CN206361140U - A kind of new selector fork of speed changer - Google Patents
A kind of new selector fork of speed changer Download PDFInfo
- Publication number
- CN206361140U CN206361140U CN201621362343.3U CN201621362343U CN206361140U CN 206361140 U CN206361140 U CN 206361140U CN 201621362343 U CN201621362343 U CN 201621362343U CN 206361140 U CN206361140 U CN 206361140U
- Authority
- CN
- China
- Prior art keywords
- prong
- shift fork
- speed changer
- nylon6 chips
- hole
- 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.)
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- Gear-Shifting Mechanisms (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Abstract
The utility model discloses a kind of new selector fork of speed changer, have：Shift fork body；The through hole of insertion prong is equipped with two prongs of shift fork body；Nylon6 chips, are cast on the through hole of prong, and nylon6 chips cover the working face of two prongs；The part of the working face of nylon6 chips covering prong includes arc section and straightway, arc section is close to the end of prong, economy and durability, shock resistance are good, while can reduce gearshift noise (including vehicle travel process speed changer produces noise), improve gearshift performance.
Description
Technical field
The utility model belongs to transmission shift system technical field, more particularly to a kind of new gearshift of speed changer is dialled
Fork.
Background technology
Selector fork is one of important spare part in the motor vehicle gearboxes such as current automobile.In shift of transmission process
In, shifting fork mechanism belongs to the cantilever beam structure using fork shaft as fulcrum, and subject makes in discontinuity fatigue load, domestic market
Shift fork is mainly realized by forging, casting or Sheet Metal Forming Technology, and for steel part, shift fork working face is needed by quenching
Ignition technique, i.e. carbo-nitriding quenching, carburizing and quenching or high-frequency quenching provide the hardness of shift fork working face, thus ensure shift fork with
Wearability during tooth set contact, at present known to us, the heat treatment of any property can cause parts work facial disfigurement,
Even there is unpredictable crackle, so that the performance and reliability requirement of product are influenceed, furthermore, most of shift fork is used
Metal material, the parts matched during work with it-tooth set is also metal, while can exist to a certain degree during tooth set work
Beat, can thus produce larger friction noise and knocking noise (RATTLE), in addition when shift fork is designed, two shift forks
Prong can not possibly be designed to it is identical, heat treatment when, two prongs deformation inequality can produce it is a certain degree of stagger, so
Shift fork stress point can be caused to change to a certain extent, tooth set is occurred slight unbalance loading, so that performance of shifting gears is influenceed,
Utility model content
Technical problem to be solved in the utility model is to provide a kind of economy and durability, shock resistance well, while energy
Reduction gearshift noise (including vehicle travel process speed changer produces noise), the new gearshift for the speed changer for improving gearshift performance are dialled
Fork.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is used is：A kind of the new of speed changer is changed
Shift fork is kept off, is had：
Shift fork body；
The through hole of insertion prong is equipped with two prongs of the shift fork body；
On nylon6 chips, the through hole for being cast in the prong, the nylon6 chips cover the working face of described two prongs；
The part of the working face of the nylon6 chips covering prong includes arc section and straightway, and the arc section is close to described
The end of prong.
A diameter of 2mm of the through hole of the prong.
The nylon6 chips injection is through two through holes and is fixed in prong.
A technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect, economy and durability, impact resistance
Can be good, while gearshift noise (including vehicle travel process speed changer produces noise) can be reduced, improve gearshift performance.
Brief description of the drawings
Fig. 1 is the structural representation of the new selector fork of speed changer provided in the utility model embodiment；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the sectional view of Fig. 1 shift fork prongs；
Mark in above-mentioned figure is：1st, shift fork body, 2, nylon6 chips, 3, arc section, 4, straightway, 5, through hole.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
Referring to Fig. 1-3, a kind of new selector fork of speed changer has：
Shift fork body；
The through hole of insertion prong is equipped with two prongs of shift fork body；
Nylon6 chips, are cast on the through hole of prong, and nylon6 chips cover the working face of two prongs；
The part of the working face of nylon6 chips covering prong includes arc section and straightway, and arc section is close to the end of prong.
A diameter of 2mm of the through hole of prong.Nylon6 chips covering prong covers two sides of prong simultaneously.
Nylon6 chips injection is through two through holes and is fixed in prong.
Nylon6 chips on shift fork, including shift fork matrix and the prong working face of shift fork two by material of steel.Skill of the present invention
The architectural feature of art scheme is the through hole that two a diameter of 2mm are drilled with shift fork matrix, and enhancing nylon6 chips are by injection molding manner
It is fixed on through holes on shift fork matrix.
Shift fork matrix material is ZG310-570, through melting after die cast obtains blank, modifier treatment is carried out, by machining
The size of laminating preceding drawing requirement is worked into, and prong rack position is carried out after high-frequency quenching, injection step is fed directly to dialling
Pitch two prong working faces and carry out laminating processing, then slightly do shaping.Thus process can be seen that compared to pure ironcasting
Process, laminating shift fork part eliminates the high-frequency quenching process of the prong working face of shift fork two, thus avoid because of high-frequency therapeutic treatment
The defects such as prong work facial disfigurement, crackle and the internal stress brought.The shift fork matrix of modifier treatment can obtain good machinery
Performance, it is ensured that the toughness of shift fork.Nylon6 chips are straight through aperture by shift fork matrix two on the prong working face of shift fork two
Connect and be cast in shift fork matrix so that the prong working face of shift fork two is covered with enhancing nylon, it is to avoid shift fork and tooth inner room during work
Metal is contacted, and is improved operating noise, is come off while avoiding nylon6 chips during work.Shift fork class product belongs to shaped piece, it is impossible to
Fully rely on machining to ensure, be typically designed with one of trimming finally, such that the prong of shift fork two produces difference
The deformation of degree, causes two prong working faces to stagger so that shift fork stress point is offset during gearshift, in general can move to working face
Position close to fork shaft hole, so causes tooth set by unbalance loading, and performance of shifting gears, therefore the present invention are influenced whether to a certain extent
In, the nylon6 chips of two shift fork prong working faces of design for circular arc with straightway is combined forms, it is ensured that working face high point is in tooth set
Immediate vicinity changes, that is, shift fork acts on the Li Guochitao centers that tooth is put during gearshift, it is to avoid tooth covers beat, is conducive to changing
Kind gearshift performance.
Mainly include shift fork matrix and pitched to avoid during work shift fork and tooth set from contacting, shift fork being cast in by injection molding manner
Enhancing nylon6 chips on the working face of pin two.The enhancing nylon6 chips belong to the PA66 class materials of glass fibrillation, are passed through by injection molding manner
Being through at the aperture of shift fork matrix two and being fixed on shift fork matrix prevents from coming off, so as to separate the shift fork and tooth set using steel as material
Between contact, improve transmission duty when noise.It is another to cause to change to avoid shift fork prong caused by shift fork trimming from deforming
There is unbalance loading and has influence on gearshift performance in tooth set during gear, the structure that nylon6 chips are matched using arc section and straightway, to reach
Improve the purpose of gearshift performance.
After above-mentioned structure, economy and durability, shock resistance are good, while can reduce noise of shifting gears (including vehicle
Traveling process speed changer produce noise), improve gearshift performance.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model implement not by
The limitation of aforesaid way, as long as employing changing for the various unsubstantialities that method design of the present utility model and technical scheme are carried out
Enter, or it is not improved by it is of the present utility model design and technical scheme directly apply to other occasions, in the utility model
Protection domain within.
Claims (4)
1. the new selector fork of a kind of speed changer, it is characterised in that have：
Shift fork body；
The through hole of insertion prong is equipped with two prongs of the shift fork body；
On nylon6 chips, the through hole for being cast in the prong, the nylon6 chips cover the working face of described two prongs；
The part of the working face of the nylon6 chips covering prong includes arc section and straightway, and the arc section is close to the prong
End.
2. the new selector fork of speed changer as claimed in claim 1, it is characterised in that the through hole of the prong it is a diameter of
2mm。
3. the new selector fork of speed changer as claimed in claim 2, it is characterised in that the nylon6 chips injection runs through two
Through hole is simultaneously fixed in prong.
4. the new selector fork of speed changer as claimed in claim 3, it is characterised in that the nylon6 chips covering prong is simultaneously
Cover two sides of prong.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362343.3U CN206361140U (en) | 2016-12-13 | 2016-12-13 | A kind of new selector fork of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362343.3U CN206361140U (en) | 2016-12-13 | 2016-12-13 | A kind of new selector fork of speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206361140U true CN206361140U (en) | 2017-07-28 |
Family
ID=59374318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621362343.3U Active CN206361140U (en) | 2016-12-13 | 2016-12-13 | A kind of new selector fork of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206361140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854737A (en) * | 2019-02-14 | 2019-06-07 | 中国第一汽车股份有限公司 | A kind of shifting fork structure of the prongs rigidity such as |
-
2016
- 2016-12-13 CN CN201621362343.3U patent/CN206361140U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854737A (en) * | 2019-02-14 | 2019-06-07 | 中国第一汽车股份有限公司 | A kind of shifting fork structure of the prongs rigidity such as |
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| GR01 | Patent grant |