Brush-type sealing structure suitable for gearbox

Abstract

The invention discloses a brush-type sealing structure suitable for a gearbox. The brush-type sealing structure comprises a bearing liner bushing, a static ring, a transmission shaft, a movable ring and a bearing; the bearing is connected to the outer circumference of the transmission shaft in a sleeving mode and located in the bearing liner bushing, and an oil slinging groove is formed in the movable ring; a first sealing cavity and a second sealing cavity are formed in a whole constituted by the static ring and the bearing liner bushing; an oil spraying pipeline allowing oil to enter the first sealing cavity, a first oil return channel allowing the oil to flow back from the first sealing cavity into the gearbox, and a second oil return channel allowing the oil to flow back from the second sealing cavity into the gearbox are formed in the whole constituted by the static ring and the bearing liner bushing; the second sealing cavity is internally provided with a radial brush-type sealing piece for improving the eddy current dissipation capability and decreasing the circumferential rotating speed of a fluid so as to ensure smooth oil return; and an axial brush-type sealing piece forincreasing on-way resistance so as to block oil liquid from leaking out is further arranged between the static ring and the movable ring. According to the brush-type sealing structure suitable for thegearbox, the oil sealing capacity of the gearbox can be effectively improved.

Description

technical field [0001] The invention relates to a brush type sealing structure, in particular to a brush type sealing structure suitable for a gear box. Background technique [0002] Lubricating oil leakage is a common problem in the gearbox industry. Lubricating oil leakage will cause waste and pollute the environment. Leakage failure is also one of the main reasons for the unplanned shutdown of gearbox equipment. Therefore, improving the sealing performance of gearboxes is an important direction for gearbox product optimization. [0003] The sealing structure of the traditional gearbox is relatively simple, and the lubricating oil is easy to leak. Contents of the invention [0004] In order to solve the deficiencies of the prior art, the present invention provides a brush seal structure suitable for gear boxes that can effectively improve the oil sealing capacity of the gear box. [0005] In order to achieve the above object, the present invention adopts the following ...

AI Technical Summary

Problems solved by technology

Lubricating oil leakage will cause waste and pollute the environment. Leakage failure is also one of the main reasons for the unplanned shutdown of gearbox equipment. Therefore, improving the sealing performance of gearboxes is an important direction for gearbox product optimization.

[0003] The sealing structure of the traditional gearbox is relatively simple, and the lubricating oil is easy to leak

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