CN207921316U - A kind of shift control mechanism of speed changer - Google Patents
A kind of shift control mechanism of speed changer Download PDFInfo
- Publication number
- CN207921316U CN207921316U CN201721894160.0U CN201721894160U CN207921316U CN 207921316 U CN207921316 U CN 207921316U CN 201721894160 U CN201721894160 U CN 201721894160U CN 207921316 U CN207921316 U CN 207921316U
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- CN
- China
- Prior art keywords
- shift
- pull rod
- gear
- selector fork
- speed changer
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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.)
- Withdrawn - After Issue
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Abstract
A kind of shift control mechanism of speed changer,Including first,Second,Third shift pull rod,And first,Second,Third selector fork,First,Second,Third shift pull rod is disposed side by side in transmission case body,One end of each shift pull rod flushes,The other end extends different distance towards same direction,First,Second,One end of third shift pull rod is respectively equipped with driving card slot,It is respectively equipped with limit card slot on each shift pull rod,Each limit card slot coordinates with self-locking device respectively forms axial limiting to shift pull rod,First,Second,Third selector fork is rotatably supported at by shift fork supporting pin in transmission case body respectively,First,Second,The power arm of third selector fork is respectively with first,Second,The other end of third shift pull rod is hinged,First,Second,The resistance arm of third selector fork is used to be connected with corresponding synchronizer,Realize shift.
Description
Technical field
The utility model is related to speed changer field, more particularly to a kind of shift control mechanism of speed changer.
Background technology
Traditional shift operating mechanism of speed changer includes two kinds of rotary shaft drawplate type and fork-shaft.Both operating mechanisms
Complicated, part is mostly and required precision is high, and the qualification rate of two kinds of operating mechanisms is relatively low in batch production process.In addition, this two
The yoke of the selector fork of the shift control mechanism of type is fixed with shifting shaft, and plug is hanging, directly synchronous with synchronizer
Sliding sleeve connects, and selector fork drives by shifting shaft, and the synchronous sliding sleeve of synchronizer is driven to slide axially realization shift, selector fork by
The torque arrived is larger, the plug reverse strain of selector fork, leads to that gearbox selector, resistance is big for shift, gear is fuzzy, customer satisfaction
It spends low.Therefore, how to simplify the structure of shift of transmission operating mechanism, improve shift of transmission fluency, be art technology
Personnel's urgent problem to be solved.
Invention content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of shift control mechanism of speed changer,
Simple in structure, compact, processing cost is low, is realized and is shifted gears by lever principle, has the advantages that shift is smooth and gear sense is clear.
The technical solution of the utility model is：A kind of shift control mechanism of speed changer, including the first shift pull rod, second
Shift pull rod, third shift pull rod and the first selector fork, the second selector fork, third selector fork, first shift
Pull rod, the second shift pull rod, third shift pull rod are disposed side by side in gear shift cover, and each one end for shifting gears pull rod flushes, another
End towards same direction extend different distance, first shift pull rod, second shift pull rod, third shift pull rod one end set respectively
There is the driving card slot that the gear shifting pulling head for driving mechanism is caught in, each shift pull rod is driven to be axially moveable, divides on each pull rod of shifting gears
Not She You limit card slot, each limit card slot respectively with self-locking device coordinate to shift pull rod formed axial limiting, described first changes
Gear shift fork, the second selector fork, third selector fork are rotatably supported at by shift fork supporting pin in transmission case body respectively,
First selector fork, the second selector fork, third selector fork power arm respectively with first shift pull rod, second shift draw
Bar, the other end of third shift pull rod are hinged, the first selector fork, the second selector fork, third selector fork resistance arm use
It is connected in corresponding synchronizer, realizes shift.
The first shift pull rod, the second shift pull rod, third shift pull rod are supported on gear shift cover by a support plate
It is interior.
The support plate is arranged by lifting in gear shift cover, and has clearance space between gear shift cover, bearing
The upper surface of plate is cambered surface.
The second shift pull rod is located between the first shift pull rod, third shift pull rod, the second shift pull rod other end
Development length be more than first shift the pull rod other end development length, and less than third shift the pull rod other end extension grow
Degree.
The resistance arm of first selector fork is used to connect with the synchronous sliding sleeve of four or five gear synchronizers, second shift
The resistance arm of shift fork is used to connect with the synchronous sliding sleeve of two or three gear synchronizers, and the resistance arm of the third selector fork is used for and one
The synchronous sliding sleeve of reverse gear synchronizer connects.
The gear shift cover inner wall is equipped with matches for the first shift pull rod, the second shift pull rod, third shift pull rod sliding
The sliding slot of conjunction.
The upper surface of each shift pull rod is respectively equipped with the first arc convex arranged side by side in an axial direction, the second arc convex, the
Space between one arc convex, the second arc convex forms limit card slot.
The self-locking device includes the guide being fixed on gear shift cover, and one end of guide is stretched into gear shift cover,
The other end is sealed by a bolt, and a self-lock pin is slidably fitted in guide, is arranged certainly between the pin tail and bolt of the self-lock pin
Spring is locked, the plunger that self-locking spring squeezes self-lock pin stretches into gear shift cover, is caught in limit card slot to shift pull rod shaft to limit
Position.
The self-lock pin is hollow pins, and the self-locking spring is assemblied in the inner cavity of hollow pins, and by bolt presses.
The side that the driving mechanism gear shifting pulling head is contacted with driving card groove groove wall is the cambered surface of protrusion.
It is had the advantages that using above-mentioned technical proposal：
The shift control mechanism of speed changer includes the first shift pull rod, the second shift pull rod, third shift pull rod, Yi Ji
One selector fork, the second selector fork, third selector fork, the first shift pull rod, the second shift pull rod, third shift are drawn
Bar is disposed side by side in gear shift cover, and each one end for shifting gears pull rod flushes, and the other end extends different distance towards same direction, the
One shift pull rod, the second shift pull rod, third shift pull rod one end be respectively equipped with and be caught in for the gear shifting pulling head of driving mechanism
Card slot is driven, drives each shift pull rod to be axially moveable, three shift pull rods are mutual indepedent, and other end mutual dislocation, in axis
To with spacing distance.Limit card slot is respectively equipped on each shift pull rod, each limit card slot coordinates with self-locking device respectively exchanges
It keeps off pull rod and forms axial limiting, prevent each shift pull rod from moving freely in an axial direction.First selector fork, the second shift are dialled
Fork, third selector fork are rotatably supported at by shift fork supporting pin in transmission case body respectively, make the first selector fork, the
Two selector forks, third selector fork form lever mechanism, are rotated by fulcrum of respective shift fork supporting pin.First shift is dialled
Fork, the second selector fork, third selector fork power arm respectively with first shift pull rod, second shift pull rod, third shift gears
The other end of pull rod is hinged, the first selector fork, the second selector fork, third selector fork resistance arm be used for it is corresponding same
It walks device to be connected, realization is shifted gears, the other end driving correspondence for pull rod of shifting gears by the first shift pull rod, the second shift pull rod, third
Selector fork rotated around fulcrum, drive the realization that slides axially of corresponding synchronizer synchronous sliding sleeve to put into gear, shift can be met
The demand of stroke, meanwhile, the deflection of each selector fork is small, and shift process is light and gear is clear, and it is smooth that shift is effectively ensured.
The first shift pull rod, the second shift pull rod, third shift pull rod are supported on gear shift cover by a support plate
Interior, which is arranged by lifting in gear shift cover, and has clearance space, the upper end of support plate between gear shift cover
Face is cambered surface, reduces the friction area of each shift pull rod and support plate, reduces the frictional resistance of each shift pull rod.
The upper surface of each shift pull rod is respectively equipped with the first arc convex arranged side by side in an axial direction, the second arc convex, the
Space between one arc convex, the second arc convex forms limit card slot, and when speed changer is in neutral gear position, self-locking device is located at
Between first arc convex, the second arc convex, prevent unexpected put into gear from causing the accident or destroying speed changer structure；When speed changer is hung
After gear, self-locking device is located at the outside of the first arc convex or the second arc convex, prevents from surprisingly moving back gear.
It is further described with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is Fig. 1 backwards to schematic diagram；
Fig. 3 is enlarged drawing at P in Fig. 1；
Fig. 4 is that the second selector fork of the utility model and the second shift pull rod are hinged schematic diagram；
Fig. 5 is that the utility model pull rod of respectively shifting gears is supported on support plate schematic diagram；
Fig. 6 is the synchronous sliding sleeve connection diagram of the second selector fork of the utility model and two or three gear synchronizers；
Fig. 7 is the schematic diagram of the utility model assembly in the transmission.
In attached drawing, 1 is the first shift pull rod, and 2 be the second shift pull rod, and 3 dial for third shift pull rod, 4 for the first shift
Fork, 5 be the second selector fork, and 6 be third selector fork, and 7 be gear shift cover, and 8 be gear shifting pulling head, and 9 be driving card slot, and 10 are limited
Position card slot, 10a are the first arc convex, and 10b is the second arc convex, and 11 be self-locking device, and 11a is guide, and 11b is bolt,
11c is self-lock pin, and 11d is self-locking spring, and 12 be shift fork supporting pin, and 13 be support plate, and 14 be case of transmission.
Specific implementation mode
It is a kind of specific embodiment of the shift control mechanism of speed changer referring to Fig. 1 to Fig. 6.The shift control of speed changer
Mechanism includes the first shift shift of pull rod 1, second pull rod 2, third shift pull rod 3 and the shift of the first selector fork 4, second
Shift fork 5, third selector fork 6.The first shift shift of pull rod 1, second pull rod 2, third shift pull rod 3 are disposed side by side on change
In fast device lid 7, each one end for shifting gears pull rod flushes, and the other end extends different distance towards same direction, described in the present embodiment
The first shift shift of pull rod 1, second pull rod 2, third shift pull rod 3 are supported on by a support plate 13 in gear shift cover 7, described
Support plate 13 by lift be arranged in gear shift cover 7, and between gear shift cover 7 have clearance space, support plate 13 it is upper
End face is cambered surface, and 7 inner wall of gear shift cover is equipped with to be slided for the first shift shift of pull rod 1, second pull rod 2, third shift pull rod 3
The sliding slot of cooperation makes the first shift pull rod, the second shift pull rod, third by the sliding slot on 7 inner wall of support plate and gear shift cover
Shift pull rod is slidably fitted in gear shift cover 7, wherein the second shift pull rod 2 is located at the first shift pull rod 1, third shift is drawn
Between bar 3, the development length of second shift 2 other end of pull rod is more than the development length of first shift 1 other end of pull rod, and is less than
The development length of third shift 3 other end of pull rod, makes the other end staggered positions of three shift pull rods.First shift pull rod 1, the
Two shift pull rods 2, third shift pull rod 3 one end be respectively equipped with the driving card slot 9 being caught in for the gear shifting pulling head 8 of driving mechanism,
Driving card slot positioned at three shift pull rod one end is arranged side by side, and for being caught in behind the gear shifting pulling head shift position of driving mechanism, drives
It moves corresponding shift pull rod to be axially moveable, to improve the smoothness that gear shifting pulling head is caught in corresponding driving card slot, driving mechanism
The side that gear shifting pulling head 8 is contacted with driving 9 cell wall of card slot is the cambered surface of protrusion.It is respectively equipped with limit card slot on each shift pull rod
10, each limit card slot 10 coordinates with self-locking device 11 respectively forms axial limiting to shift pull rod, and in the present embodiment, each shift is drawn
The upper surface of bar is respectively equipped with the first arc convex 10a, the second arc convex 10b arranged side by side in an axial direction, the first arc convex
Space between 10a, the second arc convex 10b forms limit card slot 10, and the self-locking device 11 includes being fixed at speed change
One end of guide 11a on device lid 7, guide 11a are stretched into gear shift cover 7, and the other end is sealed by a bolt 11b, a self-locking
Pin 11c is slidably fitted in guide 11a, self-locking spring 11d is arranged between the pin tail and bolt 11b of self-lock pin 11c, in order to protect
Self-locking spring position is demonstrate,proved to stablize, the self-lock pin 11c is hollow pins, and the self-locking spring 11d is assemblied in the inner cavity of hollow pins,
And compressed by bolt 11b, the plunger that self-locking spring 11d squeezes self-lock pin 11c stretches into gear shift cover 7, and it is convex to be caught in the first arc
It rises between the second arc convex, to shift pull rod shaft to limit, speed changer is in neutral gear position at this time；It is dialled when by gear shifting pulling head
When moving gear pull rod axial movement, the self-lock pin of self-locking device is returned by the first arc convex or the second arc convex top, self-locking
Spring is compressed, and after the first arc convex or the second arc convex cross self-lock pin, self-lock pin is multiple under self-locking spring effect
Positioned at the outside of the first arc convex or the second arc convex, prevents shift pull rod from surprisingly retracting, be guaranteed at specified gear.
First selector fork 4, the second selector fork 5, third selector fork 6 are rotatably supported by shift fork supporting pin 12 respectively
In case of transmission 14, the first selector fork 4, the second selector fork 5, third selector fork 6 power arm pass through circle respectively
Shift gears pull rod 2, the other end of third shift pull rod 3 of pin and the first shift pull rod 1, second is hinged, the first selector fork 4, the
Two selector forks 5, third selector fork 6 resistance arm be used to be connected with corresponding synchronizer, realize shift, in the present embodiment,
The resistance arm of first selector fork 4 is used to connect with the synchronous sliding sleeve of four or five gear synchronizers, four or five gear synchronizer of control
Synchronous sliding sleeve moves axially, and control speed changer is located at five gears or four gears；The resistance arm of second selector fork 5 be used for
The synchronous sliding sleeve connection of two or three gear synchronizers, the synchronous sliding sleeve axial movement of two or three gear synchronizer of control, control speed changer are located at
Two gears or three gears；The resistance arm of the third selector fork 6 is controlled for being connect with the synchronous sliding sleeve of a reverse gear synchronizer
The synchronous sliding sleeve of one reverse gear synchronizer moves axially, and control speed changer is located at a gear or position of reversing gear.
Referring to Fig. 7, for the schematic diagram of the utility model assembly in the transmission.An axis 51,52, two axis of the speed changer
In on same straight line, the left end of two axis 52 is supported on the right end of an axis, jackshaft 53 and an axis, two axis parallels by bearing
Row.The circumferentially fixed four gears driving gear of the right end of one axis, be set with successively from left to right on two axis five gear driven gears, three gears from
Moving gear, two gear driven gears, a gear driven gear and driven gear that reverses gear, four or five gear synchronizers be located at four gear driving gears,
Between five gear driven gears, two or three gear synchronizers are located between two gear driven gears, three gear driven gears, a reverse gear synchronizer position
Between a gear driven gear and the driven gear that reverses gear, the synchronous sliding sleeve of the resistance arm of the first selector fork and four or five gear synchronizers
Connection, the resistance arm of the second selector fork with two or three gear synchronizers synchronous sliding sleeve connect, the resistance arm of third selector fork and
The synchronous sliding sleeve of one reverse gear synchronizer connects.Other structures are conventional transmission device structure.
The left end of one axis is power intake, and the right end of two axis is power output end.
When the self-lock pin of three self-locking devices is inserted into corresponding limit card slot, each synchronizer is detached from driving gear,
In neutral gear position.
When control speed changer is located at the first gear, third shift pull rod is stirred by gear shifting pulling head and is moved right, is driven
The resistance arm of third selector fork rotates clockwise, and makes the synchronous sliding sleeve of a reverse gear synchronizer and a gear driven gear knot in left side
It closes, power drives two axis with a gear power output through four gear driving gears, jackshaft, a gear driven gear, a reverse gear synchronizer.
When control speed changer is located at the second gear, the second shift pull rod is stirred by gear shifting pulling head and is moved to the left, is driven
The resistance arm of second selector fork rotates counterclockwise, and makes the synchronous sliding sleeve of two or three gear synchronizers and the two gear driven gear knots on right side
It closes, power drives two axis with two gear power outputs through four gear driving gears, jackshaft, two gear driven gears, two or three gear synchronizers.
When control speed changer is located at third gear, the second shift pull rod is stirred by gear shifting pulling head and is moved right, is driven
The resistance arm of second selector fork rotates clockwise, and makes the synchronous sliding sleeve of two or three gear synchronizers and the three gear driven gear knots in left side
It closes, power drives two axis with three gear power outputs through four gear driving gears, jackshaft, three gear driven gears, two or three gear synchronizers.
When control speed changer is located at fourth gear position, the first shift pull rod is stirred by gear shifting pulling head and is moved right, is driven
The resistance arm of first selector fork rotates clockwise, and makes the synchronous sliding sleeve of four or five gear synchronizers and the four gear driving gear knots in left side
It closes, power drives two axis with four gear power outputs through four gear driving gears, four or five gear synchronizers.
When control speed changer is located at fifth gear position, the first shift pull rod is stirred by gear shifting pulling head and is moved to the left, is driven
The resistance arm of first selector fork rotates counterclockwise, and makes the synchronous sliding sleeve of four or five gear synchronizers and the five gear driven gear knots on right side
It closes, power drives two axis with five gear power outputs through four gear driving gears, jackshaft, five gear driven gears, four or five gear synchronizers.
When control speed changer be located at reverse gear when, third pull rod of shifting gears is stirred by gear shifting pulling head and is moved to the left, drives the
The resistance arm of three selector forks rotates counterclockwise, and makes the synchronous sliding sleeve of a reverse gear synchronizer and the driven gear knot that reverses gear on right side
It closes, power drives two axis to reverse gear through four gear driving gear, jackshafts, the Sui's tooth that reverses gear, the driven gear that reverses gear, a reverse gear synchronizer
Power output.
Claims (10)
1. a kind of shift control mechanism of speed changer, it is characterised in that：Including the first shift pull rod（1）, second shift pull rod
（2）, third shift gears pull rod（3）And first selector fork（4）, the second selector fork（5）, third selector fork（6）, described
First shift pull rod（1）, second shift pull rod（2）, third shift gears pull rod（3）It is disposed side by side on gear shift cover（7）It is interior, it is each to shift gears
One end of pull rod flushes, and the other end extends different distance, the first shift pull rod towards same direction（1）, second shift pull rod
（2）, third shift gears pull rod（3）One end be respectively equipped with the gear shifting pulling head for driving mechanism（8）The driving card slot being caught in（9）, drive
It moves each shift pull rod to be axially moveable, limit card slot is respectively equipped on each pull rod of shifting gears（10）, each limit card slot（10）Respectively with
Self-locking device（11）Cooperation forms axial limiting, first selector fork to shift pull rod（4）, the second selector fork（5）,
Three selector forks（6）Pass through shift fork supporting pin respectively（12）It is rotatably supported at case of transmission（14）Interior, the first shift is dialled
Fork（4）, the second selector fork（5）, third selector fork（6）Power arm respectively with first shift pull rod（1）, second shift draw
Bar（2）, third shift gears pull rod（3）The other end it is hinged, the first selector fork（4）, the second selector fork（5）, third shift dial
Fork（6）Resistance arm be used for corresponding synchronizer be connected, realize shift.
2. the shift control mechanism of speed changer according to claim 1, it is characterised in that：The first shift pull rod（1）、
Second shift pull rod（2）, third shift gears pull rod（3）Pass through a support plate（13）It is supported on gear shift cover（7）It is interior.
3. the shift control mechanism of speed changer according to claim 2, it is characterised in that：The support plate（13）By hanging
Installing is set in gear shift cover（7）It is interior, and and gear shift cover（7）Between have clearance space, support plate（13）Upper surface be arc
Face.
4. the shift control mechanism of speed changer according to claim 1, it is characterised in that：The second shift pull rod（2）
Positioned at the first shift pull rod（1）, third shift gears pull rod（3）Between, the second shift pull rod（2）The development length of the other end is more than the
One shift pull rod（1）The development length of the other end, and less than third shift pull rod（3）The development length of the other end.
5. the shift control mechanism of speed changer according to claim 1, it is characterised in that：First selector fork（4）
Resistance arm be used for four or five gear synchronizers synchronous sliding sleeve connect, second selector fork（5）Resistance arm be used for and two
The synchronous sliding sleeve connection of three gear synchronizers, the third selector fork（6）Resistance arm for synchronous with a reverse gear synchronizer
Sliding sleeve connects.
6. the shift control mechanism of speed changer according to claim 1, it is characterised in that：The gear shift cover（7）Inner wall
It is equipped with for the first shift pull rod（1）, second shift pull rod（2）, third shift gears pull rod（3）The sliding slot being slidably matched.
7. the shift control mechanism of speed changer according to claim 1, it is characterised in that：The upper surface of each shift pull rod is respectively
Equipped with the first arc convex arranged side by side in an axial direction（10a）, the second arc convex（10b）, the first arc convex（10a）,
Two arc convex（10b）Between space formed limit card slot（10）.
8. the shift control mechanism of speed changer according to claim 1, it is characterised in that：The self-locking device（11）Including
It is fixed at gear shift cover（7）On guide（11a）, guide（11a）One end stretch into gear shift cover（7）Interior, the other end is logical
Cross a bolt（11b）Sealing, a self-lock pin（11c）It is slidably fitted in guide（11a）It is interior, the self-lock pin（11c）Pin tail and spiral shell
Bolt（11b）Between self-locking spring is set（11d）, self-locking spring（11d）Squeeze self-lock pin（11c）Plunger stretch into gear shift cover
（7）In, it is caught in limit card slot（10）In to shift pull rod shaft to limit.
9. the shift control mechanism of speed changer according to claim 8, it is characterised in that：The self-lock pin（11c）For sky
Heart pin, the self-locking spring（11d）It is assemblied in the inner cavity of hollow pins, and by bolt（11b）It compresses.
10. the shift control mechanism of speed changer according to claim 1, it is characterised in that：The driving mechanism shift is dialled
Head（8）With driving card slot（9）The side of cell wall contact is the cambered surface of protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721894160.0U CN207921316U (en) | 2017-12-29 | 2017-12-29 | A kind of shift control mechanism of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721894160.0U CN207921316U (en) | 2017-12-29 | 2017-12-29 | A kind of shift control mechanism of speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207921316U true CN207921316U (en) | 2018-09-28 |
Family
ID=63615609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721894160.0U Withdrawn - After Issue CN207921316U (en) | 2017-12-29 | 2017-12-29 | A kind of shift control mechanism of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207921316U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906196A (en) * | 2017-12-29 | 2018-04-13 | 綦江齿轮传动有限公司 | A kind of shift control mechanism of speed changer |
| CN113586716A (en) * | 2021-07-05 | 2021-11-02 | 浙江万里扬股份有限公司 | Gearshift and vehicle |
-
2017
- 2017-12-29 CN CN201721894160.0U patent/CN207921316U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906196A (en) * | 2017-12-29 | 2018-04-13 | 綦江齿轮传动有限公司 | A kind of shift control mechanism of speed changer |
| CN113586716A (en) * | 2021-07-05 | 2021-11-02 | 浙江万里扬股份有限公司 | Gearshift and vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180928 Effective date of abandoning: 20230630 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180928 Effective date of abandoning: 20230630 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |