CN102110974A - Explosion-proof type temperature intelligent control method for mining motor - Google Patents
Explosion-proof type temperature intelligent control method for mining motor Download PDFInfo
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- CN102110974A CN102110974A CN2010102037360A CN201010203736A CN102110974A CN 102110974 A CN102110974 A CN 102110974A CN 2010102037360 A CN2010102037360 A CN 2010102037360A CN 201010203736 A CN201010203736 A CN 201010203736A CN 102110974 A CN102110974 A CN 102110974A
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Abstract
The invention discloses an explosion-proof type temperature intelligent control method for a mining motor, which is used in a mining motor with a temperature measuring element and an electric heater pre-buried in the stator winding of the mining motor. The method comprises an infrared receiving part, an environmental temperature acquisition part, a reserve communication port part, a current control part, a display part, a clock chip part, a central control part, a PWM (pulse-width modulation) modulation and control part, a setting part, an information acquisition and conversion part, a state acquisition part and a leakage locking part. The method can be used in the mining motor in a narrow space and harsh environment, and the temperature of the motor can be controlled to change through regulating the current of a heating element, so that the motor can automatically cools down to the environmental temperature according to pre-arranged procedures, further the relative motion of constitute materials of the motor in case of temperature sudden change caused by different dilatation coefficients of the materials is avoided, the temperature rise rate and fall rate of the motor during closed-down stage can be controlled within a reasonable range, the normal use of the motor can be effectively guaranteed, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of mining motor explosion-proof type temperature intelligent control method, be used for the mining motor that stator winding is embedded with temperature element and electric heater.
Background technology
Mining motor (stator and the rotor that comprise motor) is a uneven plastid, it is made up of different materials such as winding copper and aluminium, silicon steel, insulating cement, insulating barrier and fillers, because its temperature characterisitic, the coefficient of expansion have nothing in common with each other, temperature rise sharply or rapid drawdown very big to motor influence, particularly in the colliery or that motor places are installed is narrow other tunnels, environment of living in is abominable, is subjected to stone again frequently and pounds and beat etc., and motor somehow or other sometimes burns.For the life-span of protecting and prolong motor should be taked intervening measure to the temperature shock of motor, therefore generally all be embedded with temperature element and electric heater at mining motor stator.
No matter be domestic and international well-known electrical machinery plant at present, generally all in motor, be embedded with temperature element and electric heater motor complete machine dispatches from the factory, finish but the temperature control equipment of motor then designed by match appliance factory.What is more; match appliance factory simply is considered as not essential to electric heater; ignore; neither design in advance; more do not use in the reality; electric heater is performed practically no function,, caused the control of motor temperature between down period and the blank of protection because motor factory and match appliance factory space or disconnection occur to the management of motor.Now, the match appliance factory that has has designed and the supporting temperature control equipment of large and middle size motor, but it is applicable to common occasion, and inapplicable in the place that explosion hazard is arranged.Mining motor is poor because of environment for use, will make motor when starting and stopping, produce breathing phenomenon, make extraneous dust, moisture etc. enter motor internal, so just be easy to cause maintenance intervals to shorten, increase maintenance frequency and cost, therefore the easier motor that in use burns presses for a kind of mining motor explosion-proof type temperature-controlled process of invention.
Summary of the invention
Purpose of the present invention: be exactly to realize temperature intelligent control and temperature protection by the Atmeg64 chip by stop moment at mining motor; make the slowly balanced variation of the temperature of motor between down period; prevent that motor from forming each storeroom because of coefficient of expansion difference; relatively moving of each storeroom of motor that when temperature generation cataclysm, causes; reduce internal loss, thus protect effectively motor normal use, prolong motor useful life.
Technical solution of the present invention is: by infrared receiving unit, temperature collection part, reserve that communication port part, Current Control part, display part, clock chip part, central control section, PWM are modulated control section, part is set, information gathering transform portion, state acquisition partly, earth leakage search/lockout partly forms.
Infrared receiving unit is RPM638, and output connects 25 pins of central control section; Temperature collection is partly exported 26 pins that connect central control section; Reserve communication port and partly export 27,28 pin that connect central control section; The Current Control part is made up of integrated chip U55 and resistance R 52, R53, for integrated chip U55,6 pins of resistance R 52 1 termination integrated chips, link to each other with the upper end of silicon controlled behind 1 pin of another termination binding post J52,4 pins of integrated chip U55 are by the normally closed point of earth leakage search/lockout part repeat circuit K4, connect 2 pins of binding post J5,12 pins of its input termination PWM modulation control section; The 7-14 pin of display part is connected with the 44-51 pin of central control section; 5,6,7 pins of clock chip part output are connected with 7,8,9 pins of central controller part; Central authorities' control section be logic determines with infrared acceptance part, temperature collection part, reserve communication port part, display part, clock chip partly, PWM modulates control section, part is set, information gathering transform portion, state acquisition partly are connected; 3,4,7,8,13,14,17, the 18 pins input of PWM modulation control section connects the 44-51 pin of central control section, and output connects the Current Control part; Part is set to be made up of button S1, S2, S3, S4, S5, S6 and resistor chain R21, one end ground connection, other end output is connected with the 14-19 of central control section, the information gathering transform portion is MBW-1240, its input connects the temperature element of motor, and output connects the 54-61 pin connection mode/number conversion of central control section 7; The state acquisition part is by R11, R10 resistor chain, and optocoupler O1, binding post J12, LED 1, LED2, LED3, LED4 form, and input connects electric machine controller, and output links to each other with the 35-38 pin of central control section; Earth leakage search/lockout is partly imported by switch S 4 and is connected live wire, and output connects current control division and divides 2 pins of binding post J52 and 4 pins of integrated chip U55.
Described earth leakage search/lockout is partly imported an end and is connected live wire by switch S 4, other end ground connection, switch S 4 outputs are by resistance R 93, diode D7, resistance R 92 connects 24 volts of power supplys, 1 of integrated chip U14,2 pins connect by resistance R 98, R97, capacitor C 95 connects 7 pins, 3,13, the 14 pins ground connection that links together, 4 pins connect 5 volts of power supplys, 5 pins are by resistance R 94 ground connection, 6 pins are by resistance R 95 ground connection, and connect 7 pins by resistance R 96,8 pins connect 9 pins by resistance R 101, on the tie point of 9 pins by resistance R 100 connecting resistance R99 and R102, resistance R 102 other end ground connection, resistance R 99 other ends are connected resistance R 98, on the tie point of R97,10 pin ground connection, 11 pins connect 24 volts of power supplys, 12 pins connect on diode D7 and resistance R 92 tie points by resistance R 91, one termination, 12 pins of capacitor C 91, other end ground connection, 24 volts of power supplys of capacitor C 92 1 terminations, capacitor C 94 1 terminating resistor R97, R98, on the R99 contact, the equal ground connection of the other end, the dividing potential drop of 8 pins by variable resistor RW92 and resistance R 103 connects 1 pin of integrated chip U17, voltage-stabiliser tube D8 through R104, capacitor C 93 is connected in parallel on resistance R 103 two ends; 2 pins of integrated chip U17 connect 24 volts of power supplys, resistance R 107 and 24 volts of power supplys of variable resistor RW94 series connection, the two divides crimping 4 pins, resistance R 105 and 24 volts of power supplys of variable resistor RW93 series connection, divide and be crimped on 8 pins, the output of 4 pins is through the base stage of resistance R 116 with the branch crimping triode Q4 of R117, the Q4 grounded emitter, collector electrode connects 5 volts of power supplys by auxiliary relay coil K4, diode D12 is connected in parallel on coil K4 two ends, 2 pins of the normally closed point one termination current control division minute binding post J52 of K4,4 pins of a termination integrated chip U55.
Advantage of the present invention is: adopt mining motor explosion-proof type temperature intelligent control method; can be to being in the mining motor local narrow, that environment is abominable; by regulating the variation of heating element, make the temperature after motor is shut down be cooled to ambient temperature automatically by pre-set programs by the size control motor temperature of electric current.Thereby prevented that motor from forming each storeroom because of coefficient of expansion difference; relatively moving of each storeroom of motor that when temperature generation cataclysm, causes; make motor be controlled at zone of reasonableness at the temperature rising and the rate of descent in the stage of shutdown; the assurance motor safety uses, protect effectively motor normal use, prolong motor useful life.
Description of drawings
Fig. 1 is a circuit diagram of the present invention
1, infrared receiving unit mainly is to accept the control signal that remote controller sends
2, temperature collection is partly gathered the motor ambient temperature
3, reserve the communication port that communication port partly stays for future and upper machine communication
4, Current Control is partly by changing size of current to adjust temperature
5, the display part shows electric machine operation state and temperature
6, clock chip partly provides reference clock
7, central control section logic determines
8, PWM modulation control section is modulated the bidirectional triode thyristor trigger pulse width
9, part being set comes device is carried out necessary setting by button
10, information gathering transform portion mainly is converted into the device available signal to the temperature signal collection of motor
11, state acquisition partly detects the operating state of motor
12, at first load-side is carried out detection of electrical leakage before the earth leakage search/lockout part system input, if earth leakage search/lockout otherwise allow system start-up
Embodiment
Now in conjunction with the accompanying drawings the embodiment of the invention is described as follows:
By shown in Figure 1, the present invention by: infrared receiving unit 1, temperature collection part 2, reserve communication port part 3, Current Control part 4, display part 5, clock chip part 6, central control section 7, PWM modulation control section 8, part 9 be set, information gathering transform portion 10, state acquisition part 11, earth leakage search/lockout part 12 form.
Infrared receiving unit 1 is RPM638, and it mainly receives the control signal that Infrared remote controller is sent, and output connects 25 pins of central control section 7; Temperature collection part 2 is to gather the motor ambient temperature, and output connects 26 pins of central control section 7; Reserve the communication port that communication port part 3 is stayed for future and upper machine communication, output connects 27,28 pin of central control section 7; Current Control part 4 is made up of integrated chip U55 and resistance R 52, R53, for integrated chip U55,6 pins of resistance R 52 1 termination integrated chips, link to each other with the silicon controlled upper end behind 1 pin of another termination binding post J52,4 pins of integrated chip U55 are by the normally closed point of earth leakage search/lockout part 12 repeat circuit K4,2 pin that meet binding post J52 extremely link to each other with SCR control, 12 pins of its input termination PWM modulating part 8; 7,8,9,10,11,12,13,14 pins of display part 5 are connected with 44,45,46,47,48,49,50,51 pins of central control section 7, show the state of a control of motor; Output 5,6,7 pins of clock chip part 6 are connected with 7,8,9 pins of central control section 7, for it provides reference clock; Central authorities' control section 7 is that logic determines is sent operation part, it and infraredly accept part 1, temperature collection part 2, reserve communication port part 3, display part 5, clock chip part 6, PWM modulation control section 8, part 9, information gathering transform portion 10, state acquisition part 11 be set connect; Input 3,4,7,8,13,14,17,18 pins of PWM modulation control section 8 connect 44,45,46,47,48,49,50,51 pins of central control section 7, and output connects Current Control part 4; Part 9 is set forms by button S1, S2, S3, S4, S5, S6 and resistor chain R21, an end ground connection, other end output is connected with 14,15,16,17,18,19 pins of central control section 7; Information gathering transform portion 10 is MBW-1240, its input connects the temperature element of motor, and output connects 54,55,56,57,58,59,60,61 pin connection mode/number conversions of central control section 7 by swept resistance R2, R3, R4, R5, R6, R7, R8, R9; State acquisition 11 is by R11, R10 resistor chain, optocoupler 01, binding post J12, LED 1, LED2, LED3, LED4 form, input connects electric machine controller, and output links to each other with 35,36,37,38 pins of central control section 7 by 10,12,14,16 of optocoupler O1; 12 inputs of earth leakage search/lockout part connect live wire by switch S 4, and output connects 2 pins of Current Control part 4 binding post J52 and 4 pins of integrated chip U55.
Earth leakage search/lockout part 12 inputs one end connects live wire by switch S 4, other end ground connection, switch S 4 outputs are by resistance R 93, diode D7, resistance R 92 connects 24 volts of power supplys, 1 of integrated chip U14,2 pins connect by resistance R 98, R97, capacitor C 95 connects 7 pins, 3 of integrated chip U14,13, the 14 pins ground connection that links together, 4 pins connect 5 volts of power supplys, 5 pins are by resistance R 94 ground connection, 6 pins are by resistance R 95 ground connection, and connect 7 pins by resistance R 96,8 pins connect 9 pins by resistance R 101, on the tie point of 9 pins by resistance R 100 connecting resistance R99 and R102, resistance R 102 other end ground connection, resistance R 99 other ends are connected resistance R 98, on the tie point of R97,10 pin ground connection, 11 pins connect 24 volts of power supplys, 12 pins connect on diode D7 and resistance R 92 tie points by resistance R 91, one termination, 12 pins of capacitor C 91, other end ground connection, 24 volts of power supplys of capacitor C 92 1 terminations, capacitor C 94 1 terminating resistor R97, R98, on the R99 contact, the equal ground connection of the other end, integrated chip U14 connects 1 pin of integrated chip U17, voltage-stabiliser tube D8 by the dividing potential drop of 8 pins by variable resistor RW92 and resistance R 103 through resistance R 104, capacitor C 93 is connected in parallel on resistance R 103 two ends; 2 pins of integrated chip U17 connect 24 volts of power supplys, resistance R 107 and 24 volts of power supplys of variable resistor RW94 series connection, the two divides 4 pins of crimping integrated chip U17, resistance R 105 and 24 volts of power supplys of variable resistor RW93 series connection, divide 8 pins that are crimped on integrated chip U17, the output of 4 pins is through the base stage of resistance R 116 with the branch crimping triode Q4 of R117, the Q4 grounded emitter, collector electrode connects 5 volts of power supplys by auxiliary relay coil K4, diode D12 is connected in parallel on coil K4 two ends, 2 pins of the binding post J52 of the normally closed point one termination Current Control part 4 of K4,4 pins of a termination integrated chip U55.
At first be that earth leakage search/lockout part 12 is carried out work when motor is shut down, load-side is carried out detection of electrical leakage, if earth leakage search/lockout otherwise allow system start-up, the normally closed point of relay is connected the silicon controlled control loop.Detect by state acquisition part 11 and to give central control section 7 signals behind the motor silence signal; coming detection signal to gather transform portion 10 by central control section 7 provides numerical value to compare judgement; automatically send command adapted thereto; go to regulate Current Control part 4 by PWM modulation control section 8; at any time regulate the size of current that the motor heating element passes through; make electric machine temperature rise reduce to ambient temperature according to predetermined temperature curve; for reaching accuracy control over temperature; this method is connected with heating element in the motor by the output of Current Control part 4; connect motor inlet wire controller close point by state acquisition part 11; when shutting down, gives by motor the device enabling signal; according to default Automatic Program analysis and judgement, reach the control motor by designing program to ambient temperature.
Claims (2)
1. mining motor explosion-proof type temperature intelligent control method, it is characterized in that: by infrared receiving unit (1), temperature collection part (2), reserve communication port part (3), Current Control part (4), display part (5), clock chip part (6), central control section (7), PWM modulation control section (8), part (9), information gathering transform portion (10) be set, state acquisition part (11), earth leakage search/lockout part (12) form
Infrared receiving unit (1) is RPM638, and output connects 25 pins of central control section (7); Temperature collection part (2) output connects 26 pins of central control section (7); Reserve 27,28 pin that communication port part (3) output connects central control section (7); Current Control part (4) is made up of integrated chip U55 and resistance R 52, R53, for integrated chip U55,6 pins of resistance R 52 1 termination integrated chips, link to each other with the silicon controlled upper end behind 1 pin of another termination binding post J52,4 pins of integrated chip U55 are by the normally closed point of earth leakage search/lockout part (12) repeat circuit K4, connect 2 pins of binding post J52,12 pins of its input termination PWM modulation control section (8); The 7-14 pin of display part (5) is connected with the 44-51 pin of central control section (7); Output 5,6,7 pins of clock chip part (6) are connected with 7,8,9 pins of central control section (7); Central authorities' control sections (7) are logic determines with infrared acceptance part (1), temperature collection part (2), reserve communication port part (3), display part (5), clock chip part (6), PWM modulation control section (8), be provided with part (9), information gathering transform portion (10), state acquisition partly (11) be connected; 3,4,7,8,13,14,17, the 18 pins input of PWM modulation control section (8) connects the 44-51 pin of central control section (7), and output connects Current Control part (4); Part (9) is set forms by button S1, S2, S3, S4, S5, S6 and resistor chain R21, an end ground connection, other end output is connected with the 14-19 of central control section (7); Information gathering transform portion (10) is MBW-1240, and its input connects the temperature element of motor, and output connects the 54-61 pin connection mode/number conversion of central control section (7); State acquisition (11) is by R11, R10 resistor chain, and optocoupler O1, binding post J12, LED 1, LED2, LED3, LED4 form, and input connects electric machine controller, and output links to each other with the 35-38 pin of central control section (7); Earth leakage search/lockout part (12) input connects live wire by switch S 4, and output connects 2 pins of Current Control part (4) binding post J52 and 4 pins of integrated chip U55.
2. mining motor explosion-proof type temperature intelligent control method according to claim 1, it is characterized in that: earth leakage search/lockout part (12) input one end connects live wire by switch S 4, other end ground connection, switch S 4 outputs are by resistance R 93, diode D7, resistance R 92 connects 24 volts of power supplys, 1 of integrated chip U14,2 pins connect by resistance R 98, R97, capacitor C 95 connects 7 pins, 3,13, the 14 pins ground connection that links together, 4 pins connect 5 volts of power supplys, 5 pins are by resistance R 94 ground connection, 6 pins are by resistance R 95 ground connection, and connect 7 pins by resistance R 96,8 pins connect 9 pins by resistance R 101, on the tie point of 9 pins by resistance R 100 connecting resistance R99 and R102, resistance R 102 other end ground connection, resistance R 99 other ends are connected resistance R 98, on the tie point of R97,10 pin ground connection, 11 pins connect 24 volts of power supplys, 12 pins connect on diode D7 and resistance R 92 tie points by resistance R 91, one termination, 12 pins of capacitor C 91, other end ground connection, 24 volts of power supplys of capacitor C 92 1 terminations, capacitor C 94 1 terminating resistor R97, R98, on the R99 contact, the equal ground connection of the other end, the dividing potential drop of 8 pins by variable resistor RW92 and resistance R 103 connects 1 pin of integrated chip U17, voltage-stabiliser tube D8 through R104, capacitor C 93 is connected in parallel on resistance R 103 two ends; 2 pins of integrated chip U17 connect 24 volts of power supplys, resistance R 107 and 24 volts of power supplys of variable resistor RW94 series connection, the two divides crimping 4 pins, resistance R 105 and 24 volts of power supplys of variable resistor RW93 series connection, divide and be crimped on 8 pins, the output of 4 pins is through the base stage of resistance R 116 with the branch crimping triode Q4 of R117, the Q4 grounded emitter, collector electrode connects 5 volts of power supplys by auxiliary relay coil K4, diode D12 is connected in parallel on coil K4 two ends, 2 pins of normally closed point one termination Current Control part (4) binding post J52 of K4,4 pins of a termination integrated chip U55.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102037360A CN102110974A (en) | 2010-06-17 | 2010-06-17 | Explosion-proof type temperature intelligent control method for mining motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102037360A CN102110974A (en) | 2010-06-17 | 2010-06-17 | Explosion-proof type temperature intelligent control method for mining motor |
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| CN102110974A true CN102110974A (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102037360A Pending CN102110974A (en) | 2010-06-17 | 2010-06-17 | Explosion-proof type temperature intelligent control method for mining motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104238598A (en) * | 2013-06-17 | 2014-12-24 | 杨庆娥 | Motor heat transferring balancing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296789A (en) * | 1990-05-18 | 1994-03-22 | Zexel Corporation | Apparatus for controlling brushless motors in response to switching transistor temperature |
| CN2912065Y (en) * | 2006-06-19 | 2007-06-13 | 南京南自电力仪表有限公司 | Analogue capacity outputting device of motor protection device |
| CN201341016Y (en) * | 2008-11-08 | 2009-11-04 | 邯郸市星瑞自控设备有限公司 | Energy-saving temperature control protection device of large or medium motor |
-
2010
- 2010-06-17 CN CN2010102037360A patent/CN102110974A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296789A (en) * | 1990-05-18 | 1994-03-22 | Zexel Corporation | Apparatus for controlling brushless motors in response to switching transistor temperature |
| CN2912065Y (en) * | 2006-06-19 | 2007-06-13 | 南京南自电力仪表有限公司 | Analogue capacity outputting device of motor protection device |
| CN201341016Y (en) * | 2008-11-08 | 2009-11-04 | 邯郸市星瑞自控设备有限公司 | Energy-saving temperature control protection device of large or medium motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104238598A (en) * | 2013-06-17 | 2014-12-24 | 杨庆娥 | Motor heat transferring balancing method |
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Application publication date: 20110629 |