Improved-type single-girder crane

Abstract

The invention discloses an improved-type single-girder crane. The improved-type single-girder crane comprises a main girder and two end girders, wherein the main girder comprises a steel plate at a bottom part and an upper cover plate at the top part; the flange of the steel plate serves as a walking track for an electric hoist; a plurality of vertical plates are vertically connected between the steel plate at the bottom part and the upper cover plate; oblique plates are obliquely arranged on two sides of each vertical plate; except for the oblique plates on two horizontal ends of the steel plate at the bottom part, the position between each oblique plate and the steel plate at the bottom part is vertically connected with a welding plate I and is obliquely connected with a welding plate II, and the upper end of each welding plate I and the upper end of the corresponding welding plate II are connected onto the same position of the corresponding oblique plate; the two end girders are connected onto two ends of the main girder; the two end girders are separately provided with a cart walking reducer and a motor; and the electric hoist and an electric-control component are arranged on the main girder. The improved-type single-girder crane is light in self-weight, low in production cost, more stable in operation and good in ventilation and heat dissipation, and the quantity of used materials is small; the service life of each component is long; the post-maintenance work is less; triangular support at multiple angles is realized, so that the bearing capacity is larger, and the elevating capacity of the crane is larger; and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the construction field, in particular to an improved single-girder crane. Background technique [0002] The main girder structure of the traditional single-girder crane is: figure 1 As shown, the I-beam 1 is used as the hoist rail, the upper flange is wrapped with the steel plate 2 and the upper part of the I-beam is welded to form a closed structure of the upper part of the steel plate, and the upper part of the I-beam is separated from the upper surface of the steel plate closed structure There is a connecting plate 3 as a reinforcing plate. The lower part of the I-beam is the lower part of the closed structure of the exposed steel plate, which is used as the running track for lifting the electric hoist and carrying the weight of the electric hoist and the weight of the lifting weight. like figure 2 As shown, the two ends of the single-beam main structure are supported by end beams, that is, the I-beam main beam is fixed ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an improved single-girder crane in view of the technical problems in the prior art, such as the heavy structure of the main girder of the single-girder crane, the high cost, and the unstable operation of the electric hoist. "I-beam" structure, the main beam structure is lighter, saving materials, low production cost, good ventilation effect, and more stable operation of electric hoist

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