AA- and A A ¯ -Planetary Gear Trains

Arnaudov, Kiril; Karaivanov, Dimitar Petkov

doi:10.1201/9780429458521-23

Cited by 1 publication

(7 citation statements)

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“…6). The indices of these types of simple planetary gear trains are according to [1]. The letters А and I refer to the external and the internal meshings, respectively.…”

Section: Objectivementioning

confidence: 99%

“…The last possible case is when both central gear wheels 1 and 4 rotate, but in reverse directions. Their movements are not summed up and the output angular velocity ω Н = ω В of the carrier Н is determined by the following formula 1 4…”

Section: аааPlanetary Gear Trainmentioning

confidence: 99%

“…2, b and c), the angular velocities of the two motors and of the central gear wheels 1 and 4 should be the same, i.e. 1 4…”

Section: аааPlanetary Gear Trainmentioning

confidence: 99%

“…The small size of the gear train may also be considered an advantage. The internal teeth, which is technologically more complicated and more slow to produce, and also has some peculiarities, may be considered as a drawback [1][2][3].…”

Section: Iаiplanetary Gear Trainmentioning

confidence: 99%

“…When i 0 = +2 and the two motors rotate unidirectionally and drive the sun gear 1 and the carrier Н with the same angular velocity ω A , i.e. 1 H A…”

Section: ааIplanetary Gear Trainmentioning

confidence: 99%

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Work of the planetary gear trains as differentials and their capabilities

2019

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Planetary gear trains can work differently, namely, with F=1 degree of freedom, i.e. as reducers or multipliers, and also with F=2 degrees of freedom, i.e. as differentials. Moreover, with a two-motor drive they work as a summation planetary gear train and with a one-motor drive, they work as a division planetary gear train. The most popular application of planetary gear trains is as a differential which is bevel and is produced globally in millions of pieces. Some of the cylindrical planetary gear trains can also be used as differentials. Although less often, they are used in heavy wheeled and chain vehicles such as trailer trucks, tractors and tanks. They are also very suitable for lifting machines with a two-motor drive which provides maximum security for the most responsible cranes, such as the metallurgical ones. Initially the paper presents some simple, i.e. single-carrier cylindrical planetary gear trains, both with external and internal meshing, driven by 2 motors. Their kinematic capabilities and velocity, respectively, are considered to realize the necessary gear ratio. Finally, the case of a compound two-carrier planetary gear train is considered, which is composed of 2 simple planetary gear trains. This shows that not only the simple planetary gear trains, i.e. the single-carrier ones, can work as differentials. Fig. 1. Bevel (а) and cylindrical (b) differential: Р Аinput power; Р Вoutput power.

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“…6). The indices of these types of simple planetary gear trains are according to [1]. The letters А and I refer to the external and the internal meshings, respectively.…”

Section: Objectivementioning

confidence: 99%

Section: аааPlanetary Gear Trainmentioning

confidence: 99%

“…2, b and c), the angular velocities of the two motors and of the central gear wheels 1 and 4 should be the same, i.e. 1 4…”

Section: аааPlanetary Gear Trainmentioning

confidence: 99%

Section: Iаiplanetary Gear Trainmentioning

confidence: 99%

“…When i 0 = +2 and the two motors rotate unidirectionally and drive the sun gear 1 and the carrier Н with the same angular velocity ω A , i.e. 1 H A…”

Section: ааIplanetary Gear Trainmentioning

confidence: 99%

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