Coupling element segments for a rotor of a turbomachine

摘要

A rotor of a turbomachine has a rotor base body and a plurality of rotor blades. Every rotor blade has a blade body and a coupling element segment. The coupling element segment of every rotor blade is contoured at a first side and at a second side opposite the first side that, at the first side and at the second side, a radially outer edge of the respective coupling element segment extends substantially in axial direction and a radially inner edge of the respective coupling element segment extends substantially in axial direction respectively delimit two surfaces separated from one another by a separating line. In at least one circumferential position of the rotor between two directly adjacent rotor blades, the separating lines run approximately parallel to, or in alignment with, the mounting direction of the rotor blades at the rotor base body, which mounting direction is defined by the blade roots. In every other circumferential position between two directly adjacent rotor blades, the separating lines formed at directly adjacent sides of the coupling element segments are oblique relative to the mounting direction.

主权项

1. A rotor of a turbomachine comprising:
a rotor base body having a plurality of slots; a plurality of rotor blades, wherein each rotor blade comprises: a blade root; a blade body, fastened by its blade root to the rotor base body in a respective slot of the rotor base body in a mounting direction defined by the blade roots; at least one coupling element segment in the region of its blade body, wherein, in circumferential direction, a width of the coupling element segment is defined by edges extending substantially in axial direction, wherein the at least one of the coupling element segment is contoured such that at a first side to which a coupling element segment of a first directly adjacent rotor blade is connected considered in circumferential direction and at a second side which is located opposite the first side and to which a coupling element segment of a second directly adjacent rotor blade is connected considered in circumferential direction that, at the first side and at the second side, a radially outer edge of the respective coupling element segment extends substantially in axial direction and a radially inner edge of the respective coupling element segment extends substantially in axial direction and respectively delimit two surfaces separated from one another by a separating line, wherein each separating line runs from the radially outer edge to the radially inner edge proceeding from edges on a flow inlet side to edges on the a flow outlet side, wherein, in at least one circumferential position of the rotor between two directly adjacent rotor blades, respective separating lines of these directly adjacent rotor blades formed at directly adjacent sides of the coupling element segments run one of approximately parallel to and in alignment with the mounting direction of the rotor blades at the rotor base body, which mounting direction is defined by the blade roots, whereby in every other circumferential position between two directly adjacent rotor blades, the separating lines of these directly adjacent rotor blades formed at directly adjacent sides of the coupling element segments are oblique relative to the mounting direction.