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A planet carrier structure with flexible floating and load sharing

A planet carrier, flexible technology, applied in transmission parts, belts/chains/gears, mechanical equipment, etc., can solve the problems of not ensuring smooth operation, mitigating vibration, lack of flexibility, etc. Vibration and shock reduction effect

Active Publication Date: 2020-12-01
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, the planet carrier of the planetary gear system is mostly made as a whole, with high rigidity, too small material damping, poor load equalization effect, poor vibration mitigation, and stable operation.
Most of the connections of the existing planetary frames are rigid connections, and the overall rigidity is relatively high, resulting in poor overall load balancing effect of the planetary frame, the overall lack of flexibility, and very limited load balancing effect. Both will aggravate the fatigue of the planetary gear system and greatly shorten the life of the planetary gear system

Method used

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  • A planet carrier structure with flexible floating and load sharing
  • A planet carrier structure with flexible floating and load sharing
  • A planet carrier structure with flexible floating and load sharing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment discloses a planetary carrier structure with flexible floating and load balancing functions, including a flexible support 4 , connecting bolts 3 , a planetary carrier 5 , an inner ring gear 2 , a sun gear 6 and a planetary gear 7 .

[0028] The planet carrier 5 is a hollow cylindrical structure, and the inner ring gear 2 is sheathed on the outer surface of the planet carrier 5 . see Figure 4 , the inner ring gear 2 is cut along its cross section to form two parts, and when installed, the two parts are spliced ​​by several bolts 201 to form the inner ring gear 2 .

[0029] see figure 1 Or 2, the inside of the planet carrier 5 is provided with a sun gear 6 and five evenly distributed planetary gears 7, and each planetary gear 7 meshes with the ring gear 2 and the sun gear 6 respectively. In this embodiment, the sun gear 6 is a herringbone gear. In practical applications, other types of gears are also suitable for the device of the present invention.

...

Embodiment 2

[0042] This embodiment discloses a planetary carrier structure with flexible floating and load balancing functions, including a flexible support 4 , connecting bolts 3 , a planetary carrier 5 , an inner ring gear 2 , a sun gear 6 and a planetary gear 7 .

[0043] The planet carrier 5 is a hollow cylindrical structure, and the inner ring gear 2 is sheathed on the outer surface of the planet carrier 5 .

[0044] see figure 1 Or 2, the inside of the planet carrier 5 is provided with a sun gear 6 and five evenly distributed planetary gears 7, and each planetary gear 7 meshes with the ring gear 2 and the sun gear 6 respectively. In this embodiment, the sun gear 6 is a spur gear. In practical applications, other types of gears are also suitable for the device of the present invention.

[0045] see Figure 4 Each of the planet wheels 7 is assembled on the planet carrier by a planet wheel shaft 9 and a sliding bearing 11, the sliding bearing 11 is sleeved on the planet wheel shaft 9...

Embodiment 3

[0056] The main structure of this embodiment is the same as that of Embodiment 2, further, refer to Figure 4 , the flexible bracket 4 includes a bracket bottom plate 402 and an annular thin wall 403, the bracket bottom plate 402 is provided with an annular thin wall 403 on the surface facing the planet carrier 5, and the ring edge of the annular thin wall 403 away from the bracket bottom plate 402 is connected with five Strut 401 . The support bottom plate 402 is fixed on the box body on the plate surface facing away from the planetary carrier 5 .

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Abstract

The invention discloses a planet carrier structure with flexible floating and uniform loading effects. The planet carrier structure comprises a flexible support, connecting bolts, a planet carrier, aninner ring gear, a sun gear and planet gears. The sun gear and the five planet gears are arranged in the planet carrier, the inner gear ring sleeves the planet carrier, and the planet gears are meshed with the inner gear ring and the sun gear respectively. An annular thin plate is arranged on the flexible support, the flexible support is connected with the planet carrier through the connecting bolt, the connecting position is located in a center position of a thickness direction of the planet carrier, and ring plates, elastic washers, inner bushings, intermediate bushings, outer bushings andanti-extrusion rings are arranged at the connecting position, so that the flexible connection is realized. In the meshing process of the planet gears, slight floating can be made in an axial directionand a circumferential direction through the planet carrier, and the load on each planet gear can be balanced, so that the whole planet carrier has a good uniform loading effect. When vibration is generated on a top of an annular thin wall, an effect of relieving vibration and impact is achieved by elastic deformation of the annular thin wall.

Description

technical field [0001] The invention relates to the field of planetary gear transmission, in particular to a planet carrier structure with flexible floating and load balancing functions. Background technique [0002] The basic requirements of the gear transmission system are high load capacity, light weight, compact structure, high efficiency and stable operation. The planet carrier is an important structural part of the planetary gear transmission system. Due to the different meshing phases of different planetary gears with the sun gear and the inner ring gear at the same time, the loads on each planetary gear during the operation of the gearbox are different, and the planetary gear train gearbox is prone to failure of a single planetary gear and vibration shock In order to improve the load sharing problem of the planetary gear transmission system and reduce the vibration and impact of the system, a reasonable planet carrier structure is very important to improve the worki...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/08F16H57/023F16H57/028
CPCF16H57/023F16H57/028F16H57/082F16H2057/087
Inventor 魏静张佳雄王飞鸣张春鹏侯少帅吴紫恒
Owner CHONGQING UNIV
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