MAIN BEARING ASSEMBLY FOR A WIND TURBINE

• Main Authors: LÜNEBURG, Bernd, LIEWEN, Christian, ROLLMANN, Jörg, MEVIUS, Lars
• Format: Patent
• Language: English; French; German
• Published: 21.08.2024
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to a main bearing assembly for supporting a rotatable rotor (1) of a wind turbine. The rotor (1) is rotatably supported relative to a connection structure via at least one rolling bearing (2), and the rolling bearing (2) has an outer ring (3) which is connected to an annular receiving area (A) of the connection structure over the radial outer circumferential surface (4) of the outer ring via a press fit, said outer ring (3) having at least one first form-fitting element (7) on at least one axial end face (6). A mating element (8) which is rotationally fixed to the connection structure is provided, having at least one second form-fitting element (9), and a form-fitting connection (10) is formed between the first (7) and second form-fitting element (9), said form-fitting connection acting in the circumferential direction of the outer ring (3). The aim of the invention is to provide a main bearing assembly with which damage produced by the ring walls of the rolling bearing outer ring arranged in an annular receiving area of the connection structure by means of a press fit is prevented and which can be used in a flexible manner. According to the invention, this is achieved in that the at least one first form-fitting element (7) is designed in the form of a protrusion (15) which projects in the axial direction with respect to the end face (6) of the outer ring (3), and the at least one second form-fitting element (9) is designed in the form of a recess (16) which is set back in the axial direction with respect to the end face (14) of the component (11) or the flange (12); or the at least one first form-fitting element (7) is designed in the form of a recess (17) which is set back in the axial direction with respect to the end face (6) of the outer ring (3), and the at least one second form-fitting element (9) is designed in the form of a protrusion (18) which protrudes in the axial direction with respect to the end face (14) of the component (11) or the flange (12), wherein the protrusion (15; 18) engages into the recess (16; 17), thereby forming the form-fitting connection (10) which acts in the circumferential direction.