CN216867170U - Visual touch system of servo hydraulic power unit of testing machine - Google Patents
Visual touch system of servo hydraulic power unit of testing machine Download PDFInfo
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- CN216867170U CN216867170U CN202220304685.9U CN202220304685U CN216867170U CN 216867170 U CN216867170 U CN 216867170U CN 202220304685 U CN202220304685 U CN 202220304685U CN 216867170 U CN216867170 U CN 216867170U
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Abstract
The utility model discloses a visual touch system of a servo hydraulic pump station of a testing machine, and relates to the technical field of hydraulic control. The testing machine comprises a touch screen, a programmable controller, a testing machine hydraulic system, an analog input module and a digital input/output module, wherein the touch screen is electrically connected with the programmable controller, the programmable controller is electrically connected with the testing machine hydraulic system through an analog output transmission block, an analog input module and a digital input/output module which are connected with the programmable controller, and the analog output transmission block is electrically connected with a variable frequency speed regulator, a variable frequency motor and a hydraulic oil pump. The utility model realizes the real-time monitoring and control of the rotating speed, the pressure, the oil temperature, the oil filter pollution condition and the alarm condition of the variable frequency motor of the whole servo hydraulic pump station by the combined use of the touch screen and the PLC, effectively simplifies the operation control difficulty of the servo hydraulic pump station and ensures that the energy-saving effect of the pump station is more obvious.
Description
Technical Field
The utility model relates to the technical field of hydraulic control, in particular to a visual touch system of a servo hydraulic pump station of a testing machine, which is particularly suitable for visual monitoring, remote speed regulation and pressure regulation control of a multi-pump combined servo hydraulic pump station of a horizontal tensile testing machine.
Background
The control and monitoring mode of the servo hydraulic pump station configured by the testing machine at present mainly depends on various relays, contactors, switches, contacts, instruments, indicator lamps and the like to realize the start-stop control function according to specific logic relation combination, and particularly for the combined servo hydraulic pump station of a plurality of oil pump motors, if the control structure is realized by using the traditional control structure, the structure of the control system is complex, the installation and implementation are difficult, the system safety is poor, the instruments and the operation parts needing to be monitored are many, and the operation and monitoring difficulty of operators is greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a visual touch system of a servo hydraulic pump station of a testing machine, which realizes real-time monitoring and control of the rotating speed, pressure, oil temperature, oil filter pollution condition and alarm condition of a variable frequency motor of the whole servo hydraulic pump station by the combined use of a touch screen and a PLC (programmable logic controller), effectively simplifies the operation control difficulty of the servo hydraulic pump station, and enables the energy-saving effect of the pump station to be more remarkable so as to solve the problems in the background technology.
The utility model specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a visual touch-control system of servo hydraulic power unit of testing machine, includes touch-sensitive screen 101, programmable controller 102, still includes testing machine hydraulic system 107, analog input module 108 and digital input/output module 109, touch-sensitive screen 101 and programmable controller 102 electric connection, programmable controller 102 through the analog output input block 103, analog input module 108 and digital input/output module 109 and testing machine hydraulic system 107 electric connection that connect on it, analog output input block 103 is through variable frequency speed regulator 104, inverter motor 105 and hydraulic oil pump 106 electric connection.
The analog quantity output transmission block 103 is connected with a variable frequency speed regulator 104, the variable frequency speed regulator 104 is connected with a variable frequency motor 105, and the variable frequency motor 105 is connected with a hydraulic oil pump 106.
The tester hydraulic system 107 comprises a proportional overflow valve, a pressure sensor, a temperature sensor, a liquid level sensor, an oil filter and an indicator light.
And a proportional overflow valve of the hydraulic system 107 of the testing machine is electrically connected with the analog output transmission block 103.
The pressure sensor, the temperature sensor and the liquid level sensor of the testing machine hydraulic system 107 are all electrically connected with the analog input module 108.
The oil filter and the indicator light of the tester hydraulic system 107 are electrically connected with the digital input/output module 109.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
the utility model simplifies the structure of the measurement and control system, improves the safety and operability of the system and realizes the control and monitoring of the remote start and stop of the servo hydraulic pump station, the rotation speed regulation of the variable frequency motor, the remote pressure regulation, the oil temperature, the oil filter pollution monitoring, the alarm condition and the like by the combined use of the touch screen and the PLC. An operator completes the control of starting and stopping of each oil pump of the servo hydraulic pump station, system flow regulation, system pressure regulation and the like through the remote operation of the touch screen; the touch screen interface is used for observing important system parameters such as system pressure, oil temperature, oil tank liquid level, variable frequency motor rotating speed and the like of the servo hydraulic pump station in real time, and the pollution condition of the oil in the servo hydraulic pump station can be monitored. The operation control difficulty of the servo hydraulic pump station is effectively simplified, and the energy-saving effect of the pump station is more remarkable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram of the I/O wiring of the present invention;
shown in the figure: a touch screen 101; a programmable controller 102; an analog quantity output block 103; a variable frequency governor 104; a variable frequency motor 105; a hydraulic oil pump 106; the tester hydraulic system 107; an analog input module 108; a digital quantity input/output module 109.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-2, the embodiment provides a visual touch system of a tester servo hydraulic pump station, which includes a touch screen 101, a siemens S7-200SMART CPUSR30 programmable controller 102, an EM AQ02 analog quantity output and input block 103, a variable frequency speed regulator 104, a variable frequency motor 105, a hydraulic oil pump 106, a tester hydraulic system 107, an EM AE04 analog quantity input module 108, and an EM DR32 digital quantity input/output module 109, where the tester hydraulic system 107 includes a pilot type proportional overflow valve, a pressure sensor, a temperature sensor, a liquid level sensor, an oil filter (with a transmitter), and an indicator light (alarm). The touch screen 101 is electrically connected with the programmable controller 102, the programmable controller 102 is electrically connected with the testing machine hydraulic system 107 through an analog output and output block 103, an analog input module 108 and a digital input/output module 109 which are connected with the programmable controller 102, and the analog output and output block 103 is electrically connected with the hydraulic oil pump 106 through a variable frequency speed regulator 104 and a variable frequency motor 105. The analog output transmission block 103 is connected with a variable frequency speed regulator 104, the variable frequency speed regulator 104 is connected with a variable frequency motor 105, and the variable frequency motor 105 is connected with a hydraulic oil pump 106. And a proportional overflow valve of the hydraulic system 107 of the testing machine is electrically connected with the analog output and input block 103. And a pressure sensor, a temperature sensor and a liquid level sensor of the hydraulic system 107 of the testing machine are electrically connected with the analog input module 108. The oil filter and the indicator light of the tester hydraulic system 107 are electrically connected with the digital input/output module 109.
An operator completes the control of starting and stopping of the hydraulic oil pump 106 of the testing machine servo hydraulic pump station, system flow regulation, system pressure regulation and the like through the remote operation of the touch screen 101; important parameters such as system pressure, oil temperature, oil tank liquid level, variable frequency motor rotating speed and the like can be observed in real time through a display window of an operation interface of the touch screen 101, the pollution condition of each oil filter in the system can be monitored, and the oil cleanness of a hydraulic system 107 is guaranteed.
The system flow regulation is realized by controlling a Siemens S7-200SMART CPUSR30 Programmable Logic Controller (PLC)102 and regulating the rotating speed of an oil pump variable frequency motor 105 by using a variable frequency speed regulator 104. According to the hydraulic flow demand of the working condition of the testing machine, an operator directly changes the rotating speed of the variable frequency motor 105 through an operation interface button of the touch screen 101 in real time, and then adjusts the output flow of the hydraulic oil pump 106 connected with the variable frequency motor. The touch screen 101 inputs an instruction and sends the instruction to the PLC 102, and the PLC 102 controls the EM AQ02 analog quantity output block 103 to output the rated revolution voltage value required by the variable frequency speed regulator 104 to control the revolution speed of the motor 105 through the instruction, thereby achieving the purpose of controlling the output flow of the oil pump 106.
The system pressure regulation of the utility model is that the PLC 102 commands the EM AQ02 analog output input block 103 to regulate the voltage signal output to the proportional amplifier of the pilot-operated proportional relief valve, and the proportional amplifier regulates the current signal output to the proportional electromagnet according to the change of the input voltage signal, thereby controlling the electromagnetic force of the proportional electromagnet and further realizing the stepless regulation of the system pressure.
According to the utility model, through the operation of the touch screen 101, an instruction is sent to the PLC 102, and the motor 105 is controlled to drag each switching value in the circuit through the switching value logic control function of the control program in the PLC 102, so that the starting and stopping of each motor 105 are realized; the system data measured in real time are converted into analog quantity input signals or digital quantity input signals through a pressure sensor, a temperature sensor, a liquid level sensor, a transmitter of each oil filter and the like arranged in a hydraulic system 107 of the testing machine, the input voltage/current signals are communicated with the touch screen 101 through an EM AE04 analog quantity input module 108 and an EM DR32 digital quantity input/output module 109, and system pressure, oil temperature, liquid level height and oil filter pollution signals of a pump station are displayed on a monitoring window of the touch screen 101, so that real-time monitoring on the system oil pressure, oil temperature, liquid level and pollution conditions is realized.
When the testing machine works, the output pressure and the output flow of the servo hydraulic pump station of the testing machine can be automatically controlled by a program of the PLC 102 according to different testing modes, the remote control on the servo hydraulic pump station of the testing machine can be completed only by an operation interface of the touch screen 101, the required hydraulic flow and pressure are provided according to the actual working requirement of the testing machine, the hydraulic energy loss generated by overflow under the condition of constant pressure and constant flow is avoided, the heating condition of a hydraulic system is reduced, the system power is reduced, and the aims of energy conservation, speed regulation and low heating value are achieved.
Claims (6)
1. The utility model provides a visual touch-control system of servo hydraulic power unit of testing machine, includes touch-sensitive screen (101), programmable controller (102), its characterized in that, still includes testing machine hydraulic system (107), analog input module (108) and digital input/output module (109), touch-sensitive screen (101) and programmable controller (102) electric connection, analog output defeated piece (103), analog input module (108) and digital input/output module (109) and testing machine hydraulic system (107) electric connection that programmable controller (102) connected through it, analog output defeated piece (103) are through frequency conversion speed regulator (104), inverter motor (105) and hydraulic oil pump (106) electric connection.
2. The visual touch system of the testing machine servo hydraulic pump station according to claim 1, characterized in that: the analog quantity output transmission block (103) is connected with a variable frequency speed regulator (104), the variable frequency speed regulator (104) is connected with a variable frequency motor (105), and the variable frequency motor (105) is connected with a hydraulic oil pump (106).
3. The visual touch system of the testing machine servo hydraulic pump station according to claim 1, characterized in that: the tester hydraulic system (107) comprises a proportional overflow valve, a pressure sensor, a temperature sensor, a liquid level sensor, an oil filter and an indicator light.
4. The visual touch system of the testing machine servo hydraulic pump station according to claim 3, characterized in that: and a proportional overflow valve of the hydraulic system (107) of the testing machine is electrically connected with the analog output transmission block (103).
5. The visual touch system of the testing machine servo hydraulic pump station according to claim 3, characterized in that: and a pressure sensor, a temperature sensor and a liquid level sensor of the hydraulic system (107) of the testing machine are electrically connected with the analog input module (108).
6. The visual touch system of the testing machine servo hydraulic pump station according to claim 3, characterized in that: an oil filter and an indicator light of the hydraulic system (107) of the testing machine are electrically connected with the digital input/output module (109).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220304685.9U CN216867170U (en) | 2022-02-15 | 2022-02-15 | Visual touch system of servo hydraulic power unit of testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220304685.9U CN216867170U (en) | 2022-02-15 | 2022-02-15 | Visual touch system of servo hydraulic power unit of testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216867170U true CN216867170U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220304685.9U Active CN216867170U (en) | 2022-02-15 | 2022-02-15 | Visual touch system of servo hydraulic power unit of testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216867170U (en) |
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2022
- 2022-02-15 CN CN202220304685.9U patent/CN216867170U/en active Active
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