FLATTENING TRACK-PACKING MACHINE Russian patent published in 1996 - IPC

FIELD: building and repairing railways. SUBSTANCE: machine has a frame resting on undercarriage with motion drive, power supply system, two additional frames installed on machine frame on both sides of machine lengthwise symmetry plane. The additional frames may be moved in lengthwise direction using the drives. Machine has also a system to control over motion of additional frames. Each additional frame has blocking mechanism. Each frame rests on a roll with a proper end and is connected to a motion drive. The roll is moved along an appropriate rail. A clamp for the rail is rigidly secured to each motion drive. Additional frame motion control system has detector of work area, meters of additional frame travel, meters of spacing between each detector of work area and track-packer, memory unit and instruction generator. The above detectors and meters are connected to instruction generator input through memory unit. Instruction generator output is connected to additional frame motion drive. EFFECT: high productivity. 2 dwg