Power line loss analysis device

Abstract

The invention discloses a power line loss analysis device, and belongs to the technical field of line loss detection, the power line loss analysis device comprises a front walking part and a rear walking part with the same structure, and a connecting part connected between the front walking part and the rear walking part, the front side of the front walking part is provided with a cleaning part, and the connecting part is provided with a line loss detection part; the front walking part comprises a U-shaped bottom frame, U-shaped side frames, walking wheels and a walking motor, a sliding groove is formed in the inner side of the U-shaped bottom frame, a screw is arranged in the sliding groove, threads on the two sides of the screw are opposite, the two ends of the screw are rotationally connected with the two sides of the U-shaped bottom frame respectively, handle wheels are arranged at the ends of the screw, the two sides of the screw are each in threaded connection with a sliding block, and the U-shaped side frames are arranged above the two sliding blocks. Walking wheels are rotatably arranged in the two U-shaped side frames, and the walking wheels are driven by walking motors arranged on the tops of the U-shaped side frames. According to the invention, partial discharge and insulation skin abnormity of the overhead line cable can be accurately detected, the line loss abnormal position can be conveniently determined, and maintenance is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of line loss detection, and in particular to a power line loss analysis device. Background Art

[0002] Line loss, referred to as line loss, is the energy loss caused by the transmission of electric energy through transmission lines. After long-term use, overhead transmission lines will experience insulation damage, partial discharge, etc., which will lead to increased heat loss. Therefore, it is necessary to analyze the causes of abnormal line loss in order to facilitate line maintenance and repair. In the actual maintenance process, for transmission lines with abnormal line loss, first use a line loss analysis device to analyze and check the transmission line parameters, determine the abnormal section line, and then manually detect and maintain the section line. However, this method consumes a lot of manpower and has poor accuracy.

[0003] The patent document with publication number CN 118011126 A discloses a power line loss analysis device, including a clamping mounting part, on which two mobile mounting parts are fixedly mounted; the two mobile mounting parts are respectively fixedly mounted with driving connecting parts; the two mobile mounting parts are respectively connected with docking rotating mounting parts by bolts; the two docking rotating mounting parts are slidably mounted with rotary driving parts, which can ensure that the subsequent circumferential detection work can be carried out, and the comprehensiveness of cable detection can be ensured. The structure is simpler and more reasonable, and can effectively prevent detection omissions, and is more practical; it solves the problem that the current line loss analysis device is not convenient for self-propelled mobile detection of line loss, the detection and analysis cost is high, and it is not convenient to realize comprehensive line loss detection of cables, it is very easy to omission, and it is not convenient to assist in real-time accurate marking, which affects the efficiency and accuracy of line loss analysis. However, when the line loss is detected in this invention, the detection component is located in front of the walking component, and the cable is not cleaned, resulting in low detection accuracy. Summary of the invention

[0004] In view of this, the present invention aims at the deficiencies of the prior art and provides a power line loss analysis device, which can accurately detect partial discharge and insulation skin abnormalities of overhead line cables, facilitate the determination of the abnormal line loss location, and further facilitate maintenance.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an electric power line loss analysis device, comprising front and rear traveling parts with the same structure, and a connecting part connected between the front and rear traveling parts, a cleaning part is arranged on the front side of the front traveling part, and a line loss detection part is arranged on the connecting part; the front traveling part comprises a U-shaped base frame, a U-shaped side frame, traveling wheels and a traveling motor, a slide groove is arranged on the inner side of the U-shaped base frame, a screw rod is arranged in the slide groove, the threads on both sides of the screw rod are opposite, the two ends of the screw rod are respectively rotatably connected to the two sides of the U-shaped base frame, and handle wheels are arranged at the ends, a slider is threadedly connected on both sides of the screw rod, a U-shaped side frame is arranged above the two sliders, and traveling wheels are rotatably arranged in the two U-shaped side frames, and the traveling wheels are driven by a traveling motor arranged on the top of the U-shaped side frame.

[0006] Furthermore, the connecting component includes four connecting rods, and the four connecting rods are all connected between the U-shaped side frames of the front and rear walking components.

[0007] Furthermore, the line loss detection component includes a partial discharge detection component, an insulation skin abnormality detection component, a GPS locator and a controller, and the partial discharge detection component, the insulation skin abnormality detection component and the GPS locator are all connected to the controller signal.

[0008] Furthermore, the partial discharge detection assembly includes a vertical rod, a mounting seat and a clamp-type leakage detector. The vertical rod is connected between two connecting rods on one side. The mounting seat is set on one side of the vertical rod, and one end of the clamp-type leakage detector is fixed in the mounting seat.

[0009] Furthermore, the insulation skin abnormality detection component includes two semicircular rods, the outer sides of the two semicircular rods are respectively connected to the two connecting rods on the same side through two bending rods, and multiple detection parts are arranged on the inner sides, and the detection parts include a pressure wheel, an axle rod, a spring and a pressure sensor. Multiple mounting holes are opened on the semicircular rods, and limit rings are arranged on the edges of both sides of the mounting holes. One end of the axle rod passes through the mounting hole, and the other end is connected to the pressure wheel. A limit plate is arranged on the part of the axle rod located in the mounting hole, and a spring is sleeved. One end of the spring is fixedly connected to the limit plate, a connecting cap is arranged on the outer side of the mounting hole, and a pressure sensor is arranged in the connecting cap. The pressure sensor is connected to the controller signal.

[0010] Furthermore, the cleaning component includes a shell, a semicircular cleaning plate, a half gear and a cleaning motor. The shell is connected to the upper side of the U-shaped base frame of the front walking component through two L-shaped connecting parts. A semicircular cleaning plate and two half gears are arranged inside the shell. Gear teeth are arranged on the upper surface of the semicircular cleaning plate, and bristles are arranged on the lower surface. The two half gears are asynchronously meshed with the two sides of the semicircular cleaning plate respectively. The half gears are driven by the cleaning motor. Arc grooves are provided on the front and rear sides of the semicircular cleaning plate, and cylindrical limit blocks are arranged on both sides of the shell. The cylindrical limit blocks are slidably connected with the arc grooves.

[0011] Furthermore, the connecting component also includes two supporting wheels, and two supporting rods are hinged on the upper part of each supporting wheel, and the two supporting rods are movably connected to the two connecting rods on the upper side respectively.

[0012] Furthermore, both handle wheels are provided with screw holes, and locking bolts are threadedly connected in the screw holes.

[0013] Furthermore, the L-shaped connecting piece includes a cross bar, a sleeve and a vertical pole. One end of the cross bar is fixedly connected to the front side of the U-shaped base frame, and a sleeve is vertically arranged at the other end. A threaded hole is opened on the side of the sleeve, and a locking bolt is arranged in the threaded hole. The lower end of the vertical pole passes through the sleeve and is fixed by the locking bolt.

[0014] Furthermore, a hinge seat is arranged on the top of the support wheel, circular holes are arranged on the bottom of the two support rods, and both are detachably connected to the hinge seat through pins or bolts, and sleeves are arranged on the top of the two support rods, and the sleeves are sleeved on the connecting rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the power line loss analysis device of the present invention, a connecting component is arranged between the front and rear traveling components, a line loss detection component is arranged on the connecting component, and a cleaning component is arranged on the front side of the front traveling component. When the power line loss analysis device travels on the overhead line cable, the front and rear traveling components can straighten the cable therebetween, and the cleaning component on the front side can clean up dust, bird droppings and other debris on the surface of the cable, thereby improving the accuracy of the line loss detection component in detecting the cable.

[0017] 2. In the power line loss analysis device of the present invention, two U-shaped side frames are movably arranged on the upper side of the U-shaped base frame in the front and rear traveling parts. By rotating the handle wheels on both sides, the two U-shaped side frames can approach each other so that the traveling wheels on the inner sides thereof clamp the cable to achieve stable traveling. The four connecting rods of the connecting parts connect the U-shaped side frames of the front and rear traveling parts so that the front and rear traveling parts are synchronously connected, and an installation position of the line loss detection part is reserved between the two.

[0018] 3. In the power line loss analysis device of the present invention, in the line loss detection components, the partial discharge detection component adopts a clamp-type leakage detector as the main detection element, which is used to detect the partial discharge of the cable. After the partial discharge is detected, the information is sent to the controller, and the controller records the position information of the place for subsequent maintenance. A vertical pole is arranged between the upper and lower connecting rods on one side, and a mounting seat is arranged on the vertical pole. One end of the clamp-type leakage detector is installed in the mounting seat, and the other end can be opened to facilitate the cable to pass through; the insulation skin abnormality detection component can detect abnormal conditions such as damage or bulging of the cable insulation skin. The multiple pressure wheels on the inner side of the two semicircular rods are in contact with the cable. When an abnormality occurs somewhere, the outer end of the shaft rod is in contact with the pressure sensor. The pressure sensor sends information to the controller and records the location, thereby realizing the location of the abnormal line loss position.

[0019] 4. In the power line loss analysis device of the present invention, in the cleaning component, the shell is connected to the outer side of the U-shaped chassis of the front walking component through two L-shaped connecting pieces, and the semicircular cleaning plate in the shell can move along the semicircle under the joint action of the cylindrical limit block and the arc-shaped slide groove; moreover, gear teeth are arranged on the outer surface of the semicircular cleaning plate, and the half gears on both sides are asynchronously meshed with the gear teeth. Therefore, the semicircular cleaning plate can reciprocate around the center of the semicircular cleaning plate under the drive of the two half gears, so that the bristles on the inner surface of the semicircular cleaning plate can clean the foreign matter on the cable surface, avoid interference with the detection of the partial discharge detection component and the insulation skin abnormality detection component, and ensure the accuracy of line loss detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view of an embodiment of the present invention;

[0021] Figure 2 is a side view of the front traveling component in an embodiment of the present invention;

[0022] Figure 3 is a side view of a connecting component in an embodiment of the present invention;

[0023] Figure 4 is a side view of a partial discharge detection assembly in an embodiment of the present invention;

[0024] Figure 5 is a side view of an insulation skin abnormality detection component in an embodiment of the present invention;

[0025] Figure 6 yes Figure 5 A cross-sectional view of the part A in the middle;

[0026] Figure 7 is a side view of a cleaning component in an embodiment of the present invention;

[0027] Figure 8 is a front view of another embodiment of the present invention;

[0028] In the figure: 1-U-shaped base frame, 2-U-shaped side frame, 3-travel wheel, 4-travel motor, 5-handle wheel, 6-slider, 7-connecting rod, 8-support wheel, 9-cable, 10-support rod, 11-sleeve, 12-vertical rod, 13-mounting seat, 14-clamp-type leakage detector, 15-semicircular rod, 16-bending rod, 17-pressure wheel, 18-axis rod, 19-spring, 20-pressure sensor, 21-limiting ring, 22-limiting plate, 23-connecting cap, 24-housing, 25-semicircular cleaning plate, 26-half gear, 27-L-shaped connector, 28-gear teeth, 29-brush, 30-arc slide, 31-locking bolt, 32-cross bar, 33-sleeve, 34-vertical rod, 35-locking bolt. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0030] Example: Figures 1 to 7 As shown, a power line loss analysis device comprises front and rear traveling parts with the same structure, and a connecting part connected between the front and rear traveling parts, a cleaning part is arranged on the front side of the front traveling part, and a line loss detection part is arranged on the connecting part; the front traveling part comprises a U-shaped base frame 1, a U-shaped side frame 2, a traveling wheel 3 and a traveling motor 4, a slide groove is arranged on the inner side of the U-shaped base frame 1, a screw is arranged in the slide groove, the threads on both sides of the screw are opposite, the two ends of the screw are rotatably connected to the two sides of the U-shaped base frame 1, and handle wheels 5 are arranged at the ends, a slider 6 is threadedly connected on both sides of the screw, and a U-shaped side frame 2 is arranged above the two sliders 6, and the traveling wheels 3 are rotatably arranged in the two U-shaped side frames 2, and the surface of the traveling wheel 3 is a concave arc surface, and the traveling wheel 3 is driven by the traveling motor 4 arranged on the top of the U-shaped side frame 2.

[0031] The connecting parts include four connecting rods 7, which are all connected between the U-shaped side frames 2 of the front and rear walking parts; and also include two support wheels 8, the surface of the support wheel 8 is an inwardly concave arc surface, the two support wheels 8 are arranged front and rear, and are both located above the cable 9, and the upper part of each support wheel 8 is hinged with two support rods 10, which can be hinged with a pin or a bolt, and the upper ends of the two support rods 10 are respectively movably connected with the two upper connecting rods 7 by sleeves 11, and the sleeves 11 are sleeved on the connecting rods 7, and the support rods 10 are fixedly connected with the sleeves 11. When the two U-shaped side frames 2 of the front and rear walking parts are close to each other, the angle between the two support rods 10 gradually decreases, so that the support wheels 8 are pressed down on the cables, thereby improving the safety and stability during the walking process.

[0032] The line loss detection component includes a partial discharge detection component, an insulation skin abnormality detection component, a GPS locator and a controller. The partial discharge detection component, the insulation skin abnormality detection component and the GPS locator are all connected to the controller signal; the partial discharge detection component includes a vertical rod 12, a mounting seat 13 and a clamp leakage detector 14, the vertical rod 12 is connected between two connecting rods 7 on one side, a mounting seat 13 is set on one side of the vertical rod 12, one end of the clamp leakage detector 14 is fixed in the mounting seat 13, and the clamp leakage detector 14 is connected to the controller through a signal line; the insulation skin abnormality detection component includes two semicircular rods 15, and the outer sides of the two semicircular rods 15 are respectively connected to the two connecting rods on the same side through two bending rods 16 The rod 7 is connected, and three detection parts are arranged on the inner side, including a pressure wheel 17, an axle rod 18, a spring 19 and a pressure sensor 20. Three mounting holes are opened on the semicircular rod 15, and limiting rings 21 are arranged on the edges of both sides of the mounting holes. One end of the axle rod 18 passes through the mounting hole, and the other end is connected to the pressure wheel 17. A limiting plate 22 is arranged on the part of the axle rod 18 located in the mounting hole. The diameter of the limiting plate 22 is larger than the inner diameter of the limiting ring 21, and a spring 19 is sleeved. One end of the spring 19 is fixedly connected to the limiting plate 22, and the other end is limited by the limiting ring 21 on the other side. A connecting cap 23 is arranged on the outer side of the mounting hole, and a pressure sensor 20 is arranged in the connecting cap 23. The pressure sensor 20 is connected with the controller signal.

[0033] The cleaning component includes a shell 24, a semicircular cleaning plate 25, a half gear 26 and a cleaning motor. The shell 24 is connected to the upper side of the U-shaped chassis 1 of the front walking component through two L-shaped connecting pieces 27. A semicircular cleaning plate 25 and two half gears 26 are arranged inside the shell 24. Gear teeth 28 are arranged on the upper surface of the semicircular cleaning plate 25, and bristles 29 are arranged on the lower surface. The two half gears 26 are asynchronously meshed with the two sides of the semicircular cleaning plate 25 respectively. The half gear 26 is driven by the cleaning motor. Arc grooves 30 are provided on the front and rear sides of the semicircular cleaning plate 25. Cylindrical limit blocks are arranged on both sides of the shell 24, and the cylindrical limit blocks are slidably connected with the arc grooves 30.

[0034] The working process of the power line loss analysis device of the embodiment of the present invention is as follows: first, the front and rear traveling parts are installed from below the cable, so that the cable is located between the traveling wheels of the two U-shaped side frames of the front and rear traveling parts, and is located inside the detection ring (openable and closable) of the clamp-type leakage detector, and is located between the two semicircular rods; then, the lower ends of the two support rods are connected to the hinged seats on the upper sides of the support wheels through pins, and the front and rear support wheels are placed on the cable to form a preliminary support, and then the handle wheel is adjusted to make the two U-shaped side frames of the front and rear traveling parts close to each other, so that the cable is clamped between the two traveling wheels. At this time, the support wheel and the top surface of the cable are also in a compressed state to form a stable and stable The walking method is reliable, and the multiple pressure wheels on the inner side of the two semicircular rods are in close contact with the cable; then, the walking motor is started to drive the power line loss analysis device to walk along the cable. During the walking process, the cleaning component on the front side of the front walking component works, and the cleaning motor drives the two half gears to rotate, driving the semicircular cleaning plate to make reciprocating rotation around the center of the circle to clean up foreign matter on the surface of the cable. The clamp-type leakage detector in the line loss detection component detects partial discharge of the cable in real time, and multiple pressure sensors detect abnormalities of the cable insulation (such as damage, bulging, etc.). When partial discharge and abnormal insulation are detected, the controller records the information of the GPS locator at this time and transmits it to the maintenance center.

[0035] like Figure 8 As shown, in other embodiments, screw holes are provided on both handle wheels 5, and locking bolts 31 are threadedly connected in the screw holes. After the handle wheels are adjusted so that the traveling wheels of the U-shaped side frames on both sides clamp the cables, in order to prevent loosening, the locking bolts 31 can be screwed until they abut against the U-shaped base frame 1, thereby locking the cables and ensuring the safety of the power line loss analysis device during travel.

[0036] like Figure 8 As shown, in other embodiments, the L-shaped connecting member includes a cross bar 32, a sleeve 33 and a vertical rod 34. One end of the cross bar 32 is fixedly connected to the front side of the U-shaped base frame 1, and a sleeve 33 is vertically arranged at the other end. A threaded hole is opened on the side of the sleeve 33, and a locking bolt 35 is arranged in the threaded hole. The lower end of the vertical rod 34 passes through the sleeve 33 and is fixed by the locking bolt 35. The upper end of the vertical rod 34 is fixedly connected to the side of the shell 24. The power line loss analysis device is installed on the cable. After the front and rear walking parts are clamped with the cable, the vertical rods on both sides of the shell are passed through the sleeves on both sides so that the bristles on the lower side of the semicircular cleaning plate are in contact with the cable, and then the position of the vertical rod is fixed by the locking bolt to achieve effective cleaning.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art can still modify or make equivalent substitutions to the specific implementations of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are within the scope of protection of the claims of the present invention to be approved.

Claims

1. A power line loss analysis device, characterized in that: The utility model comprises front and rear traveling parts with the same structure, and a connecting part connected between the front and rear traveling parts. A cleaning part is arranged on the front side of the front traveling part, and a line loss detection part is arranged on the connecting part. The front traveling part comprises a U-shaped base frame, a U-shaped side frame, traveling wheels and a traveling motor. A slide groove is arranged on the inner side of the U-shaped base frame, a screw rod is arranged in the slide groove, and the threads on both sides of the screw rod are opposite. Both ends of the screw rod are rotatably connected to the two sides of the U-shaped base frame respectively, and handle wheels are arranged at the ends. A slider is threadedly connected to both sides of the screw rod, and a U-shaped side frame is arranged above the two sliders. Travel wheels are rotatably arranged in the two U-shaped side frames, and the travel wheels are driven by a travel motor arranged on the top of the U-shaped side frame.

2. The power line loss analysis device according to claim 1, characterized in that: The connecting component comprises four connecting rods, and the four connecting rods are all connected between the U-shaped side frames of the front and rear walking components.

3. The power line loss analysis device according to claim 2, characterized in that: The line loss detection components include a partial discharge detection component, an insulation skin abnormality detection component, a GPS locator and a controller. The partial discharge detection component, the insulation skin abnormality detection component and the GPS locator are all connected to the controller signal.

4. The power line loss analysis device according to claim 3, characterized in that: The partial discharge detection assembly includes a vertical rod, a mounting seat and a clamp-type leakage detector. The vertical rod is connected between two connecting rods on one side. The mounting seat is arranged on one side of the vertical rod. One end of the clamp-type leakage detector is fixed in the mounting seat.

5. The power line loss analysis device according to claim 3, characterized in that: The insulation skin abnormality detection component includes two semicircular rods, the outer sides of the two semicircular rods are respectively connected to the two connecting rods on the same side through two bending rods, and multiple detection parts are arranged on the inner sides, and the detection parts include a pressure wheel, an axle rod, a spring and a pressure sensor. Multiple mounting holes are opened on the semicircular rod, and limit rings are arranged on the edges of both sides of the mounting holes. One end of the axle rod passes through the mounting hole, and the other end is connected to the pressure wheel. A limit plate is arranged on the part of the axle rod located in the mounting hole, and a spring is sleeved. One end of the spring is fixedly connected to the limit plate, a connecting cap is arranged on the outer side of the mounting hole, and a pressure sensor is arranged in the connecting cap. The pressure sensor is connected to the controller signal.

6. The power line loss analysis device according to claim 1, characterized in that: The cleaning component includes a shell, a semicircular cleaning plate, a half gear and a cleaning motor. The shell is connected to the upper side of the U-shaped base frame of the front walking component through two L-shaped connecting parts. A semicircular cleaning plate and two half gears are arranged inside the shell. Gear teeth are arranged on the upper surface of the semicircular cleaning plate, and bristles are arranged on the lower surface. The two half gears are asynchronously meshed with the two sides of the semicircular cleaning plate respectively. The half gears are driven by the cleaning motor. Arc grooves are arranged on the front and rear sides of the semicircular cleaning plate. Cylindrical limit blocks are arranged on both sides of the shell, and the cylindrical limit blocks are slidably connected with the arc grooves.

7. The power line loss analysis device according to claim 2, characterized in that: The connecting component also includes two supporting wheels, and two supporting rods are hinged on the upper part of each supporting wheel, and the two supporting rods are movably connected to the two connecting rods on the upper side respectively.

8. The power line loss analysis device according to claim 1, characterized in that: Both handlebars are provided with screw holes, and locking bolts are threadedly connected in the screw holes.

9. The power line loss analysis device according to claim 6, characterized in that: The L-shaped connecting piece includes a cross bar, a sleeve and a vertical pole. One end of the cross bar is fixedly connected to the front side of the U-shaped base frame, and a sleeve is vertically arranged at the other end. A threaded hole is opened on the side of the sleeve, and a locking bolt is arranged in the threaded hole. The lower end of the vertical pole passes through the sleeve and is fixed by the locking bolt.

10. The power line loss analysis device according to claim 7, characterized in that: A hinge seat is arranged on the top of the support wheel, and round holes are arranged on the bottoms of the two support rods, which are detachably connected to the hinge seat through pins or bolts. A sleeve is arranged on the top of the two support rods, and the sleeve is sleeved on the connecting rod.

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