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A sealing method for the air bag upper slit of a large curved air spring

A technology of air springs and airbags, applied in the direction of springs, springs/shock absorbers, shock absorbers, etc., can solve the problems of strict requirements on the flatness of the upper cover plate and the size of the retaining ring, difficult manufacturing and inspection, etc. The difficulty of manufacturing and inspection, the effect of reducing the difficulty of manufacturing and inspection, and improving the applicability

Active Publication Date: 2019-08-09
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] All the air springs in the above-mentioned patent documents use the interference compression of the rubber on the mouth of the airbag to achieve the sealing effect. There are strict requirements on the size of the mouth of the airbag, the flatness of the upper cover plate, and the size of the buckle during processing, and it is difficult to manufacture and inspect. Larger issues

Method used

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  • A sealing method for the air bag upper slit of a large curved air spring
  • A sealing method for the air bag upper slit of a large curved air spring
  • A sealing method for the air bag upper slit of a large curved air spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: as figure 2 and image 3 Shown, a kind of sealing method of the air bag upper mouth of a large curved bag type air spring, it is that the air bag upper mouth 2 is first arranged as the air bag upper mouth body 211 of ring shape, the air bag upper mouth sealing ring 212 and the air bag upper mouth There are three parts of the mouth connection ring 213, the airbag upper mouth seal ring 212 is located at the outer position of the airbag upper mouth body 211, and the airbag upper mouth mouth body 211 and the airbag upper mouth seal ring 212 pass through the airbag upper mouth mouth connection ring 213 Connected into one; then install the airbag upper sub-port 2 between the upper cover 3 and the buckle 4, lock the upper cover 3 and the buckle 4 together through the screw 1, and use the upper cover 3 and the buckle 4 Pressing the sealing ring 212 of the upper mouth of the airbag makes the sealing ring 212 of the upper mouth of the airbag form interference comp...

Embodiment 2

[0045] Embodiment 2: as Image 6 As shown, compared with Embodiment 1, the difference is that: along the axial direction of the airbag upper slit sealing ring, the section of the airbag upper slit sealing ring 212 is set to be elliptical.

Embodiment 3

[0046] Embodiment 3: as Figure 7 As shown, compared with Embodiment 1, the difference is that: along the axial direction of the airbag upper slit sealing ring, the section of the airbag upper slit sealing ring 212 is set in a rectangular shape such as a rectangle or a square.

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Abstract

The invention discloses a method for sealing an air bag seam allowance of a large bladder type air spring, comprising the steps of first dividing the air bag seam allowance into three parts, namely an annular air bag seam allowance body, an air bag seam allowance sealing ring and an air bag seam allowance link ring, the air bag seam allowance sealing ring is located outside of the air bag seam allowance body, and the air bag seam allowance body and the air bag seam allowance sealing ring are connected through the air bag seam allowance link ring; then installing the air bag seam allowance between an upper cover plate and a retaining ring which are tightened together with screws, compressing the air bag seam allowance sealing ring with the upper cover plate and the retaining ring so that the air bag seam allowance sealing ring is in interference compression so as to achieve the purpose of sealing the air bag seam allowance. In the invention, on the premise of ensuring airtightness, the requirements for the size of the air bag seam allowance, the flatness of the upper cover plate and the size of the retaining ring can be reduced, so that the manufacturing and inspection difficulty is reduced.

Description

technical field [0001] The invention relates to a method for sealing an air bag, in particular to a method for sealing an upper slit of an air bag of a large curved air spring. Background technique [0002] Air spring is a kind of spring that is filled with compressed air in a retractable airtight container and uses air elasticity, commonly known as air bag, air bag cylinder, leather bag cylinder, etc. [0003] The air spring can be used on the bogie of rail transit vehicles to support the load and realize the deformation of the bogie in the vertical direction and in the horizontal plane. Because the air spring has the advantages of strong bearing capacity, stable natural vibration frequency, strong deformation ability, and can keep the height of the car body constant by cooperating with the control device, the air spring is widely used in rail transportation such as main line passenger cars, EMUs and urban rail vehicles. on the vehicle. In actual work, the air spring uses...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/36F16F9/32
CPCF16F9/32F16F9/36
Inventor 张涛程海涛杨李核
Owner ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD