CN203500359U - Cushion type shock absorber assembly - Google Patents
Cushion type shock absorber assembly Download PDFInfo
- Publication number
- CN203500359U CN203500359U CN201320597790.7U CN201320597790U CN203500359U CN 203500359 U CN203500359 U CN 203500359U CN 201320597790 U CN201320597790 U CN 201320597790U CN 203500359 U CN203500359 U CN 203500359U
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- Prior art keywords
- damper member
- shock absorber
- type shock
- elastomeric damper
- absorber assembly
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Abstract
The utility model provides a cushion type shock absorber assembly. The cushion type shock absorber assembly comprises a damper cylinder and a piston assembly, a piston rod which is sleeved with the damper cylinder and the piston assembly is provided with a damping spring, an elastic damping piece is arranged between the damping spring and the piston rod and is sleeved with the piston rod, and the elastic damping piece is isolated from the damping spring. According to the cushion type shock absorber assembly, the elastic damping piece is prevented from being in contact with the damping spring when the elastic damping piece contracts and expands due to impact, the shear failure, caused by the damping spring, of the elastic damping piece is effectively avoided, the service life of the elastic damping piece is guaranteed, the rigidity of the elastic damping piece can be increased gradually when the elastic damping piece is impacted, smooth transition is achieved, and therefore the impact is eliminated; the deformation quantity of the elastic damping piece can be effectively controlled, the maximum operating stroke of the cushion type shock absorber assembly is guaranteed, failures such as interference are avoided, the shock resistance and maximum load can be improved, and the safety performance and the reliability are improved; the cushion type shock absorber assembly is simple in structure, convenient to manufacture, and low in cost.
Description
Technical field
The utility model relates to a kind of motor vehicle component, relates in particular to a kind of buffering type shock absorber assembly.
Background technique
Buffering type shock absorber assembly is the critical piece of motor vehicle, for improving the driving comfort of vehicle, and guarantees to guarantee the performance and used life of car load under comparatively severe running environment.The buffering type shock absorber assembly generally adopting generally comprises damper cylinder and piston rod, at damper cylinder and piston rod overcoat, there is damping spring, one end of piston rod is provided with piston assembly and is deep in damper cylinder, the other end of piston rod (end of travel of buffering type shock absorber assembly) is installed the elastomeric damper member that external diameter is less than damping spring internal diameter, in order at large load or run into while impacting and increase rigidity, strengthen the travelling comfort of vehicle simultaneously; Because interior wall construction after the compressed distortion of damping spring is irregular structure, the largest deformation amount of elastomeric damper member can not be effectively controlled, thereby the maximum functional stroke of damping can not be guaranteed, easily cause the hidden danger such as interference; And when vehicle is subject to large impact when driving, elastomeric damper member deformation quantity increases (being that elastomeric damper member is subject to impacting generation compression-expansion), even be greater than the internal diameter of spring, when elastomeric damper member deformation, damping spring is compressed, thereby make damping spring cause shear fracture to elastomeric damper member, the performance of elastomeric damper member is damaged, has a strong impact on the travelling comfort of driving; The number of times that is sheared destruction along with elastomeric damper member increases, the extent of damage aggravation of elastomeric damper member, thereby elastomeric damper member occurs to come off, when vehicle is heavily loaded or be subject to large impact, damper cylinder will be arranged at piston rod and be provided with damping spring base and produce rigid impact, and then cause buffering type shock absorber assembly generation leakage of oil to damage, even may cause security incident.
Therefore, need to improve existing buffering type shock absorber assembly, can make elastomeric damper member be subject to impacting while there is compression-expansion, can not contact with damping spring, effectively avoid damping spring to cause shear fracture to elastomeric damper member, guarantee the working life of elastomeric damper member, and can make elastomeric damper member when being subject to impacting, increase gradually rigidity, excessively mild, and then eliminate and impact; Can effectively control the deformation quantity of elastomeric damper member, guarantee the maximum functional stroke of buffering type shock absorber assembly, the fault such as avoid interfering, can when equal maximum functional stroke, greatly increase its maximum load capacity value, increase impact resistance and bearing capacity, increase safety reliability.
Model utility content
In view of this, a kind of buffering type shock absorber assembly that the utility model provides, can make elastomeric damper member be subject to impacting while there is compression-expansion, can not contact with damping spring, effectively avoid damping spring to cause shear fracture to elastomeric damper member, guarantee the working life of elastomeric damper member, and can make elastomeric damper member when being subject to impacting, increase gradually rigidity, excessively mild, and then eliminate and impact; Can effectively control the deformation quantity of elastomeric damper member, guarantee the maximum functional stroke of buffering type shock absorber assembly, the fault such as avoid interfering, can when equal maximum functional stroke, greatly increase its maximum load capacity value, increase impact resistance and bearing capacity, increase safety reliability.
A kind of buffering type shock absorber assembly that the utility model provides, at least comprise damper cylinder and piston assembly, the piston rod that is coated at damper cylinder and piston assembly is provided with damping spring, between damping spring and piston rod, be coated at piston rod and be provided with elastomeric damper member, between described elastomeric damper member and damping spring, isolate; The mode of isolation can adopt existing any mechanical structure that can realize isolation, comprises isolation net etc.; The whole elastomeric damper member that elastomeric damper member refers generally to, such as whole rubber parts.
Further, between described elastomeric damper member and damping spring, by being coated at the separation sleeve of elastomeric damper member, isolate; Adopt separation sleeve structure, have good integrity, installing/dismounting more for convenience, and is realized comprehensive isolation in a circumferential direction, when avoiding in vehicle heavy duty or being subject to impacting, damping spring causes shear fracture to rubber bushing, guarantees the working life of elastomeric damper member;
Further, described elastomeric damper member is that maximum volume and the described elastomeric damper member that overall structure and its volume are less than described separation sleeve extended separation sleeve to head end vertically; Head end refers to the one end of meeting to damper cylinder; The maximum volume that the volume of elastomeric damper member is less than described separation sleeve can guarantee that elastomeric damper member can be fully out of shape under larger impact force, and can be contained in completely in separation sleeve after maximum distortion, avoid separation sleeve to elastomeric damper member shear fracture, also further avoid the destruction of being sheared by damping spring or rub; The deformation quantity of elastomeric damper member can effectively be controlled, guarantee the maximum functional stroke of buffering type shock absorber assembly.
Further, described elastomeric damper member at least forms to the diminishing cone structure of head end at the part periphery near head end; Because head end extends separation sleeve, cone structure not only can increase and damping spring between distance, avoid being subject to the destruction of damping spring, can also guarantee under the prerequisite of enough axial lengths, compared with under heavy load, first the distortion that withstands shocks, and the rigidity after making to impact increases gradually, improves travelling comfort; Meanwhile, cone structure provides the larger larger distortion of formation after being impacted and under separation sleeve constraint.
Further, described separation sleeve end radially outwards bending form the annular edge of a wing, piston-rod end is provided with at least at the fixing spring seat of damping spring pretightening force direction, the described annular edge of a wing is pressed on spring seat by the pretightening force of damping spring; Simple mounting structure, is beneficial to dismounting, and can guarantees the stable installation of separation sleeve.
Further, the part periphery that described elastomeric damper member is positioned near its end is cylindrical structural, and this cylindrical structural is against spring seat and is positioned at separation sleeve, and this cylindrical structural is beneficial to the integral rigidity while guaranteeing shock resistance, improves load-carrying ability; Meanwhile, can stablize axis, leading role while increasing motion, avoids forming deflecting torque, guarantees working life.
Further, the ratio of the axial length that the cylindrical structural of described elastomeric damper member is shared is less than 2/5, this proportion can guarantee between two-part of elastomeric damper member cooperative bearing and guarantee stressed directional stability, when reducing larger impact endurance test shock, make to control maximum deformation quantity and form quantification.
Further, elastomeric damper member forms mouthful large cone shape hole gradually for the inner circle through piston rod near end, near head end, is straight hole, makes elastomeric damper member have enough Internal Hole Deformation spaces, avoids extruding or friction that it is formed and is destroyed.
Further, described spring seat is positioned at its cylindrical and has radial opening groove; Ponding, the impact of silting on the destruction of its integral body of damping and performance have been avoided.
Further, described elastomeric damper member is that rubber material is made; Such as conventional polyurethane is designed to rubber material, also can increase endurance quality, have that hardness is high, intensity good, a high elasticity, high wear resistance, tear-resistant, ageing-resistant, guarantee performance and the working life of elastomeric damper member.
The beneficial effects of the utility model: buffering type shock absorber assembly of the present utility model, employing forms the structure of isolation between damping spring and elastomeric damper member, can make elastomeric damper member be subject to impacting while there is compression-expansion, can not contact with damping spring, effectively avoid damping spring to cause shear fracture to elastomeric damper member, guarantee the working life of elastomeric damper member, and can make elastomeric damper member when being subject to impacting, increase gradually rigidity, excessively mild, and then eliminate and impact; Can effectively control the deformation quantity of elastomeric damper member, guarantee the maximum functional stroke of buffering type shock absorber assembly, the fault such as avoid interfering, can in equal range situation, greatly improve maximum load capacity value, increase safety reliability; The utility model is simple in structure, easily manufactured, with low cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of isolating cylinder of the present utility model.
Fig. 3 is the structural representation of spring seat of the present utility model;
Fig. 4 is elastomeric damper member structural representation.
Embodiment
Fig. 1 is structural representation of the present utility model; Fig. 2 is the structural representation of isolating cylinder of the present utility model; Fig. 3 is the structural representation of spring seat of the present utility model, Fig. 4 is elastomeric damper member structural representation, as shown in the figure, a kind of buffering type shock absorber assembly that the utility model provides, at least comprise damper cylinder 1 and piston assembly, the piston rod 2 that is coated at damper cylinder 1 and piston assembly is provided with damping spring 3, and as shown in the figure, damping spring 3 integral sleeve are in damper cylinder 1 and piston rod 2 cylindricals; Between damping spring and piston rod 2, be coated at piston rod and be provided with elastomeric damper member 4, isolation between described elastomeric damper member 4 and damping spring 3; The mode of isolation can adopt existing any mechanical structure that can realize isolation, comprises isolation net etc.; The whole elastomeric damper member that elastomeric damper member 4 refers generally to, such as whole rubber parts.
In the present embodiment, between described elastomeric damper member 4 and damping spring 3, by being coated at the separation sleeve 5 of elastomeric damper member, isolate; Adopt separation sleeve 4 structures, have good integrity, installing/dismounting more for convenience, and is realized comprehensive isolation in a circumferential direction, when avoiding in vehicle heavy duty or being subject to impacting, damping spring causes shear fracture to rubber bushing, guarantees the working life of elastomeric damper member;
In the present embodiment, described elastomeric damper member 4 is extended separation sleeve 4 to head end vertically for maximum volume and described elastomeric damper member 4 that overall structure and its volume are less than described separation sleeve 5; Head end refers to the one end of meeting to damper cylinder 1, extends separation sleeve 4 and could realize effectively the bumper and absorbing shock under greater impact power; The maximum volume that the volume of elastomeric damper member 4 is less than described separation sleeve 5 can guarantee that elastomeric damper member 4 can be fully out of shape under larger impact force, and can be contained in separation sleeve 5 completely after maximum distortion, avoid 5 pairs of elastomeric damper member 4 shear fracture of separation sleeve, also further avoid the destruction of being sheared by damping spring or rub; The deformation quantity of elastomeric damper member can effectively be controlled, guarantee the maximum functional stroke of buffering type shock absorber assembly.
In the present embodiment, described elastomeric damper member 4 at least forms to the diminishing cone structure 4a of head end at the part periphery near head end; Because head end extends separation sleeve 5, cone structure 4a not only can increase and damping spring 3 between distance, avoid being subject to the destruction of damping spring 3, can also guarantee under the prerequisite of enough axial lengths, compared with under heavy load, first the distortion that withstands shocks, and the rigidity after making to impact increases gradually, improves travelling comfort; Meanwhile, cone structure provides the larger larger distortion of formation after being impacted and under separation sleeve constraint.
In the present embodiment, the radially outside bending of described separation sleeve 5 ends forms the annular edge of a wing 6, and piston rod 2 ends are provided with at least at the fixing spring seat 7 of damping spring pretightening force direction, for supporting damping spring 3 and making it to form pretightening force; As shown in the figure, spring seat 7 is connected in piston rod by nut 8; The described annular edge of a wing 6 is pressed on spring seat 7 by the pretightening force of damping spring 3; Simple mounting structure, is beneficial to dismounting, and can guarantees the stable installation of separation sleeve; As shown in the figure, spring seat 7 is installed on piston rod 2 by nut 8.
In the present embodiment, the part periphery that described elastomeric damper member 4 is positioned near its end is cylindrical structural, and certainly, the diameter of this cylindrical structural is identical with the large footpath of cone structure, does not repeat them here; This cylindrical structural is against spring seat and is positioned at separation sleeve 5, and this cylindrical structural is beneficial to the integral rigidity while guaranteeing shock resistance, improves load-carrying ability; Meanwhile, can stablize axis, increase leading role, avoid forming deflecting torque, guarantee working life; As shown in the figure, the axial length of cylindrical structural can not surpass 2/3rds of separation sleeve 5 axial lengths, and avoiding cannot steady-state deformation.
In the present embodiment, the ratio of the axial length of the shared elastomeric damper member 4 of the cylindrical structural of described elastomeric damper member 4 is less than 2/5, and the present embodiment adopts 1/3; This proportion can guarantee between two-part of elastomeric damper member cooperative bearing and guarantee stressed directional stability, when reducing larger impact endurance test shock, makes to control maximum deformation quantity and forms and quantize.
In the present embodiment, elastomeric damper member 4 forms mouthful large cone shape hole 4b gradually for the inner circle through piston rod 2 near end, near head end, is straight hole, makes elastomeric damper member have enough Internal Hole Deformation spaces, reduce friction and easily distortion, avoid extruding or friction that it is formed and is destroyed.
In the present embodiment, described spring seat 7 is positioned at its cylindrical and has radial opening groove 7a; Ponding, the impact of silting on the destruction of its integral body of damping and performance have been avoided.
In the present embodiment, described elastomeric damper member is that rubber material is made; Such as conventional polyurethane is designed to rubber material, also can increase endurance quality, have that hardness is high, intensity good, a high elasticity, high wear resistance, tear-resistant, ageing-resistant, guarantee performance and the working life of elastomeric damper member; Separation sleeve 5 material requirements have certain high strength, generally adopt 10 or 45 steel, this separation sleeve 5 when elastomeric damper member 4 is subject to compression swelling, protect its avoid being subject to spring is pressed and shear fracture, guarantee that damping spring works under normal state simultaneously.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. a buffering type shock absorber assembly, comprise damper cylinder and piston assembly, the piston rod that is coated at damper cylinder and piston assembly is provided with damping spring, it is characterized in that: between damping spring and piston rod, be coated at piston rod and be provided with elastomeric damper member, between described elastomeric damper member and damping spring, isolate.
2. buffering type shock absorber assembly according to claim 1, is characterized in that: between described elastomeric damper member and damping spring, by being coated at the separation sleeve of elastomeric damper member, isolate.
3. buffering type shock absorber assembly according to claim 2, is characterized in that: described elastomeric damper member is that maximum volume and the described elastomeric damper member that overall structure and its volume are less than described separation sleeve extended separation sleeve to head end vertically.
4. buffering type shock absorber assembly according to claim 2, is characterized in that: described elastomeric damper member at least forms to the diminishing cone structure of head end at the part periphery near head end.
5. buffering type shock absorber assembly according to claim 2, it is characterized in that: the radially outside bending of described separation sleeve end forms the annular edge of a wing, piston-rod end is provided with at least at the fixing spring seat of damping spring pretightening force direction, and the described annular edge of a wing is pressed on spring seat by the pretightening force of damping spring.
6. buffering type shock absorber assembly according to claim 4, is characterized in that: the part periphery that described elastomeric damper member is positioned near its end is cylindrical structural, and this cylindrical structural is against spring seat and is positioned at separation sleeve.
7. buffering type shock absorber assembly according to claim 2, is characterized in that: the ratio of the axial length that the cylindrical structural of described elastomeric damper member is shared is less than 2/5.
8. buffering type shock absorber assembly according to claim 2, is characterized in that: elastomeric damper member forms mouthful large cone shape hole gradually for the inner circle through piston rod near end, near head end, is straight hole.
9. buffering type shock absorber assembly according to claim 5, is characterized in that: described spring seat is positioned at its cylindrical and has radial opening groove.
10. buffering type shock absorber assembly according to claim 2, is characterized in that: described elastomeric damper member is that rubber material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597790.7U CN203500359U (en) | 2013-09-26 | 2013-09-26 | Cushion type shock absorber assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597790.7U CN203500359U (en) | 2013-09-26 | 2013-09-26 | Cushion type shock absorber assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500359U true CN203500359U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320597790.7U Expired - Fee Related CN203500359U (en) | 2013-09-26 | 2013-09-26 | Cushion type shock absorber assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470678A (en) * | 2013-09-26 | 2013-12-25 | 重庆隆鑫机车有限公司 | Shock absorber |
| CN106015452A (en) * | 2015-03-31 | 2016-10-12 | 现代自动车株式会社 | Variable frequency damper for drive shaft of vehicle |
-
2013
- 2013-09-26 CN CN201320597790.7U patent/CN203500359U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470678A (en) * | 2013-09-26 | 2013-12-25 | 重庆隆鑫机车有限公司 | Shock absorber |
| CN103470678B (en) * | 2013-09-26 | 2016-08-31 | 重庆隆鑫机车有限公司 | Damper |
| CN106015452A (en) * | 2015-03-31 | 2016-10-12 | 现代自动车株式会社 | Variable frequency damper for drive shaft of vehicle |
| CN106015452B (en) * | 2015-03-31 | 2019-08-16 | 现代自动车株式会社 | The variable frequency damper of transmission shaft for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180926 |
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| CF01 | Termination of patent right due to non-payment of annual fee |