阅读说明：本技术 电液伺服控制装置 (Electrohydraulic servo control device ) 是由 王鹏举 彭博成 罗杰 于 2020-07-31 设计创作，主要内容包括：本发明公开了电液伺服控制装置,包括复位电路和交流电路,所述复位电路与断路开关Q1输入端相连,所述断路开关Q1输出端与交流接触器KM201输入端相连,所述交流接触器KM201与断路开关Q2输入端相连,所述断路开关Q2输出端与输入电抗器L1和柜顶风机M2相连,本发明结构科学合理,使用安全方便,电液伺服系统采用伺服电机和定量泵系统,可以随时启停,按需供给,几乎不产生溢流,从而带来节能效果,通过伺服驱动器控制,油压PID闭环控制,根据系统流量需求调节转速,节约电能,并且更换异步电机为永磁同步电机,噪声小,响应快,在不需要的流量被节省下来,油耗降低,油温降低。(The invention discloses an electrohydraulic servo control device, which comprises a reset circuit and an alternating current circuit, wherein the reset circuit is connected with the input end of a circuit breaker Q1, the output end of a circuit breaker Q1 is connected with the input end of an alternating current contactor KM201, the alternating current contactor KM201 is connected with the input end of a circuit breaker Q2, the output end of the circuit breaker Q2 is connected with an input reactor L1 and a cabinet top fan M2, the electrohydraulic servo system has a scientific and reasonable structure and is safe and convenient to use, adopts a servo motor and a quantitative pump system, can be started and stopped at any time, is supplied according to needs, hardly overflows, thereby bringing an energy-saving effect, controls an oil pressure PID closed loop through a servo driver, regulates the rotating speed according to the flow needs of a system, saves electric energy, and replaces an asynchronous motor to be a permanent magnet synchronous motor, has small noise and fast response, the oil temperature decreases.)

1. Electro-hydraulic servo control device, including reset circuit and alternating current circuit, its characterized in that: the reset circuit is connected with the input end of a circuit breaker Q1, the output end of a circuit breaker Q1 is connected with the input end of an alternating current contactor KM201, the alternating current contactor KM201 is connected with the input end of a circuit breaker Q2, and the output end of the circuit breaker Q2 is connected with an input reactor L1 and a cabinet top fan M2;

the input reactor L1 is connected with a servo driver U1, the output end of the servo driver U1 is connected with the input end of an output reactor L2, and the output reactor L2 is connected with a servo motor M1.

2. The electro-hydraulic servo control device of claim 1, wherein a fuse F1 is connected in series between the output end of the cut-off switch Q2 and the inductor and the top cabinet fan M2.

3. The electro-hydraulic servo control device of claim 1, wherein the servo motor M1 is a three-phase motor and PE terminates a wire.

4. The electro-hydraulic servo control device of claim 1, wherein the servo driver U1 is connected to a brake unit U2 at terminals N and P, and a resistor R1 is connected in series between terminals P (+) and BR of the brake unit U2.

5. The electro-hydraulic servo control device of claim 4, wherein the AI1, AI2 and +10V terminals of the U1 terminal of the servo driver are connected in parallel to form an N terminal and a P terminal power supply.

6. The electro-hydraulic servo control device of claim 5, wherein the AI3 and +15V ends of the servo driver U1 are connected with the pressure sensor U3, and the pressure sensor U3 is grounded, so that signal interference is reduced.

7. The electro-hydraulic servo control device of claim 1, wherein a DI1 port of the U1 end of the servo driver is connected with a COM port through a socket X1 to form a direct current power supply;

and a KTY + port and a KTY-port at the end of the servo driver U1 are connected with the socket X2.

8. The electrohydraulic servo control device according to claim 1, wherein a live line L end of the alternating current circuit is connected with an input end of a fuse F2, an output end of the fuse F2 is connected with an input end of an alternating current contactor normally-open contact KM201, and an output end of the alternating current contactor normally-open contact KM201 is connected with a motor heat dissipation extension M3.

9. The electro-hydraulic servo control device of claim 1, wherein the reset circuit is 380 ac and the ac circuit is 220V ac.

Technical Field

The invention relates to the technical field of servo control, in particular to an electro-hydraulic servo control device.

Background

"servo" -the term comes from greek "slave", and people want to use "servo" as a conscious discipline tool to follow the requirements of control signals and move, and before the signals come, the rotor is still; after the signal comes, the rotor rotates immediately; when the signal disappears, the rotor can stop rotating automatically in real time, and the rotor is named as a servo system due to the servo performance;

however, in the hydraulic station of the electro-hydraulic servo control device in the metallurgical industry in the market at present, an asynchronous motor drives an oil pump to generate pressure required by a system, the motor runs at a power frequency at a high speed when an oil cylinder does not act, the flow required by the system is small when the oil cylinder does not act, and redundant flow flows back to the oil cylinder through an overflow valve, so that the problems of electric energy waste, high oil temperature and high noise of the asynchronous motor are caused.

Disclosure of Invention

The invention provides an electro-hydraulic servo control device, which can effectively solve the problems that in the background technology, an asynchronous motor drives an oil pump to generate pressure required by a system in a hydraulic station in the metallurgical industry of the electro-hydraulic servo control device in the current market, the motor runs at power frequency and high speed when an oil cylinder does not act, the flow required by the system is small when the oil cylinder does not act, and redundant flow flows back to the oil cylinder through an overflow valve, so that the electric energy is wasted, the oil temperature is high, and the noise of the asynchronous motor is large.

In order to achieve the purpose, the invention provides the following technical scheme: the electro-hydraulic servo control device comprises a reset circuit and an alternating current circuit, wherein the reset circuit is connected with the input end of a circuit breaker Q1, the output end of a circuit breaker Q1 is connected with the input end of an alternating current contactor KM201, the alternating current contactor KM201 is connected with the input end of a circuit breaker Q2, and the output end of the circuit breaker Q2 is connected with an input reactor L1 and a cabinet top fan M2;

the input reactor L1 is connected with a servo driver U1, the output end of the servo driver U1 is connected with the input end of an output reactor L2, and the output reactor L2 is connected with a servo motor M1.

According to the technical scheme, a fuse F1 is connected in series between the output end of the circuit breaker Q2 and the inductor and the cabinet top fan M2.

According to the technical scheme, the servo motor M1 is three-phase power, and PE is connected with an electric wire in a terminating mode.

According to the technical scheme, the N end and the P end of the servo driver U1 are connected with the brake unit U2, and the P (+) end and the BR end of the brake unit U2 are connected with the resistor R1 in series.

According to the technical scheme, the AI1, the AI2 and the +10V end of the U1 end of the servo driver are connected in parallel to form a power supply of an N end and a P end.

According to the technical scheme, the AI3 and the +15V end of the servo driver U1 end are connected with the pressure sensor U3, and the pressure sensor U3 is grounded, so that signal interference is reduced.

According to the technical scheme, a DI1 port of the U1 end of the servo driver is connected with a COM port through a socket X1 to form direct current supply;

and a KTY + port and a KTY-port at the end of the servo driver U1 are connected with the socket X2.

According to the technical scheme, the L end of the live wire of the alternating current circuit is connected with the input end of a fuse F2, the output end of the fuse F2 is connected with the input end of an alternating current contactor normally open contact KM201, and the output end of the alternating current contactor normally open contact KM201 is connected with a motor heat dissipation extension machine M3.

According to the technical scheme, the reset circuit is 380 alternating current, and the alternating current circuit is 220V alternating current.

Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use, the electro-hydraulic servo system adopts the servo motor and the quantitative pump system, can be started and stopped at any time, is supplied according to the requirement, and hardly generates overflow, thereby bringing the energy-saving effect, adjusts the rotating speed according to the flow requirement of the system by the control of the servo driver and the closed-loop control of the oil pressure PID, saves the electric energy, changes the asynchronous motor into the permanent magnet synchronous motor, has small noise and quick response, saves the flow which is not needed, reduces the oil consumption and reduces the oil temperature.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.