straw crusher

Abstract

This utility model discloses a straw crusher, including a straw crusher body. A support frame is fixedly connected to the bottom of the straw crusher body. Four slots are formed at the bottom of the support frame, and each of the four slots contains a movable wheel. A lifting plate is fixedly connected to the top of the four movable wheels. Several fixed rods are fixedly connected to the inner wall of the lifting plate. A first roller is fitted onto each of the fixed rods, and the first roller is rotatably connected to the fixed rods. A movable block is set on the top of the first rollers, and a fixed block is fixedly connected to the top of the movable block. A driving mechanism is set on the fixed block, and fixed seats are fixedly connected to both sides of the fixed block. Second rollers are rotatably connected to the fixed seats, and a guide plate is set on one side of each second roller. This utility model eliminates the need for specialized machinery or extensive manual handling, significantly reducing transportation costs and difficulties, improving equipment mobility and transportation efficiency, and enhancing operational flexibility.

Description

Technical Field

[0001] This utility model relates to the field of straw crushing technology, and in particular to a straw crusher. Background Technology

[0002] Straw is the remaining plant parts after crop harvest, mainly referring to the stems, leaves, and ears of crops after maturity. For example, rice straw consists of rice stems and leaves, while corn straw consists of corn stems, leaves, and cobs. Straw is generally crushed using a shredder. The crushed straw is smaller in volume and lighter in weight, making it easier to store and transport, reducing space occupation, and lowering transportation costs. However, most existing straw shredders still have problems that need to be solved.

[0003] Most existing straw crushers are difficult to move and are generally transported by hand, requiring specialized machinery or manual labor. This requires a large amount of manpower, is labor-intensive, and may even pose safety hazards, increasing the labor and machinery costs of transportation. Therefore, it is urgent to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a straw crusher.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A straw crusher includes a straw crusher body. A support frame is fixedly connected to the bottom of the straw crusher body. Four slots are formed at the bottom of the support frame, and each slot contains a movable wheel. A common lifting plate is fixedly connected to the top of the four movable wheels. Several fixed rods are fixedly connected to the inner wall of the lifting plate. A first roller is fitted onto each of the fixed rods, and the first roller is rotatably connected to the fixed rod. A common movable block is positioned at the top of each of the first rollers. A fixed block is fixedly connected to the top of the movable block, and a driving mechanism is mounted on the fixed block. Fixed seats are fixedly connected to both sides of the fixed block, and second rollers are rotatably connected to the fixed seats. A guide plate is positioned on one side of each of the second rollers. Support plates are fixedly connected to the two guide plates on their opposite sides. Limit rods are fixedly connected to the two ends of the two support plates on their adjacent sides. Springs are fitted onto the limit rods, and limit seats are fitted onto the limit rods. The limiting rod is slidably connected to the limiting seat, and all four limiting seats are fixedly connected to the bracket. Because the supporting plate extends while allowing the bottom of the bracket to contact the ground, and retracts during the bracket's raising process, the supporting plate extends when the bottom of the bracket contacts the ground, increasing the support range and providing additional support force. When the bracket is raised, the moving wheels contact the ground for support, and the retracted supporting plate reduces the occupied area, facilitating transportation. This effectively solves the problem mentioned in the background art that most existing straw crushers are difficult to move, generally requiring transport by hand, which necessitates specialized machinery or manual handling, requiring a large amount of manpower, resulting in high labor intensity and even safety hazards, increasing labor and machinery costs. This technology achieves the goal of eliminating the need for specialized machinery or a large amount of manual handling, significantly reducing transportation costs and difficulty, improving equipment mobility and transportation efficiency, and enhancing operational flexibility.

[0006] As a further embodiment of this utility model, the driving mechanism includes a lead screw and nut, the lead screw and nut being inserted into a fixed block and fixedly connected to the fixed block, a driving lead screw being provided inside the lead screw and nut, the driving lead screw being adapted to the lead screw and nut, a motor being provided on one side of the driving lead screw, the output end of the motor being connected to the driving lead screw via a coupling, the motor being fixedly connected to a frame, and the frame being fixedly connected to a bracket.

[0007] As a further embodiment of this utility model, two second guide rods are provided on the fixing block, and the fixing block is slidably connected to the second guide rods.

[0008] As a further embodiment of this utility model, U-shaped frames are provided on both sides of the fixing block, and two second guide rods are fixedly connected to the two U-shaped frames, and the U-shaped frames are fixedly connected to the bracket.

[0009] As a further embodiment of this utility model, four first guide rods are provided on the lifting plate, and the lifting plate is slidably connected to the first guide rods.

[0010] As a further embodiment of this utility model, the top of the four first guide rods is fixedly connected to the same baffle, and the baffle is fixedly connected to the bracket.

[0011] The beneficial effects of this utility model are as follows: Because it employs a technique that allows the bottom of the support frame to contact the ground while extending the support plate, and retracts the support plate during the lifting process, the support plate extends when the bottom of the support frame contacts the ground, increasing the support range and providing additional support force. When the support frame is raised, it is supported by the moving wheels contacting the ground, and the retracted support plate reduces the occupied area, facilitating transportation. This effectively solves the problem mentioned in the background art that most existing straw crushers are difficult to move and are generally transported by hand, requiring specialized machinery or manual handling, which requires a large amount of manpower, resulting in high labor intensity and even safety hazards, and increasing labor and machinery costs for transportation. Thus, it achieves the technical effect of eliminating the need for specialized machinery or a large amount of manual handling, greatly reducing transportation costs and difficulties, improving equipment mobility and transportation efficiency, and enhancing operational flexibility. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the straw crusher proposed in this utility model; Figure 2 This is a partial structural schematic diagram of the straw crusher proposed in this utility model; Figure 3 This is a schematic diagram of the support structure of the straw crusher proposed in this utility model; Figure 4 This is a schematic diagram of the lifting plate of the straw crusher proposed in this utility model; Figure 5 This is a schematic cross-sectional view of the lifting plate of the straw crusher proposed in this utility model.

[0013] In the diagram: 1. Straw crusher body; 2. Support frame; 3. Moving wheel; 4. Lifting plate; 5. Fixed rod; 6. First roller; 7. Moving block; 8. Fixed block; 9. Drive mechanism; 901. Screw nut; 902. Drive screw; 903. Motor; 904. Frame; 10. Fixed seat; 11. Second roller; 12. Limit seat; 13. Limit rod; 14. Spring; 15. Support plate; 16. First guide rod; 17. Baffle; 18. Second guide rod; 19. Guide plate; 20. U-shaped frame. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-5 The straw crusher includes a straw crusher body 1. A support 2 is fixedly connected to the bottom of the straw crusher body 1. Four slots are provided at the bottom of the support 2, and each of the four slots contains a movable wheel 3. A lifting plate 4 is fixedly connected to the top of the four movable wheels 3. Several fixed rods 5 are fixedly connected to the inner wall of the lifting plate 4. A first roller 6 is fitted onto each of the fixed rods 5. The first roller 6 is rotatably connected to the fixed rods 5. A movable block 7 is provided at the top of the first rollers 6. A fixed block 8 is fixedly connected to the top of the movable block 7. A drive mechanism 9 is provided on the fixed block 8. Fixed seats 10 are fixedly connected to both sides of the fixed block 8. Second rollers 11 are rotatably connected to the fixed seats 10. A guide plate 19 is provided on one side of the second roller 11. Support plates 15 are fixedly connected to the two guide plates 19 on their opposite sides. Limiting rods 13 are fixedly connected to the two ends of the two support plates 15 on their adjacent sides. Springs 14 are fitted onto the limiting rods 13. The four limit seats 12 are slidably connected to the limit seats 12, and the four limit seats 12 are all fixedly connected to the bracket 2. Because the support plate extends while allowing the bottom of the bracket to contact the ground, and retracts during the lifting process, the support plate extends when the bottom of the bracket contacts the ground, increasing the support range and providing additional support force. When the bracket is lifted, the moving wheels contact the ground for support, and the retracted support plate reduces the occupied area, facilitating transportation. This effectively solves the problem mentioned in the background art that most existing straw crushers are difficult to move, generally requiring manual transport, specialized machinery, or a large amount of manpower, resulting in high labor intensity and even safety hazards, increasing labor and machinery costs. This technology achieves the goal of eliminating the need for specialized machinery or a large amount of manual transport, significantly reducing transportation costs and difficulty, improving equipment mobility and transportation efficiency, and enhancing operational flexibility.

[0016] In this embodiment, the drive mechanism 9 includes a lead screw nut 901, which is inserted through the fixing block 8 and fixedly connected to the fixing block 8. A drive lead screw 902 is provided inside the lead screw nut 901, which is adapted to the lead screw nut 901. A motor 903 is provided on one side of the drive lead screw 902. The output end of the motor 903 is connected to the drive lead screw 902 through a coupling. The motor 903 is fixedly connected to a frame 904, and the frame 904 is fixedly connected to a bracket 2.

[0017] In this embodiment, two second guide rods 18 are provided on the fixed block 8. The fixed block 8 is slidably connected to the second guide rods 18. When the fixed block 8 moves, it will move along the second guide rods 18, thereby ensuring the stability of the fixed block 8 when it moves, so that the moving block 7 can move in a straight line stably.

[0018] In this embodiment, U-shaped frames 20 are provided on both sides of the fixing block 8, and two second guide rods 18 are fixedly connected to the two U-shaped frames 20, and the U-shaped frames 20 are fixedly connected to the bracket 2.

[0019] In this embodiment, four first guide rods 16 are provided on the lifting plate 4. The lifting plate 4 is slidably connected to the first guide rods 16. When the lifting plate 4 moves up and down, it will move along the first guide rods 16 to ensure the stability of the lifting plate 4 when it moves.

[0020] In this embodiment, the top of the four first guide rods 16 is fixedly connected to the same baffle 17, and the baffle 17 is fixedly connected to the bracket 2. The receiving box is placed on the baffle 17 to receive the material, and some of the splashed straw will fall on the baffle 17 to avoid contact with the parts.

[0021] Working principle: During use, the straw crusher body 1 crushes the straw. The receiving box is placed on the baffle 17. The crushed straw from the crusher body 1 falls into the receiving box and is collected. When the device needs to be moved, an external power supply is used. Starting the motor 903 will cause the output of the motor 903 to drive the coupling to rotate. The coupling will then drive the drive screw 902 to rotate. The drive screw 902 will then drive the screw nut 901 to move. The screw nut 901 will then drive the fixed block 8 to move along the second guide rod 18. The fixed block 8 will drive the movable block 7 to move, and the inclined surface of the movable block 7 will contact the first roller 6. Continuing to move the movable block 7 will cause it to rise along the first roller 6. The first roller 6 will then drive the fixed block 8 to rise, which in turn will drive the U-shaped frame 20 to rise. The U-shaped frame 20 will then drive the lifting plate 4 to rise, which in turn will drive the support 2 to rise. The support 2 will then drive the straw crusher body 1 to rise, allowing the bottom of the straw crusher body 1 to leave the ground and be supported by the movable wheels 3. When the bottom of block 7 contacts the first roller 6, the device can be moved. When the device is moved to a suitable position, the output end of motor 903 is rotated in the opposite direction, which moves block 7 to the initial position. Under the influence of gravity, bracket 2 will descend until it contacts the ground. The output end of motor 903 rotates in the opposite direction, which moves fixed block 8 in the opposite direction. Fixed block 8 will drive fixed seat 10 to move. Fixed seat 10 will drive second roller 11 to move along the inclined surface of guide plate 19. Second roller 11 will squeeze guide plate 19 to make the two guide plates 19 move away from each other. Guide plate 19 will drive support plate 15 to move. The two support plates 15 move away from each other to provide auxiliary support, increase the support range, and improve the stability of the device. When support plate 15 moves, it will drive limit rod 13 to move along limit seat 12 to ensure the stability of support plate 15 when it moves. The movement of limit rod 13 will squeeze spring 14 to compress spring 14. When second roller 11 does not squeeze guide plate 19, the compressed spring 14 will extend, which will allow the two support plates 15 to move closer to each other and return to the initial position.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A straw pulverizer comprising a straw pulverizer body (1), characterized in that, The bottom of the straw crusher body (1) is fixedly connected to a support (2). The bottom of the support (2) has four slots, and each of the four slots is equipped with a movable wheel (3). The top of the four movable wheels (3) is fixedly connected to the same lifting plate (4). The inner wall of the lifting plate (4) is fixedly connected to several fixed rods (5). The several fixed rods (5) are fitted with the same first roller (6). The first roller (6) is rotatably connected to the fixed rod (5). The top of the several first rollers (6) is equipped with the same movable block (7). The top of the movable block (7) is fixedly connected to a fixed block (8). The fixed block (8) is equipped with a drive mechanism. Mechanism (9), both sides of the fixed block (8) are fixedly connected to fixed seats (10), the fixed seats (10) are rotatably connected to second rollers (11), one side of the second rollers (11) is provided with guide plates (19), the two guide plates (19) are fixedly connected to support plates (15) on the side away from each other, the two ends of the two support plates (15) are fixedly connected to limit rods (13) on the side close to each other, the limit rods (13) are sleeved with springs (14), the limit rods (13) are sleeved with limit seats (12), the limit rods (13) are slidably connected to the limit seats (12), and the four limit seats (12) are fixedly connected to brackets (2).

2. The straw pulverizer according to claim 1, characterized in that, The drive mechanism (9) includes a lead screw nut (901), which is inserted through a fixed block (8) and is fixedly connected to the fixed block (8). A drive screw (902) is provided inside the lead screw nut (901), which is adapted to the lead screw nut (901). A motor (903) is provided on one side of the drive screw (902), and the output end of the motor (903) is connected to the drive screw (902) through a coupling. The motor (903) is fixedly connected to a frame (904), and the frame (904) is fixedly connected to a bracket (2).

3. The straw pulverizer according to claim 2, characterized in that, Two second guide rods (18) are provided on the fixed block (8), and the fixed block (8) is slidably connected to the second guide rods (18).

4. The straw pulverizer according to claim 3, characterized in that, Both sides of the fixing block (8) are provided with U-shaped frames (20), and the two second guide rods (18) are fixedly connected to the two U-shaped frames (20). The U-shaped frames (20) are fixedly connected to the bracket (2).

5. The straw pulverizer according to claim 1, characterized by The lifting plate (4) is provided with four first guide rods (16), and the lifting plate (4) is slidably connected to the first guide rods (16).

6. The straw crusher according to claim 5, characterized in that, The top of each of the four first guide rods (16) is fixedly connected to the same baffle (17), which is fixedly connected to the bracket (2).

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