High-altitude framework type simple plate supporting machine

Abstract

The present invention relates to a high altitude frame simple machine for an erecting plate, the structure is stated below: a gantry binding beam is connected with an upper column of the gantry, which is connected with a walkway beam of a hoisting truss, which is connected with a lower column of the gantry. The hoisting trolley is arranged on the hoisting truss. The front end and the rear end of the hoisting truss are positioned on the hoisting truss. A front walking wheel box group and a rear walking wheel box group are arranged under the lower column of the gantry; the front walking wheel box group and the rear walking wheel box group are arranged at a walkway of a transportation board of a trolley and a front walking wheel rail and a rear walking wheel are arranged at the lower position of the walkway of the transportation road; a plurality of upper stringer joints of the steel truss are arranged on an upper stringer rod of the steel truss, a longitudinal beam of the steel truss beam is connected with the upper string rod of the steel truss beam, and an electric hoist is positioned at the bottom of the gantry binding beam. The present invention has the advantages of free transverse and longitudinal travel, four concrete bridge decks between joints are erected one time; normal universal rod structures are used to make a frame structure. the present invention has the advantages of sound stability, high air-load resistance, short manufacturing time and low production cost, easy and convenient use.

Description

technical field [0001] The invention relates to a high-altitude frame-type simple lifting machine, which belongs to the technical field of high-altitude frame-type lifting machines. Background technique [0002] Usually, when the concrete bridge deck of the slab-truss composite structure beam is of appropriate size, small self-weight, and low pier height, the first few sections are erected on the ground with a crane, and the tire-type truck crane is hoisted to the bridge. The front concrete bridge deck is erected on the surface. However, in the construction of a large-scale bridge with a large concrete bridge deck structure (11.52x5.62m) and a large weight (400KN), if the truck crane is used to erect the beam on the bridge surface, there are the following defects: because the bridge deck structure is large in size, the use of When working with a single mobile crane (limited by the conditions on the bridge surface, the side slab can only be erected with a single crane), the ...

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Problems solved by technology

However, in the construction of a large-scale bridge with a large concrete bridge deck structure (11.52x5.62m) and a large weight (400KN), if the truck crane is used to erect the beam on the bridge surface, there are the following defects: because the bridge deck structure is large in size, the use of When working with a single mobile crane (limited by the conditions on the bridge surface, the side slab can only be erected with a single crane), the working radius is at least 9m, so a car crane with a rated lifting capacity of more than 100t is required Carry out slab erection work; since the concrete bridge deck at the crane station on the bridge deck has not yet been poured in-situ with wet joints, it cannot form a slab truss structure with the steel truss girder to bear the force together, so it can only be used on three sides (or four sides) ) supported simply supported slabs to check the force of the concrete bridge deck construction state. It should be said that the design of the concrete bridge deck in this construction scheme is controlled by the construction load, and the design section needs to be enlarged; it is limited by the working radius of the mobile crane , each time a concrete bridge deck is erected, the crane needs to adjust its position once, and the 4 concrete deck panels in each section cannot be erected in place at one time, and the construction is more cumbersome

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