Slewing bearing with oil drainage holes

Abstract

The invention discloses a slewing bearing with oil drainage holes. The slewing bearing comprises an outer ring, an inner tooth ring and a sealing tape, wherein a roller path is formed between the outer ring and the inner tooth ring; a plurality of roller path steel balls for separating the outer ring from the inner tooth ring are arranged in the roller path; the sealing tape is also arranged on the slewing bearing, a plurality of oil drainage holes are uniformly formed in the inner tooth ring; an outlet of each oil drainage hole is formed in the middle of a tooth groove of each two adjacent teeth on the inner tooth ring. A certain number of oil drainage holes are additionally formed in the inner tooth ring and are uniformly distributed in the gear circumference of the inner tooth ring, redundant grease gathered in the roller path can be smoothly drained, and the drained grease enters the inner tooth ring, so that the problem of grease gathering is solved, a running gear can be additionally lubricated, and the problem that the gear cannot be lubricated in a late stage is solved. The grease is reasonably utilized, the lubrication of the gear is improved, the probability of manual handling of the lubrication problem is reduced, and the problem that the gear cannot be added with oil and fat for lubrication in the late stage is solved.

Description

technical field [0001] The invention relates to a slewing bearing, in particular to a slewing bearing with an oil discharge hole. Background technique [0002] The slewing bearing is a large bearing capable of bearing comprehensive loads. It can bear large axial and radial loads and overturning moments at the same time. It is widely used in the actual industry. The slewing bearing needs lubrication during use. The previous slewing The support is to inject grease regularly through the oil injection hole of the outer ring to achieve the purpose of lubricating the raceway, but the grease accumulated in the raceway is still in the raceway, there is no stable discharge channel, and a small amount can be squeezed out through the rubber seal, but it is easy to appear. For the problem of grease pollution, the grease discharge is also very inefficient, and the lubricating oil cannot be added in the later stage of the gear, which adds a certain degree of difficulty and danger to m...

AI Technical Summary

Problems solved by technology

[0002] The slewing bearing is a large bearing capable of bearing comprehensive loads. It can bear large axial and radial loads and overturning moments at the same time. It is widely used in the actual industry. The slewing bearing needs lubrication during use. The previous slewing The support is to inject grease regularly through the oil injection hole of the outer ring to achieve the purpose of lubricating the raceway, but the grease accumulated in the raceway is still in the raceway, there is no stable discharge channel, and a small amount can be squeezed out through the rubber seal, but it is easy to appear. The problem of grease pollution, grease removal is also very inefficient, and the lubricating oil cannot be added in the later stage of the gear, which adds a certain degree of difficulty and danger to maintenance

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