Vehicle shock absorber dynamic and static testing machine

Microcomputer controlled electro-hydraulic servo automobile shock absorber dynamic test system, used for testing automobile cylinder shock absorbers, shock absorber stands, cab shock absorbers, engine mount cushion assemblies, < engines Dynamic diagram test and speed characteristic test of front wedge support assembly, etc.
The test system is loaded through computer control, and the electro-hydraulic servo actuator achieves fast and high-response actions. According to the preset test procedures that adapt to the requirements of the corresponding standards, the following tests can be completed:
, damping test, Determine the damping coefficient, damping angle, etc. of the shock absorber
, dynamometer test, draw the dynamometer diagram of the shock absorber
Speed characteristic test, measure the shock absorber at each speed point at different loading speeds Temperature
, temperature decay test (optional function), after measuring the heating and cooling of the shock absorber (external environmental box, optional by the user, standard configuration does not have this device), compare the resistance attenuation of the shock absorber and Automatically calculate the temperature decay rate.
This test system adopts the electro-hydraulic servo controller (br) with microcomputer-controlled electro-hydraulic servo fatigue test control technology as the core, which is patented by Lichuang Company and protected by the State Intellectual Property Office (patent number:).
The test software works in a Chinese environment, with powerful data processing functions, automatic saving of test conditions and test results, and display and printing of random group test data, test curves, and test reports that comply with relevant national standards.
2. Main technical parameters
, Maximum test force:
, Test force measurement accuracy:
Maximum displacement of electro-hydraulic servo actuator:
, Deformation ( Displacement) measurement accuracy: The measurement accuracy is the indicated value
, Dynamic test waveforms: sine wave, triangle wave, square wave, ramp wave, sawtooth wave and random wave
, Test speed:./Vibration speed control accuracy: Less than
, test control performance index:
. Control mode: displacement, load control mode.
. Computer closed-loop system that can run the software platform, precise control, self-calibration, automatic zero adjustment, automatic reset, fast and accurate data transmission. It has peak and amplitude phase compensation functions, linear correction of measured values, and computer adjustment.
.3 The control system has self-diagnosis and alarm functions when encountering faults. The system can save data and self-protection devices in the event of a sudden power outage, overload protection, upper and lower limit protection and control of force/displacement/deformation, Temperature protection and other functions, the controller can soft start and stop to reduce impact, breakage protection.
, Software functions:
. Test control software adapted to the system platform, the computer displays the static load, dynamic load, and number of tests in real time during the test. Dynamically display real-time curves, storage (the time period can be set arbitrarily for automatic storage of data and graphics at each test stage), output test reports (test data can be imported into, and other software) and other functions, and the test data and graphics can be processed as a whole or Partial infinite magnification display, test data is stored in database format, and the stored content can be reproduced.
. It can calculate and display the dynamometer diagram of consecutive speeds and the relationship curve between resistance and speed at the same time. It can calculate and display the relationship curve between displacement and speed in one cycle when the shock absorber is moving at a single speed (i.e. -) Graphs can calculate and display the continuous change of sliding resistance under different lateral forces. Various analysis results can be stored and recalled very conveniently. The compression and recovery resistance of the shock absorber can be automatically determined according to the given tolerance. The qualified conditions can be automatically calculated. and displays the resistance value at the maximum compression, restoring force and absolute maximum displacement (i.e. the point on the axis), and gives the error value between the two to automatically calculate the shock absorbing energy at each speed point.
, The installation height of the shock absorber: ~
, The number of stations for installing the shock absorber: various (according to the user's order agreement)
, It has safety measures such as overload, fracture, and displacement protection.
It has the function of setting random wave to simulate vehicle driving on the road.
Users can choose environmental test devices
b (shock absorber power display and speed test control software developed by Lichuang Company)