224 results about "Rail line" patented technology

An intelligent fault-in-rail analysis method based on multimodal fusion learning. Ultrasonic analysis data of the rail and high-definition rail surface images taken by line scan cameras are exploited in combination to detect and display internal and surface faults of the rail through different renditions using multimodal data. Rail DEtection TRansformer (R-DETR) technology or a You Only Look Once (YOLO) inspection machine-learning algorithm are employed in a deep convolutional neural network to analyze B-scan and rail surface image data to recognize rail line faults. After obtaining expressive data through data enhancement by computer processing, faults are recognized and pinpointed using the deep convolutional neural network learning algorithm. Analysis results are corrected with expert systems. The disclosed automatic ultrasonic fault-in-rail inspection solves the problem of slow detection and difficulties in tracking faults in everyday routine maintenance while also protecting the safety of rail operation and maintenance personnel.

The invention discloses an operation optimization method, system and equipment for cooperative carbon reduction of an intelligent rail line network, and relates to the technical field of energy-saving scheduling and low-carbon operation of urban public transport. A refined section-level energy consumption and carbon emission quantitative model is constructed based on dynamic characteristics of intelligent rail vehicles and carbon emission factors of a power grid; a deep learning network is used for fusing multi-source data to carry out cross-line short-time passenger flow prediction, real-time passenger flow demands, energy consumption and carbon emission indexes and intersection signal phase time window constraints are uniformly incorporated into a multi-target collaborative optimization framework, and solving is carried out through mixed integer linear programming in a rolling vision field. According to the method, combined optimization and dynamic closed-loop control of departure intervals, section operation speeds and road right strategies are realized, so that the total operation energy consumption and carbon emission of the intelligent rail line network are remarkably reduced on the premise of ensuring passenger flow transportation requirements and service quality, and the line network level energy-saving and carbon-reducing operation targets are achieved.

The invention discloses an urban rail vehicle simulation driving training method and system based on scene simulation, and belongs to the technical field of driving simulation, and the method specifically comprises the steps: collecting rail line parameters, weather data, passenger flow density, vehicle equipment state and driving data in real time, carrying out the preprocessing, constructing a dynamic personalized simulation scene, and simulating driving operation. According to operation of a driver and a preset simulation scene, micro features of eye-brow areas of the driver are recognized, the psychological stress of the driver is analyzed in combination with historical data, the simulation scene is dynamically adjusted according to a psychological stress analysis result, the performance of the driver in the training is scored according to a preset evaluation standard, and a detailed training report is generated. According to the method, pressure analysis is carried out on the eyebrow area, pressure evaluation is carried out in combination with the physiological dimension, the pressure of the driver in a simulation scene can be judged in real time, different simulation scenes are provided for different drivers, and the training effect is greatly improved.

The invention relates to a railway line rail fixing structure device, and relates to the technical field of railway track fixing, and the railway line rail fixing structure device comprises a fixing seat used for supporting a steel rail; the two embedded iron bases are located on the two sides of the fixing base correspondingly; the limiting device comprises two fixing assemblies, a buffering assembly and an adjusting assembly, and the two fixing assemblies are symmetrically arranged on the two sides of the steel rail and used for fixing the steel rail and the fixing base; the two buffering assemblies are symmetrically arranged on the two sides of the steel rail and used for buffering and damping vibration generated by acting force on the steel rail when a train passes through the steel rail. The adjusting assembly is arranged between the two buffering assemblies and used for adjusting the distance between the two buffering assemblies. The rail fixing structure has the effects that the mounting process of the rail fixing structure is simplified, the deformation resistance of the rail fixing structure is improved, and the risk of deformation or displacement of the steel rail due to external force is reduced.

The invention discloses a virtual reality interactive simulation system based on high-speed rail line maintenance, and belongs to the technical field of high-speed rail line maintenance simulation. The system comprises a virtual scene construction unit, an operation action capture unit, a rule verification unit, a difference calculation unit, an abnormity positioning unit and a comprehensive risk prompting unit. The virtual scene construction unit generates a standardized virtual scene model by using high-speed rail line maintenance manual data and real-time equipment state information; the operation motion capture unit captures a user three-dimensional space coordinate sequence and outputs motion track data; the rule verification unit compares the action track data with a preset maintenance rule base and outputs an operation compliance judgment result; the difference calculation unit calculates an operation deviation measure; an abnormal positioning unit positions an abnormal operation physical position; and the comprehensive risk prompting unit generates a maintenance risk grade identifier. The system provides a simulation environment for maintenance personnel, and carries out real-time monitoring and feedback operation.

The invention relates to the technical field of railway line planning, in particular to an improved SAC railway line planning method based on course learning, and the method comprises the steps: modeling a three-dimensional line selection environment; constructing an improved SAC decision model, and designing a 100-dimensional state space including topographic features, forbidden zone positions and unfavorable geological risks; constructing a reward function fusing engineering cost, terrain fitness and invalid action penalty; curriculum learning staged training is carried out; and generating and optimizing a line scheme. According to the improved SAC railway line planning method based on course learning, a continuous action space decision framework based on the SAC algorithm can effectively solve the high-dimensional continuous action optimization problem of railway line selection. By designing a multi-dimensional fusion state space, a continuous action space based on a proportionality coefficient and a reward function based on target guidance, the adaptability of the intelligent line selection model to topographic features is remarkably improved.

Provided are a boarding apparatus and a boarding apparatus control method. The boarding apparatus comprises a control module (10), a motion actuator (11), a boarding step (12), and an obstacle detection sensor (13). Controlling the movement of the boarding step by means of the motion actuator solves the problem of the boarding apparatus being restricted by infrastructure under different rail lines, thereby making the boarding apparatus more flexible and convenient; in addition, obstacle detection is performed by means of the obstacle detection sensor during the movement of the boarding step, and when an obstacle has been detected, the obstacle detection sensor can feed back a detection signal to the control module, which in turn controls the motion actuator to adjust the position of the boarding step, so as to prevent collisions and squeezing between the boarding apparatus and the obstacle, thereby enhancing the safety of the boarding apparatus.

The invention provides a multi-algorithm cooperative positioning method for a Beidou single-mode terminal of a railway locomotive, which belongs to the technical field of railway communication and positioning, and comprises the following steps: firstly, receiving a positioning signal flow which is sent by a Beidou satellite and contains a propagation path identifier, and carrying out shunt processing on a satellite signal unit; a direct signal is imported into a basic positioning algorithm module, a reflected signal is imported into an auxiliary positioning algorithm module, an initial positioning result and path correction information are obtained, then the initial positioning result and the path correction information are subjected to correlation verification, intermediate positioning data are generated, the intermediate positioning data are subjected to constraint adaptation based on railway line track feature information, and a constraint positioning result is obtained. Finally, the signal processing priority of the algorithm module is dynamically adjusted according to the constraint positioning result, final positioning information is generated and sent to a locomotive monitoring terminal, and therefore the accuracy and reliability of railway locomotive positioning can be effectively improved.

The energy-saving and consumption-reducing heat preservation structure comprises a heat preservation type vehicle body and a heat preservation type floor arranged at the lower end of the heat preservation type vehicle body, a vehicle window heat preservation structure is arranged at the connection position of a vehicle window installation opening and a vehicle window of the heat preservation type vehicle body, and a vehicle door heat preservation structure is arranged at the connection position of a vehicle door installation opening and a vehicle door of the heat preservation type vehicle body. A sealing heat preservation structure is arranged at the position of a through hole formed in the heat preservation type vehicle body and used for installing small parts. A heat preservation type movable floor covers the access hole of the heat preservation type floor, one end of the heat preservation type movable floor is hinged to the corresponding position of the access hole, and the other end of the heat preservation type movable floor is detachably and fixedly connected with the heat preservation type floor through a triangular lock. By optimizing the thermal insulation structure of the track engineering machinery vehicle, the defect of large temperature difference inside and outside the vehicle caused by large temperature difference between south and north climate of the track engineering machinery vehicle is overcome, the energy consumption of refrigeration of an air conditioner and heating power of an electric heater is effectively reduced, the requirements of high-speed railway lines in different regions at present are met, and the thermal insulation performance, safety and comfort of the whole vehicle are ensured; the energy consumption is reduced.

The utility model belongs to the technical field of rail transit cleaning, and relates to a movable spraying weeding device for rail transit, which comprises a vehicle body, a pesticide storage box, a fixed spraying mechanism and a movable spraying mechanism, the vehicle body moves along a track line; the pesticide storage box is fixed on the vehicle body; the fixed spraying mechanism is communicated with the pesticide storage box; the movable spraying mechanism is communicated with the pesticide storage box; in the moving process of the vehicle body, the fixed spraying mechanism sprays weeding agents to weeds close to the track, the movable spraying mechanism sprays weeding agents to weeds far away from the track, the fixed spraying mechanism and the movable spraying mechanism are matched with each other, it is guaranteed that the weeding agents cover the weeds comprehensively without dead corners, spraying blind areas are avoided, and the weeding efficiency is improved. The weeding effect is improved; meanwhile, by adjusting the height and angle of the movable spraying mechanism, the coverage range of the weeding agent is dynamically adjusted according to the growth condition of the weeds, it is further ensured that the weeding agent effectively covers most weeds, and the weeding effect is improved.

Embodiments of the present application disclose a method and system for positioning a rail transit train. Ultra-wideband (UWB) ground sensors are arranged on a rail line, and UWB vehicle-mounted sensors are arranged at set positions of the train. The UWB vehicle-mounted sensors include a UWB vehicle-mounted host and a UWB vehicle-mounted antenna that are connected to each other. The method includes: collecting distance information between the UWB ground sensors and the UWB vehicle-mounted antenna; calculating the spatial coordinates of the UWB vehicle-mounted antenna by using the distance information and the coordinates of the UWB ground sensors; and determining the positioning information of the train according to the spatial coordinates of the UWB vehicle-mounted antenna. Through the solution of this embodiment, the active positioning function of the mountain rail transit train is realized, and the positioning accuracy requirements are met.

The invention discloses a high-speed rail line gale prediction system and method, and relates to the technical field of high-speed rail gale prediction. The system for predicting the gale along the high-speed rail comprises a multi-scale grouping representation module, a comprehensive prediction module and a data enhancement module, the multi-scale grouping representation module is used for generating a wind speed preliminary prediction value; the comprehensive prediction module is used for generating a final wind speed prediction value; the data enhancement module expands the diversity of the original wind speed data set. Based on the high-speed rail line gale prediction system, the high-speed rail line gale prediction method comprises the following steps: grouping multi-scale data; carrying out multi-dimensional attention feature fusion; calculating a preliminary predicted value; calculating a final predicted value; carrying out combined optimization training; expanding an original wind speed sample; and performing consensus enhancement training. The method has the advantages that through collaborative design of multi-scale feature fusion, dynamic adaptive weighting and unsupervised enhanced training, the three core problems of sudden wind speed report missing, noise sensitivity and marking dependence in high-speed rail gale prediction are solved, and the operation efficiency and safety of high-speed rail lines are improved.

The utility model relates to the technical field of railway construction, and provides a drilling-free supporting template adjusting and fixing device which is used for locking supporting templates and a protective wall, the number of the supporting templates is two, the two supporting templates are arranged on the same side of the protective wall in parallel, the length direction of the supporting templates is the same as that of the protective wall, and each supporting template comprises a connecting beam, a limiting plate and a hanging piece, the connecting beam is used for being placed between the two supporting formworks in a lap joint mode. The limiting plates are arranged below the ends of the connecting beams and located on the outer sides of the supporting formworks, and the limiting plates are used for being locked with the supporting formworks. One end of the hanging piece is used for being hooked on the protective wall, and the other end of the hanging piece is connected with the limiting plate close to the protective wall. According to the technical scheme, the problems that in the prior art, when a railway line is laid on the bridge base, positioning holes are generally drilled in the bridge base, the supporting formwork is fixed to the bridge base through cooperation of locking pieces and the positioning holes, construction wastes time and labor, and the construction efficiency is low are solved.

The utility model relates to the technical field of geotechnical engineering and railway construction, and particularly discloses a vibration reduction and deformation resistance steel sheet pile for deep foundation pit engineering close to an existing railway line, which comprises a steel sheet pile, a vertical load-bearing steel bar, a connecting component, a vibration isolation and reduction interlayer and a protective steel plate. By adopting a composite structure form of steel sheet piles, vibration isolation and reduction interlayers and vertical load-bearing steel bars, the structure reinforcing function and the vibration isolation function are organically combined, and a brand-new supporting structure system is formed; the vertical stressed steel bars are matched with the vibration isolation and reduction interlayer and the damping spring shock absorbers, the vertical stressed steel bars mainly share tensile stress to improve the stress state, the vibration isolation and reduction interlayer mainly absorbs vibration energy to weaken vibration transmission, and the comprehensive performance of the steel sheet pile is remarkably improved through the combined action of the vibration isolation and reduction interlayer and the damping spring shock absorbers; meanwhile, according to the scheme, by optimizing arrangement of the vertical load-bearing steel bars, selection of vibration isolation and reduction materials and arrangement of connecting components, the whole structure has the good reinforcing effect and vibration reduction performance, and construction convenience and economical efficiency are taken into consideration.

The application discloses a kind of railway three-dimensional geographic scene data service production methods based on red blue stereo sheet, comprising: S1, preparation basic data, S2, organization data, S3, production stereo sheet, S4, associated railway line position data, S5, stereo scene map service release.The method of the application constructs stereo pair using aerial survey original aerial photograph, generates red blue stereo sheet, realizes that only low-cost red blue glasses can be viewed stereo scene;Through the analysis of stereo pair coverage and railway mileage point positioning information, the association of stereo pair and railway line position is realized, and the interested area is quickly searched and positioned;By making red blue stereo sheet into standard format map service data and publishing service, multiple users can be quickly called and observed through network transmission.

This invention discloses an intelligent early warning system and method for railway line patrol safety based on edge computing, involving intelligent safety early warning in the railway transportation field, enabling real-time controllable emergency measures to minimize the negative impact of incidents. The edge computing-based intelligent early warning system for railway line patrol safety includes: a cloud platform for an intelligent patrol system along the railway line, network infrastructure units for the intelligent patrol system along the railway line, on-site edge intelligent early warning devices and traffic control units, and IoT video sensing infrastructure units. This invention aims to deploy edge computers to continuously analyze 24-hour video streams from surveillance cameras at key locations along the railway line, process data in real-time, reduce latency, promptly identify abnormal events, take temporary emergency measures as quickly as possible, and rapidly report abnormal events, effectively shortening response time, significantly improving the efficiency of handling abnormal events in railway transportation, enhancing the accuracy of emergency measures, and ensuring railway line safety.

The utility model relates to the technical field of railway vehicle safe operation, and discloses a railway vehicle flexible car stop which comprises a mounting frame, fixing plates are fixedly connected to the periphery of the bottom of the mounting frame respectively, speed reduction assemblies are arranged at the bottoms of the fixing plates, a buffer is arranged at the top of the mounting frame, and a baffle is fixedly connected to the outer portion of the buffer. An adjusting assembly is arranged in the baffle; the speed reduction assembly comprises a connecting plate, the connecting plate is fixedly connected to the bottom of the fixing plate, a cushion block is fixedly connected to the bottom of the connecting plate, two damping rails are connected to the outer portion of the cushion block through first bolts, and railway lines are arranged at the opposite positions of the two damping rails. According to the utility model, a railway line is clamped by the damping rail, so that strong friction force generated by the first friction plate and the second friction plate brakes a vehicle from the bottom. The magnitude of the friction force is in direct proportion to the impact force of the vehicle, so that the kinetic energy of the vehicle can be effectively consumed, and the speed of the vehicle can be reduced within a short distance.

The invention relates to the technical field of rail transit unmanned driving, in particular to a rail line detection method and device based on dynamic circle intersection-parallel ratio loss function optimization, and the method comprises the steps: training a rail line detection model through employing a marked rail line image, and obtaining a prediction coordinate point of a rail line; according to the predicted coordinate points and the real coordinate points of the orbital line, constructing a total loss function according to a circle intersection-union ratio; and training a track line detection model by using the total loss function, and detecting a to-be-detected track line image by using the trained track line detection model. According to the method, the detection precision of the curved track line is improved, the limitation that a traditional model training method needs manual parameter adjustment is avoided, and a solution with higher robustness is provided for track line detection in a complex environment.

The embodiment of the utility model provides a railway line power supply monitoring system, and belongs to the field of railway line monitoring. The monitoring system comprises a thermal imaging camera which is fixed on a pole tower of a railway line through a camera shooting fixing device so as to acquire an image of on-site pole tower electrical equipment in real time; the platform warning module is used for analyzing the image acquired by the thermal imaging camera and giving a warning when the image is abnormal; the storage module is used for storing the images and warning information of the on-site tower electrical equipment acquired by the thermal imaging camera; the network transmission module is wirelessly connected with the thermal imaging camera, the storage module and the platform warning module so as to transmit information acquired by the thermal imaging camera to the storage module and the platform warning module; and the solar cell panel is connected with the thermal imaging camera so as to supply power to the thermal imaging camera. The monitoring system can monitor the railway line in real time.

The invention discloses a method and a device for judging network access perception degradation, electronic equipment and a storage medium. The method comprises the steps that a first object of a target line is determined, the target line comprises a plurality of first cells, and the first cells are the network coverage range of a communication base station of each high-speed rail station on the target line; determining a third index based on the association degree of the first index and the second index; the first index is a key quality index of each first cell network, and the second index is an index of a network operation state and network technical performance of each first cell; the third index is a first index strongly related to the internet surfing perception of the first object; determining a first index threshold value of the third index, and determining a second object based on the third index and the first index threshold value; the second object is an object with degraded internet access perception in the first object; and determining the distribution condition of the second object in each first cell, and determining an abnormal cell according to the distribution condition. According to the method, the wireless network sensing condition of the high-speed rail line can be accurately judged.

The utility model provides a double-supporting-plate tool arranging machine which comprises a working base, a driving rail line pedestal, a large translation dragging plate, a small dragging plate, a main shaft portal frame, a telescopic arm, a working table and a rotating main shaft. The driving rail line pedestal is fixedly installed at one end of the surface of the working base, and the large translation dragging plate is installed on the driving rail line pedestal in a sliding mode; the small carriage is mounted on the translation large carriage in a sliding manner; the main shaft portal frame is fixedly mounted at the other end of the surface of the working base, the portal frame rail line is fixedly mounted at the top of the main shaft portal frame, and the telescopic arm is slidably mounted on the portal frame rail line; the workbench is installed at one end of the telescopic arm in a sliding mode. The rotating main shaft is mounted in the main shaft portal frame; due to the arrangement of the small dragging plate and the working table, flexibility is high, cutters can be rapidly replaced, and various machining technologies can be carried out on one machine.

The utility model discloses an efficient and accurate-positioning packaging box conveying track line, belongs to the technical field of packaging box conveying devices, and solves the problems of high labor intensity, low production efficiency and potential safety hazards in the prior art. Comprising a rack, a feeding inlet and a discharging outlet are formed in one end of the rack in parallel, and a feeding conveying line and a discharging conveying line are arranged between a working platform at the other end of the rack and the feeding inlet and between the working platform at the other end of the rack and the discharging outlet respectively; a material taking transverse moving conveying mechanism and a finished product transverse moving conveying mechanism are arranged at the ends, close to the working platform, of the feeding conveying line and the discharging conveying line correspondingly, a feeding lifting stopper is arranged on one side of the material taking transverse moving conveying mechanism, and a discharging lifting stopper is arranged on one side of the finished product transverse moving conveying mechanism. And material box uncovering mechanisms are arranged on the two sides of the working platform correspondingly. The automatic material box conveying device is reasonable in design, compact in structure, capable of automatically conveying material boxes to a production area, low in labor intensity, accurate in positioning of material box conveying, convenient to operate, high in production efficiency and high in practicability.

1. Name of the designed product: Railway walking plate. 2. Use of the designed product: Used for the platform walkway plate of the railway line patrol inspection platform. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

The application discloses a long-distance rail recognition and obstacle detection method and system, a long-focus optical system is combined with a super-high-speed industrial camera on a hardware level to build a high-frame-rate and long-distance optical detection system, a region of interest for obstacle detection is demarcated by recognizing and visually segmenting left and right rail lines on a software level, and a target detection-based track obstacle intrusion detection algorithm and other advanced visual tasks are executed, and finally high-frame-rate recognition and detection of long-distance rails and track obstacles are realized. The Schmidt-Cassegrain optical system with a focal length of 2000mm is combined with a super-high-speed industrial camera with a resolution of 1920*1080 and 3000 frames per second to build a long-distance high-frame-rate optical detection platform and erect on a driving position of a train, railway conditions within a range of 6km are detected in real time, and serious accidents caused by a too long braking distance of the train due to high-speed driving can be prevented. Compared with traditional train driver eye observation and laser radar scanning imaging modes, a long-distance optical observation platform and a rear-end real-time detection system can realize a longer detection distance, better detection and recognition robustness and a higher frame rate.

A measurement vehicle (100) is provided with a first laser scanner (111) and a second laser scanner (112) that are used for measuring overhead wiring, and a first slide mechanism (115) and a second slide mechanism (116). When the measurement vehicle (100) travels on a road, the first slide mechanism (115) and the second slide mechanism (116) slide in the transverse direction to fit within the width of the vehicle, thereby placing the first laser scanner (111) and the second laser scanner (112) within the width of the vehicle. When the measurement vehicle (100) moves along a railway track to measure overhead wiring, the first slide mechanism (115) and the second slide mechanism (116) spread to the outside of the width of the vehicle to place the first laser scanner (111) and the second laser scanner (112) outside the width of the vehicle.

The invention provides an intelligent rail line shared charging resource-oriented vehicle SOC optimal scheduling method, relates to the technical field of rail traffic scheduling control, and solves the problem of unreliable charging scheduling of a multi-line intelligent rail vehicle in a shared charging resource environment. According to the method, a rolling time domain scheduling framework is established, and unified state information of vehicles, vehicle depots and a power grid is constructed; then calculating a target SOC of the vehicle for executing the next task, and constructing a corresponding charging scheduling constraint condition; a space-time coupling model of the station track and the charging pile resources continues to be constructed, and space-time resource occupation constraints are represented; and constructing and solving a joint optimization model based on the acquired or constructed various information, synchronously deciding the parking station track and time period, charging pile distribution, charging duration and charging power of the vehicle, generating a corresponding instruction, and issuing the instruction. According to the method, the utilization efficiency of charging resources under the multi-line shared vehicle depot is remarkably improved, and the vehicle on-line punctuality rate and the system transport capacity guarantee capability are improved.

This invention discloses a rapid prediction method for rail rolling contact fatigue damage in the field of rail damage prediction technology. The method includes establishing a three-dimensional elastoplastic wheel-rail cyclic rolling contact finite element model, improving the cyclic plastic constitutive model, and simulating the stress-strain evolution of the rail. A rail stress-strain sample library is generated through parametric sampling and batch calculation. A Physically Constrained Generative Adversarial Network (PC-GAN) is constructed, embedding physical constraints such as contact force conservation and energy consistency into the loss function to achieve rapid and high-precision mapping from operating parameters to the stress-strain field. Based on the PC-AN prediction results, cumulative damage and fatigue life are calculated using an incremental multiaxial fatigue damage model, and a damage distribution map of the entire rail line is drawn, identifying high-risk sections. This invention deeply integrates physical modeling with intelligent algorithms, achieving an order-of-magnitude improvement in rail fatigue damage assessment efficiency while ensuring prediction accuracy, providing efficient and reliable technical support for rail life assessment and maintenance decisions across the entire rail line.

Provided is a track engineering mechanical vehicle heat preservation device, which comprises a heat preservation type vehicle body and a heat preservation type floor arranged at the lower end of the heat preservation type vehicle body, a window heat preservation structure is arranged at the window mounting opening and the window connecting position of the heat preservation type vehicle body, a door heat preservation structure is arranged at the door mounting opening and the door connecting position of the heat preservation type vehicle body, and a sealing heat preservation structure is arranged at the through hole for small part mounting on the heat preservation type vehicle body; a heat preservation type movable floor is arranged at the access opening of the heat preservation type floor, one end of the heat preservation type movable floor is hingedly connected to the corresponding position of the access opening, and the other end of the heat preservation type movable floor is detachably fixedly connected to the heat preservation type floor through a triangular lock. The heat preservation structure of the track engineering mechanical vehicle is optimized, the problem that the temperature difference between the inside and outside of the track engineering mechanical vehicle is large due to the large temperature difference between the north and south climates is solved, the energy consumption of the air conditioner refrigeration and the electric heater heating power is effectively reduced, the demand of the current different regional high-speed rail lines is met, the heat preservation performance and the safety and comfort of the whole vehicle are ensured, and the energy consumption is reduced.

The invention discloses a highway-railway dual-purpose multifunctional tamping vehicle which comprises a main vehicle frame of an arch structure, a highway walking module, a guide wheel module, a track lifting and lining module, a measuring module and a tamping module, and the track lifting and lining module is used for clamping a track and stirring the track; the measuring module falls on the track, walks along the track along with the main frame and is used for measuring the longitudinal position and the transverse position of the track; the tamping module is provided with a plurality of groups of detachable and adjustable tamping picks and is used for tamping operation of railway lines and turnouts; a cab is arranged on the side, away from the tamping module, of the main frame, and auxiliary arms are arranged at the front end and the rear end of the main frame. The road-railway dual-purpose multifunctional tamping wagon can be quickly switched among a road walking mode, a railway walking mode and a railway operation mode, is flexible to go up and down a road, can realize automatic detection tamping operation, not only keeps the operation quality and the operation efficiency of a large tamping wagon, but also improves the working efficiency of the large tamping wagon. And the difficulty that small and medium-sized tamping equipment cannot automatically detect the track lifting and lining is solved.

The utility model relates to a P60 short rail for pre-dropping rail head height of railway line, which is characterized by including two factory specifications of model A and model B, wherein model A is pre-dropped by 3.0+ / -0.2mm in the 1:20 inclined surface area of the rail head side, and model B is pre-dropped by 6.0+ / -0.2mm. Through hierarchical compensation design, when the vertical wear of the existing long rail head is 0-7.5mm, the welding rail height difference can be less than or equal to 1.5mm, and when the vertical wear is 7.5-9mm, the welding rail height difference can be less than or equal to 3mm. The utility model replaces on-site polishing with the pre-dropping structure at the factory, improves the welding quality, reduces the impact of the train on the rail irregularity, improves the train safe operation quality, directly reduces more than 90% of the cost, and has remarkable economic benefits and safety improvement.