CN102311023B - Given method for on-line detection of additional starting moment loaded mine hoist - Google Patents
Given method for on-line detection of additional starting moment loaded mine hoist Download PDFInfo
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- CN102311023B CN102311023B CN201110238012.4A CN201110238012A CN102311023B CN 102311023 B CN102311023 B CN 102311023B CN 201110238012 A CN201110238012 A CN 201110238012A CN 102311023 B CN102311023 B CN 102311023B
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Abstract
The invention relates to a given method for on-line detection of an additional starting moment of a loaded mine hoist, which comprises the following steps that: firstly, a tension sensor measures the tension of a steel wire rope for detecting the load weight in real time, a sending device sends out modulated signals in a wireless mode, a receiving device converts the wireless signals into voltage signals to obtain digital weight signals and transmits the digital weight signals to a singlechip, then, the singlechip calculates the digital weight signals to obtain the additional starting moment signals to be overlapped, the additional starting moment signals are sent to a host machine through a serial bus, finally, the host machine integrates the starting moment signals and the additional starting moment signals, sets overlapping current signals corresponding to the overlapping moment and judges whether a mechanical switch is switched off or not, when the mechanical switch is switched off, the overlapping current signals are output to a controller motor, and the motor is ensured to be started. The given method for on-line detection of the additional starting moment of the loaded mine hoist can simultaneously meet the starting requirement of the hoist under the conditions of heavy load, light load or idle load, the reverse rotation phenomenon occurring when the hoist is started is avoided, and the mine production safety is improved.
Description
Technical field
The present invention relates to the mine hoist adding starting torque given method and system of a kind of mine hoist adding starting torque given method, particularly a kind of online detection load-carrying.
Background technology
Adopt in the mine production of vertical shaft hoisting, the operation conditions of gig is directly connected to the safety in production on ore deposit.At present, most vertical shaft hoists adopt double-loop pattern to promote, and can think that the resisting moment of gig is approximately zero when it is unloaded, and when load-carrying, the resisting moment of gig is produced by the weight of cargo lifting.When mechanical brake is unclamped, when gig starts, the staring torque that the weight of lifting cargo is produced by electrical motor is immediately born, and gives step load of electrical motor.If during electrical motor is set up the additional staring torque of lifting, the lifting staring torque that electrical motor provides is less than the resisting moment of elevator system, gig can be transferred motion under the dragging of weight, occurs reversal development, and increasing the weight of along with weight, reversal development aggravation, time length is elongated, until gig is static during the two balance, then gig just forward accelerate, elevator system enters forward acceleration phase, and this reversal development is very disadvantageous to mine safety production.
At present, the startup of electrical motor is stopped and is generally adopted two closed loop controls, because the delay link of electric current loop and der Geschwindigkeitkreis will inevitably cause gig reversing, for addressing this problem, prior art adopts the method for differential feedforward to carry out lead compensation, when mechanical brake is unclamped, the staring torque of electrical motor is greater than the resisting moment of weight, to avoid reversing.But in actual applications, this method can not meet elevator system requirement to controller characteristic curve when zero load or underloading.
Summary of the invention
The object of the present invention is to provide a kind of mine hoist adding starting torque given method of online detection load-carrying, to solve the technical matters of mine hoist elevator system zero load in prior art or the reversion of light-load starting gig.
Another object of the present invention is to provide a kind of mine hoist adding starting torque given system of online detection load-carrying, to solve the technical matters of mine hoist elevator system zero load in prior art or the reversion of light-load starting gig.
For achieving the above object, the invention provides a kind of mine hoist adding starting torque given method of online detection load-carrying, comprise the following steps:
(1) tension force of pulling force sensor measuring steel wire rope detects load weight in real time, and detected value is sent to sending set;
(2) sending set reception detected value amplifies modulation treatment to detected value, and by wireless mode, the signal after modulation is sent;
(3) wireless signal that receiving device transmission and reception apparatus sends out, changes into voltage signal by wireless signal, obtains digital weight signal, and digital weight signal is sent to micro controller system.
(4) micro controller system receives digital weight signal, digital weight signal and pre-stored standard load value are compared, the residing additional phase of judgement gig, and the additional phase obtaining according to judgement is carried out computing to digital weight signal, the additional staring torque signal that obtains needing stack, then will add staring torque signal via universal serial bus and send to upper computer;
(5) the comprehensive staring torque signal of upper computer and additional staring torque signal, set the multipair superimposed current signal of answering of stack moment;
(6) upper computer Real-Time Monitoring, judges whether mechanical brake disconnects, if mechanical brake disconnects, and execution step (7); Otherwise, return to step (1);
(7) upper computer, to controller electrical motor output superimposed current signal, guarantees motor start-up.
Mine hoist adding starting torque given method according to a kind of online detection load-carrying described in preferred embodiment of the present invention, this additional phase specifically comprises not additional phase, little additional phase and full additional phase, and additional phase is not applicable to the startup requirement in the lighter situation of load; Little additional phase is applicable to the requirement under general condition of loading; Full additional phase is applicable to overload or startup requirement in emergency circumstances.
Mine hoist adding starting torque given method according to a kind of online detection load-carrying described in preferred embodiment of the present invention, step (1) also comprises before: preset gig load-carrying upper weight limit and lower limit, if load-carrying weight is less than lower weight limit, in additional phase not; If load-carrying weight is between lower weight limit and upper weight limit, in little additional phase; If load-carrying weight is greater than upper weight limit, in full additional phase.
The present invention also provides a kind of mine hoist adding starting torque given system of online detection load-carrying, comprising:
Pulling force sensor, is arranged on above the skip bucket of mine hoist, in order to the tension force Real-Time Monitoring load weight value of measuring steel wire rope, and detected value is sent to sending set;
Sending set, is connected with pulling force sensor, in order to the detected value receiving is amplified to modulation treatment, and by wireless mode, the signal after modulation is sent;
Receiving device, is connected with sending set, in order to wireless signal, changes into voltage signal, obtains digital weight signal, and digital weight signal is sent to micro controller system;
Micro controller system, be connected with receiving device, in order to digital weight signal and pre-stored standard load value are compared, the residing additional phase of judgement gig, and the additional phase obtaining according to judgement is carried out computing to digital weight signal, the additional staring torque signal that obtains needing stack, then will add staring torque signal via universal serial bus and send to upper computer;
Upper computer, is connected with micro controller system, in order to comprehensive staring torque signal and additional staring torque signal, sets the multipair superimposed current signal of answering of stack moment; And according to Real-Time Monitoring, judge whether mechanical brake disconnects, if mechanical brake disconnects,, to controller electrical motor output superimposed current signal, guarantee motor start-up.
According to the mine hoist adding starting torque given system of a kind of online detection load-carrying described in preferred embodiment of the present invention, its sending set further comprises:
The first modulate circuit, comprises two-stage the first voltage modulate circuit, in order to the detected value to pulling force sensor, nurses one's health, and makes it have certain power-handling capability;
Wireless transmitter module, is connected with modulate circuit, in order to detected value is carried out to carry out modulation treatment after power gain, and the signal after modulation is launched.
According to the mine hoist adding starting torque given system of a kind of online detection load-carrying described in preferred embodiment of the present invention, its receiving device further comprises:
Wireless receiving module, the signal sending in order to receive wireless transmitter module, and the signal receiving is carried out being sent to second voltage modulate circuit after demodulation reduction;
Second voltage modulate circuit, is connected with wireless receiving module, in order to the voltage signal to applicable A/D change-over circuit by signal condition;
A/D change-over circuit, is connected with second voltage modulate circuit, in order to voltage signal is converted to digital weight signal.
According to the mine hoist adding starting torque given system of a kind of online detection load-carrying described in preferred embodiment of the present invention, its micro controller system further comprises:
Data memory module, in order to store predefined gig load-carrying upper weight limit and lower limit;
Additional phase judge module, in order to digital weight signal and gig load-carrying upper weight limit and lower limit are compared, the residing additional phase of judgement gig;
Additional staring torque computing module, in order to digital weight signal is carried out to computing according to the judged result of additional phase judge module, obtains needing the additional staring torque signal of stack;
Signal transmitting module, sends to upper computer in order to will add staring torque signal by universal serial bus.
The present invention is by the online load measuring device load weight that gets a promotion, through micro controller system, calculate additional staring torque signal, solved the latency issue that in two closed loop controls, electric current loop and rotating speed change, lead compensation method than existing differential feedforward, the method can be calculated required staring torque in real time by micro controller system internal program, therefore can meet the startup requirement under gig heavy duty, underloading or zero load, avoid gig to occur reversing phenomenon, the safety that has improved coal production when starting simultaneously.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that the present invention detects the mine hoist adding starting torque given method of load-carrying online;
Fig. 2 is the application schematic diagram of the present invention's mine hoist adding starting torque given system of detecting online load-carrying.
Fig. 3 is the structure principle chart of a kind of sending set of the embodiment of the present invention.
Fig. 4 is the structure principle chart of a kind of receiving device of the embodiment of the present invention.
Fig. 5 is the structure principle chart of a kind of micro controller system of the embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, illustrate the present invention.
Following embodiment implements take technical solution of the present invention under prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Refer to Fig. 1, a kind of mine hoist adding starting torque given method of online detection load-carrying, comprises the following steps:
S11: the tension force of pulling force sensor measuring steel wire rope detects load weight in real time, and detected value is sent to sending set;
S12: sending set receives detected value detected value is amplified to modulation treatment, and by wireless mode, the signal after modulation is sent;
S13: the wireless signal that receiving device transmission and reception apparatus sends out, wireless signal is changed into voltage signal, obtain digital weight signal, and digital weight signal is sent to micro controller system.
S14: micro controller system receives digital weight signal, digital weight signal and pre-stored standard load value are compared, the residing additional phase of judgement gig, and the additional phase obtaining according to judgement is carried out computing to digital weight signal, the additional staring torque signal that obtains needing stack, then will add staring torque signal via universal serial bus and send to upper computer;
S15: the comprehensive staring torque signal of upper computer and additional staring torque signal, set the multipair superimposed current signal of answering of stack moment;
S16: upper computer Real-Time Monitoring, judge whether mechanical brake disconnects, if mechanical brake disconnects, execution step S17:; Otherwise, return to step S11;
S17: upper computer, to controller electrical motor output superimposed current signal, guarantees motor start-up.
In above-mentioned method, this additional phase specifically comprises not additional phase, little additional phase and full additional phase, and additional phase is not applicable to the startup requirement in the lighter situation of load; Little additional phase is applicable to the requirement under general condition of loading; Full additional phase is applicable to overload or startup requirement in emergency circumstances.
In addition, in the method for the invention, step (1) also comprises before: preset gig load-carrying upper weight limit and lower limit, if load-carrying weight is less than lower weight limit, in additional phase not; If load-carrying weight is between lower weight limit and upper weight limit, in little additional phase; If load-carrying weight is greater than upper weight limit, in full additional phase.
To be applicable to load not lighter for additional phase, and the moment being produced by electrical motor can start completely nonreversible in the situation that; Little additional phase is applicable to general load, when gig carries entirely, by this electric current that superposes, just can meet the demands; It is overweight or be in an emergency when needing high-torque that large additional phase is applicable to gig weight.These values all can be set in micro controller system, can reduce gradually the magnitude of current of stack after gig completes startup, until stack amount is zero electrical motor, normally move, and the speed that stack amount reduces can be determined according to actual conditions.
Please refer to Fig. 2 to Fig. 5, the present invention also provides a kind of mine hoist adding starting torque given system of online detection load-carrying, comprising: pulling force sensor 10, sending set 11, receiving device 12, micro controller system 13 and upper computer 14.
Sending set 11 is in order to the detected value receiving is amplified to modulation treatment, and by wireless mode, the signal after modulation sent, and it further comprises:
The first modulate circuit 111, comprises two-stage the first voltage modulate circuit 112, in order to the detected value of pulling force sensor 10 is nursed one's health, makes it have certain power-handling capability;
Wireless transmitter module 113, is connected with modulate circuit 111, in order to detected value is carried out to carry out modulation treatment after power gain, and the signal after modulation is launched.
Receiving device 12 is connected with sending set 11, in order to wireless signal, changes into voltage signal, obtains digital weight signal, and digital weight signal is sent to micro controller system 13, and it further comprises:
Second voltage modulate circuit 122, is connected with wireless receiving module 121, in order to the voltage signal to applicable A/D change-over circuit 123 by signal condition;
A/D change-over circuit 123, is connected with second voltage modulate circuit 122, in order to voltage signal is converted to digital weight signal.
Data memory module 131, in order to store predefined gig load-carrying upper weight limit and lower limit;
Additional phase judge module 132, in order to digital weight signal and gig load-carrying upper weight limit and lower limit are compared, the residing additional phase of judgement gig;
Additional staring torque computing module 133, in order to digital weight signal is carried out to computing according to the judged result of additional phase judge module, obtains needing the additional staring torque signal of stack;
Signal transmitting module 134, sends to upper computer 14 in order to will add staring torque signal by universal serial bus.
The control of micro controller system 13 is divided into three phases: not additional phase, little additional phase and full additional phase.To be applicable to load not lighter for additional phase, and the moment being produced by electrical motor can start completely nonreversible in the situation that; Little additional phase is applicable to general load, when gig carries entirely, by this electric current that superposes, just can meet the demands; It is overweight or be in an emergency when needing high-torque that large additional phase is applicable to gig weight.In the above embodiment of the present invention, the value of additional staring torque is by calculating in real time, it also can set in advance in micro controller system, after completing startup, gig can reduce gradually the magnitude of current of stack, until stack amount is zero electrical motor, normally move, the speed that stack amount reduces can be determined according to actual conditions.
The present invention is by the online load measuring device load weight that gets a promotion, through micro controller system, calculate additional staring torque signal, solved the latency issue that in two closed loop controls, electric current loop and rotating speed change, lead compensation method than existing differential feedforward, the method can be calculated required staring torque in real time by micro controller system internal program, therefore can meet the startup requirement under gig heavy duty, underloading or zero load, avoid gig to occur reversing phenomenon, the safety that has improved coal production when starting simultaneously.
Disclosed is above only several specific embodiment of the present invention, but the present invention is not limited thereto, and the changes that any person skilled in the art can think of, all should drop in protection scope of the present invention.
Claims (7)
1. an online mine hoist adding starting torque given method that detects load-carrying, is characterized in that, comprises the following steps:
(1) tension force of pulling force sensor measuring steel wire rope detects load weight in real time, and detected value is sent to sending set;
(2) sending set reception detected value amplifies modulation treatment to detected value, and by wireless mode, the signal after modulation is sent;
(3) signal after the modulation that receiving device transmission and reception apparatus sends out, changes into voltage signal by the signal after described modulation, obtains digital weight signal, and described digital weight signal is sent to micro controller system;
(4) micro controller system receives described digital weight signal, digital weight signal and pre-stored standard load value are compared, the residing additional phase of judgement gig, and the additional phase obtaining according to judgement is carried out computing to digital weight signal, the additional staring torque signal that obtains needing stack, then will add staring torque signal via universal serial bus and send to upper computer;
(5) the comprehensive staring torque signal of upper computer and additional staring torque signal, set the corresponding superimposed current signal of stack moment;
(6) upper computer Real-Time Monitoring, judges whether mechanical brake disconnects, if mechanical brake disconnects, and execution step (7); Otherwise, return to step (1);
(7) upper computer, to controller electrical motor output superimposed current signal, guarantees motor start-up.
2. the mine hoist adding starting torque given method of a kind of online detection load-carrying as claimed in claim 1, it is characterized in that, described additional phase specifically comprises not additional phase, little additional phase and full additional phase, and described not additional phase is applicable to the startup requirement in the lighter situation of load; Described little additional phase is applicable to the requirement under general condition of loading; Described full additional phase is applicable to overload or startup requirement in emergency circumstances.
3. the mine hoist adding starting torque given method of a kind of online detection load-carrying as claimed in claim 1, it is characterized in that, step (1) also comprises before: preset gig load-carrying upper weight limit and lower limit, if load-carrying weight is less than lower weight limit, in additional phase not; If load-carrying weight is between lower weight limit and upper weight limit, in little additional phase; If load-carrying weight is greater than upper weight limit, in full additional phase.
4. an online mine hoist adding starting torque given system that detects load-carrying, is characterized in that, comprising:
Pulling force sensor, is arranged on above the skip bucket of mine hoist, in order to the tension force Real-Time Monitoring load weight value of measuring steel wire rope, and detected value is sent to sending set;
Sending set, is connected with described pulling force sensor, in order to the detected value receiving is amplified to modulation treatment, and by wireless mode, the signal after modulation is sent;
Receiving device, is connected with described sending set, in order to the signal after described modulation is changed into voltage signal, obtains digital weight signal, and described digital weight signal is sent to micro controller system;
Micro controller system, be connected with described receiving device, in order to digital weight signal and pre-stored standard load value are compared, the residing additional phase of judgement gig, and the additional phase obtaining according to judgement is carried out computing to digital weight signal, the additional staring torque signal that obtains needing stack, then will add staring torque signal via universal serial bus and send to upper computer;
Upper computer, is connected with described micro controller system, in order to comprehensive staring torque signal and additional staring torque signal, sets the corresponding superimposed current signal of stack moment; And according to Real-Time Monitoring, judge whether mechanical brake disconnects, if mechanical brake disconnects,, to controller electrical motor output superimposed current signal, guarantee motor start-up.
5. the mine hoist adding starting torque given system of a kind of online detection load-carrying as claimed in claim 4, is characterized in that, described sending set further comprises:
The first modulate circuit, comprises two-stage the first voltage modulate circuit, in order to the detected value to pulling force sensor, nurses one's health, and makes it have certain power-handling capability;
Wireless transmitter module, is connected with described the first modulate circuit, in order to detected value is carried out to carry out modulation treatment after power gain, and the signal after modulation is launched.
6. the mine hoist adding starting torque given system of a kind of online detection load-carrying as claimed in claim 4, is characterized in that, described receiving device further comprises:
Wireless receiving module, the signal sending in order to receive described sending set, and the signal receiving is carried out being sent to second voltage modulate circuit after demodulation reduction;
Second voltage modulate circuit, is connected with described wireless receiving module, in order to the voltage signal to applicable A/D change-over circuit by signal condition;
A/D change-over circuit, is connected with described second voltage modulate circuit, in order to voltage signal is converted to digital weight signal.
7. the mine hoist adding starting torque given system of a kind of online detection load-carrying as claimed in claim 4, is characterized in that, described micro controller system further comprises:
Data memory module, in order to store predefined gig load-carrying upper weight limit and lower limit;
Additional phase judge module, in order to digital weight signal and gig load-carrying upper weight limit and lower limit are compared, the residing additional phase of judgement gig;
Additional staring torque computing module, in order to digital weight signal is carried out to computing according to the judged result of additional phase judge module, obtains needing the additional staring torque signal of stack;
Signal transmitting module, sends to upper computer in order to will add staring torque signal by universal serial bus.
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| CN201110238012.4A CN102311023B (en) | 2011-08-18 | 2011-08-18 | Given method for on-line detection of additional starting moment loaded mine hoist |
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| CN102923539A (en) * | 2012-10-30 | 2013-02-13 | 吴江信谊精密五金有限公司 | Device for detecting tension of elevator dragging steel wire rope |
| CN103803415B (en) * | 2014-02-20 | 2015-07-22 | 张家港港务集团有限公司港盛分公司 | Method for detecting and maintaining braking torque value of inertia brake of portal crane |
| CN105523455A (en) * | 2015-11-02 | 2016-04-27 | 康力电梯股份有限公司 | Elevator weighing device |
| CN108667363A (en) * | 2017-03-31 | 2018-10-16 | 北大方正集团有限公司 | The control method and device of stepper motor movement |
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| CN101279688A (en) * | 2008-05-15 | 2008-10-08 | 董传德 | Monitoring system for wire rope tension balancing cylinder and lifting load |
| CN101734529A (en) * | 2009-12-25 | 2010-06-16 | 上海永大吉亿电机有限公司 | Elevator starting torque compensation method |
| CN202245578U (en) * | 2011-08-18 | 2012-05-30 | 上海交通大学 | Mine hoist adding starting torque given system for on-line load detection |
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| JPS50149040A (en) * | 1974-05-22 | 1975-11-28 | ||
| DE3863233D1 (en) * | 1987-05-27 | 1991-07-18 | Inventio Ag | LIFT DRIVE WITH CONTROL DEVICE FOR JUMP-FREE MOVING. |
| JPH0780646B2 (en) * | 1988-03-18 | 1995-08-30 | 株式会社日立製作所 | Elevator control equipment |
| ES2100020T3 (en) * | 1993-03-04 | 1997-06-01 | Otis Elevator Co | POLARIZATION TORQUE FOR MOTORIZATION OF AN ELEVATOR TO PREVENT SLIDING UP OR DOWN. |
| EP0884264A1 (en) * | 1997-06-09 | 1998-12-16 | Inventio Ag | Method and device for drive control |
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| CN101279688A (en) * | 2008-05-15 | 2008-10-08 | 董传德 | Monitoring system for wire rope tension balancing cylinder and lifting load |
| CN101734529A (en) * | 2009-12-25 | 2010-06-16 | 上海永大吉亿电机有限公司 | Elevator starting torque compensation method |
| CN202245578U (en) * | 2011-08-18 | 2012-05-30 | 上海交通大学 | Mine hoist adding starting torque given system for on-line load detection |
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Effective date of registration: 20161216 Address after: 223001 science and Technology Industrial Park, Jiangsu, Huaian science and technology road, No. 18 Patentee after: North Jiangsu Institute of Shanghai Jiao Tong University Address before: 800 Dongchuan Road, Shanghai, No. 200240 Patentee before: Shanghai Jiaotong Univ. |