CN103746531B - A kind of power-driven compartment transport vehicle radial permanent magnet drive motor - Google Patents
A kind of power-driven compartment transport vehicle radial permanent magnet drive motor Download PDFInfo
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- CN103746531B CN103746531B CN201410052796.5A CN201410052796A CN103746531B CN 103746531 B CN103746531 B CN 103746531B CN 201410052796 A CN201410052796 A CN 201410052796A CN 103746531 B CN103746531 B CN 103746531B
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- pole shoe
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Abstract
A kind of power-driven compartment transport vehicle radial permanent magnet drive motor, belongs to vehicle traction technical field of motors. Including drive end bearing bracket (10), rear end cap (1), casing (8), rotor and stator (9), it is characterised in that: described rotor is the radial permanent magnet rotor with pole shoe; The described radial permanent magnet rotor with pole shoe includes axle (2), rotor core (3), screw (5), tile permanent-magnet steel (6) and pole shoe (7), wherein, rotor core (3) is fitted on axle (2), the tile permanent-magnet steel (6) of even number is that the extremely spaced mode of N pole, S is fixed on rotor core (3) cylindrical by convex surface, and tile permanent-magnet steel (6) outer ring is fixed with pole shoe (7) by multiple screws (5). The magnetic field of this power-driven compartment transport vehicle radial permanent magnet drive motor is provided by permanent-magnet steel, it is not necessary to electricity Exciting Windings for Transverse Differential Protection, power consumption are few, it is not necessary to carbon brush and mechanical commutator, failure rate is low.
Description
Technical field
A kind of power-driven compartment transport vehicle radial permanent magnet drive motor, belongs to vehicle traction technical field of motors, is specifically related to a kind of vehicle permanent magnet drive motor.
Background technology
The direct current generator with carbon brush and mechanical commutator is mostly adopted at present with the matching used drive motor of electronic transport van, although DC motor structure is simple, controllability is high, speed-regulating range width, control circuit is relatively easy, less costly, but owing to the magnetic field of direct-drive motor is produced by electricity Exciting Windings for Transverse Differential Protection, power consumption is many, output is little, additionally, due to there is carbon brush and mechanical commutator, not only limit the raising of drive motor overload capacity and speed, if long-play, often maintenance certainly will be needed and change carbon brush and diverter, therefore direct current generator energy consumption is big, fault rate is high. as the patent No. is: ZL200920116549.1, patent name is: the patent of brushless DC motor rotor, disclose following technical scheme, including rotor core, rotating shaft and permanent magnet, rotor core is made up of punching superposition and is connected, rotating shaft is fixing with rotor core to be connected, the outer surface of rotor core is evenly distributed with even number T-shaped voussoir, slot is constituted between adjacent T-shaped voussoir, permanent magnet correspondence is embedded in slot, the permanent magnet of this construction rotor is directly facing air gap, under the armature-reaction effect of dash current, it is likely to produce irreversible demagnetization, permanent magnet is once form irreversible demagnetization, electric efficiency reduces, power, moment of torsion declines rapidly, its serviceability needs further improvement.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of magnetic field is provided to be provided by permanent-magnet steel, few without electricity Exciting Windings for Transverse Differential Protection, power consumption, it is not necessary to the power-driven compartment transport vehicle radial permanent magnet drive motor of carbon brush and mechanical commutator, failure rate is low.
The technical solution adopted for the present invention to solve the technical problems is: this power-driven compartment transport vehicle radial permanent magnet drive motor, including drive end bearing bracket, rear end cap, casing, rotor and stator, it is characterised in that: described rotor is the radial permanent magnet rotor with pole shoe;
The described radial permanent magnet rotor with pole shoe includes axle, rotor core, screw, tile permanent-magnet steel and pole shoe, wherein, rotor core is fitted on axle, the tile permanent-magnet steel of even number is that the extremely spaced mode of N pole, S is fixed on rotor core cylindrical by convex surface, and tile permanent-magnet steel outer ring is fixed with pole shoe by multiple screws.
Radial permanent magnet rotor outer ring with pole shoe is fixed with stator, and radial permanent magnet rotor and stator with pole shoe are all fixedly mounted in the space formed by drive end bearing bracket, rear end cap and casing. Adjacent tile permanent-magnet steel opposite polarity, level N pole and S pole are spaced, the inner arc surface of tile permanent-magnet steel is consistent with rotor core exterior arc surface, the exterior arc surface of tile permanent-magnet steel is consistent with the inner arc surface of pole shoe, and rotor core, tile permanent-magnet steel and pole shoe all have the screw adapted with screw.
Described rotor core is evenly equipped with even number and axially penetrates through the rivet circular hole of rotor core thickness, the center of multiple rivet circular holes is all on same circumference, the diameter of rivet circular hole is more than the diameter of screw, rotor punching laminates by the mode that burr one is suitable, forming rotor core by iron rivet after being riveted, the centrage of screw intersects with the centrage of iron rivet, it is ensured that screw and iron rivet are fastened together, make integrated connection more firm, improve service life.
The outer end of the described rivet circular hole distance from rotor core cylindrical is 1-4mm.
Preferably, the outer end of the rivet circular hole distance from rotor core cylindrical is 2mm.
Rotor core, iron rivet, tile permanent-magnet steel and pole shoe are connected as one by described screw.
Compared with prior art, the present invention is had the beneficial effect that
1, tile permanent-magnet steel is fixed on rotor core by pole shoe by screw, this structure is rotor magnetic bypass structure, avoid the permanent magnet design directly facing air gap of prior art lower rotor part, can effectively prevent permanent-magnet steel at excessive temperature or under the armature-reaction effect of dash current, the problem producing irreversible demagnetization, it is ensured that permanent-magnet steel is loss of excitation not.
2, drive motor rotor field is provided by tile permanent-magnet steel, it is not necessary to electricity Exciting Windings for Transverse Differential Protection, power consumption is few, and need not arrange carbon brush and mechanical commutator, failure rate is low, has the features such as high efficiency, high power density, compact conformation, reliable operation.
3, the centrage of screw intersects with the centrage of iron rivet, it is ensured that screw and iron rivet are fastened together, and makes integrated connection more firm, improves product quality, improve the service life of whole drive motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of this power-driven compartment transport vehicle radial permanent magnet drive motor embodiment.
Fig. 2 is the rotor profiles figure of embodiment illustrated in fig. 1.
Wherein: 1, rear end cap 2, axle 3, rotor core 4, iron rivet 5, screw 6, tile permanent-magnet steel 7, pole shoe 8, casing 9, stator 10, drive end bearing bracket.
Detailed description of the invention
Fig. 1 ~ 2 are highly preferred embodiment of the present invention, and below in conjunction with accompanying drawing 1 ~ 2, the present invention will be further described.
With reference to accompanying drawing 1: this power-driven compartment transport vehicle radial permanent magnet drive motor, including rear end cap 1, axle 2, rotor, casing 8, stator 9 and drive end bearing bracket 10, rotor outer ring is fixed with stator 9, rotor and stator 9 and is all fixedly mounted in the space formed by drive end bearing bracket 10, rear end cap 1 and casing 8. Axle 2 is from rotor center traverse, and the two ends of axle 2 are supported respectively by bearing and are arranged on rear end cap 1 and drive end bearing bracket 10, and termination, axle 2 one end is stretched out from drive end bearing bracket 10.
Visible in conjunction with accompanying drawing 1 and accompanying drawing 2: in the present embodiment, rotor adopts the radial permanent magnet rotor with pole shoe 7, and critical piece includes rotor core 3, iron rivet 4, screw 5, tile permanent-magnet steel 6 and pole shoe 7.
Being evenly equipped with even number on rotor core 3 and axially penetrate through the rivet circular hole of rotor core 3 thickness, the center of multiple rivet circular holes is all on same circumference, and the riveted joint of multi-disc rotor punching is formed rotor core 3 by the cooperation iron rivet 4 that act as of rivet circular hole.During riveted joint, rotor punching should laminate by the mode that burr one is suitable, it is possible to effectively reducing the burr impact on magnetic force performance, rotor core 3 is fitted on axle 2. The tile permanent-magnet steel 6 of even number is that the extremely spaced mode of N pole, S is fixed on rotor core 3 cylindrical by convex surface, and tile permanent-magnet steel 6 outer ring is fixed with pole shoe 7 by multiple screws 5. The centrage of screw 5 intersects with the centrage of iron rivet 4, it is ensured that rotor core 3, iron rivet 4, tile permanent-magnet steel 6 and pole shoe 7 compact siro spinning technology are integrated by screw 5. This design makes integrated connection more firm, improves product quality, improves the service life of whole drive motor.
The specific design mode of tile permanent-magnet steel 6 is as follows: adjacent tile permanent-magnet steel 6 opposite polarity, ensure that N pole and S pole are spaced, the inner arc surface of tile permanent-magnet steel 6 is consistent with rotor core 3 exterior arc surface, and the exterior arc surface of tile permanent-magnet steel 6 is consistent with the inner arc surface of pole shoe 7. Tile permanent-magnet steel 6 is fixed on rotor core 3 by pole shoe 7 by screw 5, this structure is rotor magnetic bypass structure, avoid the permanent magnet design directly facing air gap of prior art lower rotor part, can effectively prevent tile permanent-magnet steel 6 at excessive temperature or under the armature-reaction effect of dash current, the problem producing irreversible demagnetization, it is ensured that permanent-magnet steel is loss of excitation not.
The production method of the radial permanent magnet rotor with pole shoe, comprises the steps:
Rotor punching centre drill installs the center hole of axle 2, and on rotor punching, even circumferential bores even number rivet circular hole, and making the outer end of the rivet circular hole distance from rotor punching cylindrical is 2mm;
Multiple rotor punchings are laminated by the mode that burr one is suitable, after utilizing iron rivet 4 riveted joint, forms rotor core 3;
Tile permanent-magnet steel 6 is that the extremely spaced mode of N pole, S is fixed on the cylindrical of rotor core 3 by pole shoe 7 by screw 5 by convex surface;
Rotor core 3 is fitted on axle 2, completes the assembling of electronic transport van drive motor radial permanent magnet rotor.
Operation principle is as follows: when this power-driven compartment transport vehicle radial permanent magnet drive motor passes into by three-phase inverter after the three-phase alternating current of pulsewidth modulation, stator 9 produces a space rotating magnetic field, it is magnetic field interaction produced by with tile permanent-magnet steel 6, produce the rotating torques consistent with stator 9 winding rotating magnetic field direction, the p-m rotor making this power-driven compartment transport vehicle radial permanent magnet drive motor rotates, and then drives electronic transport van to run. When the drive motor rotor field of this power-driven compartment transport vehicle radial permanent magnet drive motor is provided by tile permanent-magnet steel 6, do not need electricity Exciting Windings for Transverse Differential Protection, power consumption is few, and without arranging carbon brush and mechanical commutator separately, greatly reduce equipment failure rate, in hgher efficiency, structure is compacter, works more reliable.
The above, be only presently preferred embodiments of the present invention, is not the restriction that the present invention makees other form, and any those skilled in the art are changed or be modified as the Equivalent embodiments of equivalent variations possibly also with the technology contents of the disclosure above. But every without departing from technical solution of the present invention content, according to any simple modification, equivalent variations and remodeling that above example is made by the technical spirit of the present invention, still fall within the protection domain of technical solution of the present invention.
Claims (2)
1. a power-driven compartment transport vehicle radial permanent magnet drive motor, including drive end bearing bracket (10), rear end cap (1), casing (8), rotor and stator (9), it is characterised in that: described rotor is the radial permanent magnet rotor with pole shoe;
The described radial permanent magnet rotor with pole shoe includes axle (2), rotor core (3), screw (5), tile permanent-magnet steel (6) and pole shoe (7), wherein, rotor core (3) is fitted on axle (2), the tile permanent-magnet steel (6) of even number is that the extremely spaced mode of N pole, S is fixed on rotor core (3) cylindrical by convex surface, and tile permanent-magnet steel (6) outer ring is fixed with pole shoe (7) by multiple screws (5);
Described rotor core (3) is evenly equipped with even number and axially penetrates through the rivet circular hole of rotor core (3) thickness, the center of multiple rivet circular holes is all on same circumference, the diameter of rivet circular hole is more than the diameter of screw (5), rotor punching laminates by the mode that burr one is suitable, forming rotor core (3) by iron rivet (4) after being riveted, the centrage of screw (5) intersects with the centrage of iron rivet (4); Rotor core (3), iron rivet (4), tile permanent-magnet steel (6) and pole shoe (7) are connected as one by described screw (5).
2. a kind of power-driven compartment transport vehicle radial permanent magnet drive motor according to claim 1, it is characterised in that: the outer end of the described rivet circular hole distance from rotor core (3) cylindrical is 1-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052796.5A CN103746531B (en) | 2014-02-17 | 2014-02-17 | A kind of power-driven compartment transport vehicle radial permanent magnet drive motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052796.5A CN103746531B (en) | 2014-02-17 | 2014-02-17 | A kind of power-driven compartment transport vehicle radial permanent magnet drive motor |
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| CN103746531A CN103746531A (en) | 2014-04-23 |
| CN103746531B true CN103746531B (en) | 2016-06-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431276A (en) * | 2008-11-26 | 2009-05-13 | 张学义 | Engine exhaust turbine driving radial permanent magnet generator |
| CN101951049A (en) * | 2010-09-29 | 2011-01-19 | 大连钰霖电机有限公司 | Motor permanent-magnetic rotor with pole shoes |
| CN102412644A (en) * | 2011-11-21 | 2012-04-11 | 沈阳工业大学 | Rotor magnetic pole structure for permanent motor |
| CN102497047A (en) * | 2011-11-15 | 2012-06-13 | 中电电机股份有限公司 | Novel permanent magnetism auxiliary exciter rotor structure |
| CN102710047A (en) * | 2012-06-12 | 2012-10-03 | 冯桂宏 | Axial laminated rotor of alternating current permanent magnet motor steel sheet |
-
2014
- 2014-02-17 CN CN201410052796.5A patent/CN103746531B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431276A (en) * | 2008-11-26 | 2009-05-13 | 张学义 | Engine exhaust turbine driving radial permanent magnet generator |
| CN101951049A (en) * | 2010-09-29 | 2011-01-19 | 大连钰霖电机有限公司 | Motor permanent-magnetic rotor with pole shoes |
| CN102497047A (en) * | 2011-11-15 | 2012-06-13 | 中电电机股份有限公司 | Novel permanent magnetism auxiliary exciter rotor structure |
| CN102412644A (en) * | 2011-11-21 | 2012-04-11 | 沈阳工业大学 | Rotor magnetic pole structure for permanent motor |
| CN102710047A (en) * | 2012-06-12 | 2012-10-03 | 冯桂宏 | Axial laminated rotor of alternating current permanent magnet motor steel sheet |
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| CN103746531A (en) | 2014-04-23 |
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