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四、行走系 (一)从动桥 1.概述 该机具有无架式拖拉机一般型式的刚性悬架可变轮距从动桥。其结构型式见图27。 前轴托架为纵断面呈“Π”型的整体铸铁件。前轴的主副套管为椭圆断面,主套管两端的下缘断开,由螺栓联结、包住和夹紧副套管。副套管的下端焊有卡槽,改变其安放在螺栓上的位置,便能有级地调节轮距,此时对转向油缸在主套管上的安装孔位也要作相应调
Fourth, the Department of walking (a) from the bridge 1. Overview The machine has a general type of rackless tractor rigid suspension variable pitch driven bridge. The structure of the type shown in Figure 27. Front axle bracket for the longitudinal section was “Π” type of the overall cast iron. The primary and secondary casing of the front axle are oval sections, the lower ends of both ends of the primary casing are disconnected, and are connected by bolts to cover and clamp the secondary casing. The lower end of the secondary sleeve is welded with a slot, and its position on the bolt is changed so that the wheel track can be adjusted step by step. At this time, the mounting hole of the steering cylinder on the main sleeve should also be adjusted accordingly