CN201437835U - Shock absorber - Google Patents
Shock absorber Download PDFInfo
- Publication number
- CN201437835U CN201437835U CN2009201333891U CN200920133389U CN201437835U CN 201437835 U CN201437835 U CN 201437835U CN 2009201333891 U CN2009201333891 U CN 2009201333891U CN 200920133389 U CN200920133389 U CN 200920133389U CN 201437835 U CN201437835 U CN 201437835U
- Authority
- CN
- China
- Prior art keywords
- dust
- vibration damper
- proof cover
- buffer body
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a shock absorber, which comprises a cylinder body, a piston rod, an outer coupling sleeve, a buffering body, a dustproof cover and a spring, wherein one end of the piston rod is inserted into the cylinder body and can move correspondingly to the cylinder body; the outer coupling sleeve is connected with the other end of the piston rod; the buffering body is sheathed on the piston rod and connected with the outer coupling sleeve; one end of the dustproof cover is embedded onto the buffering body, and the other end thereof extends freely and is sheathed on the cylinder body; the spring is sheathed at the outer end of the dustproof cover; one end of the spring is connected with the outer coupling sleeve, and the other end thereof is connected with the cylinder body; a connecting body connected with the buffering body is arranged along the periphery of the buffering body; the material of the connecting body is harder than that of the buffering body; and the dustproof cover is connected with the buffering body by the connecting body. Compared with the existing shock absorber, the dustproof cover of the shock absorber in the utility model is connected with the buffering body by the connecting body made of harder material, and the dustproof cover can not shift correspondingly to the buffering body during the downward moving of the dustproof cover along with the buffering body when a vehicle shocks, so that the outside sundry particles can not intrude into the interior of the shock absorber.
Description
[technical field]
The utility model relates to a kind of automobile vibration damper.
[background technique]
Suspension is the general name of all the power transmission connection sets between vehicle frame and the vehicle body (or wheel).The quality of its quality directly affects smoothness, the travelling comfort that car load travels.Although the suspension of Hyundai Motor has various structural type, generally form by elastic element, vibration damper and guide mechanism three parts, wherein, vibration damper is the most accurate parts.According to statistics, the oil spill rate in the vibration damper quality problems is high, main cause be vehicle in running, impurity such as mud, dust and the grains of sand are attacked into vibration damper inside, greatly damage connecting rod and oil sealing and finally cause leakage of oil.This wherein, it is that the peripheral guard block design assembling of vibration damper such as dust-proof cover is unreasonable that the part factor is arranged, and causes extraneous foreign material particle to invade easily.
A kind of car vibration damper of the prior art, this vibration damper comprise cylinder body, piston rod, dust-proof cover, spring, the combination of the spring seat of honour, bushing pipe combination and outer joint sleeve.Outer connection puts and is connected with bolt.One end of piston rod inserts in the cylinder body, and the other end is connected with the spring seat of honour; With the buffer body combination, buffer body one end is connected in the bushing pipe combination on the piston rod; Dust-proof cover comprises the body with an inner chamber, and the interior turn of bilge that is nested of body upper end and buffer body in the buffer body combination.This wherein, because the buffer body in the buffer body combination plays buffer function to vibration damper, when being compressed to limit position soon, plays in piston rod position-limiting action, so material is softer, so in the dust-proof cover upper end in turn of bilge and the buffer body combination softer the nested of buffer body of material will be soft the contact, simultaneously owing between dust-proof cover lower end and the cylinder barrel certain clearance being arranged.When vehicle generation vibrations dust-proof cover moves down, dust-proof cover will be offset, thereby such situation may take place: dust-proof cover lower end inner ring interferes with cylinder barrel on one side, it is big that another side and cylinder barrel gap become, cause extraneous foreign material particle to become general goal easily from the gap and invade, influenced the life-span of vibration damper.
[model utility content]
Technical problem to be solved in the utility model is the technological deficiency that enters vibration damper inside from the gap between dust-proof cover and the cylinder barrel easily at existing vibration damper external impurities particle, a kind of new vibration damper is provided, make that the external impurities particle is not easy to enter vibration damper inside from the gap between dust-proof cover and the cylinder barrel, prolong the working life of vibration damper.
In order to solve above-mentioned technical problem, the utility model provides a kind of vibration damper, comprise cylinder body, the piston rod that one end inserts in the described cylinder body and can move relative to cylinder body, the outer joint sleeve that is connected with the described piston rod the other end, be set on the piston rod and and interlock the buffer body that connects with outer the connection, one end is embedded on the buffer body and the other end freely extends and be set in dust-proof cover on the described cylinder body, and be sheathed on dust-proof cover outer end and the end spring that the other end links to each other with described cylinder body that links to each other with outer joint sleeve, wherein, outer periphery along buffer body is equipped with the connecting body that is connected with buffer body, the material of described connecting body is harder than buffer body, and described dust-proof cover is connected with buffer body by described connecting body.
Compare with existing vibration damper, the dust-proof cover of the utility model vibration damper is connected with buffer body by a connecting body than hard material, when vehicle generation vibrations dust-proof cover moves down with buffer body, dust-proof cover not relatively buffer body be offset, make extraneous foreign material particle can not invade the inside of vibration damper, prolonged the working life of vibration damper.
[description of drawings]
Fig. 1 is a vibration damper structural representation of the present utility model;
Fig. 2 is the vibration damper structural representation of prior art;
[embodiment]
In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, vibration damper comprises cylinder body 7, the piston rod 4 that one end inserts in the described cylinder body 7 and can move relative to cylinder body 7, the outer joint sleeve 1 that is connected with described piston rod 4 the other ends, be set on the piston rod 4 and the buffer body 2 that is connected with outer joint sleeve 1, one end is embedded on the buffer body 2 and the other end freely extends and be set in dust-proof cover 5 on the described cylinder body 7, and be sheathed on dust-proof cover 5 outer ends and the end spring 6 that the other end links to each other with described cylinder body 7 that links to each other with outer joint sleeve 1, wherein, outer periphery along buffer body 2 is equipped with the connecting body 3 that is connected with buffer body 2, the material of described connecting body 3 is harder than buffer body 2, and described dust-proof cover 5 is connected with buffer body 2 by described connecting body 3.
Described connecting body 3 is arranged on buffer body 2 axial neutral positions and locates, described connecting body 3 is provided with joint 31 towards an end of buffer body 2, described joint 31 is for protruding the semi-circle structure of end face, described buffer body 2 is provided with the groove 21 with described connecting body 3 interference fit, and described groove 21 holds the end face that described connecting body 3 is provided with joint 31.The bottom of described groove 21 is provided with the fitting recess 211 that cooperates described joint 31.When buffer body 2 with cylinder body 7 flexible collision took place, the impact force that groove 21 peripheries are subjected to acted on connecting body 3 evenly, makes connecting body 3 be difficult for relative buffer body 2 and is offset; Described connecting body 3 also is provided with and the dust-proof cover 5 airtight departments of assembly that cooperate 32, and described department of assembly 32 presents " L " type, cooperates with the end inwall that is connected with buffer body 2 of dust-proof cover 5, and department of assembly 32 cooperates with dust-proof cover 5 and prevents that introduced contaminants from entering vibration damper inside.
Described dust-proof cover 5, buffer body 2 can be formed by various padded coamings well known in the art, for example rubber, plastics, polyurethane etc.; And the material of connecting body 3 is preferably POM, claims match steel, Trane again.The hardness of POM material is greater than the hardness of rubber, plastics, polyurethane, when dust-proof cover 5 moves axially with buffer body 2 relative piston rods 4, dust-proof cover 5 not relatively buffer body 2 be offset, dust-proof cover 5 free end inner rings can not interfere with cylinder body 7, make extraneous foreign material particle can not invade the inside of vibration damper by the gap between dust-proof cover 5 and the cylinder body 7 yet.
Dust-proof cover is enclosed within on this piston rod 4 more loosely.And the gap between buffer body 2 and this piston rod 4 is less.When work, dust-proof cover 5 can be along the axial stretching of piston rod 4.The free end of described dust-proof cover 5 extends and is sleeved on the described cylinder body 7, and when work, dust-proof cover 5 axially moves outside cylinder body 7 along cylinder body 7, and, have certain interval between the outer periphery of this free end of dust-proof cover 5 and cylinder body 7 usually, be beneficial to heat radiation.
During use, usually outer joint sleeve 1 is installed on the vehicle body of vehicle, cylinder body 7 is installed on the torsion beam of vehicle, and in cylinder body 7 injection pressure oil.When vehicle is given a shock, spring 6 compressions, make piston rod 4 in cylinder body 7, do piston motion, pressure oil flows into another inner chamber by narrow hole from an inner chamber of cylinder body 7 repeatedly, the intermolecular friction of friction between pore wall and pressure oil and fluid has just formed the damping force to the vehicle frame vibrations, make the vibration energy of vehicle frame, vehicle body be converted into heat energy, and absorbed by fluid and housing, be dispersed in the atmosphere then, and flexible collision takes place with cylinder body 7 in buffer body 2, thereby vibration damper can be eliminated vibrations.
Compare with existing vibration damper, the dust-proof cover 5 of the utility model vibration damper is connected with buffer body 2 by a connecting body 3 than hard material, when vehicle generation vibrations dust-proof cover 5 moves down with buffer body 2, dust-proof cover 5 not relatively buffer body 2 be offset, make extraneous foreign material particle can not invade the inside of vibration damper, prolonged the working life of vibration damper.
The above only is preferred embodiment of the present utility model, not in order to restriction the utility model, all any modifications of being done within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all should be included in protection domain of the present utility model.
Claims (6)
1. vibration damper, comprise cylinder body, the piston rod that one end inserts in the described cylinder body and can move relative to cylinder body, the outer joint sleeve that is connected with the described piston rod the other end, be set on the piston rod and and interlock the buffer body that connects with outer the connection, one end is embedded on the buffer body and the other end freely extends and be set in dust-proof cover on the described cylinder body, and be sheathed on dust-proof cover outer end and the end spring that the other end links to each other with described cylinder body that links to each other with outer joint sleeve, it is characterized in that: the outer periphery along buffer body is equipped with the connecting body that is connected with buffer body, the material of described connecting body is harder than buffer body, and described dust-proof cover is connected with buffer body by described connecting body.
2. according to the described vibration damper of claim 1, it is characterized in that: described connecting body is arranged on the axial place, neutral position of buffer body.
3. according to the described vibration damper of claim 2, it is characterized in that: described connecting body is provided with joint towards an end of buffer body, and described joint is for protruding the semi-circle structure of end face.
4. according to the described vibration damper of claim 3, it is characterized in that: described buffer body is provided with the groove with described connecting body interference fit, and described groove holds the end face that described connecting body is provided with joint.
5. according to the described vibration damper of claim 4, it is characterized in that: the bottom of described groove is provided with the fitting recess that cooperates described joint.
6. according to the described vibration damper of claim 2, it is characterized in that: described connecting body is provided with and the airtight department of assembly that cooperates of dust-proof cover, and described department of assembly presents " L " type, cooperates with the end inwall that is connected with buffer body of dust-proof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201333891U CN201437835U (en) | 2009-06-30 | 2009-06-30 | Shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201333891U CN201437835U (en) | 2009-06-30 | 2009-06-30 | Shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437835U true CN201437835U (en) | 2010-04-14 |
Family
ID=42399809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201333891U Expired - Fee Related CN201437835U (en) | 2009-06-30 | 2009-06-30 | Shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343957A (en) * | 2019-08-09 | 2021-02-09 | 现代自动车株式会社 | Pillar assembly for vehicle |
-
2009
- 2009-06-30 CN CN2009201333891U patent/CN201437835U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343957A (en) * | 2019-08-09 | 2021-02-09 | 现代自动车株式会社 | Pillar assembly for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20170630 |