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1.改进原因门座式起重机在港口装卸货物过程中,需要频繁行走。安装在门座式起重机下部的主电缆卷筒随着门座式起重机的行走,对电源主电缆进行同步、准确地收、放。我单位门座式起重机在作业过程中,经常由于主电缆卷筒极限限位装置失效,造成门座式起重机因行走距离超过电缆长度,导致主电缆被拉断,由此产生人员触电安全隐患。为此,我们决定对主电缆卷筒极限限位装置进行改进。2.改进方案(1)现状分析改进前我单位25t、40t级的门座式
1. Improve the reasons Portal cranes in the process of loading and unloading of goods in the port, you need to walk frequently. The main cable reel mounted on the lower part of the portal crane is synchronized with the main power cable as the gantry crane travels and collects accurately. In the process of operation, the door crane of our unit frequently causes failure due to the failure of the limit device of the main cable reel, resulting in the main cable being pulled off due to the distance traveled by the portal crane exceeding the length of the cable, thereby posing a potential safety hazard of electric shock to persons. For this reason, we decided to make improvements to the main cable drum limit stop. 2. Improve the program (1) Analysis of the status quo to improve my unit 25t, 40t-class door