CN102465990A - Shock absorbing bushing used for control arm - Google Patents
Shock absorbing bushing used for control arm Download PDFInfo
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- CN102465990A CN102465990A CN2010105449536A CN201010544953A CN102465990A CN 102465990 A CN102465990 A CN 102465990A CN 2010105449536 A CN2010105449536 A CN 2010105449536A CN 201010544953 A CN201010544953 A CN 201010544953A CN 102465990 A CN102465990 A CN 102465990A
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- shell
- fuse
- shock absorbing
- absorbing bushing
- cutting ferrule
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Abstract
The invention discloses a shock absorbing bushing used for a control arm. The shock absorbing bushing at least comprises a shell, a core, and an inner lining piece, wherein the shell is sleeved on the core, the core is positioned between the shell and the core, and the inner lining piece is used for being flexibly connected with the shell and the core; a first damping liquid studio, a second damping liquid studio and a flow channel are formed between the inner lining piece and the shell along the radial direction of the core, wherein the flow channel passes through the first damping liquid studio and the second damping liquid studio; a first cutting sleeve is sleeved on a first end of the core, and a first sheath is arranged between the first cutting sleeve and the internal surface of the shell; and a second cutting sleeve is sleeved on a second end of the core, and a second sheath is arranged between the second cutting sleeve and the internal surface of the shell. The shock absorbing bushing provided by the invention has the advantages that the structure is adopted to arrange a three-layer shock absorption structure, the dynamic stiffness of the inner lining piece is improved through improving the stressing condition of the inner lining piece, the service life of the shock absorbing bushing is prolonged, and the shock absorbing bushing has a spacing control effect on the core and the shell.
Description
Technical field
The present invention relates to a kind of field of mechanical technique, particularly relate to a kind of shock absorbing bushing that is used for the vehicle suspension system control arm.
Background technique
Automobile is a multivariant oscillating body, and the control arm lining of its suspension system is mainly used in the fixedly position of control arm, isolates the vibration that wheel passes to suspension system under steam.
Be illustrated in figure 1 as a kind of shock absorbing bushing that is used for control arm of the prior art, mainly comprise parts such as shell 1, fuse 2, inner piece 3.Referring to shown in Figure 2, the shell 1 that is positioned at appearance is a cylindrical work durm spare, and the outer surface through this work durm spare in application is embedded in whole shock absorbing bushing in the installation macropore of control arm.Being positioned at inner fuse 2 is aluminum castings, and offers mounting hole 21, is located in wherein with the little support arm of the frame of in application, buying car in installments.
In the above-mentioned shock absorbing bushing, the inner piece 3 of rubber material flexibly connects together through being positioned between the two with fuse 2 for shell 1, and the inner piece 3 of rubber material is one deck shock-damping structure, can play certain cushioning effect.
Further, the footpath along fuse 2 between shell 1 and inner piece 3 upwards also is formed with airtight upper and lower two damping sap cavities, constitutes a damp liquid working room 31, a damp liquid working room 32 respectively.When shock absorbing bushing was worked, the damp liquid in damp liquid in the damp liquid working room 31 and the damp liquid working room 32 can pass through a passage 33 convection current.When shock absorbing bushing when receiving the low frequency large-amplitude vibration; The volume of damp liquid working room 31, damp liquid working room 32 can change thereupon; Between working room 31 and working room 32, produce certain pressure difference simultaneously; The existence of this pressure difference impels the damp liquid in working room 31 and the working room 32 to follow outside vibrations and between vibrates back and forth through passage 33, thereby absorbs outside vibration energy, plays the effect of damping.Especially when resonance appearred in the vibration of damp liquid, shock absorbing bushing can show big damping and big dynamic stiffness.Two hydraulic damping chambers of above-mentioned connection constitute the second layer shock-damping structure in the shock absorbing bushing jointly.In practical implementation, two hydraulic damping chambers of connection can be through the realization that is sealed and matched of outer skeletal structure and shell, and this is a structural design scheme ripe in the existing technology, and this paper repeats no more.
Above-mentioned existing technical scheme adopts the inner piece and the design of hydraulic damping chamber structure combining of rubber material, forms a kind of shock absorbing bushing of double-layer shock-absorbing structure, has improved the damping characteristic of shock absorbing bushing when broadband, various amplitude effectively.
But when vehicle on the road surface of jolting very much or when running at high speed; Because vibration displacement is bigger; The stress that receives on the inner piece 3 can be very concentrated; And the dynamic stiffness of the inner piece 3 of rubber material is less in the shock absorbing bushing, and especially the damping performance of inner piece 3 can decline to a great extent when surpassing certain vibration frequency.The working life of shock absorbing bushing has not only been shortened in the existence of these defectives greatly, has also seriously influenced occupant's ride quality.
Therefore, those skilled in the art are devoted to develop a kind of long service life, handling good shock absorbing bushing always.
Summary of the invention
The technical problem that the present invention will solve is to overcome the shock absorbing bushing of the prior art defective that damping performance declines to a great extent when the vibration of control arm exceeds certain frequency; Improve the damping characteristic of existing shock absorbing bushing, a kind of long service life, handling good shock absorbing bushing are provided.
The present invention solves above-mentioned technical problem through following technical proposals:
The invention provides a kind of shock absorbing bushing that is used for control arm, comprise shell at least, be set in the fuse in the said shell, between said shell and said fuse, be used to flexibly connect the inner piece of said shell and said fuse; Radially be formed with the first damp liquid working room, the second damp liquid working room and connect the fluid passage of said first damp liquid working room and the said second damp liquid working room along said fuse between said inner piece and the said shell; Be arranged with first cutting ferrule on the first end of said fuse, be provided with first sheath between the internal surface of said first cutting ferrule and said shell; Be arranged with second cutting ferrule on the second end of said fuse, be provided with second sheath between the internal surface of said second cutting ferrule and said shell.
Preferably, said shell is provided with the outer skeleton that supports said inner piece in the inboard, and said first sheath is arranged between said first cutting ferrule and the said outer skeleton; Said second sheath is arranged between said second cutting ferrule and the said outer skeleton.
Preferably, said fuse, said outer skeleton and the sulfuration of said inner piece are integrally formed structure.
Preferably, offer groove on the said outer skeleton, said groove forms said fluid passage.
Preferably, the end of said first cutting ferrule is concordant with the said first end of said fuse; The end of said second cutting ferrule is concordant with the said the second end of said fuse.
Preferably, offer mounting hole in the said fuse, offer restraining groove on the said mounting hole.
Preferably, the outer rim of said inner piece is provided with seal ring, the internal surface interference fit of said seal ring and said shell.
Preferably, the shaft axis of said fuse and the shaft axis of said shell shift to install, and the shaft axis of said fuse is set size to the opposite direction skew one that receives force direction of said fuse.Particularly, said setting is of a size of the 0.5-3 millimeter.
Preferably, said inner piece is a rubber material.
Among the present invention, but above-mentioned optimum condition combination in any on the basis that meets related domain general knowledge promptly gets each preferred embodiments of the present invention.
Positive progressive effect of the present invention is:
Shock absorbing bushing of the present invention is rational in infrastructure, with first cutting ferrule of nylon material, the two ends that second cutting ferrule is arranged on fuse, first sheath, second sheath of rubber material is embedded in respectively between above-mentioned cutting ferrule and the shell.At the two ends of the fuse of shock absorbing bushing during unbalance stress; Said structure can make effectively and act on the uneven external force in fuse two ends and pass to inner piece equably; Through improving the force-bearing situation of inner piece; Prolong the working life of the inner piece of rubber material widely, also improved the dynamic stiffness of inner piece simultaneously.
The present invention is on the basis of the double-layer shock-absorbing structure of existing shock absorbing bushing; First sheath, second sheath of first cutting ferrule, second cutting ferrule and the rubber material of nylon material have been set up at the two ends of fuse; Form the 3rd layer of shock-damping structure; Remedy the shortcoming of single-stage block rubber (being the inner piece of rubber) shock attenuation and insufficient rigidity in the existing technology, also fuse and shell have been had the effect of spacing control.The present invention is because the design concept of having adopted the cutting ferrule of inner piece, the nylon material of damp liquid and rubber material to combine, so vehicle more can absorb and eliminate major part passes to vehicle frame from wheel vibrations effectively when the low frequency large amplitude.
Therefore the present invention not only has existing rubber shock-absorbing lining bearing capacity preferably; Provide outside the function of conventional shock insulation piece, can also improve isolating affection further, prolonged the working life of fuse; Greatly improved the serviceability of shock absorbing bushing, improved that it is handling.
Description of drawings
Fig. 1 is the structural representation of existing shock absorbing bushing;
The sectional structure schematic representation of Fig. 2 Fig. 1;
Fig. 3 is the perspective view of one embodiment of the invention;
Fig. 4 is a front view embodiment illustrated in fig. 3;
Fig. 5 is the sectional view of A-A portion among Fig. 3;
Fig. 6 is the structural representation of Fig. 5 China and foreign countries skeleton;
Fig. 7 is the perspective view of ferrule part among Fig. 3;
Fig. 8 is the perspective view of sheath component among Fig. 3;
Fig. 9 is the mounting point relational structure schematic representation of cutting ferrule and sheath among Fig. 3.
Embodiment
Provide the present invention's one specific embodiment below in conjunction with accompanying drawing, to specify technological scheme of the present invention.
Referring to Fig. 3, shown in Figure 4, the present invention's one specific embodiment comprises the shell 1 of a metallic material, and shell 1 is a hollow cylinder, has two open ends.
In the present embodiment, more optimally, for the profile of simplifying fuse 2 and simplify its processing technology, skeleton 4 outside between shell 1 and fuse 2, also being provided with.As shown in Figure 6; Outer skeleton 4 is roughly a swiveling body structure; Adopt metal or other to have the material of certain intensity, be formed with recess 41,42 symmetrically, after assembling, to cooperate the formation first damp liquid working room 31, the second damp liquid working room 32 respectively with shell 1 in its outside.Also be formed with groove 43,44 outside on the two end part of skeleton 4 respectively, after assembling, to form two fluid passages 33 with shell 1 respectively.Outer skeleton 4 has not only been simplified the structure and the processing technology of fuse 2, also for inner piece 3 certain intensity is provided, and plays the effect of support.In this specific embodiment, fuse 2, outer skeleton 4 and inner piece 3 after accomplishing separately again sulfuration be integrally formed the formula structure.
As shown in Figure 5; Because said structure design; Between inner piece 3 and shell 1, along fuse 2 radially be formed with the first damp liquid working room 31, the second damp liquid working room 32, and connect the fluid passage 33 of the first damp liquid working room 31 and the second damp liquid working room 32.
Also be provided with seal ring 34 on the outer rim of inner piece 3, the internal surface interference fit of seal ring 34 and shell 1 to form the hermetic cavity body, constitutes the first damp liquid working room 31 and the second damp liquid working room 32 after pouring into damp liquid.
Referring to Fig. 7, shown in Figure 8, be arranged with first cutting ferrule, 51, the first sheaths 61 on the first end 21 of fuse 2 and be arranged between first cutting ferrule 51 and the outer skeleton 4.Being arranged with second cutting ferrule, 52, the second sheaths 62 on the second end 22 of fuse 2 is arranged between second cutting ferrule 52 and the outer skeleton 4.
The end of first cutting ferrule 51 is concordant with the first end 21 of fuse 2; The end of second cutting ferrule 52 is concordant with the second end 22 of fuse 2.
In the present embodiment, the structure of second cutting ferrule 52 and first cutting ferrule 51 are identical, and the structure of second sheath 62 and first sheath 61 are identical.The mounting point of above-mentioned four parts sees also shown in Figure 9.
The purpose that first sheath 61, second sheath 62 are set is to prevent fuse 2 because of stressed excessive, especially damages inner piece 3 during the unbalance stress of two ends.It is stressed even that this structure not only helps inner piece 3, protected inner piece 3, played position-limiting action; Also increase simultaneously the integrally-built dynamic stiffness of shock absorbing bushing.
In other specific embodiments, the structure of first cutting ferrule 51, second cutting ferrule 52 is not limit by accompanying drawing, and do not require identical yet.Equally, the structure of first sheath 61, second sheath 62 is not limit by accompanying drawing yet, and do not require identical yet.
In the present embodiment, the shaft axis of the shaft axis of fuse 2 and shell 1 is (referring to the Fig. 4, shown in Figure 5) that shifts to install.Particularly, the shaft axis of fuse 2 (being positioned at the shaft axis of upside among Fig. 4, Fig. 5) is set size to the opposite direction skew one that receives force direction of fuse 2.In different specific embodiments, this setting size can be chosen between the 0.5-3 millimeter according to the parameters such as size of load, or as in the present embodiment, the shaft axis of the shaft axis opposite shell 1 of fuse 2 upwards squints 1 millimeter.Structural design so, when vehicle during in state of rest, owing to receive the effect of the gravity of vehicle self, the shaft axis of the mounting hole 23 of fuse 2 and the shaft axis of shell 1 just can coincide together.
Working principle of the present invention below is described:
In the specific implementation, load passes to 2 last times of fuse through shell 1 through inner piece 3, and fuse 2 passes to load on the assembling support arm of vehicle body, accomplishes the supporting of car load and the transmission of dynamic load.
Meanwhile, pass on the shell 1 by control arm, cause the vibrations of shell 1 from the vibrations on road surface.Pass on the fuse 2 after shock insulation and the decay of the vibrations of shell 1 through the first damp liquid working room 31, the second damp liquid working room 32.Flexibly connect because fuse 2 and the first damp liquid working room 31, the second damp liquid working room 32 are the inner pieces 3 through damp liquid and rubber, be transferred on the vehicle body after passing through the decay of two-layer shock-damping structure from the vibrations on road surface like this.
In an application of the invention; Especially under the stressed unbalanced situation in two ends of fuse 2; First sheath 61 of first cutting ferrule 51, second cutting ferrule 52 and the rubber through nylon, the interaction between second sheath 62; Can make fuse 2 that power is passed to inner piece 3 uniformly, prevent that effectively the excessive situation that causes damaging inner piece 3 takes place fuse 2 because of the two ends unbalance stress reverses, and has increased the integrally-built dynamic stiffness of shock absorbing bushing.
Because said structure of the present invention; From the vibrations on road surface through in the existing two-layer shock-damping structure; Also be delivered on first sheath 61, second sheath 62 of rubber, pass to again on first cutting ferrule 51, second cutting ferrule 52 of nylon material, and then pass to fuse 2 through shell 1.Like this, just through just being delivered to after the decay of three grades of shock-damping structures on the vehicle body, damping effect is more obvious from the vibrations on road surface.
More superior is; Because damp liquid all has bigger damping to the vibrations of wider frequency range; Excited by impact from the road surface can be reduced,, and more the vibration that vehicle body produces can be reduced effectively in the vehicle driving process than traditional shock absorbing bushing so the present invention has stronger adaptability to various operating modes; Thereby the noise in the reduction car has improved the travelling comfort of taking in the car.
Compare with existing shock absorbing bushing, the first damp liquid working room among the present invention, the second damp liquid working room be the highest bears three times of atmospheric pressure, and therefore the damping performance of shock absorbing bushing of the present invention is stronger, more durable.
Though more than described embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these mode of executions under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. a shock absorbing bushing that is used for control arm comprises shell at least, is set in the fuse in the said shell, between said shell and said fuse, be used to flexibly connect the inner piece of said shell and said fuse; Radially be formed with the first damp liquid working room, the second damp liquid working room and connect the fluid passage of said first damp liquid working room and the said second damp liquid working room along said fuse between said inner piece and the said shell; It is characterized in that: be arranged with first cutting ferrule on the first end of said fuse, be provided with first sheath between the internal surface of said first cutting ferrule and said shell; Be arranged with second cutting ferrule on the second end of said fuse, be provided with second sheath between the internal surface of said second cutting ferrule and said shell.
2. shock absorbing bushing as claimed in claim 1 is characterized in that, said shell is provided with the outer skeleton that supports said inner piece in the inboard, and said first sheath is arranged between said first cutting ferrule and the said outer skeleton; Said second sheath is arranged between said second cutting ferrule and the said outer skeleton.
3. shock absorbing bushing as claimed in claim 2 is characterized in that, said fuse, said outer skeleton and the sulfuration of said inner piece are integrally formed structure.
4. shock absorbing bushing as claimed in claim 2 is characterized in that, offers groove on the said outer skeleton, and said groove forms said fluid passage.
5. shock absorbing bushing as claimed in claim 1 is characterized in that, the end of said first cutting ferrule is concordant with the said first end of said fuse; The end of said second cutting ferrule is concordant with the said the second end of said fuse.
6. shock absorbing bushing as claimed in claim 1 is characterized in that, offers mounting hole in the said fuse, offers restraining groove on the said mounting hole.
7. shock absorbing bushing as claimed in claim 1 is characterized in that the outer rim of said inner piece is provided with seal ring, the internal surface interference fit of said seal ring and said shell.
8. shock absorbing bushing as claimed in claim 1 is characterized in that, the shaft axis of said fuse and the shaft axis of said shell shift to install, and the shaft axis of said fuse is set size to the opposite direction skew one that receives force direction of said fuse.
9. shock absorbing bushing as claimed in claim 1 is characterized in that said setting is of a size of the 0.5-3 millimeter.
10. shock absorbing bushing as claimed in claim 1 is characterized in that, said inner piece is a rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105449536A CN102465990A (en) | 2010-11-15 | 2010-11-15 | Shock absorbing bushing used for control arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105449536A CN102465990A (en) | 2010-11-15 | 2010-11-15 | Shock absorbing bushing used for control arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102465990A true CN102465990A (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105449536A Pending CN102465990A (en) | 2010-11-15 | 2010-11-15 | Shock absorbing bushing used for control arm |
Country Status (1)
| Country | Link |
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| CN (1) | CN102465990A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141726A (en) * | 2013-05-10 | 2014-11-12 | 现代摩比斯株式会社 | Hydro bush |
| CN105736617A (en) * | 2016-04-06 | 2016-07-06 | 天纳克汽车工业(苏州)有限公司 | Composite type liner, shock absorber and manufacturing method of composite type liner |
| CN106347403A (en) * | 2015-07-21 | 2017-01-25 | 上海申通地铁集团有限公司 | Axle box node |
| CN110425247A (en) * | 2019-08-30 | 2019-11-08 | 株洲时代新材料科技股份有限公司 | The encapsulating method and structure of liquid cavity in a kind of liquid rubber composite node |
| CN110454537A (en) * | 2019-08-30 | 2019-11-15 | 株洲时代新材料科技股份有限公司 | A kind of split-type liquid rubber composite node stiffness tuning structure and method |
| CN110486412A (en) * | 2019-08-30 | 2019-11-22 | 株洲时代新材料科技股份有限公司 | A kind of the radial rigidity adjusting method and structure of liquid rubber composite node |
| CN110486413A (en) * | 2019-08-30 | 2019-11-22 | 株洲时代新材料科技股份有限公司 | A method of liquid cavity is formed by adding spacer sleeve in multi-clove type |
| WO2021238009A1 (en) * | 2020-05-27 | 2021-12-02 | 株洲时代新材料科技股份有限公司 | Hydraulic composite bushing, flow channel for same, and method for forming flow channel |
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| US5123634A (en) * | 1989-03-23 | 1992-06-23 | Firma Carl Freudenberg | Elastomeric sleeve spring with axially spaced spring bodies |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141726A (en) * | 2013-05-10 | 2014-11-12 | 现代摩比斯株式会社 | Hydro bush |
| CN106347403A (en) * | 2015-07-21 | 2017-01-25 | 上海申通地铁集团有限公司 | Axle box node |
| CN105736617A (en) * | 2016-04-06 | 2016-07-06 | 天纳克汽车工业(苏州)有限公司 | Composite type liner, shock absorber and manufacturing method of composite type liner |
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| CN110425247A (en) * | 2019-08-30 | 2019-11-08 | 株洲时代新材料科技股份有限公司 | The encapsulating method and structure of liquid cavity in a kind of liquid rubber composite node |
| CN110454537A (en) * | 2019-08-30 | 2019-11-15 | 株洲时代新材料科技股份有限公司 | A kind of split-type liquid rubber composite node stiffness tuning structure and method |
| CN110486412A (en) * | 2019-08-30 | 2019-11-22 | 株洲时代新材料科技股份有限公司 | A kind of the radial rigidity adjusting method and structure of liquid rubber composite node |
| CN110486413A (en) * | 2019-08-30 | 2019-11-22 | 株洲时代新材料科技股份有限公司 | A method of liquid cavity is formed by adding spacer sleeve in multi-clove type |
| WO2021238009A1 (en) * | 2020-05-27 | 2021-12-02 | 株洲时代新材料科技股份有限公司 | Hydraulic composite bushing, flow channel for same, and method for forming flow channel |
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Application publication date: 20120523 |