CN2531568Y - Mine flame-proof type switch reluctance motor - Google Patents
Mine flame-proof type switch reluctance motor Download PDFInfo
- Publication number
- CN2531568Y CN2531568Y CN01273689U CN01273689U CN2531568Y CN 2531568 Y CN2531568 Y CN 2531568Y CN 01273689 U CN01273689 U CN 01273689U CN 01273689 U CN01273689 U CN 01273689U CN 2531568 Y CN2531568 Y CN 2531568Y
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- motor
- flame
- reluctance motor
- mine
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Abstract
The utility model discloses a mine-used flame-proof type switched reluctance motor, comprising three parts of the mine-used flame-proof type switched reluctance motor, a motor controller of a control motor and a flame-proof enclosure inside which the motor controller is arranged. The motor of the utility model is flame-proof, and stator and rotor are doubly salient 12/8 teeth structure, and the stator teeth are provided with concentrated winding, and the rotor is provided without the winding, a carbon brush and a permanent magnet, which has little maintenance; and starting current of the system is small and starting torque is strong, and starting frequency of each hour is unlimited, therefore the mine-used flame-proof type switched reluctance motor can be continuously started up and braked without break, and the system has high power factor and efficiency in the whole speed range, which has good performance of control and can run in four quadrants, realizing regenerative braking.
Description
Technical field: the utility model relates to motor, relates in particular to the motor that is applicable to that the mining industry industry is used.
Technical background: governing system commonly used has Direct Current Governor System and Alternating Current Governor System under the coal mine at present.Speed adjustable DC motor good speed adjustment features, but electric machine structure complexity, the cost height is again that brush configuration is arranged, and carbon brush and commutator easily produce cremate, and commutator is easy to wear, distortion, failure rate height, and maintenance workload is big, the maintenance cost height.Alternating Current Governor System, maintenance is few, and performance is higher, and non-carbonate and commutator is simple in structure on its motor, reliable operation, but its starting current is big, and starting torque is little, and regenerative braking control is complicated.Domestic existing switched reluctance motor only is applied to the not explosion-proof occasion in ground, is not adapted at the switched reluctance motor that moves in high coal dust under the coal mine, inflammable, the explosive bad working environments environment.
Summary of the invention: the purpose of this utility model provides a kind of flame-proof mine switched reluctance motor, and rotor of the present utility model does not have winding, the non-carbonate permanent magnet that also do not add, and maintenance is little; System's starting current is little, and starting torque is big, and per hour number of starts is unrestricted, can do continual continuous starting braking work, system is all very high at whole speed adjustable range internal power factor and efficient, and the regulation and control performance is good, can four quadrant running, can realize regenerative braking.
The purpose of this utility model is achieved in that
Flameproof enclosure three parts that the utility model is installed electric machine controller by the electric machine controller and being used to of flame-proof mine switched reluctance motor, control motor are formed;
Motor in the utility model is a flame-proof type, and its rotor is the biconvex utmost point 12/8 toothing.Concentrated winding is arranged on the stator tooth, and the winding of per four teeth is connected, and constitutes three groups of windings.When certain phase winding energising, the electromagnetic torque that adjacent rotor tooth and this phase winding axis are coincided will be produced.Order then can make rotor rotate continuously to each phase winding energising.Change the energising order, can change motor and turn to.Control the size and the break-make moment of this electric current, can change torque, change rotating speed, can also realize running under braking.
Electric machine controller is made up of starting and given circuit, pulse-width modulation circuit, energising logical circuit and reference integrator, speed regulator, current regulator etc.Be to regulate output signal continuously according to peripheral operation control requirement and motor practical operation situation, to change the energising of motor by drive circuit, make the service requirement of electrical motors to regulation, as turn to, torque, rotating speed is electronic with braking etc., and makes motor be in optimum Working.
Flameproof enclosure satisfies machinery and electric blocking requirement; Isolating switch, fuse, anti-condensation device are housed in the switch; And be used for jamproof turnover line reactor; Designed the water-cooled cavity that is used for the cooling controller power component.
At the rear portion of motor, high-performance infrared electro member sensor device is housed, and the protection of dust seal cover is arranged.
Description of drawings:
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is electric machine structure figure of the present utility model;
Fig. 3 is the power circuit schematic diagram of the utility model middle controller;
Fig. 4 is the control circuit logic diagram of the utility model middle controller.
Fig. 5 is a flameproof enclosure cutaway view in the utility model;
Fig. 6 is an electric machine structure profile in the utility model;
As shown in the figure: mine flame-proof type switch reluctance motor by motor 1, electric machine controller 3, Flameproof enclosure three parts that are used for the mounted motor controller form;
Reluctance motor 1 is rotor 5 double-salient-poles 12/8 toothings, has concentrated on stator 4 teeth Winding, the winding of per four teeth is connected, and consists of A, B, three groups of windings of C, when certain phase winding During energising, turn to producing the electromagnetism that adjacent rotor tooth and this phase winding axis are coincided Square, order then can make rotor 5 rotate continuously to each phase winding energising (such as A-B-C-A). Change the energising order, can change motor and turn to. Control size and the break-make moment of this electric current, Can change torque, change rotating speed, can also realize running under braking.
Instantaneous position and rotating speed in order to detect motor rotor are equipped with sensing at the motor rear portion Device 2. This sensor 2 adopts high-performance infrared electro element. Its antijamming capability is strong, and is heat-resisting Performance is good, and the life-span is long, and the dustproof sealing cover protection is arranged.
In the power circuit of electric machine controller 3, three-phase alternating-current supply is converted to dc source through diode rectifier bridge V, six IGBT power switch and fly-wheel diode form the three-phase half bridge inverter circuit, respectively to motor three phase windings power supplies, when a phase power switch (such as TA、T′
A) During conducting, switch on to motor winding (A group) through terminal (A, A '); Work as power switch During shutoff, this winding is by fly-wheel diode (DA、D′
A) to capacitor C afterflow and feedback energy Amount, and make electric current be down to rapidly zero. Here power switch is in series with the motor winding, avoids Bridge inverter main circuit (such as frequency converter) danger of upper and lower bridge arm element shoot through easily takes place, So functional reliability height, holding circuit also can be simplified. All power components are installed on the heat sink, Heat sink is fixed on the water-cooled face of explosion-proof chamber, compact conformation, good heat dissipation effect.
The effect of control circuit is to require and the motor practical operation situation according to peripheral operation control The regulation output signal to change the energising of motor by drive circuit, makes it to reach rule continuously Fixed service requirement, as turn to, torque, rotating speed is electronic with braking etc., and makes it to be in the best Duty. Control circuit forms anti-interference energy by a single-chip microcomputer and numeral, analog circuit Power is strong, and dynamic response is fast.
By the control circuit logic diagram as seen, its governing system belongs to the speed and current double closed loop system, Regulate the voltage and current that is added on the motor winding by pulse width modulation circuit, realize transferring The purpose of speed and speed stabilizing. Change the energising phase sequence by logic circuit and change turning to of motor, and By changing the electronic and braking duty of commutation Angulation changes motor. The current limit circuit Then improve the stationarity that motor rotates, and realized electric machine controller 3 and motor 1 Trouble free service. In addition, control circuit has also been realized kinds of protect and self-diagnostic function. Because single The alterability of sheet machine program can also more easily satisfy the user at aspects such as motor performances Various specific (special) requirements.
The operation display circuit is in order to accepting manually or the electric operation signal, such as starting/stopping, turn to, Tach signal etc., and with operational circumstances and motor practical operation situation and failure condition with backlight Liquid crystal display shows.
Be used to install the flameproof enclosure 9 satisfied machinery and the electric blocking requirements of electric machine controller; Isolating switch 8, fuse, anti-condensation device are housed in the flameproof enclosure 9 and are used for jamproof turnover line reactor 7; Designed the water-cooled cavity 6 that is used for the cooling controller power component; Be equipped with on the flameproof enclosure main tank door and be used for GPF (General Protection False (due protection beyond the controller) and controller protection; Inlet wire current table three display window and various action button.And designed intrinsic safety guide loop for the remote operation button.
Embodiment:
1, the application on the hillock hoisting gear
Zhang Cun ore deposit hillock hoisting gear was finished the flame-proof mine switched reluctance motor and was replaced the transformation of former asynchronous unit as main dragging system in October, 2000, had realized improving the purpose of hoisting gear performance.Mining reluctance motor rated power 110KW, rated voltage 660VAC, starting current is less than 30A, speed adjustable range 50-2000rpm, corresponding speed of a motor vehicle 0-2.5 meter per second, point running speed degree is 250rpm (non-adjustable), adopts PLC control and Chinese liquid crystal display, realized that skip position shows in good time and every day accumulative total freight volume statistics.
Compare with original system, the reluctance motor starting has steadily reduced the impact to electrical network, and speed governing is easy, saves energy; System automation degree height, safe and reliable, personnel selection is few, and maintenance is little, has reduced the accessory consumption costs; Adopt crawl speed to shorten the time of changing boom hoist cable.
2, the application on coal-winning machine
In December, 2000, Chang Cun colliery Britain Anderson EL-100 coal-winning machine was finished the transformation that the flame-proof mine switched reluctance motor replaces former coal-winning machine dc traction system, replace two direct current machines of original Britain CT company as traction electric machine with two 37KW flame-proof mine reluctance motors, and former 1140/460V transformer removed, the traction electric machine power supply changes 1140VAC into by original 460VAC, reached simplified system, reduced the purpose of maintenance cost, with getting in touch of original electrical system by newly-increased PLC realization.The parameter of mining SRD is:
Rated power: 2 * 37KW;
Rated voltage: 1140V;
Rated current: 25A;
Starting current:＜10A;
Speed adjustable range: 80-2600rpm, corresponding speed of a motor vehicle 0.4-12.88 rice/minute;
Power-balance: two power of motor Balance Control are in 10%;
Mode of traction: transmitting set, terminal station operation, manual operation;
Mechanical property: permanent torque during 80-1300rpm, permanent power during 1300-2600rpm;
Tractive effort: 200-400KN (the corresponding 6.44m/min of 400KN, the corresponding 12.88.m/min of 200KN);
3, the application on main belt feeder
Chang Cun ore deposit SO master's belt conveyer was finished the flame-proof mine switched reluctance motor and was replaced the transformation of former asynchronous unit as main dragging system March calendar year 2001, realized the purpose of belt feeder soft start and speed-raising, and increased belt feeder crawl operational mode (0.7m/s), shortened the main belt tape swapping time.The major parameter of the mining SRD of main belt feeder is:
Rated power: 2 * 132KW;
Rated voltage: 660VAC;
The range of speeds: 50-2000rpm;
Power-balance: two power of motor Balance Control are in 10%.
Good effect:
1, mine flame-proof type switch reluctance motor automaticity height is safe and reliable, and employment is few, Maintenance is little, has reduced the accessory consumption costs, has reduced the mechanical shock of equipment, has prolonged machine The service life of tool equipment.
2, the reluctance motor starting has steadily reduced the impact to electrical network, and speed governing is easy, saves electricity Energy.
3, mine flame-proof type switch reluctance motor substitutes the asynchronous unit of down-hole master's belt feeder, realizes The purpose of belt soft start and speed-raising, the belt feeder crawl method of operation of increase has shortened the master The belt feeder tape swapping time, reduced labor strength, improved productivity ratio.
Mine flame-proof type switch reluctance motor has Alternating Current Governor System and direct current under coal mine The advantage that governing system is incomparable, especially working power expands to 100 from 220-380VAC-3300VAC, power bracket expands to 4-400KW from 0.75-55KW, is particularly suitable for Move under high coal dust under the coal mine, inflammable, the explosive bad working environments. Its develop is used, To bring dramatic change one time to electromechanical equipment traction and driving under the coal mine.
Claims (1)
1, a kind of flame-proof mine switched reluctance motor, three parts such as flameproof enclosure of electric machine controller are installed by the electric machine controller and being used to of flame-proof mine switched reluctance motor, control motor to be formed, it is characterized in that: the rotor of motor is the biconvex utmost point 12/8 toothing, concentrated winding is arranged on the stator tooth, the winding of per four teeth is connected, and constitutes a phase winding; Electric machine controller is made up of starting and given circuit, pulse-width modulation circuit, energising logical circuit and reference integrator, speed regulator, current regulator etc.; Electric machine controller is positioned at flameproof enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01273689U CN2531568Y (en) | 2001-12-07 | 2001-12-07 | Mine flame-proof type switch reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01273689U CN2531568Y (en) | 2001-12-07 | 2001-12-07 | Mine flame-proof type switch reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2531568Y true CN2531568Y (en) | 2003-01-15 |
Family
ID=33678564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01273689U Expired - Fee Related CN2531568Y (en) | 2001-12-07 | 2001-12-07 | Mine flame-proof type switch reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2531568Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611369A (en) * | 2012-03-19 | 2012-07-25 | 淄博安培电气有限公司 | Speed-regulating system for switched reluctance motor specially used for electric vehicle |
| CN105743315A (en) * | 2016-03-31 | 2016-07-06 | 湘潭市电机车厂有限公司 | Novel switch reluctance motor for mine narrow-gauge locomotive |
-
2001
- 2001-12-07 CN CN01273689U patent/CN2531568Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611369A (en) * | 2012-03-19 | 2012-07-25 | 淄博安培电气有限公司 | Speed-regulating system for switched reluctance motor specially used for electric vehicle |
| CN105743315A (en) * | 2016-03-31 | 2016-07-06 | 湘潭市电机车厂有限公司 | Novel switch reluctance motor for mine narrow-gauge locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: LUAN MINING INDUSTRY(GROUP)CO., LTD. TO: SANXI LUAN MINING INDUSTRY(GROUP)CO., LTD. |
|
| CU01 | Correction of utility model patent |
Correction item: Patentee Correct: Shanxi Lu'an Mining Industry (Group) Co., Ltd. False: Lu'an Mining (Group) Co., Ltd. Number: 3 Page: The title page Volume: 19 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Patentee Correct: Shanxi Lu'an Mining Industry (Group) Co., Ltd. False: Lu'an Mining (Group) Co., Ltd. Number: 3 Volume: 19 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: LUAN MINING INDUSTRY(GROUP)CO., LTD. TO: SANXI LUAN MINING INDUSTRY(GROUP)CO., LTD. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |