CN102280960B - Fixing method for motor rotor magnetic steel - Google Patents
Fixing method for motor rotor magnetic steel Download PDFInfo
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- CN102280960B CN102280960B CN 201110227194 CN201110227194A CN102280960B CN 102280960 B CN102280960 B CN 102280960B CN 201110227194 CN201110227194 CN 201110227194 CN 201110227194 A CN201110227194 A CN 201110227194A CN 102280960 B CN102280960 B CN 102280960B
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- aluminium layering
- iron boron
- neodymium iron
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- steel
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Abstract
The invention relates to a motor, specifically to a special motor, in particular to a fixing method of motor rotor magnetic steel. The fixing method comprises the following steps of: preparing a 20# steel tube, stainless steel screws and an NdFeB (Neodymium Iron Boron) material, putting an aluminum press bar into a V-shaped cavity of the NdFeB material, aligning the center of the V-shaped cavity of the NdFeB material to a fixing hole of the 20# steel tube, and fixing the aluminum press bar, the NdFeB material and the 20# steel tube by the stainless steel screws. A V-shaped cover of the stainless steel screw is provided with the guide edge, the dynamic locking location is formed between the position of the guide bar and the aluminum press bar, and a cavity between the guide edge and the aluminum press bar is empty before the guide edge and the aluminum press bar are not locked, a locking tool acts downwards on the top end face of the aluminum press bar close to the guide edge by an external force, thus the aluminum press bar forms a local directional outer edge, and the local outer edge of the aluminum press bar enters the position of the guide edge to form an empty cavity between the guide edge and the aluminum press bar so as to form the dynamic locking location.
Description
Technical field
The present invention relates to a kind of motor, relate to a kind of specific type of electric machine exactly, be specifically related to a kind of fixing means of motor rotor magnetic steel.
Background technology
At present, the specific type of electric machine rotor adopt " neodymium iron boron " material, " neodymium iron boron " be a kind of magnetic force very by force, frangible material again; 96～120 magnet steel that every suit rotor is processed with this material, each magnet steel is of a size of (LxWxB) 80x40x8, is fixed with aluminium layering; Aluminium layering is fixed with stainless steel screw, and in forging machine tool high-frequency rotary course, screw produces loosening press strip and the magnet steel of causing and becomes flexible; Thereby cause magnet steel to break, burn-down of electric motor.
Summary of the invention
The fixing means that the purpose of this invention is to provide a kind of motor rotor magnetic steel causes magnet steel to break easily with the existing aluminium layering of the rotor that solves employed motor in the present forging machine tool because of shaking to get loose easily, and the problem of burn-down of electric motor takes place.
The objective of the invention is to realize like this; A kind of fixing means of motor rotor magnetic steel; It is characterized in that: comprising: No. 20 steel pipes, stainless steel screw and " neodymium iron boron " materials, aluminium layering is put into the v-shaped cavity body of " neodymium iron boron " material 4, No. 20 steel pipe fixing holes of v-shaped cavity body centrally aligned of " neodymium iron boron " material; With stainless steel screw an aluminium layering, " neodymium iron boron " material and No. 20 steel pipes are fixed; " V " type of stainless steel screw emits guide margin is arranged, and forms dynamic locking bit between the position of guide margin and the aluminium layering, be not cavity before the locking; Through reinforcing the locking instrument is acted on downwards at the top end face near the aluminium layering of guide margin; Make aluminium layering form local direction property outer, form cavity between the position of the local outer entering guide margin of aluminium layering and the aluminium layering and form dynamic locking bit, after " V " of stainless steel screw type emits the corresponding dynamic locking bit of guide margin to accomplish; Accomplish other dynamic locking bit successively, forming dynamic locking with aluminium layering up to all stainless steel screws peripheries of fixing 96～120 magnet steel.
Two or front, rear, left and right were four about said guide margin had at least.
There is aluminium layering to embed the chamber between said aluminium layering and " neodymium iron boron " material; When the fixing hole of stainless steel screw process aluminium layering connected as one No. 20 steel pipes, " neodymium iron boron " material and aluminium layerings, aluminium layering embeds the chamber made stainless steel screw and " neodymium iron boron " material form the air gap.
The dynamic locking bit size that described guide margin and aluminium layering form is between 2～3 millimeters.
Advantage of the present invention: form dynamically locking owing between stainless steel screw and aluminium layering, have, when motor was given a shock, screw can not become flexible like this, had overcome in the motor operation course screw loosening and cause aluminium layering to get loose causing magnet steel by shatter problem.The present invention just to the shape of screw head and with aluminium layering between cooperate and improve, realize very simple.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is that screw cooperates the front schematic view that compresses magnet steel with aluminium layering;
Fig. 2 is the part sectioned view of Fig. 1.
Among the figure: 1, stainless steel screw; 2, dynamic locking bit; 3, aluminium layering; 4, " neodymium iron boron " material; 5, No. 20 steel pipes; 6, aluminium layering embeds the chamber; 7, locking instrument; 8, guide margin.
Embodiment
Fig. 1, shown in Figure 2 be magnet steel fixed pan sketch map in the rotor provided by the present invention; Fig. 2 is the part sectioned view of Fig. 1, and the specific type of electric machine rotor is fixing many circle " neodymium iron boron " materials 4 on No. 20 steel pipes 5, " neodymium iron boron " material 4 be a kind of magnetic force very by force, frangible material again; 96～120 magnet steel that every suit rotor is processed with this material; Each magnet steel is of a size of (LxWxB) 80x40x8, compresses with aluminium layering 3, with the fixing hole of stainless steel screw 1 through aluminium layering 3 No. 20 steel pipes 5, " neodymium iron boron " materials 4 is connected as one with aluminium layering 3 then; " V " type of stainless steel screw 1 emits guide margin 8 is arranged; Two or front, rear, left and right were four about guide margin 8 had at least, formed dynamic locking bit 2 between the position of guide margin 8 and the aluminium layering 3, had not been cavity before the locking; Through reinforcing locking instrument 7 is acted on downwards at the top end face near the aluminium layering 3 of guide margin 8; Make aluminium layering 3 form local direction property outer, form cavity between the position of the local outer entering guide margin 8 of aluminium layering 3 and the aluminium layering 3 and form dynamic locking bit 2, after " V " of a stainless steel screw 1 type emits guide margin 8 corresponding dynamic locking bits 2 to accomplish; Accomplish other dynamic locking bit 2 successively, up to all stainless steel screw 1 peripheries and the dynamically locking of aluminium layering 3 formation of fixing 96～120 magnet steel.Form dynamically locking owing between stainless steel screw 1 and aluminium layering 3, have, when motor was given a shock, screw can not become flexible like this, had overcome in the motor operation course screw loosening and cause aluminium layering to get loose causing magnet steel by shatter problem.
In addition; There is aluminium layering to embed chamber 6 between aluminium layering 3 and " neodymium iron boron " material 4; When the fixing hole of stainless steel screw 1 process aluminium layering 3 connects as one No. 20 steel pipes 5, " neodymium iron boron " material 4 and aluminium layerings 3; Aluminium layering embeds chamber 6 and makes stainless steel screw 1 and " neodymium iron boron " material 4 formation air gaps, can cushion stainless steel screw 1 and neodymium iron boron " material 4 the two direct effect when vibrations, reach the protection neodymium iron boron " purpose of material 4.
During installation: the v-shaped cavity body of aluminium layering 3 being put into " neodymium iron boron " material 4; No. 20 steel pipe 5 fixing holes of the v-shaped cavity body centrally aligned of " neodymium iron boron " material 4; With stainless steel screw 1 aluminium layering 3, " neodymium iron boron " material 4 and No. 20 steel pipes 5 are fixed, because of repelling each other between " neodymium iron boron " material (magnet steel) and " neodymium iron boron " material (magnet steel), after having adorned first; When refilling second block of magnet steel; To two blocks of magnet steel be forced to connect with special fixing device, then near the screw the magnet steel press strip tightened, by that analogy assembling.After having adorned etc. whole magnet steel, with the stainless steel specific purpose tool all with screw.At this moment, along the locking of head of screw long axis direction, let aluminium layering 3 produce distortion with locking instrument 7, material flow to guide margin 8, and screw can not be rotated.Thereby guarantee motor when high speed rotating, screw can not become flexible, and magnet steel is also just guaranteed motor safety property not by shatter, and Electric Machine Control is normal.
Claims (4)
1. the fixing means of a motor rotor magnetic steel; It is characterized in that: comprising: No. 20 steel pipes (5), stainless steel screw (1) and " neodymium iron boron " material (4); Aluminium layering (3) is put into the v-shaped cavity body of " neodymium iron boron " material (4); No. 20 steel pipes of v-shaped cavity body centrally aligned (5) fixing hole of " neodymium iron boron " material (4); With stainless steel screw (1) aluminium layering (3), " neodymium iron boron " material (4) and No. 20 steel pipes (5) are fixed; " V " type cap of stainless steel screw (1) has guide margin (8), forms dynamic locking bit (2) between the position of guide margin (8) and the aluminium layering (3), be not cavity before the locking; Through reinforcing locking instrument (7) is acted on downwards at the top end face near the aluminium layering (3) of guide margin (8); Make aluminium layering (3) form local direction property outer, the cavity that forms between the position of the local outer entering guide margin (8) of aluminium layering (3) and the aluminium layering (3) forms dynamic locking bit (2), after the corresponding dynamic locking bit (2) of " V " of a stainless steel screw (1) type cap guide margin (8) is accomplished; Accomplish other dynamic locking bit (2) more successively, up to all stainless steel screws (1) periphery and the dynamically locking of aluminium layering (3) formation of fixing 96～120 magnet steel; Described " neodymium iron boron " material (4) is to be made up of 96～120 magnet steel.
2. the fixing means of a kind of motor rotor magnetic steel according to claim 1 is characterized in that: about described guide margin (8) has at least two.
3. the fixing means of a kind of motor rotor magnetic steel according to claim 1; It is characterized in that: have aluminium layering to embed chamber (6) between described aluminium layering (3) and " neodymium iron boron " material (4); When connecting as one, aluminium layering embeds chamber (6) makes stainless steel screw (1) and " neodymium iron boron " material (4) form the air gap to the fixing hole of stainless steel screw (1) process aluminium layering (3) with No. 20 steel pipes (5), " neodymium iron boron " material (4) and aluminium layering (3).
4. the fixing means of a kind of motor rotor magnetic steel according to claim 1 is characterized in that: dynamic locking bit (2) size that described guide margin (8) and aluminium layering (3) form is between 2～3 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110227194 CN102280960B (en) | 2011-08-09 | 2011-08-09 | Fixing method for motor rotor magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110227194 CN102280960B (en) | 2011-08-09 | 2011-08-09 | Fixing method for motor rotor magnetic steel |
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| Publication Number | Publication Date |
|---|---|
| CN102280960A CN102280960A (en) | 2011-12-14 |
| CN102280960B true CN102280960B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110227194 Active CN102280960B (en) | 2011-08-09 | 2011-08-09 | Fixing method for motor rotor magnetic steel |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420479B (en) * | 2011-12-16 | 2013-04-24 | 铜陵浩岩节能科技有限公司 | Rotor of permanent magnet synchronous motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985000937A1 (en) * | 1983-08-17 | 1985-02-28 | Sundstrand Corporation | Magnetic rotor and method of assembly |
| CN87206678U (en) * | 1987-04-18 | 1988-06-15 | 国营九江仪表厂 | Dish shape coreless ac permanent magnetic generator |
| CN1059807A (en) * | 1989-10-12 | 1992-03-25 | 北京科瑞德特钕磁体有限公司 | Under-water nd-fe-b permanent magnet motor |
| DE4415224A1 (en) * | 1994-04-27 | 1995-11-02 | Siemens Ag | Electrical machine with magnet wheel |
| GB2472502A (en) * | 2009-08-06 | 2011-02-09 | Gen Electric | Permanent magnet machine rotor |
-
2011
- 2011-08-09 CN CN 201110227194 patent/CN102280960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985000937A1 (en) * | 1983-08-17 | 1985-02-28 | Sundstrand Corporation | Magnetic rotor and method of assembly |
| CN87206678U (en) * | 1987-04-18 | 1988-06-15 | 国营九江仪表厂 | Dish shape coreless ac permanent magnetic generator |
| CN1059807A (en) * | 1989-10-12 | 1992-03-25 | 北京科瑞德特钕磁体有限公司 | Under-water nd-fe-b permanent magnet motor |
| DE4415224A1 (en) * | 1994-04-27 | 1995-11-02 | Siemens Ag | Electrical machine with magnet wheel |
| GB2472502A (en) * | 2009-08-06 | 2011-02-09 | Gen Electric | Permanent magnet machine rotor |
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| CN102280960A (en) | 2011-12-14 |
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Owner name: CSIC XI AN DONGYI SCIENCE TECHNOLOGY + INDUSTRY GR Free format text: FORMER NAME: XI AN DONGFENG METERS FACTORY |
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Address after: 710065 No. 3 East Road, Yanta District, Shaanxi, Xi'an Patentee after: CSIC XI'AN DONG YI SCIENCE TECHNOLOGY & INDUSTRY GROUP CO., LTD. Address before: 710065 No. 3 East Road, Yanta District, Shaanxi, Xi'an Patentee before: Xi'an Dongfeng Meters Factory |