CN106481802B - shift actuator - Google Patents
shift actuator Download PDFInfo
- Publication number
- CN106481802B CN106481802B CN201611104721.2A CN201611104721A CN106481802B CN 106481802 B CN106481802 B CN 106481802B CN 201611104721 A CN201611104721 A CN 201611104721A CN 106481802 B CN106481802 B CN 106481802B
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- CN
- China
- Prior art keywords
- connecting portion
- rocker arm
- arm
- assembly
- drive train
- 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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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
-
- 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
- F16H2306/00—Shifting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a kind of shift actuators comprising first motor, drive train components, disconnection and reset assembly and gearbox rocker arm assembly；The input terminal of drive train components and the output axis connection of first motor；Gearbox rocker arm assembly disconnects with reset assembly and drive train components or restores connection by disconnecting.The present invention is disconnected by setting with reset assembly, it can be achieved that the automatic of drive train components and gearbox rocker arm assembly disconnects and connect automatically；When normal work, the driving force of motor reliably can be passed to gearbox rocker arm assembly in time by drive train components；When being in an emergency to avoid position of accidentally putting into gear, the connection between drive train components and gearbox rocker arm assembly can be disconnected automatically；After emergency releases, and the connection between drive train components and gearbox rocker arm assembly can be restored automatically.Thus it can thoroughly eliminate and accidentally hang security risk brought by neutral gear, ensure automobile driving safe, greatly improved the driving comfort sense of automobile.
Description
Technical field
The present invention relates to technical field of vehicle, and in particular to a kind of shift actuator.
Background technique
Shift actuator receives the shift signal from selector, and according to shift signal for being fixed on speed changer
It drives gearbox shifting rocker arm and realizes shift.Shift actuator generally comprises transmission chain and gearbox rocker arm, transmission chain and change
Fast case rocker arm is directly connected to, the driving force of motor gearbox rocker arm is passed to by transmission chain and drive gearbox rocker motion from
And realize shift.During traveling, it cannot generally be disconnected automatically between motor, transmission chain and gearbox rocker arm, tight
When anxious situation occurs, due to the presence of various factors, often there is a situation where accidentally putting into gear, serious safety is thus brought
Hidden danger.
Summary of the invention
Transmission chain is able to achieve the object of the present invention is to provide one kind and gearbox rocker arm disconnects automatically and automatic recovery connects
Shift actuator.
To achieve the goals above, the present invention provides a kind of shift actuators comprising first motor, transmission chain group
Part, disconnection and reset assembly and gearbox rocker arm assembly；The input terminal of the drive train components is defeated with the first motor
Axis connection out；The gearbox rocker arm assembly is disconnected with reset assembly and the drive train components by disconnecting or restores to connect
It connects.
In above-mentioned shift actuator, the gearbox rocker arm assembly includes gearbox rocker arm and is fixedly arranged on the gearbox
Rail arms on rocker arm；The disconnection includes being slidably connected with the rail arms and the gearbox capable of being driven to shake with reset assembly
The travelling arm that arm rotates and the driving assembly for driving the travelling arm to slide in the rail arms；The transmission chain group
Part includes the first connecting portion for connecting with the travelling arm；When emergency, the travelling arm is far from first connection
Portion's sliding, the first connecting portion and the travelling arm disconnect；After emergency releases, the travelling arm is close to described first and connects
Socket part sliding, the first connecting portion restore the connection with the travelling arm.
In above-mentioned shift actuator, the drive train components include screw rod, the screw rod spiral shell with screw rod mating connection
Guide pad that is female and being set on the feed screw nut；The output axis connection of one end of the screw rod and the first motor；
The guide pad is rotated for limiting the feed screw nut so that the feed screw nut is only moved along the screw rod length direction, and
The first connecting portion is set on the guide pad.
In above-mentioned shift actuator, the driving component includes the second motor, the output shaft company with second motor
The disc cam that connects and holding down assembly for elastic compression power is provided for the travelling arm；The travelling arm is equipped with and the disk
The contact portion of shape cam engagement；When emergency, under the action of the disc cam, the travelling arm is connect with described first
Portion disconnects；After emergency releases, under the action of described hold down assembly, the travelling arm is connect with the first connecting portion.
In above-mentioned shift actuator, the radius of the disc cam is incrementally increased.
In above-mentioned shift actuator, the travelling arm includes the sliding part slided in the rail arms and the second connection
Portion；One end of the second connecting portion is connect with the sliding part, and the other end of the second connecting portion is equipped with arc groove；It is described
The circular cylinder with arc groove cooperation is installed in first connecting portion.
In above-mentioned shift actuator, the two sides of the second connecting portion are equipped with guiding surface.
In above-mentioned shift actuator, the contact portion is arc-shaped.
It is described to hold down assembly between the travelling arm and the gearbox rocker arm in above-mentioned shift actuator.
It is described to hold down assembly including guide post and cover in the guide post upper spring in above-mentioned shift actuator；It is described
Travelling arm is equipped with fixing seat, and the fixing seat is equipped with pilot hole；One end of the guide post is fixed on the gearbox and shakes
On arm, the other end of the guide post passes through the pilot hole and can slide in the pilot hole.
Implement shift actuator of the invention, has the following advantages compared with the existing technology：
The present invention disconnected by setting with reset assembly, it can be achieved that drive train components and gearbox rocker arm assembly from dynamic circuit breaker
It opens and connect automatically；When normal work, the driving force of motor reliably can be passed to gearbox rocking arm set in time by drive train components
Part；When being in an emergency to avoid position of accidentally putting into gear, can disconnect automatically between drive train components and gearbox rocker arm assembly
Connection；After emergency releases, and the connection between drive train components and gearbox rocker arm assembly can be restored automatically.Thus may be used
It thoroughly eliminates and accidentally hangs security risk brought by neutral gear, ensured automobile driving safe, the driving for greatly improving automobile is relaxed
Suitable sense.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of shift actuator of the invention；
Fig. 2 is the top view of shift actuator of the invention；
Fig. 3 is drive train components structural schematic diagram of the invention；
Fig. 4 is travelling arm structural schematic diagram of the invention；
Fig. 5 is gearbox rocker arm assembly structural schematic diagram of the invention；
Fig. 6 is schematic diagram when shift actuator of the invention works normally；
Fig. 7 makes the schematic diagram of execution selector of the invention when emergency disconnects；
Fig. 8 is that the selector that executes of the invention releases schematic diagram when restoring connection in emergency；
Wherein, 1, first motor；2, drive train components；21, screw rod；22, feed screw nut；23, guide pad；24, first connects
Socket part；241, circular cylinder；3, disconnection and reset assembly；30, driving assembly；31, travelling arm；32, the second motor；33, dish type
Cam；34, it holds down assembly；311, contact portion；312, arc groove；313, guiding surface；314, sliding part；315, the second connection
Portion；316, fixing seat；317, pilot hole；341, spring；342, guide post；4, gearbox rocker arm assembly；41, gearbox rocker arm；
42, rail arms.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figures 1 to 6, the preferred embodiment of the present invention, a kind of shift actuator comprising first motor 1, transmission
Chain component 2 disconnects and reset assembly 3 and gearbox rocker arm assembly 4；The input terminal of drive train components 2 is defeated with first motor 1
Axis connection out；Gearbox rocker arm assembly 4 disconnects with reset assembly 3 and drive train components 2 or restores connection by disconnecting.Tool
Body, when normal work, the driving force of motor reliably can pass to gearbox rocker arm assembly 4 in time by drive train components 2；When
To avoid position of accidentally putting into gear when being in an emergency, which can disconnect drive train components 2 and gearbox rocking arm set automatically
Connection between part 4；After emergency releases, and it can restore automatically between drive train components 2 and gearbox rocker arm assembly 4
Connection.Thus it can thoroughly eliminate and accidentally hang security risk brought by neutral gear, ensure automobile driving safe, greatly improved vapour
The driving comfort sense of vehicle.
In the present embodiment, gearbox rocker arm assembly 4 includes gearbox Rocker arm 41 and is fixedly arranged on leading on gearbox Rocker arm 41
Rail arm 42 (as shown in Figure 5)；Disconnecting with reset assembly 3 includes being slidably connected with rail arms 42 and capable of driving 1 turn of gearbox Rocker arm 4
Dynamic travelling arm 31 and the driving assembly 30 for driving travelling arm 31 to slide in rail arms 42；Drive train components 2 include
First connecting portion 24 for being connect with travelling arm 31；When emergency, travelling arm 31 is slided far from first connecting portion 24, and first
Interconnecting piece 24 and travelling arm 31 disconnect；When emergency releases, travelling arm 31 is close to the sliding of first connecting portion 24, first connecting portion
24 restore the connection with travelling arm 31.In this way, driving sliding energy of the travelling arm 31 in rail arms 42 by driving assembly 30
Realize the connection and disconnection of drive train components 2 and gearbox rocker arm assembly 4.
In the present embodiment, drive train components 2 include screw rod 21, the feed screw nut 22 being cooperatively connected with screw rod 21 and are arranged
Guide pad 23 (as shown in Figure 3) on feed screw nut 22；One end of screw rod 21 and the output axis connection of first motor 1；Guiding
Block 23 is rotated for limiting feed screw nut 22 so that feed screw nut 22 is only moved along 21 length direction of screw rod, and first connecting portion 24
On guide pad 23.Specifically, shift actuator generally further includes actuator shell, by make the one side of guide pad 23 with
As soon as the medial surface sliding contact of actuator shell, can limit the rotation of feed screw nut 22.Since guide pad 23 limits screw rod
The rotation of nut 22, screw rod 21 is in first motor 1 when being rotated by, and feed screw nut 22 can only be for linear motion, while band
First connecting portion 24 on action-oriented block 23 is for linear motion, drives gearbox rocker arm finally by travelling arm 31 and rail arms 42
41 rotations, to realize shift.
In the present embodiment, driving assembly 30 includes the second motor 32, convex with the dish type of the output axis connection of the second motor 32
Wheel 33 and 34 are held down assembly for what travelling arm 31 provided elastic compression power；Travelling arm 31, which is equipped with, to be cooperated with disc cam 33
Contact portion 311；When emergency, under the action of disc cam 33, travelling arm 31 and first connecting portion 24 are disconnected；Emergency
After releasing, hold down assembly 34 under the action of, travelling arm 31 is connect with first connecting portion 24.In case of emergency, such as Fig. 7 institute
Show, the second motor 32 drives disc cam 33 to rotate along the direction that radius increases, when on 33 contact slide arm 31 of disc cam
Can be compressed after contact portion 311 travelling arm 31 make its in rail arms 42 far from first connecting portion 24 slide, first connecting portion 24 with
Travelling arm 31 disconnects；After emergency releases, as shown in figure 8, the second motor 32 drives disc cam 33 along the side that radius reduces
To rotation, meanwhile, under the action of holding down assembly 34 elastic compression power, travelling arm 31 be close to first connecting portion 24 sliding until with
First connecting portion 24 connects.
The radius of the disc cam 33 of the present embodiment incrementally increases, approximate fan-shaped.In this way, disc cam 33 makes travelling arm
31 far from first connecting portion 24 and close to first connecting portion 24 be just two opposite rotation directions, thereby may be ensured that dish type is convex
Wheel 33 can be contacted with the contact portion 311 of travelling arm 31 always in the course of rotation.That is, to realize drive train components 2
Automatic disconnection and automatic recovery with gearbox rocker arm assembly 4 connect, and should guarantee as far as possible disc cam 33 in the course of rotation
It can be contacted always with the contact portion 311 of travelling arm 31, being otherwise likely to occur stuck or even entire shift actuator of damage etc. cannot
The problem of normal work.
In the present embodiment, as shown in figure 4, travelling arm 31 includes that the sliding part 314 slided in rail arms 42 and second connect
Socket part 315；One end of second connecting portion 315 is connect with sliding part 314, and the other end of second connecting portion 315 is equipped with arc groove
312, the two sides of second connecting portion 315 are equipped with guiding surface 313, are installed in first connecting portion 24 and the cooperation of arc groove 312
Circular cylinder 241.When emergency, as shown in fig. 7, circular cylinder 241 is detached from arc groove under the action of disc cam 33
312 and disconnect；After emergency releases, rotated as shown in figure 8, disc cam 33 reduces direction to radius, travelling arm 31
Hold down assembly 34 under the action of it is close to first connecting portion 24 along rail arms 42, at this point, if arc groove 312 is just aligned circle
Cylinder 241 can directly restore to connect, if arc groove 312 is not aligned with circular cylinder 241, at this moment, circular cylinder 241 will be with
Guiding surface 313 in second connecting portion 315 contacts, and due to the movement of screw rod 21, circular cylinder 241 can be in guiding surface 313
Upper generation lateral force, lateral force pushes travelling arm 31 to slide in rail arms 42, until circular cylinder 241 falls into arc groove again
In 312, to restore to connect.
Preferably, contact portion 311 is arc-shaped.Disc cam 33 contacts with contact portion 311 and travelling arm 31 is driven to slide
Afterwards, due to the rotation of disc cam 33, it necessarily will drive travelling arm 31 and gearbox rocker arm assembly 4 rotate, in this way, by contact portion
The 311 setting rotational angles in the arc-shaped that can reduce travelling arm 31 and gearbox rocker arm assembly 4, thus when restoring connection,
Circular cylinder 241 can fall into arc groove 312 again more quickly.
In the present embodiment, 34 are held down assembly set between travelling arm 31 and gearbox Rocker arm 41.In this way, in first connecting portion
24 restore 34 to play the role of pushing travelling arm 31 with holding down assembly in the connection procedure of travelling arm 31, when normal work, compress
Component 34 can guarantee the fixing that first connecting portion 24 is connect with travelling arm 31 again.
In the present embodiment, holding down assembly 34 includes guide post 342 and covering in 342 upper spring 341 of guide post；On travelling arm 31
Equipped with fixing seat 316, fixing seat 316 is equipped with pilot hole 317；One end of guide post 342 is fixed on gearbox Rocker arm 41, is led
Pilot hole 317 is passed through to the other end of column 342 and can be slided in pilot hole 317.In this way, spring 341 is made by guide post 342
For guiding, pressing force is provided for travelling arm 31.
In conclusion execution selector of the invention is compact-sized, and it is able to achieve drive train components 2 and gearbox rocking arm set
The automatic disconnection of part 4 restores with automatic, thus completely eliminates and accidentally hangs security risk brought by neutral gear, has ensured car steering
Safety, greatly improves the driving comfort sense of automobile.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement is also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of shift actuator, it is characterised in that：Including first motor, drive train components, disconnection and reset assembly and change
Fast case rocker arm assembly；The output axis connection of the input terminal of the drive train components and the first motor；The gearbox rocker arm
Component disconnects with reset assembly and the drive train components or restores connection by disconnecting；
The disconnection includes being slidably connected with the gearbox rocker arm assembly and capable of driving the gearbox rocker arm with reset assembly
The travelling arm that component rotates and the driving assembly for driving the travelling arm to slide in the gearbox rocker arm assembly；Institute
Stating drive train components includes the first connecting portion for connecting with the travelling arm；
When emergency, the travelling arm is slided far from the first connecting portion, and the first connecting portion and the travelling arm are disconnected
It opens；After emergency releases, the travelling arm is close to the first connecting portion sliding, and the first connecting portion is restored and the cunning
The connection of swing arm.
2. shift actuator according to claim 1, it is characterised in that：The gearbox rocker arm assembly includes that gearbox shakes
Arm and the rail arms being fixedly arranged on the gearbox rocker arm；The travelling arm and the rail arms are slidably connected and described in capable of driving
The rotation of gearbox rocker arm, the driving component is for driving the travelling arm to slide in the rail arms.
3. shift actuator according to claim 2, it is characterised in that：The drive train components include screw rod, with it is described
The feed screw nut and the guide pad being set on the feed screw nut that screw rod is cooperatively connected；One end of the screw rod and described the
The output axis connection of one motor；The guide pad is rotated for limiting the feed screw nut so that the feed screw nut is only along described
Screw rod length direction is mobile, and the first connecting portion is set on the guide pad.
4. shift actuator according to claim 2, it is characterised in that：The driving component includes the second motor and institute
It states the disc cam of the output axis connection of the second motor and provides holding down assembly for elastic compression power for the travelling arm；It is described
Travelling arm is equipped with the contact portion cooperated with the disc cam；
When emergency, under the action of the disc cam, the travelling arm and the first connecting portion are disconnected；Emergency
After releasing, under the action of described hold down assembly, the travelling arm is connect with the first connecting portion.
5. shift actuator according to claim 4, it is characterised in that：The radius of the disc cam incrementally increases.
6. shift actuator according to claim 4, it is characterised in that：The travelling arm includes sliding in the rail arms
Dynamic sliding part and second connecting portion；One end of the second connecting portion is connect with the sliding part, the second connecting portion
The other end is equipped with arc groove；The circular cylinder with arc groove cooperation is installed in the first connecting portion.
7. shift actuator according to claim 6, it is characterised in that：It is oblique that the two sides of the second connecting portion are equipped with guiding
Face.
8. shift actuator according to claim 6, it is characterised in that：The contact portion is arc-shaped.
9. according to the described in any item shift actuators of claim 4-8, it is characterised in that：It is described to hold down assembly set on the cunning
Between swing arm and the gearbox rocker arm.
10. shift actuator according to claim 9, it is characterised in that：It is described to hold down assembly including guide post and cover
The guide post upper spring；The travelling arm is equipped with fixing seat, and the fixing seat is equipped with pilot hole；The one of the guide post
End is fixed on the gearbox rocker arm, and the other end of the guide post passes through the pilot hole and can slide in the pilot hole
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611104721.2A CN106481802B (en) | 2016-12-05 | 2016-12-05 | shift actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611104721.2A CN106481802B (en) | 2016-12-05 | 2016-12-05 | shift actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481802A CN106481802A (en) | 2017-03-08 |
| CN106481802B true CN106481802B (en) | 2018-11-20 |
Family
ID=58274631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611104721.2A Active CN106481802B (en) | 2016-12-05 | 2016-12-05 | shift actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481802B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606130B (en) * | 2017-08-03 | 2019-02-19 | 广州汽车集团股份有限公司 | Gear shifting actuating mechanism |
| CN110541932B (en) * | 2018-05-29 | 2020-12-15 | 上汽通用汽车有限公司 | Gear shifting actuator and gearbox |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133407A (en) * | 2014-03-26 | 2016-11-16 | 舍弗勒技术股份两合公司 | Single-motor transmission actuator having a gate for selecting and shifting gears of a motor vehicle transmission device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650420A (en) * | 1979-10-02 | 1981-05-07 | Fuji Heavy Ind Ltd | Operation device of speed change gear for car |
| US4619151A (en) * | 1985-04-19 | 1986-10-28 | Rockwell International Corporation | Two speed axle shift actuator |
| CN202301904U (en) * | 2011-10-23 | 2012-07-04 | 河南科技大学 | Automatic gear position selection and shift mechanism for speed changing box |
| CN102678913B (en) * | 2011-11-22 | 2014-10-15 | 河南科技大学 | Screw rod gear selecting and gear shifting mechanism |
| CN203670742U (en) * | 2013-12-26 | 2014-06-25 | 东风商用车有限公司 | Hybrid AMT transmission |
| CN206257262U (en) * | 2016-12-05 | 2017-06-16 | 广州汽车集团股份有限公司 | Shift actuator |
-
2016
- 2016-12-05 CN CN201611104721.2A patent/CN106481802B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133407A (en) * | 2014-03-26 | 2016-11-16 | 舍弗勒技术股份两合公司 | Single-motor transmission actuator having a gate for selecting and shifting gears of a motor vehicle transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106481802A (en) | 2017-03-08 |
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