In the experiment, the finite swing motion and the continuous rotation otion had the effect of mill. But the continuous rotation motion had batter ffect of mill. Because the normal force of the continuous rotation motion as batter big, and the range of the continuous rotation motion was batter any. The normal force could determine the size of the powder which is illed.
When the planetary ball mill machine run, the hammer would produce
different motion by the or the powder. So the
moti
il the motion of the hammer was the continuous rotation motion. It m
e w m m
coefficient of frictional force f
on of hammer was determined by the direct current of the power for the motor B which was transformed into frequency with FFT. If the motion of the hammer was the continuous rotation motion, the angular velocity of the arm could increase until the motion of the hammer was the finite swing motion. At the same time, the angular velocity of the arm could decrease a little unt
was the best effect of the planetary ball mill machine. If the motion of the hammer was the finite swing motion, the angular velocity of the arm and the s angular velocity of the cup could decrease until the motion of the hammer was the continuous rotation motion.
According to equation 2-23 and equation 2-24, we could find the change of the angular velocity for the arm and the change of the angular velocity for the cup to change the normal force. The change of t the angular velocity for the arm could be the square of the normal force. The change of the angular velocity for the cup could be multiple of the normal force. So, if the motion of the hammer was the finite swing motion in the beginning,
we should increase the angular velocity of the cup until the motion of the hammer was the continuous rotation motion. The angular velocity for the
should increase the angular velocity of the arm until the motion of arm was decreased unless the angular velocity for the cup increased to limit.
So, the planetary ball mill machine should have the better effect. We should determine the motion of the hammer with the frequency of direct current for the motor B which was transformed with FFT. And, the frequency of the motion could determine with the simulation analysis. If the motion of the hammer was the continuous rotation motion in beginning, we should increase the angular velocity of the cup until a limit. The motion of the hammer was the continuous rotation motion all the same. Second step, we
the hammer was the finite swing motion. At the same time, the angular velocity of the arm could decrease a little until the motion of the hammer was the continuous rotation motion. At the moment, the effect of the planetary ball mill machine was better. If the motion of the hammer was the finite swing motion in beginning, we should increase the angular velocity of the cup until a limit. If the motion of the hammer was the continuous rotation motion, we should increase the angular velocity of the arm until the motion of the hammer was the finite swing motion. At the same time, the angular velocity of the arm could decrease a little until the motion of the hammer was the continuous rotation motion. But, we should increase the angular velocity of the cup until a limit and the motion of the hammer was finite swing motion. We should decrease the angular velocity of the arm until the motion of the hammer was the continuous rotation. At the moment, the effect of the planetary ball mill machine was better. So, we
could control the angular velocity of the arm and the angular velocity of the cup to determine the motion of the planetary ball mill machine
Reference
] Shu-Ping Huang, “Preparation and Characterizations of Photo-curable Montmorillonites-Epoxy Nanocomposites ”.碩士論文, 國立交通大 學,2005
] Huang, Chia-Lin, “Modeling and Application of Planetary Gear Train ”.
士論文, 國立中山大學,1993
]Chih-Hao Ma, “The Study of Nanolization of Slag” ,碩士論文, 國立 中興大學,2004
, GUANG-YU, “以行星式研磨方式進行光學元件製作之探
[6] Chih-Hao Ma, “The Study of Nanolization of Slag”, 碩士論文, 國立 中興大學,2004
[7] Abdellaoui, M.; Gaffet, E., “Physics of mechanical alloying in the planetary ball mill and the horizontal hammer mill: kinematic approach”, Materials Science Forum, Jun 27-Jul 1 1994, p 339-344
s, COPPE/UFRJ, CEP 21945-970 Rio
[9] Chattopadhyay, P.P.; Manna, I.; Talapatra, S.; Pabi, S.K., “Mathematical analysis of milling mechanics in a planetary ball mill”, Materials Chemistry [1
[2 碩 [3
[4] Chun-Chieh Liang, “Dynamic Load Analysis of Planetary Gear System”, 碩士論文,中華大學,2005
[5] CHEN
討＂, 碩士論文, 輔仁大學,1981
[8] dos Santos, Maria Aparecida P.; Costa, Celio A.,“Programa de Engenharia Metalurgica e de Materiai
de Janeiro, RJ, Brazil”, Powder Technology, Oct 31 2006, p 84-88
and Physics, 2001, p 85-94
Tables
Name AC MOTOR DC MOTOR Remark
Factory ADELLPO YASKAWA
WER
Rated Output(W) 750 830
Voltage AC 220V DIRECT
CURRENT 48V
Rated Torque(kg-cm) 36.6 32.4
Rated Speed 3000 3000
Weight(kg) 2.1 8.35
Table 3.1 The specifications of the motor
ecification Remark
Six, configurable, axes position control for servos or stepper
r 8 DAC channels with a 16-bit resolution PCI bus interf
otion
9 encoder channels with a 32-bit counte
ace AD/DA
c
ith 12-bit resolution nnels with 16-bit resolution
og I/O ard(HAL 8184)
8 A/D channels w 4 D/A cha
Full Isolated Anal
Table 3.2 The specifications of the control
Name Code Name Value Remark(unit) The coeffic
Dynamics fric
ient of
tion force μ k 0.12
The coefficient of force
Statics friction
μ s 0.3
Inertia of rotation J 0.5
The radius of the arm Ra 0.085 m
The coefficient of electriccurrent K 0.0055
Mass of the cup Mp 2.188 kg
Inertia of the mill cup IP 0.02
Inertia of the arm IA 0.03
Table 4.1 The parameter of the planetary ball mill machine
Figures
Figure 1.1 The wheel mills pellet to reach powder
Figure 1.2 The upper side of direction for the planetary ball mill machine
Figure 1.3 The assembly of the planetary ball mill machine
Figure 1.4 The assembly of the mill cup
Figure 1.5The all assembly of the planetary ball mill machine
Figure 2.1 The motion of one mill cup and hammer
Figure 2.2 The contact motion
Figure 2.3 The layout of torque
Figure 3.1 The arm
Figure 3.2 The cup
Figure 3.3 The layout of the motor A and the motor B
Figure 3.4 The framework
Figure 3.5 The planetary ball mill machine
Figure 3.6 The entity of the planetary ball mill machine
Figure 3.7 The hammer in the planetary ball mill machine
Figure 3.8 The layout of the LED which is set up the planetary ball mill machine
r velocity
Figure 3.9 The angula of the planetary gear
Figure 3.10 The model V belt and the model V belt pulleys
Figure 3.11 The single-lens reflex camera set up on top of the planetary ball mill machine
Figure 3.12 The WIN PC32
Figure 3.13 The Range of application for WIN PC32
Figure 3.14 The control plane
Figure 3.15 The main interface of the HMI
Figure 3.16 The AD/DA card and the hall sensor
Figure 3.17 The R.S. Trend window of the HMI
Figure 4.1 The layout of the angular velocity
Figure 4.2 The θ of the finite swing motion form simulation
Figure 4.3 The finite swing motion form simulation
Figure 4.4 The normal force of the finite swing motion form simulation
Figure 4.5 The friction force of finite swing motion form simulation
Figure 4.6 The ω of the finite swing motion form simulation
Figure 4.7 The ωH of the finite swing motion form simulation
Figure 4.8 The dire current of finite swing motion form simulatioct n
Figure 4.9 The FFT of the finite swing motion form simulation
Figure 4.10 The louse of the finite swing motion form simulation
Fi
simulation
gure 4.11 The top view on the louse of the finite swing motion form
Figure 4.12 The θ of the continuous rotation motion form simulation
Figure 4.13 The continuous rotation motion form simulation
Figu rm simulation
re 4.14 The normal force of the continuous rotation motion fo
Figure 4.15 The friction force of the continuous rotation motion form simulation
Figure 4.16 The ω of the continuous rotation motion form simulation
Figure 4.17 The ωH of the continuous rotation motion form simulation
Figure 4.18 The direct current of the continuous rotation motion form simulation
Figure 4.19 The FFT of the continuous rotation motion form simulation
Figure 4.20 The louse of the continuous rotation motion form simulation
Figure 4.21 The top view on the louse of the continuous rotation motion form simulation
Figure 4.22 The direct current of experiment with no hammer form experiment
Figure 4.23 The direct current of experiment with the hammer form experiment
Figure 4.24 The FFT of the finite swing motion for the experiment with no hammer
Figure 4.25 The FFT of the finite swing motion for the experiment with hammer
Figure 4.26 The louse of the finite swing motion form experiment
Fi
experiment
gure 4.27 The top view on the louse of the finite swing motion form
Figure 4.28 The direct current of the continuous rotation motion form ent with no h
experim ammer
Figure 4.29 The direct current of the continuous rotation motion form experiment with the hammer
Figure 4.30 The FFT of the continuous rotation motion form experiment with no hammer
Figure 4.31 The FFT of the continuous rotation motion form experiment with the hammer
Figure 4.32 The louse of the continuous rotation motion form experiment
Figure 4.33 The top view on the louse of the continuous rotation motion form experiment