CN100404908C

CN100404908C - Vehicle dampener

Info

Publication number: CN100404908C
Application number: CNB2006100537426A
Authority: CN
Inventors: 黄年兵; 冯战勤; 王志强; 赵肇丰
Original assignee: Ninghai Jianxin Rubber & Plastic Co Ltd
Current assignee: Jianxin Zhaos Technology Co Ltd
Priority date: 2006-09-30
Filing date: 2006-09-30
Publication date: 2008-07-23
Anticipated expiration: 2026-09-30
Also published as: CN1932330A

Abstract

The present invention discloses a shock absorber for vehicle. It has internal cylinder body, external cylinder body, elastic body and shock-resisting ring. It is characterized by that between the described elastic body and the described external cylinder body a closed space is formed; said closed space is separated into first gap portion and second gap portion by using first partition body and second partition body which are integrally-formed on the described elastic body, in the first gap portion and second gap portion the hydraulic oil is injected respectively. The described vehicle shock absorber also has damping ring; said damping ring is a ring body with notch, on said ring body is set a hydraulic oil channel connected with the described first gap portion and second gap portion.

Description

Vehicle shock absorber

Technical field

The present invention relates to a kind of shock-damping structure of vehicle, particularly a kind of vehicle shock absorber that connects vehicle frame and subframe.

Background technique

The vibration damper of existing vehicle, common structure can be opened clear 61-38341 in fact with reference to Chinese patent application 200410074600.9 disclosed " vibration-proof structure of vehicle " and Japan Patent.Open the disclosed shock-damping structure of clear 61-38341 includes inner barrel to Japan Patent in fact, is enclosed in the outer cylinder body of inner barrel periphery, and is clipped in the elastomer between inner barrel, the outer cylinder body.In the middle of elastomer possesses across a pair of hollow part of inner barrel face-off, be formed with from the inner core side of hollow part be the teat of convex shape towards the side-prominent cross section of outer cylinder body, and, the top of teat is against on the face on urceolus side of hollow part.Chinese patent application 200410074600.9 disclosed " vibration-proof structure of vehicle " then is to improve on the basis of aforementioned Japanese patent.Mainly be that the teat in two hollow parts is designed to dissymmetrical structure, make elastomer bear the elasticity coefficient at the position of load when vehicle quickens, the elasticity coefficient at position of bearing load than elastomer when the car brakeing is big.

Therefore the vibration damper of existing vehicle is as the damping, buffering element with elastomer (being generally rubber).Less deficiency of damping damping function excursion that can provide is provided for it, can not adapt to the damping requirement under the various driving conditions of vehicle well.If the Young's modulus of rubber is less, then it is out of shape when being subjected to impacting comparatively fast, in such cases, though the damping requirement that it can satisfy general driving condition has travelling comfort preferably, at the anxious state that quickens or bring to a halt of vehicle, the state of particularly bringing to a halt, then exist the distortion of rubber too fast, the problem that damping speed is slow excessively is difficult to effectively suppress the porpoise of vehicle.And if design the Young's modulus of rubber bigger, then for general driving condition, exist rubber deformation slow excessively, the problem that damping speed is too fast can produce harmful effect to the travelling comfort of vehicle equally.

Summary of the invention

Technical problem to be solved by this invention is the vehicle shock absorber that a kind of damping damping function excursion broad is provided at the prior art present situation, makes it can fully satisfy shock attenuation needs under the various driving conditions of vehicle.

The present invention solves the problems of the technologies described above the technological scheme that is adopted: this vehicle shock absorber, it has inner barrel, be enclosed in the outer cylinder body of inner barrel periphery, and be clipped in elastomer between inner barrel and the outer cylinder body, it is characterized in that described elastomer has the inner core that fits in described inner barrel periphery, fit in the urceolus of described outer cylinder body inboard, urceolus is made of last urceolus and the following urceolus that the middle part separates, one-body molded between last urceolus and the inner core have a last joint, one-body molded between following urceolus and the inner core have following joint, and therefore be formed with confined space between described elastomer and described outer cylinder body; This confined space cuts off body by first of one-body molded axial trend on described elastomer again and the second partition body is separated into first gap part and second gap part, and all is marked with hydraulic oil in first gap part and second gap part; Described vehicle shock absorber also has damping ring, and this damping ring is to have the ring that disconnects breach, and which is provided with the hydraulic oil channel that connects described first gap part and second gap part; Described first both sides that cut off body respectively are provided with recess, and described second cuts off the breach that then is provided with described first gap part of perforation and second gap part on the body; The two ends of described damping ring promptly are positioned at described first and cut off in the recess of body both sides, and its middle part then is positioned at described second and cuts off in the breach of body.

The top and bottom of described inner core are with retaining shake ring and retaining shake ring down respectively, and between the outer side wall of going up retaining shake ring and the described madial wall of going up urceolus and down retaining shake ring outer side wall and described under all have the gap between the madial wall of urceolus.The outer side wall of described damping ring is close to the madial wall of described outer cylinder body, and form circumferential groove on the outer side wall of damping ring, then be provided with respectively first through hole and second through hole with described first gap part and the second gap part conducting on the diapire of this groove, described hydraulic oil channel promptly is made of this groove, first through hole and second through hole.

Described elastomer is embedded with metal frame.

For improving the sealing between urceolus and the outer cylinder body, all form and the adaptive annular seal ring of described outer cylinder body madial wall on the outer side wall of the described upward upper and lower urceolus of outer side wall of urceolus.

Described going up on retaining shake ring and the following retaining shake ring is equipped with locating notch, then forms the projection adaptive with locating notch on the described elastomer.

Form postioning abutment corresponding to described second position that cuts off the both sides of the breach on the body on the described damping ring.

There are following characteristics in the present invention:

1, the present invention has adopted elastomer (being generally rubber), hydraulic pressure combination shock-damping structure, when vibration damper is subjected to impacting, rubber produces distortion because of being subjected to external force, direct absorption portion impact energy, simultaneously, owing in the product of the present invention the hydraulic damping loop is housed, in rubber deformation, the liquid in the rubber is pressed towards another side by damping circuit, so in the distortion damping, liquid in the vibration damper produces damping shock absorption by oil hydraulic circuit, thereby has improved the damping, buffering ability.According to the hydrodynamics principle, when by runner, because the effect that its viscosity and turbulent particle mix, the convection current movable property is given birth to resistance; The size of liquid flowing resistance is relevant with the shape of fluid viscosity, the pipeline of flowing through, pressure, turbulence level etc., viscosity increases along with the increase of pressure, flow resistance is big more, flow velocity is slow more, the energy that consumes is big more, and damping and amortization is big more, therefore, the damping damping function excursion broad of vibration damper of the present invention has improved cushioning ability.

2, retaining shake ring is set in the vibration damper of the present invention.This is to consider under the automobile urgent brake car situation, the impact force that vibration damper is subjected to is very big, if the distortion of rubber is too fast, then damping speed is excessively slow, be difficult to adapt to the automobile shock requirement, simultaneously, the impact force that liquid is subjected to, liquid moment pressure and flow velocity will be very fast, cause the liquid sealing structure distortion, and under high fluid pressure, produce seepage or seal structure damage situation.Existence by retaining shake ring; when rubber structure is deformed to a certain degree; after touching retaining shake ring; make rubber structure based on deflection deformation; become based on the compressive strain of rubber own; having improved the mutual loss angle of product integral rigidity greatly reduces; accelerated the absorption of impact energy; limited excessive amplitude of vibration; protected simultaneously the hydraulic shock-absorption system again; avoided liquid to produce seal failure owing to pressurized is excessive, prevented from simultaneously to flow through the pod apertures excessive velocities and produce vaporizing liquid (throttling air pocket) and the noise that forms and vibration and the hydraulic element face table destruction of deteriorating.Thereby make product can adapt to general impact damping requirement, can adapt to Emergency braking, collision again.

In a word, vibration damper of the present invention has at impact kinetic energy hour, and integral rigidity is little, when impact kinetic energy is big, and the characteristics that integral rigidity increases.So impact hour, mild shock-absorbing is impacted when big, and damping capaicty increases.Both improved the stationarity of car under low impact condition, and increased the damping damping capacity of HI high impact situation simultaneously again, can adapt to slightly vibrations in the car running process, general braking, suddenly stop, bump etc., respectively impacted the damping requirement.

Description of drawings

Fig. 1 is the schematic perspective view (not installing and using state) of the embodiment of the invention;

Fig. 2 is the solid assembling schematic representation of the embodiment of the invention;

Fig. 3 is the sectional structure schematic representation (not installing and using state) of the embodiment of the invention;

Fig. 4 is the A-A sectional view of Fig. 3;

Fig. 5 is the sectional structure schematic representation (installing and using state) of the embodiment of the invention;

Fig. 6 is an elastomeric stereogram in the embodiment of the invention;

Fig. 7 is for being embedded in the stereogram of the metal frame in the elastomer in the embodiment of the invention;

Fig. 8 is the stereogram of another angle of elastomer among Fig. 6;

Fig. 9 is the stereogram of another angle of metal frame among Fig. 7.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing:

As Fig. 1～Figure 10 shows that preferred embodiment of the present invention.As Fig. 1～shown in Figure 10, it has the inner barrel 1 of metal material the present embodiment vehicle shock absorber, be enclosed in the outer cylinder body 2 of the metal material of inner barrel 1 periphery, and be clipped in the elastomer 3 of the rubber material between inner barrel 1 and the outer cylinder body 2, elastomer 3 has the inner core 31 that fits in inner barrel 1 periphery, fit in the urceolus of outer cylinder body 2 inboards, urceolus is made of last urceolus 32 and the following urceolus 33 that the middle part separates, one-body molded between last urceolus 32 and the inner core 31 have a last joint 34, one-body molded between following urceolus 33 and the inner core 31 have following joint 35, and therefore be formed with confined space between elastomer 3 and outer cylinder body 2; This confined space cuts off body 36 and second by first of one-body molded axial trend on elastomer 3 again and cuts off body 37 and be separated into first gap part 4 and second gap part 5, and all is marked with hydraulic oil in first gap part 4 and second gap part 5 in (among the figure for illustrating).Vehicle shock absorber also has the damping ring of being made by the flexible rigid plastics of tool 6, and this damping ring 6 is to have the ring that disconnects breach, and which is provided with the hydraulic oil channel that connects described first gap part 4 and second gap part 5; Described first both sides that cut off body 36 respectively are provided with recess 361, and described second cuts off the breach 371 that then is provided with described first gap part 4 of perforation and second gap part 5 on the body 37; The two ends of described damping ring 6 promptly are positioned at described first and cut off in the recess 361 of body 36 both sides, and its middle part then is positioned at described second and cuts off in the breach 371 of body 37.

The top and bottom of described inner core 31 are with respectively by what the flexible rigid plastics of tool was made and go up retaining shake ring 7 and retaining shake ring 8 down, and between the outer side wall of going up retaining shake ring 7 and the described madial wall of going up urceolus 32 and down the retaining shake encircles between the madial wall of 8 outer side wall and following urceolus 33 and all has the gap.

The outer side wall of described damping ring 6 is close to the madial wall of described outer cylinder body 2, and form circumferential groove 61 on the outer side wall of damping ring 6, then be provided with respectively first through hole 62 and second through hole 63 with described

first gap part

4 and 5 conductings of second gap part on the diapire of this groove 61, described hydraulic oil channel promptly is made of this groove 61, first through hole 62 and second through hole 63.

Described elastomer 3 is embedded with metal frame 9.

All form two circles and the adaptive annular seal rings 38 of described outer cylinder body 2 madial walls on the outer side wall of the described upward upper and lower urceolus 33 of outer side wall of urceolus 32.

Describedly go up retaining shake ring 7 and be equipped with locating notch 10 on the retaining shake ring 8 down, then form the projection 39 adaptive on the described elastomer 3 with locating notch 10.

Form postioning abutment 64 corresponding to described second position that cuts off the both sides of the breach 371 on the body 37 on the described damping ring 6.

Claims

1. vehicle shock absorber, its have inner barrel, be enclosed in the outer cylinder body of inner barrel periphery and be clipped in inner barrel and outer cylinder body between elastomer, it is characterized in that described elastomer has the inner core that fits in described inner barrel periphery, the urceolus that fits in described outer cylinder body inboard, urceolus is made of last urceolus and the following urceolus that the middle part separates, one-body molded between last urceolus and the inner core have a last joint, one-body molded between following urceolus and the inner core have following joint, and therefore be formed with confined space between described elastomer and described outer cylinder body; This confined space cuts off body by first of one-body molded axial trend on described elastomer again and the second partition body is separated into first gap part and second gap part, and all is marked with hydraulic oil in first gap part and second gap part; Described vehicle shock absorber also has damping ring, and this damping ring is to have the ring that disconnects breach, and which is provided with the hydraulic oil channel that connects described first gap part and second gap part; Described first both sides that cut off body respectively are provided with recess, and described second cuts off the breach that then is provided with described first gap part of perforation and second gap part on the body; The two ends of described damping ring promptly are positioned at described first and cut off in the recess of body both sides, and its middle part then is positioned at described second and cuts off in the breach of body.

2. vehicle shock absorber according to claim 1, the top and bottom that it is characterized in that described inner core are with retaining shake ring and retaining shake ring down respectively, and between the outer side wall of going up retaining shake ring and the described madial wall of going up urceolus and down retaining shake ring outer side wall and described under all have the gap between the madial wall of urceolus.

3. vehicle shock absorber according to claim 1 and 2, it is characterized in that the outer side wall of described damping ring is close to the madial wall of described outer cylinder body, and form circumferential groove on the outer side wall of damping ring, then be provided with respectively first through hole and second through hole with described first gap part and the second gap part conducting on the diapire of this groove, described hydraulic oil channel promptly is made of this groove, first through hole and second through hole.

4. vehicle shock absorber according to claim 1 and 2 is characterized in that described elastomer is embedded with metal frame.

5. vehicle shock absorber according to claim 1 and 2 is characterized in that all forming and the adaptive annular seal ring of described outer cylinder body madial wall on the outer side wall of the described upper and lower urceolus of outer side wall of going up urceolus.

6. vehicle shock absorber according to claim 2 is characterized in that described going up on retaining shake ring and the following retaining shake ring is equipped with locating notch, then forms the projection adaptive with locating notch on the described elastomer.

7. vehicle shock absorber according to claim 3 is characterized in that forming postioning abutment corresponding to described second position that cuts off the both sides of the breach on the body on the described damping ring.