Electric wire rope hoist maintenance to ensure the reliability and life of electric hoist wire rope hoist, hoist must be lubricated regularly and maintenance. Is a key component of the electric wire rope hoist lifting mechanism, which directly affect the safe use of hoists, often due to wear, breakage and scrap, it must always be in a good state of lubrication and regular inspection of its fixed ends. The following occurs, the rope should be scrapped:. A occurs intensive broken wire or a strand break; B even if there is no obvious yarn breakage, but the rope diameter wear or corrosion reaches nominal 7% of the diameter; c rope breaking numbers. reaches a predetermined be scrapped. In the daily inspection, monthly inspection, inspection, and who do not meet the requirements shall be promptly repair, adjustment or replacement parts. Maintenance should do the following requirements: * When the repair and replacement parts should be the same as the original material properties; * when structural parts to be welded, the materials used, welding and weld quality are in line with the quality standards of the original structure; * electric hoist in working condition When allowed to carry out maintenance and repair. Comparison of domestic and foreign wire rope hoist wire rope hoist by driving means (motor), transmission (reducer), brakes, extract device (hook, pulley, reel, wire rope), with its small size, light weight , simple operation, widely used features, are mass-produced standardized lifting equipment. Domestic production electric hoist more than 20 million units, mostly 1 ~ 10t lifting capacity of CD M / D products, the working level A4, supporting becoming single beam, suspension, arm, and so-called dual-crane. Electric wire rope hoist from the weight of developed countries may be 100, t work level A5 ~ A7 class, designed and manufactured to hoist double girder crane, the 50 t following specifications basically replaces the bridge crane. Currently wholesale electric wire rope hoist, electric hoist products at home and abroad in structural characteristics, performance, configuration and so on, there are still some differences of quality electric hoist, through the comparison of these products at home and abroad wire rope hoist, expressed its discrepancy. As shown in Table 1, 1964, the joint design of CD M / D hoist, designed to improve after 1975, despite the various manufacturers varying degrees of improvement, does not absorb any of the world in the process of technological development. Including the 1983 introduction of the German company Stahl AS wire rope hoists, goods from the contemporary level of developed countries, there are still gaps in decades. The following table to to show through. Quality wire rope hoist | Xinyu lifting | wire rope hoist by the Tianjin Qingyuan Xinyu Lifting Limited. Qingyuan Xinyu Crane Limited (xyqz0312.1688.com) to provide "chain hoists, lever hoist, electric hoist, multi-functional electric hoist, lifting machine indoor and outdoor," other business, the company has "Shanghai Yan "brands. Focus on engineering, construction cranes and other industries, have higher visibility in Baoding, Hebei. Welcomes inquiries, contact: Zhangsong Song.