CN204243945U - A kind of motor rotor magnetic steel protective device - Google Patents
A kind of motor rotor magnetic steel protective device Download PDFInfo
- Publication number
- CN204243945U CN204243945U CN201420735230.8U CN201420735230U CN204243945U CN 204243945 U CN204243945 U CN 204243945U CN 201420735230 U CN201420735230 U CN 201420735230U CN 204243945 U CN204243945 U CN 204243945U
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- yoke
- pole shoe
- protective device
- rotor magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a kind of motor rotor magnetic steel protective device; it is characterized in that: magnet steel protected location comprises: pole shoe (1), yoke (3); two magnet steel (2) are respectively charged in two grooves of pole shoe (1); then cover yoke (3), magnet steel (2) is enclosed between pole shoe (1), yoke (3).Magnet steel can be enclosed between pole shoe, yoke by the utility model, and pole shoe and yoke can protect magnet steel not easily to be shattered, and meanwhile, also can prevent magnet steel once fly out after shattering, cause stator coil short circuit, thus cause specific type of electric machine to damage.
Description
Technical field
The utility model relates to a kind of motor, is a kind of specific type of electric machine exactly, is specifically related to a kind of motor rotor magnetic steel protective device.
Background technology
At present, specific type of electric machine rotor adopts " neodymium iron boron " material, " neodymium iron boron " be a kind of magnetic force very by force, frangible again material, every suit rotor this material 182, eachly be of a size of (LxWxB) 35x35x8, be fixed with aluminium layering, aluminium layering stainless steel screw is fixed, in forging machine tool high-frequency rotary course, screw produces to loosen and causes press strip and magnet steel to loosen, thus cause magnet steel to break, collide with motor stator after broken magnet steel flies out, cause stator to burn.We are by research magnet steel fixing protection technology, and make motor in high-speed rotation, magnet steel is not shaken and splits, and ensure, once magnet steel shatters also is not thrown out of, to cause motor stator to damage, guarantee safe operation simultaneously.
Provide in the patent of having applied for " a kind of motor rotor magnetic steel fixing means of good manufacturability ", this method comprises: No. 20 steel pipes, stainless steel screw and " neodymium iron boron " material, aluminium layering is put into the v-shaped cavity body of " neodymium iron boron " material 4, the V-type chamber central of " neodymium iron boron " material aims at No. 20 steel pipe fixing holes, with stainless steel screw by an aluminium layering, " neodymium iron boron " material and No. 20 steel pipes are fixed, " V " of stainless steel screw type emits guide margin, formative dynamics locking bit between the position of guide margin and aluminium layering, cavity is before not locking, by reinforcing, locking tool is acted on downwards at the top end face of the aluminium layering near guide margin, aluminium layering is made to form local direction outer, the outer, local of aluminium layering enters between the position of guide margin and aluminium layering and forms cavity formative dynamics locking bit, after the dynamic locking emitting guide margin corresponding when " V " type of a stainless steel screw has been located, complete other dynamic locking location successively, until fix all stainless steel screw peripheries of 96 ~ 120 magnet steel and aluminium layering formative dynamics locks.
Although have between stainless steel screw and aluminium layering, to form dynamic locking fixed, and when motor is given a shock, screw can not loosen, and overcomes in motor operation course, screw loosening and the problem that causes aluminium layering to get loose causing magnet steel to be shattered.But because aluminium layering fixes magnet steel by outer, local, the magnet steel of guide margin structure very easily damages on the one hand, and therefore, it is shatter that fixation procedure and the course of work all likely make to have guide margin magnet steel.Burn-down of electric motor is damaged.
Utility model content
The purpose of this utility model is to provide a kind of motor rotor magnetic steel protective device, and fix magnet steel with the outer, aluminium layering local solving the motor used in current forging machine tool, the magnet steel of guide margin structure very easily damages, and the problem of burn-down of electric motor occurs.
The purpose of this utility model is achieved in that a kind of motor rotor magnetic steel protective device, it is characterized in that: magnet steel protected location comprises: pole shoe, yoke.Two magnet steel are respectively charged in two grooves of pole shoe, then cover yoke, are enclosed in by magnet steel between pole shoe, yoke.
Two described magnet steel are concentric with motor shaft, and two magnet steel center calibration are 34 degree.
Be arcwall face (arc core must keep concentric with rotor) above described pole shoe, have two grooves below, two end band are along stretching flanging; Left and right is symmetrical with center line.
Interval (ensureing two magnet steel intervals) is had between two described grooves.
Described You Liangge inclined-plane, yoke upper surface, yoke lower surface is arcwall face (arc core must keep concentric with rotor, cambered surface laminating rotor outer circle).
The utility model has the advantages that: owing to adopting magnet steel protected location and magnet steel protection fixed cell, magnet steel is fixed by magnet steel protected location, and magnet steel protected location is fixed on rotor by protection fixed cell.Magnet steel protected location comprises: pole shoe, yoke; two magnet steel; two magnet steel are respectively charged in two grooves of pole shoe; then cover yoke, be enclosed in by magnet steel between pole shoe, yoke, pole shoe and yoke can protect magnet steel not easily to be shattered; simultaneously; also can prevent magnet steel once fly out after shattering, cause stator coil short circuit, thus cause specific type of electric machine to damage.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the part sectioned view of Fig. 1;
Fig. 3 is magnet steel protected location structural representation;
Fig. 4 is magnet steel protection fixed cell structural representation;
Fig. 5 is magnet steel protection fixed cell press strip level schematic diagram;
Fig. 6 is the A-A directional profile figure of Fig. 5.
In figure: 1, pole shoe, 2, magnet steel, 3, yoke; 4, press strip; 5, backplate; 6, screw; 7, draw-in groove; 8, screw fixed hole; 9, press strip inner side slot; 10, backplate holddown groove; 11, magnet steel protected location; 12, magnet steel protection fixed cell; 13, rotor.
Embodiment
As shown in Figure 1 and Figure 2; a kind of motor rotor magnetic steel fixture of good manufacturability; at least comprise: magnet steel protected location 11 and magnet steel protection fixed cell 12, magnet steel is fixed by magnet steel protected location 11, and magnet steel protected location 11 is fixed on rotor 13 by steel protection fixed cell 12.
Magnet steel protected location 11 distributes by every 45 degree on rotor 13.
As shown in Figure 3; magnet steel protected location 11 comprises: pole shoe 1, yoke 3; two magnet steel, 2, two magnet steel 2 are respectively charged in two grooves of pole shoe 1, then cover yoke 3; magnet steel 2 is enclosed between pole shoe 1, yoke 3; pole shoe 1 and yoke 3 can protect magnet steel 2 not easily to be shattered, and meanwhile, also can prevent magnet steel 2 once fly out after shattering; cause stator coil short circuit, thus cause specific type of electric machine to damage.
Two described magnet steel 2 are concentric with motor shaft, and two magnet steel 2 center calibration are 34 degree.
As shown in Figure 4, described magnet steel protection fixed cell 12 comprises press strip 4, screw 6 and backplate 5; The draw-in groove 7 that press strip 4 both sides have pole shoe 1 two ends fixing; screw fixed hole 8 is had in the middle of press strip 4; after magnet steel protected location is assembled; the pole shoe 1 of magnet steel protected location inserts in the draw-in groove 7 of press strip 4; with screw 6, press strip 4, magnet steel protected location are together fixed on rotor, then backplate 5 is inserted along side guard plate holddown groove 10 in press strip, ensure that screw does not loosen in vibration processes; even if there is respective bolts to shake pine, also can guarantee that screw does not fly out.
As shown in Figure 5, press strip 4 adopts aluminum material, the long 520mm of press strip, wide 32.51mm, high 15mm, mill out draw-in groove 7 in the outer both sides of press strip 4, draw-in groove 7 groove width, groove depth coordinate with pole shoe, press strip 4 liang of side channels and pole shoe ensure that monolateral maximal clearance must not be greater than 0.15mm, minimum clearance 0.04, and degree of depth gap is 0.26mm.
As shown in Figure 6, mill out the press strip inner side slot 9 of 10mmx5mm, then both sides mill out the backplate holddown groove 10 of 1.2mmx1.2mm in the groove of press strip inner side slot 9 in the middle of press strip 4, backplate holddown groove 10 ensures that groove width, groove depth are consistent in 520mm length.Press strip 4 is processed by spacing the fixing hole 8 of 6 diameter 8mm.Guarantee that pole shoe can insert press strip smoothly, ensure again to compress pole shoe, pole shoe can not be produced and rock.
Installation method of the present utility model is: 1) with 6 screws by press strip 4 be fixed on rotor, fixing tight, allow press strip 4 and rotor retain about 1mm gap; 2) magnet steel 2 is compressed into pole shoe 1, then yoke 3 is fixed on outside magnet steel 2; 3) pole shoe assembling magnet steel 2 and yoke 3 is inserted along press strip outer side slot; 4) the fastening screw be arranged on press strip.5) along side guard plate holddown groove 10 in the press strip of press strip 4, backplate 5 is inserted.Thus guarantee that motor is when High Rotation Speed, screw can not loosen, and magnet steel is not shattered, and also just guarantees motor safety, Electric Machine Control.
Claims (5)
1. a motor rotor magnetic steel protective device; it is characterized in that: magnet steel protected location comprises: pole shoe (1), yoke (3); two magnet steel (2) are respectively charged in two grooves of pole shoe (1), then cover yoke (3), are enclosed in by magnet steel (2) between pole shoe (1), yoke (3).
2. a kind of motor rotor magnetic steel protective device according to claim 1, is characterized in that: two described magnet steel (2) are concentric with motor shaft, and two magnet steel (2) center calibration are 34 degree.
3. a kind of motor rotor magnetic steel protective device according to claim 1, is characterized in that: described pole shoe (1) is arcwall face above, and have two grooves below, two end band are along stretching flanging; Left and right is symmetrical with center line.
4. a kind of motor rotor magnetic steel protective device according to claim 1, is characterized in that: have interval between two described grooves.
5. a kind of motor rotor magnetic steel protective device according to claim 1, is characterized in that: described You Liangge inclined-plane, yoke (3) upper surface, yoke (3) lower surface is arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735230.8U CN204243945U (en) | 2014-12-01 | 2014-12-01 | A kind of motor rotor magnetic steel protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735230.8U CN204243945U (en) | 2014-12-01 | 2014-12-01 | A kind of motor rotor magnetic steel protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243945U true CN204243945U (en) | 2015-04-01 |
Family
ID=52773389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420735230.8U Expired - Fee Related CN204243945U (en) | 2014-12-01 | 2014-12-01 | A kind of motor rotor magnetic steel protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243945U (en) |
-
2014
- 2014-12-01 CN CN201420735230.8U patent/CN204243945U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20191201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |