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Two-way contact stern shaft sealing device for ships

A technology of sealing device and stern shaft, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., and can solve the problem that the sealing ring does not have a good sealing effect on the sealing end cover.

Inactive Publication Date: 2019-02-19
东台市岳东橡胶密封件厂
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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 a sealing ring; the sealing ring is fastened on the stern shaft, and the sealing ring abuts against the inner surface of the sealing end cover through an elastic pressure-resisting mechanism, so 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 stern shaft will drive the sealing ring to move, so that the degree of pressure resistance of the sealing ring and the sealing end cover Changes occur, causing the sealing ring to not have a good sealing effect on the sealing end cap

Method used

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  • Two-way contact stern shaft sealing device for ships

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Embodiment Construction

[0011] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 As shown, a two-way abutting marine stern shaft sealing device includes a stern shaft 1, a connecting end cover 4, a connecting ring plate 2, a sealing ring 6, an axial elastic body 3, and a radial elastic body 5; the connection The end cover 4 is installed on the outer side of one end of the stern shaft 1; the connecting ring plate 2 is tightly sleeved and installed on the outer side of the stern shaft 1; the sealing ring 6 is tightly sleeved on the stern shaft 1; The axial elastic body 3 has a ring structure, and the axial elastic body 3 is sleeved on the stern shaft 1; the axial elastic body 3 is located between the connecting ring plate 2 and the sealing ring 6; the axial elastic body 3 3. One end elastically presses against one end surface of the sealing ring 6; the other end surface of the sealing ring 6 presses a...

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Abstract

The invention discloses a two-way contact stern shaft sealing device for ships. The sealing device includes a stern shaft, a connecting end cover, a connecting ring plate, a sealing ring, an axial elastic body and radial elastic bodies. By means of the axial crushing of the axial elastic body to the sealing ring, the sealing ring is closely attached to the inner side of the connecting end cover; and the sealing ring is radially extruded to be attached to the side of the stern shaft by the radial elastic bodies, and sealing is achieved in both the radial and axial directions.

Description

technical field [0001] The invention relates to a two-way contact type marine stern shaft sealing device. Background technique [0002] At present, the marine stern shaft sealing device generally includes a stern shaft, a sealing end cover, and a sealing ring; the sealing ring is fastened on the stern shaft, and the sealing ring abuts against the inner surface of the sealing end cover through an elastic pressure-resisting mechanism, so 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 stern shaft will drive the sealing ring to move, so that the degree of pressure resistance of the sealing ring and the sealing end cover Changes occur, causing the sealing ring to not have a good sealing effect on the sealing end cap. Contents of the invention [0003] Aiming at the shortcomings of the above-mentioned prior art, the problem to be solved b...

Claims

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Application Information

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IPC IPC(8): F16J15/34
CPCF16J15/3452
Inventor 陶伟陆晖绣汪子昂
Owner 东台市岳东橡胶密封件厂
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