Method for traveling and operating portal crane on large-angle slope
A gantry crane, large-angle technology, applied in the direction of rail system, traveling mechanism, transportation and packaging, etc., can solve the problems such as the inability to reuse the slope adjustment foundation, the inability to build the slope adjustment foundation, and the increase of the project cost, so as to reduce the height. and weight, simplify construction, and speed up construction progress
Active Publication Date: 2014-12-31
中铁二十四局集团上海铁建工程有限公司 +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantage of this solution is that the construction of the slope adjustment foundation to make the large-angle slope completely flat increases the cost of the project, the slope adjustment foundation cannot be reused, and some grounds have certain restrictions on the bearing capacity and cannot be built to completely level the slope. The slope adjustment foundation; when the gantry crane arrives at a new project, the slope adjustment foundation with a large amount of engineering must be rebuilt, resulting in unnecessary waste of manpower and material resources
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
[0022] The features of the present invention and other relevant features are described in further detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:
[0023] Such as Figure 1-6 , the marks 1-6 in the figure are respectively: main beam 1, lifting trolley 2, lifting device 21, longitudinal traveling trolley 22, transverse traveling wheel 23, longitudinal truss 24, outrigger structure 3, fixed outrigger 31, telescopic Outrigger 32, hydraulic cylinder 33, outer sleeve 34, inner sleeve 35, cross bearing 36, cross shaft 37, cross bearing 38, cross shaft 39, traveling cart 4, wheel 41, iron shoes 42, ramp 5, Strip foundation6.
[0024] Example: such as figure 1 , 2 , 3, the present embodiment specifically relates to a method for a gantry crane to travel and operate on a large-angle ramp. The large-angle ramp is specifically a longitudinal slope above 3.5% (that is, 2°). The bottom...
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 in particular relates to a method for traveling and operating a portal crane on a large-angle slope and can be applied to girder erection operation in a special environment. The method comprises the steps of respectively arranging a telescopic supporting leg and a fixed supporting leg which are longitudinally distributed at the bottom of a supporting leg structure of the portal crane, wherein the telescopic supporting leg is driven by a hydraulic cylinder; constructing a strip foundation on the large-angle slope so as to reduce the slope angle, laying a steel rail, starting the portal crane to travel to a preset position in an idle load, and adjusting the height of the telescopic supporting leg in real time in the traveling process, so that the telescopic supporting leg is kept in a horizontal state; and locking a traveling cart after the portal crane travels in place, and starting a crane carriage which is arranged on a main beam for hoisting objects. The method has the advantages that the portal crane can be always in a horizontal state and a vertical state on the slope through adjustment of the hydraulic cylinder and a cross shaft; and moreover, a slope adjusting foundation can be prevented from being constructed or the height and weight of the slope adjusting foundation are greatly reduced, the construction is simplified, the cost is saved, and the construction progress is accelerated.
Description
technical field [0001] The invention belongs to the field of hoisting machinery, and in particular relates to a method for a gantry crane to travel and work on a ramp with a large angle. Background technique [0002] The gantry crane is a kind of deformation of the bridge crane, which is mainly used for loading and unloading operations of outdoor cargo yards, material yards, and bulk cargo. Its metal structure is like a door-shaped frame. Two outriggers are installed under the main beam, which can directly walk on the track on the ground. The two ends of the main beam can have outrigger cantilever beams. [0003] Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility, so they are widely used in port freight yards; at the same time, they are also widely used in construction sites for erecting beams and hoisting heavy equipment etc., but the existing gantry cranes are all designed to be used on a plane...
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): B66C5/00B66C7/00B66C9/00B66C13/16
Inventor 向科周迎选屠科技王志刚杨钱峰
Owner 中铁二十四局集团上海铁建工程有限公司