Digitally displayed automatic adhesive force instrument

Abstract

The invention provides a digitally displayed automatic adhesive force instrument. The adhesive force instrument comprises a control part and a mechanical part, wherein a motor of the control part is fixed on a cross beam of a supporting framework; a rotating shaft of the motor is connected with one end of a steel wire; the steel wire hangs down after wrapping over a pulley fixed on the cross beam of the supporting framework along the cross beam of the supporting framework, and the other end of the steel wire is connected with one end of a steel wire joint connected with a drawing force sensor; the other end of the steel wire joint is connected with a preloading block through a soft drawn wire; a test sample box fixed on a test sample box base is arranged below the preloading block; the steel wire, the drawing force sensor, the preloading block and the test sample box are arranged on the same axial line; the motor is electrically connected with a control box body; and the drawing force sensor is electrically connected with the control box body. The digitally displayed automatic adhesive force instrument has the advantages that: due to the structure of the instrument, the test steps are reduced, the work of weighing steel balls is reduced, a loading rate and a stress on a test sample are uniform and test data acquisition is more stable and accurate, so that a test result is closer to a real value and the test efficiency is improved greatly; therefore, the digitally displayed automatic adhesive force instrument is applicable to adhesive force measurement of various soils.

Description

technical field [0001] The invention relates to a measuring instrument for harbor and navigation dredging engineering and the adhesion of various soils, in particular to an automatic adhesion instrument with digital display. Background technique [0002] Adhesion is an important technical index in port dredging engineering, which is measured by adhesion meter. The traditional adhesion tester is a manual mechanical instrument. During the test, on the one hand, the load is applied by manually adding iron sand as the load, or by manually shaking the wheel connected with the force-measuring spring. The test Due to the uneven loading rate, the sample is subjected to uneven force, which often disturbs the sample, and the test process is not easy to control; on the other hand, the test process is more complicated, and it is necessary to manually weigh the load or repeatedly calculate the load. These factors lead to The final test results have poor accuracy and the test takes a lon...

AI Technical Summary

Problems solved by technology

The traditional adhesion tester is a manual mechanical instrument. During the test, on the one hand, the load is applied by manually adding iron sand as the load, or by manually shaking the wheel connected with the force-measuring spring. The test Due to the uneven loading rate, the sample is subjected to uneven force, which often disturbs the sample, and the test process is not easy to control; on the other hand, the test process is more complicated, and it is necessary to manually weigh the load or repeatedly calculate the load. These factors lead to The accuracy of the final test result is poor, and the test takes a long time

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