Unlock instant, AI-driven research and patent intelligence for your innovation.

Axial underwater force measuring system device of dynamic triaxial apparatus

A system device, triaxial technology, applied in the measurement device, using stable tension/pressure to test the strength of materials, instruments, etc., can solve problems such as interference, achieve the effect of accurate measurement and improve quality

Active Publication Date: 2021-01-12
ZHEJIANG UNIV OF TECH
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems existing in the existing dynamic triaxial instrument, and to provide an axial force measurement system that can avoid the interference of the additional nonlinear stress caused by the instrument functional film produced by the sensor outside the pressure chamber, so as to solve the current problem. There are technical problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Axial underwater force measuring system device of dynamic triaxial apparatus
  • Axial underwater force measuring system device of dynamic triaxial apparatus
  • Axial underwater force measuring system device of dynamic triaxial apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 The axial underwater force measuring system device of a dynamic triaxial instrument according to the present invention includes:

[0027] Frame 1 includes a support base 11 and a gantry 12, the bottom of the gantry is installed on the support base, and the upper beam of the gantry is provided with a through hole for installing a lifting mechanism;

[0028] The axial loading mechanism 2 is arranged between the gantry beam and the support seat, and includes an axial loading rod assembly 21, a pressure chamber 22 and a sample loading device 23, and the lower end of the axial loading rod assembly 21 is inserted into the pressure chamber After the inner cavity is sealed, the sample loading device 23 is fixed; the pressure chamber 22 is arranged on the frame below the axial loading rod assembly, the top of which is connected to the lifting end of the pressure chamber lifting mechanism 3, and the bottom of the pressure chamber 22 is provided with a water outlet. I...

Embodiment 2

[0041] Embodiment 2 The axial underwater force measuring system device of a dynamic triaxial instrument described in this embodiment includes a frame 1, an axial loading mechanism 2, a pressure chamber lifting mechanism 3 and a data acquisition mechanism 4, wherein the The axial loading mechanism 2 includes an axial loading rod assembly 21 composed of a connecting rod 211 and a loading rod 212, a pressure chamber 22 composed of a pressure chamber cover 221 and a pressure chamber base 222, and an upper pressurization cap 231, a lower pressurization cap 232 and a sample loading device 23 composed of a cylinder; the pressure lifting mechanism 3 includes a lifting cylinder 31 and a lifting rod 32, and the data acquisition mechanism 4 includes a top load sensor 41, an underwater load sensor 42, a data acquisition line 43 and a control device; the underwater load sensor is set in the pressure chamber, its axis coincides with the axis of the loading rod, and is located above the upper...

Embodiment 3

[0047] Embodiment 3 The installation method of the present invention is as follows:

[0048] 1) Remove the original multifunctional TYD-20 moving triaxial instrument axial loading rod;

[0049] 2) According to the size of the original multifunctional TYD-20 moving triaxial instrument, remove the loading rod, and make connecting rod 211 and loading rod 212 with the same cross-section size. The total length of connecting rod 211 and loading rod 212 is the same as that of the original Axometer loading rods are the same length. The top load sensor 41 is reserved and arranged on the top of the connecting rod 211 . An underwater load sensor 42 with relatively good accuracy, water tightness and reliability is arranged at the bottom of the loading rod 212 . And the loading rod 212 is hollowed out in the middle of the cross-section along the axial direction, and the hollow part is used for placing the data collection line 43 of the sensor. The connecting rod 211 and the loading rod ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An axial underwater force measuring system device of a dynamic triaxial apparatus comprises a rack which comprises a supporting seat and a portal frame; an axial loading mechanism which is arranged between the portal frame cross beam and the supporting seat and comprises an axial loading rod assembly, a pressure chamber and a sample loading device, wherein the sample loading device is fixedly arranged after the lower end part of the axial loading rod assembly is inserted into the sealed inner cavity of the pressure chamber; wherein the pressure chamber is arranged on the rack below the axial loading rod assembly, and the top of the pressure chamber is connected with the lifting end of the lifting mechanism; the sample loading device comprises a sample clamping part and a lifting part; a pressure chamber lifting mechanism which is arranged at the top of the rack and comprises a lifting cylinder and a lifting rod; and a data acquisition mechanism which comprises a top load sensor, an underwater load sensor, a data acquisition line and a controller. The device has the beneficial effect that the influence of the additional force of the functional film generated between the pressure chamber top cover and the loading piston rod due to the sealing requirement of the pressure chamber during the measurement of the axial load sensor is eliminated.

Description

technical field [0001] The invention relates to an axial force measurement system of a dynamic triaxial instrument in geotechnical engineering, in particular to an optimized transformation of an axial underwater force measurement system device of a dynamic triaxial instrument. Background technique [0002] Similar test instruments in China basically use the same axial load collection method as our existing instruments. During the test process, since the axial sensor is installed outside the closed pressure chamber, the control force is applied to the test soil sample through the axial actuating piston. This will inevitably have the effect of the additional force of the functional membrane due to the airtight requirements of the pressure chamber. This part of the additional force cannot be accurately removed from the display value of the load cell, thus affecting the accuracy and test results of the test. [0003] In order to avoid this phenomenon, at present, similar importe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/04
CPCG01N3/08G01N3/04G01N2203/0256Y02E30/30
Inventor 孟凡丽陈俞超蒋正淳李明车良鹏
Owner ZHEJIANG UNIV OF TECH