CHANGCHUN RAILWAY VEHICLES CO., LTD.
|CHANGCHUN RAILWAY VEHICLES CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20130239389||METHOD OF PROCESSING GEAR REDUCTION BOX - A method of processing a gear reduction box is disclosed. Taking the outer wall of the driving gear hole on the gear reduction box as a reference, scribing the center O||09-19-2013|
|20130236245||FRAME ASSEMBLY BASE FOR FRAME STRUCTURES - The utility model provides a frame assembly base for frame structures, being characterized in that, a longitudinal beam and a transverse beam, the transverse beam and an intermediate beam, the intermediate beam and a transverse reinforcing beam, and the longitudinal beam and the transverse reinforcing beam are all connected by bolts, and connecting blocks are provided at connections between the longitudinal beam and the transverse beam and between the longitudinal beam and the transverse reinforcing beam. In the present utility model, bolt connections are used throughout the base, and connecting blocks are provided at the connections between the longitudinal beam and the transverse beam and between the longitudinal beam and the transverse reinforcing beam, so that frame widths can be adjusted to be adapted to assembling of frames having different widths by adjusting widths of the connecting blocks, thereby saving manufacturing costs of tooling, reducing difficulties of tooling storage and management. The base is detachable to facilitate storage and management.||09-12-2013|
|20130213258||FULL BUTT JOINT STRUCTURE OF CONNECTION JOINT BETWEEN SIDE FRAME AND CROSS BEAM OF BOGIE FRAME AND ASSEMBLY WELDING PROCESS - A full butt joint structure of a connection joint between a side frame and a cross beam of a bogie frame, characterized in: the side frame is connected to the cross beam by a connecting seat to realize the full butt joint, a side frame connecting end of the connecting seat, a transport column and a side frame inside vertical plate form a plate-plate butt joint structure, and a cross beam connecting end of the connecting seat and the cross beam form a tube-tube butt joint structure. An assembly welding process comprises: the connecting seat is assembled and welded to the cross beam; a cross beam unit is assembled and welded; the connecting seat is assembled and welded to the transport column and the side frame inside vertical plate; a side frame strengthen partition plate is assembled and welded to an upper plate; and the bogie frame is welded.||08-22-2013|
|20130134643||COMBINED POSITIONING DEVICE FOR SIDE BEAM OF STAINLESS STEEL CAR ROOF - The utility model provides a combined positioning device for a side beam of a stainless steel car roof, comprising an inner cavity positioning block (||05-30-2013|
|20130133393||APPARATUS FOR CORRECTING UPWARD DEFORMATION OF LARGE MEMBER OF STAINLESS STEEL CAR ROOF - The utility model provides an apparatus for correcting upwarp deformation of a large member (||05-30-2013|
|20120073412||WEIGHT REDUCTION RE-PROFILING PROCESS AFTER DYNAMIC BALANCE FOR WHEEL SET OF PASSENGER TRAIN - A weight reduction re-profiling process after dynamic balance for a wheel set of a passenger train, comprising the following steps: designing a spindle end clamp and a tailstock end clamp according to structures of screw holes on an end of train axle; fixing the spindle end clamp to the train axle; hanging up the wheel set, aligning a center hole of the spindle end clamp with a top tip of a spindle end of a lathe, and inserting a handle portion of the spindle end clamp into a drive plate hole; aligning an eccentric hole of the tailstock end clamp with a scribed line on an end for weight reduction after dynamic balance by visual inspection, then sheathing the tailstock end clamp on the train axle, aligning a top tip of tailstock of the lathe with the eccentric hole of the tailstock end clamp, and tightening them; and so on.||03-29-2012|
|20120073151||MOVABLE MEASURING RULER DEVICE FOR MEASURING EXTERNAL CONTOUR PRECISION OF VEHICLE BODY - A movable measuring ruler device for measuring an external contour precision of a vehicle body comprising a movable trolley with a rail and an upright detecting ruler, wherein the upright detecting ruler is fixed on a frame of the movable trolley. The advantageous effect of the present invention lies in that measurement of external contour or intended parts of the vehicle body can be accomplished during rail traveling of the movable trolley, which is installed in parallel with the longitudinal center axis of a vehicle body and includes an upright detecting ruler, thereby a quick and accurate measurement is achieved.||03-29-2012|
|20120067669||SAFETY PROTECTION DEVICE FOR ROOF CONSTRUCTION OF TRAIN BODY ASSEMBLY - A safety protection device for the roof construction of a train body assembly comprises two arch bridge shaped transverse walking boards and a safety rope, wherein the safety rope is fixed between the span of the two arch bridge shaped transverse walking boards. The invention has the following benefit effects: the safety for the worker walking and working on the roof can be guaranteed since the worker walks up to the roof through the arch bridge shaped transverse walking boards and ties the other end of a safety belt which is tied on him to the safety rope.||03-22-2012|
Patent applications by CHANGCHUN RAILWAY VEHICLES CO., LTD.