| 摘要 |
A device (D) is dedicated 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 immobilisation position.
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