CN201963797U - Piston of automobile shock absorber - Google Patents
Piston of automobile shock absorber Download PDFInfo
- Publication number
- CN201963797U CN201963797U CN2011200190031U CN201120019003U CN201963797U CN 201963797 U CN201963797 U CN 201963797U CN 2011200190031 U CN2011200190031 U CN 2011200190031U CN 201120019003 U CN201120019003 U CN 201120019003U CN 201963797 U CN201963797 U CN 201963797U
- Authority
- CN
- China
- Prior art keywords
- piston
- throttle
- throttle orifice
- shock absorber
- trapped fuel
- 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
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 14
- 230000035939 shock Effects 0.000 title abstract description 5
- 239000000446 fuel Substances 0.000 claims description 19
- 238000013016 damping Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a piston of an automobile shock absorber, which comprises a piston body (3) with a throttle plate (2). A plurality of throttle orifices (1) are evenly distributed on the throttle plate (2) along the circumferential direction; the outer end of each throttle orifice (1) is provided with an oil storage groove (4); the oil storage grooves (4) are communicated with the throttle orifices (1); and the cross sectional area of each oil storage groove (4) is bigger than that of each throttle orifice (1). After the structure is adopted, through oil stored in the parts of the oil storage grooves (4), which are more than the cross sections of the throttle orifices, the shock absorber is prevented from the phenomenon of idle running under the conditions of high damping force and high turnover, and thereby, the shock absorber is also prevented from generating an abnormal sound.
Description
Technical field
The utility model relates to the auto parts and components field, specifically is a kind of piston that is used for the automobile absorber of automobile shockproof system.
Background technique
Automobile is through uneven road surface the time, though the shock-absorbing spring in the shockproof system can filter the vibrations on road surface, spring self also has to-and-fro motion, and vibration damper is used for suppressing this spring jump.The structure of vibration damper is that the piston rod that has piston inserts in the tube, is full of oil in tube.Throttle orifice is arranged on the piston, make that the oil in two-part space that is separated by piston can complement each other.The working principle of vibration damper is when being subjected to vibrations 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 intermolecular interior friction of friction between hole wall and fluid and fluid at this moment forms damping force to vibrations, making the thump Conversion of energy is fluid heat energy, is absorbed by vibration damper to be dispersed in the atmosphere again.
At present, the throttle orifice on the shock absorber piston of the prior art generally adopts the circular hole design, and along the circumferential direction evenly distributes.But there is following shortcoming in the piston of this structure: because damping force is quantity and big or small deciding by throttle orifice, therefore for the especially big product of oily circulation area, owing to be subjected to the restriction of piston area, even if distribute throttle orifice to greatest extent, the excessive phenomenon of damping force also can appear, like this, finally cause automobile vibration damper generation idle running when starting, thereby produce abnormal sound.
The model utility content
Technical problem to be solved in the utility model is, thereby a kind of piston that the vibration damper idle running avoids producing the automobile absorber of abnormal sound of avoiding producing is provided.
For solving the problems of the technologies described above, the auto absorber piston that the utility model provides, comprise piston only with Rectifier plate, along the circumferential direction evenly be distributed with a plurality of throttle orifices on the described Rectifier plate, the outer end of described each throttle orifice has the trapped fuel groove, described trapped fuel groove communicates with throttle orifice, and the cross-section area of trapped fuel groove is greater than the cross-section area of throttle orifice.
After adopting above structure, the utility model compared with prior art, have the following advantages: owing to be provided with the trapped fuel groove that communicates with throttle orifice in the end of each throttle orifice, the cross-section area of trapped fuel groove is greater than the cross-section area of throttle orifice, like this, by that part of trapped fuel of trapped fuel groove, make vibration damper under the situation of big damping force and big discharge value, avoid producing the idle running phenomenon, thereby also avoided vibration damper to produce abnormal sound greater than the throttle orifice cross section.
As improvement, the outward edge of described trapped fuel groove connects the outward edge to piston only.After adopting this structure, strengthen the discharge value of throttle orifice, also made the capacity of trapped fuel groove bigger, guaranteed no idle running phenomenon more.
Description of drawings
Fig. 1 is the main TV structure schematic representation of the piston of the utility model automobile absorber;
Fig. 2 is the A-A direction cross-sectional schematic of Fig. 1;
Fig. 3 is the backsight structural representation of the piston of the utility model automobile absorber.
Wherein: 1, throttle orifice; 2, Rectifier plate; 3, piston only; 4, trapped fuel groove.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail, but and be confined to the embodiment of the following stated.
By the structure of piston schematic representation of Fig. 1, Fig. 2 and the utility model automobile absorber shown in Figure 3 as can be known, it comprises the piston only 3 with Rectifier plate 2, along the circumferential direction is evenly distributed with a plurality of throttle orifices 1 on the described Rectifier plate 2.The outer end of described each throttle orifice 1 has trapped fuel groove 4, and described trapped fuel groove 4 communicates with throttle orifice 1, does not communicate between the trapped fuel groove 4, and the cross-section area of trapped fuel groove 4 is greater than the cross-section area of throttle orifice 1.In the present embodiment, the quantity of described throttle orifice 1 is six.The outward edge of the trapped fuel groove of stating 4 connects to the outward edge of piston only 3.
Claims (2)
1. the piston of an automobile absorber, comprise the have Rectifier plate piston only (3) of (2), along the circumferential direction be evenly distributed with a plurality of throttle orifices (1) on the described Rectifier plate (2), it is characterized in that: the outer end of described each throttle orifice (1) has trapped fuel groove (4), described trapped fuel groove (4) communicates with throttle orifice (1), and the cross-section area of trapped fuel groove (4) is greater than the cross-section area of throttle orifice (1).
2. the piston of automobile absorber according to claim 1, it is characterized in that: the outward edge of described trapped fuel groove (4) connects to the outward edge of piston only (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200190031U CN201963797U (en) | 2011-01-18 | 2011-01-18 | Piston of automobile shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200190031U CN201963797U (en) | 2011-01-18 | 2011-01-18 | Piston of automobile shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963797U true CN201963797U (en) | 2011-09-07 |
Family
ID=44526333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200190031U Expired - Fee Related CN201963797U (en) | 2011-01-18 | 2011-01-18 | Piston of automobile shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115033975A (en) * | 2021-03-03 | 2022-09-09 | 广州汽车集团股份有限公司 | Method for adjusting valve system of shock absorber |
-
2011
- 2011-01-18 CN CN2011200190031U patent/CN201963797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115033975A (en) * | 2021-03-03 | 2022-09-09 | 广州汽车集团股份有限公司 | Method for adjusting valve system of shock absorber |
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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 |
Granted publication date: 20110907 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |