CN202790294U - Piston-rod guided automobile shock absorber - Google Patents
Piston-rod guided automobile shock absorber Download PDFInfo
- Publication number
- CN202790294U CN202790294U CN 201220411624 CN201220411624U CN202790294U CN 202790294 U CN202790294 U CN 202790294U CN 201220411624 CN201220411624 CN 201220411624 CN 201220411624 U CN201220411624 U CN 201220411624U CN 202790294 U CN202790294 U CN 202790294U
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- piston
- piston rod
- frame
- guide holder
- shock absorber
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- Expired - Fee Related
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Abstract
The utility model discloses a piston-rod guided automobile shock absorber, belongs to the field of automobile accessories and solves the problems that poor sealing performance, poor damping effect and short service life of the shock absorber are caused because a sealing ring is seriously worn and the wear between a piston and the inner wall of the casing is aggravated due to the fact that the traditional automobile shock absorber is inclined relative to a shock absorber casing to a certain degree during use. The automobile shock absorber disclosed by the utility model comprises a sealed casing and a piston rod, wherein a wear-resistant guiding seat is arranged in the casing; and the piston rod penetrates through the guiding seat. According to the automobile shock absorber disclosed by the utility model, the wear between the piston rod and the sealing ring can be reduced, the wear between the piston and the inner wall of the casing is reduced, sealing performances are improved and the service life of the shock absorber is prolonged.
Description
Technical field
The utility model belongs to the automobile fitting field, and saying of having relates to a kind of piston rod guiding automobile damper.
Background technique
In the vehicle traveling process, suspension system produces vibration because elastic element is hit, and for improving vehicle running smoothness, is installed in parallel vibration damper with elastic element in the suspension, is attenuation vibration.Institute's employing vibration damper mostly is hydra-shock absorber in the automobile suspension system, its working principle is when being subjected to vibration relative movement to occur between vehicle frame (or vehicle body) and vehicle bridge, piston in the vibration damper moves up and down, fluid in the vibration damper chamber just flows in another chamber through different holes from a chamber repeatedly, the at this moment friction between hole wall and fluid and the intermolecular interior friction of fluid forms damping force to vibration, thereby reaches the effect of damping.
Application number: 201120212428.4, notice of authorization number: the hydraulic type automobile vibration damper of CN 202140498 U comprises the frame of sealing, valve formula oil hole and needle-like outlet valve are housed on the frame, be provided with piston and piston rod in the frame, be evenly equipped with a plurality ofly vertically through the discharge orifice of piston on the piston, the top of the frame of sealing is passed in the upper end on the piston rod; Bottom in the frame is put into flexible thing and netted lid from bottom to up, is full of fluid between piston and the netted lid; The bottom of the frame outside of the top of piston rod and sealing is provided with retaining ring respectively; Be equipped with an one-way valve on each discharge orifice, the position of the one-way valve on per two adjacent discharge orifices is top and bottom (discharge orifice is the apical position that one-way valve is located at discharge orifice, and another discharge orifice then is the place, bottom that one-way valve is located at discharge orifice) that is arranged on alternately the place discharge orifice.This hydra-shock absorber structure is that market uses widely vibration damper.
This automobile absorber is in the process of using, and owing to jolting of road surface, particularly in the situation of the non-constant of pavement behavior, piston rod certain inclination can occur with respect to the vibration damper housing.Aggravated the wearing and tearing of seal ring, caused sealability bad, the simultaneously wearing and tearing of piston and inner walls also can aggravate, and cause damping effect bad, have shortened the working life of vibration damper.
The model utility content
Piston rod certain inclination can occur with respect to the vibration damper housing in the existing automobile absorber using process in order to overcome, cause ring wear serious, the wearing and tearing of aggravation piston and inner walls, cause sealability bad, damping effect is poor, vibration damper short shortcoming in working life, the purpose of this utility model is to provide a kind of piston rod guiding automobile damper.
The utility model is to solve the problems of the technologies described above the technological scheme that adopts to be:
A kind of piston rod guiding automobile damper comprises the frame of sealing, and piston rod is characterized in that: in the described frame guide holder is installed, described guide holder is provided with endoporus, and described piston rod passes described endoporus.
Described guide holder is fixedly mounted in the frame.
Described guide holder and piston rod adopt transition fit.
Described guide holder inner hole wall scribbles wearing layer.
Described guide holder is provided with the through hole for circulation hydraulic oil.
Described through hole is distributed on the guide holder.
Be provided with the needle-like outlet valve on the described frame; Be provided with piston in the described frame, be evenly equipped with many discharge orifices to connecting on the piston.
The top of frame is passed in the upper end of described piston rod.
Bottom in the described frame is put into flexible thing and netted lid from bottom to up, is full of hydraulic oil between piston and the netted lid; The bottom of the top of piston rod and frame outside is equipped with retaining ring.Be equipped with an one-way valve on each discharge orifice, the position of the one-way valve on each discharge orifice is top or the bottom that is arranged on alternately discharge orifice.
Compared with prior art, the utlity model has following technique effect:
One, vibration damper of the present utility model is provided with guide holder in frame, piston rod passes guide holder, in the process of using, piston rod is by piston and guide holder guiding, the problem that piston rod can not occur tilting with respect to frame, reduce the wearing and tearing of piston rod and seal ring, so that sealability is more stable, increased the working life of seal ring.
Two, vibration damper of the present utility model, piston rod can not occur tilting with respect to frame, so that piston and frame inner wall abrasion reduce, has increased the effect of vibration damper, has increased simultaneously the working life of piston.
Three, vibration damper of the present utility model, guide holder are provided with the through hole for circulation hydraulic oil, so that the running of hydraulic power oil of guide holder when can not affect vibration damper work guaranteed the normal operation of vibration damper.
Description of drawings
The sectional view of Fig. 1 the utility model piston rod guiding automobile damper.
Fig. 2 is the structural representation of piston rod guiding automobile damper.
Mark among the figure: 1 is retaining ring, and 2 is piston rod, and 3 is valve formula oil hole, and 4 is one-way valve, and 5 is piston, and 6 is frame, and 7 is netted lid, and 8 is the elasticity thing, and 9 is hydraulic oil, and 10 is discharge orifice, and 11 is guide holder, and 12 is the needle-like outlet valve.
Embodiment
The utility model will be further described below in conjunction with the drawings and the specific embodiments.
The piston rod guiding automobile damper comprises the frame of sealing, and piston rod is equipped with guide holder 11 in the frame 6; Described guide holder is provided with endoporus, and piston rod 2 passes described endoporus.
Guide holder is fixedly mounted in the frame.The thickness of guide holder is 10-30mm.
Guide holder and piston rod adopt transition fit.
The guide holder inner hole wall scribbles wearing layer.
Guide holder is provided with the through hole for circulation hydraulic oil.Through hole is circular, square, rhombus, ellipse or fan-shaped.Preferentially select circle.
Through hole is evenly distributed on the guide holder, and the through hole number is set to 2-20.
The diameter of through hole is 2-10mm.
The guide holder endoporus carries out chamfered.
Be provided with needle-like outlet valve 12 on the frame 6; Be provided with piston 5 in the frame 6, be evenly equipped with many discharge orifices 10 to connecting on the piston 5; The top of frame 6 is passed in the upper end of piston rod 2; Bottom in the frame 6 is put into flexible thing 8 and netted lid 7 from bottom to up, is full of hydraulic oil 9 between piston 5 and the netted lid 7; The bottom of the top of piston rod 2 and frame 6 outsides is equipped with retaining ring 1; Be equipped with an one-way valve 4 on each discharge orifice 10, the position of the one-way valve 4 on each discharge orifice 10 is top or the bottom that is arranged on alternately discharge orifice 10.
Embodiment 1:
The utility model piston of automobile rod guidance is 20mm to the guide holder thickness of automobile absorber.The through hole that is used for circulation hydraulic oil is circular, and the number of through hole is 6, and is evenly distributed on the guide holder, and the diameter of through hole is 6mm.
Working procedure of the present utility model is: when piston 5 moves downward, the hydraulic oil 9 of piston 5 bottoms is because be under pressure increase in the vibration damper, the one-way valve 4 of discharge orifice 10 upper ends is opened, hydraulic oil 9 flow into the top of piston 5 through discharge orifice 10 from piston 5 bottoms, simultaneously piston 5 is produced damping.In the process that piston rod moves up and down, under the acting in conjunction of piston and guide holder, prevent in use that piston rod produces, the wearing and tearing Sealing.Simultaneously, also can alleviate the wearing and tearing of piston rod and frame inwall.
Claims (10)
1. piston rod guiding automobile damper comprises the frame of sealing, and piston rod is characterized in that: in the described frame guide holder is installed; Described guide holder is provided with endoporus, and described piston rod passes described endoporus.
2. automobile absorber according to claim 1, it is characterized in that: described guide holder is fixedly mounted in the frame.
3. automobile absorber according to claim 1 is characterized in that: described guide holder and piston rod employing transition fit.
4. automobile absorber according to claim 1, it is characterized in that: described guide holder inner hole wall scribbles wearing layer.
5. automobile absorber according to claim 1 is characterized in that: described guide holder is provided with the through hole for circulation hydraulic oil.
6. automobile absorber according to claim 5, it is characterized in that: described through hole is distributed on the guide holder.
7. automobile absorber according to claim 1 is characterized in that: be provided with the needle-like outlet valve on the described frame; Be provided with piston in the described frame, be evenly equipped with many discharge orifices to connecting on the piston.
8. automobile absorber according to claim 1, it is characterized in that: the top of frame is passed in the upper end of described piston rod.
9. automobile absorber according to claim 1 is characterized in that: the bottom in the described frame is put into flexible thing and netted lid from bottom to up, is full of hydraulic oil between piston and the netted lid; The bottom of the top of piston rod and frame outside is equipped with retaining ring.
10. automobile absorber according to claim 1, it is characterized in that: be equipped with an one-way valve on each discharge orifice, the position of the one-way valve on each discharge orifice is top or the bottom that is arranged on alternately discharge orifice.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411624 CN202790294U (en) | 2012-08-20 | 2012-08-20 | Piston-rod guided automobile shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411624 CN202790294U (en) | 2012-08-20 | 2012-08-20 | Piston-rod guided automobile shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790294U true CN202790294U (en) | 2013-03-13 |
Family
ID=47817560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220411624 Expired - Fee Related CN202790294U (en) | 2012-08-20 | 2012-08-20 | Piston-rod guided automobile shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790294U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179553A (en) * | 2015-09-28 | 2015-12-23 | 张育华 | Oil-gas combined shock absorption, lifting and stabilizing device for motor vehicle |
| CN108506404A (en) * | 2018-04-18 | 2018-09-07 | 常州格林电力机械制造有限公司 | A kind of large hydraulic damper |
| CN108506403A (en) * | 2018-04-18 | 2018-09-07 | 常州格林电力机械制造有限公司 | A kind of large hydraulic damper |
-
2012
- 2012-08-20 CN CN 201220411624 patent/CN202790294U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179553A (en) * | 2015-09-28 | 2015-12-23 | 张育华 | Oil-gas combined shock absorption, lifting and stabilizing device for motor vehicle |
| CN108506404A (en) * | 2018-04-18 | 2018-09-07 | 常州格林电力机械制造有限公司 | A kind of large hydraulic damper |
| CN108506403A (en) * | 2018-04-18 | 2018-09-07 | 常州格林电力机械制造有限公司 | A kind of large hydraulic damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130820 |