Anti-tipping device for front outrigger of a bridge erecting machine
A front outrigger, anti-overturning technology, applied in the erection/assembly of bridges, bridges, bridge construction, etc., to achieve the effect of simple and clear structure, easy maintenance and adjustment, and reduced manufacturing difficulty
Active Publication Date: 2016-09-07
ZHENGZHOU NEW DAFANG HEAVY IND & TECH
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Problems solved by technology
[0004] The purpose of the present invention is to solve the difficult problems in the existing construction technology, to provide a bridge erecting machine front leg anti-corrosion machine that can effectively solve the stability problem of the front leg and effectively improve the safety of use of the bridge erecting machine. tipped device
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[0020] Such as figure 1 , 2 As shown, the anti-tipping device of the front leg of the bridge erecting machine of the present invention includes hinge seats 2 fixed respectively above the two ends of the upper beam 3 of the front leg in a symmetrically arranged manner and respectively fixed on the upper beam of the front leg 3. The L-shaped anti-tipping beams 9 at both ends are respectively hinged to the front outrigger support roller box 1 on the hinge seat 2 at the corresponding end. The outrigger inner cover column 4 is combined with the outer cover column of the outrigger, and the lower crossbeam 5 of the outrigger is connected between the outer cover column of the two outriggers; the front leg supporting roller box 1 is composed of two supporting roller boxes , the two supporting roller boxes are respectively hinged with the intermediate connecting beam 8 through the pin shaft, and a hanging hinge seat is welded under the intermediate connecting beam 8, and the lower part...
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A front supporting leg rollover protection device of a bridge girder erection machine is characterized by comprising hinge bases and L-shaped rollover protection beams, wherein the hinge bases and the L-shaped rollover protection beams are fixedly connected to the two ends of a front supporting leg upper transverse beam symmetrically, and front supporting leg supporting roller boxes are mounted at the hinge bases at the corresponding ends in a hinged manner; the bottom faces of the two ends of the front supporting leg upper transverse beam are combined with supporting leg inner sleeve columns in a fixed connection manner, and the supporting leg inner sleeve columns are sleeved with the supporting leg outer sleeve columns; a supporting leg lower transverse beam is connected between the two supporting leg outer sleeve columns; each front supporting leg supporting roller box is composed of two supporting roller box bodies, and the two supporting roller box bodies are hinged to a middle connecting beam through hinge pins; a hanging hinge base is welded to the lower face of the middle connecting beam, and the lower face of the hanging hinge base is hinged to a connecting base; and the bottom face of the connecting base is provided with a rollover protection transverse beam in a fixed connection manner, and the rollover protection transverse beam is located below the L-shaped rollover protection beams. In the construction process of hole passing or beam erecting, due to accidental longitudinal force, the front-and-back inclining of a front supporting leg is too large, and the problem of longitudinal overturning of the bridge girder erection machine is solved.
Description
technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a safety support device for a front leg of a novel road-rail dual-purpose bridge erecting machine. Background technique [0002] With the continuous development of science and technology and infrastructure in our country, especially in the construction of highways and high-speed railways, various new technologies and new equipment have been widely used and promoted, which has improved the construction speed and quality of railways and highways. [0003] The front outriggers of various bridge erecting machines need to be supported on the pad stones of the bridge pier during general beam erection operations. Due to the limitation of the bridge pier structure, the front outriggers are all single-leg structures, and they must bear the load when erecting beams and passing through holes. The large supporting force, especially when the main girder of the over-spa...
Claims
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IPC IPC(8): E01D21/00
Inventor 代宇张志华陈德利林建青刘剑曲长立韩朋飞孙龙李新恩蔡玉婷
Owner ZHENGZHOU NEW DAFANG HEAVY IND & TECH