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Damping device

A technology of damping device and sealing device, applied in the direction of shock absorber, spring, spring/shock absorber, etc., can solve problems such as inapplicability or placement of piston rod

Inactive Publication Date: 2013-10-09
王旭安
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The damping device must pass the piston rod through the two ends of the cylinder to realize the limitation of the movement trajectory. Generally, there is no problem in the case of a relatively sufficient application space, but when it is applied to a relatively narrow application space such as automobile shock absorbers When the piston rod passes through both ends of the cylinder, it is not applicable, and for some cases where the movement space is relatively small, it is also not applicable or the position where the piston rod runs

Method used

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Embodiment 1

[0029] Example 1: refer to Figure 1 ~ Figure 2 , is a structural schematic diagram of Embodiment 1 of the present invention. This embodiment includes a cylinder body (4), a sealing device (3) and a return spring (8). The cylinder body (4) is circular, and the cylinder body (4) is filled with The damping medium (5) is provided with an annular piston (7) in the cylinder body (4), and the piston (7) is provided with a piston rod (2), and the piston rod (2) is a cylindrical body, The piston rod (2) is provided with a piston rod end plate 1 at the end of the piston rod (2) passing through and only from one end of the cylinder body (4). 4) There is a cylindrical body (6) in the central axis of the inner circle with a reduced diameter in the shape of a conical cone (6). The diameters are the same, and the return spring (8) is arranged on the other side of the piston rod (2) in the cylinder (4).

Embodiment 2

[0030] Example 2: refer to Figure 3-4 , a schematic structural diagram of Embodiment 2 of the present invention. Compared with Embodiment 1, the main difference of this embodiment is that the piston rod (2) is four rod-shaped bodies.

Embodiment 3

[0031] Example 3: refer to Figure 5 , the structural schematic diagram of Embodiment 3 of the present invention. Compared with Embodiment 2, the main difference of this embodiment is that the central columnar body (6) in the cylinder body (4) is small in the middle and gradually increases toward both ends. Large variable diameter.

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Abstract

The invention discloses a damping device. The damping device comprises a cylinder block (4), a sealing device (3) and a reset spring (8). A damping medium (5) is filled into the cylinder block (4). The damping device is characterized in that an annular piston (7) is arranged on the cylinder block (4), and a piston rod (2) is arranged on the piston (7) and penetrates out of only one end of the cylinder block (4). A reducing cylindrical body (6) is axially arranged at the center in the cylinder block (4). The minimum diameter of the cylindrical body (6) is smaller than the diameter of the inner circle of the piston (7). Compared with the prior art, the damping device can be suitable for limited application space, and especially for the situation that the position, in the travel direction, of a target object to be damped is limited.

Description

technical field [0001] The invention relates to a damping device. Background technique [0002] The resistance generated by the current damping device is generally balanced, but in many cases, what is needed is not balanced resistance, but variable resistance. [0003] Chinese patent CN200420073009.7 discloses a variable gap viscous damper, which includes a cylinder, a piston, a piston rod, a damping medium and a sealing device, the inner wall of the cylinder is designed with a variable cylinder diameter surface, and the cylinder The longitudinal section of the inner wall is a paraboloid or conical surface of rotation symmetrical about the middle of the cylinder; the longitudinal surface of the piston is a paraboloid or conical surface of rotation symmetrical about the middle of the piston; the inner diameter of the cylinder is the largest in the middle, and the inner diameter gradually decreases near the end ; The diameter of the piston is also the largest in the middle, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/00
Inventor 王旭安
Owner 王旭安
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