CN209875616U - Hydraulic servo control equipment - Google Patents
Hydraulic servo control equipment Download PDFInfo
- Publication number
- CN209875616U CN209875616U CN201822174349.3U CN201822174349U CN209875616U CN 209875616 U CN209875616 U CN 209875616U CN 201822174349 U CN201822174349 U CN 201822174349U CN 209875616 U CN209875616 U CN 209875616U
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- amplifying circuit
- microcontroller
- hydraulic
- servo control
- 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.)
- Active
Links
Abstract
The utility model discloses a hydraulic servo control device, which comprises an upper computer and a lower computer, wherein the lower computer comprises a microcontroller, a digital-to-analog converter, an analog-to-digital converter, an input amplifying circuit and an output amplifying circuit; the upper computer is electrically connected with the microcontroller, the microcontroller is electrically connected with the output amplifying circuit through the digital-to-analog converter, the output amplifying circuit is electrically connected with the hydraulic execution element, the feedback sensor is electrically connected with the input amplifying circuit, and the input amplifying circuit is electrically connected with the microcontroller through the digital-to-analog converter. The output amplifying circuit is electrically connected with the hydraulic actuating element through a U/I converter or a PWM driver. The utility model provides a hydraulic pressure servo control equipment has that control algorithm is simple, the high technological effect of quality stability.
Description
Technical Field
The utility model relates to a servo controller technical field, concretely relates to hydraulic servo control equipment.
Background
The electro-hydraulic servo control technology is firstly generated in the united states and is then rapidly popularized in the industry due to fast response and high precision. The electro-hydraulic servo control system is a control mode which takes a hydraulic power element as an actuating mechanism and enables the output of the system to follow a given signal according to a negative feedback principle. It not only can automatically, accurately and quickly reproduce the change rule of input signal, but also can change and amplify input quantity.
In the late 70 s to the early 80 s, the development of computer technology lays a foundation for the combination of electronic technology and hydraulic technology. And then the computer control is applied to the electro-hydraulic servo system, so that the realization of a complex control strategy becomes possible. The current common practice in the market is to control the hydraulic power system by an industrial personal computer, and the defects of the method are as follows: the method is time-consuming and labor-consuming, the algorithm of the industrial personal computer is complex, the quality of the algorithm is different from person to person, the effect of the hardware configuration of the same hydraulic servo system is different, and the quality of the hydraulic servo system is different.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a hydraulic servo control equipment, solve among the prior art hydraulic servo control equipment algorithm complicated, the technical problem that the quality can't be guaranteed.
In order to achieve the technical purpose, the technical solution of the present invention provides a hydraulic servo control device, which includes an upper computer and a lower computer, wherein the lower computer includes a microcontroller, a digital-to-analog converter, an analog-to-digital converter, an input amplifying circuit and an output amplifying circuit;
the upper computer is electrically connected with the microcontroller, the microcontroller is electrically connected with the output amplifying circuit through the digital-to-analog converter, the output amplifying circuit is electrically connected with the hydraulic execution element, the feedback sensor is electrically connected with the input amplifying circuit, the input amplifying circuit is electrically connected with the microcontroller through the digital-to-analog converter, and the feedback transmission controller is arranged on the hydraulic execution element.
Compared with the prior art, the beneficial effects of the utility model include: the utility model discloses a microcontroller replaces traditional industrial computer, and microcontroller's control algorithm is simple, easily control, and labour saving and time saving can also guarantee hydraulic servo control equipment's stability of quality. Meanwhile, the microcontroller is adopted to realize hydraulic servo control, and the hydraulic servo control system also has the effects of high control precision and high effect speed.
Drawings
Fig. 1 is a schematic circuit diagram of a hydraulic servo control device provided by the present invention.
Reference numerals:
1. the device comprises an upper computer, 11, an industrial personal computer, 12, a display, 13, a mouse, 14, a keyboard, 15, a board card, 2, a lower computer, 21, a microcontroller, 22, a digital-to-analog converter, 23, an analog-to-digital converter, 24, an input amplifying circuit, 25, an output amplifying circuit, 26, an adapter, 3, a hydraulic execution element, 4 and a feedback sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in fig. 1, embodiment 1 of the present invention provides a hydraulic servo control device, which includes an upper computer 1 and a lower computer 2, where the lower computer 2 includes a microcontroller 21, a digital-to-analog converter 22, an analog-to-digital converter 23, an input amplification circuit 24, and an output amplification circuit 25;
the upper computer 1 is electrically connected with the microcontroller 21, the microcontroller 21 is electrically connected with the output amplifying circuit 25 through the digital-to-analog converter 22, the output amplifying circuit 25 is electrically connected with the hydraulic execution element 3, the feedback sensor 4 is electrically connected with the input amplifying circuit 24, the input amplifying circuit 24 is electrically connected with the microcontroller 21 through the analog-to-digital converter 23, and the feedback transmission controller 4 is arranged on the hydraulic execution element 3.
The utility model discloses a host computer 1 provides the human-computer interaction function, and host computer 1 carries out the communication with next machine 2, and next machine 2 disposes microcontroller 21, and microcontroller 21 carries out servo control to hydraulic actuator 3 through the instruction of receiving host computer 1, ensures that hydraulic actuator 3 follows the user's instruction and responds. Specifically, after entering the microcontroller 21, the command signal is amplified by the output amplifying circuit 25, then digital-to-analog conversion is performed by the digital-to-analog converter 22, the output analog control signal is loaded on the hydraulic execution element 3, and hydraulic control is realized by the hydraulic execution element 3, so that the purpose that the hydraulic pressure changes along with the change of the user input command is realized, and meanwhile, the hydraulic control system has the advantages of high control precision, high response speed and flexible signal processing. The microcontroller 21 also receives a feedback signal of the feedback sensor 4, the feedback controller inputs the feedback signal into the amplifying circuit 24 through the feedback sensor 4, then performs analog-to-digital conversion through the analog-to-digital converter 23, converts the feedback signal into a digital signal which can be processed by the microcontroller 21, the microcontroller 21 receives the digital feedback signal, and then performs feedback control on the hydraulic execution element 3 according to the digital feedback signal, so as to realize hydraulic closed-loop feedback control.
The utility model discloses a microcontroller 21 realizes hydraulic servo drive, and control algorithm is simple, easily realizes, and labour saving and time saving, simple control algorithm have guaranteed the stability of hydraulic servo control equipment quality, and microcontroller 21 still has the advantage that control accuracy is high, the effect is fast moreover.
Preferably, as shown in fig. 1, the upper computer 1 includes an industrial personal computer 11, a display 12, a mouse 13, a keyboard 14 and a board card 15, the industrial personal computer 11 passes through the board card 15 and the microcontroller 21 is electrically connected, and the display 12, the mouse 13 and the keyboard 14 are respectively electrically connected with the industrial personal computer 11.
The control instruction is sent to the industrial personal computer 11 through the mouse 12 and the keyboard 13, the industrial personal computer 11 transmits the control instruction to the board card 15, the board card 15 converts the control instruction and transmits the control instruction to the microcontroller 21, the microcontroller 21 controls the hydraulic execution element 3 according to the control instruction, and the display 14 displays the control process and the control result.
Preferably, the industrial personal computer 11 is a PLC controller or a PC.
The PLC and the PC are common industrial personal computers 11.
Preferably, as shown in fig. 1, the upper computer 1 is electrically connected to the microcontroller 21 through an adapter 26.
The adapter 26 realizes communication connection between the microcontrollers 21 of the upper computer 1 and the lower computer 2.
Preferably, the adapter 26 is an ethernet adapter, a CAN adapter or a serial port adapter.
The ethernet adapter, the CAN adapter and the serial port adapter are common adapters, and CAN be applied to different upper computers 1 to realize communication between the upper computer 1 and the lower computer 2.
Preferably, the output amplifier circuit 25 is electrically connected to the hydraulic actuator 3 via a U/I converter or a PWM drive.
Different hydraulic actuators 3 have different drive interfaces, and the U/I converter and the PWM driver are common drivers and are suitable for most hydraulic actuators 3.
Preferably, the feedback sensor 4 includes a pressure sensor, a speed sensor, and a displacement sensor.
The detection of the pressure data, the speed data and the displacement data of the hydraulic actuating element 3 is realized through a pressure sensor, a speed sensor and a displacement sensor respectively, so that the closed-loop feedback control of the pressure, the speed and the displacement is realized.
Preferably, the hydraulic actuator 3 comprises a servo valve and a proportional valve.
Servo valves and proportional valves are common hydraulic actuators.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. The hydraulic servo control equipment is characterized by comprising an upper computer and a lower computer, wherein the lower computer comprises a microcontroller, a digital-to-analog converter, an analog-to-digital converter, an input amplifying circuit and an output amplifying circuit;
the upper computer is electrically connected with the microcontroller, the microcontroller is electrically connected with the output amplifying circuit through the digital-to-analog converter, the output amplifying circuit is electrically connected with the hydraulic execution element, the feedback sensor is electrically connected with the input amplifying circuit, the input amplifying circuit is electrically connected with the microcontroller through the digital-to-analog converter, and the feedback transmission controller is arranged on the hydraulic execution element;
the output amplifying circuit is electrically connected with the hydraulic actuating element through a U/I converter or a PWM driver.
2. The hydraulic servo control device of claim 1, wherein the upper computer comprises an industrial personal computer, a display, a mouse, a keyboard and a board card, the industrial personal computer is electrically connected with the microcontroller through the board card, and the display, the mouse and the keyboard are respectively electrically connected with the industrial personal computer.
3. The hydraulic servo control device of claim 2, wherein the industrial personal computer is a PLC controller or a PC.
4. The hydraulic servo control device of claim 1, wherein the upper computer is electrically connected to the microcontroller through an adapter.
5. The hydraulic servo control device of claim 4 wherein the adapter is an Ethernet adapter, a CAN adapter, or a serial port adapter.
6. The hydraulic servo control apparatus of claim 1, wherein the feedback sensor comprises a pressure sensor, a velocity sensor, and a displacement sensor.
7. The hydraulic servo control apparatus of any of claims 1-6, wherein the hydraulic actuators comprise servo valves and proportional valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822174349.3U CN209875616U (en) | 2018-12-24 | 2018-12-24 | Hydraulic servo control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822174349.3U CN209875616U (en) | 2018-12-24 | 2018-12-24 | Hydraulic servo control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875616U true CN209875616U (en) | 2019-12-31 |
Family
ID=68946578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822174349.3U Active CN209875616U (en) | 2018-12-24 | 2018-12-24 | Hydraulic servo control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488660A (en) * | 2018-12-24 | 2019-03-19 | 襄阳航宇机电液压应用技术有限公司 | A kind of hydraulic servocontrol equipment |
-
2018
- 2018-12-24 CN CN201822174349.3U patent/CN209875616U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488660A (en) * | 2018-12-24 | 2019-03-19 | 襄阳航宇机电液压应用技术有限公司 | A kind of hydraulic servocontrol equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101706648B (en) | Design method of motion controller based on RCP and DSP | |
| CN101833284B (en) | Method for compensating system in real time by using hysteresis inversion model | |
| CN205229350U (en) | Electromagnetic braking ware intellectual detection system system | |
| CN102478033A (en) | Measuring and controlling system of electro-hydraulic servo valve | |
| CN209875616U (en) | Hydraulic servo control equipment | |
| CN103441727B (en) | A kind of servomotor controller and control method | |
| CN204437410U (en) | A kind of electro-hydraulic proportional valve controls system | |
| CN106873524A (en) | A kind of Digit Control Machine Tool closed-loop control system based on PC | |
| CN104454790A (en) | Electro-hydraulic servo valve performance test system | |
| CN105479431A (en) | Inertial navigation type robot demonstration equipment | |
| CN104038055B (en) | DC/DC converter forecast Control Algorithms based on FPGA | |
| CN105329788A (en) | Uniform velocity amplitude-varying control method for jib crane | |
| CN202442727U (en) | Multi-sensor collection data based monitoring device for hot pressing process of manmade board | |
| CN105302031A (en) | Control device and control method for piling carrying robot | |
| CN109488660A (en) | A kind of hydraulic servocontrol equipment | |
| CN204129468U (en) | Ethernet four axle laser motion control card | |
| CN202632052U (en) | Control mechanism of rolling machine controlled by programmable computer controller | |
| CN104500472B (en) | A kind of controller of electric liquid ratio valve of Sensor Temperature Compensation | |
| CN202550969U (en) | Two-way digital proportional valve amplifier | |
| CN108656090A (en) | A kind of mechanical arm assembly and the control unit for controlling the mechanical arm assembly | |
| CN203100945U (en) | Non-linear correction device for intelligent pressure sensor | |
| CN111416561B (en) | Improved three-ring control method for motor | |
| CN204515478U (en) | A kind of embedded digital controller based on FPGA | |
| CN213629141U (en) | Digital servo proportional valve controller | |
| CN210627653U (en) | Intelligent servo control hydraulic system transmission training operation table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |