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HB-3000型布氏硬度计的杠杆机构是由大杠杆、小杠杆、吊架、压轴等零件组成。其中大杠杆臂比为1:12.5,小杠杆比为1:4,总杠杆比为1:50。负荷(砝码)是借杠杆系统而施加在试件上的。在大杠杆的长臂上有吊环(吊架),在吊环上有可更换的砝码。按照HB-3000型布硬度计维护保养的规范,硬度计停止试验后,应将砝码与吊架取下来。硬度计绝大多数都是安置于靠墙的水泥平台上(一般高度在550～750mm),在工厂特别是冶金和机械生产厂中,这类布氏硬
HB-3000 Brinell hardness of the lever mechanism is a large lever, a small lever, hangers, finale and other components. One large lever arm ratio of 1: 12.5, a small lever ratio of 1: 4, the total lever ratio of 1:50. The load (weight) is applied to the test specimen by the lever system. There are rings (hangers) on the long arm of the large lever with replaceable weights on the rings. According to HB-3000 cloth hardness tester maintenance norms, hardness tester stop the test, the weights and hangers should be removed. The vast majority of hardness testers are placed on cement platforms against the wall (typically 550 to 750 mm in height). In the metallurgical and machinery manufacturing plants, such Brinell