CN201424284Y - Belt speed measuring and monitoring device of belt conveyor - Google Patents
Belt speed measuring and monitoring device of belt conveyor Download PDFInfo
- Publication number
- CN201424284Y CN201424284Y CN2009200856007U CN200920085600U CN201424284Y CN 201424284 Y CN201424284 Y CN 201424284Y CN 2009200856007 U CN2009200856007 U CN 2009200856007U CN 200920085600 U CN200920085600 U CN 200920085600U CN 201424284 Y CN201424284 Y CN 201424284Y
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- belt
- belt speed
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Abstract
The utility model relates to the field of measuring and monitoring the belt speed of a belt conveyor and provides a belt speed measuring and monitoring device of the belt conveyor, which comprises a signal collection input unit, a PLC control unit, an upper computer and a graphical output unit, the signal collection input unit comprises a signal source and an inductive switch, the signal source ismounted on a drum of the belt conveyor, the inductive switch receives the signals sent from the signal source, the inductive switch outputs pulse signals to the PLC control unit, the graphical outputunit is connected to the PLC control unit, the PLC control unit calculates the current belt speed of the belt according to the pulse signals and carries out comparing account, and the graphical output unit displays the current belt speed of the belt and alarm signals in real time. The utility model is capable of remotely setting parameters and remotely displaying belt speed in real time, has highstability, and convenient installation and maintenance, is capable of directly using the prior apparatus, and has low cost.
Description
Technical field
The utility model relates to the band conveyor belt speed and measures and the monitoring field particularly a kind of band conveyor belt speed measure and control device.
Background technology
Band conveyor is in the process of convey materials, owing to hydraulic coupler fault, coupler fault between drive motor and the main transmission drum; Belt all can take place and owe the speed operation in perhaps excessive owing to materials flow, belt tension is lax etc.Owe speed and untimely taking measures if belt takes place, the material of upstream band machine will be piled up and influence the normal operation of whole stockline at the afterbody funnel, can rub belt when serious and equipment breakdown takes place.Therefore, the speed of measuring and monitor belt in real time is very important.
What existing belt speed control setup mainly used is the switch that skids, and kind is more, and principle of work and method of inspection are also had nothing in common with each other.No matter adopt which kind of mode, all must be installed in and judge on the belt whether belt skids by its distinctive device.These switches that skid all exist can't long-range setup parameter, can't remote live show belt speed and problem such as inconvenience is installed and influences its result of use.
The utility model content
Technical problem to be solved in the utility model is in order to overcome the deficiency of existing belt speed control setup, a kind of band conveyor belt speed measure and control device based on PLC to be provided.
For solving the problems of the technologies described above, the utility model provides a kind of band conveyor belt speed measure and control device based on PLC, and the technical scheme that is adopted is: it comprises the acquisition of signal input block, PLC control unit, figure output unit; Described acquisition of signal input block comprises signal source, inductive switch, described signal source is installed on the belt conveyor roller, near the signal that described inductive switch is installed in the described signal source and the acceptable signal source is sent, described inductive switch output pulse signal is delivered to described PLC control unit, described figure output unit connects described PLC control unit, described PLC control unit calculates current belt belt speed according to described impulse singla, and comparing calculating, described figure output unit shows described current belt belt speed in real time.
As further improvement project, the utility model also comprises upper computer, described upper computer is used to set the benchmark belt belt speed parameter of described PLC control unit storage, described PLC control unit more described benchmark belt belt speed and current belt belt speed, judge whether early warning, be, output alarm signal then, described figure output unit shows described alerting signal.
The beneficial effects of the utility model are, the band conveyor belt speed is measured, monitoring and protection are all finished by the PLC program, can long-range setup parameter, remote live shows belt speed, cuts down the number of intermediate links, and improve stability, and installation and maintenance is all convenient.Because in large-scale control System of Belt Conveyer, PLC and upper computer are existing devices, the utility model only needs every belt to add an inductive switch, and not needing increases under the situation of other user cost, reaches the measurement of band conveyor belt speed, monitoring function.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 be the utility model embodiment provide in the PLC user program, realize program function piece to the velocity measurement and the control of controlled object.
The specific embodiment
As shown in Figure 1, belt transporter comprises: motor 15 connects hydraulic coupler 14, and hydraulic coupler 14 connects reductor 13, and reductor 13 connects drive roll 11 by coupler 12, drive roll 11 connects driven cylinder 9 by belt 10, and signal source 1 is installed on the former circle of driven cylinder 9.Signal source 1 can have a plurality of, and its number is by the size decision of driven cylinder 9, and the driven cylinder 9 formers circle of five equilibrium below 1 meter is installed 2, and the driven cylinder 9 formers circle of five equilibrium is installed 4 more than 1 meter.Inductive switch 2 is installed on the fixed support that maintains a certain distance with inductive switch, the output signal of inductive switch 2 is received on the PLC I/O module 4 by cable 3, PLC I/O module 4 connects PLC main website 7 by first communication cable 5, and PLC main website 7 is by second communication cable, 6 upper computer graphic configuration HMI 8.The PLC main website 7 that uses in the utility model is Schneider PLC, and PLC I/O module 4 is Tours gram I/O module, and upper computer graphic configuration HMI8 is the beneficial Ifix3.5 of collection, and inductive switch 2 is Tours gram inductive switch.
Fig. 2 be the utility model embodiment provide in the PLC user program, realize program function piece to the velocity measurement and the control of controlled object.Just before the task, upper computer graphic configuration software is input to the normal belt speed V1 of band conveyor, band conveyor startup filtering time T 1, PLC warning filtering time T 2 the program function piece of PLC.During work, belt drives driven cylinder and rotates, the signal source that is installed on the driven cylinder periodically passes through inductive switch, inductive switch is just periodically exported pulse, impulse singla is directly delivered on the load module of PLC, impulse singla uses positive rise effective in the PLC program, can stop impulse singla has output to produce often spurious signal like this, guarantees the reliability of incoming signal.Calculate time T 0 between per two pulses by the PLC user program, because the girth of driven cylinder, the signal source angle that is installed on the driven cylinder are fixed, what belt moved between these two pulses just can determine apart from S, this distance is S=2 ∏ R/N, ∏ is a circular constant, R is driven radius roller, and N is the signal source number that is installed in the driven cylinder former circle of five equilibrium on the driven cylinder.Thereby obtain the real-time speed V2=S/T of belt.PLC compares according to the normal belt speed V1 of the band conveyor of real-time speed V2 and upper computer graphic configuration software set, the percentage that is V2/V1 recently produces alerting signal B, output early warning signal M1 when 60%<B≤80%, B≤60% o'clock process warning filtering time T 2 back outputting parking signal M2, the purpose of using T2 is the belt speed shake that produces in order to prevent belt materials flow sudden change, produces flase alarm and stops.Upper computer constantly reads real-time speed V2 and is presented on the picture from PLC in this process, also reads alerting signal B, early warning signal M1 simultaneously, stop signal M2 distinguishes its state with color.
Detailed description the utility model embodiment provides the band conveyor belt speed measure and control device implementation method based on PLC below, may further comprise the steps:
Step 1 is pressed reset button M3 in the user program of upper computer configuration software, set normal belt speed V1=2 meter per second, starts filtering time T 1=10 second, warning filtering time T 2=3 second;
Step 2, when belt started, PLC measured program function BOB(beginning of block) work with control to the belt speed of controlled object, by inductive switch the impulse singla I1 of controlled belt through PLC I/O module, the user program belt speed that is delivered to PLC is measured and the controllable function piece;
Step 3, the user program belt speed of PLC measure with the controllable function piece in, this signal is carried out obtaining real-time belt speed V2 after the calculation of filtered is written to the corresponding intermediate variable of PLC;
Step 4, the belt speed of PLC is measured and the controllable function piece, the percentum that calculates real-time belt speed V2 and normal belt speed V1 is as alerting signal B, when satisfying condition, obtain the corresponding condition signal, when 60%<B≤80%, produce early warning signal M1, when B≤60%, produce stop signal M2, be written to the corresponding intermediate variable of PLC through warning filtering time T 2 backs
Step 5, PLC carries out control corresponding according to the value of early warning signal M1, stop signal M2 to controlled belt, and upper computer reads the value of real-time belt speed V2, alerting signal B, early warning signal M1, stop signal M2 simultaneously, is presented on the picture
For the centralized control of belt stockline, every belt only need add an inductive switch, and its mode is identical with single control, all calls the identical functions piece, and the control variable that produces separately participates in control and shows.
It should be noted last that, the above specific embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1, a kind of band conveyor belt speed measure and control device is characterized in that it comprises the acquisition of signal input block, PLC control unit, figure output unit; Described acquisition of signal input block comprises signal source, inductive switch, described signal source is installed on the belt conveyor roller, near the signal that described inductive switch is installed in the described signal source and the acceptable signal source is sent, described inductive switch output pulse signal is delivered to described PLC control unit, described figure output unit connects described PLC control unit, described PLC control unit calculates current belt belt speed according to described impulse singla, and comparing calculating, described figure output unit shows described current belt belt speed in real time.
2, band conveyor belt speed measure and control device according to claim 1, it is characterized in that, also comprise upper computer, described upper computer is used to set the benchmark belt belt speed parameter of described PLC control unit storage, described PLC control unit more described benchmark belt belt speed and current belt belt speed judge whether early warning, are, output alarm signal then, described figure output unit shows described alerting signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009200856007U CN201424284Y (en) | 2009-05-05 | 2009-05-05 | Belt speed measuring and monitoring device of belt conveyor |
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CN2009200856007U CN201424284Y (en) | 2009-05-05 | 2009-05-05 | Belt speed measuring and monitoring device of belt conveyor |
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CN201424284Y true CN201424284Y (en) | 2010-03-17 |
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CN2009200856007U Expired - Fee Related CN201424284Y (en) | 2009-05-05 | 2009-05-05 | Belt speed measuring and monitoring device of belt conveyor |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103303653A (en) * | 2013-07-01 | 2013-09-18 | 江苏烨泰玻璃有限公司 | Automatic diagnosing belt conveyer |
CN103569623A (en) * | 2012-08-09 | 2014-02-12 | 金东纸业(江苏)股份有限公司 | System and method for remote fault diagnosis of conveying belt |
CN106679974A (en) * | 2017-01-25 | 2017-05-17 | 九三粮油工业集团有限公司 | Transmission equipment tail pulley stall alarm system |
CN107458841A (en) * | 2017-08-03 | 2017-12-12 | 武汉钢铁有限公司 | A kind of apparatus and method for belt driven rollers fault diagnosis |
CN108152522A (en) * | 2017-12-07 | 2018-06-12 | 西安航天自动化股份有限公司 | A kind of roller bearing screening machine screen axis rotational speed monitor system and monitoring method |
CN111537046A (en) * | 2020-05-08 | 2020-08-14 | 江苏远邦工业科技有限公司 | Method for automatically correcting speed of belt scale on line |
-
2009
- 2009-05-05 CN CN2009200856007U patent/CN201424284Y/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103569623A (en) * | 2012-08-09 | 2014-02-12 | 金东纸业(江苏)股份有限公司 | System and method for remote fault diagnosis of conveying belt |
CN103303653A (en) * | 2013-07-01 | 2013-09-18 | 江苏烨泰玻璃有限公司 | Automatic diagnosing belt conveyer |
CN106679974A (en) * | 2017-01-25 | 2017-05-17 | 九三粮油工业集团有限公司 | Transmission equipment tail pulley stall alarm system |
CN107458841A (en) * | 2017-08-03 | 2017-12-12 | 武汉钢铁有限公司 | A kind of apparatus and method for belt driven rollers fault diagnosis |
CN108152522A (en) * | 2017-12-07 | 2018-06-12 | 西安航天自动化股份有限公司 | A kind of roller bearing screening machine screen axis rotational speed monitor system and monitoring method |
CN111537046A (en) * | 2020-05-08 | 2020-08-14 | 江苏远邦工业科技有限公司 | Method for automatically correcting speed of belt scale on line |
CN111537046B (en) * | 2020-05-08 | 2021-06-25 | 江苏远邦工业科技有限公司 | Method for automatically correcting speed of belt scale on line |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20150505 |
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EXPY | Termination of patent right or utility model |