511results 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 invention discloses a mobile contact network direct-current ice melting method, which comprises the following steps that: a monitoring vehicle and an ice melting vehicle are marshaled and run to a designated place, the two vehicles are de-marshaled, the ice melting vehicle is parked to the designated place, and the monitoring vehicle continues to run towards an ice melting section. The ice melting vehicle starts to electrically connect the wire clamp for construction after the contact network is subjected to electricity testing and grounding, and at the moment, the monitoring vehicle collects environment working conditions and icing state information in the ice melting section. And after construction of the electric connecting wire clamp and acquisition of monitoring information are completed, the monitoring vehicle sends an optimal ice melting current value to the ice melting vehicle, and the ice melting vehicle outputs an actual ice melting current after judging that the ice melting vehicle works normally. In the ice melting process, the monitoring vehicle reciprocates in the ice melting section, the icing degree of the contact network is monitored, and when it is monitored that icing disappears, an ice melting stopping instruction is sent to the ice melting vehicle. After ice melting is finished, the contact network is subjected to electricity testing and grounding at the ice melting vehicle, then the electric connecting wire clamp is removed, and the monitoring vehicle runs towards the ice melting vehicle. The technical problems that an existing overhead line system electric heating ice melting device is poor in mobility and low in utilization rate can be solved.

A three-rail power supply system includes a power supply having positive, negative, and neutral terminals, a rail system having a power supply end and a termination end, and an asymmetric resistor network. The rail system includes a positive rail, a negative rail, and a ground rail coupled to the positive terminal, the negative terminal, and the neutral terminal, respectively. The negative rail is disposed parallel to the positive rail. The ground rail is disposed in parallel to, and between, the positive rail and the negative rail, and is electrically grounded at a plurality of intervals between the power supply end and termination end. The asymmetric resistor network includes two pairs of resistors asymmetrically coupled to the rail system at the power supply end and termination end, and is configured to limit a fault current through a faulty connection in response the positive, negative, and / or ground rails experiencing the faulty connection.

The invention discloses a clamping and walking device of a rail-mounted contact line abrasion detection robot, which realizes rapid, automatic and reliable installation and locking of the detection robot in a narrow tunnel space and on an n-shaped busbar, and abandons traditional heavy manual operation. The detection robot can automatically recognize and stably cross the pre-tightening bolts on the n-shaped busbar, uninterrupted continuous detection is achieved, blocking of fixed obstacles is overcome, clamping stagnation is not prone to occurring, and the applicability of the whole device is improved.

Dynamic energy transfer (DET) systems are costly and time-consuming to install. Accordingly, an installation system is disclosed that comprises stowage for rail segments and poles, two strategically positioned cranes, and / or strategically positioned platforms, to enable less expensive and faster installation of the various components of a DET system. Installation, utilizing the installation system, can significantly decrease the cost of installation, while increasing the rate of installation and maintaining safety.

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 invention relates to a device (1) for mounting and / or dismounting a functional device (10) on / from an overhead electrical line, in particular on / from an overhead line (7) of a railway or trolleybus route, wherein the device (1) comprises the following: - a drone (3) with a flight propulsion system, - a mounting device (13) configured to mount the functional device (10) on the overhead line, and / or a dismantling device configured to dismantle the functional device (10) from the overhead line, - a capture device (15) designed to restrict at least one degree of freedom of movement of the drone (3) during a flight when the overhead line or the functional device (10) mounted on the overhead line is located in a capture area of ​​the capture device (15).

The present invention relates to a method for operating a current collector (10, 33), in which a positioning device (13, 56) moves a contact strip (14, 17, 27) relative to a contact wire and presses the contact strip against the contact wire using a pressing force to reach a sliding contact position, and a drive element (73) and / or a spring element (74) of the positioning device generate the pressing force on the contact strip. The current collector has a power supply unit (50) and a measurement unit (36, 43, 53, 58) having a measuring device (38, 44, 59), and at least two sensors (47, 48) of a sensor element (46) are provided, the power supply unit (50) generates at least the electrical energy required to power the sensor elements, each of the sensors outputs a measurement value, and a processing element (37, 49) processes the measurement value and correlates the measurement value with each other to determine a characteristic value representative of the operating state of the current collector and / or the contact wire. The present invention also relates to a current collector and a monitoring system.

The present application relates to the technical field of railway engineering, and provides a load cable tension compensation control method and system based on multi-sensor fusion, which solves the problems of unstable control effect, insufficient system robustness and adaptability. The method comprises the following steps: obtaining the tension change detected by a strain sensor and the spatial vibration trajectory detected by an acceleration sensor during the dynamic vibration process of the load cable; predicting the target deformation damping range required by the adjustable mechanical buffer device at the anchoring end of the load cable; generating the pulse width and pulse interval corresponding to the deformation damping correction amount according to the tension change, the spatial vibration trajectory and the target deformation damping range; and adjusting the deformation damping parameters of the adjustable mechanical buffer device according to the pulse width and pulse interval, so that the tension fluctuation amplitude converges to the preset fluctuation threshold interval. The present application realizes accurate perception and adaptive compensation of the load cable tension fluctuation, and improves the response speed, stability and environmental adaptability of the control system.

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.

The invention discloses an arch cantilever type rigid contact network suspension structure, and belongs to the technical field of rigid contact networks. The arch-shaped cantilever type rigid contact network suspension structure comprises a cantilever base, a cantilever insulator, an arch-shaped cantilever, a busbar base and a busbar. The cantilever base is used for being fixed to the tunnel wall, one end of the cantilever insulator is installed on the cantilever base, the arch-shaped cantilever comprises a connecting section and a supporting section which are connected with each other, one end of the connecting section is coaxially connected with the other end of the cantilever insulator, the cantilever insulator and the connecting section are obliquely arranged, the connecting section is parallel to the tunnel middle rail surface, and the supporting section is parallel to the tunnel middle rail surface. The busbar base is fixed at one end of the supporting section back to the connecting section, and the busbar is fixed on the busbar base. According to the arch-shaped cantilever type rigid contact network suspension structure provided by the embodiment of the invention, the rigidity of a suspension point can be relatively small, the non-uniformity of the rigidity between the midspan of a contact network and the suspension point is relatively small, and the height of the whole structure in the vertical direction is relatively small.

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.

The application discloses a kind of bite anti-disengagement type butterfly fixed support, the locking block of first connecting unit top is connected with the locking hole in the central force cable seat, the bite groove below locking block is connected with the bite hook of second connecting unit, the limit hole below bite groove is matched with bite hook, first installation part is arranged below limit hole, second installation part is arranged below bite hook, locking hole side wall is symmetrically provided with locking groove, locking groove is matched with the protruding place of both sides of locking block, annular fixing table is symmetrically provided between locking groove in the upper part of locking hole, locking groove is matched with the lower part of T-shaped locking rod, the central force cable seat is provided with first placing groove, and the second placing groove on the cover plate of central force cable seat is symmetrically arranged with first placing groove.The application uses the above-mentioned structure of a kind of bite anti-disengagement type butterfly fixed support, uses the connection mode of bite hook and bite groove, greatly reduces the use amount of bolt, and when catenary is used, stability is good and safety factor is high.

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.

To provide a wedge extraction device which enables any operator to easily carry out work irrespective of skills of an operator, and with no possibility of damaging a metal fitting.SOLUTION: A wedge extraction device 1 comprises: an abutment member 2 annularly disposed to abut at a bottom surface against an upper end surface 12a of a connection part 12 of a section insulator 11; a pair of fastening members 3 superposed on the abutment member 2 to face each other so as to grip a projected part 14c of a wedge 14 from the connection part 12; a fastening bolt 4 that fastens the fastening members 3 to each other in a direction orthogonal to the axis of the wedge 14 so as to grip the projected part 14c of the wedge 14; and push bolts 5 that penetrate the fastening members 3 through the wedge 14 in the axis direction, abut at the tips against a top surface of the abutment member 2, and separate the fastening members 3 gripping the wedge 14 from the abutment member 2 through screwing-in.SELECTED DRAWING: Figure 1

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 utility model relates to the technical field of locking structures, and discloses a constant-tension spring compensation device locking structure which comprises a constant-tension spring compensation device body, a constant-tension spring compensation device and a locking device. A locking assembly is arranged on one side of the wire groove wheel. When the compensation line is broken, the line groove wheel rotates clockwise under the action of an internal spring so as to drive a main shaft to rotate and drive a driven wheel to rotate synchronously through a transmission belt, and meanwhile, a second bevel gear rotates under the meshing action of a first bevel gear and drives a threaded rod on the top to rotate; through the thread action of the threaded rod between the locking block and the limiting action of a sliding groove in the constant tension spring compensation device body on the locking block, the locking block is driven to move upwards, the top of the locking block is pushed into the bottom of the ratchet wheel, and therefore the ratchet wheel is clamped and prevented from continuously rotating, no electric element participates in the whole process, and the constant tension spring compensation device is simple in structure, convenient to use and practical.

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.

By incorporating a semi-supervised anomaly detection method using normal data and a small amount of anomaly data, a device for detecting anomalies in overhead contact line fittings and a method for detecting anomalies in overhead contact line fittings are provided that effectively utilize a small amount of anomaly data acquired in actual operations. Provided are a camera 3 that is mounted on the roof of a vehicle 2; a storage device 5 that stores image data output from the camera 3; a learning processing unit 9 that learns an anomaly detection model by semi-supervised anomaly detection learning using one-hot expression index image data that are obtained by converting the image data; and a data processing unit 7 that performs anomaly determinations by using the anomaly detection model.

The utility model discloses an urban rail transit dropper adjusting device which comprises a double-carrier-cable clamping ring, the lower portion of the double-carrier-cable clamping ring is connected with an eyebolt, the eyebolt is detachably connected with one end of a bidirectional adjusting bolt, the other end of the bidirectional adjusting bolt is detachably connected with one end of a first adjusting chain, and the other end of the first adjusting chain is detachably connected with the other end of a second adjusting chain. The first adjusting chain is also detachably connected with the second adjusting chain; the tail end of the second adjusting chain is provided with a double contact wire clamping ring. According to the utility model, the dropper is subjected to force unloading through the arrangement of the adjusting chain, and a traditional operation method that a contact line is continuously lifted by manpower is replaced; the height of the dropper is adjusted by adjusting the position, hung on the first adjusting chain, of the second adjusting chain, the height of the contact line and the height of the carrier cable are accurately adjusted through the two-way adjusting bolt, and accurate adjustment of the carrier cable and the contact line is guaranteed.

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.