Assembly-type standard knot
A standard section and assembly technology, applied in the field of crane machinery, can solve the problems of large volume and increase transportation costs, and achieve the effects of convenient installation and use, reduced transportation costs, and high strength.
Inactive Publication Date: 2015-04-08
ZHEJIANG DEQING HUAYANG TECH
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Problems solved by technology
However, the existing tower cranes are assembled by transporting various components including standard parts to the site for installation by large vehicles. Since the standard sections are made according to the standards, each standard section occupies a relatively large volume, obviously increased shipping costs
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[0011] The present invention will be described in detail below in conjunction with accompanying drawing: figure 1 , 2 As shown, an assembled standard section according to the present invention is mainly composed of four standard sections 1 connected to each other in sequence, and the standard section 1 includes a main rotating rod 2, and the main rotating rod 2 An upper slant bar 3, a middle horizontal bar 4, and a lower slant bar 5 are connected to one side of the upper, middle, and lower parts respectively, and the other ends of the upper slant bar 3, middle horizontal bar 4, and lower slant bar 5 At the same time, there is a piece of connecting piece 6 that is flat with the main rotating rod 2; on the other side of the main rotating rod 2 that is 90 degrees from the side where the upper inclined rod 3, the middle cross bar 4 and the lower inclined rod 5 are installed, a piece is welded. The fixed piece 7 matched with the connecting piece 6 and can be fixedly connected with...
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The invention relates to an assembly-type standard knot, which is mainly composed of four standard knot sheets which are mutually connected in order, the standard knot sheet comprises a main rotation rod, an upper diagonal rod, a middle cross bar and a lower diagonal rod are respectively connected to one side of an upper part, a middle part and a bottom part of the main rotation rod, the other end of the upper diagonal rod, the middle cross bar and the lower diagonal rod are simultaneously connected to a connection sheet which is horizontally arranged on the main rotation rod; a fixing sheet cooperated to the connection sheet is welded on a side surface of the main rotation rod which form an angle of 90 degrees with side surface of the upper diagonal rod, the middle cross bar and the lower diagonal rod; the main rotation rod is a square pipe, a cambered joint is arranged at one end, a connection aperture capable of being plugged by the joint is arranged on the other end, a horizontal auxiliary rod is connected at one side of upper part or lower part of the main rotation rod, a connection square sheet is connected to the other end of the horizontal auxiliary rod, and a vertical joint rod is connected between the connection square sheet and the connection sheet. The assembly-type standard knot has the advantages of simple structure, convenient installation and usage, good structural fastness, large intensity, reduced transport cost and convenient dismounting.
Description
technical field [0001] The invention relates to an assembled standard section for a tower crane, which belongs to the technical field of crane machinery. Background technique [0002] The tower body of a tower crane is usually connected by a series of standard sections, so the standard section is one of the most critical stress components on the crane. It must bear the working load of the crane and the self-weight of the upper structure of the tower. load, and the load brought by the wind resistance of the tower, so the standard section needs to have sufficient strength and rigidity. Based on the above considerations, the existing standard sections are basically composed of fixed installations, and the connections between the various components are firm to ensure that they have sufficient strength and rigidity. However, the existing tower cranes are assembled by transporting various components including standard parts to the site for installation by large vehicles. Since th...
Claims
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IPC IPC(8): B66C23/62
CPCB66C23/62B66C2700/03
Inventor 沈国忠
Owner ZHEJIANG DEQING HUAYANG TECH