Leakage Characteristics Analysis of an End Face Clearance Compensated Non-circular Planetary Gear Motor

Cao, Wenbin; Liu, Yinshui; Niu, Zhuang; Wang, Li

doi:10.1109/fpm45753.2019.9035879

Cited by 1 publication

(6 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We first take B = 30 mm, m = 1:5, Z 2 = 16, Z c = 18, and n c = 2. Substituting these values into formula (20) gives V = 449:70 ml/r whereas V = 449:55 ml/r is calculated using the method presented in Section 3.3. We next substitute B = 12:5 mm, m = 1:8, Z 2 = 48, Z c = 51, and n c = 3 into formula (20) to get V = 1624:75 ml/r, whereas V = 1624:64 ml/r is calculated using the method presented in Section 3.3.…”

Section: Formulaic Processing Of the Hydraulic Motor Displacementmentioning

confidence: 99%

“…Substituting these values into formula (20) gives V = 449:70 ml/r whereas V = 449:55 ml/r is calculated using the method presented in Section 3.3. We next substitute B = 12:5 mm, m = 1:8, Z 2 = 48, Z c = 51, and n c = 3 into formula (20) to get V = 1624:75 ml/r, whereas V = 1624:64 ml/r is calculated using the method presented in Section 3.3. It is thus seen that formula (20) well represents the relationship between the design parameters of the non-circular gear and the displacement of the hydraulic motor.…”

Section: Formulaic Processing Of the Hydraulic Motor Displacementmentioning

confidence: 99%

“…We next substitute B = 12:5 mm, m = 1:8, Z 2 = 48, Z c = 51, and n c = 3 into formula (20) to get V = 1624:75 ml/r, whereas V = 1624:64 ml/r is calculated using the method presented in Section 3.3. It is thus seen that formula (20) well represents the relationship between the design parameters of the non-circular gear and the displacement of the hydraulic motor. In this way, the complicated area integration described in Section 3.3 is eliminated.…”

Section: Formulaic Processing Of the Hydraulic Motor Displacementmentioning

confidence: 99%

“…In this way, the complicated area integration described in Section 3.3 is eliminated. When the design parameters B, m, Z 2 , and n c of non-circular gears are given, the corresponding hydraulic motor displacement can be directly calculated using formula (20). At the same time, formula (20) reveals the effect of the non-circular gear design parameters B, m, Z 2 , and n c on the displacement of the hydraulic motor.…”

Section: Formulaic Processing Of the Hydraulic Motor Displacementmentioning

confidence: 99%

“…18,19 In addition, there has been much research on this type of motor. Cao et al 20 studied the main leakage modes of the motor and established a mathematical model of the clearance leakage. Szkodo et al 21 found that bending fatigue and surface contact fatigue of the planetary gear train were the main factors of the failure of hydraulic motors.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Displacement prediction and optimization of a non-circular planetary gear hydraulic motor

Zhang

Song

Jing

et al. 2021

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The non-circular planetary gear hydraulic motor is a low-speed and high-torque hydraulic motor with excellent performance. It has the characteristics of a wide speed range, low weight and is widely used in various fields. Aiming to solve the problem of there being no intuitive formula for calculating the displacement of the non-circular planetary gear hydraulic motor at present, based on the analysis of the effects of structural parameters on the displacement of the motor, this paper proposes a formula for calculating the displacement of a non-circular planetary gear hydraulic motor when the pitch curve of the sun wheel is a high-order ellipse. The formula allows the direct calculation and prediction of the displacement of the motor. To improve the unit volume displacement of the hydraulic motor (which determines the power density of the motor), based on the analysis of the unit volume displacement constraints, an optimization equation is proposed by adding an optimization factor to the original equation of the pitch curve of the sun wheel. It is seen that the addition of the new optimization factor eliminates the self-interlacing of the pitch curve of inner ring gear. This elimination increases the unit volume displacement of the motor.

show abstract

Section: Formulaic Processing Of the Hydraulic Motor Displacementmentioning

confidence: 99%