CN102032310A - Air charging device for telescopic shock absorber - Google Patents
Air charging device for telescopic shock absorber Download PDFInfo
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- CN102032310A CN102032310A CN 201010585399 CN201010585399A CN102032310A CN 102032310 A CN102032310 A CN 102032310A CN 201010585399 CN201010585399 CN 201010585399 CN 201010585399 A CN201010585399 A CN 201010585399A CN 102032310 A CN102032310 A CN 102032310A
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- pneumatic head
- link
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- shock absorber
- telescopic shock
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Abstract
The invention relates to an air charging device for a telescopic shock absorber, which belongs to the application field of hydraulic machinery and motor vehicles and comprises an air charging head, a connecting piece arranged at the upper part of the air charging head and an air charging head lower end cover arranged at the bottom of the air charging head and a workpiece needing to be charged with air. The connecting piece is a hollow pipe fitting which is internally provided with a resilience measuring rod, and the bottom of the air charging head is provided with an air charging nozzle. The invention can finish air charge and seal continuously and charge air to required ideal pressure.
Description
Technical field
The present invention relates to a kind of inflator that is used for telescopic shock absorber.Belong to hydraulic machinery and road vehicle application field.
Background technique
Automobile because the impact shock that causes is disturbed on ground, is delivered to suspension through wheel in the process of moving, and vibration damper can promptly absorb vibrational energy, thereby reduce body vibrations by the coupling good with suspension.Because high-comfort, the high security of automobile depend on the suspension system of vehicle, and automobile absorber is the main damping member of vehicle suspension, therefore improve the vibration damper performance to promoting that developing of automobile industry plays an important role.
Adopt bitubular hydraulic damper on the automobile at present, this vibration damper has not satisfied the needs of development of automobile more, and therefore, each state all is being devoted to the research work of vibration damper.The seventies, monotubular inflation vibration damper appearred in Japan, although this vibration damper has good effect aspect the vibration damper external characteristics improving, because inflation pressure is higher, thus also higher to seal request, therefore be only limited on car at present and use.Many industrial advanced countries succeed in developing the bitubular inflation hydraulic damper between monotubular inflation vibration damper and bitubular hydraulic damper, and to reduce at a high speed down, the distortion of vibration damper indicator diagram improves the smoothness and the Security of vehicle driving.China also is in the development stage for the gas-filled type vibration damper.
The characteristics of gas-filled type vibration damper: gas-filled type can effectively reduce wheel and be subjected to the dither that generation is impacted on ground suddenly owing to be filled with pressurized gas in the vibration damper.Because the existence of precompressed gas, vibration damper fluid has been set up back pressure, vibration damper valve compensatory good, and each response valve sensitivity has effectively suppressed the high frequency distortion and the noise of traditional shock absorber.In the identical stroke, the flow of the valve of flowing through is big; Under with the isoflux condition, performance is more stable relatively.Certainly the gas-filled type vibration damper also has its shortcoming, and oil sealing is required height, and accuracy of manufacturing is required height, gas filling technology complexity.Owing at work certain back pressure is arranged, simultaneously good sealing will be arranged.The key technology of making bitubular gassy fluid pressure damper is how nitrogen directly to be charged into, but inflator complex structure mostly at present, profile is quite clumsy, and complex operation, its inflation tends to cause the vibration damper oil sealing to leak, and influences the vibration damper sealing effect, and the vibration damper performance is affected.
Summary of the invention
Purpose of the present invention is just in order to solve the deficiencies in the prior art, and provides a kind of structure comparatively simple, and keeps the inflator of vibration damper sealing effect.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of inflator of telescopic shock absorber, comprise link, the pneumatic head lower end cap that the pneumatic head bottom is provided with and the workpiece that needs inflation that pneumatic head, pneumatic head top are provided with, it is characterized in that: described link is a hollow pipe fitting, its inside is provided with the rebounding force measuring rod, and described pneumatic head bottom also is provided with a charging air inlet.
The above link and pneumatic head, charging air inlet form hollow gas chamber, and described pneumatic head connects air input joint, and make air chamber formation gas-entered passageway in air input joint and the pneumatic head.
The above charging air inlet is located at the inside of pneumatic head and pneumatic head lower end cap joint, and the joint of described pneumatic head and link is provided with on the pneumatic head and seals, and the joint of described pneumatic head lower end cap and workpiece is provided with the pneumatic head lower seal.
The above rebounding force measuring rod is located at the link top, and link inner bottom part and rebounding force measuring rod relative position are provided with guide head.
The end that the above charging air inlet bottom is connected with workpiece is a sphenocephaly.
Working procedure of the present invention is:
1. the workpiece of need inflation is connected with the present invention;
2. starting device, pneumatic head descends, the top of oil sealing master lip and the contact seal of workpiece upper-end surface, the top of the workpiece of charging air inlet sphenocephaly insertion simultaneously oil sealing master lip, but can not touch with oil sealing master lipped joint;
3. air intake valve is opened, and gas enters the air chamber of pneumatic head, and when pressure reached certain value, oil sealing master lip was outwards upheld under the gas pressure effect.Form the slit this moment between oil sealing master lip and piston rod, make gas enter workpiece inside;
4. determine gas pressure value according to the size of workpiece rebounding force;
5. after pneumatic head air chamber pressure and workpiece internal pressure balance, inflation finishes.Close gas check valve;
6. pneumatic head lifts slightly, and the air chamber pressure release detects rebounding force;
7. after qualified, the pneumatic head reposition.
The invention has the beneficial effects as follows: 1. under the prerequisite that satisfies the critical velocity requirement, use less pre-inflation pressure, this can not only reduce the negative effect of bringing because of inflation, and help sealing, in the gas replenishment process, the working solution that leaks from piston rod guide can be recycled to the compensated chamber, has reduced the trapped fuel at oil sealing place, and oil sealing is in low-pressure state, solves sealing problem easily.
2. have simple in structure, the advantage of function admirable, can finish continuously the inflation and the sealing, can be inflated to desired desired pressure.
3. the present invention's core component of being used to inflate is all detachable, can be applicable on the vibration damper of different model.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 inserts the top front and back phase diagram of workpiece oil sealing master lip for charging air inlet sphenocephaly among Fig. 1 of the present invention.
Among the figure: 1. rebounding force measuring rod; 2. link; 3. seal on the pneumatic head; 4. pneumatic head; 5. charging air inlet; 6. pneumatic head lower end cap; 7. pneumatic head lower seal; 8. workpiece oil sealing; 9. oil sealing master lip; 10. workpiece; 11. air input joint; 12. guide head.
A. charging air inlet does not insert the state of the preceding workpiece oil sealing dust excluder lips of workpiece; B. charging air inlet inserts the state of workpiece oil sealing dust excluder lips behind the workpiece
Embodiment
By accompanying drawing as can be known, pneumatic head lower end cap 6 that the link 2 that pneumatic head 4 of the present invention, pneumatic head 4 tops are provided with, pneumatic head 4 bottoms are provided with and the workpiece 10 that needs inflation, described link 2 is a hollow pipe fitting, and its inside is provided with rebounding force measuring rod 1, and described pneumatic head 4 bottoms also are provided with a charging air inlet 5.The above link 2 forms hollow gas chamber with pneumatic head 4, charging air inlet 5, and described pneumatic head 4 connects air input joint 11, and makes air input joint 11 and pneumatic head 4 interior air chambers form gas-entered passageway.The above charging air inlet 5 is located at the inside of pneumatic head 4 and pneumatic head lower end cap 6 joints, and the joint of described pneumatic head 4 and link 2 is provided with and seals 3 on the pneumatic head, and described pneumatic head lower end cap 6 is provided with pneumatic head lower seal 7 with the joint of workpiece 10.The above rebounding force measuring rod 1 is located at link 2 tops, and link 2 inner bottom parts and rebounding force measuring rod 1 relative position are provided with guide head 12.The end that the above charging air inlet 5 bottom is connected with workpiece 2 is a sphenocephaly.
Guide head 12 is installed in the top of vibration damper workpiece piston rod, then vibration damper is placed on the given station on the platform of charger.Start charger, charger with seal 3 on the link 5 of pneumatic head 4, pneumatic head 4 and equipment, the pneumatic head, charging air inlet 5 and pneumatic head lower end cap 6 press to piston rod; And piston rod is compressed to the lowermost end of piston rod and the position about bottom valve assembly top 10cm.At given station, nitrogen is entered by the air input joint 11 of frock, through pneumatic head 4, charging air inlet 5, enter into the gap between oil sealing and the guider under pressure in the oil sealing master lip 9 of Work piece sealing and the space between the piston rod, enter into the upper end of vibration damper outer cylinder again by the aperture on the guider.When inner gas pressure reaches the back pressure of setting, keep about 6s.After inflation was finished, charger retracted the appointment station with sealing on the link 2 of pneumatic head 4, pneumatic head 4 and equipment, the pneumatic head, charging air inlet 5 and pneumatic head lower end cap 6.The guide head 12 on workpiece piston rod top is taken off, and workpiece is taken off, this moment, the gas replenishment process of this workpiece was finished.
Should be noted that mode of execution of the present invention only is its optimal way, to belonging to general idea of the present invention, and only is conspicuous change, all should belong within protection scope of the present invention.
Claims (5)
1. the inflator of a telescopic shock absorber, comprise link, the pneumatic head lower end cap that the pneumatic head bottom is provided with and the workpiece that needs inflation that pneumatic head, pneumatic head top are provided with, it is characterized in that: described link is a hollow pipe fitting, its inside is provided with the rebounding force measuring rod, and described pneumatic head bottom also is provided with a charging air inlet.
2. the inflator of telescopic shock absorber according to claim 1 is characterized in that: described link and pneumatic head, charging air inlet form hollow gas chamber, and described pneumatic head connects air input joint, and make air chamber formation gas-entered passageway in air input joint and the pneumatic head.
3. the inflator of telescopic shock absorber according to claim 1, it is characterized in that: described charging air inlet is located at the inside of pneumatic head and pneumatic head lower end cap joint, the joint of described pneumatic head and link is provided with on the pneumatic head and seals, and the joint of described pneumatic head lower end cap and workpiece is provided with the pneumatic head lower seal.
4. the inflator of telescopic shock absorber according to claim 1, it is characterized in that: described rebounding force measuring rod is located at the link top, and link inner bottom part and rebounding force measuring rod relative position are provided with guide head.
5. according to the inflator of claim 1 or 3 described telescopic shock absorbers, it is characterized in that: the end that described charging air inlet bottom is connected with workpiece is a sphenocephaly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010585399 CN102032310A (en) | 2010-12-14 | 2010-12-14 | Air charging device for telescopic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010585399 CN102032310A (en) | 2010-12-14 | 2010-12-14 | Air charging device for telescopic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102032310A true CN102032310A (en) | 2011-04-27 |
Family
ID=43885606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010585399 Pending CN102032310A (en) | 2010-12-14 | 2010-12-14 | Air charging device for telescopic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102032310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277452A (en) * | 2013-06-08 | 2013-09-04 | 天津天德减震器有限公司 | Damper aeration locating device |
| CN108253074A (en) * | 2018-03-05 | 2018-07-06 | 河南天减振器科技有限公司 | The charger of bitubular inflatable hydraulic buffer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196785A (en) * | 1996-06-20 | 1998-10-21 | 巴西船用压缩机有限公司 | Pressurizing and sealing device and process for hermetic systems |
| CN101101032A (en) * | 2006-07-06 | 2008-01-09 | 浙江正裕工业有限公司 | Single-cylinder aerating package process and package device |
| CN201302038Y (en) * | 2008-11-10 | 2009-09-02 | 方飞鹏 | Automatic gas charging device |
| CN201363390Y (en) * | 2009-02-19 | 2009-12-16 | 成都九鼎科技(集团)有限公司 | Simple inflatable structure of hydraulic shock absorber |
| CN201487543U (en) * | 2009-08-17 | 2010-05-26 | 天津天德减震器有限公司 | Cylindrical automobile shock absorber air-filling device |
| CN201599165U (en) * | 2010-01-16 | 2010-10-06 | 胡校风 | Inflator for racing vehicles |
-
2010
- 2010-12-14 CN CN 201010585399 patent/CN102032310A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196785A (en) * | 1996-06-20 | 1998-10-21 | 巴西船用压缩机有限公司 | Pressurizing and sealing device and process for hermetic systems |
| CN101101032A (en) * | 2006-07-06 | 2008-01-09 | 浙江正裕工业有限公司 | Single-cylinder aerating package process and package device |
| CN201302038Y (en) * | 2008-11-10 | 2009-09-02 | 方飞鹏 | Automatic gas charging device |
| CN201363390Y (en) * | 2009-02-19 | 2009-12-16 | 成都九鼎科技(集团)有限公司 | Simple inflatable structure of hydraulic shock absorber |
| CN201487543U (en) * | 2009-08-17 | 2010-05-26 | 天津天德减震器有限公司 | Cylindrical automobile shock absorber air-filling device |
| CN201599165U (en) * | 2010-01-16 | 2010-10-06 | 胡校风 | Inflator for racing vehicles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277452A (en) * | 2013-06-08 | 2013-09-04 | 天津天德减震器有限公司 | Damper aeration locating device |
| CN108253074A (en) * | 2018-03-05 | 2018-07-06 | 河南天减振器科技有限公司 | The charger of bitubular inflatable hydraulic buffer |
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Application publication date: 20110427 |