Grain yield measuring device and method

Abstract

The invention relates to a grain yield measuring device and method. The grain yield measuring device comprises a weight and a measuring hopper which are slidably connected to the two sides of a gear set through a chain. A grain inlet is formed in the top of the measuring hopper, and a second electromagnetic valve is arranged at a grain outlet in the bottom of the measuring hopper; the gear set comprises two gears, a counter and a signal receiver are arranged between the two gears, and a firing pin is arranged on the chain and located between the two gears. When the total weight of grains entering the measuring hopper and the measuring hopper is larger than the weight, the chain drives the firing pin to strike the counter and the signal receiver, meanwhile, grain feeding is stopped, and the second electromagnetic valve is opened. The grain yield measuring device provided by the invention has the characteristics of simple structure principle, low technical cost, simplicity in calibration, stability, reliability, no influence of crop species and the like, reduces the influence of grain moisture, variety and crop species, and reduces the influence of machine vibration and gradient.

Description

Technical field [0001] The present invention relates to the field of agricultural technology, and Background technique [0002] At present, the application of production technology in the cereal combined harvester is not mature, mainly using improving, weighing, volumetric, capacitive, photovoltaic, ray, etc., the total amount of food, the total amount of food is measured, and there is a calibration. Error, water content and density errors, uniformity errors, sensor errors, machine vibration errors. There are many defects in the presence of a wide range of weighing sensors. First, multiple parking calibrations, blocks, and crop type varieties are required, and it is necessary to have multiple parking calibration, actual operation difficult; The accuracy of the weighing sensor will accumulate the error of the weighing sensor; the third is that the grain density changes cannot be calibrated. Inventive content [0003] The technical problem to be solved by the present invention is ...

AI Technical Summary

Problems solved by technology

[0002] At present, the application of yield measurement technology in grain combine harvesters in China is not mature. Impulse type, weighing type, volumetric type, capacitive type, photoelectric type, ray type and other methods are mainly used to measure and monitor the total amount of grain entering the warehouse, all of which have calibration Errors, grain moisture content and density errors, uneven flow errors, sensor errors, machine vibration errors, etc.

There are many defects in the widely used method of static weighing calibration of load cells. First, multiple parking calibrations are required. The accuracy of the load cell will accumulate the error of the load cell; the third is that it cannot be calibrated independently when the grain density changes

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