Rotor arrangement with balancing element and method for mounting a balancing element

Abstract

A rotor arrangement, with a rotor for an engine having a rotor disc that extends along a circumferential direction about a central axis, and at least one balancing element that is attached at the rotor disc for balancing the rotor. At least one attachment section projecting axially with respect to the central axis is embodied at the rotor disc, and the at least one balancing element engages around the axially projecting attachment section.

1 . A rotor arrangement, with
 a rotor for an engine, having a rotor disc extending along a circumferential direction about a central axis, and   at least one balancing element that is attached at the rotor disc for balancing the rotor, wherein   at least one attachment section projecting axially with respect to the central axis is embodied at the rotor disc, and   the at least one balancing element engages around the axially projecting attachment section.   
     
     
         2 . The rotor arrangement according to  claim 1 , wherein the at least one balancing element has a balancing element body with a wrap-around section by means of which the balancing element engages around the axially projecting attachment section. 
     
     
         3 . The rotor arrangement according to  claim 2 , wherein the wrap-around section has at least one—with respect to the central axis—radially outer first leg section and at least one radially inner second leg section, and wherein at least a part of the axially projecting attachment section is received between the first and the second leg sections. 
     
     
         4 . The rotor arrangement according to  claim 3 , wherein at least one of the first and second leg sections has a curvature that is convex in the direction of the attachment section. 
     
     
         5 . The rotor arrangement according to  claim 1 , wherein the at least one balancing element comprises a balancing element body and a fixation element that is adjustable relative to the balancing element body. 
     
     
         6 . The rotor arrangement according to  claim 5 , wherein the balancing element engages around the axially projecting attachment section by means of at least one section of the balancing element body and at least one section of the fixation element. 
     
     
         7 . The rotor arrangement according to  claim 3 , wherein the at least one balancing element comprises a balancing element body and a fixation element that is adjustable relative to the balancing element body, and wherein, for fixating the balancing element at the attachment section, the fixation element is configured and adjustably mounted relative to the balancing element body in such a manner that a radial distance of the first and second leg sections can be modified by adjusting the fixation element. 
     
     
         8 . The rotor arrangement according to  claim 7 , wherein the fixation element extends with one section between the first and the second leg sections radially with respect to the central axis. 
     
     
         9 . The rotor arrangement according to  claim 8 , wherein the section of the fixation element extending between the first and the second leg sections extends not through the attachment section, but instead past it. 
     
     
         10 . The rotor arrangement according to  claim 5 , wherein, for fixating the balancing element at the attachment section, the fixation element is configured and adjustably mounted relative to the balancing element body in such a manner that the fixation element can be brought into contact with the attachment section. 
     
     
         11 . The rotor arrangement according to  claim 5 , wherein the fixation element forms a contact surface via which the fixation element acts on one of the first and second leg sections or the axially projecting attachment section for fixating the balancing element at the attachment section. 
     
     
         12 . The rotor arrangement according to  claim 1 , wherein the wrap-around section has a trapezoidal contour, as viewed in a side view along the central axis. 
     
     
         13 . The rotor arrangement according to  claim 1 , wherein the at least one balancing element has a balancing element body with a wrap-around section by means of which the balancing element engages around the axially projecting attachment section, and wherein
 the wrap-around section has at least one—with respect to the central axis—radially outer first leg section and at least one radially inner second leg section, and wherein at least a part of the axially projecting attachment section is received between the first and the second leg sections, and the wrap-around section has two second radially inner [leg sections] that are located opposite a first radially outer leg section.   
     
     
         14 . A method for mounting a balancing element at a rotor that is rotatable about a central axis and has a rotor disc with at least one—with respect to the central axis—axially projecting attachment section, wherein the method comprises at least the following steps:
 providing a balancing element with mounting jaws, and 
 attaching the balancing element at the at least one attachment section, so that the balancing element engages around the attachment section and at least a part of the attachment section is received inside the mounting jaws. 
 
     
     
         15 . The method according to  claim 14 , wherein the balancing element comprises
 (a) a balancing element body with a wrap-around section, wherein the wrap-around section has at least two facing leg sections that define the mounting jaws, or   (b) a balancing element body and a fixation element adjustably mounted thereat, wherein the mounting jaws engaging around the attachment section is defined by a section of the balancing element body and a section of the fixation element.   
     
     
         16 . The method according to  claim 14 , wherein the balancing element attached at the attachment section is displaced into a balancing position along a circumferential direction about the central axis, and is subsequently fixated. 
     
     
         17 . The method according to  claim 14 , wherein an adjustably mounted fixation element of the balancing element is adjusted for fixating the balancing element in a balancing position at the attachment section. 
     
     
         18 . The method according to  claim 14 , wherein a mounting tool at which a balancing element body of the balancing element is held in a form-fitting manner and by means of which the balancing element body is further displaced into the balancing position is used for attaching the balancing element body at the attachment section. 
     
     
         19 . The method according to  claim 17 , wherein a mounting tool at which a balancing element body of the balancing element is held in a form-fitting manner and by means of which the balancing element body is further displaced into the balancing position, is used for attaching the balancing element body at the attachment section, and wherein the mounting tool is embodied in at least two parts with a holding part that holds the balancing element body in a form-fitting manner and a part for the displacement of the fixation element adjustably mounted at the holding part. 
     
     
         20 . The method according to  claim 19 , wherein the adjustably mounted part is mounted so as to be rotatable and displaceable at the holding part, and is connected in a torque-proof manner to the fixation element for the fixation of the balancing element, while the balancing element body remains retained at the holding part.