SU1452783A2 - Arrangement for assembling-disassembling column type apparatus - Google Patents

Abstract

The invention relates to devices for mounting and dismounting column type apparatus during the repair and reconstruction of equipment. The purpose of the invention is to increase the productivity of work. The device is a hinged construction — a turning portal consisting of two pairs of telescopic struts 3 and 4 and a bolt 5. One pair of struts rests on hydraulic jacks 8, the inner glasses of all four struts are filled with sand, a. their bottom is made with holes. On the gantry of the portal 5 are suspended two polyspast 9, connected with the lifted apparatus. The cascading branches of the polyspasts run along the racks, bend around the diverter blocks 10 at the base of the racks and fasten to the upper part of the apparatus. The free ends of the polyspastovffuf / t S a "(L

Description

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FIG. g

each other through equalizing blocks 11 on the girder of the portal. When working the jacks, the telescopic stands 3 and 4 are raised together with the bolt 5 to raise the device. The sand through the openings of the open bottoms of the inner cups is discarded into the outer cups. When idle

the outer cups of the outer struts return to their original position with the jacks pistons. The lifting of the apparatus occurs by increasing the lengths of the telescopic struts and reducing the length of the tackles. The device can be effectively applied in cramped conditions. 3 il.

one

The invention relates to devices for the installation of column-type tower apparatus by the method of turning around a hinge, can be used in the repair and reconstruction of technological equipment and is an improvement from a valid device according to the author. St. No. 1330292.

The aim of the invention is to increase the productivity of work.

FIG. 1 shows a device and a diagram of the positions of the lifted apparatus; in fig. 2 is a view A of FIG. one; in fig. 3 - scheme of the chain hoist ropes.

A device for mounting and dismounting. A device of column type 1 contains a portal portal 2, made in the form of an I hinge frame of two pairs of telescopic racks 3 and A and a bolt 5. Racks 3 are fixed on stationary support plates interconnected and supporting the hinge 6 is rigidly connected by means of the hinges 7. On the outer glasses of the telescopic struts 3 there are guide sleeves in which the telescopic stands 4 are placed, supported by their outer glasses on the hydraulic jacks 8. The hydraulic jacks B are fixed us on the hinge base 3. The inner uprights glasses of telescopic struts are filled with sand.

The pulley blocks 9 are hinged on the bolt 5, and tap-off units are installed at the base of the uprights 3. 10. The creeping branches of the polyspaths 9 run along the uprights 3 rounding the tap-off units 10 and fastened to the upper part of the lifting apparatus 1. The free ends of the polyspasts 9 are connected between

five

0

five

0

five

0

a through equalizing blocks 11, placed on the bolt 5.

On the opposite side to the device 1 is connected to the power cylinder 12, performing the function of the damper.

The device works as follows.

With the working stroke of the jacks, the B stands 4 are raised up together with the bolt 5 by the amount of the jack stroke. At the same time there is a rise of the apparatus 1, suspended on the hoists 9, and the extension of the inner glasses of the uprights 3 from the outer glasses. At. This sand from the inner glasses of the uprights 3 through the holes in the bottoms of the inner glasses is poured into the outer glasses of the uprights 3, filling the resulting void.

When idling, the pistons of the jacks 8 return to their original position under the influence of the weight of the outer glasses of the uprights 3. The outer glasses of the uprights 4 are lowered down in the guide sleeves of the uprights 3. The inner glasses of the uprights 4 remain hanging on the crossbar 5 and the sand from them goes through the hole at the bottom of the bar is poured into the outer cups, filling the resulting void. The jacks are turned on again and the duty cycle is repeated.

Lifting apparatus 1 occurs by increasing the lengths of the telescopic racks 3 and 4, and reducing the lengths of the tackles 9. The lengths of the tackles 9 are reduced by increasing the lengths of the telescopic uprights and increasing the distance from the axes of the tap-off units 10 to the point of fixing the ropes on the top of the apparatus.

When apparatus 1 reaches position I (unstable equilibrium)

The power cylinder 12 (damper) comes into operation and the apparatus 1 smoothly lowers onto the foundation in position II.

The use of the proposed device in operation allows one to simply and reliably carry out a lifting to a vertical position of tons of human column type apparatus in cramped conditions.

Claims (1)

Invention Formula A device for mounting and dismounting column type machines according to the author. St. No. 1330292, different /// / jf / /// / 7 / / at / / f- / 1 By the fact that, in order to increase the productivity of the work, the rotary portal is equipped with two telescopic additional posts, jacks and guide sleeves, with the additional stands connected pivotally to the bolt, supported on jacks with the ability to move in guide sleeves fixed on the outer glasses of the main supporting columns, and the inner glasses of all telescopic racks are filled with bulk material and are made with holes in their bottom .. S, FI.3