PC control bicycle crank sprocket assembly fatigue testing machine

Pc-controlled crank sprocket assembly fatigue testing machine WD-8707

First, the test principle: the simulated bicycle in the actual riding process, the rider will continue to step down the pedal, the trampled force will be transferred to the crank assembly, the crank assembly will continue to withstand the external force. The quality of the crank assembly is related to the alternating external forces of the entire car. The quality of the front fork is related to the safety and convenience of the whole car. The testing machine is designed according to ISO 4210-8:2014, EN14764, EN14766 and EN14781 fatigue test standards. The whole test system is automatically controlled by computer, and the force application system adopts force closed-loop control. When the test force applied on the frame reaches the set force, it automatically returns and reverses.

2, according to the standard: ISO 4210-8:2014 4.6, ISO8098-2014

Iii. Test method:

1) During the test, the crank assembly is fixed on the test machine in accordance with the standard method, and the height position of the crank can be manually adjusted to adapt to the position of the loading cylinder;

2) Fix the crank assembly on the special fixture, adjust the left and right position of the loading cylinder, so that the loading fixture can be just assembled on the foot shaft, and fix the various parts.

3) Set the test force value and number of test requirements on the computer.

4) Adjust the maximum allowable deformation of the crank assembly, and the machine will automatically stop testing after exceeding this deformation;

5) Start the test procedure to start the test, the test reaches the set number or the specimen is damaged, the machine will automatically stop the test and retain the test results.

Four, the main technical parameters:

1. Sensor capacity: 5000N

2. Load element resolution: 1/10,000

3. Test force: 600N-2000N can be set

4. Force control accuracy: 0-5% (dynamic)

5. Test frequency: 0-5Hz (adjustable)

6. Test times: 0-999,999 times can be set

7. Loading mode: pneumatic loading

8. Air pressure adjustment mode: SMC proportional valve

9. Equipped with displacement sensor to measure the displacement during the test

10. Database function: automatically record each measurement result to facilitate analysis and provide evidence

11. Equipped with fixture: double-sided 45° loading fixture

Single side 30° loading fixture

12. Stop mode: The test piece breaks the system or automatically stops beyond the displacement

13. The solenoid valve is equipped with a guard to prevent damage.

14. With pressure regulating tank, better stable working pressure, so that the loading force is more stable.

15. Pneumatic components brand: Japan SMC or Germany FESTO

16. Power supply: 220V 5A

17. Air source: Pressure 0.7MPa gas flow 300L/MIN

18. The main body of the machine is steel component, high strength, not easy to deformation.

19. The base of the machine is solid steel with good stability, equipped with reinforcing bars and flat feet for water transfer.

20. Electrostatic spraying of machine appearance, electroplating of other parts, high rust prevention ability, beautiful appearance.

5, computer: brand computer DELL OptiPlex 360 or Lenovo equivalent

The configuration is as follows:

Processor: OptiPlex(TM)360 MT includes Intel (R) Pentium (R) dual-core processor E2200

Key Disk: USB port entry-level keyboard (English) - Black

Mouse: Dell (TM) USB optical mouse (black)

The Computrace Disable Info Mod is available in the system

Project included in system: Integrated Broadcom(R) 10/100/1000 LOM(BCM5787)

The project is already included in the system: Integrated ADI-1984 high definition audio

Items are already included in the system: Intel (R) G31 Express chipset

The project is already included in the system: Integrated Intel (R) Graphics Media Accelerator 3100

Memory: 1GB NECC dual-channel DDR2 667MHz SDRAM memory

Optical equipment 1:16X MaxDVD-ROM Drive with RAM function

Display: 19" widescreen LCD display

Diagnostic CD: OptiPlex diagnostic CD suitable for 32-bit operating systems

SATA Hard Drive: 160GB SATA hard drive (7200RPM - 8MB cache)

OPERATINGSYSTEM: The latest dedicated fatigue testing machine testing software under WINDOWS, the software itself contains detailed operating instructions, and a set of detailed operating instructions are attached. The computer can be compatible with OS/2, NOVELL, UNIX, WINDOWSNT and other networks and multi-users, and the operating system is suitable for various software packages compatible with PCS. Simplified Chinese interface, Chinese and English test report.

List machine: HP color list machine, can automatically print the maximum value, break point and other functions

Six, microcomputer PC online function description:

1. Signal conversion controller:

⑴. Load Sensor [Sensor]

(2) Position sensor

(3) Signal Conversion Collector [Data Collector]

2. Basic functions Perform the dynamic fatigue testing machine test program, the following information can be obtained:

1) The most powerful

2) Current force

3) Test frequency

4) Power-time graph

5) Displacement-time curve

Seven, equipment details:

² One host

² 2 sets of fixtures

² One computer (including host and monitor)

² One copy of instructions

² One certificate of qualification

² One warranty card