Equipment Description:

The PLW-1000 microcomputer controlled fatigue testing machine for steel strand anchorages consists of a main frame, actuators, wheel amplitude load sensors, displacement sensors, fixtures, etc. The upper crossbeam is driven up and down by hydraulic pressure to adjust the test space.

The host adopts a four column high rigidity structure design, with the actuator placed on the upper crossbeam and a fatigue specific load sensor installed on the actuator piston head. The upper crossbeam adopts hydraulic lifting and hydraulic clamping devices, and the entire frame adopts a seamless connection design.

The product meets the requirements of standards such as GB/T14370-2007 Anchors, Fixtures, and Connectors for Prestressed Reinforcement, JT/T 329.2-1997 Test Methods and Inspection Rules for Anchors, Fixtures, and Connectors for Prestressed Steel Strands in Highway Bridges, TB/T 3193-2008 Technical Conditions for Anchors, Fixtures, and Connectors for Prestressed Reinforcement in Railway Engineering, JGJ85-2002 Technical Specification for Anchors for Prestressed Reinforcement, etc.

Using an electro-hydraulic servo fatigue testing machine for fatigue testing of anchor steel strands, the loading waveform is perfect. At the same time, replacing the fixture can be used for other fatigue tests, such as fastener fatigue tests, rail bending fatigue tests, component bending fatigue tests, etc. Due to the use of electro-hydraulic servo loading method, a faster loading frequency can be set, greatly reducing the test time.

Functional features:

The position adjustment of the clamp is convenient, and the position of the actuator piston can be infinitely and digitally adjusted.

Adopting a dedicated fatigue load sensor with a long service life.

Frequency and amplitude digital adjustment, simple operation, no need to adjust the oil source system.

The load and displacement waveforms can be freely selected during the experimental process.

Adopting "CPU+DSP" dual core control, bus slot architecture, easy expansion, and excellent dynamic performance.

Communication with computers uses USB or Ethernet ports (RJ45), which have high data transmission rates and enable real-time software data processing.

The high-speed sensor data acquisition card ensures high-speed response of dynamic control and accurate data sampling.

Displacement, load, and deformation closed-loop control achieve smooth control switching between each other.

Built in function generator for controlling sine waves, triangular waves, trapezoidal waves, oblique waves, etc.

Closed loop control is fast and high-frequency, achieving complete dynamic control characteristics.

The sampling and control frequency is stable, ensuring the accuracy of data and control.

It has limit protection and full range overload protection functions.

Technical indicators: