Question
In: Mechanical Engineering
A gearbox is to be designed with a compound reverted gear train that transmits 25 horsepower...
A gearbox is to be designed with a compound reverted gear train that transmits 25 horsepower
with an input speed of 2500 rev/min. The output should deliver the power at a rotational speed in
the range of 280 to 300 rev/min. Spur gears with 20? pressure angle are to be used. Assuming a diametral pitch of 6 teeth/in. Please show all steps.
(a) Determine pitch diameters for each of the gears.
(b) Determine the pitch line velocities (in ft/min) for each set of gears.
(c) Determine the magnitudes of the tangential, radial, and total forces transmitted between each
set of gears.
(d) Determine the input torque.
(e) Determine the output torque, neglecting frictional losses.
Solutions
samet mamat answered 2 years agoRelated Solutions
A compound gear train with gears P, Q, R, S, T and U has number of...
A
compound gear train with gears P, Q, R, S, T and U has number of
teeth 10, 20, 02 40, 50, 80 and 100 respectively. Show the
arrangement of gears for a speed reduction of 50% and determine the
center distance between driving and driven shafts if the
diametrical pitch of the gears is 0.5
I
only have this question , cant give you more information
countershaft in Prob. 3–72, p. 152, is part of a speed reducing compound gear train using...
countershaft in Prob. 3–72, p. 152, is part of a speed reducing
compound gear train using
20° spur gears. A gear on the input shaft drives gear A. Gear B
drives a gear on the output
shaft. The input shaft runs at 2400 rev/min. Each gear reduces the
speed (and thus increases
the torque) by a 2 to 1 ratio. All gears are to be of the same
material. Since gear B is the
smallest gear, transmitting the largest load,...
This is for a VF-30 Bonfiglioli worm drive Gearbox 6.1 Housing 6.2 Worm Gear 6.3 Worm...
This is for a VF-30 Bonfiglioli worm drive Gearbox
6.1 Housing
6.2 Worm Gear
6.3 Worm Shaft
For each of the MAJOR components (6.1, 6.2 and 6.3) stated only,
analyze and identify the manufacturing processes used to make the
component – both primary (bulk shape forming) and secondary (or
finishing) processes. Include sub-sub-section as follows for each
component:
o 6.1.1 Component Observations: Describe your observations of
the physical component which indicate what manufacturing processes
were performed. Include an annotated picture...
A power train application requires the coupling of a spur gear to a transmission shaft operating...
A power train application requires the coupling of a spur gear
to a transmission shaft operating at 3600RPM. The coupling must
sustain a mean torque loading of 215Nm. There is a 20% torque
ripple introduced to the drive line from the load. Select and
design a coupling system using either a keyed coupling or an
interference coupling such that the section of the transmission
shaft at that location is minimized. Assume that the gear is
located at the midpoint of...
In the planetary gear train shown in Figure Q2, the annulus A rotates at 300 rpm...
In the planetary gear train shown in Figure Q2, the annulus A
rotates at 300 rpm about the axis of fixed wheel S which has 80
teeth. The armed spider (arm) is driven at 180 rpm. The annulus is
connected to input shaft whereas the arm is connected to the output
shaft. If the efficiency of gear system is 98% and input torque is
100 Nm, identify the following information regarding these problems
(i) The number of teeth on planet...
Design a speed-increasing gear train with a speed ratio of SPR defined below: Speed ration =...
Design a speed-increasing gear train with a speed
ratio of SPR defined below:
Speed ration = 13
The gear train does not need to be reverted. Specify
the appropriate numbers of teeth to minimize the gearbox size while
avoiding the interference problem in the teeth. Perform the
analysis subject to the following constraints:
A) Use a 20° pressure angle and match SPR exactly.
B) Use a 25° pressure angle and match SPR exactly.
C) Use a 20° pressure angle and...
Explain briefly the differences between simple, compound, and epicyclic gear trains
Explain briefly the differences between simple, compound, and
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Ooba Electronics is considering whether to develop a new line of robots designed to train dogs....
Ooba Electronics is considering whether to develop a new line of
robots designed to train dogs. The first generation robots will be
on the market for 3 years, after which Ooba could release an
improved second-generation dog-training robot. Data for the both
the first-generation and second-generation projects are summarized
below.
1st Generation: Robots are expected to sell for $600 in years 1
through 3.
Sales volume is expected to be 3000, 6000 and 10000 in years 1
to 3 respectively....
Ooba Electronics is considering whether to develop a new line of robots designed to train dogs....
Ooba Electronics is considering whether to develop a new line of
robots designed to train dogs. The first generation robots will be
on the market for 3 years, after which Ooba could release an
improved second-generation dog-training robot. Data for the both
the first-generation and second-generation projects are summarized
below.
1st Generation: Robots are expected to sell for $600 in years 1
through 3.
Sales volume is expected to be 3000, 6000 and 10000 in years 1
to 3 respectively....
A pair of gears with 25?, full-depth, involute teeth transmits 125 hp while the pinion rotates...
A pair of gears with 25?, full-depth, involute teeth transmits
125 hp while the pinion rotates at 2500 rpm. The diametral pitch is
4, and the quality number is A9. The pinion has 32 teeth and the
gear has 76 teeth. The face width is 1.5 in. The input power is
from a multicylinder gasoline engine, and the drive is for a low
speed water pump. The drive is a commercial enclosed gear unit.
Specify suitable materials for the pinion...
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