Adjustable straw pulverization and returning device

Abstract

The utility model relates to the field of agricultural tools, concretely relates to an adjustable straw smashing and returning to field device, including straw hopper, one side of straw hopper is provided with frame, the back of one side of straw hopper is provided with motor pivot, one side outside motor pivot is provided with belt, the other side of belt inboard is provided with drive shaft, one end close to drive shaft inside straw hopper is provided with driving cutter, the upper end of driving cutter is provided with cutting roller, the end of straw hopper is provided with tail plate, the both sides of tail plate are provided with pneumatic cylinder, the utility model forms power transmission chain through motor pivot, belt, drive shaft, and stable driving driving cutter rotation cooperates with fixed cutting roller, constructs basic smashing structure, tail plate turns over and closes straw hopper through pneumatic cylinder, prevents material splashing when smashing, and motor assembly drives rotating lever, warped plate linkage pressing plate, makes that bar extrudes material, forces it to enter smashing area, guarantees that straw and cutting roller contact fully.

Description

Technical Field

[0001] This utility model relates to the field of agricultural implements, specifically an adjustable straw crushing and returning device. Background Technology

[0002] Straw crushing and returning devices are used in agricultural production to crush straw in the field and directly return it to the farmland. By crushing the straw, the resource utilization of straw is realized, and soil structure is improved. In practical applications, general-purpose devices have obvious problems: on the one hand, the power transmission link is prone to instability, resulting in fluctuations in the speed of the cutting roller and affecting the crushing effect; on the other hand, straw is easily splashed inside the crushing chamber due to the impact of crushing, and some straw cannot fully contact the cutting roller due to the conveying angle and its own shape, resulting in incomplete crushing, material residue or overflow, and reduced resource utilization.

[0003] To address these issues, common methods typically employ a simple motor-driven direct-drive power transmission system for the cutting rollers, supplemented by a basic enclosed hopper structure. This involves directly driving the cutting rollers with a motor, attempting to reduce material splashing through fixed baffles, and simultaneously relying on the straw's own weight or a simple pushing mechanism to guide the straw into the crushing area, thus ensuring contact between the straw and the cutting rollers.

[0004] However, the power transmission of a simple motor directly connected to the cutting roller lacks precise control over the stability of the rotation speed and does not form a continuous power chain, making it prone to jamming due to load changes. Although the fixed baffle can block the flow to a certain extent, it cannot dynamically adapt to the different states of material splashing during the crushing process. The simple pushing structure is difficult to effectively compress and guide the straw, and the straw is prone to accumulation and deviation, resulting in insufficient contact with the cutting roller, poor crushing effect, and failure to meet the demand for efficient and thorough straw crushing and returning to the field.

[0005] Therefore, an adjustable straw crushing and returning device is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an adjustable straw crushing and returning device, which can solve the problems mentioned in the background.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable straw crushing and returning device, comprising a straw hopper, a frame on one side of the straw hopper, a motor pivot on the back side of one side of the straw hopper, a belt on one side outside the motor pivot, a drive shaft on the other side inside the belt, an active cutting roller inside the straw hopper near the drive shaft, a cutting roller on the upper end of the active cutting roller, a tail plate at the end of the straw hopper, and cylinders on both sides of the tail plate;

[0008] Positioning plates are installed at the upper ends of both ends of the straw hopper. A shaft is horizontally inserted through the front end of the positioning plate. A pressure plate is installed outside the shaft. Multiple spikes are installed on the top of the pressure plate. A rocker plate is installed at the bottom of the pressure plate. A rotating rod is horizontally inserted through the rocker plate. An adapter plate is installed on one side of the rotating rod. A motor assembly is installed on the other side of the rotating rod.

[0009] A conveying platform is installed on one side of the bottom of the straw hopper. A rail plate is installed at the upper end of the front of the conveying platform. Sliders are installed on both sides of the rail plate. Side baffles are installed at the bottom of the sliders. A limit plate is installed on the front of the rail plate.

[0010] Preferably, the rocker structure is a V-shaped structure, and the rocker and the rotating rod are fixedly connected.

[0011] Preferably, the adapter plate and the rotating rod form a rotating structure.

[0012] Preferably, a sliding structure is formed between the inner side of the slider and the outer side of the rail plate.

[0013] Preferably, the rotating rod and the pressure plate are fixedly connected, and the rotating rod and the positioning plate form a rotating structure.

[0014] Preferably, the positioning plate and the straw hopper are connected by welding.

[0015] Preferably, the slider and the side baffle are fixedly connected, and the side baffles on both sides of the rail plate have a figure-eight structure.

[0016] Preferably, the area of ​​the limiting plate is larger than the cross-sectional area of ​​the track plate.

[0017] Compared with the prior art, this utility model provides an adjustable straw crushing and returning device, which has the following beneficial effects:

[0018] 1. The motor pivot, belt, and drive shaft form a power transmission chain, stably driving the active cutting roller to rotate. In conjunction with the fixed cutting roller, it constructs the basic crushing structure. The tail plate is flipped by a cylinder to close the straw hopper, preventing material from splashing during crushing. The motor assembly drives the rotating rod and the rocker plate to press the pressure plate, causing the spikes to squeeze the material and force it into the crushing area, ensuring full contact between the straw and the cutting roller.

[0019] 2. After crushing, the material is conveyed by the transmission platform. The track plate, slider, and side baffle form a shape adjustment structure. The slider slides along the track plate, which drives the V-shaped side baffle to adjust the spacing. The limit plate restricts the slider stroke and precisely controls the discharge width and aggregation shape. This structure allows the crushed straw to be discharged as needed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall appearance and structure of the adjustable straw crushing and returning device of this utility model;

[0021] Figure 2 This is a schematic diagram of the component layout adjustment structure of the adjustable straw crushing and returning device of this utility model;

[0022] Figure 3 This utility model relates to an adjustable straw crushing and returning device. Figure 2 A magnified structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the internal structure of the straw hopper of the adjustable straw crushing and returning device of this utility model;

[0024] Figure 5 This utility model relates to an adjustable straw crushing and returning device. Figure 4 A magnified structural diagram at point B.

[0025] In the diagram: 1. Frame; 2. Side baffle; 3. Rail plate; 4. Slider; 5. Cylinder; 6. Tail plate; 7. Adapter plate; 8. Rotating rod; 9. Pressure plate; 10. Spike rod; 11. Motor assembly; 12. Straw hopper; 13. Transmission platform; 14. Drive shaft; 15. Limiting plate; 16. Cutting roller; 17. Active cutting roller; 18. Tilter; 19. Motor pivot; 20. Belt; 21. Positioning plate; 22. Shaft. Detailed Implementation

[0026] 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.

[0027] Example:

[0028] An adjustable straw crushing and returning device includes a straw hopper 12, a frame 1 on one side of the straw hopper 12, a motor pivot 19 on the back of one side of the straw hopper 12, a belt 20 on one side outside the motor pivot 19, a drive shaft 14 on the other side inside the belt 20, an active cutting roller 17 on one end of the straw hopper 12 near the drive shaft 14, a cutting roller 16 on the upper end of the active cutting roller 17, a tail plate 6 on the end of the straw hopper 12, and cylinders 5 on both sides of the tail plate 6.

[0029] Positioning plates 21 are provided at the upper ends of both ends of the straw hopper 12. A shaft 22 is horizontally inserted through the front end of the positioning plate 21. A pressure plate 9 is provided on the outside of the shaft 22. Multiple spikes 10 are provided on the top of the pressure plate 9. A rocker plate 18 is provided at the bottom of the pressure plate 9. A rotating rod 8 is horizontally inserted through the inside of the rocker plate 18. An adapter plate 7 is provided on one side of the rotating rod 8. A motor assembly 11 is provided on the other side of the rotating rod 8.

[0030] A conveying platform 13 is provided on one side of the bottom of the straw hopper 12. A rail plate 3 is provided on the upper front of the conveying platform 13. Slider 4 is provided on both sides of the rail plate 3. Side baffles 2 are provided at the bottom of the slider 4. A limit plate 15 is provided on the front of the rail plate 3.

[0031] Example 1:

[0032] Please see Figure 1 - Figure 5 The cutting roller 16 is replaced with an adjustable-gap double cutting roller structure. An adjustable slide rail is added to the inner wall of the straw hopper 12. The new component is used to optimize the structure. The slides at both ends of the double cutting roller are adapted to the slide rail. The gap between the two cutting rollers can be adjusted manually or electrically. When working, after the frame 1 is in place, the straw material is put in. The motor pivot 19 drives the drive shaft 14 via the belt 20, which drives the active cutting roller 17 to rotate. The gap between the double cutting rollers is adjusted according to the thickness of the straw so that it can cooperate with the active cutting roller 17 to more efficiently crush straw of different diameters.

[0033] Before the material is crushed, the motor assembly 11 drives the rotating rod 8, which in turn causes the V-shaped rocker 18 to flip, thereby causing the pressure plate 9 to rotate around the shaft 22 within the positioning plate 21. When the pressure plate 9 rotates 180°, the spike 10 squeezes the material in the straw hopper 12, forcing the material into the crushing area to prevent splashing. After crushing, the material falls onto the transmission platform 13. The slider 4 on the moving rail plate 3 drives the V-shaped side baffle 2 to adjust its position. The limiting plate 15 restricts the stroke of the slider 4, controlling the material discharge form, so that the crushed straw is discharged in an orderly manner, which facilitates the subsequent return to the field operation.

[0034] Example 2:

[0035] Please see Figure 1 - Figure 5 Replace the frame 1 with a tracked chassis to optimize mobility by replacing parts and improve the device’s passability in muddy and uneven fields. At the same time, add a magnetic pre-sorting plate at the inlet of the straw hopper 12 to use magnetic force to attract metal debris mixed in the straw, such as discarded iron wires and nails from the field, and prevent them from entering the crushing parts and damaging the equipment.

[0036] During operation, the tracked chassis drives the device to the designated position in the field. The magnetic pre-treatment plate adsorbs metal objects in the straw. The straw is manually or mechanically fed into the hopper. The motor pivot 19 drives the active cutting roller 17. The cutting roller 16 works with the active cutting roller 17 to crush the straw. The motor assembly 11 drives the rotating rod 8, causing the pressure plate 9 to rotate and squeeze the material to ensure the crushing effect. The crushed material is transported through the transmission platform 13. The shape of the material is controlled by the cooperation of the side baffle 2, the slider 4, the track plate 3, and the limit plate 15 to adapt to different needs for returning straw to the field and spreading it, thus expanding the applicability of the device in complex environments and diverse straw processing scenarios.

[0037] When in use, the user enters the vehicle frame 1, starts the vehicle frame 1, drives the vehicle frame 1 to a suitable position, and then the user puts the straw material into the straw hopper 12. At this time, the user starts the power equipment inside the vehicle frame 1. At this time, the motor pivot 19 starts to rotate, the motor pivot 19 drives the belt 20 to rotate, the belt 20 drives the drive shaft 14 to rotate, the drive shaft 14 starts to drive the active cutting roller 17 inside the straw hopper 12 to rotate, while the cutting roller 16 remains stationary. When all the material has been put into the straw hopper 12, the cylinder 5 is started. The cylinder 5 drives the tail plate 6 to flip to the end of the straw hopper 12. At this time, the straw hopper 12 is completely closed.

[0038] At this time, the material is crushed by the cutting roller 16 and the active cutting roller 17. Then the motor assembly 11 is started. The motor assembly 11 drives the rotating rod 8 to rotate. The rotating rod 8 drives the rocker plate 18 to flip. The rocker plate 18 drives the pressure plate 9 to rotate. At this time, the pressure plate 9 drives the shaft 22 to rotate outside the positioning plate 21. When the pressure plate 9 rotates to 180°, the spikes 10 outside the pressure plate 9 squeeze the material inside the straw hopper 12, so that the material can fully enter the crushing area formed by the cutting roller 16 and the active cutting roller 17 inside the straw hopper 12, and also prevent the material inside the straw hopper 12 from flying out.

[0039] Furthermore, after the material is crushed by the cutting roller 16 and the active cutting roller 17, it enters the conveying platform 13. At this time, the conveying platform 13 is working normally and moves the material to one side for export. The user moves the slider 4 outside the track plate 3. The slider 4 drives the side baffle 2 to move outside the track plate 3. The limiting plate 15 can prevent the slider 4 from moving excessively. The side baffle 2 has an eight-shaped structure, which can control the structure of the crushed material export and prevent the exported material from being placed in a chaotic shape.

[0040] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable straw crushing and returning device, characterized in that, The device includes a straw hopper, a frame on one side of the straw hopper, a motor pivot on the back of one side of the straw hopper, a belt on one side outside the motor pivot, a drive shaft on the other side inside the belt, an active cutting roller inside the straw hopper near the drive shaft, a cutting roller on the upper end of the active cutting roller, a tail plate at the end of the straw hopper, and cylinders on both sides of the tail plate. Positioning plates are provided at the upper ends of both ends of the straw hopper. A shaft is horizontally inserted through the front end of the positioning plate. A pressure plate is provided outside the shaft. Multiple spikes are provided at the top of the pressure plate. A rocker plate is provided at the bottom of the pressure plate. A rotating rod is horizontally inserted through the rocker plate. An adapter plate is provided on one side of the rotating rod. A motor assembly is provided on the other side of the rotating rod. A conveying platform is provided on one side of the bottom of the straw hopper. A rail plate is provided on the upper part of the front of the conveying platform. Sliders are provided on both sides of the rail plate. Side baffles are provided at the bottom of the sliders. A limit plate is provided on the front of the rail plate.

2. The adjustable straw crushing and returning device according to claim 1, characterized in that: The rocker structure is a V-shaped structure, and the rocker and the rotating rod are fixedly connected.

3. The adjustable straw crushing and returning device according to claim 1, characterized in that: The adapter plate and the rotating rod form a rotating structure.

4. The adjustable straw crushing and returning device according to claim 1, characterized in that: The rotating rod is fixedly connected to the pressure plate, and the rotating rod and the positioning plate form a rotating structure.

5. The adjustable straw crushing and returning device according to claim 1, characterized in that: The positioning plate and the straw hopper are connected by welding.

6. The adjustable straw crushing and returning device according to claim 1, characterized in that: The slider and the side baffle are fixedly connected, and the side baffles on both sides of the rail plate have a figure-eight structure.

7. An adjustable straw crushing and returning device according to claim 1, characterized in that: The inner side of the slider and the outer side of the rail plate form a sliding structure.

8. The adjustable straw crushing and returning device according to claim 1, characterized in that: The area of ​​the limiting plate is larger than the cross-sectional area of ​​the track plate.

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