WELDING AGGREGATE Russian patent published in 2004 - IPC

FIELD: butt welding processes and equipment, possibly restoration and mounting of railway road rails.

SUBSTANCE: welding aggregate includes control unit 7 and two halves 5, 6 of aggregate that may be moved by means of squeeze cylinders 9 along rails. Each half of aggregate has one pair of clamping shoes 10 that may be moved one towards other by means of clamping cylinders 13 during oscillation motion 12. In order to perform welding process, clamping shoes may moved one towards other by means of clamping cylinders 13 from position suitable for introducing rail head 15 to welding position 16 when clamping shoes 10 are adjoined to webs 17 of both rails 2. Indicator device 18 is used for detecting accurate position 16 of clamping shoes 10 at welding by forming control signal necessary for going on welding process. Said accurate position is determined after termination of oscillation motion 12 according to adjoining of clamping shoes 10 to webs 17 of rails.

EFFECT: enhanced reliability and high quality of welding rails.

6 cl, 4 dwg