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Oil lubrication stern shaft bearing sealing device

A technology of bearing sealing and oil lubrication, which is applied in the direction of propulsion transmission, engine sealing, and transmission with synchronous propulsion components, etc. It can solve the problem of pressure resistance changes and sealing rings that do not have a good sealing effect on the sealing end cover , elastic pressure reduction and other issues

Inactive Publication Date: 2021-04-09
江苏德立密封科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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  • Oil lubrication stern shaft bearing sealing device
  • Oil lubrication stern shaft bearing sealing device
  • Oil lubrication stern shaft bearing sealing device

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Embodiment Construction

[0019] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 5 As shown, an oil-lubricated stern shaft bearing sealing device includes a stern shaft 1, a front end cover 2, a rear end cover 3, a sealing assembly 4, an adjustment mechanism 5, and an abutting lubricating ring body 6; the front end cover 2 and the rear end The cover 3 is connected end-to-end; the stern shaft 1 is installed between the front end cover 2 and the rear end cover 3; the sealing assembly 4 includes a fastening sealing ring 45, a pressing sealing ring 44, a telescopic hose 46, Squeeze ring 43, piercing rod 42, guide sliding rod 41, driving ring 47, pressing elastic body 48; the inside of the rear end cover 3 is provided with a plurality of guide channels 31 along its length direction; the rear end cover 3 is provided with an annular drive groove 33 inside the outer end surface; the outer ends of the plur...

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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...

Claims

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Application Information

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IPC IPC(8): F16J15/324F16J15/3268F16J15/3284B63H23/32
CPCB63H23/32B63H23/321F16J15/324F16J15/3268F16J15/3284
Inventor 陶伟
Owner 江苏德立密封科技有限公司
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