Material touch signal generator

Abstract

The invention discloses a material touch signal generator, comprising a measuring arbor wheel, an elastic arbor wheel, an upper guiding arbor wheel, a spring, a material touch bar, magnetic steel, a bracket, a material touch bar bracket, a steel rope, a lower guiding arbor wheel, and the like. One end of the steel rope is circled around a wire wheel or a wound roll through the upper guiding arborwheel and the measuring arbor wheel, and the other end is connected with a heavy bob at last through the elastic arbor wheel and the lower guiding arbor wheel. With the effect of the heavy bob, the material touch bar overcomes the acting force of the spring to move; when the front end of a material touch block is close to the material touch signal generator, the material touch signal generator sends material touch signal to a control unit; when the back end of the material touch block is close to a covered bob signal generator, the covered bob signal generator sends covered bob fault signal to the control unit. The generator has simple structure, integrated design and unitization use, and can be conveniently applied to various heavy bob detection type level gauging devices that can guarantee long-term, reliable and stable operation in very bad conditions.

Description

technical field [0001] The invention belongs to the field of automatic measurement, and in particular relates to a contact signal generator. Background technique [0002] At present, there are many kinds of devices and instruments used for silo material level measurement, with different precision and accuracy. Non-contact material level measuring instruments such as radar and ultrasonic can measure almost all media due to their own characteristics, and the operation It is simple, easy to debug, and has high measurement accuracy, but the measurement data is unreliable when used in high-temperature, high-density dust environments. With the improvement of automation level, the requirements for the accuracy, accuracy, reliability and stability of material level measurement are getting higher and higher. However, the existing heavy hammer detection type material level measuring device generally has the moment when the heavy hammer touches the material. Due to the loss of tension...

AI Technical Summary

Problems solved by technology

However, the existing heavy hammer detection type material level measuring device generally has the moment when the heavy hammer touches the material. Due to the loss of tension of the steel wire rope, the vibration will cause the steel wire rope to jump out of the groove, causing faults such as disordered rope, rope jamming, broken rope and hammer drop, which greatly reduces The reliability and stability of the work of the heavy hammer detection type material level measuring device

Although some heavy hammer detection type material level measuring devices have made some improvements to address these faults, the effect is not satisfactory, and the reliability and stability have not been well improved.

At present, there is no universal device that can be applied to various heavy hammer detection type material level measuring instruments, so that various heavy hammer detection type material level measurement instruments can work stably and reliably, and is also suitable for various harsh environments. environment of

Images