CN207921249U - Pure electric vehicle two keeps off planet row speed changer - Google Patents
Pure electric vehicle two keeps off planet row speed changer Download PDFInfo
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- CN207921249U CN207921249U CN201721905579.1U CN201721905579U CN207921249U CN 207921249 U CN207921249 U CN 207921249U CN 201721905579 U CN201721905579 U CN 201721905579U CN 207921249 U CN207921249 U CN 207921249U
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- gear
- power taking
- output shaft
- tooth hub
- speed changer
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Abstract
A kind of gear of pure electric vehicle two planet row speed changer,Bearing one is fixed with the input shaft of sun gear in transmission case body,The overhanging connection rotor in input shaft one end,An output shaft is supported in transmission case body,Planet carrier is fixedly installed on output shaft,Sun gear is engaged with the planetary gear supported on planet carrier,A bottom gear tooth hub is fixedly installed in transmission case body,A top gear tooth hub is fixedly installed on output shaft,One driving center sky is set on the output shaft,Driving center one end setting ring gear is engaged with planetary gear,One synchronizer of other end spline fitted of driving center,The clutch collar of synchronizer, which is axially movable, to be engaged synchronizer with bottom gear tooth hub or by synchronizer and top gear tooth hub plasmid conjugation power,A power taking output shaft is supported in transmission case body,A power taking driven gear is fixedly installed on power taking output shaft,A power taking driving gear is fixedly installed on input shaft,Power taking driving gear is engaged with power taking driven gear transmits power taking output power.This speed changer structure is compact, and can realize that power taking exports.
Description
Technical field
The utility model is related to drive technology fields, and in particular to a kind of gear planet of pure electric vehicle two with power taking function
Arrange speed changer.
Background technology
Electric vehicle is novel, energy-saving and environmental protection vehicle to be had especially under the serious overall situation of current air pollution
Huge development potentiality and wide application prospect.Electric vehicle uses motor instead of the engine of orthodox car, electronic
Machine can start with carrying, and meet automobile requirement by reasonably configuring, this is the very big difference with engine.Electronic
It is improper using multi-shifting speed variator on vehicle, if but cancel variable speed drive, it is difficult to take into account automobile climbing and high speed row
The requirements, especially small and medium-sized car such as sail, it is necessary to the dynamical system of electric vehicle is redesigned for the working characteristics of motor
System.
Current electric driving system for electric automobile increasingly has been favored by people, compared with traditional drive system,
Electric driving system for electric automobile has prodigious advantage, is especially embodied in in terms of environmental protection.The speed change of existing electric vehicle
The speed changer of the existing automobile of device generally use, the input shaft and output shaft of this kind of speed changer are parallel shaft arrangement, speed changer it is defeated
Enter axis with rotor to be connected, the output shaft of speed changer exports power, and the transformation for keeping off speed is by being arranged in input shaft and output
The gear pairs of different gear speed on axis realize, leading to the speed changer of above structure, not only weight is big, and not enough gathers in structure
It gathers and needs larger assembly space.And existing electric vehicle transmission there is no the function knot for accessory mechanisms power taking
In addition structure just need to also be added specially if special vehicle will use pure electric vehicle power drive between speed changer and accessory mechanisms
The power takeoff of door produces so as to cause the problems such as complicated, device installation footprint is big, and the cost of manufacture of vehicle increases
It is raw, it is unfavorable for the miniaturization of vehicle power compact driving system.
Invention content
The purpose of this utility model is to provide a kind of light-weight and compact-sized pure electric vehicle two with power taking function
Keep off planet row speed changer.
The technical solution for solving above-mentioned technical problem is as follows：
A kind of gear of pure electric vehicle two planet row speed changer, including motor, speed changer, it is characterised in that：The transmission case
An input shaft is supported by first bearing in vivo, input shaft one end is fixedly installed sun gear, stretches out case of transmission outside the other end
Rotor is connected, the transmission case body is interior to support an output shaft by second bearing, and a line is fixedly installed in output shaft one end
Carrier, the other end stretch out case of transmission outside, and the input shaft and output shaft are located at same axial line, the sun gear and planet
The planetary gear supported on frame engages, one bottom gear tooth hub of fixed setting in the transmission case body, fixed on the output shaft to set
A top gear tooth hub is set, a driving center sky is set on the output shaft, and ring gear, the ring gear and planet is arranged in described driving center one end
Wheel engagement, one synchronizer of other end spline fitted of driving center, the synchronizer are located between bottom gear tooth hub and top gear tooth hub,
The clutch collar of the synchronizer be axially movable under fork controls by synchronizer engaged with bottom gear tooth hub or by synchronizer with
Top gear tooth hub plasmid conjugation power, the transmission case body is interior to support a power taking output shaft by 3rd bearing, fourth bearing,
Case of transmission is stretched out outside power taking output shaft one end, and a power taking driven gear is fixedly installed on the power taking output shaft, it is described defeated
Enter and a power taking driving gear is fixedly installed on axis, it is dynamic that the power taking driving gear engages transmission power taking output with power taking driven gear
Power.
External splines is arranged in the outer circle of the ring gear, and ring gear is coordinated by the internal spline that the external splines and driving center are arranged
It is formed circumferentially fixed.
The outer circle of the ring gear is fixed with driving center interference fit.
The bottom gear tooth hub, top gear tooth hub are cone hub.
The bottom gear tooth hub is fixedly connected on the support plate being arranged in transmission case body.
The sun gear, power taking driving gear and the circumferentially fixed connection of input shaft.
The power taking driving gear is to be integrally machined molding structure with sun gear.
The top gear tooth hub, planet carrier and the circumferentially fixed connection of output shaft.
The power taking driven gear and the circumferentially fixed connection of power taking output shaft.
The case of transmission bottom is equipped with cooling oil sump, and radiator structure is equipped with outside cooling oil sump.
The advantages of the utility model is to be arranged in the transmission case body and fix a bottom gear tooth hub, on the output shaft
A top gear tooth hub is fixedly installed, a driving center sky is set on the output shaft, and ring gear, the ring gear is arranged in described driving center one end
It is engaged with planetary gear, one synchronizer of other end spline fitted of driving center, the synchronizer is located at bottom gear tooth hub and top gear tooth
Between hub, the clutch collar of the synchronizer is axially movable under fork controls to be engaged synchronizer with bottom gear tooth hub or will be same
Walk device and top gear tooth hub plasmid conjugation power.In this way when clutch collar is only engaged in the splined hub of synchronizer, speed changer
Transmission is in neutral gear position；Synchronizer is engaged with bottom gear tooth hub when clutch collar moves, since bottom gear tooth hub is integrally fixed at change
In fast device shell, synchronizer is stopped rotating by the constraint of bottom gear tooth hub brakes driving center, is thus arranged driving center one end
Ring gear forms fixed state, and the power that motor inputs is by input shaft through sun gear, planetary gear, planet carrier to output shaft
Output, electric vehicle form bottom gear transport condition；Synchronizer is engaged with top gear tooth hub when clutch collar moves, synchronizer is detached from
The constraint of bottom gear tooth hub, the power that motor inputs is by input shaft through sun gear, planetary gear, ring gear, driving center, synchronization
Device, top gear tooth hub to output shaft export, and electric vehicle forms top gear transport condition.
A power taking output shaft is supported by 3rd bearing, fourth bearing additionally, due in the transmission case body, power taking is defeated
Case of transmission is stretched out outside shaft one end, is fixedly installed a power taking driven gear on the power taking output shaft, on the input shaft
A power taking driving gear is fixedly installed, the power taking driving gear is engaged with power taking driven gear transmits power taking output power.This
Sample, motor power can also be exported from input shaft through power taking driving gear, power taking driven gear to power taking output shaft, directly be driven
The accessory mechanisms that axis connection is exported with power taking work, and so that pure electric vehicle two is kept off planet row speed changer and can be used in such as tipping bucket
Vehicle, bulk cement carrier, fire fighting truck, road cleaner etc. are equipped with the special vehicle of accessory mechanisms, make special vehicle also can be real
Existing pure electrical energy drive, eliminates the exhaust emission of feature vehicle.
Also, it is small since the gear planet row speed changer structure of this pure electric vehicle two is compact, it is light-weight, occupancy can be reduced
Assembly space, and can realize power taking export, the cost of manufacture of various pure electric vehicles can be reduced, meet variety classes vehicle
It is required that.
Description of the drawings
Fig. 1 is the schematic diagram of two gear planet row speed changers of the pure electric vehicle of the utility model.
Label in attached drawing：1 is input shaft, and 2 be first bearing, and 3 be power taking driving gear, and 4 be sun gear, and 5 be planet
Wheel, 6 be ring gear, and 7 be planet carrier, and 8 be bottom gear tooth hub, and 9 be driving center, and 10 be synchronizer, and 10a is clutch collar, and 11 be height
Speed gear tooth hub, 12 be second bearing, and 13 be 3rd bearing, 14 is power taking output shaft, 15 is power taking driven gear, 16 be the 4th axis
It holds, 17 be motor, and 18 be support plate, and 19 be output shaft, and 20 be shift fork, and 21 be cooling oil sump.
Specific implementation mode
As shown in Figure 1,
A kind of pure electric vehicle two keeps off planet row speed changer, including motor 17, speed changer, by the in the transmission case body
One bearing 2 supports an input shaft 1, and sun gear 4 is fixedly installed in 1 one end of input shaft, and it is circumferentially solid to stretch out case of transmission outside the other end
Surely the rotor of motor 17 is connected.The sun gear 4 is circumferentially fixed to be connected on input shaft 1, this it is circumferentially fixed can by singly-bound or
Spline is connected and fixed, can also be by being interference fitted or being welded to connect fixation.Pass through second bearing 12 in the transmission case body
An output shaft 19 is supported, 19 one end of output shaft is fixedly installed a planet carrier 7, stretches out case of transmission outside the other end.The planet
Frame 7 is circumferentially fixed to be connected on output shaft 19, this is circumferentially fixed to be connected and fixed by singly-bound or spline, and interference can also be passed through
Coordinate or be welded to connect fixation.The input shaft 1 and output shaft 19 are located at same axial line, are not connected directly between two axis.Institute
It states sun gear 4 and is engaged with the planetary gear 5 supported on planet carrier 7.A bottom gear tooth hub 8 is fixedly installed in the transmission case body,
The bottom gear tooth hub 8 is bolted to connection on the support plate 18 being arranged in transmission case body, makes the bottom gear tooth hub 8
Form fixed tooth hub.Be fixedly installed a top gear tooth hub 11 on the output shaft 19, the top gear tooth hub 11 it is circumferentially fixed
On output shaft 19, this is circumferentially fixed to be connected and fixed by singly-bound or spline, can also be solid by being interference fitted or being welded to connect
It is fixed.For one driving center, 9 empty set on output shaft 19, ring gear 6 is arranged in 9 one end of the driving center, which nibbles with planetary gear 5
It closes, one synchronizer 10 of other end spline fitted of driving center 9, the synchronizer 10 is located at bottom gear tooth hub 8 and top gear tooth hub 11
Between, the clutch collar 10a of the synchronizer 10 is axially movable under the control of shift fork 20 connects synchronizer 10 and bottom gear tooth hub 8
It closes or synchronizer 10 and 11 plasmid conjugation difference of top gear tooth hub is kept off into quick-action power.Pass through 3rd bearing in the transmission case body
13, fourth bearing 16 supports a power taking output shaft 14, and power taking output shaft stretches out case of transmission outside 14 one end.The power taking output
A power taking driven gear 15 is fixedly installed on axis 14, which can be connected to by the way that spline or singly-bound are circumferentially fixed
On power taking output shaft 14, it can also be interference fitted and be fixedly connected on power taking output shaft 14.Fixed setting one takes on the input shaft 1
Advocate moving gear 3, which can be connected to by the way that spline or singly-bound are circumferentially fixed on input shaft 1, also can interference match
Conjunction is fixedly connected on input shaft 1.The power taking driving gear 3 is engaged with power taking driven gear 15 transmits power taking output power.
The motor 17 and case of transmission be bolted it is fixed form an entirety, can when being installed on vehicle provider
Just, be conducive to entrucking layout designs.
It is more smooth for the clutch collar 10a and the engagement of bottom gear tooth hub 8, top gear tooth hub 11 that make synchronizer 10, it is described
Bottom gear tooth hub 8, top gear tooth hub 11 are cone hub, enable the lock ring and bottom gear tooth hub 8, top gear tooth hub of synchronizer 10
11 form frictional fits, can be engaged with the soldered tooth of bottom gear tooth hub 8 or with the engagement of top gear tooth hub 11 in clutch collar 10a
When do not occur hit interference, keep shift smooth.
The utility model is not limited to the above embodiment, and external splines can be arranged in the outer circle of the ring gear 6, be made internal tooth
Circle 6 cooperatively formed with the internal spline that driving center 9 be arranged by the external splines it is circumferentially fixed, both facilitated in this way ring gear 6 and be driven
The circumferentially fixed assembly connection of hub 9, and can guarantee assembly intensity, so that ring gear 6 is more easily fabricated separately.Or
Person can also fix the outer circle of the ring gear 6 and the interference fit of driving center 9.
Power taking driving gear 3 involved in the utility model can also be to be integrally machined molding structure with sun gear 4, this
Kind structure can shorten the axial length of installation site, and the volume for being conducive to this speed changer further reduces, while also can guarantee
The intensity of gear meets power output requirement.
It is additionally provided with cooling oil sump 21 in the bottom of case of transmission, 21 outside of cooling oil sump is equipped with radiator structure.Heat dissipation knot
Structure can be several radiating ribs, can also be heat dissipation plate, be conducive to the cooling effect for improving case of transmission intracavitary lubricating oil.
When the utility model pure electric vehicle two keeps off planet row transmission duty, the rotor banding driven input shaft rotation of motor is defeated
Enter axis by sun gear drive planetary gear rotation, while by power taking driving gear drive power taking driven gear rotation, power taking from
Moving gear drives power taking output shaft rotation output power taking power.Sun gear drives driving center rotation by planetary gear through ring gear,
Output shaft rotation is driven through planet carrier by planetary gear simultaneously.When vehicle need to be run at a low speed, the clutch collar for stirring synchronizer will
Synchronizer is engaged with bottom gear tooth hub, and synchronizer is made to be detached with top gear tooth hub, since bottom gear tooth hub is integrally fixed at speed changer
In shell, synchronizer is stopped rotating to form driving center by the constraint of bottom gear tooth hub to be braked, and is thus arranged driving center one end
Ring gear forms fixed state, and the power of motor input drives planetary gear public around sun gear by input shaft through sun gear
Turn, the planetary gear of revolution drives planet carrier rotation, planet carrier to drive output shaft rotation output power, the idle running of top gear tooth hub, electricity
Motor-car forms bottom gear transport condition.When vehicle need to run at high speed, the clutch collar of synchronizer is stirred by synchronizer and top gear
Tooth hub engages, and synchronizer detaches with bottom gear tooth hub, the power of motor input by input shaft through sun gear drive planetary gear around
Sun gear revolves round the sun, and planetary gear drives ring gear rotation, to drive driving center, synchronizer, the rotation of top gear tooth hub, top gear tooth
Hub drives output shaft to export power, and electric vehicle forms top gear transport condition.When electric vehicle do not travel and accessory mechanisms still
When needing work, the clutch collar of synchronizer is toggled it into neutral gear position, planetary gear idle running, output shaft does not export power, and motor is defeated
The power entered exports power taking power by input shaft through power taking driving gear, power taking driven gear to power taking output shaft.
The gear planet row speed changer of pure electric vehicle two of the utility model is applicable in and various new energy pure electric vehicles, especially suitable
In the special vehicle for needing power taking equipped with accessory mechanisms, such as dump truck, bulk cement carrier, fire fighting truck, road cleaner, this reality
With the novel speed changer miniaturization, the lightweight that adapt to motor speed requirement that can make maximum input torque 4200N.m grades, allow pure
The speed changer of electrodynamic special type truck, heavy goods vehicle etc. can be compacter, and the wheelbase of installation space shortens, while carrying energy
Power is enhanced.
Claims (10)
1. a kind of pure electric vehicle two keeps off planet row speed changer, including motor, speed changer, it is characterised in that：The case of transmission
Interior to support an input shaft by first bearing, sun gear is fixedly installed in input shaft one end, and stretching out case of transmission outside the other end connects
Rotor is connect, passes through second bearing one output shaft of bearing, one planet of output shaft one end fixed setting in the transmission case body
Frame, the other end stretch out case of transmission outside, and the input shaft and output shaft are located at same axial line, the sun gear and planet carrier
The planetary gear of upper bearing engages, and a bottom gear tooth hub is fixedly installed in the transmission case body, is fixedly installed on the output shaft
One top gear tooth hub, a driving center sky are set on the output shaft, and ring gear, the ring gear and planetary gear is arranged in described driving center one end
Engagement, one synchronizer of other end spline fitted of driving center, the synchronizer are located between bottom gear tooth hub and top gear tooth hub, institute
State synchronizer clutch collar be axially movable under fork controls by synchronizer engaged with bottom gear tooth hub or by synchronizer with it is high
Speed gear tooth hub plasmid conjugation power, the transmission case body is interior to support a power taking output shaft by 3rd bearing, fourth bearing, takes
Case of transmission is stretched out outside power output shaft one end, and a power taking driven gear, the input are fixedly installed on the power taking output shaft
A power taking driving gear is fixedly installed on axis, it is dynamic that the power taking driving gear engages transmission power taking output with power taking driven gear
Power.
2. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The outer circle of the ring gear
External splines is set, and ring gear is cooperatively formed by the external splines with the internal spline that driving center is arranged circumferentially fixed.
3. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The outer circle of the ring gear
It is interference fitted and fixes with driving center.
4. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The bottom gear tooth hub,
Top gear tooth hub is cone hub.
5. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The bottom gear tooth hub is solid
Surely it is connected on the support plate being arranged in transmission case body.
6. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The sun gear, power taking
Driving gear and the circumferentially fixed connection of input shaft.
7. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The power taking driving gear
It is to be integrally machined molding structure with sun gear.
8. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The top gear tooth hub,
Planet carrier and the circumferentially fixed connection of output shaft.
9. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The power taking driven gear
With the circumferentially fixed connection of power taking output shaft.
10. pure electric vehicle two according to claim 1 keeps off planet row speed changer, it is characterised in that：The case of transmission
Bottom is equipped with cooling oil sump, and radiator structure is equipped with outside cooling oil sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721905579.1U CN207921249U (en) | 2017-12-29 | 2017-12-29 | Pure electric vehicle two keeps off planet row speed changer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721905579.1U CN207921249U (en) | 2017-12-29 | 2017-12-29 | Pure electric vehicle two keeps off planet row speed changer |
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| Publication Number | Publication Date |
|---|---|
| CN207921249U true CN207921249U (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906174A (en) * | 2017-12-29 | 2018-04-13 | 綦江齿轮传动有限公司 | Pure electric vehicle two keeps off planet row speed changer |
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2017
- 2017-12-29 CN CN201721905579.1U patent/CN207921249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906174A (en) * | 2017-12-29 | 2018-04-13 | 綦江齿轮传动有限公司 | Pure electric vehicle two keeps off planet row speed changer |
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