Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Portable self-seal rock SHPB (split Hopkinson pressure bar) test confining pressure loading device

A pressurizing device and self-sealing technology, used in measuring devices, using stable tension/pressure to test the strength of materials, instruments, etc., can solve the problems of cumbersome installation, complicated principles, and small confining pressure values. Easy and fast effect

Pending Publication Date: 2018-04-27
UNIV OF SCI & TECH BEIJING
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the principle of the domestic SHPB confining pressure device is complicated, the installation is cumbersome, and the confining pressure value is too small

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
  • Portable self-seal rock SHPB (split Hopkinson pressure bar) test confining pressure loading device
  • Portable self-seal rock SHPB (split Hopkinson pressure bar) test confining pressure loading device
  • Portable self-seal rock SHPB (split Hopkinson pressure bar) test confining pressure loading device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0022] The invention provides a portable self-sealing rock SHPB test confining pressure pressurization device, which consists of four parts: a cylinder body, a cover plate, a base and a synthetic rubber leather sheath. The cylinder body is provided with an oil inlet connected to the pressurized system and an exhaust port for excluding the air between the cabin body and the synthetic rubber holster; both ends of the cylinder body have hatches and cover plates that limit the external expansion of the synthetic rubber holster There are concentric circular holes equal to the inner diameter of the rubber holster; there are double U-shaped synthetic rubber holsters in the cylinder body, and the height of the cylinder body is the same as the height of the synthe...

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

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a portable self-seal rock SHPB (split Hopkinson pressure bar) test confining pressure loading device, and belongs to the field of rock mechanics and dynamics indoor test measurement. The portable self-seal rock SHPB test confining pressure loading device is characterized in that an oil inlet and an exhaust opening are formed in a cylinder of a confining pressure device, cover plates are arranged at two ends of the cylinder, concentric circular holes with equal sizes are formed in the centers of the cover plates, the diameters of the concentric circular holes can be changed according to the sizes of test rock samples, double U-shaped synthetic rubber sleeves are arranged in the cylinder, spaces between the sleeves and the cylinder are filled with hydraulic oil, and the test rock samples are arranged in the double U-shaped synthetic rubber sleeves. The portable self-seal rock SHPB test confining pressure loading device has the advantages that hydraulic oil self-seal principles are adopted for integral systems, the oil inlet is connected with a loading system by a high-pressure oil pipe, and internal confining pressures of the cylinder can be monitored via theloading system in real time; radial stable confining pressures higher than 100 MPa can be applied by the portable self-seal rock SHPB test confining pressure loading device in a short time, strain gauges can be adhered with the rock samples, the rock samples can be led out from the circular holes in the cover plates by wires, deformation procedures of rock under impact load can be monitored in real time, the systems are easy to operate and convenient to carry, the confining pressures are stable, and the like.

Description

technical field [0001] The invention relates to the field of measuring indoor rock mechanics dynamic test indicators, in particular to a confining pressure device which uses a self-sealing principle to make the confining pressure reach more than 100 MPa, and rock samples can be pasted with strain gauges to monitor deformation characteristics under dynamic load in real time. Background technique [0002] The SHPB (Hopkinson Pressure Bar Test) test under confining pressure in the rock chamber is an important mechanical index for studying the dynamic impact of rocks under confining pressure. With the exploitation of deep resources, it is urgent to study the dynamic behavior of rocks under confining pressure. At present, the principle of SHPB confining pressure device in China is complicated, the installation is cumbersome, and the confining pressure value is relatively small. [0003] The basic principle of the invention is to press the hydraulic oil into the space between the ...

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
IPC IPC(8): G01N3/12G01N3/06
CPCG01N3/06G01N3/12G01N2203/0048G01N2203/0019G01N2203/0682G01N2203/0075G01N2203/0266
Inventor 李庆文张亦海郑益武李远乔兰
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com