CN107553602A - A kind of electric saw direct drive unit - Google Patents

A kind of electric saw direct drive unit Download PDF

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Publication number
CN107553602A
CN107553602A CN201710990014.6A CN201710990014A CN107553602A CN 107553602 A CN107553602 A CN 107553602A CN 201710990014 A CN201710990014 A CN 201710990014A CN 107553602 A CN107553602 A CN 107553602A
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CN
China
Prior art keywords
sub
stator core
stator
saw blade
saw
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CN201710990014.6A
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Chinese (zh)
Inventor
史立伟
周晓宇
张永升
高振昆
安俊豪
韩震
吴院兵
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史立伟
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Priority to CN201710990014.6A priority Critical patent/CN107553602A/en
Publication of CN107553602A publication Critical patent/CN107553602A/en

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Abstract

A kind of electric saw direct drive unit, belongs to electric saw technical field, is made up of axle, permanent magnet, saw blade, stator core, armature winding and housing;10 fan-shaped pylones are evenly equipped with the saw blade circumference being fixed on axle, have saw blade rib made of permeability magnetic material between two through holes;Stator core is made up of six pairs of sub- stator cores, every pair of sub- stator core is symmetrically distributed in the both sides of saw blade and is fixed on housing, every sub- stator core has the fan-shaped armature pole protruded towards the side of saw blade, with permanent magnet is fixed between a pair of two sub- stator cores, a centralized armature winding is wound with every sub- stator core.This technology effectively realizes the integrated of electric saw motor and saw blade, saves space and cost.Present techniques both go for bench saw, go for electric circular saw again.

Description

A kind of electric saw direct drive unit

Technical field

A kind of electric saw direct drive unit, belongs to electric saw technical field.

Background technology

At present, wood-based plate is widely applied as base material in furniture, interior/exterior decoration, product casing etc..Cause The demand of this various sawing device is also being continuously increased.In woodwork production, it is often necessary to sheet material is cut, by plate Material is sawed into certain shape or angle, but traditional woodworking circular sawing machine is in machining accuracy, result, structure type and production effect Rate etc. can not all meet production requirement.Therefore the higher bench saw of various automaticities has obtained rapid development.

Before Precision bench saw is not introduced, domestic long-term use of common annular saw, the operation such as cutting, edging is had been manually done, is caused Poor product quality, the problems such as precision is low.After China introduces precision pulling bench saw from the end of the eighties in last century, its technology is digested Absorb, and innovated.

But for middle-size and small-size wooden processing enterprise, it is difficult to the bench saw that large-scale use automaticity is higher, so as to limit The market development of bench saw and wooden processing enterprise.Therefore need to be innovated on the technical foundation of existing bench saw, to subtract The cost of manufacture of few bench saw.

A kind of bench saw direct drive unit disclosed by the invention, a series of transmission device between motor and saw blade can be saved Slightly, and then save production cost and reduce the space of bench saw.With higher researching value and application prospect.

The patent of correlation is less both at home and abroad at present.In the utility model patent authorized:Bench saw electric motor stand structure, application Number it is 201420034981.7, connector and the frame only need to can be achieved to connect by a pin or screw, extremely convenient, So as to improve efficiency of assembling, preparation cost is reduced.Simultaneously as the integrally formed link is fixed on this by screw On motor, integrative-structure is formd equivalent to the motor and the link, and the lifting of motor is completed by screw-nut body, It is more firm so as to the connection of the link and the motor, then improve the stability that the bench saw uses.

Apply for the patent of invention:Bench saw, Application No.:200810194520.5 disclosing one kind, can to simplify bench saw thick Process the bench saw for the troublesome operation brought.Saw blade is driven by the first motor to carry out cutting action, and when saw blade is cut At least part saw blade protrudes the working surface of workbench, and detachable place is equipped with electric planer, the electric planer bag on the working surface Include the second motor and driven by second motor, around the cutter shaft of its own longitudinal axis rotation.But above-mentioned patent saw blade and electricity Need the transmission devices such as belt, belt wheel, guide wheel to make the volume of bench saw still very big between machine, and the height of saw blade and motor is not implemented It is integrated.

Electric saw direct drive unit disclosed by the invention, relatively big difference with above-mentioned application technically all be present and specific Motor body structure(Saw blade is served as rotor, it is integrated with motor to realize saw blade)It is creative.

The content of the invention

The purpose of the present invention is effectively to integrate bench saw motor and saw blade, is reduced complicated between original motor and saw blade Transmission device is to save the cost of manufacture in space and bench saw.The technical scheme is that:

A kind of electric saw direct drive unit, it is characterised in that:By axle, permanent magnet, saw blade, stator core, armature winding and housing Composition;

10 fan-shaped pylones are evenly equipped with the saw blade circumference being fixed on axle, have saw blade made of permeability magnetic material between two through holes Rib;Housing passes through bearing and axis connection;

Along the circumferential direction there are 6 sub- stator cores of Contraband font saw blade periphery successively, and sub- stator core is fixed on housing;

Every sub- stator core has two stator tooths extended to axle center, and the side of stator tooth is in sector, adjacent sub- stator core Along the circumferential direction differ 30 degree;6 sub- stator cores form semicircle in the top of axle;Two stator tooths pair of sub- stator core Claim the both sides for being distributed in saw blade;

Yoke portion among sub- stator core is embedded with permanent magnet parallel to the yoke portion among axis and sub- stator core;Adjacent permanent magnet Magnetizing direction it is opposite;

Each stator root portion of sub- stator core is wound with a centralized armature winding, and two in same sub- stator core The coiling of individual armature winding is in opposite direction;The coiling of the adjacent armature coil in sub- stator core is in opposite direction.

A kind of electric saw direct drive unit, it is characterised in that:

It is made up of bearing, armature winding, Exciting Windings for Transverse Differential Protection, saw blade, stator core, housing and axle;

16 fan-shaped pylones are evenly equipped with the saw blade circumference being fixed on axle, have saw blade made of permeability magnetic material between two through holes Rib;Housing passes through bearing and axis connection;

Along the circumferential direction there are 6 sub- stator cores of Contraband font saw blade periphery successively, and sub- stator core is fixed on housing;

Every sub- stator core has two stator tooths extended to axle center, and the side of stator tooth is in sector, adjacent sub- stator core Along the circumferential direction differ 30 degree;6 sub- stator cores form semicircle in the top of axle;Two stator tooths pair of sub- stator core Claim the both sides for being distributed in saw blade;

Yoke portion among sub- stator core on axis and yoke portion parallel to being wound with Exciting Windings for Transverse Differential Protection;

Each stator root portion of sub- stator core is wound with a centralized armature winding, and two in same sub- stator core The coiling of individual armature winding is in opposite direction.

A kind of electric saw direct drive unit as described above, it is characterised in that:

Yoke portion coiling of the Exciting Windings for Transverse Differential Protection around six sub- stator cores;Circumferentially adjacent armature winding is around to identical.

A kind of electric saw direct drive unit as described above, it is characterised in that:

Exciting Windings for Transverse Differential Protection is around the yoke portion coiling of every sub- stator core, and adjacent Exciting Windings for Transverse Differential Protection is around on the contrary, circumferentially adjacent Armature winding is around to opposite.

Beneficial effects of the present invention are as follows:

(1)The integrated electric saw motor of the present invention and saw blade, reduce the actuated element between original saw blade and motor, reduce electric saw Production cost;

(2)Due to reducing transmission device, the volume of electric saw can also reduce, suitable for middle-size and small-size wood processing enterprise;

(3)The electric saw direct drive unit of the present invention with control circuit is combined that electric saw can be cut and specifically adjusted;

(4)Each phase winding is completely isolated, Exciting Windings for Transverse Differential Protection(Permanent magnet)Isolate with armature winding, short circuit current will not cause failure Propagate, improve reliability;

(5)Exciting Windings for Transverse Differential Protection(Permanent magnet)It is easy to radiate with armature winding, hot operation environment can be adapted to;

(6)Present techniques both go for bench saw, go for electric circular saw again.

Brief description of the drawings

Fig. 1 is a kind of structure diagram of electric saw direct drive unit embodiment one of the present invention.In figure, 1, axle;2nd, stator core; 3rd, saw blade;4th, permanent magnet;5th, armature winding;6th, housing;7th, platen;8th, bearing.

Fig. 2 is a kind of electric saw direct drive unit embodiment side view diagram of the present invention.In figure, 2, stator core;4th, permanent magnetism Body;5th, armature winding.

Fig. 3 is a kind of saw blade figure of bench saw direct drive unit embodiment one of the present invention, wherein 1, axle, 3, saw blade.

Fig. 4 is a kind of structure diagram of electric saw direct drive unit embodiment two.In figure, 1, axle;2nd, bearing;3rd, armature around Group;4th, saw blade;5th, Exciting Windings for Transverse Differential Protection;6th, stator core.

Fig. 5 is a kind of saw blade figure of electric saw direct drive unit embodiment two.Wherein 1, axle, 4, saw blade.

Fig. 6 is a kind of side view of bench saw direct drive unit embodiment two, wherein 1, axle, 3, saw blade.In figure, 5, excitation Winding;6th, stator core.

Embodiment

The first embodiment of a kind of electric saw direct drive unit as shown in Figure 1, by axle, permanent magnet, saw blade, stator iron The heart, armature winding and housing composition;

10 fan-shaped pylones are evenly equipped with the saw blade circumference being fixed on axle, have saw blade made of permeability magnetic material between two through holes Rib;Housing passes through bearing and axis connection;Housing is fixedly arranged above platen.

Along the circumferential direction there are 6 sub- stator cores of Contraband font saw blade periphery successively, and sub- stator core is fixed on housing;

Every sub- stator core has two stator tooths extended to axle center, and the side of stator tooth is in sector, adjacent sub- stator core Along the circumferential direction differ 30 degree;6 sub- stator cores form semicircle in the lower section of axle;Two stator tooths pair of sub- stator core Claim the both sides for being distributed in saw blade;

Yoke portion among sub- stator core is embedded with permanent magnet parallel to the yoke portion among axis and sub- stator core;Adjacent permanent magnet Magnetizing direction it is opposite;

Each stator root portion of sub- stator core is wound with a centralized armature winding, and two in same sub- stator core The coiling of individual armature winding is in opposite direction;The coiling of the adjacent armature coil in sub- stator core is in opposite direction.

A kind of electric saw direct drive unit embodiment side view diagram of the present invention as shown in Figure 2, saw blade periphery is along the circumferential direction There are 6 sub- stator cores of Contraband font successively, sub- stator core is fixed on housing;

Every sub- stator core has two stator tooths extended to axle center, and the side of stator tooth is in sector, adjacent sub- stator core Along the circumferential direction differ 30 degree;6 sub- stator cores form semicircle in the lower section of axle;Two stator tooths pair of sub- stator core Claim the both sides for being distributed in saw blade;

Yoke portion among sub- stator core is embedded with permanent magnet parallel to the yoke portion among axis and sub- stator core;Adjacent permanent magnet Magnetizing direction it is opposite.

A kind of saw blade side view of bench saw direct drive unit embodiment one as shown in Figure 3,10 are evenly equipped with saw blade circumference Fan-shaped pylone, there is saw blade rib made of permeability magnetic material between two through holes;The fan-shaped end face of armature pole and the fan-shaped pylone of saw blade Diametrically align.

Fig. 4 is a kind of structure diagram of electric saw direct drive unit embodiment two.By bearing, armature winding, Exciting Windings for Transverse Differential Protection, saw Piece, stator core, housing and axle composition.

16 fan-shaped pylones are evenly equipped with the saw blade circumference being fixed on axle, are had between two through holes made of permeability magnetic material Saw blade rib;Housing passes through bearing and axis connection.

Along the circumferential direction there are 6 sub- stator cores of Contraband font saw blade periphery successively, and sub- stator core is fixed on housing.

Every sub- stator core has two stator tooths extended to axle center, and the side of stator tooth is in sector, adjacent sub- stator It is unshakable in one's determination along the circumferential direction to differ 30 degree;6 sub- stator cores form semicircle in the top of axle;Two stators of sub- stator core Tooth is symmetrically distributed in the both sides of saw blade.Yoke portion among sub- stator core on axis and yoke portion parallel to being wound with Exciting Windings for Transverse Differential Protection.

Each stator root portion of sub- stator core is wound with a centralized armature winding, in same sub- stator core Two armature winding coiling it is in opposite direction.

Fig. 5 is a kind of saw blade figure of electric saw direct drive unit embodiment two.It is evenly equipped with the saw blade circumference being fixed on axle 16 fan-shaped pylones, there is saw blade rib made of permeability magnetic material between two through holes;Housing passes through bearing and axis connection.

Fig. 6 is a kind of side view of bench saw direct drive unit embodiment two.Along the circumferential direction there are 6 Contraband saw blade periphery successively The sub- stator core of font, sub- stator core are fixed on housing;Every sub- stator core has two stator tooths extended to axle center, The side of stator tooth along the circumferential direction differs 30 degree in sector, adjacent sub- stator core;Upper set of 6 sub- stator cores in axle Into semicircle.Yoke portion coiling of the Exciting Windings for Transverse Differential Protection around six sub- stator cores;Circumferentially adjacent armature winding is around to identical.

It is similar, Exciting Windings for Transverse Differential Protection can also around the yoke portion coiling of every sub- stator core, adjacent Exciting Windings for Transverse Differential Protection around on the contrary, Circumferentially adjacent armature winding is around to opposite.

The operation principle of electric saw direct drive unit of the present invention is:

Because the saw blade and armature pole of the magnetic conduction of the present invention are alignment, therefore when the part of saw blade energy magnetic conduction is alignd with armature pole When, the magnetic resistance minimum of the armature pole linkage, the phase armature winding magnetic linkage are maximum;When the fan-shaped pylone of saw blade aligns armature pole, The magnetic resistance of the armature pole linkage is maximum, armature winding magnetic linkage is minimum.

When the part of saw blade energy magnetic conduction moves closer to armature pole, the self-induction of the phase armature winding is increasing;When saw blade energy When being partially disengaged armature pole of magnetic conduction, the self-induction of the phase armature winding are also reducing.Due to saw blade fan-shaped pylone number and armature The ingenious combination of pole number, the armature winding in every sub- stator core have its unique phase.

Because the magnetic linkage of the mutual inductance of the application armature winding, armature winding linkage is also constantly changing, so if Permanent magnet can provide excitation field and movable rotor is unshakable in one's determination, then armature winding can produce induced electromotive force.Here it is the application Principle of the motor as generator operation.

When the application motor is as motor running, positive electricity is passed to the phase winding for producing positive induced electromotive force Stream, then the winding can produce positive torque;Pass to forward current to the phase winding for producing negative induced electromotive force, then should be around Group can produce negative torque.

Claims (4)

  1. A kind of 1. electric saw direct drive unit, it is characterised in that:
    It is made up of axle, permanent magnet, saw blade, stator core, armature winding and housing;
    10 fan-shaped pylones are evenly equipped with the saw blade circumference being fixed on axle, have saw blade made of permeability magnetic material between two through holes Rib;Housing passes through bearing and axis connection;
    Along the circumferential direction there are 6 sub- stator cores of Contraband font saw blade periphery successively, and sub- stator core is fixed on housing;
    Every sub- stator core has two stator tooths extended to axle center, and the side of stator tooth is in sector, adjacent sub- stator core Along the circumferential direction differ 30 degree;6 sub- stator cores form semicircle in the top of axle;Two stator tooths pair of sub- stator core Claim the both sides for being distributed in saw blade;
    Yoke portion among sub- stator core is embedded with permanent magnet parallel to the yoke portion among axis and sub- stator core;Adjacent permanent magnet Magnetizing direction it is opposite;
    Each stator root portion of sub- stator core is wound with a centralized armature winding, and two in same sub- stator core The coiling of individual armature winding is in opposite direction;The coiling of the adjacent armature coil in sub- stator core is in opposite direction.
  2. A kind of 2. electric saw direct drive unit, it is characterised in that:
    It is made up of bearing, armature winding, Exciting Windings for Transverse Differential Protection, saw blade, stator core, housing and axle;
    16 fan-shaped pylones are evenly equipped with the saw blade circumference being fixed on axle, have saw blade made of permeability magnetic material between two through holes Rib;Housing passes through bearing and axis connection;
    Along the circumferential direction there are 6 sub- stator cores of Contraband font saw blade periphery successively, and sub- stator core is fixed on housing;
    Every sub- stator core has two stator tooths extended to axle center, and the side of stator tooth is in sector, adjacent sub- stator core Along the circumferential direction differ 30 degree;6 sub- stator cores form semicircle in the top of axle;Two stator tooths pair of sub- stator core Claim the both sides for being distributed in saw blade;
    Yoke portion among sub- stator core on axis and yoke portion parallel to being wound with Exciting Windings for Transverse Differential Protection;
    Each stator root portion of sub- stator core is wound with a centralized armature winding, and two in same sub- stator core The coiling of individual armature winding is in opposite direction.
  3. A kind of 3. electric saw direct drive unit as claimed in claim 2, it is characterised in that:
    Yoke portion coiling of the Exciting Windings for Transverse Differential Protection around six sub- stator cores;Circumferentially adjacent armature winding is around to identical.
  4. A kind of 4. electric saw direct drive unit as claimed in claim 2, it is characterised in that:
    Exciting Windings for Transverse Differential Protection is around the yoke portion coiling of every sub- stator core, and adjacent Exciting Windings for Transverse Differential Protection is around on the contrary, circumferentially adjacent Armature winding is around to opposite.
CN201710990014.6A 2017-10-23 2017-10-23 A kind of electric saw direct drive unit CN107553602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710990014.6A CN107553602A (en) 2017-10-23 2017-10-23 A kind of electric saw direct drive unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710990014.6A CN107553602A (en) 2017-10-23 2017-10-23 A kind of electric saw direct drive unit

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CN107553602A true CN107553602A (en) 2018-01-09

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Application Number Title Priority Date Filing Date
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005062739B3 (en) * 2005-12-22 2007-06-28 Raimann Holzoptimierung Gmbh & Co.Kg Sawing fixture, has electromagnetic drive exhibiting stator for generating electromagnetic field, where ring circular saw blade is formed as rotor that is displaceable in rotary motion by electromagnetic field of stator
CN101546927A (en) * 2009-04-23 2009-09-30 南京航空航天大学 [-shaped modular stator segmentation rotor switched reluctance motor
CN102639272A (en) * 2009-09-16 2012-08-15 威尔海姆-阿尔坦道夫两合公司 Circular final trimming saw having direct drive
DE102012200882A1 (en) * 2012-01-23 2013-07-25 Robert Bosch Gmbh Blade for rotor of electric machine i.e. hand-held power tool such as Fret saw, has blade segment arranged adjacent to permanent magnets, where permanent magnets in terminal lug are fixed in tangential direction of set of recesses
CN104190507A (en) * 2014-09-04 2014-12-10 河南工业大学 Self-driven rasping machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005062739B3 (en) * 2005-12-22 2007-06-28 Raimann Holzoptimierung Gmbh & Co.Kg Sawing fixture, has electromagnetic drive exhibiting stator for generating electromagnetic field, where ring circular saw blade is formed as rotor that is displaceable in rotary motion by electromagnetic field of stator
CN101546927A (en) * 2009-04-23 2009-09-30 南京航空航天大学 [-shaped modular stator segmentation rotor switched reluctance motor
CN102639272A (en) * 2009-09-16 2012-08-15 威尔海姆-阿尔坦道夫两合公司 Circular final trimming saw having direct drive
DE102012200882A1 (en) * 2012-01-23 2013-07-25 Robert Bosch Gmbh Blade for rotor of electric machine i.e. hand-held power tool such as Fret saw, has blade segment arranged adjacent to permanent magnets, where permanent magnets in terminal lug are fixed in tangential direction of set of recesses
CN104190507A (en) * 2014-09-04 2014-12-10 河南工业大学 Self-driven rasping machine

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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 Karen garden, Ma Shang Town, Zhangdian District, Zibo City, Zibo, Shandong 34, 419

Applicant before: Shi Liwei