Automatic rock sample fixing device for indoor rock core drilling machine

Abstract

The invention relates to an automatic rock sample fixing device for an indoor rock core drilling machine.The device is composed of a clamping chamber and a driving system.A pair of V-shaped clamps, pressure sensors and screw rods are arranged in the clamping chamber.The driving system composed of the pair of screw rods, a gear and the clamping chamber is used for driving the two V-shaped clamps to move, and a rock sample to be processed is fixed and loosened; the inner side of each V-shaped clamp is provided with one pressure sensor, and the pressure sensors are used for sensing clamping pressure and controlling rock sample controlling pressure and adapt to various soft and hard rock samples.The automatic rock sample fixing device can be installed on the existing indoor rock core drilling machine, and has the advantages of being simple in structure, convenient to operate and applicable to automatically fixing various soft and hard rock samples.According to the automatic rock sample fixing device, experiment steps can be simplified, the rock core drilling survival rate is improved to a certain degree, rock core preparation time is effectively saved, and working efficiency is improved.

Description

Technical field: [0001] The invention belongs to the development field of rock mechanics test instruments, and particularly relates to an automatic fixing rock sample device for an indoor rock core taking machine, which is suitable for automatic clamping and fixing of various soft and hard rock samples. Background technique: [0002] The development of rock coring instruments is one of the hot issues in the field of rock mechanics experimental research. The preparation of rock samples is the basis of indoor rock mechanics experiments. In terms of rock sample preparation instruments, a set of indoor rock sample preparation instruments has been formed, mainly including rock cutting, rock coring, and end face grinding instruments. Among them, the rock coring instrument is a key part. Therefore, the testers have developed a series of core drilling rigs and formed a relatively mature rock coring technology. However, there is still a problem worth paying attention to: In terms of fixi...

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Problems solved by technology

[0003] The indoor rock coring machine is a key part of the rock sample preparation instrument, but the following problems are worthy of attention during the use of the existing coring machine: In the aspect of fixing the rock sample to be processed, it is usually fixed manually, and the operation is cumbersome , the efficiency is low, and the clamping force cannot be controlled at the same time. For some special weak rocks, excessive clamping force will destroy the rock to be processed

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