Lifting and slewing cycle number detecting system and method for automobile crane boom
A truck crane, cycle times technology, applied in the direction of load hanging components, transportation and packaging, can solve the problems of test stagnation, high labor intensity, increased operator risk, etc., to improve accuracy and efficiency, reduce work intensity, The effect of good economic benefits
Inactive Publication Date: 2013-07-10
CHINA AGRI UNIV
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Problems solved by technology
[0002] Crane booms (divided into basic booms, medium-long booms, longest main booms and auxiliary booms according to the characteristics of use, collectively referred to as booms for the convenience of description) the number of lifting and slewing cycles is currently determined by the National Construction Machinery Quality Supervision and Inspection Center As there is no corresponding detection system for monitoring and recording by testing personnel, manual methods can only be used
However, in the case of thousands of tests and dozens of days of work, the manual detection method is labor-intensive, tedious, and prone to fatigue, and the fatigue of the testers will affect the sobriety of the brain and hinder their ability to understand The determination of the number of cycles affects the accuracy and efficiency of the reliability test
[0003] Cranes are generally equipped with a height limit device. The maximum height for lifting heavy objects is when the cable hammer hits the height limit switch at the front of the boom. However, in the reliability test, this situation will bring short-term The stagnation affects the continuity of the test and increases the risk of the operator; in the process of boom rotation, because there is no reference, the crane operator mainly relies on his own experience to complete, and each cycle lacks consistency
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[0036] figure 1 It is a schematic diagram of the overall system scheme of the present invention, mainly composed of a heavy object lifting height detection device 1 (by figure 2 The wireless module A1-1 and the wireless module B1-2 in the composition), the relay module 2, the processing unit 3, the detection device 6 for the 180° rotation times of the boom (by image 3 Hall proximity switch 6-1, magnet 6-2, Hall proximity switch 6-3, signal conditioning circuit 6-4 and counter 6-5, etc.), data transparent transmission slave module 5 and master module 4.
[0037] figure 2 It is a schematic diagram of the device for detecting the lifting height of the heavy object in this embodiment. The main working principle is that the wireless module A1-1 receives the instruction sent by the processing unit 3 through the relay module 2, measures the distance of the wireless module B1-2, and lifts the heavy object. The detection of the elevation is transformed into the distance measuremen...
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The invention discloses a lifting and slewing cycle index detecting system and method for an automobile crane boom, relating to the technical field of operation reliability detection of automobile cranes. The system comprises a weight lifting height detecting device adopting a wireless detecting mode, a relay module used for erecting a wireless data transmission bridge between the weight lifting height detecting device and a processing unit, a boom 180-degree left-and-right slewing number detecting device used for transmitting the time to the processing unit in a wireless manner, main and auxiliary wireless unvarnished data transmission modules used for creating a transmission channel, a merging data processing unit and a display unit. The detecting method comprises the steps that: the processing unit automatically judges the lifting and slewing cycle time of the boom according to the heavy lifting height and the 180-degree left-and-right slewing number of the boom. The detecting system and method disclosed by the invention are used for automatically detecting the lifting and slewing cycle number of the boom, thereby replacing the manual monitoring and recording manner, reducing the working strength of an inspector, improving the accuracy and the efficiency of reliable tests and reinforcing the safety of a crane operator and the slewing uniformity for each time.
Description
technical field [0001] The invention relates to a system and method for detecting the number of lifting and slewing cycles of a boom of a truck crane, and belongs to the detection technical field of the operation reliability test of a truck crane. Background technique [0002] Crane booms (divided into basic booms, medium-long booms, longest main booms and auxiliary booms according to the characteristics of use, collectively referred to as booms for the convenience of description) the number of lifting and slewing cycles is currently determined by the National Construction Machinery Quality Supervision and Inspection Center As there is no corresponding detection system for monitoring and recording by testing personnel, manual methods can only be used. However, in the case of thousands of tests and dozens of days of work, the manual detection method is labor-intensive, tedious, and prone to fatigue, and the fatigue of the testers will affect the sobriety of the brain and hind...
Claims
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Inventor 王书茂付函陈度王新王玲丁德伟
Owner CHINA AGRI UNIV