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在所有连接中,螺纹连接是应用最广泛的。螺纹连接可以获得很大的连接力,又便于装卸。通过标准化,实现了大批量生产,成本低而价格便宜,并具有互换性。因此,在机械和结构中广泛采用螺纹连接,螺纹紧固件已成为必不可少的机械零件。螺纹连接包括螺栓、螺钉和螺柱连接等。目前起重机金属结构中的连接有焊接连接、螺栓连接、铆接连接和销轴连接。螺栓连接是一种可拆卸的连接方法,主要用于结构安装连接,是起重机中仅次于焊接连接的连接方式。1螺栓连接的重要性起重机金属结构是起重机的承载部分.起重机的安全可靠性很大程度上取决于金属结构的安全可靠性,而金属结构的连接是金属结构的重要组成
Threaded connections are the most widely used in all connections. Screw connection can get a great connection force, but also easy loading and unloading. Through standardization, high-volume production is achieved with low cost and low price, and is interchangeable. As a result, threaded connections are widely used in machinery and construction, and threaded fasteners have become indispensable mechanical parts. Threaded connections include bolts, screws and stud connections. At present, the connections in the crane’s metal structure are welded, bolted, riveted and pinned. Bolt connection is a kind of detachable connection method, mainly used for structural installation and connection, which is the second only connection of welding connection in crane. The Importance of Bolting The crane’s metal structure is the load-bearing part of the crane.The safety and reliability of the crane depends largely on the safety and reliability of the metal structure, which is an important component of the metal structure