Highway engineering drill core sampling device

Abstract

The invention discloses a highway engineering drilling core sampling device. The device comprises a machine frame, a driving mechanism which is installed on the machine frame and used for providing power, a lifting mechanism which is driven by the driving mechanism and vertically ascends and descends on the inner side of the machine frame, a sampling mechanism which is used for core drilling sampling, a sample storage mechanism which is used for storing samples taken out by the sampling mechanism, and a switching structure which is used for driving a rotary disc of the storage sampling mechanisms to rotate. According to the invention, core drilling sampling is carried out through the sampling mechanism, the sample storage mechanism automatically collects samples ejected by an ejector rod after sampling, the switching mechanism drives the rotary disc to rotate, the next no-load sample sampling barrel rotates to a bearing position, the functions of automatic continuous core drilling sampling and sample collection are achieved, operation is easy, complex operation of manual sampling is avoided, and the sample accuracy is ensured.

Description

technical field [0001] The invention relates to the technical field of road engineering detection and sampling, in particular to a road engineering core sampling device. Background technique [0002] The existing subgrade compaction detection device for road engineering inspection uses the end of the motor rotor shaft to connect the end of the drill sleeve as a whole, and the lower end surface of the drill sleeve is provided with a saw cut in the ring. When the motor is powered on, it drives the drill sleeve to rotate, and the The lower port of the drill sleeve is against the compacted roadbed, and the drill sleeve is quickly drilled into the roadbed under the high-speed rotation of the saw kerf. After drilling to a certain depth, the motor is pulled upwards, so that the drill sleeve is pulled out along with the subgrade soil layer inserted inside. Drill the hole, take out the subgrade soil layer from the drill sleeve, and then take out the subgrade soil layer in the drill s...

AI Technical Summary

Problems solved by technology

[0003] In the existing method, manual operation is required to control the drilling depth, and certain experience is required, which is prone to operational errors, resulting in unqualified drilled samples, especially for novices, mistakes are more common; in addition, taking out samples by knocking is not only time-consuming It is laborious and easy to damage the subgrade soil sample to be tested in the drill sleeve, which affects the test accuracy

After the samples are taken out, they need to be transferred to the next sampling point to continue the subgrade sampling. The existing equipment does not have the function of storing samples, and it is necessary to manually take out the samples one by one. The operation is cumbersome and the samples are easily damaged.

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