SU617350A1 - Automatic magnetic load-engaging device - Google Patents

Description

one

The invention relates to the field of lifting devices, namely magnetic grippers, and can be used in various devices for lifting and transporting steel and iron loads.

An automatic magnetic gripper is known, comprising a housing with blocks of permanent magnets placed in it and a system of levers pivotally connected to the housing and hung on a hook of a lifting mechanism 1.

An automatic magnetic gripper is also known, comprising a housing with movable and non-rotating blocks of permanent magnets located therein and a mechanism for controlling the movable block of permanent magnets, including a rod rigidly fixed to the moving blocks and visited on the hook of the lifting means 2.

The disadvantage of these grips is the difficulty of carrying out the operation but the release of the cargo from the seizure due to the presence of residual magnetic flux in the zone of contact of the cargo and magnetic seizure.

The purpose of the invention is to facilitate the release of grip from the load.

This is achieved by the fact that the control mechanism of the movable blocks is provided with a stop mounted on the rod, two levers hingedly mounted on the housing and cooperating with said uior as it moves, and movable vertical brushes, each of which is spirally connected to the corresponding lever. mounted on the side walls of the case. FIG. 1 shows the proposed capture in the initial state, general view; in fig. 2 - the same at the time of attraction and transfer of cargo; in fig. 3 - the same, at the time of release of the goods; on . 4 - the same, at the beginning of the rise of capture in the original

condition.

The automatic magnetic gripper consists of a non-magnetic case 1 in which two fixed blocks of 2 permanent magnets are fixed, facing opposite poles in the direction of the ferromagnetic load 3 and equipped with pole tips 4. In addition, in the housing 1 between the fixed blocks of 2 magnets is placed a movable block of 5 permanently data

magnets, which by means of the rod 6 with the stop 7 is connected to the hook lifting capacity of the south mechanism. On both sides of the rod 6 on the housing 1, two levers 8 are installed. The levers 8 are connected with one end at one end

with the rods 9 passing through the guides 10, and the others can interact with the anvil 7.

Works capture as follows.

With the help of a lifting mechanism, it is transferred and lowered onto load 3 (see Fig. 2), which under the influence of a magnetic field is attracted to fixed blocks of 2 magnets. In this case, the movable magnet unit 5 is held by the hook of the lifting mechanism in the upper position.

In such a state, the cargo is transferred and lowered to the place of unloading (see Fig. 3). The movable magnet unit 5 is then, under the action of its own weight and the pull-in force, moved to the lower position. In this case, the effect of the magnetic field is sharply reduced and the load is released.

During the subsequent movement of the movable block 5 of the magnets by the hook of the lifting mechanism to the initial state (see Fig. 4), the ends of the levers 8, interacting with the stop 7, unfold and lift the body 1 above the load 3. The implementation of the proposed grip will facilitate the automatic release of the load after its delivery to the place of storage.

Claims (2)

1. Patent of the GDR No. 105428, cl. 35/6/23, 1973. 2. USSR author's certificate Yao 413100, cl. In 66C 1/04, 1974.