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Double-oil chamber rigidity-adjustable hydro-pneumatic spring

An oil-gas spring, adjustable technology, applied in the direction of spring, spring/shock absorber, gas-liquid shock absorber, etc., can solve the problems of non-adjustable change in stiffness and reduce the driving comfort of the vehicle, and achieve compact structure and improve driving comfort. sex, small footprint effect

Pending Publication Date: 2018-11-09
SHANDONG WANTONG HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stiffness of the oil-pneumatic spring cannot be adjusted and changed during use. When the vehicle is running with no load or full load, the vehicle has different requirements for the stiffness of the oil-pneumatic spring, which reduces the driving comfort of the vehicle.

Method used

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  • Double-oil chamber rigidity-adjustable hydro-pneumatic spring
  • Double-oil chamber rigidity-adjustable hydro-pneumatic spring
  • Double-oil chamber rigidity-adjustable hydro-pneumatic spring

Examples

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Embodiment Construction

[0023] Such as Figure 1 to Figure 4 As shown, this embodiment provides an oil-pneumatic spring with adjustable stiffness of double oil chambers. The oil-pneumatic spring with adjustable stiffness of double oil chambers includes a cylinder body 1 and a hollow piston rod 2. The hollow piston rod 2 is nested in the inner cavity of the cylinder body 1. The hollow piston rod 2 can move back and forth along the axial direction of the cylinder body 1 . The left end of the cylinder body 1 is provided with an assembly ear 9 , and the right end of the hollow piston rod 2 is provided with an assembly ear 9 . The oil-pneumatic spring of this embodiment can be assembled on the vehicle through the assembly ears 9 at both ends.

[0024] The end cover 3 is provided with external threads, and the right end of the cylinder body 1 is provided with internal threads. The hollow piston rod 2 is arranged in the assembly hole of the end cover 3 . A sealing ring 7 is arranged between the end cover...

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Abstract

The invention discloses a double-oil chamber rigidity-adjustable hydro-pneumatic spring, and belongs to the technical field of hydro-pneumatic springs. The double-oil chamber rigidity-adjustable hydro-pneumatic spring comprises a cylinder body, hollow piston rods, end caps and the like. The hollow piston rods are nested in an inner cavity of the cylinder body; the hollow piston rods can move in the axial direction of the cylinder body in a reciprocating mode; and through an adjusting oil nozzle and an adjusting oil channel, hydraulic oil is filled in or discharged out of an adjusting oil cavity, so that an adjusting piston can be in a certain position to change the size of an adjusting air cavity to enable the hydro-pneumatic spring to be at a set rigidity. The double-oil chamber rigidity-adjustable hydro-pneumatic spring has the beneficial effects that the double-oil chamber rigidity-adjustable hydro-pneumatic spring is assembled to a vehicle, based on driving statuses of non-load orfull-load of the vehicle, the hydraulic oil can be filled in or discharged out through the adjusting oil nozzle to adjust the rigidity of the hydro-pneumatic spring and driving comfort of the vehiclecan be greatly improved.

Description

technical field [0001] The invention relates to the technical field of oil-pneumatic springs, in particular to an oil-pneumatic spring with adjustable rigidity of double oil chambers. Background technique [0002] Oil-pneumatic springs have excellent damping effects, and they have been widely used in the suspension damping systems of heavy trucks and engineering vehicles. The floating piston of the oil-gas spring isolates the oil chamber of the oil-gas spring from the air chamber. The oil chamber stores hydraulic oil, the air chamber stores nitrogen, and the hydraulic oil in the oil chamber compresses the nitrogen in the air chamber to realize the function of the elastic element. However, the stiffness of the oil-pneumatic spring cannot be adjusted and changed during use. When the vehicle is running with no load or full load, the vehicle has different requirements for the stiffness of the oil-pneumatic spring, which reduces the driving comfort of the vehicle. Contents of t...

Claims

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Application Information

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IPC IPC(8): F16F9/06F16F9/32
CPCF16F9/063F16F9/067F16F9/3214F16F9/3221F16F9/3235
Inventor 王刚于善利毛波
Owner SHANDONG WANTONG HYDRAULIC