Shock absorber rolling and sealing method

A shock absorber and rolling technology, which is applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems of material thinning, shock absorber seal damage and oil leakage, etc., to achieve good fit, Improve structural strength and smooth appearance

Active Publication Date: 2017-06-13
隆昌山川机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional rolling hem sealing method usually has defects such as material thinning at the rolling hem and axial static seal rubber extrusion, which leads to early damage to the shock absorber seal and oil leakage

Method used

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  • Shock absorber rolling and sealing method
  • Shock absorber rolling and sealing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] After axial flanging and sealing, the flanging metal presses the guide seat 6 tightly, so that a certain axial compressive stress remains in the axial direction of the working cylinder 7; the sealing flanging metal becomes thicker, and at the same time, the flanging mouth is bent to constrain the static seal Extrusion of the rubber 10, the mouth of the hemming metal is pressed tightly on the static sealing rubber 10 on the edge of the oil seal 5, and the static sealing rubber 10 will not tear; the axial rolling hemming sealing process achieves the thickening of the hemming metal The purpose of extruding the static sealing rubber 10 is to improve strength and bending forming restraint. The rolling wheel 4 is simple in structure and convenient to manufacture, and can be popularized and applied in the production of shock absorbers. The appearance of the new rolled hemming sealing part is smooth and clean, and it fits well with the guide seat 6 and the oil seal 5, fully m...

Embodiment 2

[0026] Embodiment 2, optimize design on the basis of embodiment 1, as Figure 4 , Figure 5 , Image 6 and Figure 7 As shown in , the radial sealing shock absorber is rolled and folded to become thicker, and the inclined sealing rolling wheel 4 rolls and bends the metal at the edge of the shock absorber 2 until the 5 corners of the oil seal of the shock absorber 2 are sealed. The part is pressed tightly against the guide seat 6; after a predetermined time, the rolling wheel 4 is gradually turned to the level, and the bent metal is radially squeezed by the arc surface of the retracting rolling wheel 4 to bend; the shock absorber 2 The hydraulic cylinder of the equipment continues to be sent vertically upward with a certain pressure. The conical surface of the rolling wheel 4 and the arc surface tangent to the conical surface and the end surface of the steel plate of the oil seal 5 enclose a cavity for bending metal after being turned over. The cylindrical surface of the pre...

Embodiment 3

[0028]Embodiment 3, optimize design on the basis of embodiment 1 or embodiment 2, the angle that rolling wheel 4 is inclined to set in described rolling flanging process is 45 °; Side positioning device is centering jig, fixed A positioning wheel is arranged on the center fixture. The rolling of the rolling wheel 4 at a specific angle is beneficial to forming the structure of the shock absorber after sealing, and the quality becomes thicker after sealing. The centering jig equipped with positioning wheels is used for centering and clamping the shock absorber, fully ensuring its positioning accuracy and sealing quality in rolling sealing, and improving the yield rate of finished products.

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PUM

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Abstract

The invention discloses a shock absorber rolling and sealing method. An axial sealing shock absorber rolling, edge folding and thickening process and a radial sealing shock absorber rolling, edge folding and thickening process are adopted. According to the method, shock absorber sealing, edge folding and thickening are achieved, an edge folding opening part is bent to limit axial static sealing rubber extrusion, the opening part of the edge folding metal tightly presses static sealing rubber at the edge of the oil seal end face, and the static sealing rubber cannot be extruded and torn; and edge folding metal tightly presses an oil seal steel back, and radial static sealing rubber is supported on a guide base taper face. The shock absorber sealing structure strength is improved through thickening of bending metal and bending of the opening part of the bending metal.

Description

technical field [0001] The invention relates to the technical field of shock absorbers, in particular to a rolling sealing method for shock absorbers. Background technique [0002] figure 1 The folding and sealing structure of the double-tube hydraulic shock absorber shown in the figure uses the bending at the mouth of the liquid storage cylinder to buckle the shock absorber into a closed whole. Due to the different methods of static sealing of oil seals, which are divided into axial seals and radial seals, the requirements for sealing are also different. [0003] 1. Requirements for the hemming sealing of the axial seal: A. After the hemming and sealing, the hemming metal must press the guide seat tightly, so that a certain axial compressive stress remains in the axial direction of the working cylinder; B. The mouth of the hemming metal is tight. Press on the static sealing compound on the edge of the end face of the oil seal, and the compound must not be torn from the oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D19/06F16F9/36
CPCB21D19/06F16F9/36
Inventor 陈隆彬邹卫东梁宏
Owner 隆昌山川机械有限责任公司
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