PROBLEM TO BE SOLVED: To provide a motor driving device for a vehicular in which support rigidity of a shaft body is higher than before.SOLUTION: A deceleration portion comprises: a deceleration portion input shaft (25); a deceleration portion output shaft (28); a first rolling bearing (39) and a second rolling bearing (38) which bear rotatably both end sides respectively in a shaft line of at least one shaft of the deceleration portion input shaft and the deceleration portion output shaft; and bearing precompression means that imparts precompression in the shaft line direction to the first rolling bearing and the second rolling bearing. The bearing precompression means imparts precompression in a direction in which an inner wheel (39p) and an inner wheel (38p) approach each other by inner wheel stopper portions (48 and 49) and a precompression spring (66) while regulating positions in a shaft line of an outer wheel (39q) and an outer wheel (38q) by outer wheel stopper portions (46 and 47).SELECTED DRAWING: Figure 3
【課題】軸体の支持剛性が従来よりも高い車両用モータ駆動装置を提供する。【解決手段】減速部は、減速部入力軸(25)と、減速部出力軸(28)と、減速部入力軸および減速部出力軸のうち少なくとも一方の軸体の軸線方向両端側をそれぞれ回転自在に支持する第1転がり軸受(39)および第2転がり軸受(38)と、これら第1転がり軸受および第2転がり軸受に軸線方向の予圧を付与する軸受予圧手段を有する。軸受予圧手段は、外輪止め部(46,47)によって外輪(39q)および外輪(38q)の軸線方向位置を規制した状態で内輪止め部(48,49)および予圧バネ(66)によって内輪(39p)と内輪(38p)が互いに接近する方向に予圧を付与することを特徴とする。【選択図】図3
MOTOR DRIVING DEVICE FOR VEHICLE
車両用モータ駆動装置
26.01.2017
Patent
Elektronische Ressource
Japanisch
Vehicle dual-motor driving device, driving system and vehicle
Europäisches Patentamt | 2023
|