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Dip angle collecting method for setting tipping warning line of tower crane, method for setting tipping warning line of tower crane and application

A collection method and warning line technology, applied in the direction of cranes, etc., can solve the problems of heavy workload, endangering the health and life safety of tower crane operators and related personnel, and high danger

Active Publication Date: 2014-04-30
SHANDONG FUYOU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large structure of the tower crane, the harsh working environment, the large workload, and the high center of gravity of the tower crane, the tower crane is more dangerous than other lifting equipment during work.
Once a tower crane overturning accident occurs, it will seriously endanger the health and life safety of the tower crane operators and related personnel, and even the innocent people around, and easily cause safety accidents.
At present, there is neither a tower crane body inclination angle data set specially used for tower crane tipping warning lines, nor a method and application for setting tower crane tipping warning lines

Method used

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  • Dip angle collecting method for setting tipping warning line of tower crane, method for setting tipping warning line of tower crane and application
  • Dip angle collecting method for setting tipping warning line of tower crane, method for setting tipping warning line of tower crane and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 shown.

[0039] The existing tower crane includes a jib and a tower body, a jib is arranged at the top of the tower body, and the tower body includes 4 main legs of the tower body; a tower crane tower is set. The three-dimensional coordinate system of the body, the origin O is the tower body of the tower crane

[0040] At the center point of the fixed section on the ground, the positive direction of the coordinate axis X is the north direction of the ground, the positive direction of the coordinate axis Y is the west direction of the ground, and the positive direction of the coordinate axis Z is the upward direction perpendicular to the ground; wherein, the inclination angle data of the tower body Including θx and θy, the θx is the angle between the tower body and the Z axis in the XZ plane, and the θy is the angle between the tower body and the Z axis in the YZ plane.

[0041] An inclination angle acquisition method for setting a warning line of a tower...

Embodiment 2

[0055] like figure 2 shown.

[0056] A method for setting the warning line for tower crane overturning by using the tower crane inclination angle collected by the method described in Embodiment 1, and establishing a two-dimensional coordinate system of the tower crane tower body inclination angle, with the tower body in the XZ plane and the Z axis. The included angle θx is the abscissa, and the included angle θy between the tower body in the YZ plane and the Z axis is the ordinate; the inclination angle data of the 8 groups of tower bodies collected above are drawn in the form of point coordinates on the In the coordinate system of the inclination angle of the tower body of the tower crane; in the above-mentioned coordinate system of the inclination angle of the tower body of the tower crane, the envelope of the coordinates of the 8 points is drawn according to the prior art, and the envelope is The inclination safety area of ​​the tower body when the tower body is working n...

Embodiment 3

[0058] The method for setting a tower crane tipping warning line as described in Embodiment 2 is different in that the envelope is a rectangle, and the drawing process is as follows:

[0059] (1) In the two-dimensional coordinate system of the inclination angle of the tower body of the tower crane, draw the left side of the rectangle with the minimum value of the abscissa θx in the 8 coordinate points and perpendicular to the abscissa; the abscissa θx of the 8 coordinate points is the largest value point, and draw the right side of the rectangle perpendicular to the abscissa; pass the minimum point of the ordinate θy among the 8 coordinate points, and draw the lower side of the rectangle perpendicular to the ordinate; pass the maximum point of the ordinate θy among the 8 coordinate points, and Draw the upper edge of the rectangle perpendicular to the ordinate;

[0060] (2) Multiply the rectangle drawn in step (1) by the coefficient K to expand it. The value range of the coeffi...

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Abstract

The invention relates to a tipping angle collecting method for setting a tipping warning line of a tower crane. The method comprises the following steps of respectively collecting dip angle data of a tower crane body corresponding to multiple positions in one rotating circle of a cargo boom when the tower crane is in rated-load state and no-load state. The invention relates to a method for setting a tipping warning line of the tower crane by utilizing the method to collect the tipping angle of the tower crane. The method comprises the following steps of drawing an enveloping line of point coordinates according to the existing technology, wherein the area in the enveloping line is the tipping safety area of the tower crane body when the tower crane body is in work, and the enveloping line is the tipping warning line of the tower crane. The tipping warning line of the tower crane already contains the safety working area of the tower crane in the working state, so that the tower crane cannot exceed the warning line under the normal situation; when an abnormal situation occurs, the tower crane exceeds the tipping warning line when the cargo boom does not rotate to a position right above a main limb of the tower crane body, so that the alarming condition includes but is not limited to the situation that the dipping angle of one limb exceeds the range or the dipping angle on four main limbs exceeds the range.

Description

technical field [0001] The patent of the present invention relates to an inclination angle acquisition method for setting a tower crane tipping warning line, a method and application for setting a tower crane tipping warning line, and belongs to the technical field of hoisting machinery safety. technical background [0002] Tower crane is one of the important construction machinery used in modern industry and civil engineering. Because of its high lifting height, large lifting weight and wide working range, it has been widely used in high-rise construction projects. Due to the huge structure of the tower crane, the harsh working environment, the large workload, and the high center of gravity of the tower crane, the tower crane is more dangerous than other lifting equipment during operation. Once a tower crane overturns accident, it will seriously endanger the health and safety of the tower crane operator and related personnel and even the innocent people around, and it is ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/88
Inventor 宋世军李楠楠刘健康乔彩风王通
Owner SHANDONG FUYOU TECH CO LTD
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