CN202978602U - Flame-proof type frequency conversion integrated permanent-magnet synchronous motor - Google Patents
Flame-proof type frequency conversion integrated permanent-magnet synchronous motor Download PDFInfo
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- CN202978602U CN202978602U CN2012206653370U CN201220665337U CN202978602U CN 202978602 U CN202978602 U CN 202978602U CN 2012206653370 U CN2012206653370 U CN 2012206653370U CN 201220665337 U CN201220665337 U CN 201220665337U CN 202978602 U CN202978602 U CN 202978602U
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Abstract
The utility model discloses a flame-proof type frequency conversion integrated permanent-magnet synchronous motor, which comprises a motor base and a frequency conversion control cabinet, wherein the frequency conversion control cabinet is welded on the motor base; and a frequency converter is mounted in the frequency conversion control cabinet. The inside of the frequency conversion control cabinet is divided into a first cavity, a second cavity and a third cavity through separation plates. The motor base comprises a cylinder and an end cap, wherein the cylinder is formed by an inner cylinder and an outer cylinder which are sleeved together; the inner cylinder and the outer cylinder are integrally welded in an interference fit manner; a spiral groove is formed on the outer cylinder surface of the inner cylinder; the end cap comprises a first end cap and a second end cap which are respectively located at two ends of the cylinder and a third end cap located inside the cylinder; a rotor and a stator are arranged between the first end cap and the third end cap; and an input reactor and an output reactor are arranged between the third end cap and the second end cap. The permanent-magnet synchronous motor is novel in structure, is reasonable and compact, can effectively utilize the limited space, is compact in product structure, high in power factor and efficiency, large in power density, and can effectively reduce the motor volume and the energy consumption.
Description
Technical field
The utility model relates to a kind of explosion-proof frequency conversion integrated permanent-magnet synchronous motor, is mainly used in the coal excavation apparatus such as colliery underground coal plough, scrapper conveyor, belt feeder.
Background technology
At present, the coal excavation apparatus frequency conversion integrated motors used such as colliery underground coal plough are the frequency conversion integrated asynchronous motor from external import entirely, and domestic also do not have a product of the same type.Due to expensive from external import frequency conversion integrated motor; the maintenance trouble is subjected to the various factors such as technical limitations, trade protectionism, and asynchronous motor is compared with permanent magnet synchronous motor in addition; power density and efficient are all on the low side, are unfavorable for dwindling motor volume and reduce energy resource consumption.
The utility model content
The purpose of this utility model is to provide a kind of permagnetic synchronous motor, has novel structure, rationally, effectively utilizes the confined space, and product with compact structure, power factor are high, and power density is large, effectively reduces the consumption of motor volume and the energy.
The utility model to achieve these goals, the technical solution of employing is:
A kind of permagnetic synchronous motor comprises support and frequency-conversion control cabinet, and described frequency-conversion control cabinet is welded on support;
The inside of described frequency-conversion control cabinet is divided into the first cavity, the second cavity and the 3rd cavity by dividing plate, be provided with rectifier bridge unit, DC side electric capacity of voltage regulation, and inverter bridge unit in described the first cavity, the three is integrated on cooled plate, and described cooled plate inside is provided with U-shaped array water cooling tube; Be provided with controller unit and contact unit in described the second cavity; Be provided with wiring of input power source terminal and power supply major-minor binding post in the 3rd cavity;
Described support comprises cylindrical shell and end cap, cylindrical shell is made of inner core and the urceolus of phase collocated, inner core and urceolus interference fit are integrally welded, have helical groove on the urceolus face of inner core, and U-shaped array water cooling tube is connected by the water pipe with 3/4 pipe screw joint with helical groove; End cap comprises the first end cap and the second end cap that is positioned at the cylindrical shell two ends, and the 3rd end cap and the annulus that are positioned at cylindrical shell, between the first end cap and the 3rd end cap, rotor and stator is set, and between the 3rd end cap and the second end cap, input reactance device and out put reactor is set;
Described the first cavity, the second cavity and support inner core are connected and form the first flame proof cavity, and the 3rd cavity is the second flame proof cavity.
Preferably, described cylindrical shell is communicated with by the first cable-through hole with the second cavity, have the second cable-through hole on annulus, have the 3rd cable-through hole on dividing plate between the first cavity and the second cavity, described contact unit, input reactance device, rectifier bridge unit, DC side electric capacity of voltage regulation, inverter bridge unit and out put reactor are connected successively, controller unit is connected with the inverter bridge unit, and described contact unit connects three-phase alternating-current supply, out put reactor connecting stator winding.
Preferably, the drive end cover of described rotor has drive end bearing, and the two ends of drive end bearing are provided with drive end bearing inner cap and drive end bearing enclosing cover, drive end bearing inner cap, drive end bearing, and the drive end bearing enclosing cover be contained in first end and cover; The anti-drive end cover of rotor has non-driven-end bearing, and the two ends of non-driven-end bearing are provided with non-driven-end bearing inner cap and non-driven-end bearing enclosing cover, non-driven-end bearing inner cap, non-driven-end bearing, and the non-driven-end bearing enclosing cover be contained on the 3rd end cap.
Preferably, described rotor comprises rotor core and the rotating shaft of interference fit between the two, is equipped with magnet steel in rotor core, and magnet steel is fixed by the baffle plate at two ends, and the magnetic pole of magnet steel becomes the internal type V structure, is provided with flabellum on baffle plate; Described rotating shaft is provided with circumferential explosion suppresion surface.
Preferably, be provided with the double thread cover that connects both on described cylindrical shell and the second cavity, the double thread of the second cavity one end puts coupling nut, and the double thread of cylindrical shell one end is applied mechanically oil pipe and is connected to non-driven-end bearing.The oil injection structure of this kind non-driven-end bearing, double thread has put flame proof thread, satisfies the flame proof requirement, during oiling, nut is backed out, and loads onto lubricating cup, uses oil gun that lubricating grease is driven into bearing inside by high-pressure oil pipe, realizes lubricated to non-driven-end bearing.
Preferably, described drive end bearing adopts inner ring without rib cylindrical roller insulation bearing, and non-driven-end bearing adopts single-groove grooved ball insulation bearing.
Preferably, described rotor, non-driven-end bearing, non-driven-end bearing inner cap, non-driven-end bearing enclosing cover, the 3rd end cap are assembled into one, are packed into by the drive end of cylindrical shell, and the 3rd end cap is stuck on the annulus of cylinder inboard wall; Facilitated the motor general assembly.
The beneficial effects of the utility model:
This kind permagnetic synchronous motor, support and frequency-conversion control cabinet integrated welding are connected together, motor body, input reactance device, out put reactor, and frequency converter be arranged in support, rectifier bridge unit, DC side electric capacity of voltage regulation, and the inverter bridge unit be arranged in the first cavity of frequency-conversion control cabinet, controller unit and contact unit are arranged in the second cavity of frequency-conversion control cabinet, and this kind layout type machine volume is little, compact conformation, effectively shield electromagnetic interference, and flame proof effect is good.
Have helical groove on the support cylindrical shell, the lower end of cooled plate arranges U-shaped array water cooling tube, both link together by the high-pressure water pipe with 3/4 pipe screw joint, the helical groove water-cooled of U-shaped array water cooling tube and cylindrical shell is formed integrated water cooling structure, simultaneously cooling motor, reactor and frequency converter, and rectifier bridge unit, DC side electric capacity of voltage regulation, and inverter bridge unit.Whole cooling water channel maximum can be born the hydraulic pressure of 3MPa, and when being worth greater than this, relief valve is opened pressure release.
Stator winding is the moulding lap winding, adopts the insulation system of few glue, and in order to satisfy the requirement of motor weak-magnetic speed-regulating, design of electrical motor becomes permagnetic synchronous motor, and rotor magnetic pole is designed to the internal type V structure.
The binding face of the first end cap and cylindrical shell, the binding face of the first end cap and drive end bearing inner cap, the binding face of drive end bearing inner cap and rotating shaft, the binding face of the second end cap and cylindrical shell, the binding face of the inwall of binding post and frequency-conversion control cabinet, power supply major-minor binding post, above binding face and binding post all reach the flame proof requirement, and overall design meets the flame proof requirement.
The drive end cover of described rotor has drive end bearing, and the two ends of drive end bearing are provided with drive end bearing inner cap and drive end bearing enclosing cover, drive end bearing inner cap, drive end bearing, and the drive end bearing enclosing cover be contained in first end and cover; The anti-drive end cover of rotor has non-driven-end bearing, and the two ends of non-driven-end bearing are provided with non-driven-end bearing inner cap and non-driven-end bearing enclosing cover, non-driven-end bearing inner cap, non-driven-end bearing, and the non-driven-end bearing enclosing cover be contained on the 3rd end cap.
The cooperation of the end cap of anti-drive end is built-in type, the motor general assembly is convenient, non-drive end shield coordinates seam to be designed to built-in type, like this in the total process of assembling of motor, just can be first rotor, the assembling parts such as the 3rd end cap, non-driven-end bearing inner cap, non-driven-end bearing enclosing cover, non-driven-end bearing become an integral body, are then packing into from drive end integral body.
Be provided with flabellum on the baffle plate at magnet steel two ends, can the cooling stator winding end of agitation air when rotor.
Drive end bearing adopts inner ring without rib cylindrical roller insulation bearing, non-driven-end bearing adopts single-groove grooved ball insulation bearing, can prevent that shaft current is to the infringement of bearing, bearing lubrication is grease lubrication, drive end and anti-drive end at motor all are equipped with disc and degras box, can better realize the recovery of bearing lubrication and grease.
Be provided with the double thread cover between cylindrical shell and the second cavity, the double thread cover is positioned at an end coupling nut of the second cavity, and an end that is positioned at cylindrical shell is connected to non-driven-end bearing by pipeline, and this kind design is the oiling device that meets the flame proof requirement.
In order to realize vector control, at anti-drive end, resolver is installed, come detection rotor position more accurately.
The technical indicator that this kind permagnetic synchronous motor is realized is as follows:
Rated power: 400kW
Rated voltage: 1140V
Rated current: 250A
Rated frequency: 50Hz
Rated speed: 1000rpm
The range of speeds 0 ~ 1800rpm, the wherein permanent torque operation of 0 ~ 1000rpm 1000 ~ 1800rpm output-constant operation
Explosive-proof grade: ExdI
Motor start and stop frequency: 120 times/hour
Overload capacity: 1.7 times of overloads continue 2min
System frequency: 〉=94%
Description of drawings
Fig. 1 is the structural representation of permagnetic synchronous motor.
Fig. 2 is the cutaway view of support and frequency-conversion control cabinet.
Fig. 3 is the hardware connection layout of permagnetic synchronous motor.
Fig. 4 is the cutaway view of permagnetic synchronous motor.
Fig. 5 is the cutaway view of permagnetic synchronous motor.
Fig. 6 is the structural representation of inner core.
Fig. 7 is the structural representation of rotor.
Fig. 8 is A-A cutaway view in Fig. 7.
Fig. 9 is the cutaway view at motor anti-drive end place.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
In conjunction with Fig. 1 to Fig. 9, a kind of permagnetic synchronous motor comprises support 1 and frequency-conversion control cabinet 2, and described frequency-conversion control cabinet 2 is welded on support 1.
The inside of described frequency-conversion control cabinet 2 is divided into the first cavity 21, the second cavity 22 and the 3rd cavity 23 by dividing plate 31,32, be provided with rectifier bridge unit 41, DC side electric capacity of voltage regulation 42, and inverter bridge unit 43 in described the first cavity 21, the three is integrated on cooled plate 44, and described cooled plate 44 inside are provided with U-shaped array water cooling tube.Be provided with in described the second cavity 22 in controller unit 45 and contact unit 46, the three cavitys 23 and be provided with wiring of input power source terminal and power supply major-minor binding post.
Described support 1 comprises cylindrical shell and end cap, cylindrical shell is made of inner core 11 and the urceolus 12 of phase collocated, inner core 11 and urceolus 12 interference fit are integrally welded, have helical groove 13 on the urceolus face of inner core 11, U-shaped array water cooling tube is connected by the water pipe with 3/4 pipe screw joint with helical groove 13, with the helical groove water-cooled composition integrated water cooling structure of U-shaped array water cooling tube and cylindrical shell.End cap comprises the first end cap 14 and the second end cap 15 that is positioned at the cylindrical shell two ends, and the 3rd end cap 16 and the annulus 17 that are positioned at cylindrical shell, arrange between the first end cap 14 and the 3rd end cap 16 between rotor 51 and stator 52, the three end caps 16 and the second end cap 15 input reactance device 47 and out put reactor 48 are set.
Described the first cavity 21, the second cavity 22 and support inner core 11 are connected and form the first flame proof cavity, and the 3rd cavity 23 is second flame proof cavitys.
Described cylindrical shell is communicated with by the first cable-through hole 61 with the second cavity 22, have the second cable-through hole 62 on annulus 17, have the 3rd cable-through hole 63 on dividing plate between the first cavity 21 and the second cavity 22, described contact unit 46, input reactance device 47, rectifier bridge unit 41, DC side electric capacity of voltage regulation 42, inverter bridge unit 43 and out put reactor 48 are connected successively, controller unit 45 is connected with inverter bridge unit 43, described contact unit 46 connects three-phase alternating-current supply, out put reactor 48 connecting stator windings.
The drive end cover of described rotor 51 has drive end bearing 71, the two ends of drive end bearing 71 are provided with drive end bearing inner cap 72 and drive end bearing enclosing cover 73, drive end bearing inner cap 72, drive end bearing 71, and drive end bearing enclosing cover 73 be contained on the first end cap 14.The anti-drive end cover of rotor 51 has non-driven-end bearing 74, the two ends of non-driven-end bearing 74 are provided with non-driven-end bearing inner cap 75 and non-driven-end bearing enclosing cover 76, non-driven-end bearing inner cap 75, non-driven-end bearing 74, and non-driven-end bearing enclosing cover 76 be contained on the 3rd end cap 16.Described drive end bearing 71 adopts inner ring without rib cylindrical roller insulation bearing, and non-driven-end bearing 74 adopts single-groove grooved ball insulation bearing.
Described rotor 51 comprises rotor core 511 and the rotating shaft 512 of interference fit between the two, be equipped with magnet steel 513 in rotor core 511, magnet steel 513 is fixing by the baffle plate 514 at two ends, and the magnetic pole of magnet steel 513 becomes the internal type V structure, is provided with flabellum 515 on baffle plate 514; Described rotating shaft 512 is provided with circumferential explosion suppresion surface.
The double thread that is provided with double thread cover 8, the second cavity 22 1 ends that connect both on described cylindrical shell and the second cavity 22 overlaps coupling nut 81 on 8, and the double thread cover 8 use oil pipes 82 of cylindrical shell one end are connected to non-driven-end bearing 74.The oil injection structure of this kind non-driven-end bearing has flame proof thread on double thread cover 8, satisfies the flame proof requirement, during oiling, nut 81 is backed out, loaded onto lubricating cup, use oil gun that lubricating grease is driven into bearing inside by high-pressure oil pipe, realize lubricated to non-driven-end bearing 74.
Described rotor 51, non-driven-end bearing 74, non-driven-end bearing inner cap 75, non-driven-end bearing enclosing cover 76, the 3rd end cap 16 are assembled into one, are packed into by the drive end of cylindrical shell, and the 3rd end cap 16 is stuck on the annulus 17 of cylinder inboard wall; Facilitated the motor general assembly.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection range of the present utility model.
Claims (7)
1. a permagnetic synchronous motor, is characterized in that, comprises support and frequency-conversion control cabinet, and described frequency-conversion control cabinet is welded on support;
The inside of described frequency-conversion control cabinet is divided into the first cavity, the second cavity and the 3rd cavity by dividing plate, be provided with rectifier bridge unit, DC side electric capacity of voltage regulation, and inverter bridge unit in described the first cavity, the three is integrated on cooled plate, and described cooled plate inside is provided with U-shaped array water cooling tube; Be provided with controller unit and contact unit in described the second cavity; Be provided with wiring of input power source terminal and power supply major-minor binding post in the 3rd cavity;
Described support comprises cylindrical shell and end cap, cylindrical shell is made of inner core and the urceolus of phase collocated, inner core and urceolus interference fit are integrally welded, have helical groove on the urceolus face of inner core, and U-shaped array water cooling tube is connected by the water pipe with 3/4 pipe screw joint with helical groove; End cap comprises the first end cap and the second end cap that is positioned at the cylindrical shell two ends, and the 3rd end cap and the annulus that are positioned at cylindrical shell, between the first end cap and the 3rd end cap, rotor and stator is set, and between the 3rd end cap and the second end cap, input reactance device and out put reactor is set;
Described the first cavity, the second cavity and support inner core are connected and form the first flame proof cavity, and the 3rd cavity is the second flame proof cavity.
2. a kind of permagnetic synchronous motor according to claim 1, it is characterized in that, described cylindrical shell is communicated with by the first cable-through hole with the second cavity, have the second cable-through hole on annulus, have the 3rd cable-through hole on dividing plate between the first cavity and the second cavity, described contact unit, input reactance device, rectifier bridge unit, DC side electric capacity of voltage regulation, inverter bridge unit and out put reactor are connected successively, controller unit is connected with the inverter bridge unit, described contact unit connects three-phase alternating-current supply, out put reactor connecting stator winding.
3. a kind of permagnetic synchronous motor according to claim 1, it is characterized in that, the drive end cover of described rotor has drive end bearing, the two ends of drive end bearing are provided with drive end bearing inner cap and drive end bearing enclosing cover, drive end bearing inner cap, drive end bearing, and the drive end bearing enclosing cover be contained in first end and cover; The anti-drive end cover of rotor has non-driven-end bearing, and the two ends of non-driven-end bearing are provided with non-driven-end bearing inner cap and non-driven-end bearing enclosing cover, non-driven-end bearing inner cap, non-driven-end bearing, and the non-driven-end bearing enclosing cover be contained on the 3rd end cap.
4. a kind of permagnetic synchronous motor according to claim 1, it is characterized in that, described rotor comprises rotor core and the rotating shaft of interference fit between the two, be equipped with magnet steel in rotor core, magnet steel is fixed by the baffle plate at two ends, the magnetic pole of magnet steel becomes the internal type V structure, is provided with flabellum on baffle plate; Described rotating shaft is provided with circumferential explosion suppresion surface.
5. a kind of permagnetic synchronous motor according to claim 3, it is characterized in that, be provided with the double thread cover that connects both on described cylindrical shell and the second cavity, the double thread of the second cavity one end puts coupling nut, and the double thread of cylindrical shell one end is applied mechanically oil pipe and is connected to non-driven-end bearing.
6. a kind of permagnetic synchronous motor according to claim 3, is characterized in that, described drive end bearing adopts inner ring without rib cylindrical roller insulation bearing, and non-driven-end bearing adopts single-groove grooved ball insulation bearing.
7. a kind of permagnetic synchronous motor according to claim 3, it is characterized in that, described rotor, non-driven-end bearing, non-driven-end bearing inner cap, non-driven-end bearing enclosing cover, the 3rd end cap are assembled into one, are packed into by the drive end of cylindrical shell, and the 3rd end cap is stuck on the annulus of cylinder inboard wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206653370U CN202978602U (en) | 2012-12-06 | 2012-12-06 | Flame-proof type frequency conversion integrated permanent-magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206653370U CN202978602U (en) | 2012-12-06 | 2012-12-06 | Flame-proof type frequency conversion integrated permanent-magnet synchronous motor |
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| Publication Number | Publication Date |
|---|---|
| CN202978602U true CN202978602U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206653370U Expired - Fee Related CN202978602U (en) | 2012-12-06 | 2012-12-06 | Flame-proof type frequency conversion integrated permanent-magnet synchronous motor |
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| CN (1) | CN202978602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983682A (en) * | 2012-12-06 | 2013-03-20 | 青岛海西电机有限公司 | Flame-proof type frequency conversion integrated permanent-magnet synchronous motor |
| CN109520639A (en) * | 2017-09-19 | 2019-03-26 | 中广核研究院有限公司 | A kind of device of emergency diesel dynamo connecting rod on-line temperature monitoring |
-
2012
- 2012-12-06 CN CN2012206653370U patent/CN202978602U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983682A (en) * | 2012-12-06 | 2013-03-20 | 青岛海西电机有限公司 | Flame-proof type frequency conversion integrated permanent-magnet synchronous motor |
| CN102983682B (en) * | 2012-12-06 | 2015-02-04 | 青岛海西电机有限公司 | Flame-proof type frequency conversion integrated permanent-magnet synchronous motor |
| CN109520639A (en) * | 2017-09-19 | 2019-03-26 | 中广核研究院有限公司 | A kind of device of emergency diesel dynamo connecting rod on-line temperature monitoring |
| CN109520639B (en) * | 2017-09-19 | 2020-08-21 | 中广核研究院有限公司 | Device for monitoring temperature of connecting rod of emergency diesel generator on line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20211206 |