| 摘要 |
A brake system of an aerial platform lift truck is provided to improve braking efficiency and safety of a brake by controlling a parking brake using a brake interlock structure and braking urgently in an emergency. The brake system of an aerial platform lift truck contains: an interlock brake master valve(140) installed on a supply line supplied with compressed air to brake a truck, connected to a parking brake chamber and functioning as a controlling valve of an interlock; an interlock brake control valve(150) supplied with the compressed air whose flow rate is controlled by a regulator(130) and interlocked to the interlock brake master valve; an interlock brake PTO(Power Take Off) valve(160) interlocked to the interlock brake control valve, supplied with the compressed air whose flow rate is controlled by the regulator and connected to a PTO switch to take input signals; an interlock brake override valve(170) interlocked to the interlock brake control valve, supplied with the compressed air whose flow rate is controlled by the regulator and returning to brake as an auxiliary valve of an interlock brake; and a main valve(110) and a filter(120) installed on a supply line of compressed air to control the flow of compressed air and to filter the compressed air. |
