CN108644371A - A kind of parking gear shifting mechanism - Google Patents
A kind of parking gear shifting mechanism Download PDFInfo
- Publication number
- CN108644371A CN108644371A CN201810343893.8A CN201810343893A CN108644371A CN 108644371 A CN108644371 A CN 108644371A CN 201810343893 A CN201810343893 A CN 201810343893A CN 108644371 A CN108644371 A CN 108644371A
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- China
- Prior art keywords
- parking
- shift fork
- shift
- gear
- push rod
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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
- 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
- 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
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
- F16H63/3466—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire using electric motors
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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
- F16H61/30—Hydraulic or pneumatic motors or related fluid 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
- 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
- F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
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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
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
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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
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
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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
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3483—Parking lock mechanisms or brakes in the transmission with hydraulic actuating means
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/026—Details or special features of the selector casing or lever support
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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
- F16H2061/326—Actuators for range selection, i.e. actuators for controlling the range selector or the manual range valve in the transmission
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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
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H2063/3093—Final output elements, i.e. the final elements to establish gear ratio, e.g. dog clutches or other means establishing coupling to shaft
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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
- F16H63/38—Detents
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a kind of parking gear shifting mechanisms, including drive module, shift module and parking module；The drive module includes ball-screw, driving motor and shift fork, and the driving motor and leading screw axis connection, the shift fork are connect with nut；The shift module includes Unilateral synchronizer, and the Unilateral synchronizer is connect with the shift fork, and gear can be shifted gears and be moved back to the Unilateral synchronizer with the movement of the shift fork；The parking module includes parking push rod assembly, parking arm and parking gear, and the parking push rod assembly is connect with the shift fork, and is set to the non-shift side of the Unilateral synchronizer；The parking push rod assembly can be moved with the shift fork so that the parking arm is engaged with the parking gear realizes parking.The present invention utilizes Unilateral synchronizer, and shift and two completely self-contained functions of parking are combined, and has production development at low cost, the compacter advantage of structure.
Description
Technical field
The present invention relates to automotive field more particularly to a kind of parking gear shifting mechanisms.
Background technology
Currently, engine and the power car of motor mixing occupy the significant proportion of new-energy automobile, and mix motor-car
Powershift relies primarily on multimode retarder.Therefore, multimode retarder must also other than needing the gear set for slowing down torque
Parking function and power ON/OFF functions must be equipped with.
Either traditional fuel-engined vehicle also has new energy to mix electrical automobile, is required for configuring a set of special transmission chain progress
Parking.Therefore, it is necessary to develop many parts, including parking motor controller, parking gear shifting axis, parking angular transducer,
Park pawl, parking push rod, parking cam, parking arm, parking gear etc..In addition, power ON/OFF functions be then by from
Clutch is realized：Clutch is stepped on, power cut carries out the operation such as shift gears；Clutch is unclamped, power exports again.Both functions need
Individual Liang Tao mechanisms, which are arranged, could realize that the parts of parking component are more, and clutch cost itself is higher, causes more
The development cost of mould retarder and the problem of production cost increased and space layout difficulty is big.
Application No. is the Chinese patents of CN201410580172.0 to disclose a kind of shift of transmission halting mechanism, the speed change
Device shift halting mechanism includes parking part and shift part, and the shift part and parking part are established by rolling bar assembly and connected
It connects；The axle assembly that manually controls of shift part drives positioning plate and the rotation of finger-type driven structure, according to rotational angle difference, lock-bit
Structure is stuck in tooth socket, and finger-type driven structure drives hand-operated valve straight reciprocating motion in hydraulic valve, to open and close
P, R, N, D shelves oil circuit in hydraulic valve.It improves parking part and shift part, solves existing halting mechanism
When carrying out shift parking, control oil channel structures are complicated, and a component is easy to interfere, the ineffective problem of parking gear shifting.But
It is that mechanism composition is still more complicated, also shift and two kinds of functions of parking is not contacted.
Invention content
In order to solve the above technical problem, the present invention provides a kind of parking gear shifting mechanism, parking gear shifting mechanism packets
Include drive module, shift module and parking module；
The drive module includes ball-screw, driving motor and shift fork, and the ball-screw includes lead screw shaft and nut；
The driving motor and the leading screw axis connection, the shift fork are connect with the nut, and the shift fork can be with the nut
It is moved along the axis direction of the lead screw shaft；
The shift module includes Unilateral synchronizer；The Unilateral synchronizer is connect with the shift fork, the one-side synchronous
Gear can be shifted gears and be moved back to device with the movement of the shift fork；
The parking module includes parking push rod assembly, parking arm and parking gear；The parking push rod assembly with it is described
Shift fork connects, and is set to the non-shift side of the Unilateral synchronizer；The parking push rod assembly can be moved with the shift fork
It is dynamic so that the parking arm is engaged with the parking gear realizes parking.
Further, the parking push rod assembly includes parking push rod, parking cam and spring；
The parking cam is connect with one end of the parking push rod, and the other end and the shift fork of the parking push rod connect
It connects, the spring is set on the parking push rod, and the spring is used to provide the pretightning force of the parking cam.
Further, the parking cam is the cylinder equipped with tapered end face, and the parking arm is equipped with groove；It is described
Parking cam is gradually bonded with the groove with the movement of shift fork；When the parking cam is bonded completely with the groove,
The parking arm is engaged with the parking gear.
Further, the parking gear is fixedly connected with the output shaft of speed changer.
Further, the Unilateral synchronizer includes tooth hub and tooth set, and the output shaft fixation of the tooth hub and speed changer connects
It connects, the tooth set is connect with the shift fork, and the tooth set can move close under the action of the shift fork along the tooth hub
Either shift is realized far from shifting gear or move back gear.
Further, the tooth is put on equipped with annular groove, and one end of the shift fork is set in the annular groove.
Further, the output shaft of shifting gear and speed changer is connected by needle bearing.
Further, the drive module further includes controller, and the controller is electrically connected with the driving motor, described
Controller and the driving motor are fixedly installed on case of transmission；The both ends of the ball-screw are fixed by bearing respectively
In in speed changer.
Further, the drive module further includes shift fork position detection unit, and the shift fork position detection unit includes
Magnetic block and sensor, the magnetic block are fixedly installed on the shift fork, and the sensor is dialled by detecting magnetic signal determination
Vent is set.
Further, the shift halting mechanism further includes locking module, and the locking module includes locking wire casing and determines
Position seat, the locking wire casing are fixedly connected with the nut, and the locking wire casing is equipped at least one limiting slot；The positioning
One end of seat is equipped with protrusion, and the protrusion can be stuck in the limiting slot.
Further, shift slot, scope neutral gear groove and parking slot are equipped on the locking wire casing successively；When mechanism is in neutral gear shape
When state, the protrusion is stuck in the scope neutral gear groove；When mechanism parking is completed, the protrusion is stuck in the parking slot；Work as machine
When structure shift is completed, the protrusion is stuck in the shift slot.That is, the shifting that the locking module passes through nut described in locking
It is dynamic so that mechanism is locked in the state of neutral gear, parking or shift.
Parking gear shifting mechanism of the present invention can realize that neutral gear, shift and parking function, principle difference are as follows：
(1) neutral gear principle：When driving motor does not work, the tooth set of Unilateral synchronizer is not contacted with shifting gear, parking
Also not with parking arm contact, positioning seat protrusion is connected in scope neutral gear groove cam；At this point, the output shaft unpowered output of speed changer,
Parking arm is not also engaged with parking gear, and mechanism is in neutral position state；
(2) shift principle：When driving motor rotates forward, the convert rotational motion of lead screw shaft is the straight of nut by ball-screw
Line moves, and is shifted gears to shifting gear movement by shift fork sliding tooth set；Also, after driving motor inverts, shift fork
Can sliding tooth set be detached from shifting gear realization move back gear；
(3) parking principle：When driving motor inverts, shift fork driving push rod assembly is moved to parking arm, and parking cam makes
It obtains parking arm gradually to engage with parking gear, realizes parking；Also, after driving motor rotates forward, parking arm progressively disengages parking
Gear completes parking unlock.
In addition, the parking push rod in the present invention can also be hinged on the nut of ball-screw other than it can be connect with shift fork
On.
Ball-screw can slow down torque, and rotary motion is changed into linear motion, to shift fork drive it is same
It walks device and realizes that parking is realized in shift and parking module.Device or mechanism therefore, it is possible to generate linear motion turn in satisfaction
Under conditions of speed and torque, the alternative solution of ball-screw can be become.For example, with rack-and-pinion add turbine and worm structure or
Person's rack-and-pinion adds gear auxiliary structure to substitute ball-screw；Or the device of linear movement output, such as air pressure is directly used to drive
Dynamic, hydraulic-driven or flexible axle of shifting gears driving etc..
Also, since there is ball-screw self-locking property, the locking module in the present invention can also remove.But
For other alternative solutions of not self-locking property, locking module should retain.
The present invention combines shift and two completely self-contained functions of parking by using Unilateral synchronizer.It is single
The shift side of side synchronizer can replace clutch to realize power ON/OFF functions, and the non-shift side of Unilateral synchronizer can be real
Existing parking function.It has the advantages that：
(1) clutch expensive, that size is bigger than normal is replaced using the Unilateral synchronizer cheap, size is small, to significantly
Reduce the production cost of retarder；
(2) parking module is integrated in the non-shift side of Unilateral synchronizer, parking motor is eliminated, park pawl, determines
The parts such as position seat, parking rocking arm and angular transducer, enormously simplify parking structure, reduce amount of parts, reduce
R＆D costs simplify space layout difficulty, also so that FCL structure is compacter.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology and advantage, below will be to implementing
Example or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, the accompanying drawings in the following description is only
Only it is some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Structural schematic diagram when Fig. 1 is parking gear shifting mechanism neutral position state of the present invention；
Structural schematic diagram when Fig. 2 is parking gear shifting mechanism gearshift condition of the present invention；
Structural schematic diagram when Fig. 3 is parking gear shifting mechanism parked state of the present invention.
Wherein, attached drawing correspondence markings are in figure：1- driving motors；2- controllers；3- locking modules；301- locking wire casings；
302- positioning seats；4- shifting gears；5- shift fork position detection units；501- magnetic blocks；502- sensors；6- ball-screws；
601- lead screw shaft；602- nuts；7- shift forks；8- Unilateral synchronizers；801- tooth hubs；802- tooth sets；9- parking push rod assemblies；901-
Parking push rod；902- parking cams；903- springs；10- parking arms；11- parking gears；12- output shafts.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.Obviously, described embodiment is only one embodiment of the invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all under the premise of not making creative work
Other embodiment shall fall within the protection scope of the present invention.
" one embodiment " or " embodiment " referred to herein refers to that may be included at least one realization method of the present invention
A particular feature, structure, or characteristic.In the description of the present invention, it is to be understood that, term "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, do not indicate or imply the indicated device or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for retouching
Purpose is stated, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.By
This defines " first ", the feature of " second " can be expressed or what is implied includes one or more this feature.Moreover,
Term " first ", " second " etc. are for distinguishing similar object, without being used to describe specific sequence or precedence.It answers
The data that the understanding uses in this way can be interchanged in the appropriate case, so that the embodiment of the present invention described herein can be to remove
Sequence other than those of illustrating or describe herein is implemented.
Embodiment：
As shown in Figs. 1-3, the present invention provides a kind of parking gear shifting mechanism, the parking gear shifting mechanism includes driving mould
Block, shift module and parking module；
The drive module includes ball-screw 6, driving motor 1 and shift fork 7, and the ball-screw 6 includes lead screw shaft 601
With nut 602；The driving motor 1 is connect with the lead screw shaft 601, and the shift fork 7 is connect with the nut 602, described group
Fork 7 can be moved left and right with the nut 602 along the axis direction of the lead screw shaft 601；
The shift module includes Unilateral synchronizer 8；The Unilateral synchronizer 8 is connect with the shift fork 7, described unilateral same
Gear can be shifted gears and be moved back to step device 8 with the movement of the shift fork 7；
The parking module includes parking push rod assembly 9, parking arm 10 and parking gear 11；The parking push rod assembly 9
It is connect with the shift fork 7, and is set to 8 non-shift side of the Unilateral synchronizer；The parking push rod assembly 9 can be with institute
State the movement of shift fork 7 so that the parking arm 10 is engaged with the parking gear 11 realizes parking.
Further, the parking push rod assembly 9 includes parking push rod 901, parking cam 902 and spring 903；
The parking cam 902 is connect with one end of the parking push rod 901, the other end of the parking push rod 901 with
The shift fork 7 connects, and the spring 903 is set on the parking push rod 901, and the spring 903 is for providing the parking
The pretightning force of cam 902.
Further, the parking cam 902 is the cylinder equipped with tapered end face, and the parking arm 10 is equipped with recessed
Slot；The parking cam 902 is gradually bonded with the groove with the movement of shift fork 7；When the parking cam 902 with it is described recessed
When slot is bonded completely, the parking arm 10 is engaged with the parking gear 11.
Further, the parking gear 11 is fixedly connected with the output shaft 12 of speed changer.
Further, the Unilateral synchronizer 8 includes tooth hub 801 and tooth set 802, and the tooth hub 801 is defeated with speed changer
Shaft 12 is fixedly connected, and tooth set 802 is connect with the shift fork 7, the tooth cover 802 can under the action of the shift fork 7,
It is moved close to along the tooth hub 801 and either realizes shift far from shifting gear 4 or move back gear.
Further, the tooth set 802 is equipped with annular groove, and one end of the shift fork 7 is set in the annular groove.
Further, shifting gear 4 is connect with the output shaft 12 of speed changer by needle bearing.
Further, the drive module further includes controller 2, and the controller 2 is electrically connected with the driving motor 1,
The controller 2 and the driving motor 1 are fixedly installed on case of transmission；The both ends of the ball-screw 6 pass through respectively
Bearing is fixed in speed changer.
Further, the drive module further includes shift fork position detection unit 5, and the shift fork position detection unit 5 is wrapped
Magnetic block 501 and sensor 502 are included, the magnetic block 501 is fixedly installed on the shift fork 7, and the sensor 502 passes through inspection
It surveys magnetic signal and determines 7 position of shift fork.
Further, the shift halting mechanism further includes locking module 3, and the locking module 3 includes locking wire casing 301
With positioning seat 302, the locking wire casing 301 is fixedly connected with the nut 602, and the locking wire casing 301 is equipped at least one
A limiting slot；One end of the positioning seat 302 is equipped with protrusion, and the protrusion can be stuck in the limiting slot.
Further, shift slot, scope neutral gear groove and parking slot are equipped on the locking wire casing 301 successively；When mechanism is in sky
When gear state, the protrusion is stuck in the scope neutral gear groove；When mechanism parking is completed, the protrusion is stuck in the parking slot；
When mechanism, which shifts gears, to be completed, the protrusion is stuck in the shift slot.That is, the locking module 3 passes through nut described in locking
602 movement so that mechanism is locked in the state of neutral gear, parking or shift.
Parking gear shifting mechanism of the present invention can realize that neutral gear, shift and parking function, principle difference are as follows：
As shown in Figure 1, neutral gear principle is：When driving motor 1 does not work, the tooth set 802 and gear teeth of Unilateral synchronizer 8
Wheel 4 does not contact, and parking cam is not also contacted with parking arm 10, and 302 protrusion of positioning seat is connected in scope neutral gear groove (position slot in i.e.)；This
When, 12 unpowered output of output shaft of speed changer, parking arm 10 is not also engaged with parking gear 11, and mechanism is in neutral position state.
As shown in Fig. 2, shift principle is：When driving motor 1 rotates forward, ball-screw 6 is by the rotary motion of lead screw shaft 601
It is converted into the linear motion of nut 602, and is moved right by 7 sliding tooth of shift fork set 802, progress is engaged with shifting gear 4
Shift；Also, when driving motor 1 inverts, shift fork 7 can sliding tooth set 802 be moved to the left, it is real to be detached from shifting gear 4
Now move back gear.
As shown in figure 3, parking principle is：When driving motor 1 inverts, shift fork 7 drives parking push rod assembly 9 to moving to left
Dynamic, parking cam 902 makes parking arm 10 gradually be engaged with parking gear 11, realizes parking；Also, when driving motor 1 rotates forward
When, parking push rod assembly 9 moves right, and parking arm 10 progressively disengages parking gear 11, completes parking unlock.
In addition, since there is ball-screw self-locking performance, the locking module in the present embodiment can increase mechanism in a certain shape
The reliability of locking, is not necessary under state.
In addition, the parking push rod 901 in the present invention can also be hinged on ball-screw 6 other than it can be connect with shift fork 7
On nut 602, realization moves left and right.
Embodiment：
In conjunction with shown in Fig. 1-3, the present invention provides a kind of parking gear shifting mechanism, the parking gear shifting mechanism includes driving mould
Block, shift module and parking module；
The drive module includes hydraulic pressure unit and shift fork 7, and the hydraulic pressure unit includes hydraulic cylinder, the shift fork 7 and institute
The piston rod connection of hydraulic cylinder is stated, the shift fork 7 can be moved with the piston rod along the cylinder barrel of the hydraulic cylinder；
The shift module includes Unilateral synchronizer 8；The Unilateral synchronizer 8 is connect with the shift fork 7, described unilateral same
Gear can be shifted gears and be moved back to step device 8 with the movement of the shift fork 7；
The parking module includes parking push rod assembly 9, parking arm 10 and parking gear 11；The parking push rod assembly 9
It is connect with the shift fork 7, and is set to 8 non-shift side of the Unilateral synchronizer；The parking push rod assembly 9 can be with institute
State the movement of shift fork 7 so that the parking arm 10 is engaged with the parking gear 11 realizes parking.
Further, the parking push rod assembly 9 includes parking push rod 901, parking cam 902 and spring 903；
The parking cam 902 is connect with one end of the parking push rod 901, the other end of the parking push rod 901 with
The shift fork 7 connects, and the spring 903 is set on the parking push rod 901, and the spring 903 is for providing the parking
The pretightning force of cam 902.
Further, the parking cam 902 is the cylinder equipped with tapered end face, and the parking arm 10 is equipped with recessed
Slot；The parking cam 902 is gradually bonded with the groove with the movement of shift fork 7；When the parking cam 902 with it is described recessed
When slot is bonded completely, the parking arm 10 is engaged with the parking gear 11.
Further, the parking gear 11 is fixedly connected with the output shaft 12 of speed changer.
Further, the Unilateral synchronizer 8 includes tooth hub 801 and tooth set 802, and the tooth hub 801 is defeated with speed changer
Shaft 12 is fixedly connected, and tooth set 802 is connect with the shift fork 7, the tooth cover 802 can under the action of the shift fork 7,
It is moved close to along the tooth hub 801 and either realizes shift far from shifting gear 4 or move back gear.
Further, the tooth set 802 is equipped with annular groove, and one end of the shift fork 7 is set in the annular groove.
Further, shifting gear 4 is connect with the output shaft 12 of speed changer by needle bearing.
Further, the hydraulic pressure unit further includes solenoid valve, and the solenoid valve is connect by oil pipe with the hydraulic cylinder,
Movement for controlling the hydraulic cylinder piston rod.
Further, the drive module further includes controller, and the controller is electrically connected with the solenoid valve, the control
Device processed and the solenoid valve are fixedly installed on case of transmission；The cylinder barrel of the hydraulic cylinder is fixed in speed changer.
Further, the drive module further includes shift fork position detection unit 5, and the shift fork position detection unit 5 is wrapped
Magnetic block 501 and sensor 502 are included, the magnetic block 501 is fixedly installed on the shift fork 7, and the sensor 502 passes through inspection
It surveys magnetic signal and determines 7 position of shift fork.
Further, the shift halting mechanism further includes locking module 3, and the locking module 3 includes locking wire casing 301
With positioning seat 302, the locking wire casing 301 is fixedly connected with the piston rod, and the locking wire casing 301 is equipped at least one
Limiting slot；One end of the positioning seat 302 is equipped with protrusion, and the protrusion can be stuck in the limiting slot.
Further, shift slot, scope neutral gear groove and parking slot are equipped on the locking wire casing 301 successively；When mechanism is in sky
When gear state, the protrusion is stuck in the scope neutral gear groove；When mechanism parking is completed, the protrusion is stuck in the parking slot；
When mechanism, which shifts gears, to be completed, the protrusion is stuck in the shift slot.That is, the locking module 3 passes through piston described in locking
The movement of bar so that mechanism is locked in the state of neutral gear, parking or shift.
Parking gear shifting mechanism of the present invention can realize that neutral gear, shift and parking function, principle difference are as follows：
In conjunction with Fig. 1, neutral gear principle is：When hydraulic cylinder does not work, the piston rod of hydraulic cylinder stretches out one end distance, unilateral same
The tooth set 802 of step device 8 is not contacted with shifting gear 4, and parking cam is not also contacted with parking arm 10,302 protrusion clamping of positioning seat
In scope neutral gear groove (position slot in i.e.)；At this point, 12 unpowered output of output shaft of speed changer, parking arm 10 also not with parking gear 11
Engagement, mechanism are in neutral position state.
In conjunction with Fig. 2, shift principle is：Hydraulic cylinder works, piston rod can back and forth stretch in cylinder barrel, and piston rod, which drives, to be dialled
It pitches 7 sliding tooths set 802 to move right, is engaged and shifts gears with shifting gear 4；In addition, piston rod can also drive shift fork 7 that can drive
Moving teeth set 802 is moved to the left, and gear is moved back to be detached from the realization of shifting gear 4.
In conjunction with Fig. 3, parking principle is：Hydraulic cylinder works, piston rod drive shift fork 7 to drive parking push rod assembly 9 to moving to left
Dynamic, parking cam 902 makes parking arm 10 gradually be engaged with parking gear 11, realizes parking；Similarly, piston rod, which can also drive, dials
7 driving parking push rod assembly 9 of fork moves right, and parking arm 10 progressively disengages parking gear 11, completes parking unlock.
In the present embodiment, the driving device using hydraulic cylinder as parking gear shifting mechanism, on the one hand because of hydraulic cylinder energy
The form of enough direct linear movement outputs, and its power output is also relatively controllable；On the other hand because of the hydraulic oil needed for hydraulic cylinder
It can directly be obtained from vehicle, without being further added by other units, space and cost can be saved.
In addition, hydraulic cylinder can be kept in a certain position, therefore the locking module in the present embodiment nor is it necessary that.With
And the parking push rod 901 in the present embodiment can also be hinged on the piston rod other than it can be connect with shift fork 7, realize that left and right is moved
It is dynamic.
Whether ball-screw or hydraulic pressure unit are all linear movement output moving left and right with shift fork, to real
Now shift and two kinds of functions of parking.Therefore, it is possible to obviously learn, the device or mechanism of linear motion can be generated
Under conditions of meeting rotating speed and torque, the alternative solution of ball-screw or hydraulic cylinder can be become.For example, using rack-and-pinion
Add turbine and worm structure or rack-and-pinion that gear auxiliary structure is added to substitute ball-screw；Or directly use linear movement output
Device, such as air pressure driving, hydraulic-driven or flexible axle of shifting gears driving etc..
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of parking gear shifting mechanism, which is characterized in that the parking gear shifting mechanism includes drive module, shift module and parking
Module；
The drive module includes ball-screw (6), driving motor (1) and shift fork (7), and the ball-screw (6) includes leading screw
Axis (601) and nut (602)；The driving motor (1) connect with the lead screw shaft (601), the shift fork (7) and the nut
(602) it connects, the shift fork (7) can be as the nut (602) be along the axis direction movement of the lead screw shaft (601)；
The shift module includes Unilateral synchronizer (8)；The Unilateral synchronizer (8) connect with the shift fork (7), described unilateral
Gear can be shifted gears and be moved back to synchronizer (8) with the shift fork (7) movement；
The parking module includes parking push rod assembly (9), parking arm (10) and parking gear (11)；The parking push rod assembly
(9) it is connect with the shift fork (7), and is set to the non-shift side of the Unilateral synchronizer (8)；The parking push rod assembly (9)
It can be mobile with the shift fork (7) so that the parking arm (10) is engaged with the parking gear (11) realizes parking.
2. a kind of parking gear shifting mechanism according to claim 1, which is characterized in that the parking push rod assembly (9) includes
Parking push rod (901), parking cam (902) and spring (903)；
The parking cam (902) connect with one end of the parking push rod (901), the other end of the parking push rod (901)
It is connect with the shift fork (7), the spring (903) is set on the parking push rod (901), and the spring (903) is for carrying
For the pretightning force of the parking cam (902).
3. a kind of parking gear shifting mechanism according to claim 2, which is characterized in that the parking cam (902) be equipped with
The cylinder of tapered end face, the parking arm (10) are equipped with groove；The parking cam (902) with shift fork (7) movement
Gradually it is bonded with the groove；When the parking cam (902) is bonded completely with the groove, the parking arm (10) and institute
State parking gear (11) engagement.
4. a kind of parking gear shifting mechanism according to claim 1, which is characterized in that the parking gear (11) and speed changer
Output shaft (12) be fixedly connected.
5. a kind of parking gear shifting mechanism according to claim 1, which is characterized in that the Unilateral synchronizer (8) includes tooth
Hub (801) and tooth set (802), the tooth set (802) connect with the shift fork (7), and the tooth set (802) can be in the shift fork
(7) it realizes shift close to either separate shifting gear (4) under the action of or moves back gear.
6. a kind of parking gear shifting mechanism according to claim 5, which is characterized in that the tooth set (802) is equipped with annular
One end of slot, the shift fork (7) is set in the annular groove.
7. a kind of parking gear shifting mechanism according to claim 1, which is characterized in that the drive module further includes controller
(2), the controller (2) is electrically connected with the driving motor (1), and the controller (2) and the driving motor (1) fixation are set
It is placed on case of transmission；The both ends of the ball-screw (6) are fixed on by bearing in speed changer respectively.
8. a kind of parking gear shifting mechanism according to claim 1, which is characterized in that the drive module further includes shift fork position
Detection unit (5) is set, the shift fork position detection unit (5) includes magnetic block (501) and sensor (502), the magnetic block
(501) it is fixedly installed on the shift fork (7), the sensor (502) determines shift fork (7) position by detecting magnetic signal.
9. a kind of parking gear shifting mechanism according to claim 1, which is characterized in that the shift halting mechanism further includes lock
Only module (3), the locking module (3) include locking wire casing (301) and positioning seat (302), the locking wire casing (301) and institute
It states nut (602) to be fixedly connected, the locking wire casing (301) is equipped at least one limiting slot；The one of the positioning seat (302)
End is equipped with protrusion, and the protrusion can be stuck in the limiting slot.
10. a kind of parking gear shifting mechanism according to claim 9, which is characterized in that set successively on the locking wire casing (301)
There are shift limiting slot, neutral gear limiting slot and parking limiting slot；When mechanism is in neutral position state, the protrusion is stuck in the neutral gear
In slot；When mechanism parking is completed, the protrusion is stuck in the parking slot；When mechanism, which shifts gears, to be completed, the protrusion is stuck in
In the shift slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343893.8A CN108644371A (en) | 2018-04-17 | 2018-04-17 | A kind of parking gear shifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343893.8A CN108644371A (en) | 2018-04-17 | 2018-04-17 | A kind of parking gear shifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644371A true CN108644371A (en) | 2018-10-12 |
Family
ID=63746282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810343893.8A Pending CN108644371A (en) | 2018-04-17 | 2018-04-17 | A kind of parking gear shifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644371A (en) |
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| CN109139899A (en) * | 2018-08-14 | 2019-01-04 | 吉利汽车研究院（宁波）有限公司 | A kind of gearshift, method and vehicle |
| CN110081168A (en) * | 2019-03-21 | 2019-08-02 | 北京长城华冠汽车科技股份有限公司 | Vehicle and its parking device |
| CN110307303A (en) * | 2019-06-06 | 2019-10-08 | 丰疆智能科技研究院(常州)有限公司 | Agricultural machinery |
| CN110486464A (en) * | 2019-09-03 | 2019-11-22 | 河北工业大学 | A kind of shift parking integrated mechanism of automatic transmission |
| CN110778713A (en) * | 2019-12-10 | 2020-02-11 | 重庆青山工业有限责任公司 | Transmission gear-shifting parking actuating mechanism |
| CN111059268A (en) * | 2019-11-18 | 2020-04-24 | 精进电动科技股份有限公司 | Gear shifting and parking structure of gearbox and execution method |
| CN111197651A (en) * | 2018-11-19 | 2020-05-26 | 现代自动车株式会社 | Shifting device for a multi-speed transmission of an electric vehicle |
| CN112196997A (en) * | 2019-07-08 | 2021-01-08 | 现代自动车株式会社 | Shift actuator for a transmission |
| US20220260146A1 (en) * | 2021-02-18 | 2022-08-18 | Arvinmeritor Technology, Llc | Axle assembly and shift mechanism for a shift collar |
| WO2022268435A1 (en) * | 2021-06-24 | 2022-12-29 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle having a coupling mechanism and a parking lock device |
| WO2023138962A1 (en) * | 2022-01-20 | 2023-07-27 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle having a coupling mechanism and a functionally secured parking lock device |
| US20230296162A1 (en) * | 2019-10-18 | 2023-09-21 | Höhn Gmbh | Two-speed transmission for an electric drive system, and drive system including such a two-speed transmission |
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| CN110307303A (en) * | 2019-06-06 | 2019-10-08 | 丰疆智能科技研究院(常州)有限公司 | Agricultural machinery |
| CN112196997A (en) * | 2019-07-08 | 2021-01-08 | 现代自动车株式会社 | Shift actuator for a transmission |
| CN110486464B (en) * | 2019-09-03 | 2020-12-22 | 河北工业大学 | Automatic derailleur's parking integration mechanism of shifting |
| CN110486464A (en) * | 2019-09-03 | 2019-11-22 | 河北工业大学 | A kind of shift parking integrated mechanism of automatic transmission |
| US20230296162A1 (en) * | 2019-10-18 | 2023-09-21 | Höhn Gmbh | Two-speed transmission for an electric drive system, and drive system including such a two-speed transmission |
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| CN111059268B (en) * | 2019-11-18 | 2021-11-19 | 精进电动科技股份有限公司 | Gear shifting and parking structure of gearbox and execution method |
| CN110778713A (en) * | 2019-12-10 | 2020-02-11 | 重庆青山工业有限责任公司 | Transmission gear-shifting parking actuating mechanism |
| US11441657B2 (en) * | 2021-02-18 | 2022-09-13 | Arvinmeritor Technology, Llc | Axle assembly and shift mechanism for a shift collar |
| US20220260146A1 (en) * | 2021-02-18 | 2022-08-18 | Arvinmeritor Technology, Llc | Axle assembly and shift mechanism for a shift collar |
| WO2022268435A1 (en) * | 2021-06-24 | 2022-12-29 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle having a coupling mechanism and a parking lock device |
| WO2023138962A1 (en) * | 2022-01-20 | 2023-07-27 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle having a coupling mechanism and a functionally secured parking lock device |
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Application publication date: 20181012 |