Double-lip oil seal device capable of regulating pressure automatically

Abstract

The invention relates to a double-lip oil seal device capable of regulating pressure automatically. The double-lip oil seal device capable of regulating the pressure automatically comprises a double-lip oil seal, a guide sleeve, a circular base plate, a buffer spring, a guide screw and a circular top cover, wherein the outer lip of the double-lip oil seal is slidably adhered to the outer wall of the guide sleeve in a sealed way; the inner lip of the double-lip oil seal is slidably adhered to a system working shaft in a sealed way; the circular base plate is arranged on the double-lip oil seal; a screw hole matched with the guide screw is formed on the circular base plate; the guide screw is arranged between the double-lip oil seal and the circular top cover; the guide screw is in threaded fit with the screw hole on the circular pad plate; the buffer spring is sleeved on the guide screw and is positioned between the circular base plate and the circular top cover; and the circular top cover is fixed on an outer end port of the guide sleeve through a fixing bolt. The double-lip oil seal device capable of regulating the pressure automatically can regulate the pressure automatically according to the pressure condition in a machine and ensure a stable pressure state in the machine, so that an explosion hazard caused by overhigh pressure is effectively prevented, the service life of inner components is prolonged, and excellent performance of the machine is ensured.

Description

technical field [0001] The invention relates to an automatic pressure regulating device for an engine and transmission equipment, in particular to an automatic pressure regulating and sealing device for a double-lip oil seal. Background technique [0002] In today's technological development, the engine and transmission equipment must always be inseparable from the sealing oil seal to achieve the sealing condition. With the development of science and technology, there are more and more requirements for devices with various sealing structures, but these oil seals In the sealing device, it only acts as a fixed sealing role. In the sealing device, it still needs to be fixed in the cavity by the cooperation of the outer diameter, and there is no movement function. This is for some machines with high requirements for the transmission system. In other words, the system needs to ensure a good voltage regulation function, which needs to be assisted by other equipment. Because the o...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an oil seal device that can automatically adjust pressure to solve the problem of unstable internal pressure when the engine and hydraulic equipment are switched between high speed and low speed. The device can realize the adjustment of the internal pressure of the machine. Stable, protects the service life of the machine parts, ensures the best performance of the machine when it is working, and greatly improves the working efficiency of the machine

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