CN206878584U - Rotatable motor rotor - Google Patents
Rotatable motor rotor Download PDFInfo
- Publication number
- CN206878584U CN206878584U CN201720876036.5U CN201720876036U CN206878584U CN 206878584 U CN206878584 U CN 206878584U CN 201720876036 U CN201720876036 U CN 201720876036U CN 206878584 U CN206878584 U CN 206878584U
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- China
- Prior art keywords
- supporting body
- rotary supporting
- magnetic shoe
- rotor
- poles magnetic
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Abstract
The utility model discloses a kind of rotatable motor rotor, rotary supporting body center is provided with floating bearing, and floating bearing has two, is symmetrically arranged at the inner surface of rotary supporting body；Rotary supporting body side is vertically provided with pin, and the outer peripheral surface of rotary supporting body is provided with alternating expression pole piece, alternating expression pole piece includes multiple surround and is provided at circumferentially spaced N poles magnetic shoe and S poles magnetic shoe on rotary supporting body outer ring, N poles magnetic shoe or S poles magnetic shoe are all stuck between two adjacent dovetail grooves of rotary supporting body outer ring, the length direction of the dovetail groove and the axis parallel of motor shaft, and expansion positioning hole is provided with dovetail groove.The utility model is simple in construction, and two floating bearings add the stability of rotor；After magnetic shoe is stuck between two adjacent dovetail grooves, pin or bolt pass through expansion positioning hole, you can are stably limited in magnetic shoe between two adjacent dovetail grooves.Only need to change widget after disassembling when going wrong, reduce maintenance cost.
Description
Technical field
A kind of rotor is the utility model is related to, specifically a kind of rotatable motor rotor, belongs to field of motor manufacturing.
Background technology
Electric car is driven by motor, when the operation of empty wagons the rotating speed of (now load capacity is smaller) common electric machine compared with
Slowly, motor is in inefficient running status；When loading very big, the power output of motor can be heightened to increase motor therewith
Output torque, now because the extension of surcharge preloading duration is easy to make motor seriously generate heat or even damage, reduce the use of motor
Life-span, the reliability and stability for reducing electric car parts.Such in order to solve the problems, such as, some adaptively adjust motor
It is developed, it adjusts the size of torque output by the rotation of internal activity rotor, but such rotor is most
It is complicated, easily break down, and due to being Integral design, maintenance is pretty troublesome, in most cases can only integral replacing, directly
Add maintenance and use cost.
The content of the invention
In view of the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of rotatable motor rotor,
It is simple in construction, do not allow easily damaged, and overhaul and safeguard simple and quick, facilitate the replacing of single part, use can be substantially reduced
And maintenance cost.
To achieve the above object, the technical solution adopted in the utility model is：A kind of rotatable motor rotor, including rotation
Supporter, rotary supporting body center are provided with floating bearing, and the floating bearing is provided with two, is symmetrically arranged at the interior of rotary supporting body
Surface；The rotary supporting body side is vertically provided with pin, and the outer peripheral surface of the rotary supporting body is provided with alternating expression pole piece,
Alternating expression pole piece includes multiple around circumferential multiple N poles magnetic shoe and the S poles being disposed on successively on rotary supporting body outer ring
Magnetic shoe, N poles magnetic shoe or S poles magnetic shoe are all stuck between two adjacent dovetail grooves of rotary supporting body outer ring, the dovetail groove
Length direction and motor shaft axis parallel, and in dovetail groove be provided with expansion positioning hole.
Preferably, N poles magnetic shoe and S poles magnetic shoe have 4 groups, are arranged at intervals successively.
Preferably, a diameter of 8-13cm of the rotary supporting body, thickness 4-8cm.
Preferably, floating bearing is ball bearing.
Preferably, pin is provided with two, and rotary supporting body homonymy is symmetricly set on centered on motor shaft.
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.
After the utility model coordinates in motor with fixed rotor, end cap, rotating speed can be ensured in low-load, made
Motor operation improves the operational efficiency of vehicle in high efficiency range；When loading increase, due to motor casing upper fixed line circle magnetic field
Power changes so that rotor can rotate, so as to quickly improve the output torque of motor, in not additional elevation
Adjustment capability of the motor to load is improved on the premise of power, it also avoid that the excessive situation of current of electric, vehicle electrical occurs
Mechanomotive force output is more reasonable.
The utility model is simple in construction, and two floating bearings add the stability of rotor so that operate steadily；Phase
Two adjacent dovetail grooves coordinate for location and installation magnetic shoe, after magnetic shoe is stuck between two adjacent dovetail grooves, pin or bolt
Through expansion positioning hole, you can be stably limited in magnetic shoe between two adjacent dovetail grooves.Only need to disassemble when going wrong
After change widget, it is not necessary to integral replacing, reduce maintenance cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is front view of the present utility model；
Fig. 3 be in Fig. 2 A-A to sectional view；
Fig. 4 is that the utility model matches somebody with somebody the Rotor Assembly schematic diagram being combined into fixed rotor and end cap；
Fig. 5 is Fig. 4 explosive view；
Fig. 6 is the use state figure that Fig. 4 Rotor Assembly is installed in motor；
In figure, 1. electric machine casings, 2. leads, 10. Rotor Assemblies, 11. rotors, 110. rotary supporting bodies,
111. rotation support outer shroud, 111a. is raised, 112. rotation support inner ring, 112a. grooves, 113. floating bearings, 114. bottom plates,
115. dovetail groove, 115a. expansion positioning holes, 12. fixed rotors, 13. end caps, 131. storage tanks, 132. stopper slots, 20. motors
Axle, 30. alternating expression pole pieces, 41. pins, 42. compression springs, 43. positioning push pedals, 44. locating shafts.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As illustrated, a kind of rotatable motor rotor, including rotary supporting body 110, the center of rotary supporting body 110 are provided with back
Rotating shaft holds 113, and the floating bearing 113 is provided with two, is symmetrically arranged at the inner surface of rotary supporting body 110；The rotation support
The side of body 110 is vertically provided with pin 41, and the outer peripheral surface of the rotary supporting body 110 is provided with alternating expression pole piece 30, alternating expression
Pole piece 30 includes multiple around the circumferential multiple N poles magnetic shoe and S poles magnetic being disposed on successively on the outer ring of rotary supporting body 110
Watt, N poles magnetic shoe or S poles magnetic shoe are all stuck between two adjacent dovetail grooves 115 of the outer ring of rotary supporting body 110, the swallow
The length direction of stern notch 115 and the axis parallel of motor shaft 20, and expansion positioning hole 115a is provided with dovetail groove 115.
Preferably, N poles magnetic shoe and S poles magnetic shoe have 4 groups, are arranged at intervals successively.
Preferably, a diameter of 8-13cm of the rotary supporting body 110, thickness 4-8cm, using such size
Properly, coordinating with fixed rotor 12 can quick adjustment angle.
Preferably, in order that rotation is more smooth, the floating bearing 113 is ball bearing.
Preferably, pin 41 is provided with two, and the homonymy of rotary supporting body 110 is symmetricly set on centered on motor shaft 20.If
Put two centrosymmetric pins 41 and make it that plant running is more reliable and more stable, extend service life, avoid frequent maintenance
The trouble of replacing.
Preferably, the rotary supporting body 110 includes rotation support outer shroud 111 and rotation support inner ring 112, rotation support
Outer shroud 111 and rotation support inner ring 112 are coordinated by the strip groove 112a parallel with motor shaft 20 and raised 111a to be fixed on
Together.Rotation support outer shroud 111 and rotation support inner ring 112 can be with quick separatings and assembling, when rotor 11 breaks down
When, only need to disassemble rotor 11 after detection, internal single parts are changed in optionally maintenance, it is easy to maintenance, realize it is fast
Speed is repaired, is cost-effective.
The utility model is installed to one of as follows using embodiment in motor：
After rotary supporting body 110 of the present utility model is loaded onto into alternating expression pole piece 30 electricity is set in as rotor 11
On arbor 20, the side of rotor 11 is provided with end cap 13, and end cap 13 is fixed on motor shaft 20；Bearing pin 41 is passed through on end cap 13
Storage tank 131, compression spring 42 is provided with storage tank 131, the one end of compression spring 42 is stuck in the one end of storage tank 131, other end set
On locating shaft 44 and positioning push pedal 43 is withstood, positioning push pedal 43 is placed in stopper slot 132, and positions the opposite side top of push pedal 43
Firmly pin 41, compression spring 42, which is enclosed on locating shaft 44, can avoid increasing from the favorite outer abjection of storage tank 131, positioning push pedal 43
Contact area between the one end of compression spring 42 and pin 41, ensure that pin 41 can smoothly promote compression spring from one end
42；The opposite side of rotor 11 installs a fixed rotor 12, and rotor 11 is provided with bottom plate towards the side of fixed rotor 12
114, the surface loop of fixed rotor 12 around itself being circumferentially with the alternating expression pole piece 30 consistent with the arrangement mode of rotor 11,
And 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 set circumferentially to stagger
One angle [alpha], angle [alpha] is too whard to control greatly, too small not reach the purpose automatically adjusted, therefore the table of the utility model fixed rotor 12
The span for the angle [alpha] that the alternating expression pole piece 30 in face circumferentially staggers with the alternating expression pole piece 30 on the surface of rotor 11
At 13 ° -17 °.Rotor 11 and fixed rotor 12 form the Rotor Assembly 10 of an entirety, are placed on electric machine casing
In 1, wound motor rotor assembly 10 sets fixed coil on the madial wall of electric machine casing 1, makes motor to motor power supply by lead 2
The fixed coil of the inner side of housing 1 is powered, the alternating expression pole piece in magnetic field caused by fixed coil and the surface of Rotor Assembly 10
30 interactions, make the integral-rotation of Rotor Assembly 10, drive motor axle 20 rotates Rotor Assembly 10 simultaneously.Due to solid
The alternating expression pole piece 30 on the surface of rotor 12 and the alternating expression pole piece 30 on the surface of rotor 11 circumferentially offset angular α,
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 can respectively with fixation
Electromagnetic field interacts caused by coil,
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, until the screen resilience of compression spring 42 and fixation
Magnetic field stops when equal to active force caused by alternating expression pole piece 30.Rotor 11 rotates a certain angle with respect to end cap 13
Afterwards, the angle for making 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 stagger
Diminish, the overall magnetic field intensity of Rotor Assembly 10 is improved, so as to equivalent to the computational length La for making rotor magnet
Elongated, according to formula one above, motor speed n can be reduced accordingly, now, because power output is constant, be operated according to motor
Formula two：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 (6)
1. a kind of rotatable motor rotor, it is characterised in that including rotary supporting body (110), rotary supporting body (110) center is set
There is floating bearing (113), the floating bearing (113) is provided with two, is symmetrically arranged at the inner surface of rotary supporting body (110)；Institute
State rotary supporting body (110) side and be vertically provided with pin (41), the outer peripheral surface of the rotary supporting body (110) is provided with alternating expression
Pole piece (30), alternating expression pole piece (30) include multiple surround and are circumferentially disposed on rotary supporting body (110) outer ring successively
On multiple N poles magnetic shoe and S poles magnetic shoe, it is adjacent that N poles magnetic shoe or S poles magnetic shoe are all stuck in rotary supporting body (110) outer ring
Between two dovetail grooves (115), the length direction of the dovetail groove (115) and the axis parallel of motor shaft (20), and dovetail
Expansion positioning hole (115a) is provided with groove (115).
2. rotatable motor rotor according to claim 1, it is characterised in that N poles magnetic shoe and S poles magnetic shoe have 4 groups,
It is arranged at intervals successively.
3. rotatable motor rotor according to claim 1, it is characterised in that the diameter of the rotary supporting body (110)
For 8-13cm, thickness 4-8cm.
4. rotatable motor rotor according to claim 1, it is characterised in that floating bearing (113) is ball bearing.
5. rotatable motor rotor according to claim 1, it is characterised in that pin (41) is provided with two, with motor shaft
(20) rotary supporting body (110) homonymy is symmetricly set on centered on.
6. rotatable motor rotor according to claim 1, it is characterised in that the rotary supporting body (110) includes rotation
Turn support outer shroud (111) and rotation support inner ring (112), rotation support outer shroud (111) and rotate support inner ring (112) by with
The parallel strip groove (112a) of motor shaft (20) and raised (111a), which coordinate, to be fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876036.5U CN206878584U (en) | 2017-07-19 | 2017-07-19 | Rotatable motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876036.5U CN206878584U (en) | 2017-07-19 | 2017-07-19 | Rotatable motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878584U true CN206878584U (en) | 2018-01-12 |
Family
ID=61330563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720876036.5U Active CN206878584U (en) | 2017-07-19 | 2017-07-19 | Rotatable motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878584U (en) |
-
2017
- 2017-07-19 CN CN201720876036.5U patent/CN206878584U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190520 Address after: 221000 Jinguang Road East, Xuzhou Industrial Park, Xuzhou City, Jiangsu Province Patentee after: Jiangsu golden Motor Technology Co Ltd Address before: 221000 North Xuzhou Avenue, Xuzhou Industrial Park, Xuzhou City, Jiangsu Province Patentee before: Jiangsu Jinpeng Vehicle Co.,Ltd. |