CN204099480U - A kind of dust prevention of vibration absorber structure and vibration damper - Google Patents
A kind of dust prevention of vibration absorber structure and vibration damper Download PDFInfo
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- CN204099480U CN204099480U CN201420419979.1U CN201420419979U CN204099480U CN 204099480 U CN204099480 U CN 204099480U CN 201420419979 U CN201420419979 U CN 201420419979U CN 204099480 U CN204099480 U CN 204099480U
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- absorber structure
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Abstract
The utility model provides a kind of dust prevention of vibration absorber structure and vibration damper, and wherein, described dust prevention of vibration absorber structure comprises dust-proof cover and sealing back-up ring; Described sealing back-up ring cylindrically, described sealing back-up ring through vibration damper piston rod and be pressed on one end of oil storage cylinder; Ring-type dust-proof cushion is fixedly connected with above described sealing back-up ring, described ring-type dust-proof cushion is on the piston rod sheathed and keep certain gap with piston rod, and the outward edge of described ring-type dust-proof cushion extends the sealing outward edge of back-up ring and the outward edge of described ring-type dust-proof cushion extends the outside of oil storage cylinder.According to dust prevention of vibration absorber structure of the present utility model, solve existing dust-proof cover easy and oil storage cylinder in vibration damper compression and recuperation to produce and to rub and dust, particle etc. easily enter dust-proof cover, thus cause vibration damper surface abrasion and the dissatisfactory problem of dust-proof effect.
Description
Technical field
The utility model relates to a kind of dust prevention of vibration absorber structure and vibration damper.
Background technique
Vibration damper is mechanical parts accurate and the most complicated in automobile suspension system, its effect accelerates to relax and the shock and vibration caused by ground that decay, transmit the various force and moments acted between wheel and vehicle frame (or vehicle body) simultaneously, the quality of its quality directly affects smoothness, operational stability and the travelling comfort that car load travels, so vibration damper is very strict to operating environment requirements.Damper dust-proof cover is very important parts in vibration damper assembly, its as be can effectively prevent from mud, sand grains, dust etc. from corroding causing vibration damper leakage of oil, abnormal sound.
Existing a kind of dust prevention of vibration absorber structure, as shown in Figure 1, it comprises dust-proof cover 10, sealing back-up ring 20 and oil sealing 30, described dust-proof cover 10 is arranged on the periphery of outer and piston rod 50 exposed parts of the oil storage cylinder 40 of vibration damper, the upper end of described dust-proof cover 10 is fixed on the upper support of vibration damper, and the lower end of described dust-proof cover 10 naturally droops, simultaneously, in order to reach good dust-proof effect, the length of dust-proof cover 10 usually can be increased; In addition, increasing described dust-proof cover 10 lower ending opening size to improve the situation of phase mutual friction between described dust-proof cover 10 with vibration damper, like this, making to be formed between described dust-proof cover 10 and vibration damper certain gap; Described sealing back-up ring 20 cylindrically and the both ends open of described sealing back-up ring 20, described sealing back-up ring 20 passes piston rod 50 and oil storage cylinder 40 interference fit of vibration damper, and described oil sealing 30 is supported between oil storage cylinder 40 inwall of vibration damper and piston rod 50 with seal shock-proof device.
But there is following defect in the design of above-mentioned dust-proof cover 10:
1) material of described dust-proof cover 10 is generally rubber or plastics, its hardness is lower, and the length of described dust-proof cover 10 is longer, thus cause the straightness accuracy of described dust-proof cover 10 poor, like this, in the process that vibration damper compresses and restores, described dust-proof cover 10 meeting and oil storage cylinder 40 outer surface of vibration damper produce the phenomenon of phase mutual friction, thus cause vibration damper surface abrasion, scratch causes situations such as getting rusty then, have impact on outward appearance and the working life of vibration damper.
2) in addition, described dust-proof cover 10 lower ending opening size is increased in order to improve described dust-proof cover 10 to produce the phenomenon of phase mutual friction with oil storage cylinder 40 outer surface of vibration damper, although certain gap can be formed between described dust-proof cover 10 and vibration damper like this, but make the dust-proof effect of vibration damper not ideal enough, such as dust, granule etc. are easy to enter in described dust-proof cover 10, thus cause piston rod 50 damaged surfaces then to cause the situations such as gas leakage, oil impregnate and leakage of oil, directly affect usability and the working life of vibration damper.
Model utility content
Technical problem to be solved in the utility model produces for existing dust-proof cover easy and oil storage cylinder in vibration damper compression and recuperation to rub and dust, particle etc. easily enter described dust-proof cover, thus cause vibration damper surface abrasion and the dissatisfactory problem of dust-proof effect, a kind of dust prevention of vibration absorber structure is provided.
It is as follows that the utility model solves the problems of the technologies described above adopted technological scheme:
A kind of dust prevention of vibration absorber structure is provided, comprises dust-proof cover and sealing back-up ring; Described sealing back-up ring cylindrically, described sealing back-up ring through vibration damper piston rod and be pressed on one end of oil storage cylinder; Ring-type dust-proof cushion is fixedly connected with above described sealing back-up ring, described ring-type dust-proof cushion is on the piston rod sheathed and keep certain gap with piston rod, and the outward edge of described ring-type dust-proof cushion extends the outward edge of described sealing back-up ring and the outward edge of described ring-type dust-proof cushion extends the outside of oil storage cylinder.
Further, described dust-proof cover is arranged on the periphery of the outer and piston rod exposed parts of the oil storage cylinder of vibration damper.
Further, the inward flange of described ring-type dust-proof cushion extends the inward flange of described sealing back-up ring.
Further, described ring-type dust-proof cushion and sealing back-up ring are metalwork.
Further, described ring-type dust-proof cushion is linked together by the mode of welding with sealing back-up ring.
Further, the mode of described welding is resistance welding or arc-welding.
Further, described sealing back-up ring comprises the cylinder of two ends open and is connected to the plectane at described cylinder one end open place, and the middle part of described plectane offers the through hole supplying the piston rod of vibration damper to pass.
Further, the internal surface of described cylinder and the outer circumferential face interference fit of oil storage cylinder, fit in the internal surface of described plectane and a side end face of oil storage cylinder.
Further, also comprise oil sealing, described oil sealing is supported between the oil storage cylinder inwall of vibration damper and piston rod.
According to dust prevention of vibration absorber structure of the present utility model, add a ring-type dust-proof cushion, described ring-type dust-proof cushion is fixedly connected on above described sealing back-up ring, described ring-type dust-proof cushion is on the piston rod sheathed and keep certain gap with piston rod, the outward edge of described ring-type dust-proof cushion extends the outward edge of described sealing back-up ring and the outward edge of described ring-type dust-proof cushion extends the outside of oil storage cylinder, like this, separated by the oil storage cylinder outer surface of described ring-type dust-proof cushion by described dust-proof cover and vibration damper, avoid described dust-proof cover with the phenomenon producing phase mutual friction in vibration damper compression and recuperation with the oil storage cylinder outer surface of vibration damper, simultaneously, the gap reducing described dust-proof cover and sealing back-up ring makes the inside of dust and particle described dust-proof cover more difficult to get access, effectively ensure the dust-proof effect of vibration damper, thus improve service behaviour and the working life of vibration damper, solve existing dust-proof cover easy and oil storage cylinder in vibration damper compression and recuperation to produce and rub and dust, particles etc. easily enter described dust-proof cover, thus cause vibration damper surface abrasion and the dissatisfactory problem of dust-proof effect.
In addition, the utility model additionally provides a kind of vibration damper, and it comprises above-mentioned dust prevention of vibration absorber structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing dust prevention of vibration absorber structure;
Fig. 2 is the structural representation of the dust prevention of vibration absorber structure that the utility model one embodiment provides;
Fig. 3 is A place enlarged diagram in Fig. 2;
Fig. 4 is the structural representation of its ring-type dust-proof cushion of dust prevention of vibration absorber structure that the utility model one embodiment provides.
Reference character in Figure of description is as follows:
1, dust-proof cover; 2, back-up ring is sealed; 3, oil sealing; 4, oil storage cylinder; 5, piston rod; 6, ring-type dust-proof cushion; 21, cylinder; 22, plectane; 31, sealing lip; 32, body; 33, rubber body; 61, outward edge; 62, inward flange; 221, through hole; 311, main lip; 312, secondary lip.
Embodiment
The technical problem solved to make the utility model, technological scheme and beneficial effect are clearly understood, below in conjunction with drawings and Examples, are described in further detail the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Please with reference to Fig. 2, Fig. 3 and Fig. 4, the utility model one embodiment provides a kind of dust prevention of vibration absorber structure, comprises dust-proof cover 1 and sealing back-up ring 2; Described sealing back-up ring 2 cylindrically, described sealing back-up ring 2 through vibration damper piston rod 5 and be pressed on one end of oil storage cylinder 4; Ring-type dust-proof cushion 6 is fixedly connected with above described sealing back-up ring 2, described ring-type dust-proof cushion 6 to be set on piston rod 5 and to keep certain gap with piston rod 5, and the outward edge 61 of described ring-type dust-proof cushion 6 extends the outward edge of described sealing back-up ring 2 and the outward edge 61 of described ring-type dust-proof cushion 6 extends the outside of oil storage cylinder 4.
In the present embodiment, described dust-proof cover 1 is arranged on the periphery of outer and piston rod 5 exposed parts of the oil storage cylinder 4 of vibration damper, and wherein, described dust-proof cover 1 upper end is connected with vibration damper supports.Like this, the dust-proof cover 1 that the part peripheral exposed that outer and piston rod 5 stretches out in the oil storage cylinder 4 of vibration damper at the oil storage cylinder 4 of vibration damper is arranged, plays and effectively prevents grieshoch from entering effect in the oil storage cylinder 4 of vibration damper.
In the present embodiment, the inward flange of described ring-type dust-proof cushion 6 extends the inward flange of described sealing back-up ring 2.Play further and effectively prevent grieshoch from entering effect in the oil storage cylinder 4 of vibration damper.
In the present embodiment, described sealing back-up ring 2 and ring-type dust-proof cushion 6 are metalwork.Described sealing back-up ring 2 is made for metallic material, the such as material such as steel, alloyed steel.The rigidity of metal sealing back-up ring 2 is large, can fixed support ring-type dust-proof cushion 6 well.In addition, ring-type dust-proof cushion 6 all can be subject to usually the impact of buffer of damper body in shock absorber structure, it is stressed larger, advises that described ring-type dust-proof cushion 6 adopts metallic material to make, such as, can adopt the material such as steel, alloyed steel.
In the present embodiment, described ring-type dust-proof cushion 6 is linked together by the mode of welding with sealing back-up ring 2.
In the present embodiment, the mode of described welding is resistance welding or arc-welding.As the preferred mode of one, the mode of described welding is resistance welding or arc-welding, and other Placements are also passable certainly, if can ensure described ring-type dust-proof cushion 6 to be fixedly connected on described sealing back-up ring 2 above.
In the present embodiment, described sealing back-up ring 2 comprises the cylinder 21 of two ends open and is connected to the plectane 22 at described cylinder 21 one end open place, and the middle part of described plectane 22 offers the through hole 221 supplying the piston rod 5 of vibration damper to pass.
In the present embodiment, the internal surface of described cylinder 21 and the outer circumferential face interference fit of oil storage cylinder 4, fit in the internal surface of described plectane 22 and a side end face of oil storage cylinder 4.
In the present embodiment, described oil sealing 3 is supported between oil storage cylinder 4 inwall of vibration damper and piston rod 5, and described oil sealing 3 is fixed on one end being provided with described sealing back-up ring 2 of oil storage cylinder 4.The structure of described oil sealing 3 has a variety of, as the preferred mode of one, the inner side of described oil sealing 3 is formed with the sealing lip 31 contacted with piston rod 5 slipper seal, described oil sealing 3 also comprises body 32 and wraps up the rubber body 33 of described body 32, described body 32 is fixed on one end being provided with described sealing back-up ring 2 of oil storage cylinder 4, described rubber body 33 forms described sealing lip 31 near the side of piston rod 5, and described sealing lip 31 is included in axially spaced apart from each other main lip 311 and the secondary lip 312 of piston rod 5.
In the present embodiment, also comprise guide sleeve (not shown), described guide sleeve is supported between oil storage cylinder 4 inwall of vibration damper and piston rod 5, and to support oil sealing 3, namely described guide sleeve is along the body 32 of piston rod 5 axially support oil sealing 3.
Concrete assembling and working procedure are described below: be first fixedly connected on by ring-type dust-proof cushion 6 above sealing back-up ring 2, then by the sealing back-up ring 2 that is connected with ring-type dust-proof cushion 6 through the piston rod 5 of vibration damper with oil storage cylinder 4 interference fit with seal shock-proof device, outward edge 61 due to ring-type dust-proof cushion 6 extends the sealing outward edge of back-up ring 2 and the outward edge 61 of ring-type dust-proof cushion 6 extends the outside of oil storage cylinder 4, when ring-type dust-proof cushion 6 be fixedly connected on sealing back-up ring 2 above after, it is outer and stretch out the outside of oil storage cylinder 4 that ring-type dust-proof cushion 6 stretches out sealing back-up ring 2, like this, by ring-type dust-proof cushion 6, dust-proof cover 1 and oil storage cylinder 4 outer surface are separated, simultaneously, the gap reducing dust-proof cover 1 and sealing back-up ring 2 makes the inside of dust and particle dust-proof cover 1 more difficult to get access, effectively ensure the dust-proof effect of vibration damper, like this, in vibration damper compression and recuperation, dust-proof cover 1 can be avoided to produce phase mutual friction and dust with oil storage cylinder 4 outer surface of vibration damper, particles etc. easily enter the phenomenon of described dust-proof cover.
According to the dust prevention of vibration absorber structure of the utility model above-described embodiment, add a ring-type dust-proof cushion, described ring-type dust-proof cushion is fixedly connected on above described sealing back-up ring, described ring-type dust-proof cushion is on the piston rod sheathed and keep certain gap with piston rod, the outward edge of described ring-type dust-proof cushion extends the outward edge of described sealing back-up ring and the outward edge of described ring-type dust-proof cushion extends the outside of oil storage cylinder like this, separated by the oil storage cylinder outer surface of described ring-type dust-proof cushion by described dust-proof cover and vibration damper, avoid described dust-proof cover with the phenomenon producing phase mutual friction in vibration damper compression and recuperation with the oil storage cylinder outer surface of vibration damper, simultaneously, the gap reducing described dust-proof cover and sealing back-up ring makes the inside of dust and particle described dust-proof cover more difficult to get access, effectively ensure the dust-proof effect of vibration damper, thus improve service behaviour and the working life of vibration damper, solve existing dust-proof cover easy and oil storage cylinder in vibration damper compression and recuperation to produce and rub and dust, particles etc. easily enter described dust-proof cover, thus cause vibration damper surface abrasion and the dissatisfactory problem of dust-proof effect.
In addition, the utility model additionally provides a kind of vibration damper, and it comprises above-mentioned dust prevention of vibration absorber structure.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a dust prevention of vibration absorber structure, comprises dust-proof cover and sealing back-up ring; Described sealing back-up ring cylindrically, described sealing back-up ring through vibration damper piston rod and be pressed on one end of oil storage cylinder; It is characterized in that, ring-type dust-proof cushion is fixedly connected with above described sealing back-up ring, described ring-type dust-proof cushion is on the piston rod sheathed and keep certain gap with piston rod, and the outward edge of described ring-type dust-proof cushion extends the outward edge of described sealing back-up ring and the outward edge of described ring-type dust-proof cushion extends the outside of oil storage cylinder.
2. dust prevention of vibration absorber structure as claimed in claim 1, is characterized in that, described dust-proof cover is arranged on the periphery of the outer and piston rod exposed parts of the oil storage cylinder of vibration damper.
3. dust prevention of vibration absorber structure as claimed in claim 1, it is characterized in that, the inward flange of described ring-type dust-proof cushion extends the inward flange of described sealing back-up ring.
4. dust prevention of vibration absorber structure as claimed in claim 1, is characterized in that, described ring-type dust-proof cushion and sealing back-up ring are metalwork.
5. dust prevention of vibration absorber structure as claimed in claim 4, is characterized in that, described ring-type dust-proof cushion is linked together by the mode of welding with sealing back-up ring.
6. dust prevention of vibration absorber structure as claimed in claim 5, it is characterized in that, the mode of described welding is resistance welding or arc-welding.
7. dust prevention of vibration absorber structure as claimed in claim 1, is characterized in that, described sealing back-up ring comprises the cylinder of two ends open and is connected to the plectane at described cylinder one end open place, and the middle part of described plectane offers the through hole supplying the piston rod of vibration damper to pass.
8. dust prevention of vibration absorber structure as claimed in claim 7, it is characterized in that, the internal surface of described cylinder and the outer circumferential face interference fit of oil storage cylinder, fits in the internal surface of described plectane and a side end face of oil storage cylinder.
9. dust prevention of vibration absorber structure as claimed in claim 1, it is characterized in that, also comprise oil sealing, described oil sealing is supported between the oil storage cylinder inwall of vibration damper and piston rod.
10. a vibration damper, is characterized in that, comprises the dust prevention of vibration absorber structure described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419979.1U CN204099480U (en) | 2014-07-28 | 2014-07-28 | A kind of dust prevention of vibration absorber structure and vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419979.1U CN204099480U (en) | 2014-07-28 | 2014-07-28 | A kind of dust prevention of vibration absorber structure and vibration damper |
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| Publication Number | Publication Date |
|---|---|
| CN204099480U true CN204099480U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420419979.1U Active CN204099480U (en) | 2014-07-28 | 2014-07-28 | A kind of dust prevention of vibration absorber structure and vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099480U (en) |
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2014
- 2014-07-28 CN CN201420419979.1U patent/CN204099480U/en active Active
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |