CN110118255A - A kind of vehicle and shift fork - Google Patents
A kind of vehicle and shift fork Download PDFInfo
- Publication number
- CN110118255A CN110118255A CN201910458258.9A CN201910458258A CN110118255A CN 110118255 A CN110118255 A CN 110118255A CN 201910458258 A CN201910458258 A CN 201910458258A CN 110118255 A CN110118255 A CN 110118255A
- Authority
- CN
- China
- Prior art keywords
- shift fork
- pilot sleeve
- ontology
- sleeve
- transmission gear
- 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.)
- Withdrawn
Links
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
Abstract
The present invention discloses a kind of fork, and the pilot sleeve of shaft end ring is installed with including first end；The shift fork ontology that is slideably placed on pilot sleeve and can offset with the second end of pilot sleeve；It is installed on pilot sleeve and both ends offsets respectively with shaft end ring and shift fork ontology, for realizing the return springs of shift fork ontology reset.When transmission gear and driving wheel relatively rotate, the second end of shift fork ontology and pilot sleeve offsets so that pilot sleeve pushes transmission gear to be axially moveable, and realization is shifted gears；When the revolving speed of transmission gear and driving wheel is zero, fork ontology is slided along pilot sleeve to compress return springs；Compressed return springs push transmission gear to be axially moveable during restoring deformation by elastic force when transmission gear is with driving wheel relative rotation, realize and shift gears；Therefore, either normal condition or abnormal conditions, shift fork can be realized smooth shift.Invention additionally discloses a kind of vehicles comprising above-mentioned shift fork.
Description
Technical field
The present invention relates to vehicle component, in particular to a kind of shift fork.The invention further relates to a kind of vehicles comprising shift fork.
Background technique
It is usually higher in view of the revolving speed of vehicle transmitter, it starts to walk, climb, run at high speed etc. to drive need to meet vehicle
It asks, speed changer just comes into being.
Existing speed changer generally includes gear lever, shift fork, transmission gear, power output shaft and jackshaft, transmission gear
It is installed on power output shaft, power output shaft is equipped with multiple driven wheels, and jackshaft is equipped with multiple driving wheels.Adjust speed change
Bar, gear lever drive shift fork along the axial movement of power output shaft, and shift fork pushes transmission gear to be axially moveable, until gear teeth
The pawl of wheel is matched with the adjustment hole of corresponding driven wheel, and the driven wheel that shift fork is in contact is matched with corresponding driving wheel,
Change the driving wheel and driven wheel being meshed originally between power output shaft and jackshaft, to change the torque of power output shaft
And revolving speed, realize speed change.
Under normal conditions, it needs that there are relative rotation speeds between transmission gear and driving wheel, just can guarantee the spine after stirring shift fork
Pawl can be matched with adjustment hole, and then can guarantee to realize speed change.However, actually drive vehicle when, transmission gear with
Driving wheel may cause the revolving speed of the two to be zero because of factors such as clutch separation or vehicle starts, when pawl and adjustment hole can not
When alignment occlusion, gear lever can not stir shift fork axial movement, cannot achieve shift in abnormal work so as to cause vehicle.
Therefore, how to make vehicle under any circumstance to can be realized smoothly shift to be that those skilled in the art are urgently to be resolved
The technical issues of.
Summary of the invention
In view of this, can smoothly realize shift under any circumstance the purpose of the present invention is to provide a kind of shift fork.This
The another object of invention is to provide a kind of vehicle comprising shift fork, and functional reliability is higher.
Its concrete scheme is as follows:
The present invention provides a kind of fork, comprising:
First end is installed with the pilot sleeve of shaft end ring；
The shift fork ontology that is slideably placed on pilot sleeve and can offset with the second end of pilot sleeve；
It is installed on pilot sleeve and both ends offsets respectively with shaft end ring and shift fork ontology, for realizing the reset of shift fork ontology
Return springs.
Preferably, the second end of pilot sleeve has collar stop, and positioning sleeve is equipped between collar stop and shift fork ontology
Cylinder, abutment sleeve are placed on pilot sleeve, are equipped between abutment sleeve and shift fork ontology for limiting shift fork ontology relative to guiding
The positioning component of sleeve radial rotating.
Preferably, positioning component includes:
Set on the location hole of shift fork ontology；
It is fixedly arranged on abutment sleeve and the positioning column relative to location hole sliding.
Preferably, shift fork ontology includes sliding guide sleeve, and sliding guide sleeve is equipped with the abutting step surface that return springs offset.
Preferably, further include it is a series of there is different length and be alternatively installed on shaft end ring and return springs it
Between, the adjusting set for adjusting return springs compression degree.
The present invention also provides a kind of vehicle, including transmission gear and any of the above-described shift fork, shift fork is for stirring gear teeth
Wheel is axially moveable.
With respect to the background art, the present invention provides a kind of shift fork, including pilot sleeve, shift fork ontology and return springs.
When normal condition, namely when transmission gear and driving wheel relatively rotate, stir shift fork ontology, shift fork ontology with lead
It offsets to the second end of sleeve, makes pilot sleeve that transmission gear be pushed to be axially moveable, realize shift；
When abnormal conditions, namely when the revolving speed of transmission gear and driving wheel is zero, shift fork ontology, fork ontology are stirred
It is slided along pilot sleeve, shift fork ontology compresses return springs；Clutch is trampled, transmission gear and driving wheel are relatively rotated, pressed
The return springs of contracting push transmission gear to be axially moveable during restoring deformation by elastic force, change to realize
Gear；
It can be seen that either normal condition or abnormal conditions, shift fork provided by the present invention can be realized smoothly
Shift.
The present invention also provides a kind of vehicle comprising above-mentioned shift fork, functional reliability is higher.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structure chart of fork provided by an embodiment of the present invention；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is the A-A of Fig. 2 to sectional view；
Fig. 4 is the explosive view of Fig. 3；
Fig. 5 is the first working state figure of fork provided by an embodiment of the present invention；
Fig. 6 is second of working state figure of fork provided by an embodiment of the present invention.
Appended drawing reference is as follows:
Transmission gear 01；
Pilot sleeve 1, shaft end ring 2, shift fork ontology 3, return springs 4, abutment sleeve 5, positioning component 6 and adjusting set
7；
Location hole 61 and positioning column 62.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the present invention program, with reference to the accompanying drawing and it is embodied
The present invention is described in further detail for example.
Fig. 1 to Fig. 6 is please referred to, Fig. 1 is the structure chart of fork provided by an embodiment of the present invention；Fig. 2 is the master of Fig. 1
View；Fig. 3 is the A-A of Fig. 2 to sectional view；Fig. 4 is the explosive view of Fig. 3；Fig. 5 is fork provided by an embodiment of the present invention
The first working state figure；Fig. 6 is second of working state figure of fork provided by an embodiment of the present invention.
The embodiment of the invention discloses a kind of shift forks, including pilot sleeve 1, shift fork ontology 3 and return springs 4.This hair
Bright key improvements point is original integral type shift fork being changed to split type shift fork.
Pilot sleeve 1 is in hollow cylindrical, and the first end of pilot sleeve 1 is installed with shaft end ring 2, correspondingly, guide sleeve
The first end of cylinder 1 is equipped with the annular groove for installing shaft end ring 2.Certainly, the structure of pilot sleeve 1 is without being limited thereto.
Shift fork ontology 3 is slideably placed on pilot sleeve 1, can offset with 1 second end of pilot sleeve.When stirring gear lever
When, gear lever drives fork ontology to slide axially with respect to pilot sleeve 1.Specifically, shift fork ontology 3 include sliding guide sleeve and
It is fixedly arranged on the radial shift fork of sliding guide sleeve periphery, sliding guide sleeve is coaxially disposed in pilot sleeve 1, and radial shift fork is led perpendicular to sliding
The central axis of set is arranged, and the free end of radial shift fork is equipped with ring arc allocating slot, and annular allocating slot is for stirring 01 axis of transmission gear
To movement.Certainly, the structure of shift fork ontology 3 is without being limited thereto.
Return springs 4 are installed on pilot sleeve 1, and specifically, return springs 4 are installed on shaft end ring 2 and shift fork sheet
Between body 3, and the both ends of return springs 4 offset with shaft end ring 2 and shift fork ontology 3 respectively, so as to the realization of return springs 4
Shift fork ontology 3 resets.Preferably, return springs 4 are the common cylinder spring for being installed on pilot sleeve 1.When shift fork ontology 3 to
When mobile close to shaft end ring 2, return springs 4 are compressed；When shift fork ontology 3 is to far from the movement of shaft end ring 2, bullet is resetted
Property part 4 restore deformation.
When normal condition, namely when transmission gear 01 and driving wheel relative rotation, stir shift fork ontology 3, shift fork ontology 3
It offsets with the second end of pilot sleeve 1, makes pilot sleeve 1 that transmission gear 01 be pushed to be axially moveable, realize shift.
When abnormal conditions, namely when the revolving speed of transmission gear 01 and driving wheel is zero, stir shift fork ontology 3, fork
Ontology is slided along pilot sleeve 1, and shift fork ontology 3 compresses return springs 4；Clutch is trampled, transmission gear 01 is opposite with driving wheel
Rotation, compressed return springs 4 push transmission gear 01 to be axially moveable during restoring deformation by elastic force,
To realize shift.
In conclusion either normal condition or abnormal conditions, shift fork provided by the present invention can be realized smoothly
Shift.
Preferably, the second end of pilot sleeve 1 has the collar stop that can offset with shift fork ontology 3, collar stop with
Shaft end ring 2 matches, and is preferably prevented from shift fork ontology 3 and is detached from pilot sleeve 1.
Further, abutment sleeve 5 is equipped between collar stop and shift fork ontology 3, abutment sleeve 5 is placed on pilot sleeve 1,
Abutment sleeve 5 and pilot sleeve 1 are coaxially disposed.To prevent shift fork ontology 3 relative to 1 radial rotating of pilot sleeve, abutment sleeve 5
It is equipped with positioning component 6 between shift fork ontology 3, guarantees that shift fork ontology 3 effectively stirs transmission gear 01.
Preferably, positioning component 6 includes location hole 61 and positioning column 62.Location hole 61 is set to shift fork ontology 3.Positioning column 62
It is fixedly arranged on abutment sleeve 5, when shift fork ontology 3 slides axially along pilot sleeve 1, positioning column 62 is slided relative to location hole 61.Phase
Ying Di, abutment sleeve 5 are installed with the fixation hole for stationary positioned column 62, and location hole 61, positioning column 62 and fixation hole are along axis
To extension and three is coaxially disposed.Certainly, positioning column 62 can also be fixedly arranged on shift fork ontology 3, and it is of the invention to have no effect on realization
Purpose.
It should be noted that the length of positioning column 62 is greater than the maximum moving distance of shift fork ontology 3, keep positioning column 62 abundant
Play positioning action.
Preferably, the sliding guide sleeve of shift fork ontology 3, which is equipped with, abuts step surface, and abutting step surface two sides is to reset for being socketed
The path shaft part of elastic component 4 and the major diameter shaft part for being equipped with radial shift fork, the outer diameter of major diameter shaft part are greater than the outer diameter of path shaft part,
To make return springs 4 offset with step surface is abutted.
Preferably, the invention also includes a series of adjusting sets 7 with different length, adjusting set 7 is alternatively installed on axis
It holds between retaining ring 2 and return springs 4, so that adjusting set 7 adjusts the compression degree of return springs 4.The axial direction of adjusting set 7 is long
Degree is longer, and 4 reduction length of return springs is shorter, and return springs 4 are applied to the elasticity of transmission gear 01 by shift fork ontology 3
Power is bigger, and speed change is faster and more reliable.Another convenience of adjusting set 7 can also prevent return springs 4 from wearing shaft end ring 2, prevent
Only return springs 4 deviate from pilot sleeve 1.Certainly, adjusting set 7 can be gasket with different thickness.
The present invention also provides a kind of vehicle, including transmission gear 01 and above-mentioned shift fork, shift fork is for stirring transmission gear 01
It is axially moveable.It can be realized smooth shift in view of shift fork, therefore functional reliability is higher.
The foregoing description of the disclosed embodiments can be realized those skilled in the art or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
Claims (6)
1. a kind of fork characterized by comprising
First end is installed with the pilot sleeve (1) of shaft end ring (2)；
The shift fork ontology that is slideably placed on the pilot sleeve (1) and can offset with the second end of the pilot sleeve (1)
(3)；
It is installed on the pilot sleeve (1) and both ends offsets with the shaft end ring (2) and the shift fork ontology (3) respectively, uses
In the return springs (4) for realizing that the shift fork ontology (3) resets.
2. shift fork according to claim 1, which is characterized in that the second end of the pilot sleeve (1) has collar stop,
Abutment sleeve (5) are equipped between the collar stop and the shift fork ontology (3), the abutment sleeve (5) is placed on the guiding
Sleeve (1), between the abutment sleeve (5) and the shift fork ontology (3) be equipped with for limit the shift fork ontology (3) relative to
The positioning component (6) of pilot sleeve (1) radial rotating.
3. shift fork according to claim 2, which is characterized in that the positioning component (6) includes:
Set on the location hole (61) of the shift fork ontology (3)；
It is fixedly arranged on the abutment sleeve (5) and the positioning column (62) relative to the location hole (61) sliding.
4. shift fork according to claim 2, which is characterized in that the shift fork ontology (3) includes sliding guide sleeve, the sliding
Guide sleeve is equipped with the abutting step surface that the return springs (4) offset.
5. shift fork according to claim 2, which is characterized in that further include it is a series of have different length and alternatively install
Between the shaft end ring (2) and the return springs (4), for adjusting the return springs (4) compression degree
Adjusting set (7).
6. a kind of vehicle, which is characterized in that described including transmission gear (01) and shift fork described in any one of claim 1 to 5
Shift fork is axially moveable for stirring transmission gear (01).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458258.9A CN110118255A (en) | 2019-05-29 | 2019-05-29 | A kind of vehicle and shift fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458258.9A CN110118255A (en) | 2019-05-29 | 2019-05-29 | A kind of vehicle and shift fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110118255A true CN110118255A (en) | 2019-08-13 |
Family
ID=67523632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910458258.9A Withdrawn CN110118255A (en) | 2019-05-29 | 2019-05-29 | A kind of vehicle and shift fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118255A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985665A (en) * | 2019-12-31 | 2020-04-10 | 湖北汽车工业学院 | Shifting fork abrasion prevention device of electric control electric mechanical automatic transmission and gear shifting method |
| CN113389897A (en) * | 2021-06-08 | 2021-09-14 | 重庆隆鑫通航发动机制造有限公司 | Gear shifting mechanism and engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070906A (en) * | 2006-05-09 | 2007-11-14 | 光阳工业股份有限公司 | Pull-fork assembly of vehicle |
| CN202579997U (en) * | 2012-03-29 | 2012-12-05 | 浙江吉利汽车研究院有限公司 | Automobile speed changer sifting fork device |
| CN104534085A (en) * | 2014-12-20 | 2015-04-22 | 重庆隆鑫发动机有限公司 | Transmission gear shifting structure assembly |
| CN204921958U (en) * | 2015-09-07 | 2015-12-30 | 重庆隆旺机电有限责任公司 | Fork assembly that shifts that steps down is obstructed |
| CN205260763U (en) * | 2015-09-07 | 2016-05-25 | 重庆隆旺机电有限责任公司 | Cam formula derailleur of shifting |
| CN205859057U (en) * | 2016-07-28 | 2017-01-04 | 威马农业机械有限公司 | Reverse gear change speed gear box |
| CN207796069U (en) * | 2017-12-26 | 2018-08-31 | 重庆旭乾通机械制造有限公司 | A kind of gear shift striking gear |
-
2019
- 2019-05-29 CN CN201910458258.9A patent/CN110118255A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070906A (en) * | 2006-05-09 | 2007-11-14 | 光阳工业股份有限公司 | Pull-fork assembly of vehicle |
| CN202579997U (en) * | 2012-03-29 | 2012-12-05 | 浙江吉利汽车研究院有限公司 | Automobile speed changer sifting fork device |
| CN104534085A (en) * | 2014-12-20 | 2015-04-22 | 重庆隆鑫发动机有限公司 | Transmission gear shifting structure assembly |
| CN204921958U (en) * | 2015-09-07 | 2015-12-30 | 重庆隆旺机电有限责任公司 | Fork assembly that shifts that steps down is obstructed |
| CN205260763U (en) * | 2015-09-07 | 2016-05-25 | 重庆隆旺机电有限责任公司 | Cam formula derailleur of shifting |
| CN205859057U (en) * | 2016-07-28 | 2017-01-04 | 威马农业机械有限公司 | Reverse gear change speed gear box |
| CN207796069U (en) * | 2017-12-26 | 2018-08-31 | 重庆旭乾通机械制造有限公司 | A kind of gear shift striking gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985665A (en) * | 2019-12-31 | 2020-04-10 | 湖北汽车工业学院 | Shifting fork abrasion prevention device of electric control electric mechanical automatic transmission and gear shifting method |
| CN113389897A (en) * | 2021-06-08 | 2021-09-14 | 重庆隆鑫通航发动机制造有限公司 | Gear shifting mechanism and engine |
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Legal Events
| 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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190813 |