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The first domestic three-station sleeper fatigue tester, with the ability to test fatigue life at the same time of three samples per group, greatly improves the detection efficiency and reduces the operating cost. It adopts a 3-station self-reactive force integrated loading frame, which has a compact structure and a small footprint. This model is developed according to the technical requirements and design concepts put forward by the railway construction inspection station. It has been operating continuously and reliably for a long time in the China Academy of Railway Sciences. It is now a CRCC general fatigue testing equipment.
It is mainly used for testing the mechanical properties and fatigue life of large components and building structures. The machine is equipped with corresponding test loading attachments to achieve typical concrete or steel structures such as beams, columns, plates, frames, sleepers, rails and their welded joints, bridges (full-scale), steel trusses, rubber bearings, railway fasteners Static loading of assembly, steel wire anchors, cables, large deformed springs, slings, rigging, ring joints, automobile chassis, automobile front and rear axles, locomotive bogies, large-diameter precision-rolled rebar, highway pavement structures, etc. Dynamic load performance test and fatigue life test.
The first domestic three-station sleeper fatigue tester, with the ability to test fatigue life at the same time of three samples per group, greatly improves the detection efficiency and reduces the operating cost. It adopts a 3-station self-reactive force integrated loading frame, which has a compact structure and a small footprint. This model is developed according to the technical requirements and design concepts put forward by the railway construction inspection station. It has been operating continuously and reliably for a long time in the China Academy of Railway Sciences. It is now a CRCC general fatigue testing equipment.
It is mainly used for testing the mechanical properties and fatigue life of large components and building structures. The machine is equipped with corresponding test loading attachments to achieve typical concrete or steel structures such as beams, columns, plates, frames, sleepers, rails and their welded joints, bridges (full-scale), steel trusses, rubber bearings, railway fasteners Static loading of assembly, steel wire anchors, cables, large deformed springs, slings, rigging, ring joints, automobile chassis, automobile front and rear axles, locomotive bogies, large-diameter precision-rolled rebar, highway pavement structures, etc. Dynamic load performance test and fatigue life test.
Mainly consists of:
1 set of pulsating hydraulic station
1 frequency conversion main motor
1 full digital measurement and control system
1 set frequency conversion controller, 500kN high response and low damping
3 actuators
1 Advance tech industrial control computer system
1 data acquisition and processing system
1 pulsating fatigue test system software
1 set of three-station portal-type reflexive force loading frame with maximum load of 1500kN,
Mainly consists of:
1 set of pulsating hydraulic station
1 frequency conversion main motor
1 full digital measurement and control system
1 set frequency conversion controller, 500kN high response and low damping
3 actuators
1 Advance tech industrial control computer system
1 data acquisition and processing system
1 pulsating fatigue test system software
1 set of three-station portal-type reflexive force loading frame with maximum load of 1500kN,
Maximum static test force
| 3 * 500kN |
Maximum dynamic test force | 3 * 500kN |
Test force accuracy | ± 1% |
Dynamic test force fluctuation | ≤2% Fs |
Dynamic test load asymmetry coefficient | 0.2-1.0 |
Working frequency range | continuously adjustable 2-8Hz |
The maximum pulsating displacement of the pulsating hydraulic stationsliding friction pair
| 800 ml / time, steplessly adjustable; the main bearing structure adopts high load-bearing, high wear-resistant, anti-impact sliding friction pair; |
Spindle speed control | Full digital electromagnetic stepless speed regulation, stable speed accuracy of 0.1%, speed change rate of 0.1%, speed measurement accuracy of 1rpm |
Pulsing displacement measurement indication | Proprietary anti-interference pulsating displacement electromagnetic measurement digital display technology, maximum capacity 103 |
Test times measurement and control: | anti-interference electromagnetic measurement technology 1 time / revolution, maximum capacity 108 preset shutdown, automatic storage after power failure |
pulsator main motor power | 22kW |
Lubricant pump motor powergear motor | 1.5kW high-speed gear motor |
Working oil pump motor power | RK-38 radial piston oil pump motor 1.5kW |
Number of fatigue test channels | 5, the pipeline is equipped with a switching device, which can perform single-point or multi-point simultaneous fatigue tests |
** Actuator to be consulted separaely.
Maximum static test force
| 3 * 500kN |
Maximum dynamic test force | 3 * 500kN |
Test force accuracy | ± 1% |
Dynamic test force fluctuation | ≤2% Fs |
Dynamic test load asymmetry coefficient | 0.2-1.0 |
Working frequency range | continuously adjustable 2-8Hz |
The maximum pulsating displacement of the pulsating hydraulic stationsliding friction pair
| 800 ml / time, steplessly adjustable; the main bearing structure adopts high load-bearing, high wear-resistant, anti-impact sliding friction pair; |
Spindle speed control | Full digital electromagnetic stepless speed regulation, stable speed accuracy of 0.1%, speed change rate of 0.1%, speed measurement accuracy of 1rpm |
Pulsing displacement measurement indication | Proprietary anti-interference pulsating displacement electromagnetic measurement digital display technology, maximum capacity 103 |
Test times measurement and control: | anti-interference electromagnetic measurement technology 1 time / revolution, maximum capacity 108 preset shutdown, automatic storage after power failure |
pulsator main motor power | 22kW |
Lubricant pump motor powergear motor | 1.5kW high-speed gear motor |
Working oil pump motor power | RK-38 radial piston oil pump motor 1.5kW |
Number of fatigue test channels | 5, the pipeline is equipped with a switching device, which can perform single-point or multi-point simultaneous fatigue tests |
** Actuator to be consulted separaely.
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