MOBILE CRANE Russian patent published in 2019 - IPC B66C23/78 

FIELD: machine building.

SUBSTANCE: invention relates to the field of engineering, namely to all-round mobile cranes. Mobile crane contains a car chassis, outriggers, crane frame, turntable, turntable, boom, load lifting mechanism, drum rope winch, load-lifting polyspast, boom tilt angle change mechanism, hydraulic cylinder, link, traction, counterweight. Mechanism for changing the angle of the boom is made in the form of a power cylinder, working for compression and deformation, and is located between the boom and the rocker. Cargo lifting mechanism on the cargo drum section - the cargo polyspast additionally contains a system of guide blocks located in the hinges of the backstage and on the top of the boom. Boom locking mechanism in the transport position is made in the form of a support post on the vehicle’s front bumper, which in the working positions is hinged on the boom.

EFFECT: expansion of the technological capabilities of the crane and the increase in its performance.

2 cl, 3 dwg