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Wear-resistant shaft seal type rotary sealing device and machining process

A technology of rotary sealing and shaft sealing, which is applied in the direction of engine sealing, shaft, shaft and bearing, etc. It can solve problems such as surface scratches and rotary joint leakage, and achieve the effects of prolonging service life, preventing dry friction, and improving smoothness

Pending Publication Date: 2022-01-04
FUJIAN MINXUAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface treatment process of this rotating shaft can only last for 4-5 months under the condition of mixing water and steam and rotating, and surface scratches will appear, and as time goes on, the scratches will become deeper , resulting in the leakage of the rotary joint

Method used

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  • Wear-resistant shaft seal type rotary sealing device and machining process
  • Wear-resistant shaft seal type rotary sealing device and machining process

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Embodiment Construction

[0014] In order to further understand the structure, features and other purposes of the present invention, the attached preferred embodiments are now described in detail with accompanying drawings as follows. The embodiments described in the accompanying drawings are only used to illustrate the technical solutions of the present invention and are not limiting this invention.

[0015] Such as figure 1 with figure 2 As shown, a rotary sealing device in the form of a wear-resistant shaft seal includes a rotating shaft 1; wherein, the rotating shaft 1 is provided with a casing 5, and at two annular sealing surfaces where the casing 5 contacts the rotating shaft 1, the casing One side of shaft 5 is provided with rotating gray ring 4, and one side of shaft 1 is provided with ceramic Cr 2 0 3 layer 12; the outer sides of the two annular sealing surfaces are provided with bearings 6, which support and fix the rotating shaft 1 front and rear, and the outer sides of the bearings 6 a...

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Abstract

The invention provides a wear-resistant shaft seal type rotary sealing device and a machining process. The wear-resistant shaft seal type rotary sealing device comprises a rotating shaft, wherein the rotating shaft is sleeved with a shell; bearings are arranged at the joints of the rotating shaft and the two ends of the shell; circlips for holes are arranged on the outer sides of the bearings; a straight-through type pressure oil injection cup communicated to the bearings is arranged on the upper side of the shell; an oil port is formed in the lower side of the shell; a shaft-used rotating Glyd ring is arranged on the sealing surface, making contact with the rotating shaft, of the shell and located on one side of the shell; and a ceramic Cr203 layer is arranged on one side of the rotating shaft. According to the wear-resistant shaft seal type rotary sealing device and the machining process provided by the invention, the sealing surface between the rotating shaft and the shell is provided with the shaft-used rotating Glyd ring and the ceramic Cr203 layer, and through the ceramic Cr203 layer, the hardness and the smoothness of the sealing surface can be improved, a self-lubricating effect is achieved, the wear resistance is increased, the rotating friction resistance with the shaft-used rotating Glyd ring is reduced, wear of the rotating shaft and the shaft-used rotating Glyd ring is effectively protected, the wear-resistant shaft seal type rotary sealing device is suitable for being used under the mixed working condition of water, steam and the like, and the service life can be greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of rotary joints, in particular to a wear-resistant rotary sealing device in the form of a shaft seal and a processing technology. Background technique [0002] Due to the fact that the surface of the rotating shaft on the shaft seal type rotary joint with water and steam mixed in the market is not wear-resistant, that is, a deep scratch is often worn on the sealing surface by the sealing ring (rotary gray ring for the shaft), which affects The tightness of the sealing surface of the rotating shaft is impaired, resulting in leakage, which affects the service life of the rotary joint. At present, the surface treatment process of the sealing surface of the rotating shaft is: the surface is subjected to high-frequency treatment, followed by rough grinding of the outer circle, hard chrome plating, and fine grinding of the outer circle. The surface treatment process of this rotating shaft can only last for 4-5 m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16F16C3/02
CPCF16J15/162F16J15/16F16C3/02
Inventor 朱子谦朱斌林建华陈惠玲林晓平陈伟滨黄泓锟黄燕霞
Owner FUJIAN MINXUAN TECH
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