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Lifting rope angle measurer for crane

A technology of angle measuring device and suspending rope, applied in measuring device, safety device, electric device, etc., can solve the problems of affecting the accuracy of swing angle measurement, affecting the life of spring arm, etc., and achieve automation improvement, high reliability and high precision Effect

Inactive Publication Date: 2003-08-20
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] This measuring device passes Figure 4 The block diagram shown constitutes the angle measurement system and forms an important part of the crane's control system. In the example, we have customized 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 total beam weight of 20.00 kg. The size of the trolley is a square of 0.30m x 0.30m and the weight is 10.00kg. The diameter of the sling is 0.02 meters, the longest time is 0.80 meters, the shortest time is 0.4 meters, and the weight of the heavy object is 10.00 kg. This measuring device is installed on the lower part of the trolley. One of the U-frames is parallel to the track, which is 0.20 meters long and 0.30 meters high. The other U-shaped frame is parallel to the beam, its length is 0.20 meters and its height is 0.25 meters. The inner width of the U-shaped frame is 0.03 meters. In this way, the two frames do not touch each other in space, and the weight is...

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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 general lifting equipment, in particular to the angle measurement of the hoisting rope of a crane. Background technique [0002] With the development of the national economy, various types of lifting equipment such as bridge cranes in workshops, portal cranes in docks, and tower cranes in construction sites (hereinafter collectively referred to as cranes) play 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, the swing amplitude (ie the swing angle) of the heavy object is required to be as small as possible during the entire transportation process and when it reaches the destination position. If the crane is not operated properly, it will cause heavy objects to swing. And if the swing is too large, the heavy object may collide with other equipment and cause damage. If the hanging object is liquid, the...

Claims

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Application Information

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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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