CN204253718U - A kind of front damper of motorcycle - Google Patents
A kind of front damper of motorcycle Download PDFInfo
- Publication number
- CN204253718U CN204253718U CN201420711269.6U CN201420711269U CN204253718U CN 204253718 U CN204253718 U CN 204253718U CN 201420711269 U CN201420711269 U CN 201420711269U CN 204253718 U CN204253718 U CN 204253718U
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- CN
- China
- Prior art keywords
- front fork
- fork tube
- cylinder
- positioning pipe
- motorcycle
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- Expired - Fee Related
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Abstract
The utility model provides a kind of front damper of motorcycle, comprises front fork tube, and end cylinder is stretched in described front fork tube lower end, becomes to be slidably matched with bottomless drum shape; Positioning pipe is positioned at end cylinder, and described positioning pipe lower end and cylinder lower end, the end are fastenedly connected, and upper end is positioned at front fork tube and front fork tube is slidably matched; Damping spring is arranged in front fork tube, between positioning pipe and front fork tube; Cylinder is built with hydraulic oil at the end; Described front fork tube lower sealing end cylindrical wall diminishes from top to bottom gradually, and be formed with the seal structure of tapering, tapering is 2 degree to 6 degree, and the conical surface and outer axial face joint are rounded down.When the vibration damper of motorcycle works, damping oil is easy to enter the rubbing surface between front fork tube and end cylinder, reduces friction, and increases the travelling comfort of vibration damper.
Description
Technical field
The utility model relates to motorcycle damping device field, particularly relates to a kind of front fork tube and the motorcycle vibration absorber comprising described front fork tube.
Background technique
The application of front damper of motorcycle in motorcycle is very general, and it plays supporting vehicle body, transmitting tractive power, and the safety travelled with vehicle is closely bound up; It is again the quality of performance part, damping effect simultaneously, also can have an impact to the comfort of driver and passenger.
In front damping device structure originally, front fork tube stretches in end cylinder, form Spielpassung, front fork tube sealing end cylindrical adopts tapering be more than 10 degree angles and do not have rounding, this structure because of tapering large, damping oil can not well import in rubbing surface, and when causing vibration damper to move up and down, damping is large, and damping effect is poor.
Model utility content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of motorcycle vibration absorber, the front fork tube sealing end cylindrical wall tapering of this vibration damper is 2 to 6 degree, and rounding, solve oil in prior art and can not import rubbing surface very well, the problems such as when causing vibration damper to move up and down, damping is large, damping effect difference.
For achieving the above object and other relevant objects, the utility model provides a kind of front damper of motorcycle, comprises front fork tube, and end cylinder is stretched in described front fork tube lower end, forms Spielpassung; Positioning pipe is positioned at end cylinder, and described positioning pipe lower end and cylinder lower end, the end are fastenedly connected, and upper end is positioned at front fork tube and front fork tube is slidably matched; Damping spring is arranged in front fork tube, between positioning pipe and front fork tube; Cylinder is built with hydraulic oil at the end; Described front fork tube lower end cylindrical wall diminishes from top to bottom gradually, is formed with the seal structure of tapering, and tapering is 2 degree to 6 degree, and the conical surface and outer axial face joint are rounded down.When the vibration damper of motorcycle works, damping oil is easy to enter the rubbing surface between front fork tube and end cylinder, reduces friction, and increases the travelling comfort of vibration damper.
Further, described positioning pipe upper end offers a circle groove, is provided with piston ring in described groove, this piston ring and front fork tube Spielpassung; Described front fork tube, positioning pipe, piston ring are coaxially installed.Piston ring can prevent damping oil from revealing.
Further, described piston ring adopts polyoxymethylene to make.Cost-saving.
Further, oil sealing is carried out by packing ring and screw in cylinder lower end, the described end, and described packing ring is aluminum packing ring.Cost-saving.
Further, the material that described uropore packing ring adopts is aluminium sheet L4-GB3880-1983.
As mentioned above, front damper of motorcycle of the present utility model, has following beneficial effect:
Because front fork tube sealing end external conicity is 2 to 6 degree, and rounding, when the vibration damper of motorcycle works, damping oil is easy to enter the rubbing surface between front fork tube and end cylinder, reduces friction, and increases the travelling comfort of vibration damper.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of front fork tube sealing end in the utility model embodiment.
Piece mark explanation
1, front fork tube; 2, end cylinder; 3, positioning pipe; 4, damping spring; 5, piston ring; 6, packing ring; 7, screw.
Embodiment
By particular specific embodiment, mode of execution of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
In order to can the utility model be described in detail, first, the concrete structure of damper clutch release slave cylinder of the present utility model is explained:
As shown in Figure 1, the utility model provides a kind of front damper of motorcycle, comprises front fork tube 1, and described front fork tube 1 lower end is positioned at end cylinder 2, forms Spielpassung with end cylinder 2; Positioning pipe 3 is positioned at end cylinder 2, and described positioning pipe 3 lower end and end cylinder 2 lower end are fastenedly connected, and upper end is positioned at front fork tube 1 and is slidably matched with front fork tube 1; Damping spring 4 is arranged in front fork tube 1, between positioning pipe 3 and front fork tube 1; End cylinder 2 is built with damping oil; Described front fork tube 1 lower sealing end cylindrical wall diminishes from top to bottom gradually, and be formed with the seal structure of tapering, tapering is 2 degree to 6 degree, and the conical surface and outer axial face joint are rounded down.
Wherein, described positioning pipe 3 upper end offers a circle groove, is provided with piston ring 5 in described groove, this piston ring 5 and front fork tube 1 Spielpassung; Described front fork tube 1, positioning pipe 3, piston ring 5 are coaxially installed.
Wherein, described piston ring 5 adopts polyoxymethylene to make.Tradition front shock absorber piston ring adopts teflon, and cost is very high.Now adopt polyoxymethylene to substitute the material that teflon does piston ring, do not affect the using effect of vibration damper after change, polyoxymethylene makes simple, and wear-resistance and oil-resistance again, can meet the needs in front shock absorber driving process completely, and reduce cost.
Wherein, oil sealing is carried out by packing ring 6 and screw 7 in cylinder 2 lower end, the described end, and described packing ring 6 is aluminum packing ring.The material adopted is aluminium sheet L4-GB3880-1983.After screw 7 is tightened, aluminium packing ring can produce distortion, the pit on end cylinder surface and screw 7 surface just fills by this distortion, thus stop interior oil toward leaking outside, front shock absorber originally uses copper washer, and cost is high, after using aluminium washer sealing, do not affect the using effect of vibration damper, and reduce cost; After change, the material of aluminium pad is aluminium sheet L4-GB3880-1983; Without oil leakage phenomenon after 1000000 endurance tests.
In the present embodiment, motorcycle vibration absorber working principle is: motorcycle is in rough road traveling, vibration damper constantly pumps and plays cushioning effect, front fork tube 1 is also thereupon constantly reciprocating up and down, front fork tube 1 outer surface and end cylinder 2 endoporus are Spielpassung, move up and down middle generation mechanical friction, in order to reduce friction, improve the travelling comfort of vibration damper, front fork tube 1 sealing end cylindrical adopts Small Taper 2 ~ 6 degree to add R angle (rounding), at this moment, damping oil imports in rubbing surface easily via the little conical surface, reduce friction, angle of cut place is R angle (rounding) simultaneously, oil-shear can not be fallen again, so substantially increase the travelling comfort of vibration damper.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (5)
1. a front damper of motorcycle, comprises front fork tube (1), and described front fork tube (1) lower end is positioned at end cylinder (2), forms Spielpassung with end cylinder (2); Positioning pipe (3) is positioned at end cylinder (2), and described positioning pipe (3) lower end and end cylinder (2) lower end are fastenedly connected, and upper end is positioned at front fork tube (1) and is slidably matched with front fork tube (1); Damping spring (4) is arranged in front fork tube (1), is positioned between positioning pipe (3) and front fork tube (1); End cylinder (2) is built with damping oil; It is characterized in that: described front fork tube (1) lower sealing end cylindrical wall diminishes from top to bottom gradually, is formed with the seal structure of tapering, and tapering is 2 degree to 6 degree, and the conical surface and outer axial face joint are rounded down.
2. front damper of motorcycle according to claim 1, it is characterized in that: described positioning pipe (3) upper end offers a circle groove, piston ring (5) is installed, this piston ring (5) and front fork tube (1) Spielpassung in described groove; Described front fork tube (1), positioning pipe (3), piston ring (5) are coaxially installed.
3. front damper of motorcycle according to claim 2, is characterized in that: described piston ring (5) adopts polyoxymethylene to make.
4. front damper of motorcycle according to claim 1, is characterized in that: oil sealing is carried out by packing ring (6) and screw (7) in cylinder (2) lower end, the described end, and described packing ring (6) is aluminum packing ring.
5. front damper of motorcycle according to claim 4, is characterized in that: the material that described packing ring (6) adopts is aluminium sheet L4-GB3880-1983.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420711269.6U CN204253718U (en) | 2014-11-24 | 2014-11-24 | A kind of front damper of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420711269.6U CN204253718U (en) | 2014-11-24 | 2014-11-24 | A kind of front damper of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253718U true CN204253718U (en) | 2015-04-08 |
Family
ID=52958027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420711269.6U Expired - Fee Related CN204253718U (en) | 2014-11-24 | 2014-11-24 | A kind of front damper of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405815A (en) * | 2014-11-24 | 2015-03-11 | 重庆市亮影工贸有限公司 | Front shock absorber for motorcycles |
-
2014
- 2014-11-24 CN CN201420711269.6U patent/CN204253718U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405815A (en) * | 2014-11-24 | 2015-03-11 | 重庆市亮影工贸有限公司 | Front shock absorber for motorcycles |
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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: 20150408 Termination date: 20151124 |