CN209309296U - Speed changer and its gearshift - Google Patents
Speed changer and its gearshift Download PDFInfo
- Publication number
- CN209309296U CN209309296U CN201821406411.0U CN201821406411U CN209309296U CN 209309296 U CN209309296 U CN 209309296U CN 201821406411 U CN201821406411 U CN 201821406411U CN 209309296 U CN209309296 U CN 209309296U
- Authority
- CN
- China
- Prior art keywords
- shift
- transmission
- gearshift
- nut
- case
- 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.)
- Active
Links
Landscapes
- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model relates to a kind of speed changer and its gearshifts.Gearshift is set to case of transmission, and gearshift includes driving assembly and shift assembly.The driving member that driving assembly includes actuator and is movably contained in transmission case body, driving member and actuator are sequentially connected.Shift assembly is contained in transmission case body, shift assembly include shift gears part and with the shift fork that is fixedly connected of shift part, shift part is arranged in case of transmission, shifts gears part and driving member is sequentially connected far from one end of actuator, driving member is mobile, can drive shift part and shift fork sliding axially along shift part.The utility model relates to speed changer and its gearshift transmission efficiency with higher.
Description
Technical field
The utility model relates to automobile technical field more particularly to a kind of speed changers and its gearshift.
Background technique
Gearshift is provided in automobile technical field, speed changer, vapour is adjusted by the conversion of gear in gearshift
The travel speed of vehicle, to meet drive demand.Traditional gearshift based on AMT platform development, the kind of drive is complicated, causes
Shift low efficiency.
Utility model content
Based on this, it is necessary to aiming at the problem that traditional shift low efficiency, provide a kind of speed changer for shifting gears high-efficient and
Its gearshift.
A kind of gearshift, is set to case of transmission, and the gearshift includes:
Driving assembly, the driving member including actuator and being movably contained in the transmission case body, the transmission
Part and the actuator are sequentially connected；
Shift assembly is contained in the transmission case body, the shift assembly include shift part and with the shift part
The shift fork being fixedly connected, the shift part are arranged in the case of transmission, the shift part and the driving member far from described
One end of actuator is sequentially connected, and the driving member is mobile, and the shift part and the shift fork can be driven along the shift part
It slides axially.
The actuator is motor in one of the embodiments, and the motor is installed on the outer of the case of transmission
Wall, the driving member are worm gear, and the shift part is worm screw, and the worm gear is arranged and is fixed on the output shaft of the motor, institute
Worm screw is stated to engage with the excircle of the worm gear.
The actuator is motor in one of the embodiments, and the motor is installed on the outer of the case of transmission
Wall, the driving member are screw rod, and the shift part is the nut of strip, and the output shaft of the motor is arranged in the speed changer
Shell, and connect with the screw rod transmission, the one end of the screw rod far from the motor is connect with the nut thread.
The screw rod is ball screw in one of the embodiments,.
It in one of the embodiments, further include the drive bearing and shifting shaft for being installed on the case of transmission inner wall
It holds, the drive bearing is sheathed on the screw rod, and the shift bearing holder (housing, cover) is set to the nut.
It in one of the embodiments, further include the end ring for being set to the case of transmission inner wall, the transmission
Bearing and the nut interval are arranged, and the end ring is sheathed on the screw rod, and is held on the screw rod and the nut
Between.
It in one of the embodiments, further include the position sensor for being fixed on the shift part, the position sensor
For detecting the location parameter of the shift part, and trigger signal is sent to the actuator.
It in one of the embodiments, further include screw, the sensor position opposite with the shift part offers
Threaded hole, the screw are arranged in the threaded hole of the sensor and the shift part, the sensor are removably pacified
Loaded on the shift part.
The shift fork is welded in the shift part in one of the embodiments,.
A kind of speed changer, comprising:
Case of transmission；
Synchronizer；And
Above-mentioned gearshift, the synchronizer are contained in the transmission case body, and are changed with the shift fork far from described
One end of block piece is fixedly connected.
Above-mentioned speed changer and its gearshift, the axis that actuator can drive driving member to drive shift part and shift fork along shift part
To sliding, to realize shift.Since driving member is directly sequentially connected with shift part, pass through silk of shifting gears compared to traditional
For bar driving shift nut drives the shift mode of shifting shaft, above-mentioned gearshift eliminates the trouble using shift nut,
So that gearshift has the relatively simple kind of drive.In turn, the power of actuator, which only passes through driving member and can be transmitted to, changes
On block piece, therefore transmission efficiency with higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of speed changer in the utility model preferred embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model
The understanding of disclosure is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
The utility model provides a kind of speed changer and its gearshift.
Referring to Fig. 1, speed changer 10 in the utility model preferred embodiment include case of transmission 200, synchronizer and
Gearshift 100.
Case of transmission 200 is in hollow structure, for installing and accommodating the element of speed changer 10.
Gearshift 100 is set on case of transmission 200, for realizing the shift of speed changer 10.Specifically, transmission case
Power shift gear is additionally provided with inside body 200.
Synchronizer is contained in case of transmission 200, and is fixedly connected with gearshift 100.Gearshift 100 moves
Synchronizer can be driven to engage with power shift gear, and then can realize shift.By taking the speed changer 10 only with a gear and second gear as an example, become
Fast device shell 200 is internally provided with first gear and second gear.When synchronizer is engaged with first gear, speed changer 10 switches
To a gear；When synchronizer is engaged with second gear, synchronizer switches to second gear.
Gearshift 100 in the utility model preferred embodiment includes driving assembly 110 and shift assembly 120.
Driving assembly 110 includes actuator 111 and driving member 112.Driving member 112 is movably contained in case of transmission
200.Driving member 112 and actuator 111 are sequentially connected.Specifically, actuator 111 can be contained in case of transmission 200, also may be used
It is set to outside case of transmission 200.Actuator 111 is for driving driving member 112 to move in case of transmission 200.
Shift assembly 120 is contained in case of transmission 200.Shift assembly 120 includes shift part 121 and shift fork 122.It dials
Fork 122 is fixedly connected with shift part 121.Shift part 121 is arranged in case of transmission 200, and shift part 121 and driving member 112 are remote
One end transmission connection from actuator 111.Driving member 112 is mobile, and shift part 121 and shift fork 122 can be driven along shift part 121
It slides axially.In speed changer 10, synchronizer is fixedly connected with shift fork 122 far from one end of shift part 121.
Therefore, actuator 111 drives driving member 112 mobile, and shift part 121 and shift fork 122 can be driven along shift part 121
It slides axially.In turn, synchronizer can be also driven to slide axially along shift part 121, so that the synchronizer made is operationally with one
Gear or second gear engagement are kept off, to realize shift.
Traditional speed changer 10 based on AMT platform development, including actuator 111, shift screw rod, shift nut and shift
Axis, actuator 111 are connect with shift screw rod transmission, and shift nut is fixed on shifting shaft, and with shift screw rod far from actuator
111 one end is fixedly connected.Therefore, when shift, the power of actuator 111 need to be transferred to shift from shift screw rod, shift nut
Axis.Shift fork 122 is provided on shifting shaft.Shifting shaft drives the sliding of shift fork 122, it can be achieved that shift.However, such gearshift
100 parts are more, and shift mode is complicated, and power passing time is long, lead to low efficiency of shifting gears.
In the present embodiment, shift part 121 has banned the function of shift nut and shifting shaft, directly passes with driving member 112
Dynamic connection, therefore, the power of actuator 111 can be only transmitted on shift part 121 by driving member 112 and realize shift, therefore
So that gearshift 100 has the relatively simple kind of drive, in order to improve transmission efficiency.
In addition, the gearshift 100 in the present embodiment has relatively simple shift compared to traditional gearshift 100
Structure therefore can be while reducing by 100 production cost of gearshift, moreover it is possible to reduce the volume of gearshift 100, convenient for real
The miniaturization of existing speed changer 10.
Specifically, actuator 111 can be telescopic cylinder, motor or other driving devices, specifically in the present embodiment,
Actuator 111 is motor, and motor is installed on the outer wall of case of transmission 200.Driving member 112 is screw rod, and shift part 121 is length
The nut of bar shaped.The output shaft 1112 of motor is arranged in case of transmission 200, and connect with screw rod transmission.Screw rod is far from motor
One end connect with nut thread.
Set motor for actuator 111, by the revolving speed of motor control output shaft 1112, with realize driving member 112 and
The speed that part 121 moves of shifting gears is adjustable.Moreover, motor to be installed on to the outer wall of case of transmission 200, can also effectively subtract
The inner space of small speed changer 10, is easy to implement the miniaturization of speed changer 10.Specifically, output shaft 1112 is arranged in transmission case
In body 200, output shaft 1112 can drive screw rod to slide.Shift fork 122 is fixed on nut, and screw rod sliding drives nut and shift fork
122 along nut axis slide, and then drive synchronizer engaged with first gear or second gear, with realize shift gears.In addition,
In the present embodiment, nut is in hollow structure, and inner wall is provided with internal thread structure, and screw rod is threadedly coupled with internal thread structure.It will
Nut is set as hollow structure, on the one hand can cooperate with screw rod, realizes on the other hand transmission can also mitigate the weight of nut
Amount realizes the lightweight of gearshift 100.In general, in order to reach preferable lubricant effect, in 10 shell 200 of speed changer also
Filled with lubricating oil.Oil refill is lubricated screw rod and nut in the hollow region of nut, so as to reduce screw rod with
Gearing friction resistance between nut, convenient for improving the transmission efficiency of gearshift 100.
It is connect by setting screw rod with nut thread, converts the screw of screw rod to the linear motion of nut, so that
The transmission process of gearshift 100 has preferable stability, consequently facilitating improving the transmission efficiency of gearshift 100.
Specifically, screw rod can be the screw rod of threaded screw rod, trapezoidal screw, ball screw or other forms.Specifically exist
In the present embodiment, screw rod is ball screw.
Ball screw has preferable positioning accuracy relative to the screw rod of other forms.In the process of moving, ball wire
Bar can accurately control small sliding, therefore be able to drive shift part 121, shift fork 122 and synchronizer accurately along shift part 121
Axis slide, consequently facilitating promoted shift precision and reliability.
In the present embodiment, gearshift 100 further include be installed on 200 inner wall of case of transmission drive bearing 130 and
Shift bearing 140.Drive bearing 130 is sheathed on screw rod, and shift bearing 140 is sheathed on nut.
Since drive bearing 130 and shift bearing 140 have lower coefficient of friction, pass through setting drive bearing
130 and shift bearing 140 screw rod and nut can be fixed in case of transmission 200 respectively, and then screw rod and nut can be reduced
Frictional force in operational process, to reduce the mechanical wear in screw rod and nut work, convenient for extending the use of screw rod and nut
Service life.
Specifically, shift bearing 140 is oilless bearing 130.Oilless bearing 130 relative to common bearing 130 have compared with
High bearing capacity and impact resistance has preferable for doing nut that is reciprocal and swinging in the more difficult occasion for forming oil film
Lubricating action.Therefore, by the way that oilless bearing 130 is arranged, sufficient lubrication can be carried out to nut, to reduce the abrasion of nut.And
And oilless bearing 130 is two, and is respectively arranged at the opposite both ends of nut, therefore, nut can be stably installed at speed change
In device shell 200.
In the present embodiment, gearshift 100 further includes the end ring 170 for being set to 200 inner wall of case of transmission.It passes
Dynamic bearing 130 and nut interval are arranged, and end ring 170 is sheathed on screw rod, and is held between screw rod and nut.
By the way that end ring 170 is arranged, when can prevent screw rod and nut from opposite sliding occurs, occur between nut and screw rod
Rigid contact and damage nut or screw rod.Specifically, end ring 170 should have certain elasticity, in the end face with nut
Elastic-restoring force is generated when contact, to alleviate nut to the impact force of screw rod.
It should be noted that driving member 112 and shift part 121 are not limited to above structure, 112 band of driving member need to only can be achieved
Move block piece 121 along the movement of the axis direction of shift part 121.In another embodiment, actuator 111 is motor,
Motor is installed on the outer wall of case of transmission 200, and driving member 112 is worm gear, and shift part 121 is worm screw.Worm gear is arranged and fixes
It is engaged in the excircle of the output shaft 1112 of motor, worm and wheel.
Specifically, output shaft 1112 is arranged in case of transmission 200, and output shaft 1112 can drive the worm wheel to rotate.Shift fork
122 are fixed on worm screw, and worm gear rotation drives worm screw and shift fork 122 to slide along the axis direction of worm screw, and then drives synchronizer
It is engaged with first gear or second gear, to realize shift.
By setting worm gear for driving member 112, worm screw is set by shift part 121, the circular motion of worm gear is converted
For the linear motion of worm screw, so that driving member 112 and shift part 121 have biggish transmission ratio, and structure is more compact, just
In the miniaturization for realizing gearshift 100.
In the present embodiment, gearshift 100 further includes the position sensor 150 for being fixed on shift part 121.Position sensing
Device 150 is used to detect the location parameter of shift part 121, and sends trigger signal to actuator 111.
Shift part 121 realizes shift by driving shift fork 122 and synchronizer movement.Therefore, it is set on shift part 121
Seated position sensor 150, the position that position sensor 150 can exchange block piece 121 are monitored in real time.Specifically, position sensing
Device 150 can obtain the location parameter of shift part 121, and send trigger signal to actuator 111.Actuator 111 can be according to triggering
Signal, drives the glide direction and sliding distance of driving member 112, and then shift part 121 can be driven to slide, to realize shift.
In the present embodiment, gearshift 100 further includes screw 160.Position sensor 150 is opposite with shift part 121
Position offers threaded hole.Screw 160 is arranged in the threaded hole of position sensor 150 and part 121 of shifting gears, and sensor is removable
It is installed on shift part 121 with unloading.
By the way that screw 160 is arranged, position sensor 150 is removably installed on gearshift 100, position sensing is worked as
When device 150 breaks down, position sensor 150 can be dismantled from gearshift 100 and it is replaced, to realize shift
The sustainable use of part 121.
In the present embodiment, shift fork 122 is welded in shift part 121.
In general, in gearshift 100, shift fork 122 and shift part 121 be both needed to by with larger mechanical strength metal,
Cast steel or alloy are made, with prevent shift fork 122 and shift part 121 deform and be broken in the process of running the case where.
And shift fork 122 is welded and is shifted gears on part 121, realize the fixation of shift fork 122, it can be without changing in the case where introducing fastener
It is mobile that block piece 121 can drive shift fork 122, so that the installation difficulty of shift fork 122 is reduced, convenient for reducing gearshift 100
Production cost.
Above-mentioned speed changer 10 and its gearshift 100, actuator 111 can drive driving member 112 to drive shift part 121 and dial
Fork 122 slides axially along shift part 121, to realize shift.Since driving member 112 is directly sequentially connected with shift part 121, because
This, for traditional shift mode for driving shifting shaft by shift screw rod driving shift nut, above-mentioned gearshift
100 eliminate the trouble using shift nut, so that gearshift 100 has the relatively simple kind of drive.In turn, actuator
111 power, which only passes through driving member 112, can be transmitted on shift part 121, therefore transmission efficiency with higher.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of gearshift, is set to case of transmission, which is characterized in that the gearshift includes:
Driving assembly, the driving member including actuator and being movably contained in the transmission case body, the actuator are
Motor, the driving member are screw rod, and the output shaft of the motor is arranged in the case of transmission, and connects with the screw rod transmission
It connects；
Shift assembly is contained in the transmission case body, and the shift assembly includes shift part and fixes with the shift part
The shift fork of connection, the shift part are the nut of strip, and the nut is arranged in the case of transmission, and the screw rod is separate
One end of the motor is connect with the nut thread, and the screw rod is mobile, can drive the nut and the shift fork described in
Nut slides axially.
2. gearshift according to claim 1, which is characterized in that the motor is installed on the outer of the case of transmission
Wall.
3. gearshift according to claim 1, which is characterized in that the screw rod is ball screw.
4. gearshift according to claim 1, which is characterized in that further include being installed on the case of transmission inner wall
Drive bearing and shift bearing, the drive bearing are sheathed on the screw rod, and the shift bearing holder (housing, cover) is set to the nut.
5. gearshift according to claim 4, which is characterized in that further include being set to the case of transmission inner wall
End ring, the drive bearing and the nut interval are arranged, and the end ring is sheathed on the screw rod, and is held on institute
It states between screw rod and the nut.
6. gearshift according to claim 1, which is characterized in that further include the position sensing for being fixed on the shift part
Device, the position sensor are used to detect the location parameter of the shift part, and send trigger signal to the actuator.
7. gearshift according to claim 6, which is characterized in that it further include screw, the sensor and the shift
The opposite position of part offers threaded hole, and the screw is arranged in the threaded hole of the sensor and the shift part, by institute
It states sensor and is removably installed in the shift part.
8. gearshift according to claim 1, which is characterized in that the shift fork is welded in the shift part.
9. a kind of speed changer characterized by comprising
Case of transmission；
Synchronizer；And
Gearshift as described in 1 to 8 any one of the claims, the synchronizer are contained in the case of transmission
It is interior, and be fixedly connected with the shift fork far from one end of the shift part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821406411.0U CN209309296U (en) | 2018-08-29 | 2018-08-29 | Speed changer and its gearshift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821406411.0U CN209309296U (en) | 2018-08-29 | 2018-08-29 | Speed changer and its gearshift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209309296U true CN209309296U (en) | 2019-08-27 |
Family
ID=67669735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821406411.0U Active CN209309296U (en) | 2018-08-29 | 2018-08-29 | Speed changer and its gearshift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209309296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253248A (en) * | 2018-10-18 | 2019-01-22 | 坤泰车辆系统（常州）有限公司 | Shift fork driving mechanism and automatic gear shifting system |
| CN111365419A (en) * | 2020-03-16 | 2020-07-03 | 重庆工程职业技术学院 | Double-clutch transmission system |
-
2018
- 2018-08-29 CN CN201821406411.0U patent/CN209309296U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253248A (en) * | 2018-10-18 | 2019-01-22 | 坤泰车辆系统（常州）有限公司 | Shift fork driving mechanism and automatic gear shifting system |
| CN109253248B (en) * | 2018-10-18 | 2023-09-01 | 坤泰车辆系统（常州）有限公司 | Shifting fork driving mechanism and automatic gear shifting system |
| CN111365419A (en) * | 2020-03-16 | 2020-07-03 | 重庆工程职业技术学院 | Double-clutch transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209309296U (en) | Speed changer and its gearshift | |
| CN204420084U (en) | A kind of motor direct-drive formula gear-shifting actuating mechanism | |
| CN107461580A (en) | High-precision and high-load linear displacement platform | |
| US3592070A (en) | Linear actuator | |
| JP2018017317A (en) | Robot, gear device, and manufacturing method for the same | |
| JP6848669B2 (en) | Robots and gears | |
| CN108731952B (en) | High-speed railway train brake inertia test stand | |
| CN109798357A (en) | A kind of gear shifting actuating mechanism for two gear gearboxes | |
| CN208331149U (en) | A kind of half inner supporting structure marine gearbox of high-speed drive | |
| CN209398831U (en) | Speed changer and its gearshift | |
| JP2018053942A (en) | Robot and gear device | |
| CN116499744A (en) | Rolling bearing life tester for diversified load tests | |
| CN105445092A (en) | Continuous and accurate variable loading device | |
| CN209855878U (en) | Liquid level measurement feedback device and system | |
| CN211568441U (en) | Lifting transmission device | |
| CN208634294U (en) | Numerically-controlled machine tool and its gear-box power-shift gear box | |
| CN205192845U (en) | Device with continuous accurate loading variable load | |
| CN105526340A (en) | Dynamic-pressure lubricating swash plate and bevel gear continuously variable transmission | |
| CN109340362A (en) | Speed changer and its gearshift | |
| CN204755883U (en) | General type electric motor car AMT gearshift | |
| CN112108338B (en) | Device is applyed with hand-held type lubricating grease to part installation | |
| CN216078222U (en) | Speed reducing motor | |
| CN208445418U (en) | Electric pushrod | |
| CN221401616U (en) | Gear shifting actuator and vehicle | |
| CN214823916U (en) | Manual-automatic integrated speed-changing driving device for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |