一种减振器和行驶设备

Abstract

本申请公开了一种减振器和行驶设备，属于减振器领域。减振器包括蓄能器、和阻尼器。其中阻尼器中具有磁流变液控制组件和伸缩机构。活塞设置阻尼孔以使阻尼器的缸体内由活塞隔出的有杆腔和无杆腔连通，且无杆腔与蓄能器连通形成磁流变液的流通路径。该减振器可以有效过滤震动，提供足够的支撑力。

Claims

1. A damper characterized by, include: An accumulator has a first cylinder body, in which a metal bellows is disposed, and the cylinder body is divided by the metal bellows into a non-connected outer cavity and an inner cavity provided by the metal bellows. And, a damper having a second cylinder, a telescopic mechanism and a magnetorheological fluid control assembly, the telescopic mechanism having a telescopic rod and a piston inside the second rod, one end of the telescopic rod being connected to the piston and the other end extending out of the second rod; The piston is equipped with a damping orifice to connect the rod chamber and the rodless chamber separated by the piston in the second cylinder. The rodless chamber is also connected to the outer cavity of the accumulator tube. The outer cavity, the rodless chamber, the damping orifice, and the end hole are connected in sequence to form the flow path of the magnetorheological fluid.

2. The damper of claim 1, wherein The accumulator is placed inside the second cylinder. Alternatively, the accumulator can be disposed on the outer wall of the second cylinder body; Alternatively, the magnetorheological fluid control assembly includes an excitation coil and a wire, with the excitation coil disposed in the piston and the wire routed inside the telescopic rod and one end electrically connected to the excitation coil.

3. The damper of claim 1, wherein The accumulator and damper are fixed together to the valve seat, and the outer cavity of the pipe is connected to the rodless cavity through the flow channel inside the valve seat.

4. The vibration damper according to claim 3, characterized in that, The flow channel has a drain outlet, and the damper further includes a sealing cap configured to close the drain outlet, the sealing cap being detachably connected to the drain outlet.

5. The damper of claim 1, wherein The accumulator is connected to the damper via a pipe, and the outer cavity of the pipe is connected to the rodless cavity via the pipe. Alternatively, a magnetorheological fluid may be disposed within the flow path; Alternatively, the inner cavity of the tube may be pre-pressurized with gas.

6. The damper of claim 1, wherein The first cylinder block includes elements that collectively define the cylinder cavity: A columnar shell extending from the first end to the second end; A rear flange with an inflation port sealed by an air cap is connected to the first end, and one end of a metal bellows is connected to the rear flange, with the inflation port communicating with the inner cavity of the pipe. Additionally, a front flange with a fluid passage hole is provided and connected to the second end. The fluid passage hole communicates with the outer cavity of the pipe and also with the rodless cavity of the second cylinder.

7. The damper of claim 6, wherein The energy accumulator also includes a front end plate and a guide ring sleeved on the front end plate; The front end plate is located inside the cylinder cavity and is sealed and connected to the other end of the metal bellows. The guide ring is fitted with the inner wall of the housing with a clearance to suppress the radial vibration of the metal bellows.

8. The damper of claim 7, wherein The guide ring has a flow guide port; And / or, the guide ring has a cutout that allows the guide ring to expand and contract.

9. A damper according to claim 7 or 8, characterised in that The accumulator also includes a buffer assembly that provides cushioning between the front end plate and the front flange; The buffer assembly includes a buffer ring and a retaining ring for securing the buffer to the front flange.

10. A traveling apparatus comprising a shock absorber, characterized by The vibration damper is provided by any one of claims 1-9.

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