起重机吊钩总成如附图所示,其主要由滑轮1、滑轮轴2、防脱钩装置3、钩体4、横梁5、轴承6、组合螺栓7、圆螺母8、导绳块9和夹板10等组成。为保证起重机吊钩正常使用,起重机操作人员、维修人员要视情对这些部件进行安全检查,检查内容包括3项:一是核对技术文件,二是检查外观与表面裂纹,三是测量磨损量、开口度、扭转变形量等。1.核对技术文件新起重机投入使用前,操作人员应检查吊钩总成有关的技术文件。其中吊钩总成的标牌所标额定 Crane hook assembly as shown in the figure, which mainly by the pulley 1, the pulley shaft 2, the anti-decoupling hook device 3, the hook body 4, the beam 5, the bearing 6, the combined bolt 7, the round nut 8, 10 and other components. To ensure the normal use of crane hooks, crane operators, maintenance personnel, as appropriate, for the safety inspection of these components, the inspection includes three items: First, check the technical documents, the second is to check the appearance and surface cracks, the third measure wear, Opening degree, torsion deformation and so on. 1. Check the technical documents New crane before it is put into operation, the operator should check the hook assembly related technical documents. Hook assembly which signs the standard rating