Rapeseed stalk high-efficiency crushing and field returning device

By using a modular connection structure and gear meshing transmission design, the problems of inconvenient maintenance and insufficient support stability of the crushing components are solved, achieving efficient maintenance and stable support, and improving the efficiency and safety of the equipment.

CN224482188UActive Publication Date: 2026-07-14

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-08-21
Publication Date
2026-07-14

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Abstract

The utility model relates to the technical field of pulverization and returning to field device, concretely refers to a kind of rapeseed straw high-efficiency pulverization and returning to field device. Including tractor, the one side of tractor is connected with pulverization and returning to field assembly, the pulverization and returning to field assembly includes the connecting clamp of setting in the one side of tractor, connecting frame is hingedly arranged in the connecting clamp, the one side of connecting frame is rotatably connected with gyro wheel, the connecting frame is provided with pulverization assembly and arc baffle, the one side of connecting clamp is fixed with motor one for driving connecting frame rotation;The pulverization assembly is composed of connecting rod, several pieces of pulverization blade, two connecting structures, motor two, and the connecting rod is connected between the two connecting structures;The bottom of tractor is provided with adjustable support assembly, and support assembly supports pulverization and returning to field assembly.The utility model provides a kind of rapeseed straw high-efficiency pulverization and returning to field device, which is convenient to overhaul, and has sufficient support stability when idle.
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Description

Technical Field

[0001] This utility model relates to the technical field of crushing and returning devices, specifically to a high-efficiency crushing and returning device for rapeseed straw. Background Technology

[0002] Rapeseed straw, a major byproduct of agricultural production, plays a vital role in improving soil structure and increasing organic matter content through efficient crushing and returning it to the field. Currently, various rapeseed straw crushing and returning devices are available on the market, typically tractor-trailed, using crushing components to shred the straw and evenly distribute it in the field. However, existing devices still have the following shortcomings in practical use:

[0003] 1. Existing crushing components usually adopt a fixed connection structure. If the crushing blades are worn or damaged, the entire device must be disassembled or complex operations must be performed for repair. It is not possible to directly remove the connecting rod and blades separately, resulting in low maintenance efficiency and affecting the progress of field operations.

[0004] 2. When the existing crushing and returning components are not in operation, they are usually suspended in the air so as not to affect the movement of the device on the normal road. They lack a reliable support structure and are prone to shaking or tipping due to external forces (such as wind or uneven ground). This may not only damage the equipment, but also pose a safety hazard.

[0005] Therefore, based on this, we studied and improved the existing structure and proposed a high-efficiency rapeseed straw crushing and returning device. Utility Model Content

[0006] The technical problem this invention aims to solve is that the crushing component is inconvenient to maintain and has insufficient support stability when idle.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a rapeseed straw high-efficiency crushing and returning device, including a tractor, a crushing and returning component connected to one side of the tractor, the crushing and returning component including a connecting clamp disposed on one side of the tractor, a connecting frame hinged in the connecting clamp, a roller rotatably connected to one side of the connecting frame, a crushing component and an arc-shaped baffle disposed in the connecting frame, and a motor for driving the connecting frame to rotate fixedly disposed on one side of the connecting clamp;

[0008] The crushing assembly consists of a connecting rod, several crushing blades, two connecting structures, and a motor, with the connecting rod connecting the two connecting structures.

[0009] The tractor is equipped with an adjustable support assembly at its bottom, which supports the pulverizing and returning-to-field assembly.

[0010] As a further embodiment of this utility model: the connecting structure includes a connecting groove rotatably disposed in the connecting frame, a limiting plate hinged to the top of the connecting groove, a connecting rod movably placed in the connecting groove, and the connecting groove, the connecting rod, and the limiting plate are connected by bolts and nuts, with the bolts sequentially moving through the connecting groove, the connecting rod, and the limiting plate, and the nuts threaded onto the bolts.

[0011] As a further embodiment of this utility model: several crushing blades are evenly distributed and fixedly mounted on the connecting rod.

[0012] As a further embodiment of this utility model, the second motor drives the connecting groove of one of the connecting structures to rotate.

[0013] As a further embodiment of this utility model: the support assembly includes a support plate that is slidably positioned at the bottom of the tractor and two receiving plates that are fixedly positioned at the bottom of the tractor. A gear is rotatably positioned between the two receiving plates, and the top of the support plate is provided with a number of toothed grooves that mesh with the gear. A motor for driving the gear to rotate is fixedly positioned on one side of one of the receiving plates.

[0014] As a further embodiment of this utility model: the support plate is slid to the bottom of the connecting clamp and the connecting frame by the rotation of the gear.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] 1. This utility model adopts a modular connection structure design. The connecting rod is fixed to the connection structure by bolts and nuts. During maintenance, the connecting rod and crushing blade can be quickly disassembled simply by loosening the bolts, without the need for an overall disassembly device, which greatly improves maintenance efficiency.

[0017] The hinged design of the connecting groove and the limiting plate makes the installation and disassembly of the connecting rod more convenient, reduces the difficulty of operation, and is especially suitable for rapid field repairs.

[0018] 2. The support component of this utility model adopts gear and tooth meshing transmission, and the extension and retraction of the support plate are precisely controlled by the motor to ensure that the crushing and returning component can be stably supported when not in use, and to avoid the equipment shaking or tipping over due to external forces.

[0019] The support plate can slide to the bottom of the connecting clamp and the connecting frame to form multi-point support, enhance overall stability, and extend the service life of the equipment. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the high-efficiency rapeseed straw crushing and returning device of this utility model. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the overall structure of the high-efficiency rapeseed straw crushing and returning device of this utility model. Figure 2 .

[0023] Figure 3 This is a schematic diagram of the crushing and returning component of a high-efficiency rapeseed straw crushing and returning device according to this utility model.

[0024] Figure 4 This is a partially enlarged schematic diagram of the efficient rapeseed straw crushing and returning device of this utility model. Figure 1 .

[0025] Figure 5 This is a partially enlarged schematic diagram of the efficient rapeseed straw crushing and returning device of this utility model. Figure 2 .

[0026] In the attached image:

[0027] 1. Tractor; 2. Crushing and returning to the field assembly; 3. Crushing assembly; 4. Support assembly; 201. Connecting clamp; 202. Connecting frame; 203. Roller; 204. Arc-shaped baffle; 205. Motor 1; 301. Connecting rod; 302. Crushing blade; 303. Motor 2; 304. Connecting groove; 305. Limiting plate; 306. Bolt; 307. Nut; 401. Support plate; 402. Receiving plate; 403. Gear; 404. Tooth groove; 405. Motor 3. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-3A high-efficiency rapeseed straw crushing and returning device includes a tractor 1. A crushing and returning component 2 is connected to one side of the tractor 1. The crushing and returning component 2 includes a connecting clamp 201 on one side of the tractor 1. A connecting frame 202 is hinged inside the connecting clamp 201. The connecting frame 202 is mounted on the connecting clamp 201 by a hinge and can rotate around the hinge point to adapt to different operating needs. A roller 203 is rotatably connected to one side of the connecting frame 202. The roller 203 is used to assist in support and movement during operation, reducing the load on the tractor 1. A crushing component 3 and an arc-shaped baffle 204 are set inside the connecting frame 202. The arc-shaped baffle 204 is used to prevent the crushed straw from splashing and ensure that the straw is returned to the field evenly. A motor 205 is fixedly installed on one side of the connecting clamp 201 to drive the connecting frame 202 to rotate. The motor 205 is used to drive the connecting frame 202 to rotate and adjust the working angle of the crushing component 3. The crushing and returning component 2 is hinged to the tractor 1 through the connecting clamp 201, so that the entire component can adjust its working angle within a certain range.

[0030] Please see Figure 1-4 The crushing component 3 consists of a connecting rod 301, several crushing blades 302, two connecting structures, and a second motor 303. The crushing blades 302 are evenly distributed and fixed on the connecting rod 301, and are used for high-speed rotation to cut straw. The connecting rod 301 connects the two connecting structures. The connecting structure includes a connecting groove 304 rotatably mounted within a connecting frame 202. A limiting plate 305 is hinged to the top of the connecting groove 304. The connecting rod 301 is movably placed within the connecting groove 304. The connecting groove 304, connecting rod 301, and limiting plate 305 are connected by bolts 306 and nuts 307, with the bolts 306 sequentially passing through the connecting groove 304, connecting rod 301, and limiting plate 305. The nuts 307 are threaded onto the bolts 306. The second motor 303 drives the connecting groove 304 of one of the connecting structures to rotate. The rotation of the connecting groove 304 by the second motor 303 drives the connecting rod 301 and the crushing blades 302 to rotate at high speed, thus achieving straw crushing. Rotate the nut 307 to separate the nut 307 from the bolt 306, so that the bolt 306 can be removed from the connecting groove 304, the connecting rod 301, and the limiting plate 305. Then, rotate the limiting plate 305 to remove the connecting rod 301 from the connecting groove 304, thereby disassembling the connecting rod 301 and the crushing blade 302.

[0031] Please see Figure 2 , Figure 5The tractor 1 has an adjustable support assembly 4 at its bottom, which supports the pulverizing and returning-to-field assembly 2. The support assembly 4 includes a support plate 401 that is slidably positioned at the bottom of the tractor 1, and two receiving plates 402 that are fixedly positioned at the bottom of the tractor 1. A gear 403 is rotatably mounted between the two receiving plates 402, and the top of the support plate 401 has several toothed grooves 404 that mesh with the gear 403. A motor 405 that drives the gear 403 to rotate is fixedly mounted on one side of one of the receiving plates 402. The support plate 401 slides to the bottom of the connecting clamp 201 and the connecting frame 202 under the control of the rotation of the gear 403. The gear 403 is driven to rotate by the motor 405, which moves the support plate 401 back and forth.

[0032] The working principle of this utility model:

[0033] When the crushing blade 302 needs maintenance or replacement, the operating steps are as follows: Use a tool to loosen the nut 307 so that the bolt 306 is no longer tightened around the connecting groove 304, connecting rod 301, and limiting plate 305. Pull the connecting rod 301 out of the connecting groove 304 to remove the entire crushing assembly 3. After replacing or repairing the crushing blade 302, reinsert the connecting rod 301 into the connecting groove 304 and secure it with the bolt 306 and nut 307. This design makes the maintenance of the crushing assembly more convenient, eliminating the need to disassemble the entire device and greatly improving field operation efficiency.

[0034] When the pulverizing and returning-to-field component 2 is not in use, it can be stably supported by the support component 4. The operating steps are as follows: Start the motor 405 to control the gear 403 to rotate, causing the support plate 401 to slide outward along the tooth groove 404. Move the support plate 401 to the bottom of the connecting clamp 201 and the connecting frame 202 to form a stable support. Turn off the motor 405 to ensure that the support plate 401 remains in a fixed position to prevent the device from shaking or tipping over.

[0035] Crushing and returning to the field operation process:

[0036] 1. Adjust the crushing angle: Start motor 205 and adjust the tilt angle of connecting frame 202 to keep the crushing component 3 at the optimal working distance from the ground.

[0037] 2. Start the crushing blade: Start motor 303 to drive the connecting rod 301 and the crushing blade 302 to rotate at high speed, cutting and crushing the straw.

[0038] 3. Straw return to the field: The crushed straw is scattered into the field under the guidance of the arc-shaped baffle 204 to complete the straw return operation.

[0039] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-efficiency rapeseed straw crushing and returning device, comprising a tractor (1), wherein a crushing and returning component (2) is connected to one side of the tractor (1), characterized in that: The crushing and returning to the field assembly (2) includes a connecting clamp (201) disposed on one side of the tractor (1), a connecting frame (202) is hinged inside the connecting clamp (201), a roller (203) is rotatably connected to one side of the connecting frame (202), a crushing assembly (3) and an arc-shaped baffle (204) are disposed inside the connecting frame (202), and a motor (205) for driving the connecting frame (202) to rotate is fixedly disposed on one side of the connecting clamp (201); The crushing component (3) consists of a connecting rod (301), several crushing blades (302), two connecting structures, and a second motor (303), with the connecting rod (301) connecting the two connecting structures. The tractor (1) is provided with an adjustable support component (4) at the bottom, and the support component (4) supports the crushing and returning to the field component (2).

2. The rapeseed straw high-efficiency crushing and returning device according to claim 1, characterized in that: The connection structure includes a connecting groove (304) rotatably disposed in the connecting frame (202), a limiting plate (305) hinged to the top of the connecting groove (304), and a connecting rod (301) movably placed in the connecting groove (304). The connecting groove (304), the connecting rod (301), and the limiting plate (305) are connected by bolts (306) and nuts (307). The bolts (306) movably pass through the connecting groove (304), the connecting rod (301), and the limiting plate (305) in sequence, and the nuts (307) are threaded onto the bolts (306).

3. The rapeseed straw high-efficiency crushing and returning device according to claim 2, characterized in that: Several crushing blades (302) are evenly distributed and fixed on the connecting rod (301).

4. The rapeseed straw high-efficiency crushing and returning device according to claim 3, characterized in that: The second motor (303) drives the connecting groove (304) of one of the connecting structures to rotate.

5. The rapeseed straw high-efficiency crushing and returning device according to claim 1, characterized in that: The support assembly (4) includes a support plate (401) that is slidably positioned at the bottom of the tractor (1) and two receiving plates (402) that are fixedly positioned at the bottom of the tractor (1). A gear (403) is rotatably positioned between the two receiving plates (402), and the top of the support plate (401) is provided with a plurality of tooth grooves (404) that mesh with the gear (403). A motor (405) that drives the gear (403) to rotate is fixedly positioned on one side of one of the receiving plates (402).

6. The rapeseed straw high-efficiency crushing and returning device according to claim 5, characterized in that: The support plate (401) is slid to the bottom of the connecting clamp (201) and the connecting frame (202) by the rotation control of the gear (403).