Damping gear transmission shaft

Abstract

The utility model relates to the technical field of gear transmission shafts, in particular to a damping gear transmission shaft which comprises a transmission shaft, a driving gear and a driven gear, the driving gear and the driven gear are connected with the transmission shaft, and the two ends of the transmission shaft are provided with a first spline body and a second spline body which are in spline connection with the driving gear and the driven gear respectively. A plurality of spline teeth are evenly arranged on the outer end face of the first spline body in a surrounding mode, and a damping structure is arranged between each spline tooth and the first spline body. The installation groove is formed in the end face, connected with the driving gear spline, of the first spline body, the gap is reserved between the spline teeth of the first spline body and the installation groove and filled with the shock absorption block, vibration generated by the driving gear is buffered by the buffer gap and absorbed by the shock absorption block, and vibration diffusion is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gear transmission shafts, in particular to a shock-absorbing gear transmission shaft. Background Art

[0002] The gear transmission shaft is a core component in the gear transmission system, which is responsible for transmitting the power of the driving gear to the driven gear at the other end. However, during use, the driving gear driven by the motor output shaft often vibrates at the spline coupling connection with the transmission shaft, and spreads to other related transmission components, which can easily cause the transmission connection to separate and affect the stability of the entire transmission system. Utility Model Content

[0003] In order to solve the problems in the above-mentioned background technology, the utility model provides a shock-absorbing gear transmission shaft.

[0004] The solution adopted by the utility model to solve its technical problems is: a shock-absorbing gear transmission shaft, including a transmission shaft and a driving gear and a driven gear connected to the transmission shaft, wherein two ends of the transmission shaft are provided with a first spline body and a second spline body respectively connected to the driving gear and the driven gear by splines, a plurality of spline teeth are evenly arranged around the outer end surface of the first spline body, and a shock-absorbing structure is provided between each of the spline teeth and the first spline body.

[0005] By adopting the above technical solution, a shock-absorbing structure is provided between the spline teeth and the first spline body, which can absorb the vibration generated by the driving gear driven by the motor and the vibration caused by the collision between the splines, thereby avoiding transmission instability, excessive noise and accelerated wear of components caused by vibration of the gear transmission shaft during operation.

[0006] Furthermore, the shock absorbing structure includes a plurality of mounting grooves provided on the end surface of the first spline body for mounting the spline teeth and being able to slide up and down, and a shock absorbing block provided at the bottom of the mounting groove for filling the gap, and the bottom of the spline teeth abuts against the shock absorbing block.

[0007] By adopting the above technical solution, the spline teeth that are in direct contact with the driving gear are arranged to float slightly up and down in the first spline body mounting groove after installation, and elastic shock-absorbing blocks are filled in the floating gap. When the spline teeth are in contact with the driving gear, the vibration transmitted to the spline teeth is absorbed and consumed by the elastic deformation of the shock-absorbing blocks to achieve a shock-absorbing effect.

[0008] Furthermore, a shock-absorbing gasket is provided on the end surface of the first spline body between each spline tooth.

[0009] By adopting the above technical solution, when the gear rotates, the shock-absorbing gasket can effectively absorb the vibration generated by the meshing of the spline teeth, further reducing the vibration and noise between the gear and the transmission shaft, so that the transmission shaft can better transmit power.

[0010] Furthermore, the first spline body and the second spline body are both integrally formed with the transmission shaft.

[0011] By adopting the above technical solution, the overall structural strength and rigidity of the transmission shaft can be improved.

[0012] Furthermore, the shock absorbing block and the shock absorbing pad are both made of flexible rubber material.

[0013] By adopting the above technical solution, vibration can be effectively absorbed to reduce the transmission of vibration, thereby reducing vibration and noise during the transmission process. It also has anti-fatigue performance and can maintain a stable shock absorption effect under repeated stress and continuous deformation.

[0014] Furthermore, the bottom of the shock absorbing block and the shock absorbing pad are both provided with mounting soft rubber.

[0015] By adopting the above technical solution, the gap between the shock absorbing block and the first spline body can be filled, loosening or increase of the gap due to vibration can be avoided, and the stability of the shock absorbing structure can be effectively improved.

[0016] In summary, the beneficial effects of the utility model are as follows: the utility model provides a shock-absorbing structure consisting of a mounting groove and a shock-absorbing block that allows the spline teeth to slide up and down on the first spline body connected to the driving gear, and then cooperates with shock-absorbing gaskets between the spline teeth to ensure that vibration energy can be absorbed during the rotation and meshing of the gears, thereby significantly reducing the vibration, noise and component wear of the transmission shaft.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded schematic diagram of this embodiment;

[0019] Figure 2 is a cross-sectional view of this embodiment;

[0020] Figure 3 It is an overall schematic diagram of this embodiment.

[0021] In the figure: 1. transmission shaft; 2. driving gear; 3. driven gear; 4. first spline body; 5. second spline body; 6. spline teeth; 7. shock absorbing structure; 71. mounting groove; 72. shock absorbing block; 8. shock absorbing gasket; 9. mounting soft rubber. DETAILED DESCRIPTION

[0022] In order to make the content of the utility model more clearly understood, the utility model is further described below based on specific embodiments in combination with the accompanying drawings.

[0023] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0024] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0025] like Figures 1 to 3 As shown, a shock-absorbing gear transmission shaft 1 is intended to solve the problem that excessive vibration during the transmission process affects stability, and includes a transmission shaft 1 and a driving gear 2 and a driven gear 3 connected to the transmission shaft 1, wherein the two ends of the transmission shaft 1 of this embodiment are provided with a first spline body 4 and a second spline body 5 which are spline-connected to the driving gear 2 and the driven gear 3 respectively, and a plurality of spline teeth 6 are evenly arranged around the outer end surface of the first spline body 4, and a shock-absorbing structure 7 is provided between each spline tooth 6 and the first spline body 4.

[0026] In this embodiment, a shock absorbing structure 7 is mainly provided between each spline tooth 6 in contact with the driving gear 2 and the first spline body 4, which can effectively overcome the problems of unstable transmission, excessive noise and increased wear of components caused by the vibration of the driving gear 2 driven by the motor during the operation of the gear transmission shaft 1, thereby improving the stability and durability of the entire transmission system and making the entire transmission process smooth and stable.

[0027] like Figure 2As shown, specifically, the shock absorbing structure 7 of this embodiment includes a plurality of mounting grooves 71 arranged on the end surface of the first spline body 4 for mounting each spline tooth 6 and being able to slide up and down, and a shock absorbing block 72 arranged at the bottom of the mounting groove 71 for filling the gap as a buffer, and the bottom of the spline tooth 6 abuts against the shock absorbing block 72. The spline tooth 6 in direct contact with the driving gear 2 is arranged to float slightly up and down in the mounting groove 71 of the first spline body 4 after installation, and the elastic shock absorbing block 72 is filled in the floating gap, so that when the spline tooth 6 contacts the driving gear 2, the vibration transmitted to the spline tooth 6 is absorbed and consumed by the elastic deformation of the shock absorbing block 72 to achieve the shock absorbing effect.

[0028] like Figure 2 As shown, the first spline body 4 of this embodiment is provided with a shock-absorbing gasket 8 on the end surface between the spline teeth 6. When the gear rotates, the shock-absorbing gasket 8 can effectively absorb the vibration generated by the mutual meshing of the spline teeth 6, further reducing the vibration and noise between the gear and the transmission shaft 1, so that the transmission shaft 1 can better transmit power.

[0029] like Figure 1 and Figure 3 As shown, in order to improve the overall structural strength and rigidity of the transmission shaft 1, the first spline body 4 and the second spline body 5 of this embodiment are both integrally formed with the transmission shaft 1. And the shock absorbing block 72 and the shock absorbing pad are both made of flexible rubber material. The flexible rubber material has a good elastic modulus and damping coefficient, which can effectively absorb and disperse energy when impacted or vibrated, reduce the transmission of vibration, and thus reduce vibration and noise during the transmission process. And it has anti-fatigue performance, and can maintain a stable shock absorbing effect even under repeated stress and continuous deformation, thereby extending the service life of the shock absorbing component.

[0030] like Figure 2 As shown, the shock absorbing block 72 and the bottom of the shock absorbing pad of this embodiment are both provided with a mounting soft glue 9. The good compliance and adhesion of the mounting soft glue 9 can fill the small gap between the shock absorbing block 72 and the first spline body 4, ensure that the two are in close contact, avoid looseness or gap increase caused by vibration, and effectively improve the stability of the shock absorbing structure 7.

[0031] In summary, the beneficial effects of this embodiment are as follows: this embodiment provides a shock-absorbing structure 7 on the first spline body 4 connected to the driving gear 2, which is composed of a mounting groove 71 that allows the spline teeth 6 to achieve up and down micro-movement and an elastic shock-absorbing block 72 filled in the bottom of the groove and abutting the spline teeth 6 for shock absorption, and then cooperates with the shock-absorbing gaskets 8 between the spline teeth 6 to ensure that vibration energy can be absorbed during the rotation and meshing of the gears, so as to significantly reduce the vibration, noise and component wear of the transmission shaft 1.

[0032] The embodiments described above are only preferred implementation modes of the present utility model and cannot be used to limit the protection scope of the present utility model. Any non-substantial changes and modifications made by technicians in this field on the basis of the utility model shall fall within the protection scope of the present utility model.

Claims

1. A damping gear transmission shaft, comprising a transmission shaft and a driving gear and a driven gear connected to the transmission shaft, characterized in that: The transmission shaft has a first spline body and a second spline body respectively connected to the driving gear and the driven gear by splines at both ends. The outer end surface of the first spline body is evenly surrounded by a plurality of spline teeth, and a shock absorbing structure is provided between each spline tooth and the first spline body.

2. A damping gear transmission shaft according to claim 1, characterized in that: The shock absorbing structure includes a plurality of installation grooves provided on the end surface of the first spline body for installing the spline teeth and being able to slide up and down, and a shock absorbing block provided at the bottom of the installation groove for filling the gap, and the bottom of the spline teeth abuts against the shock absorbing block.

3. A damping gear transmission shaft according to claim 2, characterized in that: A shock-absorbing gasket is disposed on the end surface of the first spline body between the spline teeth.

4. A damping gear transmission shaft according to claim 3, characterized in that: The first spline body and the second spline body are both integrally formed with the transmission shaft.

5. A damping gear transmission shaft according to claim 4, characterized in that: The shock absorbing block and the shock absorbing pad are both made of flexible rubber material.

6. A damping gear transmission shaft according to claim 5, characterized in that: The bottom of the shock absorbing block and the shock absorbing pad are both provided with mounting soft rubber.

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