87 results about "Rail wear" patented technology

The invention discloses a steel rail abrasion intelligent prediction method and system considering railway space line shape, and the method comprises the steps: S1, building a vehicle-track coupling dynamic model based on vehicle structure characteristic parameters and track structure characteristic parameters; s2, based on the vehicle-track coupling dynamic model, establishing a steel rail abrasion calculation model, and calculating inner and outer side steel rail abrasion values under different track space linear parameters to construct a steel rail abrasion sample data set; s3, constructing a steel rail abrasion prediction artificial neural network model, and training the steel rail abrasion prediction artificial neural network model by using the steel rail abrasion sample data set; s4, optimizing the trained steel rail abrasion prediction artificial neural network model to obtain a final prediction model; and S5, predicting the abrasion of the railway steel rail by using the final prediction model. According to the method, the railway space linear parameter-steel rail abrasion prediction model is established, so that the steel rail abrasion under different plane and vertical section linear parameters and combinations is efficiently and accurately obtained.

The invention relates to the technical field of artificial intelligence, and provides a rail corrugation detection method and device.The method comprises the steps that axle box vibration characteristics and vehicle operation characteristics of the rail vehicle are obtained, and the axle box vibration characteristics at least comprise vibration acceleration signals of axle boxes; the vehicle operation characteristics at least comprise a speed parameter and a load parameter of the rail vehicle and a rail curve radius; based on a corrugation detection model, obtaining a comprehensive feature vector of axle box vibration features and the vehicle operation features; based on the comprehensive feature vector, a first judgment result and a second judgment result are determined, the first judgment result is used for judging the corrugation state of the track, and the second judgment result is used for predicting the corrugation depth of the track. According to the method, the end-to-end corrugation detection model is constructed through multi-modal data fusion based on deep learning, the corrugation condition existing in the track is detected, the corrugation occurrence position and the corrugation occurrence degree can be effectively recognized, and the safety and the operation efficiency of the system are improved.

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.

The invention discloses a profile alignment-based steel rail abrasion real-time discrimination method and model, and the method comprises the steps: building a steel rail standard profile database model which is used for receiving actual measurement profile data and carrying out the real-time overlapping display; acquiring a point with the minimum vertical coordinate of the outer contour of the steel rail profile from the actually measured profile data, and overlapping the point with the minimum vertical coordinate with the reference point of the standard profile to realize primary alignment of the profile; calculating a perpendicular bisector at the rail waist of the actual measurement profile, and enabling the perpendicular bisector to coincide with the center line of the standard profile to finish rough alignment of the profile; and calculating the center point of the actually measured profile rail web, performing fitting processing to obtain a fitting center line, and enabling the fitting center line to coincide with the standard profile center line to complete profile fine alignment. According to the method, the precision of profile alignment is effectively improved, meanwhile, the influence of profile form errors on an abrasion algorithm is reduced, and then the problem of jumping during alignment of the actually measured profile and the standard profile is solved.

The invention discloses a rail transit fault detection method and system, and relates to the technical field of rail transit fault detection.A data detection and collection module is responsible for collecting rail use and train operation conditions in a current detection area and a current detection period by using sensing and collection technologies; the track wear state reflecting unit is responsible for calculating and outputting a track wear degree GM, the fault probability predicting unit is responsible for calculating and outputting a fault probability predicted value YG, and the fault maintenance priority evaluating unit is responsible for calculating and outputting a maintenance priority GWP. According to the invention, by optimizing data collection and processing, the fault detection accuracy is improved, the maintenance priority evaluation and the established closed-loop feedback mechanism are scientifically maintained, and the fault detection efficiency is improved. The application of the method and the system is helpful for improving the safety and the stability of the rail transit, and provides a powerful guarantee for the rapid development of the urban rail transit system.

The present invention discloses a radial bogie for actively controlling the swing of a wheel set around its center, which relates to the technical fields of rail transit, machinery and control; it includes a car body structure, a wheel set device, a rocker arm steering device, a center bolster device, and an electric control driving device; the wheel set device is arranged on the front and rear sides of the car body structure, the wheel set device is pin-connected with the rocker arm steering device, the rocker arm steering devices are symmetrically distributed on both sides of the center bolster device and are connected to the center bolster device, the center bolster device is pin-connected to the center position of the car body structure, and the electric control driving device is hinge-connected to the car body structure; by adopting the above-mentioned radial bogie for actively controlling the swing of the wheel set around its center, in order to enable the train to achieve the radial steering function, the kinematic principle of a multi-link mechanism is adopted, which can make the steering of the rail train have better stability, safety and reduce wheel-rail wear and noise.

The present invention relates to the technical field of wheel-rail material friction and wear. Provided is a three-dimensional wheel-rail wear map construction method taking ambient temperatures and material properties into consideration. The method comprises: 1) on the basis of wheel-rail rolling friction and wear experiments under different contact parameters, obtaining the friction and wear performance of a wheel material under the condition of different ambient temperatures and different wheel-rail hardness ratios, and constructing a function relationship between a wheel wear rate and the dissipated energy per unit area of a wheel-rail contact patch under a series of conditions with different ambient temperatures and wheel-rail hardness ratios; 2) performing function fitting on experimental data to respectively obtain a three-dimensional wheel wear map taking ambient temperatures into consideration and a three-dimensional wheel wear map taking wheel-rail material hardness ratios into consideration; and 3) selecting a two-dimensional reference wear map, and by means of normalization processing, constructing a three-dimensional wheel wear map simultaneously taking ambient temperatures and material hardness ratios into consideration. On the basis of a constructed wear map, the present invention can preferably predict a wheel wear behavior under the condition of different ambient temperatures and different material properties.

The utility model relates to the technical field of press block wear-resistant gaskets, and one embodiment of the utility model provides an automatic press block wear-resistant gasket feeding device which comprises an assembling mechanism, a centrifugal disc mechanism is arranged on the left side of the assembling mechanism, and a placing mechanism is arranged on the front side of the assembling mechanism. According to the automatic feeding device for the wear-resistant liners of the pressing blocks, the wear-resistant liners on the linear track are blown through the air pump and the air pipe, the wear-resistant liners are rapidly moved to the rightmost end of the track under the action of air pressure, and compared with a traditional automatic feeding device for the wear-resistant liners of the pressing blocks, the automatic feeding device for the wear-resistant liners of the pressing blocks blows the wear-resistant liners through the air pipe. Direct friction between the liner and the surface of the track is reduced through airflow pushing, the service life of the track is prolonged, meanwhile, the feeding speed is remarkably increased, the material blocking risk is reduced, and use is convenient; by means of the technical scheme, the technical problem of rail abrasion in the related technology is solved.

The utility model relates to production transportation technical field, the lower end of turnover rod is fixedly arranged with the connecting frame, is rotatably arranged with the brush roller in the connecting frame through the bearing, the electric telescopic rod is fixedly arranged in the middle of the bottom of the transport car body, the lower end of electric telescopic rod is fixedly arranged with the lifting frame, and the movable frame is rotatably connected with the connecting frame of two sides through the thrust ball bearing, and the both output shafts of double -shaft motor are fixedly arranged with the drive rod, and two drive rods are rotatably inserted in the inside left and right sides of lifting frame through the bearing respectively, and the drive rod is movably sleeved with no. One linkage rod, and the end of no. Two linkage rods are fixedly connected with the brush roller, and the dust collector is fixedly arranged on the upper portion of lifting frame, can carry out the cleaning to the dust, copper scrap and electrolyte etc. Pollutants accumulated on the track in the transportation process, not only avoid the wheel skidding or track wear, improve the service life of track and transport car, but also need not the manual cleaning of shutdown and influence production efficiency.

The utility model discloses a swing device of swing bogie, including H type frame, the H type frame is fixedly connected with the butt joint board for connecting train in the position of center, the top fixed connection of H type frame has two air springs, the both ends of H type frame are all rotatably connected with wheelset through bearing, and the outside fixed connection of wheelset has two limit stops, two L type boards are fixedly connected in the H type frame, and wheelset passes through L type board, the top fixed connection of L type board has two fixed blocks, and one side of two fixed blocks is all fixedly connected with the rotating plate. The utility model not only can effectively reduce the impact between wheel and rail, improve the running stability of vehicle, reduce wheel and rail wear, prolong the service life, promote the operation efficiency, but also can restrain the lateral vibration and swing of carriage in the horizontal plane, especially prevent dangerous "snake movement", ensure the running stability and safety.

The utility model provides a rail car assembly and a steel rail detection device. The rail car assembly comprises a rail car, a structured light scanner and a photoelectric encoder. The rail car is used for being movably connected to a steel rail, the structured light scanner is detachably connected to a rail car body, and the structured light scanner is used for detecting surface abrasion parameters of the steel rail; the photoelectric encoder is detachably connected to the moving wheel, the photoelectric encoder and the structured light scanner are both located on the same rail car and move along with movement of the rail car, the photoelectric encoder is used for measuring the mileage position where the rail car is located, and during operation, the photoelectric encoder detects the mileage position along with rotation of the moving wheel. The structured light scanner outputs the surface wear parameters of the steel rail along with the movement of the rail car main body, and the surface wear and damage of the steel rail are dynamically detected based on the structured light scanner instead of static detection, so that the detection efficiency of the rail car assembly on the steel rail is improved, and the continuity of steel rail wear detection is ensured.

The application provides a rail wear detection method and device, a server and a storage medium, and relates to the technical field of rails. The rail wear detection method comprises the following steps: acquiring profile point cloud data of a to-be-detected rail in a first coordinate system; segmenting the profile point cloud data to obtain rail waist point cloud data and rail bottom point cloud data of the to-be-detected rail; determining a first center coordinate corresponding to the rail waist point cloud data and a second center coordinate of the rail bottom point cloud data; correcting the first center coordinate and the second center coordinate according to an LM algorithm to obtain a corrected second center coordinate and a corrected second center coordinate; adjusting the acquired profile point cloud data; and determining the total wear of the to-be-detected rail according to the distance between the rail head point cloud data of the adjusted profile point cloud data and the rail head point cloud data of standard profile point cloud data, so that the rail wear is accurate.

The invention relates to the technical field of intelligent welding equipment, and discloses a universal welding robot intelligent turnover mechanism which comprises a bottom plate, a bottom plate connecting rail, a rail connecting sliding rail bottom frame plate, a turnover opening and closing assembly arranged on the sliding rail bottom frame plate, a clamping assembly arranged at the end, and a clamping assembly and a limiting assembly arranged in the sliding rail bottom frame plate. And a deslagging micro-lubrication assembly is arranged on the outer side of the track. The overturning opening and closing assembly drives the semicircular frame body to be opened and closed to facilitate workpiece loading and unloading, a V-shaped protruding block and a groove at the end of the frame body are used for positioning, a first gear and a clamping block in the clamping assembly are matched for meshing to lock the end, displacement and falling caused by overturning are prevented, and the structural stability is improved. A second limiting arc block of the limiting assembly is attached to a workpiece to complete position limiting, and the clamping assembly is combined to pull the fixing clamp to clamp the workpiece so as to adapt to different boundary dimensions. Rail waste residues are cleared through a deslagging micro-lubrication assembly scraping plate, a rubber wheel drives a micro gear pump to pump lubricating oil to smear the rail, slag removal and lubrication are synchronous, and rail abrasion is reduced.

The application discloses a new type of generalized zero-sample attribute recognition method for rail wear of rail transit, and comprises the following steps: acquiring a detection image and a semantic vector; extracting visual features of the detection image at multiple levels by using a visual Transformer network, and acquiring global representation information corresponding to each level; performing structured grouping and fusion of the visual features of the multiple levels based on semantic correlation to generate visual subspace features; constructing a structured semantic mask, screening and isolating attribute semantics to obtain semantic subspace representation; performing cross-modal interaction alignment on the visual subspace features and the semantic subspace representation to obtain local attribute feature expression; simultaneously acquiring global attribute feature expression; fusing the local attribute feature expression and the global attribute feature expression to generate comprehensive attribute features; and performing similarity measurement on the comprehensive attribute features and a semantic prototype to output a prediction result; and the application saves cost.

This utility model discloses a rail positioning mechanism for a gantry crane, including an iron pad. By optimizing the rail fixing structure design, this utility model significantly improves the reliability and stability of rail fixing. The positioning channel formed by two positioning plates can accurately limit the rail position, ensuring the overall geometric accuracy of the rail after installation. When the first positioning mechanism is installed on the iron pad, it can achieve initial positioning and fixing of the rail, effectively resisting the displacement risk caused by foundation vibration. Furthermore, after the second positioning mechanism is installed on the positioning plate, it forms secondary positioning and fixing, further enhancing the constraint on the rail. This dual positioning and fixing structure can effectively resist alternating loads, impact vibrations, and environmental factors, reducing irregular changes in rail spacing, avoiding poor contact between wheels and rails and rail wear, extending the service life of wheels and rails, reducing maintenance costs and downtime, and improving the operational safety and efficiency of the gantry crane.

The invention relates to a high-speed railway wheel-rail embedded wear evaluation method and system and a medium, and the method comprises the following steps: collecting actual wheel-rail data, and carrying out the data preprocessing; constructing a wheel rail wear evaluation index according to the actual wheel rail data subjected to data preprocessing; obtaining a weight coefficient of the wheel rail wear evaluation index according to the wheel rail wear evaluation index; substituting the wheel track wear evaluation indexes and the weight coefficients of the wheel track wear evaluation indexes into a total evaluation index formula to obtain evaluation scores; and performing wheel-rail wear condition evaluation on the evaluation score according to a scoring standard to obtain a wheel-rail wear evaluation result. Compared with the prior art, synchronous analysis of the abrasion conditions of the wheels and the steel rails is achieved, the accuracy of wheel rail abrasion evaluation is improved, and powerful support is provided for optimizing the maintenance strategy, reducing the operation cost and prolonging the service life of the wheel rails.

The invention discloses a bogie for an urban rail vehicle, which is used for connecting a rail and a bogie body of an urban rail carriage, and comprises two connecting shafts symmetrically arranged on the bogie body; the rolling bearings are arranged in the middles of the connecting shafts and used for adapting to speed change of the ends of the connecting shafts; the driving part is arranged on the bogie body and used for driving the connecting shafts on the two sides of the rolling bearing to rotate; the balance sensor is arranged on the bogie body and used for detecting the balance state of the bogie body and detecting that the bogie body passes through a track curve; the brake mechanism is used for braking the connecting shafts on the two sides of the rolling bearing respectively; and the power recovery part is used for recovering variable-speed kinetic energy of the connecting shafts on the two sides of the rolling bearing and controlling the connecting shafts to decelerate. When the bogie turns, the speed of the wheels is adjusted in a self-adaptive mode, the attaching degree of the wheels and the track is improved, abrasion of the wheels and the track is avoided, the service life of the wheels and the track is prolonged, and potential safety hazards are reduced.

This invention discloses a metro wheel-rail matching method based on wear evolution and vehicle-rail dynamics characteristics, belonging to the technical field of metro wheel-rail matching methods. It selects three hardness states of commonly used wheels and rails, establishes an iterative calculation model for wheel-rail wear, and calculates the wear evolution results of wheel and rail profiles under different hardness conditions. Under typical metro curve conditions, it matches the wear profiles of wheels and rails at the same service stage and conducts vehicle-rail dynamics simulation, collecting key indicators such as derailment coefficient and lateral creep rate. Finally, it constructs a comprehensive evaluation method for nine wheel-rail hardness matching schemes, selecting the wheel-rail hardness matching scheme with better dynamic response. This method overcomes the limitations of traditional empirical matching and matching based on single test results. Through comprehensive analysis of material hardness, wear profile, and dynamic performance, it obtains a hardness matching evaluation system for the long-term service evolution of wheels and rails, providing a complete hardness matching basis for metro wheel-rail systems.

The invention provides a compound intersection turnout linetype optimization method, and belongs to the technical field of rails, and the method comprises the steps: determining the main size of a turnout; selecting a turnout guide curve radius, and widening a turnout gauge; based on turnout tie spacing arrangement and structural requirements, the theoretical distance between the point of a turnout switch rail and the point of an acute frog is determined; reducing the tip angle of the curved switch rail, and increasing the width of a semi-tangent rail head and the length of a tip linear section; the curve switch rail point railhead width is determined, a plane linetype optimization method without gauge widening is achieved, large-radius and small-radius curves are organically combined, and the wheel rail transverse force can be effectively reduced. The large radius provides a gentle steering path, so that the centrifugal acceleration is obviously reduced, and the transverse acting force between wheel rails is reduced; the small radius meets the terrain or operation requirements, and on the premise of guaranteeing driving safety, turnout wheel track abrasion is reduced, noise vibration is reduced, and the service life of the track is prolonged. It is suggested that a large-radius and small-radius combined mode is adopted to reduce the dynamic response of the compound dividing turnout.

This invention provides a method and system for monitoring elevator guide rail wear and deviation, relating to the field of elevator inspection technology. The method includes the following steps: When the elevator under test is running, acquiring the elevator's operating status data and determining whether an anomaly has occurred based on the operating status data; when an anomaly occurs in the operating status data, acquiring an image of the guide rail and extracting features from the image to obtain corresponding guide rail image operating features; simultaneously, extracting features from the initial image to obtain corresponding guide rail initial image features; calculating the similarity between the guide rail image operating features and the initial image features; and analyzing the operating image and the initial installation deviation based on the similarity calculation results to obtain the elevator guide rail wear deviation calculation results. This invention can accurately identify the degree of wear and deviation of the guide rail, improving detection accuracy.

The application discloses a kind of track traffic wheel rail wear prediction methods of fusion data, comprising the following steps: physical model data acquisition: obtain physical model data profile evolution matrix A;Measured data acquisition: obtain measured profile evolution matrix B;Data layer fusion: physical model data and measured data are fused, and profile evolution matrix C is obtained;Prediction model establishment: the convolution-multiple recurrent neural network architecture for wear prediction is established;Prediction model training: physical model data and field data are used as input, and prediction model is trained;Wear prediction: input a section of physical model data and field data fusion matrix C * , and profile wear matrix D is output by prediction model.The method proposed in the application can give full play to the advantages of physical model and field measured data, carry out data fusion in input layer, improve the generalization of prediction network model, widen the effective length of prediction time, and improve prediction accuracy.

The invention belongs to the technical field of rail transit operation and maintenance materials, and discloses an environment-friendly wheel track wear-resistant protective material and a preparation method thereof. The raw materials comprise a base material, a rheology regulator, a wetting regulator, a friction regulator, a solid lubricant, an antirust agent and a fluid. The environment-friendly wheel track wear-resistant protective material prepared by integrating nano-compounding and environment-friendly passivation technologies has the characteristics of high wear resistance, strong adhesion and environment friendliness, realizes high wear resistance, strong adhesion and rust construction capability of the surface of a steel rail, is suitable for long-acting protection of wheel track contact surfaces of road sections such as a track traffic heavy haul railway curve, a turnout zone and the like, and has a good application prospect. And the maintenance cost and the environmental pollution are obviously reduced.

The invention belongs to the field of noise processing, and provides a method and system for controlling noise based on wheel equivalent taper steel rail abrasion filtering. The method comprises the steps that the relation between the equivalent taper and the transverse acceleration of a framework is calculated in a simulation mode, and the condition for triggering the bogie instability alarm is determined; meanwhile, in combination with vehicle vibration data, the early warning limit values of wheel polygons and rail corrugation are optimized; when any one of a bogie instability alarm condition, an early warning limit value not lower than a wheel polygon and an early warning limit value not lower than steel rail corrugation is met, a current noise signal in the vehicle is obtained; and performing filtering control on the current noise signal in the vehicle, judging whether the noise signal after filtering control is within a preset normal range or not, if so, outputting the noise signal after filtering control, and if not, re-judging whether the bogie is overhauled or not. The noise in the vehicle can be reduced, and the comfortable experience of passengers is improved.

The invention relates to the technical field of rail grinding, in particular to rail grinding equipment for repairing steel rail abrasion. The device comprises a detection assembly, the detection assembly comprises a vertical rod, the vertical rod is axially arranged on one side of a side plate in a sliding mode, the bottom of the vertical rod is horizontally and rotatably connected with a detection wheel, one side of the vertical rod is provided with a first gear, and the side, away from the vertical rod, of the first gear is connected with a second gear in an engaged mode. When the detection wheel is in contact with a welding seam or other protrusions on a rail, the detection wheel is jacked up and drives a vertical rod to slide upwards, in the process, the vertical rod drives a first gear and a second gear to rotate, and the second gear synchronously drives a sliding block to slide upwards and pulls a second compression spring to be in a loose state; therefore, the grinding wheel falls to be attached to the surface of the rail only by means of the gravity of the grinding wheel when falling from the salient point, and the grinding wheel is prevented from hitting the rail surface with pressure which is multiple times of a set value after crossing a welding seam, so that a grinding pit is formed.

The utility model relates to the technical field of steel rail abrasion measurement, in particular to a continuous steel rail abrasion measuring instrument, which comprises a shell, the data acquisition unit and the data processing unit are mounted on the shell; the clamping frame is in sliding connection with the shell and forms a first sliding direction parallel to the width direction of the steel rail; the clamping frame and the shell are each provided with a clamping side depended wheel, and the clamping side depended wheels are tightly attached to the side wall faces of the two sides of the steel rail. A first elastic piece is arranged between the clamping frame and the shell so that the clamping side depended wheels on the two sides of the steel rail can get close to each other. Supporting wheels are arranged between the clamping frame and the shell and abut against the top face of the steel rail. And the data acquisition unit comprises a top grinding laser measurer and a side grinding laser measurer. When the measuring instrument is used, the clamping side depended wheel can stably slide along the steel rail after clamping the side wall surface of the steel rail, and can continuously measure the steel rail in the movement process of the measuring instrument in cooperation with laser measuring equipment, so that the measurement of a section of steel rail is quickly completed.

The utility model relates to the technical field of rail detection, and discloses rail wear degree detection equipment, which comprises a rotating plate arranged on one side of a rail body, a plurality of sleepers arranged at the bottom of the rail body, the rotating plate mounted on one side, close to each other, of two sleepers, a moving plate mounted in the rotating plate, and the moving plate is connected with the rail body. And a fixed plate is mounted at the top of the movable plate, the two mounting plates are arranged at the end, close to the rail body, of the fixed plate, laser two-dimensional sensors are mounted in the two mounting plates correspondingly, and knocking mechanisms are arranged at one ends of the two mounting plates correspondingly. According to the utility model, the detection equipment is arranged between the two sleepers, so that the rail body can be conveniently detected at regular intervals, a worker does not need to spend more time in debugging the detection equipment, and the rail body is automatically detected by virtue of the two laser two-dimensional sensors, so that the detection precision of the wear degree of the rail is improved; and the rail wear degree detection efficiency can be improved, and the running safety of the rail can be guaranteed.

The invention provides a wheel wear experiment device considering a wheel profile, and relates to the field of railway experiment equipment. Comprising a test bench main body, a lower platform part, an upper platform part, a transverse loading part and a vertical loading part, the lower platform part is arranged on the test bench main body, and the lower platform part is rotatably provided with two rollers; the upper platform component is arranged above the lower platform component and comprises an upper platform, a first driving piece, an upper mounting base and a first connecting shaft assembly. By arranging the transverse loading part, the position of the first connecting shaft assembly in the horizontal direction is changed through the transverse loading part in the experiment process, so that a wheel transverse deviation scene is simulated; the load borne by the roller is changed by adjusting the vertical loading part, and wheel rail abrasion scenes under different loads are simulated; the contact relation of wheel rails is changed by setting different tapers of an adjusting base plate in the upper platform part, so that an ultrahigh scene under a curve working condition is simulated, and an abrasion experiment result is more accurate.

The present application relates to the technical field of rail transit engineering, and especially relates to a kind of adjustment and maintenance method of anti-derailment guard rail, guard rail support and sleeve shoe elastic pad block are designed as eccentric structure, the sleeve shoe elastic pad block is sleeved on the guard rail support, the guard rail is arranged above the sleeve shoe elastic pad block, the guard rail support and the sleeve shoe elastic pad block have installation surface with different thicknesses in front and back;By selecting and combining the different installation surfaces of guard rail support and sleeve shoe elastic pad block, the width of flange groove is adjusted according to design requirements when installing guard rail.The present application has the advantages that: it can effectively deal with the problems of wheel rail lateral force of train wheel during operation, rail wear, track gauge expansion, component wear and replacement, corrosion and the like, ensures the reliable anti-derailment function of guard rail, and fills the design blank of such fine adjustment and quick maintenance type anti-derailment guard rail.

The invention discloses a steel rail surface state evaluation method and device fusing multiple rapid detection technologies, and the method comprises the steps: obtaining ultrasonic detection data, magnetic flux leakage detection data, rail profile detection data, inspection detection data and steel rail ledger data, and carrying out the data alignment; preprocessing the detection data after data alignment to generate ultrasonic surface flaw data, magnetic flux leakage surface flaw data, rail profile surface flaw data and inspection surface flaw data; determining a steel rail surface defect evaluation result; and determining a final steel rail surface state evaluation result based on the steel rail surface defect evaluation result and a pre-established steel rail abrasion evaluation model. The advantages of multiple rapid detection technologies are fused, comprehensive and accurate evaluation of the steel rail surface state is realized, scientific and reliable data support is provided for making a steel rail maintenance strategy, and the method is suitable for popularization and application. Resource waste is effectively avoided, cost is reduced, and train operation safety is guaranteed.

The invention discloses a train braking and wheel track abrasive dust particle classification collection and detection device and method. The device comprises a train braking test bed, a discharge loop, a braking system, an isolation cavity, a particle classification filtering collection device, a filter screen and a particle sedimentation collector. The braking system is arranged in the isolation cavity, and the isolation cavity is communicated with the particle grading, filtering and collecting device through the discharging loop. A multi-stage filter screen and a particle settling collector are sequentially arranged in the particle grading filtering and collecting device from top to bottom, a dynamic detection opening is formed in the side face, a particle concentration detection device is externally connected, and blocking is effectively avoided by monitoring the concentration change of particles in the device in real time and dynamically adjusting the running state of the filter screen. The device is suitable for particle detection and particle size division collection under various brake disc materials, brake pad installation modes and complex brake working conditions, particles generated by friction of a brake system and a wheel track can be detected respectively or simultaneously, and technical support is provided for research on environmental protection and performance optimization of a train brake system.