brakes and dynamometers
TRANSCRIPT
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BRAKES AND
DYNAMOMETERS
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What is brake
A brake is a mechanical device which
r!d"ce #ricti!nal resistance a$ainst
m!vin$ machine member% in !rder t!
st! the m!ti!n !# machine
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&aacit' !# brake deends !n
(nit ress"re between the brakin$ s"r#aces)
The c!e##icient !# #ricti!n between the brakin$ s"r#aces)
The eriheral vel!cit' !# the brake dr"m)
The r!*ected area !# the #ricti!n s"r#aces)
+eat dissiatin$ caacit' !# brake)
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&+ARA&TER,ST,& O- BRAK,N.
MATER,A/
+i$h c!e##icient !# #ricti!n)
/!w wear rate)
+i$h heat resistance)
hi$h heat dissiati!n caacit')
hi$h mechanical stren$th)
N!t a##ected b' m!ist"re and !il
Material "sed #!r brake linin$ are 012 br!n3e in &), 042 Steel !n &),
052 W!!d !n &), 062 /eather !n Metal
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T'es7&lassi#icati!n !# brakes)
Brakes
Mechanical
brakes
A8ial
brakes
Disc
brake
&!ne
brake
Radial
brakes
Bl!ck
brakes
Sin$le
bl!ck
D!"ble
bl!ck
Band
brakes
Simle
band brake
Di##erentia
Band brake
+'dra"lic
brakes
Electric
brakes
http://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptx -
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Bl!ck brake
0a2 Sin$le bl!ck brake 0b2 D!"ble bl!ck brake
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Sin$le bl!ck brake
&ase91
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&ase94
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&ase95
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:iv!ted bl!ck7sh!e brake
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D!"ble bl!ck sh!e brake
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Simle band brake
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,nternal e8andin$ brake
http://var/www/apps/conversion/tmp/scratch_1/shoe%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/shoe%20brake.pptx -
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d'nam!meter
D'nam!meter is a device t! meas"re the #ricti!nal resistance )Kn!win$ the -ricti!nal resistance% we ma' !btain the t!r;"e
transmitted and hence the !wer !# the en$ine)
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DYNAMOMETER
ABSOR:T,ON DYNAMOMETER
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