SU1643423A1 - Hoisting gear - Google Patents

Description

one

(21) 4483973/11 (22) 09.19.88 (46) 04.23.91. Bul N ° 15

(71) Donetsk branch of the Institute Atomenergo-Gostroyproekt

(72) V.I. Krishtpin and N.V. Black (53) 621.874 (088.8)

(56) USSR Author's Certificate No. 88372, c. B 66 C 19/00. 1951.

(54) LOADING MACHINE

(57) The invention relates to lifting equipment. The purpose of the invention is to improve performance. Cranes 1-4 are formed by G-shaped racks 5 with arrows 6 mounted on them, with trolleys 7 and counterweights 8, support parts 10 moving along rails 11. If it is necessary to lift and deliver cargo that exceeds the capacity of each of the single cranes 1 -4, the latter are connected by arrows 6, the upper parts of the uprights 5, carriages 7 and counterweights 8. 10 Il.

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The invention relates to lifting and handling equipment and can be used as a crane complex for the installation of building structures of nuclear power plants.

The purpose of the invention is to improve performance.

Fig, 1 shows the scheme of a single crane; FIG. 2 is a view A of FIG. 1; on fig.Z

- scheme of coupled crane from two opposing cranes; FIG. 4 is a diagram of paired cranes from two adjacent cranes; Fig. 5 is a diagram of a quad tap consisting of four single cranes; figure 6

- type B in FIG. 3 (connection point of the upper part of the L-shaped stand, boom and carts in FIG. 7) is a fragment of the service area of paired cranes from two adjacent cranes;

FIG. 8 is the same of paired adjacent taps; Fig. 9 shows a fragment of the service area of paired opposing cranes; 10 is the same of a quad tap consisting of four single cranes.

The crane complex contains several single cranes 1-4, which are connected to each other according to a scheme, for example, from two adjacent single cranes 1, 3 or two opposing single cranes 1, 2, or four single cranes 1-4.

The connections of single cranes 1-4 with each other in any of the schemes are carried out by their L-shaped struts 5, booms 6, carriages 7, counterweights 8 by means of telescopic telescopic beams 9. Carts 7 and counter freights 8 can move along the whole length of the corresponding boom 6. Each of the racks 5 is installed with the possibility of rotation on the support part 10 mounted on the rails 11.

The lifting device operates as follows.

Cranes 1-4 are formed by L-shaped support struts 5 with booms 6 mounted on them, trolleys 7 and counterweights 8, support parts 10 moving along rails 11. If it is necessary to lift and deliver a load exceeding the capacity of each of single cranes 1-4 The latter are connected by arrows 6 by means of sliding telescopic beams 9. Similarly to arrows, the upper parts of L-shaped struts 5, carriages 7 and counterfields 8 are connected.

The single cranes 1-4 can operate as full-turn, while due to the possibility of moving the counterweights 8 and the carriages 7 along the entire length of the boom 6, the load is lifted and balanced both on one side of the rack 5 and on the other side of the rack 5.

Claims (1)

Invention Formula A lifting device containing at least two movable bases with L-racks, connected to the upper shelves of the latter a horizontal beam with cantilever parts, counterweights connected to the beam and mounted on the bottom of the latter with the possibility of longitudinal movement of cargo carts. , characterized in that, in order to improve operational characteristics, the counterweights are mounted with the possibility of longitudinal movement on the upper beam of the cross beam, which is made of a composite of two equal parts, with including side and end part bogies, the lateral portion of the counterweight, the movable base, the adjacent ends of the beam parts and the free ends of the upper flanges of L-shaped struts are provided with sliding connecting rods for rigidly joining them provided with the same names of elements, Type A FIG. Vidb FIG. 6 t V4j , 8g / U1 ggp gtr FIG. 9 7 Fig.8 P.U.