648 results about "Composite insulators" patented technology

The invention relates to the technical field of artificial intelligence, and discloses an AI-based composite insulator internal defect ultrasonic detection method, which comprises a multi-mode ultrasonic probe array module, a signal preprocessing module, an AI defect analysis module, a dynamic parameter optimization module, an edge calculation module and a visual report module, the method comprises the following steps: acquiring a full-dimensional signal through a multi-modal ultrasonic probe array, and inputting the full-dimensional signal into a deep space-time convolutional neural network for defect recognition after adaptive noise reduction and feature fusion; the detection precision is improved by combining dynamic waveform matching and multi-physics coupling analysis; model lightweight and real-time processing are realized by adopting transfer learning and edge calculation. The system integrates the functions of parameter adaptive optimization, three-dimensional visualization and Internet of Things cooperation, solves the problems of low efficiency and high false detection rate of a traditional detection method, and improves the intelligent level and engineering applicability of composite insulator defect detection.

The invention provides a joint denoising method and system based on multi-source noise suppression and sparse representation, and belongs to the technical field of noise suppression in ultrasonic detection of power equipment, and the method comprises the steps: synchronously collecting an ultrasonic echo signal, a vibration signal and an electromagnetic signal of a composite insulator; decomposing the ultrasonic echo signal into a plurality of modal components and undecomposed signal margins; extracting a dominant frequency component in the vibration signal, and identifying a resonance noise feature overlapped with the frequency band of the ultrasonic signal; detecting a pulse interference event in the electromagnetic signal, marking occurrence time and a frequency range, and generating a pulse event feature; performing frequency band suppression and time domain threshold processing on the modal component according to the resonance noise characteristics and the pulse event characteristics; performing sparse representation coding on the processed modal components, executing multiple rounds of iterative screening and orthogonalization processing, and screening an atom set matched with defect echoes; and reconstructing the de-noised ultrasonic signal by using the screened atom set, and combining the de-noised ultrasonic signal with the undecomposed signal margin to output a final result.

The invention relates to the technical field of composite insulator detection, in particular to an autonomous recognition method and system for typical defects of an ultrahigh-voltage line composite insulator, and the method comprises the steps: collecting an inspection image of the ultrahigh-voltage line composite insulator; calculating a temperature rise characteristic coefficient by using the color characteristics in the visible light image and the infrared image and the relationship between the color characteristics and the environment humidity; calculating a defect identification coefficient in combination with the spatial characteristics of the temperature rise phenomenon of the composite insulator; and finally, detecting and identifying typical defects of the composite insulator by utilizing the defect identification coefficient. The invention aims to improve the recognition quality of the typical defects of the composite insulator of the ultrahigh-voltage line.

The invention discloses a composite insulator defect detection method and system based on a multi-source signal and VMD decomposition, and the method is characterized in that the method belongs to the technical field of power system and equipment monitoring, and comprises the steps: synchronously collecting an ultrasonic echo signal, a mechanical vibration signal and an infrared thermal image signal of a composite insulator, and carrying out the timestamp alignment; performing CEEMDAN denoising and VMD decomposition on the ultrasonic echo signal in sequence to extract time-frequency domain features, and generating an ultrasonic feature vector; performing frequency domain transformation on the mechanical vibration signal to extract fundamental frequency and harmonic characteristics, and generating a vibration characteristic vector; performing surface temperature abnormal feature extraction on the infrared thermal image signal to generate an infrared auxiliary feature vector; the ultrasonic feature vector, the vibration feature vector and the infrared auxiliary feature vector are spliced into a fusion feature vector, and after dynamic weight distribution, the fusion feature vector is input into a multi-layer perceptron model for defect classification; and analyzing and positioning the internal defect position of the composite insulator by combining the ultrasonic signal propagation path time delay and the vibration mode, and generating a three-dimensional visual report.

The invention relates to the field of data processing, in particular to a composite insulator vulcanization uniformity detection method and device. The method comprises the following steps: acquiring an NMR spectrogram of a vulcanized insulator; performing first-layer decomposition processing on the NMR spectrogram by using a wavelet filtering algorithm to obtain a detail coefficient; a noise detail coefficient and a signal detail coefficient in the approximation coefficient are distinguished; performing second-layer decomposition processing on the approximation coefficient to obtain a detail coefficient; calculating the signal purity; in response to the fact that the signal purity is smaller than a preset purity threshold value, noise detail coefficients in the detail coefficients obtained through second-layer decomposition processing are screened out; continuing decomposition and calculating the signal purity, and stopping decomposition when the signal purity is not less than a preset purity threshold value; after the noise detail coefficient is corrected and adjusted, a denoised NMR spectrogram is reconstructed; therefore, vulcanization uniformity detection is realized. Therefore, the accuracy of vulcanization uniformity detection is improved by improving the accuracy of denoising.

The invention provides a composite insulator internal defect identification method and system, and the method comprises the steps: collecting an ultrasonic detection signal in a detection region selected on the outer surface of a composite insulator through an ultrasonic probe, and constructing a detection signal sample set; preprocessing the signals in the detection signal sample set by adopting a wavelet transform denoising algorithm to obtain preprocessed signals; carrying out empirical mode decomposition on the preprocessed signal, extracting characteristic parameters in the signal, and constructing a characteristic data set after carrying out dimension reduction processing on the characteristic parameters; and analyzing the feature data set by using a random forest algorithm to obtain an identification result of the internal defect of the composite insulator. Therefore, the problems that an existing manual defect identification method is high in subjectivity, more in misjudgment and the like are solved, a guiding function can be provided for factory detection, defect prevention and batch replacement of the composite insulator by means of a defect identification result, the defect identification precision is high, the anti-interference capacity is high, and automatic nondestructive detection on the interior of the composite insulator is achieved.

The invention discloses a global optimization design method and device for a glue injection opening of a composite insulator umbrella skirt sheath injection molding mold, electronic equipment and a storage medium, and belongs to the technical field of mold optimization design. Establishing a composite insulator umbrella skirt sheath injection molding mold physical model; determining the number of glue injection ports; the position of the glue injection port is parameterized, and the value range of the position parameters of the glue injection port is determined; sampling is carried out within the value range of the glue injection port position parameters; determining boundary conditions of a glue injection process, and establishing a sample library; establishing a mapping model of glue injection port position parameters and glue injection result parameters, and evaluating model precision; the position of a glue injection opening is optimized; simulation calculation is conducted on the model containing the glue injection pipeline, pipeline arrangement is adjusted according to the time when the glue in the pipeline reaches the glue injection opening, and it is guaranteed that the time when the glue reaches the glue injection opening is consistent. According to the method, the number of numerical simulation times can be greatly reduced, then the optimal design process of the glue injection opening position is remarkably accelerated, the design period is shortened, and the design cost is saved.

The invention discloses a method and system for determining the surface aging degree of silicone rubber, and belongs to the technical field of insulator performance evaluation. The method comprises the following steps: acquiring Fourier infrared spectrum data of silicone rubber surface composite insulators at different aging levels; training a target neural network model according to the Fourier infrared spectrum data to generate an analysis model; for the target silicone rubber surface composite insulator, obtaining target Fourier infrared spectrum data; and determining the aging degree of the target silicone rubber surface based on the analysis model according to the target Fourier infrared spectrum data. According to the invention, the efficiency of data analysis is effectively improved, the aging degree of the silicone rubber surface can be accurately determined, and the deviation caused by human factors is reduced.

The invention discloses an infrared image composite insulator heating defect identification method and system under a complex background. The method comprises the following steps: S1, obtaining a composite insulator infrared image; s2, performing image segmentation on the infrared image of the composite insulator to obtain a composite insulator rod core area mask; s3, performing temperature decoding on the infrared image source data of the composite insulator to obtain a temperature data matrix corresponding to each pixel; s4, extracting corresponding temperature data from the temperature data matrix based on the composite insulator rod core area mask to obtain a rod core mask matrix with temperature; and S5, carrying out temperature rise difference analysis on the rod core based on the rod core mask matrix, and carrying out heating abnormity judgment and temperature rise defect range determination based on the temperature rise difference analysis. According to the scheme, the reference value is determined through the mean value by utilizing the characteristics that the temperature distribution of the rod core is relatively uniform under the normal condition and the temperature distribution is not uniform under the abnormal condition, so that the influence of the environment on temperature rise analysis can be avoided, the influence of individual abnormal data can be overcome, and the judgment precision is ensured.

The utility model belongs to the technical field of insulator production equipment, and particularly relates to a deburring device for composite insulator production, which comprises a workbench, a cutting mechanism and a clamping mechanism, the cutting mechanism and the clamping mechanism are both movably installed on the workbench. The cutting mechanism comprises a base, a mounting column and a cutter; a mounting column is arranged on the base, and a cutter is arranged on the mounting column; the clamping mechanism comprises a sliding seat, a rotating table and a pressing piece; the rotating table and the pressing piece are both installed on the sliding seat and synchronously move along with the sliding seat, and the rotating table is connected with the rotating motor and is driven by the rotating motor to freely rotate; the number of the rotating tables is multiple, and the insulators are rotatably fixed in the clamping mechanism through cooperation of the rotating tables and the pressing pieces. The deburring device for the composite insulator, provided by the utility model, can be used for carrying out deburring treatment on a plurality of umbrella skirts on a composite insulator product at the same time, so that the working efficiency of deburring is improved.

The invention discloses a composite insulator for an overhead line, and belongs to the field of composite insulators, and the composite insulator comprises a first main umbrella skirt, the outer surface of the lower end of the first main umbrella skirt is fixedly connected with a first auxiliary umbrella skirt, the outer side of the first main umbrella skirt is provided with a scraping assembly, and the scraping assembly comprises a traction part and a movable part. The traction part comprises an insulation sleeve fixedly connected with the outer surface of the first main umbrella skirt, the outer surface of the insulation sleeve is fixedly connected with a supporting plate, and one end, away from the insulation sleeve, of the supporting plate is fixedly connected with a guide seat. By arranging the wind cup, the partition plate, the elastic rope and other assemblies, dirt attached to the surface of the wind cup can be shaken off to a certain degree through appearance changes of the surface of the wind cup, and therefore residual dirt on the surface of the wind cup can be effectively reduced, and the influence of the dirt on the weight of the wind cup is reduced; therefore, the moving flexibility of the wind cup can be guaranteed to a certain extent, and the cleaning effect of the surface of the first main umbrella skirt can be further improved.

The invention relates to a lightning protection composite insulator insulation cooperation detection and structure optimization method based on digital twinning. The method comprises the following steps: obtaining a structure parameter, a real-time environment parameter and an operation electrical parameter of a lightning protection composite insulator to be detected; constructing a digital twinborn simulation field domain model; establishing a preliminary digital twinborn simulation platform; obtaining an updated preliminary digital twinborn simulation platform; establishing an insulation cooperation equivalent model to obtain an optimized design scheme; and carrying out real-time monitoring and early warning on the insulation cooperation condition of the lightning protection composite insulator according to the insulation cooperation equivalent model. According to the invention, the insulation state of the insulator and the lightning arrester can be monitored in real time, real-time tracking of the insulation performance is realized, and once the insulation performance is abnormal, early warning can be immediately given out to remind operation and maintenance personnel to take measures in time, so that equipment faults or safety accidents caused by insulation failure are effectively avoided; performance bottlenecks and potential problems of the equipment can be found in time, and targeted maintenance suggestions are provided for operation and maintenance personnel.

The invention discloses a power transmission line anti-galloping phase-to-phase spacing device, which belongs to the technical field of power transmission lines, and is characterized in that two connecting plates, two connectors, two cross universal joints and two rod type composite insulators are arranged between two adjacent six-split damping spacers; each connecting plate is connected with a cross universal joint through a connector, and the cross universal joints are further connected with the ends of the rod type composite insulators. A hydraulic shock absorber is arranged in the middle of the two rod type composite insulators; a damping ball is arranged in the center of a triangle formed by the rod type composite insulators; an outer viscous damper, a first connecting rod and a second connecting rod are arranged between the hydraulic shock absorber and the damping ball; the first connecting rod and the second connecting rod are connected to the two sides of the outer viscous damper respectively, the damping ball is connected with the first connecting rod, and the hydraulic shock absorber is connected with the second connecting rod through the connecting ferrule. The problems that in the prior art, under the long-time line use condition, wires are damaged, the safety of a power transmission line is affected, and cost is high are solved.

The invention discloses an edge end composite insulator heating defect judgment system, device and method. The method comprises the following steps: receiving an infrared picture heating detection request from a handle of the unmanned aerial vehicle through an infrared image acquisition module; the model training conversion module is used for training and converting a composite insulator image detection segmentation model; the composite insulator detection module is used for automatically identifying and positioning a target of a composite insulator; the composite insulator segmentation module extracts a complete shape contour of the composite insulator; the composite insulator center line extraction module is used for extracting the center line of a composite insulator core rod; a composite insulator center line temperature fitting extraction module extracts a corresponding temperature value; and the composite insulator heating defect detection module judges the heating condition of the corresponding composite insulator. The method has the beneficial effects that the heating defect identification of the unmanned aerial vehicle infrared picture of the power transmission line at the edge end of the inspection site is realized, and the intelligent and automatic level of the heating defect detection of the composite insulator of the power transmission line is improved.

The invention relates to the technical field of insulators, and discloses an extra-high voltage icing flashover prevention composite insulator which comprises a core rod, a first umbrella skirt, a second umbrella skirt, a third umbrella skirt and connecting fittings, the first umbrella skirt, the second umbrella skirt and the third umbrella skirt are distributed at intervals in the axial direction of the core rod, and the connecting fittings are arranged at the two ends of the core rod; the radial size of the first umbrella skirt is larger than that of the second umbrella skirt, the radial size of the second umbrella skirt is larger than that of the third umbrella skirt, one first umbrella skirt, at least one second umbrella skirt and at least one third umbrella skirt form an umbrella skirt group, and the first umbrella skirt is located at the upper part of the umbrella skirt group; the first umbrella skirt is provided with a bulged surface with a high middle and a low periphery, the bulged surface is convexly provided with a plurality of diversion ribs, each diversion rib is provided with a first end and a second end, and the diversion ribs are arranged obliquely to the radial direction of the first umbrella skirt; the projections of the plurality of diversion ribs of two adjacent first umbrella skirts in the radial cross section are distributed at intervals in the circumferential direction. Water can be quickly drained, icing is reduced, ice ridge bridging is inhibited, and the device is suitable for extra-high voltage re-icing scenes.

The invention discloses a composite insulator fault detection method based on YOLOV8, and relates to the technical field of graphic data reading, and the method comprises the steps: synchronously collecting an infrared image and a visible light image of a composite insulator, taking the infrared image and the visible light image as dual-mode images, carrying out the cooperative preprocessing, obtaining a registered dual-mode image, and generating a significance hot area graph; constructing an improved target detection network, and inputting the registered bimodal image into the improved target detection network to obtain a detection result of the composite insulator and a pixel-level contour of a fault area; obtaining a final overheating grade based on a physical mechanism diagnosis model, and calculating an intensity loss rate estimated value of a current fault based on a pixel-level contour of a fault area; and generating and outputting a structured diagnosis report based on the fault type, the absolute temperature data matrix, the final overheating level, the strength loss rate estimated value and the fault area pixel level contour. According to the invention, the technical problem of poor detection effect caused by incomplete composite insulator fault detection in the prior art is solved.

The invention discloses a forming method of a high-bending-strength composite insulator winding pipe, which comprises the following steps: firstly, an inner layer structure of the insulator winding pipe is prepared by a pultrusion process, the inner layer structure is cylindrical, the outer diameter of the inner layer structure is matched with the inner diameter of the winding pipe, and a plurality of uniformly distributed cambered surface bulges are formed on the surface of the inner layer structure; a reinforced interface layer is formed on the outer wall of the inner layer structure, is formed by aramid fiber preform fabric, and is treated by a modified epoxy glue solution by adopting a three-dimensional orthogonal weaving process; the interface layer is tightly attached to the inner layer structure, epoxy / polyurethane glue liquid is coated outside the interface layer, and a semi-finished winding pipe product is formed; the winding pipe semi-finished product is subjected to pre-curing treatment, a small number of uncured groups are reserved, external packaging is conducted through an injection molding method, a winding pipe blank with an outer layer structure is obtained, and the outer diameter of the winding pipe blank is matched with that of the finished product; and demolding the winding pipe blank, fettling and carrying out quality inspection to obtain a finished product of the high-bending-strength composite insulator winding pipe. The method can remarkably improve the mechanical strength and durability of the winding pipe, and has wide application prospects.

The invention belongs to the technical field of insulator monitoring, and particularly relates to a composite insulator temperature rise monitoring system based on data analysis, which comprises an insulator monitoring module, a temperature rise abnormity alarm module, an operation hidden danger analysis module and a background supervision terminal, according to the invention, all composite insulators on a corresponding power line are monitored through the insulator monitoring module, the temperature rise abnormity alarm module analyzes and identifies the temperature rise abnormity performance of the corresponding composite insulator, and the operation hidden danger analysis module analyzes the operation hidden danger of the corresponding composite insulator when a temperature rise safety signal is generated. When the operation low-hidden-danger signal is generated, the aging condition of the corresponding composite insulator is evaluated through the insulator aging evaluation module, so that a supervisor can take corresponding treatment measures for the corresponding composite insulator in time, the safety of an electric power circuit is remarkably improved, and the management difficulty of the supervisor is reduced.

The invention discloses a method and a system for predicting the service life of an anti-ultraviolet aging composite insulator, and relates to the technical field of composite insulators. The method comprises the following steps: collecting product information of a to-be-evaluated anti-ultraviolet aging composite insulator, determining the corrected predicted life of the to-be-evaluated anti-ultraviolet aging composite insulator based on the product information, and predicting the service life of the to-be-evaluated anti-ultraviolet aging composite insulator based on the corrected predicted life of the to-be-evaluated anti-ultraviolet aging composite insulator. The method comprises the steps of determining an appearance state comparison value of a to-be-evaluated anti-ultraviolet aging composite insulator, determining a microscopic state comparison value of the to-be-evaluated anti-ultraviolet aging composite insulator, determining a comprehensive state value of the to-be-evaluated anti-ultraviolet aging composite insulator, and determining an actual predicted life of the to-be-evaluated anti-ultraviolet aging composite insulator based on the comprehensive state value. The problems that in the prior art, service life prediction is insufficient in accuracy, influences caused by environmental factors are not fully considered, and the service life prediction is lack of comprehensiveness are solved.

The invention relates to the technical field of image fusion, in particular to a multispectral channel image space alignment fusion method and device for avoiding image dislocation, and the method comprises the steps: collecting to-be-detected images of a composite insulator on different spectral channels on a power transmission line, and extracting an edge contour corresponding to the composite insulator in each to-be-detected image; angular points of the edge contour are extracted, and response values of all the angular points are obtained; obtaining symmetrical angular points corresponding to the angular points; calculating the saliency of each angular point; obtaining each matching point corresponding to each angular point, and determining the defect degree of each matching point; determining the matching degree of each angular point; and obtaining the feature responsivity of each corner point, screening all corner points in each to-be-detected image, extracting the feature points of each to-be-detected image, and performing image fusion. According to the method, the feature point matching precision can be improved, the efficiency and precision of multi-spectral channel image space alignment fusion are improved, and the image fusion effect is improved.

The invention relates to the technical field of external insulating materials for power equipment, in particular to silicone rubber, a preparation method thereof and application of the silicone rubber in a composite insulator. The silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber raw rubber, 5-20 parts of hydrophobic silicon dioxide aerogel powder, 3-15 parts of conductive and heat-conducting filler, 10-30 parts of modified aluminum hydroxide, 15-35 parts of fumed silica, 1-3 parts of a silane coupling agent and 2-5 parts of a structuring control agent, 1-4 parts by weight of a low surface energy auxiliary agent, and 0.5-2 parts by weight of a vulcanizing agent. The silicone rubber provided by the invention integrates long-acting hydrophobic anti-icing, active low-power-consumption ice melting and excellent arc ablation resistance, has long-term stability, and is especially suitable for high-voltage insulators in severe environments such as heavy ice areas and heavy dirty areas.

The invention discloses a composite insulator large cluster parachute heating defect judgment interference suppression method. The system comprises an infrared image acquisition and preprocessing module, a composite insulator target detection and positioning module, a composite insulator temperature field analysis module, a large umbrella group reflection area identification module, a composite insulator central axis reconstruction module and a heating defect intelligent diagnosis and interference suppression module. Complex infrared image analysis is converted into refined analysis of a temperature field and geometric features, and meanwhile, a strategy of combining deep learning and morphology is introduced to improve the precision of target detection and segmentation and ensure the robustness of central axis reconstruction and interference suppression. The method has the beneficial effects that the false alarm rate can be obviously reduced, the detection accuracy of the real heating defect is improved, the result is highly consistent with the interpretation result of an artificial expert, the processing efficiency is high, and the method is suitable for a large-scale unmanned aerial vehicle inspection scene.

The invention provides a composite insulator electric field distortion detection method based on an electroluminescent effect, and the method comprises the steps: firstly, employing silicone rubber as a matrix material, optimizing a formula and a preparation technology, and preparing an electroluminescent composite coating material which is highly sensitive to electric field intensity and has excellent adhesiveness and environmental stability; secondly, the unmanned aerial vehicle is used for carrying a high-resolution camera, and comprehensive and clear insulator surface images are obtained in combination with the optimized route design; then, multivariable regression prediction is performed on image data through an algorithm, local and global characteristics of electric field distribution are accurately captured, and modeling errors are reduced. And finally, comparing an actually measured electric field distribution curve with a theoretical curve, analyzing electric field distortion, and diagnosing potential defects by using a feature matching technology. According to the invention, high detection accuracy can be maintained in different environments, the efficiency and precision of electric field distribution detection are greatly improved, and reliable technical support is provided for maintenance and safe operation of power equipment.

The invention relates to a composite insulator tension test system, which comprises a test box, a test cavity is arranged in the test box, and an insulator assembly unit and a test unit are arranged in the test cavity; the insulator assembling unit comprises a tension trolley, a tension head, an adjusting trolley, an adjusting head and a supporting trolley. The adjusting trolley is driven by an adjusting motor to horizontally move on the guide rail, and a locking mechanism is further arranged between the adjusting trolley and the test box; a supporting rod and a bracket are installed on the supporting trolley, and the supporting trolley is driven by a supporting motor to horizontally move on the guide rail. The test unit comprises a test oil cylinder; a control unit is further arranged beside the test box and comprises a control box, a position sensor, a proximity switch and a time relay. According to the tension test system, through joint cooperation of the test box, the insulator assembling unit, the test unit and the control unit, automatic adjustment of the adjusting trolley and the supporting trolley can be achieved according to composite insulators of different lengths, manual adjustment is not needed any more, and great convenience is achieved.

The invention discloses a composite insulator linear dimension laser measuring device, and relates to the technical field of laser measuring devices, the composite insulator linear dimension laser measuring device comprises a support frame, an electric control slide rail is fixedly installed between two ends of the top of the support frame, and a laser measuring instrument is slidably connected in the electric control slide rail; through the arrangement of the arc-shaped gear ring and the arc-shaped limiting frame, the device can be adapted to the surface clamping of the composite insulators with different end shapes, and can be tightly attached to the ends with different shapes, so that the composite insulators are kept at stable positions and postures in the measurement process, and are prevented from shaking or shifting, thereby ensuring the accuracy and repeatability of laser measurement. According to the technical scheme, the clamp can be used for accurately positioning insulators with irregular ends, measuring errors caused by position changes can be avoided, in addition, the clamp can be suitable for composite insulator ends of various different shapes and specifications, reliable clamping can be achieved for round, square or other special-shaped ends, diversified measuring requirements are met, and the clamp is suitable for large-scale popularization and application. And the application range and the universality of the clamping device are improved.

The invention discloses a method for detecting the filler content in composite insulator silicone rubber, and relates to the field of content detection.The method comprises the steps that on the basis of a preset frequency value, a terahertz detection platform is adopted to conduct terahertz detection on target composite insulator silicone rubber to obtain a terahertz spectrum signal; determining an absorption coefficient based on the terahertz spectrum signal; based on a preset absorption coefficient-filler content function, determining the filler content corresponding to the target composite insulator silicone rubber according to the absorption coefficient; wherein the preset frequency value and the preset absorption coefficient-filler content function are determined by carrying out terahertz detection on a plurality of silicone rubber samples containing fillers and carrying out statistical analysis on terahertz spectrum signals obtained by detection. According to the invention, rapid, accurate and non-contact filler content detection can be realized.

The invention discloses an insulator production system which comprises a base and a lifting device, the lifting device comprises a workbench, a rail mechanism is fixedly arranged on the workbench, and the rail mechanism comprises a sliding rail and a driving unit; the rail mechanism is provided with a supporting device, the supporting device comprises a bottom frame, the bottom frame is arranged on the sliding rail, the rear side of the rail mechanism is provided with an iron core fixing seat, the front side of the bottom frame is provided with a first core rod mounting seat, and the rear side of the bottom frame is provided with a second core rod mounting seat. The lifting device is used for driving the track mechanism and the supporting device to ascend and descend at the same time, so that automatic demolding of the composite insulator of a product can be achieved, and then sectional connection injection molding of the composite insulator and automatic separation of an iron core can be achieved through relative sliding between the supporting device and the track mechanism; the production efficiency of the composite insulator is improved; and the labor intensity of production is reduced.

The invention discloses a composite insulator wear degree evaluation method and system based on multi-source information weighted fusion, and relates to the technical field of power equipment state monitoring. The method mainly comprises the following steps: acquiring a plurality of mechanical and electrical performance parameters representing the wind-sand erosive wear degree of the composite insulator, calculating a weight coefficient of each performance parameter by adopting an entropy weight method, and calculating a comprehensive wear index by utilizing the weight coefficients. And according to the comprehensive wear index, a wear degree grade is established, and quantitative evaluation of the wear state of the composite insulator is realized. According to the invention, the mechanical and electrical performance degradation condition of the insulator can be comprehensively reflected, and a scientific basis is provided for safe operation and maintenance decision of a power grid.

The invention relates to a test system and method for multiple environmental factors of a composite insulator and a medium. According to the invention, based on the environment control parameters corresponding to the target test environment of the composite insulator, through the control module in the test system for the multiple environmental factors of the composite insulator, a negative pressure module, a temperature and humidity module, a salt mist module, a raining module, a light module and a power supply module in the test system for controlling the multiple environmental factors of the composite insulator dynamically simulate various different environmental factors, and provide various climatic environments for the composite insulator in a low-pressure cabin of the test system to carry out related durability aging tests. The influence of various environmental factors on the durability aging test of the composite insulator can be comprehensively considered, and the accuracy and the test efficiency of the durability aging test of the composite insulator can be greatly improved.

The invention relates to the technical field of insulators, and discloses an AC rod-shaped suspension type composite insulator and a preparation method thereof, and the preparation method comprises the following steps: mixing and stirring an umbrella skirt raw material and a reinforcing material to obtain a premix, mixing the premix to form a rubber compound, and vulcanizing the rubber compound to obtain an umbrella skirt; after the hardware fitting flanges are connected to the upper end and the lower end of the core rod in a pressing mode, the surface of the core rod is coated with an insulator adhesive, the core rod is covered with the umbrella skirts, and the composite insulator is obtained through compaction and drying. The umbrella skirt raw material and the reinforcing material are mixed to serve as an insulator umbrella skirt which is adhered to the core rod, and the prepared alternating-current rod-shaped suspension type composite insulator has excellent mechanical strength, hydrophobic performance, heat-resistant stability and insulating performance.