Why involute tooth profile is widely used for gear?

Why involute tooth profile is widely used for gear?

That is, a gear’s profile does not depend on the gear it mates with. Thus, n and m tooth involute spur gears with a given pressure angle and pitch will mate correctly, independently of n and m. This dramatically reduces the number of shapes of gears that need to be manufactured and kept in inventory.

How do you draw gear in CAD?

Tutorial – Making spur gear in AutoCAD?

1. Start AutoCAD.
2. Make 2 circles.
3. Make the profile of the gear tooth spaces.
4. Trim the circles side ways.
5. Now enter “bo” command. It will show the boundary creation dialogue.
6. Click inside the region and then press enter.
7. Now we have the polyline created.
8. Make a circle of 50mm radius.

How do you find the involute of a circle?

Circle Involute: x = r (cos t + t sin t) , y = r (sin t – t cos t), where, r = radius of the circle, t = parameter of angle in radian.

How do you involute a tooth profile?

First, divide a cylinder into eight equal parts. Then, from each part unwrap a cord drawing a line with a pencil. After you have completed eight lines, do the same manual work from the opposite side. The diagram thus drawn is the involute tooth profile.

What is involute in engineering drawing?

Involute is a special branch of geometry dealing with the study of differential geometry of curves. Attach an imaginary string to a point on a curve. Extending the string wide and unwinding it on the given curves keeps the string always taut.

How to model involute gears in SolidWorks and show design intent?

Tutorial: How to model involute gears in SolidWorks and show design intent. 1) Make a sketch with a circle on the front plane. This represents the pitch circle that defines the centre of the tooth in radial direction. Dimension it. I chose a Pitch diameter, P=76 mm, but obviously you can choose any value.

How do you make a gear wheel float in AutoCAD?

Right-click on the first gear wheel (the one with that has (f) in front of its name) and choose “Float”. 56) Now it can move everywhere so we need to fix it so it can only rotate.

How do you move gears in AutoCAD?

63) Rotate one of the gear wheels so they do not touch. 64) Choose “Tools->Component->Move” from the top menu. 65) Click the radio button for “Physical Dynamics”. 66) Click and drag one of the gears, and observe that the other gear follows along and the involutes mesh very nicely. You can go backwards and forwards.

https://www.youtube.com/watch?v=uj7BnldaOSc