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Vibration damping device of inverted structure

一种振动衰减、构造的技术，应用在减振器、减震器、液体减振器等方向，能够解决油易热膨胀、气体室反弹力上升、车辆高度变化等问题，达到低摩擦性的效果

Active Publication Date: 2020-01-17
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the vibration damping device with an inverted structure is limited to a single-tube type, so the rebound force of the gas chamber is increased compared with a double-tube type vibration damping device
Due to such an increase in rebound force, the oil inside the vibration damping device with an inverted structure tends to thermally expand, and when used as a shock absorber for a vehicle, for example, the height of the vehicle tends to change due to temperature.

Method used

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  • Vibration damping device of inverted structure
  • Vibration damping device of inverted structure
  • Vibration damping device of inverted structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] For the vibration attenuation device of the inverted structure of Example 1, a sleeve containing 85% by mass of polytetrafluoroethylene and 15% by mass of perfluoroalkoxyalkane (PFA) was used as a sleeve, and it was used as a lubricating oil in an existing damper. 1000ppm molybdenum dithiocarbamate (MoDTC) is added to the shock oil.

[0105] The sleeve is formed in a substantially cylindrical shape with an inner diameter of 40 mm, an outer diameter of 44 mm, and a height of 20 mm. In addition, the distance between the sleeves of the vibration damping device was 115 mm.

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Abstract

The invention provides a vibration damping device of an inverted structure having a lower friction property. A low-friction lubricant and a low-friction sleeve are provided between the working cylinder and the outer cylinder. The vibration damping device of an inverted structure includes a cylinder, a rod capable of protruding and retracting in the cylinder, an outer cylinder coupled to the rod and inserted over the outer periphery of the cylinder, and a bush slidably inserted between the outer cylinder and the cylinder. A gap between the outer cylinder and the cylinder is filled with lubricating oil. The bush contains polytetrafluoroethylene and perfluoro alkoxy alkane. The lubricating oil contains an organic molybdenum additive.

Description

technical field [0001] The invention relates to a vibration damping device with an inverted structure. Background technique [0002] Conventional vibration damping devices (damping devices) having an upright structure have a problem that lateral force applied to the vibration damping device is received by a rod serving as a piston in the cylinder, and the rod is easily deformed. However, if the diameter of the rod is increased to increase the rigidity of the rod, the frictional force generated in the vibration damping device will increase, and the reaction force of the rod will also increase. Accordingly, when a vibration damping device having a large rod diameter is used as a shock absorber of a vehicle, for example, the ride quality of the vehicle or the like deteriorates due to an increase in the top of the shock absorber. Therefore, it is difficult to achieve both damping and rigidity of the vibration damping device having an upright structure. [0003] In order to dea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/19F16F9/32
CPCF16F9/19F16F9/3278F16F9/18F16F9/366F16F2230/04F16F9/3235F16F9/064F16F2224/02F16F2232/08F16F2234/02F16F2222/12F16F2224/04
Inventor 寒川直辉小森健太郎藤元岳洋
Owner HONDA MOTOR CO LTD
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