The first step in the gearbox design process is to select the material. One more use of gear reducers is in gear switching in automobiles. A twostage gearbox or a threestage gearbox can be achieved by simply increasing the length of the ring gear and with serial arrangement of several individual planet stages. Additionally it will show how to get documented investigative results. The input to the gearbox will be given at the extended shaft length l in and output is taken out at shaft l out. This places significant demands on the algorithm employed to search it, but successful optimization has the potential to yield considerably better designs than conventional heuristics, at the same time enabling a better understanding of the tradeoffs between various. The power source applies the torque t 1 to the input shaft, driving it at speed. As we have finished with all the theoretical part of the project, it is the time for the manufacturing. What are the applications of twostage gear boxes type spur.
Double helical gearing has the same characteristics as the single helical but with the. In the software kisssoft we apply the problem with the. This places significant demands on the algorithm employed to search it, but successful optimization has the potential to yield considerably better designs than conventional heuristics, at the same time enabling a better understanding of the tradeoffs between various objectives such as service life. The gearbox has to transmit 5kw at an output rotational speed of approximately 125 revmin. In little steps will be illustrated how to design a 3dmodell of a singlestage spur gear unit and described how to check this construction. Axle for automobile i am not sure that is twostage it can be onestage 4.
The optimization is based on a multicriterion technique consisting of a minmax method combined with a direct search. Nords twostage bevel features smooth surfaces making it ideal for sanitary and washdown environments. Gear design in mdesign gearbox march 2012 driveconcepts gmbh, dresden 3. This study shows the complex design problem of helical gear and required superior software skills for modeling and analysis. Modeling and analysis of 2stage reduction gear box ijmetmr. Sep 29, 2016 a gearbox that converts a high speed input into a single output it is called a single stage gearbox. For a single pair of gears the output shaft rotates at speed. Multiobjective optimization of the twostage helical. Studied in detail transmission design of automobile as well as the design of spur gear, shafts, bearings, and casing.
Practical optimal design on two stage spur gears train. In the software genetic algorithm ga was applied to the problem with the objective function. Methodology for designing a gearbox and its analysis. In this mesh, the reference circle of the gear touchesthe pitch line of the rack. You have to be very very specific while selecting the type of gears to be used. Spur gear design and selection objectives apply principles learned in chapter 11 to actual design and selection of spur gear systems. What are the applications of twostage gear boxes type. Design and optimization of 2stage reduction gearbox. In this chapter, the rv cycloid gearbox will be generally presented, as well as the first stage of the gearbox which is a planetary spur gear, together with shaft and bearing design consist of how to dimension them and achieve failure analysis. Excellent can optimize rack and pinion, spur, helical, internal, external, circular pitch, straight, and spiral bevel gears in english or metric units. Computeraided design of a twostage gearbox sciencedirect. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The design space of multi stage transmissions is usually very large and heavily constrained. Mar 08, 2009 first stage gear spur and for second stage helical gear so tell how to design two stage reduction gear box.
First stage gear spur and for second stage helical gear so tell how to design two stage reduction gear box. How to get the most realistic efficiency calculation for gearboxes. An allterrain vehicle is an off road vehicle that has the ability to drive on any terrain without any difficulty. The motor i have found has a shaft diameter of 48mm the design i proposed is a two stage reduction gear box using spur gears. Determine allowable force on gear teeth, including the factors necessary due to. Introduction gearbox often referred as transmission unit that uses gears and gear trains to provide speed and torque conversions from a rotating power source to another device. Aug 15, 2016 i need to design and find suitable specifications for spur gears for a two stage reduction gearbox. Calculation of a two stage gearbox this tutorial shows the usage of mesys shaft calculation with systems of parallel shafts.
Jan 16, 20 this video lecture will teach you how to design spur gears for mechanical strength, dynamic load and surface durability. The optimization is based on a multicriterion technique consisting of. First, designed the gearbox on the paper theoretical calculations and this design becomes virtual with the help of solidworks 16 and catia v5 software. It is extremely simple to use, standalone gear design software using which you can easily design spur gear sets as it is used to design gear sets, you can define number of teeth, profile correction, and segments per flank for individual spur gear. Using these analytical values, modelling of gears on proe catia v5r20 modelling software is. The design space of multistage transmissions is usually very large and heavily constrained. Design two stage gear box with helical gears crazyengineers.
Spur gearbox with 3 stages driving 2 shafts engineers edge. Pdf procedure for optimum design of a twostage spur gear. This is an instruction for designing a gearbox model followed by a kinematic calculation of single machine elements using the program mdesign gearbox. Planetary stage design, shaft design, bearing selection. Calculat ion of a two stage gearbox this tutorial shows the usage of mesys shaft calculation with systems of parallel shafts. Dec 31, 2017 i am sure nobody know every application. I need to design and find suitable specifications for spur gears for a two stage reduction gearbox. The spur gearbox product lines offer the precision required, at prices that make them an affordable choice. The gearbox will be driven by a separate mains 4 pole synchronous electric motor.
Planetary gears a masterclass for mechanical engineers. Gearboxes planetary and spur designs from anaheim automation. Design and development of two stage reduction gearbox for. The calculation cannot replace measurements and test drives, but iteration steps can be reduced economically. Indeed, a special, twostage planetary arrangement may utilize a gear ratio of over one. We have also checked the design in various analysis software such as catia and ansys.
Design and customize a spur gear in minutes using emachineshops gear design wizard. Please start with the tutorial for shaft calculation to see how to introduce geometry and supports for single shafts. Spur gears come in a range of sizes and gear ratios to meet applications requiring a certain speed or torque output. Nord 2stage helical bevel gear unit nord drivesystems. Free gear design software gear creator emachineshop. We started with the manufacturing process of two stage reduction gearbox, firstly we started searching for the gearbox manufacturer. Figure 1 design of gearbox apply material for spur gear 15nicr1mo15 and scm415. The software allows for an intuitive and easy handling in the design process of the entire gearboxdimensioning of the machine elements. Gear generator is a tool for creating involute spur gears and download them in svg format. Design optimization of a two stage gearbox by using kisssoft was accomplished by readily supplying the design parameters requested.
Automated optimal design of a twostage helical gear reducer. This is a step by step explanation for designing a 3dmodel of a multiple stage gearbox, the calculation of it and how to document the results. Spur gearbox with 3 stages driving 2 shafts you will have to register or login see top or bottom of page before you can post a message or view images. To start viewing messages, select the forum that you want to visit from the selection below. This video lecture will teach you how to design spur gears for mechanical strength, dynamic load and surface durability. A very high gear ratio can be realized in a compact package. Design of spur gears spur gear can be modeled similar. In this paper, an optimum design of a two stage spur gear system is performed. Gearbox design contreras, marisol gregorio, kevin obdulio sosa, carlos alberto florida international university department of. Involute spur gears is a free gear designing software for windows. In the software genetic algorithm ga was applied to. Multi speed gear box has more than two gears and shafts. In this paper, an optimum design of a twostage spur gear system is performed.
Design and analysis of gear box for high power transmission presented by mohd amirmeb122 mir monir alam meb205 muzzammil ahmadmeb032 1 under the supervision of prof. Comparison of the first four modes with varying hp has been shown in fig. Expert designers can start fresh with a cleansheet gear design. A gearbox that converts a high speed input into a single output it is called a single stage gearbox. Choose in the element explorer gear spur gear external gear and drag it into the 3dview.
In recent years the estimation of gearbox power loss is attracting more interest especially in the wind turbine and automotive gearbox industry but also in industrial gearboxes where heat dissipation is a consideration as well. Spur gears spur gears are made with straight teeth mounted on a parallel shaft. The noise level of spur gears is relatively high due to colliding teeth of the gears which make spur gear teeth prone to wear. In the software kisssoft we apply the problem with the objective function of minimizing of volume of gear trains. Mechdesigner software makes it easy to add gearpairs that will transmit motion and force naturally through the mechanisms linkages. L and w are the length and width of the gearbox respectively. It is usual to premachine pinion shafts from the roughing out stage by. Our geargear box design software quickly determines product parameters for various applications saving hundreds of engineering hours. These vehicles are designed to sustain any sort of extreme loads that act during off road driving. A two stage gearbox or a three stage gearbox can be achieved by simply increasing the length of the ring gear and with serial arrangement of several individual planet stages. This can be accomplished in a two stage gearbox, with the first stage driving two portions of the second stage. Gears can be animated with various speed to demonstrate working mechanism.
A software to automate preliminary design of gearbox with spur, helical and bevel gears was developed. First of all, we have prepared our assembly gearbox in the creo parametric 2. Axle for automobile i am not sure that is twostage. Table of content introduction design of gears design of shafts design of keys introduction to abaquscae future work references 2 3. Multiobjective optimization of the twostage helical gearbox. This is a step by step explanation for designing a 3dmodel of a multiplestage gearbox, the calculation of it and how to document the results. The spur gearbox is built with the design goal of offering a costeffective product without sacrificing quality. Software to automate preliminary design of gearbox. Import iges file in ansys workbench simulation module.
The simplicity in the manufacturing can further be achieved by using spur gears in the gearbox instead of. Tutorial for designing and calculation of a multiplestage. The templates include gears, shafts, bearings, engine models, electric motor, wheels and multiple power loads. The optimization is based on a multicriterion technique. These templates cover driveline and gearbox applications. A gearbox that converts a high speed input into a number of different speed output it is called a multispeed gear box. Gear ratios and compound gear ratios working out simple gear ratios two gears a feature often requested in my gear program is that it should calculate and display the gear ratio the reason it does not have this feature is that the gear ratio is also the tooth count ratio of the two gears, and that is a value that the user has to enter. After specifying these options, click on redraw option to get visualization of. In addition it let you compose full gear layouts with connetcted gears to design multiple gears system with control of the inputoutput ratio and rotation speed. Design is done by doing design calculations analytically according to standard design procedure. You can model most gear design arrangements and gear trains. We have a wide range of ratios to fit your application. The gear ratio of the first and the second stage will be automatically. Tutorial for gear design and calculation with mdesign gearbox.
Pdf in this paper, an optimum design of a twostage spur gear system is performed. This system makes use of gears with a motor to achieve the desired functionality. Gear design software to model most gear arrangements. The reason it does not have this feature is that the gear ratio is also the tooth count ratio of the two gears, and that is a value that the user has to enter. Software to automate preliminary design of gearbox with spur helical and bevel gears was developed. I am required to design all aspects of the gearbox including that strength of material is ensured. In this paper we have seen the finite element method for analysis of spur gear in two stage planetary gearbox. Calculate forces on teeth of spur gears, including impact forces associated with velocity and clearances. Instead of holding any part stationary, two parts can be used as inputs, with the single output being a function of the two inputs. Using these analytical values, modelling of gears on proe catia v5r20 modelling. Design of two stage planetary gear trains for reduction ratio 78. Using these analytical values, modelling of gears on proe catia. Practical optimal design on two stage spur gears train using. Automated optimal design of a twostage helical gear.
Our project is aimed to carry out design and analysis of two stage spur planetary gearbox2p17. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. After successfully completing the design of gearbox, going for manufacturing. Spur gearbox products are available in sizes from 60mm to 90mm. The twostage helical gearbox speed reducer considered for multiobjective optimization illustrated in fig. A typical case would involve the design of the gearing for a hoist to raise a certain weight w ata uniform speed, when making use of a motor with a given horsepower hp running at a given speed rpm and driving through a pinion with number of teeth np, fig. Here we design and fabricate a single stage gear reducer system. Software prompts using detailed parameters help in the design and analysis of gears. Gear ratios and compound gear ratios working out simple gear ratios two gears a feature often requested in my gear program is that it should calculate and display the gear ratio. Pdf procedure for optimum design of a twostage spur. Design and optimization of planetary gears considering all. This will use 2 pairs of 20 teeth gears and 100 teeth gears on parallel shafts.
The free body of a typical single stage gearbox is shown. Here design is carried out to meet all input requirements conforming to. Procedure for optimum design of a twostage spur gear system. Design and optimization of 2stage reduction gearbox ijedr. You can edit and analyze all of its kinematic properties. Gear design optimization and production software excellent.