介绍了推车机的主要技术特征、井口车场线路布置与调车程序以及使用效果，并对今后改进设计提出了意见。
Main technical features . layout of shaft yard, shunting sequence and applying effect are introduced and some suggestions of further improvements are proposed.
为了提高副井提升井口、井底车场操车自动化程度，设计了一种新型液压推车机，提高了推车机的安全性和工作效率。
A new-type hydraulic pusher is designed in order to improve the automation of tram operation in coal mine, which rises the reliability and efficiency of the original cage pusher.
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