MAST LIFTING MECHANISM Russian patent published in 2016 - IPC E04H12/34 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used to lift and turn the mast installed on a vehicle or a stationary object. Mast lifting mechanism comprises a drive and a tie rod, one end of which is movably fixed on the mast, pivoted on the base. First part is made, at least, in the form of two worms with crossed mutually perpendicular axes and worm wheel, which is rigidly fixed on axis of the first worm, arranged on the platform and interacting with gear sector, installed with a possibility of rotation on the axis fixed on the platform, and it is conjugated with the second worm connected to the first drive, installed coaxially with the axis of the platform rotation and with a possibility to rotate therein, wherein the second end is pivoted on the gear sector, at that, the other part of the mechanism is configured to be coupled with the second drive of the third worm, conjugated with the worm sector fixed on the platform.

EFFECT: invention aim is the design simplification, expansion of functional capabilities and improvement of operational characteristics.

9 cl, 3 dwg