YAW-30W microcomputer controlled rock universal testing machine

Technical specification and scope of application
1. This machine is mainly used for determination of rock tensile and compressive strength (by Brazilian disc test) of soft rock uniaxial compressive strength of a multifunctional testing instrument; top and debris loading is used in the load test, point load test is the rock test pieces are arranged in two spherical Park cone between the plate and the specimen concentrated load is applied, until the destruction and according to the failure load of rock point load strength is obtained. The multifunction test instrument is convenient, economic, rapid advantages of multi-functional scientific testing instruments, used in coal mine, geology, water industry and trade, transportation, engineering and construction as rock mechanics experiments.
2. The host uses the high strength frame, the machine structure is compact, rational layout. Control unit adopts AC servo control system, high control precision, high frequency response AC servo motor, driving precision low noise reducer, precision ball screw drive pair test, test speed adjustment (0.2 - 50mm / min), test process is stable and efficient. Test data can access arbitrary, and can realize the analysis of the data and curves of the, local amplification and data test environment, test conditions and editing, and print out the complete test report and curve.
3. This series of products in full compliance with the GB/T16491-2008< electronic universal testing machine >JJF1103-2003< universal testing machine computer data acquisition system evaluation >, the force of the JJG139-1999<, compression="" and="" universal="" testing="" machine="" verification="" regulation="">, can be in accordance with the requirements GB/T50266-2013< engineering rock mass test method standard > and so on standard, Completing rock tensile (Brazil Split), rock compression strength, rock point load and shear (variable angle shear) tests.
,  function and technical parameters
1. host: specification model: YAW-30W
2. test force measurement:
    A. test force measurement range:0-300kN

    B. Accuracy of testing force less than or equal to the value of the display value of 1%
    C. testing force measurement resolution: 0.005%FS.
3. displacement measurement:
    A. photoelectric encoder measuring stroke
    B. displacement indication relative error ：±1%;
    C. displacement measurement resolution: 0.005mm.
    The displacement value display: the direct reading of the computer screen display
4. speed control:
    A. load and other rate control range: 0.05-8.0kN/S;
    Constant rate control precision: + 5%;
    B. test speed control range: 0.05-50mm/min.
5. Dimension of bearing plate: ∮ 260 mm.
6. Piston stroke: 200mm.
7. Platen spacing: 350mm.
8. Column spacing: 300mm
9. control system:
    A. win7 operating platform;
    B. when automatically control the process of testing, complete the test machine test data screen display.
    C. has the test force, the peak value, the test specimen deformation, the displacement, the test curve the screen display function;
    D. can meet the requirements of GB/T50266-2013< engineering rock mass Test Method Standards > and etc.;
    E. complete  rock tensile strength and rock compressive strength test, rock point load test, shear (variable angle shear) and other mechanical tests.
10. applicable standards and data processing:
    A. users can customize the data processing software that meets the requirements of the national standard or other standards;
    B. test process can simulate the reproduction and re analysis of the test data.
11 safety protection device:
    A. when the test force exceeds the maximum test force of 2%-5% each file overload protection, system unloading;
    B. when the lead screw rises to the upper limit position, the stroke protection, motor stop;
    C. has over current, over voltage and other protection.