Anti-excessive-tipping early warning method for tower crane and anti-excessive-tipping early warning device for tower crane
A technology of tower cranes and early warning devices, applied to cranes and other directions, can solve the problems of complete machine tipping, many uncertain factors, and irreversible damage to the whole machine, so as to avoid tipping and improve safety
Active Publication Date: 2014-07-23
WUHAN YIDA CONSTR MACHINERY
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Problems solved by technology
Although in the design process of the tower crane, the force under different working conditions has been calculated, and the disassembly process will be carried out according to the regulations, but due to the different operating environments and the influence of the local environment, many dismantling tower cranes , The actual working conditions during the period of the vertical tower cannot be completely consistent with the calculation results at the time of design; moreover, there are many uncertain factors in the disassembly process, it is difficult to manually observe whether the whole machine is tilted, and when problems are found, the whole machine The machine has already produced the risk of irreversible damage; the moment limiter set on the tower crane only ensures that the lifting moment of the tower crane does not exceed the design value during operation, but does not take into account the uncertain factors on the construction site (such as wind speed, installation error, etc.) taking into account, the whole machine still has the risk of overturning
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[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0024] like Figure 1 to Figure 5 As shown, according to an embodiment of the present invention, a tower crane anti-over-tilting early warning device applied to a tower crane is provided. see in conjunction figure 1 , the tower crane includes a boom 1, a trolley 2, a hook 21, a balance arm 3 and a tower body 4, wherein the tower body 4 is vertically arranged, and the tower body 4 includes a plurality of standard sections 41 stacked up and down, each The standard section 41 includes four main chords 411, and the four main chords 411 are connected by transverse webs and oblique webs 413. In order to ensure the stability of the tower body 4, one of the standard sections 41 is connected with an a...
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The invention provides an anti-excessive-tipping early warning method for a tower crane and an anti-excessive-tipping early warning device for the tower crane. The anti-excessive-tipping early warning method for the tower crane comprises the following steps: detecting the magnitude of stress on a main chord (411) of a standard joint (41) of a tower body (4), and generating a detection result; comparing the detection result with a preset value, and judging whether the detection result is greater than the preset value or not; if the detection result is greater than the preset value, transmitting a warning signal; giving out warning according to the warning signal. By adopting the technical scheme of the invention, tipping of the tower crane can be detected in time, warning is given to a driver in time, and tipping of the entire tower crane is prevented effectively.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to a tower crane anti-over-tilt early warning method and a tower crane anti-over-tilt early warning device. Background technique [0002] Existing tower cranes are transported to the construction site in parts and then assembled on the construction site. In the process of dismantling and erecting the tower, it is necessary to manually observe whether the tower body is tilted, and whether there is a danger of the whole machine tipping over. Although in the design process of the tower crane, the force under different working conditions has been calculated, and the disassembly process will be carried out according to the regulations, but due to the different operating environments and the influence of the local environment, many dismantling tower cranes , The actual working conditions during the period of the vertical tower cannot be completely consistent with the calculation resu...
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IPC IPC(8): B66C23/88
Inventor 颜瑶李桂芳
Owner WUHAN YIDA CONSTR MACHINERY
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