CN201180780Y - Floating declutch shift shaft structure of engine - Google Patents
Floating declutch shift shaft structure of engine Download PDFInfo
- Publication number
- CN201180780Y CN201180780Y CNU2008200979500U CN200820097950U CN201180780Y CN 201180780 Y CN201180780 Y CN 201180780Y CN U2008200979500 U CNU2008200979500 U CN U2008200979500U CN 200820097950 U CN200820097950 U CN 200820097950U CN 201180780 Y CN201180780 Y CN 201180780Y
- Authority
- CN
- China
- Prior art keywords
- shift shaft
- declutch shift
- spring
- shifting fork
- shaft
- 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.)
- Expired - Fee Related
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a floating type shifting fork shaft structure for an engine, which comprises a shifting fork, a shifting fork shaft, and a crank case. The floating type shifting fork shaft structure is characterized in that a spring hole is formed at each end of the clutch shift shaft, a spring is arranged inside each spring hole, and one end of the spring contacts with crank case; and the axial line of the spring hole is parallel or overlapped with the shaft line of the shifting fork shaft. The floating type clutch shift shaft structure has self-adjusting function, so as to eliminate clamping stagnation liability between the shifting fork and the shifting fork shaft, thereby reducing operating density and improving operating comfort, improves the sensitivity and the reliability of gear shifting operation, and realizes reliable gear shift.
Description
Technical field
The utility model relates to a kind of appurtenances of motorcycle engine gearshift, especially the floating type declutch shift shaft structure in the motorcycle engine gearshift.
Background technique
The function of the speed variator system of motorcycle engine mainly realizes by mechanisms such as shifting cam axle, shift fork and declutch shift shafts.After each system of motor was in place, declutch shift shaft was mounted on the interior relevant position of crankcase, and the shift fork sky is enclosed within on the declutch shift shaft, and the one end yoke is on corresponding gear, and the other end then is inserted in the shape wire casing of shifting cam axle.The driver will realize the conversion of gear by change pedal.Usually, when the driver steps on change pedal, gearshift can drive the shifting cam axle and rotate, its rotation then can make its shape wire casing and shift fork produce slide relative, and shift fork is along the axial motion of declutch shift shaft, and the motion of shift fork drives that corresponding gear slides on axle separately and with the coupling gear engagement, thereby realize the conversion of gear.The declutch shift shaft of common motor is mounted between two crankcases, and the two ends of declutch shift shaft are inserted in respectively in separately the mounting hole with Spielpassung.Declutch shift shaft has only certain clearance in the axial direction and between two crankcases.When the beginning gear shift operation, can be between shift fork meeting and the declutch shift shaft by the relative static slide relative that becomes, because between shift fork and the declutch shift shaft is not definitely smooth, so can producing bigger resistance when becoming kinetic friction, stiction impel declutch shift shaft to produce the direction that resistance is complied with in motion in the axial direction, but when the declutch shift shaft end face moves to crankcase even at the cost of one's life, declutch shift shaft just can not be complied with surface friction drag, the slip of shift fork on declutch shift shaft will produce catching phenomenon, and when shift fork and declutch shift shaft poor fit, this catching phenomenon can be more obvious.The driver is when operation, and the dynamics or the repetitive operation that then must strengthen gear shift operation overcome catching phenomenon, realizes gearshift.
So above-mentioned engine gear mechanism is unfavorable for finishing smoothly of gear shift operation, has strengthened driver's manipulation strength, has reduced operation comfort.
Summary of the invention
The purpose of this utility model is at the prior art above shortcomings, and a kind of floating type declutch shift shaft structure of motor speed variator system is provided.Characteristics such as it can effectively reduce the intensity of driver's gear shift operation, improves the travelling comfort of gear shift operation, strengthens the sensitivity and the reliability of gear-change operation, and it is reliable to have principle simultaneously, simple in structure.
The technical solution of the utility model: the floating type declutch shift shaft structure of motor, comprise shift fork, declutch shift shaft, crankcase, it is characterized in that: the two ends at declutch shift shaft are provided with spring eye, and spring is set in spring eye, and an end of spring contacts with crankcase;
Further feature is: the axis of spring eye parallels or overlaps with the axis of declutch shift shaft;
Be arranged on the big or small identical of spring in the spring eye at left and right two ends.
Floating type declutch shift shaft of the present utility model mechanism with respect to prior art, has following characteristics:
1, has self-regulating effect, the clamping stagnation tendency between shift fork and the declutch shift shaft can be eliminated, reduced manipulation strength, improved operation comfort.When shift fork on declutch shift shaft during setting in motion, reason owing to frictional force, shift fork can drive declutch shift shaft toward same direction motion, and spring is because self characteristics abdicates certain space can for the motion of declutch shift shaft, and to elastic force opposite of declutch shift shaft with moving direction, at this moment, declutch shift shaft has just been complied with the moving direction of shift fork.When shift fork has just begun by relative static conditions displacement relative movement state, can produce bigger surface friction drag between the two, if the two poor fit, then can produce the clamping stagnation tendency, because the effect of spring, declutch shift shaft then can be complied with this tendency, and allow declutch shift shaft that certain mobile space is arranged in the axial direction, again because declutch shift shaft and crankcase are Spielpassung, declutch shift shaft can produce certain shaking phenomenon under the effect of lifting of spring, add the elastic force effect of spring to declutch shift shaft, unexpected the reducing of surface friction drag meeting between shift fork and the declutch shift shaft, the relative status that makes the two becomes sliding friction by static friction moment, realizes gearshift.
2, strengthen the sensitivity and the reliability of gear-change operation, realize reliable gear shift.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the utility model structure diagram;
Embodiment
In Fig. 1,1-shift fork, 2-declutch shift shaft, 3-spring eye, 4-spring, 5-crankcase;
The floating type declutch shift shaft of motor of the present utility model mechanism comprises shift fork 1, declutch shift shaft 2, crankcase 5, and shift fork 1 adopts common gap fiting mode, is enclosed within on the declutch shift shaft 2 by Spielpassung, can drive declutch shift shaft 2 and rotate.The two ends of declutch shift shaft 2 are installed on the crankcase 5 by common Spielpassung, are connected in the mounting hole of crankcase 5.Improvement of the present utility model is at the two ends of declutch shift shaft 2 spring eye 3 to be set all, and best set-up mode is that the axis of spring eye 3 parallels or overlaps with the axis of declutch shift shaft 2, and spring eye 3 physical dimensions at declutch shift shaft 2 two ends are identical, the position is symmetrical; Spring 4 all is set in spring eye 3, and an end of spring 4 contacts with crankcase 5, promptly chooses suitable spring 4, make spring 4 in being installed to spring eye 3 after, an end of spring 4 is pressed on the crankcase 5.In order to strengthen the exchange of part, the size, the model that are arranged on the spring 4 in the spring eye 3 at declutch shift shaft 2 left and right two ends are identical.When the clamping stagnation tendency takes place with declutch shift shaft 2 in shift fork 1, declutch shift shaft 2 can produce and shift fork 1 unidirectional motion, spring 3 is because self characteristics, the effect that can allow declutch shift shaft 2 have a quilt to lift, again because declutch shift shaft 2 is Spielpassung with crankcase 4, so declutch shift shaft 2 can produce and rock when the clamping stagnation tendency takes place, thereby the clamping stagnation tendency is eliminated.
In the entire mechanism working procedure, spring 4 must not be deviate from from the spring eye 3 of declutch shift shaft 2, and declutch shift shaft 2 must not be deviate from from the mounting hole of crankcase 5, keeps the annexation with crankcase 5.Declutch shift shaft 2 and crankcase 5 have rational gap in the axial direction to guarantee the proper functioning of mechanism.
Claims (3)
1, the floating type declutch shift shaft structure of motor, comprise shift fork (1), declutch shift shaft (2), crankcase (5), it is characterized in that: at the two ends of declutch shift shaft (2) spring eye (3) is set, spring (4) is set in spring eye (3), an end of spring (4) contacts with crankcase (5).
2, the floating type declutch shift shaft structure of motor according to claim 1 is characterized in that: the axis of spring eye (3) parallels or overlaps with the axis of declutch shift shaft (2).
3, the floating type declutch shift shaft structure of motor according to claim 1 and 2 is characterized in that: be arranged on the big or small identical of spring (4) in the spring eye (3) at left and right two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200979500U CN201180780Y (en) | 2008-03-31 | 2008-03-31 | Floating declutch shift shaft structure of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200979500U CN201180780Y (en) | 2008-03-31 | 2008-03-31 | Floating declutch shift shaft structure of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180780Y true CN201180780Y (en) | 2009-01-14 |
Family
ID=40250278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200979500U Expired - Fee Related CN201180780Y (en) | 2008-03-31 | 2008-03-31 | Floating declutch shift shaft structure of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180780Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851172A (en) * | 2012-12-07 | 2014-06-11 | 光阳工业股份有限公司 | Gear shifting mechanism of engine |
| CN108413023A (en) * | 2018-05-14 | 2018-08-17 | 安徽合力股份有限公司 | A kind of adjustment mechanism for fork truck shift lever axial gap |
-
2008
- 2008-03-31 CN CNU2008200979500U patent/CN201180780Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851172A (en) * | 2012-12-07 | 2014-06-11 | 光阳工业股份有限公司 | Gear shifting mechanism of engine |
| CN103851172B (en) * | 2012-12-07 | 2017-07-04 | 光阳工业股份有限公司 | The shifter of engine |
| CN108413023A (en) * | 2018-05-14 | 2018-08-17 | 安徽合力股份有限公司 | A kind of adjustment mechanism for fork truck shift lever axial gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151119 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Patentee after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: Zheng Jie 400050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Patentee before: Chongqing Jianshe Motorcycle Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20170331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |