摘要:
The invention concerns a landing bearing assembly (10) for a rotary machine (1) comprising a stator assembly (20), a rotor assembly (30) and a magnetic bearing (40), the landing bearing assembly (10) comprising a stator landing portion (21) integral with the stator assembly (20) and a rotor landing portion (32) integral with the rotor assembly (30). A first coating (26, 36), which is an anti-wear and/or an anti-friction coating, is dispensed on at least one of the stator landing portion (21) and the rotor landing portion (32). The invention also concerns such a rotary machine.
摘要:
An aircraft (101) includes a rotor blade (107) and a rotor hub system (301). The rotor hub system (301) includes a lead-lag damper (303) having a rod end (315) and being operably associated with the rotor blade (107); a blade adapter (307) having a first arm (309) and an opposing second arm (311); a pin (316) carried by the blade adapter (307) and configured to secure in position via the first arm (309) and the second arm (311); and an actuator (703) secured to the pin (316) and configured to adjust the position of the lead-lag rod end (315) relative to the first arm (309) and the second arm (311).
摘要:
An assembly comprises a rotating shaft (10) supported with respect to a stationary housing (16) by at least one active magnetic bearing (12) presenting a mean radial air gap (E1) and at least one auxiliary bearing (18) comprising on the one hand a bushing (21) fixed to the housing (16) and on the other hand a sleeve (20) fixed on the rotating shaft (10). The bushing (21) and the sleeve (20) have opposite surfaces (24, 23) defining a clearance (E2) which is less than the mean radial air gap (E1). The bushing (21) and the sleeve (20) each exhibit symmetry around a longitudinal axis of the shaft (10) whilst having different profiles in a longitudinal cross-section including the longitudinal axis to optimize the contact pressure distribution when the rotating shaft (10) lands on the auxiliary bearing.
摘要:
A tilting pad radial bearing for a single-shaft turbomachine has a support ring (2), a tilting pad (4), and a tilting pad support (3) with an aligning device (8) which is rigidly fixed to the inner face of the support ring (2) and which has a convex sliding surface (18) that faces inwards and a concave sliding surface (19) that faces outwards, said concave sliding surface being rigidly fixed to the outer lying rear face (6) of the tilting pad (4). The sliding surfaces (18, 19) lie one above the other, and each surface is a circular arc in each sliding surface longitudinal section. The aligning device (8) is designed to keep the axial position of the tilting pad (4) adjustable relative to the support ring (2) such that an angle of attack of the sliding surface (5) of the tilting pad (4) can be adjusted relative to the axis of the tilting pad radial bearing (1) dependent on the axial position of the concave sliding surface (19) relative to the axial position of the convex sliding surface (18).
摘要:
The invention relates to a bearing element (7) for supporting the rotor hub (4) of a wind turbine (1), comprising at least one inner ring element (10, 40) and at least one outer ring element (11, 41), wherein a plain bearing support is developed between the inner ring element (10, 40) and the outer ring element (11, 41), and wherein the plain bearing support is formed by at least two plain bearings (8, 9, 38, 39) arranged at an axial distance (44) from each other.
摘要:
Bearing for the end of the shaft of a canned motor pump which is furthest from the pump. In order to facilitate the exchange of the plain bearing bush (2) from the pump side while simultaneously ensuring that the side furthest and the side nearest to the pump of the bearing bush are in true alignment, a mounting bushing (3) carrying the plain bearing bush (2) is provided which is connected in a detachable manner to the housing (7) of the canned motor pump by a thread (6) and a cone (8), which centers the mounting bushing (3) and is situated next to the thread.