Fault arc three-dimensional positioning detection robot

Abstract

The utility model discloses a fault arc three-dimensional positioning detection robot, which relates to the technical field of fault arc detection and comprises a machine body, a remote control car fixedly connected to the bottom of the machine body, a PLC (programmable logic controller) control panel fixedly connected to the side wall of the machine body, two handles fixedly connected to the top surface of the machine body, and a fault arc detector fixedly mounted on the side wall of the machine body. The top surface of the machine body is fixedly connected with a current transformer, the top of the machine body is provided with a clamping mechanism for clamping an electric wire, when a fault arc is detected, the detected electric wire may generate an electric leakage phenomenon, the PLC control panel can control the servo motor to drive the rubber rod to rotate, and the double-shaft motor rotates reversely to enable the two rubber clamping plates to be away from each other, so that the fault arc is detected. When the rubber rod rotates, the electric wire can be blocked and driven out of the current transformer, and at the moment, the remote control car is automatically started to run beyond one meter, so that the remote control car is far away from a detected line, and the technical problem that an existing fault arc device is easily damaged during fault arc detection is solved.

Description

Technical Field

[0001] This utility model relates to the field of fault arc detection technology, and in particular to a three-dimensional positioning and detection robot for fault arcs. Background Technology

[0002] With the continuous development of power electronics technology and the increasing level of electrification, circuit protection has become increasingly important. Arc faults are caused by aging or damage to the electrical insulation of wires, air breakdown due to humidity, or loose electrical connections. Arcs have high energy and are extremely dangerous, seriously threatening the safety of equipment and personnel. As accidents caused by arc faults become more and more prominent, the need for arc fault detection has become increasingly urgent. After detecting an arc fault, it is necessary to locate the damaged location, which requires the use of an arc fault detector.

[0003] Currently, most existing fault arc detectors achieve their effect using the following technologies;

[0004] Current waveform characteristic value detection technology: When a fault arc is generated, the current waveform will be distorted and will differ from the normal operating current waveform;

[0005] Voltage signal discrimination technology: When a fault arc occurs in a line, the voltage signal will fluctuate sharply, while under normal circumstances the voltage signal is relatively flat. Based on this characteristic, the presence of a fault arc can be determined by monitoring and analyzing the voltage signal in the line.

[0006] Ultra-high-speed computing chip technology: Utilizing ultra-high-speed computing chips for real-time monitoring of protected circuits. These chips can rapidly process acquired electrical signals, improving the detection speed and accuracy of fault arcs, and enabling a response to fault arcs in an extremely short time.

[0007] Intelligent algorithms and data analysis technology: Some fault arc detectors employ intelligent algorithms and data analysis technology to learn and analyze the large amount of data collected in order to improve the accuracy and reliability of fault arc detection.

[0008] Currently, existing methods for detecting fault arcs have been found to have at least the following technical problems in practical use;

[0009] Existing methods for detecting fault arcs mostly rely on fault arc detectors. However, if leakage occurs at the detection end during fault arc detection, it can endanger personnel and affect equipment safety. Furthermore, most existing fault arc detectors are fixedly installed, and when leakage occurs, the fault arc detector cannot detach from the tested wire in time, which can easily damage the fault arc detector. Utility Model Content

[0010] To address the shortcomings of existing technologies, this invention provides a three-dimensional positioning and detection robot for fault arcs, solving the problem that existing fault arc detectors are easily damaged during fault arc detection.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A three-dimensional positioning and detection robot for fault arcs includes a body, an internal battery, an electronic control unit, and a cooling fan. A remote-controlled vehicle is fixedly connected to the bottom of the body, and a PLC control panel is fixedly connected to the side wall of the body. The remote-controlled vehicle is electrically connected to an external remote controller. Two handles are fixedly connected to the top of the body. A fault arc detector is fixedly installed on the side wall of the body. A current transformer is fixedly connected to the top of the body. A clamping mechanism for holding wires is provided on the top of the body. A servo motor is fixedly connected to one end of the body. The clamping mechanism includes a dual-axis motor, a driving bevel gear, a driven bevel gear, and a double-threaded lead screw.

[0013] Preferably, the top surface of the machine body has a storage slot, and a cover plate is hinged to the machine body at the location where the storage slot is located, and a hand slot is provided on the top surface of the cover plate.

[0014] Preferably, the top surface of the PLC control panel is fixedly connected to an antenna, and the top surface of the machine body has two sliding grooves.

[0015] Preferably, a rubber rod is fixedly connected to the output end of the servo motor.

[0016] Preferably, the dual-axis motor is fixedly connected to the side of the machine body away from the PLC control panel. A protective shell is fixedly connected to the machine body at the location where the dual-axis motor is located. The protective shell surrounds the dual-axis motor, and both ends of the dual-axis motor are fixedly connected to the drive bevel gear.

[0017] Preferably, there are two driven bevel gears, which mesh with two driving bevel gears respectively.

[0018] Preferably, there are two double-threaded lead screws, which are fixedly connected to two driven bevel gears respectively, and each double-threaded lead screw is threadedly connected to two clamping parts.

[0019] Preferably, the clamping components include a steel slider and a rubber clamping plate. The steel slider and the rubber clamping plate are fixedly connected. The surface of the steel slider is provided with a threaded hole. The steel slider is threadedly connected to a double-threaded screw through the threaded hole. The four clamping components are slidably connected to two slide grooves respectively. The dual-axis motor drives the active bevel gear to rotate, which drives the driven bevel gear to rotate. The driven bevel gear drives the double-threaded screw to rotate. The double-threaded screw drives the two steel sliders connected to it to move closer or further apart, thereby allowing the rubber clamping plates to move closer or further apart to clamp the wire.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When a leakage current is detected in a wire, the PLC control panel can control the servo motor to drive the rubber rod to rotate. At the same time, the dual-axis motor reverses to move the two rubber clamping plates away from each other. During the rotation of the rubber rod, the wire will be blocked and pushed out of the current transformer. At this time, the remote control car will automatically start and drive to a distance of more than one meter, thereby moving the device away from the tested line. This solves the technical problem that existing fault arc detectors are easily damaged when performing fault arc detection.

[0022] Second, this application has the advantage of being easy to use by providing a storage compartment, which can be used to place tools for repairing wires, making it convenient for maintenance personnel to access them in a timely manner. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a side view of the present invention.

[0026] Figure 3 This is a front view of the structure of this utility model;

[0027] Figure 4 This is a structural diagram of the clamping mechanism of this utility model.

[0028] Legend: 1. Body; 2. Fault arc detector; 3. Current transformer; 4. Remote control car; 5. Servo motor; 6. Cover plate; 7. Handle; 8. Clamping mechanism; 9. Protective shell; 101. PLC control panel; 102. Antenna; 103. Storage slot; 104. Slide groove; 501. Rubber rod; 601. Hand groove; 801. Dual-axis motor; 802. Driving bevel gear; 803. Driven bevel gear; 804. Double threaded screw; 805. Steel slider; 806. Rubber clamping plate. Detailed Implementation

[0029] This application provides a three-dimensional positioning and detection robot for fault arcs, which effectively solves the problem that existing fault arc detectors are easily damaged during fault arc detection.

[0030] Example

[0031] like Figure 1 ,Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that existing fault arc detectors are easily damaged during fault arc detection. The overall idea is as follows:

[0032] To address the problems existing in the prior art, this utility model provides a three-dimensional positioning and detection robot for fault arcs, including a body 1. The body 1 is internally equipped with a battery, an electronic control unit, and a cooling fan. A remote control vehicle 4 is fixedly connected to the bottom of the body 1. A PLC control panel 101 is fixedly connected to the side wall of the body 1. The remote control vehicle 4 is electrically connected to an external remote controller. Two handles 7 are fixedly connected to the top surface of the body 1. A fault arc detector 2 is fixedly installed on the side wall of the body 1. A current transformer 3 is fixedly connected to the top surface of the body 1. A clamping mechanism 8 for clamping wires is provided on the top of the body 1. A servo motor 5 is fixedly connected to one end of the body 1. The clamping mechanism 8 includes a dual-axis motor 801, a driving bevel gear 802, a driven bevel gear 803, and a double-threaded lead screw 804.

[0033] The top surface of the body 1 is provided with a storage slot 103. A cover plate 6 is hinged to the body 1 at the location where the storage slot 103 is provided. A hand slot 601 is provided on the top surface of the cover plate 6.

[0034] An antenna 102 is fixedly connected to the top surface of the PLC control panel 101, and two sliding grooves 104 are provided on the top surface of the body 1.

[0035] A rubber rod 501 is fixedly connected to the output end of the servo motor 5.

[0036] The dual-axis motor 801 is fixedly connected to the side of the machine body 1 away from the PLC control panel 101. The machine body 1 is fixedly connected to a protective shell 9 at the position where the dual-axis motor 801 is located. The protective shell 9 surrounds the dual-axis motor 801. Both ends of the dual-axis motor 801 are fixedly connected to the drive bevel gear 802.

[0037] There are two driven bevel gears 803, and the two driven bevel gears 803 are respectively engaged with the two driving bevel gears 802.

[0038] There are two double-threaded lead screws 804. The two double-threaded lead screws 804 are fixedly connected to two driven bevel gears 803 respectively. Both double-threaded lead screws 804 are threadedly connected to two clamping parts.

[0039] The clamping components include a steel slider 805 and a rubber clamping plate 806. The steel slider 805 and the rubber clamping plate 806 are fixedly connected. The surface of the steel slider 805 is provided with a threaded hole. The steel slider 805 is threadedly connected to the double-threaded screw 804 through the threaded hole. The four clamping components are slidably connected to two sliding grooves 104 respectively. The dual-axis motor 801 drives the active bevel gear 802 to rotate. The active bevel gear 802 drives the driven bevel gear 803 to rotate. The driven bevel gear 803 drives the double-threaded screw 804 to rotate. The double-threaded screw 804 drives the two steel sliders 805 connected to it to move closer or further apart, thereby allowing the rubber clamping plate 806 to move closer or further apart to clamp the wire.

[0040] Main body 1: Serves as the basic support structure for the entire device, used to install other components, and provides installation space for batteries, electronic control units, cooling fans, etc.

[0041] Fault arc detector 2: Electrically connected to current transformer 3, it works with the current transformer 3 to detect the location of the fault arc and displays the detection result on the PLC control panel 101 to show the distance between the fault location and the measured end.

[0042] Current transformer 3: senses whether there is an abnormality in the current of the wire under test, and provides current information for the fault arc detector 2 to detect fault arcs.

[0043] Servo motor 5: When the fault arc detector 2 senses a fault arc at a very close position, the PLC control panel 101 controls it to drive the rubber rod 501 to rotate, thus knocking the wire out of the current transformer 3.

[0044] Cover 6: Hinged to the storage compartment 103 of the body 1, it can protect the items in the storage compartment 103. The hand groove 601 on the top surface makes it easy to open the cover 6.

[0045] Handle 7: Fixed to the top surface of the body 1 for easy movement and transport.

[0046] Clamping mechanism 8: Used to clamp wires, including components such as dual-axis motor 801, driving bevel gear 802, driven bevel gear 803 and double threaded screw 804, which can make the rubber clamping plates 806 move closer or further apart to achieve clamping and releasing of wires.

[0047] Protective shell 9: Fixed at the location where the dual-axis motor 801 is set on the machine body 1, surrounding the dual-axis motor 801 and serving to protect the dual-axis motor 801.

[0048] PLC control panel 101: Fixed to the side wall of the machine body 1, used to display the location of the fault arc and the distance to the measured end, and can also control the action of servo motor 5 and dual-axis motor 801.

[0049] Antenna 102: Fixed to the top surface of PLC control panel 101, possibly used to enhance signal transmission.

[0050] Storage slot 103: Located on the top surface of the machine body 1, it can be used to store some tools or items.

[0051] Slide 104: Located on the top surface of the body 1, it provides a sliding track for the steel slider 805, allowing the clamping parts to move stably under the drive of the double threaded screw 804.

[0052] Rubber rod 501: Fixed to the output end of servo motor 5, it rotates under the drive of servo motor 5 to drive the wire out from the current transformer 3.

[0053] Hand groove 601: It is located on the top surface of cover plate 6, making it convenient for users to open cover plate 6 by hand.

[0054] Dual-axis motor 801: Fixed on the side of the machine body 1 away from the PLC control panel 101, serving as a power source to drive the active bevel gear 802 to rotate.

[0055] Driven bevel gear 802: Fixed at both ends of the dual-shaft motor 801, it transmits the power of the dual-shaft motor 801 to the driven bevel gear 803.

[0056] Driven bevel gear 803: meshes with driving bevel gear 802 and rotates under the drive of driving bevel gear 802, thereby driving the double threaded screw 804 to rotate.

[0057] Double threaded screw 804: It is fixedly connected to the driven bevel gear 803. When it rotates, it drives the steel slider 805, which is threadedly connected to it, to move, so that the rubber clamping plates 806 move closer or further apart.

[0058] Steel slider 805: It is threadedly connected to double threaded screw 804 through threaded hole and fixedly connected to rubber clamping plate 806. Under the drive of double threaded screw 804, it slides in slide groove 104 to realize the clamping and releasing of wire.

[0059] Rubber clamping plate 806: It is fixedly connected to the steel slider 805. When they are close together, they can clamp the wires and when they are far apart, they can release the wires.

[0060] Working principle:

[0061] The first step involves inserting the wire under test into the current transformer 3 while the power is off, and then turning the power on again. The current transformer 3 senses whether there is an abnormality in the current of the wire under test. The fault arc detector 2 is electrically connected to the current transformer 3, so that the fault arc detector 2 works with the current transformer 3 to detect the location of the fault arc. When the fault arc detector 2 detects the fault arc, the distance between the fault location and the end under test is displayed on the PLC control panel 101, thus achieving the effect of locating the fault arc. Finally, the maintenance personnel inspect the fault arc.

[0062] The second step involves detecting a fault arc. The tested wire may leak current. When the fault arc detector 2 senses a fault arc at a very close distance (within one meter of the current transformer 3), the tested wire may damage the fault arc detector 2 and the entire device. At this time, there is no need for manual power disconnection. The PLC control panel 101 can control the servo motor 5 to drive the rubber rod 501 to rotate. At the same time, the dual-axis motor 801 reverses to move the two rubber clamping plates 806 away from each other. During the rotation of the rubber rod 501, it will block the wire and knock the wire out of the current transformer 3. At this time, the remote control car 4 will automatically start and drive to a distance of more than one meter, thereby keeping the tested wire away from the circuit.

[0063] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A three-dimensional positioning and detection robot for fault arcs, comprising a body (1), wherein a remote-controlled vehicle (4) is fixedly connected to the bottom of the body (1), and a PLC control panel (101) is fixedly connected to the side wall of the body (1), characterized in that, Two handles (7) are fixedly connected to the top surface of the body (1), a fault arc detector (2) is fixedly installed on the side wall of the body (1), a current transformer (3) is fixedly connected to the top surface of the body (1), a clamping mechanism (8) for clamping wires is provided on the top of the body (1), and a servo motor (5) is fixedly connected to one end of the body (1). The clamping mechanism (8) includes a dual-axis motor (801), a driving bevel gear (802), a driven bevel gear (803), and a double-threaded lead screw (804).

2. The fault arc three-dimensional positioning and detection robot as described in claim 1, characterized in that: The top surface of the body (1) is provided with a storage slot (103), and a cover plate (6) is hinged to the body (1) at the location where the storage slot (103) is provided. The top surface of the cover plate (6) is provided with a hand slot (601).

3. The fault arc three-dimensional positioning and detection robot as described in claim 2, characterized in that: An antenna (102) is fixedly connected to the top surface of the PLC control panel (101), and two sliding grooves (104) are provided on the top surface of the body (1).

4. The fault arc three-dimensional positioning and detection robot as described in claim 3, characterized in that: A rubber rod (501) is fixedly connected to the output end of the servo motor (5).

5. The fault arc three-dimensional positioning and detection robot as described in claim 4, characterized in that: The dual-axis motor (801) is fixedly connected to the side of the machine body (1) away from the PLC control panel (101). The machine body (1) is fixedly connected to a protective shell (9) at the position where the dual-axis motor (801) is located. The protective shell (9) surrounds the dual-axis motor (801). Both ends of the dual-axis motor (801) are fixedly connected to a drive bevel gear (802).

6. The fault arc three-dimensional positioning and detection robot as described in claim 5, characterized in that: There are two driven bevel gears (803), and the two driven bevel gears (803) respectively mesh with the two driving bevel gears (802).

7. The fault arc three-dimensional positioning and detection robot as described in claim 6, characterized in that: There are two double-threaded lead screws (804), and the two double-threaded lead screws (804) are respectively fixedly connected to the two driven bevel gears (803). Both double-threaded lead screws (804) are threadedly connected to two clamping members.

8. The fault arc three-dimensional positioning and detection robot as described in claim 7, characterized in that: The clamping components include a steel slider (805) and a rubber clamping plate (806). The steel slider (805) and the rubber clamping plate (806) are fixedly connected. The surface of the steel slider (805) is provided with a threaded hole. The steel slider (805) is threadedly connected to a double-threaded screw (804) through the threaded hole. The four clamping components are slidably connected to the two slide grooves (104) respectively.

Images