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Deflection drag-proof method for carriage hoisting operation

A trolley and anti-deviation technology, applied in cranes, optical devices, instruments, etc., can solve the problems of tower crane overturning, large overturning moment, etc., to prevent inclined pulling or inclined hanging, reduce the occurrence rate of accidents, and promote good promotion. The effect of applying value

Inactive Publication Date: 2009-05-13
何淑娟 +3
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the inclination angle of the wire rope for hoisting heavy objects is greater than a certain threshold, the overturning moment may be greater than the balance moment when the tower crane is hoisted or amplitude-changed, resulting in the tower crane tipping over

Method used

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  • Deflection drag-proof method for carriage hoisting operation
  • Deflection drag-proof method for carriage hoisting operation
  • Deflection drag-proof method for carriage hoisting operation

Examples

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Embodiment Construction

[0021] Embodiments of the present invention will be described in detail below.

[0022] A method for preventing partial pull for trolley lifting operations, applied to tower cranes, such as image 3 As shown, it is specifically: a camera 2 is set directly below the trolley 1 of the tower crane, a sign pole 3 is set directly below the camera 2, the center of mass of the sign pole 3 is O′, and the distance from the camera 2 to O′ is O′. A marker 4 with obvious color and texture features is fixed on the hook, which is easy to be captured and distinguished by the camera 2 .

[0023] combine figure 2 , image 3 , figure 2 The middle video acquisition module 201 is equivalent to image 3 Camera 2 in . The camera 2 is connected with an image processor 203, and the image processor 203 is electrically connected with a controller 204, and the image processor 203 is used to process the information collected by the camera 2 and calculate the required angle value; the controller 204...

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Abstract

The invention relates to a method for preventing oblique pulling in trolley lifting operation, in particular to a method for preventing oblique pulling by utilizing a machine vision method during the construction process of a tower crane. A camera and a marking pole are particularly fixed at the bottom part of a trolley of the tower crane; a marker is arranged on a hanging hook; the camera is connected with an image processor; the image processor is electrically connected with a controller; the camera collects marker information; the image processor is used for processing the marker information collected by the camera and calculating an oblique pulling angle of the marker; when the obliquely pulled angle is larger than a setting value, the controller gives an alarm and breaks a lifting and variable amplitude circuit. A method for preventing the oblique pulling in the field of tower cranes, which is provided by the invention, utilizes the technologies such as image collection, image processing, electronic circuit and the like to accurately measure the value of the oblique pulling angle, thereby greatly improving the phenomenon of the deficiency of preventing the oblique pulling in the field of the tower cranes, and greatly reducing accident rate.

Description

technical field [0001] The invention relates to a method for preventing partial pull for trolley hoisting operations, in particular to a method for preventing partial pull by using a machine vision method in the construction process of a tower crane. Background technique [0002] With the development of the construction industry in recent years, the number of large and high-rise buildings has increased, and the degree of mechanization of construction has also continued to increase. Due to its high lifting height, large lifting weight and wide working range, tower cranes are widely used in high-rise construction projects. [0003] But the tower crane belongs to high-altitude operation equipment, and it needs to start and stop continuously to complete the hoisting work during the working process, and in the working process, the phenomenon of crooked pulling and inclined lifting is common, which directly increases the overload limit and intensifies the tilting of the tower cran...

Claims

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Application Information

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IPC IPC(8): B66C23/88B66C23/26B66C13/16B66C13/18G01B11/26
Inventor 何淑娟王积永崔志先
Owner 何淑娟
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