Grain sampling machine

Abstract

The invention relates to a grain sampling machine. The grain sampling machine comprises a cantilever rack arranged at the upper end of an upright column, wherein the cantilever rack is driven by a rotating mechanism to rotate around the upright column, a moving rack is arranged on the cantilever rack, a first feed guiding unit and a second feed guiding unit are arranged on the moving rack, each of the first feed guiding unit and the second feed guiding unit comprises a rotating shaft extending out of the moving rack, a driving wheel is arranged on the rotating shaft, a transmission chain is arranged on the two driving wheels and is further connected with a motor, a tension wheel is arranged on the moving rack and matched with the transmission chain, a detection wheel is further arranged between the tension wheel and the motor, is in abutting fit with the back surface of the transmission chain and is arranged on a stretching and retracting support, the stretching and retracting support is arranged on the moving rack and stretches and retracts horizontally, a proximity switch is arranged on a stretching and retracting path of the stretching and retracting support and is used for controlling power on and power off of the motor, the motor is powered off by the proximity switch, so that the phenomenon that a sampling tube is bent and scrapped or the phenomenon that the motor cannot rotate and is burnt due to overheat is avoided, and a driving mechanism and the sampling tube are protected.

Description

Technical field [0001] The invention relates to the technical field of grain detection equipment, in particular to a grain sampling machine. Background technique [0002] When the grain purchase station purchases foreign grain, in order to ensure the quality of the grain, it is necessary to sample the grain in the truck compartment before the grain is stored. Specifically, the dust content and moisture content of the grain can be obtained to know the quality of the grain. This is also the inspection item that the grain purchasing station must do before purchasing the grain. [0003] Existing grain acquisition stations also use grain samplers. The existing grain samplers are mostly hand-held structures. When the freight vehicle enters the area to be inspected in the grain acquisition station, the inspectors pass into the freight vehicle through the handheld sampler. In the body of the truck, the sampling operation of the grain in the truck is completed. The hand-held sampler in the...

AI Technical Summary

Problems solved by technology

[0003] Grain samplers are also used in existing grain purchase stations. Most of the existing grain samplers are hand-held structures. to complete the sampling operation of the grain in the truck. The hand-held sampler in the prior art sometimes cannot be inserted into the deep position of the truck compartment for sampling, resulting in deviations in sampling detection, and when the hand-held sampler samples , the operator needs to climb up and down, and the sampling operation is extremely inconvenient

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