Constant-distance sealing element of transmission case

Abstract

The invention discloses a transmission case constant-distance sealing piece which comprises an elastic gasket body, at least three positioning piece holes are formed in the gasket body, chamfers are arranged at the openings of the positioning piece holes, positioning pieces are embedded in the positioning piece holes, the positioning pieces are cylinders, rectangular strip-shaped bodies, kidney-shaped strip-shaped bodies or arc-shaped strip-shaped bodies, and the gasket body is provided with a sealing ring. The thickness of the positioning pieces is smaller than that of the gasket body and equal to that of the positioning pieces. By the adoption of the transmission case constant-distance sealing piece, the sealing effect can be guaranteed, and the connection size precision between two components of a transmission case body can be guaranteed.

Description

technical field [0001] The invention relates to a mechanical accessory, in particular to a sealing gasket used in mechanical equipment. Background technique [0002] In mechanical equipment, the transmission box is a commonly used mechanical transmission part. The mechanical transmission mechanism is supported in the transmission box body. The sealing device on the transmission box body ensures that the lubricating oil of the transmission mechanism in the box body is in a sealed state and cannot be leaked. The sealing gasket is One of the sealing devices on the transmission box, the commonly used sealing gasket is made of elastic material, relying on the connecting bolts between the two parts of the complete transmission box to make the sealing gasket elastically deformed, thereby eliminating the joint surface of the transmission box The processing defects and position deviations on the surface ensure that there will be no leakage between the joint surfaces of the two parts ...

AI Technical Summary

Problems solved by technology

However, since the sealing gasket is an elastic body, the connection size between the two parts of the transmission box becomes uncertain when they are combined into one body. The size depends on the degree of tightening of the connecting bolts. , the elastic deformation of the sealing gasket is large, and the connection size between the two parts of the transmission box becomes smaller, and vice versa. Such uncertainty brings problems to occasions where there are dimensional positioning requirements between the two parts of the transmission box. , the accuracy of the gearbox cannot be guaranteed

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