How to draw a rack and pinion in solidworks2011

Gears can be drawn out of CAXA, saved in DWG format, and then opened, stretched, and formed from SOLIDWORKS.

The point is that the involute is easy to get the rest You can check the information to see how the involute came to understand at a glance I can't say a few words In addition, the gear is a standard part that can be automatically generated What else to draw.

To make the SOLIDWORKS gears turn, the gears need to be inserted into the assembly. A SOLIDWORKS part can also be an assembly.

After the assembly of the gear, drag it with the mouse to rotate, and you can see that the gear can be rotated. The assembly method is as follows:

1. Create a new assembly file.

2. Select two datum planes to assume that the front datum and the upper datum are the front datum plane, and insert a datum axis.

3. Insert components into the assembly and select gears.

4. Click the mate command, select the datum shaft you just inserted and the datum shaft or temporary shaft of the gear, the mate type is coincident, and click OK.

5. The other fit is the positioning fit of the gear plane, which is generally the datum plane of gear stretching, if the stretching of both sides is symmetrical, the datum is used, and then the datum of the same name of the assembly is selected, and the name of the fit type coincides.

6. Create a motion study, add a motor, and click the gear end face.

Once the setting is complete, the gear rotation is complete.

To do this, we need to add the "Rotary Motor" in the "Motor" to the animation.

1. Open SOLIDWORKS 2016.

2. Click "Design Library" next to it.

3. Click "Toolbox", now my Toolbox is not inserted, click "Insert Now".

4. You can see that there are many standards to choose from, here we choose "GB".

5. Select the "Power Transmission" file here for imitation clip.

6. Open the "gear" imitation clip, there are a variety of gears to choose from.

7. Select "Straight Miter Gear", right-click, and select "Generate Part".

8. The "propertymanager" on the left can adjust the parameters of the part, and a gear is well drawn.

1. Enter the straight line command "L" in the SOLIDWORKS drawing state to confirm.

2. After entering, click the left button to determine the first point, and then pull the cursor diagonally to see the angled input box.

3. If the diagonal cursor does not appear in the above figure, it means that you have opened the "Orthogonal" in the toolbar at the bottom of the screen and click the "Orthogonal" button to switch the state.

4. Because it is any length, you don't care about the first input box, press the tab key directly to switch to the angle input, and enter 45 degrees to enter.

5. After entering the angle, you will see that there is an extension line behind you, if you want to continue drawing, then enter the length and angle, if you don't draw again, press enter again to end the straight line command, you can complete the drawing of the helical rack and pinion.

There is a mechanical fit option in the fit, there is a gear fit in it, when you choose, you should choose the root circle or the same position on the other two circles, fill in the ratio of the number of teeth of the two gears to match, if the direction is not right, you can choose to reverse.

Note that the most important thing in operation is to choose the mechanical fit, select the indexing circle of the two gears (if you have drawn it when building the gear model, it doesn't matter if you don't draw it at that time, you can choose the tooth top circle or the tooth root circle, that is, choose the small arc on a tooth), at this time, no matter which circle is selected, the preliminary fit has been done, drag one gear, and the other gear will follow;

If the transmission ratio and movement speed are not accurate after matching, it may be caused by not selecting the indexing circle, and it should be modified. That is, when selecting a circle, there will be two numbers corresponding to the left toolbar, which are the diameter of the selected indexing circle, if you select the tooth top circle or something, the value is incorrect, but you can modify it by handwriting. After the modification, the speed of rotation is correct when mating.