CN101232210B - Novel suspended type permanent magnetism velocity modulation electric engine structure - Google Patents
Novel suspended type permanent magnetism velocity modulation electric engine structure Download PDFInfo
- Publication number
- CN101232210B CN101232210B CN2007100066723A CN200710006672A CN101232210B CN 101232210 B CN101232210 B CN 101232210B CN 2007100066723 A CN2007100066723 A CN 2007100066723A CN 200710006672 A CN200710006672 A CN 200710006672A CN 101232210 B CN101232210 B CN 101232210B
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- motor
- rotor
- bearing
- work machine
- permanent magnetism
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a novel suspended permanent magnet speed regulating motor structure with direct driving instead of conventional belt driving after studying the scheme of how to achieve optimal driving between a novel speed regulating motor and a work machine, which aims to design a novel suspended permanent magnet speed regulating motor compatible to the prior structure without couplings, convenient installation and debugging, good appearance and practical use. The technical scheme of the invention is characterized in that the motor has a short and thick structure, a stator iron core is directly arranged on a pedestal, only one bearing is arranged between a rotor and the pedestal to limit the degree of freedom in radial movement, the rotor is tightly sheathed on an input shaft of the working machine during operation of the motor, and the limitation in other degrees of freedom of the rotor can be achieved by using the shaft and the bearing of the work machine.
Description
Technical field:
The invention belongs to dynamo-electric field, particularly a kind of new design of buncher organization plan, especially a kind of novel suspended type permanent magnetism velocity modulation electric engine structure.
Background technology:
Buncher is more and more in the application of various occasions; Existing variable frequency speed modulation of asynchronous motor system can satisfy general requirement; Use the widest in the buncher field; But system price is expensive, motor is heavy, volume is big, power factor is low, staring torque is little, reaction speed is slow, power consumption is big during underloading, transmission is inconvenient, speed adjustable range is wide inadequately, requires improved hope very urgent.
With technical development, existing several kinds of motor speed regulation systems are used, and a kind of is the brshless DC motor governing system, and a kind of is the permanent-magnet servo motor governing system, and a kind of is switch magnetic bias buncher system, and also having a kind of is that permagnetic synchronous motor adds frequency conversion speed-adjusting system.These several kinds of motors all are magnetoes, and volume is little in light weight, but and the transmission major part between the Work machine (comprising reduction box, gearbox) still adopt belt transmission, minority also has the kind of drive that adopts motor to add shaft coupling.
Bel-drivenn subject matter is:
1, belt friction heating causes transmission efficiency low, and 2, belt creep reduces reaction speed, 3, the belt wearing and tearing bring the scaling bits to pollute, 4, belt loosens, tighten needs often to regulate, 5, belt scraps replacing and will spend more money, 6, belt twines and cause potential safety hazard.
Come directly to drive with shaft coupling; Can above problem solve, but how to fix and install motor? Adopt which kind of shaft coupling? How to guarantee two axialities of conventional motor with the rotation and the Work machine main shaft of upper bearing (metal)? Does operation to Work machine hinder? Can or can not influence the whole moulding in repacking back?
These problems are all perplexing the designers of every profession and trade always.
Summary of the invention:
The present invention is on the basis of existing permanent magnetism velocity modulation electric engine, and electric machine structure and motor mount scheme are improved, and particularly the belt transmission between motor and Work machine main shaft has been done improvement; Cancelled the traditional belt transmission; Change direct driving into, its objective is that design a kind of and existing machinery structure are compatible mutually, do not want shaft coupling; Install, debug easily handsome in appearance, practical novel suspended type permanent magnetism velocity modulation electric engine structure.
Technical scheme of the present invention is achieved in that a kind of novel suspended type permanent magnetism velocity modulation electric engine structure; Form by support, rotor, stator, permanent magnet, bearing etc.; It is characterized in that: motor is a tubbiness shape structure, and stator core is directly installed on the support, has only a bearing to limit it between rotor and support and moves radially the degree of freedom; Rotor suit when motor uses, be fastened on the power shaft of Work machine, utilize the axle of Work machine, other degree of freedom that bearing is accomplished rotor to limit.
Between general work machine (like washing machine, sewing machine, light industry and machinery, lathe etc.) and motor, adopt belt transmission mostly, its power shaft is a belt shaft, and tubbiness shape motor axial dimension short (suitable with the belt pulley size) does not influence machine outward appearance and moulding.The bearing capacity of belt shaft is big, and it is also lighter than hanging belt to hang a magneto.The magneto air gap is big; Just less demanding originally to installing, but bearing has limited its degree of freedom, reduces the motor bearings number; Just eliminated most interference; Motor keeps a bearing and makes coarse positioning, can carry through rotor, hang stator, makes that again the motor installing and locating is more much easier than not have bearing.After installing and locating was accomplished, motor stator both can directly hang use, also can be fastened on the machine casing, reduced the burden of motor stator gravity to belt shaft.The cancellation shaft coupling not only reduces cost, simplifies adjustment is installed, and has also dwindled the integral installation size.
Said novel suspended type permanent magnetism velocity modulation electric engine structure, the characteristic of its further technical scheme is: the support installed surface between motor and Work machine casing is not done fine finishining, adopts the location and installation of floating, and is applied to low speed, middling speed, high speed field.
So not only help reducing cut, reduce manufacturing cost, also avoided the requirement to the transformation of Work machine casing equally, system compatibility is fairly good.
Said novel suspended type permanent magnetism velocity modulation electric engine structure is characterized in that: the support installed surface between motor and Work machine casing requires to do fine finishining, adopts accurate location and installation, is applied at a high speed and the ultrahigh speed transmission field.
The present invention is reasonable in design, and is simple in structure, cost is low, compatibility good, realization is easy, Installation and Debugging are convenient, transmission efficiency is high, long service life.The present invention especially on products such as sewing machine, washing machine, food machinery, light industry and machinery, chemical machinery, woodworking machinery, conveying machinery, package packing machine, lathe, has very big practical value.
What is worth mentioning is; Be applied in machine industry; Compare with the electric main shaft scheme of lathe: help shortening main axis length (raising system rigidity); Help design, Boulez, lubricated, the heat radiation of precision bearing, help machinery plant and electrical machinery plant and can make the most of the advantage respectively, share out the work and help one another, also help maintenance of products, debugging, improvement, perfect.
Description of drawings:
Below in conjunction with concrete legend the present invention is further specified for example:
The cup-shaped permanent magnet motor structure of a kind of novel suspended type electric sewing machine of Fig. 1
Wherein
1-screw 2-elastic cushion block 3-sewing arbor 4-key
5-rotor 6-circlip 7-bearing 8-elastic spring
9-stator 10-stator core 11-rotor core 12-sewing machine casing
13-handwheel 14-ventilation hole 15-fan blade
Embodiment:
Embodiment: the cup-shaped permanent magnet motor structure of a kind of novel suspended type electric sewing machine
With reference to Fig. 1, its basic structure and common external rotor electric machine are similar, are made up of stator (9), stator core (10), rotor (5), rotor core or yoke (11), permanent magnet, bearing (7) etc.The mechanical structure aspect; With maximum not being both of conventional motors: rotor does not have axle, and axle is to use sewing arbor (3), and bearing has only one; It also is the bearing of having used sewing machine; Therefore motor does not guarantee to turn round well before being installed to sewing machine, possibly need the special tooling of a motor debugging, detection usefulness.
The moulding of rotor (5) is special, and the sleeve part is arranged, and can be inserted in sewing arbor (3), comes transmitting torque with key (4); Be handled easily, handwheel (13) is also made in the right outer end of rotor; For heat radiation considers that the rotor Right Inboard also is designed with ventilation hole (14), fan blade (15).The flexible back-up ring of bearing between stator and rotor (7) (6), elastic spring (8) are realized axial limiting.
Between stator (9) and sewing machine casing (12), there are screw (1), cushion fast (2) to realize float location, rigid attachment.During installation, stir handwheel, observe the stator and rotor slit and change, the degree of tightness of adjustment screw reaches the centering purpose.Owing to adopt this centering method, so cut can be saved in the composition surface of sewing machine casing and stator; The interior cover and the sewing machine between centers of rotor are interfered for exempting at this moment, do not do axial limiting.
This scheme is applicable to other relevant industries too.
Claims (3)
1. novel suspended type permanent magnetism velocity modulation electric engine structure; Form by support, rotor, stator, bearing; It is characterized in that: motor is a tubbiness shape structure, and stator core is directly installed on the support, has only a bearing to limit it between rotor and support and moves radially the degree of freedom; Rotor suit when motor uses, be fastened on the power shaft of Work machine, utilize the power shaft of Work machine, other degree of freedom restriction that bearing is accomplished rotor.
2. according to the said novel suspended type permanent magnetism velocity modulation electric engine structure of claim 1, it is characterized in that: the support installed surface between motor and Work machine casing is not done fine finishining, adopts the location and installation of floating, and is applied to low speed, middling speed, high speed field.
3. according to the said novel suspended type permanent magnetism velocity modulation electric engine structure of claim 1, it is characterized in that: the support installed surface between motor and Work machine casing requires to do fine finishining, adopts accurate location and installation, is applied at a high speed and the ultrahigh speed transmission field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100066723A CN101232210B (en) | 2007-01-25 | 2007-01-25 | Novel suspended type permanent magnetism velocity modulation electric engine structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100066723A CN101232210B (en) | 2007-01-25 | 2007-01-25 | Novel suspended type permanent magnetism velocity modulation electric engine structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101232210A CN101232210A (en) | 2008-07-30 |
| CN101232210B true CN101232210B (en) | 2012-06-27 |
Family
ID=39898457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100066723A Expired - Fee Related CN101232210B (en) | 2007-01-25 | 2007-01-25 | Novel suspended type permanent magnetism velocity modulation electric engine structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101232210B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020201957A1 (en) * | 2020-02-17 | 2021-08-19 | Scanlab Gmbh | Galvanometer drive with backlash-free bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0174883A2 (en) * | 1984-08-01 | 1986-03-19 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Electric motor, in particular for a motor ventilator set |
| CN2515860Y (en) * | 2001-12-20 | 2002-10-09 | 章丘海尔电机有限公司 | Electric motor with single side bearing hanging support |
| CN2637453Y (en) * | 2003-08-15 | 2004-09-01 | 中信重型机械公司 | New type mine hoist |
-
2007
- 2007-01-25 CN CN2007100066723A patent/CN101232210B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0174883A2 (en) * | 1984-08-01 | 1986-03-19 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Electric motor, in particular for a motor ventilator set |
| CN2515860Y (en) * | 2001-12-20 | 2002-10-09 | 章丘海尔电机有限公司 | Electric motor with single side bearing hanging support |
| CN2637453Y (en) * | 2003-08-15 | 2004-09-01 | 中信重型机械公司 | New type mine hoist |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101232210A (en) | 2008-07-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20120627 Termination date: 20130125 |