CN201584871U - Explosion-proof type three-phase asynchronous motor used for scraper conveyor - Google Patents

Explosion-proof type three-phase asynchronous motor used for scraper conveyor Download PDF

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Publication number
CN201584871U
CN201584871U CN200920091371XU CN200920091371U CN201584871U CN 201584871 U CN201584871 U CN 201584871U CN 200920091371X U CN200920091371X U CN 200920091371XU CN 200920091371 U CN200920091371 U CN 200920091371U CN 201584871 U CN201584871 U CN 201584871U
Authority
CN
China
Prior art keywords
proof type
motor
machine shaft
rotor
explosion
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.)
Expired - Fee Related
Application number
CN200920091371XU
Other languages
Chinese (zh)
Inventor
靳芝
杨盛成
程友明
肖立民
李世全
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.)
Nanyang Explosion Protection Group Co Ltd
Original Assignee
Nanyang Explosion Protection Group 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 Nanyang Explosion Protection Group Co Ltd filed Critical Nanyang Explosion Protection Group Co Ltd
Priority to CN200920091371XU priority Critical patent/CN201584871U/en
Application granted granted Critical
Publication of CN201584871U publication Critical patent/CN201584871U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an explosion-proof type three-phase asynchronous motor used for a scraper conveyor. The explosion-proof type three-phase asynchronous motor is mainly characterized in that a frame adopts a medium-pressure water-cooling structure cast by split modules, and comprises an outer casing of a steel casting and a lining wall of a steel plate which is welded with the outer casing into a whole body; a gap is left between the lining wall and the outer casing; a curve water cooling channel is also arranged between the lining wall and the outer casing; labyrinth water cooling channels are arranged on an front end cover and a rear end cover and communicated with the curve water cooling channel; and axial ventilating holes are distributed in a stator core and a rotor sheet. The motor can effectively control the temperature rises of a stator, a rotor and windings thereof and a rotating shaft support part, reliably ensure the normal operation of the motor, and enhance the rigidity of the frame and the vibration resistance of the whole motor, and has the advantages of reasonable structure, high overload capability, small vibration, stable running, security, reliability, good explosion-proof and barrier properties, long service life and the like.

Description

Drag conveyor flame-proof type threephase asynchronous
Technical field
The utility model belongs to electrical equipment technical field, is a kind of drag conveyor flame-proof type threephase asynchronous.
Background technology
In technique known, general mining heavy scraper conveyor is poor at operating environment, dust pollution is serious, use in the place that flammable explosion hazard gas concentration is bigger, and power is big in addition, thereby requires the big capacity drive motors of supporting high performance flame-proof type as power.Currently used drive motors is because structural factor, and serviceability is relatively poor, and major defect one is that its support adopts steel plate to roll to form, and a little less than the rigidity, anti seismic efficiency is poor, influences the motor traveling comfort; The 2nd, its endcap support adopts three bearing arrangements usually, its shaft extension end is that an axis of a cylinder holds and adds a ball bearing bearing, bears the radial pressure and the axial thrust of rotating shaft neck respectively, and the electric motor fan end is that an axis of a cylinder holds, but facts have proved, adopt the configuration of this motor bearings, the axial carrying capacity redundancy causes shaft extension end end cap size and difficulty of processing to strengthen on the other hand on the one hand, the bearing dismantling trouble, inconvenient maintenance, and cause running reliability of motor poor, motor seize phenomenon happens occasionally; The 3rd, motor only depends on the water jacket at support position to cool off, and the inner heat that produces can not in time distribute, and temperature rise can not get effective control, influences the normal operation of motor, and burning machine accident takes place easily.
The utility model content
The purpose of this utility model provides that a kind of cooling heat dissipation is effective, stable work in work, drag conveyor flame-proof type threephase asynchronous not fragile, long working life.
Realize that the technical scheme that the purpose of this utility model is taked is: this motor comprises support, machine shaft, rotor, stator, cooling fan and before, rear end cap, wherein: support adopts pieces together setting-out cold junction structure in the die cast, be to constitute by the shell of steel-casting with steel plate lining that its welding is connected as a single entity, leave the gap between lining and the shell, and be provided with bent road water-cooling channel, before, rear end cap is provided with the labyrinth type water-cooling channel, and be communicated with described bent road water-cooling channel, be laid with axial ventilation hole in stator core and the rotor punching, between being provided with between stator and the inboard wall of base.
A cylindrical bearing and a self-aligning roller bearing are housed respectively between described forward and backward end cap and the machine shaft, and wherein, self-aligning roller bearing is installed in the shaft extension end of machine shaft, and cylindrical bearing is installed in the tail end of machine shaft.
Described cooling fan adopts centrifugal fan, fixedlys connected with machine shaft, and between rotor and front end housing.
Be provided with airtight being used in the described terminal box insulating protection housing of wiring member is installed, the line outlet of terminal box is equipped with high-voltage cable connector.
Be welded with the sliver that is misplaced mutually in the gap between described shell and the lining.
The drag conveyor flame-proof type threephase asynchronous of making according to such scheme, the motor cooling system that adopts inner air cooling and outer water-cooled to combine, can control the temperature rise of stator, rotor and winding thereof and rotating shaft support zone effectively, guarantee the normal operation of motor reliably.Support adopts cast structure, has strengthened the resistance to shock of the rigidity and the motor integral body of support greatly.Compared with prior art, this motor has that compact conformation is reasonable, and overload capacity is strong, vibrates for a short time, and noise is low, and operates steadily, and is safe and reliable, and energy consumption is low, and barrier propterty is good, advantages such as long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Embodiment
Referring to Fig. 1, drag conveyor of the present utility model flame-proof type threephase asynchronous, this motor is made up of support 1, machine shaft 3, rotor 9, stator 10, cooling fan 2 and forward and backward end cap 5,15.For integral rigidity and the resistance to shock thereof that strengthens motor, guarantee the even running of motor, the support 1 of this motor adopts pieces together the die cast moulding, setting-out circulation cooling structure in its inner employing, it is steel plate lining 13 that is connected as a single entity with it of welding in steel-casting shell 12, leave the gap between lining 13 and the shell 12, and in the gap, be welded with the sliver that is misplaced mutually, forming bent road water-cooled circulation canal 14, and be provided with the water inlet that is communicated with middle pressure water supply line in the position, an end of water-cooled circulation canal 14.In forward and backward end cap 5,15, be provided with labyrinth type water-cooling channel 6,16, the water inlet end of this water-cooling channel all is connected and is communicated with the water side of bent road water-cooled circulation canal 14, be equipped with the delivery port that is communicated with flowing line in its water side, formation is coated on the outer field water-cooled loop structure of whole motor thus.At motor internal, be laid with axial ventilation hole 10-1, the 9-1 of circumferential arrangement in stator core and the rotor punching, and constitute the cool cycles passage of motor internal.Cooling fan 2 adopts centrifugal fan, fixedlys connected with machine shaft 3, and between rotor 9 and front end housing 5.When cooling fan 2 rotates with machine shaft 3, the air of motor internal is caused the cavity of rotor 9 front portions via the axial ventilation hole 9-1 in the rotor punching by the cavity of rotor 9 afterbodys, and be depressed in the cavity of rotor 9 afterbodys by the axial ventilation hole 10-1 in the stator core, form the air cooling circulatory system of motor internal thus.Simultaneously, in the process of cooling blast circulation, its heat of being taken out of by rotor 9 and stator 10 conducts to the water-cooled circulatory system by support 1 and forward and backward end cap 5,15 inwalls, constitutes comparatively perfect motor cooling system, thereby guarantee the even running of motor, avoid the generation of fault.Stressing conditions according to machine shaft 3 supports, a cylindrical bearing 17 and a self-aligning roller bearing 4 are housed respectively between forward and backward end cap 5,15 and machine shaft 3, wherein, aligning roller axle 4 holds the shaft extension end that is installed in machine shaft 3, bear the axially loaded of this front and back, position play, and cylindrical bearing 17 is installed in the tail end of machine shaft, bears the radial load of machine shaft 3, reach simplified structure thus, reduce the effect of motor volume.For strengthening the flame proof protection effect, in the terminal box 7 of this motor, be provided with airtight insulating protection housing 8, binding post is installed in this insulating protection housing 8, at the line outlet place of terminal box 7 high-voltage cable connector 11 is housed.

Claims (4)

1. drag conveyor flame-proof type threephase asynchronous, this motor comprises support, machine shaft, rotor, stator, cooling fan and before, rear end cap, it is characterized in that: support adopts pieces together setting-out cold junction structure in the die cast, be to constitute by the shell of steel-casting with steel plate lining that its welding is connected as a single entity, leave the gap between lining and the shell, and be provided with bent road water-cooling channel, before, rear end cap is provided with the labyrinth type water-cooling channel, and be communicated with described bent road water-cooling channel, be laid with axial ventilation hole in stator core and the rotor punching, be provided with the gap between stator and the inboard wall of base, and constitute the cooling duct.
2. drag conveyor flame-proof type threephase asynchronous according to claim 1, it is characterized in that: a cylindrical bearing and a self-aligning roller bearing are housed respectively between described forward and backward end cap and the machine shaft, wherein, self-aligning roller bearing is installed in the shaft extension end of machine shaft, and cylindrical bearing is installed in the tail end of machine shaft.
3. drag conveyor flame-proof type threephase asynchronous according to claim 1 is characterized in that: described cooling fan adopts centrifugal fan, fixedly connected with machine shaft, and between rotor and front end housing.
4. drag conveyor flame-proof type threephase asynchronous according to claim 1 is characterized in that: be welded with the sliver that is misplaced mutually in the gap between described shell and the lining.
CN200920091371XU 2009-07-08 2009-07-08 Explosion-proof type three-phase asynchronous motor used for scraper conveyor Expired - Fee Related CN201584871U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920091371XU CN201584871U (en) 2009-07-08 2009-07-08 Explosion-proof type three-phase asynchronous motor used for scraper conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920091371XU CN201584871U (en) 2009-07-08 2009-07-08 Explosion-proof type three-phase asynchronous motor used for scraper conveyor

Publications (1)

Publication Number Publication Date
CN201584871U true CN201584871U (en) 2010-09-15

Family

ID=42726884

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920091371XU Expired - Fee Related CN201584871U (en) 2009-07-08 2009-07-08 Explosion-proof type three-phase asynchronous motor used for scraper conveyor

Country Status (1)

Country Link
CN (1) CN201584871U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103414278A (en) * 2013-08-12 2013-11-27 贵州凯兰德煤机制造有限公司 Cutting motor of coal mining machine
CN103580414A (en) * 2012-08-09 2014-02-12 武汉新威奇科技有限公司 Three-phase asynchronous motor used for electric screw press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580414A (en) * 2012-08-09 2014-02-12 武汉新威奇科技有限公司 Three-phase asynchronous motor used for electric screw press
CN103414278A (en) * 2013-08-12 2013-11-27 贵州凯兰德煤机制造有限公司 Cutting motor of coal mining machine

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100915

Termination date: 20150708

EXPY Termination of patent right or utility model