1. Purpose
The PWS-50 electro-hydraulic servo catenary embedded channel fatigue testing machine adopts advanced electro-hydraulic servo control technology with advanced technology and complete functions. It is mainly used for fatigue life testing of embedded channels in electrified railway catenary tunnels. The embedded channel fatigue testing machine is one of the series of dynamic and static universal testing machines developed by our company. The main components of the testing machine, constant pressure servo pump station, hydraulic chuck and other key components are designed and manufactured by our company. The key outsourcing parts such as servo valves and seals are all selected international and domestic famous brands of similar products, which greatly improves the stability of the system And reliability, the overall performance of the testing machine is equivalent to the international advanced product technology level .
2. Related standards
1. Meet the standards
1) TB/T3329-2013 "Electrified Railway Catenary Tunnel Embedded Channel"
2) TB/T 2074-2010 "Test Methods for Catenary Components of Electrified Railways"
3) T / Camet 02003- 2017 " Urban Rail Transit embedded channel and sleeve technical standards " .
2. The main tests that can be carried out include:
1) Fatigue characteristic test of the channel body (TB/T3329 standard 5.5.6);
2) Fatigue characteristic test of channel, anchor rod and T-bolt combination prefabricated (TB/T3329 standard 5.5.7);
3. Main technical indicators:
Serial number |
Project content |
Main technical parameters and indicators |
1 |
Maximum static test force |
±50kN, indication accuracy from 2% FS ±1% |
2 |
Maximum amplitude of actuator |
±75mm, indication accuracy ±0.5%FS |
3 |
Frequency Range |
0.1-15Hz |
4 |
Main wave shape |
Sine, square wave, triangle, oblique wave |
5 |
Amplitude frequency characteristics |
When the amplitude frequency is 5Hz, the displacement is ±3mm |
6 |
Oil source specification |
36L/min, 21MPa, 18kW |
7 |
Controller |
Fully digital hydraulic servo control system |
8 |
way to control |
Force, displacement and deformation fully digital PIDF closed loop control |
9 |
Test space adjustment |
Hydraulic lifting, manual locking beam |
10 |
Filtration accuracy |
3μ |