ZAR3 Worm Gear Calculation Z A R 3 + Software for Worm Gear Design (C) Copyright 1993-2019 by HEXAGON Software, BerlinBases for CalculationZAR3+ calculates all dimensions of cylindrical worm gear pairs with ZI, ZA, ZK, ZN or ZH worms, as well as efficiency, tooth forces and the safety margins against root fatigue fracture and pitting.Pre-dimensioningIn pre-dimensioning recommendations are made for axial distance, modulus and number of teeth based on gear ratio, drive power, drive rotational speed and material. The recommendations can be used in the following geometry and strength calculations.Geometry CalculationIn dimensioning you can adjust the recommended values to match available sizes or company standards. Or by varying the axial distance ratio and addendum modification you can determine the optimum worm gear for your application.Strength CalculationThe strength calculation computes the factors SF (fatigue fracture) and SH (pitting) along with tooth forces on the worm and worm gear, as well as the efficiency of the gear.EfficiencyZAR3+ calculates the toothing efficiency, toothing and idling loss of power.
A steel worm and a plastic helical gear (= worm gear), where the tooth thickness of the steel worm has been reduced in favour of the tooth thickness of the plastic gear. In this case the gear strength may be limited by the shear strength of the loaded teeth, as given by the equation: Fmax =n f t τ. = number of teeth in (full). Worm Gear Data Sheet.55. Worm gear ratio and torque information. View Parts & Specs. About any File Format. Lecture 8 – SPUR GEAR DESIGN. Buckingham design approach for wear strength. GEARS AND GEAR DRIVES 2001 MSD Motion System Design. In worm-gear sets, the worm is most often the driving member. How-ever, a reversible worm-gear has the.
Worm Gear Design Calculation Pdf Free Online
The program provides recommended values and help graphics for determination of the tooth friction value.Material Data BaseThe program already includes a data base containing the most important gear materials and their values.Tooth ForcesAxial and radial forces, as well as tangential force and normal force are calculated. These values can be transfered to the WL1+ software for shaft calculation.Plus Functions of ZAR3+ZAR3+ generates true-scale drawing of worm and worm gear.ZAR3+ provides an additional input window for modifications of tooth height factors and profile shift coefficient x. These functions are useful for design of complementary gears of steel worm and plastic worm gear.ZAR3+ calculates tooth thickness and over pin/ball diameters (OPD). You can enter pin diameter and flank tolerances or select from tolerance system according to DIN 3967.CAD InterfaceA true-scale drawing of worm and worm wheel, as well as tables with the gear data can be exported to CAD via the DXF or IGES interfaces. The drawings can of course also be displayed on screen and printed out.Import/ExportText printout can be generated as HTML table and exported to Excel. Input data may be loaded from an Excel worksheet.HEXAGON Help SystemFor all entries a help text or auxiliary picture can be displayed. For example, there are diagrams for input of the tooth friction value µz0 in relation to lubricant and average slide speed.There are also diagrams for optimizing the diameter-to-center distance ratio dm1/a in relation to fatigue stress or efficiency.
Users can modify and append help texts and auxiliary pictures. Whenerror messages occur you can have an error description and remedy suggestion displayed.Hardware and Software RequirementsZAR3+ is available as 32 bit and 64 bit application for Windows 10, Windows 7, Windows 8.Scope of DeliveryCD-ROM or zip file for download with program and pdf manual, License agreement for indefinite period of time.Information and Update ServiceHEXAGON Software is continuously improved and updated. Licensed users can obtain new versions at the update price. Each program is provided with an individual license number and user files. No extra charge is made to registered users for support by email and hotline use.
. On the ribbon, click Design tab Power Transmission panel Worm Gear. On the generator, Design tab:. Enter the values to the Common section. In the Worm gear section, select Component from the list. In the Worm gear section, select Component from the list.
We recommend that you select both cylindrical faces because gears are automatically put together. Click OK.You can switch to the Calculation tab to perform a calculation and strength check. The calculation is performed when you click Calculate. Note: ClickMore in the right lower corner of the Design tab to open the More Options area, where you can select other options for your calculation. On the Calculation tab, enter values to perform the strength check. Click Factors to display a dialog box where you can change factors for selected Method of Strength Calculation.
Click Accuracy to display a dialog box where you can change the accuracy settings. Click Calculate. The calculation results are displayed in the Results area. The inputs that fail the calculation are displayed in red (their value does not correspond with other inserted values or calculation criteria).
Reports of the calculation are displayed in the Summary of Messages area which is displayed after clicking the chevron in the right lower part of the Calculation tab. Click Results to display the HTML report with calculated values. Click OK.