mech215 mechanical design 1design project 1 one-stage helical gear drives: kinematic design & bearing selection grant mcintyre

MECH215
MECHANICAL
DESIGN 1
DESIGN
Design Project1 1
DESIGN
Design Project1
One-Stage Helical Gear Drives:
1
Kinematic Design & Bearing Selection
Grant McIntyre

DESIGN
Design
6563235 Project
Grant McIntyre
1 1
Design Project 1
6563235

Grant McIntyre
6563235
oject 1
One-Stage Helical Gear Drives:
Grant McIntyre
6563235
Kinematic Design & Bearing Selection
Design Project 1
Grant McIntyre
6563235 1

, 2



Design Requirements
Maxon brushless DC motor – EC90 flat ⌀90mm, brushless, 260W with hall sensors.
PT# 500269

Technical Specifications
Normal Voltage 18V Max. Efficiency 87%
No Load Speed 2110rpm Ambient Temperature -40-+100⁰C
No Load Current 830mA Max, Winding Temperature +125⁰C
Nominal Speed 1790rpm Max Speed 5000rpm
Nominal Torque 1010mNm Stall Torque 14800mNm
Normal Current 12.1A Stall Current 183A
Axial Play 0.14@40N Max. Force for fits (static) 440N
(Static, shaft supported) 8000N
Max. Axial Load(dynamic) 34N Max. Radial Load 130N @
10mm

Design Specifications
Speed of Input Shaft 1790rpm
Torque on Input Shaft 1.01Nm




Kinematic Design of the Gear Reducer
Design Requirements
Parallel Shafts
Gear Module 1.5mm
Gear Ratio (+/- 5%) 4.5
Nominal Centre Distance of
Shafts 91.5mm

Gear Specifications
KHG1.5-22RJ12 KHG1.5-100LJ20
Number of Teeth 22 Number of Teeth 100
Helix Direction Right Helix Direction Right
Normal Pressure Angle øn 18.71⁰ Normal Pressure Angle øn 18.71⁰
Helix Angle ᵠ 21.5⁰ Helix Angle ᵠ 21.5⁰
Transverse Pressure Angle øt 20⁰ Transverse Pressure Angle øt 20⁰
Pitch Diameter 33mm Pitch Diameter 150mm




Grant McIntyre 6563235