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Mixed communication type oil-gas shock attenuation device

A shock absorber and hybrid communication technology, which is applied in the direction of shock absorbers, gas-hydraulic shock absorbers, spring/shock absorbers, etc., can solve the problem of not being able to improve the ride comfort of the vehicle and the high sealing performance of the accumulator , High production cost of oil and gas damper, to achieve the effect of improving vertical vibration performance, saving installation space, and compact structure

Inactive Publication Date: 2016-03-30
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the traditional oil-gas damper adopts the cylinder-piston system, an external accumulator needs to be installed to compensate and buffer the hydraulic oil when the suspension moves up and down. Because it is arranged outside, its protection performance is poor. At the same time, for the storage The airtight performance of the energy device is required to be high, resulting in a high production cost of the oil-gas damper
In addition, a single oil-air damper used in engineering vehicles cannot improve the ride comfort, driving stability and passability of the vehicle.

Method used

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  • Mixed communication type oil-gas shock attenuation device
  • Mixed communication type oil-gas shock attenuation device
  • Mixed communication type oil-gas shock attenuation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 2 with Figure 4 As shown, the first piston 30 of the first oil-pneumatic damping device 1 is provided with a second damping hole 503 for communicating with the upper chamber 101 of the first hydraulic cylinder chamber and the lower chamber 102 of the first hydraulic cylinder chamber. Similarly, the second piston 30' of the second oil-gas damping device 2 is provided with a fourth damping hole 503' for communicating with the upper chamber 101' of the second hydraulic cylinder chamber and the lower chamber 102' of the second hydraulic cylinder chamber.

[0054] Preferably, the first damping hole 501, the first check valve 502, the third damping hole 501' and the third check valve 502' are all one.

[0055] Preferably, both the second damping hole 503 and the fourth damping hole 503' are two.

[0056] Concrete working principle of the present invention is as follows:

[0057] When the cylinder body of the first cylinder chamber 20 of the first oil-pneum...

Embodiment 2

[0069] Such as Figure 5 with Image 6As shown, the first piston 30 of the first oil-pneumatic damping device 1 is provided with a second one-way valve 504 for communicating with the upper chamber 101 of the first hydraulic cylinder chamber and the lower chamber 102 of the first hydraulic cylinder chamber. Similarly, the second piston 30' of the second oil-gas damping device 2 is provided with a fourth one-way valve 504' for connecting the upper chamber 101' of the second hydraulic cylinder chamber with the lower chamber 102' of the second hydraulic cylinder chamber. .

[0070] Preferably, the first damping hole 501, the first check valve 502, the third damping hole 501' and the third check valve 502' are all one.

[0071] Preferably, both the second one-way valve 504 and the fourth one-way valve 504' are two.

[0072] In this embodiment, the hybrid connected oil-gas damping device of the present invention improves the disadvantages of the existing traditional oil-gas dampe...

Embodiment 3

[0074] Such as Figure 7-8 As shown, an inert gas is installed in the upper chamber 101 of the first hydraulic cylinder chamber of the first oil-gas damping device 1, and the inert gas is high-pressure nitrogen; the second hydraulic cylinder chamber of the second oil-gas damper device 2 An inert gas is installed in the upper chamber 101', and the inert gas is high-pressure nitrogen. Similarly, the upper chamber 101 of the first hydraulic cylinder chamber of the first oil-pneumatic damping device 1 and the upper chamber 101' of the second hydraulic cylinder chamber of the second oil-pneumatic damping device 2 are both sealed cavities, and the first An upper chamber 101 of a hydraulic cylinder chamber is not connected to the lower chamber 102 of the first hydraulic cylinder chamber, and the upper chamber 101' of the second hydraulic cylinder chamber is not communicated to the lower chamber 102' of the second hydraulic cylinder chamber.

[0075] In this example, if Figure 7-8 ...

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Abstract

The invention provides a mixed communication type oil-gas shock attenuation device which comprises a first oil-gas damping device and a second oil-gas damping device which have the same structure, wherein the first oil-gas damping device is composed of a first hydraulic oil cylinder chamber for charging hydraulic oil and a first cylinder chamber for charging inert gas; the first cylinder chamber can be installed on the first hydraulic oil cylinder chamber in a reciprocating manner; and in addition, the lower end of the first cylinder chamber is fixedly connected with a first piston of the first hydraulic oil cylinder chamber. The mixed communication type oil-gas shock attenuation device has a compacter structure, is lower in production cost, can improve the vertical vibration performance of vehicle driving and the riding comfort of a vehicle, also lowers the inherent frequency of a vehicle body, is convenient in regulating the posture of the vehicle, is beneficial to acquiring better anti-roll stiffness and anti-pitching stiffness by a engineering vehicle and thus improving the ride comfort and the driving stability of the vehicle.

Description

technical field [0001] The invention relates to the technical field of shock absorption of engineering machinery, in particular to a hybrid communication oil-gas damping device in which a first oil-gas damping device and a second oil-gas damper are combined to combine hydraulic oil and inert gas. Background technique [0002] The research on oil-pneumatic suspension technology began in the late 1960s. The oil-pneumatic damping device invented by D.C.Karnopp was first applied in racing cars and cars. In the late 1970s, an oil-pneumatic suspension system integrating shock absorbers and support springs appeared. [0003] The oil and gas damper combines oil and gas, uses the compressibility of the gas as the elastic element of the suspension, uses the flow resistance of the hydraulic oil to achieve vibration reduction, and uses the incompressibility of the hydraulic oil to achieve more accurate motion and force transmission , using the ease of control of hydraulic oil flow to a...

Claims

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Application Information

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IPC IPC(8): F16F9/06
CPCF16F9/063
Inventor 杨帆萨巴斯·如克甲杨磊瞿迪水颜奇佳
Owner HUAQIAO UNIVERSITY
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