CN1284780A - Triphase lower-speed synchronous AC motor - Google Patents
Triphase lower-speed synchronous AC motor Download PDFInfo
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- CN1284780A CN1284780A CN 99111438 CN99111438A CN1284780A CN 1284780 A CN1284780 A CN 1284780A CN 99111438 CN99111438 CN 99111438 CN 99111438 A CN99111438 A CN 99111438A CN 1284780 A CN1284780 A CN 1284780A
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- rotor
- stator
- tooth
- core
- triphase
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Abstract
The synchronous motor includes casing, stator iron core, stator winding, rotor, shaft, bearings, composite vibration eliminating pedestal and end caps. The stator iron core has several small teeth; the rotor comprising two, one front and one back, iron cores and one sandwiched permanent magnetic steel has also teeth in equal interval; and the stator winding is one triphase one. When some stator tooth is aligned to one rotor tooth, adjacent stator teeth shift from corresponding rotor teeth in one sixth rotor tooth pitch. The motor can obtain very low rotation speed, has low noise and long service period and is suitable for production in large scale.
Description
The present invention relates to a kind of low-speed synchronous motor, particularly a kind of triphase AC lower-speed synchronous motor belongs to the synchronous motor class.
Slow-speed motor is being applied in increasing scope, and commonly common electric machine is realized low-speed running by deceleration device, and is big but this system exists running noise, poor reliability, and problem such as break down easily.
At present, a kind of single phase alternating current (A.C.) low-speed synchronous motor is to utilize the stator and the rotor tooth effect of grooves to cause the principle work that air-gap permeance changes, and realizes the low speed transmission.The weak point of this single-phase slow-speed motor is, for phase shift, must so not only reduce the efficient of whole device at stator axis winding configuration electric capacity and resistance during use, and noise is bigger, and motor power (output) is confined within several hectowatts.
The objective of the invention is to overcome the deficiencies in the prior art and a kind of triphase AC lower-speed synchronous motor device is provided, use three-phase alternating current to be power, do not need to dispose shift capacitor and resistance, its power can be brought up to more than several kilowatts.Compound shock absorbing bearing pedestal (7) is housed on bearing, can reduces or eliminates common frequency vibrations.
The object of the present invention is achieved like this: a kind of triphase AC lower-speed synchronous motor, comprise casing, stator core, stator winding, rotating shaft, bearings at both ends, bearing pedestal and two end cap, it is characterized in that the ring-type stator core that the several piece outer rim has identical uniform 3-6 open slot is housed in the rotating shaft, stator winding is embedded in the stator core vat.Stator winding is the three-phase alternating current winding.
Above-mentioned rotor clips a permanent-magnet steel by front and back two identical iron cores and forms.The surface of rotor all has rotor tooth, and rotor core is three groups, and the teeth groove of adjacent rotor iron core, and 1/3 tooth pitch staggers mutually.
The said stator iron core also is three groups, and the little tooth of stator core inner edge equates that with the tooth pitch of the little tooth of rotor outer rim when little tooth alignd with rotor tooth on certain stator core, the little tooth and the rotor tooth of adjacent stator core all differed 1/6 rotor slot-pitch.
Above-mentioned two ends of rotor is equipped with two bearings, and bearing is contained on the compound shock absorbing bearing pedestal.
Above-mentioned rotor core and stator core are the integral blocks that many silicon steel sheets are formed, and stator winding is arranged in the coil holder groove that insulating material makes.
The open slot of the open slot of above-mentioned rotor outer rim and the stator inner edge certain angle that staggers changes because open slot causes air-gap permeance, and stator winding produces rotating magnetic field.
Rotating speed of motor N=60f/p (f is a supply frequency, and p is the motor number of pole-pairs), general motor number of pole-pairs is 2, and frequency is under the 50HZ, and motor speed is 1500 rev/mins.
The motor speed N that the present invention proposes
Low-60f/p.k (K is a moderating ratio in the formula).
K=Z
2/ Z
2-Z
1, (Z
2Be the number of teeth of rotor openings groove, Z
1The number of teeth for the stator openings groove).
Work as Z
1-48, Z
2=50 o'clock, N
Low=60 rev/mins.
The present invention has the motor of making than prior art and obtains the very slow-speed of revolution, must not dispose capacitance resistance, has improved efficient, and noise is little, and stall does not burn motor, and the life-span is long.Compact conformation is simple, is easy to advantages such as batch process.
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of a kind of embodiment of the present invention.
Fig. 2 is an embodiment of the invention A-A cross-sectional view.
Fig. 3 is an embodiment of the invention B-B cross-sectional view.
With reference to Fig. 1, a kind of triphase AC lower-speed synchronous motor comprises the compound shock absorbing bearing pedestal of casing (1) stator core (2) stator winding (3) rotor (4) rotating shaft (5) bearing (6) (7) two end cap (8), and Fig. 2 and Fig. 3 show A-A, B-B cross-sectional view.
Rotor (4) is by front and back two identical iron cores (4-1), (4-2), clip the ring bodies that a permanent-magnet steel (4-3) is formed, the surface of rotor (4) all has 3-6 rotor tooth (4-4), rotor core is three groups, form by silicon steel sheet, the open slot of adjacent rotor iron core stagger mutually 1/3 tooth pitch, be pressed in the rotating shaft, form three phase places.
The ring bodies that stator core (2) is made up of forward and backward iron core, on the canine tooth (2-1) of stator core (2), have the little tooth (2-2) identical with the rotor core tooth pitch, stator line group (3) row be embedded in the stator vat (2-3), and separate by insulating material, be fixed between the forward and backward stator core.Stator winding also is three groups, and is corresponding with rotor core, forms the three-phase alternating current winding of three phase places.Little tooth (2-2) on certain stator core (3) and rotor tooth (44) are when aliging, and the little tooth (2-2) of adjacent stator core (3) all differs 1/6 rotor tooth tooth pitch with rotor tooth (4-4).
Bearing (6) is equipped with at armature spindle (5) two ends, and bearing (6) is contained in again on the compound shock absorbing bearing pedestal (7), and to reduce or eliminate the vibrations in the running, compound shock absorbing bearing pedestal (7) is to be made of copper base micropore composite powder metallurgy material.
Claims (4)
1, a kind of triphase AC lower-speed synchronous motor, it is characterized in that comprising the compound shock absorbing bearing pedestal of casing (1) stator core (2) stator winding (3) rotor (4) rotating shaft (5) bearing (6) (7) two end cap (8), on the canine tooth (2-1) of stator core (2), have 3～6 little teeth (2-2), stator winding (3) row be embedded in the stator vat (2-3), rotor (4) is by front and back two identical iron cores (4-1), (4-2) clipping a permanent-magnet steel (4-3) forms, the surface of rotor (4) all has 3～6 rotor tooths (4-4), rotor core is three groups, and the open slot of adjacent rotor iron core 1/3 tooth pitch that staggers mutually, the said stator iron core also is three groups.
2,, it is characterized in that stator winding is the three-phase alternating current winding according to the described triphase AC lower-speed synchronous motor of claim 1.
3, according to the described triphase AC lower-speed synchronous motor of claim 1, the little tooth (2-1) that it is characterized in that stator core (2) equates with the tooth pitch of rotor tooth (4-4), little tooth (2-2) on certain stator core (2) and rotor tooth (4-4) are when aliging, and the little tooth (2-2) of adjacent stator core (2) all differs 1/6 rotor slot-pitch with rotor tooth (44).
4,, it is characterized in that bearing (6) is installed on the bearing pedestal (7) of compound shock absorbing according to the described triphase AC lower-speed synchronous motor of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99111438 CN1284780A (en) | 1999-08-16 | 1999-08-16 | Triphase lower-speed synchronous AC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99111438 CN1284780A (en) | 1999-08-16 | 1999-08-16 | Triphase lower-speed synchronous AC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1284780A true CN1284780A (en) | 2001-02-21 |
Family
ID=5275091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99111438 Pending CN1284780A (en) | 1999-08-16 | 1999-08-16 | Triphase lower-speed synchronous AC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1284780A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384062C (en) * | 2003-09-25 | 2008-04-23 | 乐金电子(天津)电器有限公司 | Fixer ring fixture conjunction structure of end bracket for dynamo |
| CN101317313B (en) * | 2005-10-03 | 2011-05-04 | 莱图尔诺技术演练***有限公司 | Top drive drilling system using low-speed direct-driven AC motor, and application thereof |
| CN106505818A (en) * | 2016-11-29 | 2017-03-15 | 大连碧蓝节能环保科技有限公司 | Segmentation phase shift outer rotor permanent magnet motor |
| CN108183562A (en) * | 2016-12-08 | 2018-06-19 | 上海鸣志电器股份有限公司 | A kind of stepper motor |
-
1999
- 1999-08-16 CN CN 99111438 patent/CN1284780A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384062C (en) * | 2003-09-25 | 2008-04-23 | 乐金电子(天津)电器有限公司 | Fixer ring fixture conjunction structure of end bracket for dynamo |
| CN101317313B (en) * | 2005-10-03 | 2011-05-04 | 莱图尔诺技术演练***有限公司 | Top drive drilling system using low-speed direct-driven AC motor, and application thereof |
| CN106505818A (en) * | 2016-11-29 | 2017-03-15 | 大连碧蓝节能环保科技有限公司 | Segmentation phase shift outer rotor permanent magnet motor |
| CN106505818B (en) * | 2016-11-29 | 2019-01-15 | 大连碧蓝节能环保科技有限公司 | It is segmented phase shift outer rotor permanent magnet motor |
| CN108183562A (en) * | 2016-12-08 | 2018-06-19 | 上海鸣志电器股份有限公司 | A kind of stepper motor |
| CN108183562B (en) * | 2016-12-08 | 2023-10-27 | 上海鸣志电器股份有限公司 | Stepping motor |
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| REG | Reference to a national code |
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