SU1230970A1 - Device for moving hook casing of hoisting crane - Google Patents

Description

The invention relates to lifting devices, in particular to mechanisms of movement of freight carriages, and can be used during loading and unloading and assembly and construction works.

The purpose of the invention is to increase the convenience of operation.

The drawing shows the kinematic scheme of the proposed device.

The device contains a drum 1 when the motor (not shown) is turned on, the drum 1 starts to rotate, driving the carriage 2 moves. At the same time, the force required to move the carriage is less than the total weight of the hook holder 8 and the cargo being transported, so the latter moves along the crane boom together with the carriage remaining at a constant height.

Lifting - lowering the load is carried out by the movement associated with the carriage 2 by rotating the drum 10. In this mode, the traction cable 3, the tension of which the moving blocks 6 move,

provided with a load (not shown). At the same time, one end of the pull rope 3 bends around

bypass unit 4 and mounted on the carriage 2,

and the rope 3 is driven in blocks, moving the hook clip. Moreover, the movement of cargo in height is carried out.

and the other end goes around the fixed blocks | 5 both with the fixed and with the driving unit 5 and the movable blocks 6, passes through the outlet block 7 of the carriage 2 and is connected to the hook holder 8. The movable blocks 6 are connected to the drum 10 by means of a load rope 9 lifting.

The device works as follows.

from the carriage.

When the bypass unit 4 moves, the carriage 2 moves in the direction of the latter’s movement, and the hook holder rises or lowers, compensating for the change in the length of the rope 3 and ensuring its constant tension.

Editor I. Casard Order 2316/25

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Projects, 4

When the electric motor (not shown) is turned on, the drum 1 begins to rotate, the carriage 2 moves. The force required to move the carriage is less than the total weight of the hook holder 8 and the cargo being transported, so the latter moves along the crane boom together with the carriage constant height.

Lifting - lowering the load is carried out by rotating the drum 10. In this mode of operation, the movable blocks 6 move,

by rotating the drum 10. In this mode of operation, the movable blocks 6 move,

and the rope 3 is driven in blocks, moving the hook clip. Moreover, the movement of cargo in height is carried out.

both with fixed and moving carriage.

When the bypass unit 4 moves, the carriage 2 moves in the direction of the latter’s movement, and the hook holder rises or lowers, compensating for the change in the length of the rope 3 and ensuring its constant tension.

Compiled by L. Makeeva

Tehred I. VeresKorrektor M. Pojo

Circulation 799 Subscription

Claims (1)

DEVICE FOR MOVING A HOOK HOLE OF A LOADING CRANE, comprising a carriage with a by-pass unit mounted on an arrow supporting the by-pass unit, a traction rope fixed at one end to the Carriage and stored at the other end through the by-pass unit to the traction winch drum, loaded from the stock rope, a carriage block, one end of which is mounted on a hook clip, and a drum of a cargo winch, characterized in that, in order to increase the convenience of operation, it is equipped with an additional rope and pulley block, through otorrhea zapasovan hoist rope, with one pulley block axle fixedly mounted on the boom, and the second means of said dopolnitelg Nogo rope drum is connected to a cargo winch, the second end of the hoisting ropes is fixed to a traction winch.