Pipe laying crane

Details Pipe laying crane Pipe laying crane

B - Operations, Transporting

66

C

212/24.1, 212/41

B66C 23/72 (2006.01)

Patent

CA 1079691

Abstract of the Disclosure This invention relates to load-lifting machinery and can find utility when applied to pipe laying cranes made use of in construction large-diameter pipings. The pipe laying crane of the invention comprises the under- carriage mounting the framework with the engine and transmis- sion, and mounted equipment. The mounted equipment incorporates the loading boom with a pipe hanger, the counterweight and the hoist which is connected to the loading boom and to the pi- pe hanger through a system of tackles. The undercarriage is made sectionalized, i.e., it is composed of the two track bogie arranged on both sides of the framework, one of said bogies carrying the loading boom. The latter bogie is connected to the other bogie with a possibility of setting motion in the direction square with the frame axis for changing the track gau- ge of the undercarriage. Besides, the output unit of the trans- mission that imparts torque to the boom-carrying bogie, is made extensible. The pipe laying crane of the character set forth hereinabo- ve, while in working position (i.e., with the boom-carrying bogie extended), has a greater load-lifting capacity than the prior-art cranes of the same weight, whereas when in the posi- tion with the minimized track gauge between the bogies, the cra- ne is transportable by rail or on trailers with its undercarria- ge in the assembled state.

275944

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