Uni-UAV ~ Power Train - Reduction - Final

Overview:

Use angular spiral bevel gear.

Picture:

Eventually

 

 Working Papers:

 

DESIGN:

 

MAKE:

 

 

Items:

DESIGN:

 

Name

Item

 

 

 

MAKE:

 

Name

Item

 

 

 

BUY:

 

Name

Item

 

 

 

Item page stuff.

4:1 intermediate to rotorhub. Or is it to be 3:1.

FORM: Arrow Spiral Stock Gear Selection.

This is for 3:1 for the basic and smallest Arrow gear 10.0 PD, 16/48 tooth. 10P45L15 & 10P15R45. Spiral bevel.

 

Horsepower:

11.4

hp

 

Pinion Speed:

1288

rpm

 

Pinion Working Torque:

558

in-lb

 

Estimated Rated Pinion Torque:

1116

in-lb

 

Catalog Rated Pinion Torque:

540

in-lb

 

Catalog Pinion Pitch Diameter:

1.5

in

 

Pitch Line Velocity:

506

ft/min

 

Dynamic Factor:

0.881

 

 

Allowable Pinion Torque:

476

in-lb

 

Service Factor:

.853

:1

FORM: Hamilton Bevel Gear Selection.

This is for Rush Gears page 557, Straight teeth

 

Pinion Speed

1289

 

rpm

 

 

Catalog Pinion Pitch Dia.

1.5

 

in.

 

 

Pitch Line Velocity

507

 

ft/min

 

 

Diametral Pitch

12

 

 

 

 

Face Width

0.61

 

in

 

 

Allowable Contact Stress

200,000

 

Steel Rockwell 55 min.

 

 

Allowable Bending Stress

300,000

 

Steel Rockwell C 55 min.

 

 

Elastic Coefficient

Pinion & Gear - Steel

 

 

 

 

Load Distribution Factor

Neither member straddle mounted

 

 

 

 

Geometry Factor [I]

.074

 

 

 

 

Geometry Factor [J]

.225

 

 

 

 

Durability

4.0

 

hp. Service factor is 0.35 (1)

 

 

Strength

7.4

 

hp. Service factor is 0.65 (1)

 

 

See form for additional data.

 

 

 

(1) The horsepower is 11.4 going to each rotor.  

Spiral Bevel Gears Reduction:

Same Page ~ Different Craft:

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Introduction Page | Uni-UAV Home Page | UniCopter Home Page | Nemesis Home Page | SynchroLite Home Page

Latest revision; August 28, 2007