A small-power power transmission elastic coupling device

Abstract

The present invention provides a small-power power transmission elastic coupling device, which includes a transmission device input shaft, a flexible disc assembly, a spacer, a transmission device housing, a power device housing, and a power output disc. The transmission device housing is connected to the power device housing through bolts and spring washers. Multiple flexible disc assemblies are arranged in parallel. An annular spacer is installed between the flexible disc assembly closest to the power output disc and the power output disc. The outer ring parts of each flexible disc assembly and the spacer are installed on the output end face of the power output disc through bolts and spring washers. The inner ring parts of each flexible disc assembly are installed on the end face of the transmission device input shaft through bolts and spring washers. The elastic coupling device of the present invention has a simple structure, is convenient to install, has low manufacturing and use costs, can effectively reduce vibration and prevent impact, and meets the requirements of small-power power transmission connection.

Description

Technical Field

[0001] The present invention belongs to the technical field of crawler vehicle transmission, and particularly relates to a small-power power transmission elastic coupling device. Background Art

[0002] At present, a Geislinger elastic coupling is commonly used for the power transmission coupling device of crawler vehicles in China. Its structure is complex, the installation is cumbersome, and the manufacturing cost is high. It is only applicable to the occasions of high-power power transmission. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] The present invention provides a small-power power transmission elastic coupling device to solve the technical problem of how to obtain an elastic coupling device with a simple structure, convenient installation, low manufacturing cost and suitable for small-power power transmission.

[0005] (2) Technical Solutions

[0006] To solve the above technical problems, the present invention provides a small-power power transmission elastic coupling device, which includes an input shaft of the transmission device, a flexible disk assembly, a spacer, a transmission device housing, a power device housing and a power output disk. Among them, the input shaft of the transmission device is installed in the transmission device housing, and the input shaft of the transmission device is supported and maintained in a relative position through the transmission device housing. The transmission device housing is fixedly installed. When power is transmitted to the input shaft of the transmission device, the input shaft of the transmission device rotates and transmits torque and rotational speed. The power output disk is installed in the power device housing, and the power output disk is supported and maintained in a relative position through the power device housing. The power of the power device is output through the power output disk to output torque and rotational speed. The transmission device housing is connected to the power device housing through bolts and spring washers. Multiple flexible disk assemblies are arranged in parallel, and an annular spacer is installed between the flexible disk assembly closest to the power output disk and the power output disk. The outer ring parts of each flexible disk assembly and the spacer are installed on the output end face of the power output disk through bolts and spring washers. The inner ring parts of each flexible disk assembly are installed on the end face of the input shaft of the transmission device through bolts and spring washers.

[0007] Furthermore, the flexible disk assembly includes a flexible disk, an inner ring pressing plate and an outer ring pressing plate. Among them, a plurality of wing-shaped grooves are evenly arranged along the circumferential direction of the flexible disk. The inner ring pressing plate is fixed to the inner ring on one side of the flexible disk, and the outer ring pressing plate is fixed to the outer ring on the other side of the flexible disk.

[0008] Furthermore, the bottom end of the wing-shaped groove is designed with a fillet with a radius of R20mm.

[0009] Furthermore, the inner ring pressing plate is welded to the inner ring on one side of the flexible disk, and the outer ring pressing plate is welded to the outer ring on the other side of the flexible disk.

[0010] Further, the flexible disk, the inner ring pressing plate, and the outer ring pressing plate are all made of 65Mn steel with a heat treatment hardness of HRC43 - 48.

[0011] Further, the thickness of the flexible disk, the inner ring pressing plate, and the outer ring pressing plate is 1.2 mm.

[0012] Further, there are three flexible disk assemblies in total.

[0013] (III) Beneficial effects

[0014] The present invention provides a small - power power - transmission elastic coupling device, which includes a transmission device input shaft, a flexible disk assembly, a spacer, a transmission device housing, a power device housing, and a power output disk. The transmission device housing is connected to the power device housing through bolts and spring washers. Multiple flexible disk assemblies are arranged in parallel. An annular spacer is installed between the flexible disk assembly closest to the power output disk and the power output disk; the outer - ring parts of each flexible disk assembly and the spacer are installed on the output end face of the power output disk through bolts and spring washers; the inner - ring parts of each flexible disk assembly are installed on the end face of the transmission device input shaft through bolts and spring washers. The elastic coupling device of the present invention has a simple structure, is easy to install, has low manufacturing and use costs, can effectively reduce vibration and prevent impact, and meets the requirements of small - power power - transmission connection. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of the transmission elastic coupling device according to an embodiment of the present invention;

[0016] Figure 2a is a left - view of the flexible disk assembly in an embodiment of the present invention, Figure 2b is a main - view cross - sectional view, Figure 2c is a right - view;

[0017] Figure 3a is a side - view of the flexible disk in an embodiment of the present invention, Figure 3b is a main - view cross - sectional view. Detailed implementation manners

[0018] To make the purpose, content, and advantages of the present invention clearer, the following further describes the detailed implementation manners of the present invention in combination with the drawings and embodiments.

[0019] This embodiment provides a small - power power - transmission elastic coupling device, as Figure 1 shown. The elastic coupling device mainly includes a transmission device input shaft 1, a first bolt 2, a first spring washer 3, three flexible disk assemblies 4, a spacer 5, a second bolt 6, a second spring washer 7, a transmission device housing 8, a third bolt 9, a third spring washer 10, a power device housing 11, and a power output disk 12.

[0020] The input shaft 1 of the transmission device is installed in the transmission device housing 8. The input shaft 1 of the transmission device is supported and its relative position is maintained by the transmission device housing 8. The transmission device housing 8 is fixedly installed. When power is transmitted to the input shaft 1 of the transmission device, the input shaft 1 of the transmission device rotates and transmits torque and rotational speed. The power output disk 12 is installed in the power device housing 11. The power output disk 12 is supported and its relative position is maintained by the power device housing 11. The power of the power device is output through the power output disk 12 in terms of torque and rotational speed. The transmission device housing 8 is connected to the power device housing 11 by the third bolts 9 and the third spring washers 10.

[0021] The three-piece flexible disk assembly 4 is arranged in parallel. The annular spacer 5 is installed between one flexible disk assembly 4 closest to the power output disk 12 and the power output disk 12. The outer ring part of the three-piece flexible disk assembly 4 and the spacer 5 are installed on the output end face of the power output disk 12 by the second bolts 6 and the second spring washers 7. The inner ring part of the three-piece flexible disk assembly 4 is installed on the end face of the input shaft 1 of the transmission device by the first bolts 2 and the first spring washers 3. Through the above connections, the power transmission integrated assembly is completed and power transmission is achieved, with a simple structure and convenient installation.

[0022] Power is transmitted from the power output disk 12 of the power device to the input shaft 1 of the transmission device through the second bolts 6, the three-piece flexible disk assembly 4, and the first bolts 2, realizing the power transmission of the transmission device. The functions of vibration reduction and shock prevention are achieved through the design of the flexible disk assembly 4 and the spacer 5.

[0023] As Figures 2a to 2c shown, each flexible disk assembly 4 includes a flexible disk 13, one inner ring pressing plate 14, and six outer ring pressing plates 15. As Figure 3a and 3b shown, the flexible disk 13 is evenly provided with 6 wing-shaped grooves 16 in the circumferential direction. The bottom end of the wing-shaped groove 16 is designed with a fillet with a radius of R20mm. Through this structure, it is more conducive to reducing torsional vibration and shock. The fillet design with a radius of R20mm can ensure the strength requirements of the flexible disk 13 and avoid cracks at the root of the groove and failure caused by long-term use.

[0024] The inner ring pressing plate 14 is welded to the inner ring on one side of the flexible disk 13, and the outer ring pressing plates 15 are welded to the outer ring on the other side of the flexible disk 13. The inner ring pressing plate 14 and the outer ring pressing plates 15 are used to ensure the pressing connection of the bolts on the one hand and the gap between adjacent two flexible disk assemblies 4 on the other hand. By adding a spacer 5 between the flexible disk assembly 4 closest to the power output disk 12 and the power output disk 12, a gap can also be formed between the flexible disk assembly 4 and the power output disk 12. This gap can provide space for the axial elastic deformation and energy absorption of the flexible disk assembly 4 during power input, thus achieving the functions of vibration reduction and shock prevention.

[0025] The flexible disk 13, the inner ring pressing plate 14 and the outer ring pressing plate 15 are all made of 65Mn steel with a thickness of 1.2 mm and a heat treatment hardness of HRC 43 - 48. The materials used and the heat treatment of the materials can ensure the strength requirements for torque transmission. At the same time, the flexible disk 13 has good elasticity. When transmitting power, it uses elastic deformation to absorb energy to achieve the effects of vibration reduction and shock prevention.

[0026] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A small-power power transmission elastic coupling device, characterized in that The elastic coupling device includes a transmission input shaft, a flexible disc assembly, a spacer, a transmission housing, a power unit housing, and a power output disc; wherein, The transmission input shaft is installed in the transmission housing. The transmission input shaft is supported and its relative position is maintained by the transmission housing. The transmission housing is fixedly installed. When power is transmitted to the transmission input shaft, the transmission input shaft rotates and transmits torque and rotational speed; The power output disc is installed in the power unit housing. The power output disc is supported and its relative position is maintained by the power unit housing. The power of the power unit is output through the power output disc in the form of torque and rotational speed; The transmission housing is connected to the power unit housing by bolts and spring washers; Multiple flexible disc assemblies are arranged in parallel. An annular spacer is installed between the flexible disc assembly closest to the power output disc and the power output disc; The outer ring parts of each flexible disc assembly and the spacer are installed on the output end face of the power output disc by bolts and spring washers; The inner ring parts of each flexible disc assembly are installed on the end face of the transmission input shaft by bolts and spring washers; The flexible disc assembly includes a flexible disc, an inner ring pressing plate, and an outer ring pressing plate; wherein, a plurality of wing-shaped grooves are evenly arranged along the circumferential direction of the flexible disc; The inner ring pressing plate is fixed to the inner ring on one side of the flexible disc, and the outer ring pressing plate is fixed to the outer ring on the other side of the flexible disc; The bottom end of the wing-shaped groove is designed with a fillet with a radius of R20mm; The inner ring pressing plate is welded to the inner ring on one side of the flexible disc, and the outer ring pressing plate is welded to the outer ring on the other side of the flexible disc.

2. The elastic coupling device according to claim 1, characterized in that, The flexible disc, the inner ring pressing plate, and the outer ring pressing plate are all made of 65Mn steel with a heat treatment hardness of HRC43 - 48.

3. The elastic coupling device according to claim 2, characterized in that, The flexible disc, the inner ring pressing plate, and the outer ring pressing plate have a thickness of 1.2mm.

4. The elastic coupling device according to claim 1, characterized in that, There are three flexible disc assemblies in total.

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