Several typical uses:
The double-diaphragm spring brake air chamber consists of two independent diaphragm air chambers, which are independently operated by the service brake and parking brake or emergency brake elements, which are used to provide braking force to the wheels.
working principle:
1. During service braking, the compressed air enters cavity a through port 11, acts on diaphragm b, compresses spring c, push rod d pushes out, and the pressure acting on diaphragm acts on the adjusting arm through the connecting rod. The wheels generate braking torque.
2. During parking and emergency braking, the manual valve makes the compressed air in the E cavity completely or partially released through the 12 ports, and the energy storage spring g also releases the energy completely or partially, through the diaphragm f, push rod kd and The brake adjustment arm acts on the wheel brakes.
3. When driving normally, place the loosening bolt h in hole A and tighten it with a nut. When mechanical loosening is required, place the loosening bolt into the tray i, rotate it 90 degrees, and then unscrew the loosening bolt to achieve no compressed air. Manually engage and disengage the brake.
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