SU751786A1 - Bridge crane span structure - Google Patents

Description

(54) BRIDGE CRANE STRUCTURE

one

The invention relates to the field of hoisting and transport machinery, namely, bridge type cranes with single-girder bridges.

The span structure of a single-girder bridge crane is known, which contains an upper and lower calf, a vertical wall, a diaphragm mounted on the upper seam guide for supporting the cantilever load trolley, and for supporting wheels 1.

A disadvantage of the known span is overestimated. Estimated unjustified metal intensity.

The aim of the invention is to reduce the metal structure, creating a more cost-effective LOW-CRANGE UNIFORM bridge crane.

This goal is achieved by that the flyover is made in the form of an open asymmetrical profile, and each diaphragm is equipped with a bracket, on which a guide for holding wheels of a cantilever cargo body is located: hedgehogs.

FIG. 1 shows the proposed span, the general view; in fig. 2 - section A-L in FIG. one.

The aerial structure consists of an upper} and lower 2 holes and a vertical wall U. On the cross section / above the vertical wall 3 a guide 4 is installed for support wheels of a cantilever trolley. Over the entire length of the span, the diaphragms 5 with brackets 6 fixed to the upper arm are placed on the calculated grids. ; st m diaphragm.

On the brackets there is a mounting 7 installed for holding the wheels of the console of the loading trolley.

Near the vertical wall and looking at the cabinets 8 with electrical equipment. Iv the lower parts of the diaphragm zaapeplen; gallery 9 for the passage along the bridge.

15

As the cargo carriage moves, the load from the travel wheels is transmitted through guide 4 and along with / to wall 3, while guide 4 is placed directly above the wall. From onpos-ni20, the carriage is held by wheels moving along guide 7. The position of guide — sa-sa stees 6 increases the distance between supporting and holding wheels: 25 liters: kki, that cni: aoT load on the holding wheels and reduces dimensions H iip; nlruy 7.

Asymmetrical design of the actual open profile, consisting of the upper

30 ca Ca /, lower ca 2 and wall 5, diss; . (gan ;. ii designed as so ;;. orazom. psr:: butdistuct101tsa external impact through the center of the bend of the cross section, the HS significantly reduces the crust of the load and deformacillus ;YOU ).

Formula and 3 about b r e

The bridge crane truss structure, consisting of the top and bottom, vertical .-: the first screen, the diaphragm installed: and along the top is directed by the axis for the oosria;:; The cantilever rpvaoBoii teuyuiviv and napravuyu yuyuyu for the wheels of wheels, about the fact that, in order to reduce the metal structure, the span structure is made as an open asymmetrical profile, and each diaphragm is provided with a bracket on KOTO-opbi.v there is a guide

Cantilever wheels ;:

for area-holding carts.

The source of information taken into account in the examination:

1. Modern foreign bridge cranes for general purposes. Review;: information. NIIinformt zhmashch, 6-74-5, M., 1974, p. 10,

Claims (1)

Forms of l and zobrety and I The span structure of an overhead crane comprising an upper and lower belt, a vertical wall, a diaphragm, a guide mounted on the upper belt for the opera wheels of the cantilever truck and a guide for the holding wheels, which is due to the fact that . in order to reduce the metal consumption of the structure, the span is made in the form of 5 open asymmetric profiles, and each diaphragm is equipped with a bracket, on which there is a guide for the holding wheels of the cantilever freight cart.