Chapter 130 Drivelines - Nicholas Gaspar

Units 5 & 6: Closed Gear Systems If two discs are fixed by an axis, their radial velocity and acceleration is equal. Essay Questions Multiple-Choice Question A. True B. False tandem are called what? What important element must we consider when re-scaling a gear system design? A. Space between the elements Cog C. Rack B. Recommended minimal element thickness C. Removal of support material is still possible D. None of the above D. Transmission g ng gearayoo ear teeth prevent eli C. Decreaseo D. Gear svstems are easy to design and manufacture Torce Ked ihe e uDove In Spur gear systems, the tooth profile is A. inclined to the axis of rotation. B. vertical to the axis of rotation. C. parallel to the axis of rotation. D. None of these

Calculate the final drive gear ratio for a differential using a ring gear with 49 teeth and a matching pinion gear with 15 teeth.

40. Calculate the final drive gear ratio for a differential using a ring gear with 49 teeth and a matching pinion gear with 15 teeth. You may use a calculator. Final gear ratio = %3D

A multi-gear train system is shown in Figure 4.1 It consists of a driver, idler and driven gear. The driver gear has 40 teeth, the idler has 20 teeth while the driven gear has 10 teeth. Determine the gear ratio for the multi-gear train system. Driver Idler Driven Figure 4.1 Multi Gear Train

The advantage of herringbone gear compared to a helical gear is the internal cancellation of its axial thrust loads Select one: True False

SYSTEM AND CONTROL (MECHANICAL) (SA2) Gear B and C are mounted on a central shaft and they rotate at the same speed/as a unit. Gear A is the driver and gear D is driven. Driver Gear (10 Teeth) Driven Gear (50 Teeth) Queshions If gear A rotates in a clockwise direction, to which direction will gear C rotates? 1 (2) .2 If gear B rotates in an anti-clockwise direction, to which direction will gear C rotates (2) 3 Calculate the gear ration of the system (6) .4 Draw the systems diagram of the above mechanism (6) [16]

Identify label H in the following spur gear diagram. Pinion (driving) 1. Angle of- approach Angle of recess Position of teeth leaving contact Position of teeth entering contact H. Angle of approach Angle of recess

Circle either True or False for the statements below. True or False If two interlocking gears have the same radius, then the absolute value of the torque in each gear will be the same. True or False You can increase power by increasing the angular velocity of the shaft. True or False You can increase power by slowing down the frequency of the shaft. True or False Interlocking gears of different radii must experience the same angle of twist.

Units 5 & 6: Closed Gear Systems If two discs are fixed by an axis, their radial velocity and acceleration equal. Essay Questions Multiple-Choice Questions A. True B. False Two or more gears working in tandem are called what? What important element must we consider when re-scaling a gear system design? A. Torque В. Сод C. Rack D. Transmission A. Space between the elements B. Recommended minimal element thickness C. Removal of support material is still possible D. None of the above What are the advantage(s) of using gear systems? Gear teeth prevent slippage Few elements can create great force C. Decreased power creates more force Gear systems are easy to design and manufacture A. В. D. Force transmitted from a small gear diameter to a larger gear diameter is A. Increased B. Decreased C. Stays the same D. None of the above In Spur gear systems, the tooth profile is A. inclined to the axis of rotation. B. vertical to the axis of rotation. C. parallel to the axis of rotation. D. None of…

3. You have engaged in open discussion in which you have to evaluate the conditions needed for anepicyclic gear train to become a differential. Using appropriate schematic and hand sketch show how adifferential works in this application

When an idler gear is placed between the driving and driven gears, the driven gear:a. rotates the opposite direction as the drive gearb. rotates the same direction as the drive gearc. reduces the torque transfer from the drivegear to the driven geard. none of the above

State two advantages of a compound gear train over a simple gear train

Gears and crankshaft are transmitting type of short distance power type of transmission.  Select one: True False

The advantage of the helical gear drive over the spur gear drive is 1) teeth failure can be controlled 2) ease to manufacturé 3) the contact area is less during meshing 4) the contact area is more during meshing

Name the three drive configurations that a gearsetcan transfer torque.

QUESTION 1 GEARS [50]The client requires a single step-up spur gearbox to transmit a 10 kW power from a shaft rotating at 1000 rpm, while the output speed must be 1700 rpm. The material for gear and pinion is 817M40 and 655M13, respectively. Use table 6.10 on page 128 to select the suitable gear and pinion.1.1 Briefly state the problem. (3)1.2 State the design specification considering the following design factors:1. Functionality2. Stress8)1.3 State formula and standards relevant to the single step-up spur gearbox design. (4)1.4 If the pinion has 20 teeth, use the Lewis formula to determine the face width of the pinion and gear. Then, do one set of calculations and tabulate the answers.(33)1.5 Conclusion. (2)

Part 2: Gears www w The smaller gear wheel is connected to an electric motor, while the larger gear is connected to a turning platform. 1. Which gear is the 'drive gear' and which is the 'driven gear'? 2. Calculate the gear ratio by counting the teeth on each gear wheel. 3. Calculate the gear ratio by measuring the diameter on each gear wheel. 4. If the drive gear rotates clockwise, which way will the driven gear turn? 5. If the drive gear rotates at 60 RPM, what is the rotation rate of the driven gear? 6. If the drive gear generates 1 Nm (torque), what is the torque of the driven gear?

Unit 5 & 6: Closed Gear Systems ym ge A Spar :: Queions BA. St kems C L- 22 a)yemiz 2. $$ A Tr Mue - ..F Two or more gears working in tandem are called what? A. Torque B. Cog C. Rack D. Transmission What are the advantage(s) of using gear systems? A. Gear teeth prevent slippage B. Few elements can create great force C. Decreased power creates more force D. Gear systems are easy to design and manufacture Force transmitted from a small gear diameter to a larger gear diameter is A. Increased B. Decreased C. Stays the same D. None of the above In Spur gear systems, the tooth profile is A. inclined to the axis of rotation. B. vertical to the axis of rotation. C. parallel to the axis of rotation. D. None of these % edu.curriculum@stratasys.com 11 r for 3D Sumeuing That movesS If two discs are fixed by an axis, their radial velocity and acceleration is equal. W A. True B. False What important element must we consider when re-scaling a gear system design? A. Space between the elements B.…

When discussing the various gear positions of a transfer case, Technician A says that when the transfer case is in low, the overall gear ratio is numerically increased. Technician B says that when the transfer case is in the high position, the vehicle operates in an overdrive mode due to the decrease in torque multiplication. Who is correct?

Q Explain the following terms with reference to Spur gears: ①Pitch circle 2 pressure angle 3 Circular Pitch ⑤Backlash ⑥ Base Circle 4 Addendum

# of teeth input gear = 20 # of teeth output gear = 80 What is the gear ratio (in lowest terms)? A 20 TEETH DRIVER (EFFORT) O20:80 O 4:1 O 80:20 O 1:4 B 80 TEETH By Ryan DRIVEN (LOAD)

Q.2 Determine speed of output gear if the input gear rotate at 200rpm. N₁-10, N₂-200, N₁-10, N₁-62, Ns-36, N6-22, and N-8 (1 Output Fixed Figure 6.16 Planetary gear train. Input

Why toothed gears are preferred over Rope, Belt, and chain drive? Also specify the application for each drive system.   Answer with word clearly please