CN109802518A - Energy-saving three-phase asynchronous motor - Google Patents
Energy-saving three-phase asynchronous motor Download PDFInfo
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- CN109802518A CN109802518A CN201811654089.8A CN201811654089A CN109802518A CN 109802518 A CN109802518 A CN 109802518A CN 201811654089 A CN201811654089 A CN 201811654089A CN 109802518 A CN109802518 A CN 109802518A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The invention discloses energy-saving three-phase asynchronous motors, it includes large-size machine and the assistant starting mechanism being fixed with one with large-size machine, assistant starting mechanism can convey torsion to the rotor shaft of large-size machine, and realization is to the assistant starting of large-size machine, for the reduced-voltage starting mode of large-size machine in the prior art, present invention employs completely new mentalities of designing, the starting of large-size machine is realized by assistant starting mechanism, the case where especially suitable for frequent starting, reduce power consumption, the present invention irreversibly delivers power to big flywheel by assistant starting mechanism and is stored by big flywheel to kinetic energy, when the kinetic energy of big flywheel storage reaches maximum, rotor shaft from from big flywheel to large-size machine is conveyed into kinetic energy.
Description
Technical field
The present invention relates to motors, in particular to need the motor more particularly to threephase asynchronous machine of reduced-voltage starting.
Background technique
On startup, starting current is very big for three-phase motor, can reach 4-7 times of rated current, very big starting current,
Biggish voltage landing can be caused in short time on the line, this not only influences the starting of motor itself, also influences whether same
The normal work of other motor and electrical equipment on one route.For this purpose, when to large capacity motor and frequent start and stop, in order to
Limiting starting current, it is necessary to take reduced-voltage starting.
So-called reduced-voltage starting exactly reduces the voltage being added on motor stator winding, when electronic in motor start-up
After machine is turned over, then the voltage being added on stator winding is restored to normal value.
When present inventor team has developed a kind of system, i.e. starting of three phases motor that may replace reduced-voltage starting jointly
Decompression mode is not used.
Summary of the invention
For the reduced-voltage starting mode of large-size machine in the prior art, present invention employs completely new mentality of designing,
The starting that large-size machine is realized by assistant starting mechanism the case where especially suitable for frequent starting, reduces power consumption.
Energy-saving three-phase asynchronous motor comprising large-size machine and the auxiliary being fixed with one with large-size machine open
Motivation structure, assistant starting mechanism can convey torsion to the rotor shaft of large-size machine, and realize the auxiliary to large-size machine
Starting.
Above-mentioned technical proposal advanced optimizing and improving.
Assistant starting mechanism include the braced frame fixed with large-size machine shell, be fixedly connected with braced frame it is auxiliary
Motor is helped, braced frame is installed on and is connect with stand-by motor and can receive the stepless speed changing mechanism of stand-by motor power, it is stepless
The driving part of gear is connected to the output shaft of stand-by motor, and the slave unit of stepless speed changing mechanism is socketed with to be turned with rotor
The starting axis of axis coaxial line；
Big flywheel, level-one freewheel clutch, second level freewheel clutch are installed, above-mentioned starting axis is solid in the braced frame
Surely it is connected to the inner ring body of level-one freewheel clutch, the side of big flywheel towards starting axis is fixedly connected on level-one freewheel clutch
Outer ring body, the one end of big flywheel towards rotor shaft is movably connected on the inner ring body of second level freewheel clutch, rotor shaft
It is fixedly connected on the outer ring body of second level freewheel clutch, the torsion of starting axis can be realized by starting axis by level-one freewheel clutch
Unidirectional delivery is carried out to big flywheel；
Sliding sleeve is gone back in above-mentioned starting axis to be connected to and can start axis, power-assisted along the Enforceable shaft that starting axis center axis direction moves
The end that axis deviates rotor shaft is equipped with velocity response Puli's disk of both connections, and one end of Enforceable shaft towards rotor shaft is set
It is equipped on annular protrusion and annular protrusion and is provided with external splines, the appearance that can accommodate annular protrusion is provided at the center of big flywheel
Slot is set, the internal spline to match with the external splines on annular protrusion, the inner ring body of second level freewheel clutch are provided in accommodation groove
It is provided with the annular groove that can be matched with annular protrusion at center and is provided on annular groove and the external splines phase on annular protrusion
The internal spline matched；
Velocity response Puli disk can push Enforceable shaft along starting axis central axis move so that annular protrusion a part by
Accommodation groove moves to annular groove, and realizes that big flywheel establishes the connection of power transmitting by Enforceable shaft and second level freewheel clutch, leads to
It crosses second level freewheel clutch and realizes that torsion is transmitted to rotor shaft.
Above-mentioned technical proposal advanced optimizing and improving.
Velocity response Puli's disk includes the mobile disk being socketed on start outside axis, positioning disk, stress disk, starts axis
The position that mobile disk matches is provided with external splines, is provided with and is set to the external splines on starting axis in mobile disk and match
Internal spline, the middle position for starting axis is provided with cyclic annular limited block, is additionally provided with outside starting axis between cyclic annular limited block, movement
Reset spring between disk, the elastic force of reset spring can push mobile disk to be resetted to the direction for deviateing big flywheel, positioning disk
It is fixed on the end of starting axis, stress disk is installed between mobile disk and positioning disk, and is installed between stress disk and positioning disk
There is Puli pearl, the Puli pearl is for several and along the circumferencial direction arranged for interval of stress disk, the circumferencial direction of positioning disk
Be provided with the dovetail chute that can accommodate Puli pearl, the circumferencial direction of stress disk be provided with can be oriented to Puli pearl radially slide and
Towards the curved dovetail bent plate of big free wheel direction；The end that Enforceable shaft deviates big flywheel is connected with connecting elements, described
One end of connecting elements is flexibly connected Enforceable shaft end, the other end is fixedly connected with mobile disk.
Above-mentioned technical proposal advanced optimizing and improving.
Above-mentioned level-one freewheel clutch, second level freewheel clutch are ball-type freewheel clutch.
Above-mentioned technical proposal advanced optimizing and improving.
Above-mentioned connecting elements includes ring set, radially directed connecting link, axial connecting rod, and ring set is movably set in the end of Enforceable shaft
Portion, radially directed connecting link are provided with several and are evenly spaced on along the circumferencial direction of ring set, and radially directed connecting link is perpendicular to helping
It the axis direction of power axis and is fixedly connected with ring set, the suspension end of radially directed connecting link, which is fixedly connected, is parallel to Enforceable shaft axis
The axial connecting rod in line direction, and the suspension end of axial connecting rod is fixedly connected with mobile disk.
Above-mentioned technical proposal advanced optimizing and improving.
Above-mentioned braced frame includes structure and the frame a being coaxially disposed, frame b, frame c in a ring, frame a and big
The shell of capacity electrical machinery is fixedly connected, and is fixedly connected between frame a and frame b by connector, frame b and frame c it
Between be fixedly connected by connector, interval between frame a and frame b constitutes region a, between frame b and frame c between
Every constituting region b, above-mentioned big flywheel is installed in the b of region, and level-one freewheel clutch is installed on frame c, second level overdrive clutch
Device is installed on frame b.
Above-mentioned technical proposal advanced optimizing and improving.
The external fixing sleeve of the rotor shaft is connected to flabellum, and flabellum is installed in a of region.
Above-mentioned technical proposal advanced optimizing and improving.
The assistant starting mechanism includes the outer cover being fixedly connected with large-size machine shell, covers at stepless speed changer
Cover outside structure is fixedly installed in frame c, and stand-by motor is fixedly installed in cover, and stepless speed changing mechanism is installed on frame
c。
Above-mentioned technical proposal advanced optimizing and improving.
Above-mentioned stepless speed changing mechanism is CVT stepless speed changing mechanism.
Above-mentioned technical proposal advanced optimizing and improving.
Above-mentioned annular protrusion axial length is 2 times -3 times of annular groove depth.
Progress that the present invention obtains compared with prior art and its be advantageous in that, completely new starting side can be used
Formula reduces power consumption relative to existing reduced-voltage starting mode, the case where especially suitable for frequent starting.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is overall structure diagram of the invention.
Fig. 3 is the overall structure diagram of assistant starting mechanism of the invention.
Fig. 4 is the overall structure diagram of assistant starting mechanism of the invention.
Fig. 5 is the overall structure diagram of stepless speed changing mechanism of the invention.
Fig. 6 is the structural schematic diagram of stepless speed changing mechanism of the invention.
Fig. 7 is speed change Puli's dish structure schematic diagram in stepless speed changing mechanism.
Fig. 8 is speed change Puli's dish structure schematic diagram in stepless speed changing mechanism.
Fig. 9 is the fit structure schematic diagram of level-one of the invention, second level freewheel clutch and big flywheel.
Figure 10 is the structural schematic diagram of level-one of the invention, second level freewheel clutch.
Figure 11 is the fit structure schematic diagram of level-one of the invention, second level freewheel clutch and big flywheel.
Figure 12 is the structural schematic diagram of velocity response Puli's disk of the invention.
Figure 13 is the structural schematic diagram of velocity response Puli's disk of the invention.
It is denoted as in figure:
100- large-size machine；110- rotor shaft；
200- assistant starting mechanism；210- outer cover；220- stand-by motor；230- stepless speed changing mechanism；240- starts axis；250, it helps
Power axis；260- level-one freewheel clutch；270- second level freewheel clutch；280- flabellum；
300- braced frame；310- frame a；320- frame b；330- frame c；
The big flywheel of 400-；
500- velocity response Puli's disk；510- mobile disk；520- positioning disk；530- stress disk；540- connecting elements.
Specific embodiment
Energy-saving three-phase asynchronous motor comprising large-size machine 100 and be fixed with one with large-size machine 100
Assistant starting mechanism 200, assistant starting mechanism 200 can convey torsion to the rotor shaft 110 of large-size machine 100, and realize
To the assistant starting of large-size machine 100.
The assistant starting mechanism 200 includes the outer cover 210 being fixedly connected with 100 shell of large-size machine, outer cover 210
It is protected for each components to assistant starting mechanism 200, avoids dust entrance and other effects.
Assistant starting mechanism 200 includes the braced frame 300 fixed with 100 shell of large-size machine and braced frame 300
The stand-by motor 220 that is fixedly connected is installed on braced frame 300 and connect with stand-by motor 220 and can receive stand-by motor 220
The stepless speed changing mechanism 230 of power, the driving part of stepless speed changing mechanism 230 is connected to the output shaft of stand-by motor 220, stepless
The slave unit of gear 230 is socketed with the starting axis 240 with 110 coaxial line of rotor shaft.
Above-mentioned stepless speed changing mechanism 230 is preferably CVT stepless speed changing mechanism, when stand-by motor 220 starts, stand-by motor
220 output power to the driving part of stepless speed changing mechanism 230 transmit, and from the driving part of stepless speed changing mechanism 230 to
Its slave unit transmitting, to drive the rotation of starting axis 240；When the revolving speed of stand-by motor 220 is getting faster, variable speed
Adaptive change occurs for the transmission ratio of mechanism, and realizes that the revolving speed of starting axis 240 steps up.
Above-mentioned stepless speed changing mechanism 230 and CVT stepless speed changing mechanism is existing routine techniques, can also be using existing
There is the other similar structure in technology to be substituted, is repeated no more in the present invention.
In order to protect stepless speed changing mechanism 230, it is also connected in the braced frame 300 and covers at stepless change
Cover outside fast mechanism 230.
Big flywheel 400, level-one freewheel clutch 260, second level freewheel clutch are installed in the braced frame 300
270, above-mentioned starting axis 240 is fixedly connected on the inner ring body of level-one freewheel clutch 260, and big flywheel 400 is towards starting axis 240
Side be fixedly connected on the outer ring body of level-one freewheel clutch 260, the one end of big flywheel 400 towards rotor shaft 110 is living
The dynamic inner ring body for being connected to second level freewheel clutch 270, rotor shaft 110 are fixedly connected on the outer of second level freewheel clutch 270
Circle body can realize the torsion of starting axis 240 from starting axis 240 to big flywheel by level-one freewheel clutch 260 particularly importantly
400 carry out unidirectional delivery.
Further to embody, above-mentioned level-one freewheel clutch 260, second level freewheel clutch 270 are that ball-type is super
More clutch.
400 turns of big flywheel is driven by level-one freewheel clutch 260 after the power of the starting reception stand-by motor 220 of axis 240
Dynamic, since big flywheel sole mass is larger, the revolving speed of big flywheel 400 moves to maximum by zero and realizes accumulation of energy, this stage, big to fly
The kinetic energy of wheel 400 is stepped up, and since big flywheel 400 is flexibly connected with the inner ring body of second level freewheel clutch 270, and is made big
The torsion of flywheel 400 is not yet transmitted to rotor shaft 110.
Above-mentioned braced frame 300 includes structure in a ring and the frame a310 being coaxially disposed, frame b320, frame
C330, frame a310 are fixedly connected with the shell of large-size machine 100, between frame a310 and frame b320 by connector into
Row is fixedly connected, and is fixedly connected between frame b320 and frame c330 by connector, frame a310 and frame b320 it
Between interval constitute region a, interval between frame b320 and frame c330 constitutes region b, and above-mentioned big flywheel 400 is installed on
In the b of region, level-one freewheel clutch 260 is installed on frame c330, and second level freewheel clutch 270 is installed on frame b320, is provide with
Cover outside stepless speed changing mechanism 230 is fixedly installed in frame c330, and stand-by motor 400 is fixedly installed in cover,
Stepless speed changing mechanism 230 is installed on frame c330.
Further to carry out structure optimization to large-size machine 100, guarantee the heat dissipation performance of large-size machine 100, institute
The external fixing sleeve for the rotor shaft 110 stated is connected to flabellum 280, and flabellum 280 is installed in a of region.
Going back that sliding sleeve is connected in above-mentioned starting axis 240 can be along the Enforceable shaft that moves of starting 240 central axial direction of axis
250, the end that starting axis 240, Enforceable shaft 250 deviate rotor shaft 110 is equipped with velocity response Puli's disk of both connections
500, one end of Enforceable shaft 250 towards rotor shaft 110 is provided on annular protrusion and annular protrusion and is provided with external splines, greatly
It is provided with the accommodation groove that can accommodate annular protrusion at the center of flywheel 400, is provided in accommodation groove and the outer flower on annular protrusion
The internal spline that key matches is provided with the ring that can be matched with annular protrusion at the inner ring body center of second level freewheel clutch 270
The internal spline to match with the external splines on annular protrusion is provided on slot and annular groove；When the revolving speed of starting axis 240 reaches pre-
If when revolving speed, 500 generating state of velocity response Puli disk switches and Enforceable shaft 250 is pushed to send out along the central axis of starting axis 240
Raw movement so that annular protrusion a part moves to annular groove by accommodation groove, and realizes that big flywheel 400 passes through Enforceable shaft 250 and two
Grade freewheel clutch 270 establishes the connection of power transmitting, passes through second level freewheel clutch 270 and realizes torsion to rotor shaft
110 are transmitted.
More specifically, above-mentioned annular protrusion axial length is 2 times -3 times of annular groove depth.
When rotor shaft 110 reaches starting revolving speed, stand-by motor 220 powers off and stops power transmission, at this point, starting axis
240 stop operating, and velocity response Puli disk 500 automatically resets and the annular protrusion of 250 end of Enforceable shaft is resetted by annular groove
It moves in accommodation groove, realizes being disconnected for big flywheel 400 and second level freewheel clutch 270.Big flywheel 400 is in effect of inertia
Under, traction Enforceable shaft 250 is continued into idle running therewith until stopping；Large-size machine 100 is powered after starting, and revolving speed steps up,
Second level freewheel clutch 270 has unidirectional delivery performance, so that torsion can only be transmitted from big flywheel to rotor shaft 110,
Under the action of second level freewheel clutch 270, so that the torsion of rotor shaft 110 is not transmitted to big flywheel 400, big flywheel 400
It carries out rotating under effect of inertia simultaneously until stopping, and Enforceable shaft follows big flywheel 400 dally until stopping.
The velocity response Puli disk 500 include be socketed on starting axis 240 outside mobile disk 510, positioning disk 520,
The position that stress disk 530, starting axis 240 and mobile disk 510 match is provided with external splines, is provided with and sets in mobile disk 510
The middle position of the internal spline that the external splines being placed on starting axis 240 matches, starting axis 240 is provided with cyclic annular limited block, opens
The reset spring being additionally provided between cyclic annular limited block, mobile disk 510 outside moving axis 240, the elastic force of reset spring can push
Mobile disk 510 is resetted to the direction for deviateing big flywheel 400, and positioning disk 520 is fixed on the end of starting axis 240, stress disk
530 are installed between mobile disk 510 and positioning disk 520, and Puli pearl is equipped between stress disk 530 and positioning disk 520, institute
For several and along the circumferencial direction arranged for interval of stress disk 530, the circumferencial direction of positioning disk 520 is provided with the Puli pearl stated
The dovetail chute of Puli pearl can be accommodated, the circumferencial direction of stress disk 530 is provided with and can be oriented to Puli pearl and radially slide and court
To the big curved dovetail bent plate in 400 direction of flywheel；The end that Enforceable shaft 250 deviates big flywheel 400 is connected with connecting elements
540, one end of the connecting elements 540 is flexibly connected 250 end of Enforceable shaft, the other end is fixedly connected with mobile disk 510.
It will be apparent that velocity response Puli disk 500, which follows, to be opened when the revolving speed for starting axis 240 steps up and reaches maximum
Moving axis 240 rotates, the Puli pearl in velocity response Puli disk 500 with revolving speed promotion and obtain larger centrifugal force, Pu Lizhu
Dovetail bent plate will be slided and pushed along dovetail chute, to apply pressure to stress disk 530, mobile disk 510, and push mobile disk
510 overcome the elastic force of reset spring mobile towards the direction of big flywheel 400, and the movement and traction of mobile disk 510 are secured to connect
The connecting elements 540 that connects and synchronous with the Enforceable shaft 250 that connecting elements 540 is flexibly connected towards the movement of big flywheel 400, from
And it realizes annular protrusion and moves in annular groove.
More specifically, above-mentioned connecting elements 540 includes ring set, radially directed connecting link, axial connecting rod, ring set movable sleeve
Set on the end of Enforceable shaft 250, radially directed connecting link is provided with several and is evenly spaced on along the circumferencial direction of ring set, diameter
It is fixedly connected perpendicular to the axis direction of Enforceable shaft and to connecting rod with ring set, the suspension end of radially directed connecting link is fixedly connected
It is parallel to the axial connecting rod of Enforceable shaft axis direction, and the suspension end of axial connecting rod is fixedly connected with mobile disk 510.
Claims (10)
1. energy-saving three-phase asynchronous motor, which is characterized in that it includes large-size machine and to be connected with large-size machine be one
The assistant starting mechanism of body, assistant starting mechanism can convey torsion to the rotor shaft of large-size machine, and realize to large capacity
The assistant starting of motor.
2. energy-saving three-phase asynchronous motor according to claim 1, which is characterized in that assistant starting mechanism includes and great Rong
The fixed braced frame of amount motor housing, the stand-by motor being fixedly connected with braced frame, be installed on braced frame and with auxiliary
Motor connection and the stepless speed changing mechanism that can receive stand-by motor power, the driving part of stepless speed changing mechanism are connected to auxiliary electricity
The output shaft of machine, the slave unit of stepless speed changing mechanism are socketed with the starting axis with rotor shaft coaxial line；
Big flywheel, level-one freewheel clutch, second level freewheel clutch are installed, above-mentioned starting axis is solid in the braced frame
Surely it is connected to the inner ring body of level-one freewheel clutch, the side of big flywheel towards starting axis is fixedly connected on level-one freewheel clutch
Outer ring body, the one end of big flywheel towards rotor shaft is movably connected on the inner ring body of second level freewheel clutch, rotor shaft
It is fixedly connected on the outer ring body of second level freewheel clutch, the torsion of starting axis can be realized by starting axis by level-one freewheel clutch
Unidirectional delivery is carried out to big flywheel；
Sliding sleeve is gone back in above-mentioned starting axis to be connected to and can start axis, power-assisted along the Enforceable shaft that starting axis center axis direction moves
The end that axis deviates rotor shaft is equipped with velocity response Puli's disk of both connections, and one end of Enforceable shaft towards rotor shaft is set
It is equipped on annular protrusion and annular protrusion and is provided with external splines, the appearance that can accommodate annular protrusion is provided at the center of big flywheel
Slot is set, the internal spline to match with the external splines on annular protrusion, the inner ring body of second level freewheel clutch are provided in accommodation groove
It is provided with the annular groove that can be matched with annular protrusion at center and is provided on annular groove and the external splines phase on annular protrusion
The internal spline matched；
Velocity response Puli disk can push Enforceable shaft along starting axis central axis move so that annular protrusion a part by
Accommodation groove moves to annular groove, and realizes that big flywheel establishes the connection of power transmitting by Enforceable shaft and second level freewheel clutch, leads to
It crosses second level freewheel clutch and realizes that torsion is transmitted to rotor shaft.
3. energy-saving three-phase asynchronous motor according to claim 2, which is characterized in that the velocity response Puli Pan Bao
The mobile disk being socketed on outside starting axis, positioning disk, stress disk are included, the position that starting axis and mobile disk match is provided with outer flower
Key is provided with and is set to the internal spline that the external splines on starting axis matches in mobile disk, starts the middle position setting of axis
There are cyclic annular limited block, the reset spring being additionally provided between cyclic annular limited block, mobile disk outside starting axis, the bullet of reset spring
Power can push mobile disk to be resetted to the direction for deviateing big flywheel, and positioning disk is fixed on the end of starting axis, the installation of stress disk
Between mobile disk and positioning disk, and Puli pearl is installed between stress disk and positioning disk, the Puli pearl is several
And along the circumferencial direction arranged for interval of stress disk, the circumferencial direction of positioning disk is provided with the dovetail chute that can accommodate Puli pearl,
The circumferencial direction of stress disk is provided with and can be oriented to Puli pearl and radially slide and towards the curved dovetail bent plate of big free wheel direction；
The end that Enforceable shaft deviates big flywheel is connected with connecting elements, and one end of the connecting elements is flexibly connected power-assisted shaft end
Portion, the other end are fixedly connected with mobile disk.
4. energy-saving three-phase asynchronous motor according to claim 2, which is characterized in that above-mentioned level-one freewheel clutch,
Second level freewheel clutch is ball-type freewheel clutch.
5. energy-saving three-phase asynchronous motor according to claim 3, which is characterized in that above-mentioned connecting elements includes ring
Set, radially directed connecting link, axial connecting rod, ring set are movably set in the end of Enforceable shaft, and radially directed connecting link is provided with several simultaneously
And be evenly spaced on along the circumferencial direction of ring set, radially directed connecting link perpendicular to Enforceable shaft axis direction and fixed with ring set
Connection, the suspension end of radially directed connecting link are fixedly connected with the axial connecting rod for being parallel to Enforceable shaft axis direction, and axial
The suspension end of connecting rod is fixedly connected with mobile disk.
6. energy-saving three-phase asynchronous motor according to claim 2, which is characterized in that above-mentioned braced frame includes in ring
Shape structure and the frame a being coaxially disposed, frame b, frame c, frame a is fixedly connected with the shell of large-size machine, frame a with
It is fixedly connected between frame b by connector, is fixedly connected between frame b and frame c by connector, frame a
Interval between frame b constitutes region a, and the interval between frame b and frame c constitutes region b, and above-mentioned big flywheel is installed on
In the b of region, level-one freewheel clutch is installed on frame c, and second level freewheel clutch is installed on frame b.
7. energy-saving three-phase asynchronous motor according to claim 6, which is characterized in that the outside of the rotor shaft is solid
Surely it is socketed with flabellum, and flabellum is installed in a of region.
8. energy-saving three-phase asynchronous motor according to claim 6, which is characterized in that the assistant starting mechanism includes
The outer cover being fixedly connected with large-size machine shell, the cover covered at outside stepless speed changing mechanism are fixedly installed in frame c, and
And stand-by motor is fixedly installed in cover, stepless speed changing mechanism is installed on frame c.
9. the energy-saving three-phase asynchronous motor according to any one of claim 2-8, which is characterized in that above-mentioned is stepless
Gear is CVT stepless speed changing mechanism.
10. the energy-saving three-phase asynchronous motor according to any one of claim 2-8, which is characterized in that above-mentioned ring
Shape protrusion axial length is 2 times -3 times of annular groove depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811654089.8A CN109802518B (en) | 2018-12-27 | 2018-12-27 | Energy-saving three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811654089.8A CN109802518B (en) | 2018-12-27 | 2018-12-27 | Energy-saving three-phase asynchronous motor |
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| Publication Number | Publication Date |
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| CN109802518A true CN109802518A (en) | 2019-05-24 |
| CN109802518B CN109802518B (en) | 2019-12-17 |
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| CN108556623A (en) * | 2018-04-26 | 2018-09-21 | 芜湖七创工业设计有限公司 | The method of the multidirectional balance control soft starting of automobile balance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050093382A1 (en) * | 2003-10-30 | 2005-05-05 | A. O. Smith Corporation | Electric motor having a reverse air flow cooling system |
| CN201111324Y (en) * | 2007-02-05 | 2008-09-03 | 刘跃群 | Energy-saving apparatus of motor |
| CN201708637U (en) * | 2010-04-02 | 2011-01-12 | 马成习 | Driving device of oil pumping unit |
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| Publication number | Publication date |
|---|---|
| CN109802518B (en) | 2019-12-17 |
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