1. Main purpose and scope of application
NDW-2000 Microcomputer Control of high strength bolting torsion testing machine , satisfies GB / T16823.2-1997 "General fastening bolt fasteners" and GB / T16823.2-1997 "fastening bolt fastening method", GB / Relevant requirements in T3632-2008 "Torsion shear type high-strength bolt connections for steel structures", and can automatically measure the yield tightening torque of the bolts, pre-tightening force, ultimate tightening force and torque, torque coefficient, tightening corners and other bolts , The mechanical properties of the stud and the mechanical properties of the lock nut such as guaranteed load, tightening load, and effective torque.
The high-strength bolt connection pair torsion testing machine is composed of a host, a measurement control system, a computer system, a software package, and functional accessories. It is suitable for testing the performance of various components such as transmission shafts, half shafts and other static mechanics. The machine adopts horizontal structure. Computer screen display, digital data acquisition control system and all digital AC servo system form a closed loop control. It is driven by a precision reducer, which has the characteristics of uniform loading, stable, no impact, and accurate data acquisition and control.
Test function: WinXP Chinese operating platform, with variable structure PID parameter adjustment function, realizing full closed loop control of torque, torsion angle and deformation. Using a graphical window operating system, the display screen and operation panel can be set; the test speed and various control parameters can be set; the basic test results (breaking value, peak value) can be displayed in real time; the test process can be displayed in real time Kinds of related parameter graphics; can realize system diagnosis and display diagnosis results. The testing machine realizes hierarchical management authority. Different users can enter different management interfaces, divided into three levels of user management authority.
This machine adopts imported Japanese all-digital AC servo control system, reducer, digital data acquisition and processing system, and photoelectric encoder to collect the torsion angle of the sample.
2. Main technical indicators
Maximum torque: |
±2000Nm |
Effective torque range |
2％～100％F.S |
Torque resolution: |
±1/200000 (the whole resolution does not change) |
Indication error of test torque: |
±1% |
Indication error of test torque repeatability: |
≤1% |
Maximum axial load: |
500kN |
Axial force measurement range |
2％～100％F.S |
Test force indication error: |
±1% |
Indication error of test force repeatability: |
≤1% |
Effective test space: |
450mm; (any manual adjustment within the range of 0～450mm) |
Center height of main shaft of testing machine: |
≥100mm; |
Test loading: |
0.05～10r/min arbitrarily set; |
Angle accuracy: |
≤±0.2°; |
Voltage: |
AC380V 50Hz motor power: 3kW |
3. Working environment conditions
3.1 at room temperature 10 0 C ~ 35 0 within the range C, relative humidity less than 80%;
3.2 Install correctly on a stable foundation or workbench, with a level of 0.2/1000;
3.3 In an environment with no vibration, no corrosive medium and no strong electromagnetic field interference;
3.4 The fluctuation range of the power supply voltage should not exceed ±10% of the rated voltage.
3.5 There must be a certain space for installation and maintenance around the testing machine.
