| 摘要 |
A hydraulic nut (8) for mounting a hollow object having a conically shaped opening, such as a conical ring (2), on a conical shaft (6), comprises a nut body (9) having an annular, coaxial cavity (10) as well as a ringlike piston (11) which is displaceable within said cavity (10). Measuring means (19, 20, 21, 23) are provided for measuring the axial displacement of the ringlike piston (11) with respect to the nut body (9). The the nut body (9) may have an axial hole (22) in which a measuring device (19, 21) can be mounted, and the piston (11) may have a reference (18) which can be detected by a probe (19) of the measuring device (20). <IMAGE> |
