1030results about "Insulators" patented technology

A radio frequency (RF) feedthrough component having an impedance greater than 20 ohms is disclosed. The feedthrough includes a ceramic body having a flexible non-ferrous conductor adhered to its outer peripheral surface and to an inner peripheral surface of an aperture through the ceramic body. A non-ferrous conductive lead is disposed through the aperture and protrudes from at least one side thereof. A non-ferrous hermetic seal is formed between a portion of the non-ferrous conductive lead disposed in the aperture and the non-ferrous conductor adhered to the surface of the aperture. The RF feedthrough can be assembled in an opening of a conductive housing to form an electromagnetically shielded package for an electrical circuit.

The utility model relates to a windproof and anti-icing convenient insulating device capable of live working, which comprises a lower-end metal accessory, an insulating body is arranged on the upper part of the lower-end metal accessory, and an upper-end fitting is arranged on the upper part of the insulating body; the upper part of the upper-end fitting is connected with a gland through a rotating shaft; the buckling part of the upper end fitting and the gland is provided with an arc-shaped groove for installing a high-voltage wire, and the arc-shaped groove is a silicone rubber cushion layer. An operation screw rod penetrating through the gland is mounted at the end, far away from the silicone rubber cushion layer, of the upper-end fitting; and a compression spring is sleeved on the operation screw rod between the upper end fitting and the gland. According to the insulator, the diameter of the upper umbrella cover is increased, so that the influence of dust, foreign matters or icing in severe weather on the insulator is avoided; lines can be maintained by live-line operation, and safe operation and maintenance of the lines are facilitated; the wire fixing structure can effectively avoid the problems of wire loosening and wire insulating layer abrasion caused by strong wind.

The invention discloses a quality monitoring system and method for insulation side expansion sleeve production, and relates to the field of pipe quality monitoring. The method comprises the steps that S1, ultrasonic wall thickness, infrared temperature, capacitance signals and process parameters are collected; S2, the signals are normalized to generate enhanced signals, and local gradient anomaly indexes are calculated; s3, a flaring stress index is calculated according to the thickness value deviation and the technological parameters; s4, calculating coupling unevenness based on a local gradient anomaly index; s5, calculating a comprehensive quality factor according to the local gradient anomaly index, the flaring stress index, the coupling unevenness and the process parameter deviation; s6, generating an anomaly identifier based on the comprehensive quality factor dynamic deviation rate and adaptive threshold detection anomaly; s7, mapping the time sequence characteristic corresponding to the abnormal identifier to a space coordinate to output defect distribution information; and S8, according to the defect distribution information, generating process parameter adjustment quantity and feeding back to a control system.

Mounting plates for elevating platforms, including a mounting apparatus with interior and exterior reinforcement components elongated vertically. The interior reinforcement piece includes an embedded bolt that extends from the interior reinforcement piece, through a wall of the platform, and through the exterior reinforcement component. The interior and exterior reinforcement components have a stepped construction to convert peel stress to shear stress.

The invention relates to the technical field of cables, and provides a corrosion-resistant insulated power cable. The corrosion-resistant insulated power cable is sequentially provided with a conductor layer, an insulating layer and a sheath layer from inside to outside, and the insulating layer is prepared from the following raw materials in parts by weight: low-density polyethylene, magnesium hydroxide and calcium carbonate composite powder, an antioxidant, dicumyl peroxide, zinc stearate and polyethylene wax; the sheath layer comprises the following raw materials in parts by weight: PVC resin, magnesium hydroxide and calcium carbonate composite powder, diisononyl phthalate, a calcium-zinc composite stabilizer, an antioxidant, polyethylene wax and calcium stearate. According to the corrosion-resistant insulated power cable prepared in the invention, the corrosion resistance of the power cable in extreme corrosion environments such as strong acid, strong alkali, high-concentration salt mist and the like is improved, and the condition that a common cable sheath is easy to expand and crack in the extreme corrosion environments is improved.

The invention provides an automatic insulator cleaning device. The automatic insulator cleaning device comprises a shell, a first driving assembly, a gear ring and a cleaning assembly. The shell is arranged on the insulator in a sleeving mode and connected with the tower pole, a rain baffle is arranged on the top of the shell in a surrounding mode, and a rain collecting space is defined by the rain baffle and the top of the shell. The multiple first driving assemblies are annularly arranged on the shell at intervals. Each first driving assembly is provided with a drainage channel communicating with the rainwater collecting space and a power conversion part used for converting kinetic energy of rainwater in the drainage channel into mechanical energy. And the gear ring is rotationally connected with the shell and is in power connection with each power conversion part. The cleaning assembly is connected with the gear ring, the cleaning assembly is provided with a plurality of cleaning parts annularly wound on the outer sides of the insulators, and the cleaning assembly is used for cleaning the surfaces of the insulators through the cleaning parts. According to the automatic insulator cleaning device provided by the invention, the surface of the insulator can be cleaned in all directions, and residual rainwater and dirt can be effectively removed.

The invention provides a fettling device and a fettling method for insulator production, and belongs to the technical field of insulator machining, the fettling device for insulator production comprises a workbench and an insulator placed in the workbench, the workbench is internally provided with a clamping assembly used for placing and clamping the insulator, and the clamping assembly is used for clamping the insulator; a fettling assembly used for fettling the insulator is arranged on one side of the clamping assembly, and a supporting assembly is arranged in the workbench; the supporting assembly comprises two sets of supporting frames arranged in the workbench in a sliding mode. By arranging the supporting assembly, it is guaranteed that all the umbrella skirts are supported, angle adjustment is carried out through the pin rollers, the supporting assembly is conveniently inserted into the bottoms of the umbrella skirts and fits the angles and shapes of the bottoms of the umbrella skirts, and the problem that a hard support makes direct contact with the machining surface and is scratched is avoided; the inclination angle of the roller can be adjusted to ensure that the roller can adapt to the inclination angle of the bottom of the umbrella skirt so as to adapt to the supporting requirements of the bottoms of different insulator umbrella skirts.

A composite wire suitable for use as a pacing or biostimulation lead has improved durability when compared to currently available materials. Specifically, a lead includes a superelastic wire including, e.g., nitinol. The wire is coated with polyimide and subsequently wound into a strand, cable, coil, or helically stranded tube. This wound structure is thermomechanically treated to shape-set the wire construct and retain a desired wound and shaped configuration, without adversely affecting the integrity of the polyimide coating.

The invention discloses a porcelain insulator and assembly in full-sealed connection, and relates to the technical field of porcelain insulators, the porcelain insulator comprises an insulator main body, the top end of the insulator main body is clamped with a U-shaped clamp, the U-shaped clamp is matched with a clamping plate, and the U-shaped clamp is in threaded connection with a fastening nut for positioning the clamping plate; vertical plates are fixedly connected to the two sides of the top of the U-shaped clamp, a supporting plate with the adjustable angle is arranged between the two vertical plates, and a sealing plate is arranged on the top of the supporting plate in a matched mode. A first threaded rod is rotationally arranged at the bottom end of the supporting plate, a pressing block is rotationally connected to the clamping plate, and a second threaded rod is fixedly connected to the pressing block. According to the porcelain insulator and the assembly in full-sealed connection, the supporting plate, the threaded sleeve, the cross rod and the limiting strip are arranged, the supporting plate is installed in an assembling mode, the inclination angle of the supporting plate is flexibly adjusted, meanwhile, the anti-rotation resistance of the fastening nut and the threaded sleeve is improved, the risk of slight looseness caused by wind vibration is reduced, and the use stability of the porcelain insulator is guaranteed.

The invention discloses an ultrasonic stress-induced ice layer breaking deicing method, system and device for an insulator, and the method comprises the steps: sequentially transmitting a first frequency detection signal and a second frequency detection signal through an ultrasonic transmitting unit, collecting a reflection signal, and judging whether ice coating exists or not based on the characteristic difference of amplitude attenuation, propagation time difference and phase offset; if icing exists, deicing ultrasonic waves with initial power are transmitted, a power adaptive adjustment model is constructed by using real-time signals reflected by an icing layer, and the deicing power is dynamically optimized in combination with the characteristic change rate; the double-frequency signals are transmitted again at regular intervals, and after re-check reflection signals are collected and subjected to temperature correction, whether ice coating is completely removed or not is judged through characteristic differences; the system comprises an ultrasonic transmitting / receiving module, an icing judgment module and a power adaptive adjustment module. The device comprises a high-frequency ultrasonic generator, an ultrasonic transducer and a microcontroller. The device realizes integration of ultrasonic detection, deicing and effect verification, and is suitable for various insulator winter icing removal scenes.

The invention relates to the technical field of power equipment, in particular to an umbrella-shaped hollow porcelain insulator which comprises a supporting shaft, an umbrella cap and a bottom plate are arranged at the upper end and the lower end of the supporting shaft respectively, a high-voltage wire is installed at the top of the umbrella cap, and a plurality of large umbrella skirts and a plurality of small umbrella skirts are arranged between the umbrella cap and the bottom plate; central cylinders are fixedly mounted in the middles of the large umbrella skirts and the small umbrella skirts, notch grooves are formed in the side faces of the central cylinders and form C-shaped structures, and upper clamping plates and lower clamping plates are fixed to the edges of the upper ends and the lower ends of the central cylinders respectively; the beneficial effects are that the plurality of large umbrella skirts and the plurality of small umbrella skirts are arranged on the outer side of the supporting shaft, the central cylinders are installed in the middle parts of the large umbrella skirts and the small umbrella skirts in a penetrating manner, and two adjacent central cylinders can be separated by sliding the umbrella skirts at any position along the length direction of the supporting shaft; according to the device, the umbrella skirts can be independently replaced, the replacement cost is low, and replacement is convenient.

The invention discloses a preparation method of an optical fiber insulator, and relates to electrical equipment and insulator technologies, and the preparation method comprises the steps: carrying out spiral groove cutting on a composite core rod, and sequentially carrying out phosphating treatment, plasma activation and nano coating deposition treatment; performing fitting treatment on the optical fiber and the treated composite core rod; the surface of the composite core rod is wrapped with a prepared sheath, the sheath is of a microphase separation structure formed by mixing liquid crystal polymer LCP and hydrogenated nitrile rubber HNBR as base materials according to the specified mass ratio, injection molding is conducted through a magnetic field induction orientation technology, the axial thermal expansion coefficient of the sheath is reduced to 28 * 10 / K to be close to that of the core rod, and the core rod is made of a composite material. The radial thermal expansion coefficient is kept at 90 * 10 / K and is close to the umbrella skirt; the outer side of the sheath is provided with umbrella skirts, and the two ends of the composite core rod are provided with hardware fittings. According to the method, self-adaptive regulation and control of the thermal expansion coefficient of the sheath material can be realized, and the anchoring stability, the interface durability and the electrical reliability of the optical fiber are remarkably improved.

The invention belongs to the technical field of ceramic insulator processing, and discloses a lightning protection ceramic insulator product processing glaze spraying device and method.The lightning protection ceramic insulator product processing glaze spraying device comprises a workbench, the top of the workbench is fixedly connected with a mechanical arm glaze sprayer, one end of the workbench is fixedly connected with a square box, the top of the square box is fixedly connected with a fixed box, and the lightning protection ceramic insulator product processing glaze spraying device further comprises a glaze spraying device, a glaze spraying processing mechanism and a cross sleeve rod drive a lifting disc and the ceramic insulator to rotate, a mechanical arm glaze spraying device can conveniently conduct all-dimensional glaze spraying work on the outer wall of the ceramic insulator, in the process that two flexible sleeve plates extrude an inner cavity of the ceramic insulator, it can be ensured that the ceramic insulator stably rotates, and the glaze spraying efficiency is improved. And the glaze spraying accuracy of the mechanical arm glaze sprayer on the ceramic insulator is improved. In general, when glaze spraying work is carried out on more ceramic insulators at the same time, the rotation of the multiple ceramic insulators can be more stable due to the dead weight of the multiple ceramic insulators, and glaze spraying of the mechanical arm glaze spraying device on the outer walls of the ceramic insulators is more accurate.

An electrical feedthrough is provided, including a base body having at least one opening , through which an electrical conductor is fed and is held in the opening by a fixing material , wherein the fixing material seals the opening and wherein the base body has an elongated form and has a reinforcing structure at least on the edges of the long sides. The reinforcing structure is designed as a raised edge region, which is offset vertically with respect to a base plane of the base body .

The invention discloses oil shale waste / fly ash glass ceramics as well as a preparation method and application thereof, relates to the technical field of glass ceramics, and solves the problems that in the prior art, OSA post-treatment is serious in environmental harm and low in resource utilization rate, and when OSA is applied to glass ceramics preparation, the crystal phase structure is unstable, the process controllability is poor, and the production cost is high. And high quality, low cost and sustainable utilization of the microcrystalline glass are difficult to realize at the same time. The oil shale waste / fly ash glass ceramic is prepared from 80 parts of industrial waste residues, 4-6 parts of nucleating agent and 14-16 parts of auxiliary components, the industrial waste residue is composed of 50-75 parts of oil shale residue and 5-30 parts of fly ash; the preparation method comprises the following steps: mixing the oil shale waste with the fly ash, adding the nucleating agent and the auxiliary components, grinding, melting, preserving heat, pouring the melt into a mold, and annealing to obtain base glass; and carrying out polishing treatment and heat treatment on the base glass to obtain the microcrystalline glass. The invention can be applied to the fields of building decoration and electrical insulating materials.

The utility model provides an anti-collision column type porcelain insulator, and especially relates to the technical field of column type porcelain insulator protection, the anti-collision column type porcelain insulator comprises a column type porcelain insulator body, after the production of the column type porcelain insulator body is completed, when the column type porcelain insulator body is transported, the column type porcelain insulator body is placed in a placing groove of a first protective cover, and the first protective cover is arranged on the column type porcelain insulator body. Through the arrangement of the placing groove, the column type porcelain insulator body is protected, the porcelain body on the outer surface of the column type porcelain insulator body is prevented from being collided, through the arrangement of the storage hole, the nut can be prevented from being lost in the transportation process, when the first protective cover and the second protective cover are in butt joint, the clamping block on the outer side of the inserting column can penetrate through the inserting through groove, the clamping block is arranged on the inner side of the through groove, and the nut is prevented from being damaged. After butt joint of the first protective cover and the second protective cover is completed, an inserting column is pulled, a spring is compressed through a sliding plate, a clamping block slides out of a through groove, then the inserting column is rotated by 90 degrees, the inserting column is loosened, the spring rebounds, the clamping block is clamped into a fixing groove, and therefore pre-butt joint of the first protective cover and the second protective cover is achieved.

This application discloses an insulated torsion bar spline, comprising a straight section, a recessed section, a tapered section, and a bottom section arranged sequentially from top to bottom. The maximum diameter of the recessed section, tapered section, and bottom section is less than or equal to the diameter of the straight section. The total height of the insulated torsion bar spline is defined as L, the height of the straight section as L1, the height of the recessed section as L2, the height of the tapered section as L3, and the height of the bottom section as L4, satisfying the following conditions: 10%L≤L1≤15%L, 38%L≤L2≤43%L, 45%L≤L3≤49%L, and L4≤1%L. The diameter of the straight section is defined as D, and the maximum depth of the recessed section is 2%~4%D. The insulated torsion bar spline is made of metal, and the straight section, recessed section, tapered section, and bottom section are connected as a single structure. This application's insulated torsion bar spline, through optimization of its shape and dimensions, effectively improves the torque of the insulated torsion bar.

A cantilever insulator sheath with an anti-bird function comprises a sheath body, the top of the sheath body is communicated with a cantilever sleeve, an anti-bird umbrella skirt is arranged between the sheath body and the cantilever sleeve, and the bottom of the sheath body is communicated with an insulator umbrella sleeve connecting pipe. The sheath body, the cantilever sleeve, the anti-bird umbrella skirt and the insulator umbrella sleeve connecting pipe are all made of soft materials, a first through groove is formed in one side of the sheath body, a second through groove is formed in the position, corresponding to the first through groove, of the cantilever sleeve, a third through groove is formed in the position, corresponding to the first through groove, of the anti-bird umbrella skirt, and the third through groove is communicated with the third through groove. A fourth through groove is formed in the position, corresponding to the first through groove, of the insulator umbrella cover connecting pipe, and the first through groove, the second through groove, the third through groove and the fourth through groove can be fixed through a fixing device. According to the utility model, the anti-bird umbrella skirts, the sheath body and the cantilever sleeve are integrally arranged, so that integral installation can be realized, the operation is simple, and the installation efficiency is effectively improved.

The utility model discloses a hollow composite insulator convenient to install, and relates to the field of hollow composite insulator devices, the hollow composite insulator comprises a hollow composite insulator main body and a support frame, and the hollow composite insulator main body is fixedly installed at the top of the support frame through an installation assembly. According to the hollow composite insulator, the supporting plate is installed at the bottom of the hollow composite insulator body, the contact area between the bottom of the hollow composite insulator body and the supporting frame can be increased through the supporting plate, the force distribution can be more uniform by increasing the contact area between the hollow composite insulator body and the supporting frame, and the connection stability is enhanced; when the core rod is subjected to external force, the force can be better transmitted to the supporting frame through the supporting plate, the situation that local pressure of the hollow composite insulator body is too large can be reduced through the supporting plate, and deformation or damage caused by local stress concentration of the hollow composite insulator body and the supporting frame is avoided. And the strength of the hollow composite insulator after integral installation is improved.

The invention discloses a detachable traceless silicone rubber creepage-increasing umbrella skirt and processing equipment and a processing technology thereof, and belongs to the technical field of electric insulation accessory processing, the detachable traceless silicone rubber creepage-increasing umbrella skirt specifically comprises an umbrella skirt body, a mounting hole matched with an insulation plate is formed in the middle of the umbrella skirt body, and an interlocking opening communicated with the mounting hole is formed in the umbrella skirt body in the radial direction of the umbrella skirt body; the interlocking opening can realize autonomous closing and locking, and the closed umbrella skirt body forms a complete closed-loop structure; according to the invention, through the arrangement of the interlocking opening, the umbrella skirt body is directly sleeved into the insulating plate and then the interlocking part is buckled during installation, the umbrella skirt body is separated by hands during disassembly, tools are not needed, adhesive residues are avoided, mechanical damage is avoided, detachable traceless installation is truly realized, the insulating plate body is not damaged, and the later maintenance and replacement efficiency is greatly improved.

The systems, methods, and communication cables taught herein provide cryogenic cooling, high voltage connections, and other electrical connections to a sample on a stage within a vacuum environment while still enabling stage motion in at least five degrees of freedom with minimal stage vibration to achieve new or improved measurement applications in situ within a microscope, such as in-situ microscopy, in-situ microscopy, in-situ microscopy, in-situ microscopy, in-situ microscopy, in-situ microscopy, in-situ microscopy, in-situ microscopy, in-situ microscopy, in-situ microscopy, and in-situ microscopy. Such as atomic probe chromatography and testing of quantum computing components. The connection cables taught herein combine connections into a single connection cable within an outer spring suitable for use in ultra-high vacuum. These connection cables are also shaped and configured to maintain at least a minimum spacing distance from components in the surrounding environment (e.g., chamber walls and other equipment) to prevent mechanical, electrical and thermal shortcuts.

The utility model relates to the technical field of mica tape processing, in particular to a pressing device for mica tape processing, and solves the problems that in the prior art, when mica tapes are pressed, different types of mica tapes are inconvenient to press, so that the overall efficiency of mica tape pressing processing is influenced, and the mica tape pressing flexibility is reduced. A pressing device for mica tape processing comprises a frame body, bearing plates are slidably connected to one side of the upper portion and one side of the lower portion of the inner side of the frame body, pressing rods are rotatably connected to one sides of the two bearing plates through rotating shafts, the two pressing rods are sleeved with extrusion sleeves, and protruding blocks are fixedly connected to the inner walls of the two extrusion sleeves; the protruding block is in sliding connection with the pressing rod through the limiting groove. The mica tape pressing device can be suitable for pressing mica tapes of different thicknesses or materials, meets the requirements of the mica tapes of different materials on extrusion sleeves of different materials, and improves the production convenience and efficiency.

The invention discloses an epoxy CCTO gradient coating method for improving the flashover characteristic of an alternating current insulator and a prepared epoxy CCTO gradient non-uniform modified insulator, and belongs to the technical field of high-voltage insulating materials. The method comprises the following steps: stirring epoxy resin, calcium copper titanate, a dispersing agent and a catalyst, adding a curing agent, and performing secondary stirring to prepare slurry; the insulator is non-uniformly divided into four layers in the axial direction, the slurry is sequentially sprayed to the first layer area to the fourth layer area of the insulator, and the insulator is solidified; 5 points are randomly selected for each layer by using a hardness tester, the surface hardness of the coating is measured, the next step is carried out when the hardness value reaches the target hardness, and secondary curing is carried out when the hardness value does not reach the standard; and the epoxy CCTO gradient non-uniform modified insulator is obtained. According to the epoxy CCTO gradient coating method for improving the flashover characteristic of the alternating current insulator, an efficient solution is provided for surface electric field optimization and flashover performance improvement of high-voltage insulation equipment.

The utility model discloses a kind of automatic glaze spraying devices of stick porcelain insulator, including workbench, clamping assembly for being used to clamp insulator is provided on workbench, clamping assembly is driven to run by first drive component, fixed rack is provided at workbench both ends position, fixed rack is provided with spray head, spray head is driven to run by second drive component, storage box is provided on one side of workbench, pump is provided on storage box;Advantages are: effectively solve the traditional manual or simple mechanical glaze spraying mode, not only low efficiency, but also difficult to accurately control glaze layer thickness, leading to unstable product quality, high scrap rate, and equipment cannot be adapted to different size specifications insulator, the problem of poor versatility.

The present application relates to porcelain insulator recycling device and working method, including for receiving the insulator to be recycled, and conveying the insulator to the disassembly workstation in the feeding unit;Disassembly unit has disassembly machine and disassembly workstation, C type support is provided on the disassembly workstation, through the air hammer of disassembly machine, hammer the metal end of insulator, under the shearing action of C type support, porcelain umbrella skirt breaks and separates from metal core rod, broken porcelain piece is recycled and preserved by discharging unit, and the separated metal core rod falls into the space below the hollow part of C type support to realize collection.According to the structural characteristics of porcelain insulator, the porcelain insulator to be recycled is sent into the disassembly workstation one by one by the feeding unit and falls into the "C" type support, the core rod of the insulator is hammered, the porcelain umbrella skirt part of the insulator is broken and separated from the metal core rod, which can run in an automatic mode without manual intervention, thereby reducing the personal injury of porcelain piece.

The invention belongs to the technical field of insulator processing equipment, particularly relates to high-temperature vacuum sintering processing equipment and method suitable for tantalum insulator preparation, and aims to solve the problems of nonuniform cooling and low efficiency caused by door collision due to mutual correlation errors in multi-source driving of the equipment and difficulty in breaking a heat boundary layer by fixed blowing. The furnace mainly comprises a furnace body, and a furnace pipe is arranged in the furnace body and fixed through a supporting rod. The pushing structure comprises a pushing plate, a driving rod and a transmission shaft, the driving rod is meshed with a worm gear I and a worm gear II, the worm gear I is connected with a rotating shaft to control opening and closing of the furnace cover, and the worm gear II drives a rotating plate and a pin rod through the transmission shaft to enable the pushing plate to move, so that automatic pushing after sintering is achieved, and high-temperature gas damage is avoided; the atmosphere control structure comprises a vacuum pump and a negative pressure pipe for vacuumizing, and a pipe body and a U-shaped gas pipe for injecting argon to form a low-vacuum inert atmosphere; the cooling structure is composed of a U-shaped pipe, a fixing cylinder and a purging assembly. According to the equipment, the operation safety and the sintering efficiency are improved.

The utility model belongs to the technical field of glass insulator detection, and discloses a glass insulator stress screening device which comprises a supporting base and supporting stand columns installed on the two sides of the supporting base respectively, a driving mechanism is installed on the supporting stand columns, a crawler belt is installed on the driving mechanism, and the crawler belt is driven by the driving mechanism to operate. The output end of the cold air blower is connected with a cold air conveying pipe, the other end of the cold air conveying pipe is close to the lower surface of the crawler belt, the upper end of the supporting stand column is provided with a top end support, the upper side of the top end support is provided with a fan, the lower side of the top end support is provided with a mounting plate, and the mounting plate is provided with a wind scooper. According to the utility model, a dual cooling mechanism is adopted, cold air is blown to the crawler belt up and down at the same time, and the temperature of the crawler belt is reduced doubly, so that the temperature of the crawler belt is rapidly reduced to the temperature at which whether the glass insulator is a qualified product or not can be detected, and the qualified glass insulator is effectively detected.

The invention discloses a voltage-sharing insulator for an environment-friendly gas insulation cabinet, which comprises an insulation layer, a first insert and a second insert, the first insert is arranged at the first end of the insulation layer, the second insert is arranged at the second end of the insulation layer, and the axis of the first insert and the axis of the second insert coincide with the axis of the insulation layer. Each of the first insert and the second insert comprises a spherical end and a connecting end, the spherical ends of the first insert and the second insert are completely embedded into the insulating layer, and the connecting ends extend out of the insulating layer. The composite insulator is excellent in insulation performance, and has transmission, voltage-sharing and shielding functions besides the basic functions of a traditional insulator.

The invention relates to the field of insulator production, in particular to a blank scraping device for electric insulator production. An existing device is inconvenient to keep the stability of a blank during scraping, so that the scraping quality is poor, and whether the blank is placed in the middle or not is inconvenient to intuitively know. A blank scraping device for electric insulator production comprises a bottom plate and the like. A driving motor is fixedly connected to the bottom plate, a first rotating disc and a second rotating disc are arranged on the bottom plate, transmission assemblies are connected between the first rotating disc and the driving motor and between the second rotating disc and the driving motor, a first supporting table is fixedly connected to the first rotating disc, and a second supporting table is fixedly connected to the second rotating disc. The side face of the slope block makes close contact with the side face of the friction block, then the friction force between the slope block and the friction block enables the connecting ring and the sliding frame not to reset upwards, and therefore it is guaranteed that when the swing cushion block limits and supports the surface of the blank, shaking or jumping is not prone to occurring, and stability is higher.