CN206517232U - A kind of high torque (HT) wide range speed control electric drive system - Google Patents
A kind of high torque (HT) wide range speed control electric drive system Download PDFInfo
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- CN206517232U CN206517232U CN201720120407.7U CN201720120407U CN206517232U CN 206517232 U CN206517232 U CN 206517232U CN 201720120407 U CN201720120407 U CN 201720120407U CN 206517232 U CN206517232 U CN 206517232U
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- motor
- electric drive
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- speed
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Abstract
The utility model belongs to motor correlative technology field, the utility model discloses a kind of high torque (HT) wide range speed control electric drive system, including the first motor, second motor and planetary transmission system, the planetary transmission system includes sun gear, it is fixed in the sun wheel shaft of sun gear, the sun gear is connected with some planetary gears for being driven by it rotating, the planetary gear is rotatably arranged on planet carrier, the planet carrier is connected with planet wheel spindle, the planetary gear is externally connected with the gear ring that it can be driven to rotate, the gear ring is connected with gear ring axle, the first rotor of first motor is fixed in the gear ring axle and the gear ring axle can be driven to rotate, second rotor of second motor is fixed in the sun wheel shaft and the sun wheel shaft can be driven to rotate.The utility model can realize that the deceleration to existing electric drive system increases square or speedup subtracts square, can effectively realize the lifting of electric drive system torque density and the expansion of speed adjustable range by said structure.
Description
Technical field
The utility model is related to motor correlative technology field, more particularly to a kind of high torque (HT) wide range speed control electric drive system.
Background technology
Existing motor and the integrated case of planetary transmission system are all reductor system, include the electricity of two sets of same models
Machine and planetary gear transmission system, wherein motor single rotor output torque are T1, maximum speed is n1, i.e. electric drive system
Output torque is 2T to the maximum1, highest output speed is n1.Above-mentioned reductor system can preferably realize driving, but it is suitable
For low speed high torque situation, it is impossible to which the bigger torque of realization or rotating speed, i.e. motor torque density are relatively low, and speed adjustable range is narrower.
Utility model content
The purpose of this utility model is to provide a kind of high torque (HT) wide range speed control electric drive system, to solve existing reductor system
The torque density of presence is relatively low, the problem of speed adjustable range is narrower.
For up to this purpose, the utility model uses following technical scheme：
A kind of high torque (HT) wide range speed control electric drive system, including the first motor, the second motor and planetary transmission system, institute
Stating planetary transmission system includes sun gear, is fixed in the sun wheel shaft of sun gear, the sun gear, which is connected with, to be driven by it
Some planetary gears rotated, the planetary gear is rotatably arranged on planet carrier, and the planet carrier is connected with planet wheel spindle, the row
Star-wheel is externally connected with the gear ring that it can be driven to rotate, and the gear ring is connected with gear ring axle, and the first rotor of first motor is consolidated
It is connected to the gear ring axle and the gear ring axle can be driven to rotate, the second rotor of second motor is fixed in the sun wheel shaft
And the sun wheel shaft can be driven to rotate.
Preferably, when the electric drive system slow down and increases square, first motor is in running order and exports
Rotating speed nr, second motor is in non-working condition, the rotating speed of the planet wheel spindleWherein prFor institute
State the permanent magnet number of pole-pairs or the number of teeth of gear ring, psFor the permanent magnet number of pole-pairs or the number of teeth of the sun gear.
Preferably, when the electric drive system slow down and increases square, first motor is in non-working condition, described
Second motor is in running order and output speed ns, the rotating speed of the planet wheel spindleWherein prFor institute
State the permanent magnet number of pole-pairs or the number of teeth of gear ring, psFor the permanent magnet number of pole-pairs or the number of teeth of the sun gear.
Preferably, when the electric drive system slow down and increases square, first motor is in running order and output turns
Fast nr, the in running order output speed n of the second motors, the rotating speed of the planet wheel spindle AndOrWherein prFor the gear ring
Permanent magnet number of pole-pairs or the number of teeth, psFor the permanent magnet number of pole-pairs or the number of teeth of the sun gear.
Preferably, when electric drive system progress speedup subtracts square, first motor is in running order and exports
Rotating speed nr, second motor is in non-working condition, the rotating speed of the planet wheel spindleIts speed increasing ratioWherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring, psFor the permanent magnet of the sun gear
Number of pole-pairs or the number of teeth,The n1For the specified maximum speed of the first rotor.
Preferably, when electric drive system progress speedup subtracts square, first motor is in non-working condition, described
The in running order output speed n of second motors, the rotating speed of the planet wheel spindleIts speed increasing ratioWherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring, psFor the permanent magnet of the sun gear
Number of pole-pairs or the number of teeth,The n1For bitrochanteric specified maximum speed.
Preferably, the planetary transmission system is permanent magnet planet gear train assembly, the now prTo be described
The permanent magnet number of pole-pairs of gear ring, psFor the permanent magnet number of pole-pairs of the sun gear.
Preferably, the planetary transmission system is mechanical planetary transmission system, now prFor the tooth
The number of teeth of circle, psFor the number of teeth of the sun gear.
Preferably, the first rotor and the second rotor set up separately in the both sides of the planetary transmission system.
Preferably, the first rotor and bitrochanteric permanent magnet are magnetized using Halbach type arrays.
The utility model can realize that the deceleration to existing electric drive system increases square or speedup subtracts square by said structure,
The lifting of electric drive system torque density and the expansion of speed adjustable range can be effectively realized.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of the utility model high torque (HT) wide range speed control electric drive system.
In figure：
1st, sun gear；2nd, sun wheel shaft；3rd, planetary gear；4th, planet carrier；5th, planet wheel spindle；6th, gear ring；7th, gear ring axle；8th,
One rotor；9th, the second rotor.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
The utility model provides a kind of high torque (HT) wide range speed control electric drive system, as shown in figure 1, the electric drive system includes the first electricity
Machine, the second motor and planetary transmission system, wherein above-mentioned planetary transmission system includes sun gear 1, are fixed in too
The sun wheel shaft 2 of sun wheel 1, the sun gear 1 is connected with some planetary gears 3 for being driven by it rotating, and above-mentioned some planetary gears 3 are rotated
Set in planet carrier 4, the planet carrier 4 is connected with planet wheel spindle 5, the gear ring that it can be driven to rotate is externally connected with planetary gear 3
6, the gear ring 6 is connected with gear ring axle 7, and the first rotor 8 of above-mentioned first motor is fixed in gear ring axle 7 and gear ring axle 7 can be driven to revolve
Turn, the second rotor 9 of the second motor is fixed in sun wheel shaft 2 and sun wheel shaft 2 can be driven to rotate.Above-mentioned the first rotor 8 and
Two rotors 9 set up separately in the both sides of the planetary transmission system.And the permanent magnet of the rotor 9 of the first rotor 8 and second is used
Halbach types array (i.e. Halbach array) magnetizes, to prevent planetary transmission system from causing shadow to rotor magnetic field
Ring.
In the present embodiment, above-mentioned planetary transmission system meets below equation：
(pr+ps)nc=nrpr+nsps, wherein：
prFor the permanent magnet number of pole-pairs or the number of teeth of gear ring 6；
psFor the permanent magnet number of pole-pairs or the number of teeth of sun gear 1；
nrFor the rotating speed of gear ring axle 7；
nsFor the rotating speed of sun wheel shaft 2；
ncFor the rotating speed of planet wheel spindle 5.
By the connection of above-mentioned first motor and the second motor and above-mentioned planetary transmission system, the electricity can be achieved and drives
The deceleration increment or speedup of system subtract square.
Specifically, when needing electric drive system to provide high pulling torque, that is, when deceleration increasing square is carried out to electric drive system, it can divide
For following three kinds of situations：
The first：First electric motor starting is at working condition, now the first motor output speeds are nr, by second
Motor, which shuts down, is at non-working condition (i.e. its rotating speed is 0), in that case, (pr+ps)nc=nrpr+ 0, also
It is the rotating speed of planet wheel spindle 5 in the case of this kindNow the output speed of electric drive system reduces, and output turns
Square can then increase, that is, realize the deceleration increasing square of electric drive system.
Second：First motor is shut down and is at non-working condition (i.e. its rotating speed is 0), the second motor is opened
Dynamic to be at working condition, now the second motor output speeds are ns, in that case, (pr+ps)nc=nsps+ 0, also
It is the rotating speed of planet wheel spindle 5 in the case of this kindNow the output speed of electric drive system reduces, and output turns
Square can equally increase, that is, realize the deceleration increasing square of electric drive system.
The third：First motor and the second motor are started simultaneously, now the output speed of the first motor is nr, the second electricity
The output speed of machine is ns, in that case, according to formula (pr+ps)nc=nrpr+nsps, the rotating speed of above-mentioned planet wheel spindle 5As long as now ensureingOrI.e.
Can be slowed down increasing square.Specification is needed, works as satisfactionWhen, planet wheel spindle 5 and gear ring can be achieved
The direction of rotation identical of axle 7, which is slowed down, increases square；Work as satisfactionWhen, planet wheel spindle 5 and the sun can be achieved
The direction of rotation identical of wheel shaft 2, which is slowed down, increases square.
When needing electric drive system to export high rotating speed, that is, when subtracting square to electric drive system progress speedup, it can be divided into following
Two kinds of situations：
The first：First electric motor starting is at working condition, now output speed is nr, the second motor is stopped
Operating is at non-working condition (i.e. its rotating speed is 0), in that case, (pr+ps)nc=nrpr+ 0, that is, this kind of feelings
The rotating speed of condition lower planet wheel shaft 5As long as now ensureing speed increasing ratio(whereinn1For the specified maximum speed of the first rotor 8), you can realize that the speedup of the electric drive system subtracts square.
Second：First motor is shut down and is at non-working condition (i.e. its rotating speed is 0), the second motor is opened
Dynamic to be at working condition, now the second motor output speeds are ns, in that case, (pr+ps)nc=nsps+ 0, also
It is the rotating speed of planet wheel spindle 5 in the case of this kindIt now need to only meet speed increasing ratio
(whereinn1For the specified maximum speed of the second rotor 9), you can realize that the deceleration of the electric drive system increases square.
In the present embodiment, above-mentioned planetary transmission system can be permanent magnet planet gear train assembly, now above-mentioned
prFor the permanent magnet number of pole-pairs of gear ring 6, psFor the permanent magnet number of pole-pairs of sun gear 1.
It is understood that above-mentioned planetary transmission system can also be mechanical planetary transmission system, now
prFor the number of teeth of gear ring 6, psFor the number of teeth of sun gear 1.
The utility model can be effectively realized and existing electric drive system is subtracted by above-mentioned high torque (HT) wide range speed control electric drive system
Speed increases square or speedup subtracts square, can effectively realize the lifting of electric drive system torque density and the expansion of speed adjustable range.
Obviously, above-described embodiment of the present utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.All any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., should be included in
Within the utility model scope of the claims.
Claims (10)
1. a kind of high torque (HT) wide range speed control electric drive system, it is characterised in that passed including the first motor, the second motor and planetary gear
Dynamic system, the planetary transmission system includes sun gear (1), is fixed in the sun wheel shaft (2) of sun gear (1), it is described too
Sun wheel (1) is connected with some planetary gears (3) for being driven by it rotating, and the planetary gear (3) is rotatably arranged on planet carrier (4),
The planet carrier (4) is connected with planet wheel spindle (5), and the planetary gear (3) is externally connected with the gear ring (6) that it can be driven to rotate, institute
State gear ring (6) and be connected with gear ring axle (7), the first rotor (8) of first motor is fixed in the gear ring axle (7) and can driven
Gear ring axle (7) rotation, the second rotor (9) of second motor is fixed in the sun wheel shaft (2) and can driven described
Sun wheel shaft (2) rotates.
2. high torque (HT) wide range speed control electric drive system according to claim 1, it is characterised in that subtracted in the electric drive system
When speed increases square, first motor is in running order and output speed nr, second motor is in non-working condition, described
The rotating speed of planet wheel spindle (5)Wherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring (6), psFor
The permanent magnet number of pole-pairs or the number of teeth of the sun gear (1).
3. high torque (HT) wide range speed control electric drive system according to claim 1, it is characterised in that subtracted in the electric drive system
When speed increases square, first motor is in non-working condition, and second motor is in running order and output speed ns, it is described
The rotating speed of planet wheel spindle (5)Wherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring (6), psFor
The permanent magnet number of pole-pairs or the number of teeth of the sun gear (1).
4. high torque (HT) wide range speed control electric drive system according to claim 1, it is characterised in that subtracted in the electric drive system
When speed increases square, first motor is in running order and output speed nr, the in running order output turn of the second motor
Fast ns, the rotating speed of the planet wheel spindle (5)And
OrWherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring (6), psFor the sun
Take turns the permanent magnet number of pole-pairs or the number of teeth of (1).
5. high torque (HT) wide range speed control electric drive system according to claim 1, it is characterised in that increased in the electric drive system
When speed subtracts square, first motor is in running order and output speed nr, second motor is in non-working condition, described
The rotating speed of planet wheel spindle (5)Its speed increasing ratioWherein prFor the gear ring
(6) permanent magnet number of pole-pairs or the number of teeth, psFor the permanent magnet number of pole-pairs or the number of teeth of the sun gear (1),The n1For
The specified maximum speed of the first rotor (8).
6. high torque (HT) wide range speed control electric drive system according to claim 1, it is characterised in that increased in the electric drive system
When speed subtracts square, first motor is in non-working condition, the in running order output speed n of the second motors, the row
The rotating speed of spider gear shaft (5)Its speed increasing ratioWherein prFor the gear ring (6)
Permanent magnet number of pole-pairs or the number of teeth, psFor the permanent magnet number of pole-pairs or the number of teeth of the sun gear (1),The n1For second
The specified maximum speed of rotor (9).
7. according to any described high torque (HT) wide range speed control electric drive systems of claim 2-6, it is characterised in that the planetary gear is passed
Dynamic system is permanent magnet planet gear train assembly, now the prFor the permanent magnet number of pole-pairs of the gear ring (6), psFor it is described too
The permanent magnet number of pole-pairs of sun wheel (1).
8. according to any described high torque (HT) wide range speed control electric drive systems of claim 2-6, it is characterised in that the planetary gear is passed
Dynamic system is mechanical planetary transmission system, now prFor the number of teeth of the gear ring (6), psFor the tooth of the sun gear (1)
Number.
9. high torque (HT) wide range speed control electric drive system according to claim 1, it is characterised in that the first rotor (8) and
Two rotors (9) set up separately in the both sides of the planetary transmission system.
10. high torque (HT) wide range speed control electric drive system according to claim 1, it is characterised in that the first rotor (8) and
The permanent magnet of two rotors (9) is magnetized using Halbach type arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120407.7U CN206517232U (en) | 2017-02-09 | 2017-02-09 | A kind of high torque (HT) wide range speed control electric drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120407.7U CN206517232U (en) | 2017-02-09 | 2017-02-09 | A kind of high torque (HT) wide range speed control electric drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517232U true CN206517232U (en) | 2017-09-22 |
Family
ID=59867498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720120407.7U Expired - Fee Related CN206517232U (en) | 2017-02-09 | 2017-02-09 | A kind of high torque (HT) wide range speed control electric drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517232U (en) |
-
2017
- 2017-02-09 CN CN201720120407.7U patent/CN206517232U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20190209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |