CN111219484A - Shifting fork structure of gearbox - Google Patents
Shifting fork structure of gearbox Download PDFInfo
- Publication number
- CN111219484A CN111219484A CN201811426484.0A CN201811426484A CN111219484A CN 111219484 A CN111219484 A CN 111219484A CN 201811426484 A CN201811426484 A CN 201811426484A CN 111219484 A CN111219484 A CN 111219484A
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- CN
- China
- Prior art keywords
- limiting
- cylinder
- block
- shifting fork
- fixing
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- 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.)
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Classifications
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- 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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
Abstract
The invention discloses a shifting fork structure of a gearbox, which comprises a shifting fork block and a shifting fork shaft, wherein one end of the shifting fork block is provided with a fixing hole, the shifting fork block is sleeved outside the shifting fork shaft in a sliding manner through the fixing hole, the outer side of the shifting fork block is fixedly provided with a locking device, the shifting fork block is fixed with the shifting fork shaft through the locking device, the locking device comprises a fixing cylinder, a locking shaft, a limiting cylinder, a limiting block, a limiting spring and a pull rod, one end of the fixing cylinder is fixed with the side wall of the shifting fork block, the inside of the fixing cylinder is communicated with the fixing hole, a fixing groove matched with the locking shaft is arranged at the position of the shifting fork shaft corresponding to the fixing cylinder, the locking shaft is arranged inside the fixing cylinder in a sliding manner, one end of the locking shaft is inserted into the fixing groove, the shifting fork structure of the gearbox can fix the shifting fork block and the shifting fork shaft through the locking device, and changes the traditional elastic pin fixing manner, the mounting and dismounting of the pulling fork block are more convenient, and the waste of the elastic pin is prevented.
Description
Technical Field
The invention relates to the technical field of shifting fork application, in particular to a shifting fork structure of a gearbox.
Background
The shifting fork is a component on the automobile gearbox, is connected with a speed change handle and is positioned at the lower end of the handle, and shifts a middle speed change wheel to change the input/output speed ratio, and the shifting fork is mainly used for shifting gears of a clutch.
The fixed of current fork pulling block and fork pulling shaft is fixed through the elastic pin mostly, and during installation and debugging, take off the elastic pin very troublesome, has reduced the work efficiency of the debugging of fork pulling block, and in addition, the shift fork if need be maintained, generally all be after long-time the use, can probably be rusted, leads to the elastic pin card to die. Therefore, a shifting fork structure of the gearbox is provided.
Disclosure of Invention
The invention aims to provide a shifting fork structure of a gearbox, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a shifting fork structure of a gearbox comprises a shifting fork block and a shifting fork shaft, wherein one end of the shifting fork block is provided with a fixing hole, the shifting fork block is sleeved on the outer side of the shifting fork shaft in a sliding manner through the fixing hole, a locking device is fixed on the outer side of the shifting fork block, the shifting fork block is fixed with the shifting fork shaft through the locking device, the locking device comprises a fixing cylinder, a locking shaft, a limiting cylinder, a limiting block, a limiting spring and a pull rod, one end of the fixing cylinder is fixed with the side wall of the shifting fork block, the inside of the fixing cylinder is communicated with the fixing hole, a fixing groove matched with the locking shaft is arranged at the position of the shifting fork shaft corresponding to the fixing cylinder, the locking shaft is arranged on the inner side of the fixing cylinder in a sliding manner, one end of the locking shaft is inserted into the fixing groove, the limiting cylinder is fixed at the top of the fixing cylinder and is communicated with the inside of the fixing cylinder, the top of the limiting cylinder is sealed, a limiting groove is arranged at, the limiting block is in sliding fit with the inner side of the limiting barrel, one end of the limiting block is inserted into the limiting groove, the other end of the limiting block is fixed to the inner wall of the top of the limiting barrel through the limiting spring, the pull rod is located on the inner side of the limiting spring, one end of the pull rod is fixed to the limiting block, the other end of the pull rod extends to the outer side of the top end of the limiting barrel, and the pull rod is in sliding connection with the limiting barrel.
Preferably, the angle between the limiting cylinder and the fixed cylinder is 80 degrees.
Preferably, the shifting fork block, the limiting cylinder and the fixing cylinder are of an integrated structure.
Preferably, the top end of the pull rod is provided with a through hole, and the pull ring is sleeved in the through hole in a sliding manner.
Preferably, a baffle is fixed at one end of the locking shaft, which is far away from the fixing groove, and an anti-skid protrusion is arranged on the outer side of the baffle.
Preferably, the lower end face of the limiting block is an arc face, the limiting groove is also an arc face, the circle center of the arc face of the lower end face of the limiting block and the circle center of the arc face of the limiting groove are not on the same straight line, and the limiting block can drive the locking shaft to slide left and right when moving along the axis of the limiting block.
Preferably, the bottom end of the limiting block is of a circular arc structure.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can fix the shifting fork block and the shifting fork shaft through the locking device, changes the traditional elastic pin fixing mode, makes the mounting and dismounting of the shifting fork block more convenient, and prevents the waste of the elastic pin.
2. The angle between the limiting cylinder and the fixing cylinder is 80 degrees, the top end of the pull rod is provided with a through hole, the pull ring is sleeved in the through hole in a sliding mode, the pull rod can be conveniently exerted with pulling force, a baffle is fixed at one end, away from the fixing groove, of the locking shaft, anti-skidding protrusions are arranged on the outer side of the baffle, the locking shaft can be conveniently pulled out of the fixing groove through the baffle, the bottom end of the limiting block is of a circular arc-shaped structure, and the limiting block can conveniently enter.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a partial cross-sectional view of the present invention.
Fig. 3 is an enlarged view of the area a in fig. 2.
In the figure: 1-pulling fork blocks; 2-fixing holes; 3-pulling the fork shaft; 4-a locking device; 5, fixing the cylinder; 6-locking the shaft; 7-a limiting cylinder; 8-a limiting block; 9-a limit spring; 10-a pull rod; 11-a fixed slot; 12-a limiting groove; 13-a pull ring; 14-baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a shifting fork structure of a gearbox comprises a shifting fork block 1 and a shifting fork shaft 3, wherein one end of the shifting fork block 1 is provided with a fixing hole 2, the shifting fork block 1 is sleeved outside the shifting fork shaft 3 in a sliding mode through the fixing hole 2, a locking device 4 is fixed on the outer side of the shifting fork block 1, the shifting fork block 1 is fixed with the shifting fork shaft 3 through the locking device 4, the locking device 4 comprises a fixing cylinder 5, a locking shaft 6, a limiting cylinder 7, a limiting block 8, a limiting spring 9 and a pull rod 10, one end of the fixing cylinder 5 is fixed with the side wall of the shifting fork block 1, the inside of the fixing cylinder 5 is communicated with the fixing hole 2, a fixing groove 11 matched with the locking shaft 6 is arranged at the position, corresponding to the fixing cylinder 5, of the shifting fork shaft 3, the locking shaft 6 is arranged on the inner side of the fixing cylinder 5 in a sliding mode, one end of the locking shaft 6 is inserted into the fixing groove 11, the limiting cylinder 7 is fixed at the top of the, and the inside intercommunication of a spacing section of thick bamboo 7 and a fixed section of thick bamboo 5, the top of a spacing section of thick bamboo 7 is sealed, the position that locking shaft 6 and a spacing section of thick bamboo 7 correspond is equipped with spacing groove 12, stopper 8 sliding fit is in the inboard of a spacing section of thick bamboo 7, and the one end of stopper 8 is pegged graft in spacing groove 12, and the other end passes through spacing spring 9 and fixes with the inner wall at a spacing section of thick bamboo 7 top, pull rod 10 is located the inboard of spacing spring 9, and the one end of pull rod 10 is fixed with stopper 8, and the other end extends to the outside on a spacing section of thick bamboo 7 top, pull rod 10 and a spacing section of thick.
The angle between the limiting cylinder 7 and the fixing cylinder 5 is 80 degrees, so that the pull rod 10 can be conveniently applied with pulling force.
The limited pulling fork block 1, the limited barrel 7 and the fixed barrel 5 are of an integrated structure, so that the production of the pulling fork block 1 is facilitated.
The top end of the pull rod 10 is provided with a through hole, a pull ring 13 is sleeved in the through hole in a sliding mode, and the pull rod 10 is conveniently applied with pulling force through the pull ring 13.
A baffle plate 14 is fixed at one end of the locking shaft 6 far away from the fixing groove 11, an anti-skid bump is arranged on the outer side of the baffle plate 14, and the locking shaft 6 can be conveniently pulled out of the fixing groove 11 through the baffle plate 14.
The bottom end of the limiting block 8 is of a circular arc-shaped structure, so that the limiting block 8 can conveniently enter the limiting groove 12.
The working principle is as follows: the 6 joints of locking axle are in fixed slot 11, stopper 8 pegs graft in spacing groove 12 under spacing spring 9's elastic force effect, prevent locking axle 6 drunkenness, thereby can fix on pulling out fork axle 3 pulling out fork piece 1, when dismantling pulling out fork piece 1, at first exert pulling force to pull rod 10, make spacing spring 9 shrink, stopper 8 and spacing groove 12 separate, exert pulling force to locking axle 6 again, make locking axle 6 separate with fixed slot 11, locking axle 6 disappears to the joint effect of pulling out fork axle 3, thereby can dismantle pulling out fork piece 1.
The lower end face of the limiting block 8 is an arc face, the limiting groove is also an arc face, the circle center of the arc face of the lower end face of the limiting block 8 and the circle center of the arc face of the limiting groove are not on the same straight line (the size is small, so that the limiting block is not shown in the drawing), and when the limiting block 8 moves along the axis of the limiting block, the locking shaft can be driven to slide left and right. The locking shaft can slide due to the movement of the limiting block 8 caused by occasional vibration, and rust is avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a shifting fork structure of gearbox, includes shifting fork piece (1) and shifting fork axle (3), its characterized in that: the pull-out fork is characterized in that one end of the pull-out fork block (1) is provided with a fixing hole (2), the pull-out fork block (1) is slidably sleeved on the outer side of the pull-out fork shaft (3) through the fixing hole (2), a locking device (4) is fixed on the outer side of the pull-out fork block (1), the pull-out fork block (1) is fixed with the pull-out fork shaft (3) through the locking device (4), the locking device (4) comprises a fixing cylinder (5), a locking shaft (6), a limiting cylinder (7), a limiting block (8), a limiting spring (9) and a pull rod (10), one end of the fixing cylinder (5) is fixed with the side wall of the pull-out fork block (1), the inside of the fixing cylinder (5) is communicated with the fixing hole (2), a fixing groove (11) matched with the locking shaft (6) is arranged at the position, corresponding to the pull-out fork shaft (3) and the fixing cylinder (5), the locking shaft (6) is slidably arranged, and one end of the locking shaft (6) is inserted into the fixing groove (11), the limiting cylinder (7) is fixed at the top of the fixed cylinder (5), the limiting cylinder (7) is communicated with the inside of the fixed cylinder (5), the top of the limiting cylinder (7) is sealed, a limiting groove (12) is arranged at the position, corresponding to the limiting cylinder (7), of the locking shaft (6), the limiting block (8) is in sliding fit with the inner side of the limiting cylinder (7), one end of the limiting block (8) is inserted into the limiting groove (12), the other end of the limiting shaft is fixed with the inner wall of the top of the limiting cylinder (7) through a limiting spring (9), the pull rod (10) is located on the inner side of the limiting spring (9), one end of the pull rod (10) is fixed with the limiting block (8), the other end of the pull rod extends to the outer side of the top end of the limiting cylinder (7), and the pull rod (10) is in sliding connection with the.
2. The shift fork structure of a transmission case according to claim 1, wherein: the angle between the limiting cylinder (7) and the fixed cylinder (5) is 80 degrees.
3. A shift fork structure for a transmission according to claim 2, wherein: the limited pulling fork block (1), the limited barrel (7) and the fixed barrel (5) are of an integrated structure.
4. The shift fork structure of a transmission case according to claim 1, wherein: the top end of the pull rod (10) is provided with a through hole, and a pull ring (13) is sleeved in the through hole in a sliding mode.
5. The shift fork structure of a transmission case according to claim 1, wherein: one end, far away from the fixing groove (11), of the locking shaft (6) is fixed with a baffle plate (14), and anti-skidding protrusions are arranged on the outer side of the baffle plate (14).
6. The shift fork structure of a transmission case according to claim 1, wherein: the bottom end of the limiting block (8) is of a circular arc structure.
7. The shift fork structure of a transmission case according to claim 1, wherein: the lower terminal surface of stopper (8) is the arc surface, spacing groove (12) also are the arc surface, the arc surface centre of a circle of the lower terminal surface of stopper (8) is not on same straight line with the arc surface centre of a circle of spacing groove, stopper (8) when removing along its axis, can drive lock (6) dead axle and control and slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811426484.0A CN111219484A (en) | 2018-11-27 | 2018-11-27 | Shifting fork structure of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811426484.0A CN111219484A (en) | 2018-11-27 | 2018-11-27 | Shifting fork structure of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111219484A true CN111219484A (en) | 2020-06-02 |
Family
ID=70828816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811426484.0A Pending CN111219484A (en) | 2018-11-27 | 2018-11-27 | Shifting fork structure of gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977300A (en) * | 2021-10-08 | 2022-01-28 | 武汉船用机械有限责任公司 | Fixed position follow-up rigid support mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1717492B1 (en) * | 2005-04-27 | 2013-09-18 | Getrag Ford Transmissions GmbH | Method for fixing a signal emitter to shifting yoke |
| CN203322240U (en) * | 2013-06-13 | 2013-12-04 | 安徽华菱汽车有限公司 | Transmission and gear-shifting and locating mechanism thereof |
| CN103671872A (en) * | 2013-12-27 | 2014-03-26 | 北京理工华创电动车技术有限公司 | Electric control mechanical shift actuator of electric vehicle |
| CN203926734U (en) * | 2014-03-14 | 2014-11-05 | 陕西法士特齿轮有限责任公司 | A kind of transmission selector fork structure |
| CN203979369U (en) * | 2014-07-22 | 2014-12-03 | 瑞安市建鑫机械制造有限公司 | Transmission selector fork |
| CN204175946U (en) * | 2014-09-30 | 2015-02-25 | 重庆青山工业有限责任公司 | A kind of gearshift mechanism of manual transmission |
| CN204344904U (en) * | 2014-12-26 | 2015-05-20 | 中国重汽集团大同齿轮有限公司 | Single control lever shaft six shift transmission reverses gear independent mutual interlocking gear |
| CN107300016A (en) * | 2017-07-03 | 2017-10-27 | 格特拉克（江西）传动系统有限公司 | A kind of automatic transmission gear shift fork with decoupling device |
-
2018
- 2018-11-27 CN CN201811426484.0A patent/CN111219484A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1717492B1 (en) * | 2005-04-27 | 2013-09-18 | Getrag Ford Transmissions GmbH | Method for fixing a signal emitter to shifting yoke |
| CN203322240U (en) * | 2013-06-13 | 2013-12-04 | 安徽华菱汽车有限公司 | Transmission and gear-shifting and locating mechanism thereof |
| CN103671872A (en) * | 2013-12-27 | 2014-03-26 | 北京理工华创电动车技术有限公司 | Electric control mechanical shift actuator of electric vehicle |
| CN203926734U (en) * | 2014-03-14 | 2014-11-05 | 陕西法士特齿轮有限责任公司 | A kind of transmission selector fork structure |
| CN203979369U (en) * | 2014-07-22 | 2014-12-03 | 瑞安市建鑫机械制造有限公司 | Transmission selector fork |
| CN204175946U (en) * | 2014-09-30 | 2015-02-25 | 重庆青山工业有限责任公司 | A kind of gearshift mechanism of manual transmission |
| CN204344904U (en) * | 2014-12-26 | 2015-05-20 | 中国重汽集团大同齿轮有限公司 | Single control lever shaft six shift transmission reverses gear independent mutual interlocking gear |
| CN107300016A (en) * | 2017-07-03 | 2017-10-27 | 格特拉克（江西）传动系统有限公司 | A kind of automatic transmission gear shift fork with decoupling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977300A (en) * | 2021-10-08 | 2022-01-28 | 武汉船用机械有限责任公司 | Fixed position follow-up rigid support mechanism |
| CN113977300B (en) * | 2021-10-08 | 2022-08-02 | 武汉船用机械有限责任公司 | Fixed position follow-up rigid support mechanism |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200602 |
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| RJ01 | Rejection of invention patent application after publication |