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Lifting rope angle measurer for crane

A technology of angle measuring device and sling, which is applied to measuring devices, safety devices, electrical devices, etc., can solve problems such as affecting the life of spring arms and affecting the accuracy of swing angle measurement, and achieve automation improvement, high accuracy, and real-time processing performance. Good results

Inactive Publication Date: 2005-07-20
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Therefore, this structure will not only affect the life of the spring arm, but also directly affect the measurement accuracy of the swing angle

Method used

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  • Lifting rope angle measurer for crane
  • Lifting rope angle measurer for crane
  • Lifting rope angle measurer for crane

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Experimental program
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Embodiment

[0031] This measuring device passes Figure 4 The block diagram shown constitutes the angle measurement system and becomes an important part of the control system of the crane. In the embodiment, we have ordered a model crane with a height of 1.20 meters, a track length of 2.00 meters, a beam length of 1.00 meters, and a beam total weight of 20.00 kilograms. The size of the trolley is a square of 0.30 m x 0.30 m, and the weight is 10.00 kg. The diameter of the sling is 0.02 meters, the longest is 0.80 meters, the shortest is 0.4 meters, and the weight of the heavy object is 10.00 kilograms. The measuring device is installed at the lower part of the trolley. One of the U-shaped frames is parallel to the track and has a length of 0.20 meters and a height of 0.30 meters. Another U-shaped frame is parallel to the beam, its length is 0.20 meters, and its height is 0.25 meters. The internal width of the U-shaped frame is 0.03 meters. In this way, the two frames do not touch eac...

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Abstract

The lifting rope angle measurer for crane includes an angle sensor EX installed on the rotation shaft AX; a support shaft UX; a frame rotating around X axis and with slender rectangular bottom, one cantilever SX1 fixed on the rotation shaft AX and other cantilever SX2 around the support shaft UX; an other angle sensor EY installed on the other rotation shaft AY; an other support shaft UY; and an other frame rotating around Y axis and with slender rectangular bottom, one cantilever SY1 fixed on the rotation shaft AY and one other cantilever SY2 around the support shaft UY; with the lifting rope C being passed through the bottoms of the two said frames. The present invention has simple structure, low cost, good real-time processing preformance, high reliability and high precision; is suitable for both indoor use and outdoor use.

Description

technical field [0001] The invention relates to a general hoisting device, in particular to the angle measurement of a crane rope. Background technique [0002] With the development of the national economy, various types of lifting equipment such as bridge cranes in workshops, gantry cranes in wharves, and tower cranes in construction sites (hereinafter collectively referred to as cranes) are playing an increasingly important role. The function of the crane is to transport a heavy object from its initial position to the target position in a short time, and at the same time require the swing range (ie, swing angle) of the heavy object to be as small as possible during the entire handling process and when it reaches the target position. If the crane is not operated properly, it will cause the heavy object to swing. And if the swing is too large, the heavy object may hit other equipment and cause damage. If the suspended object is a liquid, the swing will cause the liquid to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/16B66C15/00B66C23/88G01B7/30
Inventor 易建强刘殿通
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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