Sampling tube driving device used for grain sampling machine

Abstract

The invention relates to a sampling tube driving device used for a grain sampling machine. The sampling tube driving device comprises a first guiding and conveying unit and a second guiding and conveying unit arranged on a movable frame, the first guiding and conveying unit and the second guiding and conveying unit each comprise a driving gear and a driven gear, the driving gears are connected with the driven gears through conveying chains, ligatures of the driving gears and the driven gears are vertical, the driving gears and the driven gears are located on the two sides of a sampling tube to be clamped respectively, multiple clamping blocks are arranged on the outer sides of the conveying chains and arranged at intervals in the circumferential direction of the conveying chains, a clamping opening for clamping the sampling tube is formed in the region between a conveying belt of the first guiding and conveying unit and a conveying belt of the second guiding and conveying unit, and a driving mechanism drives the driving gears of the first guiding and conveying unit and the second guiding and conveying unit to rotate in opposite direction. The driving device can clamp the sampling tube with the smooth outer wall, and ensures that the sampling tube is lowered into a compartment of a truck for sampling and lifting.

Description

technical field [0001] The invention relates to the technical field of grain testing equipment, in particular to a sampling tube driving device used in a grain sampling machine. Background technique [0002] When the grain purchase station or the national grain depot purchases foreign grain, in order to ensure the quality of the grain purchase, before the grain is put into the warehouse, it is necessary to sample the grain in the truck compartment, specifically to obtain the dust content and water content of the grain. The quality of grain is also a must-test item for grain purchasing stations before purchasing grain. [0003] Grain samplers are also used in existing grain purchase stations or national grain depots. Most of the existing grain samplers are hand-held. into the truck compartment of the freight vehicle to complete the sampling operation of the grain in the truck. Sometimes the hand-held sampler in the prior art cannot reach into the deep position of the truck c...

AI Technical Summary

Problems solved by technology

[0003] Grain samplers are also used in existing grain purchase stations or national grain depots. Most of the existing grain samplers are hand-held. into the truck compartment of the freight vehicle to complete the sampling operation of the grain in the truck. Sometimes the hand-held sampler in the prior art cannot reach into the deep position of the truck compartment for sampling, resulting in deviations in sampling detection, and the hand-held When the sampler is sampling, the operator needs to climb up and down, and the sampling operation is extremely inconvenient

[0004] In order to solve the above-mentioned technical problems, the applicant applied on the same day to disclose a device for sampling and testing grain under the name "Grain Sampling Machine". Sampling tubes are vertically arranged on the mobile rack. Since the outer wall of the sampling tubes is smooth, when sampling grain, it is necessary to lower the sampling tubes into the compartment of the truck to realize sampling. , will bear relatively large resistance, how to conveniently realize the lowering and lifting of the sampling tube is really a technical problem for the designers who adopt it

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