CN107514457A - A kind of ball screw type gearshift used for electric vehicle - Google Patents
A kind of ball screw type gearshift used for electric vehicle Download PDFInfo
- Publication number
- CN107514457A CN107514457A CN201710894287.0A CN201710894287A CN107514457A CN 107514457 A CN107514457 A CN 107514457A CN 201710894287 A CN201710894287 A CN 201710894287A CN 107514457 A CN107514457 A CN 107514457A
- Authority
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- China
- Prior art keywords
- ball
- screw
- shift fork
- sensor
- motor reducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- 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
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- 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
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- 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
- F16H63/40—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 comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
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- 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
- F16H2061/2884—Screw-nut devices
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- 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
- F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
- F16H2063/3063—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force using screw devices
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- 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
- F16H63/40—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 comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
- F16H2063/423—Range indicators for automatic transmissions, e.g. showing selected range or mode
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The present invention relates to a kind of ball screw type gearshift used for electric vehicle, it is characterized in that mechanism form is along line both sides symmetrical structure centered on ball-screw, ball-screw both ends are fixed by bearing, ball-screw is both ends stationary structure, end in bearing position one end of ball-screw, the other end of ball-screw stretches out the output axis connection with motor reducer, ball screw assembly, is fastened as a whole with shift fork, the central axis of motor reducer and ball screw assembly, is on the same axis, ball nut suit is arranged on ball-screw, sensor block is set on the body that shift fork is connected with ball nut, sensor block and block selecting sensor are in parallel construction.The invention has the advantages that switching speed is fast, efficiency high, it can in real time be monitored with high precision and select shift pattern, allowed electric control system controls motor to act accordingly, fully meet gearshift demand, any position can be pin-pointed to according to the detection of linear displacement transducer come accurate start-stop.
Description
Technical field
The present invention relates to gear-selecting-shifting mechanism industry field, specifically a kind of ball screw type gearshift machine used for electric vehicle
Structure.
Background technology
Under global energy shortage, the overall background for advocating clean energy resource, new-energy automobile is the certainty of China Automobile Industry
Selection.The background risen from new-energy automobile, propose the challenge of China's new-energy automobile development and promote China's new energy
Automobile summit related measure, the development to China's new-energy automobile are significant.Electric automobile --- following really energy-conservation
Environmentally friendly vehicle solution, its development prospect are that everybody has mesh common recognition.
Due to the development of electrical technology, the gearbox of electric automobile becomes relatively easy, from two grades (low speed and high speeds)
Gearbox just fully meets its operation demand.
AMT (Automated Mechanical Transmission) refers to electrical control automatic manual transmission case, and it is integrated
The mechanical-electrical-hydraulic integration automatic transmission of both AT (automatic) and MT (manual) advantage；AMT both has hydraulic automatic speed variator
The advantages of fluid drive, remain again the gear-driven efficiency high of former manual transmission, cost it is low, it is simple in construction, easily manufacture
Strong point.It has integrated the two advantage, is current very advanced mechanical-electrical-hydraulic integration automatic transmission.The advanced electronics skills of AMT
Art transforms traditional manual transmission, not only remains the strong point of the high and low cost of original gear transmission efficiency, and be also equipped with
Hydraulic automatic speed variator uses all advantages caused by fluid drive.
Current AMT gear shift mechanisms generally realize that the power that shifting acts passes by worm couple or gear pair
Pass, worm couple has the advantages that stable working, noise are small, gearratio is big, but its also efficient low, the shortcomings of easily generating heat；
Gear auxiliary driving has the advantages that efficiency high, transmission power are big, but noise and vibration are had a great influence by Gear Processing precision.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art, there is provided a kind of ball wire used for electric vehicle
Thick stick formula gearshift, the technical solution adopted for the present invention to solve the technical problems are：The structure of the present invention includes decelerating through motor
The ball screw assembly, of machine, housing, bearing, ball-screw and ball nut composition, the gearshift of block selecting sensor and sensor block composition
Sensor, shift fork, fixed cover, it is characterised in that mechanism form is along line both sides symmetrical structure, ball wire centered on ball-screw
Thick stick both ends are fixed by bearing, one end of ball-screw and the axis connection of motor reducer, and the other end is arranged on housing, are two
Stationary structure is held, one end of ball-screw is ended in bearing position, and the other end of ball-screw stretches out defeated with motor reducer
Go out axis connection.
Described ball screw assembly, is fastened as a whole with shift fork, and the central axis of motor reducer and ball screw assembly, is same
On one axis, ball nut suit is arranged on ball-screw, and shift fork is slidably mounted on ball nut 42, shift fork 6 and ball
Sensor block is set on the body of nut connection, and block selecting sensor is arranged on the upper plane of housing, sensor block and block selecting sensor
In parallel construction, and keep certain distance.
Described sensor block senses with gear shift sensing device, and shift fork is done along ball-screw direction in the presence of motor reducer
Linear motion, sensor sensing be shift fork linear motion, entered by the cooperation shift fork of ball-screw and ball nut
Row gear shift.
Bearing, ball screw assembly, sensor block, shift fork, fixed cover are provided with described housing.
Described fixed cover links together with shift fork to move along a straight line with ball nut, described block selecting sensor sensing
The linear motion of shift fork, gear shift sensing device sense the linear motion of shift fork, motor reducer driving ball-screw secondary motion, ball
Lead screw pair is connected with shift fork, and sensor senses the linear motion of ball screw assembly, its stable transmission, and motor reducer outflow is moved
Power can efficiently drive to shift fork and carry out gear shift in time.
In the present embodiment, described gear shift sensor is linear displacement transducer, is sensed in real time using rectilinear transducer
The position of selector fork, make TCU (automatic gear-box control unit) that corresponding control can be made in time.
The invention has the advantages that this gear-selecting-shifting mechanism carries out gear shift using ball screw assembly, switching speed is fast, efficiency
Height, shift fork can be completed from neutral position to target gear positions in 0.08 second, were employed gear shift sensing device auxiliary and selected gear shift,
It can in real time be monitored with high precision and select shift pattern, allow electric control system controls motor to act accordingly, its horizontal gear selecting
Operation precision is can be controlled in +/- 0.12mm, fully meets gearshift demand, can be according to the detection of linear displacement transducer come smart
True start-stop, it is pin-pointed to any position.
Brief description of the drawings
Fig. 1：Structural representation of the embodiment of the present invention.
In figure：Motor reducer 1, housing 2, bearing 3, ball screw assembly, 4, gear shift sensing device 5, shift fork 6, fixed cover 7, rolling
Ballscrew 41, ball nut 42, block selecting sensor 51, sensor block 52.
Embodiment
It is described with reference to make the present invention detailed description in detail below.As shown in drawings, structure of the invention includes
The ball screw assembly, 4 that motor reducer 1, housing 2, bearing 3, ball-screw 41 and ball nut 42 form, block selecting sensor 51
Gear shift sensing device 5, shift fork 6, the fixed cover 7 formed with sensor block 52, it is characterised in that mechanism form is to be along ball-screw 41
Center line both sides symmetrical structure, the both ends of ball-screw 41 are fixed by bearing 3, one end and the motor reducer 1 of ball-screw 41
Axis connection, the other end is arranged on housing 2, be both ends stationary structure, and one end of ball-screw 41 is ended in bearing position, is rolled
The other end of ballscrew 41 stretches out the output axis connection with motor reducer 1.
Described ball screw assembly, 4 is fastened as a whole with shift fork 6, the central axis of motor reducer 1 and ball screw assembly, 4
On the same axis, the suit of ball nut 42 is arranged on ball-screw 41, and shift fork 6 is slidably mounted on ball nut 42, is dialled
Sensor block 52, sensor block 52 and the supporting realization of sensor and sensor are set on the body that fork 6 is connected with ball nut 42
Coordinate, control the position of shift fork, block selecting sensor 51 is arranged on the upper plane of housing 2, and sensor block 52 is in block selecting sensor 51
Parallel construction, and keep certain distance.
Described sensor block 52 senses with gear shift sensing device 5, and gear shift sensor 5 can feed back the position of shift fork 6 in time, make to change
Shelves fast accurate, shift fork 6 moves along a straight line along the direction of ball-screw 41 in the presence of motor reducer 1, sensor sensing
It is the linear motion of shift fork 6, gear shift, switching speed is carried out by the cooperation shift fork 6 of ball-screw 41 and ball nut 42
It hurry up, efficiency high.
Bearing 3, ball screw assembly, 4, sensor block 52, shift fork 6, fixed cover 7 are provided with described housing 2.
Described fixed cover 7 links together with shift fork 6 to move along a straight line with ball nut 42, described block selecting sensor
The linear motion of 51 sensing shift forks 6, gear shift sensing device 5 sense the linear motion of shift fork 6, and motor reducer 1 drives ball-screw
Pair 4 is moved, and ball screw assembly, 4 is connected with shift fork 6, and sensor senses the linear motion of ball screw assembly, 4, its stable transmission, electricity
The power that machine reductor 1 is spread out of can efficiently drive to shift fork 6 and carry out gear shift in time.
In the present embodiment, described gear shift sensor 5 is linear displacement transducer, is sensed in real time using rectilinear transducer
The position of selector fork, make TCU (automatic gear-box control unit) that corresponding control can be made in time.
The described top of housing 2 is further opened with passage, is provided with breather plug on the passage, can make transmission internal
Pressure control is in tolerance interval.
Operation principle：When the present embodiment is applied to automatic gear-box, gear shifting motor reductor 1 is by TCU (automatic gear-box controls
Unit processed) to power and control, driving ball-screw 41 is rotated so as to drive ball nut 42 for linear motion, the band of ball nut 42
The dynamic carry out gear shift for linear motion of shift fork 6, shift fork 6 sense gear shift sensor 5 by sensor block 52, and gear shift sensor 5 is by straight line
Change in displacement feed back to TCU (automatic gear-box control unit) confirm gear, gear shift in place when at once power off, complete gear shift.
Compared to prior art, this gear-selecting-shifting mechanism carries out gear shift using ball screw assembly, and switching speed is fast, efficiency high,
Described shift fork 6 can be completed from neutral position to target gear positions in 0.08 second, employ the auxiliary choosing of gear shift sensing device
Gear shift, it can in real time be monitored with high precision and select shift pattern, allow electric control system controls motor to act accordingly, its transverse direction
Gear selecting operation precision is can be controlled in +/- 0.12mm, fully meets gearshift demand, can be according to the detection of linear displacement transducer
Carry out accurate start-stop, be pin-pointed to any position.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and scope is defined, on the premise of design concept of the present invention is not departed from, ordinary skill technical staff is to this in this area
The all variations and modifications that the technical scheme of invention is made, all should fall into protection scope of the present invention, and the present invention is claimed
Technology contents, all record in detail in the claims.
Claims (3)
1. a kind of ball screw type gearshift used for electric vehicle, including motor reducer (1), housing (2), bearing (3), ball
The ball screw assembly, (4) of leading screw (41) and ball nut (42) composition, block selecting sensor (51) and sensor block (52) composition change
Keep off sensor (5), shift fork (6), fixed cover (7), it is characterised in that mechanism form is along line both sides centered on ball-screw (41)
Symmetrical structure, ball-screw (41) both ends are fixed by bearing (3), one end and the motor reducer (1) of ball-screw (41)
Axis connection, the other end are arranged on housing (2), are both ends stationary structure, and one end of ball-screw (41) is ended in bearing position,
The other end of ball-screw (41) stretches out the output axis connection with motor reducer (1), and ball screw assembly, (4) is tight with shift fork (6)
It is solidified as a whole, on the same axis, ball nut (42) is set with the central axis of motor reducer (1) and ball screw assembly, (4)
It is arranged on ball-screw (41).
2. a kind of ball screw type gearshift used for electric vehicle according to claim 1, it is characterised in that shift fork (6) is pacified
On ball nut (42), sensor block (52), sensor block are set on the body that shift fork (6) is connected with ball nut (42)
(52) sensing with gear shift sensing device (5), gear shift sensor (5) can feed back the position of shift fork (6) in time, make gear shift fast accurate,
Shift fork (6) moves along a straight line along ball-screw (41) direction in the presence of motor reducer (1), gear shift sensing device (5) sensing
Be shift fork (6) linear motion, changed by the cooperation shift fork (6) of ball-screw (41) and ball nut (42)
Shelves.
3. a kind of ball screw type gearshift used for electric vehicle according to claim 1, it is characterised in that described changes
Shelves sensor (5) is linear displacement transducer, and sensor block (52) and block selecting sensor (51) are in parallel construction, and are kept at a distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710894287.0A CN107514457A (en) | 2017-09-28 | 2017-09-28 | A kind of ball screw type gearshift used for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710894287.0A CN107514457A (en) | 2017-09-28 | 2017-09-28 | A kind of ball screw type gearshift used for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107514457A true CN107514457A (en) | 2017-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710894287.0A Pending CN107514457A (en) | 2017-09-28 | 2017-09-28 | A kind of ball screw type gearshift used for electric vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN107514457A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895157A (en) * | 2018-06-12 | 2018-11-27 | 东南大学 | A kind of driverless tractor self shifter fexible unit |
| CN111322395A (en) * | 2020-03-03 | 2020-06-23 | 凯博易控车辆科技(苏州)股份有限公司 | Finished automobile gear shifting control system and control method thereof |
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|---|---|---|---|---|
| US20020056601A1 (en) * | 2000-11-15 | 2002-05-16 | Akira Inoue | Vehicle clutch driving device and gear shifting device of vehicle transmission |
| US20050215375A1 (en) * | 2004-03-26 | 2005-09-29 | Denso Corporation | Rotary actuator |
| CN102966733A (en) * | 2012-11-05 | 2013-03-13 | 重庆青山工业有限责任公司 | Interlocking system of gear selection and shifting mechanisms of automatic and manual transmission (AMT) |
| CN204420084U (en) * | 2014-12-23 | 2015-06-24 | 于军 | A kind of motor direct-drive formula gear-shifting actuating mechanism |
| CN204755883U (en) * | 2015-05-28 | 2015-11-11 | 浙江联宜电机股份有限公司 | General type electric motor car AMT gearshift |
| CN105240520A (en) * | 2015-09-23 | 2016-01-13 | 杭州安驱汽车零部件有限公司 | Gear shifting system for multi-speed electric automobile transmission |
| CN106704582A (en) * | 2015-07-27 | 2017-05-24 | 湖北汽车工业学院 | Automatic operation mechanism of two-gear mechanical transmission for electric vehicle |
| CN206290686U (en) * | 2016-12-01 | 2017-06-30 | 韶关市焬控传动科技有限公司 | A kind of Ball screw type gear shift mechanism |
| CN207621330U (en) * | 2017-09-28 | 2018-07-17 | 山东绿图动力科技股份有限公司 | A kind of ball screw type gearshift for electric vehicle |
-
2017
- 2017-09-28 CN CN201710894287.0A patent/CN107514457A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020056601A1 (en) * | 2000-11-15 | 2002-05-16 | Akira Inoue | Vehicle clutch driving device and gear shifting device of vehicle transmission |
| US20050215375A1 (en) * | 2004-03-26 | 2005-09-29 | Denso Corporation | Rotary actuator |
| CN102966733A (en) * | 2012-11-05 | 2013-03-13 | 重庆青山工业有限责任公司 | Interlocking system of gear selection and shifting mechanisms of automatic and manual transmission (AMT) |
| CN204420084U (en) * | 2014-12-23 | 2015-06-24 | 于军 | A kind of motor direct-drive formula gear-shifting actuating mechanism |
| CN204755883U (en) * | 2015-05-28 | 2015-11-11 | 浙江联宜电机股份有限公司 | General type electric motor car AMT gearshift |
| CN106704582A (en) * | 2015-07-27 | 2017-05-24 | 湖北汽车工业学院 | Automatic operation mechanism of two-gear mechanical transmission for electric vehicle |
| CN105240520A (en) * | 2015-09-23 | 2016-01-13 | 杭州安驱汽车零部件有限公司 | Gear shifting system for multi-speed electric automobile transmission |
| CN206290686U (en) * | 2016-12-01 | 2017-06-30 | 韶关市焬控传动科技有限公司 | A kind of Ball screw type gear shift mechanism |
| CN207621330U (en) * | 2017-09-28 | 2018-07-17 | 山东绿图动力科技股份有限公司 | A kind of ball screw type gearshift for electric vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895157A (en) * | 2018-06-12 | 2018-11-27 | 东南大学 | A kind of driverless tractor self shifter fexible unit |
| CN111322395A (en) * | 2020-03-03 | 2020-06-23 | 凯博易控车辆科技(苏州)股份有限公司 | Finished automobile gear shifting control system and control method thereof |
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Application publication date: 20171226 |
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