Mechanical device comprising a bearing and a lubrication system, implementing machine and method

摘要

A mechanical device, comprising: a bearing including a fixed ring and a pivoting ring centered on a central axis and including an interface defined therebetween; and an interface lubrication system. An acceleration field pushes the stream of lubricant from a bearing first zone to a bearing second zone, each defining an angular sector around the central axis. The lubrication system comprises a set of peripheral channels passing through the fixed ring and including first channels positioned in the first zone and defining a first intake flow rate for bringing lubricant to the interface and second channels positioned in the second zone and defining a second intake flow rate bringing lubricant to the interface. The first flow rate is higher than the second flow rate. The interface receives a larger quantity of lubricant in the first zone than in the second zone. The mechanical device can be integrated into a machine.

主权项

1. A mechanical device, comprising:
a bearing including a fixed ring that is fixed to a rotatable shaft and a pivoting ring that are centered on a central axis and include an interface defined between them; and a system for lubricating the interface having only a single supply channel, the system being configured to bring a flow of lubricant from the single supply channel to the interface through the fixed ring, wherein the single supply channel extends in an axial direction, the system comprising a plurality of junction channels that extend radially from the single supply channel, each one of the plurality of junction channels fluidly connect the single supply channel to one of a plurality of distributing channels that extend circumferentially; the bearing including a first zone and a second zone, each defining an angular sector around the central axis, a first angular sector of the first zone being smaller than a second angular sector of the second zone; wherein the lubrication system comprises at least a first one of the plurality of distributing channels being located entirely within the first zone and extending circumferentially for a first angle that is less than or equal to ninety (90) degrees around the central axis, a second one of the plurality of distributing channels comprising an axial junction channel extending therefrom and fluidly connecting the second one of the plurality of distributing channels with a third one of the plurality of distributing channels that is located entirely within the second zone and extending circumferentially for a second angle around the central axis, wherein each of the plurality of distributing channels comprise one of a plurality of first peripheral channels or a plurality of second peripheral channels, wherein each of the plurality of first and second peripheral channels extend radially outwardly from their respective distributing channel and pass through the fixed ring, the plurality of first peripheral channels are entirely located within the first zone and define a first intake flow rate for bringing lubricant to the interface, and the plurality of second peripheral channels are entirely located within the second zone and define a second intake flow rate bringing lubricant to the interface, the first intake flow rate being higher than the second intake flow rate, such that the interface between the rings of the bearing receives a larger quantity of lubricant in the first zone than in the second zone, and wherein the first one and the second one of the plurality of distributing channels comprise the plurality of first peripheral channels and the third one of the plurality of distributing channels comprises the plurality of second peripheral channels.