Screening machine screening strength real-time detection and analysis system

A real-time detection and analysis system technology, applied in the direction of material analysis, permeability/surface area analysis, machine/structural component testing, etc., can solve the problems of inability to detect sieving force in real time, lack of sieving force, adjustment, etc., to achieve convenience The effect of sieving force detection

Pending Publication Date: 2021-02-05

INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI

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AI-Extracted Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a real-time detection and analysis system for the sieving force of a sieving machine, which has the advantages of adding a sieving force detection device to detect the sieving force in real time, and can adjust the sieving force in time according ...

Abstract

The invention discloses a screening machine screening strength real-time detection and analysis system, which comprises a vibration measurement sensor, a measurement circuit, a vibration analyzer anda display recorder; and the vibration measurement sensor is fixed on a fixed bracket of a screening machine, and a feeler lever on the vibration measurement sensor is consistent with the vibration direction of a tested screen; and the feeler lever is in contact with the surface of the tested screen by means of the elastic force of the spring, and when the tested screen vibrates, the feeler lever moves along with the tested screen. A connecting wire of the vibration measurement sensor is connected into the measuring circuit, is connected to the vibration analyzer through a measuring circuit leading-out wire and then is connected to the display recorder through a vibration analyzer leading-out wire. The system has the advantages that the screening strength detection device is additionally arranged, the screening strength is detected in real time, and the screening strength can be adjusted in time according to the screened material condition.

Application Domain

Subsonic/sonic/ultrasonic wave measurementUsing electrical means +2

Technology Topic

EngineeringElectrical and Electronics engineering +2

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Examples

Experimental program(4)

Example Embodiment

[0023]Example 1

[0024]Seefigure 1, An embodiment provided by the present invention: a real-time detection and analysis system for the screening force of a sieving machine, comprising a vibration measuring sensor, a measuring circuit, a vibration analyzer, and a display recorder. The vibration measuring sensor is fixed on a stationary support of the sieving machine , The contact rod on the vibration sensor is in the same direction as the screen under test, and contacts the surface of the screen under test by the elastic force of the spring. When the screen under test vibrates, the contact rod moves with the screen under test. . The connecting wire of the vibration measuring sensor is connected to the measuring circuit, the lead wire of the measuring circuit is connected to the vibration analyzer, and the lead wire of the vibration analyzer is connected to the display recorder. The measuring circuit, the vibration analyzer and the display recorder form a strength detection system, and the vibration sensor is used as a real-time detection device.

Example Embodiment

[0025]Example 2

[0026]An embodiment provided by the present invention: a real-time detection and analysis system for the screening force of a sieving machine, a piezoelectric acceleration sensor: the mass in the sensor is displaced relative to the housing, and the first conversion: input acceleration-relative displacement; The elastic force generated by the displacement is added to the piezoelectric element, and charges of opposite polarity are generated on the two end faces of the piezoelectric element. The second conversion: relative displacement-charge.

[0027]The sensor is calibrated by the relative method: the bolt installation method uses a drilled thread to connect the piezoelectric acceleration sensor and the device. During testing and debugging, the sensor is connected by bolts, with the screen under test in the middle. Compare the two sensors Output, sensitivity at this frequency point.

[0028]The calibration work is carried out on a vibration-isolated base, measuring the absolute vibration of the base of the shaker, and at the same time measuring the relative vibration of the table facing the base.

Example Embodiment

[0029]Example 3

[0030]An embodiment provided by the present invention: a real-time detection and analysis system for the screening force of a screening machine, and the installation process:

[0031]S1. The vibration measuring sensor adopts a piezoelectric acceleration sensor. The vibration measuring sensor is fixed on the stationary support of the screening machine. The contact rod on the vibration measuring sensor is consistent with the vibration direction of the screen under test. Test the surface contact of the screen;

[0032]S2. The measuring circuit takes the integrated circuit board as the carrier, the whole measuring circuit is installed in the junction box, the junction box is fixed on the screening machine, and the connection end of the measuring circuit is connected to the vibration sensor through the wire;

[0033]S3. Vibration analyzer and display recorder are installed in the monitoring room. The access end of the vibration analyzer is electrically connected to the export end of the measurement circuit through a wire, and the export end of the vibration analyzer is electrically connected to the access end of the display recorder through a wire. , Vibration analyzer and display recorder are respectively connected to power supply;

[0034]S4. After the line is connected, it is powered on for testing, and the electric vibration exciter is used to provide excitation to the equipment and provide a transient excitation signal. The coil in the electric vibration exciter passes alternating current, and the coil will receive the action of electromotive force proportional to the current. This force is transmitted to the screen under test through the ejector rod, and the test system is put into use after it is normal.

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Description & Claims & Application Information

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