Portable heading machine electrical element detection device

Abstract

The utility model provides a portable heading machine electrical element detection device, which comprises a detection box, the detection box comprises a box cover and a box body, the box cover is hinged with the box body, a display screen is arranged on the box cover, a test panel is arranged on the box body, a power supply and a PLC (Programmable Logic Controller) are arranged in the box body, the power supply is connected with the test panel, and the PLC is connected with the display screen. The PLC is respectively connected with the display screen and the test panel, the test panel is provided with a data interface, and the data interface is connected with an electrical element to be tested. According to the utility model, the problem that professional electrical element detection equipment is lacked on site is solved, the reliability and the service life of the equipment are improved, and the equipment is ensured to operate under good working conditions. And meanwhile, the maintenance cost can be reduced, and equipment damage caused by faults is avoided. Due to the portable design, the detection device is easy to carry and operate, compact in structure, high in integration level, particularly suitable for field detection, capable of improving the detection efficiency and suitable for severe construction environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical component detection technical field especially, it relates to a kind of portable heading machine electrical component detection device. BACKGROUND

[0002] Fault handling is essential in the process of shield equipment assembly and construction, because of the site environment, electrical fault occurs frequently. Due to the complexity, suddenness and unpredictability of fault problems and reasons, and limited by the single function of traditional electrical component detection device, it is impossible to quickly judge the fault cause, so the staff often directly deal with the way of replacing the faulty component in the face of complex fault situation, which exists certain resource waste, and is not conducive to the analysis of fault cause.

[0003] Fault handling is essential in the process of shield equipment assembly and construction, because of the site environment, electrical fault occurs frequently. Fault problems and reasons have complexity, suddenness and unpredictability, and common electrical component faults include wire and cable faults, motor faults, control loop faults, power supply faults and sensor faults. The usual treatment methods include visual inspection, electrical parameter testing, insulation resistance testing, etc. Due to the limitation of the instrument used, limited by the single function of traditional electrical component detection device, the staff can only test one aspect of the fault, such as single electrical parameter testing or single insulation resistance testing, etc. Most faults can only be judged according to the fault phenomenon to determine the location of the faulty component, and the faulty component is replaced directly, which cannot analyze the cause of the fault well, and there is a certain resource waste phenomenon.

[0004] The invention patent with application number 201922387068.0 discloses a kind of portable shield machine component function test device, including shell and be located on the shell uninterrupted power supply, power storage equipment, electronic ammeter, electronic voltmeter and terminal row;Power storage equipment, electronic ammeter and electronic voltmeter are respectively connected with uninterrupted power supply;Terminal row is equipped with multiple terminal assemblies respectively connected with the input end of the uninterrupted power supply, the output end of uninterrupted power supply, the detection end of electronic ammeter and the detection end of electronic voltmeter electrically. The above-mentioned test device can detect the functionality of all components on the shield machine without power failure and disassembly of the shield machine, greatly shorten the detection time of component, which is also beneficial to the maintenance of component, and facilitate detection personnel to make accurate judgment;And can be carried out, to standard shield machine static evaluation electrical component detection has obvious positive effect. UTILITY MODEL CONTENT

[0005] To address the technical problems of existing shield / TBM on-site testing devices being limited in function, complex in operation, low in testing efficiency, and not portable, this utility model proposes a portable testing device for electrical components of tunneling machines. This device improves testing efficiency, is integrated, lightweight, and can be used for shields and TBMs. It helps improve the reliability of the electrical system of the shield machine, avoids resource waste, and ensures project progress and safety.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A portable testing device for electrical components of a tunneling machine includes a testing box, which includes a box cover and a box body. The box cover and the box body are hinged together. The box cover is provided with a display screen, and the box body is provided with a test panel. The box body contains a power supply and a PLC. The power supply is connected to the test panel, and the PLC is connected to both the display screen and the test panel. The test panel is provided with a data interface, which is connected to the electrical component under test.

[0007] Preferably, the ends of the lid and the body are snapped together by a snap-fit ​​connector; a storage box is provided inside the box, and the storage box is located on one side of the test panel.

[0008] Preferably, the test panel is provided with a power supply area, a DC detection area, a network cable test area, a sliding resistor area, a leakage current test area, an AC detection area, and a relay detection area. The power supply area, DC detection area, leakage current test area, and AC detection area are all connected to the PLC.

[0009] Preferably, the panel of the power supply area is provided with a main power inlet switch, a 220V outlet switch, an AC220V outlet interface, and an adjustable DC power supply detection interface. One end of the main power inlet switch is connected to the inlet of the test box, and the other end of the main power inlet switch is connected to the 220V outlet switch and the power supply respectively. The 220V outlet switch is connected to the leakage current test area and the AC220V outlet interface respectively. The adjustable DC power supply detection interface is connected to the power supply.

[0010] Preferably, the power supply panel is also equipped with an emergency stop button, which is connected to the main power supply switch and the detection box inlet switch respectively; the main power supply switch is connected to the integrated protection module, which is connected to the 220V outlet switch and the power supply.

[0011] Preferably, the power supply includes an adjustable DC power supply, a 220V to 24V switching power supply and a 220V to 12V switching power supply, the adjustable DC power supply is connected with the PLC; the adjustable DC power supply is connected with the adjustable DC power supply detection interface, and a display window of the adjustable DC power supply is arranged on a panel of the power supply area; the adjustable DC power supply is connected with the comprehensive protection module through a DC switch, and the DC switch is arranged on the panel of the power supply area; the 220V to 24V switching power supply and the 220V to 12V switching power supply are both connected with the comprehensive protection module, the 220V to 24V switching power supply is respectively connected with the PLC, the relay detection area and the display screen, and the 220V to 12V switching power supply is respectively connected with the DC detection area, the network cable test and the sliding resistor area and the AC detection area.

[0012] Preferably, the display screen is provided with a display screen power supply interface and a display screen data interface, the display screen power supply interface is connected with the 220V to 24V switching power supply through a connecting line, and the display screen data interface is connected with the PLC; the number of the adjustable DC power supplies and the DC switches is both two, and the range of the adjustable DC power supply is 0-60V.

[0013] Preferably, the DC detection area includes a DC voltmeter and a DC ammeter, and the DC voltmeter and the DC ammeter are both connected with the PLC; the AC detection area includes an AC voltmeter and an AC ammeter, and the AC voltmeter and the AC ammeter are both connected with the PLC; the panels of the DC detection area and the AC detection area are both provided with a data interface and voltage windows and current windows for displaying measured values, and the data interface is connected with the electrical element to be measured.

[0014] Preferably, the network cable test and the sliding resistor area include a network cable tester and a sliding resistor, and a data interface of the network cable tester and a connecting contact of the sliding resistor are arranged on a panel of the network cable test and the sliding resistor area; the leakage test area includes a leakage detector, and a data interface, a display window, operation buttons and a function switching turntable of the leakage detector are arranged on a panel of the leakage test area, and the leakage detector is connected with the PLC.

[0015] Preferably, a plurality of relay detection units are arranged on the panel of the relay detection area, each relay detection unit comprises a connector board, a coil terminal, a normally open terminal and a normally closed terminal, both ends of the coil terminal, the normally open terminal and the normally closed terminal are provided with a data interface, the coil, the normally open point and the normally closed point are connected with an indicating lamp; the connector board is connected with a relay base to be detected, the data interfaces at both ends of the coil terminal are connected with a coil of the relay to be detected, one data interface at both ends of the normally open terminal and the normally closed terminal is connected with a positive pole of a data interface of an adjustable direct current power supply, one data interface at both ends of the normally open terminal and the normally closed terminal is connected with the indicating lamp, and the indicating lamp is connected with a negative pole of the data interface of the adjustable direct current power supply; the panel of the relay detection area is further provided with a data interface of a fuse detection.

[0016] Compared with the prior art, the utility model has the advantages that solve the problem of lacking professional electrical element detection equipment on site, help to improve equipment reliability and service life, ensure that equipment operates under good working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, below will be to the drawings needed to be used in the embodiment or prior art description simple introduction, obviously, below description in the drawings only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the structural schematic diagram of the utility model.

[0019] Figure 2 It is the schematic diagram of the function panel distribution of the utility model.

[0020] Figure 3 It is the schematic diagram of the power supply of the utility model.

[0021] In the drawing, 1 is box cover, 2 is display screen, 3 is box, 4 is storage box, 5 is power area, 6 is direct current detection area, 7 is network cable test and sliding resistance area, 8 is leakage test area, 9 is AC detection area, 10 is relay detection area. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Embodiment 1

[0024] As Figure 1 shown, the utility model discloses a portable heading machine electrical element detection device, including detection box, detection box includes lid 1 and box 3, the inside of the front of lid 1 is provided with the display screen 2 for showing the detection data. The lower side of one side of lid 1 is hinged with box 3, and the other side of lid 1 is connected with box 3 through a clamping piece, which facilitates the opening and buckling of lid 1 and box 3. One side of the inside of box 3 is provided with a storage box 4 for storing dismounting tools, and the inside of box 3 is provided with a PLC and a power supply, i.e., a power module. The PLC is used to control the detection of each detection area on the test panel and the collection of data, and the power supply is used to supply power to the PLC and each detection area. The right side of storage box 4 is provided with a test panel, and the test panel on the middle part of box 3 is provided with a power area 5, a direct current detection area 6, a network cable test and sliding resistance area 7. The test panel on the right side of box 3 is provided with a leakage test area 8, an alternating current detection area 9 and a relay detection area 10. The PLC is connected with the display screen 2, the power area 5, the direct current detection area 6, the network cable test and sliding resistance area 7, the leakage test area 8, the alternating current detection area 9 and the relay detection area 10 respectively. The lid 1 is provided with a display screen power interface and a display screen data interface for data transmission with the PLC. The display screen power interface and the display screen data interface are connected with the display screen, and the connection line of the PLC drawn from the inside of the box 3 is connected with the data interface, so as to realize the display of detection data. The switch power supply in the box 1 provides power for the display screen 2 through the display screen power interface. The power area 5 is used to supply power to other detection areas, comprehensive protection and power start-stop. The direct current detection area 6 is used to detect the direct current voltage and direct current of components. The network cable test and sliding resistance area 7 is used to provide network cable test and sliding resistance. The leakage test area 8 is used to perform leakage test. The alternating current detection area 9 is used to test the alternating current voltage and alternating current of components. The relay detection area 10 is used to detect each relay. Figure 3As shown, the external power supply is connected to the 220V incoming line switch of the power supply area 5 through the detection box incoming line, and the power supply area 5 is connected with the DC detection area 6, the network test and sliding resistance area 7, the leakage test area 8, the AC detection area 9, and the relay detection area 10 respectively to realize power supply. The detection interface is arranged on the power supply area 5, the DC detection area 6, the network test and sliding resistance area 7, the leakage test area 8, the AC detection area 9, and the relay detection area 10 to realize the connection with the electrical components to be detected.

[0025] The utility model discloses through the configuration and input and output data interface of internal power supply circuit, can respond to the functional detection of electrical component fault on the heading machine. Using this detection box, the electrical components of heading machine can be detected quickly, and it is favorable to the maintenance of components, and the specific reason of the fault can be analyzed by the detection personnel conveniently;And the utility model discloses can be used flexibly under complex environment, when there are multiple potential fault points, the fault range can be positioned quickly, each fault point is investigated gradually according to the priority order, the operability and the repair efficiency are improved, and it has obvious positive effect to promote the upgrading and effective utilization of electrical equipment component fault diagnosis of shield machine.

[0026] Example 2

[0027] As Figure 2 shown, the utility model discloses a portable heading machine electrical component detection device, and the power supply area 5 is arranged at the upper right part of the test panel, and the detection panel of the power supply area 5 is equipped with an emergency stop button, a power supply total incoming line switch, a 220V outgoing line switch, an AC220V outgoing line interface and an adjustable DC power supply detection interface, and the adjustable DC power supply detection interface is connected with the component to be detected. The emergency stop button is connected with the detection box incoming line, and the emergency stop button is connected with the power supply total incoming line switch, and the power supply total incoming line switch is connected with the comprehensive protection module. As Figure 3 shown, the AC220V power supply total incoming line of the detection box is connected with the comprehensive protection module through the power supply total incoming line switch, the comprehensive protection module is directly connected with the adjustable DC power supply through the DC switch, the comprehensive protection module is connected with the 220V outgoing line switch, and the 220V outgoing line switch is connected with the AC220V power supply outgoing line and the leakage test area 8 respectively. The 220V AC power supply outgoing line is directly used to supply power to the electrical components through the 220V outgoing line switch. The 220V power supply of the detection box is controlled through the detection box incoming line, the power supply total incoming line switch, that is, the 220V incoming line switch of the AC220V power supply, and the emergency stop button is arranged to perform emergency control on the power supply of the detection box. The emergency stop button and the comprehensive protection module realize the protection of the following circuit, and the power supply can be disconnected in time when the emergency stop button is pressed or short circuit, overload and leakage fault occur.

[0028] The box 3 is provided with a 220V-to-24V switching power supply, a 220V-to-12V switching power supply and an adjustable DC power supply. The adjustable DC power supply is connected with an adjustable DC power supply detection interface, so as to realize the connection between the to-be-detected component and the adjustable DC power supply. Figure 3 As shown in FIG. 6, the comprehensive protection module is connected with the 220V-to-24V switching power supply, so as to realize the power supply of the 220V-to-24V switching power supply. The 220V-to-24V switching power supply is connected with the PLC, the relay detection area 10 and the display screen power supply interface respectively. The 220V-to-24V switching power supply placed in the box is connected with the PLC for power supply, and also supplies power for the display screen. The adjustable DC power supply is used to provide adjustable power for the detection component. The range of 0-60V can meet the power demand of most low-voltage components. Figure 2 As shown in FIG. 7, the upper side of the adjustable DC power supply detection interface is provided with a DC switch. The adjustable DC power supply is connected with the comprehensive protection module through the DC switch. The 220V-to-12V switching power supply is connected with the DC detection area 6, the network cable test and the sliding resistance area 7, and the AC detection area 9 respectively, so as to convert 220V AC power into 12V DC power for power supply.

[0029] The DC power supply signal terminal of the adjustable DC power supply is connected with the PLC. The voltage value of the adjustable DC power supply can be displayed on the display screen in real time through the PLC. The AC / DC conversion circuit in the adjustable DC power supply includes a rectifier. The rectifier is electrically connected with the PLC. The adjustable DC power supply is connected with the I / O port of the PLC when needed, and is used as an analog voltage signal source. The rectifier can integrate the output current in the circuit to form DC power.

[0030] The number of the adjustable DC power supply is 2, and the range is 0-60V. L+ and N- are adjustable DC power supply detection interfaces of the adjustable DC power supply for 0-60V DC voltage output detection, and are used as 0-60V DC voltage output interfaces. In the 0-60V DC voltage output detection, L+ and N- are connected with the positive electrode and the negative electrode of the to-be-detected component respectively. The PLC can receive 0-10V voltage as an analog signal. The analog control signal output by the PLC can be used to control the amplification board, the frequency converter and other driving components. Different voltage values are output, and the size of the action of the driving components is observed.

[0031] The integrated protection module is built-in current transformer. When the circuit occurs leakage, the magnetic field generated by the fire line and the zero line cannot be completely offset. The more serious the leakage is, the greater the electric signal generated by the leakage induction is. When the leakage reaches a certain degree, the trip device inside the integrated protection module will trip to realize the leakage protection. The trip device is connected in series in the main circuit to realize the disconnection of the main circuit when tripping. The integrated protection module is built-in sampling resistor to realize the overload protection according to the principle that the resistance of the conductor increases with the increase of temperature. The short-circuit protection is generally realized by connecting the fuse in series. When the system is short-circuited, the current instantaneously increases to reach the fuse breaking current, and then the fuse is disconnected to realize the short-circuit protection.

[0032] The 0-60V adjustable DC power supply in the box body 3 can provide power supply for most low-voltage electrical elements used by the shield / TBM, and facilitate the testing of the functions of the components. The AC 220V power supply main line is connected to the 220V incoming line switch, and then connected to the adjustable DC power supply of the power supply area 5, the 220V to 12V switching power supply and the 220V to 24V switching power supply placed inside the box body, and the 220V outgoing line switch through the integrated protection module. The 220V to 12V switching power supply is connected to the internal 12V branch terminal block, and respectively supplies power to the DC detection area 6, the network test and sliding resistance area 7, and the AC detection area 9. The 220V outgoing line switch is connected to the internal 220V branch terminal block, one of which supplies power to the leakage detection area 8, and the other of which provides a 220V outgoing line interface. The relay detection area 10 can use the 220V outgoing line interface and the detection interface of the 0-60V adjustable DC power supply to supply power according to different working voltages of the relay coil. The relay coil power supply and the normally open and normally closed points are provided with detection interfaces.

[0033] The voltage and current detection circuit is provided in the DC detection area 6 and the AC detection area 9, which includes a voltmeter, an ammeter and a power valve block. The ammeter and the power valve block are connected in series and connected with the PLC through wires, and the voltmeter is connected with the power valve block in parallel through wires. The voltage value of the power valve block can be checked through the voltmeter, and the current value in the power valve block circuit can be checked through the ammeter. The DC detection area 6 includes a DC voltmeter and a DC ammeter, and the DC voltmeter and the DC ammeter are connected with the PLC, so as to transmit the detected information to the display screen 2. The AC detection area 9 includes an AC voltmeter and an AC ammeter, and the AC voltmeter and the AC ammeter are connected with the PLC. The data interface of the power valve block is connected with the voltage meter and the current meter to realize the connection of the detection elements. The data interface and the voltage window and the current window for displaying the measured value are provided on the panel of the DC detection area 6 and the AC detection area 9, and the data interface is connected with the electrical element to be detected. The voltage window and the current window can display the detected values.

[0034] In the direct current meter, direct voltage meter, alternating current meter and alternating voltage meter, the corresponding different range of voltage and current can be detected respectively, so as to meet the measurement of different levels of voltage and current of field equipment. The detection panel of the direct current detection area 6 is provided with a data interface for 0-100V DC voltage input detection, and the lower side of the direct current meter is provided with a data interface for 0-2000mA DC current input detection. The range of the alternating voltage meter for detecting alternating voltage is 0-1000V, and the range of the alternating current meter for detecting alternating current is 0-300A, a data interface for 0-1000V AC voltage input detection, and a data interface for 0-300A AC current input detection.

[0035] The network cable test and sliding rheostat area 7 includes a network cable tester and a sliding rheostat, the network cable tester is provided with a data interface for network cable disconnection and line sequence fault detection, the RJ45 interface thereon is an ordinary 8-core network cable interface, and a plurality of data interfaces can simultaneously test two network cable interfaces. The network cable tester is not connected with the PLC, and when a 0-10V analog signal is required to be input, the sliding rheostat can be used as a knob for signal adjustment. One side of the sliding rheostat is provided with a data interface for providing adjustable resistance, wherein O and 1000 are the two ends of the sliding rheostat, i.e. the maximum resistance, and M is the middle sliding contact point, indicating the variable resistance.

[0036] The leakage test area 8 includes a leakage detector, and the leakage detector is provided with a data interface for leakage detection on the side, wherein L and E represent the measurement connection interface, the button is a display screen operation button of the leakage detector, the disc is a function switching turntable, and three action current test positions are switched.

[0037] The relay detection area 10 comprises a relay detection module, the relay detection module comprises a plurality of relays, both ends of the coil terminal, the normally open terminal and the normally closed terminal of the relay are provided with a data interface, and the coil, the normally open point and the normally closed point of the relay are connected with an indicating lamp. The relay detection module does not need to be connected with the PLC, only needs to be connected to the indicating lamp, and whether the relay is attracted can be judged according to the light and the extinction of the indicating lamp. The general type of the relay commonly used in the shield tunneling machine and the TBM device is selected, the relay base is fixed on the relay detection module through the connector board, and the corresponding voltage is provided below the connector board and connected with a line. According to the rated voltage of the detected relay, the relay power supply A1 and A2 have a reserved power supply interface on the panel, and wiring is arranged below the interface. The terminal of the relay comprises the normally open terminal, the normally closed terminal, the normally open (or normally closed) two points, one point is connected with a 0-60V adjustable power supply (adjusted to 24V), and the other end is connected with an indicating lamp (normally open point indicating lamp, normally closed point indicating lamp). When the coil is not faulty, the coil is attracted, the normally open point indicating lamp is lighted, and the normally closed point indicating lamp is extinguished. If the coil is damaged, there is no response, the coil can be plugged on the relay base, and the detection is convenient to remove. The relay base can be conveniently removed, the base to be detected is replaced, after replacement, the coil is powered on for testing, and the good or bad of the relay base can be detected. The fuse module is designed with a connection interface, and the fuse can be connected according to the needs of different circuits, or the power supply can be connected, and the good or bad of the fuse can be detected. When the PLC is connected to the input signal, the fuse needs to be connected in series to prevent the PLC module from being burnt out.

[0038] The utility model discloses a box body internal test panel is provided with power module and power protection module, and power protection module includes comprehensive protection module and emergency stop button, all distributes in power area 5, and the data interface, ammeter and voltmeter, direct current power supply for detecting shield tunneling machine electrical component fault are all arranged on the test panel.

[0039] Through above functional module, most component faults during equipment operation can be detected, because the detection module is plugged and connected, most wiring time is saved, the component fault can be quickly detected, and the equipment maintenance efficiency is improved.

[0040] The utility model discloses the detection tool of commonly used electrical component in shield tunneling machine and TBM is integrated into a detection box, compact structure, complete function, convenient to carry, and the detection positioning and maintenance of each electrical component fault are convenient for construction site in time.

[0041] Other structures are same with embodiment 1.

[0042] Embodiment 3

[0043] A portable tunneling machine electrical element detection device, the display screen 2 is a touch screen, using the common finished touch screen on the market, the data interface of the touch screen is connected with the PLC, the user can switch and observe the detection box voltage and current, internal fault information and other data by directly touching the screen.

[0044] In the design scheme of the detection box, different parts except the power module can be modularly designed, including the DC detection area 6, the network test and sliding resistance area 7, the leakage test area 8, the AC detection area 9, and the relay detection area 10, several areas are designed as an integrated detachable module, the power input interface is added on the panel, the power line including the internal circuit is connected well in the module, the function of the detection box is increased by increasing the number of modules, but the modular design needs to provide corresponding power supply for different modules when used, the power supply is provided through the DC output interface of the 0-60V adjustable DC power supply of the power module and the AC220V power supply outlet interface, the modular design makes the use of the detection box more flexible, and the detection module can be carried according to the actual situation.

[0045] The other structures are the same as those in embodiment 2.

[0046] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A portable roadheader electrical component testing device, comprising a testing box, the testing box comprising a box cover (1) and a box body (3), the box cover (1) and the box body (3) being hingedly connected, characterized in that, The box cover (1) is provided with a display screen (2), the box body (3) is provided with a test panel, the box body (3) is provided with a power supply and a PLC, the power supply is connected with the test panel, the PLC is connected with the display screen and the test panel respectively, the test panel is provided with a data interface, and the data interface is connected with an electrical element to be tested.

2. The portable jumbo electrical component detection device according to claim 1, characterized in that, The end of the box cover (1) and the box body (3) is clamped by a clamping piece; the box body (3) is provided with a storage box (4) on one side of the test panel.

3. The portable jumbo electrical component detection device according to claim 1 or 2, characterized in that, The test panel is provided with a power supply area (5), a direct current detection area (6), a network cable test and sliding resistance area (7), an electric leakage test area (8), an alternating current detection area (9) and a relay detection area (10), and the power supply area (5), the direct current detection area (6), the electric leakage test area (8) and the alternating current detection area (9) are connected with the PLC.

4. The portable jumbo electrical component detection device according to claim 3, characterized in that, The panel of the power supply area (5) is provided with a power supply total incoming line switch, a 220V outgoing line switch, an AC220V outgoing line interface and an adjustable direct current power supply detection interface, one end of the power supply total incoming line switch is connected with the detection box incoming line, the other end of the power supply total incoming line switch is connected with the 220V outgoing line switch and the power supply respectively, the 220V outgoing line switch is connected with the electric leakage test area (8) and the AC220V outgoing line interface respectively, and the adjustable direct current power supply detection interface is connected with the power supply.

5. The portable jumbo electrical component detection device according to claim 4, characterized in that, The panel of the power supply area (5) is further provided with an emergency stop button, the emergency stop button is connected with the power supply total incoming line switch and the detection box incoming line respectively; the power supply total incoming line switch is connected with a comprehensive protection module, and the comprehensive protection module is connected with the 220V outgoing line switch and the power supply respectively.

6. The portable roadheader electrical component detection device according to claim 4 or 5, characterized in that The power supply comprises an adjustable direct current power supply, a 220V-to-24V switching power supply and a 220V-to-12V switching power supply, and the adjustable direct current power supply is connected with the PLC; the adjustable direct current power supply is connected with the adjustable direct current power supply detection interface, and a display window of the adjustable direct current power supply is arranged on the panel of the power supply area (5); the adjustable direct current power supply is connected with the comprehensive protection module through a direct current switch, and the direct current switch is arranged on the panel of the power supply area (5); the 220V-to-24V switching power supply and the 220V-to-12V switching power supply are connected with the comprehensive protection module, the 220V-to-24V switching power supply is connected with the PLC, the relay detection area (10) and the display screen (2) respectively, and the 220V-to-12V switching power supply is connected with the direct current detection area (6), the network cable test and sliding resistance area (7) and the alternating current detection area (9).

7. The portable jumbo electrical component detection device according to claim 6, characterized in that, The display screen (2) is provided with a display screen power supply interface and a display screen data interface, the display screen power supply interface is connected with the 220V-to-24V switching power supply through a connecting line, and the display screen data interface is connected with the PLC; the number of the adjustable direct current power supply and the direct current switch is two, and the range of the adjustable direct current power supply is 0-60V.

8. The portable jumbo electrical component detection device according to claim 7, characterized in that, The direct current detection area (6) comprises a direct current voltmeter and a direct current ammeter, both of which are connected with the PLC; the alternating current detection area (9) comprises an alternating current voltmeter and an alternating current ammeter, both of which are connected with the PLC; the panel of the direct current detection area (6) and the alternating current detection area (9) is provided with a data interface and voltage and current windows for displaying measurement values, and the data interface is connected with the electrical element to be measured.

9. The portable roadheader electrical component detection device according to claim 7 or 8, characterized in that The network cable testing and sliding rheostat area (7) comprises a network cable tester and a sliding rheostat, and the data interface of the network cable tester and the connecting contact of the sliding rheostat are arranged on the panel of the network cable testing and sliding rheostat area (7); the electric leakage testing area (8) comprises an electric leakage detector, and the data interface, display window, operation button and function switching dial of the electric leakage detector are arranged on the panel of the electric leakage testing area (8), and the electric leakage detector is connected with the PLC.

10. The portable jumbo electrical component detection device according to claim 9, characterized in that, The panel of the relay detection area (10) is provided with a plurality of relay detection units, each of which comprises a connector board, a coil terminal, a normally open terminal and a normally closed terminal, both ends of the coil terminal, the normally open terminal and the normally closed terminal are provided with data interfaces, and the coil, the normally open point and the normally closed point are connected with an indicating lamp; the connector board is connected with the relay base to be detected, the data interfaces at both ends of the coil terminal are connected with the coil of the relay to be detected, one data interface at both ends of the normally open terminal and the normally closed terminal is connected with the positive pole of the data interface of the adjustable direct current power supply, one data interface at both ends of the normally open terminal and the normally closed terminal is connected with the indicating lamp, and the indicating lamp is connected with the negative pole of the data interface of the adjustable direct current power supply; the panel of the relay detection area (10) is further provided with a data interface for fuse detection.

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