CN104405816A - Friction reducing structure for front shock damper - Google Patents
Friction reducing structure for front shock damper Download PDFInfo
- Publication number
- CN104405816A CN104405816A CN201410653015.8A CN201410653015A CN104405816A CN 104405816 A CN104405816 A CN 104405816A CN 201410653015 A CN201410653015 A CN 201410653015A CN 104405816 A CN104405816 A CN 104405816A
- Authority
- CN
- China
- Prior art keywords
- front shock
- compound sleeve
- shock absorber
- friction structure
- breeches pipe
- 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.)
- Pending
Links
- 230000035939 shock Effects 0.000 title claims abstract description 23
- 150000001875 compounds Chemical class 0.000 claims description 45
- 239000006096 absorbing agent Substances 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000005435 mesosphere Substances 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract 4
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
- B62K25/08—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides a friction reducing structure for a front shock damper. The friction reducing structure comprises a bottom tube and a fork tube arranged in the bottom tube, wherein a circle of groove is formed in the inner wall of the large end of the bottom tube, a composite sleeve is arranged in the groove, sleeves the outside of the fork pipe, and is in clearance fit with the fork pipe, and the fork pipe, the bottom tube and the composite sleeve are in coaxial arrangement. The friction reducing structure has the advantages that the composite sleeve adopting a special structure is arranged between the fork pipe and the bottom tube, the composite sleeve can reduce the friction force between the fork pipe and the bottom tube, the possibility of clamping phenomenon in the driving process can be reduced, the comfort and the safety in the driving process are ensured, in addition, the structure is simple, and the maintenance is convenient.
Description
Technical field
The present invention relates to motorcycle vibration absorber technical field, particularly a kind of front shock absorber friction structure falls.
Background technique
Along with the growing progress of society's science and technology, people there has also been very large raising for the quality of life, can as the primary concern factor of motorcycle for the margin of safety of motorcycle and comfort level, so vibration damper is for just very important motorcycle industry.Usually, vibration damper, for suppressing the shock and vibration be applied on it, namely plays buffer function.
In front shock absorber structure originally, breeches pipe and end wound packages are Spielpassung after joining, but in the course of working of breeches pipe and end cylinder, the fitted positions such as breeches pipe external diameter, circularity, straightness accuracy, end cylinder internal diameter, dimension overproof can be there is unavoidably in batch production, after assembling, frictional force is larger, and likely catching phenomenon occurs, and can not ensure travelling comfort and Security when driving.
Summary of the invention
The deficiencies in the prior art in view of the above, what the object of the present invention is to provide a kind of front shock absorber falls friction structure, the frictional force between breeches pipe and end cylinder can be reduced, reduce the possibility of the catching phenomenon that there will be when driving, ensure travelling comfort when driving and Security.
For achieving the above object and other relevant objects, what the invention provides a kind of front shock absorber falls friction structure, the breeches pipe comprising end cylinder and install in end cylinder, the large end inwall of cylinder of the described end offers a circle groove, in described groove, compound sleeve is installed, this compound sleeve is enclosed within outside described breeches pipe, and with breeches pipe Spielpassung, described breeches pipe, end cylinder, compound sleeve are coaxially installed.
Adopt said structure, by arranging a compound sleeve on end cylinder, quality of fit is lower, and if there is dimension overproof, after assembling, frictional force is less, reduces the possibility that catching phenomenon occurs, and ensures travelling comfort when driving and Security.
As preferably: described compound sleeve inwall is soft material, because compound sleeve inwall is soft material, even if if so dimension overproof appears in breeches pipe, after assembling, coordinates for flexible between breeches pipe with compound sleeve, the possibility of generation catching phenomenon can be reduced.
As preferably: described compound sleeve is made up of inner plastic, mesosphere steel mesh (spherical chromiumcopper) and outer steel backing, compound sleeve adopts this structure, can not peel off mutually, durability is strong, and inwall is plastics, more frictional force can be reduced, centre is spherical chromiumcopper, and material just compares with 45#, and quality is softer, there is certain impact resistance, and on-deformable feature.
As preferably: described internal layer thickness is 0.3mm ~ 0.5mm.
As preferably: described depth of groove is less than compound sleeve thickness, by such design, has a fixed gap between breeches pipe outer wall and end cylinder small end inwall, reduce the generation of catching phenomenon.
As preferably: described compound sleeve thickness is 2mm.
As preferably: cylinder of the described end is held greatly on inwall and also offered mounting groove, described mounting groove, near groove, is provided with back-up ring in mounting groove, and this back-up ring is against on described compound sleeve end face, prevent front shock absorber in the course of the work, compound sleeve is moved and causes the generation of catching phenomenon.
As preferably: the roughness of described compound sleeve inwall is less than or equal to Ra0.8, the inwall that compound sleeve is smooth, reduce the frictional force between breeches pipe and compound sleeve, reduce the possibility that catching phenomenon occurs.
As mentioned above, the invention has the beneficial effects as follows: compared with prior art, this structure by arranging the compound sleeve that has special structure between breeches pipe and end cylinder, this compound sleeve can reduce the frictional force between breeches pipe and end cylinder, reduce the possibility of the catching phenomenon that there will be when driving, ensure travelling comfort when driving and Security, and this structure structure is simply convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structural representation of compound sleeve in the embodiment of the present invention;
Fig. 3 is the zoomed-in view of I in Fig. 2;
Piece mark explanation
1 breeches pipe
2 end cylinders
3 compound sleeves
4 back-up rings
5 oil sealings
6 dust sealings
7 is outer
8 middle levels
9 internal layers
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present invention and effect easily.
As shown in Figure 1, what the invention provides a kind of front shock absorber falls friction structure, the breeches pipe 1 comprising end cylinder 2 and install in end cylinder, the large end inwall of end cylinder 2 offers a circle groove, this groove is for installing compound sleeve 3, breeches pipe 1 is arranged in end cylinder 2 through compound sleeve 3, breeches pipe 1, and compound sleeve 3 and the same axis of end cylinder 2 three are installed.The axial width of groove equals the axial width of compound sleeve 3, in order to reduce the phenomenon producing clamping stagnation between breeches pipe 1 and end cylinder 2, the thickness of compound sleeve 3 is greater than the height of groove, like this, just have certain gap between breeches pipe 1 outer wall and end cylinder 2 inwall, just reduce the possibility producing catching phenomenon between them.
As shown in Figure 1, end cylinder 2 is held greatly on inwall and is also offered mounting groove, and mounting groove is at end cylinder 2 greatly between end end face and groove, and mounting groove is provided with back-up ring 4 near groove, this back-up ring 4 is against on described compound sleeve 3 end face, prevent front shock absorber in the course of the work compound sleeve 3 be moved.Mounting groove is also provided with dust sealing 6 in end end face one end greatly near end cylinder 2, is provided with oil sealing 5 between dust sealing 6 and back-up ring 4.
As shown in Figures 2 and 3, the structure of compound sleeve 3 is divided into three layers, is made up of respectively internal layer 9 plastics, mesosphere 8 steel mesh and outer 7 steel backing, compound sleeve 3 adopts this structure, can not peel off mutually, durability is strong, and inwall is plastics, more frictional force can be reduced, wherein steel mesh material is spherical chromiumcopper, and spherical chromiumcopper just compares with 45#, and quality is softer, there is certain impact resistance, and on-deformable feature.Wherein, the thickness of internal layer 9 is 0.3mm ~ 0.5mm, in order to further reduce the frictional force between compound sleeve 3 and breeches pipe 1, ensures that the inner wall roughness of compound sleeve 3 is at below Ra0.8.
In process of production, owing to considering the problem in front shock absorber life-span, key is end cylinder, and owing to increasing compound sleeve 3, the thickness of end cylinder 2 can be affected.So when end cylinder 2 design increases compound sleeve 3, end cylinder 2 inner wall thickness should be noted, ensure the anti-2 curved requirement of strength of end cylinder, if end cylinder 2 thickness is too thin, there will be the possibility that end cylinder 2 ruptures.Therefore, the thickness of compound sleeve 3 is set to 2mm.And when designing end cylinder, front fork tube external diameter footpath is Φ 30-0.02-0.06, and end cylinder internal diameter is Φ 31+0.04+0.08, and compound sleeve internal diameter is Φ 31+0.04+0.08, be Spielpassung between breeches pipe 1 and end cylinder 2 and compound sleeve 3.
In practice, done friction testing experiment between breeches pipe 1 and end cylinder 2 before improving front shock absorber respectively and after improving, specific experiment is as follows:
Before improvement, breeches pipe 1 axial motion speed is set to V=0.005m/s, and the distance of breeches pipe 1 axial motion is S=50mm, obtains resistance to compression pression Py=44N respectively, restores resistance Pf=45N.
After improvement, breeches pipe 1 axial motion speed is set to V=0.005m/s, and the distance of breeches pipe 1 axial motion is S=50mm, obtains resistance to compression pression Py=33N respectively, restores resistance Pf=12N.
Data obtain by experiment, and the front shock absorber breeches pipe 1 after improvement and the frictional force between end cylinder 2 obviously reduce.
Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (9)
1. a front shock absorber friction structure falls, the breeches pipe comprising end cylinder and be arranged in end cylinder, it is characterized in that: the large end inwall of cylinder of the described end offers a circle groove, in described groove, compound sleeve is installed, this compound sleeve is enclosed within outside described breeches pipe, and with breeches pipe Spielpassung, described breeches pipe, end cylinder, compound sleeve are coaxially installed.
2. a kind of front shock absorber according to claim 1 friction structure falls, it is characterized in that: described compound sleeve inwall is soft material.
3. a kind of front shock absorber according to claim 1 friction structure falls, it is characterized in that: described compound sleeve is made up of inner plastic, mesosphere steel mesh and outer steel backing.
4. a kind of front shock absorber according to claim 3 friction structure falls, it is characterized in that: described steel mesh is made up of spherical chromiumcopper.
5. a kind of front shock absorber according to claim 4 friction structure falls, it is characterized in that: described internal layer thickness is 0.3mm ~ 0.5mm.
6. a kind of front shock absorber according to claim 1 friction structure falls, it is characterized in that: described depth of groove degree is less than compound sleeve thickness.
7. a kind of front shock absorber according to claim 1 friction structure falls, it is characterized in that: described compound sleeve thickness is 2mm.
8. a kind of front shock absorber according to claim 1 friction structure falls, it is characterized in that: cylinder of the described end is held greatly on inwall and also offered mounting groove, and described mounting groove, near groove, is provided with back-up ring in mounting groove, this back-up ring is against on described compound sleeve end face.
9. a kind of front shock absorber according to claim 1 friction structure falls, it is characterized in that: the roughness of described compound sleeve inwall is less than or equal to Ra0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653015.8A CN104405816A (en) | 2014-11-13 | 2014-11-13 | Friction reducing structure for front shock damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653015.8A CN104405816A (en) | 2014-11-13 | 2014-11-13 | Friction reducing structure for front shock damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405816A true CN104405816A (en) | 2015-03-11 |
Family
ID=52643467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410653015.8A Pending CN104405816A (en) | 2014-11-13 | 2014-11-13 | Friction reducing structure for front shock damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405816A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5445440A (en) * | 1977-09-19 | 1979-04-10 | Oiles Industry Co Ltd | Double layer bearing and method of producing same |
| CN1051235A (en) * | 1990-08-18 | 1991-05-08 | 辽源市科学技术研究所 | Flexible composite bearing with copper mesh base and manufacture method thereof |
| JP2000319472A (en) * | 1999-03-08 | 2000-11-21 | Oiles Ind Co Ltd | Resin composition for slidable member and slidable member using same |
| CN2541304Y (en) * | 2002-03-10 | 2003-03-26 | 重庆长安减震器有限公司 | Socket front damper |
| US6548188B1 (en) * | 2000-03-08 | 2003-04-15 | Oiles Corporation | Resin composition for sliding member, and sliding member produced therefrom |
| CN202911891U (en) * | 2012-10-26 | 2013-05-01 | 广东银河摩托车集团有限公司 | Shock absorber of motorcycle |
| CN204284294U (en) * | 2014-11-13 | 2015-04-22 | 重庆耀勇减震器有限公司 | A kind of front shock absorber friction structure falls |
-
2014
- 2014-11-13 CN CN201410653015.8A patent/CN104405816A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5445440A (en) * | 1977-09-19 | 1979-04-10 | Oiles Industry Co Ltd | Double layer bearing and method of producing same |
| CN1051235A (en) * | 1990-08-18 | 1991-05-08 | 辽源市科学技术研究所 | Flexible composite bearing with copper mesh base and manufacture method thereof |
| JP2000319472A (en) * | 1999-03-08 | 2000-11-21 | Oiles Ind Co Ltd | Resin composition for slidable member and slidable member using same |
| US6548188B1 (en) * | 2000-03-08 | 2003-04-15 | Oiles Corporation | Resin composition for sliding member, and sliding member produced therefrom |
| CN2541304Y (en) * | 2002-03-10 | 2003-03-26 | 重庆长安减震器有限公司 | Socket front damper |
| CN202911891U (en) * | 2012-10-26 | 2013-05-01 | 广东银河摩托车集团有限公司 | Shock absorber of motorcycle |
| CN204284294U (en) * | 2014-11-13 | 2015-04-22 | 重庆耀勇减震器有限公司 | A kind of front shock absorber friction structure falls |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |