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1.港口装卸机械的现状及它对 CAD 技术的要求港口装卸作业涉及到物种、物流量、船型、码头型式等各种因素,因此港口装卸机械(以下简称港机)是一种种类繁多,但生产批量又较小的起重运输机械。在多数情况下,港机由机构及其传动装置、金属结构和电气设备三部分组成。为了使设计规范化,苏联、西德、日本、英国、欧洲搬运协会以及美国的起重机制造厂协会等都先后制定了本国或本系统的设计规范。我国的起重机设计规范也已作为国标正式公布,然而根据这些规范进行一台起重运
1. Port loading and unloading machinery status and its requirements for CAD technology Port loading and unloading operations involve various species, logistics volume, ship type, terminal type and other factors, so port handling machinery (hereinafter referred to as port machine) is a wide range of, but Production volume and smaller crane transport machinery. In most cases, the port machine consists of three parts: the mechanism and its transmission, the metal structure and the electrical equipment. In order to standardize the design, the Soviet Union, West Germany, Japan, the United Kingdom, the European Association of Porters and the Association of Crane Manufacturers in the United States have all formulated the design norms for the country or the system. China’s crane design specifications have also been officially announced as a national standard, however, according to these norms of a lifting