CN110375065A - A kind of shift mechanism, dynamical system and electric vehicle - Google Patents
A kind of shift mechanism, dynamical system and electric vehicle Download PDFInfo
- Publication number
- CN110375065A CN110375065A CN201910765571.7A CN201910765571A CN110375065A CN 110375065 A CN110375065 A CN 110375065A CN 201910765571 A CN201910765571 A CN 201910765571A CN 110375065 A CN110375065 A CN 110375065A
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- gear
- shift
- shift mechanism
- tooth
- shifting motor
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- 238000005183 dynamical system Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000007935 neutral effect Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 230000010355 oscillation Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000010009 beating Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The embodiment provides a kind of shift mechanism, dynamical system and electric vehicles, shift mechanism is applied to gear, shift mechanism includes: switch unit, and switch unit includes gear shifting motor, gear reduction, gear shift reversal means, sliding selector shaft and the shift fork with selector fork axis connection；Gear shifting motor is sequentially connected by spur gear deceleration mechanism and gear shift reversal means, for driving gear shift reversal means to do circuit oscillation；Gear shift reversal means and selector fork axis connection, to drive sliding selector shaft along itself axially reciprocating；Shift fork with the clutch collar of gear for connecting, when the external tooth apical tooth of the internal tooth of clutch collar and the engagement gear ring of gear or after beat tooth in gearshift procedure, reaction force can be transferred to gear shifting motor by gear reduction, so that gear shifting motor inverts and is back to neutral position.In gearshift procedure, clutch collar and engagement gear ring apical tooth or after beating tooth, gear shifting motor can be inverted, and soldered tooth is avoided to damage, and extend the service life of gear.
Description
Technical field
The present invention relates to automobile manufacturing fields, in particular to a kind of shift mechanism, dynamical system and electric vehicle.
Background technique
Electric automobile gear-box passes through control driving motor using the structure of no synchronizer and clutch in the prior art
Rotation speed, so that input shaft is synchronous with output shaft revolving speed, after revolving speed synchronizes, clutch collar works as clutch collar close to engagement gear ring
After engaging gear ring engagement, input shaft and output shaft synchronous rotate, so that the power of driving motor is transferred to driving wheel.
Due to using no-clutch, without the gearbox of synchronizer structure, there are problems that apical tooth in gearshift procedure, with change
The shift mechanism of fast case adaptation uses worm gear structure, therefore gearbox is in gear shift, occurs after apical tooth problem due to worm gear
Worm screw is locked, and then damages gearbox soldered tooth.
Summary of the invention
The purpose of the present invention includes, for example, providing a kind of shift mechanism, dynamical system and electric vehicle, can change
Occur inverting gear shifting motor when apical tooth or latch during shelves, is damaged to avoid the soldered tooth of gearbox, extend gearbox
Service life.
The embodiment of the present invention this can be implemented so that
In a first aspect, the embodiment of the present invention provides a kind of shift mechanism, shift mechanism applied to no synchronizer and without from
The gear of clutch, shift mechanism include:
Switch unit, switch unit include gear shifting motor, gear reduction, gear shift reversal means, sliding selector shaft and with
The shift fork of selector fork axis connection；Gear shifting motor is sequentially connected by gear reduction and gear shift reversal means, for driving gear shift
Reversal means does circuit oscillation；Gear shift reversal means and selector fork axis connection, to drive sliding selector shaft along itself axially reciprocating；It dials
Fork is connect for the clutch collar with gear, when outside the engagement gear ring of the internal tooth of clutch collar and gear in gearshift procedure
Tooth top tooth or after beating tooth, reaction force can be transferred to gear shifting motor by gear reduction, so that anti-after gear shifting motor stall
Turn and returns to neutral position.
In alternative embodiments, gear reduction is set as spur gear deceleration mechanism.
In alternative embodiments, the range setting of the transmission ratio I of gear reduction are as follows: 8≤I≤12.
In alternative embodiments, the transmission ratio I of gear reduction is set as 10.
In alternative embodiments, the quantity of switch unit is set as two.
In alternative embodiments, gear reduction include with the driving gear of the motor axis connection of gear shifting motor,
The first transmission gear and the second transmission gear and the change gear being connect with gear shift reversal means of coaxial arrangement, driving gear and the
The engagement of one transmission gear, the second transmission gear are engaged with change gear.
In alternative embodiments, two gear shift reversal meanss coaxial arrangement of two switch units.
In alternative embodiments, shift mechanism further includes casing and latch assembly, and switch unit is connect with casing,
Latch assembly is connected to sliding selector shaft and casing, for prevent sliding selector shaft hang shelves after the completion of along itself be axially moved and
It is out of supply.
Second aspect, the embodiment of the present invention provide a kind of dynamical system, and dynamical system includes:
The shift mechanism of gear and any one of such as aforementioned embodiments, the shift fork and gear of shift mechanism
Clutch collar connection.
The third aspect, the embodiment of the present invention provide a kind of electric vehicle, and electric vehicle includes:
Shift mechanism such as any one of aforementioned embodiments or the dynamical system such as aforementioned embodiments.
The beneficial effect of the embodiment of the present invention includes, for example:
To sum up, a kind of shift mechanism is present embodiments provided, gear shifting motor is connected by gear reduction and gear shift reversal means
It connects, gear shift reversal means and selector fork axis connection, sliding selector shaft are connect with shift fork, and shift fork is used to connect with the clutch collar of gear
It connects.When needing gear shift, torque is transferred to gear shift reversal means, gear shift reversal means direction by gear reduction by gear shifting motor starting
Direction initialization is swung, and sliding selector shaft is driven to move along own axes, and then shift fork is driven to move together, and mobile drive of shift fork connects
Trap is moved towards corresponding engagement gear ring, and clutch collar is engaged with gear ring is engaged, and realizes gear shift.When being engaged in gearshift procedure
Set with engage gear ring apical tooth or latch after, can generate apical tooth power at this time, apical tooth mechanical resistance hinders clutch collar to engage with gear ring is engaged, and
With the movement tendency for making the separate engagement gear ring of clutch collar, dialled since gear shifting motor is transferred a torque to by gear reduction
Fork, after clutch collar is by apical tooth power, clutch collar can be far from engagement gear ring movement, and drives sliding selector shaft counter motion,
Finally make gear shifting motor stall after invert, gear shifting motor reversion after can balance out apical tooth power, avoid clutch collar with engage gear ring
Damage reduces clutch collar and engages the risk of gear ring damage, extends the service life of gear.
Dynamical system provided in this embodiment includes the shift mechanism that above-described embodiment is mentioned, all with shift mechanism
Advantage.
Electric vehicle provided in this embodiment includes the dynamical system or shift mechanism that above-described embodiment is mentioned, and has gear shift
All advantages of mechanism or dynamical system.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of shift mechanism provided in this embodiment；
Fig. 2 is the structural schematic diagram for dismantling casing of shift mechanism provided in this embodiment.
Icon: 001- shift mechanism；100- gear shifting motor；200- gear reduction；210- driving gear；220- is actively
Axis；230- driven shaft；The first transmission gear of 240-；The second transmission gear of 250-；260- change gear；300- gear shift reversal means；
310- reversal means axis；400- casing.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, the embodiment of the present invention will be engaged below
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if there is the side of the instructions such as term " on ", "lower", "inner", "outside"
Position or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the side usually put
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, being only used for distinguishing description if there is term " first ", " second " etc., it is not understood to indicate or imply phase
To importance.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention can be interconnected.
Fig. 1 and Fig. 2 are please referred to, a kind of shift mechanism 001 is present embodiments provided, applied to no synchronizer and without clutch
The gear of device, with assisted gearshift, in gearshift procedure, the clutch collar and soldered tooth of gear are irised out existing apical tooth or are beaten
After tooth, gear shifting motor 100 can be made to invert, avoid clutch collar and engagement gear ring damage, extend the service life of gear.
Fig. 1 and Fig. 2 are please referred to, shift mechanism 001 provided in this embodiment includes switch unit, and switch unit includes gear shift
Motor 100, gear reduction 200, gear shift reversal means 300, the reeded sliding selector shaft (not shown) of tool and with change
The shift fork (not shown) of shelves shift fork axis connection；Gear shifting motor 100 is driven by spur gear deceleration mechanism and gear shift reversal means 300
Connection, for driving gear shift reversal means 300 to do circuit oscillation；Gear shift reversal means 300 engages with the groove on sliding selector shaft, and gear shift is dialled
To drive sliding selector shaft along itself axially reciprocating during 300 swing of finger；Shift fork is for the engagement with gear
Set connection, when the external tooth apical tooth of the engagement gear ring of the internal tooth and gear of clutch collar or after beat tooth in gearshift procedure, reaction
Power can be transferred to gear shifting motor 100 by gear reduction 200, so that gear shifting motor 100 inverts and is back to neutral position.
In the present embodiment, gear shifting motor 100 is connect by gear reduction 200 with gear shift reversal means 300, gear shift reversal means
300 connect with selector fork axis connection, sliding selector shaft with shift fork, and shift fork with the clutch collar of gear for connecting.It needs
When gear shift, gear shifting motor 100 starts, and torque is transferred to gear shift reversal means 300, gear shift reversal means 300 by gear reduction 200
It is swung towards direction initialization, sliding selector shaft is driven to move along own axes, and then shift fork is driven to move together, the mobile band of shift fork
Dynamic clutch collar is moved towards corresponding engagement gear ring, and clutch collar is engaged with gear ring is engaged, and realizes gear shift.When occurring in gearshift procedure
Clutch collar with engage gear ring apical tooth or latch after, apical tooth power can be generated at this time, apical tooth mechanical resistance hinders clutch collar to connect with gear ring is engaged
It closes, and there is the movement tendency for making clutch collar far from engagement gear ring, since gear shifting motor 100 will by gear reduction 200
Torque is transferred to shift fork, and after clutch collar is by apical tooth power, clutch collar can be far from engagement gear ring movement, and drives selector fork
Axis counter motion inverts after finally making 100 stall of gear shifting motor, and gear shifting motor 100 can balance out apical tooth power after inverting, and avoids
Clutch collar extends the service life of gear with gear ring damage, the risk of reduction clutch collar and engagement gear ring damage is engaged.
In the present embodiment, the range of the transmission ratio I of gear reduction 200 is arranged are as follows: 8≤I≤12, optionally, gear
The transmission ratio I of deceleration mechanism 200 is set as 10.Obviously, in other embodiments, the transmission ratio I of gear reduction 200 may be used also
To be set as 8,9,11 or 12 etc..It sets the transmission ratio of gear reduction 200 between 8-12, gear shifting motor 100 is logical
It crosses after gear reduction 200 slows down and delivers torque to shift fork, the speed of shift fork reduces, and connects convenient for clutch collar with gear ring is engaged
It closes, gear shift is more easier.Meanwhile after gear shifting motor 100 is slowed down by gear reduction 200, gear shifting motor 100 can be exported
Bigger torque, under the premise of guaranteeing to provide enough torques to drive shift fork to make clutch collar with gear ring engagement is engaged, Bu Huizao
It is excessive at torque, it is not in apical tooth or to beat the maximum that apical tooth power is less than that gear shifting motor 100 provides after tooth in gearshift procedure and change
The case where shelves power, in apical tooth or beats after tooth gear shifting motor 100 and can invert in the case where apical tooth power acts on, avoids clutch collar and engagement
Gear ring damage.
For example, in a concrete application of shift mechanism 001 provided in this embodiment, the maximum gear shift of gear shifting motor 100
Power is 670n, clutch collar and engagement the gear ring apical tooth or the smallest apical tooth power is 1000n, apical tooth power after beating tooth in gearshift procedure
Greater than the maximum berth-changing strength of gear shifting motor 100, therefore, the apical tooth or after beating tooth in gearshift procedure, gear shifting motor 100 can be anti-
Turn, avoids damage soldered tooth.
Please refer to Fig. 1 and Fig. 2, in the present embodiment, gear reduction 200 is set as spur gear deceleration mechanism 200.Gear
Deceleration mechanism 200 includes driving gear 210, driving shaft 220, driven shaft 230, the first transmission gear 240, the second transmission gear
250 and change gear 260.Driving gear 210 is spur gear, the output shaft coaxial arrangement of driving shaft 220 and gear shifting motor 100
And be fixedly connected, driving gear 210 is set in outside driving shaft 220 and is fixedly connected with driving shaft 220.Driven shaft 230 is mounted on
On the casing 400 of shift mechanism 001, the first transmission gear 240 and the second transmission gear 250 are set in outside driven shaft 230, and
Driven shaft 230 can be relative to casing 400 around own axis, and the first transmission gear 240 and the second transmission gear 250 are solid
It is scheduled on driven shaft 230, is rotated together with driven shaft 230.Change gear 260 is fixed in gear shift reversal means 300 or gear shift tooth
Wheel 260 is integrally formed with gear shift reversal means 300.Driving gear 210 is engaged with the first transmission gear 240, the second transmission gear 250 with
Change gear 260 engages.Optionally, the second transmission gear 250 is sector gear.Change gear 260 is sector gear.
In the present embodiment, the quantity of switch unit is set as two, and two switch unit independent controls may be implemented four
The gear shift of gear.In other words, two switch units include two gear shift reversal meanss 300, and each gear shift reversal means 300 realizes two shelves
The gear shift of position, and then realize corresponding four gears of two gear shift reversal meanss 300.Obviously, each gear shift reversal means 300 all has a position
In the position of neutral gear, then, each gear shift reversal means 300 includes three gears.For example, a gear shift reversal means 300 includes one grade, two
Shelves and the neutral gear between one grade and two grades.Another gear shift reversal means 300 include third gear, fourth gear and be located at third gear and fourth gear it
Between neutral gear.
In the present embodiment, optionally, two gear shift reversal meanss 300 of two switch units share a reversal means axis 310, reversal means
Axis 310 is mounted on casing 400, and two gear shift reversal meanss 300 are coaxially disposed, small in size, the space occupied of shift mechanism 001
It is small.
In the present embodiment, shift mechanism 001 further includes casing 400 and latch assembly, and switch unit and casing 400 connect
It connects, latch assembly is connected to sliding selector shaft and casing 400, for axial along itself after the completion of preventing sliding selector shaft from hanging shelves
Movement and it is out of supply.Optionally, latch assembly includes telescopic inserted link, and inserted link connect with casing 400, is arranged on sliding selector shaft
There is card slot, after the completion of gear shift, can be plugged in card slot after inserted link elongation, realize the positioning of sliding selector shaft, avoid out of supply.It inserts
The length of bar can be controlled by cylinder or hydraulic cylinder.
Shift mechanism 001 provided in this embodiment, after occurring apical tooth in gearshift procedure or beating tooth, gear shifting motor 100
It can invert, avoid clutch collar and engagement gear ring damage.
The present embodiment additionally provides a kind of dynamical system, including gear and the shift mechanism of above-mentioned offer 001, gear shift
The shift fork of mechanism 001 and the clutch collar of gear connect.
The present embodiment additionally provides a kind of electric vehicle, including above-mentioned shift mechanism 001 or above-mentioned dynamical system.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of shift mechanism, the shift mechanism exists applied to no synchronizer and the gear of no-clutch, feature
In the shift mechanism includes:
Switch unit, the switch unit include gear shifting motor, gear reduction, gear shift reversal means, sliding selector shaft and with
The shift fork of the selector fork axis connection；The gear shifting motor is connected by the gear reduction and gear shift reversal means transmission
It connects, for driving the gear shift reversal means to do circuit oscillation；The gear shift reversal means and the selector fork axis connection, described in driving
Sliding selector shaft is along itself axially reciprocating；The shift fork with the clutch collar of the gear for connecting, gearshift procedure
In when the clutch collar the internal tooth and gear engagement gear ring external tooth apical tooth or after beat tooth, reaction force can pass through
The gear reduction is transferred to the gear shifting motor, so that the gear shifting motor inverts and is back to neutral position.
2. shift mechanism according to claim 1, it is characterised in that:
The gear reduction is set as spur gear deceleration mechanism.
3. shift mechanism according to claim 1, it is characterised in that:
The range of the transmission ratio I of the gear reduction is arranged are as follows: 8≤I≤12.
4. shift mechanism according to claim 3, it is characterised in that:
The transmission ratio I of the gear reduction is set as 10.
5. shift mechanism according to claim 1, it is characterised in that:
The quantity of the switch unit is set as two.
6. shift mechanism according to claim 5, it is characterised in that:
The gear reduction includes the first biography with the driving gear of the motor axis connection of the gear shifting motor, coaxial arrangement
Moving gear and the second transmission gear and the change gear being connect with gear shift reversal means, the driving gear and first driving cog
Wheel engagement, second transmission gear are engaged with the change gear.
7. shift mechanism according to claim 6, it is characterised in that:
The gear shift reversal means coaxial arrangement of two of two switch units.
8. shift mechanism according to claim 1, it is characterised in that:
The shift mechanism further includes casing and latch assembly, and the switch unit is connect with the casing, the locking group
Part is connected to the sliding selector shaft and the casing, for axial along itself after the completion of preventing the sliding selector shaft from hanging shelves
Movement and it is out of supply.
9. a kind of dynamical system, which is characterized in that the dynamical system includes:
Gear and such as shift mechanism of any of claims 1-8, the shift fork of the shift mechanism with it is described
The clutch collar of gear connects.
10. a kind of electric vehicle, which is characterized in that the electric vehicle includes:
Such as shift mechanism of any of claims 1-8 or dynamical system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765571.7A CN110375065A (en) | 2019-08-19 | 2019-08-19 | A kind of shift mechanism, dynamical system and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765571.7A CN110375065A (en) | 2019-08-19 | 2019-08-19 | A kind of shift mechanism, dynamical system and electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN110375065A true CN110375065A (en) | 2019-10-25 |
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ID=68259883
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910765571.7A Pending CN110375065A (en) | 2019-08-19 | 2019-08-19 | A kind of shift mechanism, dynamical system and electric vehicle |
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| Country | Link |
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| CN105065635A (en) * | 2015-07-24 | 2015-11-18 | 重庆隆旺机电有限责任公司 | Main reducer assembly with automatic gear shifting function |
| CN205745238U (en) * | 2016-05-07 | 2016-11-30 | 潍柴动力股份有限公司 | A kind of shift-selecting and changing actuating mechanism for automatic speed transmission |
| CN206555428U (en) * | 2017-02-13 | 2017-10-13 | 深圳东风汽车有限公司 | A kind of electric automobile and its auto-shifting device |
| CN206802276U (en) * | 2017-06-19 | 2017-12-26 | 吉林大学 | A kind of four gear AMT gear shifting actuating mechanisms of electric car |
| CN108953590A (en) * | 2018-08-17 | 2018-12-07 | 清华大学 | A kind of double shift motor executing agencies for mechanical automatic gearbox |
| CN109340369A (en) * | 2018-10-31 | 2019-02-15 | 武汉理工通宇新源动力有限公司 | Two grades of mechanical transmission gear shifting actuating mechanisms and automatic mechanical transmission |
| CN110360314A (en) * | 2019-08-19 | 2019-10-22 | 宜宾丰川动力科技有限公司 | A kind of shift mechanism and electric vehicle |
-
2019
- 2019-08-19 CN CN201910765571.7A patent/CN110375065A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016711A (en) * | 2012-12-25 | 2013-04-03 | 长城汽车股份有限公司 | Gear selecting and shifting actuating mechanism and automatic transmission |
| CN105065635A (en) * | 2015-07-24 | 2015-11-18 | 重庆隆旺机电有限责任公司 | Main reducer assembly with automatic gear shifting function |
| CN205745238U (en) * | 2016-05-07 | 2016-11-30 | 潍柴动力股份有限公司 | A kind of shift-selecting and changing actuating mechanism for automatic speed transmission |
| CN206555428U (en) * | 2017-02-13 | 2017-10-13 | 深圳东风汽车有限公司 | A kind of electric automobile and its auto-shifting device |
| CN206802276U (en) * | 2017-06-19 | 2017-12-26 | 吉林大学 | A kind of four gear AMT gear shifting actuating mechanisms of electric car |
| CN108953590A (en) * | 2018-08-17 | 2018-12-07 | 清华大学 | A kind of double shift motor executing agencies for mechanical automatic gearbox |
| CN109340369A (en) * | 2018-10-31 | 2019-02-15 | 武汉理工通宇新源动力有限公司 | Two grades of mechanical transmission gear shifting actuating mechanisms and automatic mechanical transmission |
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