Testing machine for testing crane scale and method for disassembling and assembling weight thereof

Abstract

The invention discloses a testing machine for testing a crane scale and a method for disassembling and assembling a weight thereof. The testing machine for testing a crane scale comprises a position adjustment control device, a rack, a weight, a weight drive mechanism, a weight swing mechanism, a suspender and an anti-swing mechanism, wherein the weight swing mechanism comprises a weight swing mechanism shell, a motor No.3, a stop dog, a worm, a worm gear and a weight swing mechanism driving part, the worm and the weight swing mechanism driving part are installed in the weight swing mechanismshell and are in rotating connection, the worm gear is sleeved on the weight swing mechanism driving part and is fixedly connected with the weight swing mechanism driving part, and the worm and the worm gear are engaged with each other, the output shaft of the motor No.3 fixed on the weight swing mechanism shell is fixedly connected with the worm, the stop dog is installed in a through groove of the weight swing mechanism driving part, the weight swing mechanism is installed at the center of a middle cross beam of the rack, the weight swing mechanism driving part is sleeved on the suspender, and a through hole on the weight swing mechanism driving part is in clearance fit with the suspender. The invention also provides a method for disassembling and assembling the weight in the testing machine.

Description

technical field [0001] The invention relates to a verification test device for a crane scale and a pull-type dynamometer, which belongs to the technical field of measurement verification. More precisely, the invention relates to a crane scale verification test machine. Background technique [0002] Hanging scale (Hanginng scale) is a weighing instrument that makes an object in a suspended state to measure its mass or weight. When the load acts on the sensor through the hook, the elastic body of the sensor changes slightly, so that the resistance strain attached to the elastic body The resistance value of the meter changes, the balance of the bridge is changed, and the output voltage changes. The changed voltage signal is converted into a digital signal through a high-speed and high-precision A / D converter. The digital signal is passed through the collector, wireless transmitter ( or wired cable) to the secondary instrument, the secondary instrument will carry out data calibr...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems existing in the prior art that affect the measurement accuracy and the large error of the measurement results, and provide a crane scale verification testing machine

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