Insulator insert fastening force detection device

Abstract

The invention discloses an insulator insert fastening force detection device, and particularly relates to the technical field of fastening force detection.The insulator insert fastening force detection device comprises a detection box, a rotating assembly is arranged in the detection box, a cooling assembly is arranged on the upper side of the rotating assembly, and a lifting assembly is arranged on the lower side of the cooling assembly; four limiting assemblies are arranged in the lifting assembly, and a heating test assembly is arranged on the upper side of the detection box. According to the invention, through peak staggering cooperation of the rotating assembly and the lifting assembly, cyclic detection of four groups of insulator insert bodies is realized, the cooling assembly and the heating test assembly are utilized to complete the processes of cold water soaking, hot water spraying and fastening force test, and the cementing fastening force test in an outdoor alternate cooling and heating environment is simulated. The detection result is closer to the actual operation condition, the ultimate bearing capacity of the cementing layer under the dual action of environmental stress and mechanical load is verified, and the problem that traditional static detection is disjointed with the actual stress environment is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fastening force detection, and in particular to a fastening force detection device for an insulator insert. Background Art

[0002] In outdoor power systems, insulator inserts often use adhesive bonding to connect metal accessories to the insulation body. These inserts are widely used in transmission lines, substations, and other scenarios, and are subject to long-term exposure to the dramatic temperature swings caused by diurnal and seasonal variations. For example, at high altitudes, direct sunlight during the day can cause the surface temperature of insulators to rise above 50°C, while temperatures plummet to below 0°C at night. In coastal or rainy areas, the combination of low temperatures after rain and rising temperatures from sunlight creates a frequent alternation between cold and hot weather, causing the adhesive layer to repeatedly contract and expand, continuously accumulating internal stress and potentially leading to long-term bond failure.

[0003] Traditional testing methods are unable to accurately reproduce the impact of such scenarios on adhesive fastening strength, and it is difficult to ensure that the temperature change cycle and temperature difference amplitude experienced by each group of samples are completely consistent. Human operation errors are large, and it is impossible to truly reflect the immediate fastening status after extreme temperature differences. As a result, the test results are out of touch with actual operating conditions, and the guiding value for engineering applications is limited. Summary of the Invention

[0004] The main purpose of the present invention is to provide an insulator insert fastening force detection device, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] An insulator insert fastening force detection device includes a detection box, the upper end of the detection box is fixedly connected to a top plate, the left side of the top plate is provided with a through slot 1, the right side of the top plate is provided with a through slot 2, a rotating assembly is provided inside the detection box, a cooling assembly is provided on the upper side of the rotating assembly, a lifting assembly is provided on the lower side of the cooling assembly, four limit assemblies are provided inside the lifting assembly, and a heating test assembly is provided on the upper side of the detection box.

[0007] Preferably, the rotating assembly includes a fixed block fixedly connected to the left side of the detection box, a motor 1 is fixedly installed on the upper end of the fixed block, a rotating shaft 1 is fixedly connected to the output end of the motor 1, a disc is fixedly connected to the right end of the rotating shaft 1, and a swing arm is fixedly connected to the left end of the disc.

[0008] Preferably, the bottom wall of the inner surface of the detection box is rotatably connected to the rotating shaft 2, the outer surface of the rotating shaft 2 is fixedly connected to a special-shaped seat, the outer surface of the special-shaped seat is provided with four arc-shaped grooves, the outer surface of the swing arm is slidably connected to the arc-shaped grooves, the top end of the rotating shaft 2 is fixedly connected to a rotating block, the upper end of the rotating block is installed with an electric valve, and the bottom end of the rotating shaft 2 is fixedly connected to a guide pipe.

[0009] Preferably, the lifting assembly includes a rotating rod rotatably connected to the front side of the inner surface of the detection box, the left and right sides of the rotating rod are fixedly connected to the swing frame, the lower ends of the two swing frames are slidably connected to the rotating shaft, the lower ends of the two rotating shafts are rotatably connected to the connecting frame, the left and right sides of the inner surface of the detection box are fixedly connected to the limit rod, the outer surfaces of the two limit rods are slidably connected to the connecting frame, and the rear ends of the two connecting frames are fixedly connected to the lifting blocks.

[0010] Preferably, the outer surface of the rotating shaft 1 is rotatably connected to a one-way shaft, the outer surface of the one-way shaft is fixedly connected to an eccentric wheel, the outer surface of the eccentric wheel contacts the lifting block on the left, the upper end of the lifting block on the right is fixedly connected to a lifting column, and the outer surface of the lifting column is provided with a sealing ring 1.

[0011] Preferably, the cooling assembly includes a cold water tank fixedly connected to the upper end of the second rotating shaft, four through grooves three are opened on the bottom side wall of the inner surface of the cold water tank, four connecting pipes are fixedly connected to the outer surface of the rotating block, and the outer surface of the lifting column is slidably connected to the inner surface of the through groove three at the corresponding position.

[0012] Preferably, the limit assembly includes a movable block 1 that is slidably connected to the inner surfaces of the four through slots 3, and the outer surfaces of the four movable blocks 1 are each provided with a sealing ring 2. A lower end of the movable block located at the lower side of the through slot 2 is magnetically connected to the upper end of the lifting column on the right side, and the upper ends of the four movable blocks 1 are fixedly connected to the limited round seats, and the lower ends of the four limited round seats are respectively fixedly connected to the four connecting pipes, and the inner surfaces of the four limited round seats are each provided with an adjusting seat, and a three-jaw chuck 1 is installed on the inner surface of the limited round seat, and an insulator insert body is provided on the inner surface of the three-jaw chuck 1, and an extrusion frame is fixedly connected to the bottom side wall of the inner surface of the limited round seat, and a sensor 1 is provided inside the three-jaw chuck 1.

[0013] Preferably, the heating test assembly includes a fixing frame fixedly connected to the upper end of the top plate, the upper end of the fixing frame is fixedly installed with motor 2, the output end of motor 2 is fixedly connected with a rotating seat, the left and right sides of the rotating seat are fixedly connected with connecting blocks, the lower ends of the two connecting blocks are rotatably fixedly connected with a fixing ring, the inner surface of the fixing ring has a ring array with a number of nozzles, the lower end of the rotating seat is installed with a three-jaw chuck 2, the lower end of the rotating seat is fixedly connected with a water bag, the upper end of the extrusion frame is in contact with the lower end of the water bag, the interior of the three-jaw chuck 2 is provided with sensor 2, the inner surface of the three-jaw chuck 2 is in contact with the outer surface of the upper side of the insulator insert body, and the output end surface of the motor 2 is installed with a torque sensor.

[0014] Preferably, a sliding groove is provided on the side of the two connecting blocks that are close to each other, and a spring is fixedly connected to the inner surface of the two sliding grooves. The upper ends of the two springs are fixedly connected to movable blocks 2, and the two movable blocks 2 are slidably connected to the two sliding grooves. The ends of the two movable blocks 2 that are close to each other are commonly fixedly connected to the left and right sides of the water bag, the right side of the water bag is fixedly connected to water pipe 1, the lower end of water pipe 1 is fixedly connected to a fixing ring, the left side of the water bag is fixedly connected to water pipe 2, the end of water pipe 2 away from the water bag is fixedly connected to a hot water tank, and the lower end of the hot water tank is fixedly connected to the top plate.

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

[0016] 1. The present invention realizes cyclic testing of four groups of insulator insert bodies through staggered coordination of the rotating component and the lifting component, and uses the cooling component and the heating test component to complete the process of cold water immersion, hot water spraying and fastening force testing, simulating the adhesive fastening force test in the outdoor alternating cold and hot environment, making the test results closer to the actual operating conditions, and verifying the ultimate bearing capacity of the adhesive layer under the dual effects of "environmental stress + mechanical load", avoiding the problem of traditional static testing being out of touch with the actual stress environment.

[0017] 2. The present invention makes each group of samples undergo a complete "cold water immersion - hot water shock - tightening force test" process. Through the cooperation of the rotating assembly and the lifting assembly, intermittent rotation and staggered lifting of the insulator insert body are achieved, ensuring that each group of inserts can be fully immersed and tested and the switching is orderly. The low-temperature immersion in the cold water tank and the rapid high-temperature spraying of the water bag cause the adhesive layer of the insulator insert body to alternately contract and expand, amplifying the stimulation of temperature changes on the adhesive layer. This is closer to the impact of sudden temperature changes such as sudden rain and direct sunlight in nature, and truly reflects the tightening state of the adhesive layer after "thermal expansion and contraction". It avoids test deviation caused by stress relaxation after temperature stabilization, and improves the authenticity of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the overall internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall internal structure of the present invention in another state;

[0021] Figure 4 It is a structural schematic diagram of the rotating assembly of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the lifting assembly of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the cooling assembly of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the limiting assembly of the present invention;

[0025] Figure 8 Schematic diagram of the internal structure of the cold water tank of the present invention;

[0026] Figure 9 It is a structural schematic diagram of the heating test assembly of the present invention;

[0027] Figure 10 It is a partial structural schematic diagram of the heating test assembly of the present invention.

[0028] In the figure: 1. Detection box; 11. Top plate; 12. Through slot 1; 13. Through slot 2; 2. Rotating assembly; 21. Fixed block; 22. Motor 1; 23. Rotating shaft 1; 231. Disc; 24. Swing arm; 25. Rotating shaft 2; 26. Special-shaped seat; 261. Arc groove; 27. Rotating block; 271. Electric valve; 28. Export pipe; 3. Cooling assembly; 31. Cold water tank; 311. Through slot 3; 32. Connecting pipe; 4. Lifting assembly; 41. Rotating rod; 42. Swing frame; 43. Rotating shaft; 431. Connecting frame; 44. Limiting rod; 45. Lifting block; 4 6. One-way shaft; 47. Eccentric wheel; 48. Lifting column; 5. Limiting assembly; 51. Movable block 1; 52. Limiting round seat; 53. Adjusting seat; 54. Three-jaw chuck 1; 55. Insulator insert body; 57. Extrusion frame; 6. Heating test assembly; 61. Fixed frame; 62. Motor 2; 63. Rotating seat; 64. Connecting block; 641. Sliding groove; 65. Fixed ring; 66. Nozzle; 67. Three-jaw chuck 2; 68. Water bag; 69. Spring; 610. Movable block 2; 611. Water pipe 1; 612. Water pipe 2; 613. Hot water tank; 7. Torque sensor. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] Example 1, as Figure 1-3 As shown, an insulator insert fastening force detection device includes a detection box 1, the upper end of the detection box 1 is fixedly connected to a top plate 11, the left side of the top plate 11 is provided with a through slot 12, the right side of the top plate 11 is provided with a through slot 2 13, a rotating component 2 is provided inside the detection box 1, a cooling component 3 is provided on the upper side of the rotating component 2, a lifting component 4 is provided on the lower side of the cooling component 3, four limit components 5 are provided inside the lifting component 4, the limit component 5 includes an insulator insert body 55, and a heating test component 6 is provided on the upper side of the detection box 1.

[0031] The first through groove 12 facilitates the insulator insert body 55 to be placed in the interior of the testing box 1 for immersion, while the second through groove 13 facilitates the insulator insert body 55 to be successively ejected for testing.

[0032] Therefore, this solution realizes cyclic testing of four groups of insulator insert bodies 55 through staggered coordination of the rotating component 2 and the lifting component 4, and uses the cooling component 3 and the heating test component 6 to complete the process of cold water immersion, hot water spraying and tightening force testing, simulating the adhesive tightening force test in the outdoor alternating hot and cold environment, making the test results closer to the actual operating conditions, verifying the ultimate bearing capacity of the adhesive layer of 55 under the dual effects of "environmental stress + mechanical load", and avoiding the problem of traditional static testing being out of touch with the actual stress environment.

[0033] Embodiment 2: Based on embodiment 1, this embodiment is to achieve the effect of testing the fastening force of insulator inserts in a simulated outdoor hot and cold alternating environment.

[0034] See Figure 4-6 The rotating assembly 2 includes a fixed block 21 fixedly connected to the left side of the detection box 1, a motor 22 is fixedly installed on the upper end of the fixed block 21, a rotating shaft 23 is fixedly connected to the output end of the motor 22, a disk 231 is fixedly connected to the right end of the rotating shaft 23, and a swing arm 24 is fixedly connected to the left end of the disk 231.

[0035] The bottom wall of the inner surface of the detection box 1 is rotatably connected to the rotating shaft 25, the outer surface of the rotating shaft 25 is fixedly connected to the special-shaped seat 26, the outer surface of the special-shaped seat 26 is provided with four arc-shaped grooves 261, the outer surface of the swing arm 24 is slidably connected to the arc-shaped groove 261, the top of the rotating shaft 25 is fixedly connected to the rotating block 27, the upper end of the rotating block 27 is installed with an electric valve 271, and the bottom end of the rotating shaft 25 is fixedly connected to the outlet pipe 28.

[0036] Specifically, the swing arm 24 is adapted to the arc groove 261 , and the swing arm 24 can complete contact and disengagement with one arc groove 261 every time it rotates one circle, thereby driving the special-shaped seat 26 and the rotating shaft 2 25 to rotate ninety degrees as a whole.

[0037] When the cold water inside the cooling assembly 3 needs to be replaced, the electric valve 271 can be opened to discharge the cold water, and the cold water is allowed to eventually pass through the interior of the second rotating shaft 25 and be discharged from the outlet pipe 28.

[0038] See Figure 4-5 The lifting assembly 4 includes a rotating rod 41 rotatably connected to the front side of the inner surface of the detection box 1, and the left and right sides of the rotating rod 41 are fixedly connected to the swing frame 42, the lower ends of the two swing frames 42 are slidably connected to the rotating shaft 43, and the lower ends of the two rotating shafts 43 are rotatably connected to the connecting frame 431. The left and right sides of the inner surface of the detection box 1 are fixedly connected to the limit rods 44, and the outer surfaces of the two limit rods 44 are slidably connected to the connecting frame 431. The rear ends of the two connecting frames 431 are fixedly connected to the lifting blocks 45.

[0039] Furthermore, the limiting rod 44 can limit the two connecting frames 431 so that the connecting frames 431 can be vertically lifted and lowered following the up and down swing of the swing frame 42. During this process, the rotating shaft 43 will slide at the lower end of the swing frame 42.

[0040] The outer surface of the rotating shaft 23 is rotatably connected to a one-way shaft 46, and the outer surface of the one-way shaft 46 is fixedly connected to an eccentric wheel 47. The outer surface of the eccentric wheel 47 contacts the left lifting block 45. The upper end of the right lifting block 45 is fixedly connected to a lifting column 48, and the outer surface of the lifting column 48 is provided with a sealing ring 1.

[0041] The eccentric wheel 47 rotates clockwise only when the motor 1 22 drives the rotating shaft 1 23 to rotate clockwise, and the one-way shaft 46 drives the eccentric wheel 47 to rotate clockwise, thereby driving the swing frame 42 to swing left and right. When the motor 1 22 drives the rotating shaft 1 23 to rotate counterclockwise, the one-way shaft 46 remains stationary, and synchronously, the eccentric wheel 47 also remains stationary, so that the entire lifting assembly 4 is in a stopped state. This stationary state refers to Figure 3 In this state, the rotating shaft 1 23 can drive the swing arm 24 to continuously contact the arc groove 261 on the surface of the special-shaped seat 26, thereby continuously driving the rotating shaft 2 25 and the cold water tank 31 to intermittently rotate ninety degrees, which is convenient for quickly loading the insulator insert body 55 in the initial state.

[0042] See Figure 2 、 Figure 3 、 Figure 6 and Figure 8The cooling assembly 3 includes a cold water tank 31 fixedly connected to the upper end of the rotating shaft 25. Four through grooves 311 are opened on the bottom side wall of the inner surface of the cold water tank 31. Four connecting pipes 32 are fixedly connected to the outer surface of the rotating block 27. The outer surface of the lifting column 48 is slidably connected to the inner surface of the through groove 311 at the corresponding position.

[0043] Furthermore, during the process of the lifting column 48 sliding up and down on the inner surface of the through groove three 311, the sealing ring 1 can form a dynamic seal by closely fitting with the inner wall of the through groove three 311, thereby effectively preventing water leakage in the water tank. The sealing ring 1 is made of rubber material, and can always maintain contact pressure with the inner wall of the through groove three 311 during the movement of the lifting column 48. Even if the lifting column 48 moves up and down and generates relative friction, the sealing ring 1 can compensate for the gap through its own deformation, maintain the integrity of the sealing surface, and continuously block the water flow channel, thereby preventing water in the cold water tank 31 from leaking due to the up and down movement of the lifting column 48, thereby ensuring the sealing of the cold water tank 31 under dynamic working conditions.

[0044] Furthermore, during use, first start the motor 22 to drive the rotating shaft 23 to rotate counterclockwise, and the rotating shaft 23 rotates counterclockwise to drive the disc 231 and the swing arm 24 to rotate. Each rotation will drive the rotating shaft 25 and the special-shaped seat 26 to rotate ninety degrees, thereby driving the cold water tank 31 to rotate ninety degrees as a whole, causing the position of the internal limit assembly 5 to shift, and each time a different limit assembly 5 will be located at the lower end of the through slot 12, thereby facilitating the installation of the insulator insert body 55 on the limit assembly 5 at the corresponding position.

[0045] After placement, cold water is poured into the cold water tank 31 to soak the insulator insert body 55 inside, ensuring that the glue joints of the insulator insert body 55 are completely soaked, so that the glue layer is evenly subjected to low-temperature stress, simulating the long-term stress state in a cold or humid environment, and then starting the motor 1 22 to drive the rotating shaft 1 23 to rotate clockwise, and then in the process of the swing arm 24 driving the rotating shaft 2 25 to rotate, the one-way shaft 46 and the eccentric wheel 47 are synchronously driven to rotate counterclockwise one circle. When the eccentric wheel 47 is rotating, its raised part contacts the lifting block 45 on the left, which presses the lifting block 45 down, thereby causing the connecting frame 431 and the rotating shaft 43 to drive the swing frame 42 to tilt to the left, thereby raising the lifting block 45 on the right, and finally causing the lifting column 48 to lift the limit assembly 5 at its corresponding position upward, pass through the through slot 2 13 and enter the detection area of ​​the heating test assembly 6.

[0046] It should be noted that the eccentric wheel 47 is divided into a working curved surface and a resting curved surface. Figure 2 The working surface is in contact with the left lifting block 45. Figure 3The resting curved surface is in contact with the left lifting block 45, and the working curved surface of the lifting block 45 is exactly opposite to the direction of the swing arm 24. When the swing arm 24 contacts the arc groove 261 and drives the special-shaped seat 26 to rotate ninety degrees, the eccentric wheel 47 contacts the lifting block 45 with the resting curved surface. In this state, the swing frame 42 is parallel and will not tilt up; and when the swing arm 24 disengages from the arc groove 261, the rotating shaft 25 stops rotating, and the working curved surface of the eccentric wheel 47 will contact the left lifting block 45, thereby driving the right end of the swing frame 42 to tilt up, so that the limit component 5 at this position is lifted to the detection area, and the rotation and lifting operations of the limit component 5 are staggered.

[0047] See Figure 6-8 The limiting assembly 5 also includes a movable block 51 that is slidably connected to the inner surface of the four through slots 311. The outer surfaces of the four movable blocks 51 are each provided with a sealing ring 2. The lower end of the movable block 51 located at the lower side of the through slot 2 13 is magnetically connected to the upper end of the right lifting column 48. The upper ends of the four movable blocks 51 are fixedly connected to the limiting round seat 52. The lower ends of the four limiting round seats 52 are respectively fixedly connected to the four connecting tubes 32. The inner surfaces of the four limiting round seats 52 are each provided with an adjusting seat 53. A three-jaw chuck 54 is installed on the inner surface of the limiting round seat 52. The outer surface of the lower side of the insulator insert body 55 contacts the inner surface of the three-jaw chuck 54. The bottom side wall of the inner surface of the limiting round seat 52 is fixedly connected with an extrusion frame 57. The interior of the three-jaw chuck 54 is provided with a sensor 1.

[0048] The sealing ring 2 on the surface of the movable block 1 51 is made of the same material as the sealing ring 1.

[0049] The above-mentioned sensor is a conventional technical field in the prior art. When the insulator insert body 55 is placed in the central positioning area of ​​the three-jaw chuck 54, the sensor 1 recognizes the object blocking signal or pressure change and transmits the trigger signal to the three-jaw chuck 54. The control system is usually a PLC or a small single-chip microcomputer. After receiving the signal, the control system drives the gear transmission mechanism inside the three-jaw chuck 54 to make the three jaws move radially and synchronously. This process relies on the inherent spiral groove and slider design of the chuck to ensure the accuracy of the jaw movement and the uniformity of the clamping force. Finally, under the closed-loop control of the position signal feedback from the sensor 1, the jaw contacts the surface of the insulator insert body 55 and applies the preset clamping force before automatically stopping.

[0050] When the limiting round seat 52 is located as a whole inside the cold water tank 31, it is immersed in cold water. The connection points of the four connecting pipes 32 and the limiting round seat 52 are all located at the lower end. Therefore, when the limiting round seat 52 contacts the cold water tank 31, the connecting pipe 32 is in a pressed state, and the water cannot be discharged from the connecting pipe 32. When the limiting round seat 52 is lifted by the lifting column 48, the connecting pipe 32 loses pressure and automatically drains outward through the connecting pipe 32, the rotating block 27, the rotating shaft 25 and the outlet pipe 28. Therefore, when the adjusting seat 53 contacts the top of the top plate 11, space has been made inside the movable block 1 51 to accommodate hot water, which is discharged in real time through the connecting pipe 32 to avoid the hot water from mixing with the cold water inside the cold water tank 31 and affecting the low-temperature test of the insulator insert body 55.

[0051] Furthermore, the magnetic force between the lifting column 48 and the movable block 1 51 is greater than the friction force between the sealing ring 1, the sealing ring 2 and the through groove 311. Therefore, when the lifting column 48 descends, the movable block 1 51 can be pulled to fit with the inner surface of the through groove 311 to avoid water leakage. The continued rotation of the cold water tank 31 will force the movable block 1 51 to separate from the lifting column 48.

[0052] Furthermore, when the swing frame 42 tilts to the left, the lifting column 48 on the right will be driven to rise synchronously, driving the movable block 1 51 at this position to rise to the detection area. When the insulator insert body 55 at this position is being detected, the motor 1 22 is in a stopped state. After the detection is completed, the motor 1 22 is started again to rotate clockwise, so that the lifting column 48 pulls the movable block 1 51 down, so that the movable block 1 51 fits with the inner surface of the through slot 3 311 at this position, and then rotates and shifts, thereby realizing the orderly switching of the four groups of insulator insert bodies 55 as a whole, so that each group of samples undergoes the processes of cold water immersion, lifting, hot water spraying, and detection in turn, forming a cyclic detection mode.

[0053] See Figure 3 、 Figure 8-10 The heating test assembly 6 includes a fixed frame 61 fixedly connected to the upper end of the top plate 11, and a motor 2 62 is fixedly installed on the upper end of the fixed frame 61. The output end of the motor 2 62 is fixedly connected to a rotating seat 63. The left and right sides of the rotating seat 63 are fixedly connected with connecting blocks 64. The lower ends of the two connecting blocks 64 are rotatably fixedly connected to a fixing ring 65. The inner surface of the fixing ring 65 has a ring array with several nozzles 66. The lower end of the rotating seat 63 is installed with a three-jaw chuck 2 67. The lower end of the rotating seat 63 is fixedly connected with a water bag 68. The upper end of the extrusion frame 57 contacts the lower end of the water bag 68. The interior of the three-jaw chuck 2 67 is provided with a sensor 2. The inner surface of the three-jaw chuck 2 67 contacts the outer surface of the upper side of the insulator insert body 55. The output end surface of the motor 2 62 is installed with a torque sensor 7.

[0054] The principle of the sensor 2 installed inside the three-jaw chuck 67 is the same as that of the sensor 1. When the lifting column 48 lifts the movable block 51, the insulator insert body 55 contacts the upper end of the three-jaw chuck 67. The three-jaw chuck 67 automatically clamps the metal insert at the upper end of the insulator insert body 55, facilitating subsequent tightening force testing.

[0055] Furthermore, the torque sensor 7 is a commonly used technical field in the prior art. When the motor 2 62 rotates, the torque sensor 7 measures the torque value applied to the upper end of the insulator insert body 55 in real time. The metal insert is fixed to the insulator by the glue layer. The glue layer will produce shear deformation during rotation - in the initial stage, the torque increases linearly with the angle and elastically deforms. When the torque reaches the ultimate strength of the glue layer, the torque value drops suddenly and the angle increases sharply. The peak torque recorded at this time is the failure threshold of the adhesive fastening force of the insulator insert body 55. By analyzing the torque-angle curve, the rigidity, toughness and interface bonding quality of the glue layer can be judged.

[0056] The two connecting blocks 64 are provided with sliding grooves 641 on the sides close to each other, and the inner surfaces of the two sliding grooves 641 are fixedly connected to springs 69. The upper ends of the two springs 69 are fixedly connected to movable blocks 2 610. The two movable blocks 2 610 are slidably connected to the two sliding grooves 641. The ends of the two movable blocks 2 610 close to each other are fixedly connected to the left and right sides of the water bag 68. The right side of the water bag 68 is fixedly connected to water pipe 1 611, and the lower end of water pipe 1 611 is fixedly connected to the fixing ring 65. The left side of the water bag 68 is fixedly connected to water pipe 2 612, and the end of water pipe 2 612 away from the water bag 68 is fixedly connected to the hot water tank 613, and the lower end of the hot water tank 613 is fixedly connected to the top plate 11.

[0057] Furthermore, an elastic mechanism is provided inside the limiting circular seat 52. When the adjusting seat 53 contacts the lower end of the top plate 11, the extrusion frame 57 will contact the water bag 68. Then, as the extrusion frame 57 continues to rise, the water bag 68 will be squeezed. Synchronously, the adjusting seat 53 will always be in contact with the top plate 11 and will be squeezed and moved to the inner surface of the limiting circular seat 52, thereby preventing hot water from entering the cold water tank 31 during spraying and affecting the low-temperature immersion of the insulator insert body 55.

[0058] The spring 69 increases the elasticity of the water bag 68. When the water bag 68 is squeezed, the squeezing frame 57 moves away, and the water bag 68 is quickly reset under the drive of the spring 69.

[0059] At the same time, one-way valves are installed at the connection between water pipe 1 611 and water pipe 2 612 and water bag 68. The one-way valve connected to water pipe 1 611 can only deliver water to the nozzle 66 and cannot enter water. The one-way valve connected to water pipe 2 612 can only deliver water to the water bag 68 and cannot discharge water outward.

[0060] Hot water is stored inside the hot water tank 613. When the water bag 68 expands, the internal air pressure decreases, and hot water is sucked out from the inside of the hot water tank 613 to fill the water bag 68.

[0061] Then, when the adjustment seat 53 contacts the lower end of the top plate 11, the extrusion frame 57 fits with the water bag 68. At this time, the extrusion frame 57 continues to rise under the drive of the lifting column 48. The extrusion frame 57 squeezes the water bag 68 to increase the internal pressure of the water bag 68. Hot water is transported from the water pipe 1 611 to the nozzle 66 and sprayed onto the insulator insert body 55. The high temperature is used to form an instantaneous thermal shock to the glue layer of the insulator insert body 55, forming a strong temperature difference with the previous cold water immersion, simulating the effect of temperature fluctuations in extreme weather on the bonding strength, thereby enhancing the severity of the environmental simulation. When the insulator insert body 55 rises to the highest point, , which will trigger the sensor 2 inside the three-jaw chuck 2 67, causing the three-jaw chuck 2 67 to clamp the workpiece on the upper end of the insulator insert body 55, and then start the motor 2 62 to drive it to twist. At this time, the adhesive layer of the insulator insert body 55 has just experienced a drastic temperature change and the internal stress has not yet been completely released. The test is carried out at this stage to simulate the scenario where the insulator is subjected to line load immediately after extreme weather, verify the ultimate bearing capacity of the adhesive layer under the dual effects of "environmental stress + mechanical load", and truly reflect the tightening state of the adhesive layer after "thermal expansion and contraction", ensuring that the test results have direct reference value for engineering applications.

[0062] Therefore, the present invention makes each group of samples undergo a complete "cold water immersion - hot water shock - tightening force test" process. Through the cooperation of the rotating component 2 and the lifting component 4, the intermittent rotation and staggered lifting of the insulator insert body 55 are achieved, ensuring that each group of inserts can be fully immersed and tested and the switching is orderly. The low-temperature immersion in the cold water tank 31 and the rapid high-temperature spraying of the water bag 68 are used to cause the adhesive layer of the insulator insert body 55 to contract and expand alternately, amplifying the stimulation of temperature changes on the adhesive layer, which is closer to the impact of sudden temperature changes such as sudden rain and direct sunlight in nature, and truly reflects the tightening state of the adhesive layer after "thermal expansion and contraction", avoiding test deviations caused by stress relaxation after temperature stabilization, and improving the authenticity of the test results.

[0063] It should be noted that the specific installation method, circuit connection method and control method of motor 1 22, electric valve 271, three-jaw chuck 1 54, three-jaw chuck 2 67, sensor 1, sensor 2, motor 2 62 and torque sensor 7 used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0064] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulator insert fastening force detection device, comprising a detection box (1), characterized in that: The upper end of the detection box (1) is fixedly connected to a top plate (11), a through slot 1 (12) is provided on the left side of the top plate (11), and a through slot 2 (13) is provided on the right side of the top plate (11). A rotating assembly (2) is provided inside the detection box (1), a cooling assembly (3) is provided on the upper side of the rotating assembly (2), a lifting assembly (4) is provided on the lower side of the cooling assembly (3), four limit assemblies (5) are provided inside the lifting assembly (4), and a heating test assembly (6) is provided on the upper side of the detection box (1).

2. The insulator insert fastening force detection device according to claim 1, characterized in that: The rotating assembly (2) comprises a fixed block (21) fixedly connected to the left side of the detection box (1); a motor (22) is fixedly mounted on the upper end of the fixed block (21); an output end of the motor (22) is fixedly connected to a rotating shaft (23); a right end of the rotating shaft (23) is fixedly connected to a disk (231); and a left end of the disk (231) is fixedly connected to a swing arm (24).

3. The insulator insert fastening force detection device according to claim 2, characterized in that: The bottom wall of the inner surface of the detection box (1) is rotatably connected to a second rotating shaft (25), the outer surface of the second rotating shaft (25) is fixedly connected to a special-shaped seat (26), the outer surface of the special-shaped seat (26) is provided with four arc-shaped grooves (261), the outer surface of the swing arm (24) is slidably connected to the arc-shaped grooves (261), the top end of the second rotating shaft (25) is fixedly connected to a rotating block (27), the upper end of the rotating block (27) is installed with an electric valve (271), and the bottom end of the second rotating shaft (25) is fixedly connected to a guide pipe (28).

4. The insulator insert fastening force detection device according to claim 3, characterized in that: The lifting assembly (4) includes a rotating rod (41) rotatably connected to the front side of the inner surface of the detection box (1), the left and right sides of the rotating rod (41) are fixedly connected to the swing frame (42), the lower ends of the two swing frames (42) are slidably connected to the rotating shaft (43), the lower ends of the two rotating shafts (43) are rotatably connected to the connecting frame (431), the left and right sides of the inner surface of the detection box (1) are fixedly connected to the limiting rod (44), the outer surfaces of the two limiting rods (44) are slidably connected to the connecting frame (431), and the rear ends of the two connecting frames (431) are fixedly connected to the lifting block (45).

5. The insulator insert fastening force detection device according to claim 4, characterized in that: The outer surface of the rotating shaft (23) is rotatably connected to a one-way shaft (46), the outer surface of the one-way shaft (46) is fixedly connected to an eccentric wheel (47), the outer surface of the eccentric wheel (47) contacts the lifting block (45) on the left side, and the upper end of the lifting block (45) on the right side is fixedly connected to a lifting column (48), and the outer surface of the lifting column (48) is provided with a sealing ring (1).

6. The insulator insert fastening force detection device according to claim 5, characterized in that: The cooling assembly (3) includes a cold water tank (31) fixedly connected to the upper end of the second rotating shaft (25), and the bottom side wall of the inner surface of the cold water tank (31) is provided with four through grooves (311). The outer surface of the rotating block (27) is fixedly connected with four connecting pipes (32), and the outer surface of the lifting column (48) is slidably connected to the inner surface of the through groove (311) at the corresponding position.

7. The insulator insert fastening force detection device according to claim 6, characterized in that: The limiting assembly (5) includes a movable block (51) that is slidably connected to the inner surface of the four through slots (311), and the outer surface of the four movable blocks (51) is provided with a sealing ring (2). The lower end of the movable block (51) located on the lower side of the through slot (13) is magnetically connected to the upper end of the lifting column (48) on the right side. The upper ends of the four movable blocks (51) are fixedly connected to the limiting round seat (52), and the lower ends of the four limiting round seats (52) are respectively The four limiting round seats (52) are fixedly connected to the four connecting tubes (32), and the inner surfaces of the four limiting round seats (52) are all provided with adjustment seats (53). The inner surface of the limiting round seat (52) is installed with a three-jaw chuck (54), and the inner surface of the three-jaw chuck (54) is provided with an insulator insert body (55). The bottom side wall of the inner surface of the limiting round seat (52) is fixedly connected with an extrusion frame (57), and the interior of the three-jaw chuck (54) is provided with a sensor.

8. The insulator insert fastening force detection device according to claim 7, characterized in that: The heating test assembly (6) includes a fixing frame (61) fixedly connected to the upper end of the top plate (11), a second motor (62) is fixedly installed on the upper end of the fixing frame (61), an output end of the second motor (62) is fixedly connected to a rotating seat (63), the left and right sides of the rotating seat (63) are fixedly connected to connecting blocks (64), the lower ends of the two connecting blocks (64) are rotatably fixedly connected to a fixing ring (65), and the inner surface of the fixing ring (65) has a plurality of spray nozzles in an annular array. The rotating seat (63) is provided with a three-jaw chuck (67) at the lower end thereof, a water bag (68) is fixedly connected to the lower end of the rotating seat (63), the upper end of the extrusion frame (57) contacts the lower end of the water bag (68), a sensor (2) is provided inside the three-jaw chuck (67), the inner surface of the three-jaw chuck (67) contacts the outer surface of the upper side of the insulator insert body (55), and a torque sensor (7) is installed on the output end surface of the motor (62).

9. The insulator insert fastening force detection device according to claim 8, characterized in that: The two connecting blocks (64) are provided with a sliding groove (641) on the side close to each other. The inner surfaces of the two sliding grooves (641) are fixedly connected with a spring (69). The upper ends of the two springs (69) are fixedly connected with a movable block 2 (610). The two movable blocks 2 (610) are slidably connected to the two sliding grooves (641). The ends of the two movable blocks 2 (610) close to each other are fixedly connected to the left and right sides of the water bag (68). The right side of the water bag (68) is fixedly connected with a water pipe 1 (611). The lower end of the water pipe 1 (611) is fixedly connected to the fixing ring (65). The left side of the water bag (68) is fixedly connected with a water pipe 2 (612). The end of the water pipe 2 (612) away from the water bag (68) is fixedly connected with a hot water tank (613). The lower end of the hot water tank (613) is fixedly connected to the top plate (11).

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