A multi-node power grid wireless temperature measurement device and temperature measurement method

Abstract

The present invention discloses a multi-node power grid wireless temperature measurement device and a temperature measurement method, which relates to the technical field of power grid wireless temperature measurement. It includes a frame. A driving mechanism for driving the device to move is installed on two frames. On the side of the driving mechanism away from the frame, a side frame is fixedly installed. On one side of the side frame, a monitoring mechanism for initially measuring the temperature of the line is fixedly installed. Clamping mechanisms for isolating the environment and measuring the temperature of the line are installed at both ends of the frame. A processing mechanism for treating the surface of the line is provided on one side of the monitoring mechanism. Through the setting of the monitoring mechanism, the present invention can instantaneously and roughly feedback the cable temperature state, quickly locate the temperature abnormal area, thereby effectively shortening the long-distance cable temperature measurement process and realizing rapid testing. This process not only accelerates the temperature measurement process, but also improves the efficiency and accuracy of cable maintenance through real-time monitoring, further ensuring the safety and stability of cable operation.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless temperature measurement for power grids, and particularly to a multi-node wireless temperature measurement device and method for power grids. Background Art

[0002] A power grid node refers to a connection point in a power grid. It is the basic component unit of the power grid structure. In a power system, a power grid node can be a physical connection point, such as the busbar of a substation, the outlet of a generator, etc., or a logical connection point used to represent the power transmission and distribution relationship between different parts of the power grid. Power grid nodes are important components of the power grid. They connect various parts of the power grid, are responsible for power transmission and distribution, and also have functions such as status monitoring, control, fault isolation, and restoration. To ensure the normal operation of the power grid, it is necessary to regularly measure the temperature of the connecting wires between power grid nodes to ensure the stable operation between power grid nodes.

[0003] In the prior art, a Chinese patent with the publication number CN112834060B was proposed to solve the above-mentioned existing technical problems. The technical solution disclosed in this patent document is as follows: It includes a moving mechanism, a lower cable temperature measurement mechanism, and an upper cable temperature measurement mechanism. A fixed rod is fixedly connected to the bottom of the fixed block. An inner movable rod is movably sleeved at the central position inside the fixed rod. An elastic spring is fixedly connected to the outer side of the bottom of the fixed rod. One end of the outer side of the elastic spring is fixedly connected to a mounting plate. A mounting rod is fixedly connected to the central position of one end of the outer side of the mounting plate. A positioning snap ring is provided at one end of the outer side of the mounting rod. A roller shaft is rotatably connected to the central position inside the fixed shaft. For this cable temperature measurement device, by starting the drive motor, the rotating shaft rotates, driving the connecting rod to rotate, and the connecting rod is rotatably sleeved with the bearing. Then, the driving gear drives the conveyor belt to drive. The top of the conveyor belt is in contact with the cable inlet and outlet, facilitating the temperature measurement of the cable inside the cable inlet and outlet, achieving semi-automatic cable temperature measurement, reducing labor intensity and working time. However, when measuring the temperature of the cables between power grid nodes, due to the large number of cables between nodes, gradually accurate temperature measurement will make the temperature measurement process more cumbersome and time-consuming. Moreover, the structure between power grid nodes is relatively complex, and manual temperature measurement is relatively dangerous. Therefore, the situation of manual temperature measurement needs to be avoided. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-node wireless temperature measurement device and method for power grids to solve the problems of manual temperature measurement and too long temperature measurement cycle in the above-mentioned background art.

[0005] To solve the above technical problems, the technical solutions adopted by the present invention are:

[0006] A multi-node power grid wireless temperature measurement device includes a frame. On two frames, a driving mechanism for driving the device to move is installed. On the side of the driving mechanism away from the frame, a side frame is fixedly installed. On one side of the side frame, a monitoring mechanism for preliminarily measuring the temperature of the line is fixedly installed. At both ends of the frame, clamping mechanisms for isolating the environment and measuring the temperature of the line are installed. On one side of the monitoring mechanism, a processing mechanism for treating the surface of the line is provided, and the processing mechanism is fixedly installed on one side of the side frame; the monitoring mechanism includes an installation frame fixedly installed on one side of the side frame. A fixed bracket is slidably connected to the installation frame. At the bottom end of the fixed bracket, an infrared detection device is fixedly installed. On both sides of the fixed bracket, moving wheels that are in extrusion fit with the line are rotatably connected.

[0007] With the above technical solution, during the process of measuring the temperature of the power grid nodes, since the installation locations of some power grids are inconvenient for workers to measure the temperature of the power grid nodes, this causes inconvenience in the process of measuring the temperature of the power grid nodes. Therefore, workers use this device to walk on the cable to measure the temperature of the cables of the power grid nodes; during the test, the worker first places the device on the cable of the power grid node. Subsequently, the driving mechanism starts to drive the device to walk along the cable. During the walking process, the monitoring mechanism set on the device can quickly provide real-time and rough temperature feedback. Where the measured temperature is deviated, the processing mechanism is used to treat the surface of the cable with deviation. Subsequently, the clamping mechanism is used to clamp the treated cable, and the influence of the environment is excluded through the clamping mechanism, and the temperature of the cable is accurately measured again;

[0008] When the driving mechanism drives the device to walk along the cable, at this time, the moving wheels press on the upper surface of the cable, and the moving wheels are connected to the fixed bracket. As the moving wheels are squeezed by the cable, the moving wheels will drive the fixed bracket to move upward along the installation frame. There is a compression spring between the installation frame and the fixed bracket. As the fixed bracket moves upward, the fixed bracket will compress the compression spring. When not testing the cable, at this time, the compression spring will drive the fixed bracket to move downward, so that the infrared detection device and the moving wheels as a whole will descend, so that the moving wheels will fit tightly with the cable when the device is used next time, further increasing the stability of the device during use. As the device moves, the infrared detection device will continuously provide rough temperature feedback on the cable, which is convenient for cooperating with the device to measure the temperature of the cable.

[0009] A further improvement of the technical solution of the present invention lies in that: the driving mechanism includes a synchronous belt driving structure fixedly installed on both sides of the side frame. One end of the synchronous belt driving structure is fixedly installed with a driving wheel. The bottom end of the side frame is rotatably connected with a swing arm through a torsion spring. One end of the swing arm is rotatably connected with a cross bar. On one side of the cross bar, there are symmetrically rotatably connected with mating wheels that are in transmission cooperation with the driving wheel. One side of the two mating wheels is rotatably connected with a mating seat. The side of the driving wheel away from the side frame is rotatably connected with a fixed block. On the side of the side frame away from the driving wheel, there are symmetrically rotatably connected with swing arms. The ends of the two swing arms away from the side frame are rotatably connected with a connecting frame. One side of one of the swing arms is rotatably connected with one end of a spring damper, and the other end of the spring damper is rotatably connected with one end of the connecting frame.

[0010] With the above technical solution, when it is necessary to drive the device to move along the cable, first place the device on the cable, clamp the cable through the driving wheel and the mating wheel, and then realize the effective clamping of the cable by the driving wheel and the mating wheel through the clamping between the mating seat and the fixed block. After that, drive the driving wheel through the synchronous belt driving structure to realize the overall movement of the device, so that the device can move smoothly, further increasing the stability of the device during movement. Both ends of the frame are rotatably connected with swing arms through fixed blocks, and the swing arms and the connecting frame are rotatably connected, so that a parallelogram structure is formed among the fixed block, the swing arm and the connecting frame. And a spring damper is installed at the inner diagonal of this parallelogram, which can realize elastic structural changes, so that the device will not shake even if there is bumpiness during the traveling process.

[0011] A further improvement of the technical solution of the present invention lies in that: the driving mechanism further includes a swing bracket rotatably connected to the lower surface of the frame. One ends of the two swing brackets are respectively rotatably connected with the two ends of a connecting block. Guide rods are slidably connected to the upper and lower surfaces of the two connecting blocks, and auxiliary springs are sleeved at both ends of the guide rods. Convex blocks that are slidably connected with the guide rods are arranged on the upper and lower sides of the connecting block. Two hydraulic rods are fixedly installed in the middle of the four guide rods through a fixed seat. The output ends of the two hydraulic rods are respectively fixedly connected with one side of the two connecting blocks. Sliding seats are fixedly installed on the upper surfaces of the two frames. A sliding rod is rotatably connected between the two sliding seats, and mating springs are sleeved at both ends of the sliding rod.

[0012] By adopting the above technical solution, when the distance between parallel cables increases, the two frames will be pulled to both sides by external force, so that the swing bracket under the frame will rotate, and the rotation coordination between the swing bracket and the connecting block allows the length between the swing bracket and the connecting block to change randomly. In order to make the swing bracket and the connecting block controllable when they change, the swing bracket and the connecting block are connected to the hydraulic rod, so that buffering can be performed during deformation, so that the deformation amount will not surge, and the stability of the device during operation can be maintained as much as possible. A sliding bar is provided at the top of the frame to increase its operating stability.

[0013] The further improvement of the technical scheme of the present invention is that the clamping mechanism includes a fixed bin symmetrically fixedly installed at both ends of the frame, the fixed bin is symmetrically slidably connected with a rack, the inner side of the fixed bin is symmetrically rotatably connected with a gear, and the gear and the rack are meshed together, and a mounting block is fixedly installed on the lower surface of the two racks, and a vertical plate is symmetrically fixedly installed on the inner sides of the two fixed bins, a working motor is fixedly installed on one side of one of the vertical plates, a screw rod is rotatably connected between the two vertical plates, the output end of the working motor passes through the side wall of the vertical plate and is fixedly connected to one end of the screw rod, a sliding seat is threadedly connected on the screw rod, and two ends of the sliding seat are respectively fixedly connected to one side of the mounting block, a rotating arm is fixedly installed on one side of the gear, the top of the rotating arm is rotatably connected with a mounting support arm, and a shielding cover is fixedly installed on the end of the mounting support arm away from the rotating arm, an electric push rod is symmetrically fixedly installed on the top of the shielding cover, the output ends of the two electric push rods are fixedly installed with a mounting seat through the side wall of the shielding cover, and a temperature testing device for measuring the temperature of the circuit is fixedly connected between the two mounting seats.

[0014] By adopting the above technical scheme, when the monitoring mechanism detects temperature deviation on the cable, the working motor starts to work, and the working motor drives the lead screw to rotate. As the lead screw rotates, the slide is driven to move. As the slide moves, the slide cooperates with the mounting block to drive the rack to move. As the rack moves, the rack drives the gear to rotate, and the gear drives the rotating arm to make the rotating arm move in a circle around the gear. The top end of the rotating arm is rotatably connected to the mounting arm, and a parallelogram structure is formed between the gear, the rotating arm and the mounting arm. As the rotating arm swings, the mounting arm will swing accordingly, and then the shielding cover will swing, so that the cable is wrapped. The shielding cover can eliminate the interference of the external environment during the secondary temperature measurement, further increasing the accuracy of the temperature measurement of the device. Subsequently, the electric push rod works again to drive the mounting seat to descend. As the mounting seat descends, the temperature testing device and the cable are accurately measured.

[0015] A further improvement of the technical solution of the present invention lies in that: the processing mechanism includes an installation sleeve fixedly installed on one side of the side frame. A rotating gear ring is rotatably connected inside the installation sleeve. A cleaning brush is fixedly installed inside the rotating gear ring. A driving motor is fixedly installed at the top of the installation sleeve. A driving gear ring is fixedly installed at the output end of the driving motor, and the driving gear ring is meshed with the rotating gear ring.

[0016] With the above technical solution, when the device is placed on the cable, the installation sleeve is sleeved outside the cable. At this time, the driving motor drives the rotating gear ring to rotate through the driving gear ring. As the rotating gear ring rotates, the rotating gear ring will cooperate with the cleaning brush inside it to clean the surface of the cable, so as to keep the monitoring mechanism and the clamping mechanism stable and accurate during the test.

[0017] A further improvement of the technical solution of the present invention lies in that: an expansion structure for increasing the stability of the device is fixedly installed on the lower surface of the frame. The expansion structure includes an expansion frame fixedly installed in the middle of the guide rod. A movable frame is rotatably connected to the bottom of the expansion frame. A cylinder is rotatably connected to the top of the expansion frame. The output end of the cylinder is rotatably connected to one end of the movable frame. An extension rope is fixedly installed at the top of the expansion frame, and a counterweight is fixedly installed at the bottom end of the extension rope.

[0018] With the above technical solution, when the device is placed on the cable, at this time, the cylinder drives the movable frame to deform, so that the movable frame no longer restricts the counterweight. When the counterweight is not restricted by the movable frame, the counterweight will fall, and through the traction of the extension rope, the center of gravity of the device is adjusted.

[0019] A further improvement of the technical solution of the present invention lies in that: a convex rod for restricting the counterweight is arranged inside the movable frame, and fitting grooves for engaging with the convex rods on both sides of the movable frame are symmetrically opened on both sides of the counterweight.

[0020] With the above technical solution, the cross bar inside the movable frame can restrict the counterweight. In order to increase the cooperation degree between the counterweight and the movable frame, fitting grooves for inserting and cooperating with the movable frame are arranged on both sides of the counterweight, thereby increasing the cooperation degree of the device.

[0021] The present invention also provides a temperature measurement method, including:

[0022] S1. Device preparation: When it is necessary to measure the temperature of the power grid node, place the device on the cable and perform multi-point temperature measurement detection on the cable through the device;

[0023] S2. Cable temperature measurement: Walk the device on the cable, and multi-point detection of the cable can be performed during the walking process;

[0024] S3. Precise temperature measurement. During the detection process, the monitoring mechanism set on the device can preliminarily measure the temperature of the cable. At the place where the temperature fluctuates, the processing mechanism is used to process the outer surface of the cable segment with fluctuations. Subsequently, the clamping mechanism is used to perform secondary precise temperature measurement on the cable to prevent the external environment from affecting the temperature measurement data.

[0025] Due to the adoption of the above technical solution, the technical progress achieved by the present invention compared with the prior art is as follows:

[0026] 1. Through the setting of the monitoring mechanism, the present invention can instantaneously and roughly feedback the temperature state of the cable, quickly locate the temperature abnormal area, thereby effectively shortening the temperature measurement process of long-distance cables and realizing rapid testing. This process not only accelerates the temperature measurement process, but also improves the efficiency and accuracy of cable maintenance through real-time monitoring, further ensuring the safety and stability of cable operation.

[0027] 2. Through the setting of the clamping mechanism, the present invention realizes secondary precise temperature measurement of the cable temperature, can quickly complete the temperature measurement of the cable, and accurately feedback the temperature value of the temperature abnormal area in real time. In order to greatly improve the accuracy of secondary temperature measurement, a shielding cover isolated from the external environment is also set in the clamping mechanism. The shielding cover effectively excludes the interference of external environmental factors such as temperature fluctuations and wind speed changes during the temperature measurement process, thus ensuring the accuracy and reliability of temperature measurement.

[0028] 3. The coordinated work of the monitoring mechanism and the clamping mechanism of the present invention realizes the rapid and accurate positioning and precise measurement of the temperature abnormal area of long-distance cables. The mutual cooperation of the two not only quickly feedbacks the specific position and temperature value of the abnormal area, but also effectively shortens the overall process of cable temperature measurement through the dual temperature measurement mode of rough measurement and precise measurement, improving the temperature measurement efficiency and accuracy.

[0029] 4. Through the setting of the processing mechanism, the present invention enables the device to quickly remove impurities on the cable surface during the moving process. The processing mechanism not only improves the convenience of the device for cable temperature measurement, but also effectively prevents impurities from interfering with the movement and temperature measurement accuracy of the device, ensuring the efficiency and precision of the temperature measurement process.

[0030] 5. In order to increase the stability of the device during operation and avoid the unstable operation of the device due to environmental influence at high altitudes, the device is provided with an extended structure for adjusting the center of gravity of the device, which can adjust the center of gravity of the device when the device is placed on the cable, thereby making the device more stable on the cable. Description of the Drawings

[0031] The following further describes the present invention with reference to the drawings.

[0032] Figure 1It is the first perspective of the structural schematic diagram of the overall device of the present invention;

[0033] Figure 2 It is the second perspective of the structural schematic diagram of the overall device of the present invention;

[0034] Figure 3 It is the first perspective of the structural schematic diagram of the driving mechanism of the present invention;

[0035] Figure 4 It is the second perspective of the structural schematic diagram of the driving mechanism of the present invention;

[0036] Figure 5 It is the structural schematic diagram of a part of the driving mechanism of the present invention;

[0037] Figure 6 It is the structural schematic diagram of the monitoring mechanism of the present invention;

[0038] Figure 7 It is the first perspective of the structural schematic diagram of the clamping mechanism of the present invention;

[0039] Figure 8 It is the second perspective of the structural schematic diagram of the clamping mechanism of the present invention;

[0040] Figure 9 It is the third perspective of the structural schematic diagram of the clamping mechanism of the present invention;

[0041] Figure 10 It is the structural schematic diagram of the processing mechanism of the present invention;

[0042] Figure 11 It is the first perspective of the structural schematic diagram of the expansion structure of the present invention;

[0043] Figure 12 It is the second perspective of the structural schematic diagram of the expansion structure of the present invention.

[0044] In the figure: 1, frame; 2, drive mechanism; 3, side frame; 4, monitoring mechanism; 5, clamping mechanism; 6, processing mechanism; 7, synchronous belt drive structure; 8, drive wheel; 9, swing arm; 10, cross bar; 11, mating wheel; 12, mating seat; 13, fixed block; 14, swing arm; 15, spring shock absorber; 16, connecting frame; 17, swing bracket; 18, connecting block; 19, guide rod; 20, auxiliary spring; 21, fixed seat; 22, hydraulic rod; 23, sliding seat; 24, slide bar; 25, mating spring; 26, mounting frame; 27, fixed bracket; 28, infrared detection device; 29, moving wheel; 30, fixed bin; 31, rack; 32, gear; 33, mounting block; 34, vertical plate; 35, working motor; 36, lead screw; 37, sliding seat; 38, rotating arm; 39, mounting support arm; 40, shielding cover; 41, electric push rod; 42, mounting seat; 43, temperature testing device; 44, mounting sleeve; 45, rotating gear ring; 46, cleaning brush; 47, drive motor; 48, drive gear ring; 49, extension frame; 50, variable frame; 51, cylinder; 52, extension rope; 53, counterweight block. Detailed implementation mode

[0045] The present invention will be further described in detail below with reference to the embodiments:

[0046] Embodiment 1

[0047] As Figures 1 - 6 shown, the present invention provides a multi-node power grid wireless temperature measurement device and temperature measurement method, including a frame 1. A drive mechanism 2 for driving the device to move is installed on two frames 1. A side frame 3 is fixedly installed on the side of the drive mechanism 2 away from the frame 1. A monitoring mechanism 4 for initially measuring the temperature of the line is fixedly installed on one side of the side frame 3. Clamping mechanisms 5 for isolating the environment of the line for temperature measurement are installed at both ends of the frame 1. A processing mechanism 6 for processing the surface of the line is provided on one side of the monitoring mechanism 4, and the processing mechanism 6 is fixedly installed on one side of the side frame 3; The monitoring mechanism 4 includes a mounting frame 26 fixedly installed on one side of the side frame 3. A fixed bracket 27 is slidably connected to the mounting frame 26. An infrared detection device 28 is fixedly installed at the bottom end of the fixed bracket 27. Moving wheels 29 that are rotationally connected to both sides of the fixed bracket 27 and are in extrusion fit with the line are provided.

[0048] In this embodiment, during the process of measuring the temperature of power grid nodes, since the installation locations of some power grids are inconvenient for staff to measure the temperature of power grid nodes, this causes inconvenience in the process of measuring the temperature of power grid nodes. Therefore, the staff use this device to walk on the cable to measure the temperature of the cable of the power grid node; during the test, the staff first place the device on the cable of the power grid node, and then the driving mechanism 2 starts to drive the device to walk along the cable. During the walking process, the monitoring mechanism 4 provided on the device can quickly provide real-time rough temperature feedback. Where the measured temperature is deviated, the processing mechanism 6 is used to process the surface of the cable where the deviation occurs. Subsequently, the clamping mechanism 5 is used to clamp the processed cable. By means of the clamping mechanism 5, the influence of the environment is excluded, and the accurate temperature measurement of the cable is carried out again;

[0049] When the driving mechanism 2 drives the device to walk along the cable, at this time, the moving wheel 29 presses on the upper surface of the cable, and the moving wheel 29 is connected to the fixed bracket 27. As the moving wheel 29 is squeezed by the cable, the moving wheel 29 will drive the fixed bracket 27 to move upward along the mounting bracket 26. An extrusion spring is provided between the mounting bracket 26 and the fixed bracket 27. As the fixed bracket 27 moves upward, the fixed bracket 27 will compress the extrusion spring. When the cable is not being tested, at this time, the extrusion spring will drive the fixed bracket 27 to move downward, so that the overall infrared detection device 28 and the moving wheel 29 will descend, so that when the device is used next time, the moving wheel 29 will closely fit with the cable, further increasing the stability of the device during use. As the device moves, the infrared detection device 28 will continuously provide rough temperature feedback on the cable, which is convenient for the device to measure the temperature of the cable.

[0050] Embodiment 2

[0051] During the movement of the device, the device shakes, which will cause the situation that the front and rear heights of the device are inconsistent, which is not conducive to the temperature measurement work of the device. Therefore, this device is provided with a driving mechanism 2 for driving the device to move smoothly, so that the device can still move stably on the cable even in case of bumps.

[0052] Such as Figures 3 - 5As shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, the driving mechanism 2 includes synchronous belt driving structures 7 fixedly installed on both sides of the side frame 3. One end of the synchronous belt driving structure 7 is fixedly installed with a driving wheel 8. The bottom end of the side frame 3 is rotationally connected with a swing arm 9 through a torsion spring. One end of the swing arm 9 is rotationally connected with a cross bar 10. On one side of the cross bar 10, there are symmetrically rotationally connected with mating wheels 11 that are in transmission cooperation with the driving wheel 8. One side of the two mating wheels 11 is rotationally connected with a mating seat 12. The side of the driving wheel 8 away from the side frame 3 is rotationally connected with a fixed block 13. On the side of the side frame 3 away from the driving wheel 8, there are symmetrically rotationally connected with swing arms 14. The ends of the two swing arms 14 away from the side frame 3 are rotationally connected with a connecting frame 16. One side of one of the swing arms 14 is rotationally connected with one end of a spring damper 15, and the other end of the spring damper 15 is rotationally connected with one end of the connecting frame 16.

[0053] In this embodiment, when it is necessary to drive the device to move along the cable, first place the device on the cable, clamp the cable through the driving wheel 8 and the mating wheel 11, and then realize the effective clamping of the cable by the driving wheel 8 and the mating wheel 11 through the clamping between the mating seat 12 and the fixed block 13. After that, drive the driving wheel 8 through the synchronous belt driving structure 7 to realize the overall movement of the device, so that the device can move smoothly, further increasing the stability of the device during movement. Both ends of the frame 1 are rotationally connected with swing arms 14 through fixed blocks 13, and the swing arms 14 and the connecting frame 16 are rotationally connected, so that a parallelogram structure is formed among the fixed block 13, the swing arm 14 and the connecting frame 16. And a spring damper 15 is installed at the inner diagonal of this parallelogram, which can realize elastic structural changes, so that the device will not shake even if there is jolt during the traveling process.

[0054] During the movement on the cable, due to the high height, this will cause the device to tilt actively. During this process, the distance between the parallel cables will increase, which will pull the device. Therefore, the present device is provided with a driving mechanism 2 for adjusting the distance between the frames 1, so that the device can maintain stability when moving on the cable.

[0055] Such as Figures 3 - 5As shown, in the present embodiment, preferably, the driving mechanism 2 further comprises a swing bracket 17 rotatably connected to the lower surface of the frame 1, one end of the two swing brackets 17 are rotatably connected to the two ends of the connecting block 18 respectively, the upper and lower surfaces of the two connecting blocks 18 are slidably connected with guide rods 19, and both ends of the guide rods 19 are sleeved with auxiliary springs 20, the upper and lower sides of the connecting block 18 are provided with protrusions slidably connected with the guide rods 19, the middle part of the four guide rods 19 is fixedly installed with two hydraulic rods 22 through a fixed seat 21, the output ends of the two hydraulic rods 22 are respectively fixedly connected to one side of the two connecting blocks 18, a sliding seat 23 is fixedly installed on the upper surface of the two frames 1, a sliding rod 24 is rotatably connected between the two sliding seats 23, and both ends of the sliding rod 24 are sleeved with matching springs 25.

[0056] In this embodiment, when the distance between the parallel cables increases, the two frames 1 will be pulled to both sides by external force, so that the swing bracket 17 under the frame 1 rotates, and the rotational coordination between the swing bracket 17 and the connecting block 18 allows the length between the swing bracket 17 and the connecting block 18 to change randomly. In order to make the swing bracket 17 and the connecting block 18 controllable when they change, the swing bracket 17 and the connecting block 18 are connected to the hydraulic rod 22, so that buffering can be performed when deformation occurs, so that the deformation amount will not surge, and the stability of the device during operation can be maintained as much as possible. A sliding bar 24 is provided at the top of the frame 1 to increase its operating stability.

[0057] Example 3

[0058] When the monitoring mechanism 4 performs a rough temperature detection, the temperature is not accurate because it is a rapid temperature during walking and is affected by the environment during the test. Therefore, it is necessary to further increase the accuracy of the temperature test. Therefore, the device is provided with a clamping mechanism 5 for increasing the temperature measurement accuracy, so as to test the temperature more accurately.

[0059] like Figures 7 - 9As shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, the clamping mechanism 5 includes fixed bins 30 symmetrically and fixedly installed at both ends of the frame 1. Rack bars 31 are symmetrically and slidably connected to the fixed bins 30. Gears 32 are symmetrically and rotatably connected to the inner sides of the fixed bins 30, and the gears 32 are meshed with the rack bars 31. Mounting blocks 33 are fixedly installed on the lower surfaces of the two rack bars 31. Vertical plates 34 are symmetrically and fixedly installed on the inner sides of the two fixed bins 30. A working motor 35 is fixedly installed on one side of one of the vertical plates 34. A lead screw 36 is rotatably connected between the two vertical plates 34. The output end of the working motor 35 passes through the side wall of the vertical plate 34 and is fixedly connected to one end of the lead screw 36. A sliding seat 37 is threadedly connected to the lead screw 36. Both ends of the sliding seat 37 are respectively fixedly connected to one side of the mounting block 33. A rotating arm 38 is fixedly installed on one side of the gear 32. The top end of the rotating arm 38 is rotatably connected to a mounting support arm 39. A shielding cover 40 is fixedly installed at the end of the mounting support arm 39 away from the rotating arm 38. Electric push rods 41 are symmetrically and fixedly installed at the top end of the shielding cover 40. The output ends of the two electric push rods 41 pass through the side wall of the shielding cover 40 and are fixedly installed with mounting seats 42. A temperature testing device 43 for measuring the temperature of the line is fixedly connected between the two mounting seats 42.

[0060] In this embodiment, when the monitoring mechanism 4 detects a temperature deviation on the cable, at this time, the working motor 35 starts to work, drives the lead screw 36 to rotate through the working motor 35. As the lead screw 36 rotates, the sliding seat 37 is driven to move. As the sliding seat 37 moves, the sliding seat 37 cooperates with the mounting block 33 to drive the rack bar 31 to move. As the rack bar 31 moves, the rack bar 31 drives the gear 32 to rotate, and the gear 32 drives the rotating arm 38 to make the rotating arm 38 perform a circular motion around the gear 32. The top end of the rotating arm 38 is rotatably connected to the mounting support arm 39, and a parallelogram structure is formed among the gear 32, the rotating arm 38, and the mounting support arm 39. As the rotating arm 38 swings, the mounting support arm 39 will swing accordingly, thereby making the shielding cover 40 swing, so as to wrap the cable. By wrapping the shielding cover 40, the interference of the external environment is excluded during the secondary temperature measurement, further increasing the accuracy of the device for temperature measurement. Subsequently, the electric push rod 41 works again, driving the mounting seat 42 to descend. As the mounting seat 42 descends, the temperature testing device 43 is made to accurately measure the temperature of the cable.

[0061] Embodiment 4

[0062] During the walking process, some debris will adhere to the surface of the cable, which will affect the accuracy of the temperature measurement during the testing of the monitoring mechanism 4 and the clamping mechanism 5. Therefore, it is necessary to clean the attachments on the surface of the cable during the testing process to further increase the accuracy and convenience of the device during temperature measurement.

[0063] like Figure 10 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the processing mechanism 6 includes a mounting sleeve 44 fixedly mounted on one side of the side frame 3, the interior of the mounting sleeve 44 is rotatably connected with a rotating ring gear 45, the inner ring of the rotating ring gear 45 is fixedly mounted with a cleaning brush 46, the top of the mounting sleeve 44 is fixedly mounted with a driving motor 47, the output end of the driving motor 47 is fixedly mounted with a driving ring gear 48, and the driving ring gear 48 is meshingly connected with the rotating ring gear 45.

[0064] In this embodiment, when the device is placed on the cable, the mounting sleeve 44 is sleeved on the outside of the cable. At this time, the driving motor 47 drives the rotating ring gear 45 to rotate through the driving ring gear 48. As the rotating ring gear 45 rotates, the rotating ring gear 45 will cooperate with the cleaning brush 46 on its inner ring to clean the cable surface, thereby allowing the monitoring mechanism 4 and the clamping mechanism 5 to maintain stability and accuracy during the test.

[0065] When the device is placed on the cable, it is at a high place and has a large volume, so it will be affected by the wind and will shake greatly, which will make the device unstable during the movement. Therefore, the device is provided with an extended structure for adjusting the center of gravity of the device. When the device is placed on the cable, the center of gravity of the device can be adjusted, thereby making the device more stable on the cable.

[0066] like Figure 11 and Figure 12 As shown, in the present embodiment, preferably, an extension structure for increasing the stability of the device is fixedly installed on the lower surface of the frame 1, and the extension structure includes an extension frame 49 fixedly installed in the middle of the guide rod 19, the bottom of the extension frame 49 is rotatably connected to a variable frame 50, the top of the extension frame 49 is rotatably connected to a cylinder 51, the output end of the cylinder 51 is rotatably connected to one end of the variable frame 50, an extension rope 52 is fixedly installed on the top of the extension frame 49, and a counterweight block 53 is fixedly installed on the bottom end of the extension rope 52.

[0067] In this embodiment, when the device is placed on the cable, the cylinder 51 drives the movable frame 50 to deform, so that the movable frame 50 no longer restricts the counterweight 53. When the counterweight 53 is not restricted by the movable frame 50, the counterweight 53 will fall, and the center of gravity of the device can be adjusted by traction of the extension rope 52.

[0068] like Figure 12 As shown, in this embodiment, preferably, a protruding rod for limiting the counterweight block 53 is provided inside the variable frame 50, and matching grooves for mutually engaging with the protruding rods on both sides of the variable frame 50 are symmetrically provided on both sides of the counterweight block 53.

[0069] In this embodiment, the convex rod inside the movable frame 50 can restrict the counterweight 53. In order to increase the fit between the counterweight 53 and the movable frame 50, mating grooves for plugging and mating with the movable frame 50 are provided on both sides of the counterweight 53, thereby increasing the fit of the device.

[0070] The present invention also provides a temperature measurement method, including:

[0071] S1. Device preparation: When it is necessary to measure the temperature of a power grid node, place the device on the cable, and perform multi-point temperature measurement and detection on the cable through the device;

[0072] S2. Cable temperature measurement: The device walks on the cable, and during the walking process, multi-point detection of the cable can be carried out;

[0073] S3. Precise temperature measurement: During the detection process, the cable can be initially temperature-measured through the monitoring mechanism 4 provided on the device. At the place where the temperature fluctuates, the outer surface of the cable section with fluctuations is processed through the processing mechanism 6. Subsequently, the cable is subjected to secondary precise temperature measurement through the clamping mechanism 5 to prevent the external environment from affecting the temperature measurement data.

[0074] The working principle of the multi-node power grid wireless temperature measurement device and the temperature measurement method will be specifically described below.

[0075] As Figures 1 - 12 shown, during the test, the staff first place the device on the cable of the power grid node, and then the driving mechanism 2 starts to drive the device to walk along the cable;

[0076] When the driving device needs to move along the cable, first place the device on the cable, clamp the cable with the driving wheel 8 and the mating wheel 11, and then realize the effective clamping of the driving wheel 8 and the mating wheel 11 to the cable through the clamping between the mating seat 12 and the fixing block 13. After that, drive the driving wheel 8 through the synchronous belt drive structure 7 to realize the overall movement of the device, so that the device can move smoothly, further increasing the stability of the device during movement. Both ends of the frame 1 are rotatably connected with swing arms 14 through fixing blocks 13, and the swing arms 14 are rotatably connected with the connecting frame 16, so that a parallelogram structure is formed among the fixing blocks 13, the swing arms 14 and the connecting frame 16. A spring shock absorber 15 is installed at the inner diagonal of this parallelogram, which can realize elastic structural changes, so that the device will not shake even if there is a bump during the traveling process; In addition, when the distance between the parallel cables increases, at this time, the two frames 1 will be pulled to both sides by an external force, so that the swing bracket 17 under the frame 1 rotates, and the rotational cooperation between the swing bracket 17 and the connecting block 18 enables the length between the swing bracket 17 and the connecting block 18 to change randomly. In order to make the change of the swing bracket 17 and the connecting block 18 controllable, the swing bracket 17 and the connecting block 18 are connected to the hydraulic rod 22, so that buffering can be carried out during deformation, so that the amount of deformation will not surge, and the stability of the device during operation is maintained as much as possible. A sliding rod 24 for increasing its operating stability is provided at the top of the frame 1;

[0077] During the walking process, the monitoring mechanism 4 provided on the device can quickly provide real-time rough temperature feedback. When the driving mechanism 2 drives the device to walk along the cable, at this time, the moving wheel 29 presses on the upper surface of the cable, and the moving wheel 29 is connected to the fixed bracket 27. As the moving wheel 29 is squeezed by the cable, the moving wheel 29 will drive the fixed bracket 27 to move upward along the mounting bracket 26. An extrusion spring is provided between the mounting bracket 26 and the fixed bracket 27. As the fixed bracket 27 moves upward, the fixed bracket 27 will compress the extrusion spring. When the cable is not being tested, at this time, the extrusion spring will drive the fixed bracket 27 to move downward, so that the infrared detection device 28 and the moving wheel 29 as a whole move downward, so that the moving wheel 29 will fit tightly with the cable when the device is used next time, further increasing the stability of the device during use. As the device moves, the infrared detection device 28 will continuously provide rough temperature feedback on the cable, which is convenient for the device to measure the temperature of the cable;

[0078] Where the measured temperature is deviated, the surface of the cable with deviation is then processed by the processing mechanism 6. When the device is placed on the cable, the installation sleeve 44 is sleeved outside the cable. At this time, the driving motor 47 drives the rotating gear ring 45 to rotate through the driving gear ring 48. As the rotating gear ring 45 rotates, the rotating gear ring 45 will cooperate with the cleaning brush 46 inside it to clean the surface of the cable, so as to keep the monitoring mechanism 4 and the clamping mechanism 5 stable and accurate during the test;

[0079] Subsequently, the processed cable is clamped by the clamping mechanism 5 to eliminate the influence of the environment, and the accurate temperature measurement of the cable is carried out again. When the monitoring mechanism 4 detects a temperature deviation on the cable, at this time, the working motor 35 starts to work, drives the lead screw 36 to rotate through the working motor 35. As the lead screw 36 rotates, the slide seat 37 is driven to move. As the slide seat 37 moves, the slide seat 37 will cooperate with the mounting block 33 to drive the rack 31 to move. As the rack 31 moves, the rack 31 will drive the gear 32 to rotate, and the gear 32 will drive the rotating arm 38 to make the rotating arm 38 perform a circular motion around the gear 32. The top of the rotating arm 38 is rotatably connected to the mounting support arm 39, and a parallelogram structure is formed among the gear 32, the rotating arm 38 and the mounting support arm 39. As the rotating arm 38 swings, the mounting support arm 39 will swing accordingly, so as to make the shielding cover 40 swing, thereby wrapping the cable. By wrapping the cable with the shielding cover 40, the interference of the external environment is eliminated during the secondary temperature measurement, and the accuracy of the temperature measurement of the device is further increased. Subsequently, the electric push rod 41 works again to drive the mounting seat 42 to descend. As the mounting seat 42 descends, the temperature test device 43 is used to accurately measure the temperature of the cable.

[0080] The above has generally described the present invention in detail, but based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present invention are all within the protection scope of the present invention.

Claims

1. A multi-node power grid wireless temperature measurement device, characterized in that: include: A frame (1), two frames (1) are provided with a driving mechanism (2) for driving a device to move, a side frame (3) is fixedly installed on a side of the driving mechanism (2) away from the frame (1), a monitoring mechanism (4) for initially measuring the temperature of the line is fixedly installed on one side of the side frame (3), both ends of the frame (1) are provided with a clamping mechanism (5) for isolating the line from the environment and measuring the temperature, a processing mechanism (6) for processing the surface of the line is provided on one side of the monitoring mechanism (4), and the processing mechanism (6) is fixedly installed on one side of the side frame (3); The monitoring mechanism (4) comprises a mounting frame (26) fixedly mounted on one side of the side frame (3), a fixed bracket (27) slidably connected to the mounting frame (26), an infrared detection device (28) fixedly mounted on the bottom end of the fixed bracket (27), and moving wheels (29) rotatably connected on both sides of the fixed bracket (27) that are pressed and matched with the circuit; The driving mechanism (2) comprises a synchronous belt driving structure (7) fixedly mounted on both sides of the side frame (3), a driving wheel (8) being fixedly mounted on one end of the synchronous belt driving structure (7), a swing arm (9) being rotationally connected to the bottom end of the side frame (3) via a torsion spring, a cross bar (10) being rotationally connected to one end of the swing arm (9), a matching wheel (11) being symmetrically rotationally connected to the driving wheel (8) on one side of the cross bar (10), and one side of the two matching wheels (11) being rotationally connected to the driving wheel (8) on the other side. A matching seat (12) is connected, the side of the driving wheel (8) away from the side frame (3) is rotatably connected to a fixed block (13), the side of the side frame (3) away from the driving wheel (8) is symmetrically rotatably connected to a swing arm (14), one end of the two swing arms (14) away from the side frame (3) is rotatably connected to a connecting frame (16), one side of one of the swing arms (14) is rotatably connected to one end of a spring shock absorber (15), and the other end of the spring shock absorber (15) is rotatably connected to one end of the connecting frame (16); The driving mechanism (2) further comprises a swing bracket (17) rotatably connected to the lower surface of the frame (1), one end of the two swing brackets (17) are rotatably connected to the two ends of the connecting block (18), the upper and lower surfaces of the two connecting blocks (18) are slidably connected with guide rods (19), and the two ends of the guide rods (19) are sleeved with auxiliary springs (20), the upper and lower sides of the connecting block (18) are provided with protrusions slidably connected with the guide rods (19), the middle parts of the four guide rods (19) are fixedly mounted with two hydraulic rods (22) through a fixed seat (21), the output ends of the two hydraulic rods (22) are fixedly connected to one side of the two connecting blocks (18), the upper surfaces of the two frames (1) are fixedly mounted with sliding seats (23), a sliding rod (24) is rotatably connected between the two sliding seats (23), and the two ends of the sliding rod (24) are sleeved with matching springs (25).

2. A multi-node power grid wireless temperature measurement device according to claim 1, characterized in that: The clamping mechanism (5) comprises a fixed bin (30) symmetrically fixedly mounted on both ends of the frame (1); a rack (31) is symmetrically slidably connected to the fixed bin (30); a gear (32) is symmetrically rotatably connected to the inner side of the fixed bin (30); the gear (32) and the rack (31) are meshingly connected; mounting blocks (33) are fixedly mounted on the lower surfaces of the two racks (31); vertical plates (34) are symmetrically fixedly mounted on the inner sides of the two fixed bins (30); a working motor (35) is fixedly mounted on one side of one of the vertical plates (34); a screw rod (36) is rotatably connected between the two vertical plates (34); an output end of the working motor (35) passes through a side wall of the vertical plate (34) and one end of the screw rod (36); The screw rod (36) is fixedly connected with a slide seat (37) threadedly connected thereto, and both ends of the slide seat (37) are respectively fixedly connected to one side of the mounting block (33); a rotating arm (38) is fixedly installed on one side of the gear (32); the top end of the rotating arm (38) is rotatably connected to a mounting support arm (39); a shielding cover (40) is fixedly installed on one end of the mounting support arm (39) away from the rotating arm (38); an electric push rod (41) is symmetrically fixedly installed on the top end of the shielding cover (40); the output ends of the two electric push rods (41) are fixedly installed with mounting seats (42) through the side walls of the shielding cover (40); and a temperature testing device (43) for measuring the temperature of the circuit is fixedly connected between the two mounting seats (42).

3. A multi-node power grid wireless temperature measurement device according to claim 2, characterized in that: The processing mechanism (6) comprises a mounting sleeve (44) fixedly mounted on one side of the side frame (3), the mounting sleeve (44) being rotatably connected to a rotating ring gear (45), the inner ring of the rotating ring gear (45) being fixedly mounted with a cleaning brush (46), the top end of the mounting sleeve (44) being fixedly mounted with a driving motor (47), the output end of the driving motor (47) being fixedly mounted with a driving ring gear (48), and the driving ring gear (48) being meshingly connected with the rotating ring gear (45).

4. A multi-node power grid wireless temperature measurement device according to claim 3, characterized in that: An extension structure for increasing the stability of the device is fixedly mounted on the lower surface of the frame (1), the extension structure comprising an extension frame (49) fixedly mounted on the middle of the guide rod (19), the bottom of the extension frame (49) being rotatably connected to a variable frame (50), the top of the extension frame (49) being rotatably connected to a cylinder (51), the output end of the cylinder (51) being rotatably connected to one end of the variable frame (50), an extension rope (52) being fixedly mounted on the top of the extension frame (49), and a counterweight (53) being fixedly mounted on the bottom end of the extension rope (52).

5. A multi-node power grid wireless temperature measurement device according to claim 4, characterized in that: The interior of the variable frame (50) is provided with a protruding rod for limiting the counterweight block (53), and the two sides of the counterweight block (53) are symmetrically provided with matching grooves that are mutually engaged with the protruding rods on the two sides of the variable frame (50).

6. A temperature measurement method, applicable to a multi-node power grid wireless temperature measurement device as described in any one of claims 1 to 5, characterized in that: include: S1. Device preparation: When it is necessary to measure the temperature of the power grid node, the device is placed on the cable, and the cable is subjected to multi-point temperature measurement through the device; S2, cable temperature measurement, the device is used to walk on the cable, and multiple points of the cable can be tested during the walking process; S3. Accurate temperature measurement. During the detection process, the cable can be initially measured in temperature by a monitoring mechanism (4) provided on the device. Where temperature fluctuation occurs, the outer surface of the cable section where the fluctuation occurs is processed by a processing mechanism (6). Subsequently, the cable is subjected to a second accurate temperature measurement by a clamping mechanism (5) to prevent the external environment from affecting the temperature measurement data.

Images