Split planet carrier assembly facilitating positioning of planet wheel shaft

A technology for planetary gear shafts and planetary carriers, which is applied to transmission parts, gear lubrication/cooling, belts/chains/gears, etc. It can solve problems such as low strength, difficult disassembly, and inconvenience, and achieve simple and reliable connection methods Tall, compact effect

Active Publication Date: 2020-01-17
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

The most widely used positioning methods for planetary gear shafts include set screw fixing and end face punching. The set screw fixing needs to be manually aligned with the axis of the screw hole during assembly, which is very inconvenient and difficult to disassemble, and its strength is not high. Set screws are easily cut off under severe working conditions
The end face pu

Method used

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  • Split planet carrier assembly facilitating positioning of planet wheel shaft
  • Split planet carrier assembly facilitating positioning of planet wheel shaft
  • Split planet carrier assembly facilitating positioning of planet wheel shaft

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Embodiment Construction

[0029] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] In order to solve the problems of the prior art, the present invention provides a split planetary carrier assembly that facilitates the positioning of the planetary gear shaft, such as Figure 1-Figure 3 As shown, the split planet carrier assembly includes: main planet carrier 1, auxiliary planet carrier 7, planet wheel shaft 8 and positioning steel ball 2;

[0031] The auxiliary planet carrier 7 is provided with a lubricating oil passage A, and the planetary wheel shaft 8 is provided with an oil inlet passage B, and the positions of the lubricating oil passage A and the oil inlet passage B are set to maintain alignment; and, the planetary The wheel shaft 8 is also provided with an oil throwing oil passage C, an...

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Abstract

The invention belongs to the technical field of mechanical transmission, and particularly relates to a split planet carrier assembly facilitating positioning of a planet wheel shaft. The assembly comprises a main planet carrier, an auxiliary planet carrier, a planet wheel, the planet wheel shaft, a needle bearing, a bearing spacer ring, an anti-wear pad and positioning steel balls. In order to ensure that an oil passage hole on the planet wheel shaft is aligned with an oil passage hole on the auxiliary planet carrier so that lubricating oil can smoothly enter an inner hole of the planet wheelshaft and provide lubrication for the needle bearing of the planet wheel, it must be ensured that the planet wheel shaft does not rotate circumferentially or move axially in the working process. According to the split planet carrier assembly facilitating positioning of the planet wheel shaft, the steel ball positioning type is adopted, the steel balls are arranged in the planet wheel shaft and themain planet carrier, and are matched with a cylindrical groove on the planet wheel shaft and a semi-cylindrical groove on the main planet carrier respectively, so that the planet wheel shaft can be positioned, the structure is simple and compact, the assembly and the repeated disassembly are easy, and the steel ball positioning type has higher reliability compared with the modes of fixing screw positioning, end face mortise punching and the like.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and in particular relates to a split-type planet carrier assembly which facilitates the positioning of the planet wheel shaft. Background technique [0002] Planetary transmission is widely used in mechanical transmission systems due to its compact structure, wide transmission ratio range, stable force transmission, and low noise. Due to the high rotational speed of the planetary wheel, the heat generated by the planetary wheel bearing is relatively large during operation. In order to ensure that the planetary wheel bearing is sufficiently lubricated, the planetary wheel bearing is generally forced to be lubricated in the form of an oil channel on the planet carrier and the planetary wheel shaft. In order to align the oil passage of the planet wheel shaft with the oil passage of the planet carrier, so that the lubricating oil can pass through the oil passage of the planet wheel sh...

Claims

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Application Information

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IPC IPC(8): F16H57/08F16H57/04F16H57/021
CPCF16H57/021F16H57/043F16H57/0479F16H57/0482F16H57/082F16H2057/085
Inventor 张静邢庆坤唐沛周如意李新毅田真李晋张鹤尹华兵贾爽
Owner CHINA NORTH VEHICLE RES INST
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