FIELD: testing equipment.
SUBSTANCE: device for frozen soil testing with a ball stamp comprises a ball stamp, a support board, stands, a soil sample. The device is made of three mechanically and electrically interconnected parts: a mechanism of vertical loading, a mechanism of soil sample rotation, a unit to control ball motors and to convert signals from force sensors and to transfer into a digital form for communication with a computer via an interface. The mechanism of vertical loading has a step motor, a reducer and a force sensor for load measurement. The sample rotation mechanism comprises a rotary platform, a step motor, a geared wheel, a toothed belt and a geared disc. There are limit switches to limit motion of the ball stamp. Tests are performed automatically under computer control.
EFFECT: increased accuracy of load control and measurement of deformation in time, expanded range of examination and increased efficiency of testing.
5 cl, 5 dwg
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