CN206633789U - Bi-motor couples two level nutating speed change gear - Google Patents
Bi-motor couples two level nutating speed change gear Download PDFInfo
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- CN206633789U CN206633789U CN201720290153.3U CN201720290153U CN206633789U CN 206633789 U CN206633789 U CN 206633789U CN 201720290153 U CN201720290153 U CN 201720290153U CN 206633789 U CN206633789 U CN 206633789U
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Abstract
A kind of bi-motor coupling two level nutating speed change gear, including the planet carrier by the first motor-driven rotation are the utility model is related to, the outer cone gear A and outer cone gear B that nutation movement is carried out with the rotation of planet carrier are arranged with the planet carrier；Also include the internal bevel gear A engaged with outer cone gear A and the internal bevel gear B being meshed with outer cone gear B, the internal bevel gear A are connected with power output shaft, the internal bevel gear B is installed on a unilateral bearing and by the second motor-driven rotation.The utility model bi-motor coupling two level nutating speed change gear can realize single motor single solely work or bi-motor cooperation, and simple in construction, control difficulty is small, and manufacturing cost is low, and radial dimension is small, it is possible to achieve big speed reducing ratio.
Description
Technical field
It the utility model is related to a kind of bi-motor coupling two level nutating speed change gear.
Background technology
Electric coach electric driver is typically combined using single motor with conventional gearbox at present, by gearbox not
Car climbing and the requirement run at high speed are realized with gear.In order to improve economy and dynamic property, some bi-motors coupling speed change
Device is applied on electric motor coach.The Chinese patent of Application No. 201010100671.7 discloses a kind of suitable pure electronic
The electric driver of the motor rotating speed coupling of motor bus, is subtracted by one group of simple planetary mechanism, two motors, two
Fast device and a lock device composition.Realize to be operated alone by the first motor during low speed by the control to lock device and realize large velocity ratio
High pulling torque exports after deceleration, and two motor cooperations realize that the requirement of vehicle high-speed is realized in rotating speed coupling during high speed.
The Chinese patent of Application No. 201410348074.4 discloses a kind of new-energy automobile bi-motor coupling driving system
System and control method.It is made up of, is realized to automobile two motors, two sets of clutch assemblies and a set of power coupler assembly
Control, meet running car performance requirement.
Electric automobile bi-motor coupling drive system disclosed above, all compares in motor to the speed change gear between wheel
Complexity, including planetary gear, fixed speed ratio gear mechanism, certain structures also have more clutch and lock device, though some
Mechanism can realize multiple-working mode, but speed change gear is complicated, improve the difficulty of control system, increase production cost, drop
Low system effectiveness.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of simple in construction, and control difficulty is small, low pair of manufacturing cost
Motor couples two level nutating speed change gear.
The utility model is realized using following scheme：A kind of bi-motor couples two level nutating speed change gear, including by first
The planet carrier of motor-driven rotation, the outer cone gear A that nutation movement is carried out with the rotation of planet carrier is arranged with the planet carrier
With outer cone gear B；Also include the internal bevel gear A engaged with outer cone gear A the and internal bevel gear B being meshed with outer cone gear B,
The internal bevel gear A is connected with power output shaft, and the internal bevel gear B is installed in the rotating shaft of the second motor, the second motor
Rotating shaft on be also equipped with unilateral bearing.
Further, the outer cone gear A, outer cone gear B, internal bevel gear A and internal bevel gear B are bicircular arcs cone tooth
Wheel；The power output shaft is connected with the differential mechanism in Transmission Bridge.
Further, the nutational angle when outer cone gear A and outer cone gear B do nutation movement is identical.
Compared with prior art, the utility model has the advantages that：The utility model bi-motor couples two level chapter
Dynamic speed change gear can realize single motor single solely work or bi-motor cooperation, and simple in construction, control difficulty is small, manufacturing cost
Low, radial dimension is small, it is possible to achieve big speed reducing ratio, solves in conventional electric automobile and is used to reach big speed reducing ratio
Multiple reducing gears, complicated, the problem of radial dimension is big.
For the purpose of this utility model, technical scheme and advantage is more clearly understood, specific embodiment will be passed through below
And relevant drawings, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model embodiment organigram；
Fig. 2 is planet carrier organigram in the utility model embodiment；
Label declaration in figure：The motors of 1- first, 2- planet carriers, 3- outer cones gear B, 4- outer cones gear A, 5- internal bevel gears A,
6- internal bevel gear B, 7- unilateral bearing, the motors of 8- second, 9- power output shafts, 10- differential mechanisms, 11- wheels, the bar portions of 12- first,
The bar portions of 13- second, the bar portions of 14- the 3rd.
Embodiment
As shown in Figure 1 and 2, a kind of bi-motor coupling two level nutating speed change gear, including rotation is driven by the first motor 1
Planet carrier 2, the outer cone gear A 4 and outer cone gear B 3 that nutation movement is carried out with the rotation of planet carrier are arranged with the planet carrier,
Outer cone gear A and outer cone gear B and the rotatable engagement of planet carrier 2；Also include the internal bevel gear A5 that is engaged with outer cone gear A and with
The internal bevel gear B6 that outer cone gear B is meshed, the internal bevel gear A are connected with power output shaft 9, the internal bevel gear B peaces
In rotating shaft loaded on the second motor 8, unilateral bearing 7 is also equipped with the rotating shaft of the second motor 8, unilateral bearing 7 ensures the second electricity
The output shaft of machine can only rotate in one direction, the meeting self-locking in reverse directions, play the effect of braking.
The operation principle of bi-motor coupling two level nutating speed change gear is as follows：
（1）Single motor drives slow-speed of revolution high torque mode of operation：First motor 1 is operated alone, and the second motor 8 does not work,
First motor 1 drives planet carrier H to rotate, and at this moment rotation speed relation is between planet carrier, internal bevel gear A and internal bevel gear B：
（1）
Wherein、、、It is outer cone gear B, internal bevel gear B, outer cone gear A, the internal bevel gear A number of teeth respectively,
For the rotating speed of planet carrier,For internal bevel gear B rotating speed,For internal bevel gear A rotating speed, by formula（1）Understand internal bevel gear B
Be reversion and internal bevel gear A be rotate forward, limited because internal bevel gear B rotates backward by unilateral bearing, unilateral bearing is played in braking
Bevel gear B effect, at this moment the second motor do not work, i.e.,For 0, at this moment gearratio is
（2）
At this moment it can realize that large velocity ratio slows down after speed change gear from the driving of the first motor, obtain high pulling torque and be output to difference
Fast device is finally transported to wheel, and the mode of operation of this slow-speed of revolution high torque can be applied needs height in vehicle start, climbing etc.
The operating mode of moment of torsion.
（2）Double-motor power coupling work mode：First motor and the second motor all work, the first motor and the second motor
All it is to rotate forward power output, at this moment rotation speed relation is between planet carrier H, internal bevel gear B and internal bevel gear A：
（3）
At this moment the first motor and the rotating speed of the second motor output pass to differential mechanism after speed change gear by output shaft, then pass
To wheel, double-motor power coupling work mode can apply the operating mode in high vehicle speeds.
（3）Brake energy recovery mode of operation：During braking, in above-mentioned（1）Single electricity can be achieved under single motor drive mode
Machine energy regenerating；In above-mentioned（2）Bi-motor energy regenerating can be achieved under Dual-motors Driving pattern.
The utility model bi-motor couples two level nutating speed change gear, and single motor single can be achieved, and solely work or bi-motor are common
Work structuring is simple, and radial dimension is small, it is possible to achieve big speed reducing ratio, solves in conventional electric automobile and subtracts to reach big
Speed ratio and multiple reducing gears of use, complicated, the problem of radial dimension is big.
In the present embodiment, the outer cone gear A, outer cone gear B, internal bevel gear A and internal bevel gear B are bicircular arcs cone
Gear；The power output shaft 9 is connected with the differential mechanism 10 in Transmission Bridge.
In the present embodiment, the nutational angle when outer cone gear A and outer cone gear B do nutation movement is identical.
In the present embodiment, the planet carrier 2 includes the first bar portion 12 and first being connected with the rotating shaft of the first motor
The second vertical bar portion 13 of bar portion and the 3rd bar portion 14 being connected with the second bar portion, outer cone gear B are installed on the first bar portion
On 12, outer cone gear A is installed in the 3rd bar portion 14, the rotating shaft core line of the first bar portion and the 3rd bar portion and the first motor 1 it
Between angle it is identical, to realize that outer cone gear A is identical with the nutational angle of outer cone gear B.
Above-listed preferred embodiment, the purpose of this utility model, technical scheme and advantage are further described,
It should be understood that and the foregoing is only preferred embodiment of the present utility model, it is all not to limit the utility model
Within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., this practicality should be included in
Within new protection domain.
Claims (3)
1. a kind of bi-motor couples two level nutating speed change gear, it is characterised in that：Including the planet by the first motor-driven rotation
Frame, the outer cone gear A and outer cone gear B that nutation movement is carried out with the rotation of planet carrier are arranged with the planet carrier；Also include
The internal bevel gear A engaged with outer cone gear A and the internal bevel gear B, the internal bevel gear A that are meshed with outer cone gear B with it is dynamic
Power output shaft is connected, and the internal bevel gear B is installed in the rotating shaft of the second motor, and list is also equipped with the rotating shaft of the second motor
To bearing.
2. bi-motor according to claim 1 couples two level nutating speed change gear, it is characterised in that：The outer cone gear A,
Outer cone gear B, internal bevel gear A and internal bevel gear B are bi-arc bevel gear；The power output shaft and the differential in Transmission Bridge
Device is connected.
3. bi-motor according to claim 1 couples two level nutating speed change gear, it is characterised in that：The outer cone gear A
Nutational angle when nutation movement is done with outer cone gear B is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290153.3U CN206633789U (en) | 2017-03-23 | 2017-03-23 | Bi-motor couples two level nutating speed change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290153.3U CN206633789U (en) | 2017-03-23 | 2017-03-23 | Bi-motor couples two level nutating speed change gear |
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| Publication Number | Publication Date |
|---|---|
| CN206633789U true CN206633789U (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720290153.3U Active CN206633789U (en) | 2017-03-23 | 2017-03-23 | Bi-motor couples two level nutating speed change gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828065A (en) * | 2017-03-23 | 2017-06-13 | 福州大学 | Bi-motor couples two grades of nutating speed change gears and its method of work |
-
2017
- 2017-03-23 CN CN201720290153.3U patent/CN206633789U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828065A (en) * | 2017-03-23 | 2017-06-13 | 福州大学 | Bi-motor couples two grades of nutating speed change gears and its method of work |
| CN106828065B (en) * | 2017-03-23 | 2023-04-25 | 福州大学 | Dual-motor coupling two-stage nutation speed change device and working method thereof |
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