Efficient crushing equipment for oilseed rape straws

Abstract

The utility model discloses an efficient crushing device for rape straw, and relates to the technical field of straw crushing, the efficient crushing device comprises a shell, the upper surface of the shell is fixedly connected with a mounting rack, the shell is internally provided with a rotating shaft, and the position, close to the rotating shaft, of the interior of the shell is fixedly connected with a second separating cylinder; a plurality of separation holes are formed in the outer wall of the second separation cylinder, and a plurality of discharging ports are formed in the position, close to the fan blades, of one end of the second separation cylinder. According to the efficient rape straw smashing equipment, smashed straw holes are filled with soil, negative pressure is generated in the air guide cylinder, smashed straw in the first separation cylinder is sucked into the second separation cylinder through the separation holes, the soil in the first separation cylinder falls back to the ground through the first screening holes, and then the smashed straw is separated from the second separation cylinder. Cutting teeth further smash the straw blocking the separation holes, soil in the second separation barrel falls into the first separation barrel through the separation holes, and the effect of separating the straw from the soil is achieved.

Description

Technical Field

[0001] This utility model relates to the field of straw crushing technology, and in particular to a high-efficiency crushing device for rapeseed straw. Background Technology

[0002] After rapeseed harvesting, the remaining straw needs to be disposed of promptly. Failure to do so will trigger a series of chain reactions: mountains of straw will severely impair soil aeration and hinder natural water infiltration, posing a challenge to normal crop growth. Furthermore, straw left untreated for extended periods can become a breeding ground for pests and diseases, threatening soil health. Therefore, straw disposal not only improves soil structure but also facilitates cultivation the following year, ensuring smooth agricultural production. Currently, mechanical shredding equipment is used to process straw. Typically, a shredder is connected to the front of a tractor, and a belt transmits power from the tractor's flywheel to the shredder, driving its operation.

[0003] However, when agricultural crushers crush rapeseed straw, soil often gets carried into the crusher due to its adhesion. This process can easily lead to increased wear and tear on the internal structure of the crusher, thus affecting the machine's service life. Soil mixed into the crushed straw may reduce the crushing effect, affecting subsequent fertilization and soil improvement, and failing to meet actual needs. Utility Model Content

[0004] This utility model discloses a high-efficiency rapeseed straw crushing device, which aims to solve the technical problem that when agricultural crushers crush straw, soil often adheres to the ground and is brought into the crusher. This process can easily lead to increased wear inside the crusher, thereby affecting the service life of the machine. Soil mixed into the crushed straw may reduce the crushing effect, affect subsequent fertilization and soil improvement, and even cause a decline in soil quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency rapeseed straw crushing device includes a shell, a mounting frame fixedly connected to the upper surface of the shell, a rotating shaft inside the shell, a second separating cylinder fixedly connected to the shell near the rotating shaft, multiple separation holes on the outer wall of the second separating cylinder, multiple discharge ports near the fan blades at one end of the second separating cylinder, a first separating cylinder fixedly connected to the shell near the second separating cylinder, multiple first screening holes on the bottom surface of the first separating cylinder, multiple feed ports on one side surface of the first separating cylinder, a sliding plate slidably connected to the bottom of the first separating cylinder, a rack fixedly connected to one end of the sliding plate, a protective shell fixedly connected to one side of the shell near the rack, a mounting rod rotatably connected through the inner wall of the protective shell, a torsion spring sleeved on one end of the mounting rod, a gear near the torsion spring at one end of the mounting rod, a connecting rod fixedly connected to one side of the gear, a guide wheel rotatably connected to the bottom end of the connecting rod, and multiple cutting teeth on the outer wall of the rotating shaft.

[0007] One end of the rotating shaft is fixedly connected to a power wheel, and a guide tube is fixedly connected to one side of the outer casing near the power wheel. A fan blade is provided at one end of the rotating shaft near the connection between the guide tube and the outer casing.

[0008] The bottom surface of the slide plate is provided with a plurality of second screen holes, the positions of which correspond one-to-one with the positions of a plurality of first screening holes at the bottom of the first separation cylinder.

[0009] The gear meshes with the rack, and the rotating shaft is rotatably connected to the second separating cylinder. One end of the rotating shaft passes through the outer wall of the air guide cylinder and extends to the outside of the air guide cylinder.

[0010] The rotating shaft is located inside the second separation cylinder, which is located inside the first separation cylinder, and the diameter of the separation hole is smaller than the diameter of the first screening hole.

[0011] In a preferred embodiment, a first pulley is fixedly connected to one end of the rotating shaft near the gear, and a crushing roller is rotatably connected to the inside of the outer casing near the first separating cylinder. Multiple crushing teeth are rotatably connected to the outer surface of the crushing roller.

[0012] One end of the crushing roller is fixedly connected to a second pulley, and a transmission belt is provided between the second pulley and the first pulley.

[0013] As can be seen from the above, the rapeseed straw high-efficiency crushing equipment provided by this utility model has the following technical effects.

[0014] Firstly, the crushed straw is thrown into the first separating cylinder through multiple feed inlets. The crushed straw contains soil. As the rotating shaft drives the fan blades to rotate, a negative pressure is generated inside the air guide cylinder, which draws the crushed straw from the first separating cylinder into the second separating cylinder through the separation holes. The soil inside the first separating cylinder falls back to the ground through the first screening hole. The straw inside the second separating cylinder may block the separation holes when it enters. Through the rotation of multiple cutting teeth, the straw blocking the separation holes is further crushed. The crushed straw enters the second separating cylinder through the discharge port and is discharged through the second separating cylinder. The soil inside the second separating cylinder falls into the first separating cylinder through the separation holes, thus achieving the effect of separating straw and soil.

[0015] Secondly, when the ground is uneven, the guide wheel comes into contact with the ground soil, the guide wheel squeezes the connecting rod, drives the gear to twist the mounting rod, drives the rack and slide plate to slide, so that the second screen hole on the slide plate is misaligned with the first screen hole, so that the slide plate blocks multiple first screen holes and prevents ground soil from entering the first separation cylinder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a high-efficiency rapeseed straw crushing device proposed in this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of a high-efficiency rapeseed straw crushing device proposed in this utility model.

[0018] Figure 3 This is a partial structural schematic diagram of a high-efficiency rapeseed straw crushing device proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of a high-efficiency rapeseed straw crushing device proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the discharge port structure of a high-efficiency rapeseed straw crushing device proposed in this utility model.

[0021] In the attached diagram: 1. Outer shell; 2. Protective shell; 3. Guide wheel; 4. First pulley; 5. Transmission belt; 6. Second pulley; 7. Power wheel; 8. Air guide cylinder; 9. Mounting frame; 10. First separation cylinder; 11. Rotating shaft; 12. Crushing teeth; 13. Crushing roller; 14. Fan blade; 15. Slide plate; 16. Cutting teeth; 17. Separation hole; 18. Second separation cylinder; 19. First screening hole; 20. Connecting rod; 21. Rack; 22. Torsion spring; 23. Mounting rod; 24. Gear; 25. Feed inlet; 26. Discharge outlet. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The rapeseed straw high-efficiency crushing equipment disclosed in this utility model is mainly used in agricultural crushers. When crushing rapeseed straw, soil often adheres to the ground and is brought into the crusher. This process can easily lead to increased wear inside the crusher, thereby affecting the service life of the machine. Soil mixed into the crushed straw may reduce the crushing effect, affect subsequent fertilization and soil improvement, and even cause a decline in soil quality.

[0025] Reference Figure 1 — Figure 5 A high-efficiency rapeseed straw crushing device includes a shell 1, with a mounting frame 9 fixedly connected to the upper surface of the shell 1. A rotating shaft 11 is disposed inside the shell 1. A second separating cylinder 18 is fixedly connected inside the shell 1 near the rotating shaft 11. Multiple separation holes 17 are provided on the outer wall of the second separating cylinder 18. Multiple discharge ports 26 are provided at one end of the second separating cylinder 18 near the fan blade 14. A first separating cylinder 10 is fixedly connected inside the shell 1 near the second separating cylinder 18. Multiple first screening holes 19 are provided on the bottom surface of the first separating cylinder 10. Multiple feed ports 25 are provided on one side surface. A slide plate 15 is slidably connected to the bottom of the first separating cylinder 10. A rack 21 is fixedly connected to one end of the slide plate 15. A protective shell 2 is fixedly connected to one side of the outer shell 1 near the rack 21. An installation rod 23 is rotatably connected through the inner wall of the protective shell 2. A torsion spring 22 is sleeved on one end of the installation rod 23. A gear 24 is provided at one end of the installation rod 23 near the torsion spring 22. A connecting rod 20 is fixedly connected to one side of the gear 24. A guide wheel 3 is rotatably connected to the bottom end of the connecting rod 20. Multiple cutting teeth 16 are provided on the outer wall of the rotating shaft 11.

[0026] One end of the rotating shaft 11 is fixedly connected to a power wheel 7, and a guide tube 8 is fixedly connected to one side of the outer casing 1 near the position of the power wheel 7. A fan blade 14 is provided at one end of the rotating shaft 11 near the connection between the guide tube 8 and the outer casing 1.

[0027] The bottom surface of the slide plate 15 is provided with a plurality of second screen holes, the positions of which correspond one-to-one with the positions of the plurality of first screening holes 19 at the bottom of the first separation cylinder 10.

[0028] Gear 24 meshes with rack 21, and rotating shaft 11 is rotatably connected to second separator 18. One end of rotating shaft 11 passes through the outer wall of air guide cylinder 8 and extends to the outside of air guide cylinder 8.

[0029] The rotating shaft 11 is located inside the second separating cylinder 18, which is located inside the first separating cylinder 10. The diameter of the separating hole 17 is smaller than the diameter of the first screening hole 19.

[0030] In this embodiment, the outer casing 1 is connected to the front end of the tractor via the mounting bracket 9. An auxiliary belt connects the power wheel 7 to the tractor's rotor. The tractor's rotor transmits power to the power wheel 7 via the auxiliary belt, causing the power wheel 7 to rotate. The crop straw has been harvested and is piled on the ground. The tractor drives the outer casing 1 forward, causing the rotating shaft 11 to rotate via the power wheel 7. After the straw on the ground is crushed, it is thrown into the first separating cylinder 10 through multiple feed inlets 25. The crushed straw contains soil. The rotation of the rotating shaft 11 drives the fan blades 14 to rotate, causing the air guide cylinder 8 to... A negative pressure is generated inside, which draws the crushed straw inside the first separating cylinder 10 into the second separating cylinder 18 through the separating hole 17. The soil inside the first separating cylinder 10 falls back to the ground through the first screening hole 19. The straw inside the second separating cylinder 18 may block the separating hole 17 when it enters. The straw blocking the separating hole 17 is further crushed by the rotation of multiple cutting teeth 16. The crushed straw enters the second separating cylinder 18 through the discharge port 26 and is discharged through the second separating cylinder 18. The soil inside the second separating cylinder 18 falls into the first separating cylinder 10 through the separating hole 17, thus achieving the effect of separating straw and soil.

[0031] Furthermore, when the ground is uneven, the guide wheel 3 comes into contact with the ground soil, the guide wheel 3 squeezes the connecting rod 20, drives the gear 24 to twist the mounting rod 23, drives the rack 21 and the slide plate 15 to slide, so that the second screen hole on the slide plate 15 is misaligned with the first screen hole 19, so that the slide plate 15 blocks multiple first screen holes 19, preventing ground soil from entering the interior of the first separation cylinder 10.

[0032] Reference Figure 1 , Figure 2 , Figure 3 In a preferred embodiment, a first pulley 4 is fixedly connected to one end of the rotating shaft 11 near the gear 24, and a crushing roller 13 is rotatably connected to the inside of the outer casing 1 near the first separating cylinder 10. A plurality of crushing teeth 12 are rotatably connected to the outer surface of the crushing roller 13.

[0033] A second pulley 6 is fixedly connected to one end of the crushing roller 13, and a transmission belt 5 is provided between the second pulley 6 and the first pulley 4.

[0034] In this embodiment, the rotating shaft 11 drives the transmission belt 5 and the second pulley 6 to rotate, thereby driving the crushing roller 13 and multiple crushing teeth 12 to rotate, crushing the straw on the ground.

[0035] Working principle: In use, the outer casing 1 is connected to the front end of the tractor via the mounting bracket 9. The power wheel 7 is connected to the tractor's runner via an auxiliary belt. The tractor's runner transmits power to the power wheel 7 via the auxiliary belt, causing the power wheel 7 to rotate. The rapeseed straw has been harvested and is piled on the ground. The tractor drives the outer casing 1 forward, which in turn drives the rotating shaft 11 to rotate via the power wheel 7. The rotating shaft 11 drives the transmission belt 5 and the second pulley 6 to rotate, thereby driving the crushing roller 13 and multiple crushing teeth 12 to rotate, crushing the straw on the ground. After the straw on the ground is crushed, it is thrown into the first separating cylinder 10 through multiple feed inlets 25. The crushed straw holes contain soil. As the rotating shaft 11 rotates, it drives the fan blades 14 to rotate, creating a negative pressure inside the air guide cylinder 8, which draws the crushed straw inside the first separating cylinder 10 into the separating holes 17. Inside the second separating cylinder 18, the soil that has passed through the first separating cylinder 10 falls back to the ground through the first screening hole 19. The straw inside the second separating cylinder 18 may block the separation hole 17 when it enters. Through the rotation of multiple cutting teeth 16, the straw blocking the separation hole 17 is further crushed. The crushed straw enters the second separating cylinder 18 through the discharge port 26 and is discharged through the second separating cylinder 18. The soil inside the second separating cylinder 18 falls into the first separating cylinder 10 through the separation hole 17, which achieves the effect of separating straw and soil. When the ground is uneven, the guide wheel 3 contacts the ground soil. The guide wheel 3 squeezes the connecting rod 20, drives the gear 24 to twist the mounting rod 23, and drives the rack 21 and the slide plate 15 to slide, so that the second screening hole on the slide plate 15 is misaligned with the first screening hole 19, so that the slide plate 15 blocks multiple first screening holes 19 and prevents ground soil from entering the first separating cylinder 10.

[0036] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A high-efficiency rapeseed straw crushing device, comprising a shell (1), characterized in that, A mounting bracket (9) is fixedly connected to the upper surface of the outer shell (1). A rotating shaft (11) is provided inside the outer shell (1). A second separating cylinder (18) is fixedly connected inside the outer shell (1) near the rotating shaft (11). Multiple separating holes (17) are provided on the outer wall of the second separating cylinder (18). Multiple discharge ports (26) are provided at one end of the second separating cylinder (18) near the fan blade (14). A first separating cylinder (10) is fixedly connected inside the outer shell (1) near the second separating cylinder (18). Multiple first screening holes (19) are provided on the bottom surface of the first separating cylinder (10). Multiple feed ports (26) are provided on one side surface of the first separating cylinder (10). 5) A sliding plate (15) is slidably connected to the bottom of the first separating cylinder (10). A rack (21) is fixedly connected to one end of the sliding plate (15). A protective shell (2) is fixedly connected to one side of the outer shell (1) near the rack (21). An installation rod (23) is rotatably connected through the inner wall of the protective shell (2). A torsion spring (22) is sleeved on one end of the installation rod (23). A gear (24) is provided on one end of the installation rod (23) near the torsion spring (22). A connecting rod (20) is fixedly connected to one side of the gear (24). A guide wheel (3) is rotatably connected to the bottom end of the connecting rod (20). Multiple cutting teeth (16) are provided on the outer wall of the rotating shaft (11).

2. The high-efficiency rapeseed straw crushing equipment according to claim 1, characterized in that, One end of the rotating shaft (11) is fixedly connected to a power wheel (7), and a guide cylinder (8) is fixedly connected to one side of the outer shell (1) near the position of the power wheel (7). A fan blade (14) is provided at one end of the rotating shaft (11) near the connection between the guide cylinder (8) and the outer shell (1).

3. The high-efficiency rapeseed straw crushing equipment according to claim 2, characterized in that, The bottom surface of the slide plate (15) is provided with a plurality of second screen holes, the positions of which correspond one-to-one with the positions of a plurality of first screening holes (19) at the bottom of the first separation cylinder (10).

4. The high-efficiency rapeseed straw crushing equipment according to claim 3, characterized in that, The gear (24) meshes with the rack (21), and the rotating shaft (11) is rotatably connected to the second separating cylinder (18). One end of the rotating shaft (11) passes through the outer wall of the air guide cylinder (8) and extends to the outside of the air guide cylinder (8).

5. The high-efficiency rapeseed straw crushing equipment according to claim 4, characterized in that, The rotating shaft (11) is located inside the second separating cylinder (18), which is located inside the first separating cylinder (10). The diameter of the separating hole (17) is smaller than the diameter of the first screening hole (19).

6. The high-efficiency rapeseed straw crushing equipment according to claim 5, characterized in that, One end of the rotating shaft (11) is fixedly connected to a first pulley (4) near the gear (24). A crushing roller (13) is rotatably connected to the inside of the outer shell (1) near the first separating cylinder (10). Multiple crushing teeth (12) are rotatably connected to the outer surface of the crushing roller (13).

7. The high-efficiency rapeseed straw crushing equipment according to claim 6, characterized in that, One end of the crushing roller (13) is fixedly connected to a second pulley (6), and a transmission belt is provided between the second pulley (6) and the first pulley (4).

Images