| 摘要 |
A bearing of a breaking device tool is provided to install a bearing busing in a bearing space easily by making a space between the bearing space and the bearing bushing. A bearing of a breaking device tool comprises a frame(10), a tool(6), and a percussion device. The percussion device has a percussion element with which compression stress pulses may be generated in the tool, and transmits them further to a material to be broken. A method for fitting the breaking device tool with the bearing includes the steps of: arranging around the tool at least one bearing bushing(14) having an outer and inner peripheries; attaching the bearing bushing immovably in an annular bearing space(25) around the tool; fitting the tool with the bearing by the medium of a slide surface on the inner periphery of the bearing bushing to be movable in the axial direction; arranging a clearance fit between the outer diameter of the bearing bushing and the diameter(D1) of the bearing space; inserting the bearing bushing in the axial direction to place thereof in the bearing space without a force effect resulting from the reciprocal dimensioning of the diameters of the bearing bushing and the bearing space; and locking the bearing bushing during the use of the breaking device tool in the axial direction. |
