A laser weldable shock absorber piston rod assembly
A technology of laser welding and piston rod, which is applied in the direction of laser welding equipment, shock absorbers, shock absorbers, etc., can solve the difficulty of hollow piston rod manufacturing, complex structure, uncertainty and the complexity of adjusting the restoration damping force and other issues to achieve the effect of simplifying the complexity, simplifying the structure of the valve system and reducing the manufacturing cost
Inactive Publication Date: 2017-10-10
LIAONING UNIVERSITY OF TECHNOLOGY
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- Abstract
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Problems solved by technology
At the present stage, during the production of shock absorbers, the piston, compensation valve system, recovery valve system, etc. are installed on the piston rod, and the method of threaded connection and anti-loosening is generally used. The disadvantage is that the piston rod is "non-user end End)" structure is complex, especially the hollow piston rod used for damping adjustable shock absorber is more difficult to manufacture
In addition, the recovery valve system is generally composed of multiple spring pieces with different thicknesses and diameters, so the uncertainty of the combination of the spring pieces increases the complexity of the adjustment of the recovery damping force
Method used
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[0020] Such as figure 1 A shock absorber piston rod assembly capable of laser welding is shown, which has a piston rod 1, and the piston rod 1 is sequentially provided with a recovery constraint seat 5, a recovery sheet 4, and a piston 2 with a piston ring 3 in its axial direction. , circulation sheet 6, spring sheet 7, adjusting gasket 8 and round pad 9; the restoration restriction seat 5 is a stepped ring along its axial direction, and the restoration restriction seat 5 is set on the non-user end of the piston rod, that is, the piston end , and connected with the piston rod by laser welding, so that through the restoration of the restraint seat 5, the axial restraint of the circulation piece 6, the spring piece 7, the adjustment washer 8 and the round washer 9 are carried out, and the axial They are arranged and fixed on the piston rod, and at the same time apply axial preload to components such as the circulation piece 6, the spring piece 7, the adjusting gasket 8 and the r...
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Abstract
The invention discloses a laser welded shock absorber piston rod assembly. The shock absorber piston rod assembly is provided with a piston rod, wherein the piston rod is provided with a restorable constraining seat, a restorable sheet, a piston sleeved with a piston ring, a circulation sheet, a spring sheet, an adjusting gasket and a round pad in sequence along the axial direction; the restorable constraining seat is in a stepped ring shape in the axial direction, sleeves a non-user end, namely a piston end, of the piston rod and is connected with the piston rod in a laser welding manner; and axial constraint and axial pre-loaded pressure are applied to the circulation sheet, the spring sheet, the adjusting gasket and the round pad through the restorable constraining seat. With the adoption of the axial stepped ring shape of the restorable constraining seat, the combination of a stepped diameter and height difference forms graded constraint on axial warping deformation of the restorable sheet, so that the restorable sheet forms graded variable axial deformation rigidity and graded control on the difficult degree of change of circulation area of a restorable valve system is realized, and furthermore, the complexity degree of adjusting a restorable damping force is simplified.
Description
technical field [0001] The invention belongs to the field of automobile shock absorber piston rods, and in particular relates to a laser weldable shock absorber piston rod assembly, specifically a weldable shock absorber that uses laser welding to connect the piston rod, piston and valve system together Piston rod assembly. Background technique [0002] The shock absorber piston rod assembly includes piston rod, piston, compensation valve system, recovery valve system, etc. It is an important part of the automobile suspension shock absorber, so the structure and connection method of the piston rod assembly have a great influence on the performance of the shock absorber. has an important impact. At the present stage, during the production of shock absorbers, the piston, compensation valve system, recovery valve system, etc. are installed on the piston rod, and the method of threaded connection and anti-loosening is generally used. The disadvantage is that the piston rod is "...
Claims
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IPC IPC(8): F16F9/32F16F9/54B23K26/24
CPCB23K26/24F16F9/3228
Inventor 王天利孙晓帮何力佳李艾静田雪
Owner LIAONING UNIVERSITY OF TECHNOLOGY