Any referenced datasets can be downloaded from "Module downloads" in the module overview.
Insert a belt drive - Exercise
From the project files, open Belt Driven Gear Reducer 3.dwg.
In the Content tab>Calculation panel, click the drop-down arrow next to Chains/Belts and select Sprocket/Pulley.
In the Select Pulley and Sprocket dialog box, select Pulleys>Synchronous Belt pulley.
To place the pulley in the drawing, at the Specify center of wheel prompt, select the center of the top circle, as shown below.
At the Specify rotation angle prompt, press <Enter> to accept the default value of 0, as shown below.
In the Synchronous Belt pulley dialog box, on the Size tab, select H 075 24 from the Size x No. of teeth list and click Next.
On the Geometry tab, set the Number of Visible Teeth to 3 and the Shaft Diameter to .5, then click Finish.
In the Hide Situation dialog box, verify that Display hidden lines is unchecked, as shown below, and click OK.
In the Content tab>Calculation panel, click the drop-down arrow next to Chains/Belts and select Sprocket/Pulley.
In the Select Pulley and Sprocket dialog box, select Synchronous Belt pulley.
To place the pulley in the drawing, at the Specify center of wheel prompt, select the center point of the circle of HOLE 5:1 of the FRONT view of the STAND, as shown below.
At the Specify rotation angle prompt, accept the default value of 0.
In the Synchronous Belt pulley dialog box, on the Size tab, select H 075 48 from the Size x No. of teeth list and click Next.
On the Geometry tab, set the Number of Visible Teeth to 3 and the Shaft Diameter to .75, then click Finish.
In the Hide Situation dialog box, verify that Display hidden lines is unchecked and click OK.
In the Content tab>Calculation panel, click the drop-down arrow next to Chains/Belts and select Length Calculation.
In the Belt and Chain Length Calculation dialog box, ensure the New Tangent Definition between Sprocket/Pulley option is checked and the Belt option is selected, then click Library…
In the Select a Belt dialog box, select Synchronous belt.
In the Select Part Size dialog box, select the row with Belt length = 33, Thread Run-out = 0.16, Standard = 330H075 – ANSI/RMP IP-24, and Description = Synchronous belt (as shown below), and click OK.
In the Belt and Chain Length Calculation dialog box, select Auto.Optimization and Rotation. Check the checkboxes for Sprocket/Pulley for Move/Rotation and Center Point for Rotation and click OK.
For the first belt section, at the Specify 1st point for tangent prompt, select the upper-left quadrant of PULLEY 1:1 that you inserted earlier, as shown below.
For the first belt section, at the Specify 2nd point for tangent prompt, select the upper-left quadrant of PULLEY 2:1 that you inserted earlier, as shown below.
For the second belt section, at the Specify 1st point for tangent prompt, select the upper-right quadrant of PULLEY 2:1, as shown below.
For the second belt section, at the Specify 2nd point for tangent prompt, select the lower-left quadrant of the BELT DRIVE:1, as shown below.
For the third belt section, at the Specify 1st point for tangent prompt, select the upper-left quadrant of the BELT DRIVE:1, as shown below.
For the third belt section, at the Specify 2nd point for tangent prompt, select the lower-left quadrant of the PULLEY 1:1, as shown below.
With all three sections of the belt placed in the drawing, at the Specify 1st point for tangent prompt, right-click the mouse.
At the Select pulleys or sprockets to be moved. Select objects prompt, select the two circles of BELT DRIVE:1, as shown below.
To complete the task of selecting objects to be moved, right-click the mouse.
At the Specify pivot point prompt, select the intersection of the two centerlines of HEX FLANGE SCREW – REGULAR THREAD – INCH 1:1, as shown below.
If returned to the Belt and Chain Length Calculation dialog box, click Cancel to exit.
In the Content tab>Calculation panel, click the drop-down arrow next to Chains/Belts and select Chain/Belt Links.
In the Select Belt and Chain dialog box, select Belts.
At the Select polyline prompt, select the top of the red polyline that represents the belt length that was just added, as shown below.
At the Select starting point on polyline prompt, select the intersection of the top of the red polyline that represents the belt length and the vertical centerline, as shown below.
In the BELTS dialog box, on the Size tab, ensure the 330H075 – ANSI/RMP IP-24 size is selected and click Next.
On the Geometry tab, change the Number of Links to Draw to 50, then click Finish.
At the Specify Direction of Links prompt, if the blue direction arrow is pointing to the left, choose the Flip option, as shown below.
At the Specify Direction of Links prompt, if the blue direction arrow is pointing to the right, choose the Accept option, as shown below.
At the Specify Orientation of Links prompt, and with the blue arrow pointing down, choose the Accept option, as shown in the image below.
In the Hide Situation dialog box, verify that the Display hidden lines option is unchecked, then click OK.
