PROBLEM TO BE SOLVED: To provide an in-wheel motor driving gear ensuring small size, light weight, excellent lubrication performance, and improved durability.SOLUTION: An in-wheel motor driving gear comprises: a motor portion A; a speed reduction portion B; and a wheel bearing portion C, an outer circumference of a torque transmission portion of a speed reducer input shaft 25 being fitted into an inner circumference of a torque transmission portion of a motor rotary shaft 24, lubricant passages 24a and 25c constituting a part of a lubrication mechanism being formed within the motor rotary shaft 24 and the speed reducer input shaft 25, respectively, and hollow pipe members 80 and 80' forming the lubricant passage 24a being fitted into the motor rotary shaft 24.
【課題】小型・軽量で、潤滑性能に優れ、耐久性を向上させたインホイールモータ駆動装置を提供する。【解決手段】モータ部Aと、減速部Bと、車輪用軸受部Cと、を備えたインホイールモータ駆動装置において、モータ回転軸24のトルク伝達部の内周に、減速機入力軸25のトルク伝達部の外周が嵌合し、潤滑機構の一部を構成する潤滑油路24a、25cが、モータ回転軸24と減速機入力軸25のそれぞれの内部に形成されており、モータ回転軸24に潤滑油路24aを形成する中空パイプ部材80、80’が嵌装されている。【選択図】図1
IN-WHEEL MOTOR DRIVING GEAR
インホイールモータ駆動装置
2016-01-28
Patent
Elektronische Ressource
Japanisch
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