A disc spring valve system for a large damping shock absorber recovery valve

Abstract

The present invention provides a disc spring valve system for a large damping shock absorber restoring valve, comprising a piston, wherein a first gasket, a flow valve stopper, a second gasket, a flow valve spring, a flow valve plate and a third gasket are arranged in sequence from top to bottom above the piston, and a fourth gasket, a restoring throttle valve plate, a restoring valve plate, a restoring valve stopper, a restoring valve spring, a restoring valve gasket and a restoring valve nut are arranged in sequence from top to bottom below the piston, and a piston ring is installed in the annular groove at the upper end of the piston. The adjustable range of damping can be increased by the cooperation among the first gasket, the second gasket, the flow valve spring, the flow valve plate, the third gasket, the piston ring, the fourth gasket, the restoring throttle valve plate, the restoring valve plate, the restoring valve stopper, the restoring valve spring, the restoring valve gasket and the restoring valve nut, and the system is applicable to various heavy-load trucks, thereby effectively improving the shock absorbing function of the shock absorber, and at the same time, its durability and assemblability are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorbers, and in particular to a disc spring valve system for a large damping shock absorber restoring valve. Background Art

[0002] Shock absorbers are used to suppress the shock caused by the rebound of springs after absorbing shock and the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of frame and body vibrations to improve the driving smoothness of the car. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jumping.

[0003] At present, the spring used in the traditional passenger and freight vehicle shock absorber recovery valve system is a coil spring. After the endurance test, the damping force value decays greatly, which reduces the shock absorption function of the shock absorber. Therefore, a disc spring valve system for a large damping shock absorber recovery valve is proposed to solve the problem. Summary of the invention

[0004] The object of the present invention is to provide a disc spring valve system for a large damping shock absorber restoring valve, aiming to solve the problems raised by the background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a disc spring valve system for a large-damping shock absorber restoring valve, including a piston, wherein a first gasket, a flow valve limiter, a second gasket, a flow valve spring, a flow valve plate and a third gasket are arranged in sequence from top to bottom above the piston, and a fourth gasket, a restoring throttle valve plate, a restoring valve plate, a restoring valve limiter, a restoring valve spring, a restoring valve gasket and a restoring valve nut are arranged in sequence from top to bottom below the piston, and a piston ring is installed in the annular groove at the upper end of the piston.

[0006] Preferably, a connecting plate is provided in the middle of the circulation valve plate, and the connecting plate is inclined downward.

[0007] Preferably, the flow valve spring is provided with five circular grooves in an annular array.

[0008] Beneficial effects of the present invention:

[0009] The present invention can increase the adjustable range of damping through the cooperation among the first gasket, the second gasket, the circulation valve spring, the circulation valve plate, the third gasket, the piston ring, the fourth gasket, the restoring throttle valve plate, the restoring valve plate, the restoring valve limiter, the restoring valve spring, the restoring valve gasket and the restoring valve nut. It is suitable for various heavy-load trucks, thereby effectively improving the shock absorbing function of the shock absorber, and at the same time its durability and assemblability are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention;

[0011] Figure 2 Schematic diagram of the piston structure of the present invention

[0012] Figure 3 It is a schematic diagram of the decomposition of the structure of the present invention;

[0013] Figure 4 It is a schematic diagram of the spring structure of the flow valve of the present invention;

[0014] Figure 5 It is a schematic diagram of the flow valve plate structure of the present invention.

[0015] In the figure: 1. first gasket; 2. circulation valve limiter; 3. second gasket; 4. circulation valve spring; 5. circulation valve plate; 6. third gasket; 7. piston; 8. piston ring; 9. fourth gasket; 10. restoring throttle valve plate; 11. restoring valve plate; 12. restoring valve limiter; 13. restoring valve spring; 14. restoring valve gasket; 15. restoring valve nut; 16. connecting plate; 17. circular groove; 18. piston rod. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] The specific embodiment of the disc spring valve system for the high damping shock absorber restoring valve of the present invention is as follows: Figures 1 to 5As shown, it includes a piston 7, and the first gasket 1, the flow valve limiter 2, the second gasket 3, the flow valve spring 4, the flow valve plate 5 and the third gasket 6 are arranged in sequence from top to bottom above the piston 7, and the fourth gasket 9, the restoring throttle valve plate 10, the restoring valve plate 11, the restoring valve limiter 12, the restoring valve spring 13, the restoring valve gasket 14 and the restoring valve nut 15 are arranged in sequence from top to bottom below the piston 7. The ring groove at the upper end of the piston 7 is equipped with a piston ring 8, and the restoring valve nut 15 is tightened on the thread of the small end of the piston rod 18. It is tightened with a certain tightening torque and is firmly riveted through the rivet hole at the small end of the piston rod 18. The use of a series structure can increase the adjustable range of damping and is suitable for various heavy-load trucks, thereby effectively improving the shock absorption function of the shock absorber. A connecting plate 16 is provided in the middle of the circulation valve plate 5, and the connecting plate 16 is inclined downward. The circulation valve spring 4 is provided with five circular grooves 17 in a ring array. The cooperation between the connecting plate 16 on the circulation valve plate 5 and the circular grooves 17 on the circulation valve spring 4 can realize oil circulation compensation.

[0019] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A disc spring valve system for a high-damping shock absorber restoring valve, comprising a piston (7), characterized in that: The piston (7) is provided with a first gasket (1), a circulation valve stopper (2), a second gasket (3), a circulation valve spring (4), a circulation valve plate (5) and a third gasket (6) in order from top to bottom above the piston (7), and a fourth gasket (9), a restoring throttle valve plate (10), a restoring valve plate (11), a restoring valve stopper (12), a restoring valve spring (13), a restoring valve gasket (14) and a restoring valve nut (15) in order from top to bottom below the piston (7). A piston ring (8) is installed in the annular groove at the upper end; a connecting plate (16) is arranged in the middle of the circulation valve plate (5), and the connecting plate (16) is inclined downward; the circulation valve spring (4) is a spring plate structure; the circulation valve spring (4) is provided with five circular grooves (17) in an annular array; the cooperation between the connecting plate (16) on the circulation valve plate (5) and the circular grooves (17) on the circulation valve spring (4) can realize oil flow compensation; the restoring valve spring (13) is an annular spring plate.

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