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650 results about "Track gauge" patented technology

In rail transport, track gauge or track gage is the spacing of the rails on a railway track and is measured between the inner faces of the load-bearing rails. All vehicles on a rail network must have running gear that is compatible with the track gauge, and in the earliest days of railways the selection of a proposed railway's gauge was a key issue. As the dominant parameter determining interoperability, it is still frequently used as a descriptor of a route or network.

Posture-adjustable crawler chassis and control method

The invention belongs to the technical field of crawler agricultural mechanical equipment, and discloses a posture-adjustable crawler chassis and a control method.The posture-adjustable crawler chassis comprises a chassis frame, a driving transmission assembly, a posture adjusting assembly, a crawler walking wheel assembly and a posture detecting assembly; the output end of the track gauge auxiliary assembly is in universal transmission connection with the track walking wheel assemblies, the posture adjusting assembly is arranged below the chassis frame, one side of the posture adjusting assembly is connected with the track walking wheel assemblies, the posture detecting assembly is arranged on the chassis frame and the track walking wheel assemblies, and the two ends of the track gauge auxiliary assembly are installed on the track walking wheel assemblies on the two sides respectively. When the crawler encounters the situation that the road surface gradient is large or the road surface fluctuation is large, the posture position of the current chassis frame is detected through the posture detection assembly, and the ground clearance or the gravity center position of the chassis frame is adjusted by calculating and controlling the posture adjusting assembly. Meanwhile, the bottoms of the crawler walking wheel assemblies are always attached to the ground by driving the transmission assemblies, and the adhesive force of the crawler to the ground is improved.
Owner:ZHEJIANG UNIV OF TECH

Multi-unmanned aerial vehicle cooperative surveying and mapping method and system for areas along railway

The embodiment of the invention provides a multi-unmanned aerial vehicle cooperative surveying and mapping method and system for areas along a railway, and belongs to the technical field of railway surveying and mapping. The method comprises the steps that the unmanned aerial vehicle collects monitoring data in the flight process; the relative position and posture between the aircrafts are dynamically adjusted, and an observation configuration with variable baseline parameters is constructed; laser ranging modules carried by the unmanned aerial vehicles are controlled to execute synchronous ranging operation, and multiple sets of laser point cloud data covering the railway structure area are generated; performing coordinate registration and fusion on the collected laser point cloud data, and combining position information and attitude information of each unmanned aerial vehicle; and extracting geometric dimension parameters of the railway structure from the compensated three-dimensional model, and outputting the geometric dimension parameters as measurement results. According to the scheme, high-precision non-contact measurement of geometric dimension parameters such as the track gauge, the height difference and the roll angle of a railway track structure is achieved.
Owner:CHENGDU IND VOCATIONAL TECHN COLLEGE

Rapid measurement method and system for geometric irregularity of track in turnout zone

The invention discloses a rapid measurement method and system for geometric irregularity of a track in a turnout zone. The method comprises the steps that complete three-dimensional point cloud data of the surface of a railway turnout steel rail are obtained in real time through a multi-angle line structure laser scanner on a special detection vehicle body; accurate attitude and position data of the detected vehicle body in the measurement process are obtained in real time through an inertial navigation measurement unit and an odometer; obtaining a high-precision pose of a detected vehicle body through a robust dead reckoning method of an IMU (Inertial Measurement Unit) assisted by a speedometer dynamic lever arm value based on a variable wheel-rail contact point; constructing a turnout area three-dimensional point cloud model; extracting geometric irregularity key points of turnout steel rail point cloud from the turnout area three-dimensional point cloud model; calculating parameters of track gauge, horizontal and rail direction irregularity and unevenness; the special detection vehicle body can quickly and stably pass through a turnout area to complete continuous and accurate measurement of geometric irregularity of a track.
Owner:WUHAN UNIV

Damping fastener for traffic rail

InactiveCN119392544AAvoid Elastic FatigueRail fastenersFastenerHydraulic pressure
The invention relates to the technical field of rail fasteners, and provides a traffic rail damping fastener which comprises a sleeper, a supporting plate is arranged at the top of the sleeper, fastening assemblies used for fixing the supporting plate to the sleeper are arranged at the two ends of the supporting plate, and two rail gauge assemblies used for fixing a steel rail are arranged at the top of the supporting plate. The two track gauge assemblies are symmetrically distributed along the center of the supporting plate, the two ends of the top of the supporting plate are fixedly connected with blocking bases, the inner sides of the two blocking bases are provided with vibration reduction assemblies, each vibration reduction assembly comprises a supporting base, and the supporting bases are fixedly connected to the inner sides of the blocking bases through bolts; hydraulic buffering pieces used for buffering the gauge assemblies are arranged on the inner sides of the supporting seats. Buffering is achieved through cooperation of hydraulic pressure of oil and the first spring, the vibration reduction pressure of a single spring is greatly reduced, and the problem that elastic fatigue occurs under the action of violent vibration force in a single spring vibration reduction mode is effectively solved.
Owner:DEZHOU RUIGU ELECTRONIC TECH CO LTD

Rigid-flexible coupling type turnout damping fastener system

A rigid-flexible coupling type turnout damping fastener system comprises an iron base plate, an under-plate elastic cushion layer, a heightening base plate, an elastic rail brace, eccentric bushings and an under-rail elastic base plate, the eccentric bushings are inserted into oblong holes in the two ends of the iron base plate and the two ends of the under-plate elastic cushion layer, and turnout tie bolts penetrate through the eccentric bushings and then are fixed to a turnout tie; the under-plate elastic cushion layer is formed by compounding low-rigidity and high-rigidity materials, the elastic rail brace is in elastic contact with a steel rail, the track gauge is adjusted by rotating the eccentric sleeve by 180 degrees, and the transverse rigidity of the fastener system is increased through the elastic rail brace; the fastener system has small vertical rigidity and large transverse rigidity, it can be ensured that the fastener system can provide enough vibration reduction elasticity for the steel rail in the vertical direction, meanwhile, the vertical displacement can be controlled within the design range, and therefore the stability of the steel rail and the running smoothness of a train are improved; and on the other hand, the mutually assembled parts of the fastener system are designed according to the rigid-flexible coupling contact relation of metal and nonmetal, so that the impact vibration of a train on the steel rail can be buffered.
Owner:CHINA RAILWAY BAOJI BRIDGE GROUP CO LTD

Roller coaster gauge measuring method and system based on three-dimensional point cloud data

The invention discloses a roller coaster track gauge measurement method and system based on three-dimensional point cloud data, and relates to the technical field of roller coaster track gauge measurement, and the method comprises the steps: firstly obtaining the three-dimensional point cloud data of a space where a target roller coaster track is located, and extracting the three-dimensional point cloud data of the target roller coaster track from the three-dimensional point cloud data; based on the cross section features of the orbits, center track point cloud data of the two single-side orbits are extracted from the cross section features, the center track point cloud data of the two single-side orbits are matched with each other through a nearest neighbor search algorithm, a plurality of point cloud pairs are obtained, the distance between the two point clouds in each point cloud pair is calculated, and the distance between the two point clouds in each point cloud pair is calculated; therefore, the track gauge of any position of the target roller coaster track can be determined. According to the scheme, the three-dimensional point cloud data of the roller coaster track is obtained, the track gauge can be automatically measured and calculated through a designed algorithm, manual measurement is not needed, and calculation is accurate; moreover, the distance between the central points of the two rails can be measured, and the value of the rail gauge data is greatly improved.
Owner:CHINA SPECIAL EQUIP INSPECTION & RES INST

High-speed railway ballastless track construction measurement method

The invention belongs to the technical field of data measurement, and discloses a high-speed railway ballastless track construction measurement method, which comprises the following steps of: carrying out internal reference and external reference calibration on a binocular camera of a track detection trolley; obtaining related data containing a binocular image, and carrying out space-time alignment processing on the related data so as to construct a prediction state vector; carrying out stereo matching on the binocular image to generate a prediction disparity map, and carrying out three-dimensional reconstruction on the prediction disparity map to obtain a track point cloud map; and extracting a track inner side point coordinate sequence and a track height program sequence from the track point cloud picture, and generating a corresponding track gauge table and a corresponding smoothness table. According to the invention, vision, three-dimensional reconstruction and inertial navigation technologies are integrated, and integrated detection of gauge, elevation and smoothness parameters is realized.
Owner:CCCC SECOND HIGHWAY ENG CO LTD

Intelligent track flaw detection equipment and flaw detection method

The invention provides intelligent track flaw detection equipment and a flaw detection method, and belongs to the technical field of track flaw detection. According to the method, an innovative strategy of staged flaw detection is adopted, double-mode dynamic switching of rapid rough flaw detection and low-speed fine flaw detection is utilized, a high-frame-rate visual system is used for screening surface defects, ultrasonic wave and laser ranging are combined, deep cracks and track gauge deviation are detected, all defect types are covered, and defect missing detection errors at a single speed are compensated. The flaw detection equipment comprises a flaw detection trolley, the flaw detection trolley comprises a chassis, and the chassis is composed of an advancing cross beam and two groups of advancing longitudinal beams connected to the end parts of the advancing cross beam; the advancing cross beam is connected with a visual system and a laser range finder, and an ultrasonic flaw detector is arranged on the advancing longitudinal beam. According to the invention, ultrasonic wave, machine vision and laser ranging technologies are integrated, full-dimension, full-climate and full-scene track flaw detection is realized, and the railway operation and maintenance efficiency, the intelligent level and the operation safety are greatly improved.
Owner:SHANDONG POLYTECHNIC

High-speed railway fine tuning optimization method suitable for multiple working conditions

The invention discloses a high-speed railway fine tuning optimization method suitable for multiple working conditions. The method comprises the steps that S1, high-speed railway ballastless track fine tuning basic data are obtained; s2, establishing a high-speed rail ballastless track double-track multi-target optimization model; s3, solving a double-track adjustment amount based on an interior point method; and S4, obtaining a fastener adjustment grade. According to the method, the adjustment amount of the fastener is used as a decision variable, irregularity indexes such as the adjustable allowance of the fastener, the long-medium-short wave irregularity of double rails, the track gauge and the level are used as constraints, and on the basis, linear weighting is carried out through three targets of minimum adjustment amount, linear regression and track smoothness to establish a target function; the track adjustment amount optimization suitable for various working conditions is achieved, the use amount of fastener accessories in the fine adjustment process is reduced, track double-track fine adjustment is achieved in place at a time, and the track fine adjustment process is simplified.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Method and device for measuring eccentricity of railway bridge line beam

The invention provides a railway bridge line beam eccentricity measuring method, which at least comprises the following steps of: acquiring position information of a bridge guardrail by adopting a radar module, and adjusting the height position of a laser ranging module according to the position information, so that the laser ranging module can detect the bridge guardrail for ranging; the laser ranging module is adopted to measure the distances between the first steel rail and the bridge guardrails on the two sides of the first steel rail at the same time, and the eccentric distance is calculated according to the distance parameters measured by the laser ranging module and the track gauge of the track. The invention provides a device for measuring the eccentricity of the railway bridge line beam. The measuring device is applied to the method for measuring the eccentricity of the railway bridge line beam. The method has the beneficial effect that the eccentric distance along the track can be automatically and continuously measured.
Owner:SHENHUA RAIL & FREIGHT WAGONS TRANSPORT

Steel rail fastener mounting method

The invention belongs to the technical field of railway tracks, and particularly relates to a steel rail fastener mounting method which comprises the following steps: step 1, placing sleepers; secondly, baffle seats are placed on the sleepers; step 3, placing the under-rail backing plate; fourthly, the gauge apron is placed; 5, installing a W-shaped elastic strip; sixthly, the screw spikes sequentially penetrate through the W-shaped elastic strips and the gauge aprons to be in threaded connection with the pre-embedded sleeves, and a pre-assembled fastener system is formed; seventhly, the pre-assembled fastener system is moved to a track construction installation position; eighthly, the screw spikes are unscrewed, the gauge apron is lifted to buckle one end of the under-rail cushion plate, the steel rail is laid, and the gauge apron is put down; and ninthly, the screw spikes are tightened, and assembling is completed. Parts are placed in order, and the parts are not prone to being missed and lost; and when the sleeper is carried into a rail construction installation position from the side of the rail, the W-shaped elastic strip can be used as a hanging point, so that the sleeper can be conveniently carried on site, the efficiency is high, and the potential safety hazard during sleeper carrying is greatly reduced.
Owner:FUSHIKOU RAILWAY EQUIP ZHEJIANG CO LTD

Multifunctional track detection system

The invention relates to the technical field of rail transit, and provides a multifunctional rail detection system, which comprises a multi-source data acquisition unit, an optical fiber inertial navigation sensor, a laser array module, a dual-mode camera group, a radar speed measurement module and a temperature and humidity sensor, the data acquisition module is used for synchronously acquiring track geometric parameters, three-dimensional surface topography, inertial navigation data, real-time vehicle speed and environmental parameters; the dynamic processing unit is arranged in the compartment and comprises a data fusion controller, a self-adaptive Kalman filtering module, an anomaly diagnosis engine and an edge computing host, and the data fusion controller integrates multi-source data through a multi-thread parallel processing technology. On the basis of self-adaptive Kalman filtering and vehicle speed-parameter dynamic mapping, the track gauge detection error under the variable speed working condition is reduced to + / -0.3 mm from + / -3 mm, and the curvature radius calculation error lt is obtained; and the predictive maintenance model prolongs the overhaul period of the track by 40%, and reduces the operation and maintenance cost by 35%.
Owner:SHAN XI QIN LIAN GUI DAO KE JI FU WU YOU XIAN GONG SI

Rail gauge and level detection method and system based on mobile laser scanning

The invention discloses a rail gauge and level detection method and system based on mobile laser scanning, relates to the technical field of railway track detection, and solves the problem that effective data is difficult to efficiently and accurately extract from mass data for gauge and level detection in the existing mobile laser scanning technology. According to the technical scheme, the method is characterized in that steel rail railhead point cloud data are segmented from rail laser point cloud data on the basis of the geometrical shape of a standard cross section of a steel rail railhead, irrelevant data are reduced as much as possible while the rail gauge and data needed by horizontal detection are reserved, and the data processing pressure is effectively reduced; steel rail railhead point cloud data is obtained based on combined segmentation of geometric constraint and physical constraint, and the segmentation precision of the steel rail railhead part is improved; point cloud data are simplified based on a steel rail head point cloud model, and the calculation precision is guaranteed while the calculation pressure is reduced; feature points and mileage information are stored based on a quick lookup table, quick detection is realized, and the detection efficiency is improved.
Owner:中铁科学研究院集团有限公司 +1

Rail distance measuring device for rail transit

The embodiment of the invention provides a rail distance measuring device for rail transit, and relates to the technical field of rail distance measurement. A track distance measuring device for track traffic comprises a measuring body, two sets of moving assemblies, a marking assembly, a driving part, an auxiliary measuring mechanism and a sealing assembly, and the two sets of moving assemblies are located on the two sides of the measuring body respectively and used for walking on a track; the auxiliary measuring mechanism is mounted on one side of the measuring body, and two ends of the auxiliary measuring mechanism are respectively contacted with the inner walls of the two groups of rails. High-precision track gauge measurement is achieved through the measuring wheel and the encoder, track gauge abnormity is sensed in real time in combination with the side rolling wheel and the displacement sensor, automatic marking is achieved in cooperation with the pump body, the storage box and the liquid outlet pipe, and leakage is prevented through the sealing assembly in the non-working state; meanwhile, full-automatic control over rolling wheel avoiding, sealing relieving and liquid spraying marking is achieved through a driving part linkage mechanism, and the track detection precision, efficiency, the intelligent level and the device reliability are remarkably improved.
Owner:WUHAN YUANYAN MAPPING TECH CO LTD +1

Railway track online movement detection system and method

The invention discloses a railway track online movement detection system and method, and relates to the technical field of rail detection, and the technical scheme is that the railway track online movement detection system comprises a detection management platform module, a signal processing module is arranged at the connection end of the detection management platform module, and a data processing module is arranged at the connection end of the signal processing module; the signal processing module comprises a track geometric parameter detection management module, a track fastener detection module and a foreign matter detection module, and the track geometric parameter detection management module comprises a track height detection module, a track gauge detection module, a track direction detection module, a horizontal detection module and a triangular pit detection module. The rail geometric parameter detection and management module comprises an image monitoring module, a laser photoelectric monitoring module and an ultrasonic monitoring module. The rail geometric parameter detection and management system has the beneficial effects that the working efficiency of an inspection mode is high, problems on a railway transportation line are found in time, a scientific and reasonable method is applied in time to maintain and repair the line, and good operation of the line and transportation safety are ensured.
Owner:BEIJING HONGSHAN INFORMATION TECH RES CO LTD

Monitoring device based on Beidou satellite positioning

The invention relates to the field of track monitoring, in particular to a monitoring device based on Beidou satellite positioning, which comprises a track and a walking support advancing along the track, a monitoring host is fixedly arranged in the center of the upper end of the walking support, a Beidou positioning antenna is connected to the upper end of the monitoring host, and fixing frames are symmetrically arranged on two sides of the bottom of the walking support. Movable frames are rotatably connected to the two ends of the bottom of the walking support through torsional spring shafts, walking wheels are rotatably installed in the fixed frame and the movable frames, a detection notch is formed in the fixed frame in a penetrating mode, a track gauge monitoring assembly is arranged in the detection notch, installation cavities are formed in the two sides of the upper end of the walking support, and surface monitoring assemblies are arranged in the installation cavities. The distance between the rails is monitored through the rail gauge monitoring assembly, the abrasion condition of the surfaces of the rails is monitored through the surface monitoring assembly, and therefore the real-time monitoring process of the whole road section of the rails is achieved.
Owner:ZHONGHUANXING DIGITAL TECH (DALIAN) CO LTD

A bogie axle box for high-speed trains with overload self-adjusting structure

The present invention discloses a bogie axle box for high-speed trains with an overload self-adjusting structure, comprising a bogie housing, an axle box housing, a gauge changing mechanism, and further comprising: an air spring, the air spring being located at the gap between the bogie housing and the axle box housing; a support member for reducing the friction between the axle box housing and the axle box support rail, the support member being arranged at one end of the axle box housing in contact with the axle box support rail; a first groove, the first groove being arranged on the outside of the axle box housing; a detection member acting on the first groove and the sunken track of the track changing device, and being able to inform the driver of the gauge changing state. In the present invention, when the gauge change is completed and the wheel pair distance is adjusted, the second connecting rod is separated from the pressure switch under the elastic action of the first spring and the second spring, thereby disconnecting the circuit, reminding the operator in the control room that the limit pin has been re-locked, and the real-time state of the gauge changing operation can be effectively informed to the operator in the control room.
Owner:CHANGZHOU HUADE MACHINERY

Railway construction data processing method and system

The invention relates to the technical field of data processing, and discloses a railway construction data processing method and system. The method comprises the steps of performing semantic annotation on track laying, line measurement and construction monitoring data through RDF semantic association to obtain a semantic data set; setting smoothness constraint screening qualified data according to the gauge deviation and the elevation deviation; qualified data are input into an improved firework algorithm, and track geometric parameters are optimized through a curvature self-adaptive explosion mechanism; adopting improved Kriging interpolation to complement the track center line, the track surface elevation and the track gauge change data; and establishing a construction quality constraint matrix, and cooperatively adjusting track line shape, elevation control and track gauge precision through a sequential quadratic programming algorithm. According to the method, the technical problems of lack of multi-source data semantic association, insufficient professional algorithm adaptability and insufficient parameter collaborative optimization capability in railway construction are solved.
Owner:SHAANXI HENGCHANG RAILWAY ENG CO LTD

A multi-unmanned aerial vehicle cooperative surveying method and system for a region along a railway

Embodiments of the present application provide a kind of multi-unmanned aerial vehicle cooperative surveying and mapping method and system for the area along railway, belong to railway surveying and mapping technical field.The method comprises: unmanned aerial vehicle acquires monitoring data in flight process;Dynamic adjustment the relative position and attitude between aircraft, build the observation configuration with change baseline parameter;Control the laser ranging module of each unmanned aerial vehicle carried out synchronous ranging operation, generate multiple sets of laser point cloud data covering railway structure area;The coordinate registration and fusion of the laser point cloud data collected are carried out, and the position information and attitude information of each unmanned aerial vehicle are combined;From the three-dimensional model after compensation, the geometric dimension parameter of railway structure is extracted, and the geometric dimension parameter is output as measurement result.The present application scheme realizes the high-precision non-contact measurement of the geometric dimension parameter such as track gauge, height difference, lateral angle of railway track structure.
Owner:CHENGDU IND VOCATIONAL TECHN COLLEGE

Rail smoothness influence factor correlation analysis method

The invention relates to the technical field of railway engineering, in particular to a track smoothness influence factor correlation analysis method which comprises the following steps: taking track gauge deviation, unevenness, horizontal irregularity, track direction irregularity and curvature change rate corresponding to track smoothness as parameter components; calculating a reference value and an allowable threshold value between the parameter components by using a Gaussian mixture model, and determining the weight of each parameter component; identifying degradation characteristics of each parameter component under the time sequence; using the updating time of the comprehensive degradation degree as a key node of each parameter component by using a linear weighting form; verifying the association probability of each key node and the maintenance record, setting an early warning parameter set, and setting the change trend of each key node according to the number of continuous early warning times in the early warning parameter set; performing interaction analysis based on the change trend of each key node, and determining an early warning range boundary of each parameter component under parameter accumulation; the accuracy and efficiency of track smoothness analysis are realized.
Owner:ANHUI DIGITAL INTELLIGENT CONSTR RES INST CO LTD +1

Bogie stacking structure

The utility model discloses a bogie stacking structure, which relates to the technical field of railway engineering vehicles, and comprises at least two stacked bogies, a stacking device is arranged between every two vertically adjacent bogies, and the stacking device comprises four support limiting frames distributed in a rectangular shape. A transverse supporting rod is arranged between every two transversely adjacent supporting limiting frames, and a longitudinal supporting rod is arranged between every two longitudinally adjacent supporting limiting frames. The ends of the transverse supporting rods and the ends of the longitudinal supporting rods are connected with the corresponding supporting limiting frames through adjusting locking devices respectively. The utility model solves the problems that the conventional bogie can only be stored on a station track singly and the space utilization rate is low. The bogie stacking device provides a new bogie storage mode, so that the bogies can be safely and efficiently stacked and stored on the flat ground, and the utilization efficiency of a working site is remarkably improved. The overall tool design considers the diversity of the track gauges and the wheel set types, and is also used when the track gauges and the wheel set models change.
Owner:金鹰重型工程机械股份有限公司

Distance-adjustable railway gauge pull rod

The distance-adjustable railway gauge pull rod comprises a storage square pipe, four sets of partition plates are installed in the storage square pipe, a two-way screw rod penetrates through the four sets of partition plates through bearings, the side wall of the two-way screw rod is connected with two sets of lead screw sleeves in a sleeved mode, the side walls of the two sets of lead screw sleeves are connected with sleeving plates in a sleeved mode, and the sleeving plates are connected with the two sets of lead screw sleeves in a sleeved mode. Insulating rods are mounted on the far-away faces of the two sets of sleeving plates, the far-away ends of the two sets of insulating rods slidably penetrate through the opposite faces of the two sets of partition plates on the two sides correspondingly, four sets of mounting shells fixedly penetrate through the lower portion of the storage square pipe, and lifting plates are arranged in the four sets of mounting shells correspondingly; and universal wheels are mounted at the lower parts of the four groups of lifting plates. The distance-adjustable railway gauge pull rod has the advantages that the partition plate and the sealing cover are adopted, the use position of the clamping device can be stored and adjusted through the partition plate and the sealing cover, and the transportation safety of the distance-adjustable railway gauge pull rod is improved.
Owner:LINZHOU PUBLIC SERVICE RAILWAY EQUIP MFG CO LTD

Portable detection vehicle for water leakage diseases of subway tunnel

The invention discloses a portable detection vehicle for subway tunnel leakage water diseases. The portable detection vehicle comprises a main cross beam support, a vertical beam support, a wheel track frame, a hand-push support, a distance measuring encoder and the like. The main cross beam bracket is provided with two cross pipes which are orthogonally and fixedly connected through insertion and extraction, and three groups of ground penetrating radar antenna suspension brackets are arranged below the main cross beam bracket, so that the detection operation of leakage, void and other diseases under a tunnel ballast bed can be realized; the wheel rail frames are three groups of belt wheel brackets fixedly mounted below the main cross beam bracket, and the transverse spacing of the wheel rail frames can be adjusted according to different track gauges; one end of the vertical beam bracket is fixedly connected with the main cross beam bracket, and a plurality of plate-shaped platforms are arranged above the vertical beam bracket and are used for carrying different types of tunnel disease detection instruments; on one hand, the hand-push bracket provides advancing power for the portable detection vehicle, and on the other hand, the acquisition terminal can be mounted and fixed; and the distance measuring encoder is coaxially connected with the wheels of one group of belt wheel brackets and is used for accurate positioning of data acquisition. According to the device, rapid and synchronous detection of subway tunnel ballast bed leakage, void damage, tunnel appearance water leakage damage, tunnel deformation and other damage can be realized by carrying a detection instrument, and meanwhile, the device is convenient to disassemble and assemble and convenient to carry by workers.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

High-precision measuring device for high-speed rail track gauge

The utility model relates to the technical field of gauge measurement, and discloses a high-precision measuring device for a high-speed rail track gauge, and the device comprises a gauging rule, one end of the gauging rule is fixedly connected with a fixed seat, and the other end of the gauging rule is slidably connected with a sliding seat; two groups of walking mechanisms are arranged below the fixed seat, a group of walking mechanisms is arranged below the sliding seat, and each walking mechanism is used for enabling the gauging rule to move on a rail; the traveling mechanism below the fixed seat is clamped on a rail through a clamping assembly, the clamping assembly comprises at least two clamping blocks, the position of at least one inner side clamping block can be adjusted to adapt to the rail and keep stable, a conductive block is arranged on the inner side of each clamping block, and the conductive blocks are connected with conductive heads. By arranging the clamping assembly, dynamic self-adaptive clamping of the rail is achieved, stable contact between the gauging rule and the rail in the measurement process is ensured, and the stability and accuracy of measurement are remarkably improved.
Owner:HENAN CHENGKUN RAILWAY ENG CO LTD

Mounting seat based on track mounting and detection equipment

The invention relates to the technical field of rail traffic detection, in particular to a mounting seat and detection equipment based on rail installation, and the mounting seat comprises a frame and a rail clamp; the frame comprises a cross rod which is arranged between two adjacent sleepers and is positioned below the track; two rail clamps used for being connected with the two rails respectively are installed on the transverse rod. At least one rail clamp is movably installed on the transverse rod and can freely move on the transverse rod. According to the mounting seat, the frame can be quickly and conveniently mounted on the rail through the rail clamp, so that the required mounting time is short, the mounting is easy, the workload is small, and the mounting can be completed within one skylight point time. Besides, as at least one rail clamp is movably mounted on the cross rod, when the relative position between the two rails is changed, the relative position between the two rail clamps can also be changed, so that the whole mounting seat can adapt to rail distance deviation and lateral sliding of the rails during vehicle passing.
Owner:CHENGDOU ZHUDAO SOFTWARE TECH CO LTD

Integral type flexible track fixing device

The utility model provides an integral type flexible track fixing device, and belongs to the technical field of traveling tracks of hoisting and transporting machinery. The rail fastener solves the problem that an existing rail fastener is small in rail gauge adjusting range. The device comprises a steel base plate, the upper surface of the steel base plate is provided with two connecting areas, the space between the two connecting areas is used for containing a steel rail, each connecting area is provided with an upper pressing plate through a pressing bolt, the upper pressing plates abut against the side portion of the steel rail, and the upper pressing plates are provided with pressing parts pressed on the steel rail. Each connecting area is internally provided with an installation groove extending in the longitudinal direction perpendicular to the steel rail, and rod heads of the compression bolts are installed in the installation grooves. The mounting grooves extend in the longitudinal direction perpendicular to the steel rails, so that the adjustable range of the compression bolts is large, and the adjustment range of the gauge is large.
Owner:CHINA RAILWAY CHONGQING SURVEYING DESIGN RES INST CO LTD

Track space attitude intelligent detection equipment and detection method thereof

The invention relates to intelligent track space attitude detection equipment and a detection method thereof.The detection equipment comprises two walking systems, rod inserting equipment, track detection equipment and a control system, the two walking systems are connected to the upper side of a track in a rolling mode, and the rod inserting equipment and the track detection equipment are installed on the two walking systems correspondingly; a positioning navigation system and a data acquisition system are mounted on the walking system, and the track inspection equipment comprises a coordinate acquisition system, a track gauge measurement system and an ultrahigh measurement system. According to the design, the rod inserting equipment and the rail inspection equipment are combined, automatic walking is conducted through the walking system, therefore, the operation stability can be guaranteed, the labor intensity is greatly reduced, meanwhile, the real-time coordinates of the rod inserting equipment are obtained in combination with the positioning navigation system and the data acquisition system, and therefore the accuracy and feedback speed of rod inserting measurement are effectively guaranteed; the positioning navigation system is combined with the superelevation measuring system and the track gauge measuring system, so that the track initial adjustment speed can be increased, and the track fine adjustment precision can be improved through cooperation of the inserting rod equipment and the track detection equipment.
Owner:CHINA RAILWAY 11TH BUREAU GRP CORP LTD +1

Railway line detection intelligent robot

The invention relates to the technical field of robots, in particular to a railway line detection intelligent robot which comprises a main body, and the main body is provided with a walking mechanism used for driving the robot to walk; the image acquisition module is used for acquiring railroad sleepers, railroad sleeper spike bolt images, oil coating processes, steel rail surface profiles and the like; the intelligent sensing system is used for acquiring railway detection information; the detection information comprises identification and accurate positioning of railroad sleeper spikes and bolts, detection of positions and states of the railroad sleeper spikes and bolts, measurement of rail gauges and surface profiles and the like; the intelligent control technology management platform is used for receiving the detection information of the intelligent sensing system and the image data transmitted by the image acquisition module and carrying out statistical analysis; and the oil coating mechanism is used for synchronously carrying out oil coating operation on the railway sleeper spike bolt. According to the railway sleeper spike bolt oiling device, the railway sleeper spike bolt oiling efficiency and quality are improved, multi-directional detection and image acquisition of a steel rail are achieved, and the automation degree is high.
Owner:JINAN HUASHENG INFORMATION TECHNOLOGY CO LTD

Device and method for measuring width of rail head of steel rail

The invention relates to a steel rail head width measuring device and method, and belongs to the technical field of steel rail detection equipment and methods. According to the technical scheme, a measuring base (1) is attached to the position of a rail head of a steel rail (4) in the middle, a measuring claw (3) is installed at the front end of the measuring base (1), and the measuring claw (3) makes contact with linear sections of the two side faces of the rail head; a magnetic railing sliding piece (15) of the magnetic railing ruler (2) is connected with the measuring claw (3), and the back face of the magnetic railing ruler (2) is connected with the measuring base (1). The beneficial effects of the invention are that the reference device which is attached to the tread of the steel rail and has a magnetic attraction function is utilized to realize the accurate positioning of the verticality of the measuring device relative to the steel rail and the measuring point, and at the same time, the two side surfaces of the rail head are wedge-shaped. A rail head width tolerance measurement problem at a gauge corner is converted into a vertical displacement measurement problem of a contact point of a measurement claw and a steel rail side surface, a magnetic railing ruler is used for measurement, and amplification conversion is performed according to a proportion, so that the measurement precision is further improved.
Owner:HANDAN IRON & STEEL GROUP CO LTD +1