SU895883A1 - Gripping apparatus - Google Patents

Description

(54) CAPTURE DEVICE

I

The invention relates to means of mechanization of loading and unloading operations and can be used, for example, for loading and piling packages of timber, connected with semi-rigid slings, PS or other load carrying means, having trailed loops.

A gripping device is known, comprising a traverse with slings attached to it, carrying hooks at free ends, connected by flexible links to a mechanism for uncoupling them with a load, and having safety devices overlapping their seams 1.

In this construction, the safety device is made in the form of a coil spring placed in two mutually perpendicular holes made in the hook horn. This predetermines the disadvantages of the known device. The stiffness of such a spring must be large to meet the requirements of safety, i.e. eliminate the possibility of spontaneous falling out of the hook (looping). In turn, this makes it difficult to introduce a loop into the mouth of the hook and requires

significant physical effort on vypol-. Some of this operation due to the need to overcome the force of the spring.

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

The goal is achieved by the fact that the safety device of the hook of the gripping device contains a spring-loaded pusher and a pivotal eccentric mounted on the axis interacting with the pusher, while the axis of attachment of the eccentric is 10 relative to the axis of the pusher in the direction of the hook hook.

FIG. 1 shows the proposed gripping device, general view; in fig. 2 - the same, side view; in fig. 3 shows the node I in FIG. 2; in fig. 4 shows section A-A in FIG. 3

15

The gripping device contains the yoke 1 with the self-extracting mechanism 2 installed on it and the slings 3 suspended at the ends. At the free ends of building 3 there are hooks 4, which, in turn, are connected to the self-coupling mechanism 2 flexible

20 connections 5 through a vertical frame movable in a vertical plane. Each hook 4 is provided with a safety device, which is made in the form of a hook 4 fixed on the horn by means of an axis 7 of a rotary eccentric 8 and a pusher 9 in contact with a spring 10. It is attached to it 9 is mounted in the body of the horn of the hook 4. The surface of the rotary eccentric 8 interacting with the pusher 9 has a curved shape and a flat (or concave) area for fixing it in the working position. The axis 7 of the mounting of the rotary eccentric 8 is displaced relative to the longitudinal axis of the pusher 9 towards the throat of the hook 4 so that shoulder a is less than shoulder c.

The gripping device operates as follows.

In the initial state without a load, the self-uncoupling mechanism 2 is unlocked and the flexible connections 5 are weakened. The pick-up device is lowered over a package of timber 11, connected with load-carrying means such as the PS 12 with trailed loops 13. Then the hooks 4 are inserted into the loops 13. At the same time, the eccentric 8 rotates towards the throat, overcoming the resistance of the spring 10 of the pusher 9, and the shoulder a is insignificant in magnitude, and the force for turning the eccentric 8 is also insignificant. After hooking hooks 4 with loops 13, the eccentric 8 under the Action of the spring 10, the pusher 9 returns to its original operating position.

After that, the gripping device with the timber package 11 is lifted and moved by a crane {not shown) to the loading area or shtabelezi.

For stacking the package of timber 11, the grabber is lowered, to contact with the frame 6, the crosshead. In this case, the self-uncoupling mechanism 2 is activated, which keeps the frame b in the raised position (in contact with the cross-bar 1). When lifting

the grippers flexible couplings 5 are tightened by turning the hooks 4 with the seawawl down and pulling them out of the engagement with the loops 13, which, at the exit, interact with the eccentrics 8, turning them on the axis 7 to the outside. After the loops 13 have left the throat hooks 4, the eccentrics return under the action of the springs 10 to the initial working position. After that, the self-coupling mechanism 2 is turned off and the system is returned to its original state. The gripping device is ready to attach the next package.

The introduction of this device by reducing the time for attaching packages allows you to increase labor productivity and crane up to 10% and reduce the cost of loading and piling work by 0.03-0.05 p. on 1 ton of cargo.

Claims (1)

Invention Formula A pick-up device, mainly for packaged goods, contains a traverse with slings attached to it, carrying hooks at the free ends connected by flexible ties to a mechanism for uncoupling them with the load and having safety devices that overlap their seams, characterized in that ease of operation, each safety device contains a spring-loaded pusher and a rotatable eccentric mounted on the axis, interacting with the pusher, while the axis of attachment of the eccentric ntrika offset relative to the axis of the pusher in the direction of the hook throat. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 569524, cl. 66 C 1/36, 1974 (prototype). / 7 Fg / g.2