Topic:Different Types of Transmission (gearbox and screws) You have to explain also the principles of conversion of linear motion into rotary and vice versa. Focus your work on examples (roller...

Running Header: Motion Transmission systems – A Reflection
Title: Motion Transmission Systems – A Reflection
Presented By:
Presented To:
Date: 30/4/2017
























Motion transmission systems - A Reflection
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Motion transmission systems - A Reflection
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Table of Contents
Introduction: ................................................................................................................................................. 4
Linear motion: ........................................................................................................................................... 4
Conversion from linear to Rotary and from Rotary to linear motions: .................................................... 5
Concepts of motion transmission: ................................................................................................................ 6
Detailed analysis of the specific transmission systems: ............................................................................. 10
Roller Screw: ........................................................................................................................................... 10
Ball Screws: ............................................................................................................................................. 11
Gear boxes: ............................................................................................................................................. 12
Discussion in the context of major manufacturers (SKF, Nook and Maxon): ............................................. 13
Roller screws: .......................................................................................................................................... 13
Gea
oxes: .............................................................................................................................................. 15
Conclusion: .................................................................................................................................................. 16
References: ................................................................................................................................................. 17
List of Figures
Figure 1Rack and pinion motion ................................................................................................................... 5
Figure 2Rotary to linear motion .................................................................................................................... 5
Figure 3 Chain drive ...................................................................................................................................... 6
Figure 4Belt and Pulley drive ........................................................................................................................ 7
Figure 5 Gear Drive ....................................................................................................................................... 7
Figure 6 Friction disc Drives .......................................................................................................................... 8
Figure 7Pulley Rope systems......................................................................................................................... 8
Figure 8 A wrench drive to transfer rotary to linear motion ........................................................................ 9
Figure 9Cam and follower set-up .................................................................................................................. 9
Figure 10Roller screw .................................................................................................................................. 11
Figure 11 Ball screw .................................................................................................................................... 12
Figure 12 SKF ball screw .............................................................................................................................. 14
Figure 13 Nook Planetary roller screw ........................................................................................................ 14
Figure 14 GP 8S ceramic version of Maxon ball screw .............................................................................. 15
Figure 15 Maxon Compact Gea
ox ........................................................................................................... 16
Motion transmission systems - A Reflection
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Introduction:
Motion is a primary requirement of any engineering application. Entire mechanical engineering
applications are related with the generation of motion and using the motion for doing a useful work as
per the requirements. Hence invariably an engineering application requires to focus on the methods of
creation of a motion and manipulating this motion as per the engineering applications required. The
cu
ent part of the discussion will be focusing on the ways of creating models to manipulate different
types of motions useful ways. The primary concerns of the motion management is conversion of rotary
motion to linear motion and the conversion of linear motion to rotary motion.
Rotary motion: Rotary motion can be simply called as a motion in circle. It indicates that the motion
starts at a point and completes motion in circular path to reach the starting point. Rotary motion can be
seen in number of applications like that of a crank in an internal combustion engines. Also for example
the earth moves around the sun in almost rotary path (actually elliptical). The ends of the arms of a wall
clock depicts a rotary path and hence is a rotary motion. In any case a simple rotary motion will be
measured in terms of angular velocity, angular displacement etc. However there are methods exist to
convert rotary motion to the linear motion and again a linear motion can be covered to a rotary motion.
Linear motion:
Linear motion is actually depiction of motion in one particular direction. The movement of train on a
track is an example of linear motion. The motion of piston in a cylindrical block is an example of linear
motion. In either case there is nothing that it can be observed in terms of other dimensions like there...