Straw smashing and returning machine with buffer structure
By setting a buffer structure in front of the straw crushing and returning machine, the problem of easy damage to the crushing rollers was solved, achieving efficient crushing and soil improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HAOFENG AGRI EQUIP CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
Existing straw crushing and returning machines are prone to collisions and damage with obstacles on the road surface during movement, affecting crushing efficiency and increasing operating costs.
A buffer assembly consisting of a baffle, rubber pads, and spring shock absorbers is installed at the front of the machine to absorb the impact of obstacles, prevent damage to the crushing rollers, and press down on the straw through the baffle to improve the crushing effect.
It effectively protects the crushing roller, improves crushing efficiency and effect, and accelerates straw decomposition, thereby enhancing soil fertility.
Smart Images
Figure CN224192502U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straw crushing and returning machine technology, and more specifically to a straw crushing and returning machine with a buffer structure. Background Technology
[0002] In agricultural production, after the harvest of crops, the next step is to remove straw from the fields to prepare for the planting of later crops. For example, cotton stalks or corn stalks are traditionally removed manually. The removed straw is then left in the fields for burning, causing serious air pollution. Therefore, the government is vigorously promoting the return of straw to the fields to reduce pollution and improve farmland soil. Returning straw to the fields promotes the increase of soil organic matter and the content of nitrogen, phosphorus, and potassium, balancing imbalances; improves soil moisture retention capacity; effectively increases soil organic matter content, improves soil quality, accelerates soil maturation, and enhances soil fertility. When returning straw to the fields, a straw crushing and returning machine must be used to crush the straw before returning it to the field.
[0003] For example, a straw crushing and returning machine with the existing technology announcement number CN222053915U is designed to crush straw three times with fixed blades A, B, and C, thereby improving crushing efficiency and effect; the stubble-cutting blade cuts off the straw roots and crushes them together with the roots, thus eliminating stubble; the stubble-cutting blade picks up the remaining straw from the ground, improving the picking effect and resulting in better returning straw to the field.
[0004] However, the existing technology described above still has the following problems in use: during the movement of the straw crushing and returning machine, the crushing roller is easily damaged by collisions with obstacles on the road surface, which not only requires maintenance and replacement of the crushing roller, increasing the operating cost, but also affects the subsequent straw crushing and returning efficiency. Based on this, this utility model provides a straw crushing and returning machine with a buffer structure. Utility Model Content
[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a straw crushing and returning machine with a buffer structure. By setting a baffle at the front of the machine body, when the machine body encounters an obstacle during its forward movement, the obstacle impacts the rubber pad and the baffle. Multiple spring shock absorbers between the baffle and the mounting plate can play a buffering role, preventing the obstacle from impacting and damaging the crushing roller, thus affecting the subsequent crushing and returning to the field. At the same time, the baffle can press the straw down, thereby improving the subsequent crushing effect, thus solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a straw crushing and returning machine with a buffer structure, comprising a machine body and a crushing roller rotatably installed inside the machine body. A buffer assembly is installed at the front end of the machine body. The buffer assembly includes a mounting plate. A baffle is provided at the front end of the mounting plate. Multiple evenly distributed spring shock absorbers are connected between the baffle and the mounting plate. A rubber pad is fixedly provided at the front end of the baffle. A pressure roller is provided at the rear of the machine body. Connecting plates are movably connected to both sides of the pressure roller. The connecting plates are detachably connected to the machine body. A lifting mechanism for driving the mounting plate to rise and fall is fixedly provided at the front end of the machine body.
[0007] In a preferred embodiment, the lifting mechanism includes a slide rail, which is fixedly embedded in the center of the front end of the machine body. A lead screw is rotatably connected inside the slide rail, and a nut block is threaded onto the lead screw. The front end of the nut block is fixed to the mounting plate. By using the lead screw and the nut block in cooperation, the mounting plate can be driven to move up and down, thereby quickly adjusting the height of the baffle.
[0008] In a preferred embodiment, the top of the lead screw extends through the top of the slide rail, and a first motor is detachably installed on the top of the machine body. The output shaft of the first motor is connected to the lead screw through a first gear set. The first motor drives the lead screw to rotate, thereby automatically adjusting the height of the mounting plate and the baffle.
[0009] In a preferred embodiment, both the front surface of the mounting plate and the rear surface of the baffle are provided with mounting grooves adapted to the spring shock absorber. The spring shock absorber can be detachably fixed in the mounting groove, which facilitates the subsequent disassembly and replacement of the spring shock absorber by the staff.
[0010] In a preferred embodiment, a fixing groove is provided on one side of the top of the machine body, and a second motor is detachably installed inside the fixing groove. The output shaft of the second motor is connected to the crushing roller through a second gear set. With the cooperation of the second motor and the second gear set, the crushing roller can be driven to rotate at high speed, thereby improving the crushing effect of straw.
[0011] In a preferred embodiment, a protective cover is fixedly provided on one side of the machine body. The protective cover is located outside the second gear set. The protective cover can reduce the impact of straw on the second gear set to a certain extent.
[0012] In a preferred embodiment, two drive wheels are fixedly provided on the outer walls of both sides of the machine body. The two drive wheels are respectively located on both sides of the crushing roller. The drive wheels support the movement of the machine body, thereby improving the flexibility of the device.
[0013] In a preferred embodiment, an operating lever is fixedly provided on the rear top side of the machine body, the operating lever is located above the pressure roller, and reflective strips are affixed to both outer walls of the machine body. The reflective strips can serve as a warning, thereby improving safety.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] 1. This utility model uses a crushing roller to crush straw and spread it on the field, thereby achieving the effect of crushing and returning straw to the field. A baffle is set in front of the machine body. When the machine body encounters an obstacle during its forward movement, the obstacle hits the rubber pad and the baffle. Multiple spring shock absorbers between the baffle and the mounting plate can play a buffering role to prevent the obstacle from hitting the crushing roller and damaging it, thus affecting the subsequent crushing and returning to the field. At the same time, the baffle can press the straw down, thereby improving the subsequent crushing effect.
[0016] 2. As the pressure roller moves with the machine body, it applies pressure to the straw as it passes over it, making the straw come into closer contact with the soil. This increases the contact area between microorganisms and the straw, and the compacted straw layer is more conducive to maintaining soil moisture and temperature, providing a suitable living environment for microorganisms. This accelerates the decomposition process of the straw and improves the straw return to the field. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a bottom view of the overall structure of this utility model;
[0019] Figure 3 This is a cross-sectional view of the mounting plate and slide rail of this utility model;
[0020] Figure 4 This is a side view of the body of this utility model;
[0021] Figure 5 This is a schematic diagram of the baffle after it has been lowered according to this utility model.
[0022] The attached figures are labeled as follows: 1. Machine body; 2. Crushing roller; 3. Buffer assembly; 4. Pressure roller; 5. Connecting plate; 6. Lifting mechanism; 7. Mounting groove; 8. Fixing groove; 9. Second motor; 10. Second gear set; 11. Protective cover; 12. Drive wheel; 13. Operating lever; 14. Reflective strip;
[0023] 31. Mounting plate; 32. Baffle; 33. Spring shock absorber; 34. Rubber pad;
[0024] 61. Slide rail; 62. Lead screw; 63. Nut block; 64. First motor; 65. First gear set. Detailed Implementation
[0025] 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.
[0026] Refer to the instruction manual appendix Figures 1-5 This utility model provides a straw crushing and returning machine with a buffer structure, including a machine body 1 and a crushing roller 2 rotatably installed inside the machine body 1. A buffer assembly 3 is installed at the front end of the machine body 1. The buffer assembly 3 includes a mounting plate 31. A baffle 32 is provided at the front end of the mounting plate 31. A rubber pad 34 is fixedly provided at the front end of the baffle 32. A plurality of evenly distributed spring shock absorbers 33 are connected between the baffle 32 and the mounting plate 31. The front surface of the mounting plate 31 and the rear surface of the baffle 32 are both provided with mounting grooves 7 that are adapted to the spring shock absorbers 33. The spring shock absorbers 33 can be detachably fixed in the mounting grooves 7, which facilitates the subsequent disassembly and replacement of the spring shock absorbers 33.
[0027] A lifting mechanism 6 for driving the mounting plate 31 to rise and fall is fixedly provided at the front end of the machine body 1. The lifting mechanism 6 includes a slide rail 61, which is fixedly embedded in the center of the front end of the machine body 1. A lead screw 62 is rotatably connected inside the slide rail 61. A nut block 63 is threadedly connected to the lead screw 62. The front end of the nut block 63 is fixed to the mounting plate 31. The top end of the lead screw 62 extends through the top of the slide rail 61. A first motor 64 is detachably installed on the top of the machine body 1. The output shaft of the first motor 64 is connected to the lead screw 62 through a first gear set 65. The first motor 64 drives the lead screw 62 to rotate, thereby automatically adjusting the height of the mounting plate 31 and the baffle 32.
[0028] A fixing groove 8 is provided on one side of the top of the machine body 1. A second motor 9 is detachably installed inside the fixing groove 8. The output shaft of the second motor 9 is connected to the crushing roller 2 through a second gear set 10. A protective cover 11 is fixedly provided on one side of the machine body 1. The protective cover 11 is located outside the second gear set 10. Two drive wheels 12 are fixedly provided on the outer walls of both sides of the machine body 1. The two drive wheels 12 are respectively located on both sides of the crushing roller 2.
[0029] In actual use, the second motor 9 and the second gear set 10 drive the crushing roller 2 to rotate stably, crushing the straw and spreading it evenly on the field, thus achieving the effect of crushing and returning it to the field. The baffle 32 can act as a buffer in front of the machine body 1. When the operator moves the machine body 1, the first motor 64 and the first gear drive the lead screw 62 to rotate. The nut block 63 on the lead screw 62 slides in the slide rail 61, which can drive the mounting plate 31 and the baffle 32 to move down together, so that the baffle 32 descends to the lowest position. Because the rubber pad 34 is soft, when the machine body 1 encounters an obstacle during its forward movement, When the obstruction hits the rubber pad 34 and the baffle 32, the multiple spring shock absorbers 33 between the baffle 32 and the mounting plate 31 absorb the impact force generated by the impact of the obstruction through the elastic deformation of the spring, converting the kinetic energy into the elastic potential energy of the spring, and then slowly releasing it, thereby effectively reducing the impact force on the machine body and playing a buffering role. In addition, since the baffle 32 is conical, it can guide the obstruction to move to both sides to prevent the obstruction from hitting the crushing roller 2 and causing damage, which would affect the subsequent crushing and returning to the field. At the same time, the baffle 32 can press down the straw, thereby improving the subsequent crushing effect.
[0030] Refer to the instruction manual appendix Figure 2 , Figure 4 and Figure 5 The machine body 1 is equipped with a pressure roller 4 at the rear. Both sides of the pressure roller 4 are movably connected to connecting plates 5, which are detachably connected to the machine body 1. When the straw is crushed, the crushed straw is spread flat on the field. When the pressure roller 4 passes over the crushed straw, it can apply pressure to the crushed straw, making the crushed straw come into closer contact with the soil, increasing the contact area between microorganisms and the crushed straw. At the same time, the compacted straw layer is more conducive to maintaining soil moisture and temperature, providing a suitable living environment for microorganisms, thereby accelerating the decomposition process of the crushed straw and improving the effect of returning the crushed straw to the field.
[0031] An operating lever 13 is fixedly installed on the top rear side of the machine body 1. The operating lever 13 is located above the pressure roller 4. Reflective strips 14 are affixed to both outer walls of the machine body 1. The reflective strips 14 can serve as a warning, thereby improving safety.
[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A straw crushing and returning machine with a buffer structure, comprising a machine body (1) and a crushing roller (2) rotatably installed inside the machine body (1), characterized in that: The front end of the body (1) is equipped with a buffer assembly (3), the buffer assembly (3) includes a mounting plate (31), the front end of the mounting plate (31) is provided with a baffle (32), a plurality of evenly distributed spring shock absorbers (33) are connected between the baffle (32) and the mounting plate (31), and a rubber pad (34) is fixedly provided at the front end of the baffle (32). The machine body (1) is provided with a pressure roller (4) at the rear. Both sides of the pressure roller (4) are movably connected with connecting plates (5). The connecting plates (5) are detachably connected to the machine body (1). The front end of the machine body (1) is fixedly provided with a lifting mechanism (6) for driving the mounting plate (31) to rise and fall.
2. The straw crushing and returning machine with a buffer structure according to claim 1, characterized in that: The lifting mechanism (6) includes a slide rail (61), which is fixedly embedded in the center of the front end of the body (1). A lead screw (62) is rotatably connected inside the slide rail (61), and a nut block (63) is threadedly connected to the lead screw (62). The front end of the nut block (63) is fixed to the mounting plate (31).
3. The straw crushing and returning machine with a buffer structure according to claim 2, characterized in that: The top of the lead screw (62) extends through the top of the slide rail (61), and a first motor (64) is detachably installed on the top of the machine body (1). The output shaft of the first motor (64) is connected to the lead screw (62) through a first gear set (65).
4. The straw crushing and returning machine with a buffer structure according to claim 1, characterized in that: The front surface of the mounting plate (31) and the rear surface of the baffle (32) are provided with mounting grooves (7) that are compatible with the spring shock absorber (33). The spring shock absorber (33) can be detachably fixed in the mounting groove (7).
5. A straw crushing and returning machine with a buffer structure according to claim 1, characterized in that: The top side of the machine body (1) is provided with a fixing groove (8), and a second motor (9) is detachably installed inside the fixing groove (8). The output shaft of the second motor (9) is connected to the crushing roller (2) through a second gear set (10).
6. A straw crushing and returning machine with a buffer structure according to claim 5, characterized in that: A protective cover (11) is fixedly provided on one side of the machine body (1), and the protective cover (11) is located outside the second gear set (10).
7. A straw crushing and returning machine with a buffer structure according to claim 1, characterized in that: Two drive wheels (12) are fixedly provided on both sides of the outer wall of the machine body (1), and the two drive wheels (12) are respectively located on both sides of the crushing roller (2).
8. A straw crushing and returning machine with a buffer structure according to claim 1, characterized in that: An operating lever (13) is fixedly provided on the rear top of the machine body (1). The operating lever (13) is located above the pressure roller (4). Reflective strips (14) are pasted on both outer walls of the machine body (1).