Streamline-shaped damping throttling hole structure for oil damper and oil damper
A technology of hydraulic shock absorber and orifice, which is applied in the field of hydraulic shock absorbers, can solve the problems of unstable damping characteristics of shock absorbers, affecting the oil pressure of the stretching chamber, etc., achieve precise control of damping characteristics, and solve processing problems. performance effect
Pending Publication Date: 2021-12-21
SHANDONG LINGBORUI RAILWAY TRANSPORTATION TECH CO LTD
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Problems solved by technology
[0003] Although the orifice structure on the existing piston and compression valve can meet the force-velocity characteristics at a given speed, when the oil is in motion, the existing stepped orifice has uncontrollable energy loss, which affects the pulling force. The oil pressure in the stretching cavity and stretching cavity, the damping characteristics of the shock absorber are unstable
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[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention fall within the protection scope of the present invention.
[0020] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "com...
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The invention relates to a streamline-shaped damping throttling hole structure for an oil damper and the oil damper. The streamline-shaped damping throttling hole structure comprises a piston and throttling holes, the middle of the piston is provided with a mounting hole, and the upper top face and the lower bottom face of the piston are provided with a top groove and a bottom groove respectively; the two throttling holes are symmetrically formed in the two sides of the piston with the mounting hole as the center, inlets of the throttling holes are located in the top groove in the upper top face, and outlets of the throttling holes are located in the bottom groove in the lower bottom face; and each throttling hole is composed of a reduction type structure and a straight cylinder structure which are integrally formed, the reduction type structures are reduced in a streamline shape from the inlets to the outlets, and the straight cylinder structures are located at the outlets. The machining performance and stability of the throttling holes of the damper can be achieved; and the damping characteristic of the damper is accurately controlled.
Description
technical field [0001] The invention relates to the field of an oil pressure shock absorber, in particular to a streamlined damping orifice structure for the oil pressure shock absorber and the oil pressure shock absorber. Background technique [0002] The characteristics of the structural design of the oil pressure shock absorber are: when the shock absorber works in the compression stroke, the piston in the working cylinder moves downward, the volume in the lower chamber of the piston decreases and the oil pressure rises, and the oil passes through the throttling on the piston. The hole flows into the chamber above the piston (upper chamber). The upper cavity is occupied by the piston rod, so the increased volume of the upper cavity is smaller than the reduced volume of the lower cavity, so a part of the oil can push the compression valve system and flow back to the oil storage cylinder; the resistance of the valve system to the oil Form a compression damping force; when ...
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IPC IPC(8): F16F9/34F16F9/32F16F9/36
CPCF16F9/3481F16F9/348F16F9/3228F16F9/368
Inventor 王成国杨立举胡晓依刘晓明刘月峰黄启伟
Owner SHANDONG LINGBORUI RAILWAY TRANSPORTATION TECH CO LTD