Supplier of fully automatic spring bar fatigue testing machine

The railway bullet bar fatigue testing machine is used to determine the fatigue performance of bullet bars under specified loads (deformations). Meet the fatigue test methods and technical standards for elastic bars such as TB/T2329-2002 and TB/T1495.1-92. The number of experiments can be pre-set.

The 50 kN electro-hydraulic servo spring fatigue testing machine mainly consists of a host (with a 50kN servo linear actuator placed below), a hydraulic chuck and its hydraulic drive module, a set of constant pressure servo pump station (flow rate of 40L/min, system pressure of 21MPa), a fully digital single channel servo controller, a computer printer, related testing software, and other necessary accessories.

The host is a double column frame structure, with a 50kN servo linear actuator placed inside the host frame. Special auxiliary fixtures are installed on the top of the crossbeam and actuator piston rod respectively. The adjustment of the host crossbeam adopts a hydraulic lifting, hydraulic clamping, and elastic release structure to ensure the stability and reliability of the crossbeam during the test process, while also ensuring that the crossbeam remains locked and immovable in non test states. The outer surface of the column is treated with electroplated hard chromium, which can effectively increase the column's wear resistance, improve its corrosion resistance, and increase the aesthetic appearance of the host.

Technical Indicators:

Test force ± 50kN

The indication accuracy is not graded throughout the entire process, with a tolerance of ± 0.5%;

The indication accuracy shall not exceed ± 0.5%.

The amplitude of the actuator is ± 75mm

The indication accuracy is ± 0.5%.

Frequency range 0.01-20Hz can be customized according to user requirements

Displacement measurement resolution 0.01mm (magnetostrictive displacement sensor) Displacement measurement resolution

Experimental space 0-500mm (manually adjustable) can be customized according to user requirements

The distance between columns is 600mm and can be customized according to user requirements

Number of workstations: 1 workstation can be customized according to user requirements

Sample clamping range: one type for each of types I, II, and III

Control method: Load, displacement, deformation control method

Main experimental waveforms include sine wave, square wave, triangular wave, oblique wave, and external input waveform

Specification of constant pressure servo pump stationFlow rate of 40L/min, 21MPa, motor power of 22kW.