CN101590894A - Motorcycle bottom fork assembly - Google Patents
Motorcycle bottom fork assembly Download PDFInfo
- Publication number
- CN101590894A CN101590894A CNA2009101042208A CN200910104220A CN101590894A CN 101590894 A CN101590894 A CN 101590894A CN A2009101042208 A CNA2009101042208 A CN A2009101042208A CN 200910104220 A CN200910104220 A CN 200910104220A CN 101590894 A CN101590894 A CN 101590894A
- Authority
- CN
- China
- Prior art keywords
- cushion collar
- central siphon
- motorcycle
- fork assembly
- bottom fork
- 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
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 238000005461 lubrication Methods 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Vibration Dampers (AREA)
Abstract
The invention discloses a motorcycle bottom fork assembly, which comprises a shaft tube and a leg tube, wherein the leg tube is fixedly connected with the shaft tube, the shaft tube is matched with a center shaft of a motorcycle through a buffer component, the buffer component comprises a buffer sleeve and an inner bushing, the buffer sleeve is of a cylindrical structure made of an elastic plastic material, and the outer surface of one side end part of the buffer sleeve forms an annular boss; the two buffer sleeves are respectively sleeved at two ends of the inner circle of the shaft tube in an interference fit manner, two end faces of the shaft tube are abutted against the annular boss, the inner lining sleeve is sleeved in the inner circle of the buffer sleeve, and the surface of the outer circle of the inner lining sleeve and the surface of the inner circle of the buffer sleeve are lubricated by oil; the axial impact of the impact load on the radial direction of the middle shaft and the axial impact on the frame can be reduced, the vibration of the motorcycle is reduced, and the running stability of the motorcycle is ensured.
Description
Technical field
The present invention relates to a kind of motorcycle part, particularly a kind of motorcycle bottom fork assembly.
Background technology
Chain stay is the motor bike vitals, belongs to suspension gear.Chain stay comprises two leg pipes, and two leg pipe leading sections are fixedly connected with central siphon respectively, and the rear end is provided with the trailing wheel axis hole, is used to install trailing wheel.The bottom fork axis pipe box is mated on the motor bike axis, for guaranteeing certain relative rotation, guarantee the damping effect of trailing wheel, need normal-running fit between chain stay central siphon and the axis, can not have the gap and have certain buffering effect, to guarantee corner, to reduce to vibrate and reduce of the impact of impact load trailing wheel axis.For overcoming the above problems, employing is provided with the buffer structure that elastic rubber layer is a main body between central siphon and axis, can eliminate the gap between the two and play buffer action, but this structure can't guarantee chain stay and have enough corners, can't be adapted to motor bike travels under the relatively poor environment of condition, yielding rubber damages easily, and damages the difficult replacing in back, and manufacturing cost is also higher; Comparatively distinct issues are that buffer structure can't cushion from axial impact.For solving the corner problem, between chain stay central siphon and axis, cooperate by needle bearing, guarantee the chain stay corner easily than buffer structure, but needle bearing can't avoid under impact load axis so that vehicle frame to be impacted, and influences the running state and the service life of car load; Needle bearing itself also is easy to generate diameter clearance, strengthens the vibration of motor bike, influences the stability of motorcycle driving.
Therefore, need transform motorcycle bottom fork assembly, can guarantee to closely cooperate between chain stay central siphon and the axis, and have enough corners, buffering effect is good, reduce the impact load centering diameter of axle to impact and the axial impact that vehicle frame is produced, reduce the vibration of motor bike, guarantee the riding stability of motor bike.
Summary of the invention
In view of this, the invention provides a kind of motorcycle bottom fork assembly, can guarantee to closely cooperate between chain stay central siphon and the axis, and have enough corners, buffering effect is good, reduce the impact load centering diameter of axle to impact and the axial impact that vehicle frame is produced, reduce the vibration of motor bike, guarantee the riding stability of motor bike.
Motorcycle bottom fork assembly of the present invention, comprise central siphon and leg pipe, described leg pipe is captiveed joint with central siphon, central siphon cooperates with the motor bike axis by Buffer Unit, described Buffer Unit comprises cushion collar and inner covering, the tubular structure of described cushion collar for making by elastic plastic material, cushion collar one side end outside face forms annular boss; Two cushion collars are placed in circle two ends in the central siphon in the interference fit respectively, and the central siphon both ends of the surface are placed in circle in the cushion collar near annular boss in the inner covering, between inner covering outer round surface and the cushion collar internal circular surfaces oil lubrication is arranged.
Further, described cushion collar is nylon or polytetrafluoroethylene by elastic plastic material;
Further, realize having oil lubrication by being coated with grease between described inner covering outer round surface and the cushion collar internal circular surfaces;
Further, described inner covering is the cushion collar that an integral structure runs through the central siphon two ends.
Beneficial effect of the present invention: motorcycle bottom fork assembly of the present invention, two ends at central siphon are provided with the cushion collar that elastic plastic material is made respectively, and employing has the oil lubrication structure, reduce friction coefficient, both guaranteed to closely cooperate between chain stay central siphon and the axis, can guarantee to have enough corners between chain stay and the axis again, cushion collar is not caused damage because of corner is excessive, prolong the service life of cushion collar, save use cost, and install and change comparatively simple; The cushion collar end is provided with annular boss, make cushion collar not only can reduce the impact load centering diameter of axle to impact, can also make the axial impact that vehicle frame is produced obtain buffering, reduce the vibration of motor bike, guarantee the riding stability of motor bike; The central siphon two ends are provided with cushion collar respectively, change the one-piece construction of prior art, have not only reduced contact surface, reduce friction, also are similar to simple beam structure, have increased behind the cushion collar pressurized axially expansive space, further strengthen buffering effect; Low cost of manufacture of the present invention, simple in structure, install to change simple and convenient.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is Figure 1A place enlarged drawing.
The specific embodiment
Fig. 1 is a structural representation of the present invention, Fig. 2 is Figure 1A place enlarged drawing, as shown in the figure: the motorcycle bottom fork assembly of present embodiment, comprise central siphon 2 and leg pipe 1, described leg pipe 1 is captiveed joint with central siphon 2, as Fig. 1, leg pipe 1 is two, two leg pipe 1 front ends are provided with a central siphon 2 respectively, central siphon 2 cooperates with the motor bike axis by Buffer Unit, described Buffer Unit comprises cushion collar 3 and inner covering 4, the tubular structure of described cushion collar 3 for making by elastomeric material, and cushion collar 3 one side end outside faces form annular boss 31; Two cushion collars 3 are placed in circle two ends in the central siphon 2 in the interference fit respectively, and central siphon 2 both ends of the surface are placed in circle in the cushion collar 3 near annular boss 31 in the inner covering 4, between inner covering 4 outer round surface and cushion collar 3 internal circular surfaces oil lubrication is arranged.
In the present embodiment, described cushion collar 3 is made by nylon material, has certain elasticity and self-lubricating property, and resistance to abrasion is good, is beneficial to guarantee the chain stay corner, and strength of material and elasticity are better, further strengthen buffering effect; Certainly, also can adopt elastoplast such as polytetrafluoroethylene, can both reach goal of the invention; Nylon has resistance to abrasion preferably, higher intensity and elasticity preferably, and institute is preferred for present embodiment.
In the present embodiment, realize that by being coated with grease oil lubrication is arranged between described inner covering 4 outer round surface and cushion collar 3 internal circular surfaces, lubricated operating cycles is longer;
In the present embodiment, described inner covering 4 is the cushion collar 3 that an integral structure runs through the central siphon two ends, makes the Buffer Unit good integrity, improves the ability of resistance to shock loads.
After chain stay welding of the present invention is finished, cushion collar 3 is fitted in central siphon 2 two ends, reach the effect of interference fit, after coating grease (butter), inner covering 4 outer round surface are press fit in the cushion collar 3, can guarantee that installation process do not damage cushion collar 3, can also make grease play lubricating effect, guarantee to realize enough corners between chain stay and the axis.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. motorcycle bottom fork assembly, comprise central siphon and leg pipe, described leg pipe is captiveed joint with central siphon, central siphon cooperates with the motor bike axis by Buffer Unit, it is characterized in that: described Buffer Unit comprises cushion collar and inner covering, the tubular structure of described cushion collar for making by elastic plastic material, cushion collar one side end outside face forms annular boss; Two cushion collars are placed in circle two ends in the central siphon in the interference fit respectively, and the central siphon both ends of the surface are placed in circle in the cushion collar near annular boss in the inner covering, between inner covering outer round surface and the cushion collar internal circular surfaces oil lubrication is arranged.
2. motorcycle bottom fork assembly according to claim 1 is characterized in that: described elastic plastic material is nylon or polytetrafluoroethylene.
3. motorcycle bottom fork assembly according to claim 2 is characterized in that: realize having oil lubrication by being coated with grease between described inner covering outer round surface and the cushion collar internal circular surfaces.
4. motorcycle bottom fork assembly according to claim 3 is characterized in that: described inner covering is the cushion collar that an integral structure runs through the central siphon two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101042208A CN101590894A (en) | 2009-06-30 | 2009-06-30 | Motorcycle bottom fork assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101042208A CN101590894A (en) | 2009-06-30 | 2009-06-30 | Motorcycle bottom fork assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101590894A true CN101590894A (en) | 2009-12-02 |
Family
ID=41405822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101042208A Pending CN101590894A (en) | 2009-06-30 | 2009-06-30 | Motorcycle bottom fork assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101590894A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019990A (en) * | 2010-12-10 | 2011-04-20 | 重庆隆鑫机车有限公司 | Motorcycle bottom fork mounting assembly and motorcycle thereof |
| CN106828751A (en) * | 2017-01-13 | 2017-06-13 | 力帆实业(集团)股份有限公司 | A kind of rear fork of motorcycle assembling structure |
-
2009
- 2009-06-30 CN CNA2009101042208A patent/CN101590894A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019990A (en) * | 2010-12-10 | 2011-04-20 | 重庆隆鑫机车有限公司 | Motorcycle bottom fork mounting assembly and motorcycle thereof |
| CN102019990B (en) * | 2010-12-10 | 2013-05-15 | 重庆隆鑫机车有限公司 | Motorcycle bottom fork mounting assembly and motorcycle thereof |
| CN106828751A (en) * | 2017-01-13 | 2017-06-13 | 力帆实业(集团)股份有限公司 | A kind of rear fork of motorcycle assembling structure |
| CN106828751B (en) * | 2017-01-13 | 2022-06-17 | 力帆实业(集团)股份有限公司 | Motorcycle rear fork assembly structure |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091202 |