CN114135665A - Energy storage formula synchronizer shift fork - Google Patents
Energy storage formula synchronizer shift fork Download PDFInfo
- Publication number
- CN114135665A CN114135665A CN202210115845.XA CN202210115845A CN114135665A CN 114135665 A CN114135665 A CN 114135665A CN 202210115845 A CN202210115845 A CN 202210115845A CN 114135665 A CN114135665 A CN 114135665A
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- CN
- China
- Prior art keywords
- fork
- shifting
- shifting fork
- shaft
- synchronizer
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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.)
- Pending
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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
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses an energy storage type synchronizer shifting fork, which is arranged on a shifting fork shaft of a synchronizer, and comprises a shifting fork main body and a spring assembly, wherein the spring assembly is arranged on the shifting fork main body, a first gear column is arranged on the shifting fork shaft, a second gear column is arranged at one end of the spring assembly, and the shifting fork shaft is used for axially storing energy in advance for the shifting fork in the shifting process, so that the carry stroke amount is reduced, the shifting driving power is reduced, the driving time of a servo mechanism is prolonged, the shifting time of the shifting mechanism cannot be delayed, and the two-gear synchronizer and the multi-gear synchronizer adopt the same part structure, so that the production and maintenance cost can be reduced.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to an energy storage type synchronizer shifting fork.
Background
The shifting fork is a component used for pushing a synchronizer gear sleeve to be meshed with and separated from a gear shifting gear in a transmission to realize gear change of the transmission, when the existing synchronizer shifting fork acts, the shifting fork can reach a specified position to realize gear meshing and separating operation only by pushing a certain shifting fork shaft stroke amount, but a certain force is needed in the process, the problem that the gear shifting operation cannot be completed is caused by the deviation of the force and the shifting fork shaft stroke amount, and a certain delay exists in the process of realizing the meshing and the separation of the gear sleeve and the gear shifting gear by shifting the fork; therefore, there is a need for a stored energy synchronizer fork.
Disclosure of Invention
Aiming at the technical defects, the invention provides the shifting fork, in the shifting process, the shifting fork shaft axially stores energy for the shifting fork in advance, the carry stroke amount is reduced, and the shifting driving power is reduced, so that the driving time of the servo mechanism is prolonged, the shifting time of the shifting mechanism cannot be delayed, and the two-gear synchronizer and the multi-gear synchronizer adopt the same part structure, so that the production and maintenance cost can be reduced.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides an energy storage formula synchronizer shift fork, this shift fork setting is on the declutch shift shaft of synchronizer, the shift fork includes shift fork main part and spring assembly, spring assembly sets up in the shift fork main part, be equipped with first gear post on the declutch shift shaft, one of spring assembly is served and is equipped with second gear post.
Further, the shift fork main part is two fork column structures, be equipped with two shifting fork heads in the shift fork main part at least, two form the fork structure through the arcwall face transition between the shifting fork head, be equipped with two fork feet in the shift fork main part at least, two the fork foot passes through the arcwall face transition and forms the fork structure, by two fork structure's that shift fork head and fork foot formed opposite direction.
Furthermore, the shifting fork head is provided with a matching hole used for matching with the shifting fork shaft, a fixed sleeve is arranged on the pulling plug outside one matching hole, the spring assembly and the shifting fork shaft are matched in the fixed sleeve, and at least one shifting fork head on the shifting fork shaft is provided with the fixed sleeve.
Further, spring unit includes spring and fastener, be equipped with first cooperation groove on the declutch shift shaft, the both ends in first cooperation groove all are provided with the fastener, the spring cooperation is on the declutch shift shaft between two fasteners, the great part department of radius is equipped with second cooperation groove on the fixed sleeve, the both ends of fastener extend to outside the second cooperation groove, the spring cooperation is in the great part of radius on the fixed sleeve.
Further, the second gear column is arranged on the fixed sleeve.
Furthermore, the two ends of the clamping piece are provided with convex blocks, and the end part of the spring is clamped between the two convex blocks.
Furthermore, a reinforcing part is arranged on one side wall surface of the shifting fork foot, and the reinforcing part protrudes out of the shifting fork foot.
The invention has the beneficial effects that:
in the gear shifting process, the shifting fork shaft stores energy for the shifting fork in advance in the axial direction, the carry stroke amount is reduced, and the gear shifting driving power is reduced, so that the driving time of the servo mechanism is prolonged, the gear shifting time of the gear shifting mechanism cannot be delayed, the two-gear synchronizer and the four-gear synchronizer are identical in part structure, and the production and maintenance cost can be reduced.
Drawings
Fig. 1 is a schematic structural view of a shift fork mounted on a two-gear synchronizer.
Fig. 2 is a schematic structural view of a shift fork mounted on the four-gear synchronizer.
Fig. 3 is a schematic structural view of a spring assembly.
Fig. 4 is a working principle diagram of a shifting fork on the two-gear synchronizer.
Fig. 5 is a working principle diagram of a shifting fork on the four-gear synchronizer.
Fig. 6 is a schematic diagram of a synchronizer structure.
In the figure, a shifting fork shaft 1, a shifting fork 2, a spring assembly 3, a first gear column 4, a second gear column 5, a shifting fork head 6, a shifting fork foot 7, a matching hole 8, a fixed sleeve 9, a spring 10, a clamping piece 11, a first matching groove 12, a second matching groove 13, a convex block 14, a reinforcing part 15, a synchronizer 16 and a shifting fork main body 17.
Detailed Description
As shown in the combination of the figures 1, 3 and 6, the energy storage type synchronizer shifting fork is characterized in that the shifting fork 2 is arranged on a shifting fork shaft 1 of a synchronizer 16, the shifting fork 2 comprises a shifting fork main body 17 and a spring assembly 3, the spring assembly 3 is arranged on the shifting fork main body 17, a first gear column 4 is arranged on the shifting fork shaft 1, and one end of the spring assembly 3 is provided with a second gear column 5.
Further, shift fork main part 17 is two fork column structures, be equipped with two fork heads 6 on the shift fork main part 17 at least, two shift fork head forms the fork structure through the arcwall face transition between 6, be equipped with two fork feet 7 on the shift fork main part 17 at least, two shift fork foot 7 forms the fork structure through the arcwall face transition, by shift fork head 6 and shift fork foot 7 form two fork structure's opposite direction.
The shifting fork head 6 is provided with a matching hole 8 used for matching with the shifting fork shaft 1, a fixing sleeve 9 is arranged on the plug pull outside one matching hole 8, the spring assembly 3 and the shifting fork shaft 1 are matched in the fixing sleeve 9, and at least one shifting fork head 6 on the shifting fork shaft 1 is provided with the fixing sleeve 9.
The second gear post 5 is arranged on a fixed sleeve 9.
The two ends of the clamping piece 11 are provided with convex blocks 14, and the end part of the spring 10 is clamped between the two convex blocks 14.
And a reinforcing part 15 is arranged on one side wall surface of the shifting fork foot 7, and the reinforcing part 15 protrudes out of the shifting fork foot 7.
As shown in fig. 1 and 4, when the two-gear synchronizer is in gear, the second gear column 5 drives the shift fork shaft 1 to move, so that the spring 10 is compressed and stored; in the process that the shifting fork shaft 1 continues to move, the spring 10 restores the original state and drives the shifting fork shaft 1 to move, and in the process that the shifting fork shaft 1 moves, the clamping piece 11 is driven by the spring 10 to move towards the moving direction of the shifting fork shaft 1, so that the shifting fork 2 is driven to move towards the moving direction of the shifting fork shaft 1 until the spring 10 completely restores the original state, and therefore gear switching is completed.
As shown in fig. 2 and 5, the four-gear synchronizer is provided with two sets of shifting forks 2 and shifting fork shafts of the two-gear synchronizer, wherein the shifting fork shafts are arranged in the same direction and at different angles, the shifting forks 2 are arranged in the same angle and at different directions, and the spring 10 and the clamping piece 11 are arranged in the same way; when the four-gear synchronizer is in gear, the force during gear engaging acts on the second gear column 5 of one shifting fork shaft 1, so that one shifting fork shaft 1 is driven to move, and the springs 10 on the same side of the shifting fork shaft are compressed to store energy; in the process that one shifting fork shaft 1 continues to move, the spring 10 on the same side recovers the original state and drives the shifting fork shaft 1 to move, and in the process that the shifting fork shaft 1 moves, the clamping piece 11 is driven by the spring 10 to move towards the moving direction of the shifting fork shaft 1, so that the shifting fork 2 is driven to move towards the moving direction of the shifting fork shaft 1 until the spring 10 completely recovers the original state, and the gear switching is completed; the working principle of the shifting fork 2 and the shifting fork shaft on the four-gear synchronizer is consistent with the principle of the shifting fork 2 and the shifting fork shaft on the two-gear synchronizer.
The shifting fork shaft is used for axially accumulating energy for the shifting fork 2 in advance, the carry stroke amount is reduced, and the shifting driving power is reduced, so that the driving time of the servo mechanism is prolonged, the shifting time of the shifting mechanism cannot be delayed, the two-gear synchronizer is the same as the four-gear synchronizer in part structure, and the production and maintenance cost can be reduced.
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 (7)
1. The utility model provides an energy storage formula synchronizer shift fork, this shift fork setting is on the declutch shift shaft of synchronizer, its characterized in that, the shift fork includes shift fork main part and spring assembly, spring assembly sets up in the shift fork main part, be equipped with first gear post on the declutch shift shaft, one of spring assembly is served and is equipped with second gear post.
2. The energy storage type synchronizer shifting fork according to claim 1, wherein the shifting fork body is of a double fork structure, at least two shifting fork heads are arranged on the shifting fork body, a fork structure is formed between the two shifting fork heads through arc-shaped surface transition, at least two shifting fork feet are arranged on the shifting fork body, a fork structure is formed through arc-shaped surface transition between the two shifting fork feet, and the directions of the two fork structures formed by the shifting fork heads and the shifting fork feet are opposite.
3. The fork of claim 2, wherein the fork head has a fitting hole for fitting the fork shaft, and a fixing sleeve is disposed on the plug outside one of the fitting holes, and the spring assembly and the fork shaft are fitted in the fixing sleeve, and at least one of the fork heads of the fork shaft has a fixing sleeve.
4. The fork of claim 3, wherein the spring assembly comprises a spring and a clamping member, the fork shaft is provided with a first engaging groove, the clamping member is disposed at both ends of the first engaging groove, the spring is engaged with the fork shaft between the two clamping members, the fixing sleeve is provided with a second engaging groove at a portion with a larger radius, the clamping member extends beyond the second engaging groove at both ends, and the spring is engaged with the fixing sleeve at a portion with a larger radius.
5. A stored energy synchronizer fork according to claim 3 wherein said second gear post is disposed on a fixed sleeve.
6. The fork of claim 4, wherein the latch member has a protrusion at each end, and the end of the spring is engaged between the protrusions.
7. The fork of claim 2, wherein a reinforcement is provided on a side wall of the fork leg, and the reinforcement protrudes outward from the fork leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210115845.XA CN114135665A (en) | 2022-02-07 | 2022-02-07 | Energy storage formula synchronizer shift fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210115845.XA CN114135665A (en) | 2022-02-07 | 2022-02-07 | Energy storage formula synchronizer shift fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114135665A true CN114135665A (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210115845.XA Pending CN114135665A (en) | 2022-02-07 | 2022-02-07 | Energy storage formula synchronizer shift fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114135665A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000088095A (en) * | 1998-09-10 | 2000-03-28 | Tochigi Fuji Ind Co Ltd | Standby mechanism |
| US6374691B1 (en) * | 1997-08-25 | 2002-04-23 | Ab Volvo Pents | Device for assisted gear shifting of a transmission |
| US20070163372A1 (en) * | 2004-01-29 | 2007-07-19 | Magna Drivetrain Ag & Co Kg | Transmission comprising a displaceable shift fork and an actuator |
| DE102008036126A1 (en) * | 2008-08-01 | 2010-02-04 | Fsg Automotive Holding Ag | Shifting fork for manual gearbox in motor vehicle i.e. passenger car, has metallic fork core and fork casing that surrounds part of surface of fork guiding elements and attached to one of fork arms and fork guiding elements |
| FR2956178A3 (en) * | 2010-02-11 | 2011-08-12 | Renault Sas | Shift fork for changing speed ratio of automated gear box of motor vehicle, has shift fork axle coupled with shift fork body, and elastic coupling unit coupled between shift fork axle and shift fork body |
| WO2020069900A1 (en) * | 2018-10-05 | 2020-04-09 | Renault S.A.S | Improved assisted device for driving a gearbox gearshift fork |
| CN113090753A (en) * | 2021-03-31 | 2021-07-09 | 华为技术有限公司 | Shifting mechanism, two-gear shifting system and vehicle |
| US20210239209A1 (en) * | 2020-02-05 | 2021-08-05 | Hyundai Motor Company | Actuator for transmission |
-
2022
- 2022-02-07 CN CN202210115845.XA patent/CN114135665A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6374691B1 (en) * | 1997-08-25 | 2002-04-23 | Ab Volvo Pents | Device for assisted gear shifting of a transmission |
| JP2000088095A (en) * | 1998-09-10 | 2000-03-28 | Tochigi Fuji Ind Co Ltd | Standby mechanism |
| US20070163372A1 (en) * | 2004-01-29 | 2007-07-19 | Magna Drivetrain Ag & Co Kg | Transmission comprising a displaceable shift fork and an actuator |
| DE102008036126A1 (en) * | 2008-08-01 | 2010-02-04 | Fsg Automotive Holding Ag | Shifting fork for manual gearbox in motor vehicle i.e. passenger car, has metallic fork core and fork casing that surrounds part of surface of fork guiding elements and attached to one of fork arms and fork guiding elements |
| FR2956178A3 (en) * | 2010-02-11 | 2011-08-12 | Renault Sas | Shift fork for changing speed ratio of automated gear box of motor vehicle, has shift fork axle coupled with shift fork body, and elastic coupling unit coupled between shift fork axle and shift fork body |
| WO2020069900A1 (en) * | 2018-10-05 | 2020-04-09 | Renault S.A.S | Improved assisted device for driving a gearbox gearshift fork |
| US20210239209A1 (en) * | 2020-02-05 | 2021-08-05 | Hyundai Motor Company | Actuator for transmission |
| CN113090753A (en) * | 2021-03-31 | 2021-07-09 | 华为技术有限公司 | Shifting mechanism, two-gear shifting system and vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 徐立友等: "拖拉机DCT换档执行机构设计", 《中国农机化学报》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220304 |