CN202261134U - Outer rotor switch magnetic-resistance traction drive unit - Google Patents
Outer rotor switch magnetic-resistance traction drive unit Download PDFInfo
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- CN202261134U CN202261134U CN2011203979133U CN201120397913U CN202261134U CN 202261134 U CN202261134 U CN 202261134U CN 2011203979133 U CN2011203979133 U CN 2011203979133U CN 201120397913 U CN201120397913 U CN 201120397913U CN 202261134 U CN202261134 U CN 202261134U
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Abstract
The utility model relates to an outer rotor switch magnetic-resistance traction drive unit, and solves the problems of influence on the operation effect of the tractor and the like in the prior art. The outer rotor switch magnetic-resistance traction drive unit comprises a traction drive unit driven by a switch magnetic-resistance speed regulating motor, a brake and a rotor-position sensor. The technical key points are as follows: the rotor of the switch magnetic-resistance speed regulating motor is composed of a rotor core and a rotor spider fixed on the main shaft, and is assembled outside the stator; the stator is composed of a base and a stator core with a winding, and the stator core and the rotor core are respectively formed by laminating thin magnetoconductive materials; the inner race of the rotor is provided with 24 poles formed by 24 grooves; the outer race of the stator is provided with 18 poles formed by 18 grooves, a centralized coil is wound on each pole of the stator, and the 18 coils constitute a three-phase stator winding; and the stator and the rotor constitute a doubly salient structure. The utility model has the advantages of compact structure and reasonable design. Compared with the permanent-magnet outer rotor synchronous tractor, the utility model is easy to produce and manufacture, free of maintenance and simple to control, and also has the advantages of simple technique, low cost and small size.
Description
Technical field
The utility model relates to a kind of elevator traction drive unit, particularly a kind of outer rotor switched magnetic resistance traction drive unit that is applicable to that no machine room and small room elevator traction drive.This device can be applied to all occasions that need the low-speed direct driving operation.
Background technology
All the time, the worm and gear traction machine is because have characteristics such as gearratio is big, stable drive, the consistent first-selection that is known as elevator drive mechanism of quilt in elevator industry.Development along with urban construction; The emergence of more and more skyscrapers; People have higher requirement to the specifications and characteristics of lift product, and force urges the has been arranged technical development of lift facility is so constantly pour into market such as new products such as machine-roomless lift, small room elevators.In order to satisfy the supporting demand of these new products, must have characteristics such as volume is littler, efficient energy-saving, low speed high torque as the Drive Structure of elevator power source.And traditional worm and gear traction machine generally adopts high-speed electric expreess locomotive to drive worm reduction box, and gives traction sheave transmission of torque, and the worm reduction box noise is big, mechanical efficiency is low, volume is big, but also needs the intermittent oiling maintenance, is unfavorable for energy-conserving and environment-protective.In recent years, gearless permanent-magnet synchronous traction machine had obtained practical application as technology advanced in the world, and it has structurally cancelled worm reduction box; Be electromechanical; Especially with after vector control technology combines, it is had by the characteristic of low speed to the permanent torque output of high speed, can satisfy the requirement of elevator drive; Improved the transmission efficiency of system greatly; Reduce the entire system volume, and make drive system, become elevator traction machine of new generation improving aspect the operations such as vibration, noise and low-speed stability.Existing most of at present gearless permanent-magnet synchronous traction machine replaces the worm and gear traction machine.
Through retrieval; The relevant in recent years document that directly drives the external rotor synchro traction machine has: Chinese patent number is in the technical scheme of 01113256.6 " directly driving synchronous dragger with Nd-Fe-B permanent magnetic rotor "; A kind of multipole outer-rotor structure is disclosed; The yoke of external rotor is both as the magnetic circuit that is configured to motor of salient pole magnet steel, also as the fixed support of traction sheave, simultaneously when outage external rotor also directly as braked wheel.The salient pole magnet steel that the inner surface of external rotor mounts adopts high performance Nd-Fe-Bo permanent magnet material.Its advantage is structurally to have cancelled heavy geared system, makes it compact conformation, realizes directly driving, and has satisfied the new demand of modem elevator.The weak point of its existence is:
1, directly drives the external rotor synchro traction machine and can not eliminate that permanent magnetic material demagnetizes in the complete machine running, magnet loss phenomenon under the condition of high temperature,, very easily cause driving, bring injury in various degree for the elevator ride personnel in case above-mentioned situation takes place.
2, the external rotor inner surface is installed high performance permanent magnetic material, because permanent magnetic material itself has magnetic force, need overcome the effect of magnetive attraction in the installation process; Even if the back is installed permanent magnetic material is magnetized, can avoid magnetive attraction interaction phenomenon in the installation process, but need special-purpose magnetizing equipment.
3, adopt the fixedly method of permanent magnetic material of surface mount mode, because the existence of related components machining tolerance can cause permanent magnetic material structurally can not accomplish to be uniformly distributed with fully, promptly rotor magnetic pole is not uniformly distributed with, and finally influences the operational effect of traction machine.
4, permanent magnetic material belongs to rare earth resources, and its cost of raw material grows with each passing day at present, thereby causes the complete machine production cost increasingly high.
5, the control system cost that matches is higher relatively.
In recent years, the application of switched reluctance machines and development have obtained tangible progress, successfully are applied to fields such as electric motor car driving, universal industrial, household electrical appliance and textile machine, and power bracket is from 10W to 5MW, and maximal rate is up to 100000 r/min.But because there is the deficiency of aspects such as torque pulsation is big, noise is big in it; So elevator traction transmission relatively, there is certain difference in the requirement aspect runnabilities such as vibration, noise and low-speed stability; Therefore, the structure of existing switched reluctance machines can't directly apply to the elevator traction transmission.
The utility model content
The purpose of the utility model provides a kind of outer rotor switched magnetic resistance traction drive unit; Solved permanent magnetic material easy demagnetization, loss of excitation under the condition of high temperature that prior art exists, cost is high, influences the problems such as operational effect of traction machine; Its compact conformation, reasonable in design; The switched reluctance machines starting torque is big, efficient is high except that keeping, operate steadily, the safe and reliable advantage, compare no permanent magnet with the permanent-magnetic outer rotor synchro traction machine; Have manufacture easily, technology is simple, cost is low, volume is little, non-maintaining, control characteristic of simple.
The technical scheme that the utility model adopted is: this outer rotor switched magnetic resistance traction drive unit comprises traction drive unit, brake and the rotor-position sensor that adopts switched reluctance variable speed machine to drive, and its technical essential is: said switched reluctance variable speed machine by rotor core be fixed on the rotor set that the rotor field spider on the main shaft forms and be contained in the stator outside; Rotor core is overrided to form by slim permeability magnetic material, and the rotor inner ring is provided with 24 utmost points that 24 grooves form; Rotor field spider is simultaneously as braked wheel, and periphery has, and traction sheave protruding, groove is fixed on the rotor field spider, and support is formed stator with the stator core of band winding, and stator, rotor pass through bearings; Stator core is overrided to form by slim permeability magnetic material, and the stator outer ring is provided with 18 utmost points that 18 grooves form, and each of stator is wound with centralized coil on extremely, and 18 coils are formed the threephase stator winding jointly; Stator and rotor constitute the biconvex electrode structure; The rotor-position sensor of realizing rotor position detection is assembled in spindle nose.
The said stator core that is overrided to form by slim permeability magnetic material adopts the straight trough structure.
The said rotor core that is overrided to form by slim permeability magnetic material adopts flume structure, and the skewed slot scope is 0.5 ~ 1.5 rotor pole.
Advantage and the good effect that the utlity model has are: because the utility model adopts outer rotor switched magneto resistance speed-regulating motor to drive as main; Stator, rotor core are overrided to form by slim permeability magnetic material; Stator and rotor constitute the biconvex electrode structure, are magnetic resistance character so made full use of the torque that outer rotor switched magneto resistance speed-regulating motor had." magnetic resistance minimum principle " followed in its operation in principle, and promptly magnetic flux is always closed along the minimum path of magnetic resistance, because of the magnetic field distortion produces the tangential magnetic pull.Therefore, when rotor with salient pole and stator salient poles dislocation, air gap is big, magnetic resistance is big; In case the energising of magnetic pole of the stator winding will form the protruding magnetic pull of rotor, and air gap is diminished---the magnetic circuit magnetic resistance diminishes.Meanwhile, with the power-up sequence of driving switch, can form continuous rotating moment by certain logical relation switching magnetic pole of the stator winding.Compare with the permanent-magnetic outer rotor synchro traction machine; No permanent magnet; Have manufacture easily, technology is simple, cost is low, volume is little, non-maintaining, control characteristic of simple, has solved the permanent magnetic material that prior art exists and under the condition of high temperature, has been prone to demagnetization, loss of excitation; Cost is high, influences the problems such as operational effect of traction machine.Because of the rotor field spider of external rotor simultaneously as braked wheel, traction sheave is fixed on the rotor field spider of external rotor; Protruding, groove on the traction sheave both can drive hoist ropes, also can drive drawing belt, so its compact conformation, reasonable in design has kept that the switched reluctance machines starting torque is big, efficient is high, operates steadily, safe and reliable advantage.The speed-regulating function of outer rotor switched magneto resistance speed-regulating motor cooperates realization jointly by rotor-position sensor, power inverter and controller.Wherein, rotor-position sensor is realized the rotor position detection function, is installed on spindle nose.Through changing the power-up sequence of threephase stator winding, drive the running of drag device forward and backward, thereby realize the lift car uplink and downlink.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the structural representation of second kind of mode of braking;
Fig. 4 is stator, the rotor punching structural representation of the utility model;
Fig. 5 is outer rotor switched magneto resistance speed-regulating machine operation principle sketch.
Sequence number explanation among the figure: 1 stator core, 2 supports, 3 rotor cores, 4 rotor field spiders, two electromagnetic brake, 6 traction sheaves, 7 bearings, 8 rotor-position sensors, 9 main shafts, 10 brake arms, 11 screws, 12 brake blocks, 13 springs, 14 bolts, 15 square electromagnetic brakes, 16 armature, 17 brake blocks, 18 supports, 19 rotor punchings, 20 stator punchings of pushing away of 5 drum-types.
Embodiment
Specify the concrete structure and the operation principle of the utility model according to Fig. 1～5.This outer rotor switched magnetic resistance traction drive unit comprises parts such as adopting the motor-driven traction drive unit of outer rotor switched magneto resistance speed-regulating, brake and rotor-position sensor 8.The structure of wherein outer rotor switched magneto resistance speed-regulating motor is following: by rotor core 3 be fixed on the rotor set that the rotor field spider 4 on the main shaft 9 forms and be contained in the stator outside.Rotor core 3 is overrided to form by slim permeability magnetic material, and rotor core 3 adopts flume structure, and the skewed slot scope is 0.5 ~ 1.5 rotor pole, to weaken torque pulsation, reduces noise.The rotor inner ring is provided with 24 utmost points that 24 grooves form; Rotor field spider 4 is simultaneously as braked wheel, has traction sheave 6 protruding, groove to be fixed on the rotor field spider 4 through screw 11 by the periphery of spheroidal graphite cast-iron manufacturing.Support 2 is formed stator with the stator core that assembles the band winding in support 2 through key, between the stator core 1 of being with winding and support 2, is rotor, and stator, rotor support through bearing 7, guarantees that gap and running are steady.Stator core 1 is overrided to form by slim permeability magnetic material, and stator core 1 adopts the straight trough structure, and stator adopts concentrates winding construction.The stator outer ring is provided with 18 utmost points that 18 grooves form, and each of stator is wound with centralized coil on extremely, and 18 coils are formed the threephase stator winding jointly.Stator and rotor constitute the biconvex electrode structure.Realize that the rotor-position sensor 8 of rotor position detection is assembled in the end of main shaft 9, be connected with control system, realize the rotor position detection function through cable.
The drum-type of the first kind of mode of braking that adopts in the present embodiment is two to be pushed away electromagnetic brake 5 and is installed between two brake arms 10 of support 2 tops.Be respectively arranged with the brake arm 10 that has brake block 12 in the both sides of support 2; Push away under electromagnetic brake 5 power failure states in that drum-type is two; Effect through spring 13 pressure contacts on the braking wheel face of rotor field spider 4 brake block 12 on the brake arm 10 identically, constitutes reliable braking system.
The structure of the second kind of mode of braking that adopts in the present embodiment is as shown in Figure 3; Wherein two square electromagnetic brakes 15 are fixed in support 18 both sides through bolt 14; Under square electromagnetic brake 15 power failure states; Through being installed in the effect of the inner spring pressure of square electromagnetic brake 15, the brake block 17 that is fixed as one with armature 16 is contacted on the braking wheel face of rotor field spider 4 identically, constitute reliable braking system.
The stator that the utility model adopts, the structure of rotor punching are as shown in Figure 4.Wherein 19 is rotor punching, and 20 is stator punching.
Outer rotor switched magneto resistance speed-regulating machine operation principle is as shown in Figure 5, with the power-up sequence of driving switch by certain logical relation switching magnetic pole of the stator winding, can form continuous rotating moment.If order is given A1-A2-B1-B2-C1-C2-A1 ... Phase winding energising V, rotor promptly can be against the excitation order with rotations continuously counterclockwise.Otherwise, be A1-A2-C1-C2-B1-B2-A1 if change phase winding energising phase sequence ..., rotor is rotated in a clockwise direction.If change the size of phase current I, then can change the size of motor torque, and then can change motor speed.If when rotor pole leaves stator poles, switch on, the electromagnetic torque that is produced is opposite with the rotor direction of rotation, is brake torque.Hence one can see that, changes the operating state of the power-up sequence of phase winding, the size of phase current etc. simply through controller, just can change operating states such as the turning to of motor, torque, rotating speed, braking.Thereby realize driving the running of drag device forward and backward, realize the lift car uplink and downlink.
Claims (3)
1. outer rotor switched magnetic resistance traction drive unit; Comprise the traction drive unit, brake and the rotor-position sensor that adopt switched reluctance variable speed machine to drive, it is characterized in that: said switched reluctance variable speed machine by rotor core be fixed on the rotor set that the rotor field spider on the main shaft forms and be contained in the stator outside; Rotor core is overrided to form by slim permeability magnetic material, and the rotor inner ring is provided with 24 utmost points that 24 grooves form; Rotor field spider is simultaneously as braked wheel, and periphery has, and traction sheave protruding, groove is fixed on the rotor field spider, and support is formed stator with the stator core of band winding, and stator, rotor pass through bearings; Stator core is overrided to form by slim permeability magnetic material, and the stator outer ring is provided with 18 utmost points that 18 grooves form, and each of stator is wound with centralized coil on extremely, and 18 coils are formed the threephase stator winding jointly; Stator and rotor constitute the biconvex electrode structure; The rotor-position sensor of realizing rotor position detection is assembled in spindle nose.
2. a kind of outer rotor switched magnetic resistance traction drive unit according to claim 1 is characterized in that: the said stator core that is overrided to form by slim permeability magnetic material adopts the straight trough structure.
3. a kind of outer rotor switched magnetic resistance traction drive unit according to claim 1 is characterized in that: the said rotor core that is overrided to form by slim permeability magnetic material adopts flume structure, and the skewed slot scope is 0.5 ~ 1.5 rotor pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203979133U CN202261134U (en) | 2011-10-19 | 2011-10-19 | Outer rotor switch magnetic-resistance traction drive unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203979133U CN202261134U (en) | 2011-10-19 | 2011-10-19 | Outer rotor switch magnetic-resistance traction drive unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202261134U true CN202261134U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203979133U Expired - Fee Related CN202261134U (en) | 2011-10-19 | 2011-10-19 | Outer rotor switch magnetic-resistance traction drive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202261134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367141A (en) * | 2011-10-19 | 2012-03-07 | 沈阳博林特电梯股份有限公司 | Outer rotor switch magnetic resistance action drive device |
| CN106899097A (en) * | 2017-03-10 | 2017-06-27 | 东莞市京橙电机科技有限公司 | For the stator mounting structure of vehicle using motor central driving motor |
-
2011
- 2011-10-19 CN CN2011203979133U patent/CN202261134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367141A (en) * | 2011-10-19 | 2012-03-07 | 沈阳博林特电梯股份有限公司 | Outer rotor switch magnetic resistance action drive device |
| CN106899097A (en) * | 2017-03-10 | 2017-06-27 | 东莞市京橙电机科技有限公司 | For the stator mounting structure of vehicle using motor central driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENYANG BRILLIANT ELEVATOR GROUP CO., LTD. Free format text: FORMER NAME: SHENYANG BRILLIANT ELEVATOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27 Patentee after: SHENYANG BRILLIANT ELEVATOR CO., LTD. Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27 Patentee before: Shenyang Brilliant Elevator Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 110027, No. 27, development road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning Patentee after: SHENYANG YUANDA INTELLECTUAL INDUSTRY GROUP CO., LTD. Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27 Patentee before: SHENYANG BRILLIANT ELEVATOR CO., LTD. |
|
| 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: 20120530 Termination date: 20201019 |