83results about "Material based railway technolgy" patented technology

The invention relates to the technical field of railway train roofs and discloses a modular designing and manufacturing method of a top slab curved connecting structure in a railway train roof. The top slab connecting structure inside the train proof comprises an intermediate top slab, side top slabs, connecting assemblies of the intermediate top slab and the side top slabs and connecting assemblies of the side top slabs and a train body. Connecting parts of the side top slabs and the intermediate top slab are arranged on air duct affiliated hanging codes through large-stroke screw parts; top slab hanging codes are arranged on an air-conditioning air duct; and the connecting parts of the side top slabs and the train body are fixed on inserts of a C-shaped groove of the train body through fixing clamping pieces of the side top slabs. The curved connecting structure can effectively reduce noise in the train body, improve the fireproofing capability in the train body, can be convenient to overhaul air-conditioning air outlet duct components at the upper part of the top slab in a carriage, ensures uniform air outlet of an air conditioner and greatly improves the comfort and the practicability for passengers to take a seat.

A side construction 302 has an outside sheathing 306 and outside sheathing reinforcement members 307A and 307B joined to the outside sheathing 306 interiorly of the outside sheathing 306. The reinforcement member 307A (307B) is shaped like a hat in section. The reinforcement members 307A provided in the vicinity of a window opening portion have a laser welding spacing L1 of 80 mm and each have a hat width of 50 mm, while the reinforcement members 307B provided on other part have a laser welding spacing L1 of 100 mm and each have a hat width of 70 mm. The reinforcement members 307A and 307B each have a height of 25 mm.

The invention relates to a rail vehicle body of the type comprising a grid structure, itself comprising longitudinal elements and cross elements interconnected at nodes, and supporting outer and inner coverings. Longitudinal and cross elements are circular section tubes. At at least some of its nodes, the grid structure comprises connections for interconnecting longitudinal and cross tubes of circular section. These connections have longitudinal and cross circular section sleeves which receive longitudinal and cross tubes respectively. Longitudinal tubes pass right through the connections made of longitudinal and cross tubes.

The invention provides a normal conducting electromagnetic levitation type rail polling car, wherein the polling car is in double traction pattern of long stator linear motor traction and outer rotor motor supporting wheel traction and can realize high speed polling at 200km/h and low speed rail detection at 60km/h. The polling car is provided with a plurality of floating frames, the formed travel mechanism is also provided with a plurality of outer rotor motor supporting wheels, an operating platform is arranged at the two ends of the shortened carriage structure by a lengthened carriage bottom board, and a lift maintenance platform and a car-ground communication device are arranged on the operating platform. A high speed video monitoring system and a high speed non contact rail detection device arranged in the head skit board which is specially designed, high speed and real time processing on detection data can be realized, and any fault of the rail can be reported in time and can be processed in time.

Plural extrusion members 100, each having plural ribs 105 formed on one surface of a face plate 101, are mounted on a frame 40 with the surface not having the ribs 105 facing downward, and with the end regions of the adjacent members 100, 100 being butted to each other. Then, the end regions of said members 100 are welded using friction stir welding from the upper direction with a rotary body 20, and then a hairline finish is applied to said surface not having the ribs, which constitutes the exterior surface of the vehicle body. In this way, there is substantially no need to cut off the joint bead, which improves the appearance of the vehicle body and reduces the manufacturing cost.

A special gondola vehicle with a shallow concave bottom for coal transportation belongs to the transportation facilities, in particular to a railway truck gondola vehicle. The gondola vehicle comprises a vehicle body, a vehicle coupler buffer device, a braking device and a bogie. The vehicle body comprises a chassis, a side wall and an end wall. The key technique is that the chassis comprises a centre sill, a sleeper beam, a lower side beam and an end beam, two downwards concave shallow concave bottoms are arranged between the two sides of the centre sill and between the lower side beam and the sleeper beam in the middle of the side wall, the depths of the shallow concave bottoms are aligned with the lower plane of the centre sill, the side wall comprises a side wall board and a side post, the two ends of the side wall are end door panels which are inwards concave with respect to the side wall board to form stages, so as to form the end door plate with a concave structure. The invention not only effectively increases the vehicle body volume, but also decreases vehicle height of center of gravity, and improves vehicle riding quality.

A method for reinforcing a railcar bodyshell according to the present invention includes the steps of: in a bodyshell including a metal frame and a metal plate joined to the frame and formed such that a cross section orthogonal to a railcar longitudinal direction has a wave shape, disposing a fiber sheet on at least a part of the plate; and forming a fiber reinforced resin member by bonding the fiber sheet to the part of the plate by an impregnated adhesive resin.

The invention discloses a floating car body for a 100% low-floor tramcar and an assembling method of the floating car body. The floating car body comprises a car roof, a side wall, an end wall, a floor, a front underframe end and an upper articulated mounting base, which are riveted into one body; no bogie is arranged under the floating car body and two ends of the floating car body are connected with a motor car and a trailer by articulated devices; the front underframe end and the upper articulated mounting base are steel plate welding assemblies, and the car roof, the side wall, the end wall and the floor are formed by aluminum alloy sections or aluminum alloy panels through assembling and welding. According to the floating car body for the 100% low-floor tramcar, the entry height of a car door can be effectively reduced due to no limitation of the bogie, and besides, a bench seat can be longitudinally arranged, so that a space inside the car is large and the passenger capacity is effectively increased. The floating car body for the 100% low-floor tramcar has the remarkable advantages of simple structure, convenience in assembly, reliability in performance, good repairability and the like.

The invention relates to a high-frame wide-body electric vehicle and an on-off device and a quick escape system thereof. The vehicle comprises a vehicle body, wheels, and a power system, wherein the vehicle body comprises a carriage and a chassis; a plurality of wheels are arranged below the chassis, and are connected with the vehicle body through brackets; a common car can pass below the chassis; and the top of the vehicle body is provided with entrances/exits for passengers to get on or off the vehicle and staircases. The on-off device comprises an elevated bridge erected above a road, and stations on two sides of the road; and two sides of the carriage are provided with escape doors. The top of the vehicle body is provided with the passenger entrances/exits, and bridge stations are arranged above the road, so that the passengers get on or off the vehicle easily, and a passage for pedestrians to cross the road is increased. In an emergency state, the passengers can slide out of the carriage through the escape doors, the old and children are easily evacuated particularly, and the safety of the vehicle is improved. The invention is an economic, practical and feasible public transport choice in modern cities, and can effectively improve the difficult situation of traffic jams of urban roads at present.

The invetnion relates to an engine top cover sealing method and device, adopting a wideside-sealing engine top cover sealing method, making the whole seal tape integrally compressed to seal, and implementing sealing between top covers, between top cover and end wall, and between side wall and top cover by wider sealing tape, where the sealing auxiliaries are mainly composed of sealing tape, side wall, top cover installation beam and top covers, sealing auxiliary sealing tape is arranged between top covers, between top cover and end wall and betweeen side wall and top cover, and they are sealed by the sealing auxiliary sealing tape, and the sealing structure is a sealing tape-integral compressed wideside sealing struture; and the contact area of the sealing tape with the coupled side wall, top cover installation beam and top covers is equal to the top surface area of the whole sealing tape; and the sealing limits the sealing tape compression ratio by the difference between the height of componnet installation guide rail composing sealing auxiliary and that of the sealing tape.

The invention provides railway train body made of magnesium alloy and manufacturing method thereof. The railway train body made of magnesium alloy comprises a train underframe, a train top, two side walls and two end walls, and the train body is a box type structure formed by welding the train underframe, the train top, the two side walls and the two end walls, wherein the train underframe, the train top, the two side walls and the two end walls are formed by welding magnesium alloy profiles. By adopting the magnesium alloy train body formed by welding the magnesium alloy profiles, the railway train body made of magnesium alloy and the manufacturing method thereof realize the light weight of the railway train body and simultaneously solves the problem of resource limitation by using aluminum alloy to manufacture the train body.

The energy-free refrigeration door of the present application provides a way to control condensation when the door of a refrigeration unit is opened by providing thermal insulation to the door with glass panels which have a low emissivity coating. The door includes a door frame housing and an insulating glass unit comprising inner, middle and outer sheets of glass. A first sealant assembly disposed around the periphery of the inner and middle sheets of glass forms a first chamber between the inner and middle sheets of glass. A second sealant assembly disposed around the periphery of the middle and outer sheets of glass forms a second chamber between the middle and outer sheets of glass. A gas, such as krypton, air, or argon is held in the first and second chambers. The outer sheet of glass and inner sheet of glass each have an unexposed surface that faces the middle sheet of glass. A low emissivity coating is disposed on the unexposed surfaces of the inner and outer sheets of glass so that the glass door as a whole has a U value that prevents formation of condensation on the outer surface of the outer sheet of the glass door, without the application of electricity to heat the door, while also providing the desired evaporation rate of condensation from the inner side of the inner sheet of the glass door. An anti-fog or anti-frost coating may be included on a surface of one of the sheets of glass.

A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented web work structure for carrying vertical shear loads. The center beam so formed defines bunks upon in which to carry cargo. The upper region of the web-work structure includes a deep upper beam structure that has downwardly extending planar surfaces. The surfaces provide a bearing area against which bundled loads can be secured. The surfaces are inwardly reinforced to discourage deflection between adjacent upright members of the vertical web work.

The invention relates to a frame car body structure of a magnetic levitation type rail polling car, wherein the car body adopts a frame structure formed by welding aluminium alloy extrude section, so as to bear the load of the polling car and realize the double traction pattern of long stator linear motor traction and motor supporting wheel traction, the bottom board of carriage only hangs part of vehicle-bone electrical devices, the two ends are provided with a lift maintenance platform and a car-ground communication device mounting bracket, so as to realize that no device interlayer is arranged. The two ends of the bottom board of carriage are provided with an anti-bumping device and a car coupler, so as to meet part of function requirement of the rail polling car. The frame structure of carriage is short and is provided with four side doors of carriage, and the two ends are provided with a head with a front opening door, and the operating position for the lift maintenance platform is reserved. The middle roof part of the frame structure of carriage is provided with a roof air conditioning, and a hollow compound aluminium alloy cover board is arranged in the spaces at the two sides of the mounted electrical device, so as to ensure ventilation of the vehicle-bone electrical device and adapt to air mechanic pressure change when the polling car meets a passenger train running in high speed of 500km/h.

The invention relates to a double-sheet side guard plate for the inner side of the joint of two vehicles or compartments, relating to double-sheet side guard plates for the inner side of the joint oftwo vehicles or the compartments. The side guard plate comprises two guard plates (1) and (2), a link mechanism (3), an articulated mechanism (4), an articulated mechanism (5), a support block (6), aninstallation rack (7) and elastic cover plates (8), wherein the guard plate (1) and the guard plate (2) are in overlap joint with each other and are arranged on the installation rack (7), the link mechanism (3) is connected with the articulated mechanism (4), the articulated mechanism (5) and the support block (6), the articulated mechanism (4) and the articulated mechanism (5) are respectively connected with the installation rack (7), and the elastic cover plates (8) are arranged on both ends of the guard plate (1) and the guard plate (2). The invention can ensure the safety of passengers, and has the advantages of beautiful decoration, simple structure, low cost and easy mechanical processing.

The invention discloses a novel high-speed loose goods transporting vehicle to overcomes the drawbacks of the prior railway freight vehicle in operation of difficult residual goods cleansing, unsmooth water discharge, ineffective overall vehicle carrying and easily deformed or broken chassis. The vehicle uses a high-speed steering frame and an ABD series control valve wind brake. End walls of the body of the vehicle are vertically arranged at two ends of a chassis. An integral side wall is fixed on the chassis and a bedplate of the vehicle by side columns and rib plates. The side columns are arranged vertically at two ends of sleeper beams and cross bearers and are riveted with channel steel side beams by high-strength rivets. The angle alpha between the side wall and the vertical side columns is between 10 and 18 degrees. A side wall supporting plate is arranged on the side wall and the bedplate between each two side columns. Corner columns of the body of vehicle are provided with corner column reinforcing plates. The side wall in the middle of the body of the vehicle close to the bedplate is provided with a grid discharge port and a discharge port protective shade. The whole vehicle is made of weather-resistant steel. The vehicle has the characteristics of good water discharge effect and strong overall structural strength. The vehicle is suitable for transporting loose raw materials such as coal, concentrate fines, sintering ores and sinter balls.

The invention discloses a side door handrail device of a diesel locomotive cab, which comprises wall boards and two handrails which are arranged on the both sides of the side door of the cab, wherein both the two handrails are respectively provided with an upper installing seat, a lower installing seat and a handrail rod. Grooves are respectively arranged on the wall boards on the both sides of the side door of the cab, and the two handrails are respectively arranged in the two grooves. The upper installing seats and the lower installing seats of the handrails are respectively fixed on the top surfaces and the bottom surfaces of the grooves, the handrail rods of the handrails are straight rods, and the both ends of the handrail rods are connected with the upper installing seat and the lower installing seat in the identical groove respectively through an upper connecting rod and a lower connecting rod. The side door handrail device of the diesel locomotive cab has the advantages that the processing is convenient, the erosion of rainwater to the outer surfaces of the handrails is reduced, the service life of the handrails is prolonged, and the side door handrail device facilitates the overall artistic appearance of the diesel locomotive, and particularly meets the requirement of the harmony diesel motor locomotive.

A commonly used cote truck belongs to railway transportation vehicle, or specifically, a railway truck. It comprises of a body, braking mechanism, clasp bumper mechanism and a steering rack. The key know-how rests on the body, which includes the bottom frame, a plate cylindrical side wall made up of side plate and side cylinder, end wall, roof that has venting system at both ends, and also a door on the side wall and supported by the doorpost. This cote truck substantially adopts the case and enclosed section structure by forming a reasonable overall force frame to achieve the ideal carrying effect and the extension of the car's life span. And the feature of reducing the dead load of the steel frame without degrading the level of rigidity has made this structure having bigger bearing ability.

The invention provides a car body structure capable of facilitating the laying operation of wires and pipes passing through a body bolster, preventing the increase of components and complexity of underfloor structure, and reducing the cost of manufacturing the car body without deteriorating the rigidity and strength of the body bolster. Center sills (7, 7) are passed through a body bolster (5) in an underframe (1), the intersection of center sills (7, 7) and the body bolster referred to as a penetration portion (10), wherein the inner space of the penetration portion (10) is used to arrange wires and pipes (the paths thereof shown by reference number (11)). The interior of the penetration portion is a rectangular hollow space capable of allowing a sufficient amount of wires and pipes to be passed therethrough. Since there is no need to provide to the body bolster conventional penetration pipes dedicated for arranging wires and pipes, and thus no voids are formed in the body bolster, the deterioration of rigidity and strength of the body bolster caused by such segmentalization of the body bolster can be prevented and the manufacturing cost can be cut down without increasing components such as reinforcement members.

A center beam rail road car has a center sill that runs along the car from end to end. The center sill is dog-legged, having end portions mounted over rail car trucks, and a downwardly stepped central portion between the trucks. A central beam assembly stands upwardly of the center sill. A lading supporting deck structure extends laterally to either side of the center sill. The deck structure has a depressed medial portion between the trucks, and raised end portions over the trucks. The deck portions have lading bearing interfaces. The medial portion of the center sill has a top flange that is carried at a height that lies flush with, or below, the level of the lading bearing interface of the medial portion of the center sill. In one embodiment, a column member for carrying buff and draft loads is spaced upwardly from the medial portion of the center sill. The car may be constructed in a version having a top truss, or having a top chord member that lies within the profile of vertical posts of the central beam assembly. In embodiments having a narrow top chord, the car may be provided with a top chord cover.

A cold draw process for prefabricating the big side wall plate of railway carriage includes cold drawing the big plate in longitudinal direction by 0.9-1.2% of elongation percentage to generate permanent plastic deformation, and welding two drawn big plates together. Its advantages are simple process, short period, high utilization rate of raw material, and not cracking.