CN201130877Y - AC low speed synchronous electric motor having shock-absorbing base - Google Patents
AC low speed synchronous electric motor having shock-absorbing base Download PDFInfo
- Publication number
- CN201130877Y CN201130877Y CNU2007201780398U CN200720178039U CN201130877Y CN 201130877 Y CN201130877 Y CN 201130877Y CN U2007201780398 U CNU2007201780398 U CN U2007201780398U CN 200720178039 U CN200720178039 U CN 200720178039U CN 201130877 Y CN201130877 Y CN 201130877Y
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- rotor
- stator
- tooth
- core
- teeth
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Abstract
The utility model relates to an AC low-speed synchronous motor with a shock eliminating support, comprising a housing (1), a stator core (2), a stator winding (3), a rotor (4), a rotating shaft (5), a bearing (6), a combined shock eliminating bearing support (7) and an end cover (8). The AC low-speed synchronous motor is characterized in that a plurality of small teeth are arranged on the stator core (2); the rotor (4) comprises a front iron core, a rear iron core and a permanent magnet steel between the front iron core and the rear iron core; a plurality of rotor teeth with the same teeth pitch are arranged on the surface of the rotor (4); the stator winding adopts three-phase winding; when the small teeth of one stator core are aligned with the rotor teeth, teeth pitch between the small teeth of the adjacent stator iron core and the rotor teeth are all one sixths of the rotor teeth. The AC low-speed synchronous motor has the advantages of extremely low rotational speed of the motor, adoption of the combined shock eliminating bearing support, low noise, long service life and applicability to mass production.
Description
Technical field
The utility model relates to a kind of low-speed synchronous motor, and particularly a kind of AC low speed synchronous electric motor with anti-shocking base belongs to the synchronous motor class.
Background technology
Slow-speed motor is being applied in increasing scope, and common 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.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of AC low speed synchronous electric motor device with anti-shocking base is provided, and uses three-phase alternating current to be power, does not need to dispose shift capacitor and resistance, and 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 purpose of this utility model is achieved in that a kind of AC low speed synchronous electric motor with anti-shocking base, comprise casing, stator core, stator winding, rotating shaft, bearings at both ends, bearing pedestal and 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 utility model proposes is 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 is low=and 60 rev/mins.
The utility model 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.
Description of drawings
Fig. 1 is the schematic diagram of a kind of embodiment of the present utility model.
Fig. 2 is the utility model embodiment A-A cross-sectional view.
Fig. 3 is the utility model Embodiment B-B cross-sectional view.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified
With reference to Fig. 1, a kind of AC low speed synchronous electric motor with anti-shocking base, comprise casing (1), stator core (2), stator winding (3), rotor (4), rotating shaft (5), bearing (6), compound shock absorbing bearing pedestal (7), two end cap (8), Fig. 2 and Fig. 3 show A-A, the B-B cross-sectional view.Rotor (4) clips the ring bodies that a permanent magnet (4-3) is formed by front and back two identical iron cores (4-1), (4-2), 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 on the axle, 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.When little tooth (2-2) rotor tooth (4-4) on certain stator core (3) alignd, the little tooth (2-2) of adjacent stator core (3) all differed 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 powder metallurgy composite material.
Claims (3)
1. the AC low speed synchronous electric motor with anti-shocking base is characterized in that comprising casing (1), stator core (2), stator winding (3), rotor (4), rotating shaft (5), bearing (6), compound shock absorbing bearing pedestal (7), two end cap (8), on the canine tooth (2-1) of stator core (2), have 3-6 little tooth (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 tooth (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. according to the AC low speed synchronous electric motor of the described band anti-shocking base of claim 1, it is characterized in that stator winding is the three-phase alternating current winding.
3. according to the AC low speed synchronous electric motor of the described band anti-shocking base 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 (4-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201780398U CN201130877Y (en) | 2007-10-16 | 2007-10-16 | AC low speed synchronous electric motor having shock-absorbing base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201780398U CN201130877Y (en) | 2007-10-16 | 2007-10-16 | AC low speed synchronous electric motor having shock-absorbing base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130877Y true CN201130877Y (en) | 2008-10-08 |
Family
ID=40018744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201780398U Expired - Fee Related CN201130877Y (en) | 2007-10-16 | 2007-10-16 | AC low speed synchronous electric motor having shock-absorbing base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130877Y (en) |
-
2007
- 2007-10-16 CN CNU2007201780398U patent/CN201130877Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20101016 |