VEHICLE DRIVE DEVICE

• Main Authors: HIRAI ISAO, KARASAWA HIDENORI
• Format: Patent
• Language: English; Japanese
• Published: 24.08.2017
• 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; BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To reduce a size of a torque difference amplification mechanism to reduce a size and a weight of a vehicle drive device.SOLUTION: Planetary gear mechanisms 30L, 30R of a gear device 30 for distributing power from electric motors 2L, 2R to right and left wheels, have internal gears R, R, planetary carriers C, Cdisposed coaxially with the internal gear R, R, sun gears S, Sdisposed coaxially with the internal gears R, R, and planetary gears P, P, further have a first connecting member 31 for connecting one planetary carriers Cand the other sun gear S, and a second connecting member 32 connecting one sun gear Sand the other planetary carrier C. Intermediate gear shafts 13L 13R are provided with an input-side external gear 13a engaged with an input gear 12a, and an output-side small diameter gear 13b connected to the planetary carriers C, Cand engaged with an output gear 14a. External gears configuring reduction gears 3L, 3R are helical gears, and internal gears R, R, the sun gears S, S, and the planetary gears P, Pconfiguring the planetary gear mechanisms 30L, 30R are respectively spur gears.SELECTED DRAWING: Figure 3 【課題】 トルク差増幅機構を小さくし、車両駆動装置を小型、軽量化する。【解決手段】 電動モータ２Ｌ、２Ｒからの動力を左右輪に分配する歯車装置３０の遊星歯車機構３０Ｌ、３０Ｒは、内歯車ＲL、ＲRと、内歯車ＲL、ＲRと同軸上に設けられた遊星キャリアＣL、ＣRと、内歯車ＲL、ＲRと同軸上に設けられた太陽歯車ＳL、ＳRと、遊星歯車ＰL、ＰRとを有し、一方の遊星キャリアＣLと他方の太陽歯車ＳRとを結合する第１結合部材３１と、一方の太陽歯車ＳLと他方の遊星キャリアＣRとを結合する第２結合部材３２とを有し、中間歯車軸１３Ｌ、１３Ｒに、入力歯車１２ａと噛み合う入力側外歯車１３ａと、遊星キャリアＣL、ＣRと連結され、出力歯車１４ａと噛み合う出力側小径歯車１３ｂとを設け、減速装置３Ｌ、３Ｒを構成する外歯車を、はすば歯車とし、遊星歯車機構３０Ｌ、３０Ｒを構成する、内歯車ＲL、ＲR、太陽歯車ＳL、ＳR、遊星歯車ＰL、ＰRをそれぞれ平歯車とした。【選択図】 図３