CN111637223A - Anti-disengaging structure for shifting fork bushing of gearbox - Google Patents
Anti-disengaging structure for shifting fork bushing of gearbox Download PDFInfo
- Publication number
- CN111637223A CN111637223A CN202010568625.3A CN202010568625A CN111637223A CN 111637223 A CN111637223 A CN 111637223A CN 202010568625 A CN202010568625 A CN 202010568625A CN 111637223 A CN111637223 A CN 111637223A
- Authority
- CN
- China
- Prior art keywords
- shifting fork
- gearbox
- assembling
- disengaging
- bush
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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
-
- 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
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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
- F16H57/00—General details of gearing
Abstract
The invention provides a gearbox shifting fork bush anti-disengaging structure, which comprises: the declutch shift shaft that the axial link up the setting, the both ends of declutch shift shaft form the fitting end, the inner peripheral side of fitting end forms the fitting surface, is provided with anti-disengaging structure on the fitting end of arbitrary end, anti-disengaging structure includes: and a projection formed on the mounting surface of the mounting end. According to the anti-disengaging structure for the shifting fork bush of the gearbox, the protruding structure is arranged on the assembling surface of the assembling end of the shifting fork shaft, so that interference assembly is facilitated during assembly of the shifting fork, the assembling strength of the shifting fork is improved, the anti-disengaging effect is achieved, and the mechanical stability of the shifting fork during transmission is effectively guaranteed.
Description
Technical Field
The invention relates to the technical field of automobile transmission, in particular to an anti-disengaging structure for a shifting fork bushing of a gearbox.
Background
The shifting fork is mainly used for shifting gears of a clutch, is a component on an automobile gearbox, is connected with a speed changing handle, is positioned at the lower end of the handle, and shifts a middle speed changing wheel to change the input/output speed ratio. When the shifting fork is assembled, two ends of a shifting fork shaft of the shifting fork are required to be nested on the bushing, however, the problem of falling prevention of the existing shifting fork is solved when the shifting fork is nested and installed, and the shifting fork is ensured to have good mechanical stability during transmission. Therefore, it is necessary to provide a further solution to solve the anti-separation problem.
Disclosure of Invention
The invention aims to provide an anti-disengaging structure for a shifting fork bushing of a gearbox, which overcomes the defects in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a gearbox shift fork bush anti-disengaging structure, it includes: the declutch shift shaft that the axial link up the setting, the both ends of declutch shift shaft form the fitting end, the inner peripheral side of fitting end forms the fitting surface, is provided with anti-disengaging structure on the fitting end of arbitrary end, anti-disengaging structure includes: and a projection formed on the mounting surface of the mounting end.
As an improvement of the anti-disengaging structure of the gearbox shifting fork lining, the anti-disengaging structure is a protruding part extruded from the assembling surface in a stamping mode.
As an improvement of the anti-disengaging structure of the gearbox shifting fork lining, the bulge part is convexly arranged from the edge position of the assembly surface along the radial direction to the central position.
As an improvement of the anti-disengaging structure of the gearbox shifting fork lining, a step surface which is continuously arranged in the circumferential direction is formed at the edge position of the assembling surface, and the bulge is formed on the step surface.
As the improvement of the anti-disengaging structure of the gearbox shifting fork bush, the plurality of the convex parts are arranged at intervals in the circumferential direction from the edge of the assembling surface.
As an improvement of the anti-disengaging structure of the gearbox shifting fork lining, the anti-disengaging structure is a protruding part which extends out of the assembling surface in an integrated forming mode.
As an improvement of the anti-disengaging structure of the gearbox shifting fork lining, the bulge part is arranged in a protruding mode from the edge position or the inner position of the assembly surface to the center position in the radial direction.
As an improvement of the anti-disengaging structure of the gearbox shifting fork lining, when the protruding part is located at the edge of the assembling surface, a step surface which is continuously arranged in the circumferential direction is further formed at the edge of the assembling surface, and the protruding part is formed on the step surface.
As the improvement of the anti-disengaging structure of the gearbox shifting fork lining, the number of the convex parts is multiple, and the convex parts are circumferentially arranged at intervals from the edge position or the inner position of the assembly surface.
Compared with the prior art, the invention has the beneficial effects that: according to the anti-disengaging structure for the shifting fork bush of the gearbox, the protruding structure is arranged on the assembling surface of the assembling end of the shifting fork shaft, so that interference assembly is facilitated during assembly of the shifting fork, the assembling strength of the shifting fork is improved, the anti-disengaging effect is achieved, and the mechanical stability of the shifting fork during transmission is effectively guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of an anti-slip structure of a transmission fork bush according to an embodiment of the invention.
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.
As shown in fig. 1, an embodiment of the present invention provides a transmission fork bush anti-slip structure, which includes: the shifting fork shaft 1 is axially arranged in a penetrating mode, two ends of the shifting fork shaft 1 form assembling ends, and the inner peripheral side face of each assembling end forms an assembling face 11. Therefore, when the anti-dropping structure of the gearbox shifting fork bush is assembled, the assembling ends at the two ends of the anti-dropping structure are nested on the bush, and the assembling surface 11 of the anti-dropping structure is in contact fit with the bush.
In order to realize gearbox shift fork bush anti-disengaging structure's interference fit, be provided with anti-disengaging structure 2 on the assembly end of arbitrary end, this anti-disengaging structure 2 includes: a projection formed on the fitting surface 11 of the fitting end. When so assembling, the bellying can firmly lean on with the nested bush of gearbox shift fork bush anti-disengaging structure mutually, and the restriction bush is at axial displacement, and then plays the mesh of anticreep, mechanical stability when having guaranteed the shift fork transmission effectively. According to actual requirements, the number of the protruding portions can be set to be a plurality, so that the plurality of the protrusions apply uniform interference fit acting force to the bushing from the circumferential direction.
In one embodiment, the retaining structure 2 may be a protrusion extruded from the mounting surface 11 by stamping, according to different molding methods. Preferably, the protrusion protrudes from the edge of the mounting surface 11 to the center in the radial direction.
The forming principle is that the edge position of the assembling surface 11 forms a groove structure by stamping of the stamping head, and the edge of the groove structure forms protruding burrs while the groove structure is formed, so that the protruding burrs form the protruding part. Simultaneously, the control punching press direction keeps unanimous with the relative declutch shift shaft 1's of bush assembly direction, and "deckle edge" that so form sets up along assembly direction slope, when realizing interference fit, still can avoid causing the interference to the assembly.
In the present embodiment, when there are a plurality of projections, the plurality of projections are arranged at intervals in the circumferential direction from the edge position of the mounting surface 11. Meanwhile, for the purpose of limiting during assembly, a circumferential continuously arranged step surface 12 is formed at the edge position of the assembly surface 11, and a convex part is formed on the step surface 12.
In another embodiment, the anti-dropping structure 2 may be a protrusion protruding from the mounting surface 11 by an integral molding method, depending on the molding method. Preferably, the protrusion portion is protruded from an edge position or an inner position of the mounting surface 11 toward a center position in a radial direction.
The integral molding may be machining or powder injection molding. At this time, in order to avoid interference on the assembly while achieving the interference fit, the protruding portion is disposed obliquely along the assembly direction, that is, a surface of the protruding portion which is first contacted with other components is an inclined surface.
In the present embodiment, the number of the projections is plural, and the projections are arranged at intervals in the circumferential direction from the edge position or the inner position of the mounting surface 11. Meanwhile, for the purpose of limiting during assembly, a circumferentially and continuously arranged step surface is formed at the edge position of the assembly surface 11. When the projection is located at the edge of the mounting surface 11, the projection is formed on the step surface.
In conclusion, the anti-disengaging structure for the shifting fork bush of the gearbox is beneficial to interference assembly during shifting fork assembly by arranging the protruding structure on the assembly surface of the assembly end of the shifting fork shaft, improves the assembly strength of the shifting fork, plays a role in anti-disengaging, and effectively ensures the mechanical stability of the shifting fork during transmission.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a gearbox shift fork bush anti-disengaging structure which characterized in that, gearbox shift fork bush anti-disengaging structure includes: the declutch shift shaft that the axial link up the setting, the both ends of declutch shift shaft form the fitting end, the inner peripheral side of fitting end forms the fitting surface, is provided with anti-disengaging structure on the fitting end of arbitrary end, anti-disengaging structure includes: and a projection formed on the mounting surface of the mounting end.
2. The transmission shift fork bushing anti-slip structure according to claim 1, wherein the anti-slip structure is a boss extruded from the mounting surface by stamping.
3. The transmission fork bushing anti-slip structure according to claim 2, wherein the protrusion protrudes from an edge of the mounting surface to a center of the mounting surface in a radial direction.
4. The gearbox shift fork bush anti-drop structure according to claim 2 or 3, wherein a circumferentially continuously arranged step surface is further formed at an edge position of the assembling surface, and the boss is formed on the step surface.
5. The gearbox shift fork bush anti-drop structure according to claim 2 or 3, wherein the plurality of protrusions are arranged at intervals in the circumferential direction from the edge position of the assembling surface.
6. The transmission shift fork bushing anti-slip structure according to claim 1, wherein the anti-slip structure is a boss protruding from the mounting surface by way of integral molding.
7. The transmission fork bushing anti-slip structure according to claim 2, wherein the protrusion protrudes from an edge position or an inner position of the mounting surface to a center position in a radial direction.
8. The anti-drop structure for the shifting fork bush of the gearbox as recited in claim 7, wherein when the protrusion is located at the edge position of the assembling surface, a step surface which is continuously arranged in the circumferential direction is further formed at the edge position of the assembling surface, and the protrusion is formed on the step surface.
9. The gearbox shift fork bush anti-drop structure of claim 7, wherein the plurality of protrusions are arranged at intervals in a circumferential direction from an edge position or an inner position of the assembling surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568625.3A CN111637223A (en) | 2020-06-19 | 2020-06-19 | Anti-disengaging structure for shifting fork bushing of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568625.3A CN111637223A (en) | 2020-06-19 | 2020-06-19 | Anti-disengaging structure for shifting fork bushing of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111637223A true CN111637223A (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010568625.3A Pending CN111637223A (en) | 2020-06-19 | 2020-06-19 | Anti-disengaging structure for shifting fork bushing of gearbox |
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| CN (1) | CN111637223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022061848A1 (en) * | 2020-09-28 | 2022-03-31 | 舍弗勒技术股份两合公司 | Bushing for fork and fork assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2554724A1 (en) * | 2004-01-29 | 2005-08-11 | Magna Drivetrain Ag & Co Kg | A transmission comprising a displaceable shift fork and an actuator |
| DE102007000414A1 (en) * | 2006-07-31 | 2008-02-07 | Aisin Ai Co., Ltd., Nishio | Switching mechanism for manual gearbox, has inertia mass movable in radial direction of inertial lever, where distance between inertia mass and axial middle line is larger when inertia lever is in neutral position |
| CN201238116Y (en) * | 2008-07-21 | 2009-05-13 | 中航光电科技股份有限公司 | Self-locking plug type electric connector plug and self-locking plug type electric connector |
| CN104214176A (en) * | 2013-11-01 | 2014-12-17 | 中航光电科技股份有限公司 | Shaft connecting assembly and shaft assembly |
| CN104235354A (en) * | 2014-08-14 | 2014-12-24 | 江西国兴集团兴国齿轮箱拨叉有限公司 | Novel shifting fork for commercial vehicle |
| CN109944938A (en) * | 2019-03-18 | 2019-06-28 | 西安法士特汽车传动有限公司 | A kind of automatic gear shift actuating mechanism |
| CN209083737U (en) * | 2018-09-21 | 2019-07-09 | 陈庆元 | A kind of anticreep locking mechanism for telescoping tube |
| CN209409787U (en) * | 2018-12-17 | 2019-09-20 | 宁波景升明诚汽车科技股份有限公司 | A kind of engine support frame for preventing bushing to be detached from |
-
2020
- 2020-06-19 CN CN202010568625.3A patent/CN111637223A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2554724A1 (en) * | 2004-01-29 | 2005-08-11 | Magna Drivetrain Ag & Co Kg | A transmission comprising a displaceable shift fork and an actuator |
| DE102007000414A1 (en) * | 2006-07-31 | 2008-02-07 | Aisin Ai Co., Ltd., Nishio | Switching mechanism for manual gearbox, has inertia mass movable in radial direction of inertial lever, where distance between inertia mass and axial middle line is larger when inertia lever is in neutral position |
| CN201238116Y (en) * | 2008-07-21 | 2009-05-13 | 中航光电科技股份有限公司 | Self-locking plug type electric connector plug and self-locking plug type electric connector |
| CN104214176A (en) * | 2013-11-01 | 2014-12-17 | 中航光电科技股份有限公司 | Shaft connecting assembly and shaft assembly |
| CN104235354A (en) * | 2014-08-14 | 2014-12-24 | 江西国兴集团兴国齿轮箱拨叉有限公司 | Novel shifting fork for commercial vehicle |
| CN209083737U (en) * | 2018-09-21 | 2019-07-09 | 陈庆元 | A kind of anticreep locking mechanism for telescoping tube |
| CN209409787U (en) * | 2018-12-17 | 2019-09-20 | 宁波景升明诚汽车科技股份有限公司 | A kind of engine support frame for preventing bushing to be detached from |
| CN109944938A (en) * | 2019-03-18 | 2019-06-28 | 西安法士特汽车传动有限公司 | A kind of automatic gear shift actuating mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022061848A1 (en) * | 2020-09-28 | 2022-03-31 | 舍弗勒技术股份两合公司 | Bushing for fork and fork assembly |
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Application publication date: 20200908 |