Vertical marine electric machine protecting and sealing device

Abstract

The invention discloses a vertical marine electric machine protecting and sealing device which comprises a shaft sleeve, a spring, a deflection sleeve, a compensation ring, a first O-shaped ring, a non-compensation ring, a second O-shaped ring, a conical end top thread, a first cylindrical pin, a third O-shaped ring, an end cover, a fourth O-shaped ring and a second cylindrical pin. The deflection sleeve, the spring, the compensation ring, the fourth O-shaped ring and the second cylindrical pin are arranged on the end cover; the first O-shaped ring is arranged on the compensation ring; the second O-shaped ring is arranged on the non-compensation ring; the third O-shaped ring is arranged in the shaft sleeve; and the conical end top thread and the first cylindrical pin are arranged on the shaft sleeve. The vertical marine electric machine protecting and sealing device adopts a self-flushing structure in the condition that no external flushing system exists, provides good environment for a sealing end surface to the utmost extent, reduces the sintering degree of a mechanical sealing friction pair and increases the service life of mechanical seal.

Description

technical field [0001] The invention relates to a protection and sealing device for a vertical marine motor. Background technique [0002] In the prior art, in most marine and industrial applications, due to the limited space and load requirements of marine equipment, the marine motor protection sealing device does not have an additional external flushing system, and when there are foreign objects or fluids outside the motor, It is easy to cause the mechanical seal to fail, so the sealing device must not only withstand the harsh working conditions of the hull itself shaking and tilting, but also provide a good environment for the seal when there is no external flushing system and the external environment of the motor is harsh. Long-term operation, the existing mechanical seal device used here often sinters on the end face of the seal friction pair under the above working conditions or when there are foreign objects and other fluids outside the motor, it is easy to cause the ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in most marine and industrial applications, due to the limited space and load requirements of marine equipment, the marine motor protection sealing device does not have an additional external flushing system, and when there are foreign objects or fluids outside the motor, It is easy to cause the mechanical seal to fail, so the sealing device must not only withstand the harsh working conditions of the hull itself shaking and tilting, but also provide a good environment for the seal when there is no external flushing system and the external environment of the motor is harsh. Long-term operation, the existing mechanical seal device used here often sinters on the end face of the seal friction pair under the above working conditions or when there are foreign objects and other fluids outside the motor, it is easy to cause the mechanical seal to fail in a short period of time. failure, and then lost the protective effect of the marine motor, the motor is easily damaged due to external reasons in this case, to a large extent, it cannot meet the normal work of the existing marine motor, and also increases the cost of the user, which is the present There is a problem with the sealing device

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