ARRANGEMENT AND PROCESS FOR MOUNTING AN AXIAL BEARING IN A HERMETIC COMPRESSOR

• Main Authors: MOREIRA, EMERSON, MACIEL, RICARDO ALEXANDRE, PEREIRA, MILTON WETZEL, WEBER, GUSTAVO CARDOSO, FAGOTTI, FABIAN
• Format: Patent
• Language: English; French
• Published: 04.03.2010
• Subjects: BEARINGS; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention is applied to a compressor comprising: a cylinder block (10) provided with a radial bearing (11) and an axial bearing (12); an eccentric shaft (20) having an upper end extension (21 ), around which a rotor (30) is mounted and supported on the axial bearing (12). A sliding ring (40) is mounted around said upper end extension (21), which is provided with an indexing means (22) to which is coupled a positioning means (42) of the sliding ring (40), rotatively locking the latter to the eccentric shaft (20). The mounting process comprises the steps of: mounting the eccentric shaft (20) in the radial bearing (11); descendingly mounting the sliding ring (40) around the upper end extension (21) of the eccentric shaft (20), until reaching an axial positioning stop (22c) therein, rotationally locking the sliding ring (40) to the eccentric shaft (20); and mounting the rotor (30) to the eccentric shaft (20) until seating a lower face portion (32) of the rotor (30) on the sliding ring (40). L'invention concerne un compresseur comprenant : un bloc-cylindres (10) doté d'un palier radial (11) et d'un palier axial (12); un arbre à excentrique (20) comprenant une extension d'extrémité supérieure (21), autour de laquelle un rotor (30) est monté et soutenu sur le palier axial (12). Un anneau coulissant (40) est monté autour de ladite extension d'extrémité supérieure (21) et est doté d'un moyen d'indexation (22) auquel un moyen de positionnement (42) de l'anneau coulissant (40) est accouplé, ce moyen fixant de manière rotative l'anneau sur l'arbre à excentrique (20). Le procédé de montage comprend les étapes suivantes : le montage de l'arbre à excentrique (20) dans le palier radial (11); le montage, de manière descendante, de l'anneau coulissant (40) autour de l'extension d'extrémité supérieure (21) de l'arbre à excentrique (20), jusqu'à ce qu'il atteigne une butée de positionnement axial (22c) à l'intérieur, de manière à fixer de manière rotative l'anneau coulissant (40) sur l'arbre à excentrique (20); et le montage du rotor (30) sur l'arbre à excentrique (20) jusqu'à ce qu'une partie côté inférieur (32) du rotor (30) vienne reposer sur l'anneau coulissant (40).