Gear Box
you can increase speed by increasing Drive pulley diameter
A R SINGH ■
Re: Gearbox Replacement
KAMLESH
The following information is required to calculate the belt speed;
1 - Nameplate RPM of motor
2 - Driver and driven sheave ratio (1 if no sheaves)
3 - Reducer ratio
4 - Head pulley diameter
Formula for belt speed = Motor RPM x sheave ratio x reducer ratio x 3.1416(pi) x pulley diameter. (pulley diameter is in same units as belt speed) ie: feet or meters
If you have sheaves between the motor and the gearbox you can change the sheave ratio to increase the speed. The only other option is to increase the drive pulley diameter as Mr. Singh has already referred to.
Gary ■
Gary Blenkhorn
President - Bulk Handlng Technology Inc.
Email: garyblenkhorn@gmail.com
Linkedin Profile: http://www.linkedin.com/in/gary-blenkhorn-6286954b
Offering Conveyor Design Services, Conveyor Transfer Design Services and SolidWorks Design Services for equipment layouts.
Re: Gearbox Replacement
In last post item 4 should read "Dive pulley diameter"
Sorry
Gary ■
Gary Blenkhorn
President - Bulk Handlng Technology Inc.
Email: garyblenkhorn@gmail.com
Linkedin Profile: http://www.linkedin.com/in/gary-blenkhorn-6286954b
Offering Conveyor Design Services, Conveyor Transfer Design Services and SolidWorks Design Services for equipment layouts.
Re: Gearbox Replacement
KAMLESH
I just thought of another option.
Relocate the gearbox and install a chain drive from gearbox to the drive pulley with a 2:1 ratio (or whatever you want the final speed to be).
I am of course assuming that this is a low speed coupled drive. If this is a shaft mount drive than this option will not work.
Gary ■
Gary Blenkhorn
President - Bulk Handlng Technology Inc.
Email: garyblenkhorn@gmail.com
Linkedin Profile: http://www.linkedin.com/in/gary-blenkhorn-6286954b
Offering Conveyor Design Services, Conveyor Transfer Design Services and SolidWorks Design Services for equipment layouts.
Re: Gearbox Replacement
we have decided to increase the diameter of the drive pulley to get the required speed...
i would like to thank everyone for their help ■
Gearbox replacement
Recently we changed one of our gearbox on a conveyor belt. But we replaced it with a differrent gearbox with a different ratio.
here are the specifications:
1. Belt length = 240 feet
2. Belt width = 48 inches
3. old gearbox model # = 2T225
4. Ratio = 20.2:1
5. Motor Hp = 125
new gearbox model # = 405 A3 and ratio= 31.03:1
Of course the speed was reduced by half... is there a method of calulating the speed with the above information.
what can we do to increase the speed to the original with the new gearbox without changing the motor ? ■