Accessory device for array particle collision sensors

Abstract

The invention discloses an accessory device for array particle collision sensors. An impurity discharging mouth is formed in the tail of a combine harvester, a mounting rack is sequentially provided with a screen connecting bracket, a funnel connecting bracket, a sensor accessory mounting bracket and a sensor mounting bracket from top to bottom, and the bottom of the mounting rack is hinged to thebottom of the impurity discharging mouth; the angle of the mounting rack can be adjusted and fixed, the positions of a screen and a funnel relative to the impurity discharging mouth can be adjusted,and the sensor accessory mounting bracket is installed on the mounting rack; and the sensor accessory is adjustable, and is vertically corresponding to the outlet of the lower end of the funnel, the sensor mounting bracket is mounted on the mounting rack, and the array particle collision sensors are located directly below the sensor accessory. Through the accessory device, the angle, speed and position of material collision on the particle collision sensors can be adjusted, the problem of low recognition accuracy rate which is caused by random speed and angle of particle collision can be avoided, and meanwhile, occurrence of particle collision in a gap of detection units of the array particle collision sensors can be avoided, so that the detection accuracy of the particle collision sensorsis improved greatly.

Description

technical field [0001] The invention belongs to the field of combined harvester cleaning loss detection, and relates to an accessory device and a detection method for improving the detection accuracy of an array type particle collision sensor. Background technique [0002] Particle impact sensors are mainly used in agricultural harvesting machinery such as combine harvesters to detect grain loss during harvesting operations. The current grain loss detection method is as follows: arrange a particle collision sensor at the tail of the combine harvester, establish a mathematical model of the particle collision in the sensor detection range and the overall throwing range, detect the number of collision particles through the particle collision sensor, and then calculate the combine harvester through the mathematical model Overall cereal losses. The working part of the particle impact sensor is a piezoelectric detection unit, which can distinguish grains and other impurities acco...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the background technology, the object of the present invention is to improve the accuracy rate of the detection of the cleaning loss rate of the combine harvester, and propose a kind of accessory device which can sort out and adjust the direction and position of the particle collision sensor and an accessory device based on this accessory. The full-collection grain loss detection method and application solves the problem of inaccurate detection of the particle collision sensor caused by the random falling of the material particle speed and angle on the particle collision sensor, and also solves the problem of different detection units for the material particle falling to the particle collision sensor The problem of inaccurate detection due to interference collisions in gaps

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