SELF-PROPELLED JIB CRANE Russian patent published in 2016 - IPC B66C23/36 

Abstract RU 2599741 C2

FIELD: machine building.

SUBSTANCE: invention relates to jib automotive cranes on special crane chassis. Crane comprises running gear support in form of automotive chassis with support-and-running frame, which is longitudinal beam of box section and connected to front and rear cross beams with appropriate front turning and rear bracing jacks, rotary part in form of rotary platform installed on longitudinal beam, telescopic boom with cable, winch is sectional, front rotary supports are fitted in lugs of front transverse beam to turn using appropriate hydraulic cylinders. Beam is connected with automobile type chassis by means of detachable connection. Front rotary supports are fitted in lugs of front transverse beam to be locked in working position at an angle in range of 50-80° to longitudinal axis of lengthwise box-section beams towards front part of automobile type chassis. Front rotary supports are fitted in lugs of front transverse beam to be locked in transport position at an angle in range of minus 1-2° to longitudinal axis of lengthwise box-section beams towards front part of automobile type chassis. On support-and-running gear part in transport position replaceable working equipment in form of gooseneck is installed, and single unit to switch to working position, and rotating platform is equipped with additional cable winch with possibility of removal or rope re-reeving with telescopic boom section on replaceable working equipment.

EFFECT: increased carrying capacity, reduced dimensions of crane in transport position, ease of control and servicing.

7 cl, 4 dwg

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RU 2 599 741 C2

Authors

Zelenskij Oleg Konstantinovich

Bespalov Dmitrij Vladimirovich

Dates

2016-10-10Published

2015-03-10Filed