A gearbox is needed to connect a 100 hp, 3,600 rpm motor to a load shaft...

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A gearbox is needed to connect a 100 hp, 3,600 rpm motor to a load shaft rotating at angular velocity mentioned in the table. The center distance between the motor-shaft and load shaft is to be kept as small as reasonably possible. A life of 8 years with 1,200 hours/ year is desired. Light to Moderate shock loading is present. Torque variations at 100 hp can be considered to be negligible. A safety factor of at least 2.5 must be realized for all components. A reliability of 95% is required. Size is the primary concern. The bearings from the attached catalog are freely available so a design restriction is that you can only choose the bearings from the attached catalog. W100 hp 3000 rpm Design Requirements Your design must specify: Gears: . மறீயாம் Load Shaft Velocity (rpm) Pressure system and materials used Diametral pitch (or module), teeth number, contact ratio • Pitch, base diameters and center-to-center distance . Face width Realized factor of safety for bending and surface failure of teeth ‒‒‒‒‒‒‒‒ Group Number 1,5,9 2, 6, 10 3, 7, 11 4, 8, 12 Hints 1. Shaft and Key(s): • Material, geometry with various diameters and lengths identified Identification of critically loaded element and realized factors of safety Key type, material and length • Bearings: Load Shaft Velocity 800 rpm 2,400 rpm 1,800 rpm 1,200 rpm Type and size of bearings from the attached catalog. Also specify the approximate dimensions of the gearbox (width/length). Allow some shaft extensions for input/output connections. Suggest couplings for the input and output. Design the gears. Use 20° pressure system with full-size teeth. Choose surface-hardened steel material for both pinion and gear 2. Use keys to transmit torque to shafts 3. Sketch shaft outline and location of bearings, keyways 4. Design shaft and choose bearings; Try 1040 cold-rolled carbon steel (S,= 490 MPa, S= 586 MPa) for the shaft. Use shoulders for axial location and axial load transmissions to bearings. Even Spur gears tend to produce some amount of axial forces due to manufacturing and mounting imprecision. So choose deep-groove ball bearings. 1 A gearbox is needed to connect a 100 hp, 3,600 rpm motor to a load shaft rotating at angular velocity mentioned in the table. The center distance between the motor-shaft and load shaft is to be kept as small as reasonably possible. A life of 8 years with 1,200 hours/ year is desired. Light to Moderate shock loading is present. Torque variations at 100 hp can be considered to be negligible. A safety factor of at least 2.5 must be realized for all components. A reliability of 95% is required. Size is the primary concern. The bearings from the attached catalog are freely available so a design restriction is that you can only choose the bearings from the attached catalog. W100 hp 3000 rpm Design Requirements Your design must specify: Gears: . மறீயாம் Load Shaft Velocity (rpm) Pressure system and materials used Diametral pitch (or module), teeth number, contact ratio • Pitch, base diameters and center-to-center distance . Face width Realized factor of safety for bending and surface failure of teeth ‒‒‒‒‒‒‒‒ Group Number 1,5,9 2, 6, 10 3, 7, 11 4, 8, 12 Hints 1. Shaft and Key(s): • Material, geometry with various diameters and lengths identified Identification of critically loaded element and realized factors of safety Key type, material and length • Bearings: Load Shaft Velocity 800 rpm 2,400 rpm 1,800 rpm 1,200 rpm Type and size of bearings from the attached catalog. Also specify the approximate dimensions of the gearbox (width/length). Allow some shaft extensions for input/output connections. Suggest couplings for the input and output. Design the gears. Use 20° pressure system with full-size teeth. Choose surface-hardened steel material for both pinion and gear 2. Use keys to transmit torque to shafts 3. Sketch shaft outline and location of bearings, keyways 4. Design shaft and choose bearings; Try 1040 cold-rolled carbon steel (S,= 490 MPa, S= 586 MPa) for the shaft. Use shoulders for axial location and axial load transmissions to bearings. Even Spur gears tend to produce some amount of axial forces due to manufacturing and mounting imprecision. So choose deep-groove ball bearings. 1

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To design a gearbox that connects a 100 hp 3600 rpm motor to a load shaft rotating at angular velocity mentioned in the table we need to consider the following factors 1 Gear design We can use a 20 pr... View the full answer