CN209471370U - A kind of steel rail static bending testing machine detecting and controlling system - Google Patents
A kind of steel rail static bending testing machine detecting and controlling system Download PDFInfo
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- CN209471370U CN209471370U CN201920593045.2U CN201920593045U CN209471370U CN 209471370 U CN209471370 U CN 209471370U CN 201920593045 U CN201920593045 U CN 201920593045U CN 209471370 U CN209471370 U CN 209471370U
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- static bending
- testing machine
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Abstract
The utility model discloses a kind of steel rail static bending testing machine detecting and controlling systems, including terminal device, data acquisition control adapter and HYDRAULIC CONTROL SYSTEM unit, the data acquisition control adapter includes PLC main control unit and analog input/output unit expanding element, real-time data communication is carried out using USB interface between the terminal device and PLC main control unit, open/stop control driver, control rail elevating ram and the hoistable platform rise/fall that the output switch parameter node of the PLC main control unit is separately connected Oil pump electrical machinery control driver；The analog input expanding element is separately connected the signal output end of pressure transmitter, displacement transducer, and analog output unit is separately connected the proportional pressure control valve amplifier of HYDRAULIC CONTROL SYSTEM unit, proportional reversing valve amplifier.Steel rail static bending test, complete machine calibration process are reliably controlled using computer+PLC control mode, eliminate data collecting card in hardware, input/output point isolation and with external condition matching degree height.
Description
Technical field
The utility model relates to a kind of steel rail static bending testing machine Data Detection and control systems.
Background technique
Steel rail static bending testing machine is one of the special purpose test equipment for examining Long rail welding quality.Suitable for 50kg/m,
Flash welding, exothermic welding, the gas pressure welding welding point of the various rail heavy rails such as 60kg/m, 75kg/m carry out quiet curved ruggedness test.Steel
The quiet curved testing machine of rail is mainly made of three parts such as host, hydraulic system, COMPUTER DETECTION recording control systems.Its course of work
Are as follows: steel rail weld joint test specimen is put into safety device, and computer-controlled hydraulic system determines test specimen position by auxiliary oil cylinder
It sets and passes through master cylinder and loaded to test specimen, the stress and deformation of test specimen are changed into electricity by pressure transmitter and displacement transducer
Signal carries out data acquisition by PLC and data communication is sent into computer, carries out data processing, display, record by computer
And printing.
Therefore, in order to be better achieved in the quiet curved test of steel rail static bending testing machine and complete machine calibration process to the work of testing machine
Make state reliably to be controlled and test data is processed and displayed, the design of control system is vital.In
State's utility model patent proposes " a kind of steel rail static bender measure and control device " (patent No. 201220093409.9), is counted using industry
Calculation machine and data collecting card carry out the data acquisition and control of quiet curved experiment, and function has limitation, cannot detect and show
The working condition of entire oil pump station, and have the shortcomings that reliability is low, at high cost using servo-system.
Utility model content
The utility model is in view of the shortcomings of the prior art, propose a kind of steel rail static bending testing machine detecting and controlling system, using meter
Calculation machine+PLC control mode reliably controls steel rail static bending test, complete machine calibration process by mouse or keyboard operation.
The technical solution adopted in the utility model:
A kind of steel rail static bending testing machine detecting and controlling system, including terminal device, data acquisition control adapter and liquid
System control unit is pressed, the data acquisition control adapter includes that PLC main control unit and analog input/output unit expand
Unit is opened up, real-time data communication, the PLC main control unit are carried out using USB interface between the terminal device and PLC main control unit
Output switch parameter node be separately connected Oil pump electrical machinery open/stop control driver, control rail elevating ram and hoistable platform
Rise/fall controls driver；The analog input expanding element is separately connected the signal of pressure transmitter, displacement transducer
Output end；The PLC analog output unit is separately connected proportional pressure control valve amplifier, proportional reversing valve amplifier；The liquid
Pressure system control unit include Oil pump electrical machinery open/stop control, rail elevating ram rise/fall control, hoistable platform
Rise/fall control, the load/unload control of master cylinder and hydraulic oil cooler control.
The On-off signal node of the PLC main control unit is separately connected oil pump and opens/stop, loads, unloads button, to realize
It is detached from terminal device and moving control function is carried out to quiet bender host；The On-off signal node of the PLC main control unit is distinguished
Connection rail lifting process is in place, rail lifting backhaul feedback signal in place and hoistable platform rising button and decline presses
Button.
The output switch parameter node of the PLC main control unit is separately connected oil pump start and stop instruction, load indicates, unloading refers to
Show, communication state indicates and hydraulic oil pumping plant high-pressure filter alarm signal, return oil filter alarm signal, high oil temperature report
Alert signal, the too low alarm signal of oil temperature, the too low alarm signal of hydraulic oil level and hydraulic oil cooler signal.
The steel rail static bending testing machine detecting and controlling system will be with hydraulic oil in order to improve the reliability of whole system
Pumping plant controls relevant control signal and accesses control cabinet by cable, and setting in the control cabinet: control oil pump station motor opens/stops
A.C. contactor, control the solid-state relay of solenoid directional control valve and air cooler, regulated power supply, external ac power source access
In this control cabinet, each control node for being output to from this control cabinet in hydraulic oil pumping plant.
Terminal device uses industrial computer, Windows7 and the above operating system, passes through USB interface and data acquisition control
Adapter connection；The data acquisition control adapter includes linear stabilized power supply.
Utility model the utility model has the advantages that
1, the utility model steel rail static bending testing machine detecting and controlling system, using computer+PLC control mode, the two it
Between order, state and data exchange carried out by USB communication interface.By mouse or keyboard operation, to quiet curved test, complete machine mark
Determine process reliably to be controlled, data management, printing and importing/export are carried out to test data by background data base.
2, the utility model steel rail static bending testing machine control system eliminates data collecting card in hardware, using high-performance
PLC and Computer Data Communication mode carry out the transmission of test data and various control commands.It is using the advantages of PLC: reliable
Property high, input/output point isolation and high with external condition matching degree, do not need in addition to develop input/output signal conditioning plate.
3, the utility model steel rail static bending testing machine control system, not only to various solenoid valves, the ratio on hydraulic oil pumping plant
Example valve is controlled, and also monitors and show the working condition of entire hydraulic oil pumping plant.
Detailed description of the invention
Fig. 1 is the utility model steel rail static bending testing machine control system functional block diagram；
Fig. 2 is the utility model steel rail static bending testing machine control system governor circuit schematic diagram.
Specific embodiment
Below by specific embodiment, technical solutions of the utility model are described in further detail.Following reality
It applies example and is merely to illustrate the utility model, the restriction to scope of protection of the utility model should not be constituted.
Embodiment 1
Referring to Fig. 1, Fig. 2, the utility model steel rail static bending testing machine detecting and controlling system, including terminal device, data are adopted
Collection control adapter and HYDRAULIC CONTROL SYSTEM unit.The data acquisition control adapter includes PLC main control unit and mould
Analog quantity input/output expanding element, the terminal device are industrial computer, are carried out using USB interface and PLC main control unit real
When data communication；The PLC analog input expanding element is separately connected the signal output of pressure transmitter, displacement transducer
End；The PLC analog output unit is separately connected proportional pressure control valve amplifier and proportional reversing valve amplifier to be tested
When master cylinder thrust output control and commutation and speed control；The output switch parameter node of the PLC main control unit connects respectively
Connect Oil pump electrical machinery opens/stops drive control device, rail elevating ram drive control device, hoistable platform rise/fall and hydraulic oil
Cooler drive control device；The HYDRAULIC CONTROL SYSTEM unit include the opening/stop of Oil pump electrical machinery, the rising of rail elevating ram/
Decline control, the rise/fall control of hoistable platform, the load/unload control of master cylinder and hydraulic oil cooler control.
Embodiment 2
Referring to Fig. 1, Fig. 2, the steel rail static bending testing machine detecting and controlling system of the present embodiment and the difference of embodiment 1
Be: further, the On-off signal node of the PLC main control unit is separately connected oil pump and opens/stop, loads, unloads button,
To realize that being detached from terminal device carries out moving control function to quiet bender host；The On-off signal section of the PLC main control unit
Point be separately connected rail lifting process in place, rail lifting backhaul feedback signal, hoistable platform rising button and decline in place
Control button and hydraulic oil cooler start-up and shut-down control.
The utility model steel rail static bending testing machine detecting and controlling system, the output switch parameter node of the PLC main control unit
It is separately connected oil pump start and stop instruction, load instruction, unloading instruction, communication state instruction and hydraulic oil pumping plant high-pressure filter report
Alert signal, return oil filter alarm signal, high oil temperature alarm signal, the too low alarm signal of oil temperature, the too low alarm of hydraulic oil level
Signal and hydraulic oil cooler signal.
Embodiment 3
The steel rail static bending testing machine detecting and controlling system and embodiment 1, embodiment 2 of the present embodiment the difference is that:
The terminal device use industrial computer, Windows7 and the above operating system, the industrial computer by USB interface with
The connection of data acquisition control adapter；The data acquisition control adapter is expanded by PLC main control unit, analog input/output
Open up unit and linear stabilized power supply composition.Main control unit includes that 16 input points and 16 output points, this system use switch
Amount input node 11, output switch parameter node 10；Analog input/output expanding element for acquiring two-way simulation in real time
Amount exports two-way analog quantity to two proportional valve amplifiers in real time.
The utility model steel rail static bending testing machine detecting and controlling system will be with oil in order to improve the reliability of whole system
Pumping plant controls relevant control signal section and accesses control cabinet.Hardware in the control cabinet includes: control oil pump station motor opens/stops
A.C. contactor, control the solid-state relay of solenoid directional control valve and air cooler, regulated power supply, external ac power source access
In this control cabinet, each control node for being output to from this control cabinet in hydraulic oil pumping plant.
The utility model steel rail static bending testing machine detecting and controlling system is using the advantages of PLC: high reliablity, input/defeated
Egress electrical isolation and high with external condition matching degree, does not need in addition to develop input/output signal conditioning plate.
Two-way analog input, is separately connected pressure transmitter and displacement transducer.The output signal of pressure transmitter is 0
~5VDC, corresponding pressure limit are 0~35MPa, and there are two types of purposes after plc data is handled, first, the load during test
Charge values are shown；Second, forming closed-loop control with proportional pressure control valve amplifier, pass through PID tune according to the different loading speeds of setting
Section mode real-time control proportional pressure control valve is loaded to control hydraulic system by load value-time value curve of setting；Displacement becomes
The output signal for sending device is 0~5VDC, and corresponding change in displacement range is 0~200mm, there are two types of purposes after the acquisition of this data,
First, displacement (amount of deflection) value during test is shown；Second, closed-loop control is formed with proportional reversing valve amplifier, according to setting
Fixed different loading velocities are by PID regulative mode real-time control proportional reversing valve, to control hydraulic system by the position of setting
Shifting value-time value curve load.
Two-way analog output.Output pressure is adjusted: being changed according to the input signal of pressure transmitter and is tested and calibrate
Requirement under different situations to hydraulic system output pressure in the process exports the analog signal to ratio using PID regulative mode
Overflow valve amplifier constitutes the closed-loop control of comparative example overflow valve with proportional pressure control valve amplifier.Outbound course and flow are adjusted:
According to the input signal of displacement transducer change and test and calibration process under different situations to hydraulic system output flow and
The requirement of outbound course exports the analog signal using PID regulative mode and gives proportional reversing valve amplifier, puts with proportional reversing valve
Big device constitutes the closed-loop control of comparative example overflow valve.
The utility model steel rail static bending machine testing control system, not only to the various solenoid valves on hydraulic oil pumping plant, ratio
Valve is controlled, and also detects and show the working condition of entire oil pump station.
Steel rail static bending machine testing Control System Software includes COMPUTER DETECTION control software and PLC control software two parts.
Therebetween order, state and data exchange are carried out by USB communication interface, and in steel rail static bending test and complete machine calibration process
In test data is processed and displayed, the working condition of testing machine is reliably controlled.
Computer control software sends out control command various the main contents include: a and gives slave computer (PLC)；B receives slave computer
(PLC) order executive condition, various status informations and the test data information uploaded；C data processing simultaneously shows test data；d
Database management function.
PLC control software the main contents include: a to receive the various orders and parameter that host computer is sent；B executes host computer hair
The various orders that come and to host computer feedback command executive condition and various status informations；C acquires pressure and shift transmission in real time
The output voltage signal of device；D digital filtering and data processing；E returns to the simulation of the two-way after data processing to host computer in real time
Measure data；F passes through PID control proportional pressure control valve and proportional reversing valve amplifier.
Claims (5)
1. a kind of steel rail static bending testing machine detecting and controlling system, including terminal device, data acquisition control adapter and hydraulic
System control unit, it is characterised in that: the data acquisition control adapter include PLC main control unit and analog input/
Output unit expanding element carries out real-time data communication using USB interface between the terminal device and PLC main control unit, described
The output switch parameter node of PLC main control unit is separately connected opening/stop control driver, controlling rail elevating ram for Oil pump electrical machinery
Driver is controlled with hoistable platform rise/fall；The analog input expanding element is separately connected pressure transmitter, displacement becomes
Send the signal output end of device；The PLC analog output unit is separately connected proportional pressure control valve amplifier, proportional reversing valve amplification
Device；The HYDRAULIC CONTROL SYSTEM unit includes opening/stop control, the rise/fall control of rail elevating ram, rising for Oil pump electrical machinery
The rise/fall control of platform, the load/unload control of master cylinder and hydraulic oil cooler control are dropped.
2. steel rail static bending testing machine detecting and controlling system according to claim 1, it is characterised in that: the PLC master control list
The On-off signal node of member is separately connected oil pump and opens/stop, loads, unloads button, is detached from terminal device to quiet bender to realize
Host carries out moving control function；The On-off signal node of the PLC main control unit be separately connected rail lifting process in place,
Rail lifts backhaul feedback signal in place and hoistable platform rising button and declines button.
3. steel rail static bending testing machine detecting and controlling system according to claim 1 or 2, it is characterised in that: the PLC master control
The output switch parameter node of unit is separately connected oil pump start and stop instruction, load instruction, unloading instruction, communication state instruction and liquid
Pressure oil pumping plant high-pressure filter alarm signal, return oil filter alarm signal, high oil temperature alarm signal, the too low alarm signal of oil temperature
Number, the too low alarm signal of hydraulic oil level and hydraulic oil cooler signal.
4. steel rail static bending testing machine detecting and controlling system according to claim 3, it is characterised in that: in order to improve entire system
Control signal relevant to the control of hydraulic oil pumping plant by cable is accessed control cabinet, set in the control cabinet by the reliability of system
Set: the A.C. contactor that control oil pump station motor opens/stops controls the solid-state relay of solenoid directional control valve and air cooler, surely
Voltage source, external ac power source access in this control cabinet, each control node being output in hydraulic oil pumping plant from this control cabinet.
5. steel rail static bending testing machine detecting and controlling system according to claim 1 or 2, it is characterised in that: the terminal is set
It is standby to use industrial computer, Windows7 and the above operating system, it is connect by USB interface with data acquisition control adapter；Institute
Stating data acquisition control adapter includes linear stabilized power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593045.2U CN209471370U (en) | 2019-04-28 | 2019-04-28 | A kind of steel rail static bending testing machine detecting and controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593045.2U CN209471370U (en) | 2019-04-28 | 2019-04-28 | A kind of steel rail static bending testing machine detecting and controlling system |
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| Publication Number | Publication Date |
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| CN209471370U true CN209471370U (en) | 2019-10-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365327A (en) * | 2020-03-03 | 2020-07-03 | 农业农村部南京农业机械化研究所 | Monitoring and control system of tractor intelligence output interface |
| CN113204228A (en) * | 2021-04-29 | 2021-08-03 | 无锡建仪仪器机械有限公司 | Pressure tester control system and method with data remote transmission function |
-
2019
- 2019-04-28 CN CN201920593045.2U patent/CN209471370U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365327A (en) * | 2020-03-03 | 2020-07-03 | 农业农村部南京农业机械化研究所 | Monitoring and control system of tractor intelligence output interface |
| CN113204228A (en) * | 2021-04-29 | 2021-08-03 | 无锡建仪仪器机械有限公司 | Pressure tester control system and method with data remote transmission function |
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