There are different patterns of ray diagram for a six speed gearbox, they are of the following types. Speed ray diagram design of gear tool box machine designe sem 7 2171909 machine design. Transmitted power output 10 kw, electric motor speed 1450 min, required output speed 30 min. The study, conceived as an industryacademia joint initiative, was undertaken by a design team, the members of which were drawn from both the company concerned and the institute. The structural formulae, structural diagrams, and ray diagrams, as well as the number of teeth for all gears, actual speeds, deviation. An appropriate stepwise solution for design of speed box a. It provides information like number of stages, number of shafts used, number of gear pairs and its arrangement. In this chapter we will present a complete design of a onespeed gearbox driven by a belt transmission and driving a chain transmission. This video contains one numerical on how to draw the speed diagram ray diagram and gearbox for a given formulae. Therefore you have to click in the element explorer shaft shaft section and drag it with pressed mouse button in the 3dview. After the designer picks a size, the gearbox manufacturers catalog or website lists values for the maximum overhung load that is permissible for that sized unit.
Load type static, slight impacts, service life 20,000 hours. What are the various components required for the automobile speed reducers. The gearbox is being powered by a 5 hp, 60hz ac, electric motor with a. Spur gear design and selection objectives apply principles learned in chapter 11 to actual design and selection of spur gear systems. The horizontal ray in the speed chart means that there. The gearbox has two intermediate shafts s2 and s3 besides the input and output shafts s1 and s4. Design of gear box using psg design data book gopinath g.
The intent of this project was to design a gearbox containing two shafts, one coupling, four bearings and two helical gears. 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. This video contains design procedure of speed ray diagram and gear layout. Cae computer aided engineering has greatly influenced the chain of processes between the initial design and the final realization of a product. It provides information such as speed in each stage, the transmission ratio in each stage, the total number of speeds and its values. Optimization of gear reduction unit through ray diagram. The menu on the right is the element explorer, where you can select the required machine elements. Design and optimization of 2stage reduction gearbox. The structural diagram show the general arrangement of the gear transmission but ray diagram gives the gear arrangement for the required output speed. There are different patterns of ray diagram for a six speed gearbox, they are of the.
Cae software helps in product designing, 3d visualization, analysis. Why spend time choosing the right motor and gearbox. Calculate forces on teeth of spur gears, including impact forces associated with velocity and clearances. Calculation of a two stage gearbox this tutorial shows the usage of mesys shaft calculation with systems of parallel shafts.
A gearbox is a mechanical device that is used to provide desirable different speed and torque transfer to output gearbox shaft to machine input shaft. Determine allowable force on gear teeth, including the factors necessary due to. This study of spur gear reduction unit has been carried out to find out the optimized design of the gearbox for minimum distance between transmission shafts for different gear pairs. Steady load conditions on the gearbox are tested for current signatures during different gear operations. This site contains notes for the course design of design of transmission systems of anna. Design of gear box the main purpose of a gearbox is to transmit power required or demand to variable needs from an input power source to the desired output machine. Design of gearbox free download as powerpoint presentation. Ray diagram kinematic layout free download as word doc. Design and optimization of 2stage reduction gearbox 1neeraj patel 2tarun gupta 3aniket wankhede 4vilas warudkar 1 23b. But, when it comes to weight for light utility vehicles aluminium alloy is preferred. A material is to be selected by doing intensive research on the properties of the various materials. Design and fabrication of a gear box motor current. Design of machine tool gearboxes driven by double speed.
Structure diagram how to draw structure diagram machine design 2171909 gtu sem. Draw speed ray diagram and layout for a six speed gear box. 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. The objective of this paper is to design and fabricate a gearbox motor current analysis system at different gear operations for a constant load. Msd speed diagram session 1 problems numericals youtube.
V belt pulley assembly is used to provide a speed ratio of 1. Download as doc, pdf, txt or read online from scribd. Request pdf on may 1, 2019, yahya choopani and others published principles of. Principles of design and analysis of 12speed gearbox machine. Design and analysis of gear box test bench to test shift. The triple reduction gearbox shafts are designated using capital ss and a numeral. Distinguish between structural diagram and ray speed diagram. This chapter begins with a comparison of the merits of spiral bevel gears and hypoid gears when employed as the final drive in the automotive gearbox, ix.
A ray diagram is a representation of structural formula. Ray diagram kinematic layout transmission mechanics gear. Gear design in mdesign gearbox march 2012 driveconcepts gmbh, dresden 3. Design and draft 2 stage gearbox with given dimensions and. It is common for worm gears to have reductions of 20. The speed chart construction is necessary to determine the transmission ratio. Gear generator is a tool for creating involute spur gears and download them in svg format. Where np and ng number of teeth in pinion and gear. This is an economy continuous flow drying system that does not include a horizontal unload auger. The ray diagrams have been incorporated to make gear design more feasible with respect to the transmission ratio and number of teeth used in gearbox. Pdf me6601 design of transmission systems dts books. The frame in the middle, where the coordinate system is shown, is the design space of your gearbox. Basic function of gearbox is to increase or decrease the torque effectively as per requirement.
Gears can be animated with various speed to demonstrate working mechanism. Please start with the tutorial for shaft calculation to see how to introduce geometry. For the love of physics walter lewin may 16, 2011 duration. Therefore, the following remarks must be considered. Gearbox, design, clamping, oil dispensingextractionfiltration unit, fea 1.
The first step in the gearbox design process is to select the material. Gear design in mdesign gearbox march 2012 driveconcepts gmbh, dresden in the graphical input you will find different categories. Other springs for drain valves, control valves, etc. The main aim of this paper is to focus on the mechanical design and analysis on assembly of gears in gear box when they transmit power at different speeds i. Kinematic diagram a kinematic layout is a pictorial representation of gearbox, describing the arrangement of gears. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and. The ray diagram for a speed gear bon having the formular. The gearbox is part of a system to test the idling characteristics of an automotive timing drive system. Introduction gearbox is an important element in many mechanical systems such as automobiles, cranes and machinery. Hence, our design and selection of materials are safe and fine. Design of spurhelical gear from design of transmission systems dts in tamil duration. Worm and worm gear worm gears are used when larggge gear reductions are needed. Modeling the shafts in the graphical input are shafts modeled by single parts.
The factors of z value for 3 stage gearbox design are taken in such a way that. Tutorial for gear design and calculation with mdesign gearbox. The horizontal ray in the speed chart means that there is no. Pdf improving efficiengy of eot crane by maintaning gear. Each of the chapters will deal with aspecific problem which is encountered during the design phases and during operation. The range of speeds should be from 600 to 23 rpm respectively. Stress and design analysis of triple reduction gearbox casing. Number of steps rquired are 12 and drive is from a 3 kw motor running at 1440 rpm. All shafts have helical gears and antifriction bearing at shaft ends. Choosing the correct combination of a motor and a gearbox for a given application is very important, both in the first robotics competition frc and in actual engineering projects. Procedure for dynamic analysis first of all, we have prepared our assembly gearbox in the creo parametric 2. These gearboxes are simple in design and are similar to those used for speed changing 2. Computer aided analysis and selection of optimal structural diagram for 3 stage gearbox of lathe headstock 47 optimum gear ratio and size.
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