Tower crane type grain sampler

Abstract

The invention provides a tower crane type grain sampler. The bottom of a stand column sleeve of a lifting stand column is fixed, a telescopic inner pipe stretches into the stand column sleeve from theupper end of the stand column sleeve, a cylinder body of a telescopic oil cylinder is fixed to the stand column sleeve, and a piston rod is fixed to the telescopic inner pipe. The rotating arm is arranged at the upper end of the telescopic inner pipe through the rotating mechanism, a bearing pedestal of the rotating mechanism is fixed to the upper end of the telescopic inner pipe, a rotating stand column is matched with a bearing of a bearing base, the rotating motor drives the rotating stand column to rotate through a bevel gear. A rack of the moving mechanism is fixed to the rotating arm, the advancing gear is installed on the frame and matched with the rack, and the gear motor drives the advancing gear. A cylinder body of a sampling rod oil cylinder of the sampling mechanism is fixed with the frame, a piston rod is fixed with a sampling rod, a cavity is formed in the sampling rod, a sampling hole is formed in the sampling rod, and the upper end of the cavity is communicated with anexternal negative pressure source. The lifting stand column drives the rotating arm and the sampling mechanism to ascend and descend, the rotating mechanism drives the rotating arm to be located above the transport cart, and the moving mechanism enables the sampling mechanism to reach a sampling point.

Description

technical field [0001] The invention relates to a grain cutting machine, in particular to a tower crane type grain cutting machine. Background technique [0002] At present, after purchasing all kinds of grains in China, it is usually necessary to pick them up for inspection during the storage process. Incoming grain transportation is mainly packaged transportation and bulk transportation. Packed grain is sampled with a bag probe, which can only pick up the surrounding area and the top, and cannot pick up the grain in the center of the compartment. The quality control depends on the on-site supervision and identification of the warehouse and unloading, which is time-consuming and laborious. For bulk grain sampling, only conventional bulk grain sampling devices can be used to manually climb to the top of the 2m-4m high truck to sample, which is very dangerous and inefficient. At the same time, it will directly contact grain, be polluted by dust, and cause personal injury. ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing cutting machine cannot flexibly adjust the position of the cutting rod according to the working environment, and can only be matched with the grain transportation vehicle, which causes inconvenience in cutting samples and affects the efficiency of cutting samples; and the existing cutting machine cannot be directly applied to the vehicle due to its small size. Packaged grain, bulk grain without cover transport vehicle

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