Automatic screening and weighing soil engineering screening device

Abstract

The invention discloses an automatic screening and weighing geotechnical screening device, which includes a sieve drum, and is characterized in that: a plurality of sieve discs are arranged inside the sieve drum, and a rotating device is arranged under each sieve disc, and the rotating device The device and the sieve tray are connected up and down correspondingly through plugs. A pressure sensor is provided between the sieve tray and the rotating device, and the pressure sensor is electrically connected to the display. The outer wall of the sieve cylinder is provided with a locking device. The tightening device is controlled to connect the rotating pull rod, the rotating rod is flexibly connected with the rotating device, the lower end of the screen cylinder is connected to the sand outlet cylinder, and the outside of the sand outlet cylinder is connected to the bracket. There is a driving shaft, and the driving shaft passes through the bottom plate of the sand outlet cylinder and is fixedly connected with the rotating device. The device has the advantages of simple structure, convenient operation, reduced operation steps, and improved test accuracy.

Description

technical field [0001] The invention relates to the technical field of screening test tools, in particular to an automatic screening and weighing geotechnical screening device. Background technique [0002] Civil engineering experiments often require plotting particle grading curves to understand soil properties. To draw the particle grading curve, the particles need to be sieved, and after the sieving test, the particle content of each particle size needs to be weighed. The common method is to stack geosieves with different apertures up and down, and pour the test particles into the top layer. Inside the geosieve, vibrate the geosieve. After shaking, the remaining particles of geosieves with different sieve holes were poured into the balance tray for weighing, and the data was recorded to understand the content of particles of different particle sizes for subsequent analysis. The ordinary geosieve is used for vibration and then the particles are poured into the balance fo...

AI Technical Summary

Problems solved by technology

The ordinary geosieve is used for vibration and then the particles are poured into the balance for weighing. The intermediate process is cumbersome and inconvenient to operate, which affects the test process. Manual sand sieving is time-consuming and laborious. At the same time, test particles are often spilled due to operational errors, resulting in test errors.

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