CN1236065A - Sliding drum type shock absorber - Google Patents
Sliding drum type shock absorber Download PDFInfo
- Publication number
- CN1236065A CN1236065A CN 98112012 CN98112012A CN1236065A CN 1236065 A CN1236065 A CN 1236065A CN 98112012 CN98112012 CN 98112012 CN 98112012 A CN98112012 A CN 98112012A CN 1236065 A CN1236065 A CN 1236065A
- Authority
- CN
- China
- Prior art keywords
- slide cartridge
- piston
- damper cylinder
- damping
- shock absorber
- 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.)
- Granted
Links
- 230000035939 shock Effects 0.000 title abstract description 10
- 239000006096 absorbing agent Substances 0.000 title abstract description 5
- 238000013016 damping Methods 0.000 claims description 23
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000011550 stock solution Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 210000000056 organ Anatomy 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a sliding barrel type shock absorber which is mainly characterized in that a sliding barrel is arranged between a shock absorption cylinder and a piston. Through the arranged sliding cylinder, the manufacturing manufacturability of the shock absorber is improved, and the shock absorber is high in precision, wear-resistant and long in service life.
Description
Vibration damper is widely used in automobile and motorcycle manufacturing and space shuttle manufacturing etc.Its purposes is damping because of freely shaking that motion produces, and the absorbing vibration energy suppresses resonance, thereby reaches the purpose of damping, improves the travelling comfort of taking, and its main structure has cartridge type two-way function hydraulic damper, bitubular oleo-pneumatic shock absorber etc.Its principle is that oil or oil are gentle to flow the vibrations that damped motion produces and utilize oil or the compressibility of gas is come the absorption portion vibration energy by controlling.Owing to bear the compound action of multiple power, the main cause of its inefficacy is the wearing and tearing of damper cylinder and piston matching trim to vibration damper in use, and it two is the be sealed and matched wearing and tearing of face of piston rod and cylinder pedestal.Existing deficiency is: 1, damper cylinder is the long tube of a thin-walled cylinder, the major diameter large percentage, and anufacturability is poor, accuracy of manufacturing is low, and sealing effect is poor, is subjected to the restriction of processing mode and heat treatment process simultaneously because of the selection of damper cylinder material, its hardness is little, wears no resistance, and is easy to wear.2, because piston and damper cylinder circumferential sealing area of contact are less, stressed too concentrated, guidance quality is poor, worsen force-bearing situation, face and piston rod and the cylinder pedestal wearing and tearing of face that are sealed and matched thereby aggravation piston and damper cylinder are sealed and matched, the state of wear that is bar shaped zanjon shape generally speaking, thereby the working life of shortening vibration damper.
Task of the present invention is to overcome above-mentioned deficiency, provides a kind of good manufacturing process that has, highi degree of accuracy, high abrasion, long-life slide tube type damper.
Technological scheme of the present invention is that a slide cartridge is set between damper cylinder and piston, interior all slipper seals of the periphery of slide cartridge and damper cylinder cooperate and connect, its fitting surface is an outer circumferential face, the interior week of slide cartridge and the periphery slipper seal of piston cooperate and connect, its fitting surface is an inner peripheral surface, the slide cartridge two ends are provided with limit structure, are connected in the slide cartridge piston is spacing.Spacing distance between the limit structure of slide cartridge two ends needs more than or equal to the required stroke distance (design runlength) of the normal damping of piston, when damping shock absorption, relative movement resistance F between outer circumferential face slide cartridge and the damper cylinder needs the power difference T sum that produces because of damping fluid pressure reduction greater than the relative movement resistance f between inner peripheral surface slide cartridge and the piston and slide cartridge two ends, i.e. F＞f+T.During (design runlength) damping, slide cartridge keeps relative static with damper cylinder to vibration damper in normal damping stroke range, piston in slide cartridge relatively the slide cartridge motion realize damping shock absorption, its damping shock absorption is finished in slide cartridge.When amplitude of vibration exceeds normal damping stroke range damping, piston is subjected to the restriction of slide cartridge two ends limit structure will drive slide cartridge and realizes that with respect to the damper cylinder motion slide cartridge motion compensates the damping stroke automatically and carries out damping, along with its stroke of piston damping shock absorption reducing progressively, slide cartridge relative damper cylinder motion under the effect of two ends limit structure and piston automatically resets up to static relatively.By the slide cartridge that is provided with, the main wear surface of vibration damper is present on the inner peripheral surface of slide cartridge and piston seal cooperation.Because of the major diameter ratio of slide cartridge little many than damper cylinder, length is shorter again, and its anufacturability significantly improves, and accuracy of manufacturing improves several grades, simultaneously slide cartridge and piston can be selected preferably high-abrasive material for use and can carry out heat treatment process, and its wear resistance significantly improves significantly.Disperse the stressed of piston by large-area contact of slide cartridge and damper cylinder, improve the guiding stability of piston and piston rod, the wearing and tearing that alleviate piston and piston rod.
The drawing explanation:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Figure 1A-A sectional drawing.
The invention will be further described below in conjunction with accompanying drawing (embodiment).
With reference to Fig. 1, shown in Figure 2, slide cartridge 1 is arranged between damper cylinder 2 and the piston 3, interior all slipper seals of the periphery of slide cartridge 1 and damper cylinder 2 cooperate and connect, the interior week of slide cartridge 1 and the periphery slipper seal of piston 3 cooperate and connect, be provided with positive stop lug boss and groove 4 in the upper end of slide cartridge 1, be provided with spacing bullet apical organ 5 in the lower end of slide cartridge 1.Inner peripheral surface and outer circumferential face are for satisfying the condition of F＞f+T, in groove 4, O-ring seals can be set or parts such as metal elastic-sealed circle or metal elastic-sealed ring carry out pretension and spring 6 can be set to outer circumferential face in spacing bullet apical organ 5, brake pad 7 is used to increase outer circumferential face frictional force etc., also can the periphery of interior week of damper cylinder 2 and slide cartridge 1 attached with high coefficient of friction material or increase the roughness etc. of periphery fitting surface.Piston 3 is by the convex platform of slide cartridge 1 and spacing bullet apical organ 5 spacing being connected in the slide cartridge 1, and piston 3 should have enough normal damping strokes in slide cartridge 1, and the trip suggestion is determined that by actual road conditions wear test its stroke size suggestion is 80% of polishing scratch area length.The limit structure at slide cartridge 1 two ends also can be position limit pin, limiting stopper, spacing rivet, spacing bullet card etc., the groove 4 of upper end also can be arranged on the lower end of slide cartridge 1, and slide cartridge 1 and piston 3 materials can be selected the alloy material of high abrasion, high hardness, as GWMn, Cr12MoV etc. adopt mill pin operation precision-fit to make after the heat treatment.Parts such as metal o-ring, metallic seal bullet ring also can be set on piston 3 to be sealed and matched.Slide cartridge 1 also can be selected the wear-resisting engineering plastics of high-quality for use, as fluoroplastic, nylon etc.When normal damping stroke range internal damping, slide cartridge 1 relative damper cylinder 2 maintenances are static relatively, piston 3 relative slide cartridge 1 motion dampings in slide cartridge 1.When amplitude of vibration surpasses normal damping stroke range, piston 3 carries out damping by the positive stop lug boss at slide cartridge 1 two ends with the automatic damping stroke that compensates of spacing bullet apical organ 5 drive slide cartridges, 1 relative damper cylinder 2 motion realization slide cartridges motions, when progressively being decreased to the normal travel scope along with piston 3 damping strokes, slide cartridge 1 relative damper cylinder 2 motions under piston 3 and two ends limit structure effect automatically reset up to keeping static relatively.
The invention has the advantages that the anufacturability that improves damper, improve behaviour in service, Make the high-precision wear-resisting long-life of damper.
Claims (2)
1, a kind of vibration damper comprises damper cylinder, piston, piston rod, stock solution tube, valve, valve seat, Sealing, coupling, it is characterized in that also being provided with slide cartridge, interior all slipper seals of the periphery of slide cartridge and damper cylinder cooperate and connect, and the interior week of slide cartridge and the periphery slipper seal of piston cooperate and connect, and piston is spacing to be connected in the slide cartridge.
2, the inside and outside sliding sealing surface of slide cartridge according to claim 1 and damper cylinder, piston space, the relative movement resistance when it is characterized in that damping between inside and outside sliding sealing surface satisfies F＞f+T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981120121A CN1153911C (en) | 1998-05-18 | 1998-05-18 | Slide tube type damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981120121A CN1153911C (en) | 1998-05-18 | 1998-05-18 | Slide tube type damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1236065A true CN1236065A (en) | 1999-11-24 |
| CN1153911C CN1153911C (en) | 2004-06-16 |
Family
ID=5221894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981120121A Expired - Fee Related CN1153911C (en) | 1998-05-18 | 1998-05-18 | Slide tube type damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153911C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455164A (en) * | 2014-12-15 | 2015-03-25 | 重庆东安渠强机械制造有限公司 | Damping shock absorber for motorcycle |
| IT201800003310A1 (en) * | 2018-03-06 | 2019-09-06 | Athena S P A | STRUCTURE OF HYDRAULIC SHOCK ABSORBER |
-
1998
- 1998-05-18 CN CNB981120121A patent/CN1153911C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455164A (en) * | 2014-12-15 | 2015-03-25 | 重庆东安渠强机械制造有限公司 | Damping shock absorber for motorcycle |
| CN104455164B (en) * | 2014-12-15 | 2016-06-22 | 重庆东安渠强机械制造有限公司 | Motorcycle damping shock absorber |
| IT201800003310A1 (en) * | 2018-03-06 | 2019-09-06 | Athena S P A | STRUCTURE OF HYDRAULIC SHOCK ABSORBER |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1153911C (en) | 2004-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU RUIDINGTE SCIENCE AND TECHNOLOGY INDUSTRI Free format text: FORMER OWNER: DU ZHIWEI Effective date: 20031111 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Du Zhiwei Inventor after: Chen Weirong Inventor before: Du Zhiwei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DU ZHIWEI TO: DU ZHIWEI; CHEN WEIRONG |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20031111 Address after: High tech Zone Gaopeng road in Chengdu city of Sichuan province in 610041 science and Technology Industrial Park No. 11 A-242 Applicant after: Chengdu Ruidingte Science and Technology Co., Ltd. Address before: 628017 120 mailbox 82, Guangyuan City, Sichuan Province Applicant before: Du Zhiwei |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |