11results about "Shaft repair/replacement" patented technology

Disclosed is a method for manufacturing a hybrid rolling bearing (1), wherein the hybrid rolling bearing (1) comprises at least one set (6) of ceramic rolling elements (4), at least one inner ring (10) made from bearing steel, and at least one outer ring (10) made from bearing steel, wherein the method comprises the following steps disassembling (S3) a used hybrid bearing (1) having at least one set (6) of ceramic rolling elements (4), at least one inner ring (8), and at least one outer ring (8), collecting at least one ceramic rolling element (4) from the set (6) of ceramic rolling elements (4), cleaning (S4) the collected ceramic rolling elements (4), providing at least one mint inner ring (10) made from bearing steel and / or at least one outer ring made from bearing steel (10), selecting (S6) at least one ceramic rolling element (4) of the cleaned ceramic rolling elements (4), assembling (S7) a new hybrid rolling bearing (1) using the at least one selected ceramic rolling element (4), and the at least one mint inner ring (10) made from bearing steel and / or the at least one outer ring (10) made from bearing steel.

Provided is a disassembly-free motor bearing disassembly and assembly method, which comprises: inserting a mounting rod (5) on the end face of an end cap, and sequentially mounting a clamping positioning member (4) and an abutment positioning member (3); pressing the outer end face of a rotor shaft (1) through the abutment positioning member for positioning, and pulling out an old bearing assembly in an axial direction; adjusting the clamping positioning member to clamp the rotor shaft for positioning while adjusting the abutment positioning member so as not to press the rotor shaft, and then pulling out the old bearing assembly in the axial direction from the outer end of the rotor shaft; and sliding a new bearing assembly (b) in the axial direction to the mounting position on the rotor shaft. The method can realize the disassembly-free disassembly and replacement of the motor bearing, thereby improving the disassembling and replacement efficiency, and avoiding the rotor displacement in the disassembly and replacement process.

The invention relates to a fluid film bearing (2) for a rotor hub (3) of a wind turbine (1) comprising a first part (10) and a second part (11) rotatably coupled to each other about a longitudinal axis. According to the invention, the first part (10) comprises an annular first sliding surface (14) extending in the circumferential direction of said fluid film bearing (2) along the first part (10). In addition, the second part (11) comprises a support structure (18) and a first group of bearing pads (12, 13) coupled to the support structure (18) and having a bearing pad sliding surface (17) configured to slide on the first sliding surface (14). In addition, the support structure (18) comprises a plurality of openings (20) for replacing the bearing pads (12, 13).

The present invention permits the repair of rolling contact bearings through a unique combination of material selection and repair process. Bearing raceways may become damaged during their service life. Once damage has occurred, the bearing may need to be replaced. Repairing damaged raceways has not been a viable option due to the combination of high carbon content found in the traditional material alloys along with the application of heat needed to fuse the repair material to the existing raceway. This combination can lead to exceedingly high stresses and brittle microstructure in the attempted repair location. The present invention overcomes the repair issues through the unique selection of an alloy steel capable of providing sufficient hardness while decreasing the resulting thermoelastic stress that occurs during the transformation from austenite to martensite at the repair location thereby reducing the chance of cracking following the repair.

The invention relates to a method for reprocessing used rolling bearings comprising rolling bearing components made of a metallic base material (2). The used rolling bearing comprising at least one rolling bearing ring and a number of rolling bodies is provided, rolling bearing rings and / or rolling bodies that are made of the metallic base material being reprocessable rolling bearing components. After the rolling bearing components have been separated and at least one of the rolling bearing components that can be sent for reprocessing has been identified, a surface region of the at least one reprocessable rolling bearing component that corresponds to a raceway region of the reprocessable rolling bearing component is removed. After a metallic repair material (3) has been applied, a raceway layer (4) is formed.

Journal bearing assembly for wind turbines comprising a static component (17), a rotating component (12) configured to rotate relative to the static component, a ring (13) mounted on the static component, and a plurality of bearing pads (15) mounted on the rotating component. The ring is configured to provide a clearance between the ring and the bearing pads in an area that is substantially unloaded by a weight of the wind turbine rotor. Method for repairing a journal bearing assembly of a wind turbine, comprising selecting a first bearing pad to be removed, positioning the first bearing pad in a removal position, the removal position being in an area of the journal bearing assembly that is substantially unloaded by a weight of the wind turbine rotor, locking the rotating component and maintaining the first bearing pad in the removal position and removing the first bearing pad through a clearance created in a ring mounted on the static component.

Systems, apparatus, articles of manufacture, and methods for rotary bearing maintenance are disclosed. An example apparatus includes a valve body defining a fluid passageway; a flow control member in the fluid passageway; a drive shaft coupled to the flow control member, the drive shaft extending through a shaft bore defined in the valve body; and a bearing around at least a portion of the drive shaft. The bearing includes: a first layer including a first material having a first coefficient of friction with the drive shaft when the first material is in contact with the drive shaft; and a second layer including a second material having a second coefficient of friction with the drive shaft when the second material is in contact with the drive shaft, the second coefficient of friction greater than the first coefficient of friction.

A main bearing assembly of a wind turbine includes at least one main bearing with a rotation axis and at least one bearing row in which a rotor shaft of the wind turbine is mounted. The main bearing assembly has at least one stationary bearing ring, a circulating bearing ring and rolling elements. A method of extending the service life or servicing the main bearing assembly includes rotating the stationary bearing ring about the rotation axis of the main bearing assembly. Alternatively, only a new stationary bearing ring, preferably with at least two bearing ring segments is installed instead of a damaged outer ring, in particular without further important bearing components such as the inner ring being exchanged.