Automatic detection test device and method for static friction coefficient of crop grains

Abstract

The invention relates to a crop grain static friction coefficient automatic detection test device and method, and the device comprises a test bench which comprises a pedestal and a test platform, and a tested material and tested crop grains are disposed on the test platform; the driving mechanism comprises a direct-current brushless motor and a speed reducer, the direct-current brushless motor is installed at the rear end of the base, and the speed reducer is connected with the direct-current brushless motor; the transmission mechanism comprises a synchronous belt transmission mechanism and an optical axis, the optical axis is installed at the front end of the base and connected with the speed reducer through the synchronous belt transmission mechanism, and the test platform is connected with the optical axis through a half-split type fixing shaft ring; the control device comprises a controller, a single-ring absolute value encoder, a correlation type laser sensor, a motor driver and a limiting mechanism, the single-ring absolute value encoder is installed at one end of the optical axis, the correlation type laser sensor is installed on the test platform, the motor driver is connected with the direct-current brushless motor, and the limiting mechanism is installed on the base and connected with the optical axis. The invention also provides an automatic detection test method of the device.

Description

technical field [0001] The invention relates to an agricultural material mechanical characteristic detection device, in particular to an automatic detection test device and method for the static friction coefficient of crop grains. Background technique [0002] Precise sowing of corn, soybeans and other crops is one of the important development directions of modern agricultural machinery. To obtain the coefficient of static friction between crop grains and other materials. [0003] The slope method is a test method commonly used in the prior art to measure the static friction coefficient of agricultural materials. In the prior art, the Chinese invention patent with the publication number of CN107421883A discloses a static friction coefficient measuring device and a measuring method, wherein the measuring device includes a rotating plate, a fixed plate, a rotating shaft, an angular displacement sensor, a material plate and a balance block. The fixed plate is located below t...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide an automatic detection test device and method for the coefficient of static friction of crop grains in view of the above-mentioned defects of the prior art, so as to overcome the interference of human factors, low measurement accuracy and low automation level in the static friction measurement test. And other issues

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