Overview (Principle, construction and purpose)
Torsional fatigue testing machine refers to the use of electro-hydraulic servo, electro-magnetic resonance, hydraulic, electric and other exciting mode, equipped with a suitable control system, can be within a certain frequency range, the sample applied cyclic torque testing machine.
The testing machine usually includes torsion system, torque measurement system, extensometer system, control system and data acquisition system.
In addition, according to the different USES of the testing machine, you can also choose a variety of accessories.
The torsional fatigue testing machine is mainly used to measure the fatigue characteristics or fatigue life of metal and non-metal materials and their components (such as transmission shaft, half shaft, belt wheel, etc.) under the condition of alternating torque.
Applied industries: metrology and Quality inspection, metallurgical iron and steel, machinery manufacturing, fasteners, hardware tools, auto parts, institutions of higher learning, research laboratories and other industries.
Functional characteristics of torsion testing machine
According to the technical requirements of various springs, elastomers and elastic elements, adjust the amplitude and frequency of various springs, elastomers and elastic elements;
2. Industrial-grade LCD control panel, Chinese character operation, real-time display of test Angle, times and frequency, and preset as required.
3 choose AC servo governor, with pressure regulating, frequency regulating, voltage stabilizing, speed regulating and other functions, so that the work of the testing machine is more controllable and stable;
4. When the preset conditions are reached, the machine can automatically stop and beep prompt;
5. The torsional direction can be set freely, and the torsional speed can be displayed in two units: T /m,Hz;
This machine adopts absolute value rotary encoder, no accumulated error, the control accuracy is greatly improved.
Verification cycle
The testing machine verification period of the first verification is half a year, and the testing machine verification period of the subsequent verification shall not exceed 1 year.
After the testing machine has been repaired to affect the measurement characteristics, the first verification period is half a year, and it is carried out according to the first verification item.