CN206878583U - Speed capable of automatic changing and the rotor of torque - Google Patents
Speed capable of automatic changing and the rotor of torque Download PDFInfo
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- CN206878583U CN206878583U CN201720876032.7U CN201720876032U CN206878583U CN 206878583 U CN206878583 U CN 206878583U CN 201720876032 U CN201720876032 U CN 201720876032U CN 206878583 U CN206878583 U CN 206878583U
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- rotor
- torque
- pole piece
- supporting body
- alternating expression
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Abstract
The utility model discloses a kind of speed capable of automatic changing and the rotor of torque, Rotor Assembly includes motor shaft and the fixed rotor, rotor and the end cap that are adjacently positioned successively along motor shaft axial line, and the surface of fixed rotor and rotor is respectively around the alternating expression pole piece that itself to be circumferentially with arrangement mode consistent；The angle that the alternating expression pole piece on fixed rotor surface circumferentially staggers with the alternating expression pole piece on rotor surface is α；Rotor includes rotary supporting body, and rotary supporting body is set on motor shaft by floating bearing, and rotary supporting body is connected together with end cap by slewing limit part.Rotating speed can be ensured during the utility model low-load, make motor operation in high efficiency range, improve the operational efficiency of vehicle；When loading increase, rotor in time can be rotated with respect to end cap, and adjustment capability of the motor to load is improved on the premise of not additional elevation power.
Description
Technical field
The rotor of a kind of rotor, specifically a kind of speed capable of automatic changing and torque is the utility model is related to,
Belong to field of motor manufacturing.
Background technology
With the progressively enhancing of living standards of the people and environmental consciousness, electric car is gradually popularized and instead of others and rides instead of walk
Instrument.In use, when the operation of empty wagons, the rotating speed of (now load capacity is smaller) common electric machine is slower, at motor for vehicle
In the running status of poor efficiency, the running time between two places is also extended；When loading very big, the power output of motor can be therewith
Heighten to increase the output torque of motor, but in this process, rotating speed can decline with the increase of power output, now
Because the extension for (now motor working efficiency is relatively low) time of overloading is easy to make motor seriously generate heat or even damage, electricity is reduced
The service life of machine, the reliability and stability for reducing electric car parts.
The content of the invention
In view of the above-mentioned problems of the prior art, the purpose of this utility model be to provide one kind can be whole according to electric car
The loading condition of car changes speed and torque automatically, makes motor power output more reasonable, operation can be improved in low-load
Efficiency, speed is improved to reach the purpose of saving run time；It can avoid that current of electric is excessive, temperature rise in high capacity
Height, improve safe to use and the speed capable of automatic changing of stability and the rotor of torque.
To achieve the above object, the technical solution adopted in the utility model is：A kind of speed capable of automatic changing and torque
Rotor, including Rotor Assembly, the Rotor Assembly include motor shaft and adjacent successively along motor shaft axial line
Fixed rotor, rotor and the end cap of arrangement, fixed rotor is identical with rotor diameter, and the fixed rotor and rotation
Respectively around the consistent alternating expression pole piece of arrangement mode itself is circumferentially with, alternating expression pole piece was included along week on the surface of rotor
To multiple the N poles and S poles being disposed on successively on rotor outer ring；The alternating expression pole piece and rotor on fixed rotor surface
The angle that the alternating expression pole piece on surface circumferentially staggers is α；The rotor includes rotary supporting body, and rotary supporting body is led to
Cross floating bearing to be set on motor shaft, and rotary supporting body is linked together with end cap by slewing limit part.
Preferably, the slewing limit part includes pin and compression spring, and the pin is from the storage tank one on end cap
Hold through and insert rotary supporting body, the compression spring is placed in storage tank, and one end is stuck in storage tank one end, other end top
Firmly pin.
Further, positioning push pedal is provided between compression spring and pin, positioning push pedal is placed in stopper slot；The positioning
One side surface of push pedal is vertically provided with locating shaft, and compression spring is enclosed on locating shaft and withstands positioning push pedal, positions the another of push pedal
Side is towards pin.
Preferably, boss is provided between stopper slot and storage tank, and the width of stopper slot is more than the width of storage tank.
Preferably, storage tank length direction is consistent with the gyratory directions of rotary supporting body.
Preferably, the alternating expression pole piece on fixed rotor surface and the alternating expression pole piece on rotor surface are circumferentially wrong
The angle [alpha] opened is 15 °.
Preferably, pin and compression spring are provided with two groups, and end cap is symmetricly set on centered on motor shaft and is supported with rotation
Between body.
Preferably, the rotary supporting body includes rotation support outer shroud and rotation support inner ring, rotation support outer shroud and rotation
Turn support inner ring to be fixed together by the strip groove and male cooperation parallel with motor shaft.
Preferably, the floating bearing is provided with two, is symmetrically arranged at along the length direction of motor shaft in rotary supporting body
Surface.
Rotating speed can be ensured during the utility model low-load, motor operation is improved the operation of vehicle in high efficiency range
Efficiency, simultaneously because improving speed, save run time；When loading increase, due to motor casing upper fixed line circle magnetic field
Power changes so that rotor in time can rotate with respect to end cap, be turned round so as to quickly improve the output of motor
Square, adjustment capability of the motor to load is improved on the premise of not additional elevation power, it also avoid that current of electric mistake occurs
Greatly, the higher situation of temperature rise, vehicular electric machine power output is more reasonable, improve the reliabilities of electro-tricycle key components and parts with
And the service life of vehicle.Overall structure is simple, greatlys save use cost, when slewing limit component malfunction or damage
When, it is not necessary to rotor is disassembled, service work can be completed at end cap.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 explosive view；
Fig. 3 is the schematic diagram that the utility model is arranged in motor；
Fig. 4 is rotor and the schematic diagram of fixed rotor installation；
In figure, 1, electric machine casing, 2, lead, 10, Rotor Assembly, 11, rotor, 111, rotation support outer shroud,
111a. is raised, and 112, rotation support inner ring, 112a. grooves, 113, bearing, 114. bottom plates, 12, fixed rotor, 13. end caps,
131. storage tank, 132. stopper slots, 20, motor shaft, 30, alternating expression pole piece, 41. pins, 42. compression springs, 43. positioning push away
Plate, 44. locating shafts.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As illustrated, a kind of speed capable of automatic changing and the rotor of torque, including Rotor Assembly 10, the electricity
Machine rotor assembly 10 includes motor shaft 20 and the fixed rotor 12, the rotor 11 that are adjacently positioned successively along the axial line of motor shaft 20
With end cap 13, fixed rotor 12 is identical with the diameter of rotor 11, and the surface of the fixed rotor 12 and rotor 11 point
Itself Huan Rao not be circumferentially with the consistent alternating expression pole piece 30 of arrangement mode, alternating expression pole piece 30 include circumferentially successively between
Every multiple the N poles and S poles being arranged on rotor outer ring；The alternating expression pole piece 30 on the surface of fixed rotor 12 and the table of rotor 11
The angle that the alternating expression pole piece 30 in face circumferentially staggers is α；The rotor 11 includes rotary supporting body, rotary supporting body
It is set in by floating bearing 113 on motor shaft 20, rotor 11 is provided with bottom plate 114 towards the side of fixed rotor 12, rotation
Turn supporter to link together by slewing limit part with end cap 13.
Slewing limit part is used to ensure rotor stability of rotation, prevents the excessive influence of the rotational angle of rotor 11 from making
With effect, torque spring can be generally used.Preferably, the slewing limit part includes pin 41 and compression spring 42, institute
State pin 41 to pass through from one end of storage tank 131 on end cap 13 and insert rotary supporting body, the compression spring 42 is placed in accommodating
In groove 131, and one end is stuck in the one end of storage tank 131, and the other end withstands pin 41.When rotor 11 rotates, pin can be passed through
41 forces, compress compression spring 42, until the screen resilience of compression spring 42 produces with fixed magnetic field to alternating expression pole piece 30
Active force it is equal when stop.
Further, positioning push pedal 43 is provided between compression spring 42 and pin 41, positioning push pedal 43 is placed in stopper slot 132
In；One side surface of the positioning push pedal 43 is vertically provided with locating shaft 44, and compression spring 42, which is enclosed on locating shaft 44 and withstood, determines
Position push pedal 43, the opposite side of push pedal 43 is positioned towards pin 41.Compression spring 42, which is enclosed on locating shaft 44, can avoid from accommodating
The favorite outer abjection of groove 131, positioning push pedal 43 increase the contact area between the one end of compression spring 42 and pin 41, ensure pin
41 can smoothly promote compression spring 42 from one end.
Preferably, boss is provided between stopper slot 132 and storage tank 131, and the width of stopper slot 132 is more than storage tank
131 width.When rotary supporting body rotation, by pin 41 and positioning push pedal 43 promote compression spring 42 to positioning push pedal 43 with
When boss contacts, positioning push pedal 43 can be limited by boss and moved, so as to prevent rotary supporting body rotation excessive.
Preferably, in order to ensure that compression spring 42 can timely respond to, improve sensitivity level and effect that device automatically adjusts
Rate, the length direction of storage tank 131 are consistent with the gyratory directions of rotary supporting body.When rotary supporting body rotates, pin 41 can be straight
Connect from the one end of compression spring 42 and apply vertical pressure to it, it is quickly compressed, so as to adjust α angles, Bu Huilang in time
Take unnecessary component.
Angle [alpha] is too whard to control greatly, too small not reach the purpose automatically adjusted, therefore the surface of fixed rotor of the present invention 12
The span for the angle [alpha] that alternating expression pole piece 30 and the alternating expression pole piece 30 on the surface of rotor 11 circumferentially stagger exists
13°-17°.Through many experiments room and on-the-spot test, when α is 15 °, it can both ensure to make during low-load motor operation efficient
Section, it is also ensured that can steadily increase with the increase torque of load, reached best practical application effect.
Preferably, pin 41 and compression spring 42 are provided with two groups, be symmetricly set on centered on motor shaft 20 end cap 13 with
Between rotary supporting body.Set two groups of centrosymmetric slewing limit parts make it that plant running is more reliable and more stable, extend
Service life, avoid the trouble that often maintenance is changed.
Preferably, the rotary supporting body includes rotation support outer shroud 111 and rotation support inner ring 112, and rotation support is outer
Ring 111 and rotation support inner ring 112 are coordinated by the strip groove 112a parallel with motor shaft 20 and raised 111a is fixed on one
Rise.Rotation support outer shroud 111 and rotation support inner ring 112 can with quick separating and assembling, when rotor 11 breaks down,
Only need to disassemble rotor 11 after detection, internal single parts are changed in optionally maintenance, easy to maintenance, realize and quickly repair
Manage, be cost-effective.
Preferably, the floating bearing 113 is provided with two, and rotary supporting body is symmetrically arranged at along the length direction of motor shaft 20
Inner surface.Two floating bearings 113 add the stability of rotor 11 so that operate steadily.
The utility model operating principle is as follows：
Rotor of the present utility model is installed in electric machine casing 1, wound motor rotor on the madial wall of electric machine casing 1
Assembly 10 sets fixed coil, the fixed coil of the inner side of electric machine casing 1 is powered to motor power supply by lead 2, fixed coil
The alternating expression pole piece 30 in caused magnetic field and the surface of Rotor Assembly 10 interacts, and rotates Rotor Assembly 10,
Drive motor axle 20 rotates Rotor Assembly 10 simultaneously.Because the alternating expression pole piece 30 on the surface of fixed rotor 12 turns with rotation
The alternating expression pole piece 30 on sub 11 surfaces circumferentially staggers an angle [alpha], the alternating expression pole piece 30 on the surface of fixed rotor 12 and rotation
Walk around sub 11 surfaces alternating expression pole piece 30 can respectively with fixed coil caused by electromagnetic field interact,
At the same time due to the alternating expression pole piece 30 and the alternating expression magnetic on the surface of rotor 11 on the surface of fixed rotor 12
Pole piece 30 circumferentially staggers an angle [alpha], and caused magnetic field can cancel out each other a part respectively for fixed rotor 12 and rotor 11,
Reduce the overall magnetic field intensity of Rotor Assembly 10, equivalent to the computational length La for shortening rotor magnet, and root
According to the magnet computational length La formula of formula one：In formula：La is the computational length of rotor magnet；aδ
For pole embrace；A is electromagnetic load；BδFor air gap flux density；DaFor rotor diameter；For efficiency；P is number of pole-pairs, and n is rotating speed；kD
For constant,
In the case where other correlation computations coefficients are constant, n is inversely proportional with La, i.e., when the overall magnetic of Rotor Assembly 10
Field intensity reduces so that when the computational length La of rotor magnet shortens, and motor speed n increases, improved efficiency motor speed
The corresponding power output for improving motor of increase, make motor operation in high efficiency range.
When vehicle, which loads, to be increased, resistance can be applied on motor shaft 20 caused by load, in order to overcome resistance, motor
Power meeting automatic adjustment height, making to increase by the electric current of the inner side fixed coil of electric machine casing 1, fixed coil produces bigger magnetic field,
Until magnetic field can overcome the support force of compression spring 42 to make 11 turns of rotor with active force caused by alternating expression pole piece 30
It is dynamic, while drive pin 41 to compress compression spring 42 by positioning push pedal 43.Rotor 11 rotates necessarily relative to end cap 13
Angle after, the alternating expression pole piece 30 on the surface of fixed rotor 12 and the alternating expression pole piece 30 on the surface of rotor 11 is staggered
Angle diminish, the overall magnetic field intensity of Rotor Assembly 10 is improved, so as to equivalent to the calculating for making rotor magnet
Length La is elongated, and according to formula one above, motor speed n can be reduced accordingly, now, because power output is constant, according to motor
The formula two of operating：Power output=rotating speed * torsion/9.55, motor torsion can synchronously get a promotion with output torque.
With load constantly increase, the degree that compression spring 42 is compressed constantly increases so that rotor 11 is with respect to end cap
The angles of 13 rotations constantly increase, and the overall magnetic field intensity of Rotor Assembly 10 is more and more stronger, and La is increasing, motor it is defeated
Go out torque therewith to increase, until it is α to be rotated up to angle, the now alternating expression pole piece 30 on the surface of fixed rotor 12 and rotation turns
The angle that the alternating expression pole piece 30 on sub 11 surfaces circumferentially staggers is 0 °, and both are consistent completely, reach maximum output
Torque.
Claims (9)
1. a kind of speed capable of automatic changing and the rotor of torque, including Rotor Assembly (10), it is characterised in that described
Rotor Assembly (10) include motor shaft (20) and be adjacently positioned successively along motor shaft (20) axial line fixed rotor (12),
Rotor (11) and end cap (13), fixed rotor (12) is identical with rotor (11) diameter, and the fixed rotor (12)
With the surface of rotor (11) respectively around the alternating expression pole piece (30) that itself to be circumferentially with arrangement mode consistent, alternating expression
Pole piece (30) includes multiple the N poles and S poles being circumferentially disposed on successively on rotor outer ring；Fixed rotor (12) surface
The angle that alternating expression pole piece (30) and the alternating expression pole piece (30) on rotor (11) surface circumferentially stagger is α；It is described
Rotor (11) includes rotary supporting body, and rotary supporting body is set on motor shaft (20) by floating bearing (113), and revolves
Turn supporter to link together by slewing limit part with end cap (13).
2. speed capable of automatic changing according to claim 1 and the rotor of torque, it is characterised in that the revolution limit
Position part includes pin (41) and compression spring (42), and the pin (41) is worn from storage tank (131) one end on end cap (13)
Cross and insert rotary supporting body, the compression spring (42) is placed in storage tank (131), and one end is stuck in storage tank (131) one
End, the other end withstand pin (41).
3. speed capable of automatic changing according to claim 2 and the rotor of torque, it is characterised in that compression spring
(42) positioning push pedal (43) is provided between pin (41), positioning push pedal (43) is placed in stopper slot (132)；The positioning push pedal
(43) a side surface is vertically provided with locating shaft (44), and compression spring (42) is enclosed on locating shaft (44) and withstands positioning push pedal
(43) opposite side of push pedal (43), is positioned towards pin (41).
4. speed capable of automatic changing according to claim 3 and the rotor of torque, it is characterised in that stopper slot
(132) boss is provided between storage tank (131), and the width of stopper slot (132) is more than the width of storage tank (131).
5. speed capable of automatic changing according to claim 2 and the rotor of torque, it is characterised in that storage tank
(131) length direction is consistent with the gyratory directions of rotary supporting body.
6. speed capable of automatic changing according to claim 1 and the rotor of torque, it is characterised in that fixed rotor
(12) angle that the alternating expression pole piece (30) on surface and the alternating expression pole piece (30) on rotor (11) surface circumferentially stagger
It is 15 ° to spend α.
7. speed capable of automatic changing according to claim 2 and the rotor of torque, it is characterised in that pin (41) and
Compression spring (42) is provided with two groups, and end cap (13) is symmetricly set on centered on motor shaft (20) between rotary supporting body.
8. speed capable of automatic changing according to claim 1 and the rotor of torque, it is characterised in that the rotation branch
Support body includes rotation support outer shroud (111) and rotation support inner ring (112), rotation support outer shroud (111) and rotation support inner ring
(112) coordinated by the strip groove (112a) parallel with motor shaft (20) and raised (111a) and be fixed together.
9. speed capable of automatic changing according to claim 1 and the rotor of torque, it is characterised in that the gyroaxis
(113) are held provided with two, the inner surface of rotary supporting body is symmetrically arranged at along the length direction of motor shaft (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876032.7U CN206878583U (en) | 2017-07-19 | 2017-07-19 | Speed capable of automatic changing and the rotor of torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876032.7U CN206878583U (en) | 2017-07-19 | 2017-07-19 | Speed capable of automatic changing and the rotor of torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878583U true CN206878583U (en) | 2018-01-12 |
Family
ID=61330565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720876032.7U Active CN206878583U (en) | 2017-07-19 | 2017-07-19 | Speed capable of automatic changing and the rotor of torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868033A (en) * | 2019-11-23 | 2020-03-06 | 梅菁 | Permanent magnet motor for inhibiting short circuit fault |
-
2017
- 2017-07-19 CN CN201720876032.7U patent/CN206878583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868033A (en) * | 2019-11-23 | 2020-03-06 | 梅菁 | Permanent magnet motor for inhibiting short circuit fault |
| CN110868033B (en) * | 2019-11-23 | 2021-08-17 | 梅菁 | Permanent magnet motor for inhibiting short circuit fault |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 221000 east of tunshidagou and west of tunqing Road, Xuzhou Industrial Park, Jiangsu Province Patentee after: Jiangsu Jinpeng Group Co.,Ltd. Address before: 221000 North Xuzhou Avenue, Xuzhou Industrial Park, Xuzhou City, Jiangsu Province Patentee before: JIANGSU JINPENG VEHICLE Co.,Ltd. |