Parking brake fatigue test machine

Parking brake fatigue testing machine WSD-8428

one. Scope of application: This machine is used to simulate the damage of the brake device after a certain mileage and a certain number of braking of the cart in the implementation process. When the brake device of the test object is damaged, the platform will automatically stop, automatically record the test times, and keep the test results.

two. Test principle: ISO 7176-8:1998 and relevant standards of the national standard

Three. Test requirements:

Brake performance test:

a. Vertical load 500N±2%

b. The operating platform of the testing machine can be lifted and lifted ≥6º

c.. At the same time, a 40N±2% pull or 60N±2% thrust is applied

d. Disable the block retention period for 1 minute

Parking brake test:

a. Vertical downward load 500N±2%

b. The operating platform of the testing machine can be lifted and lifted ≥6º

c. The retention time of the wheeled walking frame is 1min

1 Frequency: no more than 0.5HZ.

2 Load: not more than 1.5 times the maximum operating force.

Mode of operation

Operating force (N)

hand

60 + / - 5

Foot (press)

100 + 10

Foot (pull)

60 + / - 5

finger

13.5 + / - 2

3 Cycles: 60,000 times.

4 After each brake engagement and release, the wheel has a certain amount of movement.

You need to write out the working principle of the brake fatigue tester in detail, and the role of each actuator.

5 Required fixture: brake rotation center search device

Four. Technical parameters:

Load cell capacity: 100KGF

Load cell resolution: 1/10000

System force measurement accuracy: ±1%

Loading frequency: 0-- 0.5Hz Adjustable

Number of tests: 0-999,9999 can be set

Setting mode: LCD touch screen

Display mode: LCD digital display

Control mode: plc automatic control

Stop mode: Automatic stop when the number of tests is reached

The specimen is automatically shut down when damaged

Power-off memory: with power-off memory function, the next test will continue automatically