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Lubrication structure for rotating machinery

A technology of rotating machinery and structure, applied in the field of lubricating structure of rotating machinery, can solve problems such as the limitation of the amount of lubricating oil, the scattering of lubricating oil, and achieve the effect of efficient lubrication

Active Publication Date: 2022-07-08
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there is a gap (gap) between the resolver stator and the resolver rotor, since the resolver rotor rotates integrally with the shaft, the lubricating oil is easily scattered due to centrifugal force, and the amount of lubricating oil supplied to the bearing from this gap is limited.

Method used

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  • Lubrication structure for rotating machinery
  • Lubrication structure for rotating machinery
  • Lubrication structure for rotating machinery

Examples

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Embodiment Construction

[0031] The present invention is suitably applied to, for example, a lubricating structure of a rotating machine (a motor or a motor generator) used as a driving force source of a vehicle, but can also be applied to a rotating machine other than a vehicle. It can also be applied to a rotating machine exclusively used as a generator. The lubricating oil passage may be constituted by, for example, only the fluid passage provided on the wall of the casing, but a pipe separate from the casing may be attached to the inside of the casing, and the pipe may be used as the lubricating oil passage. To this lubricating oil passage, for example, the lubricating oil cooled by the oil cooler may be supplied, but the lubricating oil may be supplied without passing through the oil cooler.

[0032] At least a part of the opening on the bearing side of the through-oil hole provided in the resolver stator may be exposed on the inner peripheral side of the fixing part to the casing, and the lubric...

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Abstract

The present invention relates to a lubricating structure for a rotating machine. In the rotating machine in which the resolver is arranged in the casing, lubricating oil can be appropriately supplied to the bearing outside the resolver. Since a through oil hole (90) is provided in the inner peripheral side portion of the resolver stator (62) fixed to the mounting seat (84) on the inner surface of the second case member (22), the oil through the oil hole (90) is provided in the inner peripheral side portion of the resolver stator (62), so that the Part of the lubricating oil that has flowed down flows into the through oil hole (90) directly or indirectly due to splashing due to the rotation of the shaft (18) or the rotor, and is supplied to the bearing (26). Since the resolver stator (62) is fixed to the second case member (22), the lubricating oil will not be splashed by centrifugal force, and by appropriately determining the size, number, and position of the through-oil holes (90), it is possible to supply the bearing to the bearing. (26) Sufficient amount of lubricating oil is supplied and lubricated appropriately.

Description

technical field [0001] The present invention relates to a lubricating structure for a rotating machine, and more particularly, to a lubricating structure for a rotating machine in which a resolver is arranged in a casing. Background technique [0002] There is known a lubricating structure for a rotating machine, which is applied to a rotating machine having: (a) a cylindrical stator, which is arranged in a casing concentrically with the center line of the rotating machine and is fixed to the casing; (b) a rotor arranged in the casing and on the inner peripheral side of the stator concentrically with the centerline of the rotating machine; and (c) a shaft having The rotating machine centerline is arranged concentrically, rotates integrally with the rotor, and is supported by the housing via a bearing so as to be rotatable around the rotating machine centerline, (d) using a The lubricating oil supplied to the stator by the lubricating oil passage cools the stator, and the be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/225H02K5/16F16C33/66
CPCH02K11/225H02K5/161F16C33/6659F16C2380/26H02K5/203H02K9/19H02K5/20
Inventor 北川胜秀森正树
Owner TOYOTA JIDOSHA KK
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