CN107017730A - The wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband - Google Patents

The wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband Download PDF

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Publication number
CN107017730A
CN107017730A CN201710369330.1A CN201710369330A CN107017730A CN 107017730 A CN107017730 A CN 107017730A CN 201710369330 A CN201710369330 A CN 201710369330A CN 107017730 A CN107017730 A CN 107017730A
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CN
China
Prior art keywords
bearing
support
regulating
frequency conversion
inlet wire
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
CN201710369330.1A
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Chinese (zh)
Inventor
陈正方
王宁
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Zhongda Motors Co Ltd
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Zhongda Motors Co Ltd
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Filing date
Publication date
Application filed by Zhongda Motors Co Ltd filed Critical Zhongda Motors Co Ltd
Priority to CN201710369330.1A priority Critical patent/CN107017730A/en
Publication of CN107017730A publication Critical patent/CN107017730A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225Terminal boxes or connection arrangements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K17/00Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02Asynchronous induction motors
    • H02K17/12Asynchronous induction motors for multi-phase current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present invention relates to a kind of wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband, support is the cylinder barrel of the axle centered on rotating shaft, fore bearing, cast-aluminum rotor and rear bearing are cased with rotating shaft successively, winding stator core has been cased with the outside of cast-aluminum rotor, there is winding stator core to be fitted in support, forward and backward bearing is separately mounted to front end, in the bearing chamber of rear end cap, and forward and backward end cap is fixed with support, it is characterised in that:Independent cooling fan of the support provided with several wire outlet seats and upright structures, wire outlet seat is welded on the different azimuth of support, and line outlet is stamped on outlet cover plate, one of wire outlet seat and terminal box is housed;The present invention makes motor inlet-outlet line mode various, good cooling results by setting the wire outlet seat of several different azimuths and the independent cooling fan of upright structures on support, and the electric motor structure is compact, voltage range is big, tuning range is wide, and operation stability is high, safe and reliable.

Description

The wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband
Technical field
The present invention relates to a kind of adjustable frequency motor, especially a kind of wide many inlet wire explosion-proof frequency conversion speed governing three of pressure of wideband are different Motor is walked, belongs to the technical field of flame proof frequency conversion special (type) motor.
Background technology
At present, domestic explosion-proof frequency conversion speed-regulating three-phase asynchronous motor generally uses rated voltage frequency modulation, voltage pulsation model ± 5% is enclosed, voltage adjustable extent is narrow, and motor inlet-outlet line mode fixed single, usually eject line(Somewhat special is left outlet Or right outlet), while cooling blower is arranged on the afterbody of motor, the axial dimension of the motor considerably increased, motor Overall length is longer.
The scope of application of existing motor is very limited, it is impossible to meet the demand of client, especially external client, Ke Huyi As require that Width funtion frequency modulation or many inlet wires or motor overall length are required, be more very it is several require unification, existing flame-proof type Frequency converting speed regulating three-phase asynchronous electromotor can not just meet customer need.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art to become there is provided a kind of wide many inlet wire flame-proof types of pressure of wideband Frequency speed-regulating three-phase asynchronous motor, its compact conformation, voltage range is big, tuning range is wide, and wire leading method is various, cooling effect Good, operation stability is high, safe and reliable.
To realize above technical purpose, the technical solution adopted by the present invention is:The wide many inlet wire explosion-proof frequency conversions of pressure of wideband are adjusted Fast threephase asynchronous, including support and rotating shaft, the support be in the cylinder barrel of the axle centered on rotating shaft, the rotating shaft according to Secondary be socketed with the outside of fore bearing, cast-aluminum rotor and rear bearing, the cast-aluminum rotor has been cased with winding stator core, described to have winding Stator core hot jacket is fitted in support, and the fore bearing and rear bearing are separately mounted to the bearing that drive end bearing bracket and rear end cap are formed Interior, the drive end bearing bracket and rear end cap are fixed by nut with support, it is characterised in that:The support goes out provided with several Line seat, several described wire outlet seats are welded on the conplane different azimuth of support, and the line outlet of the wire outlet seat is stamped outlet Cover plate, the outlet cover plate is fixed by bolt with wire outlet seat, and the terminal box for inlet wire is provided with one of wire outlet seat, Independent cooling fan is also equipped with the support, the independent cooling fan uses upright structures.
Further, the fore bearing is by fore bearing enclosing cover and fore bearing inner cap axial restraint, and the rear bearing passes through Internal bearing cover and rear bearing end cover axial restraint afterwards, are provided with preceding oil scraper ring between the fore bearing enclosing cover and fore bearing, it is described after Rear oil scraper ring is provided between bearing end cover and rear bearing.
Further, in addition to oiling needle tubing, the oiling needle tubing includes preceding oiling needle tubing and rear oiling needle tubing, it is described before Oiling needle tubing is plugged in fore bearing enclosing cover, and the fore bearing enclosing cover and drive end bearing bracket are equipped with the pipeline towards fore bearing, described Preceding oiling needle tubing is connected by pipeline with bearing chamber;The rear oiling needle tubing is plugged in rear bearing end cover, outside the rear bearing Lid and rear end cap are equipped with the pipeline towards rear bearing, and the rear oiling needle tubing is connected by pipeline with bearing chamber.
Further, the rotating shaft stretches out the end of drive end bearing bracket provided with axis.
Further, ventilating duct and internal fan are additionally provided between the cast-aluminum rotor and rear bearing, the ventilating duct and interior Fan is socketed in rotating shaft.
Further, the support is welded using steel plate, and two foot-supporting frames are additionally provided with support.
From the above, it can be seen that the technical effects of the invention are that:
1)The multiple wire outlet seats of use of the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband of the present invention are welded on The different azimuth of support, is easy to multi-faceted outlet;
2)A terminal box wire outlet seat installed therein for inlet wire, and according to actual inlet wire situation, terminal box is set Installation site, inlet wire is convenient, flexible;
3)The independent cooling fan installed on support, using upright structures, compared with existing structure, substantially reduces electricity The axial dimension of motivation, has been effectively compressed the total length of motor.
Brief description of the drawings
Fig. 1 is the upper profile of front view of the present invention.
Fig. 2 is Fig. 1 left view.
Description of reference numerals:Oiling device, 5- fore bearings, 6- before oil scraper ring, 4- before 1- axles card, 2- fore bearings enclosing cover, 3- Drive end bearing bracket, 7- fore bearings inner cap, 8- supports, 9- have wound stator iron core, 10- rotating shafts, 11- cast-aluminum rotors, 12- ventilating ducts, 13- Kept off after internal fan, 14- after internal bearing cover, 15- rear end caps, 16- after oiling device, 17- after bearing, 18- after bearing end cover, 19- Oil ring, 20- terminal boxes, 21- outlets cover plate, 22- foot-supporting frames, 23- independent cooling fans, 24- wire outlet seats.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
With reference to the accompanying drawings shown in 1 and Fig. 2, the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband, including machine Seat 8 and rotating shaft 10, the support 8 is the cylinder barrel of the axle centered on rotating shaft 10, and fore bearing is socketed with successively in the rotating shaft 10 5th, cast-aluminum rotor 11, ventilating duct 12, internal fan 13 and rear bearing 17, the outside of cast-aluminum rotor 11 have been cased with winding stator core 9, described to have the hot jacket of winding stator core 9 to be fitted in support 8, the fore bearing 5 and rear bearing 17 are separately mounted to drive end bearing bracket 6 In the bearing chamber of the formation of rear end cap 15, the drive end bearing bracket 6 and rear end cap 15 are fixed by nut with support 8, the rotating shaft 10 ends for stretching out drive end bearing bracket 6 are provided with axis 1, it is characterised in that:The support 8 is provided with several wire outlet seats 24, if described A dry wire outlet seat 24 is welded on the conplane different azimuth of support 8, and the line outlet of the wire outlet seat 24 is stamped outlet cover plate 21, The outlet cover plate 21 is fixed by bolt with wire outlet seat 24, and the terminal box for inlet wire is provided with one of wire outlet seat 24 20, independent cooling fan 23 is also equipped with the support 8, and the independent cooling fan 23 uses upright structures, the machine Seat 8 is welded using steel plate, and two foot-supporting frames 22 are additionally provided with support 8.
The fore bearing 5 is by fore bearing enclosing cover 2 and the axial restraint of fore bearing inner cap 7, and the rear bearing 17 passes through rear axle Inner cap 14 and the axial restraint of rear bearing end cover 18 are held, preceding oil scraper ring 3 is provided between the fore bearing enclosing cover 2 and fore bearing 5, it is described It is provided with afterwards between bearing end cover 18 and rear bearing 17 in rear oil scraper ring 19, the fore bearing enclosing cover 2 and rear bearing end cover 18 respectively Preceding oiling needle tubing 4 and rear oiling needle tubing 16 are plugged with, and the fore bearing enclosing cover 2 and drive end bearing bracket 6 are equipped with towards fore bearing 5 Pipeline, the rear bearing end cover 18 is connected with bearing chamber by pipeline for the preceding oiling needle tubing 4 and rear end cap 15 is equipped with and led to The pipeline of bearing 17 afterwards, the rear oiling needle tubing 16 is connected by pipeline with bearing chamber.
It is a feature of the present invention that multiple wire outlet seats 24 are set on the support 8 of motor, terminal box 20 installed therein one On individual wire outlet seat 24, for inlet wire, according to actual inlet wire situation, the installation site of terminal box 20 is set, remaining wire outlet seat 24 is used Outlet cover plate 21 is encapsulated, and multiple wire outlet seats 24 are arranged on conplane different azimuth, facilitate multi-faceted outlet;Front and rear setting is not Oiling needle tubing is shut down, prevents front and back bearings from getting rusty;Independent cooling fan 23 uses upright structures, substantially reduces motor Axial length.The electric motor structure is compact, and voltage range is big, tuning range is wide, and inlet-outlet line mode is various, good cooling results, fortune Row stability is high, safe and reliable.
Above to the present invention and embodiments thereof be described, the description does not have restricted, shown in accompanying drawing also only It is one of embodiments of the present invention, actual structure is not limited thereto.If one of ordinary skill in the art is opened by it Show, without departing from the spirit of the invention, the structure side similar to the technical scheme is designed without creative Formula and embodiment, all should belong to protection scope of the present invention.

Claims (6)

1. the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband, including support(8)And rotating shaft(10), the machine Seat(8)It is with rotating shaft(10)Centered on axle cylinder barrel, the rotating shaft(10)On be socketed with fore bearing successively(5), cast-aluminum rotor (11)With rear bearing(17), the cast-aluminum rotor(11)Outside has been cased with winding stator core(9), it is described to have winding stator core (9)Hot jacket is fitted in support(8)It is interior, the fore bearing(5)With rear bearing(17)It is separately mounted to drive end bearing bracket(6)And rear end cap (15)In the bearing chamber of formation, the drive end bearing bracket(6)And rear end cap(15)Pass through nut and support(8)Fixed, its feature exists In:The support(8)It is provided with several wire outlet seats(24), several described wire outlet seats(24)It is welded on support(8)It is same flat The different azimuth in face, the wire outlet seat(24)Line outlet be stamped outlet cover plate(21), the outlet cover plate(21)Pass through bolt With wire outlet seat(24)It is fixed, one of wire outlet seat(24)On terminal box for inlet wire is installed(20), the support(8)On It is also equipped with independent cooling fan(23), the independent cooling fan(23)Using upright structures.
2. the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband according to claim 1, its feature exists In:The fore bearing(5)Pass through fore bearing enclosing cover(2)With fore bearing inner cap(7)Axial restraint, the rear bearing(17)By rear Internal bearing cover(14)With rear bearing end cover(18)Axial restraint, the fore bearing enclosing cover(2)And fore bearing(5)Between be provided with front Oil ring(3), the rear bearing end cover(18)With rear bearing(17)Between be provided with rear oil scraper ring(19).
3. the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband according to claim 1, its feature exists In:Also include oiling needle tubing, the oiling needle tubing includes preceding oiling needle tubing(4)With rear oiling needle tubing(16), the preceding oiling pin Pipe(4)It is plugged on fore bearing enclosing cover(2)It is interior, the fore bearing enclosing cover(2)And drive end bearing bracket(6)It is equipped with towards fore bearing(5)'s Pipeline, the preceding oiling needle tubing(4)Connected by pipeline with bearing chamber;The rear oiling needle tubing(16)It is plugged on rear bearing end cover (18)It is interior, the rear bearing end cover(18)And rear end cap(15)It is equipped with towards rear bearing(17)Pipeline, the rear oiling pin Pipe(16)Connected by pipeline with bearing chamber.
4. the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband according to claim 1, its feature exists In:The rotating shaft(10)Stretch out drive end bearing bracket(6)End be provided with axis(1).
5. the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband according to claim 1, its feature exists In:The cast-aluminum rotor(11)With rear bearing(17)Between be additionally provided with ventilating duct(12)And internal fan(13), the ventilating duct (12)And internal fan(13)It is socketed in rotating shaft(10)On.
6. the wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband according to claim 1, its feature exists In:The support(8)It is welded using steel plate, and support(8)On be additionally provided with two foot-supporting frames(22).
CN201710369330.1A 2017-05-23 2017-05-23 The wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband Pending CN107017730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710369330.1A CN107017730A (en) 2017-05-23 2017-05-23 The wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710369330.1A CN107017730A (en) 2017-05-23 2017-05-23 The wide many inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband

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CN107017730A true CN107017730A (en) 2017-08-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107769429A (en) * 2017-12-07 2018-03-06 中车永济电机有限公司 The stator core fixed structure of aluminum support motor
CN114204757A (en) * 2021-11-26 2022-03-18 宁夏西北骏马电机制造股份有限公司 Manufacturing method of explosion-proof variable-frequency low-speed direct-drive water-cooling type three-phase asynchronous motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983661A (en) * 2012-12-10 2013-03-20 文登奥文电机有限公司 Motor base structure
CN204205893U (en) * 2014-12-03 2015-03-11 佛山市顺德区信源电机有限公司 The special frequency-changing three-phase asynchronous motor of a kind of energy-saving water pump
CN204652119U (en) * 2015-05-06 2015-09-16 德州恒力电机有限责任公司 A kind of split type explosion-proof type three-phase asynchronous motor junction box
CN105006904A (en) * 2015-08-11 2015-10-28 中达电机股份有限公司 High efficiency compact type high voltage explosion-proof motor
CN206850581U (en) * 2017-05-23 2018-01-05 中达电机股份有限公司 The wide more inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983661A (en) * 2012-12-10 2013-03-20 文登奥文电机有限公司 Motor base structure
CN204205893U (en) * 2014-12-03 2015-03-11 佛山市顺德区信源电机有限公司 The special frequency-changing three-phase asynchronous motor of a kind of energy-saving water pump
CN204652119U (en) * 2015-05-06 2015-09-16 德州恒力电机有限责任公司 A kind of split type explosion-proof type three-phase asynchronous motor junction box
CN105006904A (en) * 2015-08-11 2015-10-28 中达电机股份有限公司 High efficiency compact type high voltage explosion-proof motor
CN206850581U (en) * 2017-05-23 2018-01-05 中达电机股份有限公司 The wide more inlet wire explosion-proof frequency conversion speed-regulating three-phase asynchronous motors of pressure of wideband

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107769429A (en) * 2017-12-07 2018-03-06 中车永济电机有限公司 The stator core fixed structure of aluminum support motor
CN114204757A (en) * 2021-11-26 2022-03-18 宁夏西北骏马电机制造股份有限公司 Manufacturing method of explosion-proof variable-frequency low-speed direct-drive water-cooling type three-phase asynchronous motor
CN114204757B (en) * 2021-11-26 2023-11-24 宁夏西北骏马电机制造股份有限公司 Manufacturing method of flameproof variable-frequency low-speed direct-drive water-cooled three-phase asynchronous motor

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Application publication date: 20170804