SU1177258A1 - Crane cargo suspension - Google Patents

Abstract

A CRANE CARGO SUSPENSION containing a spatial toggle mechanism attached to the crane truck frame and cargo lock, characterized in that, for the sake of convenience, it is equipped with rigid triangular elements for attaching the spatial link-lever mechanism to the cargo truck frame and cargo hook , with the base of rigid triangular elements pivotally mounted at two points on the frame of the cargo trolley and the load grip, and the tops are pivotally attached to the extreme angle ov hinges of the spatial hinge mechanism. (L N9 SP 00

Description

The invention relates to hoisting and transport engineering, namely, to the cargo suspension of cranes.

The purpose of the invention is to ensure the convenience of the cargo suspension of the crane.

In FIG. 1 shows a crane cargo suspension, front view; in FIG. 2 is the same side view.

The crane cargo suspension comprises a cargo trolley 1 and a plate 2 to which, using brackets 3, are pivotally attached at two points of the base of the rigid triangular elements 4 so that these bases are perpendicular to the diagonals of the spatial articulated lever mechanism 5. The extreme ends of the rigid triangular elements 4 are pivotally attached angular hinges 6 of the spatial articulated lever mechanism 5. A load gripper 7 is mounted on the plate 2. If necessary, the load gripper 7 can be equipped with a rotation mechanism around a vertical axis (not shown). Plate 2 using a block 8 attached to it, is suspended on the ropes 9 of the lifting mechanism of the trolley.

The apparatus operates as follows formed _{May 2} Zoom.

Raising and lowering the load gripper 7 with or without cargo is carried out by ropes 9 of the trolley 1 lifting mechanism. When lowering the load gripper 7, the transverse

Fig i

Compiled by M. Moskalets Editor G. Volkova Order 5458/20 Tehred I. Veres Corrector A. Tyasco Circulation 804 Subscription

VNIIIPI of the USSR State Committee for Inventions and Discoveries

113035, Moscow, Zh-35, Raushskaya nab., D. 4/5

Branch of the PPP "Patent", Uzhhorod, st. Project, 4

Claims (1)

CRANE CARGO SUSPENSION, comprising a spatial articulated linkage mechanism attached to the crane truck trolley frame and cargo gripper, characterized in that, in order to ensure ease of operation, it is provided with rigid triangular elements for attaching the spatial articulated linkage mechanism to the truck trolley frame and cargo gripper, while the bases of the rigid triangular elements are pivotally mounted at two points on the frame of the cargo trolley and the cargo gripper, and the vertices are pivotally attached to the extreme corner to the hinges of the spatial articulated lever mechanism. the spatial spatial articulated lever mechanism 5 is reduced, and the rigid triangular elements 4 are rotated around their bases so that the angle between _{5 of} their plane and the horizontal plane increases. When lifting the load 7, the cross section of the articulated lever mechanism 5 increases, and the angle between the plane of the rigid triangular elements 4 and the horizontal plane decreases ¹⁰ When lifting the cargo to its maximum height, the articulated lever mechanism 5 is folded and located between the crane beams without leaving the size of the truck 1 and without limiting the height of the lift. When accelerating, ₁₅ moving and stopping the crane or bogie 1, the load gripper 7 does not swing, since the linkage mechanism 5 constantly carries out rigid connection in the horizontal plane between the truck 1 and the plate 2 to which the load gripper 7 is attached, which allows you to quickly capture the load and lay it in the right place without the help of crane workers. When lifting and lowering the load, the articulated lever mechanism 5 and the triangular elements 4 do not absorb the load from the weight of the load suspended on the ropes 9, but perceive the load only from the inertia forces arising from the acceleration and deceleration of the crane or trolley 1 and the rotation of the load.