2013/2/1The manual of timing belt (multi axes) designing program

Installation1. Download and unzip the installer of timing belt (multi axes) designing program.

Installation will be started by double-clicking the installer.You may follow some instructions on the display to finish the setup.(See download page of our Homepage for detailed procedure.)

2. The normal installation directory and file name of the program are following.Directory C:\Program Files\MITSUBOSHIBELTING\TG_MultiAxes\File name TG_MultiAxes_E.exe

3. If you want to uninstall the program, use the "Add/Remove Programs" utilityin the Microsoft Windows Control Panel.

Table of contents

1. Designing of timing belt1.1 Input process

1.1.1 Selection of the belt type1.1.2 Input of the layout1.1.3 Drawing of the layout1.1.4 Selection of the proper size tooth profile1.1.5 Setting of Service Factor

1.2 Input of power conditions

1.3 Calculation results of layout and powers

1.4 The drawing of the layout

1.5 The calculation of tensions

1.6 Printing

1.7 Save and load of the calculation data

2. Length calculation program2.1 Composition of the layout

2.1.1 Selection of the belt type2.1.2 Input of the layout2.1.3 Calculation results

2.2 Adjustment of the layout2.2.1 To rotate the swing arm pulley by clicking the drawing 2.2.2 To rotate the swing arm pulley by assignment of belt length2.2.3 To move pulleys linearly by assignment of belt length2.2.4 To move pulleys freely

2.3 Spring force calculation of swing arm pulley

2.4 Zoom of the drawing

2.5 Printing

2.6 Save and load of the calculation data

1. Designing of timing belt1.1 Input process

The input screen of the timing belt designing program is following.

Figure 1. The Input Screen of the Timing Belt Designing Program

1.1.1 Selection of the belt typeSelect the belt kind and belt type from pull-down menu.Selectable items are shown in the following table. ○：選択可，　×：選択不可

Kind Type Single Timing Double Timing Rubber Urethan Trapezoidal ＭＸＬ ○ ○ ○ ○

ＸＬ ○ × ○ ×

Ｌ ○ ○ ○ ○

Ｈ ○ ○ ○ ×

ＸＨ ○ × ○ ×

ＸＸＨ ○ × ○ ×

Ｔ５ ○ ○ × ○

Ｔ１０ ○ ○ × ○ STPD Ｓ２Ｍ ○ × ○ ○

Ｓ３Ｍ ○ ○ ○ ○

Ｓ５Ｍ ○ ○ ○ ×

Ｓ８Ｍ ○ ○ ○ ×

Ｓ１４Ｍ ○ ○ ○ ×

MegaTorque U ＭＴＳ８Ｍ (U) ○ × × ○

MegaTorque G ＭＴＳ５Ｍ (G) ○ × ○ ×

ＭＴＳ８Ｍ (G) ○ × ○ ×

ＭＴＳ１４Ｍ (G) ○ × ○ ×

MegaTorque G2 ＭＴＳ８Ｍ (G2) ○ × ○ ×

ＭＴＳ１４Ｍ (G2) ○ × ○ × GigaTorque GX Ｇ８Ｍ ○ × ○ ×

Ｇ１４Ｍ ○ × ○ ×

1.1.1Selection of the belt type

1.1.2Input of the layout

1.1.2 Input of the layoutInput teeth numbers and coordinates of pulleys.Keep the following attentions which appear when you click on the inputting table.

Figure 2. The Attention Window to Input Layout

1.1.3 Drawing of the layoutAfter you finish inputting layout conditions, click on the "Draw LayOut" button.The teeth number of stock pulley is shown with red numerals.(Please reconfirm in the catalog whether the pulley is stocked or not.)

Figure 3. The Result of Multi Axes Designing

Re-Input layout : When you want to change the layout, click on the "Re-Input layout" button before you re-input data to the table.(If you re-input data to the tabel without clicking on the "Re-Input layout" button,pitch diameter would not be calculated which leads up to calculation error.)After you re-input the data to the table, click on the "Draw LayOut" button.

Power Input : The table to input power conditions appears.How to use power condition table is detailed at section 1.2.

ALL CLEAR : Clear all input data.

You can save and load of the layout data from the File menu of Menu Bar.Data are saved as original file format whose extension is *.tgd.

1.1.4 Selection of the proper size tooth profileConfirm the tooth profile you input at section 1.1.1 is proper or not.Click on the Belt type selection chart of Menu Bar to launch the selection chart.If the input tooth profile is improper, start all over again.

*If the Service Factor exceeds the data in Figure 4. below or if you need to reduce the belts width of S8M/S14M/MTS8M/MTS14M belt types, select the MegaTorque G2 or Gigatorque GX.

Figure 4. The Selection Chart of STPD Tooth Profile

Figure 5. The Selection Chart of Trapezoidal Tooth Profile

1.1.5 Setting of Service Factor

Figure 6. The Input Screen to Set the Service Factor

①Types of Driven Machines (Required)Select the machine type which you use the timing belt. If the machine is not found in the table, select the similar torque group machinery.

②Types of driving units (Required)Select the type of the driving unit based on the maximum power.

③Types of work (Required)Select the hours of operation each day.

④Correction coefficient for speed ratio (Optional)Check the box of speed ratio of driver and driven pulleys.

⑤Correction coefficient for idler pulley (Optional)Check the box if the idler pulley is used.

After you finish the selection from ① to ③ (optionally to ⑤),the TOTAL SERVICE FACTORS is calculated automatically.Click on the "APPLY" button to reflect the calculation result to the main screen.

① ②

③④

⑤

Figure 7. The Input Screen to Set the Service Factor for GigaTorque GX

1.2 Input of power conditionsA table to input power conditions is launched by clicking the "Power Input" button.Input value or select Service factor, Power UNIT, and Revolution direction from pull-down menubefore you input to the table. You can select service factor from pull-down menu or use subroutineby clicking on the "Service factor" of Menu Bar.The sum of using ratio should be 100%.

Figure 8. The Input Screen of Power Conditions

After you finish inputting power conditions, click on the "NEXT" button to go to the next step.

1.3 Calculation results of layout and powersAt first, this table is blank or shows the results of the previous calculation, so please click on the "Calculate" buttonto do the calculation under the present conditions.In the case of you repeat calculations, be careful of the shown results were calculated under conscious conditions.

Figure 9. Calculation Results of Layout and Powers

Calculation items are following.

Layout / Length : Number of teeth, Pitch diameter, X coordinate, Y coordinate, Arc of contact, Teeth in meshing, Span length, Center distance (distance between pulley center)

Velocity / Revolutions : Velocity of the belt(m/s), revolutions of pulleysDesign Power : Design power of pulleys and their possessional ratio.Effective Tension : Effective pull force of each pulley.

Click on the "NEXT" button to go to the next step.

1.4 The drawing of the layoutThe drawing of the layout is shown by clicking on the "Show the LayOut" button.

Figure 10. The Drawing of the Layout

Click on the "NEXT" button to go to the next step.

1.5 The calculation of tensionsAt first, this table is blank or shows the results of the previous calculation, so please click on the "Calculate" buttonto do the calculation under the present conditions.In the case of you repeat calculations, be careful of the shown results were calculated under conscious conditions.

Figure 11. Calculation Results of Tensions with Standard Belt Width

Input belt width which you want to calculate belt tensions to the box ①.If you click on the "Calculate" button without inputting to the box ①, standard belt width is filled in automatically.

You can select the conditions to set the belt tension in the tabel ②.

Input belt width should be bigger than the required belt width which is shown with red numerals.It is favored to input stocked belt width which is shown above the box ①.In this example, 14.74mm belt width is required, and 15mm width of the belt is stocked.Therefore, input 15 to the box ①, then click on the "Calculate" button.The figure of calculation results is shown in the next page.

②

Theoretical It is applied to the layout without spring tensioner. Tensions are calculated tothe tension of the slack span become 0(N).

Initial TensionIt is applied to the layout without spring tensioner. Tensions are calculatedbased on assigned initial tension. The initial tension should be assigned to thetension of the slack span become positive.

Theoretical with Spring It is applied to the layout with spring tensioner. Tensions are calculated to thetension of the slack span become 0(N).

Initial Tension with SpringIt is applied to the layout with spring tensioner. Tensions are calculated basedon the initial tension which is given by the spring. The initial tension should beassigned to the tension of the slack span become positive.

①

Figure 12. Calculation Results of Tensions with Assigned Belt Width

Calculation results of initial tension, shaft load, deflection force etc. are changedbased on assigned belt width.Calculation results are divided into two groups. They are calculated with different initial tensionswhich are shown in the following table.

Calculation results on deflection length, force and shaft load can be displayed based on Elementary Width or Load.

In the case of MegaTorque G, initial tension with blue color are multiplied by the following correction coefficient.

By using scroll bar located on the right of the window, you can check the average tooth load andallowable power ratings.

Revolutions correction coefficient

～200rpm 1.5200～500rpm 1.3500～1000rpm 1.15

1000rpm～ 1

Color of characters Initial tension

Black Calculated to the tension of the last slack span become 0(N).

Blue The values which are indicated in our catalog. They are set to belts keepappropriate meshing with pulleys. (Recommend)

1.6 PrintingFrom the screen of figure 9, you can print out layout table (pulley diameter, coordinates etc.) anddrawing of the layout.

From the screen of figure 10, you can print out layout table (pulley diameter, coordinates etc.) andcalculation results.

1.7 Save and load of the calculation dataFrom the screen of figure 7, you can save data as original file form whose extension is *.tgd

From the screen of figure 10, you can save data as csv or text file form.

You can load the saved data by selecting "File">"Open" from Menu Bar.

2. Length calculation programClick "Layout" of Menu Bar to launch length calculation program.The input screen of the length calculation program is following.

Figure 13. The Input Screen of the Length Calculation Program

2.1 Composition of the layout2.1.1 Selection of the belt type

Figure 14. Selection of the Belt Type

Select the belt type and tooth profile in the table of the top.In this example, S8M-Single is selected.Selectable tooth profiles are shown in the following table.

Trapezoidal STPD MegaTorque MegaTorque MegaTorque GigaTorqueＭＸＬ Ｓ２Ｍ ＭＴＳ８Ｍ（Ｕ） ＭＴＳ５Ｍ（Ｇ） ＭＴＳ８Ｍ（Ｇ２） Ｇ８ＭＸＬ Ｓ３Ｍ ＭＴＳ８Ｍ（Ｇ） ＭＴＳ１４Ｍ（Ｇ２） Ｇ１４ＭＬ Ｓ５Ｍ ＭＴＳ１４Ｍ（Ｇ）Ｈ Ｓ８Ｍ

ＸＨ Ｓ１４ＭＸＸＨＴ５

Ｔ１０

2.1.2 Input of the layoutInput teeth numbers and coordinates of pulleys.Keep the following attentions which appear when you click on the inputting table.

Figure 14. The Attention Window to Input Layout

To ”No. of Teeth" column, input the teeth number of each pulley. Pitch diameter is calculated automatically.(You can also select the pulley teeth number from the Stock Pulley List bottom of the window.)To X coord. and Y coord. columns, input coordinates of the center of pulleys.Input pulley outside diameter with minus sign to Pitch.D column to use backside flat pulley.Input teeth number with minus sign to No. of Teeth column to use backside toothed pulley.Start data input with the driver pulley and the order of other pulleys should be clockwise (right-handed).Input data to "ARM ROTATION" table to use swing arm pulley.Red numerals of "No. of Teeth" column reveal that the pulley is stocked.

After you input all data, click on the "Calculate" button to display layout drawing and Belt Length.

2.1.3 Calculation results

Figure 15. Calculation Results and Layout Drawing

The driver pulley is shown with red, and backside pulley is shown with blue, and another pulley is shown with yellow.

In this program, swing arm pulley is located on the right of the arm pivot, first.You can adjust the position of the swing arm pulley.In this example, #2 and #4 pulleys touch each other. In addition, teeth number of the belt is not integer.Therefore, you should adjust the layout.

The method of the layout adjustment is detailed in section 2.2.

2.2 Adjustment of the layoutThis section explains about how to adjust the layout.

2.2.1 To rotate the swing arm pulley by clicking the drawing

Figure 16. To Rotate the Swing Arm Pulley by Clicking the Drawing

The first method to adjust the layout is to rotate the swing arm pulley by clicking the drawing.The procedure is following.

1. Click and check the box of "Apply Arm Rotation".2. Click on the drawing where you want to rorate the swing arm pulley.3. Click on the "Yes" button of the message box.

The swing arm pulley is rotated to the position where you pointed andAngle of Arm Rotation and Belt Length would change. (Figure 17)

①

②

③

Figure 17. The Result of Rotating the Swing Arm Pulley by Clicking the Drawing

2.2.2 To rotate the swing arm pulley by assignment of belt length

Figure 18. To Rotate the Swing Arm Pulley by Assignment of Belt Length

The second method to adjust the layout is to rotate the swing arm pulleyby assignment of belt length.

1. Click and check the box of "Apply Arm Rotation".2. Input the target belt length to the "Target" box.

You can also select the target belt length from the Stock Belt List.(By clicking on the stock belt size, the box of "Target" is filled in automatically.)

3. Click on the "Calculate" button.

The swing arm pulley is rotated to the position where Belt Length changes to the target lengthwhich you assigned.Angle of Arm Rotation and Belt Length would change. (Figure 19)

The initial (D) of stock belt list reveals that double timing belt is available.

①

②③

Figure 19. The result of Rotating the Swing Arm Pulley by Assignment of Belt Length

By using scroll bar at the bottom of the table, "TIM", "ArcAngle", "SpanL", and "C.D." are displayed.TIM : Teeth in Meshing

The number of teeth in meshing.ArcAngle : Arc Angle

Contact angle between the pulley and the belt.SpanL : Span Length

The belt length between the points where the belt and pulleys contact.C.D. : Center Distance

The distance between the center of pulleys.Not only in this layout, you also can use scroll bar in most cases to see these informations.

2.2.3 To move pulleys linearly by assignment of belt length

Figure 20. To Move Pulleys Linearly by Assignment of Belt Length

The third method to adjust the layout is to move pulleys linearly.However, swing arm pulley is not able to move linearly.Therefore, swing arm should be removed before the linear movement.(Click on the "Remove Arm" button if you want to move the swing arm pulley.)

1. Check off the box of "Apply Arm Rotation" if the box is checked.2. Click and check the box of "Move Linear".3. Input the target belt length to the "Target" box.

You can also select the target belt length from the Stock Belt List.(By clicking on the stock belt size, the box of "Target" is filled in automatically.)

4. Click on the "Move Linear" button to launch the window to assign pulley number and moving direction.

④

①

②

③

Figure 21. Assignment of the Pulley Number and Moving Direction

5. Choose the pulley number which you want to move.6. Input the direction that you want to move the pulley.

The direction is correspond to the drawing of the left side. In this example, D3 pulley is moved to left down.The direction should be assigned to correspond the change of the belt length. In this example, belt length changes to stretch from 130 teeth to 140 teeth,so 180～360 degrees would be appropriate.If the direction is incorrect, an error message is displayed at the next step.

7. Click on the "APPLY" button.

⑤

⑥

⑦

Figure 22. The Result of Moving Pulleys Linearly by Assignment of Belt Length

8. Click on the "Move!" button to move the pulley.

By clicking "Move!" button, Belt Length and the drawing change.

⑧

2.2.4 To move pulleys freely

Figure 23. To Move Pulleys Freely

Another method to adjust the layout is to move pulleys freely by drag-and-drop.To use this function, you have to check off the box of "Apply Arm Rotation" and "Move Linear".After that, drag-and drop the pulley which you want to move in the drawing.

drag-and-drop

Figure 24. The Result of Moving Pulleys Freely

After this method is used, Belt Length and Arm Length are changed automatically.Therefore, this method is inappropriate when you want to assign the belt length and swing arm length.

2.3 Spring force calculation of swing arm pulley

Figure 25. The Result of Spring Force Calculation

When the swing arm pulley is used, spring force which balances with belt tension is calculated.

1. Click and check the box of "SPRING FORCE".2. Input the distance between arm pivot and the point of spring force application.3. Input the belt tension.4. Click on the point in the layout drawing where you want to set the spring direction.

Calculation results such as spring force and force angle are displayed below input data.

By using "90 degree Force" button (⑤),the angle between the arm and spring force becomes 90 degrees.

Figure 26. The Usage of 90 Degree Force Button

①② ③

④

⑤

Spring Force

Force byBelt Tension

Arm

Spring Force

Arm

2.4 Zoom of the drawing

Figure 27. Zoom of the Drawing

By selecting "Image">"Enlarge" from Menu Bar, the drawing of pulley layout is enlarged.

Sometimes, the layout is not displayed at enlarged window.The cause of this inconvenience is the calculation doesn't finish.To solve this matter, click on the "Calculate" button of the previous window to finish the calculation.(You might have to check off all boxes to finish the calculation.)

Even in enlarged window, you can move pulleys by drag-and-drop.

2.5 PrintingSelect "File">"Print" from Menu Bar.

2.6 Save and load of the calculation dataYou can save the calculation data by selecting File menu from Menu Bar.

Save as Data are saved as original file form whose extension is *.tdl.You can create a new saved file.

Save Data are saved as original file form whose extension is *.tdl.Old saved data will disappear.

dxf Save Data are saved as DXF file whose extension is *.dxf.Saved file can be opened by the application which can deal with CAD data.

CSV Save Data are saved as CSV file whose extension is *.csv.Saved file can be opened by MS Excel and so on.

Text Save Data are saved as text file whose extension is *.txt.Saved file can be opened by Memo Pad, MS Word, and so on.

You can load the saved data by selecting "File">"Open" from Menu Bar.