Low-temperature-resistant air spring upper sub-opening sealing method and structure

An air spring, low temperature resistant technology, used in springs, springs/shock absorbers, gas shock absorbers, etc., can solve the problems of air spring leakage, assembly errors, etc., to improve sealing reliability, convenience and accuracy sexual effect

Active Publication Date: 2020-05-08
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicone rubber O-ring is a split design, which can easily cause assembly errors that are difficult to detect during assembly, resulting in assembly gaps and air spring leakage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Combine below Figure 1 to Figure 4 Embodiments of the present invention are described in detail.

[0028] A sealing method for the upper slit of a low temperature resistant air spring, including an upper cover plate 1, a retaining ring 2 with an annular groove, a connecting bolt 3 connecting the upper cover plate 1 and the retaining ring 2, and the upper slit 4 of the airbag, the upper slit 4 Compressed between the upper cover plate 1 and the retaining ring 2, the retaining ring 2 and the connecting bolt 3 are both arranged on the radially outside of the upper sub-port 4, and the capsule connected to the upper sub-port 4 is attached to the inner wall of the retaining ring 2 along the It is characterized in that a sealing rubber ring 5 is set between the upper cover plate 1 and the buckle ring 2, and the radial position of the sealing rubber ring 5 is set between the upper sub-port 4 and the connecting bolt 3 and is connected with the upper sub-port 4 Both are radially...

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PUM

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Abstract

A low-temperature-resistant air spring upper sub-opening sealing method and structure comprises an upper cover plate, a buckle ring, a connecting bolt for connecting the upper cover plate with the buckle ring and an upper sub-opening of an air bag. The upper sub-opening is compressed between the upper cover plate and the buckle ring. The buckle ring and the connecting bolt are both arranged on theradial outer side of the upper sub-opening and are attached to a bag body connected with the upper sub-opening and the inner wall of the buckle ring, and a sealing rubber ring is arranged between theupper cover plate and the buckle ring; the radial position of the sealing rubber ring is arranged between the upper sub-opening and the connecting bolt and is radially separated from the upper sub-opening and the connecting bolt; and the sealing rubber ring forms interference compression between the upper cover plate and the buckle ring, so that radial outer side sealing of the upper sub-openingis achieved. By the adoption of the low-temperature-resistant air spring upper sub-opening sealing method and structure, the air outleakage path between the upper cover plate and the buckle ring is extended, multi-sealing protection is formed, and the sealing reliability of the upper sub-opening of an air spring is improved; the sealing rubber ring is vulcanized in the buckle ring, and the sealingrubber ring is integrated with the buckle ring so that the sealing rubber ring can be smoothly and accurately pressed into a groove of the upper cover plate, so that the assembling convenience and precision are improved.

Description

technical field [0001] The invention relates to a sealing method and structure for an upper slit of a low-temperature-resistant air spring, which realizes effective sealing of the air spring under low-temperature conditions. Background technique [0002] The sealing of the upper mouth of the air spring for rail transit mainly relies on installing and fixing the upper mouth of the airbag between the upper cover plate and the buckle through a certain number of screws. The purpose of compressing the slit rubber on the air bag is achieved by the tightening force exerted by the screw, thereby realizing the sealing performance of the slit on the air spring. [0003] 1) CN109944894A patent discloses a sealing structure, method and product for the upper slit of a low-temperature resistant air spring. The sealing structure of the upper spigot of the low temperature resistant air spring includes an upper cover plate, a retaining ring, a connecting bolt and an upper spigot. The radia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/04F16F9/36
CPCF16F9/04F16F9/0454F16F9/369
Inventor 段国奇周日炎程海涛梁弘毅周志鹏
Owner ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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