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479 results about "Derailment" patented technology
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A derailment occurs when a vehicle such as a train runs off its rails . Although many derailments are minor, all result in temporary disruption of the proper operation of the railway system and they are potentially seriously hazardous to human health and safety. Usually, the derailment of a train can be caused by a collision with another object, an operational error, the mechanical failure of tracks, such as broken rails, or the mechanical failure of the wheels. In emergency situations, deliberate derailment with derails or catch points is sometimes used to prevent a more serious accident.
Vision and vibration-based multi-dimensional train derailment monitoring method
The invention discloses a multi-dimensional train derailment monitoring method based on vision and vibration, and belongs to the field of rail transit, the method comprises the following steps: respectively collecting a wheel-rail contact area image and vibration data of each wheel in different directions, and carrying out space-time alignment on the wheel-rail contact area image and the vibration data; combining an edge detection algorithm and a Hough transform technology to extract visual features from the wheel-rail contact area image, extracting vibration features from the vibration data, and associating the visual features with the vibration features to generate a wheel flange transverse position-vibration feature mapping table; and establishing a D-S evidence theory fusion model based on the wheel flange transverse position-vibration feature mapping table, fusing the visual features and the vibration features by using the D-S evidence theory fusion model, and judging the train derailment risk according to a feature fusion result. According to the invention, deep coupling analysis of visual images and vibration data is realized, and the defects that the prior art cannot adapt to working condition changes, false alarms are easily generated and operation is affected are overcome.
Owner:CRRC NANJING PUZHEN CO LTD
Wheel tread derailment detection method and system for railway vehicle
The invention provides a wheel tread derailment detection method and system for a railway vehicle. According to the method, jacking driving devices with jacking rotating wheels are symmetrically arranged on the two longitudinal sides of a track, a pressure sensing unit is arranged between the two jacking rotating wheels, optical detection units with orthogonal optical paths are installed on the outer sides, and displacement measurement units are integrated on the jacking rotating wheels, so that a three-dimensional detection network is formed. During detection, a top rotating wheel lifts a wheel step by step, a blocking signal, tread pressure and a vertical displacement parameter are synchronously collected, and a space mapping relation between a pressure decreasing path and a displacement abnormal point is established; converting the blocking signal into a blocking release rate, and calculating a displacement accumulated value in combination with a space mapping relation; and when the displacement accumulated value is continuously increased and the blocking release rate exceeds a threshold value, wheel-rail separation is judged, and jacking is controlled to be stopped. Through cooperative detection and analysis of multiple sensors, accurate judgment and self-adaptive jacking control of the wheel-rail separation state are achieved, and the problem of wheel diameter adaptability of a traditional fixed jacking mode is effectively solved.
Owner:TIANJIN TIANKAI JINJIAO TECHNOLOGY CO LTD
Intelligent control system and intelligent control method of bridge girder erection machine
PendingCN119414892Aprevent derailmentBridge erection/assemblyTravelling gearMotor speedFrequency changer
The invention provides an intelligent control system and an intelligent control method of a bridge girder erection machine, and relates to the technical field of bridge construction application, the intelligent system comprises a plurality of variable frequency controllers which are respectively installed on a front support and a middle support, a front crown block and a rear crown block, and a rear support, the variable frequency controller controls the rotating speed of the transverse moving motors of the front support and the rear support, the rotating speed of the walking motors of the front crown block and the rear crown block and the rotating speed of the front and rear running motors of the middle support and the rear support according to a control instruction of the PLC control system. The rotating speed of the motor is controlled through the frequency converter, so that the left-right moving synchronism of the front support and the middle support of the bridge girder erection machine is effectively controlled, the walking synchronism of the front crown block and the rear crown block on the left and right wheels on the track is effectively controlled, and derailment caused by inconsistent speeds of the wheels on the two sides of the track is avoided.
Owner:WUHAN SILI SPECIAL CONSTR MASCH CONSTR CO LTD +2
Track system for movement of inspection robot at bottom of truck
The invention relates to the technical field of railway freight train technical inspection, in particular to a rail system for movement of a wagon bottom inspection robot, which comprises a robot and a robot rail, a groove is formed in the surface of the robot rail, a rail clamping device is arranged at the bottom of the robot, and a polyurethane outer ring bearing is mounted on one side of the rail clamping device. The polyurethane outer ring bearing is located in the groove, and the rail clamping device is connected to the surface of a robot rail in a clamped mode. When a robot inspects the bottom of a preset truck on the robot track, the polyurethane outer ring bearing is always located in a groove in the surface of the robot track, and the robot is prevented from derailing; the non-metal outer ring bearings of the rail clamping devices make contact with the side faces of the robot rails when the robot moves, so that the non-metal outer ring bearings of the rail clamping devices are located in the grooves in the side faces of the two robot rails all the time, the robot cannot be separated from the robot rails, the robot is prevented from being damaged due to derailing, and the working efficiency of the robot is improved.
Owner:SHENHUA RAIL & FREIGHT WAGONS TRANSPORT
Train protection partition processing method based on train-to-train communication architecture
InactiveCN120863718ARailway traffic control systemsSignalling indicators on vehicleAutomatic train protectionRemote control
The invention discloses a train protection zone processing method based on a train-to-train communication architecture, which comprises the following steps that: an ATP (Automatic Train Protection) of a fault train submits an application for requesting to establish a protection zone to an RC (Remote Control), and the RC sends inquiry information to all trains which establish communication with the RC in a control zone of the RC; after receiving inquiry information of the RC, the trains check the relation between the trains and the protection area and reply, and if all the trains reply to agree to establish the protection area, the RC establishes the protection area; according to the distance between the train inside and outside the protection area and the fault train and the corresponding driving direction, the running state of the train is determined; the running state is emergency braking or continuous running; and after the fault train does not report derailment to the RC or an obstacle exists on the track, the protection area of the fault train is cancelled. The safety and efficiency of train operation are improved.
Owner:CHENGDU RAIL TRANSIT IND TECH RES INST CO LTD +1
Mechanical rail train detection method and system with real-time detection function
The invention relates to the technical field of urban rail train safety detection, and discloses a mechanical rail train detection method and system with a real-time detection function, and the method comprises the steps: collecting the states of obstacles on the two sides of a bogie and normally open and normally closed contacts of derailment detection travel switches; calculating a trigger state code; an emergency or non-emergency braking signal is output and an alarm is given; and when the state returns to normal and a reset instruction is received, the alarm is released and the initial state is recovered. In the prior art, obstacle or derailment detection is realized by depending on a multi-stage sensor and an electronic control unit, and especially in complex operation environments of high electromagnetic interference, high humidity dust and the like, stable and low-fault-rate real-time detection cannot be realized. Due to the fact that a redundancy judgment mechanism combining a pure mechanical structure and the vehicle programmable logic control unit LCU is adopted, high-reliability real-time detection of the obstacle and derailment state is achieved, and the safety and maintainability of a train system are improved.
Owner:CRRC NANJING PUZHEN CO LTD
Heavy-duty truck vehicle-mounted safety monitoring method and device
The invention provides a heavy-duty truck vehicle-mounted safety monitoring method and device, and the method comprises the steps: obtaining the original monitoring data of a wheel-rail force through a wheel-rail force monitoring module which is installed on an axle and has a low power consumption characteristic, and carrying out the edge calculation of the original monitoring data, and obtaining a wheel load shedding rate, a derailment coefficient and a wheel axle transverse force; the framework acceleration and the bearing temperature are obtained through the low-power-consumption vibration acceleration sensing module and the bearing temperature sensing module; performing multi-modal fusion on each index to obtain a multi-modal operation state representation vector; obtaining a dynamic threshold value of each index based on an enhanced feature vector and a multi-modal operation state representation vector obtained by an offline self-learning model; and giving current situation analysis and trend analysis of safety monitoring based on a comparison result of each index and a dynamic threshold value. According to the invention, the limitation of independent analysis of single sensor data in the prior art is overcome, the dynamic adjustment of the safety threshold is realized, and the accuracy and reliability of safety monitoring are improved.
Owner:CHINA ACADEMY OF RAILWAY SCI CORP LTD +2
A beam-type ballastless track with a steel lining plate
The present invention belongs to the technical field of rail transit, and discloses a beam-type ballastless track with steel guard plates, comprising: a track support base, which includes: two truss pedestals and a steel bar truss. The two truss pedestals are connected by the steel bar truss. A limit boss and two steel guard plates are fixed at the top of the truss pedestal, and a lateral limit cushion block is filled between the steel guard plate and the limit boss; a track beam, the two ends of which are respectively abutted against two adjacent limit bosses. Two longitudinally arranged continuous shoulders are provided on the top surface of the track beam, and the length of the continuous shoulder is equal to that of the track beam; a beam-end composite energy-absorbing and adjusting cushion plate, which is installed in the gap between the end of the track beam and the limit boss; a sub-beam support vibration-damping and adjusting cushion plate, which is crimped between the bottom end surface of the end of the track beam and the top surface of the truss pedestal. The present invention can not only meet the strict requirements of high-speed railways for safety, smoothness and stability, but also effectively prevent the train from tipping over and running out of the line under emergency conditions such as derailment, reducing casualties and property losses.
Owner:RAILWAY CONSTR RES INST OF CHINA ACAD OF RAILWAY SCI CO LTD +3
Robustness optimization design method for railway minor-radius curve asymmetric steel rail profile
ActiveCN119442932AExtended service lifeInternal combustion piston enginesKernel methodsRail profileSensitive analysis
The invention provides a railway minor radius curve asymmetric steel rail profile robustness optimization design method, and relates to the technical field of steel rail profile optimization, and the method comprises the steps: obtaining a plurality of groups of random samples; constructing a coupling dynamics simulation model of the vehicle-rail system according to the random sample and outputting key indexes, wherein the key indexes comprise wheel-rail force, a derailment coefficient, a wheel load shedding rate and a steel rail abrasion loss; calculating according to the key indexes and a preset abrasion model to obtain accumulated abrasion depth data of the steel rail under different random variable combinations; constructing a dynamic response prediction model according to the random sample, the key index and the steel rail accumulated abrasion depth data; taking the random sample as an input value of the dynamic response prediction model to obtain a probability density distribution result, and performing sensitivity analysis to obtain a sensitive variable; and generating a Pareto frontier solution according to the sensitive variable and a preset design variable, and fitting to obtain a steel rail profile optimization design scheme. According to the method, the steel rail profile optimization solution can adapt to a complex and random operation environment.
Owner:SOUTHWEST JIAOTONG UNIV
Contact type rail vehicle obstacle detection and derailment detection integrated device
ActiveCN222247181UAutomatic initiationsLocomotivesElectrical resistance and conductanceExtreme weather
The utility model provides a contact type rail vehicle obstacle detection and derailment detection integrated device which is used for solving the technical problems that an existing vehicle obstacle detection device is low in integration level, and a derailment detection device is prone to being touched by mistake when encountering accumulated water. The device is of a passive contact type, integrates the obstacle detection function and the derailing detection function, can achieve vertical detection and horizontal detection, has the advantage of being light in weight compared with an obstacle detection device based on a steel plate spring type, and has the advantage of being high in detection efficiency compared with a derailing detection device with a conductive resistor disc arranged at the bottom of the detection cross beam. The integrated device provided by the utility model is higher in safety, can better adapt to extreme weather, and also has the characteristics of compact and novel structure, light weight, low cost, small volume and high reliability.
Owner:XIAN XIANGXUN TECH
Underground coal mine electric locomotive transportation method and system
The invention provides an underground coal mine electric locomotive transportation system. The underground coal mine electric locomotive transportation system comprises an electric locomotive body, two rails, a cleaning assembly, a limiting assembly, a smearing assembly, a conveying device and a lifting device. According to the coal mine underground electric locomotive transportation system, the cleaning brush of the cleaning assembly makes contact with the surface of the rail, coal cinder and sundries on the surface of the rail can be removed in real time along with running of the electric locomotive body, it is avoided that abrasion of the rail is aggravated by the impurities, and the manual cleaning cost is reduced; the smearing assembly evenly smears a lubricant conveyed by the conveying device to the surface of the track through smearing cotton, and in cooperation with pretreatment of the cleaning assembly, track abrasion can be effectively reduced, the service life of the track is prolonged, and the manual maintenance frequency is reduced. The circular limiting block of the limiting assembly is attached to the inner side wall of the rail, abutting limiting is provided when the electric locomotive body deviates transversely, derailing is prevented, and the driving safety is improved.
Owner:NINGXIA WANGWA COAL MINING CO LTD WANGWA SECOND MINE
Integrated automatic take-up and pay-off tensioning and winding device
The invention relates to the technical field of tensioning devices, and discloses an integrated automatic take-up and pay-off tensioning winding device which comprises a device body, a transmission structure, a guide device and a tensioning winding displacement mechanism are arranged on the device body, the transmission structure comprises a driving support, and a gear motor, a driving shaft and a driven shaft are arranged on the driving support. The driving shaft and the driven shaft are connected with a first driving wheel and a second driving wheel respectively, and a steel wire rope is arranged between the first driving wheel and the second driving wheel. The guide device comprises a fixed frame, and a plurality of guide wheels are arranged at the end part of the fixed frame; the tensioning and wire arranging mechanism comprises a lead screw shaft, a bidirectional pulley device is arranged on the lead screw shaft, the bidirectional pulley device comprises two pulleys, and the steel wire rope penetrates through the two pulleys respectively. According to the invention, a solid wire is dynamically tensioned, and better power output is maintained; meanwhile, equipment faults caused by derailment of the steel wire rope and aggravated abrasion and dynamic fluctuation caused by disordered winding of the steel wire rope are avoided, the structure is ingenious, the function is reliable, and cost is saved.
Owner:HENAN DONGFANG BOILER CITY ENVIRONMENTAL PROTECTION EQUIP
Stabilizing structure for traction machine
The invention relates to the technical field of elevators, and discloses a stable structure for a traction machine, which comprises a base, a traction wheel and a gear box are arranged on a traction machine main body, a protection part is mounted on the base and buffers and controls the abnormal rotating speed when the traction machine breaks down through the rotating centrifugal force of the traction wheel, and a mounting part is arranged on the front side of the base and is used for mounting the traction machine. The anti-falling arm is installed on the protection part and used for stably installing the protection part, the emergency reaction part is installed on the gearbox and used for conducting emergency locking on the traction wheel after brake failure of the traction machine, and the positioning seat is installed on the front side of the base. When the traction wheel breaks down and is abnormal and the rotating speed is too high, the shifting rod stretches out of the rod sleeve through centrifugal force and makes contact with the shifting plate for extrusion, the shifting plate drives the cross beam and the non-slip mat to do reciprocating lifting motion, intermittent extrusion is conducted on the steel wire rope, speed reduction and buffering are achieved, and the accident risk is prevented from being further increased.
Owner:FUSHANG MECHANICAL & ELECTRICAL (SUZHOU) CO LTD
Real-time monitoring system and method for secondary operation of roadheader
The invention discloses a real-time monitoring system and method for secondary operation of a roadheader. The second-operation real-time monitoring system of the roadheader comprises a limiting gear lever assembly, a composite trigger assembly, a central control module and a hydraulic execution assembly, the limiting gear lever assembly is arranged at the tail of a belt conveyor, and the limiting gear lever assembly comprises a telescopic rod, a built-in pressure sensor and a built-in tilt angle sensor; the composite trigger assembly is arranged on the front side of a rail car of a second conveyor of the roadheader, the central control module is connected with the limiting stop lever assembly and the composite trigger assembly, and the hydraulic execution assembly comprises a hydraulic push rod linked with the telescopic rod and an electromagnetic valve set connected with a power system of the roadheader. According to the real-time monitoring system for the secondary operation of the roadheader, through electromechanical cooperative control and a multi-stage safety triggering mechanism, accurate monitoring and active protection of the displacement of the rail car are achieved, the safety problem that the rail car in an underground coal mine derails is effectively solved, and meanwhile the equipment maintenance cost and the production interruption risk are reduced.
Owner:HUATING COAL GRP CO LTD
Mountain rail electric transporter
The utility model provides a mountain rail electric transporter, which comprises a cargo box, a track, a transmission mechanism, a driving mechanism and a power mechanism. The driving mechanism is arranged at the bottom of the cargo box and connected to the track. The driving mechanism comprises a load-bearing wheel and a driving wheel, which are respectively arranged at the upper and lower sides of the track. The power mechanism comprises a battery and a motor, the battery is electrically connected to the motor, the transmission mechanism is connected to the motor and the driving wheel, and the motor drives the driving wheel to rotate through the transmission mechanism. By adopting the above technical scheme, the driving mechanism converts the rotational motion into a linear motion through the pin of the driving wheel, thereby driving the movement of the cargo box, and the load-bearing wheel and the driving wheel are held together on the track from top to bottom, which can avoid derailment, and the driving wheel is not subjected to load, thereby reducing the energy consumption of the power mechanism, and the motor is driven, so the noise is small, thereby providing a mountain rail electric transporter with low noise and strong power.
Owner:FUJIAN PROV AGRI MACHANIZATION INST
Movable crawler chassis structure
The invention relates to the field of overhead distribution line grounding equipment, in particular to a mobile crawler chassis structure, which comprises a main frame mechanism, a chassis frame and crawlers symmetrically arranged on two side walls of the chassis frame, the tensioning mechanism comprises a transmission part fixed to the outer wall of the chassis frame and a tensioning wheel rotationally arranged on the transmission part, and the tensioning wheel makes contact with the inner surface of the crawler belt; the transmission part comprises a fixing plate fixed to the outer wall of the chassis frame and supporting rods rotationally connected to the fixing plate, the number of the supporting rods is two, the two supporting rods are symmetrically arranged on the fixing plate, and the supporting rods are in a V shape. Through mutual cooperation of the main frame mechanism, the tensioning mechanism and the adjusting mechanism, the situation that the crawler derails and the crawler slides when the crawler passes through an uneven road section can be reduced, and the crawler can be replaced more conveniently and rapidly.
Owner:HAINAN POWER GRID CO LTD QIONGHAI POWER SUPPLY BUREAU
Anti-derailment structure of crane trolley
The utility model discloses a crane trolley anti-derailment structure which comprises a trolley walking beam, a guide wheel track is arranged in the trolley walking beam, an anti-derailment sliding groove is formed in the side, located above the guide wheel track, of the trolley walking beam, an anti-derailment rod is connected into the anti-derailment sliding groove in a sliding mode, and the anti-derailment rod is of a T-shaped structure. The trolley has the following advantages that the double guide wheels on the trolley body can be inserted into the guide wheel rails only by disassembling the anti-falling covers at the ends of the trolley walking beam, the anti-falling rods are inserted into the anti-falling sliding grooves, and then the trolley body and the trolley walking beam can be rapidly assembled or disassembled; the stability of a connecting structure between the trolley body and the trolley walking beam can be effectively enhanced through cooperation of the anti-disengaging rods and the anti-disengaging sliding grooves, so that the situation that the trolley body derails is avoided, the guide wheel rails are arranged in the trolley walking beam, and then rainwater and dust in the external environment can be prevented from falling on the rails.
Owner:HUAQI (GUANGDONG) HEAVY MASCH CO LTD
Contact wheel assembly and rolling type lower contact collector shoe adopting same
The invention provides a trolley wheel assembly and a rolling type lower contact collector shoe using the trolley wheel assembly, the trolley wheel assembly comprises a first trolley wheel support, the first trolley wheel support is provided with two second trolley wheel supports, the second trolley wheel supports are provided with trolley wheel parts, and the trolley wheel parts are connected with the trolley wheel supports. The trolley wheel part comprises a trolley wheel, a carbon brush arranged in the trolley wheel and a fixing rod which is installed on the second trolley wheel support and arranged in the carbon brush in a penetrating mode. The invention has the following beneficial effects: the contact wheel is used for replacing a carbon slide plate, so that the original surface-to-surface contact between the carbon slide plate and the contact rail is changed into line-to-surface contact, sliding friction is changed into rolling friction, and the friction loss is reduced; meanwhile, compared with a carbon sliding plate, the contact wheel is more uniform in abrasion and better in heat dissipation condition, and the heat accumulation condition caused by abrasion is improved; and a pair of trolley wheels is adopted to cope with electric sparks generated by instant derailment caused by sudden load change or track irregularity in train operation.
Owner:SHANGHAI UNIV OF ENG SCI
Railway vehicle derailment simulation method and device, electronic equipment and storage medium
PendingCN120764154AGeometric CADDesign optimisation/simulationVertical vibrationVibration acceleration
The invention provides a rail vehicle derailment simulation method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a vehicle-rail system which comprises a rail vehicle model, a steel rail model and a rail plate-sleeper-fastener model; performing model verification on at least one of critical speed, operation stability index and axle box vertical vibration acceleration of the vehicle-rail system; obtaining a derailer model, wherein the derailer model comprises a base, a wedge block and a baffle plate; an acceleration sensor is arranged on a vehicle-rail system, simulation is carried out on the rail vehicle under different working conditions according to simulation configuration, simulation data under different working conditions are collected through a speed sensor, and the simulation data comprise wheel impact corresponding values and vehicle speeds; and calculating the relationship between the wheel impact corresponding value and the vehicle speed to obtain a derailment impact simulation result of the railway vehicle. The method has the beneficial effect that the simulation accuracy of the railway vehicle is improved.
Owner:CENT SOUTH UNIV +1
RF-powered railway monitoring system and method using the same
A maintenance-free, automatic track monitoring system has been developed to monitor rail tracks and detect potential hazards that could pose safety concerns or lead to derailments. The track monitoring system operates during normal railway service without disruptions to train operations. The track monitoring system includes an on-train device and wayside battery-free sensing tags (WBSTs). The on-train device utilizes radio frequency (RF) energy to wirelessly charge WBSTs. As the train passes, the WBSTs collect data, such as track vibration and temperature, which is then transmitted back to the on-train device. The proposed track monitoring system enables early hazard detection and provides valuable data for further analysis and real-time alerts, enhancing railway safety and maintenance efficiency.
Owner:THE HONG KONG UNIV OF SCI & TECH
Catch prevention device
To provide a derailment detector capable of easily being installed and an elevator with the derailment detector.SOLUTION: A derailment detector 20 comprises distance sensors 22A, 22B and a safety controller 21 (a control part). The distance sensors 22A, 22B are installed on a car 110 and detects the distance to a counterweight 120. The safety controller 21 determines the derailment presence / absence of the counterweight 120 based on the detected result by the distance sensors 22A, 22B.SELECTED DRAWING: Figure 2
Owner:HITACHI BUILDING SYST CO LTD
Anti-derailing structure of sliding door
Owner:JINHU YIZHONG CONTROL SYST CO LTD
Drainage type ballastless track bed structure
The utility model belongs to the field of tracks, and discloses a drainage type ballastless track bed structure which comprises a ballastless track bed main body, drainage mechanisms are arranged on the two sides of the ballastless track bed main body, and each drainage mechanism comprises a drainage channel, a water conveying pipe, a drainage pump and a pressurization drainage pipe, so that an efficient drainage system is formed, and the drainage capacity of a ballastless track bed can be remarkably improved. The drainage grooves formed in the bottoms of the rails are communicated with the drainage channels, and rapid drainage of accumulated water can be promoted; when the hourly rainfall is too large, the drainage pump is started, accumulated water is rapidly drained through the drainage groove, the drainage channel, the water conveying pipe and the pressurization drainage pipe in sequence, the problem that the accumulated water in the ballastless track bed structure cannot be rapidly drained is effectively solved, and therefore safe operation of a train on the ballastless track bed structure is guaranteed. And the occurrence risk of safety accidents such as train derailment is reduced.
Owner:CHINA RAILWAY XIAN GRP CO LTD
A multi-mode flat intelligent device
The utility model provides a kind of multimode flat intelligent device, it is characterized by including: with the first shell with first communication interface on multimode intercom movable connection, the second shell with operating button on it is hinged with first shell by hinge shaft, the first communication interface on first shell is inserted with the communication interface on multimode intercom, first communication interface, operating button and microcontroller in first shell or second shell are electrically connected.The existing function of multimode intercom can be used to directly connect the device, complete the operation and accurate transmission of the car control instruction, reduce the communication and waiting time in the car operation, improve the efficiency of the car operation, avoid the vehicle collision, derailment and other accidents caused by misoperation, ensure the safety of railway transportation, without changing the existing system architecture, realize the upgrading of equipment, improve the safety and practicality of equipment.
Owner:YUNNAN RUICHUANG COMM CO LTD
Self-stabilizing emergency rear brake under high-temperature working condition
The invention relates to the technical field of brakes, in particular to a self-stabilizing emergency rear brake under a high-temperature working condition, which comprises a brake main body, a track cleaning assembly, a high-temperature heat dissipation assembly and a stable guide assembly, the track cleaning assembly is detachably connected to the front end of the bottom of the brake main body, and the high-temperature heat dissipation assembly wraps the outer side of a brake caliper of the brake main body; the stable guide assemblies are symmetrically fixed to the two sides of the brake body and slidably attached to the side edges of a track, track impurities are removed in advance through the track cleaning assembly, the situation that the impurities affect the matching stability of a brake component and the track is avoided, brake heat is taken away in real time through the high-temperature heat dissipation assembly, and brake performance degradation caused by high temperature is prevented; the transverse deviation of the brake is limited through the stable guide assembly, the overall stability during emergency braking is improved, and the problems that a traditional brake is high in derailment risk and poor in braking reliability under the high-temperature working condition are effectively solved through the synergistic effect of the three components.
Owner:JIANGSU JURUI VEHICLE TECH CO LTD
Method for monitoring health state of subway train
The invention relates to the field of state monitoring, in particular to a method for monitoring the health state of a subway train, and the method comprises the steps: determining the smoothness of a track and a track stress distribution characteristic value; calculating an opposite-side rail bearing characterization coefficient of the subway train, determining a change coefficient in combination with the historical rail bearing characterization coefficient, judging whether the rail has an abnormal tendency or not, and determining a processing method; if the track does not have the abnormal tendency, the continuous monitoring state of the track on the opposite side of the subway train is kept; if the track has an abnormal tendency, determining the moving load of the subway train, calculating a derailment risk coefficient in combination with the smoothness of the track, and determining a derailment early warning state of the subway train; responding to the result of the subway train derailment early warning state, positioning a risk point, determining the running distance between the risk point and the subway train, and adjusting the running speed of the subway train; or judging that the subway train needs to be stopped. The processing method is determined by monitoring the running state of the subway train track, so that the running efficiency and the safety coefficient are improved.
Owner:BEIJING MASS TRANSIT RAILWAY OPERATION CORPORATION LIMITED
Earthquake-induced high-speed train derailment whole process state test simulation system
PendingCN119469837Aovercome mechanical propertiesImprove versatilitySustainable transportationRailway vehicle testingIn vehicleTrackway
The invention discloses an earthquake-induced high-speed train derailment whole process state test simulation system. A vehicle-track-lower foundation structure model comprises a lower foundation structure model, a track system model and a vehicle model; the acceleration system is located at one end of the track system model; the braking system is located at the other end of the track system model; the earthquake simulation device is connected to the lower foundation structure model; the monitoring system comprises a vehicle-mounted monitoring subsystem and a trackside monitoring subsystem. And the data acquisition system is used for acquiring and processing monitoring data of the monitoring system. The method is used for solving the problem that in the prior art, accurate reproduction of the whole derailment process of the high-speed train under the earthquake condition and effective assessment of the damage of the post-earthquake track structure system cannot be achieved, and the purposes of accurate reproduction of the whole derailment process of the high-speed train induced by the earthquake and effective assessment of the damage of the post-earthquake track structure system are achieved.
Owner:RAILWAY CONSTR RES INST OF CHINA ACAD OF RAILWAY SCI CO LTD +2
A deflection device for a mining cart pusher
PendingCN122078456AImprove stabilityavoid collisionRailway wheel guards/bumpersRail derailment preventionElectric machineryDerailment
This invention discloses a deflection device for a mining cart pusher, relating to the field of mining machinery and equipment technology. It includes a pusher frame, a pusher body, and a mine car. The pusher body is located inside the pusher frame, and the mine car is mounted on top of the pusher body. A mounting frame is fixedly installed on one side of the mine car, and a dual-shaft motor is fixedly installed inside the mounting frame. Screws are fixedly installed on the output ends of the dual-shaft motors, and fixing plates are threaded onto the surfaces of the two screws. Mounting plates are located on one side of each of the two fixing plates, and multiple mounting plates penetrate both sides of the mounting frame, with each mounting plate slidably connected to the sides of the mounting frame. This invention can deflect the mine car, preventing collisions or derailment between the mine car and the pusher frame, while also increasing the stability of the mine car, thus improving the practicality and safety of the mining cart pusher.
Owner:HUATING COAL GRP CO LTD +1
A rescue sub-car, a rescue parent car and a rapid rescue method of a rail train
ActiveCN117002543BSignalling indicators on vehicleItem transportation vehiclesEmergency rescueDerailment
The application discloses a rescue sub-car, a rescue mother car and a rapid rescue method of a rail train, and belongs to the technical field of emergency rescue of urban rail transit; the method comprises the following steps: derailment accident feedback: after the train derails and stops urgently, the vehicle automatically alarms the emergency rescue system to feed back the real-time situation of the derailed train; rescue vehicle emergency response: the emergency rescue system sends an instruction to a maintenance center, the rescue mother car carries multiple rescue sub-cars and rescue personnel to the nearest station of the train, the rescue sub-car travels to the platform and enters the track area; rescue sub-car wheel group conversion: the rescue sub-car is converted from a common pneumatic tire into a rubber-coated steel wheel matched with the track, and the rescue sub-car can travel along the track rapidly; classified rescue: multiple rescue sub-cars are respectively loaded with rail repositioners for coping with different derailment degrees, and cooperate to handle the train derailment accident. The application can reduce the labor intensity of rescue personnel and improve rescue efficiency.
Owner:XIANGYANG GOTOO MASCH&ELECTRONICS APPLIANCE CO LTD
Rerailing bridge rescue device
ActiveCN224256667UImprove construction efficiencyreduce construction costsDevices secured to trackArchitectural engineeringDerailment
The utility model discloses a rerailing bridge rescue device which comprises a motor vehicle, a rerailing bridge, a rotating assembly, a lifting assembly, a transverse moving oil cylinder and a jack. The rotating assembly is arranged on a motor vehicle and used for driving the re-railing bridge to rotate so that the re-railing bridge can be perpendicular to a rail. The lifting assembly is arranged on the rotating assembly, and the lifting assembly is used for driving the re-railing bridge to descend so that the re-railing bridge can fall onto a rail; the transverse moving oil cylinder is placed on the re-railing bridge and used for bearing the rail car. The rerailing bridge has the advantages that the rerailing bridge is installed on the motor vehicle in advance, the rerailing bridge can quickly reach a derailing site by means of maneuverability of the motor vehicle, extra hoisting equipment for transportation is not needed, construction efficiency is improved, and the rerailing bridge can be installed on the motor vehicle in advance and can quickly reach the derailing site by means of the maneuverability of the motor vehicle. And the construction cost is reduced.
Owner:HUBEI GOTOO RAIL TRANSIT RES INST CO LTD