31 results about "Unit train" patented technology

The invention discloses a motor train unit train body service state detection method and system, and belongs to the technical field of motor train unit detection. The method comprises the following steps: a corrosion state detection stage: positioning a corrosion area, recording a corrosion range and a maximum corrosion depth, and collecting a corrosion product sample; then component testing is conducted on the corrosion product sample, corrosion product components and corrosion types are analyzed, a corrosion mechanism is generated, and a corrosion detection result is obtained; a weld joint dual-detection stage: detecting structural defects or cracks of a target weld joint area through a dye penetrant inspection method, carrying out residual stress test by using ultrasonic waves, and evaluating the use performance of the vehicle to obtain a weld joint detection result; and a fatigue strength and residual life evaluation stage: establishing a vehicle body finite element model under different vehicle conditions according to a corrosion detection result and a welding seam detection result, evaluating the residual life of the vehicle body through static strength and fatigue strength simulation, and generating a vehicle body service state. According to the invention, high-efficiency and comprehensive monitoring and evaluation are realized.

The utility model discloses a motor train unit train roof operation safety protection tool which comprises a bottom plate and a supporting part, the supporting part is arranged at the top of the bottom plate and provided with a connecting base arranged at the top of the bottom plate, a driving rotating rod is rotationally arranged at the top of the connecting base, a guardrail is rotationally arranged at the top end of the driving rotating rod, and the driving rotating rod is connected with the guardrail. A transmission rotating rod is rotatably arranged on the side face of the driving rotating rod, a transmission frame is slidably arranged in the bottom plate in the arrangement direction of the bottom plate, the top of the transmission frame is rotatably connected with the bottom end of the transmission rotating rod, and the transmission frame displaces to drive the transmission rotating rod to rotate so as to push the driving rotating rod to rotate to drive the guardrail to move horizontally. By arranging the supporting part, the transmission frame can slide and move in the bottom plate, so that the transmission rotating rod at the top of the transmission frame can be driven to rotate, the transmission rotating rod can push the driving rotating rod rotationally connected with the transmission rotating rod to rotate, the guardrail can be driven to move horizontally, and space is saved.

The present disclosure relates to a coupled multiple-unit train set and a wireless communication system thereof. The coupled multiple-unit train set comprises at least two train formations; each train formation in the coupled multiple-unit train set is provided with a backbone network node, a plurality of terminal nodes, and at least one virtual backbone network node; once the train formations in the coupled multiple-unit train set have been connected by means of couplers, a wireless connection is established between the virtual backbone network nodes of the train formations connected by means of the couplers, so that respective train numbers and device identifiers are exchanged between the virtual backbone network nodes; a topology discovery protocol is run between another virtual backbone network node and the backbone network node of the local train formation, so as to establish mutually addressable routing tables.

The present application discloses a method for dynamic marshaling of virtual trains at different speeds, comprising: when two unit trains begin to be marshaled, in the case where the initial speeds of the first unit train and the second unit train adjacent to and catching up with it are different, obtaining the reference speed of the second unit train during the marshaling process, and obtaining the reference running interval of the two unit trains at any time; defining the interval tracking error and the speed tracking error based on the reference running interval, and constructing a non-singular terminal sliding surface; designing a non-singular terminal sliding control strategy, and controlling the dynamic marshaling of the train so that the interval tracking error and the speed tracking error can reach the non-singular terminal sliding surface under any initial conditions, and can converge asymptotically to zero within a finite time. The present application constructs a marshaling stage control model for the case of virtual trains at different speeds, and designs a non-singular terminal sliding control strategy to ensure that the trains can be safely and efficiently re-marshaled in the switch section according to the mission requirements.

The utility model discloses a motor train unit train toilet electrically operated gate, and belongs to the technical field of urban rail transit. A motor train unit train toilet electric door comprises a first sliding rail, a door carrying frame is connected to the first sliding rail in a sliding mode, a door body is fixedly connected to the door carrying frame, a transmission belt is installed on the first sliding rail, a plurality of transmission wheels are coupled to the inner side of the transmission belt, the transmission wheels are rotatably installed on the first sliding rail, and the door carrying frame is fixedly connected with the transmission belt. A driving motor is fixedly installed on the first sliding rail, the output end of the driving motor is coupled with one transmission wheel, and an indicator lamp and an infrared sensor are fixedly installed on the outer side of the door body. The transmission belt and the door carrying frame are adopted for driving the door body, so that the side-hung opening range of the door body is not limited, meanwhile, the position of the driving motor can be flexibly adjusted according to the actual situation, and the practicability of the device is improved.

The utility model discloses a motor train unit train head hook and middle car coupler fastening tool which comprises a coupler head, a coupler body and a coupler tail, the coupler head is connected with the coupler tail through the coupler body, the coupler body comprises a first damping mechanism and a second damping mechanism, the first damping mechanism is connected with the second damping mechanism, and the first damping mechanism comprises a first damping rod, a first piston and a first damping cylinder. The first damping rod is slidably connected with the first damping cylinder through the first piston. The coupler has the advantages that the coupler body comprises the first damping mechanism and the second damping mechanism, triple damping can be achieved through the first damping mechanism and the second damping mechanism, the damping effect is further improved, and the buffering effect is improved when two motor train unit couplers are in butt joint.

The invention discloses an improvement method of a locomotive synchronous control system. The method comprises the following steps: synchronizing the time of each unit train synchronous control system; the position of each unit train, front line data and driving permission information are obtained, the head locomotive obtains operation condition information of the head train, future operation actions of the head locomotive are planned according to the signal lamp state in the interval where the head train is located, and the occurrence time of the operation actions is marked with local time; the rear locomotive obtains the positions of all the front locomotives, the current operation condition information of all the front locomotives and the future operation actions of all the front locomotives, and converts local time stamps according to the time synchronization information; in combination with the distance between the rear locomotive and the adjacent front locomotive and the operation condition information of the rear train, the future operation action of the rear train is planned, and the occurrence moment of the operation action of the rear train is marked with local time; and the method can better adapt to communication delay.

This invention provides a control system for achieving arc-free coupling and uncoupling of trains in multiple-unit train operation. If the stationary first train is in a waiting-to-coupling state and under parking braking, and receives a power-up command for the electric hook, but the electric hook is not connected, the power-up relay is closed, connecting the train line of the first train to the preset control voltage positive supply terminal, thus energizing the train line. The second train, about to be coupled to the first train, moves at low speed, and its train line is energized. During coupling, since the train line of the first train is already energized, the train lines of both trains have the same voltage, resulting in arc-free coupling. If the two coupled trains are in a waiting-to-uncoupling state, and one of the driver's cabs is activated, the activation of that driver's cab is deactivated, causing the corresponding driver's cab activation relay to open, disconnecting the train line from the preset control voltage positive supply terminal, thus de-energizing the train line during uncoupling and achieving arc-free uncoupling.

The invention discloses a method for quickly generating train number information of a motor train unit and a related product, and belongs to the technical field of train number information generation of the motor train unit. According to the method for rapidly generating the train number information of the motor train unit, the basic data are generated by obtaining the passenger train working diagram of the motor train unit, the train number list of the motor train unit and the train number information of the old version of the motor train unit, then whether the basic data meet the preset standard or not is detected, and the basic data meeting the preset standard are rapidly generated. The train number information of the new-version motor train unit is automatically calculated and solved; and for the basic data which do not meet the preset standard, abnormal conditions are output and modified, so that the correctness of the input data is ensured. By adopting the method, the new-version motor train unit train number information file can be automatically generated according to the basic data, and the train number information file making efficiency and accuracy are greatly improved.

The utility model relates to the technical field of practical training models, in particular to a practical training model for a brake caliper device of a motor train unit. A practical training model for a brake caliper device of a motor train unit comprises a practical training model body, the practical training model body comprises a suspension support frame, the upper part of the suspension support frame is provided with a transversely arranged axle, and two sides of the axle are respectively provided with a shaft disc brake practical training device and a wheel disc brake practical training device. The design is simple in structure and good in training effect, realizes multi-component simulation operation through integration of bullet train components, has a practical training function of matching a real object with a model, is suitable for a bullet train machinist to carry out basic skill training and emergency drilling, reduces potential safety hazards caused by occupation of a real train, ensures training efficiency, and improves training efficiency. And the driving safety of the motor train unit is guaranteed.

The invention relates to the technical field of heavy haul railway transportation optimization, in particular to a heavy haul railway transportation optimization method and device, equipment, a medium and a product, and the method comprises the steps: obtaining a unit train access marshalling form and an access moment; establishing a multi-objective optimization model based on a unit train access marshalling form and an access moment; solving the multi-objective optimization model by adopting an improved genetic algorithm; and outputting the solved heavy haul railway transportation collaborative optimization scheme. And the heavy haul railway transportation efficiency can be improved.

The present application relates to the technical field of electronic guide rubber wheel system, more particularly, to a double-axle rubber wheel bogie based on small wheel diameter and a modular multi-unit train.The double-axle rubber wheel bogie comprises: independent suspension assemblies, which are externally connected with a vehicle body; wheel edge drive assemblies, which are respectively installed on corresponding knuckles of the independent suspension assemblies; a double-axle linkage steering mechanism, which transmits the action of a steering gear to a small wheel diameter tire assembly; and the small wheel diameter tire assembly, which is installed on the wheel edge drive assembly and used for bearing running load and providing damping effect.The independent suspension assemblies, the double-axle linkage steering mechanism and the small wheel diameter tire assembly are matched and integrated with transverse-row seats in a passenger compartment to realize the fusion of longitudinal-row seats in the passenger compartment and the wheel package.The present application effectively reduces the floor height of the vehicle through the small wheel diameter design, and improves the problem of the wheel package being conspicuous and improves the comfort experience of passengers through the fusion design of the longitudinal-row seats in the passenger compartment and the wheel package.

The invention discloses a train control operation method and system based on virtual marshalling, and relates to the technical field of rail transit control, and the method comprises the steps that a to-be-marshaled unit train transmits own vehicle data to a ground control system, virtual marshalling is carried out according to virtual marshalling information generated by the ground control system, and the train data is transmitted to a train control system; the pilot train generates different control strategies based on the information receiving time, the running condition and the running state of the following train, the following train runs under the minimum tracking distance range and the control strategy through a cooperative automatic driving system of the following train, and when marshalling is removed, marshalling is removed from the pilot train according to the sequence; therefore, safe cooperative operation of the trains is guaranteed, the train tracking interval is reduced to the maximum extent on the premise of safety, and the line transportation capacity is remarkably improved.

The invention relates to an automatic cargo sorting system (1) comprising a travel path (2) and a plurality of transverse sorting units (4), where the transverse sorting units (4) are coupled to one another to form at least one transverse sorting unit train (5), where each transverse sorting unit (4) is designed to deliver cargo to a cargo receiving position arranged along the travel path (2), wherein at least two transverse sorting units (4) comprise electricity taking contacts (6) which are designed to establish an electrically conductive connection with power supply contacts (7) positioned along the travel path (2), the power supply contacts (7) being arranged only in certain areas along the travel path (2), and the transverse sorting units (4) in the transverse sorting unit train (5) being electrically connected, the distance between the two supply contacts (7) along the travel path (2) and the length of the supply contacts (7) along the travel path (2) are selected such that the supply contacts (6) of at least one transverse sorting unit in the transverse sorting unit train (5) are substantially always electrically conductively connected to the supply contacts (7) during the travel of the transverse sorting unit train (5) along the travel path (2).

The present application relates to the technical field of electronic guide rubber wheel system, more particularly, to a double-axle rubber wheel bogie based on small wheel diameter and a modular multi-unit train. The double-axle rubber wheel bogie comprises: independent suspension assemblies, which are externally connected with a vehicle body; wheel-side drive assemblies, which are respectively installed on corresponding knuckles of the independent suspension assemblies; a double-axle linkage steering mechanism, which transmits the action of a steering gear to a small wheel diameter tire assembly; and the small wheel diameter tire assembly, which is installed on the wheel-side drive assembly and used for bearing running load and providing damping effect. The independent suspension assemblies, the double-axle linkage steering mechanism and the small wheel diameter tire assembly are matched and integrated with transverse row seats in a passenger compartment to realize the integration of the transverse row seats in the passenger compartment with wheel packages. The present application effectively reduces the floor height of the vehicle through the small wheel diameter design, and the transverse row seats in the passenger compartment are integrated with the wheel packages, which improves the problem of the wheel packages being conspicuous and improves the comfort experience of passengers.

The application discloses a kind of far-field noise prediction methods of multiple unit train, comprising: establishing multiple unit train model, multiple unit train model includes sequentially arranged head car, intermediate car and tail car, and intermediate car includes at least one compartment;Set head car, compartment and tail car as linear sound source of same sound power;Set sound receiving point, sound receiving point is located in one side of multiple unit train model, and with interval from multiple unit train model, the line of sound receiving point and the center point of multiple unit train model is perpendicular to the running direction of multiple unit train model, and the noise sound pressure intensity of sound receiving point is calculated.By calculating the noise sound pressure intensity of sound receiving point, finally obtain the relationship between the noise sound pressure intensity of sound receiving point and the number of multiple unit train model, realize the purpose of predicting the noise sound pressure intensity of sound receiving point by the number of multiple unit train model.

The utility model discloses a position measuring and adjusting device for a collision block of a sliding plug door of a motor train unit. The position measuring and adjusting device comprises an adjusting module for adjusting the position of the collision block and a measuring module for measuring the position of the collision block to confirm whether the installation position of the collision block is normal or not. Wherein the adjusting module comprises a position adjusting base body which is fixedly connected with the collision block and is in press contact with the switch, a fixing groove used for being connected with the collision block is formed in the position adjusting base body, and the measuring module comprises a measuring base body which abuts against the collision block and determines whether the installation position of the collision block is normal or not. The installation position of the collision block is rapidly adjusted and determined through the collision block position adjusting module, the installation positioning efficiency is improved, the measuring module can determine whether the installation position of the collision block is in place or not after manual simulation of door closing of the motor train unit, the time of traditional collision block adjustment and collision block measurement is greatly shortened, the fault rate of the train door is reduced, and the production efficiency is improved. And the operation efficiency of the motor train unit train is improved.

The invention relates to an ATO (automatic train operation) time adjustment speed online calculation method and device and a medium, the method is used for time adjustment speed online calculation of a city motor train unit train in an interval temporary speed limit scene, and the method comprises the following steps: an online planning stage of a close running speed curve is used for calculating a most limited speed area of a train body range, obtaining a tight running speed curve by integrating the results of the forward speed planning and the backward speed planning; and in the online adjustment stage of the real-time running speed of the train, based on the planned close running speed curve, the real-time position of the train head is used as a starting point, and the time adjustment speed meeting the expected running time constraint is iteratively searched. Compared with the prior art, the method has the advantages of solving the problem of arrival morning and evening of the urban motor train unit train in the temporary speed limit scene and the like.

The utility model relates to a rapid grounding device, electromechanical equipment and a motor train unit train. The rapid grounding device comprises a magnet assembly, a connecting assembly and a grounding assembly. The magnet assembly is arranged on the side edge of the connecting assembly; a through first hole is formed in the center of the connecting assembly; and the grounding assembly passes through the first hole of the connecting assembly, the first end is grounded, and the second end is connected with equipment to be grounded. The rapid grounding device provided by the utility model has the advantages of good portability, simple and rapid installation and disassembly, and excellent grounding effect.

This application relates to a control method, apparatus, computer equipment, storage medium, and computer program product for train operation. The method includes: acquiring the travel speed and load status of each unit train in a target train group; determining the correlation between braking distance and braking decompression amount between each unit train based on the travel speed and load status of each unit train; wherein the braking decompression amount characterizes the mapping relationship between braking signal strength and braking intensity; constructing an operation model of the target train group based on the correlation between braking distance and braking decompression amount of each unit train; determining a scheduling strategy for each unit train based on the operation model; wherein the scheduling strategy includes the target braking decompression amount for each unit train; and controlling the operation of each unit train based on the scheduling strategy. This method can effectively improve the safety and efficiency of train operation.

The present application relates to the technical field of motor train unit train wiper assembly, and discloses a device for assembling a motor train unit train wiper motor internal sensor, which comprises a base plate, two groups of side plates arranged on the outer sides of the base plate, T-shaped rods slidingly limited on the side plates, the T-shaped rods being fixedly connected with the base plate, and first springs being arranged on the surfaces of the T-shaped rods, and sleeves fixed on one side of the side plates and penetrating the side surface of the base plate at one end. The present application effectively solves the problems of low precision and poor consistency in manual assembly of motor train unit wiper motor sensors. The axial spacing is accurately controlled by double laser sensors to ensure the stability of the Hall signal. The segmented symmetrical tightening and automatic clamping are adopted to make the locking force uniform and prevent the installation plate from moving. The device can be adapted to installation plates with different thicknesses, has strong versatility, and can realize full-automatic operation, reduce labor intensity and errors, improve assembly efficiency and consistency, and meet the requirements for safe and stable operation of motor train units.

The application discloses a method for quickly generating motor train unit train number information and related products, and belongs to the technical field of motor train unit train number information generation. The method for quickly generating motor train unit train number information provided by the application generates basic data by acquiring a motor train unit passenger train operation diagram, a motor train unit train number list and old version motor train unit train number information, then detects whether the basic data meets preset standards, automatically calculates and solves new version motor train unit train number information for the basic data meeting the preset standards, and outputs abnormal conditions and modifies the basic data not meeting the preset standards, so that the correctness of input data is ensured. The method can automatically generate a new version motor train unit train number information file according to the basic data, and greatly improves the efficiency and accuracy of train number information file production.

A power converter is used and can be composed of electrical devices such as a transformer, and a corresponding power electronic device, a microelectronic device, a communication device and the like. By introducing three voltage classes, i.e., a low voltage at 0.999 kilovolt, a medium voltage at 27.5 kilovolts, and a high voltage at 275 kilovolts, the voltage classes below 500 / 400 kilovolts are optimized and simplified, and a step-down substation below 500 / 400 kilovolts is canceled. When the power-supply capacity and the power-receiving capacity are both significantly increased, the total length of high-voltage power transmission lines and the total length of power distribution lines below 500 / 400 kilovolts are both significantly reduced, the power supply radius is significantly increased, the power supply loss is significantly reduced, the resources such as land and non-ferrous metals occupied by the power facilities are significantly reduced, the power supply quality is significantly improved, and the economic benefits are significantly improved. The present invention is suitable for high-speed trains or multiple unit trains, communication base stations and the like. The present invention achieves rational or even most rational and optimal configuration and distribution of energy and information related to power in the field of power distribution.

The invention relates to the technical field of rail transit braking control, and discloses a rail transit braking heavy fault control circuit and method based on hardware logic. The circuit is applied to a multi-marshalling train and comprises at least two CAN units, two brake main valves which are redundant to each other are arranged in each unit, and BOGI1 and BOGI2 signals indicating frame brake faults are output. Through logic combination design in the units and between the units, accurate judgment of fault signals is realized. Or logic operation is adopted in the units, BOGI1 signals among the units adopt AND logic, BOGI2 signals among the units adopt OR logic, and a brake heavy fault relay is jointly controlled. When any relay is powered on, a braking heavy fault signal is output, emergency braking is triggered, and safe operation of the train is ensured.

The invention relates to the technical field of single-line two-way railway transportation scheduling, and discloses a scheduling control integration method for virtual marshalling of single-line two-way railway heavy haul trains, which comprises the following steps of: 1, acquiring line parameters, unit train parameters and transportation demand parameters of a single-line two-way railway; and 2, inputting the line parameters, the unit train parameters and the transportation demand parameters output in the step 1 into a train operation control module, and constructing a marshalling time optimization model and a demarshalling time optimization model. A two-layer optimization framework of train operation control and a scheduling plan is constructed, the upper layer optimizes train marshalling / de-marshalling time and a running track of virtual marshalling, and the lower layer generates a scheduling plan by combining constraints such as running intervals, meeting and virtual marshalling, so that deep integration of scheduling and control is realized; the problem that single-line two-way line virtual marshalling train dispatching and control are disjointed is solved through the framework, and the line transportation density and the vehicle turnover efficiency are effectively improved.

The utility model relates to a high noise reduction device applied to the lower portion of a flat roof area of a high-speed motor train unit train, and belongs to a top noise reduction device in the high-speed motor train unit train. The flat-top wrapping cloth assembly is bonded in the welding framework and comprises an upper light sound insulation pad, a sound absorption unit, a lower light sound insulation pad and glass fiber cloth. The metamaterial resonance unit has the advantages that the structure is novel, the frequency is customized by applying the metamaterial resonance unit, a good noise reduction effect can be achieved in the noise frequency band with the frequency of 300 Hz or above, and on the basis, the metamaterial resonance unit is combined with noise reduction materials such as a lightweight sound insulation material lightweight sound insulation pad, a lightweight sound insulation pad, lightweight sound absorption cotton and a sound absorption film for use, so that the noise reduction effect is good. Compared with a traditional sound insulation pad, the weight of the flat-top wrapping cloth assembly is reduced by 25%, a welding framework made of aluminum profiles is added, the flat-top wrapping cloth assembly can be tightly attached to a roof profile after the flat-top wrapping cloth assembly is installed on a vehicle body, the noise reduction effect is improved, and the overall structural safety is guaranteed.

The invention provides a motor train unit air duct structure suitable for traction motor cooling fan double air supply channels and a motor train unit train, and the motor train unit air duct structure comprises an air duct front end structure, an air duct middle section bar reinforcing structure, an air duct tail coaming assembly, a connector inspection door cover plate and an internal coaming, a partition wall of the equipment compartment is provided with a soft air duct air inlet of a double-impeller traction motor cooling fan, and a steel wire thread sleeve is pre-embedded on the periphery of the air inlet to be connected with a soft air duct. An existing air duct structure can only meet the requirement for installation of a single-impeller type traction motor cooling fan, the air duct structure is not suitable for a motor train unit adopting a double-impeller type traction motor cooling fan for running under the condition of a long and large ramp line, and the design of the novel air duct supplements a key technology for a train body platform structure of the motor train unit. According to the connector built-in scheme integrated with the fresh air duct structure, the water inlet fault of the connector is reduced, and the maintenance cost is saved.

The utility model relates to a cable terminal anti-collision cap, an outdoor cable terminal and a motor train unit train, and the cable terminal anti-collision cap comprises a circular protection plate and an annular projection arranged along the edge of the circular protection plate. The circular protection plate is arranged at one end of the cable terminal and is detachably connected with the cable terminal; the annular bulge partially coats the end part of the cable terminal; and a terminal outlet of the cable terminal is arranged at the uncoated part of one side of the circular protection plate and the annular bulge. The cable terminal anti-collision cap provided by the utility model has the advantages of high reliability, rapid maintenance and strong environmental adaptability, and can effectively protect the cable terminal.

The invention relates to the technical field of vehicle control, in particular to an N-marshalling vehicle, a control method, device and equipment and a storage medium, and aims to improve the running stability and reliability of a multi-marshalling vehicle. According to the method, the first axle angle of a first axle corresponding to a first head car module and the hinge angle corresponding to each hinge axle module are obtained, expected angular velocity calculation is conducted in combination with the actual axle angles of other axles, and the expected angular velocities corresponding to the other axles are obtained. And then, according to the expected angle speed and the expected linear speed corresponding to the other axles, the expected wheel rotating speed corresponding to each axle is obtained, and corresponding speed control is conducted on the vehicle. Therefore, the synchronism of each axle wheel in the steering and running process is ensured, the vehicle can keep a stable running track under complex road conditions and variable environments, and the running stability and reliability of the vehicle are improved.

A multiple unit vehicle brake control system, comprising a brake control device (1), an operating air reservoir (21), an auxiliary air reservoir (22), an air brake valve (11) and an electro-pneumatic brake module (12), wherein the electro-pneumatic brake module (12) includes an electronic brake control unit (121), an electro-pneumatic valve (124), a changeover valve (125), a shutoff valve (127) and a two-way valve (126), and further comprises a pressure relief valve (15) and a relay valve (13). The system can switch between electro-pneumatic braking and air braking, and transmits a pre-control pressure to the relay valve by means of the two-way valve. The system integrates two braking control modes: automatic air braking and direct electro-pneumatic braking, wherein the electro-pneumatic braking serves as the main braking mode, and the automatic air braking serves as hot standby redundancy, thereby improving the braking reliability, and ensuring the operational safety of a multiple unit train.