CN211556855U

CN211556855U - Standardized control protector suitable for electric system of tunneling machine under multiple working conditions

Info

Publication number: CN211556855U
Application number: CN202020229709.XU
Authority: CN
Inventors: 刘国鹏; 胡文芳; 康永玲; 靳明智; 田原; 范柄尧; 王德光; 呼守信; 侯林; 唐会成; 曹建文; 许连丙; 姜铭; 刘浩; 范海峰; 冯化; 程凤霞
Original assignee: Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Current assignee: Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Priority date: 2020-02-29
Filing date: 2020-02-29
Publication date: 2020-09-22
Anticipated expiration: 2030-02-28

Abstract

The utility model belongs to the field of electrical system control of a heading machine, and discloses a standardized control protector suitable for electrical systems of heading machines under various working conditions, which comprises a shell, a control circuit arranged in the shell, and a dial switch, a signal terminal, a communication interface and a liquid crystal touch display screen which are arranged on the surface of the shell; the control circuit comprises a controller, an isolation module, a protection module, a relay module, a signal feedback module and a wireless router; the isolation module comprises an output isolation module, an RS485 isolation module, a switching value isolation module and a non-safety CAN isolation module; the protection module comprises an electric leakage locking module, a thermistor detection module, a platinum thermal resistor detection module and an electric leakage monitoring module; the wireless router is respectively connected with the door panel downloading port, the electric cabinet door panel antenna and the controller. The utility model discloses it is compatible good, can wide application in entry driving machine control field.

Description

Standardized control protector suitable for electric system of tunneling machine under multiple working conditions

Technical Field

The utility model belongs to the electrical system control field of entry driving machine, concretely relates to standardized control protector who adapts to multiple operating mode entry driving machine electrical system.

Background

The development machine is used as main underground engineering equipment for developing roadways, is widely used in coal mines and engineering tunnels at present, and is also applied to non-coal mines such as partial potassium salt, barium sulfate, iron ore and the like. Different working condition environments enable the electric system of the heading machine to work under severe working conditions of strong vibration, large inclination angle, high altitude, strong corrosion and the like and power supply and distribution systems with different voltage levels or different power supply modes. Meanwhile, different construction processes and user requirements can require the electric system of the heading machine to be configured with functions of remote control operation, complete machine state monitoring, remote operation or data uploading and the like.

The construction operation of the development machine is more in China when the tunnel is developed on the site of the coal mine, engineering tunnel and other projects. The market competition of the home development machine is very fierce, and in order to adapt to different engineering sites, the electric system of a main development machine manufacturer is developed towards standardization and intellectualization. At present, the electrical systems of various manufacturers still do not widely use the standardized electric systems of the heading machine which can adapt to various working conditions, the integration level of the electrical function units in the existing electric control box is not high, the graphical interaction function of a human-computer interface is incomplete, the system compatibility is poor, and electric control systems with different functions are formed all the time.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the deficiencies in the prior art, the technical problem who solves is: the standardized control protector is suitable for electric systems of heading machines under various working conditions.

In order to solve the technical problem, the utility model discloses a technical scheme be: a standardized control protector suitable for an electric system of a tunneling machine under multiple working conditions comprises a shell, a control circuit arranged in the shell, and a dial switch, a signal terminal, a communication interface and a liquid crystal touch display screen which are arranged on the surface of the shell; the control circuit comprises a controller, an isolation module, a protection module, a relay module, a signal feedback module and a wireless router;

the isolation module comprises a controller output isolation module, an RS485 isolation module, a switching value isolation module and a non-safety CAN isolation module which are connected with the controller, the controller output isolation module is used for isolating a contact signal output by the controller through an optical coupler and then outputting the contact signal to peripheral equipment, the RS485 isolation module is used for converting an intrinsic safety RS485 signal of external equipment into a non-intrinsic safety RS485 signal and then sending the non-intrinsic safety RS485 signal to the controller, and the switching value isolation module is used for isolating and converting an intrinsic safety switching value signal of the external equipment into a non-intrinsic safety switching value signal and then sending the non-intrinsic safety switching value signal to the controller; the non-safety CAN isolation module is used for isolating non-safety CAN signals of external equipment and then sending the isolated non-safety CAN signals to the controller;

the protection module comprises a leakage locking module, a thermistor detection module, a platinum thermistor detection module and a leakage monitoring module which are connected with the controller; the electric leakage locking module is used for acquiring electric leakage detection signals of all the motors and then sending the electric leakage detection signals to the controller; the thermistor detection module is used for acquiring thermistor values of the oil pump motor and the cutting motor and sending an overheating signal to the controller; the platinum thermal resistance detection module is used for collecting Pt100 resistance values of the oil pump motor and the cutting motor and sending resistance value signals to the controller; the leakage monitoring module is used for monitoring a leakage signal of the power supply loop and sending the leakage signal to the controller;

the relay module is connected with the controller and is used for sending a digital quantity signal of peripheral equipment to the controller; the dial switch is connected with the controller through a signal feedback module; the wireless router is respectively connected with the door panel downloading port, the electric cabinet door panel antenna and the controller.

The isolation module further comprises an Ethernet isolation module, and the Ethernet isolation module is used for carrying out data transmission with the wireless router after isolating the door panel downloading port and the electric cabinet door panel antenna signal.

The communication interface comprises a network LAN interface, a CAN communication interface and a wifi interface, the antenna end of the wireless router is isolated by the Ethernet isolation module and then connected with the antenna of the door panel of the electric cabinet through the wifi interface, and the connection port of the wireless router is isolated by the Ethernet isolation module and then connected with the door panel download port through the network LAN interface; the CAN communication interface is connected with the controller through the non-safety CAN isolation module.

The dial switches are 2 groups in total, and each group comprises 4 dial switches.

Compared with the prior art, the utility model following beneficial effect has:

the utility model provides a standardized control protector of adaptation multiple operating mode entry driving machine electrical system, can gather external equipment such as control box, motor, light, alarm device, gas outage appearance, scram button, oil temperature sensor and oil level sensor signal, gather the signal and input to the controller after protection module, isolation module or relay module; the utility model discloses can realize functions such as control and protection of eight at least return circuits entry driving machine electrical system, can satisfy the electrical control of the present overwhelming majority of entry driving machine models.

And secondly, the utility model provides a standardized control protector is provided with network LAN interface and CAN communication interface, and the control protector CAN have communication function's equipment communication such as solenoid valve control box, data collection station, machine carries display box and wireless base station with the outside. The problems of high underground construction difficulty, difficulty in wiring, inconvenience in operation of personnel, occupation of construction period and the like are solved, and functions of remote control operation, complete machine state monitoring, remote operation, data uploading and the like are conveniently and quickly met for the complete machine.

Thirdly, the utility model provides a standardized control protector is provided with wireless communication (Wi-Fi) interface, can directly walk the line with the external antenna of electric cabinet and link to each other, utilizes wireless communication to realize wireless download procedure, wireless setup parameter, cell phone control, functions such as long-range wireless monitoring.

Fourthly, the utility model provides a standardized control protector includes the liquid crystal display touch-sensitive screen, can realize human-computer interaction through this screen.

And fifthly, the utility model provides a standardized control protector is provided with dial switch through the signal feedback board, can realize multiple work through dial switch and enable.

To sum up, the utility model provides a standardized control protector of multiple operating mode entry driving machine electrical system of adaptation, simple structure is compact, has both guaranteed entry driving machine electrical control system's reliable operation, has solved the poor, the poor scheduling problem of system compatibility of electrical system environmental adaptability that entry driving machine serialization and product cross the border in-process met again. The development efficiency, the assembly efficiency and the service efficiency of the electric system of the heading machine are improved, the costs of management, material purchase, production organization, after-sales service and the like of all links of the whole life cycle of the electric system of the heading machine are effectively reduced, an automatic control platform is provided for the electric system of the heading machine, and technical reserves are provided for centralized coordination control and networking of a plurality of devices of a heading working face and realization of a few-person or unmanned working face in the future.

Drawings

Fig. 1 is a schematic block diagram of a circuit structure of a standardized control protector adapted to an electric system of a tunneling machine under multiple working conditions according to an embodiment of the present invention;

fig. 2 is a top schematic view of a standardized control protector adapted to an electric system of a tunneling machine under multiple working conditions according to an embodiment of the present invention;

fig. 3 is a schematic right side view of a standardized control protector adapted to an electrical system of a heading machine under multiple working conditions according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of an embodiment of the leakage blocking module of the present invention;

fig. 5 is a schematic circuit diagram of a thermistor detection module according to an embodiment of the present invention;

FIG. 6 is a schematic circuit diagram of a platinum thermistor detection module according to an embodiment of the present invention;

FIG. 7 is a schematic circuit diagram of an embodiment of the leakage monitor module of the present invention;

fig. 8 is a schematic circuit diagram of an output isolation module according to an embodiment of the present invention;

fig. 9 is a schematic circuit diagram of an RS485 isolation module according to an embodiment of the present invention;

fig. 10 is a schematic circuit diagram of a switching value isolation module according to an embodiment of the present invention;

fig. 11 is a schematic circuit diagram of a signal feedback module according to an embodiment of the present invention;

fig. 12 is a schematic circuit diagram of an ethernet isolation module according to an embodiment of the present invention;

fig. 13 is a schematic circuit diagram of a relay module according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in figures 1-3, the embodiment of the utility model provides a standardized control protector who adapts to multiple operating mode entry driving machine electrical system, including casing 1, set up control circuit and setting at casing surface's dial switch 2, signal terminal 3, communication interface and liquid crystal touch display screen 6 in casing 1. The liquid crystal touch display screen 6 is arranged above the shell, and the dial switch 2, the signal terminal 3 and the communication interface are arranged on the side face of the shell 1. The signal terminal 3 is used for signal connection with external equipment, and connection between the external equipment signal and the standardized control protector is achieved.

As shown in fig. 1, the control circuit includes a power supply module, a controller, an isolation module, a protection module, a relay module, a signal feedback module, and a wireless router; the dial switch is connected with the controller through a signal feedback module; and the antenna end of the wireless router is connected with the antenna of the isolated electric cabinet door plate, and other ports are respectively connected with the controller network port and the isolated network LAN interface. The wireless router has two functions in the whole electric control system, and is used for networking, and the controller and the isolated network LAN interface are combined together to realize data transmission; and the second is used for wireless communication, and realizes wireless program downloading and debugging monitoring.

As shown in fig. 1, the power module includes a DC24V non-safety power supply, a DC5V non-safety power supply, and a DC12V intrinsically-safe power supply, the DC24V non-safety power supply is used for providing a DC24V power supply for the DC12V intrinsically-safe power supply and the protection module, and providing a DC24V power supply for the non-safety circuits of the RS485 isolation module, the switching value isolation module, the non-safety CAN isolation module, and the ethernet isolation module, the DC5V non-safety power supply is used for providing a power supply for the lcd touch screen, and the DC12V intrinsically-safe power supply is used for providing a DC12V power supply for the intrinsically-safe circuits of the RS485 isolation module, the switching value isolation module, the non-safety CAN isolation module, and the ethernet.

As shown in fig. 1, the isolation module includes an RS485 isolation module, a switching value isolation module, an insecure CAN isolation module, an ethernet isolation module and a controller output isolation module, the RS485 isolation module is used for isolating an intrinsically safe RS485 signal into an insecure RS485 signal and then transmitting the insecure RS485 signal to the controller, the switching value isolation module is used for isolating the intrinsically safe switching value signal, for example, a pressure switch and an intrinsically safe operation box hard contact signal are isolated into an insecure switching value signal and then transmitted to the controller, the insecure CAN isolation module is used for isolating the insecure CAN signal and then transmitting the insecure CAN signal to the controller, the ethernet isolation module is used for isolating a door panel download port and an electric control box door panel antenna signal and then transmitting data to the wireless router, and the controller output isolation module is used for isolating the contact signal output by the controller and then outputting the contact signal to an external device.

As shown in fig. 1, the protection module includes a leakage blocking module, a thermistor detection module, a platinum thermistor detection module, and a leakage monitoring module; the leakage locking module is used for acquiring a leakage detection signal of the motor, processing the signal and then sending the signal to the controller; the thermistor detection module is used for acquiring a thermistor value of the motor, processing a signal and then sending the signal to the controller; the platinum thermal resistance detection module is used for acquiring the PT100 resistance value of the motor, processing the signal and then sending the signal to the controller; the leakage monitoring module is used for monitoring a leakage signal of the power supply loop, processing the signal and then sending the signal to the controller.

As shown in fig. 1, the relay module includes a plurality of relays, input terminals of which are connected to the external digital signal, and output terminals of which are connected to the controller, for transmitting the external digital signal to the controller. In addition, the controller can also output digital quantity control signals through the relay module to control the work of peripheral equipment, for example, the control signals output by the controller are connected with a gas power-off instrument, an alarm device, a lighting lamp and a signal lamp through the relay module to control the work of the gas power-off instrument, the alarm device, the lighting lamp and the signal lamp.

As shown in fig. 1, the liquid crystal touch display screen is connected to the controller through RS232 communication for information interaction.

As shown in fig. 1, the signal feedback module is a JB signal feedback board, a dial switch of the JB signal feedback board is exposed out of the control protector housing, an input end of the JB signal feedback board is connected with an on-off terminal of the dial switch, and an output end of the JB signal feedback board is connected with the controller, and the JB signal feedback board is used for enabling work, protection and emergency start of each loop outside the control protector. Specifically, in this embodiment, the dial switches have 2 groups, and each group of 4 dial switches can implement 8 kinds of work enabling.

As shown in fig. 1, the communication interface includes a network LAN interface 4, a CAN communication interface 5 and a wireless communication interface, i.e., a wifi interface 7, and the network LAN interface and the CAN communication interface are connected to an external device having ethernet and CAN communication functions, so as to realize communication connection between the external device and the standardized control protector. In addition, in this embodiment, there are 2 CAN communication interfaces 5, all connect the controller through ann CAN isolation module not for connect outside CAN signal.

As shown in fig. 4, which is a schematic circuit diagram of the leakage blocking module in this embodiment, the leakage blocking module can perform leakage blocking detection on 6 lines, and the detection function is activated by the relay of each line, but shares the same circuit detection unit and one output interface. The circuit board has a power supply voltage of 24VDC, inputs of 6 paths of relay control signals and 6 paths of leakage detection loop signals, and outputs of the circuit board is a path of triode open circuit output. The switch K is used for voltage switching between 660V/1140V, and K is closed to 1140V. The action value requirement is as follows: 1140V, 40K Ω and 60K Ω return; 660V, 22K Ω action 33K Ω return.

The working principle of the leakage locking module is explained by taking one of the motor loops as an example. Firstly, one end of a normally closed contact of a contactor of the motor 1 is connected with a main loop, and the other end of the normally closed contact is connected with IN1 of the circuit board, so that the motor can not be started simultaneously when loop leakage detection is carried out. The motor 1 starting button is pressed, the controller sends OUT a missing detection control signal Q1 of a motor 1 loop after receiving a starting signal, the relay J1 is activated, a normally open contact of the relay J1 is closed, an input signal is calculated by the detection unit, if a circuit is normal, the optical coupler is conducted, the triode is conducted to output a high-level signal OUT2 to the controller, and the controller sends OUT a motor starting signal after receiving the signal and calculating; when the current leakage occurs, the optocoupler is cut off, the triode is not conducted, a low-level signal OUT2 is output to the controller, and the controller judges the current leakage of the loop through operation after receiving the signal and cannot start.

As shown in fig. 5, it is a schematic circuit diagram of the thermistor detection module in this embodiment, and the module can perform overheat detection on 5 thermistor signals. The circuit board supplies 24VDC, the input is 5-path thermistor signals, and the output is 5-path common L signals. The action value requirement is as follows: 3K Ω and 0.6K Ω.

The working principle of the thermistor detection module is explained by taking one of the motor loops as an example. Firstly, connecting a thermistor of a motor 1 with

pins

3 and 4 of a circuit board as an input signal IN1, conducting an optical coupler through calculation of an intermediate unit if the temperature is normal, conducting a triode to output a high-level signal O1 to a controller, and continuing subsequent operation after the controller receives the signal; if the motor is overheated, the optocoupler is cut off, the triode is not conducted, a low-level signal O1 is output to the controller, and the controller receives the signal to cut off the overheating loop, so that the corresponding motor stops running.

As shown in fig. 6, which is a schematic circuit diagram of the platinum thermistor detection module in this embodiment, the circuit board has 4 independent PT100 signal transmitting units. The circuit board has 24VDC power supply voltage, 4 paths of PT100 signals are input, the range is 0-200 ℃, and 4 paths of 4-20 mA or 2-10V signals are output.

The working principle of the platinum thermal resistance detection module is described by taking one of the motor loops as an example. Firstly, a PT100 of a motor 1 is connected to

pins

1 and 2 of a circuit board to serve as an input signal IN1, an OUT1 (4-20 mA signal) is output to a controller through calculation of a middle unit, and the controller can obtain a temperature value of the motor after receiving the signal.

As shown in fig. 7, the schematic circuit diagram of the leakage monitoring module in this embodiment is provided with 4 leakage monitoring units with independent inputs, and can monitor leakage of 2 127VAC loops and 2 VAC loops. The circuit board is supplied with 24VDC power supply voltage, 2 pieces of 127VAC leakage monitoring circuits and 2 pieces of 36VAC leakage monitoring circuits are input, and 4 paths of common L signals are output. The action value requirement is as follows: 127VAC, 5K Ω; 36VAC, 3K Ω. Power down can be self-resetting.

The working principle of the leakage monitoring module is explained by taking one 127VAC loop as an example. Firstly, connecting a 127VAC loop with

pins

2 and 3 of a circuit board as an input signal IN1, conducting an optical coupler through calculation of an intermediate unit if the circuit is normal, conducting a triode to output a high-level signal O1 to a controller, and continuing subsequent operation after the controller receives the signal; if the electric leakage occurs, the optical coupler is cut off, the triode is not conducted, a low-level signal O1 is output to the controller, and after the controller receives the signal, the corresponding electric equipment can be controlled not to work.

As shown in fig. 8, a schematic circuit diagram of the controller output isolation module in this embodiment is shown, and the module performs explosion-proof type conversion on signals of 4 controller output contacts for the local side. Input side (non-ampere): the power supply is 24VDC, and the 4-way controller outputs signals. Output side (intrinsically safe): the power supply is 12VDC, and 4-way transistor open-circuit output signals are provided.

The working principle of the output controller isolation module is explained by taking one path of signal isolation as an example. Firstly, one output signal of the controller is connected with a pin 1 of the circuit board to serve as an input signal Q0, and after intermediate optical coupling isolation, a transistor open-circuit signal OUT1 is output and connected to peripheral equipment.

As shown in fig. 9, the circuit schematic diagram of the RS485 isolation module is used for signal isolation, and converts 1 channel of intrinsically safe RS485 signal into 1 channel of non-safe RS485 signal after isolation, and sends the signal to the controller. Input side (intrinsically safe): and supplying 12VDC and 1 RS485 signal. Output side (non-ampere): supplying power to 24VDC and 1 RS485 signal.

As shown in fig. 10, it is a schematic circuit diagram of a switching value isolation module in this embodiment, where the module is used for isolating a switching value signal, and can isolate 4 channels of intrinsically safe switching value signals and then convert the isolated switching value signals into 4 channels of non-safe switching value signals, and send the signals to a controller. Input side (intrinsically safe): and supplying 12VDC, 4 switching value signals. Output side (non-ampere): supplying power to 24VDC, and 4-way transistor open-circuit output signals.

The working principle of the switching value isolation module is explained by taking one path of signal isolation as an example. Firstly, an intrinsically safe switching value signal is connected with

pins

1 and 2 of a circuit board to serve as an input signal IN1, and after being isolated by an intermediate optical coupler, an output transistor open-circuit signal OUT1 is sent to a controller.

As shown in fig. 11, which is a schematic circuit diagram of the signal feedback module in this embodiment, only one set of dial switches is shown in the diagram. The circuit board of the module has switches SW1 and SW2 for a total of 4 dial switches. L + is connected with a power supply terminal of the controller, and I1, I2, I3 and I4 are 4 input signals of the controller. When the switch is turned on, a signal is input to the controller.

As shown in fig. 12, which is a schematic circuit diagram of an ethernet isolation module in this embodiment, the ethernet isolation module is used for ethernet signal isolation, and converts a 1-channel insecure ethernet signal into a 1-channel intrinsically safe ethernet signal after isolation, and sends the ethernet signal to an intrinsically safe antenna side. Input side (non-ampere): power supply 24VDC, 1 way ethernet signal. Output side (intrinsically safe): power supply 12VDC, 1 way ethernet signal.

As shown in fig. 13, which is a schematic circuit diagram of the relay module of this embodiment, the external signal is connected to pins a1 and a2 of the relay, pins a 11 and 14 of the normally open contact are connected to the controller, and when the external signal is input to a high level, power is supplied to the coil of the relay to close the normally open contact, and a signal is output to the controller to complete the transmission of the signal.

When the device works, the standardized control protector is connected with peripheral equipment (comprising an oil pump motor, a cutting motor, a dust removal motor, a transfer motor, an operation box, an alarm device, a lighting lamp, a signal lamp, a machine body emergency stop button, a gas power-off instrument, an oil temperature sensor, an oil level sensor, a pressure switch, an electric cabinet display screen and a non-safety DC24V power supply). The specific working process is as follows: the electric leakage locking plate collects electric leakage detection signals of all the motors before the motors are started, processes the collected signals and then sends the processed signals to the controller. The thermistor detection board collects the thermistors of the oil pump motor and the cutting motor, and sends an overheating signal to the controller after calculation. The platinum thermal resistance detection plate collects pt100 resistance values of the oil pump motor and the cutting motor, and the pt100 resistance values are converted to send resistance value signals to the controller. The leakage monitoring board monitors the AC36V power supply and the AC127V power supply on line and sends monitoring signals to the controller. The current transducer collects the three-phase current of the motor, processes the current signal and sends the processed current signal to the controller after passing through the non-safety CAN isolation module. The collected intrinsic safety operation box switching value signal and the collected pressure switch signal are sent to the controller after passing through the switching value isolation module. Other operation box instructions (including starting and stopping of a motor, an alarm bell, inquiry, page turning and resetting) are communicated by RS485 and are sent to the controller after passing through the RS485 isolation module. And the peripheral digital quantity signals (including a gas blocking signal and an engine body emergency stop signal) are isolated by the relay module and then output to the controller. The peripheral analog quantity signals (including the oil temperature sensor signal and the oil level sensor signal) are directly sent to the controller through the signal terminal. The dial switch signal is sent to the controller after passing through the signal feedback board. The control signal that the controller produced (including the start-stop control signal of motor, shunt excitation coil control signal, light lamp control signal, signal lamp control signal, alarm device control signal and gas outage appearance control signal), send control signal to the oil pump motor after the relay is kept apart, the cutting motor, dust removal motor, the motor of reprinting, the circuit breaker, the light, the signal lamp, alarm device and gas outage appearance, thereby realize various control (including opening and stopping control, alarm control, scram control and fault control) and various protections (including overload protection, overheat protection, three-phase unbalance, open-phase protection and electric leakage shutting) to the motor, and gas overrun protection, oil tank oil temperature is too high protection, oil tank oil level is too low protection, AC36V electric leakage monitoring protection and AC127V electric leakage monitoring protection. Meanwhile, the controller and the liquid crystal touch display screen at the top can display self-checking states and state parameters through RS232 communication and achieve quick selection of machine types. The controller CAN also upload various signals to an electric cabinet display and an operation box display screen through CAN bus or RS485 communication, and the display displays various signals in a graphical mode. And the antenna end of the wireless router is connected with the antenna of the isolated electric cabinet door plate, and other ports are respectively connected with the controller network port and the isolated network LAN interface, so that data transmission, wireless downloading program, debugging and monitoring are realized.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A standardized control protector suitable for an electric system of a tunneling machine under multiple working conditions is characterized by comprising a shell, a control circuit arranged in the shell, and a dial switch, a signal terminal, a communication interface and a liquid crystal touch display screen which are arranged on the surface of the shell; the control circuit comprises a controller, an isolation module, a protection module, a relay module, a signal feedback module and a wireless router;

2. The standardized control protector applicable to the electric system of the tunneling machine under multiple working conditions according to claim 1, wherein the isolation module further comprises an Ethernet isolation module, and the Ethernet isolation module is used for carrying out data transmission with the wireless router after isolating signals of a door panel downloading port and an electric cabinet door panel antenna.

3. The standardized control protector applicable to the electric system of the tunneling machine under multiple working conditions according to claim 2, characterized in that the communication interface comprises a network LAN interface, a CAN communication interface and a wifi interface, the antenna end of the wireless router is isolated by the Ethernet isolation module and then connected with the antenna of the door panel of the electric cabinet through the wifi interface, and the connection port of the wireless router is isolated by the Ethernet isolation module and then connected with the door panel download port through the network LAN interface; the CAN communication interface is connected with the controller through the non-safety CAN isolation module.

4. The standardized control protector for the electric system of the heading machine adapting to multiple working conditions as claimed in claim 1, wherein the dial switches comprise 2 groups of 4 dial switches.