SU53998A1 - Cable crane - Google Patents

Description

In order to support the lifting cable of a cable crane, suspensions (so-called "riders) that are movable along a carrying cable and which are coupled to the cable and are driven by the latter simultaneously with the movement of the trolley are usually used.

The cable crane according to the present invention is provided with a device that ensures the successive disconnection of the suspensions with the pull cable when they approach the end tower and turn them on from the opposite tower in order to obtain equal distances between the suspensions at any position of the load carriage in the span of the cable the crane.

In FIG. 1 shows a general side view of a cable crane equipped with hangers supporting a lifting cable; FIG. 2 shows the suspension in section along AA in FIG. 3; FIG. 3 is a side view of the device for activating and deactivating the suspensions using electromagnets; FIG. 4 - the same in the plan; FIG. 5 - switching option

devices with cam washers - side view; FIG. 6- the same in terms of; FIG. 7 is a diagram of the arrangement of the moving contacts controlling the operation of the switching device.

The hangers a (Fig. 1) are evenly distributed along the length of the carrying cable g and are moved along it by a pull cable h, to which the suspensions are connected by means of special clamps. The automatic coupling and uncoupling of the suspensions with the traction cable is carried out by special devices located on the end towers b and c. When the truck trolley i moves from tower b to tower, suspension No. 2, 3, 4 moves away from tower b, suspension No. number 5 approaches tower, and suspension numbers No. 1, 6, 7, 8 are unhooked with a pull rope and are stationary at the respective end towers. Suspension No. 5, approaching the tower with, will be automatically disengaged with the traction cable. Approximately at the same time, the No. 1 suspension will be coupled with the traction cable and come to the line.

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Date: 12/21/2001

Number of pages: 2

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Class 35 a, 18

L 58999

DESCRIPTION OF THE INVENTION

TO AUTHOR'S CERTIFICATE ISSUED BY THE PEOPLE'S NOMISSARIAT OF MECHANICAL ENGINEERING of the inventions of the State Planning Committee under the Council of People's Commissars of the USSR

Yu. F. Egssem.

Device to lock the shutter in two

lifts.

Filed June 9, 1938 for Х ° 17361. Published October 31, 1938.

There are known devices for locking the bolt at the doors of the mine hoists, which comprise a swinging arm, which with its free end interacts with a resistant arm fixed to the stand against the pressure of the spring when the bolt is released.

These devices may damage the spring or jam the block. Therefore, a device is proposed that duplicates the action of the spring and forces the lock to action. This device assumes the use of two additional short arches, placed above and below the main handle on the booth and facing in the opposite direction to the main bow.

In the schematic drawing of FIG. 1 is a front view of the device according to the invention, and FIG. 2 is a section along LL in FIG. one.

On the shaft, a rocker about the axis / link 2 is fastened, equipped with a roller 3 and connected with a bolt blocking the door of the shaft.

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On the lift cab, except for the main bow 4, two additional bows 5 and 6 are rasiolol ene, of which one is higher and the other is lower than the main bow. These two additional arms are convex in the opposite direction compared to the main handle.

The door of the shaft is locked when the link 2 is in a vertical position. When the cabin approaches the door of the lock, the bow 4 deflects link 2 from the vertical to the inclined position 2 and this unlocks the door of the lock. When the cab leaves, link 2 is again brought to the vertical position by an additional shackle 5 or 6 (depending on whether the cab goes down or up) and this restores the blocking action even in the event of spring damage or jamming.

The subject matter of the invention.

A device for locking the bolt at the doors of the gantry lifts, which includes a swinging arm, which interacts with the free end with the stopper arm on the stand against the spring pressure when releasing the shutter, characterized in that, in order to more reliably block, additional arms are used one above and below the main bow and convex in the opposite direction compared to the main bow.

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