Rock shear instrument

The electric stress type direct shear instrument for rocks is manufactured in accordance with the national industry standard (SL264-2001) "Rock Test Procedures for Water Conservancy and Hydropower Engineering" (JTGE41-2005) "Rock Testing Procedures for Highway Engineering", this instrument adopts the horizontal push method and is mainly suitable for direct shear tests on rock blocks, structural surfaces (such as joint surfaces, inside layers, inside slices, crack surfaces, etc.) and contact surfaces between concrete (or mortar) and rocks (cemented surfaces), as well as shear strength tests on the joint surface between concrete and other materials.Its structural performance fully complies with the test specification requirements.

2. Main technical parameters:

1. Normal load P: 0~500KN

2. Normal working stroke S: 0~150mm

3. Lateral load Q: 0~500KN

4. Horizontal working stroke S: 0~150mm

5. Normal space: ≤450mm (the maximum sample size that can be placed is 200mm high)

6. Horizontal space: ≤400mm (the maximum width of the sample size that can be placed is 200mm)

7. The shear cylinder and ejector rod are adjustable up and down (according to the height of the sample, it is easy to adjust and the test is fast)

8. Both normal and tangential force sensors are: high-precision spoke sensors.(Direct force measurement is more direct and accurate than pressure sensor force measurement)

9. There are displacement sensors in both normal and tangential directions, and a digital display directly displays two displacements, two deformations, two forces and two loading speeds.

10. The digital display is highly integrated and equipped with a micro printer.

11. Shear load speed V: 0~30KN/S (manual stepless speed adjustment)

12. Load indication mode: LCD digital display

13. Load indication accuracy: 0.1KN

14. Displacement measurement: direct reading from photoelectric encoder (0.01mm).

15. Loading method: electro-hydraulic.The hydraulic pump is an imported ultra-low noise pump.

16. Load control mode: manual stepless speed regulation.Special device with voltage stabilizing function.

17. Motor power: 0.75KW

18. Working voltage: 380V/220V

19. Complete machine weight: 1300Kg

20. Ball row down to type.

21. Overall dimensions: 1100x850x1980mm

3. Direct cut box size:

Choose any three sets according to user requirements

4. Configuration list:

1. 1 host machine

2. 2 photoelectric encoders (integrated into the host machine)

3. 3 sets of direct cutting boxes

4. 1 LCD digital display (on the host computer)

5. 1 micro printer (integrated into the digital display instrument)