CN103470678B - Damper - Google Patents
Damper Download PDFInfo
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- CN103470678B CN103470678B CN201310446394.9A CN201310446394A CN103470678B CN 103470678 B CN103470678 B CN 103470678B CN 201310446394 A CN201310446394 A CN 201310446394A CN 103470678 B CN103470678 B CN 103470678B
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- damper member
- elastomeric damper
- damping spring
- elastomeric
- damper
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Abstract
A kind of damper that the present invention provides, including damper cylinder and piston component, the piston rod being coated at damper cylinder and piston component is provided with damping spring, is coated at piston rod and is provided with elastomeric damper member between damping spring and piston rod, isolates between elastomeric damper member and damping spring；When the present invention can make elastomeric damper member be subject to impact that compression-expansion occurs, will not contact with damping spring, it is prevented effectively from damping spring and elastomeric damper member is caused failure by shear, ensure the service life of elastomeric damper member, and elastomeric damper member can be made when impacting to be gradually increased rigidity, mild excessive, and then eliminate impact；Can effectively control the deformation quantity of elastomeric damper member, it is ensured that the maximum functional stroke of damper, it is to avoid the fault such as interfere, by increasing capacitance it is possible to increase impact resistance and maximum load, increase security reliability, present configuration is simple, easily manufactured, with low cost.
Description
Technical field
The present invention relates to a kind of motor vehicle component, particularly relate to a kind of damper.
Background technology
Damper is the critical piece of motor vehicles, for improving the driving comfort of vehicle, and ensures relatively
For ensureing the performance and used life of car load under severe running environment.Commonly used damper generally comprises
Damper cylinder and piston rod, be cased with damping spring outside damper cylinder and piston rod, and one end of piston rod is arranged
There is piston component and be deep in damper cylinder, the other end (i.e. the end of travel of rear shock absorber) of piston rod
External diameter is installed less than the elastomeric damper member of damping spring internal diameter, in order to increase at big load or when running into impact
Rigidity, strengthens the comfortableness of vehicle simultaneously；Owing to damping spring is irregular by interior wall construction after compression
Structure, it is impossible to effectively control the largest deformation amount of elastomeric damper member, thus cannot ensure the maximum work of damping
Make stroke, easily cause the hidden danger such as interference；And when vehicle is when driving by large impact, elasticity subtracts
Shake part deformation quantity increases (i.e. elastomeric damper member is occurred compression-expansion by impact), the even greater than internal diameter of spring,
When elastomeric damper member deformation, damping spring is compressed, so that elastomeric damper member is caused shearing by damping spring
Destroy so that the performance of elastomeric damper member is destroyed, and has a strong impact on the comfortableness of driving；Along with elasticity subtracts
Shake part is sheared the number of times of destruction to be increased, the extent of damage aggravation of elastomeric damper member, thus elastic shock attenuation occurs
Part comes off, and when vehicle heavy duty or during by large impact, damper cylinder will be provided with subtract with being arranged at piston rod
Shake spring pedestal produces rigid impact, in turn results in damper generation leakage of oil and damages, in some instances it may even be possible to causes safety
Accident.
Accordingly, it would be desirable to existing damper is improved, it is possible to make elastomeric damper member be subject to impact to press
When contracting expands, will not contact with damping spring, be prevented effectively from damping spring and elastomeric damper member causes shearing broken
Bad, it is ensured that the service life of elastomeric damper member, and elastomeric damper member can be made gradually to be increased when impacting
Big rigidity, the most excessively, and then eliminates impact；Can effectively control the deformation quantity of elastomeric damper member, it is ensured that
The maximum functional stroke of damper, it is to avoid the fault such as interfere, it is possible to big when equal maximum functional stroke
Big its maximum load capacity value that increases, increase impact resistance and bearing capacity, increase security reliability.
Summary of the invention
In view of this, a kind of damper that the present invention provides, it is possible to make elastomeric damper member be subject to impact to press
When contracting expands, will not contact with damping spring, be prevented effectively from damping spring and elastomeric damper member causes shearing broken
Bad, it is ensured that the service life of elastomeric damper member, and elastomeric damper member can be made gradually to be increased when impacting
Big rigidity, the most excessively, and then eliminates impact；Can effectively control the deformation quantity of elastomeric damper member, it is ensured that
The maximum functional stroke of damper, it is to avoid the fault such as interfere, it is possible to big when equal maximum functional stroke
Big its maximum load capacity value that increases, increase impact resistance and bearing capacity, increase security reliability.
A kind of damper that the present invention provides, at least includes damper cylinder and piston component, is coated at damper
The piston rod of cylinder and piston component is provided with damping spring, is coated at piston between damping spring and piston rod
Bar is provided with elastomeric damper member, isolates between described elastomeric damper member and damping spring；The mode of isolation can use
Existing any frame for movement being capable of isolation, including separation net etc.；It is whole that elastomeric damper member refers generally to
The elastomeric damper member of body, such as overall rubber parts.
Further, by being coated at the separation sleeve of elastomeric damper member between described elastomeric damper member and damping spring
Isolation；Using separation sleeve structure, have preferable globality, installing/dismounting is more convenient, and realizes
Comprehensive isolation on circumferencial direction, it is to avoid damping spring is to rubber bushing in vehicle heavy duty or when being impacted
Cause failure by shear, it is ensured that the service life of elastomeric damper member；
Further, described elastomeric damper member is the maximum volume that overall structure and its volume are less than described separation sleeve
And described elastomeric damper member extends separation sleeve to head end vertically；Head end refers to meet to damper cylinder
End；The volume of elastomeric damper member ensure that under a larger impact force less than the maximum volume of described separation sleeve
Elastomeric damper member can fully deform, and can be contained in completely in separation sleeve after maximum distortion, it is to avoid separation sleeve
To elastomeric damper member failure by shear, avoid the most further being sheared or friction destruction by damping spring；Make elasticity
The deformation quantity of shock absorber part can effectively control, it is ensured that the maximum functional stroke of damper.
Further, described elastomeric damper member is at least formed at the part periphery near head end and gradually contracts to head end
Little pyramidal structure；Owing to head end extends separation sleeve, pyramidal structure be not only able to increase with damping spring it
Between distance, it is to avoid destroyed by damping spring, moreover it is possible to ensure on the premise of enough axial lengths,
Under relatively large load, it is first subject to blastic deformation, and makes the rigidity after impact be gradually increased, improve comfortableness；
Meanwhile, pyramidal structure provides and bigger forms bigger change after being impacted and under separation sleeve retrains
Shape.
Further, described separation sleeve end radially bending forms the annular edge of a wing, and piston-rod end is provided with
At least fixing in damping spring pretightning force direction spring base, the described annular edge of a wing is by the pretightning force of damping spring
It is pressed on spring base；Simple mounting structure, is beneficial to dismounting, and can guarantee that the stable installation of separation sleeve.
Further, it is cylindrical structural that described elastomeric damper member is located close to the part periphery of its end, should
Cylindrical structural is against spring base and is positioned at separation sleeve, this cylindrical structural be beneficial to ensure shock resistance time whole
Body rigidity, improves load-carrying ability；Meanwhile, it is capable to stablize axis, guide effect when increasing motion, it is to avoid shape
Become deflection torque, it is ensured that service life.
Further, the ratio of the axial length shared by the cylindrical structural of described elastomeric damper member is less than 2/5,
This proportion ensure that between two parts of elastomeric damper member cooperative bearing and ensures that the direction of stress is stable
Property, while reducing bigger impact endurance test shock so that control maximum deformation quantity and form quantization.
Further, elastomeric damper member for forming the taper gradually expanded through the inner circle of piston rod near end
Mouthful so that elastomeric damper member has enough Internal Hole Deformation spaces, it is to avoid extrudes or rubs to form it and destroys.
Further, described spring base is positioned at its cylindrical and has radial opening groove；Avoid ponding, silting
Destruction and the impact of performance on its entirety of damping.
Further, described elastomeric damper member is that elastomeric material is made；Such as conventional polyurethane is designed as rubber
Material also can increase endurance quality, have that hardness is high, intensity is good, high resiliency, high-wearing feature, tear-resistant,
Ageing-resistant, it is ensured that the performance of elastomeric damper member and service life.
Beneficial effects of the present invention: the damper of the present invention, uses between damping spring and elastomeric damper member
Form the structure of isolation, it is possible to when making elastomeric damper member be subject to impact that compression-expansion occurs, will not be with damping bullet
Spring contacts, and is prevented effectively from damping spring and elastomeric damper member is caused failure by shear, it is ensured that making of elastomeric damper member
With the life-span, and elastomeric damper member can be made when impacting to be gradually increased rigidity, the most excessively, and then
Eliminate impact；Can effectively control the deformation quantity of elastomeric damper member, it is ensured that the maximum functional stroke of damper,
Avoid faults such as interfering, it is possible in the case of equal range, be greatly improved maximum load capacity value,
Increase security reliability；Present configuration is simple, easily manufactured, with low cost.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the isolating cylinder of the present invention.
Fig. 3 is the structural representation of the spring base of the present invention；
Fig. 4 is elastomeric damper member structural representation.
Detailed description of the invention
Fig. 1 is the structural representation of the present invention；Fig. 2 is the structural representation of the isolating cylinder of the present invention；Fig. 3
For the structural representation of the spring base of the present invention, Fig. 4 is elastomeric damper member structural representation, as it can be seen,
A kind of buffer-type shock absorber assembly that the present invention provides, at least includes damper cylinder 1 and piston component, overcoat
Piston rod 2 in damper cylinder 1 and piston component is provided with damping spring 3, as it can be seen, damping spring 3
Integral sleeve is in damper cylinder 1 and piston rod 2 cylindrical；It is coated between damping spring and piston rod 2
Piston rod is provided with elastomeric damper member 4, isolates between described elastomeric damper member 4 and damping spring 3；Isolation
Mode can use existing any frame for movement being capable of isolation, including separation net etc.；Elastomeric damper member
The 4 overall elastomeric damper member referred generally to, such as overall rubber parts.
In the present embodiment, by being coated at elastomeric damper member between described elastomeric damper member 4 and damping spring 3
Separation sleeve 5 isolate；Using separation sleeve 4 structure, have preferable globality, installing/dismounting is more convenient,
And realize comprehensive isolation in a circumferential direction, it is to avoid damping spring in vehicle heavy duty or when being impacted
Rubber bushing is caused failure by shear, it is ensured that the service life of elastomeric damper member；
In the present embodiment, described elastomeric damper member 4 is that overall structure and its volume are less than described separation sleeve 5
Maximum volume and described elastomeric damper member 4 extend separation sleeve 4 to head end vertically；Head end refer to meet to
One end of damper cylinder 1, extends separation sleeve 4 and could realize the bumper and absorbing shock under greater impact power effectively；
The volume of elastomeric damper member 4 ensure that under a larger impact force less than the maximum volume of described separation sleeve 5
Elastomeric damper member 4 can fully deform, and can be contained in completely in separation sleeve 5 after maximum distortion, it is to avoid every
From set 5 to elastomeric damper member 4 failure by shear, avoid the most further being sheared or friction destruction by damping spring；
The deformation quantity making elastomeric damper member can effectively control, it is ensured that the maximum functional row of buffer-type shock absorber assembly
Journey.
In the present embodiment, described elastomeric damper member 4 is at least formed to head end at the part periphery near head end
Diminishing pyramidal structure 4a；Owing to head end extends separation sleeve 5, pyramidal structure 4a is not only able to increase
And the distance between damping spring 3, it is to avoid by the destruction of damping spring 3, moreover it is possible to ensure the most axial
On the premise of length, under heavy load, it is first subject to blastic deformation, and makes the rigidity after impact gradually increase
Add, improve comfortableness；Meanwhile, pyramidal structure provide bigger after being impacted and at separation sleeve about
Bundle is lower forms bigger deformation.
In the present embodiment, described separation sleeve 5 end radially bending forms the annular edge of a wing 6, piston rod 2
End is provided with at least fixing in damping spring pretightning force direction spring base 7, is used for supporting damping spring 3 also
It is allowed to form pretightning force；As it can be seen, spring base 7 is connected to piston rod by nut 8；The described annular edge of a wing
6 are pressed on spring base 7 by the pretightning force of damping spring 3；Simple mounting structure, is beneficial to dismounting, and can guarantee that
The stable installation of separation sleeve；As it can be seen, spring base 7 is installed on piston rod 2 by nut 8.
In the present embodiment, it is cylinder knot that described elastomeric damper member 4 is located close to the part periphery of its end
Structure, certainly, the diameter of this cylindrical structural is identical with the big footpath of pyramidal structure, does not repeats them here；This circle
Column construction is against spring base and is positioned at separation sleeve 5, this cylindrical structural be beneficial to ensure shock resistance time whole
Body rigidity, improves load-carrying ability；Meanwhile, it is capable to stablize axis, increase guide effect, it is to avoid form deflection
Moment, it is ensured that service life；As it can be seen, the axial length of cylindrical structural not can exceed that separation sleeve 5 axle
To 2/3rds of length, it is to avoid cannot steady-state deformation.
In the present embodiment, the axial length of elastomeric damper member 4 shared by the cylindrical structural of described elastomeric damper member 4
The ratio of degree is less than 2/5, and the present embodiment uses 1/3；This proportion ensure that two of elastomeric damper member
/ cooperative bearing and the directional stability of guarantee stress, while reducing bigger impact endurance test shock so that
Control maximum deformation quantity and form quantization.
In the present embodiment, elastomeric damper member 4 is for gradually expanding through the inner circle of piston rod 2 near end formation
Big bellmouth 4b, is straight hole near head end so that elastomeric damper member has enough Internal Hole Deformation spaces,
Reduce friction and be easily deformed, it is to avoid extruding or rub it is formed and destroy.
In the present embodiment, described spring base 7 is positioned at its cylindrical and has radial opening groove 7a；Avoid ponding,
The silting destruction on its entirety of damping and the impact of performance.
In the present embodiment, described elastomeric damper member is that elastomeric material is made；Such as conventional polyurethane is designed as
Elastomeric material also can increase endurance quality, has that hardness is high, intensity is good, high resiliency, high-wearing feature, resistance to tears
Split, ageing-resistant, it is ensured that the performance of elastomeric damper member and service life；Separation sleeve 5 material requirements has necessarily
High intensity, general use 10 or 45 steel, this separation sleeve 5 when elastomeric damper member 4 is by compression swelling,
Protect it to avoid by spring to press failure by shear also, ensure that damping spring works in normal state simultaneously.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (5)
1. a damper, including damper cylinder and piston component, is coated at damper cylinder and piston component
Piston rod is provided with damping spring, it is characterised in that: between damping spring and piston rod, it is coated at piston rod
Be provided with elastomeric damper member, between described elastomeric damper member and damping spring isolate, described elastomeric damper member with subtract
By being coated at the separation sleeve isolation of elastomeric damper member between shake spring, described elastomeric damper member is overall structure
And its volume less than the maximum volume of described separation sleeve and described elastomeric damper member vertically to head end extend every
From set, elastomeric damper member for forming the bell gradually expanded, institute through the inner circle of piston rod near end
State elastomeric damper member at least to be formed to the diminishing pyramidal structure of head end at the part periphery near head end,
Piston-rod end is provided with at least fixing in damping spring pretightning force direction spring base, and described spring base is positioned at it
Cylindrical has radial opening groove.
Damper the most according to claim 1, it is characterised in that: described separation sleeve end is radially
Bending forms the annular edge of a wing, and the described annular edge of a wing is pressed on spring base by the pretightning force of damping spring.
Damper the most according to claim 2, it is characterised in that: described elastomeric damper member is located close to it
The part periphery of end is cylindrical structural, and this cylindrical structural is against spring base and is positioned at separation sleeve.
Damper the most according to claim 3, it is characterised in that: the cylindrical knot of described elastomeric damper member
The ratio of the axial length shared by structure is less than 2/5.
Damper the most according to claim 4, it is characterised in that: described elastomeric damper member is elastomeric material
Make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446394.9A CN103470678B (en) | 2013-09-26 | 2013-09-26 | Damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446394.9A CN103470678B (en) | 2013-09-26 | 2013-09-26 | Damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103470678A CN103470678A (en) | 2013-12-25 |
| CN103470678B true CN103470678B (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310446394.9A Active CN103470678B (en) | 2013-09-26 | 2013-09-26 | Damper |
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| CN (1) | CN103470678B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757802B (en) * | 2018-07-04 | 2019-11-12 | 桐乡恒益纸塑有限公司 | A kind of pump drive system damping device |
| CN111536189B (en) * | 2020-04-22 | 2022-04-22 | 南京航空航天大学 | Oil gas and expanding combined type crash-resistant buffer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2814010Y (en) * | 2005-08-10 | 2006-09-06 | 万向钱潮股份有限公司 | Dustproof vibration-damper |
| CN201265620Y (en) * | 2008-08-24 | 2009-07-01 | 比亚迪股份有限公司 | Vibration absorber |
| CN101929519A (en) * | 2009-06-19 | 2010-12-29 | 株式会社昭和 | Hydraulic buffer |
| CN203500359U (en) * | 2013-09-26 | 2014-03-26 | 重庆隆鑫机车有限公司 | Cushion type shock absorber assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7281705B2 (en) * | 2005-07-22 | 2007-10-16 | Basf Corporation | Jounce assembly for a suspension system |
-
2013
- 2013-09-26 CN CN201310446394.9A patent/CN103470678B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2814010Y (en) * | 2005-08-10 | 2006-09-06 | 万向钱潮股份有限公司 | Dustproof vibration-damper |
| CN201265620Y (en) * | 2008-08-24 | 2009-07-01 | 比亚迪股份有限公司 | Vibration absorber |
| CN101929519A (en) * | 2009-06-19 | 2010-12-29 | 株式会社昭和 | Hydraulic buffer |
| CN203500359U (en) * | 2013-09-26 | 2014-03-26 | 重庆隆鑫机车有限公司 | Cushion type shock absorber assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470678A (en) | 2013-12-25 |
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