Determine forces acting on each shaft and support reactions

Assignment Help Mechanical Engineering
Reference no: EM131061702

Gear Box Design 2016

As an Engineer you will come across various designs to be completed during your career. This design work is intended to give you thorough understanding of steps needed to follow when designing different components which are common in the real world, use of standards and follow their procedures while designing and presentation of your work in solid modelling and orthographic drawings. Students individually design a mechanical transmission for individual operating conditions and individual gear box layout, present their calculation and design procedures in the form of a report, make use of solid modelling software to develop a solid model and produce working drawings of the transmission.

Project content:

Using Bonfiglioli software (available in computer classes) and initial data provided, explore possible concepts of the transmission and record additional data derived from the software. Using data acquired select and justify a concept for the transmission layout to meet operating conditions. Different students select different transmission concepts. Gather additional data from gearbox catalogues and Bonfiglioli Web-site.

Using kinematic and power / torque data determine forces in gearing. Determine forces acting on each shaft and support reactions. For shafts and gears: Select structural materials and recommend thermal treatment.

Carry out strength calculations (use Course notes and standard text books or Material Database for reference materials on gears). Select bearings (SKF software can be used for bearing selection and bearing support design, which can be found at:

(https://www.SKF.com).

For a specified component develop a manufacturing process (select machining methods and thermal treatment) without detailed calculations. Discuss measures to achieve the ease of manufacture. Discuss whether the same method of lubrication can be used for gears and bearings and specify seals and design elements related to lubrication.

Using solid modelling software (SolidWorks) develop a solid model and working drawings of the transmission designed (individually - not in a team). Print out several views of the solid model and attach it to the project report with your name on each printout. Each student prepares an individual project report.

On the title page of the report put project variant and name, gear layout and corresponding operating condition. Computational and descriptive parts of the report have to be supplemented with diagrams, sketches and drawings.

Solid model and drawings of the transmission will be assessed by a tutor that conducts solid modelling classes (submit a CD or USB with the solid model through the assignment minder by the submission date). Printouts of the solid model and drawings have to be attached to the project report to assess the conceptual design decisions.

After the title page make statement that the project has been carried out individually (except of the gearbox concept development) and all calculations have been carried out by the author of the project. Otherwise the project report may be a subject of plagiarism examination.

Operating conditions:

(i) Open-cut coalmine in tropical conditions. Dusty environment. Temperature range 20o to 45oC. and humidity 70 to 95%.
(ii) Arctic conditions. Clean environment. Temperature range - 40o to 0o C.

Gear Layouts:

(i) Two stage compound gear train or Two stage co-axial

(ii) Two stage bevel/cylindrical gear box Steps to be followed;

1. Selection of environment condition and layout of your choice

2. Select a variant from given variables [only 4 students can use one variable]

3. Use values provided in the variant to get initial design data such as input data and output data for the gear transmission

4. Based on these data select overall gear ratio and divide transmission into stages

5. Carry out kinematic calculations

6. Gear strength calculations

7. Shaft calculations

8. Bearing selection

9. Write a report based on your design calculations

10. Produce a solid model [parts, sub-assemblies, assemblies and housing] and drawings for your shaft assemblies and housing]

Variant 1:

Design of Machine Elements Gearbox design project variants

Design a Gearbox for a Horizontal Belt Conveyor shown in figure below

1967_figure1.jpg

Belt length =25m; Capacity (dead load on belt) =1000t/h; Belt weight = 20kg/m; Roller Diameter = 40mm; Bearing diameter = 20mm; Drum diameter = 100mm; Lever arm of reaction force = 7; Travel speed = 2m/sec.

Variant 2:

Design a Gearbox for a Horizontal Belt Conveyor shown in figure below

592_figure2.jpg

Belt length =20m; Capacity (dead load on belt) = 2000t/h; Belt weight = 10kg/m; Roller Diameter = 30mm; Bearing diameter = 12mm; Drum diameter = 150mm; Lever arm of reaction force = 7; Travel speed = 1m/sec.

Variant 3:

Design a Gearbox for a Horizontal Belt Conveyor shown in figure below

2043_figure3.jpg

Belt length = 20m; Capacity (dead load on belt)=500t/h; Belt weight = 10kg/m;
Roller Diameter=25mm; Bearing diameter = 12mm;Drum diameter = 150mm; Lever arm of reaction force = 6; Travel speed = 2m/sec; Diameter of driven wheel = 300mm; Diameter of drive wheel = 200mm; Efficiency for open transmission = 0.95

Variant 4:

Design a Gearbox for a Horizontal Belt Conveyor shown in figure below

18_figure4.jpg

Belt length = 25m; Capacity (dead load on belt) = 800t/h; Belt weight = 15kg/m; Roller Diameter = 35mm; Bearing diameter = 12mm; Drum diameter = 200mm; Lever arm of reaction force = 7; Travel speed = 1m/sec; Diameter of driven wheel = 300mm; Diameter of drive wheel = 200mm; Efficiency for open transmission = 0.9

Variant 5:

Design a Gearbox for an Incline Belt Conveyor shown in figure below

2445_figure5.jpg


Belt length = 40m; Capacity (dead load on belt) = 200t/h; Belt weight = 15kg/m; Roller Diameter = 30mm; Bearing diameter = 10mm; Drum diameter = 100mm; Incline angle = 10 degrees; Lever arm of reaction force = 6; Travel speed = 1m/sec.

Variant 6:

Design a Gearbox for an Incline Belt Conveyor shown in figure below

996_figure6.jpg

Belt length = 20m; Capacity (dead load on belt) = 300t/h; Belt weight = 15kg/m; Roller Diameter = 30mm; Bearing diameter = 10mm; Drum diameter = 80mm; Incline angle = 14 degrees; Lever arm of reaction force=6; Travel speed = 1m/sec.

Variant 7:

Design a Gearbox for an Incline Belt Conveyor shown in figure below

692_figure7.jpg

Belt length = 15m; Capacity (dead load on belt) = 200t/h; Belt weight = 15kg/m; Roller Diameter = 40mm; Bearing diameter = 15mm; Drum diameter = 90mm; Incline angle = 10o; Lever arm of reaction force = 6; Travel speed = 1m/sec; Diameter of driven wheel = 200mm; Diameter of drive wheel = 300mm; Efficiency for open transmission = 0.98

Variant 8:

Design a Gearbox for an Incline Belt Conveyor shown in figure below

692_figure7.jpg

Belt length = 20m; Capacity (dead load on belt) = 300t/h; Belt weight = 15kg/m; Roller Diameter = 30mm; Bearing diameter = 10mm; Drum diameter = 80mm; Incline angle = 14o; Lever arm of reaction force = 6; Travel speed = 1m/sec; Diameter of driven wheel = 200mm; Diameter of drive wheel = 300mm; Efficiency for open transmission = 0.98

Variant 9:

Design a Gearbox for a Horizontal Chain Conveyor shown in figure below

675_figure8.jpg


Chain length = 18m; Capacity (dead load on chain) = 2000t/h; Chain weight = 20kg/m; Pinion Diameter = 60mm; Sliding factor = 0.18; Travel speed = 2m/sec.

Variant 10:

Design a Gearbox for a Horizontal Chain Conveyor shown in figure below

675_figure8.jpg

Chain length =15m; Capacity (dead load on chain) = 1200t/h; Chain weight = 15kg/m; Pinion Diameter = 250mm; Sliding factor = 0.2; Travel speed = 1.5m/sec.

Variant 11:

Design a Gearbox for a Horizontal Chain Conveyor shown in figure below

840_figure10.jpg

Chain length = 10m; Capacity (dead load on chain) = 1000t/h; Chain weight = 20kg/m; Pinion Diameter = 100mm; Sliding factor=0.2; Travel speed = 1m/sec.; Diameter of driven wheel = 200mm; Diameter of drive wheel = 300mm; Efficiency for open transmission = 0.9

Variant 12:

Design a Gearbox for a Horizontal Chain Conveyor shown in figure below

2197_figure11.jpg

Chain length = 15m; Capacity (dead load on chain) = 1500t/h; Chain weight = 15kg/m; Pinion Diameter = 250mm; Sliding factor = 0.2; Travel speed = 1m/sec; Diameter of driven wheel = 200mm; Diameter of drive wheel = 300mm; Efficiency for open transmission = 0.9

Variant 13:

Design a Gearbox for an Incline Chain Conveyor shown in figure below

416_figure12.jpg

Chain length =25m; Capacity (dead load on chain) = 700t/h; Chain weight = 15kg/m; Pinion Diameter = 100mm; Incline angle = 12 degrees; Sliding factor = 0.3; Travel speed = 2m/sec;

Variant 14:

Design a Gearbox for an Incline Chain Conveyor shown in figure below

2346_figure13.jpg

Chain length = 25m; Capacity (dead load on chain) = 1000t/h; Chain weight = 15kg/m; Pinion Diameter = 300mm; Incline angle = 10 degrees; Sliding factor = 0.2; Travel speed = 1m/sec.

Variant 15:

Design a Gearbox for an Incline Chain Conveyor shown in figure below

1435_figure14.jpg

Chain length = 50m; Capacity (dead load on chain) = 1000t/h; Chain weight = 10kg/m; Pinion Diameter = 250mm; Incline angle = 12 degrees; Sliding factor = 0.18; Travel speed = 1m/sec. Diameter of a driven wheel = 200mm; Diameter of drive wheel = 100mm; Efficiency for open transmission = 0.9

Variant 16:

Design a Gearbox for an Incline Chain Conveyor shown in figure below

1435_figure14.jpg

Chain length =25m; Capacity (dead load on chain) = 1000t/h; Chain weight=15kg/m; Pinion Diameter = 300mm; Incline angle = 10 degrees; Sliding factor = 0.2; Travel speed = 1m/sec. Diameter of driven wheel = 200mm; Diameter of drive wheel = 300mm; Efficiency for open transmission = 0.9

Variant from 17 to 65 in attachment

Attachment:- Project variants.pdf

Reference no: EM131061702

Questions Cloud

Why is international trade important for south africa : Why is international trade important for South Africa
Difference between crowdsourcing and crowdfunding : What is the difference between crowdsourcing (p.265) and crowdfunding? (Is there a difference?) Where does each fit into the new product development process?
Analysis involve researching and comparing different element : Analysis involves researching and comparing different elements of an issue to acquire in-depth knowledge of its component parts. In this section of the paper you will demonstrate knowledge of the issue you selected by describing and comparing var..
Describe concept of total quality management : Describe the concept of total quality management (TQM) and major TQM techniques, such as quality circles, benchmarking, Six Sigma principles, quality partnering, and continuous improvement.
Determine forces acting on each shaft and support reactions : ENB316 Design of Machine Elements -  Use values provided in the variant to get initial design data such as input data and output data for the gear transmission and based on these data select overall gear ratio and divide transmission into stages
Difference between a long forward position : What is the difference between a long forward position and a short forward position?
Theoretical advantage of expected shortfall over var : What is the difference between expected shortfall and VaR? What is the theoretical advantage of expected shortfall over VaR?
What price should men and women be charged : Suppose that the demand equations for men and women for a particular good is as follows: Pw = 6 - (1/8000)Qw and Pm = 10 - (1/8000)Qm. If total quantity of good available is 56000, what price should men and women be charged?
What is meant by the gamma of an option position : What is meant by the gamma of an option position? What are the risk in the situation where the gamma of a position is large and negative and the delta is zero?

Reviews

Write a Review

 

Mechanical Engineering Questions & Answers

  Expression for the vanution of the wire temperature

Starting from the basic principles, derive a differential equation that governs the variation of the temperature of the wire as at Function of the distance x from the extrusion nozzle. Also specify the boundary conditions.

  Determine the clamping force c

The design of the cam-lock vise provides a quick positive clamping action with a friction coefficient between the cam and the movable jaw A of 0.30.

  Determine the distance it travels before it stops express

a particle is moving along a straight line such that when it is at the origin it has a velocity of 8 ms part a if it

  Three kilograms of air is in a pistoncylinder keeping

three kilograms of air is in a pistoncylinder keeping constant pressure at 27 celsius 300 kpa. it is not heated to

  A horizontal circular cylinder of diameter d 02m and

a horizontal circular cylinder of diameter d 0.2m and length 2m is elastically mounted on two springs and towing tank

  An electric heater in the tank transfers energy to the

a 2 phase liquid-vapor mixture of 2 kg of water is contained in a rigid insulated tank initially with a pressure of 1

  Velocity and acceleration analysis of mechanism

Velocity and Acceleration Analysis of mechanism. The mechanism in Fig. 5.54 has the dimensions: AB=200 mm, AC=600 mm, BD=1000 mm, La=150 mm, and Lb=250 mm. The driver link 1 rotates with a constant angular speed of n=60 rpm. Find the velocities and t..

  Assume this can be done in a reversible process by the use

a counterflowing heat exchanger cools air at 600 k 400 kpa to 320 k using a supply of water at 20degc 200 kpa. the

  Pressure gauge connected to the bottom of the tank

A pressure gauge connected to the bottom of the tank was calibrated with the top of the tank open to the atmosphere. The calibration curve is a plot of height of oil, h(m), versus p gauge (kPa). Sketch the expected shape of this plot. What height ..

  What ratio b/l will the bending moment at the midpoint

The beam ABCD shown in the figure has overhangs at each end and carries a uniform load of intensity q. For what ratio b/L will the bending moment at the midpoint of the beam be zero?

  Sketch the ball termperature verses time for 0lttlt1 hour

steel balls 12 mm in diameter are annealed by heating to 1150 k and then slowly cooling to 400 k in an air environment

  Assuming that each atom of the substitute is equally

vanadium v is often added to steel in minor amounts to form carbonitrides.a. if v were not available what elements

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd