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Sealing method and sealing structure for vertical soaking rotary main shaft

A technology of rotating spindle and sealing structure, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of unsuitable vertical soaking rotating spindle and low service life, and achieve simple structure, good wear resistance and long service life long effect

Pending Publication Date: 2021-02-12
CHONGQING GEARBOX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first purpose of the present invention is to solve the problem that the existing sealing structure is not suitable for the vertical immersion rotating spindle, and to provide a sealing method for the vertical immersion rotating spindle. The first layer is the rotary seal formed by the seal ring, the second layer of seal includes the plane seal that constitutes the main seal, and the extrusion seal and the rotary seal that seal the static ring and the dynamic ring of the plane seal member. The three seal forms form a combination The second layer of sealing of the sealing structure uses the characteristics of good wear resistance and long service life of the sealing ring and flat seal, which effectively solves the problem of low life of the traditional sealing structure. At the same time, the multiple sealing structure is used to ensure the sealing effect, especially suitable for cement The vertical immersion rotating spindle for the upper chamber immersion required by the development of building materials and thermal power industries, and the lower chamber to prevent oil pollution
The second object of the present invention is to provide a sealing structure to solve the problem that the traditional sealing structure is not suitable for the vertical immersion rotating main shaft

Method used

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  • Sealing method and sealing structure for vertical soaking rotary main shaft

Examples

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Embodiment 1

[0023] Example 1, see figure 1 , a sealing method for a vertical immersion rotating spindle, through which the cavity 7 and the end cover 4 that are relatively fixed and sealed are connected to form a sealing member setting space on the outer periphery of the main shaft 1; in the sealing member setting space, from the immersion environment to the outside sequentially Form the first layer of sealing and the second layer of sealing; the first layer of sealing is a rotary seal formed by a sealing ring, and the first layer of sealing is formed between the main shaft 1 and the end cover 4; the second layer of sealing is made of materials with different hardness The moving ring 10 and the static ring 6 are in contact with the flat seal, the second layer of sealing is formed between the main shaft 1 and the cavity 7, and the static ring 6 and the cavity 7 form an extrusion seal, and the gap between the moving ring 10 and the cavity 7 Form a rotating seal between them; wherein, there ...

Embodiment 2

[0026] Example 2, see figure 1 , a sealing structure for a vertical immersion rotating spindle, including a cavity 7 and an end cover 4 sleeved on the outer periphery of the spindle 1, the cavity 7 and the end cover 4 form a static seal connection; in the inner space of the cavity 7 and the end cover 4 Between the main shaft 1, a first sealing ring 2, a static ring 6 and a moving ring 10 are sequentially arranged outward from the soaking environment; the first sealing ring 2 is set on the main shaft 1, and the first sealing ring 2 and the end cover 4 is provided with a first O-ring 3; the static ring 6 and the moving ring 10 are made of materials with different hardness; the static ring 6 is set on the cavity 7, and a There is a gap of 0.1mm-0.3mm between the second O-ring 9, the static ring 6 and the main shaft 1, and the static ring 6 is also in contact with the moving ring 10; the moving ring 10 is interference fit on the main shaft 1, and the moving ring 10 A third O-ring...

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Abstract

The invention discloses a sealing method and a sealing structure for a vertical soaking rotary main shaft. The sealing method comprises the following steps: forming a sealing member arrangement spaceat the periphery of the main shaft through a cavity and an end cover which are relatively fixed and are in sealed connection; and in the sealing element arrangement space, sequentially forming two layers of sealing outwards from the soaking environment, wherein the first layer of sealing is rotary sealing formed between the main shaft and the end cover, and the second layer of sealing is plane sealing achieve abutting through a static ring and a movable ring, the second layer of sealing is formed between the main shaft and the cavity, the static ring and the cavity form extrusion sealing, andthe movable ring and the cavity form rotary sealing. The sealing structure is obtained according to the method. The sealing method has the beneficial effects that the sealing method is ingenious in conception, the sealing effect is ensured through multiple sealing structures, and the sealing method is particularly suitable for the vertical soaking rotary main shaft with an upper cavity soaking anda lower cavity erdicating oil stain. The sealing structure forms the sealing form through specific components, the structure is simple, and the service life is long.

Description

technical field [0001] The invention relates to a rotating shaft sealing technology, in particular to a sealing method and a sealing structure for a vertical soaking rotating shaft. Background technique [0002] The economic operation status of auxiliary motors in cement building materials and thermal power industries is directly related to the operating efficiency of equipment. With the continuous deepening of the country's supply-side reform, energy saving and consumption reduction have become the goal pursued by various manufacturers. In recent years, with the development of permanent magnet motors, mechatronic equipment has gradually emerged in cement building materials and thermal power industry restructuring projects. Mechatronics is to use a rotating spindle to combine the motor with the traditional mechanical transmission to directly drive the mill to run. Due to the removal of redundant intermediate links, the system chain is simple and clear, and has the remarkab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16F16J15/18F16J15/28F16J15/3268
CPCF16J15/16F16J15/181F16J15/28F16J15/3268
Inventor 王春梅刘剑波何黎明朱家生
Owner CHONGQING GEARBOX