CN103075512A - Shift fork shaft assembly of automotive transmission - Google Patents
Shift fork shaft assembly of automotive transmission Download PDFInfo
- Publication number
- CN103075512A CN103075512A CN2012100500770A CN201210050077A CN103075512A CN 103075512 A CN103075512 A CN 103075512A CN 2012100500770 A CN2012100500770 A CN 2012100500770A CN 201210050077 A CN201210050077 A CN 201210050077A CN 103075512 A CN103075512 A CN 103075512A
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- CN
- China
- Prior art keywords
- shift fork
- fork shaft
- shift
- shaft assembly
- shift 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.)
- Pending
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Abstract
The invention relates to a shift fork shaft assembly of an automotive transmission. An automobile can be conveniently shifted by the shift fork shaft assembly. The shift fork shaft assembly comprises a left shift fork shaft, a shift groove, a shift fork, a connecting pin and a right shift fork shaft which are sequentially connected, wherein the shift groove and the shift fork are positioned at the same side of the left shift fork shaft, but the traditional shift groove and the traditional shift fork are positioned at the different sides of the left shift fork shaft. In the shifting process, the shift groove and the shift fork bear force and generate opposite torque directions on the shift fork shaft, and the sum of torques is far less than that of the traditional structure. The two ends of the shift fork shaft assembly need pressure to balance the sum of the torques, therefore, the pressure is much less than that of the traditional structure, the generated friction force is also much less, and the speed changing and shifting operation is also convenient.
Description
Affiliated technical field
The present invention relates to a kind of automobile gearshift fork axle assembly.
Background technique
At present, existing automobile gearshift fork axle assembly, allocating slot and shift fork are positioned at the heteropleural of left declutch shift shaft, speed changer is in shift process, allocating slot is identical with the stressed torque direction that declutch shift shaft is produced of shift fork, the moment of torsion that the declutch shift shaft two ends need larger pressure to come balance allocating slot and shift fork that declutch shift shaft is produced, and this power will make declutch shift shaft produce very large frictional force in moving process, thereby make gear shift operation heavy, big-and-middle-sized shifting vehicle gearbox is obvious especially.Although improve in process of production precision the heavy phenomenon of gearshift is eased, can't solves the heavy problem of gearshift at all.
Summary of the invention
Cause the heavy defective of shifting gears in order to overcome existing automobile gearshift fork axle assembly structure, the invention provides an automobile gearshift fork axle assembly, it can reduce the steering force of speed changer in shift process, and simple in structure.
The technical solution adopted for the present invention to solve the technical problems is: left declutch shift shaft, allocating slot, shift fork, connecting pin, right declutch shift shaft are linked in sequence, and allocating slot and shift fork all are positioned at the same side of left declutch shift shaft, and conventional construction is at heteropleural.Speed changer is in shift process, and the stressed torque direction that declutch shift shaft is produced of allocating slot of the present invention and shift fork is opposite, and the conventional construction direction is identical, and these two moment of torsion sums are much smaller than the moment of torsion sum of conventional construction.Because of the moment of torsion that the declutch shift shaft two ends need pressure to come balance allocating slot and shift fork that declutch shift shaft is produced, this force rate conventional construction of the present invention is much smaller, and declutch shift shaft consequent frictional force in moving process is just much smaller.Thereby make gear shift operation light.
The invention has the beneficial effects as follows, the shift of transmission steering force is very little, handles light, simple in structure.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structural drawing of the present invention.
1. left declutch shift shafts among the figure, 2. allocating slot, 3. shift fork, 4. connecting pin, 5. right declutch shift shaft.
Embodiment
In Fig. 1, left declutch shift shaft 1, allocating slot 2, right declutch shift shaft 5, shift fork 3 connect by connecting pin 4, and allocating slot 2 and shift fork 3 all are positioned at the same side of left declutch shift shaft 1 and right declutch shift shaft 5.Speed changer is in shift process, allocating slot 2 stressed F1 and shift fork 3 stressed F0 are opposite to the torque direction of left declutch shift shaft 1 and 5 generations of right declutch shift shaft, be the poor of two moments of torsion, and the torque direction of conventional construction is identical, be two moment of torsion sums, so the moment of torsion sum that the difference of declutch shift shaft is subject to is more much smaller than conventional construction.Left declutch shift shaft 1 and right declutch shift shaft 5 outer ends need pressure to come this moment of torsion sum of balance, so this pressure ratio conventional construction is much smaller, consequent frictional force is also much smaller, and the gear shift operation is also light.
Claims (2)
1. automobile gearshift fork axle assembly, left declutch shift shaft, allocating slot, shift fork, connecting pin, right declutch shift shaft are linked in sequence, and it is characterized in that: allocating slot and shift fork all are positioned at the same side of left declutch shift shaft.
2. automobile gearshift fork axle assembly according to claim 1 is characterized in that: allocating slot adopts with left declutch shift shaft and is threaded, and allocating slot forever is connected with right declutch shift shaft employing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100500770A CN103075512A (en) | 2012-02-22 | 2012-02-22 | Shift fork shaft assembly of automotive transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100500770A CN103075512A (en) | 2012-02-22 | 2012-02-22 | Shift fork shaft assembly of automotive transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103075512A true CN103075512A (en) | 2013-05-01 |
Family
ID=48152151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100500770A Pending CN103075512A (en) | 2012-02-22 | 2012-02-22 | Shift fork shaft assembly of automotive transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103075512A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295736A (en) * | 2014-08-10 | 2015-01-21 | 江西国兴集团兴国齿轮箱拨叉有限公司 | Shift shaft for rear auxiliary box of heavy duty vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0702172A1 (en) * | 1994-09-14 | 1996-03-20 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Manual transmission |
| KR20000045749A (en) * | 1998-12-30 | 2000-07-25 | 소진관 | Device for preventing backward miss-operation of manual shifting vehicle |
| KR20000045753A (en) * | 1998-12-30 | 2000-07-25 | 소진관 | Shift apparatus of manual speed change gear for use in automobile |
| KR100448657B1 (en) * | 2002-06-29 | 2004-09-13 | 현대자동차주식회사 | The shift control apparatus of manaul transmission |
| CN1865735A (en) * | 2006-06-22 | 2006-11-22 | 上海交通大学 | Direct shift mechanism of mechanical automatic transmission motor |
-
2012
- 2012-02-22 CN CN2012100500770A patent/CN103075512A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0702172A1 (en) * | 1994-09-14 | 1996-03-20 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Manual transmission |
| KR20000045749A (en) * | 1998-12-30 | 2000-07-25 | 소진관 | Device for preventing backward miss-operation of manual shifting vehicle |
| KR20000045753A (en) * | 1998-12-30 | 2000-07-25 | 소진관 | Shift apparatus of manual speed change gear for use in automobile |
| KR100448657B1 (en) * | 2002-06-29 | 2004-09-13 | 현대자동차주식회사 | The shift control apparatus of manaul transmission |
| CN1865735A (en) * | 2006-06-22 | 2006-11-22 | 上海交通大学 | Direct shift mechanism of mechanical automatic transmission motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295736A (en) * | 2014-08-10 | 2015-01-21 | 江西国兴集团兴国齿轮箱拨叉有限公司 | Shift shaft for rear auxiliary box of heavy duty vehicle |
| CN104295736B (en) * | 2014-08-10 | 2016-10-05 | 江西省广蓝传动科技股份有限公司 | Case shift fork axle is paid after a kind of heavy goods vehicles |
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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: 20130501 |