Auto and rail
Rail transit fastener assemblyElectro-hydraulic servo rail fastener static and dynamic test system
The main components of this test system: it is mainly composed of loading frame, servo actuator (vertical, horizontal), servo hydraulic oil source, test attachment, all digital dynamic servo controller, computer software system and so on.
The technical advantages of this test system:
a. System loading frame: high rigidity steel structure.
b. Servo actuator: high frequency, low friction, double acting piston structure.
c. Load sensor: high precision load sensor (HBM) is used to measure the force without inertia.
d. Hydraulic servo oil source pump group: imported high quality low noise pump group.
e. Servo valve: a wide range of speed regulation, high frequency servo valve.
f. Full digital closed-loop measurement control system composed of Ovid LeadTest digital dynamic servo controller. Can automatically and accurately measure and control test machine, unloading and loading test of the whole process, you can dynamically test can also be static test.
g. Test software: using Test_DSC2.0 dynamic test software Orville independent research and development. C# language programming, powerful, all the test through the computer screen operation, clear interface to facilitate the establishment of the test, set up and operate.
Test attachment
Test attachment includes: longitudinal resistance, buckle pressure, static stiffness test for fastener assembly with fastener assembly fixed bearing and fixed bearing fatigue test, horizontal actuator fixed bearing, longitudinal resistance test of fatigue test, pressure test button attachment, attachment, static stiffness test report etc..
* Longitudinal resistance, buckling pressure, static stiffness test using the same fastener assembly fixed support.
* The static stiffness test can be carried out when the fastener is assembled and fixed on the fatigue test.
* Fatigue test attachment and static stiffness test attached to the vertical actuator attached to the seat, the use of bolt connection, easy to change, does not affect other parts.
* The fatigue test of attached 26 degrees and 38 degrees two test report.
* Buckle pressure test auxiliary appliance installed on the static stiffness test auxiliary appliance, reduce disassembly links, reduce handling weight.
The attached diagram test are as follows:
Functional characteristics
* Controller for the company's own R & D, convenient for users to test the upgrade, after-sales service in a timely manner.
* The controller is a computer management, two dynamic measurement and control card, convenient for later test expansion.
* A 8 channel deformation (displacement) measurement card, equipped with 6 small displacement sensor, used to measure the deformation of the member (displacement), the test can be used between each other.
* Computer plug-in (i.e. computer bus design) digital closed loop control.
* With a computer control to complete the entire test process, the operation is completed by the keyboard and mouse.
* Signal generator frequency: 0 ~ 1000Hz.
* Sample update frequency: 5000Hz.
* Control waveform: sine wave, triangle wave, Fang Bo, oblique wave, and combined waveform, and the external signal input.
* Control mode: force and displacement closed loop control.
* Perfect hydraulic control function: to control the pump station on / off, high / low voltage switch, etc..
* The perfect software self-test function, prompt the breakdown place, does not need the manufacturer to carry on the maintenance, only needs to replace the corresponding function card in the computer, the maintenance is simple and convenient.
* During the test, the dynamic load, the test frequency, the fatigue frequency, etc..
* After the test is completed, the static stiffness and dynamic stiffness of the specimen are calculated automatically.
* With the test force - time, displacement - time, deformation - time, test force - displacement, test force - deformation curve and can be real-time switching curve type.
* Perfect protection and alarm function: high temperature, low level of oil tank, oil filter blockage.
* The complete database software interface for users to use, software upgrades can only be sent by mail CD or E-mail.
Main interface
Based on standard
◎ [ The test method of the high speed railway fastener system ]
