The method of hoisting the main girder of gantry crane with partial load by single equipment
A technology for installing the main girder and equipment of the gantry crane, applied in the direction of load hanging components, transportation and packaging, etc., can solve the problems of high safety risks, achieve the effect of improving safety, ensuring success, and the method is simple and effective
Active Publication Date: 2018-05-01
SHANGHAI ZHENHUA HEAVY IND
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
If the inward opening is reduced to 102 meters, only a single floating crane can be used for hoisting the main girder, and when the off-center is 11.22 meters, the safety risk is very large, and it is also a key link for the success of the gantry crane assembly
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0037] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same numbers will be used throughout the drawings to refer to the same or like parts. In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the description of the present invention may be selected by the applicant according to his or her judgment, and the detailed meanings thereof are set forth herein described in the relevant section of the description. Furtherm...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a method for hoisting a gantry crane main beam through single equipment in an eccentrically loaded mode. The method comprises the following steps that firstly, a main beam overall hoisting scheme is designed; secondly, the main beam is hoisted according to the characteristics of the geographical location of a gantry crane final assembly wharf after the hoisting scheme is determined; thirdly, the gravity position of the main beam is calculated, it is determined that an upper trolley and a lower trolley are mounted on the flexible leg side of the main beam, the hoisting gravity position of the main beam is adjusted to coincide with the center positions of floating cranes, and the fixing positions of the upper trolley and the lower trolley on the main beam are determined correspondingly; fourthly, joists for main beam hoisting are designed and are mounted in position; fifthly, four sets of toppling-prevention tools are designed on each joist; sixthly, rope stopping tools are designed on an upper wing plate of the main beam, and two wave-wind hoisting lugs are mounted on the sea side faces of the two ends of the main beam; and seventhly, seven-layer plywood is mounted between the joists and the main beam. The method is simple, effective and easy to implement, the safety of the gantry crane main beam can be effectively improved, and success of gantry crane final assembly can be ensured.
Description
technical field [0001] The invention relates to the field of large-scale equipment assembly, in particular to a method for hoisting the main girder of a gantry crane with partial load for a single piece of equipment. Background technique [0002] In the field of large-scale equipment assembly, gantry cranes are usually used for hoisting. For example, the 1,600-ton gantry crane of Jiangnan Shipyard has a height of 125 meters, which is currently the tallest gantry crane in China. The main girder of a conventional gantry crane is a single box with a trapezoidal structure. Two upper trolleys, one lower trolley and two maintenance cranes are installed on the main beam. [0003] In the prior art, the hoisting of the main girder is a major problem in the general assembly of this gantry crane. Since the opening of the gantry crane assembly wharf is about 148 meters, an outfitting wharf is built horizontally at its front. If the inward opening is reduced to 102 meters, only a singl...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/04B66C13/06B66C1/12B66C1/16
CPCB66C1/122B66C1/16B66C13/04B66C13/06
Inventor 周力伟周井华罗庆李小红俞丽郭敏郑毓中陈鹏荣
Owner SHANGHAI ZHENHUA HEAVY IND