A double reduction gearbox design has developed to the point that the general layout and axial...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A double reduction gearbox design has developed to the point that the general layout and axial dimensions of the countershaft carrying two spur gears has been proposed, as shown in Fig. 7-10. The gears and bearings are located and supported by shoulders, and held in place by retaining rings. The gears transmit torque through keys. Gears have been specified as shown, allowing the tangential and radial forces transmitted through the gears to the shaft to be determined as follows. Wt23 = 2.401KN Wt54 Wr23 -0.876KN 10.813KN Wr54 = -3.93KN. where the superscripts t and r represent tangential and radial directions, respectively; and, the subscripts 23 and 54 represent the forces exerted by gears 2 and 5 (not shown) on gears 3 and 4, respectively. Proceed with the next phase of the design, in which a suitable material is selected, and appropriate diameters for each section of the shaft are estimated, based on providing sufficient fatigue and static stress capacity for infinite life of the shaft, with minimum safety factors of 1.5. All the dimensons are in kN and Millimeter Bearing A Di O Gear 3 dy - 12 D₁ CADEF G H Di 7.50 Gear 4 di-2.67 8.50 Bearing B stor O 21125 11:50 KL M B N A double reduction gearbox design has developed to the point that the general layout and axial dimensions of the countershaft carrying two spur gears has been proposed, as shown in Fig. 7-10. The gears and bearings are located and supported by shoulders, and held in place by retaining rings. The gears transmit torque through keys. Gears have been specified as shown, allowing the tangential and radial forces transmitted through the gears to the shaft to be determined as follows. Wt23 = 2.401KN Wt54 Wr23 -0.876KN 10.813KN Wr54 = -3.93KN. where the superscripts t and r represent tangential and radial directions, respectively; and, the subscripts 23 and 54 represent the forces exerted by gears 2 and 5 (not shown) on gears 3 and 4, respectively. Proceed with the next phase of the design, in which a suitable material is selected, and appropriate diameters for each section of the shaft are estimated, based on providing sufficient fatigue and static stress capacity for infinite life of the shaft, with minimum safety factors of 1.5. All the dimensons are in kN and Millimeter Bearing A Di O Gear 3 dy - 12 D₁ CADEF G H Di 7.50 Gear 4 di-2.67 8.50 Bearing B stor O 21125 11:50 KL M B N
Expert Answer:
Answer rating: 100% (QA)
Given Force from gear 2 to gear 3 tangential Wt23 2401 KN Force from gear 5 to gear 4 tangential Wt5... View the full answer
Related Book For
Shigleys Mechanical Engineering Design
ISBN: 978-1121345317
9th edition
Authors: Richard G. Budynas, J. Keith Nisbett
Posted Date:
Students also viewed these accounting questions
-
a. Example 13-1: Batch Reactor with an Exothermic Reaction Wolfram 1. Adiabatic Case: Use Wolfram to see whether you can find a trajectory that is ready to ignite and whose trajectory looks like a...
-
Gavin wrote the equation p=(3(s+100))/(4) to represent p, the profit he makes from s sales in his lawn -mowing business. Which equation is solved for s?
-
Research and share a recent announcement of a formation of an international alliance. Predict its likely success or failure based on your research.
-
Following are three processes that have been used for the industrial manufacture of acrylonitrile an important chemical used in the manufacture of plastics, synthetic rubber, and fibers. Use bond...
-
Explain the role of polymorphism in the user interface.
-
Process Costing and Job-Order Costing Which method of determining product costs, job-order costing or process costing, would be more appropriate in each of the following situations? a. An Elmers glue...
-
After examining the opportunity set you realize that you can invest in a portfolio consisting of the bond fund and the large-cap stock fund that will have exactly the same standard deviation as the...
-
a. Draw the hierarchy chart and design the logic for a program needed by the manager of the Stengel County softball team, who wants to compute slugging percentages for his players. A slugging...
-
Dominos delivers pizzas to dormitories located in Eastern Mediterranean University. The company's annual fixed costs are $54,000. The sales price averages $9, and it costs the company $3 to make and...
-
One form of whispering gallery is an elliptical room where a person standing at one focus can hear quite clearly someone speaking very quietly at the other focus. Use your knowledge of ellipses to...
-
The volume flow rate of water at \(20.0^{\circ} \mathrm{C}\) through a cylindrical pipe is \(2.00 \times 10^{-4} \mathrm{~m}^{3} / \mathrm{s}\). What is the volume flow rate of castor oil moving...
-
A \(0.100-\mathrm{kg}\) ball attached to a \(0.20-\mathrm{m}\) rod of very small inertia moves in a vertical circle in such a way that its speed remains constant. Let \(\mathcal{T}_{1},...
-
A cannon is fired some distance away from you, and you wish to estimate that distance by determining how much sound energy enters your ear. (a) How does the sound energy depend on the distance...
-
You insert a pipette of diameter \(0.700 \mathrm{~mm}\) into a liquid that is at \(20.0^{\circ} \mathrm{C}\) and has a mass density of \(1261 \mathrm{~kg} / \mathrm{m}^{3}\). If the liquid rises...
-
Integrate the following: (7) 4. S sin3xcosh2x
-
How do the principles of (a) Physical controls and (b) Documentation controls apply to cash disbursements?
-
The countershaft in Prob. 373, p. 138, is part of a speed reducing compound gear train using 20 spur gears. A gear on the input shaft drives gear A with a 2 to 1 speed reduction. Gear B drives a gear...
-
For the steel countershaft specified in the table, find the deflection and slope of the shaft at point A. Use superposition with the deflection equations in Table A9. Assume the bearings constitute...
-
Solve Prob. 442 using Castiglianos theorem. Prob. 442, For the cantilevered handle in Prob. 441, let Fx = 150 lbf, Fy = 0 lbf, Fz = 100 lbf. Find the deflection at the tip along the x axis. In Prob....
-
Personalized medicine may be used a. to characterize types of tumors. b. to predict the outcome of certain types of cancers. c. to determine the proper dosage of drugs. d. in all of the above.
-
Tumor-suppressor genes promote cancer when a. they are overexpressed. b. they are expressed in the wrong cell type. c. their function is inactivated. d. they are expressed at the wrong stage of...
-
Which of the following is a type of genetic change that could produce an oncogene? a. Missense mutation b. Gene amplification c. Chromosomal translocation d. All of the above can produce an oncogene.
Study smarter with the SolutionInn App