TENSIONING SYSTEM FOR PRE-TENSIONING AN ACCESS POINT OF A TURBOMACHINE

摘要

The invention relates to a tensioning system (1) for pre-tensioning a tie rod (40) of a turbomachine (2), which has a tensioning disk (11) or a tensioning tube (12), and also a pressure plate (100) which has a first bearing surface (101) which, when the tie rod (40) is pre-tensioned, is oriented toward the tensioning disk (11) or the tensioning tube (12), and a second bearing surface (102) which is opposite the first bearing surface (101), wherein the tensioning disk (11) or the tensioning tube (12) have a central passage (20) through which it is possible to guide the tie rod (40) in a predetermined longitudinal direction (L) which coincides with the direction of longitudinal extent of the tie rod (40), and wherein the second bearing surface (102) has a serration (103) which, upon pre-tensioning, can be brought into areal contact with a suitable matching serration (113) for transmitting a pre-tensioning force into components (3) of the turbomachine (2).