SU444725A1 - Lifting device - Google Patents

Description

The invention relates to lifting-i-transport vehicles. Lifting devices are known, comprising a pivoting frame, a horizontal retractable boom with a lifting body, a hoisting rope, an envelope guide block mounted on the head of the boom, and hook suspension units, and a lifting mechanism drum, the purpose of the invention is to provide a horizontal trajectory of the displacement body when changing departure arrows. This is achieved by means that the boom of the proposed device is equipped with an additional blockage, mounted on both ends, rounding up 1, 1 with a rope, one end of which is fixed on the swing frame, and the other end is stored on the lifting mechanism drum. Pa drawing shows the described device, the general view. The lifting rope I from the drill 2 of the mechanical lift located on the swinging frame 3 is thrown over the 1 guiding block 4 of the boom 5, through the block 6 of the load gripping body 7, through the additional blocks 8 and 9 located at different ends of the boom and fixed on the swing frame 3, With an increase in the reach, the a branch of the rope lengthens as much as the shortening of branch b, therefore the total length of the vertical sections in the rope in the chain hoist remains constant, and therefore the height of the suspension arm relative to the boom axis does not change. The invention of a lifting device comprising a swinging frame, a horizontal extension boom with a lifting body, a lifting rope, an envelope guide block mounted on the head of the boom, and hook suspension units, and a lifting mechanism drum, characterized in that in order to provide a horizontal movement path lifting body

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the sable is equipped with additional blocks, mounted on both its ends, around the hoist

: flax on the swivel frame, and another on the drum of the mechanism;

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