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System and method for monitoring perpendicularity of tower crane

A monitoring system, verticality technology, applied in the direction of cranes, load hanging components, transportation and packaging, etc., can solve the problems of verticality error, manufacturing and installation error, etc., to achieve convenient operation, prevent tipping accidents, good promotion and application value effect

Inactive Publication Date: 2015-04-29
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the tower crane is raised by adding standard sections to the upper part, there are usually manufacturing and installation errors in the added standard sections, so that the line connecting the center lines between the sections is actually a broken line. At this time, the vertical measured by this method There will be a large error

Method used

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  • System and method for monitoring perpendicularity of tower crane
  • System and method for monitoring perpendicularity of tower crane
  • System and method for monitoring perpendicularity of tower crane

Examples

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Embodiment Construction

[0021] Such as figure 1 As shown, a tower crane verticality monitoring system includes an inclination measuring device 1 installed on the slewing tower body 6;

[0022] The rotation angle measuring device 2 installed on the upper support 9 of the tower crane; the display alarm device 3 installed on the operation panel in the driver's cab 10 . The inclination measuring device is composed of an inclination sensor 11 , a cross fixing plate 12 and a fixing frame 13 . The inclination sensor 11 is fixed on the cross fixing plate 12 by 4 screws, and the cross fixing plate 12 and the fixing frame 13 are fixed on a main chord of the tower crane slewing tower body 6 by using 2 bolts and nuts. At this time, the contact surface of the inclination sensor 11 and the cross fixing plate 12 should be perpendicular to the measuring surface, and the inclination sensor 11 is fixed on the uppermost end of a main chord of the slewing tower body 6 (generally in the height plane of the root hinge po...

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Abstract

The invention relates to a system and a method for monitoring the perpendicularity of a tower crane. The system comprises a tilt angle measuring device arranged on a slewing tower body, a rotation angle measuring device arranged on an upper bracket of the tower crane, and a display alarm device arranged on an operation panel in a cab, wherein the rotation angle measuring device is provided with a pinion meshed with a slewing gear ring, and the tilt angle measuring device and the rotation angle measuring device are connected with the display alarm device through cables; data measured by the tilt angle measuring device and the rotation angle measuring device are input to the display alarm device through the cables, and the display alarm device is used for processing and storing the data and displaying the data in real time. According to the system and the method for monitoring the perpendicularity of the tower crane, provided by the invention, the perpendicularity of the tower crane can be quickly, accurately and automatically measured and is displayed in real time. Even if the centerline of the tower body is a fold line, the perpendicularity can also be accurately measured.

Description

technical field [0001] The invention discloses a tower crane verticality monitoring system and a monitoring method, belonging to the technical field of tower crane safety monitoring. Background technique [0002] The verticality of the tower crane refers to the maximum horizontal error of the actual centerline of the tower body on the measured height and the theoretical centerline in the measured plane when the tower crane is in a balanced state on the top of the tower after installation. The verticality of the tower crane is divided into lateral Perpendicularity deviation Δ X and Δ Y And the total perpendicularity deviation Δ. The verticality has a great influence on the jacking, lifting performance and overturning resistance of the tower crane. When the verticality error is greater than the allowable error, the tower crane is prone to collapse accidents due to its high center of gravity and large radius of gyration, causing huge economic losses to construction companies...

Claims

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Application Information

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IPC IPC(8): B66C23/88B66C23/94B66C13/16
CPCB66C13/16B66C23/88B66C23/94
Inventor 李力史可朝颜勇
Owner CHINA THREE GORGES UNIV
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