介绍了 YT-2系列液压可控停车器的基本工作原理。并从理论上分析 ,以此停车器作为铁道系统的调车线尾部防溜、制动设备在各种情况下的制动效果。考虑到铁路调车作业中的各项要求 ,对设备的布控提出了能达到最佳效果的建议 ,为使站场调车实现自动化提供理论依据 The basic working principle of YT-2 series hydraulic controllable parking device is introduced. And from the theoretical analysis, as a parking brake system as the shunting line tail anti-slip, brake equipment in various circumstances the braking effect. Taking into account the railway shunting operations in the various requirements of the equipment distribution and control proposed to achieve the best results in order to make the yard shunting to provide a theoretical basis for automation