Bending resistance and tolerance test device for hollow porcelain insulator

Abstract

The invention relates to the technical field of insulator detection equipment, in particular to a hollow porcelain insulator bending resistance and tolerance test device which comprises a test bed serving as a carrier of the whole device, a clamp used for fixing an insulator is installed on the test bed, a pressing mechanism is arranged on the test bed, and the pressing mechanism comprises an outer frame. A storage box is fixedly connected to the end of the transmission rope, a supporting plate is fixedly connected to the transmission plate, a third motor is fixedly installed on the supporting plate, the output end of the third motor is fixedly connected with a cam used for pushing the pressing plate to move, an electric push rod is further fixedly installed on the transmission plate, and the free end of the electric push rod is fixedly connected with a transmission disc corresponding to the sliding strip. The test bench is provided with a detection mechanism used for detecting the bending degree of the insulator, the test bench is further provided with a transposition mechanism used for adjusting the position of the pressing plate, static testing and dynamic testing can be seamlessly switched through the arrangement of the pressing mechanism, the testing mode is changed through simple operation, and a user can conveniently use the test bench under different testing requirements.

Description

Technical Field

[0001] The invention relates to the technical field of insulator detection equipment, in particular to a hollow porcelain insulator bending resistance test device. Background Art

[0002] Hollow porcelain insulators are widely used in power systems, mainly responsible for supporting conductors and insulation, while preventing current leakage. However, in actual work, insulators are subject to external forces such as wind, ice and snow, and vibration, and are prone to bending and deformation. In severe cases, insulation failure may occur, thus affecting the safe operation of the power system. Therefore, it is crucial to ensure that hollow porcelain insulators have good bending tolerance. The existing bending tolerance test device will use static testing and dynamic testing. When the insulator is subjected to external force, it will bend itself, and then the staff will use instruments to detect the bending of the insulator. The hollow porcelain insulator is composed of large and small sheds, but the traditional detection device only contacts the outer wall of the large shed, which ignores the additional force on the small shed. When the insulator is subjected to force, the force direction and strength may be different; a single contact point cannot reflect the response of the small and large sheds under different force conditions, and cannot fully evaluate the overall bending performance of the insulator, which will lead to inaccurate measurement results. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a hollow porcelain insulator bending resistance test device, which has the advantage of accurately detecting the bending resistance of the insulator and solves the problem of inaccurate detection data.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: A hollow porcelain insulator bending resistance test device comprises a test bench as a carrier of the entire device, a clamp for fixing the insulator is installed on the test bench, a pressing mechanism is provided on the test bench, the pressing mechanism comprises an outer frame, a transmission plate is installed on the outer frame in a liftable manner, a slide bar is slidably connected to the transmission plate, a pressure plate is fixedly connected to the end of the slide bar, a transmission rope is fixedly connected to the slide bar, a storage box is fixedly connected to the end of the transmission rope, a connecting bar is fixedly connected to the slide bar, a support plate is fixedly connected to the transmission plate, a motor three is fixedly installed on the support plate, a cam for pushing the pressure plate to move is fixedly connected to the output end of the motor three, an electric push rod is also fixedly installed on the transmission plate, and a transmission disk corresponding to the slide bar is fixedly connected to the free end of the electric push rod, a detection mechanism for detecting the bending degree of the insulator is provided on the test bench, and a transposition mechanism for adjusting the position of the pressure plate is also provided on the test bench.

[0005] Preferably, a plurality of counterweights are placed in the storage box, and the end surface of the transmission plate is in contact with the pressure plate.

[0006] Preferably, the detection mechanism includes a bracket, a touch panel is installed on the bracket, a plurality of sliding rods are slidably connected to the bracket from top to bottom, the ends of the sliding rods are provided with sensing components that fit with the insulator umbrella skirts, one end of the sliding rod is fixedly connected to an L-shaped rod, and a touch head corresponding to the touch panel is installed on the L-shaped rod.

[0007] Preferably, a motor is provided on one side of the bracket, a transmission roller is fixedly connected to the output end of the motor, a limiting block one is fixedly connected to the top L-shaped rod, and limiting blocks two are fixedly connected to the remaining L-shaped rods. A transmission line is wound around the transmission roller, and the transmission line passes through multiple limiting blocks two in sequence through the through hole and is connected to limiting block one.

[0008] Preferably, the surface of the transmission line is coated with paint, and a camera for identifying the curvature of the transmission line is also installed on the bracket.

[0009] Preferably, the shifting mechanism includes a gear ring rotatably mounted on the test bench, a motor 1 is fixedly mounted on the test bench, an output end of the motor 1 is fixedly connected to a spur gear meshing with the gear ring for transmission, a load-bearing plate 1 and a load-bearing plate 2 are respectively fixedly connected on both sides of the gear ring, the outer frame is fixedly connected to the load-bearing plate 2, and the bracket is fixedly connected to the load-bearing plate 1.

[0010] Preferably, an electric telescopic rod 1 is fixedly mounted on the load-bearing plate 1, and a baffle is fixedly connected to the free end of the electric telescopic rod 1.

[0011] Preferably, the outer frame is fixedly installed with the second motor, the output end of the second motor is fixedly connected with a screw rod, the transmission plate is threadedly connected to the screw rod, and the transmission plate is slidably connected to the outer frame through a sliding groove.

[0012] Preferably, the test bench is equipped with a cabinet and a control panel for displaying test data.

[0013] Preferably, the load-bearing plate one and the load-bearing plate two are both located on the chassis, and the motor is installed on the load-bearing plate one.

[0014] By means of the above technical solution, the present invention provides a hollow porcelain insulator bending resistance test device, which has at least the following beneficial effects: 1. The hollow porcelain insulator bending resistance test device is provided with a pressing mechanism. The free end of the electric push rod is extended to move the transmission disc forward, and then the transmission disc contacts the slide bar to move the pressure plate, and then the pressure plate contacts the insulator to perform a compression test on it. The motor is started three times to drive the cam to rotate, and the cam rotates and contacts the connecting strip on the slide bar to push it to move outward, and then the pressure plate on the slide bar is driven to hit the insulator, so that the insulator can be dynamically tested, and static test and dynamic test can be seamlessly switched. The test mode can be changed through simple operation, which is convenient for users to use under different test requirements.

[0015] 2. The hollow porcelain insulator bending tolerance test device has a touch panel that can sense the movement of the touch head. Since multiple touch heads are provided, the displacement of each position of the insulator can be detected from multiple positions, and the bending tolerance of the insulator can be accurately detected. It can automatically adapt to different shapes and states of the insulator, reducing complex mechanical adjustments and improving the degree of automation of the equipment.

[0016] 3. For the hollow porcelain insulator bending tolerance test device, the more counterweights there are, the smaller the thrust on the pressure plate will be, and the smaller the impact force will be, when the power of motor three does not change. Conversely, the fewer counterweights there are, the greater the impact force will be. Users only need to simply adjust the number of counterweights without resetting the electric push rod or motor parameters, making the test process more intuitive and convenient and reducing the difficulty of operation.

[0017] 4. The hollow porcelain insulator bending tolerance test device detects the bending condition of the insulator by observing the bending condition of the transmission line. The slight bending change of the transmission line can be quickly identified through the change of position, ensuring that the tiny bending effect can be captured, thereby improving the sensitivity of detection.

[0018] 5. The hollow porcelain insulator bending tolerance test device can compare multiple images taken to obtain the maximum bending tolerance of the insulator. By comparing the images taken in multiple groups of tests, the bending conditions of the transmission line can be quantified. This method can not only intuitively display the changes, but also effectively provide data support, realize comparative analysis, and enhance the credibility of the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in the front view direction; Figure 2 It is a structural schematic diagram of the transposition mechanism of the present invention; Figure 3 It is a structural schematic diagram of the pressing mechanism of the present invention; Figure 4 It is a schematic diagram of the external connection structure of the slide bar of the present invention; Figure 5 It is a structural schematic diagram of the detection mechanism of the present invention; Figure 6 For the present invention Figure 5 A magnified view of point B; Figure 7 For the present invention Figure 5 A magnified image of point A; Figure 8 It is a structural schematic diagram of the sensing component of the present invention; Fig. 9 It is a schematic diagram of the external connection structure of the pipe body of the present invention; Fig.10 It is a schematic diagram of the contact between the airbag and the umbrella skirt of the present invention.

[0020] Reference numerals: 100. Test bench; 101. Fixture; 200, pressing mechanism; 201, outer frame; 202, motor 2; 203, screw; 204, transmission plate; 205, slide bar; 206, pressing plate; 207, connecting bar; 208, support plate; 209, motor 3; 210, cam; 211, transmission rope; 212, storage box; 213, counterweight; 214, electric push rod; 215, transmission plate; 300, detection mechanism; 301, bracket; 302, slide bar; 303, induction component; 3031, housing; 3032, partition; 3033, airbag; 3034, cavity; 3035, tube body; 3036, spring; 3037, piston; 3038, air pump; 3039, guide tube; 304, electric telescopic rod 2; 305, L-shaped rod; 306, touch head; 307, touch pad; 308, electric telescopic rod 1; 309, baffle; 310, limit block 1; 311, limit block 2; 312, transmission line; 313, transmission roller; 314, motor; 315, load-bearing bar; 316, coating; 400, shifting mechanism; 401, motor 1; 402, gear ring; 403, spur gear; 404, load-bearing plate 1; 405, load-bearing plate 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Hollow porcelain insulators are a key component in high-voltage power transmission and distribution systems because of their light weight, high strength and good electrical insulation properties. With the growth of power demand and the continuous upgrading of transmission lines, it is particularly important to ensure the safety and reliability of insulators. In actual operation, insulators may be subjected to a variety of external environmental factors such as wind, ice, and vibration, causing them to bend and deform, which directly affects the performance and service life of insulators. Therefore, conducting bending tolerance tests on hollow porcelain insulators to evaluate their bearing capacity and durability is an important measure to ensure the safe and stable operation of power systems.

[0023] Embodiment 1: A single testing method can often only test a specific condition. For example, static testing only focuses on the performance of the material under a fixed load, while dynamic testing only focuses on the response of the material under a dynamic load or impact. This makes it difficult to fully evaluate the overall performance of the insulator, resulting in the omission of important usage scenarios and performance indicators. In order to solve the above problems, combined with Figure 1-Figure 4 As shown, a hollow porcelain insulator bending resistance test device provided by the present invention includes a test bench 100 as a carrier of the entire device, a fixture 101 for fixing the insulator is installed on the test bench 100, and a pressing mechanism 200 for bending the insulator is provided on the test bench 100, which can realize dynamic testing and static testing, so that testers can comprehensively evaluate the performance of the insulator to meet the needs of different use occasions, and a detection mechanism 300 for detecting the bending degree of the insulator is provided on the test bench 100, and a transposition mechanism 400 for adjusting the position of the pressing plate 206 is also provided on the test bench 100, so as to facilitate testing of different positions of the insulator; The switching process between dynamic and static detection is complicated or time-consuming, and the efficiency of the entire test process will be affected, which means that extra time is needed to prepare or adjust between multiple tests, resulting in an extension of the test cycle. In order to solve the above problem, the pressing mechanism 200 includes an outer frame 201, a transmission plate 204 can be installed on the outer frame 201, a slide bar 205 is slidably connected to the transmission plate 204 through a slide groove, a pressing plate 206 is fixedly connected to the end of the slide bar 205, a transmission rope 211 is fixedly connected to the slide bar 205, and the transmission rope 211 is fixedly connected to the transmission plate 206. The end of the slider 205 extends through the through hole to the bottom of the transmission plate 204 and is fixedly connected to a storage box 212. The slider 205 is fixedly connected to a connecting strip 207. The transmission plate 204 is fixedly connected to a support plate 208. The support plate 208 is fixedly mounted with a motor 209. The output end of the motor 209 is fixedly connected to a cam 210 for pushing the pressure plate 206 to move. The transmission plate 204 is also fixedly mounted with an electric push rod 214. The free end of the electric push rod 214 is fixedly connected to a transmission disk 215 corresponding to the slider 205. The free end of the electric push rod 214 is fixedly connected to the transmission plate 215 corresponding to the slider 205. The end of the electric push rod 214 is extended to make the transmission disc 215 move forward, and then the transmission disc 215 contacts the slide bar 205 to move the pressure plate 206, and then the pressure plate 206 contacts the insulator to perform a compression test on it. After the static test is completed, the free end of the electric push rod 214 contracts to make the transmission disc 215 move back. The storage box 212 will pull the slide bar 205 back through the transmission rope 211 due to its own gravity, so that the slide bar 205 drives the pressure plate 206 to reset. Dynamic testing can also be performed. The motor 209 is started to drive the cam 210 to rotate. The cam 210 rotates and contacts the connecting strip 207 on the slide bar 205 to push it to move outward, and then drives the pressure plate 206 on the slide bar 205 to hit the insulator. After the thrust generated by the cam 210 is consumed, the storage box 212 drives the pressure plate 206 to reset again through the transmission rope 211. Repeat the above steps to perform a dynamic test on the insulator. Static test and dynamic test can be seamlessly switched. The test mode can be changed through simple operation, which is convenient for users to use under different test requirements.

[0024] Mechanical adjustment operations usually involve the coordinated work of multiple components, and the operation is complicated and requires manual control, which can easily lead to operational errors. If the operator is not familiar with the equipment, the risk of error will increase. In order to solve the above problems, a plurality of counterweights 213 are placed in the storage box 212, and the end face of the transmission plate 204 is in contact with the pressure plate 206. By placing different numbers of counterweights 213, the impact force of the pressure plate 206 can be adjusted during dynamic testing. The more counterweights 213 there are, the smaller the thrust generated on the pressure plate 206 when the power of the motor three 209 does not change, and the smaller the impact force generated. Conversely, the fewer counterweights 213 there are, the greater the impact force. The user only needs to simply adjust the number of counterweights 213 without resetting the electric push rod 214 or motor parameters, making the testing process more intuitive and convenient and reducing the difficulty of operation.

[0025] According to the embodiment, the storage box 212 realizes the reset of the pressure plate 206 through its own gravity and the transmission rope 211, which not only reduces the necessity of electric components but also improves the efficiency and reliability of the system.

[0026] Embodiment 2: When workers test the bending of insulators, the location and method of using the testing instrument may be affected by personal factors. The different experience and proficiency of different operators directly lead to inconsistency and errors in data reading. In order to solve the above problems, combined with Figure 5-Figure 7 As shown, on the basis of the first embodiment, the detection mechanism 300 includes a bracket 301, a touch panel 307 is installed on the bracket 301, a plurality of slide bars 302 are slidably connected to the bracket 301 from top to bottom, a sensing component 303 that fits the insulator shed is provided at the end of the slide bar 302, an L-shaped rod 305 is fixedly connected to one end of the slide bar 302, a touch head 306 corresponding to the touch panel 307 is installed on the L-shaped rod 305, when the insulator is subjected to external force, a certain bending will occur, and when the bending is small, it is difficult to distinguish by naked eyes. Since the sensing component 303 is provided on one side of the insulator, the sensing component 303 can be used to sense the insulator. The sensing component 303 contacts the insulator, and the insulator will bend to a certain extent during the test, and then the sensing component 303 will drive the sliding rod 302 to move, and the sliding rod 302 will drive the touch head 306 on the L-shaped rod 305 to move, and the touch panel 307 can feel the movement of the touch head 306. Since a plurality of touch heads 306 are provided, the displacement of each position of the insulator can be detected from multiple positions, and the bending tolerance of the insulator can be accurately detected. It can automatically adapt to different shapes and states of the insulator, reduce complex mechanical adjustments, and improve the degree of automation of the equipment.

[0027] The touch panel 307 can sense the movement of the touch head 306, so that data can be fed back in real time, which is convenient for the operator to quickly know the bending state of the insulator, thereby improving the test efficiency and response speed.

[0028] Some instruments may have limitations in detection accuracy or range, and may not be able to adapt to all types of insulators or different test conditions. As the design of insulators becomes more complicated, traditional instruments may not be able to provide sufficient detection capabilities. In order to solve the above problems, a motor 314 is provided on one side of the bracket 301. The output end of the motor 314 is fixedly connected to a transmission roller 313. The uppermost L-shaped rod 305 is fixedly connected to a limit block 1 310, and the remaining L-shaped rods 305 are fixedly connected to limit blocks 2 311. A transmission line 312 is wound around the transmission roller 313. The transmission line 312 passes through multiple limit blocks 2 311 in sequence through the through hole and is connected to the limit block 1 310. During the static test, when the insulator is subjected to external force, When bending occurs, the limit block 1 310 and the limit block 2 311 will also move with the L-shaped rod 305, causing the position of the transmission line 312 to change, and the motor 314 starts to drive the transmission roller 313 to rotate, and the transmission roller 313 rotates to reel in the transmission line 312, thereby tightening the transmission line 312. The bending condition of the insulator can be detected by observing the bending condition of the transmission line 312, and the slight bending change of the transmission line 312 can be quickly identified through the change in position, ensuring that the slight bending effect can be captured, thereby improving the sensitivity of detection.

[0029] Since the hollow porcelain insulator is composed of large sheds and small sheds staggered, the traditional detection device is directly in contact with the outer wall of the large shed, and the bending force is in multiple dimensions. Only by contacting the outer wall of the large shed, only one-dimensional force can be sensed, and the force on the small shed and the large shed cannot be accurately detected. In order to solve the above problem, a sensing component 303 is then provided. The sensing component 303 includes a tube body 3035 slidably connected to the slide rod 302, an arc-shaped shell 3031 is sleeved on the tube body 3035, a partition 3032 is fixedly connected to the middle of the tube body 3035, and the end surface of the partition 3032 is divided into The airbag 3033 is fixedly connected between the upper and lower sides of the housing 3031, and a cavity 3034 is formed between the airbag 3033, the partition 3032 and the housing 3031, so that the airbag 3033 is in a horizontal W shape. A piston 3037 is slidably connected in the tube body 3035, and a spring 3036 is fixedly connected between the piston 3037 and the inner wall of the tube body 3035. The end of the slide rod 302 is connected to the piston 3037. An air pump 3038 for injecting gas into the cavity 3034 is fixedly installed on the bracket 301. The output end of the air pump 3038 is fixedly connected to a guide tube 3039, and the guide tube 3039 passes through the tube. The channel is connected to the tube body 3035, and the bracket 301 is also equipped with an electric telescopic rod 2 304. A weight-bearing strip 315 connected to the free end of the electric telescopic rod 2 304 is fixedly connected between the multiple tube bodies 3035. First, the air pump 3038 injects a certain amount of gas into the cavity 3034 in the airbag 3033 through the pipeline to expand it to a certain extent. The free end of the electric telescopic rod 2 304 is extended to drive the weight-bearing strip 315 to move, and then the tube body 3035 moves with the weight-bearing strip 315, so that the airbag 3033 on the tube body 3035 is inserted into the large umbrella skirt and the small umbrella skirt, and then the air pump 3038 Continue to inject gas into the cavity 3034, so that the airbag 3033 fits with the outer wall of the large shed and the small shed, then stop injecting gas, and then perform pressure test on the insulator. The insulator is subjected to external force, which will generate force on the airbag 3033 from multiple dimensions to squeeze it, and then the gas will generate thrust on the piston 3037 to move it, and the 302 slide bar moves with the piston 3037, and then the touch head 306 is used to display it on the touch panel 307, so that the force of the insulator in multiple dimensions can be monitored, avoiding the problem that the traditional detection method only contacts the large shed. The external force on the small shed can be more comprehensively sensed.

[0030] Traditional methods of data recording and analysis often rely on manual signal processing, which is inefficient and prone to errors. Especially when faced with a large number of samples and data, it is impossible to perform fast and accurate analysis. The surface of the transmission line 312 is provided with a coating 316, and the bracket 301 is also equipped with a camera for identifying the curvature of the transmission line 312. The camera photographs the transmission line 312. When multiple groups of tests are performed, the multiple images taken can be compared to obtain the maximum bending tolerance of the insulator. By comparing the images taken in multiple groups of tests, the bending condition of the transmission line 312 can be quantified, and a computer is used for analysis and calculation. This method can not only intuitively display the changes, but also effectively provide data support, realize comparative analysis, and enhance the credibility of the results.

[0031] According to the embodiments, it is possible to respond promptly to small displacement changes, so that the detection has high sensitivity and can capture bends that are difficult to see with the naked eye.

[0032] Embodiment three: Insulators are subjected to forces of different directions and magnitudes during use. Testing different positions can help us understand the stress distribution and find local weaknesses or defects in time to ensure that the insulator's carrying capacity meets the standards. In order to solve the above problems, combined with Figure 2 and Figure 5 As shown, on the basis of the second embodiment, the transposition mechanism 400 includes a gear ring 402 rotatably mounted on the test bench 100, a motor 401 is fixedly mounted on the test bench 100, an output end of the motor 401 is fixedly connected to a spur gear 403 meshing with the gear ring 402, a load-bearing plate 1 404 and a load-bearing plate 2 405 are respectively fixedly connected on both sides of the gear ring 402, an outer frame 201 is fixedly connected to the load-bearing plate 2 405, a bracket 301 is fixedly connected to the load-bearing plate 1 404, the motor 1 401 is started to drive the spur gear 403 to rotate, the rotation of the spur gear 403 drives the gear ring to rotate, the load-bearing plate 1 404 and the load-bearing plate 2 405 rotate with the gear ring, so that the bending resistance test can be performed on different positions of the insulator.

[0033] Specifically, an electric telescopic rod 308 is fixedly mounted on the load-bearing plate 404 , and a baffle 309 is fixedly connected to the free end of the electric telescopic rod 308 .

[0034] According to the embodiment, it can be known that the load-bearing plate can be driven to rotate quickly, making the entire detection process more efficient and quick, and greatly improving the test speed.

[0035] Embodiment 4: Insulators experience cyclic loads during long-term use, which may cause material fatigue or wear. Testing at different locations can help identify early signs of fatigue damage and avoid potential failure risks. In order to solve the above problems, combined with Figure 1 and Figure 2As shown, on the basis of the third embodiment, a second motor 202 is fixedly installed in the outer frame 201, a screw 203 is fixedly connected to the output end of the second motor 202, a transmission plate 204 is threadedly connected to the screw 203, and the transmission plate 204 is slidably connected to the outer frame 201 through a slide groove. The second motor 202 is started to drive the screw 203 to rotate, and the rotation of the screw 203 can drive the transmission plate 204 to rise and fall, so that the bending resistance test can be performed on different positions of the insulator.

[0036] Specifically, the test bench 100 is equipped with a chassis and a control panel for displaying test data, so as to facilitate control of the equipment.

[0037] Furthermore, the load-bearing plate 1 404 and the load-bearing plate 2 405 are both located on the chassis, and the motor 314 is installed on the load-bearing plate 1 404 .

[0038] It can be known from the above embodiments that: first, the insulator is placed on the test bench 100, and then the clamp 101 fixes the bottom of the insulator, and then the dynamic and static bending resistance test is performed on the insulator according to actual needs, the free end of the electric push rod 214 is extended to make the transmission disk 215 move forward, and then the transmission disk 215 contacts the slide bar 205 to move the pressure plate 206, and then the pressure plate 206 contacts the insulator to apply pressure to it. When the insulator is subjected to external force, it will produce a certain bending. When the bending is small, it is difficult to distinguish with the naked eye. Since the insulator is provided with a sensing component 303 on one side of the insulator, the sensing component 303 contacts the insulator, and the insulator will produce a certain bending during the test, and then the sensing component 303 drives the slide bar 302 to move, and the slide bar 302 drives the touch head 306 on the L-shaped rod 305 to move. The touch panel 307 can feel the movement of the touch head 306. Since a plurality of touch heads 306 are provided, the displacement of each position of the insulator can be detected from a plurality of positions, and the bending resistance of the insulator can be accurately detected. Then, a dynamic test is performed, and the motor 3 209 starts to drive the cam 210 to rotate. The cam 210 rotates and contacts the connecting bar 207 on the slide bar 205 to push it to move outward, and then drives the pressure plate 206 on the slide bar 205 to hit the insulator. After the thrust generated by the cam 210 is consumed, the storage box 212 drives the pressure plate 206 to reset again through the transmission rope 211. The above steps are repeated to perform a dynamic test on the insulator. Finally, the touch panel 307 transmits the data to the terminal, and the staff analyzes the data to obtain the bending resistance of the insulator.

[0039] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hollow porcelain insulator bending resistance test device, comprising a test bench (100) as a carrier of the entire device, a clamp (101) for fixing the insulator installed on the test bench (100), characterized in that: The test bench (100) is provided with a pressing mechanism (200); The pressing mechanism (200) comprises an outer frame (201), a transmission plate (204) is mounted on the outer frame (201) in a liftable manner, a slide bar (205) is slidably connected to the transmission plate (204), a pressing plate (206) is fixedly connected to the end of the slide bar (205), a transmission rope (211) is fixedly connected to the slide bar (205), a storage box (212) is fixedly connected to the end of the transmission rope (211), a connecting strip (207) is fixedly connected to the slide bar (205), a support plate (208) is fixedly connected to the transmission plate (204), a motor three (209) is fixedly mounted on the support plate (208), a cam (210) for pushing the pressing plate (206) to move is fixedly connected to the output end of the motor three (209), and an electric push rod (214) is also fixedly mounted on the transmission plate (204), and a free end of the electric push rod (214) is fixedly connected to a transmission disk (215) corresponding to the slide bar (205); The test bench (100) is provided with a detection mechanism (300) for detecting the bending degree of the insulator; The detection mechanism (300) comprises a bracket (301), on which a touch panel (307) and a touch head (306) corresponding thereto are mounted, and a sensing component (303) fitted with an insulator shed is also provided; The test bench (100) is also provided with a position change mechanism (400) for adjusting the position of the pressing plate (206); The shifting mechanism (400) comprises a gear ring (402) rotatably mounted on the test bench (100), a first load-bearing plate (404) and a second load-bearing plate (405) being fixedly connected to two sides of the gear ring (402), and an outer frame (201) and a bracket (301) being fixedly connected to the second load-bearing plate (405) and the first load-bearing plate (404) respectively.

2. The hollow porcelain insulator bending resistance test device according to claim 1, characterized in that: A plurality of counterweights (213) are placed in the storage box (212), and the end surface of the transmission plate (204) is in contact with the pressure plate (206).

3. The hollow porcelain insulator bending resistance test device according to claim 1, characterized in that: The bracket (301) is slidably connected to a plurality of slide bars (302) from top to bottom, the sensing component (303) is arranged at the end of the slide bar (302), one end of the slide bar (302) is fixedly connected to an L-shaped bar (305), and the touch head (306) is mounted on the L-shaped bar (305).

4. The hollow porcelain insulator bending resistance test device according to claim 3 is characterized in that: A motor (314) is provided on one side of the bracket (301); a transmission roller (313) is fixedly connected to the output end of the motor (314); a first limit block (310) is fixedly connected to the uppermost L-shaped rod (305); and second limit blocks (311) are fixedly connected to the remaining L-shaped rods (305); a transmission line (312) is wound around the transmission roller (313); the transmission line (312) passes through a plurality of second limit blocks (311) in sequence through a through hole and is connected to the first limit block (310); a coating (316) is provided on the surface of the transmission line (312); and a camera for identifying the curvature of the transmission line (312) is also installed on the bracket (301).

5. The hollow porcelain insulator bending resistance test device according to claim 4, characterized in that: The sensing component (303) comprises a tube body (3035) slidably connected to the slide rod (302); an arc-shaped shell (3031) is mounted on the tube body (3035); a partition (3032) is fixedly connected to the middle of the tube body (3035); air bags (3033) are fixedly connected between the end faces of the partition (3032) and the upper and lower sides of the shell (3031); a cavity (3034) is formed between the air bag (3033), the partition (3032) and the shell (3031); a piston (3037) is slidably connected inside the tube body (3035); the piston (3037) and the tube body (3035) are connected to each other. A spring (3036) is fixedly connected between the inner wall of the housing (3035), the end of the slide rod (302) is connected to the piston (3037), an air pump (3038) for injecting gas into the cavity (3034) is fixedly installed on the bracket (301), a guide tube (3039) is fixedly connected to the output end of the air pump (3038), and the guide tube (3039) is connected to the tube body (3035) through a pipeline. The bracket (301) is also equipped with an electric telescopic rod 2 (304), and a load-bearing bar (315) connected to the free end of the electric telescopic rod 2 (304) is fixedly connected between the plurality of tube bodies (3035).

6. The hollow porcelain insulator bending resistance test device according to claim 3, characterized in that: The test bench (100) is fixedly mounted with a motor 1 (401), and an output end of the motor 1 (401) is fixedly connected with a spur gear (403) meshing with a gear ring (402).

7. The hollow porcelain insulator bending resistance test device according to claim 6, characterized in that: An electric telescopic rod (308) is fixedly mounted on the load-bearing plate (404), and a baffle (309) is fixedly connected to the free end of the electric telescopic rod (308).

8. The hollow porcelain insulator bending resistance test device according to claim 2, characterized in that: The outer frame (201) is fixedly provided with a second motor (202), the output end of the second motor (202) is fixedly connected with a screw rod (203), a transmission plate (204) is threadedly connected to the screw rod (203), and the transmission plate (204) is slidably connected to the outer frame (201) via a sliding groove.

9. The hollow porcelain insulator bending resistance test device according to claim 1, characterized in that: The test bench (100) is equipped with a cabinet and a control panel for displaying detection data.

10. The hollow porcelain insulator bending resistance test device according to claim 6, characterized in that: The load-bearing plate 1 (404) and the load-bearing plate 2 (405) are both located on the chassis, and the motor (314) is mounted on the load-bearing plate 1 (404).

Images