Oil lubrication stern shaft bearing sealing device

Abstract

The invention discloses an oil lubrication stern shaft bearing sealing device. The device comprises a stern shaft, a front end cover, a rear end cover, a sealing assembly, an adjusting mechanism and an abutting lubrication ring body. According to the oil lubrication stern shaft bearing sealing device, because theabutting lubrication ring body is installed on the periphery of the interior of the front end cover, the inner side of the peripher of the abutting lubricating ring body abuts against the stern shaft, the abutting lubricating ring body is made of a polytetrafluoroethylene material, a lubricating annular groove is formed in the periphery of the inner side of the abutting lubricating ring body, lubricating oil is injected into the lubricating annular groove, and therefore, the heat dissipation performance and the lubrication performance of the stern shaft and the abutting lubricating ring body are better.

Description

technical field [0001] The invention relates to an oil lubricated stern shaft bearing sealing device. Background technique [0002] At present, the marine stern shaft sealing device generally includes a stern shaft, a sealing end cover, and two sealing rings, one sealing ring is fastened on the stern shaft, and the other sealing ring abuts against the inner surface of the sealing end cover through an elastic pressure-resisting mechanism. In this way, the stern shaft and the sealing end cover are sealed by the sealing ring, but during the long-term use of the stern shaft, the stern shaft will be displaced in the axial direction, and the other sealing ring pressed against the inner side of the end cover is subjected to elastic resistance when the stern shaft moves The pressure will decrease, so that the degree of pressure resistance between the sealing ring and the sealing end cover will change, so that the sealing ring will not have a good sealing effect on the sealing end co...

AI Technical Summary

Problems solved by technology

[0002] At present, the marine stern shaft sealing device generally includes a stern shaft, a sealing end cover, and two sealing rings, one sealing ring is fastened on the stern shaft, and the other sealing ring abuts against the inner surface of the sealing end cover through an elastic pressure-resisting mechanism. In this way, the stern shaft and the sealing end cover are sealed by the sealing ring, but during the long-term use of the stern shaft, the stern shaft will be displaced in the axial direction, and the other sealing ring pressed against the inner side of the end cover is subjected to elastic resistance when the stern shaft moves The pressure will decrease, so that the degree of pressure resistance between the sealing ring and the sealing end cover will change, so that the sealing ring will not have a good sealing effect on the sealing end cover. Therefore, it is necessary to develop a type that will not move when the stern shaft moves axially. Affects the degree of pressure between the sealing ring and the rear end cover, and also needs to improve the performance of heat dissipation and friction elimination

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