CN107276313A - High power density compact mine ventilator motor - Google Patents
High power density compact mine ventilator motor Download PDFInfo
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- CN107276313A CN107276313A CN201710496162.2A CN201710496162A CN107276313A CN 107276313 A CN107276313 A CN 107276313A CN 201710496162 A CN201710496162 A CN 201710496162A CN 107276313 A CN107276313 A CN 107276313A
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- radiating ribs
- cylinder
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/165—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors characterised by the squirrel-cage or other short-circuited windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of high power density compact mine ventilator motor, including stator, rotor, cooling device；Stator includes support and has wound stator unshakable in one's determination；Rotor includes axle and cage rotor；Cooling device includes ventilating duct, internal fan and external fan；Support includes support cylinder, and support drum outer wall is provided with ventilating duct, and ventilating duct is connected by air vent I with support tube inner chamber respectively, and circumferentially alternating uniform radiating ribs and radiating tube on support drum outer wall, radiating tube are connected by air vent II with support tube inner chamber.The present invention uses house keeper's IC411 piece type of cooling by complete series, strict control stator current density, rotor current density, end-ring current density, electric current multiple, torque multiple, using while the bearing arrangement of large axial force and radial load can be born, rationally drain line etc. is noted in design, the load characteristic requirement of coal mine blower is met, to avoid the problems such as too high motor temperature, bearing damage, difficult note oil extraction.
Description
Technical field
The present invention relates to electric motors, more particularly to a kind of high power density compact mine ventilator motor.
Background technology
The data announced according to national Coal Mine Safety Supervision Bureau's coal mining accident inquiry system, in recent years gas accident generation is total
Number, death toll, first of all kinds of disasters in single death tolls Jun Ju collieries, it is seen that colliery " one through three prevention " shoulders heavy responsibilities,
Particularly divulge information particularly critical.Coal mine main ventilator is incessantly delivered downhole fresh air, and dilute that gas etc. is poisonous to be had
Evil gas and dust, is the basic guarantee of mine down-hole life security, coal mine main ventilator with the heart that high-voltage motor is blower fan,
Concerning coal mine down-hole personnel life security, motor is once stalling mine crew must withdraw, and equipment is very crucial.However, due to
The characteristics of coal mine main ventilator itself, it is used the operating condition very severe of high-voltage motor, be mainly reflected in following side
Face：1. motor is placed in blower fan sealed internal chamber, cause environment temperature too high, be unfavorable for motor cooling radiating, cause winding；2.
Using direct drive contra-rotating impeller, cause motor to bear very big axial direction, the load of radial direction both direction, and be cantilever beam by
Power, while also there is the out-of-balance force produced in pneumatic uneven caused dynamic loading during fan operation and brake,
Cause bearing damage；3. because motor is placed in blower fan sealed internal chamber, 0.5 is there are about to motor grease up distance outside blower fan
~2m, needs guiding through outer barrel, air channel, inner cylinder, the motor fan housing of blower fan, while it is also contemplated that blower fan structure design, convenient disassembly etc.
Factor, causes motor to note oil extraction resistance greatly, bearing lubrication system poor reliability.
Existing blower fan is by original YB series high voltages flame-proof type three with high-pressure explosion-proof type three-phase asynchronous YBF series
Phase asynchronous motor derives from, and YBF series only has the centers such as 400,450,560,630,710,800,900 high, wherein 400,
450 be pipe clamp chip architecture, is derived from JB/T8674-1997；560-900 centers height is derived from the Siemens's 1MJ7 structures introduced.
After JB/T8674-2007 is promulgated, JB/T8674-1997 is instead of, YB serial motors (IC411) no longer generation production in 2010 is permitted
It can demonstrate,prove, force to eliminate, also be had already fallen behind as the YBF series of subseries, the 560-900 series that 1MJ7 series derives from is present
The problem of volume is big, efficiency is low.Meanwhile, GB 30254-2013《High pressure three-phase cage asynchronous motor energy efficiency market and efficiency
Grade》After promulgation, it is desirable to which in September, 2014 is enforced, YBF series has not met national efficiency requirement, it is necessary to develop new
Serial fan motor is to meet national policy.
The content of the invention
In view of this, can it is an object of the invention to provide a kind of high power density compact mine ventilator motor
The load characteristic requirement of coal mine blower is met, to avoid the problems such as too high motor temperature, bearing damage, difficult note oil extraction.
The high power density compact mine ventilator motor of the present invention, including stator, rotor, cooling device；It is described
Stator include support and be arranged at base inner have wound stator unshakable in one's determination；The rotor includes axle and the mouse cage being arranged on axle
Rotor, described axle one end, which is stretched out, forms axle stretch end outside support, the other end, which is located in the end shield of support or stretched out outside end shield, forms non-
Axle stretch end, axle stretch end and non-shaft stretching end are supported in stator by end-cap assembly respectively；The cooling device includes ventilating duct, interior
Fan and external fan, the ventilating duct and internal fan are located in support, and are fixed on axle, and the ventilating duct connects with internal fan
Logical, the external fan is located in end shield, and is fixed on the non-shaft stretching end of axle；
It is circular support cylinder that the support, which includes cross section, and the support cylinder external wall of upper portion both sides are arranged with separate ventilation
Road, bottom outer wall both sides are arranged with interior ventilating duct, what separate ventilation road and interior ventilating duct were provided with by the wall of support cylinder respectively
Air vent I is connected with support tube inner chamber, and the support cylinder, which is located on the outer wall above interior ventilating duct, has been evenly distributed multiple dissipate
Heat pipe, the air vent II that the radiating tube is provided with by the wall of support cylinder is connected with support tube inner chamber, outside each separate ventilation road
Be evenly equipped with wall on multiple contour radiating ribs I, the outer wall of each interior ventilating duct be distributed with it is multiple be in the spaced radiating of height
Muscle II, the support cylinder, which is located on the outer wall above interior ventilating duct, is evenly distributed multiple contour radiating ribs III, and with dissipating
Heat pipe is alternately distributed, and it is in the spaced radiating ribs of height that support cylinder is distributed with multiple on the outer wall below interior ventilating duct
At least two radiating ribs V being spaced apart in height are provided with below IV, each radiating tube.
Further, the bearing part that the end-cap assembly includes being used to support axle is used for installation axle with support end is arranged on
The end cap of bearing member, the end cap is removably fixed to support end, and outer face is provided with horizontal vertical in end cap
The radiating ribs of distribution, the bearing part is provided with plane flameproof surface, the end cap and support junction, bearing part with end cap junction
Cylinder explosion suppresion surface is respectively equipped with shaft connection place, the bearing part positioned at axle stretch end is by 4 angular contact ball bearings and post bearing group
Into the bearing part positioned at non-shaft stretching end holds for axis of a cylinder.
Further, the cage rotor includes rotor core, the rotor bar being fixed in rotor core groove and fixation
It is used for the rotor end ring of short circuit in rotor bar two ends, the rotor core is using high magnetic conduction and the silicon steel plate stacking of mutually insulated
Form, the rotor bar uses aluminum strip or copper bar.
Further, the current density of the cage rotor is not more than 2.3A/mm2, rotor end ring current density is not more than
1.2A/mm2, locked rotor current multiple is not higher than 6.0.
It is further, described to there is wound stator iron core to include stator core and the stator coil being fixed in stator coring groove,
The stator core is formed using the silicon steel plate stacking of high magnetic conduction and mutually insulated, the stator coil using variable frequency electromagnetic wire around
System is formed.
Further, it is described to have wound stator steel core current density no more than 2.8A/mm2, locked-rotor torque multiple is not less than
1.1, torque capacity multiple is not less than 2.0.
Further, the internal fan and external fan are bidirectional fan, and the internal fan uses radial direction centrifugal structure, outside
Fan uses benzvalene form exocentric structure.
Further, the outgoing line device includes the terminal box bearing being fixed on support and is fixed on terminal box bearing
Main junction box and assistant junction box, junction, main junction box and the assistant junction box of the terminal box bearing and support are with connecing
The junction of line box bearing is respectively equipped with plane flameproof surface；The support cylinder middle part is provided with line outlet.
Further, between the support cylinder a height of 355~560mm in center, separate ventilation road and support the cylinder horizontal centre
Angle be 45 °, the angle between interior ventilating duct and support the cylinder horizontal centre is 35~50 °；The air vent I is rectangle
Hole, its length is 150~300mm, and width is 80~200mm；The air vent II is circular hole, its a diameter of 20~42mm；Institute
The internal diameter for stating radiating tube is that three radiating ribs V being spaced apart in height are provided with below 14~36mm, the radiating tube, wherein
High radiating ribs V is one, and high radiating ribs V height is 30~60mm, and short radiating ribs V is two, and short radiating ribs V height is 10
~30mm, short radiating ribs V and high radiating ribs V are 50~300mm in non-shaft stretching end threshold value L；The height of the radiating ribs I is
20~40mm, radiating ribs II height are 15~70mm, and radiating ribs III height is 50~90mm, and radiating ribs IV height is
20~70mm.
Further, the support cylinder middle part outer wall both sides are arranged with horizontal stiffener, the thickness of the horizontal stiffener
It is highly 50~90mm for 15~30mm；The support cylinder bottom outer wall is provided with vertical reinforcement, the thickness of the vertical reinforcement
Spend for 15~30mm, be highly 15~50mm；Support cylinder top is provided with suspension ring, the apertures of the suspension ring for φ 40~
60mm, thickness is 20~30mm, and stress thickness is 20~40mm.
Beneficial effects of the present invention：The high power density compact mine ventilator motor of the present invention, it is possible to increase electricity
Machine coefficient of utilization, can not only solve ribbon conveyer power of motor distribution imbalance and cause overload problem, it is to avoid electric-control system
Frequently alarm is shut down or burn-down of electric motor, and the heat-sinking capability of support can be greatly promoted again；Turned by reducing the stator coil number of turn, adjustment
Pilot trench mouth-shaped, it is possible to increase motor rotation blockage torque multiple and torque capacity multiple, control locked rotor current multiple, so as to can both contract
Short motor starting time, the startup temperature rise of reduction rotor bar and rotor end ring reduces rush of current to winding insulation and rotor
Damage, can also meet the frequent heavy load starting working condition requirement of ribbon conveyer, can effectively reduce or even prevent winding, fixed
The problems such as pilot trench wedge comes off, rotor end ring comes off, therefore, it is possible to adapt to the load characteristic of coal mine belt conveyor, to keep away
Exempt from the quality problems such as motor start-up time length, motor temperature rise are high, rotor end ring comes off or melted, slot wedge comes off, stator burns,
The overall performance of lifting motor, increases the service life.By setting cooling device, cooling device uses inside and outside two-way wind path,
In control machinery loss and outer ventilation circuit wind speed to reach that guaranteed efficiency reaches GB 30254-2013《High pressure three-phase cage is asynchronous
Motor Energy Efficiency limit value and efficiency grade》On the premise of 2 grades of efficiency requirements, control temperature rises, ribbon conveyer motor is met
The emergent General Requirement called of multimachine driving.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is the structural representation of support of the present invention cylinder；
Fig. 4 is Fig. 3 left view.
Embodiment
As shown in Figures 1 to 4：The high power density compact mine ventilator motor of the present embodiment, including stator, turn
Son, cooling device；The stator includes support 4 and being arranged inside support 4 has wound stator unshakable in one's determination；The rotor includes axle
1 and the cage rotor that is arranged on axle 1, described one end of axle 1, which is stretched out, forms axle stretch end outside support, the other end is located at the end of support 4
Non-shaft stretching end is formed in cover 14 or outside stretching end shield 14, axle stretch end and non-shaft stretching end are supported in stator by end-cap assembly respectively
It is interior；The cooling device includes ventilating duct 10, internal fan 11 and external fan 13, and the ventilating duct 10 and internal fan 11 are located at machine
In seat 4, and it is fixed on axle 1, the ventilating duct 10 is connected with internal fan 11, the external fan 13 is located in end shield 14, and it is solid
On the non-shaft stretching end for being scheduled on axle 1, by axle 1 by the electromagnetic torque produced by cage rotor be delivered to that motor dragged it is negative
Carry, i.e. output mechanical energy.It is circular support cylinder 19, the 19 external wall of upper portion both sides of support cylinder that the support 4, which includes cross section,
Separate ventilation road 21 is arranged with, bottom outer wall both sides are arranged with interior ventilating duct 22, and separate ventilation road 21 and interior ventilating duct 22 are distinguished
The air vent I19a being provided with by the wall of support cylinder 19 is connected with 19 inner chambers of support cylinder, and the support cylinder 19 is located at interior ventilating duct
Multiple radiating tubes 32 are evenly distributed on the outer wall of 22 tops, the radiating tube 32 passes through leading to that the wall of support cylinder 19 is provided with
Air holes II19b is connected with 19 inner chambers of support cylinder, multiple contour radiating ribs I26 is evenly equipped with the outer wall in each separate ventilation road 21, respectively
It is in the spaced radiating ribs II28 of height to be distributed with the outer wall of interior ventilating duct 22 multiple, and the support cylinder 19 is located at interior ventilation
Multiple contour radiating ribs III25 are evenly distributed on the outer wall of the top of road 22, and are alternately distributed with radiating tube 32, support cylinder
19 are located on the outer wall below interior ventilating duct that to be distributed with multiple be in the spaced radiating ribs IV27 of height, under each radiating tube 32
Side is provided with least two radiating ribs V (high radiating ribs V29, short radiating ribs V30) being spaced apart in height, by support cylinder
Separate ventilation road 21, interior ventilating duct 22, radiating ribs and radiating tube 32 are set on 19, support 19 heat-delivery surfaces of cylinder can not only be expanded
Product, and the heat exchange of motor inside and outside can be increased, motor cooling capacity is improved, increases the single-machine capacity of motor.
In the present embodiment, the end-cap assembly includes bearing part (axle stretch end bearing part 2, the non-shaft extension for being used to support axle 1
End bearing part 15) and be arranged on the end of support 4 and be used to the end cap (axle stretch end end cap 3, non-shaft stretching end end cap 12) of bearing part be installed,
The end cap (axle stretch end end cap 3, non-shaft stretching end end cap 12) is removably fixed to the end of support 4, and end cap (shaft extension
End end cap 3, non-shaft stretching end end cap 12) interior outer face is provided with the radiating ribs of level perpendicular distribution, to increase area of dissipation, improves
Integral heat sink ability, the bearing part (axle stretch end bearing part 2, non-shaft stretching end bearing part 15) and end cap are (axle stretch end end cap 3, non-
Axle stretch end end cap 12) junction is provided with plane flameproof surface, the end cap (axle stretch end end cap 3, non-shaft stretching end end cap 12) and support 4
Junction, bearing part (axle stretch end bearing part 2, non-shaft stretching end bearing part 15) and the junction of axle 1 are respectively equipped with cylinder explosion suppresion surface, this
Axle stretch end end cap 3, the non-shaft stretching end end cap 12 of embodiment are bolted on the two ends of support 4 respectively, axle stretch end end cap 3, non-
The junction of axle stretch end end cap 12 and support 4 is respectively equipped with cylinder explosion suppresion surface, and all explosion suppresion surfaces meet GB 3836.2-2010
Exd I is required.Bearing part 2 positioned at axle stretch end is held and constituted by 4 angular contact ball bearings and axis of a cylinder, wherein 4 angular contact balls
Bearing can not only bear axial force but also can bear radial load, and axis of a cylinder is held, and individually bears radial load；Positioned at the bearing part of non-shaft stretching end
15 hold for axis of a cylinder, are solely subjected to radial load, and the bearing combined structure possesses while bearing larger axial force (35000N) and radial direction
The ability of power (25000N), bearing life is not less than 100,000 hours.The axle stretch end bearing part 2, non-shaft stretching end bearing of the present embodiment
Part 15 is installed with corresponding end cap by bolt fix respectively, is steadily rotated freely with support shaft 1, and with axle stretch end end cap 3,
Non-shaft stretching end end cap 12 1, which works, determines the axially position of cage rotor, it is ensured that stator core 6, rotor core 7 are axially aligned,
In addition to it can reduce axial magnetic pull, active iron core raw material can be also made full use of；This kind of bearing combined structure is more suitable simultaneously
Fans load for producing large axial force, reduces bearing fault, it is ensured that motor is run reliably and with long-term.
In the present embodiment, the cage rotor include rotor core 7, the rotor bar 8 that is fixed in the groove of rotor core 7 with
And be fixed on the two ends of rotor bar 8 be used for short circuit rotor end ring 9, the rotor core 7 high magnetic conduction of use and mutually insulated
Silicon steel plate stacking is formed, and the rotor bar 8 uses aluminum strip or copper bar, and the rotor bar 8 of the present embodiment is poured into a mould or embedded rotor
In the groove of iron core 7, cage rotor can under the rotating excitation field for thering is wound stator iron core to produce induced electromotive force, and produce electromagnetism
Torque, realization is converted into mechanical energy by electric energy.
In the present embodiment, the current density of the cage rotor is not more than 2.3A/mm2, the current density of rotor end ring 9 is little
In 1.2A/mm2, locked rotor current multiple is not higher than 6.0, and by adjusting rotor punching notch size, control locked rotor current multiple is not
Higher than 6.0.
It is described to there is wound stator iron core to include stator core 6 and the stator being fixed in the groove of stator core 6 in the present embodiment
Coil 5, the stator core 6 is formed using the silicon steel plate stacking of high magnetic conduction and mutually insulated, and the stator coil 5 uses frequency conversion
Electromagnetic wire coiling is formed, and the stator coil 5 of the present embodiment is embedded in the groove of stator core 6, and stator coil 5 presses star or triangle
Connect and rotating excitation field is produced by three-phase alternating-current supply, it uses variable frequency electromagnetic wire, heat-resisting, moisture resistance, impact resistance insulation system
System, meets the use requirement of the frequency converter pulse power, and is provided with stator winding heater, heating different according to motor volume
Device power is 400~800W, to avoid machine winding moisture damage.
It is described to have wound stator steel core current density no more than 2.8A/mm in the present embodiment2, locked-rotor torque multiple is low
In 1.1, torque capacity multiple is not less than 2.0, by reducing the number of turn of stator coil 5, and control locked-rotor torque multiple is not less than 1.1,
Torque capacity multiple is not less than 2.0.
In the present embodiment, the internal fan 11 and external fan 13 are bidirectional fan, the internal fan 11 using radially from
Heart type structure, drives rotation to form interior wind path power supply machine internal cooling by axle 1；External fan 13 uses benzvalene form exocentric structure, leads to
Crossing axle 1 drives rotation to form the cooling of outer ventilation circuit power supply machine surface.The end shield 14 of the present embodiment is arranged on motor non-shaft stretching end, uses
Acted in outer ventilation circuit air intake and wind-guiding；Internal fan 11, external fan 13 constitute the cooling of motor together with ventilating duct 10, end shield 14
Device, the according to the form below control of cooling wind speed, and control machinery loss meets GB 30254-2013 to meet motor whole efficiency
《High pressure three-phase cage asynchronous motor energy efficiency market and efficiency grade》When the requirement of 2 grades of efficiencies, 40 DEG C of circumstance temperature, casing surface temperature
Degree control is below 90 DEG C, and bearing temperature is controlled below 80 DEG C.
In the present embodiment, outgoing line device is provided with the outer wall of support 4, the outgoing line device includes being fixed on support 4
On terminal box bearing 16 and the main junction box 18 and assistant junction box 17 that are fixed on terminal box bearing 16, the terminal box
The junction of bearing 16 and the junction of support 4, main junction box 18 and assistant junction box 17 and terminal box bearing 16 is respectively equipped with
Plane flameproof surface, the assistant junction box 17 of the present embodiment is installed by bolt with terminal box bearing 16, for bearing, has winding to determine
Sub- iron core monitoring temperature and heating installation power supply；Main junction box 18 is installed by bolt with terminal box bearing 16, for being passed through three-phase
AC power；Main junction box 18 and profile and the mounting hole arrangement of the junction of terminal box bearing 16 are designed to circular configuration, main
In the range of 360 ° every certain angle (minimum 10 °) outlet direction can be adjusted flexibly in terminal box 18；All explosion suppresion surfaces are accorded with
GB 3836.2-2010 Exd I are closed to require.The middle part of support cylinder 19 is provided with line outlet 31, is installed for terminal box bearing 16.
In the present embodiment between housing components use seam matching design, improve shell protection grade, be on the one hand for
Prevent water from entering inside motor case, cause motor insulation resistance to decline, aging the problem of, be on the other hand prevent dust from entering
Enter inside motor case.Columnar design causes the rotation of terminal box any direction more to facilitate to adjust line outlet direction.
By adjusting the number of turn n of stator coil 5, stator core 6, the length l of rotor core 7 in the present embodiment, rotor groove profile,
The electromagnetic parameters such as the shape of rotor end ring 9 reduction motor temperature rise, raising overload capacity and startability, reasonable distribution iron loss, copper loss,
Optimize internal fan 11, the reduction mechanical loss of external fan 13, improve efficiency.Rationally design rotor, makes its intrinsic frequency avoid change
Frequency scope, it is to avoid motor operation causes resonance.
In the present embodiment, the support cylinder a height of 355~560mm in 19 centers, 19 water of the separate ventilation road 21 and support tin
Angle between flat center is 45 °, and the angle between 19 horizontal centres of interior ventilating duct 22 and the support cylinder is 35~50 °, outside
Ventilating duct 21 and interior ventilating duct 22 are a parts for wind path in motor, for being radiated to motor.The air vent I19a is
Rectangular opening, its length is 150~300mm, and width is 80~200mm, and the air vent I19a of the present embodiment quantity is eight, root
High different from 355~560mm according to 19 centers of support cylinder, length is 150-300mm, and width is 80-200mm；The air vent
II19b is circular hole, its a diameter of 20~42mm, high different from 355~560mm according to 19 centers of support cylinder, air vent II19b's
Quantity is 18~60.The internal diameter of the radiating tube 32 be 14~36mm, according to support cylinder 19 centers height from 355~560mm not
Together, the quantity of radiating tube 32 is 9~30, and radiating tube 32 is the part of wind path in motor, equivalent to small-sized ventilating duct；Institute
State the lower section of radiating tube 32 and be provided with three radiating ribs V being spaced apart in height, wherein high radiating ribs V29 is one, according to machine
The centers of Zuo Tong 19 are high different from 355~560mm, and high radiating ribs V height is 30~60mm, dissipated for increasing by 19 surfaces of support cylinder
Hot area；Short radiating ribs V30 is two, positioned at high radiating ribs V29 both sides, and short radiating ribs V30 height is 10~30mm, is used for
Increase support 19 surface radiating areas of cylinder, while short radiating ribs V30 and high radiating ribs V29 is 50 in non-shaft stretching end threshold value L
~300mm, plays wind-guiding, improves the cooling capacity of radiating tube 32.The height of the radiating ribs I26 is 20~40mm, this implementation
The radiating ribs I26 of example quantity is 10, for increasing the surface radiating area of separate ventilation road 21, improves heat inside and outside support cylinder 19
Exchange capacity；Radiating ribs II28 height is 15~70mm, according to high different, the radiating ribs from 355~560mm in 19 centers of support cylinder
II28 quantity is 6~20, for increasing the interior surface radiating area of ventilating duct 22, improves heat exchange energy inside and outside support cylinder 19
Power；Radiating ribs III25 height is 50~90mm, according to high different, the radiating ribs III25 from 355~560mm in 19 centers of support cylinder
Quantity be 15~35, for increase support cylinder 19 surface radiating areas；Radiating ribs IV27 height is 20~70mm, according to
19 centers of support cylinder are high different from 355~560mm, radiating ribs IV27 quantity 12~18, for increasing by 19 surfaces of support cylinder
Area of dissipation.
In the present embodiment, the 19 middle part outer wall both sides of support cylinder are arranged with horizontal stiffener 24, and the level is strengthened
The thickness of muscle 24 is 15~30mm, is highly 50~90mm, and high different from 355~560mm according to 19 centers of support cylinder, level adds
The thickness of strengthening tendons 24 is set to 15~30mm；19 bottom outer walls of the support cylinder are provided with vertical reinforcement 23, the vertical reinforcement
The thickness of muscle 23 is 15~30mm, is highly 15~50mm, by setting horizontal stiffener 24 and vertical reinforcement 23, Neng Goujia
19 intensity of strong support cylinder, it is to avoid motor oscillating.The top of support cylinder 19 is provided with suspension ring 20, and the aperture of the suspension ring 20 is φ
40~60mm, thickness is 20~30mm, and stress thickness is 20~40mm.
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 high power density compact mine ventilator motor, it is characterised in that：Including stator, rotor, cooling device；
The stator include support and be arranged at base inner have wound stator unshakable in one's determination；The rotor includes axle and is arranged on axle
Cage rotor, described axle one end, which is stretched out, forms axle stretch end outside support, the other end is located in the end shield of support or stretched out end shield profile
Into non-shaft stretching end, axle stretch end and non-shaft stretching end are supported in stator by end-cap assembly respectively；The cooling device includes wind-guiding
Cylinder, internal fan and external fan, the ventilating duct and internal fan are located in support, and are fixed on axle, the ventilating duct with it is interior
Fan is connected, and the external fan is located in end shield, and is fixed on the non-shaft stretching end of axle；
It is circular support cylinder that the support, which includes cross section, and the support cylinder external wall of upper portion both sides are arranged with separate ventilation road,
Bottom outer wall both sides are arranged with interior ventilating duct, the ventilation that separate ventilation road and interior ventilating duct are provided with by the wall of support cylinder respectively
Hole I is connected with support tube inner chamber, and the support cylinder, which is located on the outer wall above interior ventilating duct, has been evenly distributed multiple radiating tubes,
The air vent II that the radiating tube is provided with by the wall of support cylinder is connected with support tube inner chamber, on the outer wall in each separate ventilation road
Be furnished with multiple contour radiating ribs I, the outer wall of each interior ventilating duct be distributed with it is multiple be in the spaced radiating ribs II of height, institute
State support cylinder and multiple contour radiating ribs III are evenly distributed on the outer wall above interior ventilating duct, and handed over radiating tube
For distribution, it is in the spaced radiating ribs IV of height that support cylinder is distributed with multiple on the outer wall below interior ventilating duct, each to dissipate
At least two radiating ribs V being spaced apart in height are provided with below heat pipe.
2. high power density compact mine ventilator motor according to claim 1, it is characterised in that：The end cap
Component includes being used for the bearing part for supporting axle and is arranged on support end being used to installing the end cap of bearing part, and the end cap is with can
The mode of dismounting is fixed on support end, and outer face is provided with the radiating ribs of level perpendicular distribution, the bearing part in end cap
Plane flameproof surface is provided with end cap junction, the end cap is respectively equipped with cylinder with support junction, bearing part and shaft connection place
Explosion suppresion surface, the bearing part positioned at axle stretch end is held and constituted by 4 angular contact ball bearings and axis of a cylinder, positioned at the bearing part of non-shaft stretching end
Held for axis of a cylinder.
3. high power density compact mine ventilator motor according to claim 1, it is characterised in that：The mouse cage
Rotor include rotor core, the rotor bar that is fixed in rotor core groove and be fixed on rotor bar two ends be used for short circuit
Rotor end ring, the rotor core is formed using the silicon steel plate stacking of high magnetic conduction and mutually insulated, and the rotor bar uses aluminium
Bar or copper bar.
4. high power density compact mine ventilator motor according to claim 3, it is characterised in that：The mouse cage
The current density of rotor is not more than 2.3A/mm2, rotor end ring current density is not more than 1.2A/mm2, locked rotor current multiple is not higher than
6.0。
5. high power density compact mine ventilator motor according to claim 1, it is characterised in that：It is described have around
Group stator core includes stator core and the stator coil that is fixed in stator coring groove, the stator core use high magnetic conduction and
The silicon steel plate stacking of mutually insulated is formed, and the stator coil is formed using variable frequency electromagnetic wire coiling.
6. high power density compact mine ventilator motor according to claim 5, it is characterised in that：It is described have around
Group stator core current density is not more than 2.8A/mm2, locked-rotor torque multiple is not less than 1.1, and torque capacity multiple is not less than 2.0.
7. high power density compact mine ventilator motor according to claim 1, it is characterised in that：The interior wind
Fan and external fan are bidirectional fan, and the internal fan uses radial direction centrifugal structure, and external fan uses benzvalene form exocentric structure.
8. high power density compact mine ventilator motor according to claim 1, it is characterised in that：The support
Outgoing line device is provided with outer wall, the outgoing line device includes the terminal box bearing being fixed on support and is fixed on terminal box
Main junction box and assistant junction box on bearing, junction, main junction box and the auxiliary connection of the terminal box bearing and support
The junction of box and terminal box bearing is respectively equipped with plane flameproof surface；The support cylinder middle part is provided with line outlet.
9. high power density compact mine ventilator motor according to claim 1, it is characterised in that：The support
Angle between the cylinder a height of 355~560mm in center, separate ventilation road and support the cylinder horizontal centre is 45 °, the interior ventilating duct
Angle between support cylinder horizontal centre is 35~50 °；The air vent I is rectangular opening, and its length is 150~300mm, wide
Spend for 80~200mm；The air vent II is circular hole, its a diameter of 20~42mm；The internal diameter of the radiating tube is 14~36mm,
Three radiating ribs V being spaced apart in height are provided with below the radiating tube, wherein high radiating ribs V is one, high radiating ribs V
Height be 30~60mm, short radiating ribs V is two, and short radiating ribs V height is 10~30mm, short radiating ribs V and high is radiated
Muscle V is 50~300mm in non-shaft stretching end threshold value L；The height of the radiating ribs I is 20~40mm, radiating ribs II height
For 15~70mm, radiating ribs III height is 50~90mm, and radiating ribs IV height is 20~70mm.
10. high power density compact mine ventilator motor according to claim 1, it is characterised in that：The machine
Outer wall both sides are arranged with horizontal stiffener in the middle part of seat cylinder, and the thickness of the horizontal stiffener is 15~30mm, highly for 50~
90mm；The support cylinder bottom outer wall is provided with vertical reinforcement, and the thickness of the vertical reinforcement is 15~30mm, is highly 15
~50mm；The support cylinder top is provided with suspension ring, and the aperture of the suspension ring is 40~60mm of φ, and thickness is 20~30mm, by
Power thickness is 20~40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710496162.2A CN107276313A (en) | 2017-06-26 | 2017-06-26 | High power density compact mine ventilator motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710496162.2A CN107276313A (en) | 2017-06-26 | 2017-06-26 | High power density compact mine ventilator motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107276313A true CN107276313A (en) | 2017-10-20 |
Family
ID=60069532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710496162.2A Pending CN107276313A (en) | 2017-06-26 | 2017-06-26 | High power density compact mine ventilator motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107276313A (en) |
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| CN107994734A (en) * | 2017-12-19 | 2018-05-04 | 卧龙电气集团股份有限公司 | A kind of high power density fire-proof motor |
| CN111555527A (en) * | 2020-05-25 | 2020-08-18 | Abb瑞士股份有限公司 | Motor shell and motor |
| CN112260485A (en) * | 2020-11-30 | 2021-01-22 | 卧龙电气南阳防爆集团股份有限公司 | Double-pumping interactive high-power-density motor |
| CN113285566A (en) * | 2021-05-28 | 2021-08-20 | 天津中德应用技术大学 | Integrated type integral type motor system |
| CN116191769A (en) * | 2023-04-26 | 2023-05-30 | 河南全新机电设备有限公司 | Shell split type efficient air-cooled motor structure |
| CN116566110A (en) * | 2023-07-04 | 2023-08-08 | 中铁九局集团有限公司 | New energy mining truck driving motor with efficient heat dissipation structure |
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Application publication date: 20171020 |
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