圆草捆自动缠网装置设计与试验

Self-wrapping Net Mechanism for Round Baler

设计了一种圆草捆自动缠网装置,该装置采用凸轮机构作为传动和控制机构,使用摆动连杆机构作为凸轮从动件,对引网作业机构、缠网计数机构和切网作业机构进行控制,实现了对圆草捆缠网、记录缠网圈数和切网的自动作业。性能试验结果表明:该装置可对宽度为80～120 cm的干草捆或宽度为80～100 cm的青贮圆草捆进行自动作业,装置对1.2 m宽干草捆缠网3圈、对1.0 m宽青贮玉米圆捆缠网4圈时,作业性价比最高。

A net self-wrapping mechanism for round baler was designed. The cam was used as transmission and control mechanism. The oscillating linkage was used as cam follower. The traction unit, wrapping unit and cutting unit were controlled for wrapping, recording and cutting. The wrapping performance experiment showed that this device could wrap dry bales of 80 - 120 cm width and silage round bales of 80 - 100 cm width. The most cost-effective operation was wrapping dry bale of 1.2 m width in three laps or wrapping silage round bale of 1.0 m width in four laps.