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29+ years experience in textile industry. The place where you can find practical solution of your problems. Consultancy service available for new and cost effective weaving and processing projects, efficiency ,product quality optimization. Fabric and yarn sourcing available. The online group classes are available for textile technology students and individuals who wants to earn knowledge before settling up their startup (textile business)
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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