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". This machine is developed in accordance with national standards and industry practices, ensuring ease of operation and high accuracy in data collection.

Main Features:

1. The high rigidity mainframe is a door-frame type structure with a central working cylinder on the lower beam. Rails on both sides facilitate installation and removal of the triaxial pressure chamber. A spherical platen is installed in the center to ensure self-alignment and close contact with the compression rod end.

2. The pressure self-balancing triaxial pressure chamber uses advanced technology to isolate axial test force from confining pressure, ensuring independent control. Constructed from high-strength alloy steel, the pressure plates and piston rods are precision-machined for durability. The chamber is mounted on a trolley for easy sample loading and unloading.

3. The supercharger provides ultra-high pressure oil to the triaxial chamber, serving as lateral (confining) pressure. It amplifies system pressure for efficient testing operations.

4. The servo hydraulic source includes a high-pressure pump set, relief valve, precision filter, temperature sensor, cooler, and a low-pressure gear pump. It separates test oil from servo oil, reducing contamination and extending system life.

5. The air compressor unit is used to release pressure within the chamber, ensuring safe and controlled operation.

6. The measurement and control system includes axial force sensors, confining pressure sensors, deformation sensors, displacement sensors, and a full-digital controller. It supports multiple control modes such as constant force, constant deformation, and constant rate, with automatic calibration, zeroing, and storage functions.

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 across the entire range without internal/external division.

6.3 Supports automatic zeroing, calibration, and data storage.

6.4 Offers control functions like constant test force, constant deformation, and uniform rate control.

6.5 Includes protection features against overload, over-range, oil blockage, overheating, and specimen failure.

Standard Configuration:

1. One rigid host (customizable based on user requirements)

2. Pressure self-balancing triaxial 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 or higher.

2. Axial maximum test force: 1000 kN; force 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 better than one ten-thousandth.

6. Control waveform: Users can customize waveforms for loading, unloading, and time settings (0–30 hours).

7. Limit control: Automatic protection when parameters reach limits, specimen breaks, oil blockage, or overheating occurs.

8. Chamber space: Height 350 mm, width 400 mm (compatible with Brazilian splitting fixture and triaxial chamber).

9. Specimen size: Φ75 × 150 mm.