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Multifunctional joint sampling instrument for undisturbed soil

An undisturbed, multi-functional technology, applied in the direction of manufacturing tools, test sample preparation, ceramic molding machines, etc., to achieve the effect of reducing disturbance, good human-machine exchange interface, and good technical performance

Inactive Publication Date: 2012-02-29
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of adopting microcontroller control to be able to prepare various samples such as soft soil, hard soil, solid, hollow sample, can realize The undisturbed soil multi-functional joint sample preparation instrument for large-scale production can completely solve the problems of single function and automatic demoulding of the undisturbed soil sample preparation process, and the sample preparation is convenient, efficient, low cost and good performance

Method used

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  • Multifunctional joint sampling instrument for undisturbed soil
  • Multifunctional joint sampling instrument for undisturbed soil
  • Multifunctional joint sampling instrument for undisturbed soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: The overall structure of the undisturbed soil multifunctional joint sample preparation instrument of the present invention is as follows figure 1 As shown, it includes a hydraulic system, a sample preparation mold, a pressurization conversion device, a motor power system and a controller. The hydraulic system is composed of a fuel tank 1, a hydraulic pipeline 2, an overflow valve 3, an electromagnetic throttle valve A4, and an electromagnetic valve. Flow valve B41, four two-position three-way solenoid valves, hydraulic pump 9, accumulator 10, pressure relay 11, hydraulic gauge 12 and double hydraulic cylinders, and the oil tank is connected with overflow valve and energy storage through hydraulic pipeline 2 The oil tank is also connected with the upper hydraulic cylinder 13 through the electromagnetic valve B6 through the two-way hydraulic pipeline, and connected with the lower hydraulic cylinder 15 through the electromagnetic valve D8; the oil tank is als...

Embodiment 2

[0051] Embodiment 2: The apparatus at the lower end of the mold of the combined sample preparation instrument in Embodiment 1 of the present invention is replaced with a drill bit; for making a solid sample of hard soil, the motor must be turned on during the sample preparation process, and the motor provides forward and reverse torque. The transmission effect realizes the rotation of the mold centered on the axial direction, and the axial load is combined with the positive and negative torque to obtain a solid sample of hard soil.

Embodiment 3

[0052] Embodiment 3: The solid sample preparation mold of the combined sample preparation apparatus in Example 1 of the present invention is replaced with a hollow sample preparation mold, and the hollow sample preparation mold used is provided with 4 pressurized cylinders. The installation process of the hollow sample preparation mold is: first put the steel ring 32 between the inner cylinder 30 and the outer thin-walled cylinder 31, fix the piston rod 22 on the piston 14, and insert the piston rod 22 from the lower end of the inner thin-walled cylinder Penetrate through the center hole of the top cover; put the chute hollow tube 34 on the piston rod 22, and fix it on the outer thin-walled cylinder top cover through bolts 20; respectively put one end of the four pressurized cylinders through the hollow The cylinder hole on the mold top cover adopts the mode of rotation to fix the pressurized cylinder on the steel ring, and then the other ends of the 4 pressurized cylinders are...

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Abstract

The invention relates to a multifunctional joint sampling instrument for undisturbed soil. The multifunctional joint sampling instrument for the undisturbed soil comprises a hydraulic system, a sampling mould, a pressurization conversion device, a motor power system and a controller, wherein the hydraulic system consists of an oil tank, a hydraulic pipeline, an electromagnetic valve, a throttle valve, an overflow valve, an accumulator, a pressure relay, a hydraulic pump, a hydraulic pressure gauge and a double-hydraulic cylinder; the sampling mould has a solid mould and a hollow mould; a screw thread is arranged in the mould; a cutting edge is formed by using the screw thread and used for making a soft soil sample, or a drill bit is arranged and used for making a hard soil sample; conversion between the solid mould and the hollow mould is realized by using a chuck; a motor is arranged at one side of a lower hydraulic cylinder in the motor power system and provides forward and reverse torques, and rotates the mould by the transmission of double gears; and the controller controls the operation of the hydraulic system and the motor power system. The sampling instrument has the advantages of simple structure, convenient use, multiple functions, high performance, high cost performance and easy maintenance, and capability of preparing a solid sample, a hollow sample, the soft soil sample and the hard soil sample.

Description

Technical field [0001] The invention relates to an undisturbed soil multifunctional combined sample preparation instrument, which is a geotechnical sample preparation instrument. Background technique [0002] Since K. Terzaghi put forward the effective stress principle in 1923, modern soil mechanics has made great progress. [0003] In 1963, Roscoe proposed the famous Cambridge model for clay, which pushed the research of soil mechanics to a new climax and opened the door of modern soil mechanics research. The emergence and development of soil mechanics are actually based on experiments, especially the early laboratory experiments laid a solid foundation for the subsequent theoretical research on soil mechanics. In order to obtain the real physical and mechanical indicators of the soil, in-situ testing is very necessary. However, considering economic and technical reasons, as well as the inherent fragmentation, heterogeneity, natural variability, and time-space uncertaint...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28B28B3/00
Inventor 侯天顺侯天梁吉金鹏
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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