MULTIFUNCTIONAL, TELESCOPIC BRIDGE HYDRAULIC RAM AND UNDERCARRIAGE OF MULTIFUNCTIONAL, TELESCOPIC BRIDGE HYDRAULIC RAM Russian patent published in 2009 - IPC B66B9/04 B66C19/00 B66C23/687 B62D57/00 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering field and is provided for maintenance and repair of bridges, sea and embankment walls on mountain highways, for delivery of people and equipment on height, during implementation of special building and repairing works. Bridge hydraulic ram contains load-lifting hydraulic telescope booms of cranes, connected to each other by joint and transfer mechanism, control assembly, connected to hydrosystem by means of pipeline. Also hydraulic ram contains undercarriage, two hydraulic telescope booms of crane are located one above the other, bottom of which is connected to support bar by joint, steering circle and hydraulic actuator. Bottom boom is connected to top boom by means of joint, steering circle and hydraulic actuator. Top boom is connected to working cradle by means of joint, steering circle and hydraulic actuator, working cradle is outfitted by additional control assembly. Undercarriage contains "П"-shaped beam, inside of which between rollers it is located rolling beam with hydraulic rams, pump-controlling aggregate is connected by pipeline to hydrosystems. Undercarriage contains rolling beams, by centre, from below there are fixed bearing rods with platforms, double-ended force hydraulic actuator is fixed on "П"-shaped beam. Case of double-ended hydraulic actuator is connected to ribs of "П"-shaped beam, on which it is located platform, on which there are located driver with control assembly, supporting steering circle, on which it is fixed support bar. On butts of support bar there are fixed hydraulic rams with support bar.

EFFECT: accuracy and rate increasing of installation works.

2 cl, 10 dwg