SU5945A1 - Device for holding the broken chain elevator - Google Patents

Description

In FIG. 1 shows a section along AB of FIG. 2, FIG. 2 is a section along VG of FIG. 1, fig. 3-bearing, FIG. 4 - unequal shoulder lever, FIG. B-axis and fig. 6 - support.

A pair of unequal arms a-b is interconnected by connections B-B and mounted on the D-axis rotating in the support plates e. Bearings are placed either on the bins connecting the vertical racks of the elevator, or, in the absence of such, on specially installed supports for this goal. The a-b levers are made unequal at the same time, a part of the lever, located towards the loaded part of the elevator, moving upwards, is made somewhat larger than the part of the lever, located towards the empty part of the elevator, moving down.

The total length of the levers is made so that it can overlap the vertical grooves of the elevator, which serve to guide the movement of the bucket and are formed by the squares And, riveted to the K-pillars. can occupy the AB position indicated in FIG. 1. Since the shoulder is as much: the lever is longer, and therefore more desirable, the levers all the time will fall with their long part onto the supports L, which are riveted to the legs of the LH, thus occupying a horizontal position. Moving up and down the bars, the levers will again be brought to the ab position and fall back onto the support as they move further, etc. When the chain is broken at the place where the elevator load is the highest, i.e. in its upper part (regardless of the rotation of the drum), both the loaded chain and the free chain of the elevator rush down (fall). At this time, the ab levers manage to take a horizontal position, since the shoulder is already carried along by the slats, not upwards, but downwards, and lie down on the supports A, thus becoming in the path of movement of the slats of the buckets and keeping them from falling. Thus, a part of the elevator chain will hang on the larger arm of the lever ab, bring them to a horizontal position, which means that the upper arm of the lever will block the way to drop the free part of the elevator chain that is hanging on them as a lighter arm.

To balance the lever, the load suspended from the shoulder of the auk should be so many times less than the load suspended from the shoulder m: b, how many times the shoulder is already larger than the shoulder of the Ukb. If, for example, the arms of the lever are related to each other as 1: 1.5 and if the weight of the elevator bucket is 45 kg and with a load of 60 kg, then with a delay at the larger end of the lever, say, ten loaded buckets are smaller steadily may be delayed, eighteen to twenty. Since the levers hold the same number of buckets on either side, the fall of the chain

the elevator will be stopped, and in order to facilitate the construction itself and create a lesser load on the levers, it is better to install several pairs of levers along the height of the elevator; this also achieves a great guarantee of picking up the elevator chain at any place during its interruption.

The subject of the patent.

The device for holding the broken chain of the elevator, consisting of pivot rods mounted on the elevator frame, positioned at a certain vertical distance and picking up the chain when it breaks beyond the strips of buckets, characterized by the fact that the pivot rods are made in the form of unequal shoulders a and b, connected between connections B-B and having a common axis G, mounted on the frame with branches of an elevator, with the long arms of levers designed to grip the strips 3 of the hoist chain, lean their ends horizontally m position of the levers on support LL.

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