SU1250515A1 - Hoist - Google Patents

Description

one

The invention relates to a lifting machinery and relates to the vertical movement of various loads.

The purpose of the invention is to increase the reliability of the elevator by eliminating carriage distortions when the center of gravity is shifted from its axis of suspension.

FIG. 1 shows a schematic elevator, general view; in fig. 2 shows section A-A in FIG. one.

The elevator contains a cargo carriage 1 connected by cargo ropes 2, passed through the guide blocks 3 of the upper support-4, with a counterweight 5, on which a winch 6 is installed with a traction cable 7 connected with the upper A and lower 8 supports. The guide blocks 3 from the side of the freight carriage are located along its perimeter, and the ropes, going to the counterweight, are located in the area of its center of gravity. The carriage 1 is mounted in flexible guides 9, and the counterweight is mounted in flexible guides 10 fixed in the upper and lower supports. Upper support 4 is installed on the building 11. The cargo carriage is equipped with a folding ladder 12 with limiters, rollers 13 and catchers 14.

The lift works as follows.

A 2S05151

Winch 6 through tramline 7 moves carriage 1 and counterweight 5 up or down. Moving the cargo carriage and counterweight occurs in

5 flexible guides 9 and 10, which prevent them from rocking. Restraining rollers 13 prevent the cargo carriage from impacting, and the ladder with limiters reliably fixes

0 it during the stop for loading or unloading. From falling down, the cargo carriage is insured by catchers 14, which interact with flexible guides 9. The displacement of the center of gravity of the load carriage from its axis is perceived by any cargo cable 2 and is transmitted to the counterweight. The efforts on this freight cable are the same, but the distances from the axes are different. Therefore, in order to neutralize the overturning moment on the freight carriage, it is necessary so many times less restoring moment for the counterweight, how many times less leverage

25 ropes on the counterbalance of the shoulder of the rope on the cargo carriage relative to their axes. Since the center of gravity of the counterweight is below the rope anchorage and its weight is greater than half the weight, its restoring moment compensates for any displacement of the load.

fig 2

Redacoor N. Kishtulinets

Compiled by L.Lapenko Tehred G.Gerber

Order 4372/18

Circulation 799 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Proofreader A.T. sko

Claims (1)

LIFT, containing upper and lower supports and flexible guides fixed on them, on which a load carriage ^ is mounted and suspended, made with the possibility of moving along the indicated guides using a cable covering the blocks mounted on the upper support and the drive that, in order to increase reliability by eliminating the distortions of the carriage when the center of gravity is shifted from the axis of its suspension, it is equipped with flexible guides mounted on the indicated supports, mounted on the latter with the possibility of shifting counterbalance, additional cables and blocks fixed to the upper support, while one end of each of the cables is fixed to the load carriage along its perimeter, and the other to the counterweight in the region of its center of gravity, and all ends of the ropes are parallel to each other. .in SU „„ 1250515