IN-WHEEL MOTOR DRIVING DEVICE

• Main Authors: TAMURA SHIRO, TAIKO MASAYA, SUGIURA SAORI
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2017
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To achieve downsizing of a dimension of a device in an axle direction.SOLUTION: An in-wheel motor drive device (10) includes: a motor part (21) which drives a wheel; a wheel hub bearing part; a speed reduction part (31) which reduces a speed of rotation of the motor part (21) to transmit the rotation to the wheel hub bearing part; an oil tank (47) which stores a lubrication oil; a pump shaft (51) which is provided independently of multiple shafts (32, 35, 38, 41) forming a driving transmission path of the speed reduction part (31); and an oil pump which is driven by the pump shaft (51) and suctions the lubrication oil from the oil tank (47).SELECTED DRAWING: Figure 2 【課題】装置の車軸方向寸法の小型化を図ること。【解決手段】インホイールモータ駆動装置（１０）は、車輪を駆動するモータ部（２１）と、車輪ハブ軸受部と、モータ部（２１）の回転を減速して車輪ハブ軸受部に伝達する減速部（３１）と、潤滑油を貯留するオイルタンク（４７）と、減速部（３１）の駆動伝達経路を構成する複数の軸（３２，３５，３８，４１）から独立して設けられたポンプ軸（５１）と、ポンプ軸（５１）によって駆動され、オイルタンク（４７）から潤滑油を吸入するオイルポンプとを備える。【選択図】図２