1657results about "Overhead installation" patented technology

The invention relates to the technical field of wire disaster prevention analysis, and discloses an overhead transmission line icing monitoring and disaster prevention method and system. The method comprises the following steps: acquiring meteorological parameters, stress data and icing images through distributed sensing nodes; performing time-space synchronization processing on the data; calculating icing state information; evaluating an icing risk level; selectively starting the deicing device; and storing the data and extracting a law to optimize a disaster prevention plan. According to the invention, accurate monitoring of the icing state, scientific assessment of risks, intelligent selection of deicing measures and continuous optimization of disaster prevention strategies are realized, so that the ability of the power grid to deal with icing disasters is significantly improved, and economic losses and potential safety hazards are reduced.

The invention discloses a bird repelling method and related equipment for a power distribution iron tower, and the method employs a multi-dimensional sensor for cooperative operation, and collects infrared, sound, images and radar reflection signals in real time. Through multi-dimensional data fusion, the appearance, sound wave and behavior characteristics of the bird flock are deeply mined, the bird flock type is accurately identified, and the problem of insufficient detection of a single sensor is solved. Based on the sensitivity difference of different bird flocks to vision, hearing and ultrasonic waves, bird repelling modes such as strong light stroboflash, sound or ultrasonic waves are dynamically matched from the preset bird repelling strategy library, the adaptability of birds to a single bird repelling means is avoided, and the bird repelling success rate is remarkably increased. And a closed-loop optimization mechanism is formed by iteratively optimizing a strategy library matching rule by using bird repelling effect feedback data, so that the system can adapt to the environment and bird behavior changes, and the long-term bird repelling effect is enhanced. Compared with the prior art, line fault risks caused by bird activities are effectively reduced, and safe and reliable operation of a power system is powerfully guaranteed.

The invention provides an overhead ground wire uninterruptible ice melting automatic segmentation method and system and a storage medium, and the method comprises the following steps: constructing an ice melting evaluation model based on the environment conditions and structure parameters of a power transmission line, and judging whether an ice melting device has enough output capability or not; if the output capability of the ice melting device is not enough to cover the whole ground wire for ice melting, constructing a plurality of segmentation configurations at the sectionable tower, generating a candidate segmentation scheme set, and performing electrical parameter calculation on each candidate segmentation scheme; taking minimization of the number of segments and minimization of ice melting energy consumption as double targets, adopting a multi-target genetic algorithm to carry out iterative evolution on the candidate segment scheme set, and screening out a Pareto optimal solution set meeting the capacity of an ice melting device and line safety constraints; and selecting the optimal segmentation configuration meeting the uninterrupted ice melting requirement from the Pareto optimal solution set, and outputting the optimal segmentation configuration. According to the invention, good lightning protection performance and economical efficiency can be taken into account under the condition of live ice melting without power failure.

The invention relates to the technical field of fan blade deicing, and discloses an intelligent temperature control type fan blade electric heating deicing control system and method, and the system comprises a meteorological sensing module which is used for collecting the environment temperature, humidity, wind speed and rainfall type; the blade state monitoring module is used for acquiring blade surface temperature distribution and ice layer thickness data; the dynamic decision-making module is used for generating a partition heating instruction based on the data of the weather sensing module and the blade state monitoring module; the temperature control execution module is used for converting the instruction into a gradient signal; the heating array module is used for executing electric heating deicing operation in the blade surface subareas; and the energy coordination module is used for dynamically constraining the total power of the system. The meteorological sensing module and the blade state monitoring module are integrated through the system, real-time collection and fusion of multi-source data of blade surrounding environment parameters and the thickness of an ice layer are achieved through the design, comprehensiveness and accuracy of icing monitoring are improved, a reliable basis is provided for dynamic decision making, and therefore the response capacity and early warning precision of the system to icing risks are improved.

The invention relates to the technical field of information, and discloses a fault current suppression method and system for a direct-current deicing device, fault current data of the direct-current deicing device are analyzed through fast Fourier transform, and direct-current bus voltage drop data are obtained based on an analysis result and are processed through a support vector regression algorithm, so that a fault current suppression result is obtained. Obtaining a voltage stress sudden increase trend and further determining stress distribution data of a switching device in the device; processing the stress distribution data by a Kalman filtering algorithm to obtain a processing result so as to determine a dynamic correction coefficient of a bridge arm switching time sequence, and processing the dynamic correction coefficient and element response delay data of the device by a particle swarm optimization algorithm to generate a bridge arm switching time sequence so as to determine a real-time adjustment parameter influencing the discharge rate of a buffer capacitor in the device; and comparing voltage oscillation characteristics before and after matching to determine an impedance compensation value of a commutation path for execution, thereby realizing effective suppression of current oscillation in the DC deicing device.

The invention discloses a cable anti-icing coating robot which comprises a rack, a gravity closing support, a spraying mechanism, a feeding mechanism, a returning mechanism, a cleaning mechanism and a walking mechanism, and the gravity closing support facilitates in and out of a cable, achieves self-locking of the robot on the cable and prevents the robot from overturning; the spraying mechanism realizes automatic spraying, so that people are prevented from being in close contact with the coating, and human health is prevented from being harmed; the feeding mechanism provides paint for the spraying mechanism and serves as a balance weight component of the robot to enable the robot to keep balance. The material returning mechanism is used for recycling redundant paint sprayed by the spraying mechanism, so that the paint is saved, the environment is protected, and pollution is reduced; the walking mechanism drives the robot to automatically walk on the cable, and high automation of the robot is achieved. And the annular inner brush is used for firstly self-cleaning the wire and then spraying, so that the coating effect is better. According to the robot spraying method for the cable anti-icing coating, unmanned high-altitude automatic operation is achieved, and the construction quality and environmental protection benefits of the anti-icing coating are improved.

The invention provides a deicing control method and system for a power transmission line in a cold region, and relates to the technical field of power system power transmission line operation and maintaining.The method comprises the steps that icing data of the power transmission line are collected, the icing data are multi-source data and comprise the ice layer thickness, the ice type category and the distribution characteristic, and the ice layer thickness, the ice type category and the distribution characteristic are obtained by combining environment temperature, humidity and geographical location information; dynamically selecting a plurality of spatial sampling positions on the target line to construct a spatial correlation area for feature analysis; and obtaining correction parameters based on morphological characteristics of the spatial correlation region, performing spatial superposition and feature fusion analysis on the multi-source data according to the correction parameters, and extracting an icing feature set which is dynamically corrected and reflects the overall icing state of the line. According to the invention, differentiated ice removal in different climate areas can be realized, and intelligent deicing control of accurate identification, mode adaptation and closed-loop adjustment is realized in combination with multi-source monitoring data.

The invention relates to an electromagnetic pulse collaborative deicing system based on multi-mode perception. The system comprises a power supply system; the FPGA controller is used for logic control and signal processing, calculating electromagnetic pulse parameters and realizing high-speed and accurate deicing instruction scheduling; a sensing module; a real-time detection system; a pulse generation unit; and the deicing module executes an electromagnetic pulse deicing action and efficiently removes ice covered on the surface of the power grid. The invention further discloses an electromagnetic pulse collaborative deicing method based on multi-mode sensing. Through the electromagnetic pulse technology, the power transmission and distribution line ice can be efficiently removed, compared with a traditional thermal ice melting method, the energy consumption is greatly reduced, the response speed is remarkably increased, and the deicing strategy and parameters are dynamically adjusted according to real-time monitoring data based on the real-time signal processor of the FPGA; the power supply priority can be dynamically adjusted according to the energy supply condition, the energy is improved to the maximum extent, and an accurate deicing basis is provided for the system.

According to the technical scheme, the power transmission line comprises a plurality of lines, and the method comprises the following steps: calculating the ice thickness prediction value of each ice melting section based on the real-time ice thickness prediction value of each ice melting section, the bearing capacity of a tower, the tension and crossing distance of a ground wire, and the load of a hardware fitting and an insulator; calculating the real-time icing safety degree of each ice melting section; sequencing all the ice melting sections according to the real-time icing safety degree of each ice melting section to form an ice melting sequence set, and selecting the ice melting section with the highest ice melting urgency degree according to the ice melting sequence set to execute ice melting operation; in the ice melting process, ice melting current is intelligently regulated and controlled according to real-time monitoring data, a fastest ice melting mode or a common ice melting mode is selected according to an external instruction, and three strategies of aggressive, balanced and conservative are further subdivided in different modes; according to the invention, efficient and safe ice melting operation can be realized under complex working conditions, and the operation reliability and the ice melting efficiency of the power transmission line are remarkably improved.

The invention discloses a method and a system for optimizing an intelligent ice melting device of an ultra-high voltage transmission line, which are applied to the field of transmission line maintenance, and comprise the following steps of: analyzing and processing state data of an iced line to obtain time-domain dynamic data reflecting ice layer thickness and wire temperature change, extracting harmonic components from the time-domain dynamic data, and calculating the ice layer thickness and the wire temperature change according to the harmonic components. Obtaining ice layer state frequency domain distribution data according to the harmonic component, and determining an ice layer state change trend according to the ice layer state frequency domain distribution data; constructing a power transmission line harmonic state space model, and reconstructing the optimized power transmission line harmonic state space model to obtain an ice layer impedance dynamic prediction model; in the actual ice melting process, the operation parameters of the ice melting device are dynamically optimized and adjusted according to the ice layer impedance dynamic prediction model. According to the method, the dynamic characteristics of the ice layer state can be accurately extracted, the ice melting efficiency and accuracy are improved, excessive ice melting or insufficient ice melting is avoided, and the operation safety of the power transmission line is enhanced.

The invention relates to the technical field of power transmission line deicing, in particular to a multi-split conductor flying deicing robot. The flying mechanism is mounted on the aircraft body and used for driving the aircraft body to go up and down; the displacement mechanism is installed on the machine body and used for driving the machine body to walk and move on the upper-layer wire. The first avoiding mechanism is installed on the machine body, an upper-layer deicing mechanism is installed on the first avoiding mechanism, and the first avoiding mechanism is used for driving the upper-layer deicing mechanism to be close to or away from an upper-layer wire; the first avoiding mechanism, the second avoiding mechanism and the flying mechanism are installed on the machine body, and when wire feeding and wire discharging are needed, the machine body can be driven by the flying mechanism to fly to the position above a specified four-bundle conductor. And then the flight mechanism is controlled to descend and land under the assistance of visual identification, so that the displacement mechanism can fall onto the upper-layer wire.

The invention discloses a cable deicing robot which is composed of a walking module, a clamping anti-falling module, a solar power supply module and a deicing module, the walking module drives walking wheels through a motor, and stable movement of the robot on an iced cable is achieved; the clamping anti-falling module is composed of an electric push rod, an anti-falling wheel, a support of the anti-falling wheel, a guide rod, a fixing plate and a connecting piece and provides reliable clamping and anti-falling protection in the walking process of the robot. The solar power supply module drives a sliding block guide rail system through a lead screw motor to adjust the extension length of a solar panel, the shaking influence of wind on the machine is reduced in a strong wind environment, and meanwhile efficient energy collection and storage are achieved. The deicing module reasonably utilizes the dead point position of the connecting rod mechanism and is combined with the deicing cutter head with a reasonable structure, so that the deicing operation can be efficiently and stably completed. According to the invention, the modular design and multi-mechanism coordination can stably operate in a complex environment, the deicing efficiency and stability are remarkably improved, the wind resistance is high, the energy consumption is low, and the deicing effect is remarkable.

The invention, which belongs to the technical field of power transmission line deicing, discloses an ice and snow disaster-resistant power transmission line adaptive ice melting device comprising an annular body of which the inner diameter is adaptive to the outer diameter of a power transmission line and which is used for being fixed on the power transmission line in a surrounding manner; the distributed temperature sensor array is uniformly embedded in the inner surface of the annular body and is used for monitoring the surface temperature distribution of the power transmission line in real time; the heating element layer covers the periphery of the annular body, comprises at least two conductive film layers which are insulated from each other, and is used for generating Joule heat in gradient distribution; and the control module is arranged in the waterproof cavity at the side part of the annular body, is electrically connected with the temperature sensor array and the heating element layer, and is used for dynamically adjusting heating parameters according to the temperature data. When temperature values of more than three adjacent sensors are detected to be lower than a freezing point threshold value, a gradient heating program is started, the current density of each conductive film layer is dynamically adjusted according to an icing thickness calculation model, and melting and falling of an ice layer are realized.

The invention relates to a low-voltage distribution network non-power-off online ice melting method based on mobile power supply equipment, and the method comprises the following steps: obtaining meteorological information, and line parameter information and line icing information of a low-voltage distribution network; according to the meteorological information, the line parameter information and the line icing information, calculating the minimum ice melting current required by the icing line and the ice melting line power under the minimum ice melting current; and selecting to deploy a first mobile power supply device for transmitting power, or deploying a second mobile power supply device and the first mobile power supply device for transmitting power and absorbing power respectively, so as to carry out ice melting operation based on the ice melting line power. Ice melting can be carried out without power outage, and the supporting capacity of a distribution network line for coping with extremely cold climate is improved.

The invention discloses a distribution network low-voltage extension type direct-current ice melting method and an ice melting management system, and relates to the field of disaster prevention and reduction of an electric power system, and the method comprises the steps: obtaining an electrical characteristic signal, an icing thickness value and weather forecast data of each target line; calculating power loss distribution of each target line, and dividing the target line into a plurality of electron supply zones; inputting the icing thickness value and the weather forecast data into an icing prediction model to obtain an icing development trend; carrying out correlation operation on the icing development trend and the corresponding power loss distribution to obtain an ice melting priority and an ice melting current value; generating a power supply execution sequence and a direct-current power supply output parameter; and generating an ice melting execution scheme based on the power supply execution sequence and the DC power supply output parameters, and implementing ice melting power supply according to the ice melting execution scheme and the power supply execution sequence. According to the invention, ice melting planning can be carried out, and electric energy waste is avoided.

The invention relates to the technical field of power electronics, in particular to a DC deicing current oscillation suppression method and system, and the method comprises the steps: obtaining an equivalent inductance value and an equivalent capacitance value according to the operation environment data of a DC deicing system; according to the equivalent inductance value and the equivalent capacitance value, when the current state of the direct current deicing system does not meet the current oscillation suppression condition, generating a valve group control optimization strategy based on the equivalent inductance value and the operation environment data; extracting current oscillation characteristic data according to the current waveform data and determining the ice melting efficiency according to the current oscillation characteristic data in the process of controlling the direct current ice melting system to execute ice melting operation through the valve group control optimization strategy; and when the ice melting efficiency does not reach the standard, optimizing the valve group control optimization strategy by using the current oscillation characteristic data and a multi-objective optimization algorithm, and outputting an optimal ice melting control strategy. By dynamically optimizing the valve group control strategy, the ice melting efficiency is considered while the current oscillation is suppressed, and the stable operation of the direct current ice melting system is ensured.

The utility model relates to the field of contact line deicing, and discloses a deicing device for a high-speed electrical railway contact line, which comprises a deicing sleeve which is arranged along the length direction of the contact line and wraps the upper surface of the contact line, the outermost layer of the deicing sleeve is an insulating layer, and a conductive wire for heating is arranged in an inner cavity of the deicing sleeve. Two ends of the conductor wire are respectively connected with an external power supply; a plurality of positioning wire clamps are evenly arranged on the deicing sleeve in the length direction of the deicing sleeve, and the deicing sleeve and the contact wire are stably connected through the positioning wire clamps. According to the utility model, the deicing sleeve for providing a heat source is arranged on the contact line, so that the overhead line system is prevented from icing, and the overhead line system has the beneficial effects of convenience in use, strong practicability, high safety, good anti-icing and deicing effects and easiness in monitoring.

The invention discloses a direct-current ice melting system of a subway overhead line system, which comprises an overhead line system and a running rail, and further comprises a subway rectification module and a direct-current ice melting module, the subway rectification module and the direct current ice melting module are connected with the contact network. The invention further discloses a direct-current ice melting method of the subway overhead line system. The direct-current ice melting device can stably output direct-current ice melting current in a large range to meet the ice melting requirements under different scenes, meanwhile, different wiring modes are adopted according to the ice melting requirements to melt ice on a plurality of contact nets or walking rails at the same time, and the operation time is saved.

The invention belongs to the technical field of electric power inspection, and discloses a power distribution equipment unmanned aerial vehicle and an inspection method. The bottom of the unmanned aerial vehicle body is fixedly connected with a camera; the camera is fixedly connected with a camera air injection assembly, and the air outlet end of the camera air injection assembly faces the camera lens. The unmanned aerial vehicle body is provided with a moving assembly which is movably connected with the cable. The moving assembly is fixedly connected with a beating assembly; the beating assembly comprises a rotating block, a rubber sleeve, a first rotating plate, a transverse shaft, a torsional spring, a rotating bearing and a connecting transverse rod, the transverse shaft is fixedly connected with the side wall of the moving assembly, the inner end of the torsional spring is fixedly connected with the moving assembly, and the outer end of the torsional spring is fixedly connected with the first rotating plate; according to the invention, the accuracy of an image collected by the camera is ensured, blurring is avoided, dust removal while moving is realized, the outer wall of a cable is cleaned, and the surface of the cable is inspected in a later period.

The invention provides a power transmission line icing multi-mode monitoring method and system, relates to a line deicing technology, and adopts a flaming type unmanned aerial vehicle to perform deicing operation, to perform deicing operation on a power transmission line through a single unmanned aerial vehicle, and to perform deicing operation on the power transmission line through cooperation of a plurality of unmanned aerial vehicles. According to the unmanned aerial vehicle, the deviation degree of flames can be detected in the deicing process, so that the deicing angle of the unmanned aerial vehicle can be adjusted when the deviation of the flames is too large, flame deviation and heat loss caused by wind interference are reduced, heat can be more effectively transmitted to an ice layer, ice layer melting is accelerated, and the deicing speed and effect are improved.

The control device comprises a control module, an ice melting power supply module, a boundary switch, a short circuit switch and an ice melting switch, the boundary switch, the short circuit switch, the ice melting switch and a protection switch are arranged on a high-voltage cable, and the control module sequentially drives the boundary switch, the short circuit switch, the ice melting switch and the protection switch to execute state switching through action instructions. The conduction control of the ice melting loop is realized; the control module integrates a finite element algorithm function, collects current, voltage and temperature distribution parameters in an ice melting loop in real time, and dynamically corrects ice melting current parameters through three-dimensional electromagnetic-thermal coupling field simulation; setting a parametric modeling unit, and calculating an optimal voltage regulation gear based on a heat balance equation and a Joule heat effect to realize adaptive voltage regulation; the demarcation switch, the short circuit switch and the ice melting switch are arranged, the effect of cable short circuit heating ice melting is achieved by sequentially controlling the on-off states of all the switches, finite element real-time simulation and parameterization voltage regulation decision are combined, and the cable ice melting efficiency, reliability and safety are remarkably improved.

The invention provides a deicing device for split conductors and a control method. The deicing device comprises a supporting assembly, an elastic impact assembly, a monitoring module and a control module. Wherein the supporting assembly is installed between any two branch lines of the split conductor, the elastic impact assembly is fixed on the supporting assembly, the impact direction of the elastic impact assembly faces any branch line, the monitoring module is fixed on any branch line, and the monitoring module is used for monitoring the icing condition of the branch line. The control module is fixed to the supporting assembly and electrically connected with the monitoring module and the elastic impact assembly, and when the monitoring module monitors that the branch line starts to be iced, the elastic impact assembly is adjusted to be in an elastic energy storage state; and when the monitoring module monitors that the icing condition on the branch line exceeds a preset threshold value, the elastic impact assembly in the elastic energy storage state is released to impact the split conductor for deicing, so that the purposes of automatic triggering of the deicing device and long-term stay line deicing are achieved, and the safety and stability of the power transmission line are ensured.

The invention discloses a power distribution network toughness improving method and system considering unmanned aerial vehicle deicing in an ice disaster scene, and belongs to the technical field of power systems, and the method comprises the steps: calculating the icing thickness and fault probability of each line through a pre-constructed icing thickness prediction model and a fault probability calculation model, and generating a seriously icing line set; calculating a multi-dimensional toughness evaluation index of the power distribution network in combination with a pre-constructed ice disaster scene power distribution network load change curve, and calculating a comprehensive toughness evaluation index; an optimal flight path and an operation time sequence of the unmanned aerial vehicle are generated, and the unmanned aerial vehicle is scheduled to execute deicing operation; generating a recovery strategy based on the real-time power distribution network state data and a pre-constructed dynamic recovery optimization model, updating the comprehensive toughness evaluation index, dynamically adjusting the weight coefficient distribution of the comprehensive toughness evaluation index based on an updating result, synchronously updating the target function weight coefficient of the dynamic recovery model, and iteratively executing the above steps to obtain the comprehensive toughness evaluation index. The comprehensive toughness evaluation index is continuously higher than the preset threshold value.

The invention discloses a remote-controlled power transmission line inspection device which comprises a tower, the upper end of the tower is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with an insulator, the top of the insulator is provided with a power transmission cable, the outer surface of the connecting rod is fixedly connected with a fixed base, and the top of the power transmission cable is slidably provided with an inspection device. According to the scheme, multi-section inspection is achieved, the problem that long-distance inspection cannot be achieved due to long-distance flight of an unmanned aerial vehicle and insufficient power is solved, meanwhile, a background can independently select one section of a power transmission cable for inspection, and the inspection efficiency is improved. Operation and management of the inspector are facilitated, active inspection is achieved, the location and position of a fault are found in the first time, the inspector can conveniently repair the fault in time, loss expansion is avoided, the position of the fault and hidden danger is rapidly found, and the inspection and maintenance efficiency is improved.

The invention relates to the technical field of overhead line system deicing, and discloses an intelligent deicing method and system for an overhead line system. The method comprises the following steps: firstly, acquiring ice layer monitoring data such as ice layer thickness distribution information, environment temperature information and wind speed information of a contact network area in real time; inputting the data into a simulation modeling tool, and constructing a three-dimensional ice layer distribution model of the overhead line system; judging whether deicing is needed or not according to matching of ice layer thickness distribution information in the model and a preset ice layer thickness threshold value mapping table; if yes, deicing equipment position parameters and deicing agent type parameters are extracted from a preset parameter database, and the deicing agent applying process is simulated in the three-dimensional model; and finally, outputting an ice layer fracture path, an ice melting range and deicing efficiency data, analyzing rationality, matching degree and effectiveness, and generating a parameter optimization instruction to adjust subsequent deicing parameters.

The invention provides a multifunctional hybrid emergency supporting device for online ice melting and electric energy management, which comprises a multifunctional active device connected to the head end of a line and a grounding transformer connected to the tail end of the line, the multifunctional active device comprises a first cascade H-bridge module K1, a first midpoint clamping module D1, a second cascade H-bridge module K2, a second midpoint clamping module D2, a third cascade H-bridge module K3, a third midpoint clamping module D3, a fourth cascade H-bridge module K4, a fourth midpoint clamping module D4, a first direct current split capacitor C1, a second direct current split capacitor C2, a first filter inductor L1 and a second filter inductor L2. The device is matched with the grounding transformer through the multifunctional active device to form a zero-sequence ice melting loop, and has the advantages of no influence on normal power utilization of a user, high equipment utilization rate and low cost.

The invention relates to the technical field of electric power ice melting, in particular to an electric power ice melting intelligent control method and system.The method comprises the steps that when it is detected that the current external environment meets the grounding knife switch opening condition according to meteorological parameters of a target line of an electric power ice melting system, a grounding opening instruction is generated; based on the grounding opening instruction and the line equipment state parameters, determining an optimal opening time point of the phase selection disconnecting link; an opening time sequence rule is generated according to the optimal opening time point, and a phase selection disconnecting link is controlled to execute opening operation according to the opening time sequence rule; determining a priority coefficient of the short circuit closing instruction; in the process of controlling the short-circuit disconnecting link to execute the closing operation according to the priority coefficient, if the ground wire and the wire are successfully connected in series, verifying the actual ice melting operation sequence to obtain an ice melting operation verification result; and based on the verification result of the ice melting operation, generating an ice melting operation optimization sequence by using a decision tree pruning algorithm. According to the invention, intelligent and accurate control of the electric power ice melting process is realized, and the influence of current oscillation on the system is effectively reduced.

The utility model relates to the technical field of cable deicing, and particularly discloses a vibration type cable deicing device based on unmanned aerial vehicle wire hanging, which comprises a rack, a walking mechanism, a deicing mechanism and a pressing mechanism, the eccentric rotating assembly comprises a fixed seat, a first driving device, an eccentric shaft, a deicing plate, a rotating shaft mounting seat and a fixed rotating shaft; the deicing plate is provided with a deflection part and a rotating part; during deicing, the distance between the two rotating parts can be adjusted to be small, the eccentric shaft is utilized to drive the deicing plate to periodically clamp or break ice on a cable in a vibration mode in the direction of the deicing channel, in cooperation with extrusion of the two rotating parts, an ice coating layer of the cable is efficiently broken in a vibration mode and then crushed, then the ice coating layer is separated from the cable under the action of gravity, and deicing can be achieved while walking is conducted. The deicing efficiency is high; and a pressing mechanism is further arranged, after wire hanging is completed, the auxiliary wheel can be driven to ascend, the upper end of the auxiliary wheel abuts against the lower end of the cable, and the stability of the cable deicing device during walking is improved.

The invention belongs to the technical field of cable equipment, and discloses a cable erection bridge structure which is technically characterized by comprising a vertical plate, two sets of bottom clamping discs are rotatably mounted on the side wall of the vertical plate, two sets of top clamping discs are arranged on the side wall of the vertical plate, and telescopic assemblies connected with the top clamping discs are arranged on the surface of the vertical plate. The surface of the bottom clamping disc and the surface of the top clamping disc are each provided with an annular first clamping groove, a cable body is installed between the bottom clamping disc and the top clamping disc through the first clamping grooves, the side wall of the vertical plate is provided with an adjusting mechanism matched with the cable body, and the adjusting mechanism comprises an adjusting disc, a positioning assembly and a driving assembly. Through mutual cooperation of the positioning assembly and the driving assembly, the adjusting disc can be conveniently controlled to move in the vertical direction, and when the adjusting disc reciprocates, accumulated snow on the surface of the cable body can be cleaned. When the height of the adjusting disc is adjusted, the tightness degree of the cable body can be adjusted.

The invention provides a catenary deicing machine capable of automatically crossing a dropper, which can cross a dropper main body on a catenary main body and comprises a rack, a walking mechanism capable of walking on the catenary main body is arranged on the rack, and a cleaning mechanism and two groups of mounting frames arranged at intervals are further arranged on the rack. A gap for a contact network body to penetrate through is formed between the two sets of installation frames, multiple sets of installation bases are fixedly arranged in the two sets of installation frames and are arranged in a staggered mode, multiple sets of movable bases installed in a sliding mode are arranged in the installation frames, first elastic pieces are arranged between the movable bases and the installation bases, and hanging wheels are arranged on the movable bases. And the change gear shields a gap between the two groups of mounting frames. According to the deicing machine, the droppers can be automatically avoided when the overhead line system main body is deiced, so that continuous deicing operation is realized, the deicing machine does not need to be disassembled and assembled again when the overhead line system main body passes through the droppers, and the practicability and the deicing efficiency of the deicing machine are effectively improved.