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Thursday, September 7, 2023
Simple calipers and vernier calipers, method of uses and calculations
Tuesday, September 5, 2023
Gears rotational speed and cylinder surface speed calculations ( spur gear, bevel gears, Worm, and worm gears)
Gears rotational speed calculation( spur gear, bevel gears, Worm, and worm gears)step 1
Motor rpm(M) = 1400, Motor pulley dia(A) = 40 cms
Machine pulley dia(B)= 20 cms, Machine pulley rpm=? rpm
Rpm (B) = (Motor rpm(M) * Motor pulley dia(A)/Machine
pulley
dia(B)
=(1400 *40)/20
Machine pulley(B) rpm= 2800
Gears rotational speed calculation( spur gear,
bevel gears, Worm, and worm gears)step 2
RPM gear( C ) = RPM ( B)= 2800, No. of teeth (gear C )
=25
No. of teeth (D )=60, RPM gear D =? RPM
RPM gear D = (RPM gear C * No. of teeth gear C )/No. of
teeth ( gear D )
=(2800 * 25)/60
RPM gear D = 1166.66
Gears rotational speed calculation( spur gear,
bevel gears, Worm, and worm gears)step 3
RPM bevel gear E=RPM gear D=1166.66,
Since bevel gear E is mounted on gear shaft of D, therefore rpm
of bevel gear E = RPM of D = 1166.66
No, of teeth in bevel gear E and F are equal to each other,
therefore rpm of bevel gear F = RPM of bevel gear E = 1166.66
Gear G is mounted on F, therefore rpm of G = rpm of F=
1166.66
Gears rotational speed calculation( spur gear,
bevel gears, Worm, and worm gears)step 4
Rpm gear G = 1166.66, No. of teeth grar G=25
No. of teeth gear H = 60, RPM of gear H = ?
RPM of gear H = (Rpm gear G * No. of teeth grar
G)/No. of teeth gear H
=(1166.66 *25)/60
RPM of gear H = 486.11
Gears rotational speed calculation( spur gear,
bevel gears, Worm, and worm gears)step 5
Since the single worm I is mounted on the gear shaft of H,
therefore rpm of single worm I = rpm of gear H = 486.11
No of teeth in worm gear J = 42, rpm of worm gear J = ?
rpm of worm gear J = (rpm of single worm I * 1 ) / No of teeth
in worm gear J
rpm of worm gear J =(486.11* 1 ) / 42
rpm of worm gear J = 11.57
Gears rotational speed calculation( spur gear,
bevel gears, Worm, and worm gears)step 6
Since the worm gear J and roller K are mounted upon same shaft,
therefore the rpm of Roller K = rpm of worm gear J = 11.57
Dia of roller K = 75 cms
Surface speed (K) = Rpm of K * 3.14 * dia of K
= 11.57 * 3.14 * 75
= 2724.73 CMS / Minute
Surface speed (K) = 27.25 meters / minte
Sunday, May 14, 2023
Thursday, May 11, 2023
Monday, May 8, 2023
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