CN107733117B - A kind of angle grinder reluctance machine - Google Patents
A kind of angle grinder reluctance machine Download PDFInfo
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- CN107733117B CN107733117B CN201710989916.8A CN201710989916A CN107733117B CN 107733117 B CN107733117 B CN 107733117B CN 201710989916 A CN201710989916 A CN 201710989916A CN 107733117 B CN107733117 B CN 107733117B
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- stator core
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
- H02K1/143—Stator cores with salient poles consisting of C-shaped cores of the horse-shoe type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
A kind of angle grinder reluctance machine, belongs to power tools technology field, is made of grinding, bearing, axis, stator core, armature winding, excitation winding and shell；It is evenly equipped with 6 fan-shaped pylones on the grinding circumference being fixed on axis, has between two fan-shaped pylones and is ground rib made of permeability magnetic material；Stator core is made of the sub- stator core of 3 " Fang " shapes, and every sub- stator core is symmetrically distributed in the two sides of saw blade and is fixed on shell, and adjacent sub- stator core along the circumferential direction differs 40 degree；There are an armature pole in the two sides of every sub- stator core towards axis；The yoke portion of every sub- stator core is wound with excitation winding；The root of every sub- stator core armature pole is wound with a centralized armature winding.This technology effectively realizes driving motor and what is be ground integrates, and saves space and cost.
Description
Technical field
The present invention relates to a kind of angle grinder reluctance machines, belong to power tools technology field.
Background technique
Angle grinder is for cutting, grinding and a kind of equipment of brushing metal and stone material, and principle is to utilize high speed rotation
Disc wheel or wire wheel etc. processing is ground, is cut off, derusted and polished to metal component.Motor is the core of angle grinder
Component, the quality of motor performance affect performance and the working efficiency of angle grinder performance, therefore design a kind of electricity of function admirable
Machine is most important.
From presently disclosed patent application, few patents are related to angle grinder motor, and most of patents concentrate on angle mill
Machine body construction.Such as number of patent application is 201720070995.8: a kind of angle grinder motor stator fixing device.This application dress
It sets to fix shell including stator and be embedded and is used for the fixinig plate of fixed stator in the fixed shell of stator, solving the prior art makes
The problem of used time influences angle grinder operation magnetic field and influences motor performance.
Electric angle grinder generallys use single phase series motor with motor, and the motor stator is by salient pole iron core and excitation winding
Composition, rotor are made of cathode iron core, armature winding, commutator and shaft, using carbon brush structure, are easy to be damaged, be needed frequently
Replace carbon brush.And number of patent application is 201220667215.5: a kind of brushless, frequency conversion Novel angle grinder, the angle grinder motor category
In three phase variable frequency asynchronous machine, this application technology by converter technique and variable-frequency motor technical application into electric tool, without carbon
Brush can eliminate the pyrophoric behavio(u)r generated when the work of series excited machine angle grinder.But this motor frequency conversion technology is complicated, cost compared with
It is high.
Magnetic resistance class electric machine structure is simple, firm, there was only silicon steel sheet on rotor, and without winding and permanent magnet, unfailing performance is high,
Higher efficiency is all had in wide revolving speed and power bracket.Such as number of patent application is 201520625308.5: a kind of
Two-phase switched reluctance motor controller, including power module, detection module, power module and drive module.This application technology is real
Now the long-term safety of two-phase switching motor, reliability service reduce production instead of original electric angle grinder series machine
Cost.
Present techniques propose that reluctance machine is recently as modern Control Technique of Microcomputer, power electronic technique and meter
A kind of New-type electric machine that calculation machine aided design techniques grow up, motor rotor construction is simple, controllable parameter is more, zmodem,
It is high-efficient, at low cost, wide application has been obtained in fields such as traction transport, universal industrial, household electrical appliance.
Summary of the invention
It is integrated in order to invent a kind of angle grinder reluctance machine, effectively realizing driving motor and be ground, save sky
Between and cost.The technology of the present invention takes following technical scheme:
A kind of angle grinder reluctance machine, it is characterised in that: by grinding, bearing, axis, stator core, armature winding, excitation
Winding and shell composition；It is evenly equipped with 6 fan-shaped pylones on the grinding circumference being fixed on axis, has magnetic conduction between two fan-shaped pylones
Rib is ground made of material；Shell passes through bearing and axis connection；
Stator core is made of the sub- stator core of 3 " Fang " shapes, and every sub- stator core is symmetrically distributed in grinding
It two sides and is fixed on shell, adjacent sub- stator core along the circumferential direction differs 40 degree；Every sub- stator core is towards axis
Two sides respectively have an armature pole, the end face of armature pole is fan-shaped；
The yoke portion that every sub- stator core is parallel to axis is wound with excitation winding；The root of every sub- stator core armature pole
It is wound with a centralized armature winding, the coiling of two armature coils of same sub- stator core is contrary；Adjacent sets
Between armature coil coiling it is contrary.The fan-shaped end face of armature pole and the fan-shaped pylone of grinding are aligned radially；
A kind of angle grinder reluctance machine as described above, it is characterised in that: excitation winding is around sub- stator core
The coiling of yoke portion, all excitation windings are around to identical.
A kind of angle grinder reluctance machine as described above, it is characterised in that: excitation winding is around three sub- stator cores
The coiling of yoke portion.
The beneficial effects of the present invention are:
1 each phase winding is completely isolated, and excitation winding and armature winding isolation, short circuit current will not cause the propagation of failure,
Improve reliability；
2 machine windings of the invention are all centralized winding, and internal resistance is small, high-efficient, and excitation winding and electromagnetism winding are easy to
Heat dissipation；
3 this technologies effectively realize driving motor and what is be ground integrates, and save space and cost；
4 stator core magnetic conductive areas are big, and under the flux density being equally saturated, the technology magnetic flux of the application is big, and back-emf is high,
Power of motor is big；
5 work according to switched reluctance machines principle, and control technology is mature.
Detailed description of the invention
Fig. 1 is the technology of the present invention angle grinder reluctance machine sectional side elevation.Wherein 1 grinding, 2 bearings, 3 axis, 4 stator cores, 5
Armature winding, 6 excitation windings, 7 shells.
Fig. 2 be excitation winding across three stator cores when cross sectional view.Wherein 1 grinding, 4 stator cores, 5 armature winding, 6 are encouraged
Magnetic winding.
Fig. 3 be excitation winding across a stator core when cross sectional view.Wherein 1 grinding, 4 stator cores, 5 armature winding, 6 are encouraged
Magnetic winding.
Fig. 4 is grinding schematic diagram.Wherein 1 grinding.
Specific embodiment
Fig. 1 is the technology of the present invention angle grinder reluctance machine sectional side elevation.Wherein 1 grinding, 2 bearings, 3 axis, 4 stator cores, 5
Armature winding, 6 excitation windings, 7 shells.A kind of angle grinder reluctance machine, it is characterised in that: the grinding circle being fixed on axis
It is evenly equipped with 6 fan-shaped pylones on week, has between two fan-shaped pylones and is ground rib made of permeability magnetic material；Shell passes through bearing and axis
Connection.
Stator core is made of the sub- stator core of 3 " Fang " shapes, and every sub- stator core is symmetrically distributed in grinding
It two sides and is fixed on shell, adjacent sub- stator core along the circumferential direction differs 40 degree；Every sub- stator core is towards axis
Two sides respectively have an armature pole, the end face of armature pole is fan-shaped；
The yoke portion that every sub- stator core is parallel to axis is wound with excitation winding；The root of every sub- stator core armature pole
It is wound with a centralized armature winding, the coiling of two armature coils of same sub- stator core is contrary；Adjacent sets
Between armature coil coiling it is contrary.The fan-shaped end face of armature pole and the fan-shaped pylone of grinding are aligned radially；
Excitation winding is around the yoke portion coiling of a sub- stator core, and all excitation windings are around to identical.Excitation winding around
The yoke portion coiling of three sub- stator cores.
Fig. 2 be excitation winding across three stator cores when cross sectional view.Wherein 1 grinding, 4 stator cores, 5 armature winding, 6
Excitation winding.Stator core is made of the sub- stator core of 3 " Fang " shapes, and every sub- stator core is symmetrically distributed in grinding
It two sides and is fixed on shell, adjacent sub- stator core along the circumferential direction differs 40 degree；Every sub- stator core is towards axis
Two sides respectively have an armature pole, the end face of armature pole is fan-shaped；Yoke portion coiling of the excitation winding around three sub- stator cores.
Fig. 3 be excitation winding across a stator core when cross sectional view.Wherein 1 grinding, 4 stator cores, 5 armature winding, 6
Excitation winding.Stator core is made of the sub- stator core of 3 " Fang " shapes, and every sub- stator core is symmetrically distributed in grinding
It two sides and is fixed on shell, adjacent sub- stator core along the circumferential direction differs 40 degree；Every sub- stator core is towards axis
Two sides respectively have an armature pole, the end face of armature pole is fan-shaped；Yoke portion coiling of the excitation winding around a sub- stator core, institute
Some excitation windings are around to identical.
Fig. 4 is grinding schematic diagram.Wherein 1 grinding.It is evenly equipped with 6 fan-shaped pylones on the grinding circumference being fixed on axis, two
Have between a fan-shaped pylone and is ground rib made of permeability magnetic material.
Its working principle: since electrical excitation magnetic pole of the invention and armature pole are aligned in the axial direction, work as rotor core
When the part of energy magnetic conduction is aligned with armature pole, the magnetic resistance of the armature pole linkage is minimum, armature winding magnetic linkage is maximum；Work as rotor core
Fan-shaped pylone when being aligned armature pole, the magnetic resistance of the armature pole linkage is maximum, armature winding magnetic linkage is minimum.
When the part of rotor core energy magnetic conduction moves closer to armature pole, the mutual inductance of the phase armature winding and excitation winding exists
Increase；The self-induction of the phase armature winding is also increasing.When rotor core energy magnetic conduction is when being partially disengaged armature pole, the phase armature around
The mutual inductance of group and excitation winding is increasing；The self-induction of the phase armature winding is also increasing.
When the application motor is as motor running, positive electricity is passed to the phase winding for generating positive induced electromotive force
Stream, then the winding can produce positive torque, and motor rotates forward；Positive electricity is passed to the phase winding for generating negative induced electromotive force
Stream, then the winding can produce negative torque, and motor is negative to be turned.
Claims (3)
1. a kind of angle grinder reluctance machine, it is characterised in that:
It is made of grinding, bearing, axis, stator core, armature winding, excitation winding and shell；
It is evenly equipped with 6 fan-shaped pylones on the grinding circumference being fixed on axis, has made of permeability magnetic material between two fan-shaped pylones
It is ground rib；
Shell passes through bearing and axis connection；
Stator core is made of the sub- stator core of 3 " Fang " shapes, and every sub- stator core is symmetrically distributed in the two sides of grinding
And it is fixed on shell, adjacent sub- stator core along the circumferential direction differs 40 degree；
There are an armature pole in the two sides of every sub- stator core towards axis, and the end face of armature pole is fan-shaped；
The yoke portion that every sub- stator core is parallel to axis is wound with excitation winding；
The root of every sub- stator core armature pole is wound with a centralized armature winding, and two of same sub- stator core
The coiling of armature coil is contrary；The coiling of armature coil between adjacent sets is contrary；
The fan-shaped end face of armature pole and the fan-shaped pylone of grinding are aligned radially.
2. a kind of angle grinder reluctance machine as described in claim 1, it is characterised in that:
Excitation winding is around the yoke portion coiling of a sub- stator core, and all excitation windings are around to identical.
3. a kind of angle grinder reluctance machine as described in claim 1, it is characterised in that:
Yoke portion coiling of the excitation winding around three sub- stator cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989916.8A CN107733117B (en) | 2017-10-23 | 2017-10-23 | A kind of angle grinder reluctance machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989916.8A CN107733117B (en) | 2017-10-23 | 2017-10-23 | A kind of angle grinder reluctance machine |
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| Publication Number | Publication Date |
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| CN107733117A CN107733117A (en) | 2018-02-23 |
| CN107733117B true CN107733117B (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710989916.8A Active CN107733117B (en) | 2017-10-23 | 2017-10-23 | A kind of angle grinder reluctance machine |
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Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546927A (en) * | 2009-04-23 | 2009-09-30 | 南京航空航天大学 | [-shaped modular stator segmentation rotor switched reluctance motor |
| DE102010002182A1 (en) * | 2010-02-22 | 2011-08-25 | Robert Bosch GmbH, 70469 | Machine tool with electric generator for passive power generation |
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- 2017-10-23 CN CN201710989916.8A patent/CN107733117B/en active Active
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| TA01 | Transfer of patent application right | ||
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Effective date of registration: 20181224 Address after: 266000 Wang Siwenzhuan, Department of Logistics, Shandong Vocational College of Foreign Trade, 201 Jufeng Road, Licang District, Qingdao City, Shandong Province Applicant after: Shi Zhengqi Address before: 255090 Kairuian Garden, Mashan Town, Zhangdian District, Zibo City, Shandong Province Applicant before: Shi Liwei |
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Effective date of registration: 20190918 Address after: 315000 Xiangyan, Zhangxi Village, Zhangshui Town, Haishu District, Ningbo City, Zhejiang Province Applicant after: Ningbo Yongshi Motor Co., Ltd. Address before: 266000 Wang Siwenzhuan, Department of Logistics, Shandong Vocational College of Foreign Trade, 201 Jufeng Road, Licang District, Qingdao City, Shandong Province Applicant before: Shi Zheng Qi |
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