Material crusher for straw recycling and processing and crushing method thereof

Abstract

The present invention belongs to the technical field of straw recycling equipment, and discloses a material crusher for straw recycling and processing and a crushing method thereof, comprising a crusher box, a bracket fixedly installed on one side of the crusher box, a gear four and a gear five rotatably installed on the front and back of the crusher box, respectively, the two gear fours are respectively meshed with the corresponding gear five, a conveyor belt is arranged inside the bracket, and a pushing mechanism and a preliminary crushing mechanism are arranged on the outer wall of the bracket; the multi-dimensional composite movement of the L-shaped block can effectively compact the straw and push it into the preliminary crushing mechanism evenly, which greatly reduces the clogging phenomenon of the straw during the crushing process. When processing a large amount of straw or straw with uneven texture, the traditional straw crusher is prone to clogging problems, resulting in reduced production efficiency or even equipment damage, while the device effectively avoids this problem by optimizing the material processing method, thereby improving the operating stability and reliability of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of straw recycling equipment, in particular to a material crusher for straw recycling and processing and a crushing method thereof. Background Art

[0002] Straw, as a general term for the stems and leaves of mature crops, generally covers the valuable parts left after the seeds of major crops such as wheat, rice, and corn are harvested. Half of the products accumulated by these crops through photosynthesis are stored in the straw. Therefore, straw is a resource-rich biomass material. It not only contains a variety of organic matter components such as nitrogen, phosphorus, and potassium, but also shows great potential and diverse applications as a renewable resource.

[0003] In the current agricultural waste treatment, crushers have become key equipment for effectively crushing straw. However, in actual application, existing straw crushers often need to be used in conjunction with conveyor belts to complete the continuous feeding of straw. In this process, when a large amount of straw is continuously transported to the crushing port on the conveyor belt, a significant problem emerges: due to the long length and relatively light texture of the straw itself, they are easy to accumulate at the entrance of the crusher and are not easy to be cut smoothly, which causes blockage.

[0004] Traditional solutions usually rely on manual intervention by workers. They need to press the piled straw down and try to push it towards the crushing port at the same time to ensure that the straw can smoothly enter the grinder for processing. This operation method not only greatly consumes human resources and increases labor costs, but more importantly, it also brings potential safety hazards that cannot be ignored. When workers perform such operations, accidents are easy to occur due to contact with high-speed machine parts or obstructed vision caused by straw accumulation. Therefore, it needs to be improved and optimized. Summary of the invention

[0005] In order to solve the problem of blockage of traditional straw crushers raised in the above background technology due to reliance on manual intervention, which not only consumes manpower and increases costs, but also has significant safety hazards, the present invention provides a material crusher for straw recycling and processing and a crushing method thereof.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a material crusher for straw recycling and processing, comprising a crushing box, a bracket fixedly installed on one side of the crushing box, a gear four and a gear five rotatably installed on the front and back of the crushing box, two gears four respectively mesh with the corresponding gear five, a conveyor belt is arranged inside the bracket, and a pushing mechanism and a preliminary crushing mechanism are arranged on the outer wall of the bracket;

[0007] The pushing mechanism includes two pushing components, which are symmetrically distributed on the front and back of the bracket respectively. Each pushing component includes two fixed bars fixedly installed on the outer wall of the bracket. On one side of the two fixed bars close to each other, a connecting block is slidably installed. At the bottom of the connecting block, an elliptical ring is fixedly installed. At the top of the connecting block, a U-shaped block is fixedly installed. A slider is slidably installed on the inner wall of the U-shaped block. A first round block is arranged in the middle of the elliptical ring, and the first round block is in fit with the inner wall of the elliptical ring. A cylinder is rotatably installed on the front of the crushing machine case. A main rod is fixedly sleeved on the outer wall of the cylinder. A first sub-rod and a second sub-rod are respectively hingedly installed on the outer walls of the top and bottom of the main rod. The other end of the second sub-rod is hingedly installed with a third sub-rod, and the third sub-rod is hingedly connected with the front of the first round block. The first sub-rod is hingedly connected with the slider.

[0008] Preferably, the primary crushing mechanism includes two cutting components. Each cutting component includes two second rotating rods respectively rotatably installed on the outer walls of the front and back of the crushing machine case. One ends of the two second rotating rods close to each other respectively extend into the crushing machine case. Gear three is fixedly sleeved on the outer walls of the two second rotating rods. Second round blocks are respectively fixedly installed at the ports of the two second rotating rods close to each other. The two second round blocks are located inside the crushing machine case. The two gear threes are located outside the crushing machine case. Round rods are fixedly installed on one side of the two second round blocks close to each other. A cutting knife is fixedly sleeved on the outer wall of the round rod. Gear three meshes with the adjacent gear four.

[0009] Preferably, the hinge connection point between the third sub-rod and the first round block is not located at the geometric center of the first round block, but is eccentrically designed, that is, the hinge point does not coincide with the center of the first round block.

[0010] Preferably, grooves are respectively formed on one side of the two fixed bars close to each other. Limiting convex blocks are respectively fixedly installed on both sides of the connecting block. The two limiting convex blocks are respectively adapted to the corresponding grooves and are slidably connected with the corresponding grooves.

[0011] Preferably, first rotating rods are fixedly installed on one side of the two first round blocks close to each other. The first rotating rods do not coincide with the centers of the first round blocks and are eccentrically arranged. Gear two is fixedly sleeved on the outer wall of the first rotating rod. Both ends of the first rotating rod penetrate through the bracket and are rotatably connected with the bracket. Gear two is located inside the bracket.

[0012] Preferably, a motor is fixedly installed on the inner wall of the front of the bracket. Gear one is fixedly sleeved on the output shaft of the motor. Gear one meshes with gear two.

[0013] Preferably, sliding grooves are respectively formed in the front and back surfaces of the two U-shaped blocks. T-shaped columns are respectively fixedly installed on the front surface of the front slider and the back surface of the rear slider. The two T-shaped columns are respectively slidably connected to the corresponding sliding grooves. L-shaped blocks are respectively fixedly installed on one side of the two sliders close to each other. Connecting rods are respectively fixedly installed on the front and back surfaces of the L-shaped blocks. The two connecting rods are respectively slidably connected to the corresponding sliding grooves.

[0014] Preferably, the round rod is in an eccentric layout between the two second round blocks, and its position does not coincide with the geometric center of the second round block. The two second rotating rods are respectively coincident with the centers of the two second round blocks.

[0015] Preferably, pulley wheels are respectively fixedly sleeved on the output shaft of the motor and the outer wall of the corresponding second rotating rod. The two pulley wheels are connected by a belt in a transmission manner.

[0016] A crushing method for a straw recycling and processing material crusher, and the specific steps of this method are as follows;

[0017] S1, Material input: Feed the straw to be crushed into the crushing chamber of the crusher through the feed port;

[0018] S2, The straw that has been preliminarily crushed is thrown at a high speed by the hammer pieces towards the tooth plate and the screen plate fixed inside the crushing chamber. The straw is collided on the tooth plate and rubbed on the screen plate at the same time, so that the straw is further crushed. After multiple collisions and rubbings, the straw is gradually refined and screened through the screen holes;

[0019] S3, The crushed material after screening is discharged from the crusher through the discharge port.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] Through the multi-dimensional composite movement of the L-shaped block, the present invention can effectively compact the straw and evenly push it into the preliminary crushing mechanism, which greatly reduces the blockage phenomenon of the straw during the crushing process. Traditional straw crushers are prone to blockage problems when dealing with a large amount or unevenly textured straw, resulting in a decrease in production efficiency and even equipment damage. However, this device effectively avoids this problem by optimizing the material handling method, improving the operating stability and reliability of the equipment. Compared with traditional devices, it does not require frequent manual intervention to handle blockage problems, not only greatly saving labor costs, but also avoiding potential safety hazards caused by improper manual operation. Compared with the tediousness and inefficiency of traditional straw crushers relying on manual handling of blockages, this device realizes a higher degree of automation, improving production efficiency and safety.

[0022] By setting up a preliminary cutting mechanism, the present invention uses two cutting knives to preliminarily cut the straw entering the crushing machine case in opposite moving directions, which can effectively cut the straw, reduce the entanglement and blockage of the straw. The delicate crushing effect not only helps the smooth progress of subsequent processing, but also reduces the energy consumption and time cost in the subsequent processing. The crushed straw is more easily further processed into the required granular or powdery products, thereby improving the production efficiency of the entire straw recycling and processing process. In addition, due to the reduction of blockage and failures, the device can also maintain stable operation for a longer time, further enhancing the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural view of the present invention;

[0024] Figure 2 is a schematic combined structural view of the pushing mechanism and the preliminary crushing mechanism of the present invention;

[0025] Figure 3 is a schematic structural view of the pushing mechanism of the present invention;

[0026] Figure 4 is an exploded structural view of the pushing mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 is an enlarged structural view of A in;

[0028] Figure 6 is a partial exploded structural view of the pushing mechanism of the present invention;

[0029] Figure 7 is a schematic structural view of the preliminary crushing mechanism of the present invention;

[0030] Figure 8 is a schematic structural view of Gear 3, Gear 4 and Gear 5 of the present invention;

[0031] Fig. 9 is a schematic structural view of the round rod and the cutting knife of the present invention.

[0032] In the figure: 1. Crushing machine case; 101. Bracket; 1011. Fixed strip; 1012. Groove; 1013. Cylinder; 102. Conveyor belt; 2. Oval ring; 3. Connecting block; 301. Limit convex block; 4. C-shaped block; 401. Slide groove; 5. Slide block; 501. T-shaped column; 6. L-shaped block; 7. Motor; 8. Gear 1; 9. Round block 1; 10. Rotating rod 1; 1001. Gear 2; 11. Main rod; 1101. Sub-rod 1; 1102. Sub-rod 2; 1103. Sub-rod 3; 12. Belt; 13. Rotating rod 2; 1301. Gear 3; 1302. Round block 2; 14. Gear 4; 1401. Gear 5; 15. Round rod; 1501. Cutting knife. Specific Embodiment

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] As Figures 1 to 9 shown, the present invention provides a material crusher for straw recycling and processing, including a crushing machine case 1. A bracket 101 is fixedly installed on one side of the crushing machine case 1. A gear four 14 and a gear five 1401 are respectively rotatably installed on the front and back of the crushing machine case 1. The two gears four 14 are respectively engaged with the corresponding gears five 1401. A conveyor belt 102 is arranged inside the bracket 101, and a pushing mechanism and a preliminary crushing mechanism are arranged on the outer wall of the bracket 101;

[0035] The pushing mechanism includes two pushing components. The two pushing components are respectively arranged on the front and back of the bracket 101 in a symmetric distribution design. The pushing component includes two fixing bars 1011 fixedly installed on the outer wall of the bracket 101. A connecting block 3 is slidably installed on the side where the two fixing bars 1011 are close to each other. An elliptical ring 2 is fixedly installed at the bottom of the connecting block 3. A U-shaped block 4 is fixedly installed at the top of the connecting block 3. A slider 5 is slidably installed on the inner wall of the U-shaped block 4. A circular block one 9 is arranged in the middle of the elliptical ring 2. The circular block one 9 is in contact with the inner wall of the elliptical ring 2. A cylinder 1013 is rotatably installed on the front of the crushing machine case 1. A main rod 11 is fixedly sleeved on the outer wall of the cylinder 1013. A first sub-rod 1101 and a second sub-rod 1102 are respectively hinged on the top and bottom outer walls of the main rod 11. The other end of the second sub-rod 1102 is hinged to a third sub-rod 1103. The third sub-rod 1103 is hinged to the front of the circular block one 9. The first sub-rod 1101 is hinged to the slider 5.

[0036] Through two symmetrically distributed pushing components, efficient pushing of straw on the conveyor belt 102 is achieved, and the two round blocks 9 are driven to rotate in the elliptical ring 2 by the rotating rod 10. Since the rotating rod 10 is installed at the eccentric position of the round block 9, the rotation of the round block 9 will drive the elliptical ring 2 and the connecting block 3 and the L-shaped block 4 on the top of the elliptical ring 2 to reciprocate in the vertical direction. At the same time, during the rotation of the round block 9, the auxiliary rod 3 1103, the auxiliary rod 2 1102, the main rod 11 and the auxiliary rod 1 1101 are driven to move in turn. Through the hinge connection between the auxiliary rod 1101 and the slider 5, the slider 5 reciprocates in the horizontal direction on the inner wall of the L-shaped block 4, and finally the L-shaped block 6 can perform a combined movement in the vertical and horizontal directions. The multi-dimensional composite movement not only ensures that the straw is effectively compacted, but also ensures that the straw can be pushed into the preliminary crushing mechanism evenly and orderly, thereby avoiding the common blockage and material accumulation problems in traditional crushers and greatly improving the crushing efficiency.

[0037] like Figures 6 to 9 As shown, the preliminary crushing mechanism includes two groups of cutting components, and the cutting components include two rotating rods 13 which are rotatably installed on the front and back outer walls of the crushing box 1 respectively, and the ends of the two rotating rods 13 that are close to each other extend into the crushing box 1 respectively, and the outer walls of the two rotating rods 13 are fixedly sleeved with gears 3 1301, and the ports of the two rotating rods 13 that are close to each other are fixedly installed with round blocks 1302 respectively, the two round blocks 1302 are located inside the crushing box 1, and the two gears 3 1301 are located outside the crushing box 1, and the sides of the two round blocks 1302 that are close to each other are fixedly installed with round rods 15, and the outer walls of the round rods 15 are fixedly sleeved with cutting knives 1501.

[0038] The corresponding gear three 1301 is driven to rotate by the rotating rod two 13, and the gear three 1301 is meshed with the gear four 14 and the gear four 14 is meshed with the gear five 1401, so that the gear three 1301 of the two cutting components rotate in opposite directions, and the two gear threes 1301 respectively drive the corresponding round block two 1302 to rotate. Due to the eccentric setting with the round block two 1302, the two round rods 15 respectively drive the two cutters 1501 to reciprocate in the vertical direction, and the movement directions of the two cutters 1501 are opposite, so that the straw entering the crushing box is preliminarily cut to avoid the entanglement and blockage of the straw, thereby greatly improving the crushing efficiency.

[0039] like Figure 6 As shown, the hinge connection point between the auxiliary rod three 1103 and the circular block 9 is not located at the geometric center of the circular block 9, but adopts an eccentric design, that is, the hinge point does not coincide with the center of the circular block 9.

[0040] The hinge point of the auxiliary rod three 1103 and the first round block 9 is not located at the geometric center of the first round block 9, but an eccentric design is adopted. When the auxiliary rod three 1103 moves with the main rod 11 and its related auxiliary rods, an additional torque can be generated and act on the first round block 9. This torque will drive the first round block 9 and its connected pushing mechanism to perform more complex movements, so as to more effectively compact and push the straw.

[0041] As Figures 2 to 9 shown, grooves 1012 are respectively formed on the sides of the two fixing bars 1011 close to each other. Limiting bumps 301 are respectively and fixedly installed on both sides of the connecting block 3. The two limiting bumps 301 are respectively adapted to the corresponding grooves 1012 and are slidably connected with the corresponding grooves 1012. Rotating rods one 10 are respectively and fixedly installed on the sides of the two first round blocks 9 close to each other. The rotating rods one 10 do not coincide with the centers of the first round blocks 9, and are eccentrically arranged. A second gear 1001 is fixedly sleeved on the outer wall of the rotating rod one 10. Both ends of the rotating rod one 10 penetrate through the bracket 101 and are rotatably connected with the bracket 101. The second gear 1001 is located inside the bracket 101. A motor 7 is fixedly installed on the front inner wall of the bracket 101. A first gear 8 is fixedly sleeved on the output shaft of the motor 7. The first gear 8 meshes with the second gear 1001.

[0042] The stable sliding connection is formed by the grooves 1012 formed on the two fixing bars 1011 and the limiting bumps 301 on the connecting block 3, ensuring the smooth sliding of the connecting block 3 on the fixing bar and also restricting the movement of the connecting block 3 in the vertical direction, thereby enhancing the stability and reliability of the pushing mechanism.

[0043] As Figure 3 to Figure 4 shown, sliding grooves 401 are respectively formed on the front and back of the two U-shaped blocks 4. T-shaped columns 501 are respectively and fixedly installed on the front of the front slider 5 and the back of the rear slider 5. The two T-shaped columns 501 are respectively slidably connected with the corresponding sliding grooves 401. L-shaped blocks 6 are respectively and fixedly installed on the sides of the two sliders 5 close to each other. Connecting rods are respectively and fixedly installed on the front and back of the L-shaped blocks 6. The two connecting rods are respectively slidably connected with the corresponding sliding grooves 401.

[0044] The stable sliding connection is formed by the sliding grooves 401 formed on the U-shaped blocks 4 and the T-shaped columns 501 fixed on the sliders 5, not only ensuring the smooth sliding of the sliders 5 in the sliding grooves 401, but also restricting the movement of the sliders 5 in the horizontal direction through the close fit between the T-shaped columns 501 and the sliding grooves 401.

[0045] As Figures 6 to 9 shown, the round rod 15 is in the eccentric layout of the two second round blocks 1302, and its position does not coincide with the geometric center of the second round blocks 1302. The two rotating rods two 13 respectively coincide with the centers of the two second round blocks 1302.

[0046] By arranging the round rod 15 in the eccentric arrangement of the two second round blocks 1302, when the rotating rod 13 drives the second round block 1302 and the round rod 15 to rotate, the cutter 1501 will cut into the straw in an asymmetric manner. The asymmetric cutting method can more effectively break the straw.

[0047] like Figure 7 As shown, the output shaft of the motor 7 and the outer wall of the corresponding rotating rod 13 are respectively fixedly sleeved with pulleys, and the two pulleys are connected through the belt 12.

[0048] The belt 12 is used for transmission connection, so that the rotational force of the motor 7 can be transmitted to the second rotating rod 13 through the belt 12, thereby providing initial power for the preliminary crushing mechanism.

[0049] A pulverizing method of a material pulverizer for straw recycling and processing, the specific steps of the method are:

[0050] S1, material input: the straw to be crushed is fed into the crushing chamber of the crusher through the feed port;

[0051] S2, the straw after preliminary crushing is thrown by hammers at a high speed to the tooth plate and screen fixed inside the crushing chamber, and the straw is collided on the tooth plate and rubbed on the screen, so that the straw is further crushed. After multiple collisions and rubbings, the straw is gradually refined and screened through the screen holes;

[0052] S3, the crushed material after screening is discharged from the crusher through the discharge port.

[0053] The working principle and use process of the present invention:

[0054] First, the worker places the processed straw on the conveyor belt 102, starts the conveyor belt 102, and makes the conveyor belt 102 drive the straw to slowly approach the crushing machine box 1, and starts the motor 7. When the straw moves to the bottom of the L-shaped block 6, the output shaft of the motor 7 rotates to drive the gear 1 8 to rotate, and the gear 2 1001 and the rotating rod 10 are rotated through the meshing of the gear 1 8 and the gear 2 1001. The rotating rod 10 drives the two round blocks 9 to rotate in the elliptical ring 2. Since the rotating rod 10 is installed at the eccentric position of the round block 9, the rotation of the round block 9 will drive the elliptical ring 2 to rotate. The connecting block 3 and the L-shaped block 4 at the top of the elliptical ring 2 perform reciprocating motion in the vertical direction. At the same time, the round block 1 9 drives the auxiliary rod 3 1103, the auxiliary rod 2 1102, the main rod 11 and the auxiliary rod 1 1101 to move in sequence during the rotation. The auxiliary rod 1 1101 is hinged with the slider 5, so that the slider 5 performs reciprocating motion in the horizontal direction on the inner wall of the L-shaped block 4, and finally the L-shaped block 6 can perform a combined motion in the vertical and horizontal directions, so that when the L-shaped block 6 moves downward, the straw is first compacted, and when it moves left and right, the straw is pushed into the preliminary crushing mechanism;

[0055] Through the transmission connection of the belt 12, the output shaft of the motor 7 drives the corresponding rotating rod 2 13 to rotate, and the rotating rod 2 13 drives the corresponding gear 3 1301 to rotate. Through the meshing of gear 3 1301 and gear 4 14 and the meshing of gear 4 14 and gear 5 1401, the gears 3 1301 of the two groups of cutting components rotate in opposite directions. The two gears 3 1301 respectively drive the corresponding round block 2 1302 to rotate. Due to the eccentric setting with the round block 2 1302, the two round rods 15 respectively drive the two cutters 1501 to reciprocate in the vertical direction, and the movement directions of the two cutters 1501 are opposite. The straw entering the crushing box 1 is preliminarily cut by the two cutters 1501, so that the subsequent crushing is more detailed.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material crusher for straw recycling and processing, comprising a crusher box (1), characterized in that: One side of the crushing case (1) is fixedly installed with a bracket (101). A gear four (14) and a gear five (1401) are respectively rotatably installed on the front and back of the crushing case (1). The two gears four (14) are respectively meshed with the corresponding gears five (1401). A conveyor belt (102) is arranged inside the bracket (101), and a pushing mechanism and a primary crushing mechanism are arranged on the outer wall of the bracket (101). The pushing mechanism includes two pushing components, which are symmetrically arranged on the front and back of the bracket (101) respectively. Each pushing component includes two fixing bars (1011) fixedly installed on the outer wall of the bracket (101). A connecting block (3) is slidably installed on one side where the two fixing bars (1011) are close to each other. An oval ring (2) is fixedly installed at the bottom of the connecting block (3). A U-shaped block (4) is fixedly installed at the top of the connecting block (3). A slider (5) is slidably installed on the inner wall of the U-shaped block (4). A first round block (9) is arranged in the middle of the oval ring (2), and the first round block (9) is in contact with the inner wall of the oval ring (2). A cylinder (1013) is rotatably installed on the front of the crushing case (1). A main rod (11) is fixedly sleeved on the outer wall of the cylinder (1013). A first sub-rod (1101) and a second sub-rod (1102) are respectively hinged on the outer walls of the top and bottom of the main rod (11). The other end of the second sub-rod (1102) is hinged with a third sub-rod (1103). The third sub-rod (1103) is hinged with the front of the first round block (9). The first sub-rod (1101) is hinged with the slider (5).

2. The material crusher for straw recycling and processing according to claim 1 is characterized in that: The primary crushing mechanism includes two groups of cutting components. Each cutting component includes two second rotating rods (13) respectively rotatably installed on the outer walls of the front and back of the crushing case (1). One ends of the two second rotating rods (13) close to each other respectively extend into the crushing case (1). Gear three (1301) is fixedly sleeved on the outer walls of the two second rotating rods (13). Second round blocks (1302) are respectively fixedly installed at the ports of the two second rotating rods (13) close to each other. The two second round blocks (1302) are located inside the crushing case (1). The two gear three (1301) are located outside the crushing case (1). Round rods (15) are fixedly installed on one side where the two second round blocks (1302) are close to each other. A cutting knife (1501) is fixedly sleeved on the outer wall of the round rod (15). The gear three (1301) is meshed with the adjacent gear four (14).

3. The material crusher for straw recycling and processing according to claim 1 is characterized in that: The hinge connection point between the third sub-rod (1103) and the first round block (9) is not located at the geometric center of the first round block (9), but is eccentrically designed, that is, the hinge point does not coincide with the center of the first round block (9).

4. The material crusher for straw recycling and processing according to claim 1, characterized in that: On one side of the two fixed bars (1011) close to each other, grooves (1012) are respectively formed. On both sides of the connecting block (3), limiting bumps (301) are respectively and fixedly installed. The two limiting bumps (301) are respectively adapted to the corresponding grooves (1012) and are slidably connected to the corresponding grooves (1012).

5. The material crusher for straw recycling and processing according to claim 1, characterized in that: On one side of the two first round blocks (9) close to each other, first rotating rods (10) are respectively and fixedly installed. The first rotating rods (10) do not coincide with the centers of the first round blocks (9), and are eccentrically arranged. A second gear (1001) is fixedly sleeved on the outer wall of the first rotating rod (10). Both ends of the first rotating rod (10) penetrate through the bracket (101) and are rotatably connected to the bracket (101). The second gear (1001) is located inside the bracket (101).

6. The material crusher for straw recycling and processing according to claim 5, characterized in that: A motor (7) is fixedly installed on the front inner wall of the bracket (101). A first gear (8) is fixedly sleeved on the output shaft of the motor (7). The first gear (8) meshes with the second gear (1001).

7. The material crusher for straw recycling and processing according to claim 1, characterized in that: Chutes (401) are respectively formed on the front and back of the two U-shaped blocks (4). T-shaped columns (501) are respectively and fixedly installed on the front of the front slider (5) and the back of the rear slider (5). The two T-shaped columns (501) are respectively slidably connected to the corresponding chutes (401). On one side of the two sliders (5) close to each other, L-shaped blocks (6) are respectively and fixedly installed. Connecting rods are respectively and fixedly installed on the front and back of the L-shaped blocks (6). The two connecting rods are respectively slidably connected to the corresponding chutes (401).

8. The material crusher for straw recycling and processing according to claim 2, characterized in that: The round rod (15) is in an eccentric layout between the two second round blocks (1302), and its position does not coincide with the geometric center of the second round blocks (1302). The two second rotating rods (13) respectively coincide with the centers of the two second round blocks (1302).

9. The material crusher for straw recycling and processing according to claim 6, characterized in that: Pulley wheels are respectively and fixedly sleeved on the output shaft of the motor (7) and the outer wall of the corresponding second rotating rod (13). The two pulley wheels are传动连接 by a belt (12).

10. A crushing method for a material crusher for straw recycling and processing, applied to a material crusher for straw recycling and processing as claimed in claims 1 to 9, characterized in that: The specific steps of this method are as follows: S1, Material input: Feed the straw to be crushed into the crushing chamber of the crusher through the feed inlet; S2, The preliminarily crushed straw is thrown at a high speed by the hammer pieces towards the tooth plate and the sieve plate fixed inside the crushing chamber. The straw is collided on the tooth plate and rubbed on the sieve plate at the same time, so that the straw is further crushed. After multiple collisions and rubbings, the straw is gradually refined and screened through the sieve holes; S3, The crushed material after screening is discharged from the crusher through the discharge outlet. It should be noted that there is an incorrect expression "传动连接" in the original text, which should be "driven and connected" or other correct expressions. The above translation is based on the original text as much as possible.

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