CN203770516U - High-speed dual-damping shock absorber - Google Patents

Abstract

The utility model discloses a high-speed dual-damping shock absorber comprising a piston rod assembly (1), a seal member (2), a guider (3), a restoring valve assembly (6), a working cylinder (7), a compression valve assembly (8) and a reservoir cylinder assembly (9). A high-speed damper (5) is arranged at the upper end of the restoring valve assembly (6), and a matched high-speed damper sleeve is arranged at the lower end of the guider (3). The high-speed damper and the high-speed damper sleeve are added on the basis of a traditional shock absorber and produce damping during high-speed drawing in a matching manner to protect a shock absorber valve system. The damping force is controlled through the compression valve assembly during compression; during drawing, in the low speed, the damping force is controlled through the restoring valve assembly, in the high speed, the high-speed damper and the restoring valve assembly are operated together to produce dual damping force, the shock absorbing effect is achieved while the valve system is protected, and the service life of the shock absorber is prolonged.

Description

At a high speed two damping shock absorbers

Technical field

The utility model relates to a kind of Vehicular damper, especially relate to a kind of in the time stretching the vibration damper of the two damping forces of realization of High Speed.

Background technique

The fast development of society, being heavily stuck in transport service has irreplaceable effect, and because its carrying capacity is large, its suspension system requires also higher to the damping force of vibration damper.In the time that road conditions are bad, vibration damper is in the time being stretched to maximum position, and because damping force is large, impact force is also very large, and valve system will be affected like this, decays too fast, directly causes reduce working life.Tradition vibration damper is applied in above heavy truck, and in the time working in stretching shape, because piston is assembled together with resetting valve system, oil pressure directly acts on resetting valve system, and vibration damping valve block is easy to quick fatigue; In the time that pit appears in road surface, stretching is worked, and damping force is along with draw speed is accelerated and acutely increases, and the impact force of tackling mutually valve system also can be larger, affects working life; Even, in the time of limit road conditions, can damage vibration damper, cause defective shock absorber.

Summary of the invention

The purpose of this utility model is to provide a kind ofly can make in the time that road conditions are bad that vibration damper normally uses, the two damping shock absorbers of the high speed of long service life.

The at a high speed two damping shock absorbers of the utility model mainly comprise piston-rod assembly, Sealing, guider, rebuilt valve assembly, clutch release slave cylinder, compression valve assembly, oil storage cylinder assembly, be provided with high-speed damping device in rebuilt valve assembly upper end, guider lower end is provided with it supporting high-speed damping cover.

The utility model increases high-speed damping device and high-speed damping cover on traditional vibration damper basis, produces damping when the two is engaged in high-speed stretch, protection shock absorber valve system.When compression, damping force is by compression valve assembly control, and drawing process, in the time of low speed; damping force is by the control of rebuilt valve assembly, and in the time of high speed, high-speed damping device and rebuilt valve assembly are worked simultaneously; produce Double damping power, not only play damping effect but also protected valve system, extended the working life of vibration damper.

Brief description of the drawings

Fig. 1 is the structural representation of the at a high speed two damping shock absorbers of the utility model.

Embodiment

As shown in Figure 1; the at a high speed two damping shock absorbers of the utility model; mainly comprise piston-rod assembly 1, Sealing 2, guider 3, rebuilt valve assembly 6, clutch release slave cylinder 7, compression valve assembly 8; rebuilt valve assembly 6 is assembled together with piston-rod assembly 1; compression valve assembly 8 is positioned at the lower end of clutch release slave cylinder 7; in rebuilt valve assembly 6 upper ends, high-speed damping device 5 is set; guider 3 lower ends arrange supporting with it high-speed damping cover 4; high-speed damping device 5 and high-speed damping cover 4 are used in conjunction with; only in the time of high-speed stretch, produce damping, protection shock absorber valve system.When compression, high-speed damping device is not worked, damping force is by compression valve assembly control, drawing process, when low speed, high-speed damping device is not worked, damping force is by the control of rebuilt valve assembly, and in the time of high speed, high-speed damping device and rebuilt valve assembly are worked simultaneously, produce Double damping power, not only play damping effect but also protected valve system; No matter be that the damping force of vibration damper and suspension matching system is unaffected in low speed or high speed.Certainly, it is a part that high-speed damping cover 4 also can fuse with guider 3, and all this features that meets all belong to the protection domain of this patent.

When production, each parts have assembled after sealing, stretch and compress, and feel sees whether whether vibration damper can normally work, have catching phenomenon; And utilize dynamometer machine, again verify whether damping force meets the requirements.If found not in claimed range, according to showing that merit result adjusts respective valve system; In the time that recovery damping force can not meet the demands, can adjust rebuilt valve assembly 6, in the time that compression damping power can not meet the demands, can adjust compression valve assembly 8.

When the at a high speed two damping shock absorber work of the utility model, piston-rod assembly 1 loads backward guider 3 one side shiftings of force-extension, high-speed damping device 5 and rebuilt valve assembly 6 synchronizing movings, shock absorber oil in clutch release slave cylinder 7 is under pressure, a part from upper end through guider 3 flows into oil storage cylinder assembly 9 in, a part of flow into clutch release slave cylinder 7 lower ends by rebuilt valve assembly 6; In the time of high speed, high-speed damping device 5 is drawn to stretch while contact with high-speed damping cover 4, can produce large damping force moment draw speed is lowered, avoid powerful impact force to directly act on rebuilt valve assembly 6, its process high speed damper 5 and the rebuilt valve assembly 6 generation damping force of simultaneously working.When piston-rod assembly 1 loads external force to compression valve assembly 8 one side shiftings, the shock absorber oil in clutch release slave cylinder 7 is under pressure, a part from upper end through rebuilt valve assembly 6 flow into clutch release slave cylinder 7 upper ends, a part flow in oil storage cylinder assembly 9 by compression valve assembly 8.So far,, after a work cycle finishes, carry out next one circulation.

Claims (1)

1. the two damping shock absorbers of high speed, mainly comprise piston-rod assembly (1), Sealing (2), guider (3), rebuilt valve assembly (6), clutch release slave cylinder (7), compression valve assembly (8), oil storage cylinder assembly (9), it is characterized in that: be provided with high-speed damping device (5) in rebuilt valve assembly (6) upper end, guider (3) lower end is provided with it supporting high-speed damping cover (4).