CN101254480A - Power balance regulating method of double motor drive vertical shaft type impact crusher and device - Google Patents
Power balance regulating method of double motor drive vertical shaft type impact crusher and device Download PDFInfo
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- CN101254480A CN101254480A CNA200810068709XA CN200810068709A CN101254480A CN 101254480 A CN101254480 A CN 101254480A CN A200810068709X A CNA200810068709X A CN A200810068709XA CN 200810068709 A CN200810068709 A CN 200810068709A CN 101254480 A CN101254480 A CN 101254480A
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Abstract
The invention discloses a method and a device for power balance adjustment of a double-motor driven spindle-type impact crusher, belongs to the field of crushers, and aims at providing a double-motor driven load power balance adjustment method and device. The method includes the following steps: data acquisition, data processing and adjustment control, wherein the data acquisition step includes the data collection of current of two motors and tension of a driving belt; the data processing step includes the calculation of power difference of the two motors and errors of driving belt tension; and the adjustment control step includes the rotation speed adjustment of the motors and a stepping motor. The device comprises a crusher, a pulley and motors, wherein the master motor (10) is connected with the commercial power through a first current sensor (11), the secondary motor (4) is connected with the commercial power through a second current sensor (12) and a frequency converter (2), and the frequency converter (2) is electrically connected with the two current sensors and a power balance controller (3). The inventive method and the device are widely used in mining industry, water conservancy industry and cement industry.
Description
Technical field:
The present invention relates to a kind of power balance regulating method of Dual-motors Driving load, relate in particular to a kind of power balance regulating method of double motor drive vertical shaft type impact crusher; The invention still further relates to a kind of device of realizing this method.
Background technology:
Vertical shaft type impact crusher is a kind of novel disintegrating apparatus in the crushing mechanism, and it has characteristics such as energy consumption is low, wear-out part is few, in light weight; In recent years, along with " many broken few mills " the theoretical development of broken mill, vertical shaft type impact crusher has obtained application more and more widely in industries such as mining, water conservancy and cement.The drive form of vertical shaft type impact crusher mainly contains two kinds of single motor-driven and Dual-motors Driving, adopts belt transmission between motor and the load.At present, the vertical shaft type impact crusher of Dual-motors Driving does not generally have the installation power balance sysmte, mainly has following problem:
1. power imbalance, even if duplicate two motors of model, because on making, its mechanical property is often also incomplete same.The direct result that the power imbalance is caused be exactly wherein motor be easy to generate overheated, and another underloading, power are not fully played, thereby cause the plant equipment inefficiency, motor is short service life, also can cause burn-down of electric motor when serious.
2. two belt tension degree varies cause and can strengthen the uneven degree of the power that has existed between two motors.
At present, in the vertical shaft type impact crusher production process of Dual-motors Driving, mainly take the method for motor coupling to solve the problems referred to above, promptly make two motors have approaching rated speed as far as possible with power; But this method not only takes a lot of work, time-consuming, effect is also undesirable; But also there are defectives such as motor interchangeability difference.
Summary of the invention:
At the above-mentioned defective that exists in the prior art, the present invention aims to provide a kind of power balance regulating method of double motor drive vertical shaft type impact crusher, and it can realize that two motors that drive load jointly can exert oneself according to rated power equal proportion separately; Another object of the present invention provides a kind of device of realizing this method.
To achieve these goals, method of the present invention by the following technical solutions: it comprises that data acquisition, data are handled, controlled quentity controlled variable is exported and control; Concrete grammar is as follows:
1) data acquisition is gathered to main motor with from the electric current of motor spindle one side, meanwhile the tensile force of two motor driving belt slack sides is gathered;
2) data are handled, and go out the deviation ratio of two powers of motor respectively as the approximation calculation of two motor actual powers with above-mentioned electric current, meanwhile calculate the error of two motor driving belt tensile forces;
3) regulate control, according to power-balance condition: K=N
1/ N
2=N
1e/ N
2e, regulate from rotating speed of motor by frequency converter, make its mechanical property of following main motor keep two power of motor balances; Meanwhile, according to equalization of strain condition: F
1=F
2, regulate the tensile force of two driving belts, reach unanimity up to the tensile force of two driving belts.
In order to realize said method, device provided by the invention by the following technical solutions: it comprises disintegrating machine, be installed in big belt pulley on this disintegrating machine, drive two motors that big belt pulley rotates jointly by small belt pulley and driving belt respectively; Main motor is electrically connected with the city by first current sensor, is electrically connected with the city by second current sensor, frequency converter from motor, and frequency converter and above-mentioned two current sensors are electrically connected with the power-balance controller respectively; The slack side of two driving belts respectively be provided with a cover by stepper motor, the adjusting device that is connected with this motor, be arranged on measurement mechanism on the stepper motor, governing mechanism of tension that the regulating wheel that is connected with adjusting device by spring constitutes, two overlap between the described governing mechanism of tension and are electrically connected by tension controller.
Front end at first current sensor is provided with soft initiator.
Compared with the prior art, the present invention has been owing to adopted technique scheme, guaranteed effectively that therefore two motors can exert oneself according to rated power equal proportion separately substantially, thereby realizes the power-balance of two motors; Its advantage is specially:
1. improve the power utilization and the production efficiency of equipment, reduced the energy consumption and the production cost of unit product;
2. can adjust automatically with the variation of device parameter in good time, improve operation stability of equipment;
3. prolonged the service life of motor;
4. because the rated speed of motor is not had specific (special) requirements, therefore when certain motor breaks down after, only need similar motor of replacing, mate, thereby improved the interchangeability of motor, reduced the maintenance of equipment time and no longer need to carry out motor.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that A among Fig. 1 is to view;
Fig. 3 is the structured flowchart of power-balance controller of the present invention.
Among the figure: soft initiator 1 frequency converter 2 power-balance controllers 3 are from motor 4 small belt pulleys 5 regulating wheels 6 big belt pulleys 7 disintegrating machines 8 driving belts 9 main motor 10 first current sensors 11 second current sensors 12 springs 13 measurement mechanisms 14 adjusting devices 15 stepper motors 16 tension controllers 17 comparators 18 differentiators 19 fuzzy controllers 20 PID controllers 21
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing and specific embodiment:
In Fig. 1～3, method provided by the present invention comprises that data acquisition, data are handled, controlled quentity controlled variable is exported and control; Concrete grammar is as follows:
1) with main motor 10 and civil power in succession, will be electrically connected with the city by frequency converter 2 from motor 4, main motor 10 by civil power directly power, from motor 4 by frequency converter 2 power supplies; Slack side at two motor driving belts 9 respectively is provided with the governing mechanism of tension that a cover includes measurement mechanism 14, adjusting device 15, stepper motor 16.
2) data acquisition utilizes the electric current I that is installed in main motor 10 and gathers two motors from first current sensor 11 of motor 4 spindles one side
1, I
2Meanwhile, utilize two measurement mechanisms 14 to gather the tensile force F of two motor driving belt 9 slack sides
1, F
2
3) data are handled, and comparator 18 calculates the current error I between two motors
Δ=I
1-I
2And two current error rate of change d/dt between the motor, fuzzy controller 20 calculates the deviation ratio N of two powers of motor approx according to current error and current error rate of change
1/ N
1e, N
2/ N
2eMeanwhile, tension controller 17 calculates the error F of two motor driving belt 9 tensile forces
Δ=F
1-F
2
4) regulate control, PID controller 21 is according to the deviation ratio N of two powers of motor
1/ N
1e, N
2/ N
2eAnd according to power-balance condition: K=N
1/ N
2=N
1e/ N
2eCalculate controlled quentity controlled variable, to frequency converter 2 these controlled quentity controlled variables of output, frequency converter 2 is regulated from the rotating speed of motor 4 and is made its mechanical property of following main motor 10 keep two motors to move by the power-balance condition then; Meanwhile, tension controller 17 is according to the error F of tensile force
ΔAnd according to equalization of strain condition: F
1=F
2Calculate controlled quentity controlled variable, in two stepper motors 16 that are located at two driving belts, 9 slack sides, one side any one sends a step instruction then, and the tensile force that this stepper motor is regulated driving belt 9 by adjusting device 15 reaches unanimity up to the tensile force of two driving belts 9.
Wherein: N
1Be the actual power of main motor, N
1eBe the rated power of main motor;
N
2Be the actual power from motor, N
2eBe rated power from motor;
K is the power-balance coefficient.
Apparatus structure provided by the present invention is shown in Fig. 1～3: main motor 10 and rotate by a small belt pulley 5 and driving belt 9 common big belt pulleys 7 that are installed on the disintegrating machine 8 that drive respectively from motor 4; Main motor 10 directly is connected with civil power by first current sensor 11, from motor 4 by 2 power supplies of the frequency converter that is electrically connected with the city, frequency converter 2 and from being connected to second current sensor 12 between the motor 4; Frequency converter 2 and above-mentioned two current sensors are electrically connected with power-balance controller 3 respectively.For fear of producing rush of current when the electric motor starting, be provided with soft initiator 1 at the front end of first current sensor 11.Power-balance controller 3 is made of fuzzy controller 20, PID controller 21, comparator 18 and differentiator 19.Because the tensioning degree of belt 9 can change after work a period of time, cause influence because of tensioning degree is inconsistent in order to eliminate two driving belts 9, a cover governing mechanism of tension also respectively is set at the slack side of two driving belts 9 to two power of motor balances; This mechanism by adjusting device 15, drive this adjusting device stepper motor 16, be arranged on the measurement mechanism 14 on this stepper motor, the regulating wheel 6 that is connected with adjusting device 15 by spring 13 constitutes, be electrically connected by tension controller 17 between two stepper motors 16 and between two measurement mechanisms 14.
In the above-described embodiments, main motor 10 and be the squirrel-cage alternating current generator from motor 4, disintegrating machine 8 is a vertical shaft type impact crusher, measurement mechanism 14 is a pressure sensor.
Operation principle: two current sensors will send power-balance controller 3 to as the power approximation of two motors from main motor 10 with from the electric current of motor 4 stators one side inspection respectively, and this balance controller is with power-balance COEFFICIENT K=N
1/ N
2=N
1e/ N
2eFor the power-balance condition compares; When deviation occurring, change from the mechanical property of motor 4 by the revolutional slip of continuous adjusting from motor 4, make its mechanical property of following main motor 10 operation, thereby realize power-balance.
Regulating wheel 6 provides more stable tensile force by spring 13, two measurement mechanisms 14 in time send detected pressure signal to tension controller 17, tension controller 17 compares the back with described two pressure signals and sends a step instruction to one of them stepper motor 16, stepper motor 16 actions are also passed through adjusting device 15 with the displacement of angular displacement conversion linear, thereby reach the purpose of adjusting master and slave motor belt tensioning degree unanimity by the decrement that changes spring 13.
Claims (3)
1. the power balance regulating method of a double motor drive vertical shaft type impact crusher comprises that data acquisition, data are handled, adjusting control; It is characterized in that concrete grammar is as follows:
1) data acquisition is gathered to main motor with from the electric current of motor spindle one side, meanwhile the tensile force of two motor driving belt slack sides is gathered;
2) data are handled, and go out the deviation ratio of two powers of motor respectively as the approximation calculation of two motor actual powers with above-mentioned electric current, meanwhile calculate the error of two motor driving belt tensile forces;
3) regulate control, according to power-balance condition: K=N
1/ N
2=N
1e/ N
2e, regulate from rotating speed of motor by frequency converter, make its mechanical property of following main motor keep two power of motor balances; Meanwhile, according to equalization of strain condition: F
1=F
2, regulate the tensile force of two driving belts, reach unanimity up to the tensile force of two driving belts.
2. device of realizing the power balance regulating method of the described double motor drive vertical shaft type impact crusher of claim 1 comprises disintegrating machine, is installed in big belt pulley on this disintegrating machine, drives two motors that big belt pulley rotates jointly by small belt pulley and driving belt respectively; It is characterized in that: main motor (10) is electrically connected with the city by first current sensor (11), be electrically connected with the city by second current sensor (12), frequency converter (2) from motor (4), frequency converter (2) and above-mentioned two current sensors are electrically connected with power-balance controller (3) respectively; The slack side of two driving belts (9) respectively be provided with a cover by stepper motor (16), the adjusting device (15) that is connected with this motor, be arranged on measurement mechanism (14) on the stepper motor (16), the governing mechanism of tension of regulating wheel (6) formation that is connected with adjusting device (15) by spring (13), two overlap and pass through tension controller (17) electrical connection between the described governing mechanism of tension.
3. device according to claim 2 is characterized in that: the front end at first current sensor (11) is provided with soft initiator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810068709XA CN101254480A (en) | 2008-04-11 | 2008-04-11 | Power balance regulating method of double motor drive vertical shaft type impact crusher and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810068709XA CN101254480A (en) | 2008-04-11 | 2008-04-11 | Power balance regulating method of double motor drive vertical shaft type impact crusher and device |
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|---|---|
| CN101254480A true CN101254480A (en) | 2008-09-03 |
Family
ID=39889785
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|---|---|---|---|
| CNA200810068709XA Pending CN101254480A (en) | 2008-04-11 | 2008-04-11 | Power balance regulating method of double motor drive vertical shaft type impact crusher and device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826830A (en) * | 2010-03-29 | 2010-09-08 | 陕西蒲白三通有限公司 | Four-motor driving power balancing system of belt conveyor and power balancing method |
| CN102710183A (en) * | 2012-06-13 | 2012-10-03 | 苏州汇川技术有限公司 | Crossed coupling synchronous control system and method of multiple motors |
| CN102769417A (en) * | 2012-08-06 | 2012-11-07 | 中联重科物料输送设备有限公司 | Method and device for controlling multi-motor variable-frequency drive of belt conveyor |
| CN103475281A (en) * | 2013-09-02 | 2013-12-25 | 徐州工业职业技术学院 | Dual-motor synchronous control device based on PLC (Programmable Logic Controller) |
| CN103475290A (en) * | 2013-08-15 | 2013-12-25 | 江苏云意电气股份有限公司 | Double-motor parallel load balanced distribution universal voltage regulator |
| CN103762910A (en) * | 2014-01-29 | 2014-04-30 | 南京艾凌节能技术有限公司 | Power balance controlling device and method of multi-motor drive system |
| CN104111669A (en) * | 2013-04-18 | 2014-10-22 | 陈明灯 | Suspension fixed-point displacement stress balance regulation and control device for carried object with variable weight |
| CN110575900A (en) * | 2019-09-06 | 2019-12-17 | 韶关核力重工机械有限公司 | Dual-drive automatic balance control system of intelligent environment-friendly gravel sand making machine |
| CN111355406A (en) * | 2020-04-02 | 2020-06-30 | 苏州三尔电气有限公司 | Variable-frequency transmission system for oil drilling platform |
| CN113172260A (en) * | 2021-04-25 | 2021-07-27 | 何海晶 | From numerically controlled fraise machine of taking belt tensioning structure |
-
2008
- 2008-04-11 CN CNA200810068709XA patent/CN101254480A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826830A (en) * | 2010-03-29 | 2010-09-08 | 陕西蒲白三通有限公司 | Four-motor driving power balancing system of belt conveyor and power balancing method |
| CN102710183A (en) * | 2012-06-13 | 2012-10-03 | 苏州汇川技术有限公司 | Crossed coupling synchronous control system and method of multiple motors |
| CN102710183B (en) * | 2012-06-13 | 2016-01-20 | 苏州汇川技术有限公司 | Many motors cross-couplings synchronous control system and method |
| CN102769417B (en) * | 2012-08-06 | 2014-12-24 | 中联重科物料输送设备有限公司 | Method and device for controlling multi-motor variable-frequency drive of belt conveyor |
| CN102769417A (en) * | 2012-08-06 | 2012-11-07 | 中联重科物料输送设备有限公司 | Method and device for controlling multi-motor variable-frequency drive of belt conveyor |
| CN104111669B (en) * | 2013-04-18 | 2018-05-18 | 陈明灯 | A kind of loading changeable weight pendency fixed point displacement stress balance regulation device |
| CN104111669A (en) * | 2013-04-18 | 2014-10-22 | 陈明灯 | Suspension fixed-point displacement stress balance regulation and control device for carried object with variable weight |
| CN103475290B (en) * | 2013-08-15 | 2016-04-20 | 江苏云意电气股份有限公司 | The universal voltage regulator of a kind of bi-motor shunt load equilibrium assignment |
| CN103475290A (en) * | 2013-08-15 | 2013-12-25 | 江苏云意电气股份有限公司 | Double-motor parallel load balanced distribution universal voltage regulator |
| CN103475281B (en) * | 2013-09-02 | 2016-04-27 | 徐州工业职业技术学院 | A kind of double-motor synchronous control device based on PLC |
| CN103475281A (en) * | 2013-09-02 | 2013-12-25 | 徐州工业职业技术学院 | Dual-motor synchronous control device based on PLC (Programmable Logic Controller) |
| CN103762910A (en) * | 2014-01-29 | 2014-04-30 | 南京艾凌节能技术有限公司 | Power balance controlling device and method of multi-motor drive system |
| CN110575900A (en) * | 2019-09-06 | 2019-12-17 | 韶关核力重工机械有限公司 | Dual-drive automatic balance control system of intelligent environment-friendly gravel sand making machine |
| CN111355406A (en) * | 2020-04-02 | 2020-06-30 | 苏州三尔电气有限公司 | Variable-frequency transmission system for oil drilling platform |
| CN113172260A (en) * | 2021-04-25 | 2021-07-27 | 何海晶 | From numerically controlled fraise machine of taking belt tensioning structure |
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Owner name: GUIZHOU CHENGZHI HEAVY INDUSTRY TECHNOLOGY CO., L Free format text: FORMER OWNER: GUIZHOU CHENGZHI HEAVY INDUSTRY TECHNOLOGY CO., LTD. Effective date: 20081121 |
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Effective date of registration: 20081121 Address after: Building 5, Changling Road, Jinyang hi tech Zone, Guiyang, Guizhou Province, China: 550003 Applicant after: Guizhou Cheng Zhi Heavy Industry Technology Co., Ltd. Co-applicant after: Guizhou Electromechanical Research & Design Institute Address before: Building 5, Changling Road, Jinyang hi tech Zone, Guiyang, Guizhou Province, China: 550003 Applicant before: Guizhou Chengzhi Heavy Industry Sci-Tech Co., Ltd. |
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Open date: 20080903 |