Grease separation lubricated wheel reducer

Abstract

The invention provides a wheel-side reducer adopting grease separating lubrication. Leakage of a gear lubricant can be reduced, and the service life of bearings can be prolonged. The wheel-side reducer comprises a planetary part, a hub and a power input part. The input part comprises an input gear shaft and a shaft head, and the planetary part comprises a plurality of planetary gears which are engaged with the input gear shaft; the planetary gear shaft is sleeved with the multiple planetary gears in a corresponding mode, and the multiple planetary gears share the same gear ring which is fixedly arranged on a gear ring support; the gear ring support is connected with the shaft head, and the planetary gears, the planetary gear shaft and the gear ring are all arranged in a wheel-side shell; the hub and the wheel-side shell are detachably connected into a whole, and the hub is supported on the shaft head and the gear ring support through the inner bearing and the outer bearing; a first oil seal is arranged between the hub and the gear ring support, and a second oil seal is arranged between the hub and the shaft head through a oil seal seat; and the inner bearing and the outer bearing are arranged in a spaced mode, and a communicating channel is arranged between the inner bearing and the outer bearing.

Description

technical field [0001] The invention relates to a wheel-side reducer, in particular to a wheel-side reducer for grease separation and lubrication, and belongs to the technical field of vehicle reducers. Background technique [0002] The wheel reducer was invented by American scientists in the 1950s. After continuous improvement, it is now widely used as a wheel reducer for mining dump truck drive axles. It is also used in some electric vehicles, which are directly driven by motors. At present, most wheel reducers in the field of vehicle engineering use planetary gear trains to transmit power to form planetary gear wheel reducers. [0003] The planetary gear wheel reducer has the advantages of compact structure, large transmission ratio, and strong bearing capacity. There are also some disadvantages. The heat is generated during the meshing process of the internal gear of the wheel reducer. The wheel reducer is installed in the rim of the wheel, which makes its heat dissipat...

AI Technical Summary

Problems solved by technology

There are also some disadvantages. The heat is generated during the meshing process of the internal gear of the wheel reducer. The wheel reducer is installed in the rim of the wheel, which makes its heat dissipation performance poor. During the braking process of the vehicle, the heat is transferred to the wheel reducer, which makes the temperature of the wheel reducer high

High temperature is easy to reduce the viscosity of the lubricating oil in the gear of the wheel reducer, and the oil seal is easy to age, resulting in the leakage of lubricating oil

[0004] Iron filings are likely to be generated during the meshing process of the internal gears of the wheel-side reducer, and enter the bearing together with the lubricating oil, causing wear to the rolling elements and raceways in the bearing, resulting in vibration and noise, and reducing the operating accuracy of the bearing

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