Large hoisting system allowing gradient to be adjusted in air and application
A sloped, large-scale technology, applied in the erection/assembly of bridges, bridges, buildings, etc., can solve problems such as difficulty in meeting the needs of full-scale scaffolding sites, inability to meet economic and safety requirements, and large tonnage of steel structure bridges. The effect of saving and temporary support materials, meeting the design intent, and ensuring safety
Inactive Publication Date: 2015-03-11
QINGDAO FIRST MUNICIPAL ENG CO LTD
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Problems solved by technology
[0002] The steel bridge closure technology is a commonly used construction method in the construction of steel structure bridges. In bridge construction, due to the limitation of road traffic, it is difficult to meet the needs of the site for full scaffolding.
Conventional hoisting methods, although suitable for large-scale hoisting, often need to adjust the angle after the hoisting object is in place, and cannot be accurately positioned due to the weight of the hoisting object
Combining the past hoisting experience, combined with the characteristics of large tonnage and complex line shape of the steel structure bridge of the third phase of the expressway, the traditional hoisting method has been unable to meet the needs of this project in terms of economy and safety
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[0023] Referring to the accompanying drawings, a detailed description will be given of a large-scale aerial slope adjustment hoisting system of the present invention.
[0024] A large-scale aerial gradient adjustment hoisting system includes an adjustment cable 1, a balance cable 2, a string wheel 3, a hook 4, and a hook pulley 5, such as figure 1 As shown, there are four adjusting cables 1 , a chain block 11 is provided at the lower end of the adjusting cables 1 , the upper end of the adjusting cables 1 is hung on the hook 4 , and the adjusting cables 1 are connected to the box girder 7 through the lifting lug 6 . The present invention adopts chain block 11, which is strong and wear-resistant, has high safety performance and is convenient for adjustment. Such as figure 1 As shown, there are two balance cables 2, the ends of which are directly hung on the box girder 7 through the lifting lugs 6 respectively, and the two balance cables 2 pass through the serial wheel 3. Tande...
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The invention relates to the field of hoisting device machining and manufacturing, in particular to a large hoisting system allowing the gradient to be adjusted in the air and application. The large hoisting system comprises adjustment cables, balance cables, transmission wheels, a hook and a hook pulley, wherein the number of the adjustment cables is at least four, chain blocks are arranged at the lower ends of the adjustment cables, the upper ends of the adjustment cables are hung on the hook, the number of the balance cables is two, the transmission wheels include the first transmission wheel and the second transmission wheel, one balance cable penetrates through the first transmission wheel, the other balance wheel penetrates through the second transmission wheel, and the first transmission wheel and the second transmission wheel are connected through a connection rope cable which penetrates through the hook pulley. The large hoisting system is high in accuracy and efficiency, easy to operate, convenient to detach, assemble and transport, low in self-weight and easy to operate, an existing device is refitted, and the large hoisting system can be repeatedly used.
Description
technical field [0001] The invention relates to the field of hoisting equipment processing and manufacturing, in particular to a large-scale aerial gradient adjustment hoisting system and its application. Background technique [0002] The steel bridge closure technology is a commonly used construction method in the construction of steel structure bridges. In bridge construction, due to the limitation of road traffic, it is difficult to meet the site requirements for full-house scaffolding. Conventional hoisting methods, although suitable for large-scale hoisting, often need to adjust the angle after the hoisting object is in place, and cannot be accurately positioned due to the weight of the hoisting object. Combining previous hoisting experience, combined with the characteristics of large tonnage and complex line shape of the steel structure bridge of the third phase of the expressway, the traditional hoisting method has been unable to meet the needs of this project in term...
Claims
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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 马健由兆升牛连刚叶晓志王永华吴庆生王兆伟赵杰
Owner QINGDAO FIRST MUNICIPAL ENG CO LTD