Straw field returning machine

Abstract

The utility model discloses a kind of straw field return machines, it is related to agricultural machinery technical field, including machine body, the machine body is rotatably connected with the smashing shaft, the outside of smashing shaft is provided with smashing cutter group, for smashing straw, the length direction of machine body is equipped with horizontal plate in one side, the lower end of horizontal plate is provided with several rotating cylinders at equal intervals, several rotating cylinders are movably connected with horizontal plate. With the movement of machine body, to drive horizontal plate and several rotating cylinders to move, if there is larger stone or harder soil block in the process of moving, by the rotation of several rotating cylinders, drive stone to move to the both ends of machine body, avoid stone to enter into machine body to cause damage to smashing cutter group, to play the effect of protecting smashing cutter group;If the land of corn field appears uneven condition, the height of rotating can be adjusted to adapt to the height of land, and the adaptability is stronger;The efficiency of straw smashing field return is higher.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a straw returning machine. Background Technology

[0002] As a major byproduct of agricultural production, straw disposal has always been a key issue in the field of agricultural mechanization. Traditional burning methods have been banned due to environmental pollution problems. Straw return to the field technology can improve soil structure and increase organic matter content, and has become the mainstream solution for straw disposal.

[0003] Related technology can be found in Chinese Patent No. CN217564188U, which discloses a straw-returning harvester. The harvester includes a main body with rotating sleeves rotatably connected to both sides. Each sleeve's outer wall is connected to mounting components via connecting brackets. Multiple sets of rotating drums are connected to the bottom of each mounting component via a rotating shaft. Positioning components are mounted on the connecting brackets, which are then connected to the main body of the harvester. By using multiple rotating drums rotatable at the front of the harvester, the drums arranged on the mounting components allow larger stones at the front of the harvester to pre-contact with the drums as the harvester moves forward. Guided by the drums, the stones move outwards along both sides of the mounting components, effectively preventing larger stones from entering the harvester and damaging the harvesting blades, thus significantly improving the device's lifespan.

[0004] Regarding the aforementioned technologies, during the operation of the straw returning machine, it moves in the cornfield to crush the straw. Because the rotating drum needs to move stones to prevent them from entering the harvester body, the height of the rotating drum from the ground is relatively small. When the cornfield is affected by rainfall or irrigation, the soil in the cornfield is prone to becoming uneven. If the harvester body enters a pit, the height of the rotating drum will also decrease. If the rotating drum comes into contact with the side wall of the pit, it will cause the rotating drum to malfunction and become unable to rotate. If the harvester body continues to move, the rotating drum may also be damaged by stress. Utility Model Content

[0005] To address the aforementioned issues, this application provides a straw returning machine.

[0006] This application provides a straw returning machine, which adopts the following technical solution:

[0007] A straw returning machine includes a machine body, a crushing shaft rotatably connected inside the machine body, a crushing blade assembly provided outside the crushing shaft for crushing straw, a horizontal plate provided on one side of the machine body along its length, and a plurality of rotating drums provided at equal intervals at the lower end of the horizontal plate, all of which are movably connected to the horizontal plate.

[0008] By adopting the above technical solution, as the machine moves, it drives the horizontal plate and several rotating drums to move as well. If there are large stones or hard clods of soil during the movement, the rotation of the rotating drums will move the stones to both ends of the machine, preventing them from entering the machine and damaging the crushing blade assembly, thus protecting the crushing blade assembly. If the cornfield soil is uneven, the rotation height can be adjusted to adapt to the soil level, making it highly adaptable. The rotation of the crushing shaft feeds the straw into the machine and crushes it, resulting in high efficiency in returning crushed straw to the field.

[0009] Optionally, the lower end of the horizontal plate is vertically slidably connected with several wheels.

[0010] By adopting the above technical solution, the horizontal plate is supported by several walking wheels moving in the cornfield. If there are potholes in the cornfield, the height of the walking wheels can be adjusted to adapt to the potholes in the cornfield, thereby improving the stability of the horizontal plate.

[0011] Optionally, the lower end of the horizontal plate is provided with several sleeves, and a restoring element is provided between the outer cylinder and the inner cylinder of the sleeve to push the inner cylinder to move away from the outer cylinder. The sleeves correspond one-to-one with the traveling wheels, and the traveling wheels are rotatably connected to the end of the corresponding inner cylinder away from the outer cylinder.

[0012] By adopting the above technical solution, if the machine is traveling in a pothole in a cornfield, the inner cylinder will move towards the outer cylinder, thereby causing the rotating cylinder to move upward. If there are stones at this time, the rotating cylinder can still move the stones, thus protecting the machine.

[0013] Optionally, each of the rotating cylinders corresponds one-to-one with a sleeve, and each rotating cylinder is rotatably connected to the outside of the corresponding sleeve.

[0014] By adopting the above technical solution, the rotating drum rotates outside the sleeve. If there are large stones on the road, they will come into contact with the rotating drum. As the machine moves, the rotating drum will move the stones to both ends of the machine, thereby reducing the number of stones entering the machine and protecting the crushing blade assembly.

[0015] Optionally, each of the outer cylinders is equipped with a bearing, the inner ring of which is vertically slidably connected to the outer cylinder, and the outer ring of which is fixedly connected to the upper end of the corresponding rotating cylinder.

[0016] By adopting the above technical solution, when driving on the uneven ground of a cornfield, the inner cylinder enters the outer cylinder, and the bearing slides on the outer cylinder, thereby driving the rotating cylinder to slide; when driving on relatively flat ground, the inner cylinder moves away from the outer cylinder, and under the action of the restoring component, the bearing returns to its initial position, thereby driving the rotating cylinder to return to its original position, which is highly convenient.

[0017] Optionally, a bearing 2 is installed on the outside of each inner cylinder. The inner ring of the bearing 2 is fixedly connected to the end of the inner cylinder away from the outer cylinder, and the outer ring of the bearing 2 is fixedly connected to the lower end of the corresponding rotating cylinder.

[0018] By adopting the above technical solution, when the rotating drum rotates, the outer ring of the second bearing rotates, which is simple in structure and convenient in rotating the drum.

[0019] Optionally, each of the aforementioned wheels is provided with a number of protrusions in the circumference for insertion into the soil.

[0020] By adopting the above technical solution, the stability of the traveling wheel during movement is improved, thereby improving the stability of the rotating drum and enhancing the transport efficiency of larger stones.

[0021] Optionally, the restoring component is a restoring spring, used to drive the inner cylinder to move away from the outer cylinder.

[0022] By adopting the above technical solution, the inner cylinder is driven by a restoring spring, resulting in a simple structure and convenient operation.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. As the machine moves, it also moves the horizontal plate and several rotating drums. If there are large stones or hard clods of soil during the movement, the rotation of the drums will move the stones to both ends of the machine, preventing them from entering the machine and damaging the crushing blade assembly, thus protecting the crushing blade assembly. If the cornfield soil is uneven, the rotation height can be adjusted to adapt to the soil level, making it highly adaptable. The rotation of the crushing shaft feeds the straw into the machine and crushes it, resulting in high efficiency in returning crushed straw to the field.

[0025] 2. If driving through a pothole in a cornfield, the inner cylinder moves towards the outer cylinder, which in turn moves the rotating cylinder upward. If there are stones at this time, the rotating cylinder can still move the stones, thus protecting the machine.

[0026] 3. When driving on uneven ground in a cornfield, the inner cylinder enters the outer cylinder, and the bearing slides on the outer cylinder, which in turn drives the rotating cylinder to slide. When driving on relatively flat ground, the inner cylinder moves away from the outer cylinder. Under the action of the restoring component, the bearing returns to its initial position, which in turn drives the rotating cylinder to return to its original position, making it more convenient. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a straw returning machine.

[0028] Figure 2 This is a schematic diagram highlighting the tapered section.

[0029] Figure 3 This is a cross-sectional schematic diagram highlighting the sleeve.

[0030] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Crushing shaft; 21. Crushing blade assembly; 3. Horizontal plate; 4. Rotary drum; 5. Traveling wheel; 51. Boss; 6. Sleeve; 61. Outer cylinder; 62. Inner cylinder; 63. Replica part; 7. Bearing 1; 8. Bearing 2. Detailed Implementation

[0031] The present application will be further described in detail below with reference to all the accompanying drawings.

[0032] This application discloses a straw returning machine.

[0033] Reference Figure 1 and Figure 2 A straw returning machine includes a body 1, a crushing shaft 2 rotatably connected inside the body 1, and a crushing blade assembly 21 disposed outside the crushing shaft 2 for crushing straw. A horizontal plate 3 is provided on one side of the body 1 along its length, and a plurality of rotating cylinders 4 are evenly spaced at the lower end of the horizontal plate 3. The plurality of rotating cylinders 4 are movably connected to the horizontal plate 3. When using the body 1, if there are stones in the straw field, the stones will first come into contact with the plurality of rotating cylinders 4, thereby preventing the stones from entering the body 1 and damaging the crushing blade assembly 21, thus improving the service life of the body 1.

[0034] If the machine body 1 travels on uneven ground, the height of the rotating drum 4 can be adjusted to adapt to the different heights of the ground, thus avoiding damage to the rotating drum 4, allowing the rotating drum 4 to be used normally, and thereby improving the applicability of the rotating drum 4.

[0035] Reference Figure 1 and Figure 2The horizontal plate 3 is tapered on the side away from the machine body 1, and several rotating cylinders 4 are movably connected to the bottom of the tapered part. During the movement of the machine body 1, if there are large stones or hard soil clods, as the machine body 1 continues to move, the stones or soil clods will come into contact with the rotating cylinders 4 in turn, and move to one side of the machine body 1 under the drive of the rotating cylinders 4. This prevents the stones from entering the interior of the machine body 1, and prevents the stones or hard soil clods from contacting the crushing blade assembly 21, so as to avoid damage to the crushing blade assembly 21. This improves the service life of the crushing blade assembly 21.

[0036] Reference Figure 1 and Figure 3 The lower end of the horizontal plate 3 is vertically slidably connected to several traveling wheels 5. Several protrusions 51 are provided around the circumference of each of the traveling wheels 5 for insertion into the soil, thereby improving the stability of the movement of the traveling wheels 5. Several sleeves 6 are provided at the lower end of the horizontal plate 3. A restoring element 63 is provided between the outer cylinder 61 and the inner cylinder 62 of the sleeve 6 for pushing the inner cylinder 62 to move away from the outer cylinder 61. Each sleeve 6 corresponds to a traveling wheel 5, and each traveling wheel 5 is rotatably connected to the end of the corresponding inner cylinder 62 away from the outer cylinder 61. Each rotating cylinder 4 corresponds to a sleeve 6, and each rotating cylinder 4 is rotatably connected to the outside of the corresponding sleeve 6.

[0037] If the machine body 1 travels into the pit, under the action of the restoration part 63, the inner cylinder 62 moves away from the outer cylinder 61, and the traveling wheel 5 always contacts the ground of the pit, thereby protecting the rotating cylinder 4.

[0038] Each outer cylinder 61 is equipped with a bearing 7. The inner ring of the bearing 7 is vertically slidably connected to the outer cylinder 61, and the outer ring of the bearing 7 is fixedly connected to the upper end of the corresponding rotating cylinder 4. Each inner cylinder 62 is equipped with a bearing 8. The inner ring of the bearing 8 is fixedly connected to the end of the inner cylinder 62 away from the outer cylinder 61, and the outer ring of the bearing 8 is fixedly connected to the lower end of the corresponding rotating cylinder 4. As the inner cylinder 62 moves away from the outer cylinder 61, the bearing 8 slides on the outer cylinder 61, thereby driving the rotating cylinder 4 to move downward. If there are stones in the pit at this time, the rotating cylinder 4 can still convey the stones as the machine body 1 moves, thus protecting the machine body 1.

[0039] If the machine body 1 travels onto the protrusion, the inner cylinder 62 moves into the outer cylinder 61. At this time, the restoring part 63 is compressed, the bearing 7 slides on the outer cylinder 61, and the traveling wheel 5 is always in contact with the ground of the protrusion, thus protecting the rotating drum 4. If there are stones on the protrusion, the rotating drum 4 can still transport the stones to one side of the machine body 1, thus protecting the machine body 1.

[0040] In this embodiment, the restoring element 63 is preferably a restoring spring, which has a simple structure and is convenient for driving the inner cylinder 62 to extend.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A straw returning machine, comprising a body (1), characterized in that: The machine body (1) is rotatably connected to a crushing shaft (2), and a crushing blade assembly (21) is provided on the outside of the crushing shaft (2) for crushing straw. A horizontal plate (3) is provided on one side of the machine body (1) along its length. Several rotating drums (4) are provided at equal intervals at the lower end of the horizontal plate (3), and the rotating drums (4) are all movably connected to the horizontal plate (3).

2. The straw returning machine according to claim 1, characterized in that: The lower end of the horizontal plate (3) is vertically slidably connected to several traveling wheels (5).

3. A straw returning machine according to claim 2, characterized in that: The lower end of the horizontal plate (3) is provided with a plurality of sleeves (6). A restoring element (63) is provided between the outer cylinder (61) and the inner cylinder (62) of the sleeve (6) for pushing the inner cylinder (62) to move away from the outer cylinder (61). The sleeves (6) correspond one-to-one with the traveling wheels (5), and the traveling wheels (5) are all rotatably connected to the end of the corresponding inner cylinder (62) away from the outer cylinder (61).

4. A straw returning machine according to claim 3, characterized in that: Each of the rotating cylinders (4) corresponds one-to-one with the sleeve (6), and each rotating cylinder (4) is rotatably connected to the outside of the corresponding sleeve (6).

5. A straw returning machine according to claim 4, characterized in that: Each of the outer cylinders (61) is equipped with a bearing (7) on its exterior. The inner ring of the bearing (7) is vertically slidably connected to the outer cylinder (61), and the outer ring of the bearing (7) is fixedly connected to the upper end of the corresponding rotating cylinder (4).

6. A straw returning machine according to claim 3, characterized in that: Each inner cylinder (62) is equipped with a bearing 2 (8) on its exterior. The inner ring of the bearing 2 (8) is fixedly connected to the end of the inner cylinder (62) away from the outer cylinder (61), and the outer ring of the bearing 2 (8) is fixedly connected to the lower end of the corresponding rotating cylinder (4).

7. A straw returning machine according to claim 2, characterized in that: Several of the aforementioned wheels (5) are provided with several protrusions (51) in the circumference for insertion into the soil.

8. A straw returning machine according to claim 3, characterized in that: The restoring component is a restoring spring, which is used to drive the inner cylinder (62) to move away from the outer cylinder (61).

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