Main bearing of high-load precise planetary cycloid speed reducer

Abstract

The utility model relates to the technical field of main bearings of planet cycloid speed reducers, in particular to a high-load precise main bearing of a planet cycloid speed reducer. According to the technical scheme, the main bearing of the high-load precise planetary cycloid speed reducer comprises a main shaft assembly, a shell and a planetary speed reduction assembly, a planetary speed reduction assembly is arranged outside the main shaft assembly; a shell is arranged in front of the planetary speed reduction assembly. The input shaft is in bearing connection with the inner hole of the connecting disc through the shaft end ball bearing, the stability of the output shaft and the two ends of the input shaft is enhanced through the cooperation of the output shaft ball bearing and the input shaft ball bearing, and then the problem of shaking and vibration of the input shaft in the transmission process is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of main bearings of planetary cycloid reducers, and in particular relates to a main bearing of a high-load precision planetary cycloid reducer. Background Art

[0002] The planetary cycloid reducer adopts a cycloid pin-tooth meshing reduction mechanism, which has the characteristics of large reduction ratio, high transmission efficiency, small size, light weight, few failures, long life, stable and reliable operation, low noise, easy disassembly and assembly, easy maintenance, simple structure, strong overload capacity, impact resistance, and small inertia moment.

[0003] When the main bearing of the existing planetary cycloid reducer is in use, due to the change in the inclination angle of the device in space, a slight offset is likely to occur between the power input shaft and the output shaft. This offset will cause vibration during the shaft transmission process, causing the transmission shaft axis to shift, affecting the stability and performance of the reducer.

[0004] Therefore, for the above-mentioned existing planetary cycloid reducer main bearing, since the shaft transmission between its power input shaft and output shaft is prone to slight deviation with the inclination angle of the device in space, causing vibration during the shaft transmission process, a high-load precision planetary cycloid reducer main bearing can be designed. Utility Model Content

[0005] In order to overcome the problem that the main bearing of the existing planetary cycloid reducer vibrates during the shaft transmission process because the shaft transmission between the power input shaft and the output shaft is easily slightly offset as the device inclination in space.

[0006] The technical solution of the utility model is as follows: a high-load precision planetary cycloid reducer main bearing includes a main shaft assembly, a housing, and a planetary reduction assembly; a planetary reduction assembly is arranged on the outside of the main shaft assembly; a housing is arranged in front of the planetary reduction assembly; the main shaft assembly includes an input shaft, an input gear shaft, an input shaft ball bearing, an output shaft, a connecting plate, an output shaft ball bearing, and a shaft end ball bearing; the planetary reduction assembly includes a reduction housing, a planetary gear transmission plate, and a planetary gear.

[0007] Preferably, the input shaft is connected to the internal hole bearing of the connecting plate through the shaft end ball bearing, and the output shaft ball bearing and the input shaft ball bearing are used to enhance the stability of both ends of the output shaft and the input shaft, thereby effectively preventing the problem of shaking and vibration during the transmission of the input shaft, and solving the problem of vibration in the main bearing of the existing planetary cycloid reducer, because the shaft transmission between the power input shaft and the output shaft is prone to slight deviation with the inclination angle of the device in space, causing vibration during the shaft transmission.

[0008] Preferably, a planetary gear transmission plate is provided inside the reduction housing; each triangle of the planetary gear transmission plate is provided with planetary gears, three groups of planetary gears are provided, and the planetary gears are rotationally connected to the planetary gear transmission plate, and the planetary gears are connected to the gear transmission on the inside of the reduction housing.

[0009] Preferably, an input gear shaft is arranged between the three planetary gears, and the input gear shaft drives the planetary gears on its outer side to rotate and connect; an input shaft is fixedly arranged inside the input gear shaft, and the input shaft passes through the center hole of the reduction housing; an input shaft ball bearing is arranged between the center hole of the reduction housing and the input shaft.

[0010] Preferably, a connecting plate is provided in front of the input gear shaft, and the connecting plate is fixedly connected to the planetary gear transmission plate by bolts; a shaft end ball bearing is provided inside the connecting plate, and the shaft end ball bearing is connected to one end bearing of the input shaft.

[0011] Preferably, an output shaft is provided at the front end of the connecting disk, and the output shaft and the connecting disk are integrally formed, and the output shaft passes through the center hole of the shell.

[0012] Preferably, an output shaft ball bearing is provided between the outer side of the connecting disk and the center hole of the outer shell, and the output shaft ball bearing is rotatably connected to the connecting disk and the outer shell bearing.

[0013] Beneficial effects of the utility model:

[0014] 1. The existing main bearings of planetary cycloid reducers have a problem of vibration during the shaft transmission process because the shaft transmission between the power input shaft and the output shaft is easily slightly offset due to the inclination angle of the device in space. The input shaft is connected to the internal hole bearing of the connecting plate through the shaft end ball bearing. The output shaft ball bearing and the input shaft ball bearing are matched to strengthen the stability of both ends of the output shaft and the input shaft, thereby effectively preventing the shaking and vibration of the input shaft during the transmission process. This solves the problem of vibration during the shaft transmission process caused by the shaft transmission between the power input shaft and the output shaft being easily slightly offset due to the inclination angle of the device in space.

[0015] 2. Through the setting of the connecting plate, the connecting plate keeps the rotating axis of the output shaft consistent with the input shaft, and uses the shaft end ball bearing to improve the connection stability between the input shaft and the connecting plate, further improving the axis stability when the output shaft and the input shaft rotate together. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the overall three-dimensional structure of the main bearing of the high-load precision planetary cycloid reducer of the utility model;

[0017] Figure 2 Shown is a schematic diagram of the overall exploded three-dimensional structure of the main bearing of the high-load precision planetary cycloid reducer of the utility model;

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the main shaft assembly of the high-load precision planetary cycloid reducer main bearing of the utility model;

[0019] Figure 4 Shown is a schematic diagram of the cross-sectional three-dimensional structure of the main shaft assembly of the high-load precision planetary cycloid reducer main bearing of the present invention.

[0020] The marks in the accompanying drawings are: 1. Main shaft assembly; 2. Housing; 3. Planetary reduction assembly; 101. Input shaft; 102. Input gear shaft; 103. Input shaft ball bearing; 104. Output shaft; 105. Connecting plate; 106. Output shaft ball bearing; 107. Shaft end ball bearing; 301. Reduction housing; 302. Planetary gear transmission plate; 303. Planetary gear. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1-4 The utility model provides an embodiment: a high-load precision planetary cycloid reducer main bearing includes a main shaft assembly 1, a housing 2, and a planetary reduction assembly 3; the planetary reduction assembly 3 is arranged on the outside of the main shaft assembly 1; the housing 2 is arranged in front of the planetary reduction assembly 3; the main shaft assembly 1 includes an input shaft 101, an input gear shaft 102, an input shaft ball bearing 103, an output shaft 104, a connecting plate 105, an output shaft ball bearing 106, and a shaft end ball bearing 107; the planetary reduction assembly 3 includes a reduction housing 301, a planetary gear transmission plate 302, and a planetary gear 303.

[0023] See also Figure 1-4In this embodiment, a planetary gear transmission disc 302 is provided inside the reduction housing 301; planetary gears 303 are provided on each triangle of the planetary gear transmission disc 302, and three sets of planetary gears 303 are provided, and the planetary gears 303 are rotatably connected to the planetary gear transmission disc 302, and the planetary gears 303 are connected to the teeth on the inner side of the reduction housing 301; an input gear shaft 102 is provided between the three planetary gears 303, and the input gear shaft 102 drives the planetary gears 303 on the outer side thereof to be rotatably connected; an input shaft 101 is fixedly provided inside the input gear shaft 102, and the input shaft 101 passes through the center hole of the reduction housing 301; the center hole of the reduction housing 301 is connected to the input shaft 102. 01; a connecting disk 105 is provided in front of the input gear shaft 102, and the connecting disk 105 and the planetary gear transmission disk 302 are fixedly connected by bolts; a shaft end ball bearing 107 is provided inside the connecting disk 105, and the shaft end ball bearing 107 is connected to one end bearing of the input shaft 101; an output shaft 104 is provided at the front end of the connecting disk 105, and the output shaft 104 and the connecting disk 105 are integrally formed, and the output shaft 104 is provided through the center hole of the outer shell 2; an output shaft ball bearing 106 is provided between the outer side of the connecting disk 105 and the center hole of the outer shell 2, and the output shaft ball bearing 106 is rotatably connected to the connecting disk 105 and the bearing of the outer shell 2.

[0024] During operation, the input shaft 101 is connected to the internal hole bearing of the connecting plate 105 through the shaft end ball bearing 107, and the output shaft ball bearing 106 and the input shaft ball bearing 103 are used to strengthen the stability of both ends of the output shaft 104 and the input shaft 101, thereby effectively preventing the input shaft 101 from shaking and vibrating during the transmission process. This solves the problem of the main bearing of the existing planetary cycloid reducer, because the shaft transmission between the power input shaft and the output shaft is easily slightly offset due to the inclination angle of the device in space, causing vibration during the shaft transmission process;

[0025] Next, the connecting plate 105 keeps the rotating axis of the output shaft 104 consistent with the input shaft 101, and uses the shaft end ball bearing 107 to improve the connection stability between the input shaft 101 and the connecting plate 105, further improving the axis stability when the output shaft 104 and the input shaft 101 rotate together.

[0026] Through the above steps, the input shaft 101 is connected to the internal hole bearing of the connecting plate 105 through the shaft end ball bearing 107, and the output shaft ball bearing 106 and the input shaft ball bearing 103 are used to strengthen the stability of both ends of the output shaft 104 and the input shaft 101, thereby effectively preventing the input shaft 101 from shaking and vibrating during the transmission process, avoiding the problem of vibration in the main bearing of the existing planetary cycloid reducer, because the shaft transmission between its power input shaft and output shaft is prone to slight deviation with the inclination angle of the device in space, causing the shaft transmission process to vibrate.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A high-load precision planetary cycloid reducer main bearing, comprising a main shaft assembly (1), characterized in that: The invention also includes a housing (2) and a planetary reduction assembly (3); the planetary reduction assembly (3) is arranged outside the main shaft assembly (1); the housing (2) is arranged in front of the planetary reduction assembly (3); the main shaft assembly (1) includes an input shaft (101), an input gear shaft (102), an input shaft ball bearing (103), an output shaft (104), a connecting plate (105), an output shaft ball bearing (106), and a shaft end ball bearing (107); the planetary reduction assembly (3) includes a reduction housing (301), a planetary gear transmission plate (302), and a planetary gear (303).

2. The high-load precision planetary cycloid reducer main bearing according to claim 1, characterized in that: A planetary gear transmission disc (302) is provided inside the reduction housing (301); each triangle of the planetary gear transmission disc (302) is provided with a planetary gear (303), three sets of planetary gears (303) are provided, and the planetary gears (303) are rotationally connected to the planetary gear transmission disc (302), and the planetary gears (303) are connected to the teeth on the inner side of the reduction housing (301) in a transmission manner.

3. The high-load precision planetary cycloid reducer main bearing according to claim 2, characterized in that: An input gear shaft (102) is provided between the three planetary gears (303), and the input gear shaft (102) drives the planetary gears (303) on the outside thereof to rotate and connect; an input shaft (101) is fixedly provided inside the input gear shaft (102), and the input shaft (101) passes through the center hole of the reduction housing (301); an input shaft ball bearing (103) is provided between the center hole of the reduction housing (301) and the input shaft (101).

4. The high-load precision planetary cycloid reducer main bearing according to claim 3, characterized in that: A connecting disk (105) is provided in front of the input gear shaft (102), and the connecting disk (105) is fixedly connected to the planetary gear transmission disk (302) by bolts; a shaft end ball bearing (107) is provided inside the connecting disk (105), and the shaft end ball bearing (107) is connected to one end bearing of the input shaft (101).

5. The high-load precision planetary cycloid reducer main bearing according to claim 4, characterized in that: An output shaft (104) is provided at the front end of the connecting disk (105), and the output shaft (104) and the connecting disk (105) are integrally formed, and the output shaft (104) passes through the center hole of the housing (2).

6. The high-load precision planetary cycloid reducer main bearing according to claim 4, characterized in that: An output shaft ball bearing (106) is provided between the outer side of the connecting disk (105) and the central hole of the housing (2), and the output shaft ball bearing (106) is rotatably connected to the connecting disk (105) and the housing (2).

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