Plant raw material chopping equipment for biogas digester

Abstract

The invention provides plant raw material chopping equipment for a biogas digester, and belongs to the technical field of plant chopping. The protection box is fixedly arranged on one side of the workbench, and threaded rods are arranged on the two sides of the inner wall of the protection box through bearings. When the straw chopping device is used, a handle is pulled upwards to drive a second pressing plate to move upwards, and straw needing to be chopped is placed between the second pressing plate and a first pressing plate; when a handle is loosened, a second pressing plate is pushed downwards through elastic force of two first springs, the first pressing plate and the second pressing plate further clamp the straw, an external power switch of a two-way motor is turned on, an output shaft of the two-way motor is controlled to rotate clockwise, and a sleeve is further made to move towards the cutting knife; furthermore, a first pressing plate is moved through two connecting plates, the straw is moved to the position below a cutting knife, and therefore when the straw is cut, the straw does not need to be manually pushed, the labor intensity is reduced, and the straw cutting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of plant chopping, in particular to a plant material chopping device for a biogas tank. Background Art

[0002] Straw refers to the remaining part of crops after harvest, usually including rice straw, wheat straw, and corn straw. They are the stems, leaves and other inedible parts of crops. The use of straw in biogas digesters is a treatment method that uses straw as raw material to produce biogas (the main component is methane) through anaerobic fermentation. This method can not only effectively process straw, but also provide clean energy for rural areas.

[0003] Before entering the biogas digester, the straw needs to be cut or crushed to increase its surface area and facilitate the decomposition of microorganisms. Some existing equipment cuts the straw into multiple sections with a cutting knife, but when cutting, the straw needs to be manually pushed under the cutting knife. This method usually brings about greater physical exertion, greatly increases the labor intensity, and also reduces the efficiency of straw chopping. Moreover, after the straw is chopped, there is a large amount of gravel in the straw, and the gravel in the straw is not separated. The gravel will affect the uniform distribution of materials in the biogas digester, resulting in uneven fermentation process, thereby affecting the overall fermentation effect. Summary of the invention

[0004] The present invention provides a plant material chopping device for a biogas pool. When the present invention chops the straw, there is no need to manually push the straw, which reduces labor intensity and improves the chopping efficiency of the straw. When the chopping device is used, the crushed stones in the straw are screened, and the screening efficiency is relatively good. When the device is used, the separated crushed stones are easy to take, which improves the practicability of the chopping device.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a plant material chopping device for a biogas tank, the device comprising: Workbench; A protection box is fixedly arranged on one side of the workbench, and threaded rods are arranged on both sides of the inner wall of the protection box through bearings. The threaded rods can rotate through the bearings. The protection box has a protective effect on its internal structure to prevent damage caused by exposure to the outside; A sleeve, which is threadedly sleeved on the outer surface of the threaded rod, and when the threaded rod rotates without the sleeve rotating together, the threaded rod moves on its outer surface; A support rod is fixedly arranged on both sides of the inner wall of the protection box, and a slide cylinder is movably sleeved on the outer surface of the support rod, and the slide cylinder can slide on the outer surface of the support rod; Two connecting plates are fixedly arranged on the outer surfaces of the sleeve and the slide cylinder respectively, and a first pressure plate is fixedly arranged on one side of the two connecting plates. The sleeve and the slide cylinder are connected together through the first pressure plate, so that when the threaded rod rotates in different directions, the sleeve moves in different directions on the outer surface of the threaded rod.

[0006] As a further improvement of the present invention: two vertical rods are fixedly provided on one side of the first pressure plate, and a second pressure plate is movably sleeved on the outer surfaces of the two vertical rods; a handle is fixedly provided on one side of the second pressure plate, and baffles are provided on one side of the two vertical rods, and a first spring is movably sleeved on the outer surfaces of the two vertical rods; a bidirectional motor is installed on one side of the protection box, and the output shaft of the bidirectional motor is connected to one side of the threaded rod. When the straw is chopped, the second pressure plate can slide on the outer surfaces of the two vertical rods, and the second pressure plate is driven to move upward by pulling the handle upward. At this time, the second pressure plate and the two baffles squeeze the two first springs, and the two The first spring has elastic force, and the straw to be chopped is placed in the middle position between the second pressing plate and the first pressing plate. The handle is released, and the elastic force of the two first springs pushes the second pressing plate downward, further allowing the first pressing plate and the second pressing plate to clamp the straw, and the external power switch of the bidirectional motor is turned on. The output shaft of the bidirectional motor can rotate forward and reverse, and then the output shaft of the bidirectional motor drives the threaded rod to rotate, controlling the output shaft of the bidirectional motor to rotate clockwise, further allowing the sleeve to move toward the cutting knife, and further moving the first pressing plate through the two connecting plates, so that the straw moves to the bottom of the cutting knife, and turning off the bidirectional motor to control the cutting knife to chop the straw, and chopping the straw into multiple sections.

[0007] As a further improvement of the present invention: a separation bin is fixedly provided on one side of the workbench, a horizontal axis is fixedly provided on both sides of the inner wall of the separation bin, a screening plate is movably sleeved on the outer surface of the horizontal axis, the screening plate can rotate around the horizontal axis, and the screening plate is tilted inside the separation bin. When the chopped straw falls into the separation bin, it is located on the screening plate. The tilted screening plate facilitates the sliding of the chopped straw on the screening plate, and the gravel in the straw is screened through the screening holes on the screening plate.

[0008] As a further improvement scheme of the present invention: two second sets of rods are fixedly provided on one side of the screening plate, and the first sets of rods are movably provided on the outer surfaces of the two second sets of rods, and second springs are fixedly provided on one side of the inner walls of the two first sets of rods. The two second sets of rods can slide on the inner walls of the two first sets of rods, and the two second springs will generate a reverse force when squeezed. When the circular plate moves downward, the two transmission plates are not acted upon by force. At this time, the reverse force of the two second springs pushes the two second sets of rods upward, further pushing the screening plate upward, causing the screening plate to vibrate, facilitating the sliding of the straw while making it easier for the gravel to fall.

[0009] As a further improvement scheme of the present invention: one side of the two second springs is respectively fixedly arranged on one side of the two second sets of rods, and a transmission plate is fixedly arranged on the outer surface of the two second sets of rods. One side of the two transmission plates is fixedly arranged with a first telescopic rod. The two first telescopic rods are pushed by the gas to apply a downward force to the two transmission plates, thereby further tilting the screening plate to facilitate the separation of straw and gravel.

[0010] As a further improvement scheme of the present invention: a second telescopic rod is movably sleeved on the outer surface of the two first telescopic rods, a first conduit is fixedly provided on one side of the two second telescopic rods, a second conduit is provided on one side of the two first conduits, the two first telescopic rods can slide inside the two second telescopic rods respectively, and the gas inside the hollow cylinder comes into the inside of the two first conduits through the second conduit, and is further discharged into the inside of the two second telescopic rods.

[0011] As a further improvement scheme of the present invention: a hollow cylinder is fixedly provided on one side of the second conduit, a circular plate is movably embedded in the inner wall of the hollow cylinder, a through hole is opened on the side of the workbench close to the separation bin, the circular plate can slide inside the hollow cylinder, and when the straw is chopped, the circular plate will move up and down, and when the circular plate moves upward, it will push the gas inside the hollow cylinder, and the chopped straw will fall into the inside of the separation bin through the through hole.

[0012] As a further improvement scheme of the present invention: a bracket is fixedly provided on one side of the workbench, a cylinder is installed on one side of the bracket, a round rod is fixedly provided on the output end of the cylinder, and a cutting knife is installed on one end of the round rod. When the straw is chopped, the straw is below the cutting knife. At this time, the output end of the cylinder is controlled to be pressed downward, so that the round rod further drives the cutting knife to move downward, and then the cutting edge of the cutting knife chops the straw. A notch is provided on the side of the workbench close to the cutting knife to facilitate the insertion of the cutting knife.

[0013] As a further improvement of the present invention: the round rod is fixedly embedded in the inner wall of the circular plate, and the round rod is movably embedded in one side of the hollow cylinder. When the round rod moves, the circular plate is driven to move, and the round rod can slide on one side of the hollow cylinder.

[0014] As a further improvement scheme of the present invention: groove plates are fixedly provided on both sides of the inner wall of the separation bin, groove plates are slidably provided on one side of the two groove plates, and a pull plate is fixedly provided on one side of the groove plates. The storage box can slide on one side of the two groove plates, and the storage box is moved by pulling the pull plate, at this time, the gravel inside the storage box can be taken out.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, when the straw is chopped, the second pressing plate can slide on the outer surfaces of the two uprights, and the second pressing plate is driven to move upward by pulling the handle upward. At this time, the second pressing plate and the two baffles squeeze the two first springs. The two first springs have elastic force, and the straw to be chopped is placed in the middle position of the second pressing plate and the first pressing plate. The handle is released, and the elastic force of the two first springs pushes the second pressing plate downward, further allowing the first pressing plate and the second pressing plate to clamp the straw. At this time, the external power switch of the bidirectional motor is turned on, and the output shaft of the bidirectional motor can rotate forward and reverse, and then the output shaft of the bidirectional motor drives the threaded rod to Rotation, since the slide can slide on the outer surface of the support rod, and the sleeve and the slide are connected together by the first pressure plate, when the threaded rod rotates in different directions, the sleeve moves in different directions on the outer surface of the threaded rod, at this time, the output shaft of the two-way motor is controlled to rotate clockwise, and the sleeve is further moved toward the cutting knife, and the first pressure plate is further moved through the two connecting plates, so that the straw moves to the bottom of the cutting knife, and the two-way motor is turned off to control the cutting knife to chop the straw, and the straw is chopped into multiple sections, so that when chopping the straw, there is no need to manually push the straw, which reduces labor intensity and improves the straw chopping efficiency.

[0016] 2. According to the present invention, after the straw is chopped, the chopped straw falls into the interior of the separation bin through the through hole, the screening plate can rotate with the horizontal axis as the axis, and the screening plate is tilted inside the separation bin, when the chopped straw falls into the interior of the separation bin, it is on the screening plate, the tilted screening plate is convenient for the chopped straw to slide on the screening plate, and the gravel in the straw is screened through the screening holes on the screening plate, the circular plate can slide inside the hollow cylinder, when the straw is chopped, the circular plate will move up and down, when the circular plate moves upward, the circular plate will push the gas inside the hollow cylinder, come to the interior of the two first conduits through the second conduit, and further be discharged to the interior of the two second telescopic rods, the two first telescopic rods can slide inside the two second telescopic rods respectively, at this time the two first telescopic rods Pushed by the gas, a downward force is applied to the two transmission plates, and the two second sets of rods can slide on the inner walls of the two first sets of rods. At this time, the two transmission plates push the two second sets of rods downward, further causing the two second sets of rods and the two first sets of rods to squeeze the two second springs. The two second springs will generate a reverse force when squeezed, further causing the screening plate to tilt to facilitate the separation of straw and gravel. When the circular plate moves downward, the two transmission plates are not acted upon by force. At this time, the reverse force of the two second springs pushes the two second sets of rods upward, further pushing the screening plate upward, causing the screening plate to vibrate, facilitating the sliding of the straw while making the gravel easier to fall off. Therefore, when using the shredding equipment, the gravel in the straw can be screened, and the screening efficiency is relatively good.

[0017] 3. In the present invention, when the straw is chopped, the straw is under the cutting knife. At this time, the output end of the control cylinder is pressed downward, so that the round rod further drives the cutting knife to move downward, and then the cutting edge of the cutting knife chops the straw. A notch is provided on the side of the workbench close to the cutting knife to facilitate the insertion of the cutting knife. The gravel falls into the interior of the storage box. The storage box can slide on one side of the two slot plates. The storage box is driven to move by pulling the pull plate. At this time, the gravel inside the storage box can be taken out, so that when the equipment is used, the separated gravel is easy to take, thereby improving the practicality of the shredding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention provides a side view of a stereoscopic structure of a plant material chopping device for a biogas tank.

[0019] Figure 2 The present invention provides a side view of a stereoscopic structure of a plant material chopping device for a biogas tank.

[0020] Figure 3 The present invention provides a side view of a stereoscopic structure of a plant material chopping device for a biogas tank.

[0021] Figure 4 The present invention provides a cross-sectional three-dimensional structural schematic diagram of a protection box in a plant material chopping device for a biogas tank.

[0022] Figure 5 The present invention provides a schematic cross-sectional three-dimensional structure diagram of a workbench in a plant material chopping device for a biogas tank.

[0023] Figure 6 The present invention provides a schematic diagram of the internal three-dimensional structure of a separation bin in a plant material chopping device for a biogas tank.

[0024] Figure 7 The present invention provides a schematic diagram of the cross-sectional three-dimensional structure of a hollow cylinder in a plant material chopping device for a biogas tank.

[0025] Figure 8 The present invention provides a schematic diagram of the internal three-dimensional structure of a separation bin in a plant material chopping device for a biogas tank.

[0026] Fig. 9 The present invention proposes a plant material chopping device for a biogas tank Figure 5 A in the figure is an enlarged schematic diagram of the three-dimensional structure.

[0027] Fig.10 The present invention proposes a plant material chopping device for a biogas tank Figure 5 B is a schematic diagram of the enlarged three-dimensional structure.

[0028] Legend: 1. Workbench; 2. Protection box; 201. Threaded rod; 202. Sleeve; 203. Support rod; 204. Slide; 205. Connecting plate; 206. First pressure plate; 207. Vertical rod; 208. Second pressure plate; 209. Baffle; 210. First spring; 211. Handle; 212. Bidirectional motor; 3. Separation bin; 301. Horizontal axis; 302. Screening plate; 303. First set of rods; 304. Second set of rods; 305. Second spring; 306. Transmission plate; 307. First telescopic rod; 308. Second telescopic rod; 309. First conduit; 310. Second conduit; 311. Hollow cylinder; 312. Round plate; 313. Through hole; 4. Bracket; 401. Cylinder; 402. Round rod; 403. Cutting knife; 404. Slot plate; 405. Storage box; 406. Pull plate. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0031] See also Figures 1 to 10 The present embodiment provides a plant material chopping device for a biogas tank, which includes a workbench 1; a protection box 2, which is fixedly arranged on one side of the workbench 1, and threaded rods 201 are arranged on both sides of the inner wall of the protection box 2 through bearings; a sleeve 202, which is threadedly sleeved on the outer surface of the threaded rod 201; a support rod 203, which is fixedly arranged on both sides of the inner wall of the protection box 2, and a slide 204 is movably sleeved on the outer surface of the support rod 203; two connecting plates 205, which are respectively fixedly arranged on the outer surfaces of the sleeve 202 and the slide 204, and the two connecting plates 205 ... A first pressure plate 206 is fixedly provided on one side of the connecting plate 205, two vertical poles 207 are fixedly provided on one side of the first pressure plate 206, a second pressure plate 208 is movably sleeved on the outer surfaces of the two vertical poles 207, a handle 211 is fixedly provided on one side of the second pressure plate 208, baffles 209 are provided on one side of the two vertical poles 207, first springs 210 are movably sleeved on the outer surfaces of the two vertical poles 207, a bidirectional motor 212 is installed on one side of the protective box 2, and the output shaft of the bidirectional motor 212 is connected to one side of the threaded rod 201.

[0032] When in use, the second pressing plate 208 can slide on the outer surfaces of the two vertical rods 207, and the second pressing plate 208 is driven to move upward by pulling the handle 211 upward. At this time, the second pressing plate 208 and the two baffles 209 squeeze the two first springs 210. The two first springs 210 have elastic force. The straw to be chopped is placed in the middle position of the second pressing plate 208 and the first pressing plate 206. The handle 211 is released, and the elastic force of the two first springs 210 pushes the second pressing plate 208 downward, further allowing the first pressing plate 206 and the second pressing plate 208 to clamp the straw. At this time, the external power switch of the bidirectional motor 212 is turned on, and the output shaft of the bidirectional motor 212 can rotate forward and reverse, thereby The output shaft of the motor 212 drives the threaded rod 201 to rotate. Since the slide 204 can slide on the outer surface of the support rod 203, and the sleeve 202 and the slide 204 are connected together by the first pressure plate 206, when the threaded rod 201 rotates in different directions, the sleeve 202 moves in different directions on the outer surface of the threaded rod 201. At this time, the output shaft of the bidirectional motor 212 is controlled to rotate clockwise, and the sleeve 202 is further moved toward the cutting knife 403. The first pressure plate 206 is further moved through the two connecting plates 205, so that the straw moves to the bottom of the cutting knife 403, and the bidirectional motor 212 is turned off to control the cutting knife 403 to chop the straw into multiple sections.

[0033] See also Figures 1 to 10 In one embodiment, a separation bin 3 is fixedly provided on one side of the workbench 1, and a horizontal axis 301 is fixedly provided on both sides of the inner wall of the separation bin 3. A screening plate 302 is movably sleeved on the outer surface of the horizontal axis 301. The screening plate 302 can rotate around the horizontal axis 301, and the screening plate 302 is tilted inside the separation bin 3. When the chopped straw falls into the separation bin 3, it is located on the screening plate 302. The tilted screening plate 302 facilitates the chopped straw to slide on the screening plate 302, and the gravel in the straw is screened through the screening holes on the screening plate 302.

[0034] See also Figures 1 to 10 In one embodiment, two second rods 304 are fixedly provided on one side of the screening plate 302, and the first rods 303 are movably sleeved on the outer surfaces of the two second rods 304, and a second spring 305 is fixedly provided on one side of the inner wall of the two first rods 303. The two second rods 304 can slide on the inner walls of the two first rods 303, and the two second springs 305 will generate a reverse force when squeezed. When the circular plate 312 moves downward, the two transmission plates 306 are not acted upon. At this time, the reverse force of the two second springs 305 pushes the two second rods 304 upward, further pushing the screening plate 302 upward, causing the screening plate 302 to vibrate, facilitating the sliding of the straw and making it easier for the gravel to fall.

[0035] See also Figures 1 to 10 In one embodiment, one side of the two second springs 305 is fixedly arranged on one side of the two second sets of rods 304, and a transmission plate 306 is fixedly arranged on the outer surface of the two second sets of rods 304. One side of the two transmission plates 306 is fixedly arranged with a first telescopic rod 307. The two first telescopic rods 307 are pushed by the gas to apply a downward force to the two transmission plates 306, thereby further tilting the screening plate 302 to facilitate the separation of straw and gravel.

[0036] See also Figures 1 to 10 In one embodiment, a second telescopic rod 308 is movably sleeved on the outer surface of the two first telescopic rods 307, a first conduit 309 is fixedly provided on one side of the two second telescopic rods 308, a second conduit 310 is provided on one side of the two first conduits 309, and the two first telescopic rods 307 can slide inside the two second telescopic rods 308 respectively. The gas inside the hollow cylinder 311 comes into the inside of the two first conduits 309 through the second conduit 310, and is further discharged into the inside of the two second telescopic rods 308.

[0037] See also Figures 1 to 10 In one embodiment, a hollow cylinder 311 is fixedly provided on one side of the second conduit 310, and a circular plate 312 is movably embedded in the inner wall of the hollow cylinder 311. A through hole 313 is opened on the side of the workbench 1 close to the separation bin 3, and the circular plate 312 can slide inside the hollow cylinder 311. When the straw is chopped, the circular plate 312 will move up and down. When the circular plate 312 moves upward, the circular plate 312 will push the gas inside the hollow cylinder 311, and the chopped straw will fall into the interior of the separation bin 3 through the through hole 313.

[0038] See also Figures 1 to 10 In one embodiment, a bracket 4 is fixedly provided on one side of the workbench 1, a cylinder 401 is installed on one side of the bracket 4, a round rod 402 is fixedly provided on the output end of the cylinder 401, and a cutting knife 403 is installed on one end of the round rod 402. When the straw is chopped, the straw is below the cutting knife 403. At this time, the output end of the cylinder 401 is controlled to be pressed down, so that the round rod 402 further drives the cutting knife 403 to move downward, and then the cutting edge of the cutting knife 403 chops the straw. A notch is provided on the side of the workbench 1 close to the cutting knife 403 to facilitate the insertion of the cutting knife 403.

[0039] See also Figures 1 to 10 In one embodiment, the round rod 402 is fixedly embedded in the inner wall of the circular plate 312 , and the round rod 402 is movably embedded in one side of the hollow cylinder 311 . When the round rod 402 moves, the circular plate 312 is driven to move, and the round rod 402 can slide on one side of the hollow cylinder 311 .

[0040] See also Figures 1 to 10 In one embodiment, both sides of the inner wall of the separation bin 3 are fixedly provided with groove plates 404, one side of the two groove plates 404 is slidably provided with groove plates 404, and one side of the groove plates 404 is fixedly provided with a pull plate 406, and the storage box 405 can slide on one side of the two groove plates 404, and the storage box 405 is driven to move by pulling the pull plate 406, and the gravel inside the storage box 405 can be taken out at this time Working principle: When the straw is chopped, the second pressing plate 208 can slide on the outer surface of the two vertical rods 207, and the second pressing plate 208 is driven to move upward by pulling the handle 211 upward. At this time, the second pressing plate 208 and the two baffles 209 squeeze the two first springs 210. The two first springs 210 have elastic force. The straw to be chopped is placed in the middle position of the second pressing plate 208 and the first pressing plate 206. The handle 211 is released, and the elastic force of the two first springs 210 pushes the second pressing plate 208 downward, further allowing the first pressing plate 206 and the second pressing plate 208 to clamp the straw. At this time, the external power switch of the bidirectional motor 212 is turned on, and the output shaft of the bidirectional motor 212 can rotate forward and reverse, and then the output shaft of the bidirectional motor 212 drives the threaded rod 2 01 is rotated, since the slide 204 can slide on the outer surface of the support rod 203, and the sleeve 202 and the slide 204 are connected together by the first pressing plate 206, when the threaded rod 201 rotates in different directions, the sleeve 202 moves in different directions on the outer surface of the threaded rod 201, and at this time, the output shaft of the bidirectional motor 212 is controlled to rotate clockwise, and the sleeve 202 is further moved toward the cutting knife 403, and the first pressing plate 206 is further moved through the two connecting plates 205, so that the straw moves to the bottom of the cutting knife 403, and the bidirectional motor 212 is turned off to control the cutting knife 403 to chop the straw, and the straw is chopped into multiple sections, so that when chopping the straw, there is no need to manually push the straw, which reduces the labor intensity and improves the chopping efficiency of the straw; After the straw is chopped, the chopped straw falls into the separation bin 3 through the through hole 313. The screening plate 302 can rotate with the horizontal axis 301 as the axis, and the screening plate 302 is tilted inside the separation bin 3. When the chopped straw falls into the separation bin 3, it is on the screening plate 302. The tilted screening plate 302 facilitates the sliding of the chopped straw on the screening plate 302, and the gravel in the straw is screened through the screening holes on the screening plate 302. The circular plate 312 can slide inside the hollow cylinder 311. When the straw is chopped, the circular plate 312 will move up and down. When the circular plate 312 moves upward, the circular plate 312 will push the gas inside the hollow cylinder 311 to the inside of the two first conduits 309 through the second conduit 310, and further discharged to the inside of the two second telescopic rods 308. The two first telescopic rods 307 can slide inside the two second telescopic rods 308 respectively. At this time, the two first telescopic rods 307 can slide inside the two second telescopic rods 308. The retracted rod 307 is pushed by the gas, exerting a downward force on the two transmission plates 306, and the two second sets of rods 304 can slide on the inner walls of the two first sets of rods 303. At this time, the two transmission plates 306 push the two second sets of rods 304 downward, further causing the two second sets of rods 304 and the two first sets of rods 303 to squeeze the two second springs 305. The two second springs 305 will generate a reverse force when being squeezed, further causing the screening plate 302 to tilt, making it more convenient to separate the straw and the gravel. When the circular plate 312 moves downward, the two transmission plates 306 are not acted upon by a force. At this time, the reverse force of the two second springs 305 pushes the two second sets of rods 304 upward, further pushing the screening plate 302 upward, causing the screening plate 302 to vibrate, facilitating the sliding of the straw and making it easier for the gravel to fall off, so that when the shredding device is used, the gravel in the straw can be screened, and the screening efficiency is relatively good. When the straw is chopped, the straw is under the cutting knife 403. At this time, the output end of the control cylinder 401 is pressed down, so that the round rod 402 further drives the cutting knife 403 to move downward, so that the cutting edge of the cutting knife 403 cuts the straw. A notch is provided on the side of the workbench 1 close to the cutting knife 403 to facilitate the insertion of the cutting knife 403. The gravel falls into the interior of the storage box 405. The storage box 405 can slide on one side of the two slot plates 404 and the storage box 405 can be moved by pulling the pull plate 406. At this time, the gravel inside the storage box 405 can be taken out, so that when the equipment is used, the separated gravel is easy to take, thereby improving the practicality of the shredding equipment.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A plant material chopping device for a biogas tank, characterized in that: The equipment includes: Workbench (1); A protection box (2) is fixedly arranged on one side of the workbench (1), and threaded rods (201) are arranged on both sides of the inner wall of the protection box (2) via bearings; A sleeve (202) threadably sleeved on the outer surface of the threaded rod (201); A support rod (203) is fixedly arranged on both sides of the inner wall of the protection box (2), and a slide cylinder (204) is movably sleeved on the outer surface of the support rod (203); The two connecting plates (205) are respectively fixedly arranged on the outer surfaces of the sleeve (202) and the slide cylinder (204), and a first pressing plate (206) is fixedly arranged on one side of the two connecting plates (205).

2. The plant material chopping device for a biogas digester according to claim 1, characterized in that: Two vertical poles (207) are fixedly provided on one side of the first pressure plate (206); a second pressure plate (208) is movably sleeved on the outer surfaces of the two vertical poles (207); a handle (211) is fixedly provided on one side of the second pressure plate (208); a baffle (209) is provided on one side of the two vertical poles (207); a first spring (210) is movably sleeved on the outer surfaces of the two vertical poles (207); a bidirectional motor (212) is installed on one side of the protection box (2); and an output shaft of the bidirectional motor (212) is connected to one side of the threaded rod (201).

3. The plant material chopping device for a biogas digester according to claim 1, characterized in that: A separation bin (3) is fixedly provided on one side of the workbench (1), and transverse axes (301) are fixedly provided on both sides of the inner wall of the separation bin (3), and a screening plate (302) is movably sleeved on the outer surface of the transverse axis (301).

4. The plant material chopping device for a biogas digester according to claim 3, characterized in that: Two second rods (304) are fixedly provided on one side of the screening plate (302), first rods (303) are movably sleeved on the outer surfaces of the two second rods (304), and second springs (305) are fixedly provided on one side of the inner walls of the two first rods (303).

5. The plant material chopping device for a biogas digester according to claim 4, characterized in that: One side of the two second springs (305) is respectively fixedly arranged on one side of the two second sleeve rods (304), a transmission plate (306) is fixedly arranged on the outer surface of the two second sleeve rods (304), and one side of the two transmission plates (306) is fixedly arranged with a first telescopic rod (307).

6. The plant material chopping device for a biogas digester according to claim 5, characterized in that: A second telescopic rod (308) is movably sleeved on the outer surface of the two first telescopic rods (307), a first conduit (309) is fixedly provided on one side of the two second telescopic rods (308), and a second conduit (310) is provided on one side of the two first conduits (309).

7. The plant material chopping device for a biogas digester according to claim 6, characterized in that: A hollow cylinder (311) is fixedly provided on one side of the second conduit (310), a circular plate (312) is movably embedded on the inner wall of the hollow cylinder (311), and a through hole (313) is provided on one side of the workbench (1) close to the separation bin (3).

8. The plant material chopping device for a biogas digester according to claim 7, characterized in that: A bracket (4) is fixedly provided on one side of the workbench (1), a cylinder (401) is installed on one side of the bracket (4), a round rod (402) is fixedly provided on the output end of the cylinder (401), and a cutting knife (403) is installed on one end of the round rod (402).

9. The plant material chopping device for a biogas digester according to claim 8, characterized in that: The round rod (402) is fixedly embedded in the inner wall of the circular plate (312), and the round rod (402) is movably embedded in one side of the hollow cylinder (311).

10. The plant material chopping device for a biogas digester according to claim 3, characterized in that: Both sides of the inner wall of the separation bin (3) are fixedly provided with slot plates (404), one side of the two slot plates (404) is slidably provided with a slot plate (404), and one side of the slot plate (404) is fixedly provided with a pull plate (406).

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