CN104539070A - Outer rotor tractor for elevator - Google Patents
Outer rotor tractor for elevator Download PDFInfo
- Publication number
- CN104539070A CN104539070A CN201410845990.9A CN201410845990A CN104539070A CN 104539070 A CN104539070 A CN 104539070A CN 201410845990 A CN201410845990 A CN 201410845990A CN 104539070 A CN104539070 A CN 104539070A
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- Prior art keywords
- stator core
- support
- outer rotor
- elevator
- tractor
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- Cage And Drive Apparatuses For Elevators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention belongs to the technical field of tractor mechanical equipment, and particularly relates to an outer rotor tractor for an elevator. The outer rotor tractor for the elevator comprises a brake, a machine base 10, a stator iron core, a rotor magnet yoke and multiple permanent magnets fixed on the inner side of the rotor magnet yoke, and is characterized in that the machine base 10 and the stator iron core 20 are connected through a step 11; the step is composed of at least three convex surfaces 111 and three concave surfaces 112 which are distributed at equal intervals; the step 11 is fixed on the machine base 10. The outer rotor tractor for the elevator has the advantages of being high in assembly efficiency and low in cost.
Description
Technical field
The invention belongs to traction machine mechanical equipment technical field, be specifically related to a kind of elevator outer rotor tractor.
Background technology
The mode that the stator core in motor of elevator permanent magnet synchronous traction machine with outer rotor adopts endoporus fixing, be fixed on motor bed-plate, the face that support coordinates with stator core is continuous Vehicle Processing face.Usually two kinds of modes are mainly contained.
The first is that stator core and support adopt interference fit, and stator core is pressed in support without preheating direct press by stator core.Press-in end stator pressing plate is located, and prevents from moving laterally vertically.
The second is that stator core and support adopt interference fit, stator is preheated to uniform temperature (generally lower than 120 DEG C) and is pressed in support by stator core with press.Press-in end stator pressing plate is located, and prevents from moving laterally vertically.
The shortcoming of first kind of way is: stator core in motor is pressed into support when matching allowance is larger without heating, stator core endoporus can be made to produce moderate finite deformation, serious meeting damages the surface insulation layer of enamel wire coil in stator core slot, causing the resistance to drops of stator core or puncture, losing efficacy to making traction machine.
The second way preferably resolves the shortcoming of aforesaid way, and the nip of stator core and motor bed-plate is also large compared with first kind of way.
The weak point that first two mode exists jointly is: because permanent magnetic synchronous traction machine is direct driving motor, and feature is the large torque of the slow-speed of revolution, and when coordinating the stiction produced to be less than the electromagnetism torsional moment of maximum output, generation is rotated by stator core on motor bed-plate.Can not rotate for preventing traction machine stator core under larger torque output state, usually adopt in two ways: one is hole machined keyway in stator core, semicircle keyway also processed by corresponding motor bed-plate, before press-fiting, flat key is put into, play along the circumferential direction fixing effect, the method can reliably be fixed, but processing cost is high, stator keyway need draw or Linear cut with broaching machine, and support keyway needs Milling Process, two kinds of working (machining) efficiencies are all low, and cost is high; Another kind of mode first stator core is pressed into motor bed-plate, join auger shell pit within it, deeply reach in stator core, then screw in holding screw, play fastening effect, because holding screw generally at least wants two. and join brill after assembling both needing, majority is electric drill hand-manipulated, and working strength is large, pierce the bad control of the degree of depth, when holing dark, the coil of stator core being injured, scrapping to making stator core entirety.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides that a kind of efficiency of assembling is high, cost is low, a kind of elevator outer rotor tractor of stator core long service life.
In order to realize the object of the invention, by the following technical solutions:
A kind of elevator outer rotor tractor, comprise brake, support, stator core, rotor yoke and be fixed on the multiple permanent magnets inside rotor yoke, it is characterized in that, described support is connected by step with stator core, described step is made up of at least 3 convex surfaces and 3 concave surfaces, distribute in uniform intervals, described step is fixed on support.
As preferably, described convex surface and concave surface are respectively 6; More preferred, described convex surface is machined surface; Or more preferred, described concave surface is non-machined surface.
In sum, beneficial effect of the present invention is:
The permanent magnet that elevator outer rotor tractor comprises brake, support, stator core, rotor yoke and is fixed on inside rotor yoke, support is connected by step with stator core, and step is distributed by least 3 convex surfaces and 3 concave surface uniform intervals.Spaced apart due to convex surface and concave surface, can when not adding flat key and holding screw, can ensure that stator core does not rotate under traction machine exports breakdown torque, thus save the inconvenience that the processing of stator core keyway and support keyway and erecting yard join auger shell pit, reduce stator core and scrap risk, make stator core long service life, and this operation efficiency of assembling also has a distinct increment.
During assembling, be placed on support, be slowly pressed into support with press by the stator core of preheating, stator core endoporus shrinks, and becomes approximate regular polygon hole by original circular hole, greatly adds the ability stoping stator core to rotate on support.Empirical tests, when not adding flat key and holding screw, can ensure that stator core does not rotate under traction machine exports breakdown torque, thus save the inconvenience that the processing of stator core keyway and support keyway and erecting yard join auger shell pit, reduce stator core and scrap risk, this operation efficiency of assembling also has a distinct increment, and reduces cost simultaneously.
Further, step is distributed by 6 convex surfaces and 6 concave surface uniform intervals, stator core endoporus shrinks, approximate positive 12 shape holes, limit are become by original circular hole, greatly add the ability stoping stator core to rotate on support, suitably strengthen by the program magnitude of interference that stator core endoporus coordinates with motor bed-plate step, strengthen nip, strengthen further stop stator core to rotate on support possibility.
Further, in order to better allow stator core and support fix better, the convex surface of step is machined surface, and in order to save process cost more broadly, the concave surface of step is non-machined surface.
Accompanying drawing explanation
Fig. 1,2 is structural representations of the present invention;
Fig. 3 is the cutaway view of Fig. 1 of the present invention;
Fig. 4 is the enlarged diagram that step convex surface coordinates with stator core;
Fig. 5 is the enlarged diagram that step concave surface coordinates with stator core.
Description of symbols: 10-support; 11-step; 111-convex surface; 112-concave surface; 20-stator core.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described, therefore do not limit the present invention among described scope of embodiments.
embodiment 1
Composition graphs 1,3,4,5 is described: elevator outer rotor tractor, the multiple permanent magnets comprising brake, support 10, stator core, rotor yoke and be fixed on inside rotor yoke, described support 10 is connected by step 11 with stator core 20, described step is made up of at least 3 convex surfaces 111 and 3 concave surfaces 112, distribute in uniform intervals, described step 11 is fixed on support 10.
embodiment 2
Composition graphs 2,3,4,5 is described: be with the difference of embodiment 1, and described convex surface 111 and concave surface 112 are respectively 6.
During assembling, the stator core 20 of preheating is placed on support 10, with press by stator core 20 slowly press-in support 10, after all cooling, stator core 20 endoporus shrinks, become approximate just polygon hole by original circular hole, greatly add the ability stoping stator core 20 to rotate on support 10.Empirical tests, when not adding flat key and holding screw, as can be seen from Fig. 4,5, convex surface and stator core close contact compress, concave surface and stator core leave certain space, can ensure that exporting stator core 20 under breakdown torque at traction machine does not rotate, thus save the inconvenience that the processing of stator core 20 keyway and support keyway and erecting yard join auger shell pit, reduce stator core 20 and scrap risk, this operation efficiency of assembling also has a distinct increment.
In order to better allow stator core and support fix, the convex surface 111 of step 11 is machined surface, and in order to save process cost more broadly, the concave surface 112 of step 11 is non-machined surface; Distribute in uniform intervals, coordinate with support when machined surface is the raised area assembling, do not contact with stator core endoporus when non-machined surface is the assembling of recessed (black skin) part.
Claims (4)
1. an elevator outer rotor tractor, the multiple permanent magnets comprising brake, support (10), stator core, rotor yoke and be fixed on inside rotor yoke, it is characterized in that, described support (10) is connected by step (11) with stator core (20), described step is made up of at least 3 convex surfaces (111) and 3 concave surfaces (112), distribute in uniform intervals, described step (11) is fixed on support (10).
2. elevator outer rotor tractor according to claim 1, is characterized in that, described convex surface (111) and concave surface (112) are respectively 6.
3. elevator outer rotor tractor according to claim 1, is characterized in that, described convex surface (111) is machined surface.
4. elevator outer rotor tractor according to claim 1, is characterized in that, described concave surface (112) is non-machined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845990.9A CN104539070A (en) | 2014-12-31 | 2014-12-31 | Outer rotor tractor for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845990.9A CN104539070A (en) | 2014-12-31 | 2014-12-31 | Outer rotor tractor for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104539070A true CN104539070A (en) | 2015-04-22 |
Family
ID=52854558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410845990.9A Pending CN104539070A (en) | 2014-12-31 | 2014-12-31 | Outer rotor tractor for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104539070A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203368164U (en) * | 2013-07-23 | 2013-12-25 | 苏州法奥电梯有限公司 | Anti-rotation structure of traction machine stator with a winding |
| CN203434784U (en) * | 2013-07-08 | 2014-02-12 | 宁波欣达电梯配件厂 | Traction machine |
| CN103928993A (en) * | 2013-01-15 | 2014-07-16 | 日本电产株式会社 | Motor |
| CN203883564U (en) * | 2012-09-26 | 2014-10-15 | 美蓓亚株式会社 | Rotary transformer |
| CN204290525U (en) * | 2014-12-31 | 2015-04-22 | 布劳恩电梯有限公司 | A kind of elevator outer rotor tractor |
-
2014
- 2014-12-31 CN CN201410845990.9A patent/CN104539070A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203883564U (en) * | 2012-09-26 | 2014-10-15 | 美蓓亚株式会社 | Rotary transformer |
| CN103928993A (en) * | 2013-01-15 | 2014-07-16 | 日本电产株式会社 | Motor |
| CN203434784U (en) * | 2013-07-08 | 2014-02-12 | 宁波欣达电梯配件厂 | Traction machine |
| CN203368164U (en) * | 2013-07-23 | 2013-12-25 | 苏州法奥电梯有限公司 | Anti-rotation structure of traction machine stator with a winding |
| CN204290525U (en) * | 2014-12-31 | 2015-04-22 | 布劳恩电梯有限公司 | A kind of elevator outer rotor tractor |
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| PB01 | Publication | ||
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Application publication date: 20150422 |