Improved structure planetary gear

A technology for planetary gears and improved structures, applied in the direction of gear lubrication/cooling, belts/chains/gears, elements with teeth, etc., can solve the problem of shortening the service life of planetary gears and planetary shafts, reducing the working stability of differentials, Does not conform to the development trend and other issues, to achieve the effect of improving work stability, reasonable design, simple installation and disassembly

Inactive Publication Date: 2013-09-11
孙维
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two schemes have improved the working stability of the differential to a certain extent, but the planetary gears of these two schemes have at least the following disadvantages: poor self-lubricating effect, virtually shortening the service life of the planetary gears and planetary shafts, In addition, it virtually reduces the working stability of the differential, which does not conform to the current development trend of social technology

Method used

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  • Improved structure planetary gear
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Embodiment 1

[0017] Such as figure 1 As shown, the planetary gear of this improved structure includes a body 1 with several teeth 11, chamfered surfaces are provided at both ends of each tooth 11, and a central hole 12 is provided at the axial center of the body 1. The optimization scheme, here The teeth 11 are helical teeth. On the body 1, there is an annular shoulder a located at one end of the central hole 12. In the central hole 12, there is a powder metallurgy bushing 2 with one end against the annular shoulder a. , an oil storage structure is provided on the powder metallurgy bushing 2 . Obviously, the design of this embodiment is more reasonable, the installation and disassembly are relatively simple, and it has the function of oil storage, good self-lubricating effect, improves the working stability of the differential, and conforms to the current trend of social and technological development.

[0018] Specifically, the oil storage structure of this embodiment includes a spiral oi...

Embodiment 2

[0020] Such as figure 2 As shown, the structure and principle of this embodiment are basically the same as those of Embodiment 1, except that the oil storage structure includes a number of small oil storage holes 22 arranged on the inner wall of the powder metallurgy bushing 2; the diameter of the small oil storage holes 22 is is 2mm.

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Abstract

The invention belongs to the technical field of differential mechanism accessories and particularly relates to an improved structure planetary gear. The technical problems that in the prior art, design is not reasonable, and service life is short are solved. The improved structure planetary gear comprises a body with a plurality of teeth, and a central hole is formed in the axial center of the body. The improved structure planetary gear is characterized in that the teeth are oblique teeth, an annular protruding shoulder which is placed on a hole opening at one end of the central hole is arranged on the body, a powder metallurgy lining is arranged in the central hole, one end of the powder metallurgy lining abuts against the annular protruding shoulder, and an oil storage structure is arranged on the powder metallurgy lining. Compared with the prior art, the improved structure planetary gear has the advantages that design is reasonable, assembling and disassembling are easy, an oil-storing effect is achieved, a self-lubrication effect is good, working stability of a differential mechanism is improved, and the improved structure planetary gear accords with the trend of technology development of current society.

Description

technical field [0001] The invention belongs to the technical field of differential gear accessories, in particular to a planetary gear with an improved structure. Background technique [0002] The power of the car engine is transmitted to the drive axle through the clutch, transmission, drive shaft, and then distributed to the left and right axle drive wheels. In this power transmission path, the drive axle is the last assembly, and its main components are reducer and differential. The automotive differential is the main part of the drive axle. Its function is to allow the two half shafts to rotate at different speeds while transmitting power to the two half shafts, so that the wheels on both sides can run at unequal distances in the form of pure rolling as much as possible, and reduce the friction between the tires and the ground. In order to ensure the working stability of the differential, people have carried out long-term exploration and proposed various solutions. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17F16H57/04
Inventor 孙维
Owner 孙维
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