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Planetary gear transmission system with high-damping high-flexibility bearing embedded structure

A planetary gear transmission, nested structure technology, applied in the direction of gear transmission, gear vibration/noise attenuation, transmission, etc., can solve the problem of reducing the load sharing performance of the system, and achieve the effect of improving load sharing and dynamic performance.

Active Publication Date: 2020-06-16
CHANGZHOU INST OF TECH
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  • Abstract
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Problems solved by technology

figure 2 The abscissa in the middle represents the stiffness, and the ordinate represents the load sharing coefficient. When the stiffness increases to a certain area, the load sharing coefficient increases greatly, thereby significantly reducing the load sharing performance of the system

Method used

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  • Planetary gear transmission system with high-damping high-flexibility bearing embedded structure
  • Planetary gear transmission system with high-damping high-flexibility bearing embedded structure
  • Planetary gear transmission system with high-damping high-flexibility bearing embedded structure

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] image 3 It is an assembly diagram of a planetary gear transmission system without flexible nesting, which is mainly composed of an inner ring gear, a sun gear, a planetary gear, a planetary gear shaft, a planet carrier, a bearing and an output shaft. Wherein, the ring gear and the shaft are fixedly installed on the gear box body.

[0033] Figure 4 is an exploded view of a planetary gear system without flexible nesting. The output shaft bearing 1 is installed on the output shaft 3, the output shaft 3 is installed in the threaded hole on the upper cover plate 4 of the planet carrier through the bolt 2, and the upper bearing 6 and the lower bearing 9 of a planetary wheel are combined and installed in the inner hole of the planetary wheel 12 Among them, two bearings are installed inside a planetary wheel 12, and the planetary wheel 12 is installed tog...

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Abstract

The invention discloses a planetary gear transmission system with a high-damping high-flexibility bearing embedded structure. The system comprises an inner gear ring, wherein a sun gear is arranged inthe inner gear ring, a plurality of planet gears are meshed between the sun gear and the inner gear ring, the sun gear is arranged on an input shaft through input shaft bearings, the planet gears arearranged on planet pin shafts through planet gear bearings, flexible damping rings are further arranged between the planet gears and the planet gear bearings, and / or flexible damping rings are further arranged between the sun gear and the input shaft bearings, and the flexible damping rings are nested between inner rings of the sun gear and the planet gears and outer rings of the bearings, and are of a high-damping high-flexibility bearing embedded structure with arc-shaped and waist-shaped holes in a stacked and staggered layout. The problems of uniform load and dynamics in the planetary gear transmission system or an epicyclic gear train are solved by designing the high-damping high-flexibility bearing embedded structure with the arc-shaped and waist-shaped holes in a stacked and staggered layout, the vibration and noise of the system are obviously reduced, and the stability and the reliability of equipment are improved.

Description

technical field [0001] The invention relates to a planetary gear transmission system, in particular to a planetary gear transmission system with high damping and high flexibility. Background technique [0002] In the planetary gear transmission system or epicyclic gear train, due to the existence of machining errors, as well as the rigid assembly relationship between the planetary gear and the planet carrier, between the sun gear and the input shaft, the cooperation between the gears is not flexible, thus This makes the system have more obvious problems of uneven dynamics and load distribution, which also brings strong vibration and noise problems. For this kind of vibration and noise, whether it is in the stability and reliability of civilian or military products, it is a relatively serious problem. [0003] At present, methods to improve the assembly flexibility of planetary or sun gears mainly focus on digging holes for their assembly pins, which can reduce their support...

Claims

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Application Information

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IPC IPC(8): F16H1/32F16H57/00F16H57/08F16F15/121G06F30/17G06F30/23G06F119/14
CPCF16F15/1208F16F15/121F16F2224/0208F16H1/32F16H57/0006F16H57/08F16H2057/085
Inventor 盛冬平李晓贞徐红丽门艳钟何亚峰
Owner CHANGZHOU INST OF TECH
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