CN109990089A - A kind of selector fork and preparation method thereof - Google Patents
A kind of selector fork and preparation method thereof Download PDFInfo
- Publication number
- CN109990089A CN109990089A CN201910313103.6A CN201910313103A CN109990089A CN 109990089 A CN109990089 A CN 109990089A CN 201910313103 A CN201910313103 A CN 201910313103A CN 109990089 A CN109990089 A CN 109990089A
- Authority
- CN
- China
- Prior art keywords
- main body
- shift fork
- shifting block
- fork main
- nylon layer
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
-
- 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
- F16H2063/327—Gear shift yokes, e.g. shift forks essentially made of sheet metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The present invention relates to a kind of selector forks and preparation method thereof, selector fork includes shift fork main body, two prong lower end insides of shift fork main body are respectively equipped with shifting block, shifting block and shift fork main body using integrated forging molding, and the front and back sides and medial surface of shifting block are coated with nylon layer.It has the advantages that of simple structure and low cost, wearability is good, high reliablity, long service life.The preparation method of shift fork main body is the following steps are included: using forging technology integral production shift fork main body and shifting block；Two prongs and two shifting blocks of shift fork main body are quenched；Nylon layer is respectively applied in front and back sides and medial surface using coated technique in two shifting blocks；Finishing processing is carried out to the nylon layer on two shifting blocks, it is made to match matched sliding sleeve size.Preparation method has the advantages that simple process, realization are easy.
Description
Technical field
The present invention relates to a kind of selector forks, and in particular to a kind of selector fork of monoblock type and the system of the selector fork
Preparation Method.
Background technique
Car gear shifting mechanism is to drive sleeve movement by shift fork main body and shifting block, and engage sliding sleeve with driving gear and come
It realizes and hangs shelves.Sliding sleeve is directly contacted with shifting block in this course, to protect sliding sleeve not to be worn, it is desirable that the hardness of shifting block is answered
It is smaller than the hardness of sliding sleeve, meanwhile, also require shifting block that should have good wearability to guarantee the reliability of gear shift.In addition, because dialling
The motor pattern for pitching main body and shifting block is straight reciprocating motion, it is desirable that shift fork main body should have enough rigidity, to avoid generation
Axial deformation influences to hang shelves stroke.There are mainly two types of structure type, one kind is monoblock type knot for existing shift fork main body and shifting block
Structure needs integral replacing after shifting block abrasion, economy and maintainability are poor that is, by shift fork main body and shifting block integral production；
Another kind is split type structure, i.e., makes shift fork main body and shifting block respectively and be combined together the two by connection structure,
Shifting block is only needed to change after shifting block abrasion, compared to monolithic construction, split type structure improves economy and maintainability,
But it also correspondingly increases a part and fault mode, increases failure probability.
Summary of the invention
The object of the present invention is to provide a kind of selector fork and preparation method thereof, selector fork simple, costs with structure
Cheap, the advantages of wearability is good, high reliablity, long service life；Preparation method has the advantages that simple process, realization are easy.
To solve the above-mentioned problems in the prior art, a kind of selector fork provided by the invention, including shift fork main body,
Two prong lower end insides of the shift fork main body are respectively equipped with shifting block, and the shifting block is used with shift fork main body and is integrally forged into
Type, the front and back sides and medial surface of shifting block are coated with nylon layer.
Further, a kind of selector fork of the present invention, wherein the nylon layer on the shifting block front and back sides and medial surface
It is linked together.
Further, a kind of selector fork of the present invention, wherein the shift fork main body and shifting block are made of 40Cr steel, institute
State nylon layer with a thickness of 0.2~0.5mm.
Further, a kind of selector fork of the present invention, wherein the upper end of the shift fork main body is equipped with connecting hole.
Further, a kind of selector fork of the present invention, wherein the top side of the shift fork main body is equipped with limited block.
Further, a kind of selector fork of the present invention, wherein arched door knot is formed between two prongs of the shift fork main body
Structure, the upper half semicircular in shape of arched door.
Further, a kind of selector fork of the present invention, wherein two prong inner thickness of the shift fork main body are less than it
Thickness as outside.
Further, a kind of selector fork of the present invention, wherein the upper half thickness of the shift fork main body is greater than two fork
The thickness of foot.
A kind of preparation method of above-mentioned selector fork provided by the invention, comprising the following steps:
One, using forging technology integral production shift fork main body and shifting block；
Two, two prongs of shift fork main body and two shifting blocks are quenched；
Three, the front and back sides and medial surface using coated technique in two shifting blocks apply nylon layer；
Four, finishing processing is carried out to the nylon layer on two shifting blocks, it is made to match matched sliding sleeve size.
Further, a kind of preparation method of selector fork of the present invention, in step 1, the shift fork main body and shifting block are adopted
With 40Cr steel one forging molding；In step 2, the quenching treatment is that high-frequency quenching is handled；It is described right in step 4
Nylon layer on two shifting blocks carries out finishing processing, refers to that treated that nylon layer surface roughness is less than or equal to for finishing
Ra3.2。
A kind of selector fork of the present invention and preparation method thereof compared with prior art, has the advantage that the present invention passes through
Shift fork main body is set, shifting block is respectively set in two prong lower end insides of shift fork main body, allows shifting block and shift fork main body using one
Body forging molding, and nylon layer is applied in the front and back sides of shifting block and medial surface.Thus just constitute a kind of structure it is simple,
It is low in cost, wearability is good, high reliablity, selector fork with long service life.The present invention is by allowing shifting block and shift fork main body one
Body forging molding, simplifies structure, reduces fault mode, improves reliability and safety.By applying Buddhist nun on shifting block
On the one hand the wearability of shifting block can be improved in imperial layer, and energy effective protection sliding sleeve is not worn；On the other hand make shift fork main body and dial
Block is not limited by sliding sleeve hardness, non-deformability can be improved by improving hardness and rigidity, to avoid fatigue rupture and mistake
It carries and destroys, guarantee the reliability for hanging shelves, especially suitable for middle-size and small-size shift mechanism.A kind of system of selector fork provided by the invention
Preparation Method has the advantages that simple process, realization are easy.
Shown specific embodiment is made a kind of selector fork of the present invention and preparation method thereof further with reference to the accompanying drawing
It is described in detail.
Detailed description of the invention
Fig. 1 is a kind of main view of selector fork of the present invention；
Fig. 2 is a kind of perspective view of selector fork of this hair gallbladder.
Specific embodiment
Firstly the need of explanation, the nouns of locality such as heretofore described up, down, left, right, before and after only with reference to the accompanying drawings into
Capable description, in order to understand, not to technical solution of the present invention and be claimed range progress limitation.
A kind of specific embodiment of selector fork of the present invention as depicted in figs. 1 and 2, including shift fork main body 1, in shift fork master
Shifting block 2 is respectively set in two prong lower end insides of body 1, allows shifting block 2 and shift fork main body 1 using integrated forging molding, and dialling
The front and back sides and medial surface of block 2 apply nylon layer.It is arranged through the above structure and just constitutes that a kind of structure is simple, cost
It is cheap, wearability is good, high reliablity, selector fork with long service life.The present invention is by making shifting block 2 and shift fork main body 1 integrated
Forging molding simplifies structure, reduces fault mode, improves reliability and safety.By applying nylon on shifting block
On the one hand the wearability of shifting block 2 can be improved in layer, and energy effective protection sliding sleeve is not worn；On the other hand make shift fork main body 1 and dial
Block 2 is not limited by sliding sleeve hardness, non-deformability can be improved by improving hardness and rigidity, to avoid fatigue rupture and mistake
It carries and destroys, guarantee the reliability for hanging shelves, especially suitable for middle-size and small-size shift mechanism.It should be noted that 2 front and back sides of shifting block with
And the nylon layer on medial surface is linked together, with the globality of enhancing structure；In practical applications, the present invention, which usually allows, dials
It pitches main body 1 and shifting block 2 to be made of 40Cr steel, and the thickness of nylon layer is processed as 0.2~0.5mm, to guarantee its performance.
As specific embodiment, the present invention is provided with connecting hole 11 in the upper end of shift fork main body 1, in order to the company of installation
Bar, and limited block 12 is provided in the top side of shift fork main body 1.Meanwhile the present invention allow shift fork main body 1 two prongs between
Arch structure is formed, and makes the upper half of arched door using semicircle, to be matched with transmission shaft.And make two of shift fork main body 1
Prong inner thickness is less than its thickness as outside, so that the upper half thickness of shift fork main body 1 is greater than the thickness of two prong, is guaranteeing
On the basis of function and structure intensity, to reduce volume and weight.
Based on same design, the present invention also provides a kind of preparation methods of selector fork, specifically includes the following steps:
One, using forging technology integral production shift fork main body 1 and shifting block 2.
Two, two prongs of shift fork main body 1 and two shifting blocks 2 are quenched.
Three, the front and back sides and medial surface using coated technique in two shifting blocks 2 apply nylon layer.
Four, finishing processing is carried out to the nylon layer on two shifting blocks 2, it is made to match matched sliding sleeve size.
In step 1, the shift fork main body 1 and shifting block 2 use 40Cr steel one forging molding；It is described in step 2
Quenching treatment is that high-frequency quenching is handled；In step 4, the nylon layer on two shifting blocks 2 carries out finishing processing, is
Refer to that finishing treated nylon layer surface roughness is less than or equal to Ra3.2.
The present invention improves the globality and reliability of shift fork by forging integral production shift fork main body and shifting block；Pass through
Quenching improves the hardness and rigidity of shift fork main body and shifting block, enhances fatigue resistance and tough；By applying Buddhist nun
Imperial layer improves the wearability of shifting block, and sliding sleeve can be protected not to be worn.
Above embodiments are only the descriptions carried out to the preferred embodiment of the present invention, and model not is claimed to the present invention
It encloses and is defined, without departing from the design concept of the invention, the technical solution of those skilled in the art according to the present invention
The various modifications made, should fall within the scope of protection determined by the claims of the present invention.
Claims (10)
1. a kind of selector fork, which is characterized in that including shift fork main body (1), in two prong lower ends of the shift fork main body (1)
Side is respectively equipped with shifting block (2), and the shifting block (2) and shift fork main body (1) are using integrated forging molding, the front and back sides of shifting block (2)
And medial surface is coated with nylon layer.
2. a kind of selector fork according to claim 1, which is characterized in that shifting block (2) front and back sides and inside
Nylon layer on face is linked together.
3. a kind of selector fork according to claim 2, which is characterized in that the shift fork main body (1) and shifting block (2) use
40Cr steel production, the nylon layer with a thickness of 0.2~0.5mm.
4. a kind of selector fork according to claim 3, which is characterized in that the upper end of the shift fork main body (1), which is equipped with, to be connected
Connect hole (11).
5. a kind of selector fork according to claim 4, which is characterized in that the top side of the shift fork main body (1) is set
There are limited block (12).
6. a kind of selector fork according to claim 5, which is characterized in that two prongs of the shift fork main body (1) it
Between form arch structure, the upper half semicircular in shape of arched door.
7. a kind of selector fork according to claim 5, which is characterized in that in two prongs of the shift fork main body (1)
Side thickness is less than its thickness as outside.
8. a kind of selector fork according to claim 5, which is characterized in that the upper half thickness of the shift fork main body (1)
Greater than the thickness of two prong.
9. a kind of preparation method of selector fork described in claim 1, which comprises the following steps:
One, using forging technology integral production shift fork main body (1) and shifting block (2)；
Two, two prongs of shift fork main body (1) and two shifting blocks (2) are quenched；
Three, the front and back sides and medial surface using coated technique in two shifting blocks (2) apply nylon layer；
Four, finishing processing is carried out to the nylon layer on two shifting blocks (2), it is made to match matched sliding sleeve size.
10. a kind of preparation method of selector fork according to claim 9, which is characterized in that in step 1, described group
It pitches main body (1) and shifting block (2) uses 40Cr steel one forging molding；In step 2, the quenching treatment is at high-frequency quenching
Reason；In step 4, the nylon layer on two shifting blocks (2) carries out finishing processing, refers to finishing treated Buddhist nun
Imperial layer surface roughness is less than or equal to Ra3.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313103.6A CN109990089A (en) | 2019-04-18 | 2019-04-18 | A kind of selector fork and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313103.6A CN109990089A (en) | 2019-04-18 | 2019-04-18 | A kind of selector fork and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109990089A true CN109990089A (en) | 2019-07-09 |
Family
ID=67134947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910313103.6A Pending CN109990089A (en) | 2019-04-18 | 2019-04-18 | A kind of selector fork and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109990089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757365A (en) * | 2021-08-17 | 2021-12-07 | 昌利锻造有限公司 | Gearbox shifting fork and forming process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0341262A (en) * | 1989-07-10 | 1991-02-21 | Toyota Motor Corp | Shift folk |
| CN1244636A (en) * | 1998-08-10 | 2000-02-16 | 日野自动车工业株式会社 | Pulling fork and its producing method |
| CN202992151U (en) * | 2013-01-05 | 2013-06-12 | 江西国兴集团兴国齿轮箱拨叉有限公司 | Novel shifting fork |
| CN204512402U (en) * | 2015-03-30 | 2015-07-29 | 屏山县天成精密铸造有限责任公司 | A kind of selector fork |
| CN107740859A (en) * | 2017-10-18 | 2018-02-27 | 浙江瑞阳锻造有限公司 | A kind of transmission main shaft shifting fork structure |
| CN207316061U (en) * | 2017-10-18 | 2018-05-04 | 浙江瑞阳锻造有限公司 | The reinforcing shift fork of transmission shaft |
| CN208203987U (en) * | 2017-10-18 | 2018-12-07 | 浙江瑞阳锻造有限公司 | The left shifting fork structure of transmission countershaft |
-
2019
- 2019-04-18 CN CN201910313103.6A patent/CN109990089A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0341262A (en) * | 1989-07-10 | 1991-02-21 | Toyota Motor Corp | Shift folk |
| CN1244636A (en) * | 1998-08-10 | 2000-02-16 | 日野自动车工业株式会社 | Pulling fork and its producing method |
| CN202992151U (en) * | 2013-01-05 | 2013-06-12 | 江西国兴集团兴国齿轮箱拨叉有限公司 | Novel shifting fork |
| CN204512402U (en) * | 2015-03-30 | 2015-07-29 | 屏山县天成精密铸造有限责任公司 | A kind of selector fork |
| CN107740859A (en) * | 2017-10-18 | 2018-02-27 | 浙江瑞阳锻造有限公司 | A kind of transmission main shaft shifting fork structure |
| CN207316061U (en) * | 2017-10-18 | 2018-05-04 | 浙江瑞阳锻造有限公司 | The reinforcing shift fork of transmission shaft |
| CN208203987U (en) * | 2017-10-18 | 2018-12-07 | 浙江瑞阳锻造有限公司 | The left shifting fork structure of transmission countershaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757365A (en) * | 2021-08-17 | 2021-12-07 | 昌利锻造有限公司 | Gearbox shifting fork and forming process thereof |
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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: 20190709 |
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| RJ01 | Rejection of invention patent application after publication |