摘要:
System for lubricating and cooling a mechanical assembly According to the invention, this system comprises a main device (2) and an auxiliary backup device (3), which comprises: at least one reservoir (10) of lubricating and cooling liquid independent of the main device (2); at least one source (11) of pressurized gas; and at least one spray nozzle (17, 18) which is fed, on the one hand, with lubricating and cooling liquid at a pressure at most equal to 2 bar (2.10−5 pascal) from said reservoir (10) and, on the other hand, with pressurized gas from said source (11), said nozzle being able to spray a mist of lubricating and cooling liquid onto said mechanical assembly (1) so as temporarily to supplement the defective main device (2).
摘要:
A lubricating and cooling system for a mechanical assembly includes a first path having a reservoir of lubricating and cooling liquid and a second path having a source of pressurized gas. A feed mechanism receives the lubricating and cooling liquid from the first path and the pressurized gas from the second path and outputs the pressurized gas and liquid. First and second spray nozzles spray the pressurized gas and liquid onto the mechanical assembly. The first path has a pressure and flow limiter arranged between the reservoir and the first and second spray nozzles so that the first and second spray nozzles are fed with the lubricating and cooling liquid at a pressure no greater than 2 bar (2×105 Pascal).
摘要:
According to the invention, this system comprises a main device (2) and an auxiliary backup device (3), which comprises: at least one reservoir (10) of lubricating and cooling liquid independent of the main device (2); at least one source (11) of pressurized gas; and at least one spray nozzle (17, 18) which is fed, on the one hand, with lubricating and cooling liquid at a pressure at most equal to 2 bar (2.10−5 pascal) from said reservoir (10) and, on the other hand, with pressurized gas from said source (11), said nozzle being able to spray a mist of lubricating and cooling liquid onto said mechanical assembly (1) so as temporarily to supplement the defective main device (2).
摘要:
The bearing is an angular contact ball bearing with two asymmetric rows of balls, with a one-piece outer race and an inner race having two matched inner half-races side by side and able to be axially preloaded against each other when the bearing is mounted on the shaft of a gear the set of teeth of which cantilevers out from the bearing which has its row of larger-diameter balls on the same side as the set of teeth. Preloading may be provided by a nut screwed onto the shaft and tightened up against one of the inner half-races until the latter bears against the other inner half-race. A lock nut may hold the nut in position. The gear with its set of teeth and its shaft, the bearing with its large-diameter balls on the same side as the set of teeth, and the preloading device constitute a modular assembly, premounted and preloaded prior to fixing to a housing using a flange belonging to the outer race.