YSZJ-50 rock direct shear testing machine is a low-cost stress shear testing equipment designed and produced according to the needs of production tests and requirements of some users.
Product introduction
YSZJ-50 rock direct shear testing machine is a low-cost stress shear testing equipment designed and produced according to the needs of production tests and requirements of some users. The equipment is mainly used for teaching and scientific research, and is used for rock triaxial compression test. It must be able to automatically and accurately control and display test force, confining pressure, pore water osmotic pressure, axial deformation, radial deformation, etc. during the test process, and can collect, store, process and display test data and test curves in real time, and print test reports. Its performance indicators and technical parameters are as follows.
1. Main performance indicators:
1. With automatic measurement, control, data acquisition, processing, curve drawing and curve printing report (compressive strength, confining pressure, axial deformation, radial deformation, Poisson ratio, elastic modulus, etc.) functions.
2. Provide the whole process curve test of uniaxial compression of rock (soft rock) at normal temperature.
3. Complete the curve test of the whole process of triaxial compression of rock (soft rock) at normal temperature.
4. No less than 4 channels are reserved in the triaxial bin body to complete the acoustic test.
5. There are not less than 8 channels reserved for the completion of acoustic emission test in the triaxial bin body.
6. Complete pore water seepage test of normal temperature rock (soft rock).
7. Rock uniaxial compressive strength test (constant stress, constant strain, constant stress rate, constant strain rate, constant displacement rate, one-way cycle loading, load holding, unloading and other multi-link program control test).
8. The measurement system has automatic zero adjustment, automatic calibration, continuous full measurement without classification, curve coordinates with adaptive row.
9. With the function of speed control and maintenance of test force, deformation, displacement, etc., with overload automatic protection function, when axial deformation, radial deformation, time and other parameters reach the limit value or pre-set, sample fracture, oil circuit blockage and oil temperature is too high, it can be automatically protected.
10. Stepless speed regulation, force, displacement, axial and radial deformation, various control methods can be smoothly switched curves, data storage and curve amplification during the test, and can be switched to display each test curve during the test.
The technical indicators comply with the provisions of the People's Republic of China water conservancy industry standard SL/T264-2020 "Rock Test Regulations for Water Conservancy and hydropower Engineering" and JTG E41-2005 "Highway Engineering Rock Test Regulations".
Main functions and characteristics
1. Mainly measured the shear strength of the rock;
2. The machine adopts back type frame, good rigidity, stable and reliable, small footprint;
3. The high pressure oil source pump station provides loading force, and the pressure is stabilized by the special electro-hydraulic proportional servo valve and 10L accumulator during the shutdown of the pump station, so the high pressure oil source pump station does not need to run for a long time, the system is energy-saving and does not need to be equipped with cooling system;
4. The equipment for microcomputer automatic control, all kinds of test parameters are controlled by the computer, storage, measurement, display, processing and printing charts;
5. The chart can show: shear stress-shear displacement curve, shear stress-normal displacement, shear stress-normal stress curve, can also show force-time, force-displacement and other curves;
6. Equipped with overload and limit protection, when the loading force exceeds the rated theoretical value, the system automatically unloads and stops the test.
Main technical index
1. Sample size: 100×100×100mm, Φ50×100mm
2. Maximum vertical load: 500KN
3. Maximum horizontal load: 500KN
4. Load resolution: 0.01KN
5. Force sensor accuracy: ±0.3%F.S
6. Maximum vertical stroke: 80mm (cylinder)
7. Maximum horizontal stroke: 80mm (cylinder)
8. Displacement meter range: vertical direction 0-50mm, horizontal direction 0-75mm
9. Displacement measurement resolution: 0.001mm
10. Displacement measurement accuracy: ±0.5%F.S
11. Working medium: N46 anti-wear hydraulic oil
12. Power supply: AC380V 50HZ
13. Installation area: 15 square meters
2. Overall requirements:
11. The rock triaxial compression test system should include: axial loading system, confining pressure loading system, pore pressure loading system, software system, hydraulic system, control system, computer and printer.
3. Technical parameters:
12. The axial loading system includes host loading frame, host loading cylinder, displacement sensor, load sensor, deformation sensor, host controller, host servo valve, etc.
12.1 Loading the Framework on the Host:
Gantry frame structure, rigidity is not less than 10GN/m, with tempered glass safety protection window; The size of the host should meet: length × width × height ≥600×800×1970mm, the weight of the host should not be less than 2.5 tons.
12.2 Host loading cylinder:
Static pressure support cylinder, the maximum load is 2000kN, the piston stroke is not less than 250mm, the diameter of the upper and lower pressure plate is not less than 250mm, the net distance between the front two columns is not less than 600mm, and the diameter range of the cushion block is adjusted to 100mm-250mm.
12.3 Displacement Sensor:
Measuring range 0-120mm, measuring accuracy ≥±0.5%FS; Measuring resolution ≤0.001mm; Control rate 0.01~50mm/min, continuous measurement.
12.4 Load Sensor:
Maximum output force: 2000kN, resolution ≤20N, effective measuring force range: 20kN-2000kN; Force measurement accuracy: ≤±0.5%; Test force loading speed range: 0.01-20kN/s.
12.5 Deformation sensor:
Axial deformation measurement range 0-10mm, radial deformation measurement range 0-5mm, measurement resolution: ≤0.0001mm, measurement accuracy ± 1%FS, speed control range 0.01mm-50mm/min.
12.6 Host Controller:
Adopt imported brand high-performance EDC120 full digital servo measuring and control device, built-in, no button and display panel, the main CPU of the controller adopts AMD high frequency processor, high measurement resolution of ± 250,000 codes of high resolution, can achieve high precision measurement, the whole process of undivided technology, high transmission rate maximum transmission rate can reach the highest level of 1KHz three closed loop control, Nonlinear correction technology, the acquisition frequency is 2.5kHz, the maximum test frequency is 500Hz, the transmission rate is 100-1000μs, and the isi expansion channel is not less than 3.
12.7 Host servo valve: imported servo valve, rated flow: 5-40L/min; Maximum flow: 75L/min Port diameter: not less than 7.9mm; Valve type: single stage valve with sliding sleeve; Spool drive mode: permanent magnet linear force motor drive directly; Vibration: not less than 30g, three axes; Weight: not less than 2.5kg; Maximum working pressure 35MPa; Oil temperature range: -20°-80°; Sealing ring material: nitrile rubber, fluorine rubber; Working medium: petroleum-based hydraulic oil conforming to DIN51524 standard; System oil filter: high pressure oil filter without side valve, with dirt blocking alarm, installed in the main oil circuit of the system; Step response: less than 12ms; Resolution: less than 0.1%.
13. The confining pressure loading system shall include: three-axis pressure chamber, confining pressure supercharger, controller and servo valve.
13.1 Three-axis pressure chamber:
The self-balancing structure is made of high-strength stainless steel, and the mutual conversion between self-balancing and non-self-balancing can be realized. The pressure chamber car adopts non-bearing car, which can realize the most convenient pressure chamber movement. The diameter of the pressure outdoor part is not less than 290mm, the height is not less than 890mm, the diameter of the pressure indoor part is not less than 180mm, the height is not less than 350mm.
13.2 Confining pressure supercharger:
Supercharger dimensions: length ≥600mm, width ≥600mm, height ≥1600mm, internal high pressure chamber diameter ≥102mm, high ≥185mm, low pressure chamber diameter ≥220mm, high ≥180mm; Weight not less than 700Kg.
13.3 Triaxial pressure chamber: maximum confining pressure 120MPa.
13.4 Pressure sensor: Measuring range 120MPa.
13.5 Confining pressure measurement accuracy ±1%FS.
13.6 Confining pressure resolution 0.01%FS.
13.7 Confining pressure loading speed range 0.001-1MPa/s (continuous).
13.8 High precision confining pressure servo pump control accuracy: <0.01MPa.
13.9 High precision confining pressure servo pump flow range: 0.01 ~ 60ml/min.
13.10 Protection mode: Overpressure relief valve protection.
14. Confining pressure loading system servo valve: imported brand servo valve, flow 40L/min.
15. Confining pressure loading system controller: Adopt imported brand high-performance EDC120 full digital servo measuring and control device, built-in, no button and display panel, the main CPU of the controller adopts AMD high frequency processor, high measurement resolution of ± 250,000 codes of high resolution, can achieve high precision measurement, the whole process of undivided technology, high transmission rate maximum transmission rate can reach the highest level of 1KHz three closed loop control, Nonlinear correction technology, the acquisition frequency is 2.5kHz, the maximum test frequency is 500Hz, the transmission rate is 100-1000μs, and the isi expansion channel is not less than 3.
16. Hole pressure loading system includes hole pressure supercharger, controller and servo valve.
16.1 Hole pressure supercharger: supercharger dimensions: length ≥600mm, width ≥600mm, height ≥1600mm, internal high pressure chamber diameter ≥102mm, height ≥185mm, low pressure chamber diameter ≥220mm, height ≥180mm, weight about 800Kg.
16.2 Maximum pore pressure 80MPa.
16.3 Pressure sensor: Measuring range 100MPa.
16.4 Hole pressure measurement accuracy ±1%FS.
16.5 Pore pressure resolution 0.01%FS.
16.6 Pore pressure loading speed range 0.001-1MPa/s (continuous).
16.7 High precision hole pressure servo pump control accuracy: <0.01MPa.
16.8 High precision pore pressure servo pump flow range: 0.01 ~ 60ml/min.
16.9 Protection mode: Overpressure relief valve protection.
17. Hole pressure loading system servo valve: imported brand servo valve, flow 40L/min.
18. Hole pressure loading system controller: Adopt imported brand high-performance EDC120 full digital servo measuring and control device, built-in, no button and display panel, the main CPU of the controller adopts AMD high frequency processor, high measurement resolution of ± 250,000 codes of high resolution, can achieve high precision measurement, the whole process of undivided technology, high transmission rate maximum transmission rate can reach the highest level of 1KHz three closed loop control, Nonlinear correction technology, the acquisition frequency is 2.5kHz, the maximum test frequency is 500Hz, the transmission rate is 100-1000μs, and the isi expansion channel is not less than 3.
19. Software system: a set of special software, including the system application area, data display area, test curve selection area, curve display area and control panel area during the test operation process, each area has different uses, which can realize the accurate execution of control instructions during the test, the quick setting of control parameters and the real-time display of test data; The software has arbitrary programming functions, has independent intellectual property rights, provides property rights proof, and the software is upgraded free for life.
20. Hydraulic system:
20.1 Hydraulic control system adopts internal sliding and tumbling integrated structure.
20.2 Motor power ≥2kW; Voltage: 380V 50HZ; Motor speed ≥960 r/min; System working pressure ≥25 MPa; System working flow: ≥2 L/min; Hydraulic pump displacement ≥ 2.2ml /r; Control voltage: DC24V; Volume: ≥200L.
20.3 Oil cleanliness NAS16387 High pressure filtration accuracy 5μm Low pressure filtration accuracy 50μm Overtemperature overheating safety protection Liquid level information one-stop monitoring.
20.4 The hydraulic system has a safety protection function, which can monitor the liquid pressure of the system in real time. When the pressure exceeds the warning value, the protection device will automatically open to ensure the safety of the entire device and personnel.
21. Control system:
21.1 The control cabinet adopts the integrated mute system to operate the sliding tumbling structure, and the size is not less than 1300mm×600mm×600mm.
21.2 Control process: load, displacement control constant pressure, constant rate loading, loading rate range 0.01-1kN/s, load and displacement with parameter setting and over-limit protection function, including sine wave, including multi-waveform loading function, synchronous control.
21.3 Dual measurement remote control safety protection system: including sensor data measurement display and pressure gauge measurement display, remote hydraulic system pressure regulation function, the operation is fully integrated; Hydraulic system and force control system dual safety protection function.
22. Computer and printer:
22.1 Computer configuration: CPU:I7-12700, memory :≥16G DDR4-3200, hard disk :M.2 PCIe interface, capacity ≥512GB; Solid state drive: capacity ≥2TB, speed ≥7200RPM; Display size: ≥21.5 inches, resolution ≥1920×1080, the original factory pre-installed win10, 64-bit system one machine one.
22.2 Printer configuration: laser printer, black and white mode; Resolution: no less than 1200×1200dpi; Level 1 Energy efficiency, paper box: 150 pieces.
23. Other
23.1 Triaxial compression sample size: φ25mm×50mm, φ50mm×100mm, pressure head size φ25mm, φ50mm, can be used for seepage.
23.2 Indirect tensile specimen size: φ≤50mm.
23.3 Sample size of variable Angle shear fixture: length ≥50mm, width ≥50mm, height ≥50mm, shear Angle range of 30°-75°.
23.4 Reserved modules: acoustic emission 8-channel, high and low temperature system, ultrasonic system.
24. Accessories:
24.1 One set of direct drawing fixture is provided.
24.2 One set of Brazilian splitting fixture is provided.
24.3 One set of variable Angle shear fixture is provided.
24.4 One set of special toolbox is provided.
25. This project is a turnkey project, and civilized construction is carried out in strict accordance with user requirements.
26. After-sales service: Manufacturers or dealers promise to provide 24-hour after-sales response. Manufacturer or distributor to provide after-sales service commitment for the project. Promise the machine within 3 years free on-site maintenance.
