IN-WHEEL MOTOR DRIVE DEVICE - NTN TOYO BEARING CO LTD

Title:

IN-WHEEL MOTOR DRIVE DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/186467

Kind Code:

A1

Abstract:

This in-wheel motor drive device (21) is provided with a motor unit (A), a decelerator unit (B), a wheel bearing unit (C), a casing (22), and a lubrication mechanism for supplying a lubricant to the motor unit (A) and the decelerator unit (B). A motor rotation shaft (24) of the motor unit (A) drives rotation of a decelerator input shaft (25), which has eccentric portions (25a, 25b); the decelerator unit (B) reduces rotation of the decelerator input shaft (25) and transmits said rotation to a decelerator output shaft (28); and the wheel bearing unit (C) is linked to the decelerator output shaft (28). In this in-wheel motor drive device (21), the lubrication mechanism comprises an oil passage (22b) in the decelerator unit (B) which discharges lubricant inside of the decelerator unit (B) to the motor unit (A), and an oil passage (22f) of the motor unit (A) which discharges lubricant inside of the motor unit (A) together with the lubricant from the decelerator unit (B) into an oil tank (22d), and in the motor unit (A), a partition plate (80) is provided which guides the lubricant from the decelerator unit (B) to the oil passage (22f) in the motor unit (A).

Inventors:

YUKISHIMA RYOU (JP)
SUZUKI MINORU (JP)
UOZUMI TOMOHISA (JP)

Application Number:

PCT/JP2015/063304

Publication Date:

December 10, 2015

Filing Date:

May 08, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NTN TOYO BEARING CO LTD (JP)
YUKISHIMA RYOU (JP)
SUZUKI MINORU (JP)
UOZUMI TOMOHISA (JP)

International Classes:

B60K7/00; F16H57/04

Foreign References:

JP2011189919A	2011-09-29
JP2010213453A	2010-09-24
JP2008132941A	2008-06-12
JP2012233516A	2012-11-29

Other References: