Abstract: An obstacle removing and energy absorbing device provided with an obstacle removing beam (6) and a bumper cross-beam (15) which are oppositely arranged, an energy-absorbing tube assembly with an energy-absorbing tube (9) is fixedly connected between the obstacle removing beam (6) and the bumper cross-beam (15), a mounting base (8) is fixedly connected with one end of the energy-absorbing tube (9), a crushing support (13) is threaded onto the other end of the energy-absorbing tube (9), the crushing support (13) is provided with a variable-diameter through-hole, a crushing-convex portion (20) is provided in the variable-diameter through-hole, a concave portion (21) matched with the crushing-convex portion (20) is arranged at an end portion where the energy-absorbing tube (9) is penetrated into the crushing support (13), the mounting base (8) is fixedly connected with the obstacle removing beam (6), the crushing support (13) is fixedly connected with the bumper cross-beam (15).

Abstract: The present invention provides a positioning and pressing device, a pressing device and a tool for auxiliary machining of motor train underframe, the positioning and pressing device comprises a crossbeam, two supporting frames, two rotary vertical pressing structures, a lateral positioning structure, a lateral holding structure and two adjustable intermediate supporting structures; the two supporting frames are mounted in sliding manner on two sides of the upper surface of the crossbeam; the two rotary vertical pressing structures are respectively mounted on the tops of the two supporting frames; the lateral positioning structure is mounted on the side of one of the two supporting frames; the lateral holding structure is mounted on the side of the other one of the two supporting frames; and the two adjustable intermediate supporting structures are mounted on the upper surface of the crossbeam and between the two supporting frames.

Abstract: The present invention relates to the technical field of railroad passenger car, and more particularly relates to a sleeper compartment of a railroad passenger car. The sleeper compartment may be an open type or a private booth type, comprising: sidewalls, partition walls, and two columns of longitudinally arranged sleepers that are parallel with each other; each column of the longitudinally arranged sleepers is formed by no less than two sleepers that are joined together, the sleepers comprise an upper-sleeper layer and a lower-sleeper layer; one partition wall is provided between adjacent sleepers; the length direction of the longitudinally arranged sleepers is consistent with the length direction of the railroad passenger car; the longitudinally arranged sleepers at two sides are fixed to the sidewalls respectively, and a corridor is provided between two adjacent columns of longitudinally arranged sleepers.

Abstract: A driver's cab of a magnetically levitated train and a manufacturing method thereof are disclosed. The manufacturing method comprises the steps of: processing and obtaining two-dimensional framework components, and then assembling the two-dimensional framework components into a three-dimensional framework; making a three-dimensional cover skin with a small curved surface die-less forming process; and assembling the three-dimensional cover skin on the three-dimensional framework. The driver's cab comprises a three-dimensional framework and a three-dimensional cover skin assembled on the three-dimensional framework, wherein a plurality of two-dimensional framework components are mutually connected together to form the three-dimensional framework. Forming the three-dimensional framework by assembling the two-dimensional framework components can efficiently simplify the manufacturing process, lower the manufacturing cost, and improve the carrying capacity of the driver's cab of a magnetically levitated train.

Abstract: The present invention provides a rescue passage window for a passenger train, comprising an aluminum alloy outer frame, a hollow tempered glass, a movable sash, a fixed sash, a locking device, a rotating device and a sealing device, the aluminum alloy outer frame is a carrier to connect the structures of any other parts, the hollow tempered glass is inlaid on the aluminum alloy outer frame by the sealing device to form the fixed sash and the movable sash, the movable sash is suspended on the cross beam of the aluminum alloy outer frame by the rotating device to realize its connection with the aluminum alloy outer frame, reliable locking between the movable sash and the aluminum alloy outer frame is realized by the locking device, connection and sealing between the movable sash and the aluminum alloy outer frame is realized by the sealing device.

Abstract: The present invention provides a positioning and pressing device, a pressing device and a tool for auxiliary machining of motor train underframe, the positioning and pressing device comprises a crossbeam, two supporting frames, two rotary vertical pressing structures, a lateral positioning structure, a lateral holding structure and two adjustable intermediate supporting structures; the two supporting frames are mounted in sliding manner on two sides of the upper surface of the crossbeam; the two rotary vertical pressing structures are respectively mounted on the tops of the two supporting frames; the lateral positioning structure is mounted on the side of one of the two supporting frames; the lateral holding structure is mounted on the side of the other one of the two supporting frames; and the two adjustable intermediate supporting structures are mounted on the upper surface of the crossbeam and between the two supporting frames.

Abstract: The present invention provides a method for improving the fireproofing performance of vehicle body, including: assuming a combustion position and hazards and defining a combustion damage area of vehicle body model according to 3D model and strength weak area of the vehicle body; calculating deflection of vehicle at a predefined high-temperature load charged onto the combustion damage area by using strength finite element; and judging whether the space between a suspension member under the vehicle and track surface can meet the requirement of travelling capacity under a safe speed after the vehicle is deflected according to the deflection of vehicle or not; if not, performing a fireproofing treatment to the combustion damage area of vehicle body.

Abstract: The present invention provides a rescue passage window for a passenger train, comprising an aluminum alloy outer frame, a hollow tempered glass, a movable sash, a fixed sash, a locking device, a rotating device and a sealing device, the aluminum alloy outer frame is a carrier to connect the structures of any other parts, the hollow tempered glass is inlaid on the aluminum alloy outer frame by the sealing device to form the fixed sash and the movable sash, the movable sash is suspended on the cross beam of the aluminum alloy outer frame by the rotating device to realize its connection with the aluminum alloy outer frame, reliable locking between the movable sash and the aluminum alloy outer frame is realized by the locking device, connection and sealing between the movable sash and the aluminum alloy outer frame is realized by the sealing device.

Abstract: The invention provides an overlapping method of welding groove, a twin wire welding method and a system thereof.

Abstract: The present invention provides a welding method of butted profile. The welding method of the butted profile comprises the following steps of: assembling a profile without backing bars and a profile with double backing bars and/or a profile with a single backing bar of the butted profile together; and welding two lateral parts of the profile without backing bars with the corresponding profile with double backing bars and/or the profile with a single backing bar at the same time.

Abstract: The present invention provides a method and a platform of integrating a heterogeneous workgroup collaborative design system and a PLM system, which is suitable for collaborative design of a large complex product, realizes integration of heterogeneous 3D CAD collaborative design system and PDM system, guarantees consistency of parameter and state between 3D CAD data and PDM data, and facilitates automatic circulation of design data from a product R&D platform to a manufacture executing platform. It implements integration of Pro/E-Intralink and SAP-PLM, transmits the product R&D data in the Pro/E-Intralink to the SAP-PLM, creating or changing corresponding material, voucher, and EBOM, realizes review and re-sign of document, associates the data object with the design project PS or change object, and meanwhile automatically transmits back its property and state to the Pro/E-Intralink, thereby realizing automatic circulation of the R&D data from the Pro/E-Intralink to PDM-ERP.

Abstract: The present invention relates to the technical field of railroad passenger car, and more particularly relates to a sleeper compartment of a railroad passenger car. The sleeper compartment may be an open type or a private booth type, comprising: sidewalls, partition walls, and two columns of longitudinally arranged sleepers that are parallel with each other; each column of the longitudinally arranged sleepers is formed by no less than two sleepers that are joined together, the sleepers comprise an upper-sleeper layer and a lower-sleeper layer; one partition wall is provided between adjacent sleepers; the length direction of the longitudinally arranged sleepers is consistent with the length direction of the railroad passenger car; the longitudinally arranged sleepers at two sides are fixed to the sidewalls respectively, and a corridor is provided between two adjacent columns of longitudinally arranged sleepers.

Abstract: The present invention provides a drag reduction device between carriages of high-speed multiple units for reducing air drag, which belongs to the technical field of railway carriages. The technical solution of the present invention is as follows: a drag reduction device between carriages of high-speed multiple units comprises side windshields arranged on side edges of each end wall of a carriage body. Each of the side windshields includes a bar rubber capsule and a rubber capsule frame whose shapes are matched with a curve of the side edge of the end wall of the carriage body. The rubber capsule is connected with the end wall of the carriage body by the rubber capsule frame. The device is simple in structure, convenient and quick to install, and the multiple units need not to be broken up or made up. Furthermore, the device can effectively reduce the air drag resulting from the impact of the airflow on the end wall of the carriage body and increase the running speed of the train.