Simple Gear-Trains

A Simple Gear Train is a number of Simple Gear-Pairs in series. Each Shaft has only one gear.

Use a Simple Gear Train:

The image to the left shows a Schematic of a Simple Gear Train.

Note:

MONOBLOC

This is a schematic of a 'Monobloc' machine, typical of Filling, Capping, Labelling, Coding, Orientating and many other high speed packaging applications.

It uses a Simple Gear Train to transmit the motion from one 'head' to the next.

See Also: the YouTube Video: http://youtu.be/fvRp2lC1aXw

See Also: Simple Gear-Pair, Compound Gear-Trains, Planetary Gear-Trains

Start with a Simple Gear-Pair with an External Mesh - see Option 1 Step 14.1

Here, the number-of-teeth are:

T1=20, T2=40. The Gear Ratio is T1/T2 = 2

Use the rule:

'Three Parts, with three Lines, joined together with two Pin-Joints'.

Again, we need three Lines, in separate Parts. The Parts must be joined with Pin-Joints. The Pin-Joints must use the Points at the end of each Line.

Stage 2: Line 1 and Part 1

The Part that we need for Gear 1 of the Stage 2 is the Output Shaft the first Gear-Pair.

We do not need to add Line 1 in Part 1 because we can use Part .

Stage 2: Line 2 and Part 2

'Line-of-centres'.

It is in the Base-Part.

1.	Edit the Base-Part

2.	Add a Line

It does not matter how long

3.	Use Merge-Points to merge the Point and a Point at the end of the new Line

Line 3 and Part 3

5.	Add and Join a Part to the end of the new Line, with a Pin-Joint.

The length of Part is not important.

Add Stage 2 Gear-Pair:

You can see the Stage 2 Gear-Pair

MechDesigner adds two gears.

For a Simple Gear Train, we do not need one of the Gears in the Stage 2 Gear-Pair.

We must hide the Gear on the same shaft centre.

This is a MechDesigner trick.

Use the Gear-Pair dialog-box to edit:

The image shows the Gear-Pairs Stage 1 and Stage 2: Gear-Pair , Gear-Pair

Preparation of Model to add the Third Gear-Pair.

You can see the new Gear-Pair, , Stage 3

The default module of the Gear-Pair Stage 3 is different to the Gear-Pairs of Stage 1 and 2.

To 'hide' the Gear we do not want to see, use the Gear-Pair dialog to edit the:

Also, edit:

The image shows the Three Gear-Pairs: Gear-Pair , Gear-Pair , and Gear-Pair