Microcomputer control electro-hydraulic servo rock triaxial testing machine main features - Database & Sql Blog Articles

YSD-1

Microcomputer Controlled Electro-Hydraulic Servo Rock Triaxial Testing Machine

Applicable Test Method Standard

SL264-2001

"Water Test Procedures for Water Conservancy and Hydropower Projects". Developed according to relevant national standards, this system emphasizes practical application in the industry, offers user-friendly operation, and ensures accurate and reliable data output.

Main Features:

The rock triaxial testing machine is mainly composed of a high rigidity (medium stiffness) mainframe, a pressure self-balancing three-axis pressure chamber, a supercharger, a servo hydraulic source, a servo valve, an air compressor unit, a measurement and control system, and a computer system.

1. The high rigidity mainframe features a door-frame type structure with a centrally located working cylinder and rails on both sides for easy installation and removal of the pressure chamber. A spherical platen is installed in the center of the frame beam for automatic alignment, ensuring proper contact with the compression rod end.

2. The pressure self-balancing three-axis pressure chamber utilizes advanced technology to ensure that axial test force and confining pressure operate independently without interference. Constructed from high-strength alloy steel, each pressure plate and piston rod are made from heat-treated and precision-machined bearing steel. The pressure chamber is mounted on a trolley for easy loading and unloading of samples.

3. The supercharger provides ultra-high-pressure oil to the three-axis pressure chamber, serving as lateral pressure (confining pressure) after pressure amplification.

4. The servo hydraulic source includes a high-pressure piston pump set, relief valves, precision oil filters, temperature sensors, coolers, and a low-pressure gear pump. It separates test oil from servo working oil, preventing contamination and extending service life.

5. The air compressor unit is used to release pressure from the chamber.

6. The microcomputer-controlled electro-hydraulic servo rock triaxial testing system consists of axial force sensors, confining pressure sensors, axial and radial deformation sensors, displacement sensors, all-digital measuring controllers, and servo valves.

6.1. The system has 12 measurement channels, including 2 force channels, 1 axial and radial deformation channel, and 2 displacement channels.

6.2. High-resolution measurement with consistent accuracy across the entire range, without internal or external division.

6.3. Features automatic zeroing, calibration, and data storage.

6.4. Offers control functions such as constant force, constant deformation, constant displacement, and uniform rate control.

6.5. Includes protection features like overload, over-range, oil blockage, high oil temperature, and sample fracture detection.

Standard Configuration:

1. One rigid host (structure and stiffness tailored to user requirements)

2. Pressure self-balancing three-axis pressure chamber

3. Supercharger set

4. Servo hydraulic source

5. One full digital servo controller

6. One air compressor unit

Technical Parameters:

1. Host stiffness up to 5 GN/m

2. Axial maximum test force: 1000 kN, force measurement resolution: 10 N, accuracy ±1%

3. Maximum confining pressure: 60 MPa, accuracy ±2%, resolution 0.1 MPa

4. Deformation measurement range: Axial 0–5 mm, Radial 0–3 mm, resolution 0.0001 mm, accuracy ±1%

5. Displacement measurement range: 0–100 mm, accuracy <±0.5% FS, resolution higher than one ten thousandth

6. Control waveform: Users can customize various waveforms, including loading, unloading, and time settings ranging from 0 to 30 hours

7. Limit control: Automatically protects when axial deformation, radial deformation, time, or other parameters reach preset limits, or when the sample breaks, oil circuit is blocked, or oil temperature is too high

8. Space height: 350 mm, width: 400 mm (completely fits under Brazilian splitting fixture and triaxial chamber)

9. Sample specifications: Φ75 × 150 mm