Product Introduction:

1. The QTPJ-5 automobile shock absorber indicator fatigue comprehensive testing machine is mainly used for indicator testing and fatigue life testing of cylindrical shock absorbers used in motor vehicles such as cars, armored vehicles, tricycles, and motorcycles. The whole machine has a reasonable structure, simple and reliable, accurate and convenient adjustment of test space and test stroke; The specimen clamping is convenient and reliable; The whole machine runs smoothly and is easy to maintain and upkeep.

2. The speed of this shock absorber dynamometer is 1m/s, and speed parameters can be set freely below this speed.

Product Structure:

1. Host

The host is mainly composed of four parts: rack, mechanical loading mechanism, transmission mechanism, and fixture. The rack consists of columns, workbenches, excitation tables, upper crossbeams, screw lifting mechanisms, and bases. The columns, workbenches, excitation tables, upper crossbeams, and screw lifting mechanisms are installed together and stably mounted on the base; The tested shock absorber is installed between the excitation table and the worktable through a fixture, and the amplitude is adjusted to meet the requirements of specimens of different sizes and specifications. By replacing the fixture, the requirements of specimens with different installation methods are met.

2. Loading mechanism

The loading mechanism is a mechanical structure mainly composed of a crank connecting rod mechanism, which converts the rotational motion of the motor into linear reciprocating motion in the vertical direction; By adjusting the eccentricity of the slider, the distance of linear reciprocating motion can be adjusted to achieve the required test stroke of the test piece.

3. Transmission system

The transmission mechanism consists of an electromagnetic speed regulating motor and a flywheel. By adjusting the motor speed, the test frequency can be freely adjusted within the range of 0.2-2Hz.

4. Experimental equipment

The test fixture is designed and produced based on the structure of the shock absorber, which is the sample. It ensures the accuracy of the experiment and allows for quick loading and unloading.

5. Sensor:

5.1 Force sensor (DC) with a range of ± 10kN and a filtering capacity of 150%. Place it at the front end of the actuator.

5.2 Before leaving the factory, the sensor calibration is completed.

Product Features:

1. The amplitude and frequency of the shock absorber can be freely adjusted.

2. Digital display of vibration frequency and frequency.

3. The preset test times automatically shut down, resulting in higher efficiency.

All digital controller:

1. The main configuration components of the all digital controller are:

1.1 Computer (Business Machine, 19 "LCD Monitor, Windows Operating System)

1.2 Two channel signal conditioning unit (test force, displacement)

1.3 Other necessary I/O input/output units

1.4 Dynamic testing software and shock absorber testing data processing software

2. Main technical specifications of the controller

A fully digital hydraulic servo controller based on PCI bus

2.1 Control mode: Full digital PID closed-loop control for force, displacement, and deformation, with smooth and worry free switching of control modes

2.2 Main test waveform: sine wave;

2.3 Test signal measurement resolution: ≥ 1/200000, indication accuracy 0.05FS

3. Software testing system:

3.1 Windows operating system, fully Chinese operating interface;

3.2 Adopt high-speed data acquisition technology to achieve multi-channel high-speed data acquisition;

3.3 The computer screen displays the test curve and various test parameters, such as force/displacement time relationship curve, force displacement relationship curve (dynamometer), peak and valley values of test parameters (force, displacement), etc;

3.4 The system has file operation function for storing test curves and test data; Meanwhile, experimental data can be stored in ASCII code format, and users can use commercial data processing software for secondary data processing;

3.5 Support printing test reports with printers;

Product parameters:

1. Test force 5000N

2. Test speed 10-200r/min

3. Test stroke 100mm

4. Linear velocity 1.0m/s

5. Test accuracy 1% FS

6. Counter capacity 9 * 10 ^ 9

7. Counting shutdown accuracy ± 1

8. Outer diameter of the test piece is 150mm (fixtures can be designed)

9. Cylinder stroke 30mm

10. The installation quantity of shock absorbers is 1/2 (regular 1)

11. Test cycle 3-6 seconds per piece

12. Sample length 600mm (optional)

13. Power supply voltage (three wire four phase system) 380VAC 50Hz

14. Motor power 7.5 kW

15. The quality, assembly quality, and appearance quality of the electrical equipment of the testing machine shall comply with GB/T2611-2006

General Technical Requirements for Testing Machines