, and the third oil cylinder is fixedly connected with the pushing plate.

(3) A rotating door is arranged on one side of a lower box body, a positioning plate is arranged in the rotating door in a telescopic mode, a fixing block is fixed on the lower portion of one side of the lower box body, a positioning groove into which the positioning plate is inserted is formed in the fixing block, an oil transmission system is arranged between the positioning groove and a third oil cylinder and comprises a third oil cavity arranged in the positioning groove, a second oil cavity communicated with the third oil cavity, a first oil cavity communicated with the third oil cylinder and a middle cavity located between the first oil cavity and the second oil cavity are formed in the bottom of the lower box body, a third piston and a fourth piston which are aligned in opposite directions are correspondingly arranged in the first oil cavity and the second oil cavity, and a gap is reserved between the two pistons. When the number of crops in the lower box body is small, even if a small amount of oil enters the first oil cavity, the third piston cannot contact the fourth piston, and the rotating door cannot be opened; when more crops are accumulated in the lower box body, in the process that the crop is extruded by the extrusion plate, the reaction force borne by the extrusion plate is larger, the second piston still moves towards the side where the third oil cylinder is located at the moment, so that oil in the third oil cylinder is conveyed into the first oil cavity in a large quantity, at the moment, the third piston can contact the fourth piston and push the fourth piston to push the oil in the second oil cavity into the third oil cavity, the piston plate in the third oil cavity can rise to push the positioning plate out of the fixing block, and at the moment, under the continuous pushing action of the extrusion plate, the compacted crops can be pushed to open the rotating door to be discharged out of the machine body. The process is still realized by the motor drive, so that the invention can utilize the existing drive motor to control the proper opening of the rotating door to discharge the treated crops out of the machine body in the process of realizing the automatic segmentation and compaction of the straw crops, thereby realizing the automation of the treatment and discharge of the crops.

(4) According to the invention, the third oil passage is arranged between the second oil chamber and the third oil chamber, the pressure valve is arranged on the third oil passage, and the pressure valve can be opened to send oil to the third oil chamber only when the pressure of the oil sent to the third oil chamber from the second oil chamber is greater than the set pressure of the pressure valve, so that the situation that the rotating door can be opened only when the pushing plate is subjected to a large enough reaction force is further limited, the rotating door can be prevented from being opened accidentally, and the proper time for opening the rotating door can be ensured.

(5) According to the invention, the balancing weight is fixed at the outer end side of the rotating door, when straw crops are discharged out of the machine body, the rotating door rotates downwards around the hinge shaft under the action of the gravity of the balancing weight, the third spring can be compressed, so that the rotating door can be reset smoothly, and under the reset action of the third spring, the positioning plate can be inserted into the positioning groove smoothly, the rotating door is locked again, and the processing of the crops is facilitated continuously.

In conclusion, the straw crop cutting and compacting machine can realize the cutting and compacting of straw crops by driving through one driving motor, can drive and control the rotating door to open the rotating door at a proper time to discharge compacted crops out of the machine body, realizes the automation of crop treatment and discharge, and is convenient to operate.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a top view of the internal structure of the feed tube 14.

Reference numerals: 1. supporting legs; 2. a lower box body; 3. a second cylinder; 4. a first oil pipe; 5. a first cylinder; 6. a first piston; 7. a hinged lever; 8. a hinge structure; 9. rotating the disc; 10. a telescopic rod; 11. a first spring; 12. a bearing; 13. a rotating shaft; 14. a feed pipe; 15. a drive motor; 16. a connecting pipe; 17. an upper box body; 18. a support bar; 19. hinging a shaft; 20. a rotating door; 21. a balancing weight; 22. a fixed block; 23. a third oil pipe; 24. a pressure valve; 25. a first oil chamber; 26. a third piston; 27. a second oil through pipe; 28. a second piston; 29. a second spring; 30. a third oil cylinder; 31. a pressing plate; 32. a cutter; 33. a feed roll; 34. a liquid discharge pipe; 35. a third spring; 36. positioning a plate; 37. a piston plate; 38. a third oil chamber; 39. a second oil chamber; 40. a fourth piston; 41. a middle cavity; 42. a driven roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1, the crop straw treatment device comprises a lower box body 2 supported on the ground through a support leg 1 and an upper box body 17 connected above the lower box body 2 through a support rod 18, wherein a feed pipe 14 is communicated with the top surface of the upper box body 17, a vertically arranged connecting pipe 16 is communicated between the bottom surface of the upper box body 17 and the lower box body 2, as shown in fig. 2, a telescopic rod 10 is horizontally and slidably connected to one side of the position where the top surface in the upper box body 17 is communicated with the feed pipe 14, and a horizontally arranged cutter 32 is fixed on the telescopic rod 10; an L-shaped extrusion plate 31 is arranged in the lower box body 2, the transverse part of the extrusion plate 31 is attached to the inner top surface of the lower box body 2, the lower end of the longitudinal part of the extrusion plate 31 is attached to the inner bottom surface of the lower box body 2, and the end part of the extrusion plate 31 is equal to the width of the inner cavity of the lower box body 2; one side of the lower box body 2, which corresponds to the extrusion plate 31 and faces away from the transverse part of the extrusion plate, is open and hinged with a rotating door 20, the upper end of the rotating door 20 is hinged with the lower box body 2 through a hinge shaft 19, a counterweight 21 is fixed at one side of the free end of the rotating door 20, which faces away from the lower box body 2, a telescopic positioning plate 36 is arranged inside the rotating door 20 along the length direction of the rotating door, the inner side end of the positioning plate 36 is connected with a third spring 35 fixedly connected with the inside of the rotating door 20, a fixed block 22 fixed on the lower box body 2 is arranged below the rotating door 20, and a positioning groove for inserting the outer side end of the positioning plate 36 is formed in the upper;

a horizontally arranged rotating shaft 13 is arranged on one side, back to the rotating door 20, of the feeding pipe 14, the rotating shaft 13 is connected with an upper box body 17 through a bearing 12, one end, facing the feeding pipe 14, of the rotating shaft 13 is connected with a driving motor 15, one end, back to the feeding pipe 14, of the rotating shaft 13 is fixedly provided with a rotating disc 9 which is longitudinally arranged, the end face, connected with the rotating shaft 13, of the rotating disc 9 is an inclined plane which is obliquely arranged, one end, back to the cutter 32, of the telescopic rod 10 penetrates through and extends to the outer side of the upper box body 17, the outer side end of the telescopic rod 10 abuts against the inclined plane of the rotating disc 9, a protruding block is fixedly arranged at the outer side end of the telescopic rod 10, and a first;

a first oil cylinder 5 which is longitudinally arranged and fixedly connected with the lower box body 2 is arranged below the rotating disc 9, a first piston 6 which extends upwards is arranged in the first oil cylinder 5, a hinge rod 7 is connected between the edge side of one side surface of the rotating disc 9, which is back to the rotating shaft 13, and the upper end of the first piston 6, two ends of the hinge rod 7 are respectively provided with a hinge structure 8, the lower end of one side of the first oil cylinder 5 is communicated with a first oil through pipe 4, the other end of the first oil through pipe 4 is connected with a second oil cylinder 3 which is horizontally fixed on one side of the lower box body 2, a second piston 28 which is transversely inserted into the inner cavity of the lower box body 2 is arranged in the second oil cylinder 3, one end of the second piston 28, which is positioned at the inner side of the lower box body 2, is attached and sleeved with a third oil cylinder 30 which is horizontally connected to the extrusion plate 31, and a limiting anti-falling structure (a structure of a sliding block and a sliding groove can, not shown in the drawings), a second spring 29 which is horizontally arranged and is fixedly connected with the second piston 28 is fixed in the third oil cylinder 30, and as shown in fig. 2, a return spring which is horizontally connected to the inner side wall of the lower box body 2 is connected to one side of the vertical part of the extrusion plate 31 which is connected with the third oil cylinder 30, so as to assist in realizing the complete return of the extrusion plate 31;

the bottom of lower box 2 is equipped with first oil pocket 25, middle cavity 41 and the second oil pocket 39 that separate each other in proper order along the horizontal direction, the one end intercommunication that third hydro-cylinder 30 dorsad second hydro-cylinder 3 has the second logical oil pipe 27 with first oil pocket 25 dorsad middle cavity 41 one side intercommunication, first oil pocket 25 is equipped with the third piston 26 that extends to in the middle cavity 41, be equipped with in the second oil pocket 39 and extend to in the middle cavity 41 and with the fourth piston 40 of third piston 26 peace, the constant head tank lower part is third oil pocket 38, the intercommunication has third oil pipe 23 between second oil pocket 39 and the third oil pocket 38, be equipped with pressure valve 24 on the third oil pipe 23, the inside of third oil pocket 38 is equipped with piston plate 37, the lower extreme of locating plate 36 contradicts the upper surface of piston plate 37.

In this embodiment, as shown in fig. 1, the upper end of the feeding pipe 14 is formed in a horn shape, the inner bottom surface of the upper housing 17 is gradually raised from the middle portion thereof to the peripheral side, and the connecting pipe 16 is connected to the middle portion of the inner bottom surface of the upper housing 17. The flared design of the upper end of the feeding pipe 14 can facilitate the crop to be inserted into the feeding pipe 14; the circumferential side of the inner bottom surface of the upper box body 17 is gradually lowered towards the middle part, so that the cut crops can be conveniently guided to the connecting pipe 16.

In the present embodiment, as shown in fig. 1 and 2, one end of the telescopic rod 10 contacting the rotating disc 9 is embedded with a ball. The friction between the end of the telescopic rod 10 and the rotating disc 9 can be reduced by utilizing the rolling property of the balls, so that the transmission effect from the rotating disc 9 to the telescopic rod 10 is favorably ensured.

In this embodiment, as shown in fig. 2, a portion of the upper end surface of the fixing block 22 located outside the positioning groove is provided with an inclined surface gradually decreasing outward, and the lower end surface of the positioning plate 36 is an inclined surface adapted thereto. By the design of the inclined surfaces of the positioning plate 36 and the upper end surface of the fixed block 22, the positioning plate 36 is promoted to cross over the top of the fixed block 22 and enter the positioning groove during the reset of the rotating door 20.

In this embodiment, as shown in fig. 2 and 3, a horizontally arranged feed roller 33 and a driven roller 42 are arranged in the feed pipe 14, a gap for straw crops to pass through is reserved between the feed roller 33 and the driven roller 42, two ends of the feed roller 33 are coaxially connected with a small short shaft passing through the feed pipe 14, one of the small short shafts is coaxially and fixedly connected with the rotating shaft 13, and the other small short shaft is connected with the driving motor 15; the fixed shaft fixedly connected with the feeding pipe 14 is arranged on the axis of the driven roller 42 in a clearance type. Straw crops are inserted between the feeding roller 33 and the driven roller 42, so that the feeding roller 33 and the driven roller 42 clamp the straw crops, the straw crops can be regularly transmitted into the upper box body 17 through the rotation of the feeding roller 33 and the driven roller 42, and the cutting of the straw is conveniently carried out by the cutter 32; and the feeding roller 33 is driven by the existing driving motor 15, and a driving mechanism is not required to be additionally arranged, so that the cost is saved.

In this embodiment, as shown in fig. 2, the bottom of the pressing plate 31 is cut with a notch and connected to a drain pipe 34 extending to the outside of the lower case 2. When the pressing plate 31 presses the cut crop, juice may be generated, and the juice may be discharged through the notch at the bottom of the pressing plate 31 and the drain pipe 34.

The concrete action principle of the crop processing device is as follows:

in an initial state, the cutter 32 is positioned on one side of the lower port of the feeding pipe 14, the extrusion plate 31 is positioned on one side of the lower port of the connecting pipe 16, the first piston 6 is positioned at the upper end of the first oil cylinder 5, the second piston 28 is positioned on the left side, the second spring 29 is in a natural state, and the distance between the third piston 26 and the fourth piston 40 is larger; when the device is used, crops such as straws are longitudinally inserted into the feeding pipe 14, the crops are clamped between the feeding roller 33 and the driven roller 42, then the driving motor 15 is started to drive the feeding roller 33 and the rotating shaft 13 to rotate, the feeding roller 33 can drive the crops to move downwards, and the driven roller 42 can also be driven to rotate, so that the crops are promoted to move downwards; meanwhile, the rotating shaft 13 drives the rotating disc 9 to rotate, and because the end part of the telescopic rod 10 abuts against the rotating disc 9, in the process that the rotating disc 9 rotates from one end with smaller thickness to the other end, the telescopic rod 10 is pushed to move upwards in the box body 17, the first spring 11 is compressed, and the telescopic rod 10 drives the cutter 32 to extend out of the lower port of the feeding pipe 14, so that crops can be cut off; in the process that the rotating disc 9 rotates from one end with larger thickness to the other end, the elastic restoring force of the first spring 11 pushes the telescopic rod 10 to move outwards, so that the telescopic rod 10 drives the cutter 32 to reset;

the cut crops enter the lower box body 2 through the connecting pipe 16, and in the process that the upper end of the hinged rod 7 rotates from the upper part of the rotating disc 9 to the lower part, the hinged rod 7 can drive the first piston 6 to move downwards, so that the oil in the first oil cylinder 5 enters the second oil cylinder 3 through the first oil through pipe 4, the second piston 28 is pushed to move downwards in the box body 2, after the end part of the second piston 28 pushes the second spring 29 to compress part, the third oil cylinder 30 and the extrusion plate 31 are pushed to move towards the side of the rotating door 20, at the moment, part of the oil in the third oil cylinder 30 enters the first oil chamber 25 through the second oil through pipe 27, the oil can push the third piston 26 to move towards the side of the fourth piston 40 for a small section, but the positioning plate 36 is inserted into the positioning groove, so that the rotating door 20 cannot be pushed open, and the extrusion plate 31 can extrude the crops in the lower box body 2 conveniently, and the feeding of the lower tank 2 is suspended because the lower port of the connecting pipe 16 is completely blocked by the lateral portion of the pressing plate 31; in the process that the upper end of the hinged rod 7 rotates from the lower part of the rotating disc 9 to the upper part, the hinged rod 7 can drive the first piston 6 to move upwards, so that oil liquid in the second oil cylinder 3 is sucked into the first oil cylinder 5 through the first oil pipe 4, the second piston 28 moves to reset towards the outer side of the lower box body 2 under the action of suction force generated by reduction of the oil liquid and reset elasticity of the second spring 29 in the second oil cylinder 3, and the limiting anti-falling structure between the second piston 28 and the third oil cylinder 30 can drive the extrusion plate 31 to reset, so that the lower port of the connecting pipe 16 is communicated with the lower box body 2, and the cut materials can continuously enter the lower box body 2, namely, the intermittent feeding of the lower box body can be realized;

along with the increase of the accumulation of the crops in the lower box body 2, when the pushing plate 31 pushes the crops, the reaction force of the crops to the pushing plate 31 is increased, so that the pushing plate 31 and the third oil cylinder 30 move to the side of the second oil cylinder 3, the second spring 29 is compressed, more oil in the third oil cylinder 3 enters the first oil chamber 25 through the second oil passage 27, the third piston 26 is pushed to extend out and contact the fourth piston 40, the fourth piston 40 is pushed to move in the second oil chamber 39, so that the oil in the second oil chamber 39 enters the third oil passage 23, the entering of the part of oil meets the opening requirement of the pressure valve 24, the part of oil enters the third oil chamber 38 through the third oil passage 23, the piston plate 37 is jacked up, the positioning plate 36 is separated from the positioning groove, the third spring 35 is compressed, at this time, under the pushing force of the pushing plate 31, the compacted crops can be pushed to push the rotating door 20 to be smoothly discharged, namely, the cutting and compaction treatment of the straw crops is completed.

After the straw crops are discharged from the machine body, the rotating door 20 rotates downwards around the hinge shaft 19 under the action of the gravity of the balancing weight 21, the lower end of the positioning plate 36 and the inclined plane of the upper end face of the fixing block 22 are arranged, and the third spring 35 can be compressed, so that the rotating door 20 can be reset smoothly, and under the resetting action of the third spring 35, the positioning plate 36 can be inserted into the positioning groove smoothly to lock the rotating door 20 again, so that the processing of the crops is facilitated to be continued; the positioning plate 36 can be smoothly inserted into the positioning groove, so that the oil previously entering the third oil chamber 38 returns to the second oil chamber 39 along the third oil passage 23, and pushes the fourth piston 40 and the third piston 26 to move to the side of the first oil chamber 25, and meanwhile, because all the cylinders are in the reset state, the oil previously entering the first oil chamber 25 is sucked back to the third oil cylinder 30 through the second oil passage 27, and the suction force generated by the reduction of the oil can assist the third piston 26 to reset.

According to the invention, the cutting and compacting of the straw crops can be realized by one driving motor, the rotating door can be opened at a proper time under driving control to discharge the compacted crops out of the machine body, the automation of crop treatment and discharge is realized, and the operation is convenient.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The crop straw treatment device is characterized by comprising a lower box body (2) which is supported on the ground through support legs (1) and an upper box body (17) which is connected above the lower box body (2) through support rods (18), wherein a feeding pipe (14) is communicated with the top surface of the upper box body (17), a vertically arranged connecting pipe (16) is communicated between the bottom surface of the upper box body (17) and the lower box body (2), a telescopic rod (10) is horizontally connected to one side of the position, communicated with the feeding pipe (14), of the inner top surface of the upper box body (17) in a sliding manner, and a horizontally arranged cutter (32) is fixed on the telescopic rod (10); an L-shaped extrusion plate (31) is arranged in the lower box body (2), the transverse part of the extrusion plate (31) is attached to the inner top surface of the lower box body (2), the lower end of the longitudinal part of the extrusion plate (31) is attached to the inner bottom surface of the lower box body (2), and the end part of the extrusion plate (31) is equal to the width of the inner cavity of the lower box body (2); one side of the lower box body (2), which corresponds to the extrusion plate (31) and is back to the transverse part of the extrusion plate, is opened and hinged with a rotating door (20), the upper end of the rotating door (20) is hinged with the lower box body (2) through a hinge shaft (19), one side of the free end of the rotating door (20), which is back to the lower box body (2), is fixed with a balancing weight (21), a telescopic positioning plate (36) is arranged inside the rotating door (20) along the length direction of the rotating door, the inner side end of the positioning plate (36) is connected with a third spring (35) fixedly connected with the inside of the rotating door (20), a fixed block (22) fixed on the lower box body (2) is arranged below the rotating door (20), and the upper part of the fixed block (22) is provided with a positioning groove for inserting the outer side end of the;

a rotating shaft (13) which is horizontally arranged is arranged on one side of the feeding pipe (14) back to the rotating door (20), the rotating shaft (13) is connected with the upper box body (17) through a bearing (12), one end of the rotating shaft (13) facing the feeding pipe (14) is connected with a driving motor (15), a rotating disc (9) which is longitudinally arranged is fixed at one end of the rotating shaft (13) which is back to the feeding pipe (14), the end surface of the rotating disc (9) connected with the rotating shaft (13) is an inclined surface which is arranged obliquely, one end of the telescopic rod (10) back to the cutter (32) penetrates and extends to the outer side of the upper box body (17), the outer side end of the telescopic rod (10) is abutted against the inclined plane of the rotating disc (9), a convex block is fixed at the outer side end of the telescopic rod (10), a first spring (11) sleeved on the telescopic rod (10) is arranged between the lug and the upper box body (17);

a first oil cylinder (5) which is longitudinally arranged and fixedly connected with the lower box body (2) is arranged below the rotating disc (9), a first piston (6) which extends upwards is arranged in the first oil cylinder (5), a hinge rod (7) is connected between the edge side of one side surface of the rotating disc (9) back to the rotating shaft (13) and the upper end of the first piston (6), two ends of the hinge rod (7) are respectively provided with a hinge structure (8), the lower end of one side of the first oil cylinder (5) is communicated with a first oil through pipe (4), the other end of the first oil through pipe (4) is connected with a second oil cylinder (3) which is horizontally fixed on one side of the lower box body (2), a second piston (28) which is transversely inserted into the inner cavity of the lower box body (2) is arranged in the second oil cylinder (3), and a third oil cylinder (30) which is horizontally connected to the extrusion plate (31) is sleeved at the attached end of the second piston (28) which is positioned at the inner side of the lower box body, a limiting anti-falling structure is arranged between the open side of the third oil cylinder (30) and the second piston (28), and a second spring (29) which is horizontally arranged and fixedly connected with the second piston (28) is fixed in the third oil cylinder (30); the bottom of the lower box body (2) is sequentially provided with a first oil chamber (25), a middle cavity (41) and a second oil chamber (39) which are separated from each other along the horizontal direction, one end of a third oil cylinder (30) back to the second oil cylinder (3) is communicated with a second oil through pipe (27) communicated with one side of the first oil chamber (25) back to the middle cavity (41), the first oil chamber (25) is provided with a third piston (26) extending into the middle cavity (41), a fourth piston (40) extending into the middle cavity (41) and being flush with the third piston (26) is arranged in the second oil chamber (39), the lower portion of the positioning groove is a third oil chamber (38), a third oil pipe (23) is communicated between the second oil chamber (39) and the third oil chamber (38), a pressure valve (24) is arranged on the third oil pipe (23), and a piston plate (37) is arranged in the third oil chamber (38), the lower end of the positioning plate (36) props against the upper surface of the piston plate (37).

2. The crop straw treatment device according to claim 1, wherein the upper end of the feeding pipe (14) is formed in a horn shape, the inner bottom surface of the upper tank (17) is gradually raised from the middle portion thereof to the peripheral side, and the connecting pipe (16) is connected to the middle portion of the inner bottom surface of the upper tank (17).

3. The crop straw treatment device according to claim 1, wherein a ball is embedded in one end of the telescopic rod (10) contacting the rotating disc (9).

4. The crop straw treatment device as claimed in claim 1, wherein the upper end surface of the fixing block (22) is provided with a slope gradually decreasing outward at a portion outside the positioning groove, and the lower end surface of the positioning plate (36) is a slope adapted thereto.

5. The crop straw treatment device according to any one of claims 1 to 4, wherein a horizontally arranged feeding roller (33) and a driven roller (42) are arranged in the feeding pipe (14), a gap for straw crops to pass through is reserved between the feeding roller (33) and the driven roller (42), two ends of the feeding roller (33) are coaxially connected with a small short shaft which passes through the feeding pipe (14), one small short shaft is fixedly connected with the rotating shaft (13) in a coaxial manner, and the other small short shaft is connected with the driving motor (15); and a fixed shaft fixedly connected with the feeding pipe (14) is arranged on the axis of the driven roller (42) in a penetrating manner at intervals.

6. The crop straw treatment device according to any one of claims 1 to 4, wherein the bottom of the pressing plate (31) is provided with a notch and connected with a drain pipe (34) extending to the outer side of the lower box body (2).