| 摘要 |
A device (D) is intended to securing a machine shaft (AIP) on a bearing support (SP). This device (D) comprises i) a locknut (19) provided with a stop, comprising a front face (23), a thread (20) intended to interact with a thread (7) of the bearing support (SP), and first coupling means (22), ii) an extraction nut (11) comprising a thread (12) intended to interact with a thread (1) of the shaft (AIP), inverted in relation to the thread (7) of the bearing support (SP), two coupling means (17) and a stop (13) provided with a front face, intended to be supported on a rear face (8) of a stop of the bearing support (SP), and a rear face (14) on which butts the front face (23) of the locknut stop (19) when it is located in an immobilisation position, and iii) a nut lock (24) provided with third (29) and fourth (26) coupling means, designed so as to interact respectively with the first (22) and second (17) coupling means, in order to couple in rotation the extraction nut (11) and the locknut (19) once they have been located in an irnmobilisation position. |
