Maintenance-free agricultural machinery transmission shaft

Abstract

The utility model relates to the technical field of agricultural machinery transmission shafts, and discloses a maintenance-free agricultural machinery transmission shaft which comprises a double-groove embedded pulse double welding seam, a sliding key shaft is rotatably connected to the middle of the inner side of the double-groove embedded pulse double welding seam, and welding fork heads are rotatably connected to the left end and the right end of the sliding key shaft. An oil seal universal joint is rotationally connected to the middle of the outward side of the welding fork head, a connecting fork head is rotationally connected to the outer wall of the oil seal universal joint, a carburizing pin shaft is installed on the outward side of the connecting fork head, and a steel wire cover is arranged on the left side of the outer wall of the double-groove embedded pulse double welding seam to achieve double-layer dust prevention. According to the utility model, the sealing and rotating functions are combined through the double-groove embedded pulse double welding seams and the oil seal universal joint, and the carburizing pin shaft is subjected to a special carburizing treatment process, so that the surface hardness and the wear resistance are improved, the long-term stable operation of a transmission part is ensured, the universal joint can be suitable for various vehicle types, the maintenance cost is reduced, and the universal joint is convenient for operators to use.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery drive shafts, in particular to a maintenance-free agricultural machinery drive shaft. Background Art

[0002] A maintenance-free agricultural machinery drive shaft is a high-performance transmission component specially designed for agricultural machinery. The maintenance-free agricultural machinery drive shaft is made of high-strength alloy steel or high-quality carbon steel, and has excellent tensile strength and torsional resistance. These materials can withstand the heavy load and high torque requirements of agricultural machinery in harsh working environments, ensuring the reliability and durability of the drive shaft.

[0003] In the process of agricultural product processing, such as grain processing and fruit and vegetable processing, various machines are also needed for processing. The maintenance-free agricultural machinery drive shaft can provide power transmission for these machines to ensure the smooth progress of the processing. For example, the flour mill and dryer in grain processing can be connected to the motor through the drive shaft to achieve efficient processing production.

[0004] In agricultural production, it is often necessary to transport agricultural products and agricultural materials. After long-term use, the accessories on agricultural machinery need to be replaced, such as drive shafts, shaft tubes, universal joints and spline shafts. Therefore, the existing drive shafts cannot adapt to multiple vehicle models, resulting in separate maintenance and upkeep. This not only increases the workload of maintenance, but also requires storing different specifications of spare parts, thus increasing the maintenance cost. Therefore, it is not convenient for operators to use. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a maintenance-free agricultural machinery drive shaft, aiming to improve the problems in the prior art that the drive shaft cannot adapt to multiple vehicle models, resulting in separate maintenance and upkeep, which not only increases the workload of maintenance, but also requires storing different specifications of spare parts, thus increasing the maintenance cost.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a maintenance-free agricultural machinery drive shaft, including a double-groove embedded pulse double weld. A sliding key shaft is rotatably connected to the middle part inside the double-groove embedded pulse double weld. Welding fork heads are rotatably connected to both the left and right ends of the sliding key shaft. A sealed oil universal joint is rotatably connected to the middle part on the outer side of the welding fork head. A connecting fork head is rotatably connected to the outer wall of the sealed oil universal joint. A carburized pin shaft is installed on the outer side of the connecting fork head. A double-layer dust-proof steel wire cover is arranged on the left side of the outer wall of the double-groove embedded pulse double weld.

[0007] As a further description of the above technical solution:

[0008] Holes are respectively formed in the inner sides of the connecting fork heads and are rotatably connected to the corresponding sealed oil universal joints.

[0009] As a further description of the above technical solution:

[0010] A sliding key sleeve is threadedly connected to the left side of the double-groove embedded pulse double weld, and the left side of the sliding key sleeve is threadedly connected to the inner side of the double-layer dust-proof steel wire cover.

[0011] As a further description of the above technical solution:

[0012] Friction plates are fixedly connected to both the front and rear sides inside the connecting fork head.

[0013] As a further description of the above technical solution:

[0014] A plurality of the friction plates are all designed symmetrically.

[0015] As a further description of the above technical solution:

[0016] Bolts are threadedly connected to the rear sides of the carburized pin shafts.

[0017] As a further description of the above technical solution:

[0018] A plurality of the bolts are all arranged at the same horizontal height.

[0019] The present utility model has the following beneficial effects:

[0020] 1. In the present utility model, the combination of the double-groove embedded pulse double weld and the oil seal universal joint combines the sealing and rotating functions, ensuring the stable operation of the transmission. The sliding key sleeve reduces the maintenance cost with wear resistance and self-lubricating performance. The combination of high strength and high precision of the welding fork head ensures the firmness and stability of the connection part. The carburized pin shaft improves the surface hardness and wear resistance through a special carburizing treatment process, ensuring the long-term stable operation of the transmission components, being suitable for a variety of vehicle models, reducing the maintenance cost at the same time, and being convenient for the operation of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front-side perspective view of the sliding key sleeve of the maintenance-free agricultural machinery transmission shaft proposed by the present utility model;

[0022] Figure 2 It is an exploded view of the connection fork head of the maintenance-free agricultural machinery transmission shaft proposed by the present utility model;

[0023] Figure 3 It is a partial structural diagram of the sliding key sleeve of the maintenance-free agricultural machinery transmission shaft proposed by the present utility model;

[0024] Figure 4 It is a structural display diagram of the friction plate of the maintenance-free agricultural machinery transmission shaft proposed by the present utility model;

[0025] Figure 5Schematic diagram of the sliding key sleeve structure of the maintenance-free agricultural machinery transmission shaft proposed by the present utility model.

[0026] Legend:

[0027] 1. Double-groove embedded pulse double weld; 2. Oil seal universal joint; 3. Sliding key sleeve; 4. Double-layer dust-proof wire cover; 5. Sliding key shaft; 6. Welding fork head; 7. Connecting fork head; 8. Carburized pin shaft; 9. Friction plate; 10. Bolt; 11. Hole. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0029] Please refer to the attached Figure 1 -attached Figure 3 As shown in the figure, an embodiment provided by the present utility model: a maintenance-free agricultural machinery transmission shaft includes a double-groove embedded pulse double weld 1. A sliding key shaft 5 is rotatably connected to the middle part of the inner side of the double-groove embedded pulse double weld 1. Welding fork heads 6 are rotatably connected to both the left and right ends of the sliding key shaft 5. An oil seal universal joint 2 is rotatably connected to the middle part of the outer side of the welding fork head 6. A connecting fork head 7 is rotatably connected to the outer wall of the oil seal universal joint 2. A carburized pin shaft 8 is installed on the outer side of the connecting fork head 7. A double-layer dust-proof wire cover 4 is arranged on the left side of the outer wall of the double-groove embedded pulse double weld 1. A sliding key sleeve 3 is threadedly connected to the left side of the double-groove embedded pulse double weld 1. The left side of the sliding key sleeve 3 is threadedly connected to the inner side of the double-layer dust-proof wire cover 4;

[0030] Specifically, through the middle part of the inner side of the double-groove embedded pulse double weld 1, a sliding key shaft 5 is designed to be rotatably connected. Welding fork heads 6 are equipped at both the left and right ends of this sliding key shaft 5, and these welding fork heads 6 can rotate freely. An oil seal universal joint 2 is installed in the middle part of the outer side of each welding fork head 6, enabling them to rotate flexibly. On the outer wall of the oil seal universal joint 2, a connecting fork head 7 is rotatably connected, and a carburized pin shaft 8 is installed on the outer side of these connecting fork heads 7 to ensure the stability and durability of the overall structure. Finally, a sliding key sleeve 3 is threadedly connected to the left side of the double-groove embedded pulse double weld 1. This sliding key sleeve 3 not only enhances the connection stability but also provides additional protection measures.

[0031] Please refer to the attached Figure 4 -attached Figure 5, holes 11 are provided on the inner side of the connecting fork head 7 towards the inner side. The inner side of the holes 11 is rotatably connected to the corresponding oil seal universal joint 2. Friction plates 9 are fixedly connected to the front and rear sides inside the connecting fork head 7. Multiple friction plates 9 are all designed symmetrically. Multiple bolts 10 are all arranged at the same horizontal height. Bolts 10 are threadedly connected to the rear sides of the carburized pin shafts 8;

[0032] Specifically, through the inner part of the connecting fork head 7, holes 11 are provided on the inner side towards the inner side. The inner sides of these holes 11 are rotatably connected to the corresponding oil seal universal joints 2, ensuring flexible movement between the two. Friction plates 9 are fixedly connected to the front and rear sides inside the connecting fork head 7. These friction plates 9 are designed with a symmetrical layout to ensure uniform and balanced stress, and in addition, it helps to maintain the stability and consistency of the overall structure. This connection method is not only firm but also convenient for disassembly and maintenance.

[0033] Working principle: Through the double-groove embedded pulse double weld 1, the welding parameters are precisely controlled to achieve pulse welding in two grooves simultaneously, ensuring the uniformity and strength of the weld, improving the welding quality and efficiency. The oil seal universal joint 2 combines the functions of sealing and rotation, and can maintain good lubrication and sealing effects under various complex working conditions, ensuring stable operation of the transmission. The sliding key sleeve 3 has wear resistance and self-lubricating performance, which can effectively extend the service life of the equipment and reduce the maintenance cost. The double-layer dust-proof wire cover 4 effectively blocks the intrusion of dust and particulate matter through the inner and outer two-layer protection structures, ensuring the cleanliness and normal operation of the internal mechanical components. The sliding key shaft 5 adopts high-strength materials and precision machining technology, with excellent load-bearing capacity and wear resistance, and can operate stably in harsh environments, ensuring the reliability of the equipment. The welding fork head 6 realizes the combination of high strength and high precision through advanced welding technology, ensuring the firmness and stability of the connection part. The connecting fork head 7 adopts high-strength alloy materials and precision machining technology, with excellent load-bearing capacity and durability, and can withstand large impacts and loads. The carburized pin shaft 8 improves the surface hardness and wear resistance through special carburizing treatment technology, ensuring the long-term stable operation of the transmission components and reducing the maintenance cost.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Maintenance-free agricultural machinery transmission shaft, including a double-groove embedded pulse double-weld (1), characterized in that: A sliding key shaft (5) is rotatably connected to the middle part of the inner side of the double-groove embedded pulse double weld (1). Welding forks (6) are rotatably connected to the left and right ends of the sliding key shaft (5). An oil seal universal joint (2) is rotatably connected to the middle part of the outer side of the welding fork (6). A connecting fork (7) is rotatably connected to the outer wall of the oil seal universal joint (2). A carburized pin shaft (8) is installed on the outer side of the connecting fork (7). A double-layer wire cover dust-proof structure (4) is arranged on the left side of the outer wall of the double-groove embedded pulse double weld (1).

2. The maintenance-free agricultural machinery transmission shaft according to claim 1, wherein: Holes (11) are formed in the inner sides of the inner sides of the connecting forks (7), and the inner sides of the holes (11) are rotatably connected to the corresponding oil seal universal joints (2).

3. The maintenance-free agricultural machinery transmission shaft according to claim 1, wherein: A sliding key sleeve (3) is threadedly connected to the left side of the double-groove embedded pulse double weld (1), and the left side of the sliding key sleeve (3) is threadedly connected to the inner side of the double-layer wire cover dust-proof structure (4).

4. The maintenance-free agricultural machinery transmission shaft according to claim 1, characterized in that: Friction plates (9) are fixedly connected to the front and rear sides inside the connecting forks (7).

5. The maintenance-free agricultural machinery transmission shaft according to claim 4, characterized in that: The plurality of friction plates (9) are all designed symmetrically.

6. The maintenance-free agricultural machinery transmission shaft according to claim 1, wherein: Bolts (10) are threadedly connected to the rear sides of the carburized pin shafts (8).

7. The maintenance-free agricultural machinery transmission shaft according to claim 6, wherein: The plurality of bolts (10) are all arranged at the same horizontal height.

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