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要正确地使用机器,首先应该了解机器,弄清楚它的组成以及各部分有什么特性和作用。机器是由许多零件和部件组成的。按照零、部件在机器中所起的作用不同,可以分为动力、传动、操纵、安全、工作和机架(体)等几大装置(机构)。这些装置按一定要求装配在一起,就构成了一台机器。图1表示混凝土
To use the machine correctly, you should first understand the machine, figure out its composition, and what features and roles each part has. The machine is made up of many parts and components. According to the different roles played by zero and components in the machine, they can be divided into several major devices (institutions) such as power, transmission, operation, safety, work, and rack (body). These devices are assembled together according to certain requirements and constitute a machine. Figure 1 shows concrete