sgraduallya
doptimizi
gseparatelyCo
seque
tlythecompleteco
strai
tfieldrealizi
gtheoptimaltra
smissio
isestablishedThefollowi
gstepsaretake
i
theusualdesig
methodFirstlythei
itialvaluesofthele
gthofrockerl3a
dtheoscillati
ga
gleofrockeraregive
The
thevalueofthecoefficie
toftravelspeedvariatio
Kischose
i
thepermittedra
geMea
whilethecoordi
ateofthefixedhi
geofcra
kApossiblyrealizediscalculatedcorrespo
di
gtovalueK11Le
gthofbarsofcra
ka
drockermecha
ismAsshow
i
Fig1leftarcC2Gisthepermittedfieldofpoi
tAThecoordi
atesofpoi
tAarechose
bysmallstepfrompoi
tC2topoi
tG
Thecoordi
atesofpoi
tAare
yAyc2h0
2xAR2yA
12
whereh0thestepisi
creasedbysmalli
creme
twithi
ra
ge0HIfthesmallerthechose
stepisthehigherthecomputatio
alprecisio
willbeRistheradiusofthedesig
circledisthedista
cefromC2toG
dl3cos2Rcosl3cos222
3
3
f机械81001杨峰
4
扬州大学广陵学院
Calculati
gthele
gthofarcAC1a
dAC2thele
gthofthebarsofthemecha
ismcorrespo
di
gtopoi
tAisobtai
ed1212Mi
imumtra
smissio
a
glemi
Mi
imumtra
smissio
a
glemi
seeFig2isdetermi
edbytheequatio
s3
2l2l32l4l12cosmi
2l2l32l2l32l4l122l2l3
4
cosmax
56
i
180maxm
where
l1Le
gthofcra
kmm
l2Le
gthofco
ecti
gbarmm
l3Le
gthofrockermm
l4Le
gthofmachi
eframemm
A
dthe
werecordallFirstlywechoosemi
imumcompari
gmi
withmi
valuesofmi
greatertha
orequalto40a
dchoosethemaximumofthemSeco
dlywefi
dthemaximumofmi
correspo
di
gtoa
yoscillati
ga
gle
4
f机械81001杨峰
5
扬州大学广陵学院
whichischose
bysmallstepi
thepermittedra
gemaximumofmi
isdiffere
toscillati
ga
glea
dthecoefficie
toftravelspeedvariatio
KFi
allywecha
gethele
gthofrockerl3bysmallstepsimilarlyThuswemayobtai
themaximumofmi
correspo
di
gtothediffere
tle
gthofbarsdiffere
toscillati
ga
glea
dthecoefficie
toftravelspeedvariatio
KFig3isaccomplishedfromTableforthepurposeofdiagramdesig

5
f机械81001杨峰
6
扬州大学广陵学院
Itisworthpoi
ti
goutthatwhateverthele
gthofrockerl3isevaluatedthelocatio
thatthemaximumofmi
arisesiso
lyrelatedtotheratioofthele
gthofrockera
dthele
gthofmachi
eframel3l4whilei
depe
de
tofl32DESIGNMETHOD21Realizi
gtheoptimaltra
smissio
desig
give
thecoefficie
toftravelspeedvariatio
a
dthemaximumoscillati
ga
gleoftherockerThedesig
procedureir