SU1306904A1 - Gantry load receiver - Google Patents

Abstract

The invention relates to lifting devices and is intended for lifting lengthy and heavy structures. The purpose of the invention is to reduce the metal content and increase the reliability of operation. The gantry lift contains a rack 1, a removable bolt 2, three-beam elements 3 and 4 (L with about 35

Description

Expansion bolt, central hinge 5, upper hinge 6, lower hinge 7, polyspast 8, lifting load 9, winches. Flat posts 1 in their upper part are interconnected by a deadbolt 2, and along river-split bolts consisting of two three-arms. The invention relates to lifting devices and is intended for lifting long and heavy structures.

The aim of the invention is to reduce the metal content and improve operational reliability.

FIG. 1 shows a lift, general view; in fig. 2 is a view A in FIG. 1, FIG. 3 shows the node I in FIG. 1 (a fragment of a split bolt).

Gantry lift contains the rack 1, removable bolt 2, three-beam elements 3 and 4 split bolt, centralb 5, upper 6, lower 7 hinges, polyspast 8, lifting load 9, winch 10.

The flat posts 1 in their upper part are interconnected by a bolt 2, and along the riverbed-split bolts consisting of two three-beam elements 3 and 4. The latter are interconnected by a central hinge 5, and the other beams are attached to the uprights through the top 6 and bottom 7 hinges. The polyspast 8 is connected with the lifting load 9 and the winches 10,

The lift works as follows ..

When lifting structures to a considerable height, it is desirable that the load being lifted be applied to the elements of the racks of the lift centrally. Therefore, as a rule, they install several separately standing racks, unfasten them by stretching, arrange a crust for fastening the extensions and so on. All this is too cumbersome, stand-alone racks have greater flexibility and considerable metal intensity.

Offered; lift, when used in;

outlets 3 and 4. The radial members 3 and 4 are interconnected by a central hinge 5, and the columns are connected by the remaining rays through the upper 6 and lower 7 hinges. The polyspast 8 is connected with a lifting load 9 and winches, 3 Il.

five

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five

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passes between the elements of racks, provides a central position of effort on the elements of racks. The free length of the branches is 2h,

The two flat racks of the elevator are each single-span multi-storey frame, where, in the plane of the frame, the free length of the branch is a value, h. When connected to one another, the racks are fixed at the bottom with bolts to the base, and at the top - through the detachable p-yl 2. In the plane of the load to be mounted, the free length of the branch is equal to H, which is not rational. To reduce the free length between the branches, split girders are installed, each of which is composed of two three-beam elements 3 and 4, which are interconnected by one of the beams by means of a central hinge 5 and fixed to the uprights by the remaining free beams, moreover, the central 5 and lower 7 hinges are installed with the possibility of a connector at the moment of passing the lifted load 9 vertically upwards. In this case, a single-span multi-storey frame with a hinge in the middle of the transom is created, which allows L is a length equal to h branch.

When lifting the cargo, the polyspaths 8, when approaching the split bolts 3 and 4, the central hinge 5 and the split lower hinges 6 and 7 are separated in any known manner, and the lifting load 9 passes through the split bolts. After the cargo has passed and the split bolts have returned to their original position, the hinges of the central and lower housings return to their original position.

Claims (1)

Invention Formula A gantry elevator containing racks installed on the foundation, interconnected at the top by a transom, equipped with tackles for raising 1 ruza, characterized in that, in order to reduce metal consumption and increase the reliability of operation, it is equipped with detachable cross-bars placed along the racks with each A split bolt is made of two three-beam elements, each of which is connected to one of the uprights by its two beams, by means of the upper and lower hinges, and the oppositely directed rays of both three-beam elements are interconnected through a central hinge, and the lower and central hinges of all three-beam elements are made with the possibility of their connector during the passage of cargo through the split girders. 5 5w WvCvC N NV f (/ e.2 fie. 3 Editor I. Casarda Compiled by L. Trofimchuk Tehred L. Oleinik. Order 1492/21 Circulation 721 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, ul. Design j 4 Proofreader L. Pilipenko Subscription