267 results about "Contact wire" 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 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.

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.

A miniature ice melting device for a high-voltage line comprises an ice melting body, a span string crossing part, an anchor section crossing part, a power source and power supply module, an electric energy obtaining module and a deicing driving module, and is used for obtaining electric energy from a contact line of a railway contact network through the electric energy obtaining module and providing the electric energy for ice melting work of the ice melting body. The deicing driving module and the power supply and power supply module are used for pushing the high-voltage line miniature ice melting device to advance on a contact network, the span string crossing is used for passing through a contact network dropper and a positioner, and the anchor section crossing is used for enabling the high-voltage line miniature ice melting device to smoothly pass through a contact network anchor section joint. The miniature ice melting device for the high-voltage line can continuously deice in a reciprocating manner for a long time in an electric split phase, and meanwhile, the anchor section can move to a catenary bracket led out from a non-working branch of the catenary in advance when a motor train unit or an electric locomotive passes through, so that the influence of deicing equipment on normal operation of the train is avoided, and the working efficiency is improved. The miniature ice melting device for the high-voltage line can save a large amount of manpower and material resources for deicing, and meanwhile, the miniature ice melting device for the high-voltage line can also be used for deicing on other high-voltage lines through simple transformation.

The invention belongs to the technical field of defect detection, particularly relates to a railway contact line defect detection method based on eddy current, and aims to solve the technical problem that the signal decomposition effect is unstable due to the fact that an existing method is difficult to adapt to dynamic changes of geometrical characteristics of a contact line in different sections. The detection method comprises the following steps: S1, generating a composite excitation signal; s2, mapping the response impedance signal and the background magnetic field distribution data to an instantaneous curved surface coordinate system to obtain time-space reference unified multi-modal sensing data; s3, extracting an extreme value of the local surface curvature as a third type of defect feature; and S4, constructing a probability graph model which takes the first, second and third defect features as input and takes defect types and severity levels as output. According to the method, the type and the grade of the defect are identified, the uncertainty of the diagnosis result can be quantitatively evaluated, and the accuracy, the robustness and the reliability of detection are improved.

The utility model discloses a multi-contact line-to-board connector, and belongs to the technical field of connectors. A multi-contact line-to-board connector comprises a plug and a socket which are matched with each other, and further comprises a pair of first conducting strips which are arranged in the socket, contact elastic pieces are fixedly arranged at one ends of the first conducting strips, a connecting groove is formed between the contact elastic pieces, a second conducting strip is arranged in the plug, and the outer walls of the top and the bottom of the second conducting strip abut against the contact elastic pieces; according to the utility model, the pair of first conducting strips with the contact elastic sheets are arranged in the socket, the connecting grooves with small openings and large interiors are formed between the contact elastic sheets, reliable connection between the second conducting strips and the first conducting strips can be ensured under the elastic action of the contact elastic sheets, and due to the elastic effect of the connecting grooves, the reliable connection between the second conducting strips and the first conducting strips can be ensured after multiple times of plugging. The compact effect between the second conducting strip and the connecting groove can still be kept, the situation of loosening or falling off is reduced, and the reliability and stability during use are guaranteed.

The invention discloses an automatic online and offline device for a contact line crawling robot, and relates to the technical field of contact lines, the automatic online and offline device comprises a contact line body, a crawling robot body is arranged on one side of the contact line body, and a sliding rod assembly is arranged between the contact line body and the crawling robot body; a sliding seat is arranged at the bottom of the crawling robot body, a connecting seat is fixedly connected to the top of the sliding seat, the top of the connecting seat is fixedly connected with the bottom of the crawling robot body, the sliding rod assembly comprises a hook, the hook is slidably connected to the contact line body, and a first hinge is hinged to the bottom of the hook. The contact line crawling robot can be automatically loaded and unloaded, the automation degree of a whole set of products is improved, the whole set of operation process can be completed through single-person operation, and the purposes of accurate positioning, stable operation and safe operation in the loading and unloading process of the robot are achieved. Convenience of operation in the on-line and off-line process of the machine is improved, and the labor intensity of operation personnel is reduced.

The utility model discloses an antiskid device and gateway equipment, and relates to the technical field of communication equipment. The device comprises a cover plate, a magnetic column, a reset spring and a coil. The cover plate is fixedly connected with an anti-skid base of the electronic equipment, one end of the magnetic column penetrates through the anti-skid base, and the magnetic column is movably connected with the anti-skid base. The reset spring is arranged on the magnetic column in a sleeving mode and located between the magnetic column and the anti-skid base, and when the reset spring is in a compressed state, the other end abutting against the magnetic column is in surface contact with the cover plate. The coil is fixed on an equipment bottom shell of the electronic equipment, and the coil is electrified to generate a magnetic field to attract the magnetic column, so that the antiskid base and the equipment bottom shell are fixedly connected. Therefore, the coil is electrified to adsorb the magnetic column, the connection firmness between the anti-skid base and the equipment bottom shell is ensured, and the equipment main body of the electronic equipment is prevented from sliding off from the anti-skid base to be damaged.

The application discloses a rigid contact net self-adaptive polishing control method and system, belongs to the technical field of track traffic power supply equipment maintenance, obtains the pantograph-catenary action historical data of each position along the busbar direction of the contact net, and constructs a contact wire damage index distribution curve; based on the damage index, a high damage interval is identified, roughness, corrugation amplitude and oxidation thickness parameters are extracted, a damage intensity vector is constructed, and a fuzzy comprehensive evaluation method is used to calculate the damage level score of each position; according to the scoring results, a preset polishing strategy library is matched, corresponding polishing wheel combinations, rotating speeds and contact pressures are determined, and a control parameter set is generated; the polishing device dynamically adjusts the working state according to the control parameters in the running process, and the method realizes the whole-process self-adaptive closed-loop control of state recognition, strategy decision, execution control and quality feedback of the contact wire polishing operation.

This invention discloses a method for detecting abnormal states of railway contact wire bolts, comprising: S1, acquiring contact wire bolt state monitoring images and performing cropping preprocessing to obtain image blocks; S2, detecting the preprocessed image blocks to obtain bolt targets; S3, classifying the bolt targets in the image blocks output in step S2 using a classification network to obtain the bolt target state; This invention can quickly and accurately detect abnormal states of bolts, improve the average detection rate of bolt positioning and the average identification accuracy of bolt defects, and reduce manual labor intensity.

The application discloses a contact line abrasion measurement method of an intelligent contact network inspection robot, and relates to the technical field of flexible contact network abrasion measurement. The method comprises the following steps: S1, collecting original point cloud data of the flexible contact network; S2, using a circular arc search method based on noise suppression to extract a contact line point cloud profile in the original point cloud data of the flexible contact network; S3, performing profile matching on the contact line point cloud profile and a corresponding contact line standard point cloud profile in a discrete template library; wherein the discrete template library comprises contact line standard point cloud profiles of different specifications, and the contact line comprises standard circular contact lines and non-standard circular contact lines; and S4, measuring the contact line abrasion by using the contact line point cloud profile after profile matching and the contact line standard point cloud profile. The method can continuously detect the change of the wire abrasion, instead of only measuring at specific points, which is helpful for comprehensively understanding the state of the wire.

The utility model discloses a tunnel contact network suspension arm which comprises a vertical rod, three fixing sleeve pieces are arranged on the outer surface of the vertical rod in a sleeved mode, damping structures are arranged on the outer surfaces of the two fixing sleeve pieces at the bottom, and a first supporting rod and a second supporting rod are arranged on the sides, away from the vertical rod, of the two damping structures. The damping structure comprises an oblique angle hinge frame, a connecting block is fixedly installed on one side of the oblique angle hinge frame, a damping spring sleeve piece is fixedly installed on one side of the connecting block, and the first supporting rod is connected with the side, away from the connecting block, of the damping spring sleeve piece. One end of the second supporting rod is connected with the side, away from the connecting block, of the other damping spring kit. According to the tunnel overhead line system suspension arm, the first supporting rod and the second supporting rod on the fixing sleeve piece are connected and supported through the damping spring sleeve piece, the connecting block and the bevel angle hinge frame, so that the stability of the suspension arm and the effect of protecting an overhead line system wire on the suspension arm through flexibility provided by the damping spring sleeve piece are achieved.

This utility model discloses a linkage-limiting contact network compensation pulley system, which includes a fixed pulley system, a movable pulley system, a compensation rope, and a wedge-shaped clamp. Its innovation lies in the symmetrical connection of two sets of foldable steel belt mechanisms between the pulley shafts of the fixed-side linkage wheel of the fixed pulley system and the movable-side linkage wheel of the movable pulley system. These mechanisms consist of long and short connecting plates hinged together by connecting plate rivets and connected into a rigid frame by a spacer bolt assembly. This achieves forced synchronous deflection between the fixed and movable pulley systems, effectively preventing the compensation rope from jumping out of its groove and from wearing. By setting backstop blocks on the fixed plates of the fixed and movable pulleys, which cooperate with the foldable steel belt mechanisms, mechanical hard limits are formed at the extension and folding limit positions, effectively preventing overtravel. Its high structural integration significantly improves the safety of the compensation system operation.

The invention discloses an external non-contact linear position sensor, a detection method and a piston cylinder, and belongs to the technical field of position sensors. The sensor comprises a permanent magnet and a Hall sensor array. The permanent magnet is fixed on the linear moving part and moves along with the linear moving part; the Hall sensor array is fixed on the fixed base body and is linearly arranged along a moving path to form a continuous magnetic field induction interval. The interval is used for sensing the magnetic field change of the permanent magnet and outputting a signal to represent the position of the linear moving part. The detection method comprises the steps of collecting array signals in parallel, performing filtering and calibration compensation, positioning a signal peak channel, and calculating the accurate center position of the permanent magnet through an interpolation algorithm based on a peak value and an adjacent channel signal. The piston cylinder is equipped with the sensor. According to the non-contact magnetic induction principle, the problems that an existing sensor is difficult to install and maintain, prone to abrasion, high in cost and the like are solved, and the sensor has the advantages of being simple in structure, long in service life, high in reliability and easy to standardize and reform.

The invention discloses a contact network positioning wire clamp coupling experiment device and an experiment method, relates to the technical field of contact network testing, and solves the technical problem that the actual clamping state of a positioning wire clamp cannot be well simulated due to the fact that the performance research of an existing positioning wire clamp mostly focuses on static mechanical properties or corrosion behaviors in a single environment. The device comprises a positioning wire clamp; two contact line fixing bases are arranged on the positioning substrate, and the two ends of the contact line are connected with the two contact line fixing bases respectively; the lower end of the upper clamping rod is connected with the upper end of the positioning wire clamp, and the upper end of the upper clamping rod is connected with a fatigue testing machine; the upper end of the lower clamping rod is detachably connected with the positioning base plate, and the lower end of the lower clamping rod is connected with a fatigue testing machine; the horizontal load applying module is arranged on the positioning substrate and is connected with the positioning wire clamp; the device has the advantages of being capable of accurately simulating the actual mechanical state of the positioning wire clamp and the like.

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.

This invention provides a constant power heating cable for rail transit. The constant power heating cable for rail transit includes: a cable body; a conductor core located at the innermost layer of the cable body; an inner insulation layer disposed on the outer surface of the conductor core; a heat insulation buffer layer disposed on the outer surface of the inner insulation layer; and a heating element disposed on the outer surface of the heat insulation buffer layer. The constant power heating cable for rail transit provided by this invention can flexibly adjust the heating mode of the heating element through a power supply control device according to the heating requirements of different parts of rail transit such as turnouts, contact wires, and signal cables, without the need for additional heating equipment. It adapts to complex working conditions, resulting in more reasonable energy consumption. The heating element can switch working modes as needed, avoiding ineffective energy consumption. While ensuring anti-freezing and anti-condensation effects and uniform heating, it significantly reduces energy consumption compared to traditional single-heating-core structures, achieving the dual benefits of energy saving and practicality.

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.

Electric machine (10) comprising a stator and a rotor mounted therein so as to be rotatable about a central longitudinal axis (14) of a motor shaft of the electric machine (10) and a slip ring module (12) connected to the motor shaft, which is rotationally fixed to the rotor and rotatable relative to a slip ring (24) of the electric machine (10) and has a wire guide channel (18, 38), wherein - a first section (20) of the wire guide channel (18, 38) extends from the slip ring (24) in an axial direction parallel to the central longitudinal axis (14) and a subsequent second section (22) of the wire guide channel (18, 38) extends radially outwards to the wire outlet (32), characterized in that - a contact wire (26, 40) for electrically connecting a rotor winding to the slip ring (24) is guided through the wire guide channel (18, 38) from the latter to a wire outlet (32) of the slip ring module (12), - in the second section (22) an elastic sealing element (42, 54) surrounding the contact wire (26, 40) is arranged to seal the wire guide channel (18, 38) against the ingress of a lubricant at the wire outlet (32), - the sealing element (42, 54) is designed as a sealing plug (42) which is arranged in the second section (22) of the wire guide channel (18, 38) and surrounds the contact wire (26, 40) in the area of ​​the second section (22), - the sealing plug (42) in the second section (22) is fixed by a thermosetting molding compound (52) which at least in the first section (20) surrounds and fixes the contact wire (26, 40).

According to the contact network abrasion detection equipment and method, the detection equipment can achieve full-automatic detection on contact network abrasion based on line scanning laser, contact line area data are collected through a high-speed and high-precision line structure laser sensor, a complete contact network three-dimensional model is formed, millimeter-level three-dimensional modeling of a contact line contour is achieved, and the contact network abrasion detection efficiency is improved. Under the condition of rapid walking, space coordinate calculation of a contact network strut and the position of a positioner suspension point are automatically completed, automatic aiming and positioning are achieved, measurement of geometric parameters of a contact network without manual participation is achieved, the comprehensive precision is high, and the measurement efficiency is high.

The utility model relates to a load switch structure used in an electricity meter, and belongs to the technical field of electronic control devices. The electromagnetic relay comprises a base, a cover plate, a static reed, a coil framework, yokes, a support frame, a magnetic steel combination, a movable contact system, a torsion push rod and a connecting hook, the base is matched with the cover plate, two ends of the coil framework are connected with the yokes, the magnetic steel combination is contacted with the yokes, the coil framework and the magnetic steel combination are fixed on the base, the static reed is arranged on the base, and the support frame is arranged on the support frame. The supporting frame is connected with the base, the movable contact system is matched with the static reed, and the movable contact system is movably arranged on the base; a magnetic steel push handle piece is arranged on the magnetic steel combination, one end of the connecting hook is matched with the torsion push rod, and the other end of the connecting hook is matched with the magnetic steel push handle piece. The magnetic circuit breaker is reasonable in structural design, safe and reliable, reduces magnetic circuit holding force, increases elastic stability of the elastic sheet, is convenient to install, and meets use requirements.

The invention discloses an overhead line system electric connecting line vibration fatigue test device, which relates to the technical field of railway overhead line systems, and comprises a high-speed railway overhead line system simulation support and a reciprocating lifting mechanism, and an electric connecting line is connected between a carrier cable and a contact line on the high-speed railway overhead line system simulation support. A reciprocating lifting mechanism is arranged below the connecting position of the electric connecting wire and the contact wire, a bearing block is arranged at the top of the reciprocating lifting mechanism, and the bearing block can make contact with or be away from the connecting position under the action of the reciprocating lifting mechanism. The high-speed railway overhead line system simulation support is used for simulating the real working condition of the electric connecting line, the reciprocating lifting mechanism is used for simulating the working condition of the locomotive pantograph running on the line, the corresponding fatigue life test can be carried out on the service state of the electric connecting line closer to the actual working condition, more accurate experimental data can be obtained, and the test efficiency is improved. And the service life of the electric connecting wire in the corresponding service environment can be accurately predicted.

A memory device includes a memory cell comprising a bottom electrode, a top electrode, and a dielectric layer interposed between the bottom electrode and the top electrode. The bottom electrode has a first width W1. The top electrode has a top surface that has a second width W2 between two edges of the top surface. The memory cell has a first height H1 extending from a lower surface of the bottom electrode to the top surface of the top electrode. The memory device further includes a top contact wire coupled to the top electrode. The top contact wire has a top surface that has a third width W3, a second height H2 at a location between two adjacent memory cells, and a third height H3 extending between the top surface of the top contact wire and the insulating layer, where W1>W3>W2 and H2>H1>H3.

The invention relates to the technical field of cable crimping, and discloses a cable intermediate joint hydraulic crimping die which comprises a hydraulic crimping mechanism arranged on a base, a peeling pipe is rotatably connected above the base, a rotating mechanism for driving the peeling pipe to rotate is arranged at one end of the peeling pipe, and a cutting opening is formed in the outer wall of the peeling pipe. A cutting mechanism is arranged in the cutting opening, a rotating mechanism is arranged on the outer wall of the peeling pipe, and the rotating mechanism and the cutting mechanism are located in the same vertical plane. According to the invention, through the cooperation of the shallow ring cutting of the cutting mechanism, the radial gap formed by pressing the balls and the secondary ring cutting of the stripping pipe, the cable sheath is stripped without damage under the condition that the cable core is not contacted; a telescopic mechanism and a ball force application structure remarkably improve the ring cutting precision, and a wire core is prevented from being scratched; the compounding effect of the molting belt and the driving roller can completely pull out the outer skin and promote the wire cores to be automatically gathered together, so that the subsequent crimping efficiency is improved.

A machine having a function of measuring a workpiece comprises a table to which the workpiece is attached, a measurement probe that detects contact with the workpiece, a linear feed shaft that moves the table and the measurement probe relative to each other, a manual pulse generator that inputs a movement command to move the workpiece and measurement probe relative to each other to the feed shaft, a storage unit that stores measurement point information, which is the movement direction and coordinates detected when the measurement probe contacts the workpiece, a display unit that displays the measurement point information stored in the storage unit, and a measurement control device that creates a measurement program on the basis of the measurement point information selected by an operator and executes the measurement program to measure the workpiece.

A contact device (210) for a power electronics module (140) for contacting two electrical conductors (215, 220) with different potentials, comprising a carrier (235) made of an electrically non-conductive material in which a first contact line (300) and a second contact line (305) are integrated, wherein a first contact spring (240) of the first contact line (300) and a second contact spring (245) of the second contact line (305) are arranged projecting on the carrier (235), wherein the contact springs (240, 245) are arranged and configured such that, in the assembled state of the contact device (210), they hold the conductors (215, 220) between them and are biased against each other, wherein each contact spring (240, 245) contacts one of the conductors (215, 220).Furthermore, the invention relates to a power electronics module (140) for an electric drive axle (100) and an electric drive axle (100) for a vehicle (105) that is at least partially electrically driven.

A device applies flowable antifreeze to a contact wire of an overhead line, from which an electrically driven vehicle draws off electrical energy via a current collector. The device includes: a holder extending from the vehicle in a direction of the contact wire; a transfer roller, oriented horizontally and transversely with respect to a vehicle longitudinal axis, axially-rotatably coupled to the holder, and capable of contact with the contact wire; and an open container for the antifreeze below the transfer roller and partially enclosing a circumferential surface of the transfer roller so that the transfer roller wettable with the antifreeze supplied via the container via a rotational movement. The device controls the rotational movement configured to limit a circumferential speed of the transfer roller so that the transfer roller rotates more slowly than in a case of sliding-free rolling along the contact wire.

A transducer assembly (300) for a vibrating meter having meter electronics (20) is provided. The transducer assembly (300) comprises a keeper portion (401) comprising a keeper plate (402). A magnet portion (301) comprises a coil bobbin (305) and a coil (309) wound around the coil bobbin (305). A magnet (313) is coupled to the coil bobbin (305). The keeper plate (402) is prevented from contacting the coil bobbin (305).

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.