Real-time monitoring method of universal gantry and bridge crane main beam deflection

A real-time monitoring and crane technology, applied in the direction of load hanging components, transportation and packaging, safety devices, etc., can solve problems such as hidden safety hazards, high difficulty coefficient, and large deformation of main beams.

Inactive Publication Date: 2018-05-08
HUBEI UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The disturbance monitoring of the main girder of the crane is difficult because the degree of bending deformation of the main girder is small, and small changes may cause excessive deformation of the main girder and cause potential safety hazards, making monitoring accuracy and real-time monitoring particularly critical

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  • Real-time monitoring method of universal gantry and bridge crane main beam deflection
  • Real-time monitoring method of universal gantry and bridge crane main beam deflection
  • Real-time monitoring method of universal gantry and bridge crane main beam deflection

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Embodiment Construction

[0017] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0018] Such as figure 1 , figure 2 and image 3 As shown, the crane includes a main girder a, and the monitoring device includes a main pipe 11, a main pipe 12 and a main casing 2, and one end of the main pipe 11 is hinged with one end of the main beam a in the length direction, and the other end of the main pipe 11 is inserted into the Set and slidably connected in the main casing 2, one end of the main pipe 12 is hinged with the other end of the main beam a in the length direction, the other end of the main pipe 12 is inserted and slidably connected in the main casing 2, the main casing 2 There are several sub-sleeves 3 intercommunicating. The sub-sleeves 3 are perpendicular to the main casing 2. Each sub-sleeve 3 is ...

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Abstract

The invention provides a real-time monitoring method of the universal gantry and bridge crane main beam deflection. The real-time monitoring method comprises the following steps that the distances between second laser pickoffs and the axis of a main sleeve are measured, specifically, the sum of the separation distances between a laser emitter and laser receiving plates and the distances between the emission points of the laser receiving plates and the second laser pickoffs is detected to be am=hm+[L / (n+1)*m] through a laser received by the m second laser pickoff, and a value of the main beam deflection hm of the m second laser pickoff can be obtained; an inclination angle alpha of main beam bending deformation is obtained through the values of the main beam deflection of the secondlaser pickoffs, and the formula of the inclination angle alpha is alpha={arctan(h1 / X)+arctan(h2 / 2*X)+...+arctan(hm / m*X)} / m; and from this, it can be seen that the deflection of any position of a mainbeam can be obtained through estimation, and if the distance between the any position of the main beam and the laser emitter is F, the deflection of the position is (F*sin alpha). The real-time monitoring method has the advantage that the real time performance and the high accuracy are achieved.

Description

technical field [0001] The invention relates to a disturbance monitoring method, in particular to a real-time monitoring method for the disturbance of the main girder of a general portal bridge crane. Background technique [0002] The disturbance of the main girder of the crane is the main parameter of the bending of the main beam under load, and the change of the disturbance of the crane is related to the safety of the crane operation and construction. [0003] The disturbance monitoring of the main girder of the crane is difficult because the degree of bending deformation of the main girder is small, and small changes may cause excessive deformation of the main girder and cause potential safety hazards, making monitoring accuracy and real-time monitoring particularly critical . Contents of the invention [0004] The purpose of the present invention is to provide a real-time monitoring method for the disturbance of the main girder of a general portal bridge crane in view...

Claims

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Application Information

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IPC IPC(8): B66C13/16B66C15/06
CPCB66C13/16B66C15/065
Inventor 周国鹏金鹏徐碧玉丁登峰夏鑫刘晨
Owner HUBEI UNIV OF SCI & TECH
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