Epicyclic Gear
Swinburne University of Technology (Sarawak Campus)
Faculty of Engineering, Computing and Science
HES 5310 Machine Dynamics 2
Lab Sheet: Epicyclic Gear System
Name: ..…………………………………………………….………………..
Student ID: ……………………………………...………………………….
Group Number: ..……………………….………………………………….
Date performed experiment: …………...……………………………….
Lab supervisor: ……………………………………………………………
DESCRIPTION (Note: You should do your own reading before attending the laboratory class)
This trainer is designed for the students to study the principles and operation of an epicyclic gear system. It can be used to determine the relationship between the number of gear teeth on gear and the speed ratio of gear. This gear train consists of three identical epicyclic gear stages. Each of the epicyclic gear system consists of one sun gear, three planetary gears, one ring gear and carrier. They are coupled in a way that the ring gear of the first stage is connected to the sun gear of the second stage and so on. The whole system is driven by using a geared motor. Digital speed controller is provided to vary the speed of the motor. A load cell is attached to the motor to measure the torque applied to the system. The speed of the motor and the torque applied is displayed digitally on digital meter. The speed of the ring gear of the first stage epicyclic gear system is measured by using an inductive proximity sensor. This speed is displayed on a digital rpm meter. Pulley system and spring load is connected at the end of the third stage epicyclic gear system to measure the output torque. With the results obtained, the characteristic (speed and torque) of an epicyclic gear system can be derived. With this gear train, two forward speeds and one reverse speed can be observed.
LEGEND
A
B
C
D
E
F
G
H
I
J
K
L
Spring scale
Pulley & belt
3rd stage epicyclic gear train
2nd stage epicyclic gear train
1st stage epicyclic gear train
Inductive sensor
Main power
Faculty of Engineering, Computing and Science
HES 5310 Machine Dynamics 2
Lab Sheet: Epicyclic Gear System
Name: ..…………………………………………………….………………..
Student ID: ……………………………………...………………………….
Group Number: ..……………………….………………………………….
Date performed experiment: …………...……………………………….
Lab supervisor: ……………………………………………………………
DESCRIPTION (Note: You should do your own reading before attending the laboratory class)
This trainer is designed for the students to study the principles and operation of an epicyclic gear system. It can be used to determine the relationship between the number of gear teeth on gear and the speed ratio of gear. This gear train consists of three identical epicyclic gear stages. Each of the epicyclic gear system consists of one sun gear, three planetary gears, one ring gear and carrier. They are coupled in a way that the ring gear of the first stage is connected to the sun gear of the second stage and so on. The whole system is driven by using a geared motor. Digital speed controller is provided to vary the speed of the motor. A load cell is attached to the motor to measure the torque applied to the system. The speed of the motor and the torque applied is displayed digitally on digital meter. The speed of the ring gear of the first stage epicyclic gear system is measured by using an inductive proximity sensor. This speed is displayed on a digital rpm meter. Pulley system and spring load is connected at the end of the third stage epicyclic gear system to measure the output torque. With the results obtained, the characteristic (speed and torque) of an epicyclic gear system can be derived. With this gear train, two forward speeds and one reverse speed can be observed.
LEGEND
A
B
C
D
E
F
G
H
I
J
K
L
Spring scale
Pulley & belt
3rd stage epicyclic gear train
2nd stage epicyclic gear train
1st stage epicyclic gear train
Inductive sensor
Main power