Transmission line conductor temperature on-line monitoring device

Abstract

The present application discloses a power transmission line conductor temperature on-line monitoring device, relates to the technical field of power transmission line on-line monitoring, and comprises an upper shell, a lower shell, a conductor, a first brush frame and a second brush frame, the conductor is located between the upper shell and the lower shell, the first brush frame and the second brush frame are arranged on one side of the upper shell and the lower shell, a group of driving wheels and two groups of driven wheels are arranged in the upper shell, temperature sensors are embedded in the wheel faces of the two groups of driven wheels, the upper shell and the lower shell are both hollow rectangular blocks, the shapes of the first brush frame and the second brush frame are matched with the shape of the conductor, when the conductor is dirty, the first brush frame and the second brush frame abut the outer circle of the conductor respectively, the side of the upper shell close to the lower shell is inwardly recessed in the center to form a passage one matched with the outer circle of the conductor, the axis of the passage one is parallel to the axis of the conductor, and a first groove is formed in the side of the upper shell close to the lower shell, the present application has the characteristics of automatically adapting to weather changes during detection.

Description

Technical Field

[0001] This invention relates to the field of online monitoring technology for power transmission lines, specifically to an online monitoring device for the temperature of power transmission line conductors. Background Technology

[0002] Transmission lines are a critical component of the power system, and their operational status directly affects the safe and stable operation of the power grid. During long-term operation, conductors may exhibit various abnormal conditions due to factors such as current thermal effects, environmental erosion, and mechanical vibration. Furthermore, ultra-high voltage (UHV) transmission lines have large spans and traverse complex terrains, making manual tower climbing inspections extremely difficult and risky. Therefore, monitoring the temperature along the transmission lines is an important means of timely detecting potential line hazards and ensuring the safe operation of the power grid.

[0003] Existing patent CN209589133U discloses a power transmission line conductor temperature monitoring device. This device mainly comprises an upper housing and a lower housing, with a channel between them for the conductor to pass through. The device is suspended from the conductor by a drive wheel and can move along the conductor's axis. The housing contains components such as a temperature sensor and a drive motor, collecting conductor temperature data through contact or non-contact methods. However, the temperature sensor in this patent does not consider the interference of weather factors on the accuracy of temperature measurement. The device cannot distinguish between heat conducted by weather and heat caused by defects, easily leading to false alarms or missed alarms.

[0004] Therefore, it is necessary to design an online monitoring device for the temperature of transmission line conductors that can adapt to weather changes. Summary of the Invention

[0005] The purpose of this invention is to provide an online monitoring device for the temperature of transmission line conductors to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an online monitoring device for the temperature of transmission line conductors, comprising an upper housing, a lower housing, a conductor, a first brush frame, and a second brush frame. The conductor is located between the upper housing and the lower housing. The first brush frame and the second brush frame are both disposed on one side of the upper housing and the lower housing. The upper housing is provided with a set of driving wheels and two sets of driven wheels. Temperature sensors are embedded in the inner wall of the wheel surfaces of the two sets of driven wheels. The upper housing and the lower housing are both rectangular blocks with hollow interiors. The shapes of the first brush frame and the second brush frame are adapted to the shape of the conductor. When there is dirt on the conductor, the first brush frame and the second brush frame respectively abut against the outer circle of the conductor.

[0007] According to the above technical solution, the upper housing has an inwardly recessed central section on the side near the lower housing to form a passage 1 that matches the outer circle of the conductor. The axis of the passage 1 is parallel to the axis of the conductor. A first groove is provided on the side of the upper housing near the lower housing. The first groove is rectangular and communicates with the interior of the upper housing and the passage 1. The width of the drive wheel and the driven wheel matches the width of the first groove and are located inside the first groove. Two sets of driven wheels are located on both sides of the drive wheel and the three are arranged along the axis of the conductor. An energy harvesting unit is provided at the end of the upper housing and the lower housing away from the first brush frame.

[0008] According to the above technical solution, the driven wheel is made of thermally conductive and insulating material. The driven wheel has an internal bearing connected to a first bracket. Both ends of the first bracket are slidably connected to support rods. The two ends of the support rods are fixedly connected to the upper and lower walls of the upper housing, respectively. A helical spring is sleeved on the outside of the support rods. The two ends of the helical springs abut against the first bracket and the upper wall of the upper housing, respectively. When the helical springs are in a naturally extended state, one side of the first bracket abuts against the lower wall of the upper housing.

[0009] According to the above technical solution, a connecting plate and a second bracket are fixedly connected between the two ends of the first brackets. The connecting plate is rectangular and a rotating shaft is connected to the central bearing on one side of the connecting plate. The rotating shaft passes through the drive wheel and is fixedly connected to the drive wheel. A motor is fixedly connected inside the second bracket. The output shaft of the motor is fixedly connected to the rotating shaft. By driving the motor, the drive wheel rotates around the output shaft axis of the motor, thereby realizing the forward and backward movement of the upper housing along the conductor axis.

[0010] According to the above technical solution, an array of rollers is embedded around the axis of the passage at the lower end of one end of the upper housing. An array of air holes is opened between two adjacent sets of rollers. A fan is fixedly connected inside the upper housing. The air outlet of the fan corresponds to the air hole. An air inlet is opened at one end of the upper housing. The position of the air inlet corresponds to the position of the fan. A louver is fixedly connected to the side of the air inlet away from the fan. A semi-circular clamping frame is fixedly connected to the side of the upper housing away from the first brush frame. An array of rollers with the same structure as rollers are embedded around the circumference inside the clamping frame.

[0011] According to the above technical solution, the two ends of the lower housing are respectively fixedly connected to a semi-circular clamping frame two and a clamping frame three. Each clamping frame two and clamping frame three has a set of rollers three and rollers four with the same structure as roller two. A rectangular drain groove one is opened at the bottom of clamping frame two. The drain groove one is located between two adjacent sets of rollers three. A passage two adapted to the outer circle of the wire is opened at the center of the upper part of the lower housing. The positions of passage one and passage two are corresponding. Rectangular moving grooves are opened on both sides of the lower housing along the axis. The moving grooves are connected to the interior of the lower housing. A rectangular through groove one is opened at the bottom of passage two.

[0012] According to the above technical solution, multiple sets of bristles are fixedly connected around the circumference inside the first brush frame. A baffle is fixedly connected to one end of the first brush frame. The width of the baffle is smaller than the width of the first brush frame. A third bracket is fixedly connected to the other end of the first brush frame away from the baffle. A fourth bracket is provided on the side of the third bracket near the lower housing. A housing is fixedly connected to the end of the fourth bracket near the third bracket. A motor is fixedly connected inside the housing. One end of the third bracket passes through the housing and is fixedly connected to the output shaft of the motor. By driving the motor, the first brush frame rotates around the output shaft axis of the motor.

[0013] According to the above technical solution, multiple sets of bristles are fixedly connected around the circumference inside the second brush frame. Multiple sets of drain grooves are opened inside the second brush frame. The drain grooves are located between two adjacent sets of bristles. A baffle is fixedly connected below the second brush frame. The baffle is arc-shaped. A fifth bracket with the same structure as the third bracket is fixedly connected to one end of the second brush frame. A sixth bracket with the same structure as the fourth bracket and the first housing is provided on the side of the fifth bracket near the lower housing. A third motor is fixedly connected inside the second housing, and the output shaft of the third motor is fixedly connected to the fifth bracket.

[0014] According to the above technical solution, two sets of bearing seats are fixedly connected to one side of the lower housing. The two sets of bearing seats are located at both ends of the length direction of the moving groove. A lead screw is connected between the two sets of bearing seats. A motor four is fixedly connected to one side of one set of bearing seats. The output shaft of the motor four is fixedly connected to the lead screw. The lead screw is threadedly connected to the fourth bracket. A shielding body is fixedly connected to the outside of the moving groove. The fourth bracket passes through the moving groove and is slidably connected to one end of the shielding body. The same structure and motor five are provided on the side of the lower housing away from the bearing seats. By driving the motor four and the motor five, the first brush frame and the second brush frame move along the length direction of the moving groove, thereby driving the brush bristles one and two to clean the wire.

[0015] According to the above technical solution, a visual sensor and a weather instrument are fixedly connected to the side of the upper housing near the first brush frame and the top of the upper housing, respectively. The upper housing and the lower housing are hinged and connected by bolts.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention significantly improves the accuracy of temperature anomaly judgment by setting up a meteorological instrument to monitor weather changes in real time and combining it with two sets of brush frames to eliminate weather interference factors; by setting up two sets of brush frames, it can clean the stains on the conductor and can also cooperate with the temperature sensor for sunny and rainy conditions, thereby eliminating the interference of weather on conductor temperature monitoring; by setting up drive wheels and driven wheels, the entire device can move on the conductor to realize temperature monitoring of different sections of the conductor. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the lower structure of the upper shell of the present invention; Figure 3 This is a schematic diagram of the internal structure of the upper shell of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the upper shell of the present invention; Figure 6 This is a schematic diagram of the lower shell structure of the present invention; Figure 7 This is a schematic diagram of the first brush frame structure of the present invention; Figure 8 This is a schematic diagram of the second brush frame structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged diagram at point B Figure 10 This is a schematic diagram of the internal structure of the lower housing of the present invention; Figure 11 This is a schematic diagram of the shielding mode of the present invention; Figure 12 This is a schematic diagram of the stain removal mode of the present invention; In the diagram: 1. Upper housing; 2. Lower housing; 3. Wire; 4. First brush frame; 5. Second brush frame; 6. Drive wheel; 7. Driven wheel; 8. First groove; 9. First bracket; 10. Support rod; 11. Helical spring; 12. Connecting plate one; 13. Second bracket; 14. Motor one; 15. Passage one; 16. Roller one; 17. Air hole; 18. Fan; 19. Air inlet; 20. Clamping frame one; 21. Clamping frame two; 22. Roller three; 23. Drainage trough 1; 24. Passageway 2; 25. Moving trough; 26. Passageway 1; 27. Brush 1; 28. Baffle 1; 29. ​​Third support; 30. Fourth support; 31. Box 1; 32. Motor 2; 33. Brush 2; 34. Drainage trough 2; 35. Baffle 2; 36. Fifth support; 37. Bearing seat; 38. Lead screw; 39. Motor 4; 40. Shielding body; 41. Rotating shaft; 42. Vision sensor; 43. Weather instrument. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-12 The present invention provides a technical solution: an online monitoring device for the temperature of transmission line conductors, comprising an upper housing 1, a lower housing 2, a conductor 3, a first brush frame 4, and a second brush frame 5. The conductor 3 is located between the upper housing 1 and the lower housing 2. The first brush frame 4 and the second brush frame 5 are both disposed on one side of the upper housing 1 and the lower housing 2. The upper housing 1 is provided with a set of driving wheels 6 and two sets of driven wheels 7. Temperature sensors (not shown in the figure) are embedded in the inner wall of the wheel surface of the two sets of driven wheels 7. The upper housing 1 and the lower housing 2 are both rectangular blocks with hollow interiors. The shapes of the first brush frame 4 and the second brush frame 5 are adapted to the shape of the conductor 3. When there is dirt on the conductor 3, the first brush frame 4 and the second brush frame 5 respectively abut against the outer circle of the conductor 3.

[0020] The upper housing 1 has an inwardly recessed central section near the lower housing 2, forming a passage 15 that matches the outer circle of the conductor 3. The axis of the passage 15 is parallel to the axis of the conductor 3. A first groove 8 is provided on the side of the upper housing 1 near the lower housing 2. The first groove 8 is rectangular and communicates with the interior of the upper housing 1 and the passage 15. The widths of the drive wheel 6 and the driven wheel 7 match the width of the first groove 8 and are located inside the first groove 8. Two sets of driven wheels 7 are located on both sides of the drive wheel 6, and the three are arranged along the axis of the conductor 3. An energy harvesting unit (not shown in the figure) is provided at the end of the upper housing 1 and the lower housing 2 away from the first brush frame 4. The energy harvesting unit includes an energy harvesting current transformer, a clamp sleeve, and other structures. The energy harvesting unit is used to harvest energy from the conductor 3 and then power the drive source. This is existing technology and will not be described in detail.

[0021] The driven wheel 7 is made of thermally conductive and insulating material. The internal bearing of the driven wheel 7 is connected to the first bracket 9. Both ends of the first bracket 9 are slidably connected to the support rod 10. The two ends of the support rod 10 are fixedly connected to the upper wall and the lower wall inside the upper housing 1, respectively. A helical spring 11 is sleeved on the outside of the support rod 10. The two ends of the helical spring 11 abut against the first bracket 9 and the upper wall inside the upper housing 1, respectively. When the helical spring 11 is in a naturally extended state, one side of the first bracket 9 abuts against the lower wall inside the upper housing 1.

[0022] A connecting plate 12 and a second bracket 13 are fixedly connected to the two ends of the two sets of first brackets 9 respectively. The connecting plate 12 is rectangular. A rotating shaft 41 is connected to the central bearing on one side of the connecting plate 12. The rotating shaft 41 passes through the drive wheel 6 and is fixedly connected to the drive wheel 6. A motor 14 is fixedly connected inside the second bracket 13. The output shaft of the motor 14 is fixedly connected to the rotating shaft 41. By driving the motor 14, the drive wheel 6 rotates around the output shaft axis of the motor 14, realizing the forward and backward movement of the upper housing 1 along the axis of the wire 3.

[0023] An array of rollers 16 is embedded around the axis of passage 15 at one end of the lower part of the upper housing 1. The rollers 16 can rotate around their own axis. This is existing technology and will not be described in detail. An array of air holes 17 is opened between two adjacent sets of rollers 16. A fan 18 is fixedly connected inside the upper housing 1. The fan 18 is a YOUNUON7515 model. This is existing technology and will not be described in detail. The air outlet of the fan 18 corresponds to the air hole 17. An air inlet 19 is opened at one end of the upper housing 1. The position of the air inlet 19 corresponds to the position of the fan 18. A louver is fixedly connected to the side of the air inlet 19 away from the fan 18. A semi-circular clamping frame 20 is fixedly connected to the side of the upper housing 1 away from the first brush frame 4. An array of rollers 2 with the same structure as rollers 16 is embedded around the circumference inside the clamping frame 20.

[0024] The lower housing 2 has a semi-circular clamping frame 21 and a clamping frame 3 fixedly connected to its two ends. The clamping frame 21 and the clamping frame 3 each have a set of rollers 22 and 4 with the same structure as rollers 2. Rollers 22 and 4 can rotate around their own axis. This is existing technology and will not be described in detail. The bottom of the clamping frame 21 has a rectangular drain groove 23. The drain groove 23 is located between two adjacent sets of rollers 22. The upper center of the lower housing 2 has a passage 24 that matches the outer circle of the wire 3. The passage 15 corresponds to the position of the passage 24. The lower housing 2 has rectangular moving grooves 25 on both sides symmetrically along the axis. The moving grooves 25 are connected to the interior of the lower housing 2. The bottom of the passage 24 has a rectangular through groove 26.

[0025] Multiple sets of bristles 27 are fixedly connected around the circumference inside the first brush frame 4. A baffle 28 is fixedly connected to one end of the first brush frame 4. The width of the baffle 28 is smaller than the width of the first brush frame 4. A third bracket 29 is fixedly connected to the other end of the first brush frame 4 away from the baffle 28. A fourth bracket 30 is provided on the side of the third bracket 29 near the lower housing 2. A housing 31 is fixedly connected to the end of the fourth bracket 30 near the third bracket 29. A motor 32 is fixedly connected inside the housing 31. One end of the third bracket 29 passes through the housing 31 and is fixedly connected to the output shaft of the motor 32. By driving the motor 32, the first brush frame 4 rotates around the output shaft axis of the motor 32.

[0026] The second brush frame 5 has multiple sets of bristles 33 fixedly connected around its circumference. The second brush frame 5 has multiple sets of drain grooves 34 located between two adjacent sets of bristles 33. The second brush frame 5 has a baffle 35 fixedly connected below it. The baffle 35 is arc-shaped. One end of the second brush frame 5 is fixedly connected to a fifth bracket 36 with the same structure as the third bracket 29. The fifth bracket 36 has a sixth bracket and a housing 2 with the same structure as the fourth bracket 30 and housing 31 on the side near the lower housing 2. The housing 2 has a motor 3 fixedly connected inside it, and the output shaft of the motor 3 is fixedly connected to the fifth bracket 36.

[0027] Two sets of bearing seats 37 are fixedly connected to one side of the lower housing 2. The two sets of bearing seats 37 are located at both ends of the length direction of the moving groove 25. A lead screw 38 is connected between the two sets of bearing seats 37. A motor 4 39 is fixedly connected to one side of one set of bearing seats 37. The output shaft of the motor 4 39 is fixedly connected to the lead screw 38. The lead screw 38 is threadedly connected to the fourth bracket 30. A shielding body 40 is fixedly connected to the outside of the moving groove 25. The fourth bracket 30 passes through the moving groove 25 and is slidably connected to one end of the shielding body 40. The same structure and motor 5 are provided on the side of the lower housing 2 away from the bearing seats 37. By driving the motor 4 39 and the motor 5, the first brush frame 4 and the second brush frame 5 move along the length direction of the moving groove 25, thereby driving the brush bristles 1 27 and brush bristles 2 33 to clean the wire 3.

[0028] A visual sensor 42 and a weather instrument 43 are fixedly connected to the side and top of the upper housing 1 near the first brush frame 4, respectively. The weather instrument 43 consists of an ambient temperature sensor, a humidity sensor, a solar radiation intensity sensor, a wind speed sensor, etc., which are existing technologies and will not be described in detail. The upper housing 1 and the lower housing 2 are hinged and connected by bolts.

[0029] Example 1: This device is installed on an unobstructed section of a power transmission line, located between two adjacent sets of fittings. This example describes how the detection device operates under sunny or cloudy, rainless weather conditions.

[0030] The device drives the rotating shaft 41 to rotate via motor 14, which in turn drives the drive wheel 6 to rotate, causing the upper housing 1 to move forward along the axis of the conductor 3 with the lower housing 2. The two sets of driven wheels 7 are always in elastic contact with the outer surface of the conductor 3 under the elastic preload of the helical spring 11. During the movement of the device, the two sets of temperature sensors continuously collect the temperature value of the surface of the conductor 3 they are in contact with. Since the two sets of driven wheels 7 are located on both sides of the drive wheel 6 and there is a certain distance between them, the temperature values ​​at two different positions on the conductor 3 can be obtained. Let the normal temperature threshold of the conductor 3 be T. When either temperature sensor detects that the surface temperature of the conductor 3 exceeds T, the controller identifies the environmental parameters collected by the weather instrument 43. When the weather instrument 43 displays that there is no rainfall and the sunshine intensity is high.

[0031] Motor 14 stops operating, and the device remains stationary at the abnormal hot spot location. Motor 4 39 is started, driving the lead screw 38 to rotate, which in turn moves the fourth bracket 30 along the moving groove 25 towards the wire 3. This drives motor 2 32 to rotate, causing the first brush frame 4 to rotate around the output shaft axis of motor 2 32 until the first brush frame 4 is directly above the wire 3 with a gap between it and the wire 3, without contacting the surface of the wire 3. Simultaneously, motor 5 drives the sixth bracket, and motor 3 is started, causing the fifth bracket 36 to rotate around the output shaft axis of motor 3 until the baffle 2 35 of the second brush frame 5 is above the wire 3, forming a continuous sunshade with the first brush frame 4 (e.g., ...). Figure 10 As shown), the shielding lasts for several minutes (the time is based on work experience). After shielding, drive motor 14 moves the shielded position into the device. The temperature sensors on the two sets of driven wheels 7 continue to detect the surface temperature change of the wire 3 and record the temperature difference before and after shielding.

[0032] Specifically, if the surface temperature of conductor 3 drops below the temperature threshold T after a preset time following the shading, it indicates that the abnormal temperature rise is mainly caused by solar radiation, and the device continues to resume inspection. If the surface temperature of conductor 3 drops slightly after shading but is still significantly higher than the temperature threshold, or the temperature remains basically unchanged, it indicates that the heat source of the abnormal temperature rise comes from inside conductor 3 and is unrelated to solar radiation. Furthermore, motor 14 is activated, exposing the temperature anomaly point to the recognition range of visual sensor 42. If the image recognition result shows bird droppings, dust accumulation, or dirt crust on the surface of the conductor 3, and the location of the stain coincides with the temperature anomaly point, motors 2 and 3 are immediately activated, driving the first brush frame 4 and the second brush frame 5 to rotate around the output shaft axis of motors 2 and 3, respectively, so that bristles 1 and 23 elastically abut against the outer surface of the conductor 3. Motors 4 and 5 are then activated, driving the fourth bracket 30 and the sixth bracket to move back and forth along the axis of the conductor 3 for brushing. The first brush frame 4 and the second brush frame 5 brush synchronously, thereby removing the dirt. Then, motors 2 and 3 are driven to rotate around the output shaft, causing the first brush frame 4 and the second brush frame 5 to move away from the conductor 3 and allow the dirt to fall off (e.g. Figure 11 As shown), after cleaning, motors 2 (32) and 3 (3) drive the first brush frame 4 and the second brush frame 5 back to the shielding mode. The temperature sensors in the two sets of driven wheels 7 collect the surface temperature of the wire 3 again. If the detected temperature has dropped below the threshold T, it is determined that the stain is causing the heat and has been cleaned. If the detected temperature has not dropped significantly, it is determined that the heat is caused by internal factors of the wire 3. The visual sensor 42 identifies the characteristics of the end fitting, uses the fitting as a reference point, marks the position, and sends an alarm to the staff.

[0033] If the stain is too hardened due to sun exposure and cannot be cleaned by brush bristles 1-27 and 2-33, mark the area where the stain is too hard.

[0034] Example 2: This example is based on Example 1 and describes how the device operates during rainy weather.

[0035] When the device travels along the conductor 3 in rainy weather, the two sets of driven wheels 7 maintain contact with the surface of the conductor 3 under the elastic preload of the helical spring 11. The internal temperature sensor continuously collects temperature data, and the weather instrument 43 detects the rainfall signal. Due to the water film and water droplets adhering to the surface of the conductor 3, the temperature sensor reading may be lower due to the heat absorption caused by water evaporation. When the temperature sensor detects an abnormal temperature on the surface of a certain section of the conductor 3, in a humid environment, if the temperature at a certain point is higher than the temperature of the adjacent conductor section, even if it does not exceed the conventional threshold T, the visual sensor 42 still marks the location as a suspected hot spot.

[0036] Specifically, motor 14 stops operating, causing the hot spot of the device to remain below the air vent 17. At the same time, motors 32 and 3 are started, putting the first brush frame 4 and the second brush frame 5 into shielding mode. Fan 18 is started, and the airflow generated by fan 18 forms multiple linear air curtains perpendicular to the axis of the conductor 3 through the array of air vents 17 at the end of the upper housing 1. The air vents 17 are arranged circumferentially around the axis of passage 15. The airflow blows from above the conductor 3 to the surface of the conductor 3, peeling off the water film and water droplets attached to the conductor 3 along the radial direction of the conductor 3 and blowing them off. The peeled water droplets fall downward under the influence of gravity and airflow and are discharged through the drain groove 23 at the bottom of the lower housing 2. Fan 18 continues to run for a period of time, and then motor 14 is started again to detect the temperature at the hot spot. If the temperature returns to the preset temperature threshold T after drying, the abnormality is determined to be a false low temperature or numerical fluctuation caused by the evaporation and cooling of the rainwater film. If the measured temperature is still significantly higher than the preset temperature threshold T after drying, it indicates that the hot spot is caused by the heating of the conductor 3 itself or surface stains.

[0037] The vision sensor 42 acquires images of abnormal hot spots on the surface of the wire 3. If the image recognition confirms that the location of the stain coincides with the temperature anomaly point, the cleaning program is started. Motors 2 and 3 are activated, driving the first brush frame 4 and the second brush frame 5 to rotate along the output shaft axis, so that the bristles 1 27 of the first brush frame 4 and the bristles 2 33 of the second brush frame 5 abut against the outer circle of the wire 3. Motors 4 and 5 are then driven, causing the first brush frame 4 and the second brush frame 5 to brush back and forth along the axis of the wire 3, thereby removing the wet dirt from the surface of the wire 3. After cleaning, the first brush frame 4 and the second brush frame 5 return to the shielding mode, and the blower 18 starts again for a short time to blow away water droplets and water film on the surface of the wire 3. Then the temperature sensor collects the temperature again. If the temperature drops back to normal, it is determined that the stain caused the heat and has been cleaned, and the inspection continues. If the temperature is still abnormal, it is determined that there is a defect inside the wire 3 causing the heat to be generated, and the abnormal temperature at this point is marked.

[0038] When operating in rainy weather, recall the previously marked location of hardened stains caused by sunlight, and gradually move the device to the stain location for cleaning.

[0039] When the weather instrument 43 detects that the environment is in rainy and windy conditions, it judges it as severe weather and starts motors 32 and 3. The first brush frame 4 and brush bristles 27 are brought into slight contact with the outer surface of the wire 3. The semi-circular inner cavity of the first brush frame 4 wraps around the upper semi-circular surface of the wire 3 from above. The second brush frame 5 is rotated to the lower semi-circular surface of the wire 3, thus forming a ring-shaped covering structure together with the first brush frame 4. This reduces the eddies generated between the device and the wire 3, suppresses device flutter caused by eddies, and maintains the stability of the posture. At the same time, under this severe weather, the device's walking speed is reduced and the cleaning mode is paused. The stains are marked. After the windy weather improves, the device returns to the marked position and the cleaning is re-inspected.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An online monitoring device for conductor temperature of a power transmission line, comprising an upper housing (1), a lower housing (2), a conductor (3), a first brush frame (4), and a second brush frame (5), characterized in that, The wire (3) is located between the upper shell (1) and the lower shell (2). The first brush frame (4) and the second brush frame (5) are both located on one side of the upper shell (1) and the lower shell (2). The upper shell (1) is provided with a set of drive wheels (6) and two sets of driven wheels (7). Temperature sensors are embedded in the inner wall of the wheel surface of the two sets of driven wheels (7). The upper shell (1) and the lower shell (2) are both rectangular blocks and hollow inside. The shape of the first brush frame (4) and the second brush frame (5) is adapted to the shape of the wire (3). When there is dirt on the wire (3), the first brush frame (4) and the second brush frame (5) respectively abut against the outer circle of the wire (3).

2. The online monitoring device for conductor temperature of transmission lines according to claim 1, characterized in that, The upper housing (1) is recessed inward on the side near the lower housing (2) to form a passage (15) that matches the outer circle of the wire (3). The axis of the passage (15) is parallel to the axis of the wire (3). The upper housing (1) is provided with a first groove (8) on the side near the lower housing (2). The first groove (8) is rectangular and communicates with the interior of the upper housing (1) and the passage (15). The width of the drive wheel (6) and the driven wheel (7) matches the width of the first groove (8) and is located inside the first groove (8). The two sets of driven wheels (7) are located on both sides of the drive wheel (6) and the three are arranged along the axis of the wire (3). An energy harvesting unit is provided at the end of the upper housing (1) and the lower housing (2) away from the first brush frame (4).

3. The online monitoring device for conductor temperature of transmission lines according to claim 2, characterized in that, The driven wheel (7) is connected to a first bracket (9) via an internal bearing. Both ends of the first bracket (9) are slidably connected to a support rod (10). The two ends of the support rod (10) are fixedly connected to the upper wall and lower wall inside the upper housing (1), respectively. A helical spring (11) is sleeved on the outside of the support rod (10). The two ends of the helical spring (11) abut against the first bracket (9) and the upper wall inside the upper housing (1), respectively. When the helical spring (11) is in a naturally extended state, one side of the first bracket (9) abuts against the lower wall inside the upper housing (1).

4. The online monitoring device for conductor temperature of transmission lines according to claim 3, characterized in that, A connecting plate (12) and a second bracket (13) are fixedly connected between the two ends of the first bracket (9). The connecting plate (12) is rectangular. A rotating shaft (41) is connected to the central bearing on one side of the connecting plate (12). The rotating shaft (41) passes through the drive wheel (6) and is fixedly connected to the drive wheel (6). A motor (14) is fixedly connected inside the second bracket (13). The output shaft of the motor (14) is fixedly connected to the rotating shaft (41).

5. The online monitoring device for conductor temperature of transmission lines according to claim 4, characterized in that, An array of rollers (16) is embedded around the axis of passage (15) at one end of the upper housing (1). An array of air holes (17) is provided between two adjacent sets of rollers (16). A fan (18) is fixedly connected inside the upper housing (1). The air outlet of the fan (18) corresponds to the air hole (17). An air inlet (19) is provided at one end of the upper housing (1). The position of the air inlet (19) corresponds to the position of the fan (18). A louver is fixedly connected to the side of the air inlet (19) away from the fan (18). A semi-circular clamping frame (20) is fixedly connected to the side of the upper housing (1) away from the first brush frame (4). An array of rollers (2) with the same structure as rollers (16) is embedded around the circumference inside the clamping frame (20).

6. The online monitoring device for conductor temperature of transmission lines according to claim 5, characterized in that, The lower housing (2) is fixedly connected to two ends of a semi-circular clamping frame two (21) and a clamping frame three. The clamping frame two (21) and the clamping frame three are each embedded with a set of rollers three (22) and rollers four with the same structure as roller two. A rectangular drain groove one (23) is opened at the bottom of the clamping frame two (21). The drain groove one (23) is located between two adjacent sets of rollers three (22). A passage two (24) adapted to the outer circle of the wire (3) is opened at the center of the upper part of the lower housing (2). The passage one (15) is in the same position as the passage two (24). A rectangular moving groove (25) is opened on both sides of the lower housing (2) symmetrical along the axis. The moving groove (25) is connected to the interior of the lower housing (2). A rectangular through groove one (26) is opened at the bottom of the passage two (24).

7. The online monitoring device for conductor temperature of transmission lines according to claim 6, characterized in that, The first brush frame (4) has multiple sets of bristles (27) fixedly connected around its circumference. One end of the first brush frame (4) is fixedly connected to a baffle (28). The width of the baffle (28) is smaller than the width of the first brush frame (4). The other end of the first brush frame (4) away from the baffle (28) is fixedly connected to a third bracket (29). A fourth bracket (30) is provided on the side of the third bracket (29) near the lower housing (2). One end of the fourth bracket (30) near the third bracket (29) is fixedly connected to a housing (31). A motor (32) is fixedly connected inside the housing (31). One end of the third bracket (29) passes through the housing (31) and is fixedly connected to the output shaft of the motor (32).

8. The online monitoring device for conductor temperature of transmission lines according to claim 7, characterized in that, The second brush frame (5) has multiple sets of bristles (33) fixedly connected around its circumference. The second brush frame (5) has multiple sets of drain grooves (34) located between two adjacent sets of bristles (33). The second brush frame (5) has a baffle (35) fixedly connected below it. The baffle (35) is arc-shaped. The second brush frame (5) has a fifth bracket (36) with the same structure as the third bracket (29) fixedly connected to one end. The fifth bracket (36) has a sixth bracket and a box with the same structure as the fourth bracket (30) and the box (31) on the side near the lower shell (2). The box has a motor (3) fixedly connected inside it, and the output shaft of the motor (3) is fixedly connected to the fifth bracket (36).

9. The online monitoring device for conductor temperature of transmission lines according to claim 8, characterized in that, Two sets of bearing seats (37) are fixedly connected to one side of the lower housing (2). The two sets of bearing seats (37) are located at both ends of the length direction of the moving groove (25). A lead screw (38) is connected between the two sets of bearing seats (37). A motor four (39) is fixedly connected to one side of one set of bearing seats (37). The output shaft of the motor four (39) is fixedly connected to the lead screw (38). The lead screw (38) is threadedly connected to the fourth bracket (30) on the outside. A shielding body (40) is fixedly connected to the outside of the moving groove (25). The fourth bracket (30) passes through the moving groove (25) and is slidably connected to one end of the shielding body (40). The same structure and motor five are provided on the side of the lower housing (2) away from the bearing seats (37).

10. The online monitoring device for conductor temperature of transmission lines according to claim 9, characterized in that, A visual sensor (42) and a weather instrument (43) are fixedly connected to the side and top of the upper housing (1) near the first brush frame (4), respectively. The upper housing (1) and the lower housing (2) are hinged and connected by bolts.

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