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在履带式拖拉机上加装推土设备,就成为推土机了。例如第一讲中所说的ДТ-54型拖拉机,加装推土设备后,就叫作Д-159Б型推土机;С-86型拖拉机,加装推土设备后,就叫作Д-157或Д-271型推土机。Д-157型推土机(如图1)的构造如下:在拖拉机的前面装有一个推土剷刀(1),后面安着一个绞盘(5),在绞盘与铲刀之间有钢素和滑轮(4)把它们联系起来。(2)是铲刀刀片;(3)是铲刀支架。
In crawler tractor installed bulldozing equipment, it became a bulldozer. For example, the ДТ-54 type tractor mentioned in the first lecture is called Д-159Б bulldozer after installing bulldozing equipment; С-86 type tractor, after adding earth moving equipment, it is called Д-157 or Д-271 bulldozer. The Д-157 bulldozer (Figure 1) is constructed as follows: A dozer blade (1) is mounted on the front of the tractor and a capstan (5) is mounted on the back of the tractor with steel elements and pulleys (4) Link them. (2) is a blade blade; (3) is a blade holder.