Grain flow detection experimental platform

Abstract

The invention belongs to the field of agricultural intelligent equipment and particularly relates to a grain flow detection experimental platform, comprising a base frame, and a feeding mechanism, a lifting mechanism, a weighing mechanism and a power mechanism which are mounted respectively on the base frame, wherein the weighing mechanism is arranged at the top of the base frame, and the feeding mechanism is arranged below the weighing mechanism; grains are stored in a storage box; the power mechanism is started so that the lifting mechanism reaches rated operating speed, a valve plate at the bottom of the storage box in the feeding mechanism is opened to allow the grains to flow into the lifting mechanism under the gravity action, the grains are then cast out via the lifting mechanism, and the grains impact on a grain flow sensor and bounce into the weighing mechanism; a retaining plate at the bottom of a weighing box in the weighing mechanism is opened, and the grains return into the storage box under the gravity action. The grains can be circulated in the experimental platform, so that manual loading and unloading of grains are omitted; the experimental platform also has overload protection function, and it is guaranteed that other transmission parts are not damaged.

Description

technical field [0001] The invention belongs to the field of agricultural intelligent equipment, in particular to an experimental platform for grain flow detection. Background technique [0002] In precision agriculture, the grain flow sensor is one of the important components of the yield measurement system. There are mainly four types of grain flow sensors currently in use: namely, impulse flow sensors, ray flow sensors, photoelectric flow sensors, and volumetric flow sensors. In terms of safety and accuracy, impulse flow sensors are more suitable for application in field production measurement systems. Most of the commercial production measurement systems in Europe, America and other countries use impulse flow sensors. Affected by climate and conditions, it is difficult to design and develop impulse flow sensors on harvesters. When designing the impulse flow sensor, a special experimental platform is built at home and abroad, and the development process of the sensor is...

AI Technical Summary

Problems solved by technology

However, the developed experimental platform for grain flow detection has low measurement accuracy and is not suitable for the structural characteristics of the net volume lifter of large combine harvesters in my country.

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