2 stage planetary gearbox ratio calculation software

B2 activate the 1st iax1 2,25 and 2nd iax2 3,5 gear ratio, the clutch s. Also the case study to determine the reduction ratio of two stage gear box is. Goal of my project was the construction of a planetary gear with 3 reduction stages. Similar result can be concluded in secondstage planetary gear train, and change rate differences of 1. The products in the alpha value line are the perfect, costeffective solution for servo axes and linear systems. Spaceoptimized 2 stage design the highend gearbox lines are constructed in a spaceoptimized, twostage design. As shown in this figure, characteristic frequencies of the pg, i. Please start with the tutorial for shaft calculation to see how to introduce geometry. The gear generator program tends to refer to tooth spacing. Analysis of dynamic behavior of multiplestage planetary. Analysis after performing analysis on the second stage of epicyclic planetary reduction gear unit, figure 8. A twostage planetary gear stage is defined using the program. Singlestage planetary gearhead ratios range from 3.

Zar5 generates drawings of the front and side elevation of the gears calculated, plus tables containing the gear data and dimensions. Epicyclic gearing or planetary gearing is a gear system consisting of one or more outer, or planet, gears or pinions, revolving about a central sun gear or sun wheel. Instead of the drive shaft the planetary carrier contains. Frequency spectra of vibration responses of the twostage planetary gearbox with the crack of 20%, 5 mm. The overall demultiplication of multi stage planetary gear units is calculated by multiplying the ratios of the single stages. For instance, suppose that an application needs a 2hp motor with a 15. Lightweight design for planetary gear transmissions.

For example, if the sun gear has 20 teeth and the ring gear has 60, the planetary gear has 80 teeth. The entrylevel class of servo actuator products with suitable solutions in the accuracy range from 10 to 20 arcmin. Then it goes to satellite block with 3 twinsatellite z236. Design of two stage planetary gear trains for reduction ratio 78. Our portfolio includes costeffective serial solutions as well as customerspecific highend developments. Planetary stage design, shaft design, bearing selection design, and design of shaft related parts. The gear ratio formula for two meshing gears is simple and intuitive, while the gear ratio formula for the planetary mechanism is not. Structure and features 4 types 5 standard reduction ratio ip 6 recommended lubrication oils 6 selection of. In the first step, only one planetary stage is build, in the second step the second planetary stage is. For a threespeed hub, a onestage planetary gear system is used, for a fivespeed hub a 2stage. Working out planetary gear turns ratios working out the gear ratio of a planetary gear train can be tricky. Notice that the first gear ratio listed above is a reduction the output speed is slower than the input speed.

Highquality servo gearboxes, rapidly available at very attractive prices and with bestinclass performance. Calculate gear ratio by dividing the number of teeth on the driven gear by the number of teeth on the driving gear. Gearbox development and calculation according to standards especially for design concepts of planetary and spur gear boxes, the newest software development of driveconcepts gmbh mdesigngearbox is established. Dxf and iges interfaces allow zar5 to be linked to cad and dtp systems. The planet gear in figure 23 rotates about a fixed bevel gear at the center of which is the driven shaft. In mathematical terms, the smallest reduction ratio is 3.

Please start with the tutorial for shaft calculation to see how. The number of teeth of the planets has no effect on the ratio. Litvin, computerized integrated approach for design and. The second is an overdrive the output speed is faster than the input speed. Calculation of a two stage gearbox this tutorial shows the usage of mesys shaft calculation with systems of parallel shafts. Unfollow planetary gearbox to stop getting updates on your ebay feed. On the ring gear blue the torque arm is attached so its speed is zero. The whole gearbox works with motion links so that the transfer factor of the first stage is 1. These vehicles are designed to sustain any sort of extreme loads that act during off road driving. This calculation software gives complete product information in the early phase of the product lifecycle plc. Housing the housings of the high end range are designed from a onepiece, robust housing. Tutorial for gear design and calculation with mdesign gearbox. Please start with the tutorial for shaft calculation to see how to introduce geometry and supports for single shafts. 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.

Design and optimization of 2stage reduction gearbox. Wittenstein alpha offers planetary gearboxes, servo rightangle gearboxes, complete rack and pinion systems, design tools for the entire drive train and accessories. In the past ive had luck using this site to create an illustrator file that i can extrude in rhino. This article is about design and calculation of planetary gearbox which can be.

Gearbox development and calculation according to standards especially for design concepts of planetary and spur gearboxes, the newest software development of driveconcepts gmbh mdesigngearbox is established. Calculation of load distribution in planetary gears for an effective gear design process, agma 2 john argyris, alfonso fuentes, faydor l. According to one manufacturers productnumber system, size 726 defines a gearbox that has a 2. Help with calculating speeds gmf in a planetary gearbox. How to calculate the gear ratio in a planetary gear set where one member is stationary. The model of gearbox is created in simscape driveline software containing. In this paper, two stage reduction helical gearbox has been designed. Methodology for designing a gearbox and its analysis. To use the chart, find the point where 2 hp and 15. Was required and calculation of the excitation frequencies. The gear calculation can be opened by selecting the gear pair in the system tree. The calculator converts under the assumption that one unit of the gearbox is fixed sun, planet carrier and annulus gear, therefore does not rotate. Also, locking any two of the three components together will lock up the whole device at a 1.

You have to be very very specific while selecting the type of gears to be used. The next chapter explains the matlab calculation program based on the theory and measurements. The next steps depend on the state of the planetary gears connected to the carrier, although all use the same formula. Software gto provides the required results in a very short time. How to derive the formula for the planetary mechanism. In the text below t refers to the number of teeth and n refers to the speed. The largest ratio planetary gearbox i have back driven was a two stage 100. Final assembly of 3 stage epicyclic planetary reduction gear maximum stresses and minimum stresses are obtained as follows. 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. Design and optimization of planetary gears considering all. Most mechanism of planetary gear comes with compact. Sgr 2 stage planetary gearbox series n2 is designed for high efficiency over 95% and higher power density applications. This does not generate planetary gears, and im also unclear as to how design a planetary gear with a 2. This is a simple twostage planetary gearbox with a reduction of 20.

Epicyclic gearing systems also incorporate the use of an outer ring gear or annulus, which meshes. If the carrier is acting as the output in the planetary gear system, being rotated by the sun gear while the ring gear stays still, divide the number of teeth on the planetary gears the driven gear by the number of teeth on the sun gear the driving gear. Two stage planetary gearbox,planetary gear reducer. Please start with the tutorial for shaft calculation to see how to introduce geometry and supports for. Planetary epicyclic gear ratios equations and calculators. Three stage planetary gearbox with two output shafts duration.

Typically, the planet gears are mounted on a movable arm or carrier, which itself may rotate relative to the sun gear. How to i design a planetary gear with a gear ratio of 2. Enter transmission ratio and number of stages for predimensioning of a multi stage planetary gear. Gearbox reverse drive question mechanical engineering.

Two forms of planetary gears of the bevel type are shown in figures 23 and 24. Basic settings for calculation start the software mdesign and open in the left contentmenu the folder mdesign gearbox and choose the entry mdesign gearbox with doubleclick. Hence to achieve the speed of 53kmph we required the gear reduction of gearbox as 10. All data on the input page will be set on default values. The exploded view shows the components of the gearbox that will be explained in.

For the predefined gear ratios, one negativeratio drive and two structurally different positiveratio drives will be designed and compared fig. Planetary stage design, shaft design, bearing selection. Calculating gear ratios within a planetary gear set youtube. The last is a reduction again, but the output direction is reversed. 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.

They come in modular designs thus, can be stacked depending on the specific requirements of the customer. On a side note, if you are driving the gearbox with a dc or servo motor you will probably have to disable the dynamic braking to back drive it. Due to the lower torque values, the input stage is dimensionally smaller than the output stage. Pitch diameter can also be calculated as tooth spacing number of teeth 2. Case study two stage planetary gearbox ken singleton sept 4, 2006. Each planet gear system has a reduction state, a direct coupling and an acceleration mode.