CN107086723A - Stepless time adjustment motor - Google Patents

Stepless time adjustment motor Download PDF

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Publication number
CN107086723A
CN107086723A CN201710433643.9A CN201710433643A CN107086723A CN 107086723 A CN107086723 A CN 107086723A CN 201710433643 A CN201710433643 A CN 201710433643A CN 107086723 A CN107086723 A CN 107086723A
Authority
CN
China
Prior art keywords
internal rotor
component
time adjustment
guide pillar
rotor component
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.)
Pending
Application number
CN201710433643.9A
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Chinese (zh)
Inventor
何林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING LIHUA TECHNOLOGY Co Ltd
Original Assignee
CHONGQING LIHUA TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING LIHUA TECHNOLOGY Co Ltd filed Critical CHONGQING LIHUA TECHNOLOGY Co Ltd
Priority to CN201710433643.9A priority Critical patent/CN107086723A/en
Publication of CN107086723A publication Critical patent/CN107086723A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/12Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking

Abstract

The invention discloses a kind of stepless time adjustment motor, including housing, external stator component, internal rotor component and speed adjusting gear, external stator component is fixedly installed on case inside;Internal rotor component, which is rotated, to be arranged on the inside of external stator component, and is set to move axially with respect to external stator component;Speed adjusting gear is used to drive internal rotor component to be axially moveable to carry out speed governing to motor, and this motor can realize that stepless time adjustment, reliability are preferable and speed governing is easily controllable.

Description

Stepless time adjustment motor
Technical field
The present invention relates to machine field, and in particular to a kind of stepless time adjustment motor.
Background technology
Buncher is to utilize to change the rotating speed that the methods such as series, voltage, electric current, the frequency of motor change motor, so that Motor reaches a kind of motor of higher performance, and the speed regulating method of existing buncher generally has following several:One:Pressure regulation Speed governing, i.e., change motor stator voltage to realize speed governing by pressure regulation with transformer, if the pressure regulation of transformer has level, The speed governing of motor is also to have level, if the pressure regulation of transformer is stepless, then motor speed adjusting is also stepless, pressure regulation The power factor (PF) of speed governing is relatively low, there is harmonic wave interference, non-brake torque during normal operation;Two:Pole-changing control, i.e., it is electronic by changing The mode of connection of machine stator winding changes the magnetic pole logarithm of motor, so as to change synchronous rotational speed with the step, realizes electricity Motivation rotating speed step speed regulation, this buncher can not realize stepless smooth speed governing;Three:Weak-magnetic speed-regulating, i.e., in frequency converter pair In the speed governing of asynchronous machine, when the output frequency of frequency converter is higher than Rated motor frequency, electric machine iron core magnetic flux starts to weaken, and makes Motor speed is higher than rated speed, and this electric machine speed regulation mode can realize stepless time adjustment, and without additional slip loss, efficiency Height, speed-regulating range width.In addition, more for low-load run time, or play constantly running more frequently occasion, weak-magnetic speed-regulating can be with Reach the purpose of economize on electricity and protection motor.In addition, in addition to changing electric machine iron core magnetic flux using frequency converter and realizing weak-magnetic speed-regulating, mesh It is preceding to also have some motors to carry out weak-magnetic speed-regulating by way of driving that stator is axially translated and it is staggered with rotor, using this When mode carries out weak-magnetic speed-regulating, stator wiring will be driven to bend repeatedly simultaneously in stator moving process, easily produced in the course of time The risk that wiring fractures, influences the service life of motor, in addition, after motor stator movement, it will leave optimal radiating position, Cause the radiating of stator to be affected, finally will also influence the reliability of whole motor.
Therefore, be solve problem above, it is necessary to which one kind can realize that stepless time adjustment, reliability are preferable and speed governing is easily controllable Stepless time adjustment motor.
The content of the invention
It can realize that stepless time adjustment, reliability be preferable and that speed governing is easily controllable is electrodeless it is an object of the invention to provide a kind of Buncher.
The stepless time adjustment motor of the present invention, including housing, external stator component, internal rotor component and speed adjusting gear, it is described outer Stator module is fixedly installed on the case inside;The internal rotor component, which is rotated, to be arranged on the inside of the external stator component, and It is set to move axially with respect to the external stator component;The speed adjusting gear is used to drive the internal rotor component along axle To mobile with to motor progress speed governing;
Further, speed adjusting gear includes along the axially arranged screw rod of internal rotor component and with screw rod coordinated to carry out spiral biography Dynamic swivel nut;Swivel nut is connected in the way of axial restraint is circumferentially rotated with external stator component;
Further, in housing provided with least two through internal rotor component and with leading that the internal rotor component slippage coordinates Post, internal rotor component is outputed power by the guide pillar;
Further, swivel nut is moved back and forth vertically by end face bearing push-and-pull internal rotor component;
Further, swivel nut inner circle is formed with toroidal race, and end face bearing is two, and two ends spherical bearing is respectively in ring Shape seat ring axial direction both sides, internal rotor stack face is provided with the end face bearing block of T-shaped structure;The head of end face bearing block is coaxially fixed In the end face of internal rotor component, the bar portion of end face bearing block is through two ends spherical bearing and by the back-up ring that is secured to by both ends of the surface Bearing pushes against toroidal race both sides;
The stepless time adjustment motor of the present invention also includes speed governing power set and for by the dynamic retarding of speed governing power set It is transferred to the reducing gear of screw rod;
Further, guide pillar is circumferential uniform multiple along internal rotor component, and internal rotor component is fixed with for being slided with guide pillar The sliding sleeve of cooperation;
The stepless time adjustment motor of the present invention also includes the output flange axle being coaxially disposed with internal rotor component, the top of guide pillar Being connected to the ring flange of output flange axle is used to drive output flange axle to rotate;
Further, the guide pillar being connected for the bottom with guide pillar is fixed with the way of axial restraint is circumferentially rotated in housing Centering ring flange;
Further, swivel nut it is cylindrical on integrally formed with flange;Swivel nut passes through its flange and guide pillar centering flange side surface phase The mode supported realizes axial limiting.
The beneficial effects of the invention are as follows:The stepless time adjustment motor of the present invention, passes through speed adjusting gear controlled motor internal rotor group Part is moved axially with respect to stator, so as to change electric machine iron core magnetic flux, finally realizes the weak-magnetic speed-regulating of motor, this speed governing side Formula can make motor realize stepless smooth speed governing, and by controlling the amount of movement of internal rotor component just can be to being accurately controlled The synchronous rotational speed of motor, in addition, this mode of speed regulation can occasionally be prevented effectively from due to stator movement cause the reduction of whole electrical machinery life, The bad shortcoming of radiating.
Brief description of the drawings
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples:
Fig. 1 is overall schematic of the invention;
Fig. 2 is sectional view of the China and foreign countries' stator module of the present invention with internal rotor component when axially aligned;
Fig. 3 is the sectional view after China and foreign countries' stator module of the present invention staggers vertically with internal rotor component;
Fig. 4 is the structural representation of the speed adjusting gear of the present invention;
Fig. 5 is the connection diagram of the guide pillar of the present invention;
Fig. 6 is the screw rod of the present invention and the cooperation schematic diagram of swivel nut;
Fig. 7 is the arrangement schematic diagram of the end face bearing of the present invention;
Fig. 8 is the structural representation of the guide pillar of the present invention;
Fig. 9 is the structural representation of the end face bearing of the present invention.
Embodiment
As illustrated in fig. 1 and 2, the stepless time adjustment motor of the present embodiment include housing 3, external stator component 4, can be axially opposed Motor is set to carry out speed governing in the internal rotor component 9 of the movement of external stator component 4 and for driving internal rotor component 9 to be axially moveable Speed adjusting gear, wherein speed adjusting gear can using it is existing all can realize the drive mechanism that moves linearly repeatedly or driving dress Put, such as air cylinder, hydraulic cylinder, and electric cylinder or leading screw and nut mechanism, pass through the edge of speed adjusting gear controlled motor internal rotor component 9 Axially with respect to stator movement, so as to change electric machine iron core magnetic flux, the weak-magnetic speed-regulating of motor, this mode of speed regulation energy are finally realized Motor is enough set to realize stepless smooth speed governing, and by controlling the amount of movement of internal rotor component 9 just can be to being accurately controlled electricity The synchronous rotational speed of machine, in addition, this mode of speed regulation can be occasionally prevented effectively from because stator movement causes whole electrical machinery life to reduce, dissipate The bad shortcoming of heat.
In the present embodiment, speed adjusting gear include along the axially arranged screw rod 6 of internal rotor component 9 and with screw rod 6 coordinate into The swivel nut 8 of row worm drive;As shown in figure 4, swivel nut 8 is connected in the way of axial restraint is circumferentially rotated with rotor, wherein, screw rod 6 cooperatively form feed screw nut pair with swivel nut 8, by driving bolt to rotate swivel nut 8 can be made to move back and forth vertically, and swivel nut 8 It is connected with swivel nut 8 in the way of axial restraint is circumferentially rotated with rotor, therefore the rotation of internal rotor component 9 can't be with movable snail sleeve 8 rotate, and bolt moving back and forth vertically can drive the synchronizing moving of internal rotor component 9.
It is axially arranged and slide and match somebody with somebody with internal rotor component 9 along internal rotor component 9 provided with four in housing 3 in the present embodiment The guide pillar 10 of conjunction, internal rotor component 9 is outputed power by guide pillar 10, as shown in figure 5, corresponding vertically on internal rotor component 9 The via for passing through guide pillar 10 is offered, when carrying out speed governing to motor by speed adjusting gear, internal rotor component 9 passes through guide pillar 10 Guiding is axially moveable, and when motor works, three guide pillars 10 will together be rotated with internal rotor component 9, be connected by guide pillar 10 Motor output end is connect, the power of rotor is outwardly exported, now, guide pillar 10 plays a part of power transmission shaft, therefore, this knot Guide pillar 10 in structure can realize a multi-purpose purpose, substantially increase the compactedness of electric machine structure.
In the present embodiment, swivel nut 8 is moved back and forth vertically by the push-and-pull internal rotor component 9 of end face bearing 11, in this motor End face bearing 11 be provided with two, two end face bearings 11 be respectively used to push or pull on internal rotor component 9 along axis upwards and Move down, as shown in figure 8, end face bearing 11 is also referred to as plane bearing, kept by the plane with needle roller or cylindrical roller or steel ball Frame component and plane washer sets are into when motor works, rotor is rotated to be separated by end face bearing 11 with the realization of swivel nut 8.
In the present embodiment, the inner circle of swivel nut 8 is formed with toroidal race 12, and end face bearing 11 is two, and both ends of the surface axle Hold 11 and be respectively in the axial both sides of toroidal race 12, the end face of internal rotor component 9 is provided with the end face bearing block 14 of T-shaped structure;End face axle The end face of internal rotor component 9 is coaxially fixed on the head of bearing 14, and the bar portion of end face bearing block 14 passes through two ends spherical bearing 11 simultaneously Two ends spherical bearing 11 is pushed against by the both sides of toroidal race 12, as shown in figs. 4 and 7, this motor by the back-up ring that is secured to The circular trough with the head fits of end face bearing block 14, the bar portion of end face bearing block 14 are formed with the lower surface of internal rotor component 9 Screwed hole is offered, the bar portion lower end that back-up ring is fixed on to end face bearing block 14 is coordinated by a screw and screwed hole, spiral shell is tightened After nail, two ends spherical bearing 11 will be clamped in the head of end face bearing block 14 between toroidal race 12 and toroidal race 12 is with keeping off Between circle, formation axial restraint between internal rotor component 9 and swivel nut 8 is set to circumferentially rotate cooperation.
The stepless time adjustment motor of the present embodiment also includes speed governing power set and for the power of speed governing power set to be subtracted Speed is transferred to the reducing gear of screw rod 6, and speed governing power set are a stepper motor 5, and reducing gear is worm-and-wheel gear, this reality Apply in example, the lower end of screw rod 6, which is stretched out outside electric machine casing 3 and is fixed with a turbine, the output shaft of stepper motor 5, is coaxially fixed with a snail Bar, by controlling the rotation of the output shaft of stepper motor 5 to be accurately controlled the rotational angle and then internal rotor assembly of screw rod 6 The radially accurate control of 9 axial displacement.
In the present embodiment, guide pillar 10 circumferential uniform four along internal rotor component 9, as shown in Figure 5 and Figure 8, four guide pillars 10 It is distributed on same circumference, the sliding sleeve 13 for being slidably matched with guide pillar 10, sliding sleeve 13 is fixed with the via of internal rotor component 9 It should be made using high abrasion resisting material, smaller internal rotor component 9 reciprocatingly slides the wear extent of generation, the inner circle of sliding sleeve 13 should be carried out in addition Finishing makes it have higher fit precision between guide pillar 10, and then improves the accuracy of electric machine speed regulation.
The stepless time adjustment motor of the present embodiment also includes the output flange axle 2 being coaxially disposed with internal rotor component 9, exports method Blue axle 2 includes coaxial integrally formed ring flange and output shaft, as shown in figure 4, top and the flange hole of ring flange of guide pillar 10 Coordinate, the top of guide pillar 10 is provided with screwed hole, guide pillar 10 is realized with ring flange after coordinating by screw with screwed hole and be connected, interior turn Sub-component 9 rotate when, four guide pillars 10 around the axis of internal rotor component 9 rotate, and drive simultaneously whole output flange axle 2 rotate from And power is exported, splined hole 1 is offered on the output shaft of output flange axle 2, is easy to motor by the way of spline fitted Power is outwardly exported.
In the present embodiment, it is combined with housing 3 in the way of axial restraint is circumferentially rotated for connecting with the bottom of guide pillar 10 The guide pillar centering ring flange 16 connect, as shown in figures 2 and 5, guide pillar feels relieved ring flange 16 under the lower end of housing 3 setting, housing 3 End face inwall integrally extends a positioning sleeve 15 vertically, and guide pillar centering ring flange 16 is rotatably coordinated in the positioning by bearing Cover in 15 inner circles, be distributed with guide pillar centering ring flange 16 and correspond four flange holes coordinated with four guide pillars 10, each The upper and lower ends of guide pillar 10 are connected to the ring flange and guide pillar centering ring flange 16 of output flange axle 2, and internal rotor component 9 is rotated When, guide pillar centering ring flange 16 also will be with the synchronous axial system of internal rotor component 9.
In the present embodiment, integrally formed with flange 7 on swivel nut 8 is cylindrical;Swivel nut 8 passes through its flange 7 and guide pillar centering flange The mode that the end face of disk 16 offsets realizes axial limiting, as shown in figure 3, when motor internal rotor component 9 under the drive of swivel nut 8 along axle When moving upwardly into extreme position (in the present embodiment, external stator component 4 and internal rotor component 9 stagger half when for rotor movement Extreme position), the flange 7 of swivel nut 8 will prop up the guide pillar centering end face of ring flange 16, it is to avoid internal rotor component 9 continues to move up, and passes through The extreme position of rotor is adjusted when the position of adjustment flange 7 can be to electric machine speed regulation, so as to control the speed governing of whole motor Scope.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this Among the right of invention.

Claims (10)

1. a kind of stepless time adjustment motor, including housing, external stator component, internal rotor component and speed adjusting gear, it is characterised in that:
The external stator component is fixedly installed on the case inside;
The internal rotor component, which is rotated, to be arranged on the inside of the external stator component, and be set to can be axially with respect to described outer fixed Sub-component is moved;
The speed adjusting gear is used to drive the internal rotor component to be axially moveable to carry out speed governing to motor.
2. stepless time adjustment motor according to claim 1, it is characterised in that:The speed adjusting gear is included along the internal rotor The axially arranged screw rod of component and the swivel nut for coordinating progress worm drive with the screw rod;The swivel nut is circumferential with axial restraint Rotatable mode is connected with internal rotor component.
3. stepless time adjustment motor according to claim 1, it is characterised in that:In the housing institute is passed through provided with least two Internal rotor component and the guide pillar coordinated with internal rotor component slippage are stated, the internal rotor component is defeated by power by the guide pillar Go out.
4. stepless time adjustment motor according to claim 2, it is characterised in that:The swivel nut in end face bearing push-and-pull by turning Sub-component is moved back and forth vertically.
5. stepless time adjustment motor according to claim 4, it is characterised in that:The swivel nut inner circle is formed with annular seating Circle, the end face bearing is two, and end face bearing described in two is respectively in the axial both sides of toroidal race, the internal rotor assembly end Face is provided with the end face bearing block of T-shaped structure;The end face of internal rotor component, end face are coaxially fixed in the head of the end face bearing block The bar portion of bearing block through two ends spherical bearing and is pushed against toroidal race both sides by the back-up ring that is secured to by two ends spherical bearing.
6. stepless time adjustment motor according to claim 2, it is characterised in that:Also include speed governing power set and for that will adjust The dynamic retarding of quick-action power apparatus is transferred to the reducing gear of the screw rod.
7. stepless time adjustment motor according to claim 3, it is characterised in that:Also include coaxially setting with the internal rotor component The output flange axle put, the ring flange that the guide pillar is connected to output flange axle is used to drive the rotation of output flange axle that power is defeated Go out.
8. stepless time adjustment motor according to claim 7, it is characterised in that:It can circumferentially be turned with axial restraint in the housing Dynamic mode is combined with guide pillar centering ring flange;The guide pillar is connected to the ring flange and guide pillar centering method of the output flange axle Between blue disk.
9. stepless time adjustment motor according to claim 7, it is characterised in that:Integrally formed with convex on the swivel nut is cylindrical Edge;The swivel nut is felt relieved by way of flange side surface offsets its flange and guide pillar and realizes axial limiting.
10. stepless time adjustment motor according to claim 3, it is characterised in that:At least two guide pillar is evenly distributed, And the internal rotor component is fixed with the sliding sleeve for being slidably matched with guide pillar.
CN201710433643.9A 2017-06-09 2017-06-09 Stepless time adjustment motor Pending CN107086723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710433643.9A CN107086723A (en) 2017-06-09 2017-06-09 Stepless time adjustment motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710433643.9A CN107086723A (en) 2017-06-09 2017-06-09 Stepless time adjustment motor

Publications (1)

Publication Number Publication Date
CN107086723A true CN107086723A (en) 2017-08-22

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ID=59605607

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710433643.9A Pending CN107086723A (en) 2017-06-09 2017-06-09 Stepless time adjustment motor

Country Status (1)

Country Link
CN (1) CN107086723A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107979252A (en) * 2017-12-20 2018-05-01 江贵生 Asynchronous weak-magnetic speed-regulating motor
CN109274211A (en) * 2018-10-10 2019-01-25 浙江东方机电有限公司 A kind of adjustable blower of revolving speed multimode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107979252A (en) * 2017-12-20 2018-05-01 江贵生 Asynchronous weak-magnetic speed-regulating motor
CN109274211A (en) * 2018-10-10 2019-01-25 浙江东方机电有限公司 A kind of adjustable blower of revolving speed multimode

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