1076results about "Axle-box lubrication" patented technology

Door assemblies for insulated boxcars and refrigerated boxcars are disclosed. In some embodiments, the door assemblies include a generally planar base, a liner spaced from the rear surface of the base. The liner includes a central portion and a perimeter portion surrounding the central portion. The door assemblies additionally include a perimeter gasket attached to the perimeter portion and surrounding the central portion. The door assemblies further include first and second end wall members. The base, the liner, and the first and second end wall members define an interior compartment therebetween. The door assemblies additionally include insulation disposed within the interior compartment, wherein the first and second end wall members are shaped such that insulation is disposed within one or more planes that are perpendicular to the base and to the perimeter portion of the liner and that include a portion of the perimeter gasket.

Described is a device for supporting cables for articulated vehicles, designed for installation close to a connecting compartment between two adjacent units of an articulated vehicle, including at least one flexible connecting element fixed to the two units and formed by a series of plates connected to each other by interposing deformable laminar elements consisting of elastic metal elements which allow the elastic deformation of the flexible connecting element, and a series of cable-holder elements joined to respective plates of the flexible connecting element to each define at least one receiving seat provided for housing at least one cable, with supporting means for supporting the flexible connecting element containing the cables.

The application discloses a bogie covering device, a bogie and a railway vehicle, and relates to the technical field of railway vehicles. The bogie covering device comprises a mounting cross beam, which is used for fixedly connecting to a frame body of the bogie; at least two mounting plates, which are fixedly arranged on the mounting cross beam, and at least one of the mounting plates is used for fixedly connecting to the frame body of the bogie; and at least one of the mounting plates is provided with a containing portion for containing an axle-mounted brake disc, and the bottom of the containing portion is protrusively arranged towards the outer surface of the mounting plate. The bogie covering device in the application can be applied to the bogie with a large-size axle-mounted brake disc; in the process of running, the airflow can be prevented from entering the bogie device through the avoiding holes to generate the aerodynamic resistance, most of the airflow can flow along the bottom surface of the bogie covering device from the outside of the bogie covering device, and compared with the airflow directly flowing through the complex components in the bogie covering device, the aerodynamic resistance can be effectively reduced.

The utility model discloses a stepped side wall of a railway wagon, which relates to the technical field of railway open wagons and comprises a side wall plate, an upper side beam arranged at the top of the side wall plate, a plurality of inner side columns arranged on the inner side of the side wall plate at intervals and outer side columns arranged on the outer side of the side wall plate at intervals. Each side wall plate comprises an upper side plate and a lower side plate arranged below the upper side plate, each outer side column is arranged below the upper side plate, and each inner side column is welded to the inner side of the upper side plate and the inner side of the lower side plate; the inner side columns and the outer side columns are the same in number and correspond to each other in position in a one-to-one mode to form a side column structure, and the lower side plates are located between the inner side columns and the outer side columns. And a stepped side wall plate structure is arranged in the lower side plate. The door opening structure is reasonable in design, and prevents the door opening from being deformed and damaged by reducing the space between the side columns and canceling the free surface of the lower side plate at the door opening. The combined side column structure of the inner side column and the outer side column is adopted, the section of the side column is increased, the connecting structure of the side column and the chassis cross beam is optimized, and the external expansion resistance of the side wall is improved.

The present invention discloses a passive safety protection windshield structure for a rail vehicle, a rail vehicle and a method, which solves the problem in the prior art that the windshield structure cannot effectively buffer the squeezing between carriages, and has the beneficial effect of effectively resisting impact force and avoiding secondary impact. The specific scheme is as follows: A passive safety protection windshield structure for a rail vehicle comprises a capsule, which is mounted on the rail vehicle through a windshield mounting seat, and a cavity is formed between the capsule and the windshield mounting seat, and an air curtain is arranged in the cavity. The air curtain is inflatable and supported by a number of fixing devices, which are arranged along the circumferential direction of the rail vehicle; the fixing device comprises a fixing seat mounted on the windshield mounting seat, each side of the fixing seat is movably connected to the supporting member through a rotatable member, an elastic member is arranged between the rotatable member on each side and the fixing seat, and the supporting member is connected to the fixing cover, and a space is formed between the two to support the air curtain while limiting the air curtain.

The invention discloses an Al-Mg-Zn aluminum alloy plate with excellent strong plasticity and light weight characteristics as well as a preparation method and application of the Al-Mg-Zn aluminum alloy plate. The alloy comprises the following components in percentage by mass: 5.0%-5.5% of Mg, 1.5%-2.0% of Zn, 0.4%-0.5% of Mn, 0.1%-0.3% of Cu, 0.15%-0.25% of Sc, 0.1%-0.15% of Zr, 0.05%-0.15% of Ag, less than or equal to 0.1% of impurities and the balance of Al. The density is not more than 2.63 g / cm < 3 >, the tensile strength is not less than 470 MPa, and the ductility is not less than 23%. The preparation method comprises the steps of high-purity raw material smelting and casting, two-stage homogenization, hot rolling, intermediate annealing, cold rolling, solid solution treatment and single-stage aging. Wherein the total pressing amount of hot rolling is 80-85%, the total pressing amount of cold rolling is 20-35%, and the single-stage aging time is 120-140 DEG C * 16-24 h. The microstructure of the alloy is characterized in that the average size of dispersed AlSc particles is smaller than or equal to 100 nm, the area fraction of deformed grains is larger than or equal to 70%, the average size of nanometer beta-AlMg and T-Mg (Al, Zn) composite precipitated phases is smaller than or equal to 20 nm, the number density is larger than or equal to 1 * 10 < m >, the area fraction of micron-order second phases is smaller than or equal to 0.5%, and the alloy is only formed by impurity Fe. According to the method, the traditional two-stage aging process is simplified, low density, high strength and high plasticity are synchronously improved, and the method is suitable for large-scale industrial application.

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 embodiment of the invention provides a floor and a double-layer railway vehicle, the floor comprises a plurality of longitudinally arranged floor modules, each floor module comprises an upper-layer skin, a lower-layer skin and a middle-layer frame, and each middle-layer frame comprises an internal reinforcing beam and an edge sealing beam; the internal reinforcing beam comprises a plurality of cross beams and longitudinal beams which are staggered transversely and longitudinally, the cross beams and the longitudinal beams form a filling part, a foam sandwich layer and / or a carbon fiber tube core material group and a carbon fiber composite material are arranged in the filling part to realize the lightweight design of the floor, and meanwhile, the internal reinforcing beam improves the strength and rigidity of the floor and meets the use requirements; a sandwich structure is arranged in the filling part, so that the requirements of light weight and strength are met; secondly, the cross beams and the longitudinal beams at the intersection points are continuously arranged, so that the strength and the rigidity are further improved, the bearing capacity of the floor is enhanced, and the bending resistance is improved; the edge sealing beams achieve connection and sealing between the adjacent modules, and the stability of the whole structure is enhanced.

The embodiment of the invention provides a communication system and a communication method based on a motor train unit. The communication system based on the motor train unit is characterized in that the motor train unit comprises a motor vehicle, at least one trailer and a control vehicle, and the communication system comprises a first control system and a first monitoring system which are arranged on the motor vehicle and are electrically connected, the second control system and the second monitoring system are arranged on the control vehicle and are electrically connected, and the vehicle monitoring platforms are arranged on the trailers. The vehicle monitoring platform comprises a hardware monitoring module, a software monitoring module and an ECMN. The network topology structure provided by the embodiment of the invention is visual and convenient, the control difficulty of the whole communication system is lower, and the control efficiency is higher.

According to the side wall with the built-in side column and the vehicle provided by the utility model, the mounting positions of the wall body and the side column are changed, so that the volume and the load of the vehicle can be further improved. The side wall with the built-in side columns comprises two wall bodies extending in the height direction, and the two wall bodies are oppositely arranged; the bottom ends of the wall bodies are fixed to the bottom frame lower side beams on the corresponding sides, the top ends of the wall bodies are fixedly connected with top longitudinal beams, a plurality of side columns extending in the height direction are further fixedly arranged on the inner walls of the wall bodies, and the bottom ends of the side columns are used for being fixedly connected to the bottom frame lower side beams. The top ends of the side columns are used for being directly or indirectly connected to a top longitudinal beam. By the adoption of the implementation mode, the side columns are arranged on the inner walls of the walls, the outer walls of the walls serve as limits in the width direction of the vehicle, and therefore the volume and the bearing capacity of the vehicle are increased under the condition that the limit requirements are met.

This invention discloses a hoisting partition wall for high-speed trains and its molding method. The partition wall is used to connect to the underframe of a high-speed train and includes a hoisting partition wall body integrally molded from a carbon fiber sandwich composite material. The carbon fiber sandwich composite material comprises a carbon fiber skin, a film, and a foam core, forming a sandwich structure. The hoisting partition wall body is equipped with multiple connecting seats and tie rods. This hoisting partition wall for high-speed trains has the advantages of light weight, high strength, and high integrity.

The utility model relates to a train front end opening and closing mechanism which comprises a supporting frame, a fairing cabin door and a driving mechanism. Wherein the fairing cabin door is divided into a first fairing, a second fairing and a third fairing which are rotationally connected to the supporting frame through a first rotating arm, a second rotating arm and a third rotating arm correspondingly, the driving mechanism comprises three driving elements which are installed on the supporting frame correspondingly, and the power output ends of the three driving elements are connected to the three rotating arms correspondingly to provide driving force for the three rotating arms. The air guide cover cabin door solves the problem that in part of specific vehicle types, two air guide cover cabin doors which are split according to a conventional type cannot be prevented from interfering with interior parts such as an energy absorption device and a car coupler by adopting a left-right or up-down opening mode, and is simple and reliable in structure and convenient to use. The connection positions of the three fairings can be adaptively adjusted according to the difference of the installation position of the energy absorption device in the car and the swing angle of the car coupler, and the adaptability of the fairings cabin door to the arrangement of internal parts at the front end of the car body is improved.

The invention discloses a roof sandwich plate and embedded part composite connecting structure for a rail transit vehicle and a process of the roof sandwich plate and embedded part composite connecting structure, and relates to the technical field of mechanical connecting structures. The multi-layer composite board is composed of an upper panel, a lower panel and a light core material, the pre-buried metal section bar is installed on the edge of the board through a glue joint layer, the framework edge beam is arranged on the board in a sleeved mode through a clamping groove and is in glue joint with the upper panel and the lower panel, and the framework edge beam, the upper panel and the lower panel are mechanically connected and fixed through the mechanical locking unit. By means of the composite connection structure of glue joint and mechanical locking, the connection strength of the roof sandwich plate and the embedded part is guaranteed, the reliability and durability of connection are improved, and the comprehensive requirements of rail transit vehicles for high reliability, high durability and light weight of the roof structure are met.

The embodiment of the invention provides a container and a railway vehicle, the container comprises an upper box body and a lower box body, the upper box body and the lower box body are respectively provided with an inner cavity for splicing, the side walls are respectively provided with partial door frame embedding ports, and the upper box body and the lower box body are detachably and fixedly connected; the sealing side door is detachably and fixedly connected with the door frame embedding opening formed after the upper box body and the lower box body are spliced. The upper box body and the lower box body adopt a splicing structure, the upper box body and the lower box body are respectively provided with an inner cavity and a door frame embedding opening which can be spliced, the sealing side door is detachably and fixedly connected with the spliced door frame embedding opening, the container can be quickly spliced and formed, bulk cargoes can be materialized into a whole according to characteristics of the cargoes according to local conditions, and the bulk cargoes are simplified; operation such as disassembly, carrying, storage and piece counting is convenient, so that the transportation efficiency is improved, the transportation quality is improved, and the goods damage and goods difference in the transportation process are reduced; mechanization of loading and unloading operation is achieved, and labor intensity of workers is reduced; operation time is reduced, and vehicle turnover is accelerated.

To provide a railway vehicle which enables reduction of inconveniences when a window frame is fixed to a side pillar member.SOLUTION: A railway vehicle includes a door tail pillar 43 disposed around a window frame 44, and the door tail pillar 43 has a substrate part 431 which extends in a longitudinal direction of the door tail pillar 43 and whose cross section orthogonal to the longitudinal direction of the door tail pillar 43 is parallel to a vehicle body longitudinal direction. A plate-like window frame receiving part 50 is fixed to the substrate part 431 by rivets 54 so as to be parallel to the vehicle body longitudinal direction. The window frame 44 is fixed to the window frame receiving member 50.SELECTED DRAWING: Figure 7

A laying structure of and a laying implementation method for a thick-walled multi-cavity pultruded beam in the shape of a Chinese character "目" for a vehicle body, relating to the technical field of rail transit. The laying structure comprises a first cavity region (1), a second cavity region (2), a third cavity region (3), and an outer skin region (4) that are all formed by laying multi-axial fabrics. The second cavity region (2) is located between the first cavity region (1) and the third cavity region (3), and the first, second and third cavity regions are collectively wrapped by the outer skin region (4) to form a rectangular structure in the shape of the Chinese character "目". In the laying structure of a thick-walled multi-cavity pultruded beam in the shape of the Chinese character "目" for a vehicle body, quasi-isotropic mechanical properties of the thick-walled multi-cavity pultruded beam in the shape of the Chinese character "目" for a vehicle body are achieved by laying multi-axial fabrics; moreover, the laying structure is adapted to a pultrusion process, and optimizes the structural design, improving the overall rigidity and strength.

The utility model discloses a railway vehicle top plate mounting structure, a top plate (1) comprises an air outlet grating (1.1) and a middle top plate (1.2), the air outlet grating (1.1) is fixedly connected with the middle top plate (1.2), the air outlet grating (1.1) is positioned on the outer side of the middle top plate (1.2), and an air duct (2) is arranged above the middle top plate (1.2); the top of the railway vehicle is further provided with a middle beam (3) and boundary beams (4), the two boundary beams (4) are located on the two sides of the middle beam (3), the inner side of the middle top plate (1.2) is hinged to the middle beam (3), and the outer side of the air outlet grille (1.1) is detachably connected with the boundary beams (4). The middle roof plate in the railway vehicle can be quickly opened, and the problems that in the air duct cleaning process, the workload is too large, and the period is too long are solved.

The utility model provides a stainless steel metro car body structure with replaceable modules. The metro car body structure comprises an underframe steel structure, a car roof steel structure, a side wall steel structure, an end wall steel structure, a cab framework structure, an end crushing area and an energy absorption structure. The ground body vehicle body structure has high strength and high safety performance, and the vehicle body structure does not yield under the working condition that the compression load of the end portion is 1800 kN; when destructive accidents such as collision occur, only local replacement or maintenance is needed, the problem that the whole vehicle body system is not suitable for maintenance is solved, the cost is effectively reduced, the service life of an accident vehicle body is prolonged, and the design life of the optimized vehicle body structure can be prolonged to 40 years through simulation analysis and line test data verification.

The invention belongs to the technical field of high-speed train aerodynamic optimization, and particularly relates to a train pneumatic drag reduction and wake flow regulation and control device and method based on bionic shark fins. The device comprises a base, the base is arranged on the lower surface of the vehicle body fairing through a plurality of bolts, a fin plate is arranged on the base, and a fixing block is arranged at the bottom of the fin plate; the base is provided with a plurality of limiting and locking mechanisms, the fin plate is limited through the limiting and locking mechanisms, the limiting and locking mechanisms are provided with driving mechanisms, the driving mechanisms are connected with rotating shafts, and the rotating shafts are connected with the fixing blocks and used for driving the fin plate to rotate; a lateral reinforcing plate is arranged on the outer side of the base, a pneumatic compensation plate is arranged between the lateral reinforcing plate and the fin plate, and the pneumatic compensation plate is fixedly connected with the base plate. By dynamically adjusting the attack angle and clearance compensation of an additional device on the surface of the vehicle body, aerodynamic resistance is reduced, wake flow stability is improved, and self-adaptive optimization under complex working conditions is achieved.

This invention relates to a fairing opening and closing mechanism, comprising: a support plate, a rotating arm mechanism, a power mechanism, and an auxiliary power mechanism; wherein one end of the rotating arm mechanism is hinged to the support plate and the other end is connected to the fairing; the power mechanism and the auxiliary power mechanism are both mounted on the support plate and connected to the rotating arm mechanism respectively via adapter seats; during the automatic opening and closing of the fairing, the power mechanism and the auxiliary power mechanism provide motion power to the fairing in stages. This invention, by setting two power sources in cooperation, realizes the electric opening and closing of the fairing hatch, improving the stability and efficiency of the electric opening and closing process. Simultaneously, the guide groove design of the connecting seat also enables manual opening and closing, effectively solving the problem that some train electric opening and closing mechanisms cannot be manually operated in emergency situations when there is no power or the electric drive component fails.

The invention provides a micro structure control method for resistance reduction of a higher-speed-level train. The micro structure control method specifically comprises the steps that a closely-arranged micro ridge-shaped two-dimensional structure with ridge lines parallel to the length direction of the train is designed; performing CFD numerical experiment based on the k-omega SST turbulence model and the microstructure numerical modeling boundary, and analyzing the flow characteristics of different sizes of microstructure surfaces on the high-speed train at the operation speed of 400km / h to obtain the optimal bionic microstructure cross section size; by analyzing a flow field of a simplified model of the high-speed train, summarizing flow characteristics of streaming of the high-speed train and combining flow control characteristics of the bionic microstructures, the bionic microstructures are arranged in a straight section area of the train, and the bionic microstructures are not arranged in streamline areas of a head train and a tail train. The method is reasonable in conception, can be applied to a high-speed train with the speed of 400 km / h, optimizes flow characteristics and reduces aerodynamic resistance by arranging microstructures with specific shapes and sizes on the surface of the train, and therefore the running efficiency and stability of the train are improved.

The utility model discloses a fixed apron board, a vehicle equipment compartment and a railway vehicle, and relates to the technical field of railway vehicles, and the fixed apron board comprises an apron board main body and a plugging structure. Wherein the apron board main body is of a structure integrally formed by a composite material, the apron board main body comprises a cavity structure, and a first sealing plate structure used for being connected with a vehicle body edge beam and a second sealing plate structure used for being connected with a framework edge beam are arranged at the two ends of the cavity structure in the longitudinal direction correspondingly; the blocking structures are arranged at the two ends of the cavity structure in the transverse direction, and the blocking structures are configured to seal an inner cavity of the cavity structure together with the first sealing plate structure and the second sealing plate structure. The fixed apron board solves the problem that an existing aluminum alloy apron board cannot meet the requirements for light weight and performance at the same time.

The application discloses a bogie covering device and a railway vehicle, and relates to the technical field of railway vehicles.The bogie covering device comprises a bottom plate arranged below a bogie and between two wheels arranged adjacent to each other along the width direction of the vehicle; two side plates arranged on the two sides of the bottom plate along the width direction of the bogie, and the side plates are provided with avoiding holes for the wheels to extend out; and the side plates are connected to a vehicle body and are in contact with or connected to the bottom plate.In the process of using the bogie covering device provided by the specific embodiment, when the vehicle is running, the bottom plate and the two side plates cover all parts of the bogie except the wheels, so that the airflow can be prevented from entering the interior of the bogie to generate resistance, the resistance generated by the bogie part during the running of the vehicle is effectively reduced, and the energy consumption is reduced.

To provide an outer hood for a railway vehicle which has a simple structure, is rich in flexibility and rigidity, and can be used for a long period of time.SOLUTION: A connection part 103 between a front side vehicle body 101 and a rear side vehicle body 102 of a railway vehicle 100 is continuously covered from the outside from a roof to right and left side surfaces, and a plurality of hood bodies 111 are arranged in the outer peripheral direction surrounding the vehicle 100. The front side and the rear side of the awning body 111 are the outer awning 110 for the railway vehicle fixed to the front side vehicle body 101 and the rear side vehicle body 102, respectively, and the awning body 111 is a housing made of a rubber-like elastic body, opened on the back surface side, and including a front surface 112, a front surface 113, a rear surface 114, a first surface 115, and a second surface 116, and is formed by integrally molding a plurality of corrugated middle ribs 131,132 vertically protruding from the front surface 112 to the vehicle interior side between the first surface 115 and the second surface 116.SELECTED DRAWING: Figure 19

To provide a thin structural member which contributes to the improvement of assemblability of a vehicle body, is light-weight and has high rigidity, and a railroad vehicle that forms a floor surface with an underframe structure with such a structural member.SOLUTION: A body bolster of a railroad vehicle includes: a plurality of radial ribs arranged radially from the center of a vertical load input unit and having a shape of a protrusion on the surface of a flat plate arranged horizontally with a curvature provided in the longitudinal or width direction of a vehicle more gently as it moves away from the center of the vertical load input unit; and a circular rib arranged intermittently around a vertical load input seating surface so as to overlap the plurality of radial ribs.SELECTED DRAWING: Figure 4

The invention discloses a power concentration motor train unit body and a rail train, and relates to the field of rail trains. The power concentration motor train unit body comprises a car coupler mounting structure arranged at the bottom of the front end of the train body, a car coupler arranged on the car coupler mounting structure in the running direction of the train body, an anti-creeper arranged at the front end of the train body and an energy absorption deformation structure arranged on the upper inclined face of the front end of the train body. The coupler mounting mechanism is provided with a coupler supporting mechanism used for supporting a coupler and a sliding table structure used for assisting the coupler in sliding after collision. The energy absorption structure of the train body is optimized, the train can absorb energy according to the design sequence during collision, the collision resistance of the train and the safety of drivers and passengers are improved, meanwhile, the strength and rigidity of the train body are guaranteed, and the energy absorption structure is suitable for large-scale production.

The utility model belongs to the technical field of rail transit equipment, and particularly relates to a windshield folding shed device, which is characterized in that a main body structure is formed by connecting four integrally formed N-ring straight distribution sections and four integrally formed N-ring elbow sections, two ends of each elbow section are of single-layer structures, a vehicle inner side of the middle part is of a single-layer structure, and a vehicle outer side of the middle part is of a double-layer structure; the length of the straight cloth section is customized according to requirements, the number of rings of the straight cloth section and the number of rings of the elbow section are customized according to requirements, the straight cloth section and the elbow section can be directly and modularly extruded to form a set number of rings, or two rings and / or three rings are respectively and modularly extruded to form a set number of rings, and in addition, the straight cloth section and the elbow section adopt shed cloth with rectangular sections to improve deformation resistance. The straight cloth section and the elbow section are integrally formed in a multi-ring extrusion mode and only need to be cut according to the set required length, the process is simple and easy to implement, butt joints between rings are reduced or even avoided, and the sealing performance is improved. The durability is excellent, the applicability is high, and the modularization degree is high.