CN2561527Y - Online rolling comprehensive parameters measuring instrument for medium plate mills - Google Patents
Online rolling comprehensive parameters measuring instrument for medium plate mills Download PDFInfo
- Publication number
- CN2561527Y CN2561527Y CN 02268459 CN02268459U CN2561527Y CN 2561527 Y CN2561527 Y CN 2561527Y CN 02268459 CN02268459 CN 02268459 CN 02268459 U CN02268459 U CN 02268459U CN 2561527 Y CN2561527 Y CN 2561527Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- output
- rolling
- input
- photoelectrical coupler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a comprehensive parameter measuring apparatus for online steel rolling by a medium plate mill, pertaining to the measurement technical field. The comprehensive measuring apparatus serves to real-time measure, display, record, and control mill speed and rolling status, length and time of steel sheets and other work parameters. The technical proposal thereof is that the measuring apparatus comprises a left rolling force sensor and a right rolling force sensor, a rotary encoder, a displaying unit and a parameter measuring circuit which comprises a rolling force signal conversion circuit, an input circuit for encoder signal isolation, an on-off input circuit, a relay output circuit and a central control circuit. The measuring apparatus reflects the actual rolling force of the medium plate mill, decides whether the mill is at work or not according to the change of the rolling force, calculates the rotation speed and decides the direction according to received code signals and then obtains the actual length and rolling time of medium steel sheets of each pass and displays the status of a plurality of passes synchronously. The utility model effectively improves the yield rate and physical properties of steel sheets.
Description
Technical field
The utility model relates to a kind of instrument that running parameter is measured in the plate reversable mill operation of rolling that is used for, and belongs to field of measuring technique.
Background technology
In rolling process, the singlestandmill of medium plate mill is the capital equipment of rolled plate.This milling train is in when work, steel billet usually will be in milling train reciprocal rolling 20 multi-pass, the length of each passage steel billet is all changing.If the steel rolling operative employee can in time grasp each passage steel plate length at the end, with control and the raising lumber recovery that goes far towards actual template.If can in time grasp the actual rolling time of each block plate, also will help temperature-controlled rolling, improve the physical property of steel plate.In addition, medium plate rolling is using special rolling as " dog bone " rolling, just needs measure more exactly the physical length that steel plate is nipped, control in real time depress on lift with milling train and oppositely move back steel.Yet, in middle plate steel rolling, also do not have special measuring instrument can finish above-mentioned task at present.Therefore, develop a kind of can measure rolling light plate length in real time and show in real time to satisfy the steel rolling general measuring instrument that output control requires be very important, this will play well auxiliary guaranteeing role to the lumber recovery that improves steel plate and the physical property of steel plate.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of general measuring instrument that can measure, show, write down and control running parameters such as milling train rhythm, the as-rolled condition of grasping steel plate, length, time in real time.
The technical scheme that addresses the above problem is:
The online steel rolling comprehensive parameter measuring of a kind of jobbing sheet-rolling mill instrument, it comprises left and right rolling force sensor, rotary encoder, display unit and parameter measurement circuit, the rolling power sensor, rotary encoder, display unit all are connected with parameter measurement circuit respectively, parameter measurement circuit comprises roll-force signal conversion circuit, code device signal isolation input circuit, switching value input circuit, relay output circuit and central control circuit, and the structure and the connected mode of foregoing circuit are as follows:
A. roll-force signal conversion circuit, comprise left roll-force, two groups of identical signal conversion circuits of right roll-force, every group of roll-force signal conversion circuit comprises sampling part, rating unit, shaping unit and out-coupling part, sampling part comprises resistance R 1, R2, W1, R3, operational amplifier OP1, the A/D converter, rating unit comprises operational amplifier OP2, the D/A converter, Zener diode D1, shaping unit comprises resistance R 4, capacitor C 1, phase inverter U1, out-coupling part is photoelectrical coupler DG1, their connected mode is: the resistance R 1 of sampling part, R2, W1 forms potential-divider network, R1 connects the output signal end of rolling force sensor, the dividing potential drop output of W1 meets R3, meet operational amplifier OP1 again, OP1 connects into the mode of follower, its output termination is than the in-phase end of hinge partial arithmetic amplifier OP2, the output of the reverse termination D/A converter of OP2, also connect the negative pole of voltage stabilizing two rubbish pipe D1 simultaneously, its plus earth, the output of OP2 is connected on the series connection contact of shaping unit R4 and C1, another termination power vd D of R4, the other end ground connection of C1, this contact connects the input of phase inverter U1 again, the input of its output termination photoelectrical coupler DG1, the output termination central control circuit of DG1, the output of the operational amplifier OP1 of sampling part is also received an input of A/D converter, the output termination central control circuit of A/D converter, another input of A/D converter is by the signal input of another group roll-force simultaneously;
B. code device signal is isolated input circuit, each rotary encoder has the A phase, B is two groups of output pulses mutually, code device signal is isolated input circuit correspondence with it, the A phase signals is isolated the input circuit structure, it is by resistance R 5, R6, photoelectrical coupler DG2, capacitor C 2, phase inverter U2 forms, the light emitting diode of photoelectrical coupler DG2 just, the A that the negative pole two ends connect rotary encoder respectively exports the A and the A end of pulse mutually, the colelctor electrode connecting resistance R6 of the phototriode of photoelectrical coupler DG2, electric capacity is attempted by between the collector and emitter, colelctor electrode output connects the input of U2, the output termination central control circuit [5] of U2, the grounded emitter of phototriode;
The structure that the B phase signals is isolated input circuit is mutually identical with A;
C. switching value input circuit, the utility model is provided with a plurality of identical switching value input circuits, each circuit all is made up of photoelectrical coupler DG4, resistance R 7, R8, the light emitting diode negative pole of photoelectrical coupler DG4 connects external switch, the positive pole of light emitting diode meets power vd D through current-limiting resistance R7, load resistance R8 connects the colelctor electrode of phototriode, and colelctor electrode output is connected to KI1～KI4 of central control circuit CPLD, its grounded emitter;
D. relay output circuit, the relay output circuit is provided with the identical circuit of two line structures, form by photoelectrical coupler DG5, resistance R 9, diode D2 and relay J respectively, the light emitting diode negative pole of photoelectrical coupler DG5 connects KO1 or the KO2 mouth of central control circuit CPLD, positive pole meets power vd D through resistance R 9, the coil of electrical equipment J is succeeded in the colelctor electrode output of the phototriode of photoelectrical coupler, and diode D2 is connected across the two ends of relay J, the grounded emitter of phototriode;
E. central control circuit, central control circuit comprises single-chip microcomputer, the CPLD interface, the F1ash memory, the display unit interface, the computer communication interface, the CPLD interface respectively with roll-force signal conversion circuit output signal end, code device signal is isolated the output of input circuit, the output of A/D converter, the output of switching value input circuit, the input of relay output circuit is connected, single-chip microcomputer is by bus and difference CPLD interface, the Flash memory is connected, also pass through TXDI, the EXD1 interface is connected with the display unit interface, passes through TXD2, the EXD2 interface is connected with the computer communication interface.
The online steel rolling comprehensive parameter measuring of above-mentioned jobbing sheet-rolling mill instrument, the quantity of described rotary encoder is 4.
The online steel rolling comprehensive parameter measuring of above-mentioned jobbing sheet-rolling mill instrument, described display unit is 1～8.
The online steel rolling comprehensive parameter measuring of above-mentioned jobbing sheet-rolling mill instrument, described switching value input circuit is 4.
The utility model relies on the actual roll-force of rolling force sensor reflection jobbing sheet-rolling mill A, B both sides, variation judges whether jobbing sheet-rolling mill is in the steel rolling state according to roll-force, calculate the rotating speed of jobbing sheet-rolling mill and judge direction according to the code signal that receives, roller according to input directly is worth physical length and the rolling time of consuming of each passage that calculates each passage light plate of milling train then, and can show length and time that a plurality of passages produce simultaneously.It has the following advantages:
1. can be that core realizes high-performance, High-reliability Control with the high-speed microprocessor, finish the collection, processing, record and the control that the scene there are related parameter;
2. can revise the control parameter in real time by the display window on the panel, operated key;
3. support a plurality of display units, each display unit shows synchronously, and plug and play no matter each operative employee is far and near, all can in time be observed desired data, and is convenient and practical;
4. have long-range host computer interface, but the field data teletransmission is convenient to management and is realized whole factory automation to central control room;
5. can improve the physical property of the lumber recovery and the steel plate of steel plate effectively.
Description of drawings
Fig. 1 is an electric theory diagram of the present utility model;
Fig. 2 is an electrical schematic diagram;
Fig. 3 is a program flow chart.
The specific embodiment
As seen from Figure 1, the utility model comprises rolling force sensor, rotary encoder, display unit and parameter measurement circuit, the rolling power sensor, rotary encoder, display unit all are connected with parameter measurement circuit respectively, and parameter measurement circuit comprises roll-force signal conversion circuit 1, code device signal isolation input circuit 2, switching value input circuit 3, relay output circuit 4 and central control circuit 5.
Fig. 2 has shown structure, the connected mode of foregoing circuit, is described below below in conjunction with the course of work:
A. the roll-force signal conversion circuit 1.It comprises left roll-force, two groups of identical signal conversion circuits of right roll-force, the signal conversion circuit of the left roll-force of having drawn in Fig. 2, the right rolling omission of trying hard to.Every group of roll-force signal conversion circuit comprises sampling part, rating unit, shaping unit and out-coupling part.The resistance R 1 of sampling part, R2, W1 form potential-divider network, the voltage range that the simulation of Rolling Force amount signal conversion A/D conversion that is used for that the scene is sent allows, the dividing potential drop output of W1 meets R3, meet operational amplifier OP1 again, OP1 adopts the CA3140 integrated circuit, and the mode that connects into follower is used to carry out the impedance conversion.The operational amplifier OP2 of its output termination rating unit, OP2 adopts LM393 integrated circuit device as a comparison, be used for the output voltage and the roll-force signal of D/A converter are compared the generation out-of-limit signal of roll-force (being that steel plate enters and withdraw from signal), resistance R 4, capacitor C 1, the reverser U1 of this signal by shaping unit disappears and trembles shaping, and the CPLD interface that enters central control circuit through the isolation of photoelectricity coupling DG2 is handled then.Meanwhile, the roll-force signal also carries out analog to digital conversion from the input that the output of the operational amplifier OP1 of sampling part is received the A/D converter, another input of A/D converter is by the signal input of another group roll-force, the output termination central control circuit 5 of A/D converter is used to show the size of roll-force.The D/A converter model of present embodiment is TLC7615, and A/D converter model is AD7705 Σ/Δ.
B. code device signal is isolated input circuit 2.Present embodiment has 4 rotary encoders, has only drawn one of them in Fig. 2, all the other omissions.Each rotary encoder has A phase, B two groups of output pulses mutually, and rotary encoder is by the speed of the pulse reflection roll rotation of A phase or B phase and the angle that turns over, and also distinguishes forward or reverse by the phase relation of A, B.When the leading B of A for just changeing, and when being counter-rotating before the B ultrasonic during A.The A and the A of encoder output, B and B are two pairs of differential signals, when A is higher than A or B and is higher than B, the photoelectricity coupling is output as low level, when A was higher than A or B and is higher than B, then the photoelectricity coupling was output as high level.Produce SA, SB two phase signals after resistance R 6 and capacitor C 2, U2 shaping, the CPLD interface that enters central control circuit 5 is counted and is declared to processing.
C. the switching value input circuit 3.The utility model is provided with the identical switching value input circuit 3 of a plurality of structures, and present embodiment is 4, and label is KI1～KI4, has drawn one of them among Fig. 2, all the other omissions.It is made up of photoelectrical coupler DG4, resistance R 7, R8.At work, when the external contact signal closes, the light emitting diode of photoelectrical coupler partly has electric current to pass through, then phototriode conducting, and output signal is a low level; Otherwise when contact signal was opened, phototriode turn-offed, and output signal is a high level, comes indicator cock amount state with this.The CPLD interface of central control circuit 5 is also received in its output.
D. the relay output circuit 4.Relay output circuit 4 is provided with two-way KO1, KO2, and structure is identical, draws one of them among Fig. 2.It is made up of photoelectrical coupler DG5, resistance R 9, diode D2 and relay J respectively, the input termination central control circuit 5 of photoelectrical coupler DG5, the colelctor electrode output of the phototriode of coupler connects the positive pole of diode D2, the negative pole of diode D2 meets power supply VCC again, and the relay coil of relay J is connected across the two ends of diode D2.When the KO signal from the CPLD interface of central control circuit 5 was low level, the light emitting diode of photoelectrical coupler had electric current to pass through, then phototriode conducting, relay closes; Otherwise relay is opened.
E. central control circuit 5.Central control circuit 5 comprises single-chip microcomputer, CPLD interface, Flash memory, display unit interface, computer communication interface, single-chip microcomputer by bus with CPLD interface, Flash memory are connected respectively, also be connected with the display unit interface, be connected with the computer communication interface by TXD2, RXD2 interface by TKDI, RXD1 interface.
CPLD is as the core of digital signal conversion in the system, the interface signal of roll-force signal, code device signal, switching value input/output signal and serial AD and DA all is connected with CPLD, in CPU, finish processing, conversion and interlocking, simultaneously these signals are converted to bus signals and CPU joins, the work that a plurality of chip is done before finishing, and can field programming.
The Flash memory is a nonvolatile memory, and the data of collection deposit in wherein, and no matter whether power down, and data all can not lost.
Claims (4)
1. the online steel rolling comprehensive parameter measuring of jobbing sheet-rolling mill instrument, it is characterized in that: it comprises left and right rolling force sensor, rotary encoder, display unit and parameter measurement circuit, and the rolling power sensor, rotary encoder, display unit all are connected with parameter measurement circuit respectively; Parameter measurement circuit comprises roll-force signal conversion circuit [1], code device signal isolation input circuit [2], switching value input circuit [3], relay output circuit [4] and central control circuit [5], and the structure and the connected mode of foregoing circuit are as follows:
A. roll-force signal conversion circuit [1], it comprises left roll-force, two groups of identical signal conversion circuits of right roll-force, every group of roll-force signal conversion circuit comprises sampling part, rating unit, shaping unit and out-coupling part, sampling part comprises resistance R 1, R2, W1, R3, operational amplifier OP1, the A/D converter, rating unit comprises operational amplifier OP2, the D/A converter, Zener diode D1, shaping unit comprises resistance R 4, capacitor C 1, phase inverter U1, out-coupling part is photoelectrical coupler DG1, their connected mode is: the resistance R 1 of sampling part, R2, W1 forms potential-divider network, R1 connects the output signal end of rolling force sensor, the dividing potential drop output of W1 meets R3, meet operational amplifier OP1 again, OP1 connects into the mode of follower, the in-phase end of the operational amplifier OP2 of its output termination rating unit, the output of the reverse termination D/A converter of OP2, also connect the negative pole of Zener diode D1 simultaneously, its plus earth, the output of OP2 is connected on the series connection contact of shaping unit R4 and C1, another termination power vd D of R4, the other end ground connection of C1, this contact connects the input of phase inverter U1 again, the input of its output termination photoelectrical coupler DG1, the output termination central control circuit of DG1, the output of the operational amplifier OP1 of sampling part is also received an input of A/D converter, the output termination central control circuit of A/D converter, another input of A/D converter is by the signal input of another group roll-force simultaneously;
B. code device signal is isolated input circuit [2], each rotary encoder is provided with the A phase, B is two groups of output pulses mutually, code device signal is isolated input circuit correspondence with it, the A phase signals is isolated the input circuit structure, it is by resistance R 5, R6, photoelectrical coupler DG2, capacitor C 2, U2 forms, the light emitting diode of photoelectrical coupler DG2 just, the A that the negative pole two ends connect rotary encoder respectively exports the A and the A end of pulse mutually, the colelctor electrode connecting resistance R6 of the phototriode of photoelectrical coupler DG2, electric capacity is attempted by between the collector and emitter, colelctor electrode output connects the input of U2, the output termination central control circuit [5] of U2, the grounded emitter of phototriode;
The structure that the B phase signals is isolated input circuit is mutually identical with A;
C. switching value input circuit [3], it is provided with a plurality of identical switching value input circuits, each circuit all is made up of photoelectrical coupler DG4, resistance R 7, R8, the light emitting diode negative pole of photoelectrical coupler DG4 connects external switch, the positive pole of light emitting diode meets power vd D through current-limiting resistance R7, load resistance R8 connects the colelctor electrode of phototriode, and colelctor electrode output is connected to KI1～KI4 of central control circuit CPLD, its grounded emitter;
D. relay output circuit [4], relay output circuit [4] is provided with the identical circuit of two line structures, is made up of photoelectrical coupler DG5, resistance R 9, diode D2 and relay J respectively.The light emitting diode negative pole of photoelectrical coupler DG5 meets the KO1 or the KO2 of central control circuit [5], positive pole meets power vd D through resistance R 9, the coil of electrical equipment J is succeeded in the colelctor electrode output of the phototriode of photoelectrical coupler, diode D2 is connected across the two ends of relay J, the grounded emitter of phototriode;
E. central control circuit [5], central control circuit [5] comprises single-chip microcomputer, the CPLD interface, the Flash memory, the display unit interface, the computer communication interface, the CPLD interface respectively with roll-force signal conversion circuit [1] output signal end, code device signal is isolated the output of input circuit [2], the output of switching value input circuit [3], the input of relay output circuit [4] is connected, single-chip microcomputer by bus respectively with the CPLD interface, the Flash memory is connected, also pass through TXDI, the EXD1 interface is connected with the display unit interface, passes through TXD2, the EXD2 interface is connected with the computer communication interface.
2. the online steel rolling comprehensive parameter measuring of jobbing sheet-rolling mill according to claim 1 instrument, it is characterized in that: described rotary encoder is provided with 4.
3. the online steel rolling comprehensive parameter measuring of jobbing sheet-rolling mill according to claim 2 instrument, it is characterized in that: described display unit is 1～8.
4. the online steel rolling comprehensive parameter measuring of jobbing sheet-rolling mill according to claim 3 instrument, it is characterized in that: described switching value input circuit is provided with 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268459 CN2561527Y (en) | 2002-07-25 | 2002-07-25 | Online rolling comprehensive parameters measuring instrument for medium plate mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268459 CN2561527Y (en) | 2002-07-25 | 2002-07-25 | Online rolling comprehensive parameters measuring instrument for medium plate mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2561527Y true CN2561527Y (en) | 2003-07-23 |
Family
ID=33733886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02268459 Expired - Fee Related CN2561527Y (en) | 2002-07-25 | 2002-07-25 | Online rolling comprehensive parameters measuring instrument for medium plate mills |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2561527Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959337A (en) * | 2017-05-03 | 2017-07-18 | 河南科技大学 | The open magnetic pumping damage of steel cable detecting system that declines of one kind |
| CN107168172A (en) * | 2017-06-09 | 2017-09-15 | 北京丹华昊博电力科技有限公司 | Switch acquisition device based on CPLD |
-
2002
- 2002-07-25 CN CN 02268459 patent/CN2561527Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959337A (en) * | 2017-05-03 | 2017-07-18 | 河南科技大学 | The open magnetic pumping damage of steel cable detecting system that declines of one kind |
| CN107168172A (en) * | 2017-06-09 | 2017-09-15 | 北京丹华昊博电力科技有限公司 | Switch acquisition device based on CPLD |
| CN107168172B (en) * | 2017-06-09 | 2020-06-30 | 北京丹华昊博电力科技有限公司 | Switching value acquisition device based on CPLD |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101231526B (en) | Distributed monitoring system for running state of induction machine | |
| CN201218822Y (en) | Electric energy quality on-line monitoring device | |
| CN101424942B (en) | Distribution detection device for orienting rail traffic safety assessment | |
| CN106199429A (en) | Motor on-Line Monitor Device and monitoring method thereof | |
| CN201489356U (en) | Servo driver of alternating current asynchronous motor | |
| CN201188045Y (en) | Portable apparatus for rapidly detecting a plurality of sensors | |
| CN2561527Y (en) | Online rolling comprehensive parameters measuring instrument for medium plate mills | |
| CN1928574A (en) | Traveling wave accidents distance measuring device for hour and minute composite sampling electric transmission line | |
| CN103336199B (en) | Device and method for predicting fault rate of totally-closed tube type busbar | |
| CN203178441U (en) | Module type on-line detector for high voltage switch | |
| CN206041638U (en) | Real -time supervision monitoring device of electric substation | |
| CN1583364A (en) | Grinding machine parameter testing and analytical system | |
| CN2629047Y (en) | Computer testing electric machine system | |
| CN1148566C (en) | Networked automatic reading-out method for water meter, kilowatt-hour meter and gas meter and its device | |
| CN1328586C (en) | Electric energy quality monitoring, recording and analyzing system | |
| CN2876848Y (en) | Real-time Industrial ethernet pressure transmitter | |
| CN2705264Y (en) | Computer auxiliary detector facing to grinding process optimum | |
| CN2768282Y (en) | Power distribution terminal | |
| CN208569374U (en) | A kind of road sweeper vehicle body sensor bus control system | |
| CN101246066A (en) | On-site torsion calibration device | |
| CN201034783Y (en) | On-site torque calibrating equipment | |
| CN2872498Y (en) | Data collecting and processing system for optical ion signal | |
| CN221550798U (en) | Insulation resistance induction electromotive force acquisition device for low-voltage bus insulation slot | |
| CN2867729Y (en) | Transmission interface switching equipment | |
| CN2876849Y (en) | Real-time industrial ethernet temp. transmitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |