Flange fork structure for farming machinery

Abstract

The utility model relates to the technical field of farm machinery flange forks, and discloses a farm machinery flange fork structure which comprises a flange base portion, a groove is formed in the inner wall of the flange base portion, a limiting protrusion is fixedly connected to the inner wall of the groove, a fixing column is connected to the inner wall of the groove in an inserted mode, and a limiting groove is formed in the lower end of the fixing column. The fixing columns are inserted into the grooves, the limiting grooves and the limiting protrusions are aligned and connected in an inserted mode, preliminary limiting of the fixing columns is achieved, then the fastening screws penetrate through the through holes corresponding to the fastening screws one by one and are screwed into the inner walls of the fixing columns, and therefore the fixing columns are fixed. The flange base or the yoke can be conveniently and independently replaced subsequently, so that the maintenance cost is greatly reduced, the waste of material resources is reduced, the practicability in actual use is improved, the stress is more uniform due to the circumferential distribution design of the four fastening screws, the local stress concentration is reduced, and the durability of the whole structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange forks for farming machinery, in particular to a flange fork structure for farming machinery. Background Art

[0002] The flange fork is a common component in agricultural machinery, usually used for connection and torque transmission. It consists of a flange plate and a flange bracket. The flange plate is fixedly connected to the flange bracket and forms a receiving groove for accommodating the cross shaft. The two ends of the cross shaft are rotatably connected to the flange bracket. This design allows the flange fork to flexibly adapt to different working angles when rotating. The design of the flange fork helps to improve the operational flexibility and durability of agricultural machinery.

[0003] Announcement No. CN211175087U discloses a flange fork structure for a universal coupling. By forming a reinforcing rib structure at the base of the flange, and setting a transition circular surface of the reinforcing rib structure to be coplanar with the support arm, the bearing force borne by the base of the flange can be shared by the support arm. The flange base cooperates with the reinforcing rib to further increase the thickness, thereby improving the overall strength and rigidity, and the force performance is better, avoiding the problem of easy cracking of the traditional structure, and greatly improving the service life. In addition, the distance between the center of the cross shaft body mounting hole and the flange base is reduced compared with the traditional structure, so that the material is greatly saved.

[0004] However, the flange base and the support arm of the flange fork structure of the universal coupling are integrally formed, which means that once a part is damaged, the entire component needs to be replaced instead of replacing the damaged part alone, which not only increases maintenance costs but also leads to material waste. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a flange fork structure for agricultural machinery.

[0006] The utility model is implemented by the following technical scheme: a flange fork structure for agricultural machinery, comprising a flange base, an inner wall of the flange base is provided with a groove, the inner wall of the groove is fixedly connected to a limiting protrusion, a fixing column is inserted into the inner wall of the groove, a limiting groove is provided at the lower end of the fixing column, a joint fork is fixedly connected to the top of the fixing column, a through hole is provided on the inner wall of the flange base, and a fastening screw is arranged inside the through hole.

[0007] Through the above technical solution, the groove is limited to its limiting protrusion and plugged in, so as to preliminarily limit the stability of the fixing column, which is convenient for the subsequent installation and fixation of the fixing column and improves the efficiency during installation. The fixing column is fixed by tightening the bolts and the inner wall thread connection of the fixing column, which is convenient for the subsequent replacement of the flange base or the fork and reduces the waste of material resources.

[0008] As a further improvement of the above solution, the surface of the limiting protrusion is plugged into the inner wall of the limiting groove, and the number of the limiting protrusions is four, and the four limiting protrusions are distributed around the groove as a circle.

[0009] Through the above technical solution, the limiting effect of the fixing column is improved by the four limiting protrusions, so that the stability during use is improved.

[0010] As a further improvement of the above solution, the number of the limiting grooves corresponds to the limiting protrusions, and one end of the fastening screw is threadedly connected to the inner wall of the fixing column.

[0011] As a further improvement of the above solution, the number of the fastening screws is four, and the four fastening screws are distributed around the flange base.

[0012] Through the above technical solution, the circumferential distribution design of the four fastening screws makes the force more uniform, reduces local stress concentration, and improves the durability of the overall structure.

[0013] As a further improvement of the above solution, an arched reinforcing rib is fixedly connected to the inner wall of the yoke.

[0014] Through the above technical solution, the design of the arched reinforcement ribs increases the strength of the yoke, making it more able to withstand heavy loads in agricultural operations and improving stability during use.

[0015] As a further improvement of the above solution, the inner walls of the yoke and the arched reinforcement ribs are both provided with through holes, and both ends of the yoke are provided with shaft body mounting holes.

[0016] Through the above technical solution, the shaft body mounting hole is used for the yoke to be connected with other mechanical components through the shaft to achieve power transmission and mechanical movement.

[0017] As a further improvement of the above solution, a threaded hole is provided on the inner wall of the flange base, and a plurality of threaded holes are provided.

[0018] Through the above technical solution, the design of the threaded hole allows the flange base to be easily connected to other mechanical components, and is also convenient for maintenance and replacement.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model provides a limiting protrusion, a fixing column, a threaded rod and an arched reinforcement rib. Specifically, the fixing column is inserted into the interior of the groove so that the limiting groove is aligned with and plugged into the limiting protrusion to achieve preliminary limiting of the fixing column. Then, the fastening screws are passed through the corresponding through holes one by one and are screwed into the inner wall of the fixing column to fix the fixing column, which is convenient for subsequent separate replacement of the flange base or the yoke, thereby greatly reducing maintenance costs and reducing the waste of material resources, and improving practicality in actual use. The circumferential distribution design of the four fastening screws makes the force more uniform, reduces local stress concentration, and improves the durability of the overall structure. The arched reinforcement ribs on the inner wall of the yoke increase the strength and stability of the structure, which helps to resist high-intensity working conditions in agricultural operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the utility model from top view.

[0026] Description of main symbols:

[0027] 1. Flange base; 2. Groove; 3. Limiting protrusion; 4. Fixing column; 5. Limiting groove; 6. Yoke; 7. Arched reinforcement rib; 8. Through hole; 9. Shaft body mounting hole; 10. Fastening screw; 11. Through hole; 12. Threaded hole. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] Example:

[0030] Please combine Figure 1-5The flange fork structure of a farming machinery of the present embodiment comprises a flange base 1, a groove 2 is provided on the inner wall of the flange base 1, a limiting protrusion 3 is fixedly connected to the inner wall of the groove 2, a fixing column 4 is inserted into the inner wall of the groove 2, a limiting groove 5 is provided at the lower end of the fixing column 4, a yoke 6 is fixedly connected to the top of the fixing column 4, a through hole 11 is provided on the inner wall of the flange base 1, a fastening screw 10 is provided inside the through hole 11, the fixing column 4 is inserted into the interior of the groove 2, the limiting groove 5 is aligned with the limiting protrusion 3 and plugged, so as to realize the preliminary limiting of the fixing column 4, and then the fastening screws 10 are passed through the corresponding through holes 11 one by one, and are screwed into the inner wall of the fixing column 4, so as to fix the fixing column 4, so as to facilitate the subsequent separate replacement of the flange base 1 or the yoke 6, thereby greatly reducing the maintenance cost, reducing the waste of material resources, and improving the practicality in actual use.

[0031] The surface of the limiting protrusion 3 is plugged into the inner wall of the limiting groove 5 . There are four limiting protrusions 3 , which are distributed around the groove 2 .

[0032] The number of the limiting grooves 5 corresponds to the limiting protrusions 3 , and one end of the fastening screw 10 is threadedly connected to the inner wall of the fixing column 4 .

[0033] There are four fastening screws 10 , which are distributed around the flange base 1 circumferentially. The circumferential distribution design of the four fastening screws 10 makes the force more uniform, reduces local stress concentration, and improves the durability of the overall structure.

[0034] The inner wall of the yoke 6 is fixedly connected with an arched reinforcement rib 7, and the arched reinforcement rib 7 on the inner wall of the yoke 6 increases the strength and stability of the structure, which helps to resist high-intensity working conditions in farming operations.

[0035] The inner walls of the yoke 6 and the arched reinforcement rib 7 are both provided with through holes 8 , and both ends of the yoke 6 are provided with shaft body mounting holes 9 .

[0036] The inner wall of the flange base 1 is provided with threaded holes 12 , and a plurality of threaded holes 12 are provided.

[0037] The implementation principle of a flange fork structure for agricultural machinery in the embodiment of the present application is as follows: during installation, the fixing column 4 is first inserted into the interior of the groove 2, so that the limiting groove 5 is aligned and plugged with the limiting protrusion 3 to achieve preliminary limiting of the fixing column 4, and then the fastening screws 10 are passed through the corresponding through holes 11 one by one, and are screwed into the inner wall of the fixing column 4, so as to fix the fixing column 4, which is convenient for the subsequent separate replacement of the flange base 1 or the yoke 6, thereby greatly reducing the maintenance cost and the waste of material resources, and improving the practicality in actual use. The circumferential distribution design of the four fastening screws 10 makes the force more uniform, reduces local stress concentration, and improves the durability of the overall structure. The arched reinforcement ribs 7 on the inner wall of the yoke 6 increase the strength and stability of the structure, which helps to resist the high-intensity working conditions in agricultural operations.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A flange fork structure for agricultural machinery, characterized in that: The invention comprises a flange base (1), the inner wall of the flange base (1) is provided with a groove (2), the inner wall of the groove (2) is fixedly connected with a limiting protrusion (3), the inner wall of the groove (2) is plugged with a fixing column (4), the lower end of the fixing column (4) is provided with a limiting groove (5), the top of the fixing column (4) is fixedly connected with a yoke (6), the inner wall of the flange base (1) is provided with a through hole (11), and a fastening screw (10) is arranged inside the through hole (11).

2. A flange fork structure for agricultural machinery according to claim 1, characterized in that: The surface of the limiting protrusion (3) is plugged into the inner wall of the limiting groove (5), and there are four limiting protrusions (3), which are distributed around the groove (2) in a circle.

3. The flange fork structure for agricultural machinery according to claim 1, characterized in that: The number of the limiting grooves (5) corresponds to the limiting protrusions (3), and one end of the fastening screw (10) is threadedly connected to the inner wall of the fixing column (4).

4. A flange fork structure for agricultural machinery as claimed in claim 3, characterized in that: The number of the fastening screws (10) is four, and the four fastening screws (10) are distributed around the flange base (1).

5. The flange fork structure for agricultural machinery according to claim 1, characterized in that: An arched reinforcing rib (7) is fixedly connected to the inner wall of the yoke (6).

6. A flange fork structure for agricultural machinery as claimed in claim 5, characterized in that: The inner walls of the yoke (6) and the arched reinforcing rib (7) are both provided with through holes (8), and both ends of the yoke (6) are provided with shaft body mounting holes (9).

7. The flange fork structure for agricultural machinery according to claim 4, characterized in that: The inner wall of the flange base (1) is provided with a threaded hole (12), and a plurality of the threaded holes (12) are provided.

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