黑龙江嫩江农业机械厂研制生产的１ＹＺ－７．３型折叠式镇压器，已投入批量生产，该机具有结构新颖、维修使用方便、生产率高和通过性能好等特点。 该机由前镇压轮总成、侧镇压轮总成、牵引架、行走轮总成、前梁焊合、侧梁焊合、油缸、油管和快速接头等组成。其镇压轮采用轴承 The 1YZ-7.3 type folding press developed and manufactured by Nenjiang Agricultural Machinery Factory of Heilongjiang has been put into mass production. The machine has the features of novel structure, convenient maintenance and use, high productivity and good passing performance. The machine consists of a front crushing wheel assembly, a side pressure roller assembly, a towing frame, a traveling wheel assembly, a front beam welding, a side beam welding, a fuel tank, an oil pipe and a quick connector. Its suppression wheel using bearings