Self-adaptive adjusting device of straight knife returning machine

By designing an adaptive adjustment device on the straight blade rotary tillage machine, and utilizing a combination of elastic components and positioning screws, the impact problem when the straight blade rotary tillage machine encounters hard objects is solved, enabling buffer adjustment and convenient replacement of the blade body, and extending its service life.

CN224192432UActive Publication Date: 2026-05-05HENAN HAOFENG AGRI EQUIP CO LTD
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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

Technical Problem

Existing straight blade return machines lack buffer adjustment when encountering hard objects, causing the blades to bend easily and reducing their service life.

Method used

An adaptive adjustment device was designed, including a rotating roller, a straight blade plate, a positioning frame plate, and an elastic component. The deformation of the elastic component provides cushioning, and the straight blade plate adjusts its displacement when it contacts the ground to reduce impact. At the same time, the straight blade plate can be easily replaced by a combination of positioning screws and an auxiliary frame plate.

Benefits of technology

It improves the adaptive elastic deformation capability of the straight blade plate, protects the blade body, extends its service life, and simplifies the replacement process of the straight blade plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-adaptive adjusting device of a straight knife returning machine, which relates to the technical field of agriculture and comprises a returning machine body, a rotating roller is rotatably mounted on the inner side of the returning machine body, a straight knife plate is arranged on the surface of the rotating roller, a positioning frame plate is welded and mounted on the surface of the rotating roller, and a first groove is formed in the inner side of the positioning frame plate. According to the self-adaptive adjusting device of the straight knife returning machine, when the returning machine body works to loosen the land, the rotating roller drives the straight knife plate to rotate to break the land, and when the straight knife plate makes contact with the ground, the straight knife plate is driven to rotate to break the land. At the moment, the straight knife plate is subjected to external force to drive the power clamping plate to extrude the elastic assembly on the inner side of the positioning frame plate to shrink and deform, at the moment, the straight knife plate can form adjusting displacement at the moment of being in contact with the ground, and then the straight knife plate has a good buffering adjusting effect; therefore, the defect that the straight knife board is easy to impact and bend due to direct contact with hard objects on the ground is overcome.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural technology, and in particular to an adaptive adjustment device for a straight blade returning machine. Background Technology

[0002] Straight blade return machine is a type of agricultural machinery mainly used for returning straw to the field. It uses upright blades (straight blades) to cut straw, weeds and other ground vegetation by rotating the blades during operation. After the straw is chopped, it is turned over and pressed into the soil to achieve straw return to the field. This can improve soil structure, increase organic matter, and reduce pollution from burning.

[0003] While most existing straight-blade straw return machines are suitable for processing straw after harvesting crops such as rice and wheat, and can effectively chop and compact the straw into the soil, some machines have drawbacks. During operation, the blades directly impact the ground, and when there are hard objects on the ground, they cannot provide adequate cushioning and deformation adjustment. This leads to the blades being prone to bending due to impact, resulting in a reduced lifespan for the machine. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to solve the problems raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adaptive adjustment device for a straight blade trowel, comprising a trowel body, a rotating roller rotatably mounted on the inner side of the trowel body, a straight blade plate provided on the surface of the rotating roller, a positioning frame plate welded to the surface of the rotating roller, a first groove formed on the inner side of the positioning frame plate, a power clamp plate slidably mounted on the inner wall of the first groove, an auxiliary frame rod fixedly mounted on the inner side of the positioning frame plate, the surface of the auxiliary frame rod slidably mounted on the inner side of the power clamp plate, an elastic component slidably sleeved on the surface of the auxiliary frame rod, and the two ends of the elastic component being fixedly mounted on the inner side of the positioning frame plate and the surface of the power clamp plate, respectively.

[0006] Preferably, a second groove is provided on the inner side of the power clamping plate, and a positioning plate is slidably installed on the inner wall of the second groove. The surface of the positioning plate is welded to the surface of the straight blade plate.

[0007] Preferably, the surface of the positioning plate has an inner groove, and a positioning screw is slidably installed on the inner wall of the inner groove.

[0008] Preferably, an auxiliary frame plate is slidably installed on the inner side of the positioning frame plate, the surface threads of the positioning screw are installed on the inner side of the auxiliary frame plate, and the surface of the power clamp plate is fixedly installed on the surface of the auxiliary frame plate.

[0009] Preferably, the inner side of the power clamp is provided with a connecting groove, and the surface of the positioning screw is slidably mounted on the inner wall of the connecting groove.

[0010] Preferably, a support rod is welded and installed on the surface of the fertilizing machine body, and a discharge plate is rotatably installed on the inner side of the fertilizing machine body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The adaptive adjustment device of the straight blade reamer loosens the soil by rotating the roller to drive the straight blade to rotate and break the soil when the straight blade contacts the ground. At the moment when the straight blade contacts the ground, the straight blade is subjected to external force, which causes the straight blade to drive the power clamp to squeeze the elastic component inside the positioning frame plate to shrink and deform. At the moment when the straight blade contacts the ground, it can form an adjustment displacement, thus giving the straight blade a good buffer adjustment effect. Therefore, it reduces the disadvantage of the straight blade directly contacting the hard ground and easily causing impact bending. In this way, the straight blade is improved to have good adaptive elastic deformation avoidance when working, thus protecting the straight blade and adapting to different soil conditions, thereby improving the overall service life.

[0013] (2) The adaptive adjustment device of the straight blade returning machine allows the operator to control the positioning screw to connect with the threaded connection of the auxiliary frame plate, and to make the positioning screw connect through the connecting groove on the power clamp plate and the inner groove on the positioning plate, thereby assembling the straight blade plate and the positioning frame plate. This method ensures the ease of replacing the straight blade plate, thus ensuring the convenience of replacing and maintaining the straight blade plate after it is damaged, and reducing the cumbersome operation of cutting and welding required for the replacement of the traditional straight blade plate. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the adaptive adjustment device for a straight blade reamer according to the present invention;

[0016] Figure 2 This is a schematic diagram of the main body structure of the fertilization machine of this utility model;

[0017] Figure 3 This is a schematic diagram of the straight blade plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the planar structure of the straight blade plate of this utility model;

[0019] Figure 5 This is a schematic diagram of the planar structure of the positioning frame plate of this utility model.

[0020] Reference numerals in the attached drawings: 1. Main body of the reamer; 2. Support rod; 3. Discharge plate; 4. Rotating roller; 5. Straight blade; 6. Positioning frame plate; 7. First groove; 8. Power clamping plate; 9. Second groove; 10. Positioning clamping plate; 11. Inner groove opening; 12. Positioning screw; 13. Auxiliary frame plate; 14. Connecting groove; 15. Auxiliary support rod; 16. Elastic component. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-5 This utility model provides a technical solution: an adaptive adjustment device for a straight blade soil return machine, including a soil return machine body 1, a support rod 2 welded to the surface of the soil return machine body 1, and a discharge plate 3 rotatably installed on the inner side of the soil return machine body 1. The support rod 2 is used to assist the soil return machine body 1 in installation, while the discharge plate 3 is used to shield and crush soil clods. The soil return machine body 1 is an existing structure and will not be described in detail here.

[0026] Furthermore, a rotating roller 4 is rotatably installed on the inner side of the reamer body 1, and a straight blade 5 is provided on the surface of the rotating roller 4. The function of the straight blade 5 is to loosen the soil on the ground.

[0027] Furthermore, a positioning frame plate 6 is welded and installed on the surface of the rotating roller 4. A first groove 7 is provided on the inner side of the positioning frame plate 6. A power clamping plate 8 is slidably installed on the inner wall of the first groove 7. A second groove 9 is provided on the inner side of the power clamping plate 8. A positioning card 10 is slidably installed on the inner wall of the second groove 9. The surface of the positioning card 10 is welded and installed on the surface of the straight blade plate 5. By matching and docking the positioning card 10 on the straight blade plate 5 with the second groove 9 on the power clamping plate 8, the straight blade plate 5 and the positioning frame plate 6 can be initially positioned and combined.

[0028] Furthermore, the positioning plate 10 has an inner groove 11 on its surface, and a positioning screw 12 is slidably installed on the inner wall of the inner groove 11. An auxiliary frame plate 13 is slidably installed on the inner side of the positioning frame plate 6, and the positioning screw 12 is threaded on the inner side of the auxiliary frame plate 13. The power clamp plate 8 is fixedly installed on the surface of the auxiliary frame plate 13, and a connecting groove 14 is opened on the inner side of the power clamp plate 8. The positioning screw 12 is slidably installed on the inner wall of the connecting groove 14. When the straight blade plate 5 needs to be replaced, the operator only needs to assemble the new straight blade plate 5 with the positioning frame plate 6. At this time, after the positioning plate 10 on the straight blade plate 5 aligns with the second groove 9 on the power clamp plate 8, the operator controls the positioning screw 12 to thread onto the auxiliary frame plate 13, and makes the positioning screw 12 pass through the connecting groove 14 on the power clamp plate 8 and the inner groove 11 on the positioning plate 10 to form an assembly between the straight blade plate 5 and the positioning frame plate 6. This method ensures the ease of replacing the straight blade plate 5, thus ensuring the convenience of replacing and maintaining the straight blade plate 5 after damage, and reducing the cumbersome operation of cutting and welding required for replacing the traditional straight blade plate 5.

[0029] Furthermore, an auxiliary support rod 15 is fixedly installed on the inner side of the positioning frame plate 6. The surface of the auxiliary support rod 15 is slidably installed on the inner side of the power clamping plate 8. An elastic component 16 is slidably sleeved on the surface of the auxiliary support rod 15. The two ends of the elastic component 16 are respectively fixedly installed on the inner side of the positioning frame plate 6 and the surface of the power clamping plate 8. When the soil is loosened by the operation of the returning soil machine body 1, the rotating roller 4 drives the straight blade 5 to rotate and break the soil. At the moment when the straight blade 5 contacts the ground, the straight blade 5 is subjected to external force, causing the straight blade 5 to drive the power clamping plate 8 to squeeze the elastic component 16 on the inner side of the positioning frame plate 6 and shrink and deform. At this moment when the straight blade 5 contacts the ground, it can form an adjustment displacement, thereby giving the straight blade 5 a good buffer adjustment effect. Therefore, it reduces the disadvantage of the straight blade 5 being easily impacted and bent by direct contact with hard objects on the ground. In this way, the straight blade 5 is improved to have good adaptive elastic deformation avoidance when working, thereby protecting the straight blade 5 and adapting to different soil conditions, thereby improving the overall service life.

[0030] Working principle: A straight blade trowel machine adaptive adjustment device, when the trowel machine body 1 is working to loosen the soil, the rotating roller 4 drives the straight blade 5 to rotate and break the soil. When the straight blade 5 contacts the ground, the straight blade 5 is subjected to external force, causing the straight blade 5 to drive the power clamp 8 to compress the elastic component 16 inside the positioning frame plate 6 and deform. At this moment when the straight blade 5 contacts the ground, it can form an adjustment displacement, thereby giving the straight blade 5 good buffer adjustment.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adaptive adjustment device for a straight blade trowel, comprising a trowel body (1), characterized in that: The inner side of the reamer body (1) is rotatably mounted with a rotating roller (4). A straight blade plate (5) is provided on the surface of the rotating roller (4). A positioning frame plate (6) is welded and installed on the surface of the rotating roller (4). A first groove (7) is opened on the inner side of the positioning frame plate (6). A power clamp plate (8) is slidably installed on the inner wall of the first groove (7). An auxiliary frame rod (15) is fixedly installed on the inner side of the positioning frame plate (6). The surface of the auxiliary frame rod (15) is slidably installed on the inner side of the power clamp plate (8). An elastic component (16) is slidably sleeved on the surface of the auxiliary frame rod (15). The two ends of the elastic component (16) are respectively fixedly installed on the inner side of the positioning frame plate (6) and the surface of the power clamp plate (8).

2. The adaptive adjustment device for a straight blade returning machine according to claim 1, characterized in that: The inner side of the power clamp (8) is provided with a second groove (9), and a positioning plate (10) is slidably installed on the inner wall of the second groove (9). The surface of the positioning plate (10) is welded to the surface of the straight blade plate (5).

3. The adaptive adjustment device for a straight blade returning machine according to claim 2, characterized in that: The surface of the positioning plate (10) is provided with an inner groove (11), and a positioning screw (12) is slidably installed on the inner wall of the inner groove (11).

4. The adaptive adjustment device for a straight blade returning machine according to claim 3, characterized in that: An auxiliary frame plate (13) is slidably installed on the inner side of the positioning frame plate (6), and the surface threads of the positioning screw (12) are installed on the inner side of the auxiliary frame plate (13). The surface of the power clamp plate (8) is fixedly installed on the surface of the auxiliary frame plate (13).

5. The adaptive adjustment device for a straight blade returning machine according to claim 4, characterized in that: The inner side of the power clamp (8) is provided with a connecting groove (14), and the surface of the positioning screw (12) is slidably installed on the inner wall of the connecting groove (14).

6. The adaptive adjustment device for a straight blade reamer according to claim 1, characterized in that: The surface of the fertilizing machine body (1) is welded with a support rod (2), and a discharge plate (3) is rotatably installed on the inner side of the fertilizing machine body (1).