Automatic sampling apparatus of resistor type cereal on-line moisture tester

Abstract

The invention provides an automatic sampling device of an online resistance-typed corn moisture teller, which comprises a diversion case component 1, shaft sleeves 3 and 6, a rolling wheel component 4, a gear 5, a back cover component 7 and a back cover 9. The shaft sleeves 3 and 6 are respectively and firmly fixed with the diversion case component 1 and the back cover component 7 by combined bolts, a rotating shaft is transversely arranged between the shaft sleeves 3 and 6, the rolling wheel component 4 and the gear 5 are arranged on the rotating shaft and are transmission connected with each other through the rotating shaft, and a baffle 2 is arranged between the rolling wheel component 4 and the gear 5. A steel wire brush 8 is arranged under the rolling wheel component 4, and two ends of the steel wire brush 8 are respectively connected with the diversion case component 1 and the back cover component 7. A contact sheet component is arranged on the back cover component 7, a spring sheet is fixed on the top of the rotating shaft through a fixing block and a fixing plate, and an electric motor is arranged above the contact sheet component. The diversion case component 1 and the back cover component 7 adopt plate metal structure. The automatic sampling device is characterized by not only low cost but also high intensity. The online resistance-typed corn moisture measurement is widely applied to foreign high-performance corn driers, and due to a corn resistance and temperature measuring method and moisture conversion according to a certain mathematical model, the online resistance-typed corn moisture teller has the advantages of high precision, good stability and noninterference, is especially suitable for being used in online testing, and has good random repeatability, safety and reliability.

Description

[0001] Field [0002] The invention relates to an automatic sampling device for a resistance type grain online moisture analyzer. It is mainly used for automatic sampling and resistance value signal collection of resistive grain online moisture detector, for automatic sampling and resistance value signal collection of rice, wheat, beans, corn, rapeseed, and other granular grains and their seeds. The utility model belongs to the technical field of grain drying, storage and processing, and can greatly improve the stability and precision of automatic detection of grain moisture. Background technique [0003] At present, the existing grain online moisture analyzers at home and abroad can be divided into resistive, capacitive, infrared, microwave, neutron, high-frequency impedance, nuclear magnetic resonance, and acoustic according to different measurement principles. [0004] Grain moisture analyzers can generally be divided into two types according to their uses: manual portable...

AI Technical Summary

Problems solved by technology

The capacitance method has large errors and poor stability, and is rarely used in moisture control of high-performance grain dryers

[0006] However, the automatic sampling device of imported equipment generally adopts the integral structure such as die-casting aluminum, the design is complicated, the manufacturing process is very demanding, and the manufacturing cost is expensive.

One of the reasons why there is no domestically-made resistive grain online moisture analyzer in China is that the design and manufacture of the automatic sampling device is too difficult

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