AUTONOMOUS, MOBILE PRODUCTION FLOW LINE FOR LAYING OF PIPELINE Russian patent published in 2001 - IPC

FIELD: construction of pipelines. SUBSTANCE: sledge equipped with rack for pipes, basket for connecting elements and with system of roller conveyers for moving of pipes is hinge-connected to tractor. Frame is mounted on hinges at sledge end. Hinges allow frame to rotate in horizontal and vertical planes in process of pipeline erection. Ends of frame are provided with centering devices for centering of pipes to be jointed, and frame guides are fitted with moving carriage which is coupled to movement mechanism through system of transmission. Hydraulic press is mounted on carriage. Its hydraulic cylinders are coupled to tractor hydraulic system through system of flexible and rigid pipelines. Pipe is laid on roller conveyer from rack, delivered into centering devices and marked. Then coupling is installed. The second pipe is jointed with the first one. Coupling is shifted to the second pipe end according to marking and squeezed by hydraulic press. EFFECT: extended store of equipment. 2 dwg