Crane and superlift device thereof
A technology for super-lifting devices and cranes, which is applied in the direction of cranes, etc., and can solve the problems of space utilization of the mast and other problems such as the space utilization rate of the mast required by the torque balance of the slewing plane of the super-lifting device, and achieve the effect of convenient transportation, high space utilization rate, and good torque balance effect
Inactive Publication Date: 2013-01-16
SANY HEAVY IND CO LTD (CN)
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] In view of this, the present invention aims to propose a crane and its super-lifting device to solve the problem of the moment balance requirement of the slewing plane of the super-lifting device and the problem of the space utilization rate of the mast
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
[0027] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0028] Figure 1 to Figure 5 That is the relevant drawings of this embodiment, as shown in the figure, the super-lifting device of the crane described in this embodiment is installed between the upper connecting platform 7 and the turntable 9 of the crane, and the upper connecting platform 7 and the turntable 9 are respectively connected The upper and lower ends of the column 8 of the crane, the super-lifting device includes an upper cantilever 1, a lower cantilever 6 and a pull plate assembly connected between the two. The upper cantilever 1 is hinged on the upper connecting platform 7, and on the upper connecting platform 7 There is also a driving device for driving the upper boom 1 to rotate ...
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 crane and a superlift device thereof. The superlift device of the crane comprises upper cantilevers, lower cantilevers, and tensioning devices which are connected between the upper cantilevers and the lower cantilevers, wherein the upper cantilevers are hinged on an upper connecting platform of the crane; the lower cantilevers are connected to a turntable of the crane; and a driving device which is used for driving the upper cantilevers to rotate circumferentially around a vertical post of the crane is also arranged on the upper connecting platform. The upper cantilevers and the lower cantilevers of the superlift device can be circumferentially unfolded relative to the vertical post, so that the superlift device has a good moment balancing effect on rotary planes; the upper cantilevers can rotate circumferentially and are not fixed, so the space utilization rate is high; and the upper cantilevers can be folded and closed with the upper connecting platform, so that the transport is relatively convenient and quick.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to a crane and a super-lifting device thereof. Background technique [0002] At present, the super-lifting devices of large-tonnage cranes are mainly in the following structural forms: ordinary large-tonnage cranes are generally installed on the jib; special wind power cranes use a foldable pull plate to connect the upper end to the fixed mast, and the lower end to connect the rotatable cantilever. When the crane is working, the superlift device converts the bending moment borne by the boom into an axial force, thereby improving the lifting capacity of the crane. [0003] When the super-lifting device adopts the above-mentioned fixed mast, there are the following disadvantages: [0004] 1. Limited by the transportation width, the width of the mast is very limited, and it is difficult to meet the moment balance requirements of the slewing plane; [0005] 2. The fixed mast takes...
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 Applications(China)
IPC IPC(8): B66C23/62
Inventor 王振忠马胜尹乐龙
Owner SANY HEAVY IND CO LTD (CN)