CN202210222U - Universal electro-hydraulic position servo driver - Google Patents
Universal electro-hydraulic position servo driver Download PDFInfo
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- CN202210222U CN202210222U CN2011203758978U CN201120375897U CN202210222U CN 202210222 U CN202210222 U CN 202210222U CN 2011203758978 U CN2011203758978 U CN 2011203758978U CN 201120375897 U CN201120375897 U CN 201120375897U CN 202210222 U CN202210222 U CN 202210222U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
本实用新型涉及一种通用型电液位置伺服驱动器。目前的电液伺服系统驱动器主要采用分布式结构。本实用新型中SSI转换模块外接SSI位移传感器连接，用作驱动器对输入信号的前置处理，ARM7核心是驱动器的核心；操作面板是一个可视化交互式操作界面，主要由液晶显示、键盘输入和LED指示灯组成；串口电平转换模块为驱动器提供外部控制接口，计算机可以通过串口电平转换模块对伺服驱动器实现数据的实时通信和系统的精确控制；DA转换放大模块采用ARM7自身提供的DA模块，为伺服阀或者比例阀提供控制电信号；电源模块用于给驱动器各个模块提供电源。本实用新型集成化程度更高，并且操作方便，成本更低，有利于大范围地推广使用。
The utility model relates to a universal electro-hydraulic position servo driver. The current electro-hydraulic servo system drives mainly adopt a distributed structure. In the utility model, the SSI conversion module is connected with an external SSI displacement sensor, which is used as the pre-processing of the input signal by the driver. The ARM7 core is the core of the driver; the operation panel is a visual interactive operation interface, mainly composed of liquid crystal display, keyboard input and LED Composed of indicator lights; the serial port level conversion module provides an external control interface for the driver, and the computer can realize real-time communication of data and precise control of the system to the servo driver through the serial port level conversion module; the DA conversion and amplification module adopts the DA module provided by ARM7 itself, Provide control electrical signals for servo valves or proportional valves; the power module is used to provide power to each module of the driver. The utility model has the advantages of higher integration degree, convenient operation and lower cost, and is beneficial to popularize and use on a large scale.
Description
Technical field
The utility model belongs to electronic information technical field, relates to a kind of universal electro-hydraulic position servo driver.
Background technology
21 century Mo, the electrohydraulic servo system development rapidly, and is increasing in the effect of industrial control field performance.Electrohydraulic servo system is the feedback control system that a kind of electric device and hydraulic actuating mechanism combine, and modal have electro-hydraulic position servo system, electric liquid speed control system and an electric hydraulic control system.Electrohydraulic servo system as controlled quentity controlled variable, mainly solves the problem of following of controlled quentity controlled variable with the output quantity of topworks, under the prerequisite that guarantees enough accuracy, realizes the timely tracking of controlled quentity controlled variable to specified rate, so electrohydraulic servo system is claimed servomechanism again.Hydraulic actuating mechanism commonly used has hydraulic cylinder and oil motor.
Present electrohydraulic servo system driver mainly still adopts distributed frame, and concrete implementation has the integrated data collection and handles the industrial computer pattern of integrated circuit board and the single-chip microcomputer pattern of integrated high-speed high-precision AD chip.The weak point of these driver implementations is: one of which; The AD conversion precision of hydraulic cylinder displacement signal is limited, the Displacement Feedback of incompatible long stroke hydraulic cylinder, for example 16 Precision A chips; Reach 0.01mm Displacement Feedback precision, hydraulic cylinder travel can only be limited in the 600mm; Its two, the high precision of AD conversion and the requirement of high speed property make driver realize difficulty, satisfy the 1ms switching rate simultaneously and 16 above accuracy A D chips are also fewer, cost is higher; They are three years old; The employing distributed frame is built; Require the technician must have higher hardware and software basis, for example adopt the industrial computer pattern, then need technician's acquaint with data capture card and industrial computer programming application technology; For example adopt the single-chip microcomputer pattern, then need the technician to be familiar with SCM system hardware and software programming application technology.In sum, above not enough big limitations the Servo Drive The Application of Technology.Application number is 200710125448.6 patent servo controller; Through the closed-loop control unit; Driver element, the single-chip microcomputer setup unit has been realized the closed-loop control of servo-drive system, system operational parameters need be set through mcu programming; Increase layman's operation easier, be unfavorable for promoting the use of of servo controller.
Summary of the invention
The utility model purpose is to provide a kind of universal electro-hydraulic position servo driver.
The technical scheme that the utility model technical solution problem is adopted is:
Universal electro-hydraulic position servo driver comprises that SSI modular converter, ARM7 core, serial ports level switch module, DA change amplification module, power module and guidance panel.
The external SSI displacement transducer of described SSI modular converter connects, and as the pre-process of driver to input signal, the synchronous serial signal is converted into the asynchronous serial signal that driver can be handled.
Described ARM7 core is the core of driver, and it is used for the processing of input signal and produces the storage of exporting signal, systematic parameter.
Described guidance panel is a Visual Interactive operation interface; Mainly form by liquid crystal display, keyboard input and LED light; Liquid crystal display is used for the running status and the real-time parameter of display driver, and the handled easily personnel grasp the running status of system and carry out next step operation; Keyboard input makes things convenient for the user that the operational factor of the servo-drive system branch parameter of classifying is specifically set; LED light real-time prompting system running state.
Described serial ports level switch module is that driver provides external control interface, and computing machine can be realized the real-time Communication for Power of data and the accurate control of system to servo-driver through the serial ports level switch module.
The DA module that described DA conversion amplification module adopts ARM7 self to provide, the output signal is the 0-10v voltage signal of standard or the current signal of 4-20ma, for servo-valve or proportioning valve provide the control electric signal.
Described power module input power supply is supplied power by single-phase alternating current, and input voltage is 220V, and output dc voltage 3.3V and 24V are used for power supply to each module of driver being provided.
The utility model has following beneficial effect than prior art: compare the Traditional use analog-to-digital conversion module, the SSI module that is integrated in driver has improved the resolution of input signal, and resolution can reach 25 and be precision, and has reduced installation cost; The guidance panel of driver has made things convenient for the user to the setting of driver operational factor with check, and is simple to operation, intuitive display; The adding of serial ports level switch module has made things convenient for the expansion of communicating by letter of industrial control computer and driver and driver functions; Compare and realize the control of electro-hydraulic position servo system with programmable logic controller (PLC) and computer combined, the utility model is simpler, and integrated degree is higher, and easy to operate, and cost is lower, helps promoting the use of on a large scale.
Description of drawings
Fig. 1 is the driver interface arrangenent diagram;
Fig. 2 is the drive faceplate arrangenent diagram;
Fig. 3 is the drive system schematic diagram;
Among the figure: 1, LED light; 2, setup parameter; 3, real-time parameter; 4, button upwards; 5, operation button; 6, to knob down; 7, stop button; 8, alarm lamp; 9, mode conversion switch; 10, confirming button; 11, mode button.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of integrated-type driver that collects Displacement Feedback, PID computing and control output of one, its external interface that provides is following:
The SSI conversion module directly links to each other with external displacement SSI sensor, clock+ wherein, and clock-is a clock signal; Data+; Data-is a data-signal, and 24VDC, GND are that driver is the power interface that displacement transducer provides; The SSI conversion module is once exported 8 bit data, and sensor accuracy is more than 8 transmission several times.
DA conversion amplification module is integrated among the ARM7; Precision is 10; The output signal type is the 2-20ma current signal of standard or the voltage signal of 0-10V, and above-mentioned output signal directly is connected with servo-valve, can carry out servocontrol to hydraulic actuating mechanism through servo-valve.
The serial ports level switch module is used for the 3V WV that the 3.3V voltage signal that ARM7 is inner is converted into module, and the P0.0 of ARM7 is used for the transmission of serial data, and P0.1 is used for the reception of serial data, and the standard serial port data line of the output of module and 9 pins is connected.
Power module input power supply is supplied power by single-phase alternating current, and input voltage is 220V, and output dc voltage 3.3V and 24V are used for power supply to each module of driver being provided.
Guidance panel is made up of liquid crystal display, keyboard input and LED light three parts.The port P0.27-P1.22 of ARM7 connects LCD MODULE, and the word control signal and position control signal of charactron is provided, and the multidigit nixie tube of LCD MODULE and guidance panel is connected, and is used for the running status and the real-time parameter of display driver; 7 buttons on the keyboard load module attended operation panel, the control signal of respectively corresponding 7 buttons of the port P0.20-P0.26 of ARM7.The LED light module is used for the pilot lamp on the display operating panel by the port P1.23-P1.30 control of ARM7.
As shown in Figure 2, guidance panel provides a visual interactive operation interface to operating personnel, mainly is made up of liquid crystal display, keyboard input and LED light three parts:
Liquid-crystal display section is used for the setup parameter 2 and real-time parameter 3 of display driver, and setup parameter 2 comprises the starting position, final position etc.; Real-time parameter 3 comprises displacement, speed, acceleration etc.; Can switch to knob down 6 through the button 4 that makes progress between the different parameters.
Key input section comprises 6 buttons and a mode conversion switch 9.6 buttons are respectively: mode button 11, upwards button 4, operation button 5, stop button 7, to knob down 6, confirming button 10.Pattern selects button 11 to be used to select different setup parameters; Upwards button 4 shows a last setup parameter or carries out the value setting of parameter; Show next setup parameter or carry out the value setting of parameter to knob down 6; Confirming button 10 is used to confirm parameter of user; The parameter setting of operation button 5 excited users also drives driver, and when pressing operation button 5, driver is started working; Stop button 7 stops the operation of driver, and when pressing stop button 7, driver quits work; The operational mode that the operational mode of system model switch 9 conversion drivers, driver offer the user has automatically and manual two kinds;
The operational mode and the state of LED light 1 prompt system, system running pattern have automatically and manual two kinds, move and stop the running status that LED light is used to point out system, the direction of motion of forward and reverse LED light prompting hydraulic actuating mechanism.Alarm lamp 8 is used for the state of prompt system, and when system made mistakes, alarm lamp 8 was lighted, and driver is sounded a buzzer.
As shown in Figure 3, the system principle of driver is following:
At first, the user utilizes guidance panel that systematic parameter is set, and the user utilizes mode conversion switch (9) to select the driver operational mode, treat parameter setting after, press operation button (5), driver is started working.
Then; Driver utilizes 25 high-precision SSI displacement transducers to gather the actual displacement signal; The ARM7 core that output signal Pv gives driver, the theoretical displacement Sp of output signal Pv and automation curve generator or manually curve generator output compares generated error signal Er; The PID computing module of finishing in advance in the system is through the processing to error signal Er; Calculate to generate output signal PIDout, output signal PIDout need pass through the voltage U out or the current signal Iout of the standard that generates after the digital-to-analogue processing and amplifying, thereby driving mechanisms such as control servo-valve carry out real-time servocontrol to the position of topworkies such as hydraulic cylinder.
At last, the position signalling of topworks is again by the collection of SSI displacement transducer and get into Control Circulation next time.
Claims (1)
1. universal electro-hydraulic position servo driver comprises that SSI modular converter, ARM7 core, serial ports level switch module, DA change amplification module, power module and guidance panel, is characterized in that:
The external SSI displacement transducer of described SSI modular converter connects, and as the pre-process of driver to input signal, the synchronous serial signal is converted into the asynchronous serial signal that driver can be handled;
Described ARM7 core is the core of driver, and it is used for the processing of input signal and produces the storage of exporting signal, systematic parameter;
Described guidance panel is a Visual Interactive operation interface; Mainly form by liquid crystal display, keyboard input and LED light; Liquid crystal display is used for the running status and the real-time parameter of display driver, and the handled easily personnel grasp the running status of system and carry out next step operation; Keyboard input makes things convenient for the user that the operational factor of the servo-drive system branch parameter of classifying is specifically set; LED light real-time prompting system running state;
Described serial ports level switch module is that driver provides external control interface, and computing machine can be realized the real-time Communication for Power of data and the accurate control of system to servo-driver through the serial ports level switch module;
The DA module that described DA conversion amplification module adopts ARM7 self to provide, the output signal is the 0-10v voltage signal of standard or the current signal of 4-20ma, for servo-valve or proportioning valve provide the control electric signal;
Described power module input power supply is supplied power by single-phase alternating current, and input voltage is 220V, and output dc voltage 3.3V and 24V are used for power supply to each module of driver being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203758978U CN202210222U (en) | 2011-09-28 | 2011-09-28 | Universal electro-hydraulic position servo driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203758978U CN202210222U (en) | 2011-09-28 | 2011-09-28 | Universal electro-hydraulic position servo driver |
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| Publication Number | Publication Date |
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| CN202210222U true CN202210222U (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203758978U Expired - Lifetime CN202210222U (en) | 2011-09-28 | 2011-09-28 | Universal electro-hydraulic position servo driver |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436196A (en) * | 2011-09-28 | 2012-05-02 | 杭州电子科技大学 | Universal electro-hydraulic position servo driver |
| CN105464516A (en) * | 2016-01-14 | 2016-04-06 | 徐州大亚智能科技有限公司 | Electro-hydraulic servo window controller |
| CN114527639A (en) * | 2022-01-25 | 2022-05-24 | 江苏恒立液压科技有限公司 | Control method and device of electro-hydraulic servo driver |
-
2011
- 2011-09-28 CN CN2011203758978U patent/CN202210222U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436196A (en) * | 2011-09-28 | 2012-05-02 | 杭州电子科技大学 | Universal electro-hydraulic position servo driver |
| CN105464516A (en) * | 2016-01-14 | 2016-04-06 | 徐州大亚智能科技有限公司 | Electro-hydraulic servo window controller |
| CN114527639A (en) * | 2022-01-25 | 2022-05-24 | 江苏恒立液压科技有限公司 | Control method and device of electro-hydraulic servo driver |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120502 Effective date of abandoning: 20131106 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120502 Effective date of abandoning: 20131106 |
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| RGAV | Abandon patent right to avoid regrant |