CN206582290U - The high torque (HT) wide range speed control electric drive system integrated with planetary gear - Google Patents
The high torque (HT) wide range speed control electric drive system integrated with planetary gear Download PDFInfo
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- CN206582290U CN206582290U CN201720120410.9U CN201720120410U CN206582290U CN 206582290 U CN206582290 U CN 206582290U CN 201720120410 U CN201720120410 U CN 201720120410U CN 206582290 U CN206582290 U CN 206582290U
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- gear
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- electric drive
- drive system
- planetary
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Abstract
The utility model belongs to motor correlative technology field, the utility model discloses a kind of and integrated high torque (HT) wide range speed control electric drive system of planetary gear, 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 of its rotation of driving, 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 planet wheel spindle and the planet wheel spindle 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 wide tune of the and integrated high torque (HT) of planetary gear
Fast 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 and integrated high torque (HT) wide range speed control electric drive system of planetary gear, to solve
The torque density that certainly existing reductor system is present 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 and integrated high torque (HT) wide range speed control electric drive system of planetary gear, including the first motor, the second motor and row
Star gear train assembly, the planetary transmission system includes sun gear, is fixed in the sun wheel shaft of sun gear, the sun
Wheel is connected with some planetary gears of its rotation of driving, and the planetary gear is rotatably arranged on planet carrier, and 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, and the gear ring is connected with gear ring axle, first electricity
The first rotor of machine is fixed in the gear ring axle and the gear ring axle can be driven to rotate, and the second rotor of second motor is affixed
In the planet wheel spindle and the planet wheel spindle 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 sun wheel shaftIts speed reducing ratioWherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring, psFor the permanent magnet pole of the sun gear
Logarithm or the number of teeth,The n1For the specified maximum speed of the first rotor.
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 nc, the rotating speed of the sun wheel shaftIts speed reducing ratioWherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring, psFor the permanent magnetism of the sun gear
Iron number of pole-pairs or the number of teeth,The n1For bitrochanteric specified maximum speed.
Preferably, when electric drive system progress speedup subtracts square, first motor is in non-working condition, described
Second motor is in running order and output speed nc, the rotating speed of the sun wheel shaftWherein 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 electric drive system progress speedup subtracts square, first motor is in running order and exports
Rotating speed nc, second motor is in running order and output speed nr, and first motor and the second motor direction of rotation phase
Instead, the rotating speed of the sun wheel shaftWherein prPermanent magnet number of pole-pairs for the gear ring or
The number of teeth, psFor the permanent magnet number of pole-pairs or the number of teeth of the sun gear.
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 and the integrated high torque (HT) wide range speed control electric drive system of planetary gear.
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 of its rotation of driving, and above-mentioned some planetary gears 3, which are rotated, to be set
Put in planet carrier 4, the planet carrier 4 is connected with planet wheel spindle 5, the gear ring 6 that it can be driven to rotate be externally connected with planetary gear 3,
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 rotate,
Second rotor 9 of the second motor is fixed in planet wheel spindle 5 and planet wheel spindle 5 can be driven to rotate.Above-mentioned the first rotor 8 and second turn
Son 9 sets 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 two situations：
The first：First electric motor starting is at working condition, now the first motor output speeds are nr, by the second electricity
Machine, which shuts down, is at non-working condition (i.e. its rotating speed is 0), in that case, 0=nrpr+nspsThat is, this kind of feelings
The rotating speed of sun wheel shaft 2 under conditionAs long as now ensureing speed reducing ratio
(whereinn1For the specified maximum speed of the first rotor 8), you can realize that the deceleration of the electric drive system increases square, i.e., electricity drives system
The output speed of system reduces, and output torque can then increase.
Second：First motor is shut down and is at non-working condition (i.e. its rotating speed is 0), the second electric motor starting is made
Its is in running order, and now the second motor output speeds are nc, in that case, (pr+ps)nc=nsps+ 0, that is, this kind of feelings
The rotating speed of sun wheel shaft 2 under conditionAs long as now ensureing speed reducing ratio
(whereinn1For the specified maximum speed of the second rotor 9), the deceleration that the electric drive system equally can be achieved increases square, i.e., electricity drives
The output speed of system reduces, and output torque can then increase.
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：Second electric motor starting is at working condition, now output speed is nc, the first motor is stopped
Operating is at non-working condition (i.e. its rotating speed is 0), in that case, (pr+ps)nc=nsps+ 0, that is, this kind of feelings
The rotating speed of sun wheel shaft 2 under conditionThe now output speed increase of electric drive system, output torque can then subtract
It is small, that is, realize the speedup of electric drive system and subtract square.
Second：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 nc, and first motor and the second motor direction of rotation are on the contrary, in that case, according to formula (pr
+ps)nc=nrpr+nsps, the rotating speed of above-mentioned sun wheel shaft 2The now output of electric drive system
Rotating speed increases, and output torque can then reduce, that is, realizes the speedup of electric drive system and subtract 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 (9)
1. a kind of and integrated high torque (HT) wide range speed control electric drive system of planetary gear, it is characterised in that including the first motor, the second electricity
Machine and planetary transmission system, the planetary transmission system include sun gear (1), are fixed in sun gear (1) too
Positive wheel shaft (2), the sun gear (1) is connected with some planetary gears (3) of its rotation of driving, and the planetary gear (3), which rotates, to be set
In planet carrier (4), the planet carrier (4) is connected with planet wheel spindle (5), and the planetary gear (3), which is externally connected with, can drive its turn
Dynamic gear ring (6), the gear ring (6) is connected with gear ring axle (7), and the first rotor (8) of first motor is fixed in the tooth
Circle axle (7) simultaneously can drive the gear ring axle (7) to rotate, and the second rotor (9) of second motor is fixed in the planet wheel spindle
(5) and can drive the planet wheel spindle (5) rotate.
2. the according to claim 1 and integrated high torque (HT) wide range speed control electric drive system of planetary gear, it is characterised in that in institute
State electric drive system slow down when increasing square, first motor is in running order and output speed nr, at second motor
In non-working condition, the rotating speed of the sun wheel shaft (2)Its speed reducing ratioWherein pr
For 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),The n1For the specified maximum speed of the first rotor (8).
3. the according to claim 1 and integrated high torque (HT) wide range speed control electric drive system of planetary gear, it is characterised in that described
When electric drive system carries out deceleration increasing square, first motor is in non-working condition, and second motor is in running order simultaneously
Output speed nc, the rotating speed of the sun wheel shaft (2)Its speed reducing ratio
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),The n1For the specified maximum speed of the second rotor (9).
4. the according to claim 1 and integrated high torque (HT) wide range speed control electric drive system of planetary gear, it is characterised in that in institute
State electric drive system and carry out speedup when subtracting square, first motor is in non-working condition, and second motor is in running order
And output speed nc, the rotating speed of the sun wheel shaft (2)Wherein prFor the permanent magnet of the gear ring (6)
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).
5. the according to claim 1 and integrated high torque (HT) wide range speed control electric drive system of planetary gear, it is characterised in that in institute
State electric drive system and carry out speedup when subtracting square, first motor is in running order and output speed nr, at second motor
In working condition and output speed nc, and first motor and the second motor direction of rotation are on the contrary, the sun wheel shaft (2)
Rotating speedWherein prFor the permanent magnet number of pole-pairs or the number of teeth of the gear ring (6), psFor it is described too
The permanent magnet number of pole-pairs or the number of teeth of sun wheel (1).
6. according to any described high torque (HT) wide range speed control electric drive systems integrated with planetary gear of claim 2-5, its feature exists
In the planetary transmission system is permanent magnet planet gear train assembly, now the prFor the permanent magnet of the gear ring (6)
Number of pole-pairs, psFor the permanent magnet number of pole-pairs of the sun gear (1).
7. according to any described high torque (HT) wide range speed control electric drive systems integrated with planetary gear of claim 2-5, its feature exists
In the planetary transmission system is mechanical planetary transmission system, now prFor the number of teeth of the gear ring (6), psFor
The number of teeth of the sun gear (1).
8. the according to claim 1 and integrated high torque (HT) wide range speed control electric drive system of planetary gear, it is characterised in that described
The first rotor (8) and the second rotor (9) set up separately in the both sides of the planetary transmission system.
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
The permanent magnet of two rotors (9) is magnetized using Halbach type arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120410.9U CN206582290U (en) | 2017-02-09 | 2017-02-09 | The high torque (HT) wide range speed control electric drive system integrated with planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120410.9U CN206582290U (en) | 2017-02-09 | 2017-02-09 | The high torque (HT) wide range speed control electric drive system integrated with planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582290U true CN206582290U (en) | 2017-10-24 |
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ID=60092181
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720120410.9U Expired - Fee Related CN206582290U (en) | 2017-02-09 | 2017-02-09 | The high torque (HT) wide range speed control electric drive system integrated with planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848354A (en) * | 2019-09-30 | 2020-02-28 | 中北大学 | Transmission method for spaceflight based on adsorption transmission |
-
2017
- 2017-02-09 CN CN201720120410.9U patent/CN206582290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848354A (en) * | 2019-09-30 | 2020-02-28 | 中北大学 | Transmission method for spaceflight based on adsorption transmission |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20180209 |