SU49079A1 - Automated load gripper - Google Patents

Description

The present invention relates to automatic tongs for gripping and carrying cargo in a kind of ingots, shaft blanks, bandages and the like, not required for the production of these operations by the worker below. It differs from the already known ticks of this kind, consisting of two angular levers suspended from the ring, connected by a cross connection and automatically locked by a folding hook with a counterweight, in that the hooks with a counterweight that are used to hold the ticks in the open position are hinged. on the cross connection, they interact with the stops placed on the arms of the angular levers going to the suspension arms, one of which is rigidly attached to the suspension ring, and the other through a flexible cable (chain) freely.

In FIG. 1 shows a general view of ticks on the side in the working position; FIG. 2-position of ticks before seizure; in fig. 3 is a section along the axis of symmetry.

The proposed tongs consist of two angular levers 4 and 5, connected by cross-linking 7 and suspended with the help of t 2 and 3 to the ring 1, which is put on the lifting hook, and one of the t 2 gs is rigid and rigidly attached (welded) to the suspended

ring 1, and the other 3 is flexible and moves freely around the ring.

To the cross links, m 7 are welded to the stops 8, with which the pliers rest on the object to be gripped 6, and on the gripping ends of the corner levers 4 and 5 are angled tapered pins 21 strengthened. Hooks 10 hinged with a roller 12 are used as a device providing automatic operation of the pliers on cross ties x 7. On the same roller 12, a lever 13 is mounted on the sleeve with a counterweight 14, which interacts with the bar 15, which is fixed on the string 2 and serves to tilt the hook 10 when opening the tongs. To hold the tongs in the open position, the hooks 10 grip the stops 9 fixed on the angle levers 4 and 5. To limit the travel of the hooks 10, there are stops 18 and 19, and the stop 20 serves to restrict the course of the lever i 13 of the counterweight 14.

The operation of ticks is as follows. When carrying a load, ticks have the position shown in FIG. one.

When placing the load 6 on the floor, the crane hook continues to descend, with the cross-links 7 with their unors 8 garden load on the load 6, after which the upper parts of the levers 4 and 5 are lowered into the position shown by the dotted line on