CN110492655B - Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor - Google Patents
Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor Download PDFInfo
- Publication number
- CN110492655B CN110492655B CN201910792598.5A CN201910792598A CN110492655B CN 110492655 B CN110492655 B CN 110492655B CN 201910792598 A CN201910792598 A CN 201910792598A CN 110492655 B CN110492655 B CN 110492655B
- Authority
- CN
- China
- Prior art keywords
- end cover
- cover
- rotating shaft
- water jacket
- machine base
- 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.)
- Active
Links
- 238000005065 mining Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 238000009423 ventilation Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012212 insulator Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- 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
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
A mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor relates to the technical field of motors, a machine base adopts a water cooling structure and is formed by assembling an inner water jacket and an outer water jacket and welding a front flange and a rear flange, wherein the inner water jacket is provided with a water retaining bar to form a baffling type waterway, and a front end cover and a rear end cover are provided with labyrinth type annular water cooling channels and are communicated with the baffling type water cooling channels. The stator iron core is uniformly provided with the axial ventilation holes, the rotating shaft is uniformly provided with the welding ribs to form an axial ventilation channel, and the axial ventilation channel is formed by the axial ventilation holes on the inner wall of the machine base and the corresponding channel steel arranged outside the machine base. According to the optimized and reasonable stator and rotor groove matching, the performance parameter index meets or exceeds the requirements of industry standards, and the invention has the characteristics of small vibration and low noise.
Description
Technical field:
the invention relates to the technical field of motors, in particular to a mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor.
The background technology is as follows:
at present, a double-speed motor driving system is commonly adopted in the scraper conveyor of the underground working face of the coal mine in China, and the high-power motor is started by switching the double-speed motor from low speed to high speed. However, because of the existence of large mechanical impact and electric impact, the starting failure is often caused, and accidents such as chain breakage and the like occur, so that the safety is poor. And in this manner drives a dedicated two-winding two-speed motor and a two-cable and two-speed switch are used. The double-speed motor has the advantages of complex structure, high manufacturing cost, low-speed switching difficulty in effective control, multiple fault points and poor reliability, and a power supply system is equivalent to two motors.
The invention comprises the following steps:
in view of the above, it is necessary to provide a mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor with good cooling and heat dissipation effects, stable working performance, safety, reliability, difficult damage and long service life.
A mining high-pressure explosion-proof variable-frequency speed-regulating three-phase asynchronous motor comprises a motor base, a motor rotating shaft, a rotor, a stator, a cooling fan, a front end cover, a rear end cover, a front outer cover, a sealing structure, a front inner cover, a rear inner cover and a conducting ring, wherein the front inner cover and the rear inner cover are made of explosion-proof labyrinth sealing structures, the motor base is formed by welding an inner water jacket, the outer water jacket, the front flange and the rear flange, a water retaining strip is welded on the outer circle of the inner water jacket, the water retaining strip forms a baffled waterway and is welded with the outer water jacket in a press-fit manner, a channel steel is arranged on the outer wall of the motor base to form a circulating cooling air channel, the front end cover and the rear end cover are provided with labyrinth water cooling channels and are communicated with the motor base baffled waterway, a ventilating pipe is assembled on a stator core, axial ventilation holes are uniformly distributed on two end faces of the stator core, a rib plate is uniformly distributed on the rotor core, the front end cover, the rear end cover and the motor rotating shaft are respectively provided with two cylindrical roller bearings and one deep groove ball bearing, one cylindrical roller bearing and one cylindrical roller bearing are arranged at the shaft extending end of the motor rotating shaft, the other cylindrical roller bearing is an insulating bearing, the tail end of the motor rotating shaft is arranged at the tail end of the motor rotating shaft, the cooling fan is fixedly connected with the motor rotor through the motor spindle and the motor rotor through the connecting wire, the connecting wire through the connecting wire box and the connecting wire box, the connecting wire box and the connecting wire box through the connecting wire box, the connecting wire box and the connecting wire box are arranged in a wire insulator and the connecting wire box through the insulator and the connecting wire box, the flange of the machine seat is provided with an oil filling hole and an oil discharging hole.
Preferably, a water baffle is arranged on the outer circle of the inner water jacket to form a baffling waterway and the outer water jacket are assembled together, and an anti-bulge hole is processed on the outer circle of the outer water jacket at a position corresponding to the water baffle for plug welding and fixing.
Preferably, the outside of the machine base is provided with channel steel corresponding to the ventilation holes on the inner wall of the machine base, and the channel steel, the stator iron core and the motor rotating shaft are uniformly provided with axial ventilation holes, and form a cooling channel.
Preferably, the front end cover and the rear end cover are labyrinth annular waterways which are connected with two ends of the machine base to form a circulating waterway.
Preferably, the cooling inner fan is fixedly connected with the motor rotating shaft and is positioned between the rotor and the rear end cover; the sealing structure is I P67 sealing structure, I P67 sealing structure is fixed on the front outer cover and is positioned between the shaft extension end and the front outer cover oil storage chamber.
Preferably, the conductive ring is fixed on the rear inner cover and is positioned between the cylindrical roller insulating bearings.
The invention discloses an explosion-proof labyrinth seal structure for a front inner cover and a rear inner cover, which is characterized in that an inner water jacket, an outer water jacket, a front flange and a rear flange are assembled and welded to form a motor base, a water retaining bar is welded on the outer circle of the inner water jacket to form a baffling type waterway and then is welded with the outer water jacket in a pressing way, a channel steel is arranged on the outer wall of the base to form a circulating cooling air channel, labyrinth water cooling channels are arranged on a front end cover and a rear end cover and are communicated with the baffling type waterway of the base, axial ventilation holes are uniformly distributed on two end surfaces of a stator core, rib plates are uniformly distributed on a rotating shaft core baffle to form an axial ventilation channel, two cylindrical roller bearings and a deep groove ball bearing are respectively arranged on the front end cover and the rear end cover and a motor rotating shaft, one cylindrical roller bearing and one deep groove ball bearing are arranged at the shaft extension end of the motor rotating shaft, and the other cylindrical roller bearing is an insulating bearing and is arranged at the tail end of the motor rotating shaft. The cooling fan adopts a centrifugal fan, is fixedly connected with the motor rotating shaft and is positioned between the non-shaft extending end of the rotor and the rear end cover. The rear inner cover is provided with the conducting ring to prevent shaft current from ablating the bearing so as to ensure the service life of the bearing, the conducting ring is positioned between the bearing and the inner cover oil storage chamber, the rotor adopts a single-cage structure, and the stator and rotor grooves are matched with each other by adopting rotor multi-groove matching, so that the motor vibration and noise caused by higher harmonic waves generated during low-frequency starting of the motor are effectively restrained. The main insulator wire passing assembly and the control insulator wire passing assembly are arranged in the junction box, and the installation guide rail and the universal junction box terminal are used for fixing the main insulator wire passing assembly and the control insulator wire passing assembly for connecting control wires. The wire outlet cavity of the junction box is provided with a high-voltage cable connector, and the flange of the base is provided with an oil filling hole and an oil drain hole, so that oil can be conveniently filled into the bearing at regular intervals. The high-voltage explosion-proof high-voltage variable-frequency speed-regulating three-phase asynchronous motor for the scraper conveyor, which is manufactured according to the scheme, adopts the motor cooling system which is formed by combining air cooling and outer shell water cooling by adopting the internal and external manufactured circulating air paths, can effectively control the temperature rise of the stator, the rotor, the winding thereof and the supporting part of the rotating shaft, and reliably ensures the normal operation of the motor. The rotor adopts a single cage structure, and the performance index of the motor is greatly improved. The energy-saving and high-efficiency standard is achieved, and the driving requirement of a scraper conveyor transmission system is met. Compared with the prior art, the invention has the advantages of novel structure, strong applicability, strong overload capacity, small vibration, low noise, stable operation, good reliability, low energy consumption, good protective performance, long service life and the like.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a partial cross-sectional structure of a mining high-voltage flameproof variable-frequency speed-regulating three-phase asynchronous motor.
Fig. 2 is a schematic view of a view angle structure of the ventilation pipe in fig. 1.
In the figure: IP67 seal structure 1, front cover 2, front end cover 3, explosion-proof labyrinth seal structure 4, high voltage cable connector 5, ventilation pipe 6, stator 7, frame 8, rotor 9, motor shaft 10, cooling fan 11, rear end cover 12, conducting ring 13, ventilation hole 14.
The specific embodiment is as follows:
for the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "front", "rear", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present invention.
The present invention provides the following specific examples.
Referring to fig. 1 and 2, the mining high-voltage explosion-proof variable frequency speed-regulating three-phase asynchronous motor comprises a machine base 8, a motor rotating shaft 10, a rotor 9, a stator 7, a cooling fan 11, a front end cover 3, a rear end cover 12, a front outer cover 2, an IP67 sealing structure 1, a front inner cover, a rear inner cover and a conducting ring 13, wherein the front inner cover and the rear inner cover adopt an explosion-proof labyrinth sealing structure 4, the machine base 8 is formed by assembling and welding an inner water jacket, an outer water jacket, a front flange and a rear flange, water retaining bars are welded on the outer circle of the inner water jacket, the water retaining bars form a baffling water channel and are welded with the outer water jacket in a pressing way, a channel steel is arranged on the outer wall of the machine base 8 to form a circulating cooling air channel, the front end cover 3 and the rear end cover 12 are provided with labyrinth water cooling channels and are communicated with the machine base 8, ventilating pipes 6 are assembled on the stator core, the two end surfaces of the stator core are uniformly provided with axial ventilation holes 14, and the rotating shaft core is uniformly provided with rib plates to form an axial ventilation channel, the front end cover 3, the rear end cover 12 and the motor rotating shaft 10 are respectively provided with two cylindrical roller bearings and a deep groove ball bearing, wherein one cylindrical roller bearing and one deep groove ball bearing are arranged at the shaft extension end of the motor rotating shaft 10, the other cylindrical roller bearing is an insulating bearing and is arranged at the tail end of the motor rotating shaft 10, the cooling fan 11 adopts a core-separating fan which is fixedly connected with the motor rotating shaft 10 and is positioned between the non-shaft extension end of the rotor 9 and the rear end cover 12, the rear inner cover is provided with a conducting ring 13, the conducting ring 13 is positioned between the bearing and an inner cover oil storage chamber, the rotor 9 adopts a single cage structure, the stator 7 and the rotor 9 are matched by adopting multi-groove matching of the rotor 9, the main insulator wire passing component and the control insulator wire passing component are arranged in the junction box, and the guide rail and the universal junction box terminal are arranged on the junction box to fix the main insulator wire passing component and the control insulator wire passing component, the wire outlet cavity of the junction box is provided with a high-voltage cable connector 5, and a flange of the machine seat 8 is provided with an oil filling hole and an oil drain hole.
The water retaining strips are arranged on the outer circle of the inner water jacket to form a baffling type waterway which is assembled with the outer water jacket, and the positions on the outer circle of the outer water jacket corresponding to the water retaining strips are provided with anti-bulge holes for plug welding and fixing. The outside of the machine base 8 is provided with channel steel corresponding to the ventilation holes 14 on the inner wall of the machine base 8, and the channel steel is uniformly distributed with axial ventilation holes 14 on the iron core of the stator 7 and the motor rotating shaft 10 to form a cooling channel.
The front end cover 3 and the rear end cover 12 are labyrinth annular waterways and are connected with two ends of the machine base 8 to form a circulating waterway. The cooling inner fan is fixedly connected with the motor rotating shaft 10 and is positioned between the rotor 9 and the rear end cover 12; the sealing structure is IP67 sealing structure 1, and the IP67 sealing structure 1 is fixed on the front outer cover 2 and is positioned between the shaft extension end and the oil storage chamber of the front outer cover 2. The conductive ring 13 is fixed on the rear inner cover and is positioned between the cylindrical roller insulating bearings.
The front inner cover and the rear inner cover of the invention are formed by adopting an explosion-proof labyrinth seal structure 4, the motor base 8 is formed by adopting an inner water jacket, an outer water jacket, a front flange and a rear flange in a welding way, a water baffle bar is welded on the outer circle of the inner water jacket to form a baffling type water channel, the baffling type water channel is pressed and welded with the outer water jacket, a channel steel is arranged on the outer wall of the base 8 to form a circulating cooling air channel, a labyrinth water cooling channel is arranged on the front end cover 12 and the rear end cover 12 and is communicated with the baffling type water channel of the base 8, axial ventilation holes 14 are uniformly distributed on two end surfaces of a stator 7 iron core, rib plates are uniformly distributed on the rotor iron core to form an axial ventilation channel, two cylindrical roller bearings and a deep groove ball bearing are respectively arranged on the front end cover 12 and the motor rotor shaft 10, one cylindrical roller bearing and one deep groove ball bearing are arranged at the shaft extension end of the motor rotor shaft 10, the other cylindrical roller bearing is an insulating bearing and is arranged at the tail end of the motor rotor shaft 10. The cooling fan 11 adopts a centrifugal fan, is fixedly connected with the motor rotating shaft 10 and is positioned between the non-shaft extending end of the rotor 9 and the rear end cover 12. The rear inner cover is provided with the conducting ring 13 to prevent shaft current from ablating the bearing so as to ensure the service life of the bearing, the conducting ring is positioned between the bearing and the inner cover oil storage chamber, the rotor 9 adopts a single-cage structure, and the stator and rotor 9 grooves are matched with each other by adopting the rotor 9 multi-groove matching, so that the motor vibration and noise caused by higher harmonic waves generated during low-frequency starting of the motor are effectively restrained. The main insulator wire passing assembly and the control insulator wire passing assembly are arranged in the junction box, and the installation guide rail and the universal junction box terminal are used for fixing the main insulator wire passing assembly and the control insulator wire passing assembly for connecting control wires. The high-voltage cable connector 5 is arranged in the wire outlet cavity of the junction box, and the flange of the machine base 8 is provided with an oil filling hole and an oil drain hole, so that oil can be conveniently filled into the bearing at regular intervals. The high-voltage explosion-proof high-voltage variable-frequency speed-regulating three-phase asynchronous motor for the scraper conveyor, which is manufactured according to the scheme, adopts a motor cooling system with the inside and the outside of which are manufactured into a circulating air path to form the combination of air cooling and outer shell water cooling, so that the temperature rise of the stator 7, the rotor 9, windings thereof and a rotating shaft supporting part can be effectively controlled, and the normal operation of the motor can be reliably ensured. The rotor 9 adopts a single cage structure, and the performance index of the motor is greatly improved. The energy-saving and high-efficiency standard is achieved, and the driving requirement of a scraper conveyor transmission system is met.
Compared with the prior art, the motor has the advantages of novel structure, strong applicability, strong overload capacity, small vibration, low noise, stable operation, good reliability, low energy consumption, good protective performance, long service life and the like.
The parameters of the motor are 2000kW of rated power, 3300V of rated voltage, 404A of rated current, 1493r/min of rated rotating speed, IP67 of protection grade, 180 (H) of heat grading, 96% of efficiency, 0.89 of power factor, 2.2 of maximum torque, 1.2 of blocking torque, 9.0 of blocking current, water-cooled ICW37 of cooling mode, B5 of installation type, S1 of continuous working system of working system, and the motor is a high-power and high-efficiency high-voltage flameproof variable-frequency speed-regulating three-phase asynchronous motor.
Claims (6)
1. A mining high-voltage flameproof variable-frequency speed-regulating three-phase asynchronous motor is characterized in that: the mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor comprises a machine base, a motor rotating shaft, a rotor, a stator, a cooling fan, a front end cover, a rear end cover, a front outer cover, a sealing structure, a front inner cover, a rear inner cover and a conducting ring, wherein the front inner cover and the rear inner cover adopt explosion-proof labyrinth sealing structures, the machine base is formed by assembling and welding an inner water jacket, an outer water jacket, a front flange and a rear flange, water retaining bars are welded on the outer circle of the inner water jacket, the water retaining bars form a baffling waterway and are welded with the outer water jacket in a pressing way, a channel steel is arranged on the outer wall of the machine base to form a circulating cooling air channel, the front end cover and the rear end cover are provided with labyrinth water cooling channels and are communicated with the machine base baffling waterway, a ventilation pipe is assembled on a stator core, axial ventilation holes are uniformly distributed on two end faces of the stator core, rib plates are uniformly distributed on the iron core of the rotating shaft to form an axial ventilation channel, the front end cover, the rear end cover and the motor rotating shaft are respectively provided with two cylindrical roller bearings and a deep groove ball bearing, wherein one cylindrical roller bearing and one deep groove ball bearing are arranged at the shaft extension end of the motor rotating shaft, the other cylindrical roller bearing is an insulating bearing and is arranged at the tail end of the motor rotating shaft, the cooling fan is a centrifugal fan which is fixedly connected with the motor rotating shaft and is positioned between the non-shaft extension end of the rotor and the rear end cover, the rear inner cover is provided with a conducting ring, the conducting ring is positioned between the bearing and the inner cover oil storage chamber, the rotor adopts a single-cage structure, the stator and the rotor groove are matched by adopting rotor multi-groove matching, the main insulator wire passing component and the control insulator wire passing component are arranged in the junction box, the guide rail and the universal junction box terminal are arranged on the junction box to fix the main insulator wire passing component and the control insulator wire passing component, the wire outlet cavity of the junction box is provided with a high-voltage cable connector, the flange of the machine seat is provided with an oil filling hole and an oil discharging hole.
2. The mining high-voltage explosion-proof variable frequency speed three-phase asynchronous motor according to claim 1, wherein: the water retaining strips are arranged on the outer circle of the inner water jacket to form a baffling type waterway which is assembled with the outer water jacket, and the positions on the outer circle of the outer water jacket corresponding to the water retaining strips are provided with anti-bulge holes for plug welding and fixing.
3. The mining high-voltage explosion-proof variable frequency speed three-phase asynchronous motor according to claim 2, wherein: the outside of the machine base is provided with channel steel corresponding to the ventilation holes on the inner wall of the machine base, and axial ventilation holes are uniformly distributed on the stator core and the motor rotating shaft, and form a cooling channel.
4. The mining high-voltage explosion-proof variable frequency speed three-phase asynchronous motor according to claim 1, wherein: the front end cover and the rear end cover are labyrinth annular waterways and are connected with two ends of the machine base to form a circulating waterway.
5. The mining high-voltage flameproof variable frequency speed three-phase asynchronous motor according to any one of claims 1 to 4, wherein: the cooling inner fan is fixedly connected with the motor rotating shaft and is positioned between the rotor and the rear end cover; the sealing structure is an IP67 sealing structure, and the IP67 sealing structure is fixed on the front outer cover and is positioned between the shaft extension end and the front outer cover oil storage chamber.
6. The mining high-voltage explosion-proof variable frequency speed three-phase asynchronous motor according to claim 5, wherein: the conductive ring is fixed on the rear inner cover and is positioned between the cylindrical roller insulating bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792598.5A CN110492655B (en) | 2019-08-26 | 2019-08-26 | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792598.5A CN110492655B (en) | 2019-08-26 | 2019-08-26 | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110492655A CN110492655A (en) | 2019-11-22 |
| CN110492655B true CN110492655B (en) | 2024-03-29 |
Family
ID=68554242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910792598.5A Active CN110492655B (en) | 2019-08-26 | 2019-08-26 | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110492655B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416466B (en) * | 2020-03-26 | 2021-08-03 | 厦门势拓伺服科技股份有限公司 | Mining flame-proof type permanent magnet synchronous variable frequency traction motor wiring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU65696U1 (en) * | 2006-09-08 | 2007-08-10 | Закрытое акционерное общество "Динамо-Плюс" | THREE-PHASE ASYNCHRONOUS CRANE MOTOR WITH PHASE ROTOR |
| CN201584871U (en) * | 2009-07-08 | 2010-09-15 | 南阳防爆集团股份有限公司 | Explosion-proof type three-phase asynchronous motor used for scraper conveyor |
| CN105634209A (en) * | 2016-03-15 | 2016-06-01 | 冯亮 | Totally enclosed motor for achieving separate cooling of stator and rotor by dual-channel fan |
| 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 |
| CN207053352U (en) * | 2017-07-13 | 2018-02-27 | 中车永济电机有限公司 | Frequency converting speed regulating three-phase asynchronous electromotor peculiar to vessel |
| CN210468979U (en) * | 2019-08-26 | 2020-05-05 | 宁夏西北骏马电机制造股份有限公司 | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123659A1 (en) * | 2012-02-23 | 2013-08-29 | Zhang Leizhen | Oil mist-free high-speed electric main shaft |
-
2019
- 2019-08-26 CN CN201910792598.5A patent/CN110492655B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU65696U1 (en) * | 2006-09-08 | 2007-08-10 | Закрытое акционерное общество "Динамо-Плюс" | THREE-PHASE ASYNCHRONOUS CRANE MOTOR WITH PHASE ROTOR |
| CN201584871U (en) * | 2009-07-08 | 2010-09-15 | 南阳防爆集团股份有限公司 | Explosion-proof type three-phase asynchronous motor used for scraper conveyor |
| CN105634209A (en) * | 2016-03-15 | 2016-06-01 | 冯亮 | Totally enclosed motor for achieving separate cooling of stator and rotor by dual-channel fan |
| 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 |
| CN207053352U (en) * | 2017-07-13 | 2018-02-27 | 中车永济电机有限公司 | Frequency converting speed regulating three-phase asynchronous electromotor peculiar to vessel |
| CN210468979U (en) * | 2019-08-26 | 2020-05-05 | 宁夏西北骏马电机制造股份有限公司 | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110492655A (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9825509B2 (en) | Rotating electrical machine | |
| CN103269138A (en) | Multi-inner cavity U-shaped cooling system of motor | |
| CN207652169U (en) | A kind of high-power frequency conversion speed-regulating asynchronous motor of strong applicability | |
| US8901789B2 (en) | Electric machine module | |
| KR20200056389A (en) | Electric motor and inverter assembly | |
| CN105006904A (en) | High efficiency compact type high voltage explosion-proof motor | |
| CN110492655B (en) | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor | |
| CN202374093U (en) | 315KW mining anti-explosion and frequency-conversion motor all-in-one machine | |
| CN114498993B (en) | Compact semi-direct-drive permanent magnet synchronous wind driven generator | |
| CN209982218U (en) | Permanent magnet brushless direct current motor with good insulation stability | |
| CN201918830U (en) | Variable-frequency motor with rear-end wire outlet structure for high-power locomotive | |
| CN210468979U (en) | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor | |
| CN105099043A (en) | Variable-frequency motor | |
| CN204947777U (en) | A kind of variable-frequency motor | |
| CN114204757B (en) | Manufacturing method of flameproof variable-frequency low-speed direct-drive water-cooled three-phase asynchronous motor | |
| CN202260927U (en) | Flue three-phase asynchronous motor | |
| EP2732533A2 (en) | Electric machine module | |
| CN202260679U (en) | Motor for high-protection axial flow fan and high-protection axial flow fan with motor | |
| CN212063712U (en) | Built-in drive outer rotor direct-current brushless motor conforming to IP55 | |
| CN103023191A (en) | Flame-proof type natural cooling asynchronous motor | |
| CN110445333B (en) | Single-cage copper bar rotor for explosion-proof variable-frequency speed-regulating asynchronous motor | |
| CN203774940U (en) | Oiling bearing traction fan motor for high-power locomotive | |
| CN112671124A (en) | Motor inner stator and motor | |
| CN215733900U (en) | Switched reluctance speed-regulating traction motor for mine explosion prevention | |
| CN110649776A (en) | High-power high-pressure high-efficiency three-phase asynchronous motor with multiple poles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |