Planet gear bearing forced lubricating device

Abstract

The invention discloses a planet gear bearing forced lubricating device for a wind power generation gearbox. The planet gear bearing forced lubricating device comprises a box body, a planet carrier, a planet gear, a bearing and a planet pin; the planet carrier is rotationally supported on the box body; the planet pin is arranged on the planet carrier; the planet gear is rotationally supported on the planet carrier by the bearing; the inner lateral surface of the planet carrier, which is opposite to the inner lateral surface of the box body, is provided with a ring-shaped convex retainer; a centrifugal oil collection cavity is formed between the inner lateral surface of the planet carrier and the inner wall of the ring-shaped convex retainer; the box body is provided with an oil injection duct and a spray nozzle is arranged on the box body; the oil injection duct is communicated with the spray nozzle; an outlet of the spray nozzle is toward the centrifugal oil collection cavity on the planet carrier; the planet pin is provided with an oil passage; an inlet of the oil passage is communicated with the centrifugal oil collection cavity; and an outlet of the oil passage is communicated to the position of the bearing positioned outside the planet pin. The planet gear bearing forced lubricating device has reasonable structure and is convenient to process and manufacture; and the oil supply can be regulated according to the working conditions.

Description

technical field [0001] The invention relates to a gear box, in particular to a planetary gear transmission structure of a wind power generation gear box. Background technique [0002] The operating conditions of the wind power gearbox are complex, the transmission torque is large, and the gears in the gearbox have high requirements for lubrication. A reasonable lubrication method can improve the mechanical efficiency of the transmission system and significantly increase the service life of each gear. Existing wind power generation gearboxes generally adopt forced lubrication, and carry out pressure oil supply and lubrication to the running planetary carrier bearings and the planetary bearings in the planetary carrier through oil pipes fixed on the box body. Since the oil passages are distributed in the stationary box and the rotating planetary carrier, it is generally necessary to process the oil passages on the planetary carrier with a complex structure, which is difficult...

AI Technical Summary

Problems solved by technology

Since the oil passages are distributed in the stationary box and the rotating planetary carrier, it is generally necessary to process the oil passages on the planetary carrier with a complex structure, which is difficult to process, and the existing forced lubrication device for planetary wheel bearings still has oil supply capacity. Difficult to adjust, need sealing link, inconvenient assembly, etc.

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