278results about "Trolley lines" patented technology

The application discloses a hanging rail type contact wire abrasion detection robot clamping and walking device, which realizes quick, automatic and reliable installation and locking of the detection robot on a narrow tunnel space and a Π-shaped busbar, and discards traditional heavy manual operation. The detection robot can automatically identify and smoothly pass through a pre-tightening bolt on the Π-shaped busbar, realizes uninterrupted continuous detection, overcomes the blockage of fixed obstacles, is not prone to be stuck, and improves the applicability of the overall device.

The utility model relates to a high-speed railway power supply contact line laying device which comprises a movable base, a traction device and an erecting device. The movable base is provided with a supporting seat, walking wheels and a first driving part. The traction device comprises a mounting frame, a cable tray, a rotating shaft, a second driving part and a tension monitoring system; the erecting device is composed of an elevator and an outgoing line guiding device. According to the device, accurate regulation and control of tension in the stringing process are achieved through the control device, the stability and consistency of wire laying are ensured, meanwhile, the device has the multi-stage braking function and the visual monitoring capacity, the construction efficiency and safety are effectively improved, the device adapts to complex working condition requirements, and the quality and reliability of high-speed railway contact wire laying are remarkably optimized.

The invention relates to the technical field of railway contact networks, in particular to an electrified railway anti-icing contact network and a control system.The device comprises a contact network wire and a brim flow guide structure arranged on the contact network wire in a sleeving mode; the upper part of the catenary wire is an arc-shaped surface, the middle part of the catenary wire is provided with a dovetail groove, and the lower part of the catenary wire is a conductive surface; the shape of the upper portion of the brim diversion structure is consistent with that of the upper portion of the contact network wire, the middle of the brim diversion structure extends towards the two sides to form brim-shaped diversion plates, and the brim-shaped diversion plates are used for guiding airflow to drive freezing rain water drops to slide towards the two sides so as to avoid a conductive surface; the brim-shaped flow guide plate is positioned below the dovetail groove; and after the cap-brim-shaped guide plate is sleeved on the overhead line system wire, the conductive surface can be in contact with the pantograph. Structural innovation and collaborative prevention and control logic are integrated, and the problems that an existing electrified railway anti-icing scheme is single, limited in function and insufficient in adaptability are solved.

The utility model relates to the technical field of railway catenary erection, and discloses a catenary carrier cable erection auxiliary tool which comprises a hoop used for being connected with a flat cantilever of a catenary in a clamped mode, an inverted L-shaped supporting arm fixedly connected to the top of the hoop and a pulley assembly hung on the supporting arm. The pulley assembly is positioned obliquely above a carrier cable seat on the flat cantilever; the pulley assembly comprises a wheel frame, a hook fixedly connected to the top of the wheel frame and a pulley rotationally connected to the lower portion of the inner side of the wheel frame, a notch is formed in the wheel frame, the pulley is lower than the notch, the carrier cable is erected on the pulley, and the hook is hung on the top of the supporting arm. When being used for mounting the carrier cable, the carrier cable does not need to bypass the end part of the flat cantilever from the lower part of the flat cantilever and then is mounted on the carrier cable seat, so that the moving distance of the carrier cable during mounting can be greatly shortened, and the carrier cable is more convenient and more labor-saving to mount.

The utility model discloses an adjustable AF line suspension anti-swing hanging column structure, which is installed on the top of a tunnel through bolt connection holes and is hinged to a base plate at the upper end and suspended to an AF line through an insulating expansion seat at the lower end. An adjustable length expansion support rod is arranged between the base plate and the hanging column to flexibly adjust the suspension height of the AF line and the distance between the AF line and a PW line to adapt to the error of a preset base. The insulating expansion seat and the expansion support rod cooperate with each other to realize length adjustment and locking, and a knob and a positioning table cooperate to ensure accurate operation.

This invention provides a static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform, belonging to the field of railway overhead contact line inspection technology. It includes a UAV body with a laser measuring device mounted on its top and a telescopic support mounted on its side. The UAV body includes a processor chip, and the laser measuring device is connected to the processor chip. After takeoff, the telescopic support secures the UAV, and the laser measuring device measures the overhead contact line. The measured data is transmitted in real time to the processor chip for processing and analysis, ultimately achieving high-precision measurement of the static parameters of the overhead contact line. By linking the top-mounted laser measuring device with the processor chip, it is possible to conduct inspections and parameter measurements on conventional railway lines outside of designated maintenance windows, achieving high-precision, non-contact distance or terrain measurement, suitable for complex environments, and significantly improving data acquisition efficiency.

The invention provides a rigid contact line reinforcing method, which comprises the following steps of: S101, detecting a contact line on a busbar to be detected, and confirming an abrasion area of the abraded contact line on the busbar; s102, reinforcing modules are installed on the two sides of the busbar; s103, reinforcing contact lines are fixed on the two sides of the busbar in a mirror image mode through a reinforcing module, and then the reinforcing contact lines are adjusted to be parallel to the abrasion contact lines; when the train runs, the top of the carbon sliding plate slides from the unworn position on the wear contact line to the reinforcing contact line and then slides to the unworn position on the wear contact line so as to avoid the wear area of the wear contact line. The problem that manpower and material resources are seriously consumed when an abraded contact line is integrally replaced is solved, and the operation convenience and efficiency of remedying the abraded contact line are improved.

This invention pertains to a cantilever for the overhead contact line system, suitable for working with the 1950 mm and 1600 mm interoperable pantographs. It delivers a more harmonious and stable dynamic response and also clear additional benefits in terms of the adjustment of the overhead contact line, both in the installation phase and in the maintenance phase, and as regards the renewal / replacement with this new cantilever of existing cantilevers that are installed and in service, given its design optimisation in terms of the number and types of parts used. The cantilever comprises top anchor (1), a cantilever tube (2), a registration tube (3), a registration tube strut (5) and a steady arm (4).

The invention provides a pin refilling robot system, and belongs to the technical field of pin refilling. The pin refilling robot system comprises a pin refilling operation robot; the unmanned aerial vehicle load platform is used for the unmanned aerial vehicle to hoist the pin supplementing operation robot; and the ground terminal is in wireless communication with the pin supplementing operation robot, and the ground terminal is used for receiving data of the pin supplementing operation robot and controlling the pin supplementing operation robot to perform pin supplementing operation on the power transmission line. According to the technical scheme of the invention, the live-line pin supplementing operation can be carried out, the power failure of the line is avoided, the power supply reliability of the power transmission line is improved, the defect elimination is not limited by a power failure plan, the operation efficiency is high, the defect can be eliminated in time, and the safety level of equipment is improved.

The utility model relates to a wire tightening device for mounting an elastic sling, and belongs to the technical field of railway overhead line system construction. The utility model aims to provide the wire tightening device for mounting the elastic sling, and solves the problems that an existing wire tightening device is heavy and the lengths of exposed sections of the elastic sling are difficult to unify. According to the technical scheme, the device comprises a base part, a line pressing device, a sliding part and a carrier cable clamping device, the base part is in a horizontally-arranged long strip shape, the line pressing device and the sliding part are horizontally and slidably connected to the base part, the line pressing device is located behind the sliding part, the front end of the line pressing device is connected with the rear end of the sliding part, and the carrier cable clamping device is connected to the rear end of the base part; the front end of the sliding part is an upwarped arc-shaped plate, the upper surface of the arc-shaped plate is a concave cambered surface, a receding groove facilitating installation of an elastic sling clamp is formed, and a hanging piece is fixed to the upper end of the arc-shaped plate. The elastic sling tightening device is used for tightening the elastic sling in a railway contact net system.

The utility model provides an overhead line system composite material cantilever device insulation connector comprising a first insulation double-lug assembly, a second insulation double-lug assembly detachably connected with the first insulation double-lug assembly, and a first locking assembly for locking the first insulation double-lug assembly and the second insulation double-lug assembly. A gap for insertion of a cantilever is formed between the first insulating double-lug assembly and the second insulating double-lug assembly, the second insulating double-lug assembly is provided with a matching through groove, and the inner wall of the matching through groove is provided with a matching through hole; the second locking assembly and the third locking assembly are arranged on the cantilever connecting pin shaft. By adopting the structure, the cantilever connecting pin shaft is fixed by adopting a double-locking structure. Connection is simpler, the angle is freer, and the weight is lighter. The risk of partial discharge of the composite material cantilever device of the overhead line system can be avoided, and the power supply safety and reliability of the overhead line system of the electrified railway are improved.

The invention relates to the technical field of construction of an overhead line system embedded channel in a tunnel, in particular to a double-shaft double-spring hinge type elastic fixator which comprises a base, a horizontal guide rod frame, two vertical guide rods, a hinge type movable clamping groove and two springs, and the base is provided with two vertical sleeves and two horizontal sleeves; the horizontal guide rod frame comprises two horizontal guide rods, and each horizontal guide rod is arranged in a horizontal sleeve of the base in a sliding manner; each vertical guide rod is arranged in a vertical sleeve of the base in a sliding manner; and each spring is sleeved on one vertical guide rod and is positioned between the base and the hinge type movable clamping groove. According to the fixing device, the pre-buried channel is directly welded or bound on the secondary lining reinforcing mesh through the elastic fixing device, so that the situation that holes are formed in a tunnel secondary lining trolley is avoided, and the trolley cannot be damaged; the fixing mode is rapid, line production does not occupy the construction time of the secondary lining trolley, the construction work efficiency and the accuracy of the installation position are improved, then the engineering construction quality is improved, and the construction period is shortened.

A vehicle power supply system includes a control contactor and at least first and second power contactors along a top side of a vehicle. The first and second power contactors receive different polarities of electrical power from an off-board power supply system to power the vehicle. The control contactor conducts a control signal indicative of whether the first and second power contactors are conductively coupled with the off-board power supply system. The first power contactor receives a positive polarity of the electrical power and the second power contactor receives a negative polarity of the electrical power while the vehicle has a first orientation relative to the off-board power supply system. The first power contactor receives the negative polarity and the second power contactor receives the positive polarity while the vehicle has an opposite, second orientation relative to the off-board power supply system.

An overhead line system short circuit test system comprises a short circuit connecting line, an installation device and an electric control device. The two ends of the short-circuit connecting line are connected with a contact line connecting mechanism used for being connected with a contact line and a rail connecting mechanism used for being connected with a rail respectively, the contact line connecting mechanism comprises a U-shaped line clamp and an insulation pressing block used for pressing the contact line on the inner side of the line clamp, and the insulation pressing block is connected with a power cylinder used for driving the insulation pressing block to move. The rail connecting mechanism comprises a clamping jaw used for clamping a rail, and the wire clamp and the clamping jaw are electrically connected with the short-circuit connecting wire. The installation device comprises a rail car used for transporting the short-circuit connecting line, and the rail car is provided with a lifting machine used for driving the contact line connecting mechanism to move and a medium supply mechanism used for providing a power medium for the power cylinder. The electric control device is used for supplying power to the test loop and monitoring electrical parameters. In the whole installation process of the short-circuit connecting line, a worker does not need to climb a line pole and a cantilever, the installation efficiency can be greatly improved, and danger is also avoided.

The invention relates to the field of railway construction, and provides a railway contact network bearing wire replacement construction method which comprises the following steps: S1, preparing construction before wire replacement; s11, breaking and dismantling the existing crimping type electric connecting wire clamp, and replacing the existing crimping type electric connecting wire clamp with a bolt type electric connecting wire clamp; s12, the old elastic crane is temporarily dismantled; s13, parameters of the existing anchor section and elastic hoisting tension are comprehensively measured; s14, the anchor section parameters are divided into 30 sections of anchor section supporting column parameters, and the 30 sections of anchor section supporting columns are anchor section supporting columns from the first anchor section supporting column to the third anchor section supporting column; s15, operation vehicle marshalling: marshalling constant tension vehicles according to construction requirements; s16, making a working vehicle operation plan, and moving the working vehicle to a specified anchor section support column according to a No.30 anchor section support column; s2, line changing construction is carried out; S21, a carrier cable is replaced; s22, replacing a contact line; s3, fine adjustment construction; s31, the catenary is finely adjusted; and S4, performing dynamic inspection to recover the normal speed. The method has the effects of formulating the path of the anchor section strut and the operation vehicle and ensuring the operation stability.

A catenary installation consist for construction of an overhead catenary system. The consist includes gondola-style cars with rails mounted along sidewalls thereof to enable wheeled apparatus to move therealong. The cars are configured for fabrication, storage, and installation of catenary arms as well as cable terminations. Wheeled lifting apparatus are disposed on several of the segments and can travel between cars to obtain materials and to reach desired installation locations. Movability longitudinally of the apparatus provides great latitude to crews for completing installation activities without need to move or precisely position the consist as a whole. Fabrication facilities enable construction of catenary arms on the consist as needed to meet design characteristics of particular installations. A crew-segment is also included and provides restrooms, shelter, and other needs for crew members to increase crew member comfort and time on site.

The application provides a kind of intelligent monitoring method and device for pantograph, it is related to train safety monitoring field, solve in the pantograph monitoring, ignore the quality irregularity reduction problem caused by contact pressure and temperature of pantograph, and ignore the technical problem of adaptive monitoring to pantograph;The method comprises: obtaining the target data of current train pantograph;Adaptively set monitoring frequency based on target data, obtain the monitoring data of current train pantograph according to monitoring frequency;Determine the temperature aging factor based on the temperature of pantograph, determine the characteristic temperature aging factor of current pantograph based on the historical temperature aging factor;Determine the wear factor based on the contact pressure of pantograph, determine the characteristic wear factor of current pantograph based on the historical wear factor, issue the maintenance notice of current pantograph based on characteristic temperature aging factor and characteristic wear factor;The application can improve the accuracy of pantograph health quality identification.

The utility model discloses an anti-drop cantilever structure for a railway contact network, which comprises a flat cantilever, an inclined cantilever and a support arm between the flat cantilever and the inclined cantilever, and the flat cantilever and the inclined cantilever are respectively connected to an H-shaped steel column through a base. The base comprises a bottom plate connected with an H-shaped steel column, the bottom plate is connected with two vertically-installed lug plates, a flat double-lug is arranged between the two lug plates, the flat double-lug is provided with a pin shaft hole, the pin shaft hole is connected with lug holes of the two lug plates in a penetrating mode through a pin shaft, and the flat double-lug is used for being connected with a cantilever. The end, close to the bottom plate, of the flat double-lug is connected with a fixing block, the fixing block is connected with a straight rod parallel to the pin shaft, the mounting lug plates on the two sides are provided with arc-shaped grooves, and the two ends of the straight rod penetrate through the arc-shaped grooves of the two lug plates respectively. According to the cantilever structure, hole wall crack propagation and brittle fracture caused by fatigue accumulation are effectively prevented, the service life of the cantilever structure is prolonged, and the safety is improved; and the problem that the cantilever is separated from the contact line due to overlarge side-sway amplitude can be avoided, and normal operation of a railway contact network system is guaranteed.

The invention discloses a carrier cable clamp which comprises a clamping part connected with a carrier cable and a hanging part connected with a dropper, the hanging part is provided with a mounting hole for the dropper to penetrate through, a wedge block capable of tightly wedging the dropper in the mounting hole is arranged in the mounting hole, and an elastic piece for driving the wedge block to keep a tightly wedged state is further arranged in the mounting hole; according to the carrier cable clamp with the structure, the dropper is wedged tightly through the wedge block, so that the dropper is convenient to mount and adjust in length, and stepless adjustment of the length of the dropper is realized.

A measurement vehicle (100) is provided with a first laser scanner (111) and a second laser scanner (112) that are used for measuring overhead wiring, and a first slide mechanism (115) and a second slide mechanism (116). When the measurement vehicle (100) travels on a road, the first slide mechanism (115) and the second slide mechanism (116) slide in the transverse direction to fit within the width of the vehicle, thereby placing the first laser scanner (111) and the second laser scanner (112) within the width of the vehicle. When the measurement vehicle (100) moves along a railway track to measure overhead wiring, the first slide mechanism (115) and the second slide mechanism (116) spread to the outside of the width of the vehicle to place the first laser scanner (111) and the second laser scanner (112) outside the width of the vehicle.

The invention relates to an apparatus (1) for mounting a functional device (10) on and / or demounting a functional device from an overhead line (7) of a rail track or an O-bahn bus track having grooves (30), wherein the apparatus (1) has the following: - a drone (3) having an aircraft engine, - a mounting device (13) which is designed to mount the functional device (10) on the overhead line (7) by means of at least one fastening clamp which engages in the grooves (30) in the fastened state, and / or a demounting device which is designed to demount the functional device (10) from the overhead line (7) by releasing the at least one fastening clamp, - a catching device (15) which is designed to restrict at least one degree of freedom of movement of the drone (3) during a flight when the overhead line (7) or the functional device (10) mounted on the overhead line (7) is in a catching range of the catching device (15).

The invention relates to an on-line ice preventing / melting method for a railway overhead line system powered by a star-delta transformer. The method comprises the following steps that the star-delta transformer is transformed; calculating corresponding required phase differences under different ice melting current values; the phase difference is used for judging the required transformer ice melting gear K at the moment; selecting a proper number of windings according to the K value in the third step; adjusting the number of turns of the corresponding winding of the transformer according to the winding turn value in the fourth step; and switching on the isolation switch of the partition post to melt ice. The method has the beneficial effects that the phase shifting function of the adjusted transformer is utilized, so that the traction power supply system forms circulating current to melt ice, normal operation of a train in extremely cold weather such as freezing rain is ensured, and large-area train shutdown caused by icing of a contact network is avoided.

The invention relates to a machine (1) for laying contact lines (8) and / or carrier cables (9) of overhead lines of a track (4), comprising: a machine frame (2) which can be moved on a track bogie (3); a wire storage disc support (11); a height-adjustable positioning roller unit (15); and a friction winch (13). According to the invention, the friction winch (13) comprises a drive body (17) around which an endless shoe chain (18) is wound, which shoe chain has shoe sections (21) for receiving the contact wire (8) and / or the carrier cable (9), such that a winding section (19) of the shoe chain (18) is spanned by a non-contact winding section (20) which is in contact with the drive body (17) by at least one turn. This makes the lateral displacement and tangential force transmission between the friction winch (13) and the contact wire (8) or carrier cable (9) independent of each other.

This utility model discloses an easy-to-install center anchor clamp for catenary cables, specifically relating to the field of railway electrical equipment technology. It includes a support frame with N-shaped grooves at both ends. Two arc-shaped blocks are rotatably mounted on the inner surface of the support frame, and a pressing bolt for pressing the arc-shaped blocks is threaded onto the outer surface of the support frame. This easy-to-install center anchor clamp for catenary cables employs a return spring design. In its natural state, the return spring keeps the arc-shaped blocks open, allowing for quick insertion of the catenary cable without additional tools, simplifying the installation process. During disassembly, simply loosening the pressing bolts causes the return spring to automatically release the arc-shaped blocks, facilitating inspection or repositioning of the catenary cable and significantly improving maintenance efficiency. The spacing of the mounting bracket can be adjusted using screws to adapt to different specifications of catenary cables and installation scenarios. The support frame and all components are made of weather-resistant materials, extending their service life.

The application discloses a reverse positioning type arm structure for a catenary, which comprises a horizontal arm and an inclined arm on an arm support, one end of the inclined arm is connected to the horizontal arm through an arm connector, a first support connector in the middle of the inclined arm is connected to a second support connector of the horizontal arm through an arm support, a lower end of the first support connector is connected to a horizontal positioning tube, the other side of the positioning tube is connected to the lower part of the arm connector through a positioning tube support, and positioners on both sides of the lower part of the positioning tube are connected to the lower part of a third support connector in the middle of the positioning tube.

This invention discloses a low-pressure casting and heat treatment process for high-strength and high-toughness aluminum alloy used in contact wire ratchet, belonging to the field of rail transit component manufacturing technology. The process uses AlSi7Mg0.3 alloy, obtaining high-purity aluminum liquid through two refining and modification treatments. In the low-pressure casting stage, a three-stage pressure control is adopted: the first stage is the liquid-raising stage, the second stage is the mold-filling stage, the third stage is the pressure-increasing and shrinkage-compensating stage, and finally, pressure holding and cooling are performed; followed by T6 heat treatment. This invention solves the casting problems of easy air entrapment in ratchet teeth and easy shrinkage porosity in the hub. The casting has a tensile strength ≥275MPa and a breaking load ≥94.5kN, meeting the requirements for a 2×10 contact wire ratchet. 5 Secondary fatigue load requirements.

An overhead line support structure 10 suitable for an overhead line equipment (OLE) installation (figure 1, 100). The overhead line support structure 10 comprises a support mast 20 having a first end

The utility model relates to a cantilever insulator replacement auxiliary device, which comprises a first connecting section, a second connecting section and a third connecting section, one end of the first connecting section and one end of the third connecting section are provided with sockets, the second connecting section comprises a first sliding rod and a second sliding rod, the first sliding rod is internally provided with a cavity, the second sliding rod is inserted into the cavity, and the second sliding rod is inserted into the cavity. The second sliding rod is in sliding connection with the first sliding rod, connecting ends are arranged at the ends, away from each other, of the first sliding rod and the second sliding rod, the two connecting ends are inserted into the inserting openings of the first connecting section and the third connecting section respectively, and a driving unit is installed on the first sliding rod and used for driving the second sliding rod to move axially.

This invention provides an integrated rapid repair device for railway power components, comprising a central working platform, a welding operation cabin mounted on the upper side of the central working platform, a welding operation platform mounted on the upper side of the welding operation cabin, and mobile cable working arms on both sides of the central working platform. Interconnecting frames are mounted on opposite sides of each mobile cable working arm. Each side of the welding operation cabin is equipped with a docking device for fixing and disassembling the adjacent interconnecting frames. This invention, through the cooperation of the docking devices and interconnecting frames, enables the rapid mounting and dismounting of the mobile cable working arms on the central working platform. When relocation is required, the mobile cable working arms can be lifted, and the central working platform can move at high speed to the fault area independently. Upon arrival at the fault area, the mobile cable working arms can be quickly released to commence maintenance work, shortening the positioning time for maintenance and improving equipment deployment speed.

The invention belongs to the technical field of contact line deicing, and particularly relates to an anti-icing and ice-melting device for a contact line, which comprises a line, a shell sleeved on the surface of the line, two solar panels fixedly connected to the inner surface of the shell, an outer layer, a middle layer and an inner layer arranged on the inner surface of the shell, and a metal film fixedly connected to the inner surface of the shell. A paraffin-based PCM, an organic acid PCM and a salt hydrate PCM are arranged on the surface of the metal film sleeve circuit and the inner walls of the outer layer, the middle layer and the inner layer of the solar panel respectively, two energy storage devices are arranged on the surface of the shell, each energy storage device comprises a fixing shell arranged on the surface of the shell in a sleeving mode, a protection device is arranged on the surface of each fixing shell, and each protection device comprises a protection shell arranged on the surface of the corresponding fixing shell in a sleeving mode. Solar energy is used as a main energy source of the whole device, self-sufficiency is achieved in cooperation with the energy storage device, dependence on external power supply is reduced, the operation and maintenance cost of contact line ice melting can be remarkably reduced through long-term use, and the stability of line power supply in winter is guaranteed.