kinematics of machine is the subject which is very important for the concept of mechanical engineering

1. G H PATEL COLLEGE OF ENGINEERING &
TECHNOLOGY
Active Learning Assignment
Subject: 2131906– kinematics of machine
IIIrd Semester, Academic Year 2015-16
Batch: 2C19
By:-
UttamTrasadiya
Mechanical engineering
Gcet college
Vvnagar.

2. Characteristics of involute and
cycloidal gear ,Interference and
undercutting ,Center distance
variation ,Minimum number of teeth
,Contact ratio.

3. -: CONTENTS :-

13. Number of teeth
The numbers NP {z1} and NG{z2} represent the
number of teeth on the ’pinion’ and ’gear’ respectively.
As a default the data of the pinion is input in the left
column, the data of the gear in the right column.
For spur gears you need a minimum number of 17
teeth to avoid undercut without any profile shift. You
can achive a smaller number of teeth with an
appropriate profile shift factor or using helical gears.

14. Contact Ratio
𝐴𝑟𝑐 𝑜𝑓 𝑐𝑜𝑛𝑡𝑎𝑐𝑡
𝑐𝑖𝑟𝑐𝑢𝑙𝑎𝑟 𝑝𝑖𝑡𝑐ℎ
=
𝐶𝐷
𝐶𝑜𝑠 𝜃 ∗ 𝑃

15. ---: Thank You:---