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针对配置电液挡位控制变速器的工程机械,设计开发自动动力切断制动系统。该系统采用二极管或门电路,可以实现主机在行车制动和停车制动时的自动动力切断,满足停车制动系统兼做辅助制动的要求,同时还可防止在停车制动状态下,因误操作导致车辆行驶对动力和传动系统造成损害的隐患。该系统结构简单,动作精度和可靠性高,可用于由气压或液压驱动的制动系统。
For the construction machinery equipped with an electro-hydraulic range control transmission, an automatic power cut-off braking system was designed and developed. The system adopts diode or gate circuit to realize the automatic power-off of the host during the service brake and parking brake. It can meet the requirements of the parking brake system as auxiliary brake, and can also prevent the parking brake from being Misoperation causes hidden dangers caused by vehicle damage to power and transmission systems. The system is simple in structure, high in motion accuracy and reliability, and can be used in pneumatic or hydraulically actuated braking systems.