Sealing structure for wind power gear box planetary-stage lubrication

Abstract

The invention discloses a sealing structure for wind power gear box planetary-stage lubrication. The sealing structure comprises a lubricating plate (1), a box body bearing seat (2), a left bearing (3), a right bearing (4), a planet carrier outer shaft (5) and an adjusting cover (6), wherein the lubricating plate (1) is provided with an outer circle (1-1), a left inner ring end face (1-2), a right inner ring end face (1-4), a left outer ring end face (1-3) and a right outer ring end face (1-5), the box body bearing seat (2) is provided with an inner protruding ring (2-3) and an inner hole (2-1), the left bearing (3) is provided with an outer ring end face (3-1), and the right bearing (4) is provided with an outer ring end face (4-1). The sealing structure is characterized in that an annular clearance (A) is formed between the outer circle of the lubricating plate and the inner hole of the inner protruding ring of the box body bearing seat; a left end face clearance (B) is formed between the opposite arrangement positions of the left outer ring end face of the lubricating plate and the outer ring end face of the left bearing, and a right end face clearance (C) is formed between the opposite arrangement positions of the right outer ring end face and the outer ring end face of the right bearing; the clearances are mutually communicated, and therefore processing is easy, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to a wind power gearbox, in particular to a sealing structure for planetary grade lubrication of the wind power gearbox. Background technique [0002] The sealing of planetary grade lubrication in wind power gearboxes has always been a difficult problem in the industry. Commonly used are radial seal structure, packing seal structure and so on. Since the seal is in the harsh environment of high-temperature lubricating oil and high friction for a long time, it is easy to age and wear. The safety and reliability of the seal are not high, and it is difficult to meet the requirements of the long service life of the gearbox. [0003] see figure 1 A commonly used sealing structure for planetary grade lubrication of wind power gearboxes is shown. The structure includes a lubricating plate 1, a box bearing seat 2, a left bearing 3, a right bearing 4, a planet carrier 5 and an adjustment cover 6. A radial seal 7 is installed between the...

AI Technical Summary

Problems solved by technology

Due to the sealing structure of planetary grade lubrication of wind power gearbox, the radial seal 7 bears the relatively large friction force between the lubricating plate 1 and the box bearing seat 2 for a long time, and is soaked in high-temperature lubricating oil for a long time, so that the radial The seal 7 is easy to wear and age, and there are problems such as low safety, reliability and service life of the seal

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