***Please Use Empirical Units*** Consider a chain-and-sprocket speed reducer with chain no. 60. The objective is...
***Please Use Empirical Units***
Consider a chain-and-sprocket speed reducer with chain no. 60.
The objective is to drive the load at 200 rpm using a motor that
rotates at a constant speed of 300 rpm and supplies a torque of 400
in-lbs. Assume that the input sprocket has 20 teeth.
a) For the input and output sprockets, specify the pitch, number of
teeth, and pitch diameters.
b) How much torque is available at the output shaft?
c) How much power is transmitted?
d) Is the chain strong enough? Check the power rating.
e) Recommend a method of lubrication.
Homework Answers
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***Please Use Empirical Units***
Consider a chain-and-sprocket speed reducer with chain no. 60.
The objective is...
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***Please Use Empirical Units*** A roller chain no. 60 drives an output sprocket at 300 rpm. The input sprocket has 15 teeth and the output sprocket has 21 teeth. Determine the a) diameter of each sprocket, b) input speed in rpm, c) chain speed in ft/min, d) power rating for the chain, and e) type of lubrication.
5 kW of power will be transmitted via a chain-sprocket system. The rotational speed of input...
5 kW of power will be transmitted via a chain-sprocket system. The rotational speed of input shaft is 20 rpm. The required approximate rotational speed of the input shaft is 20 rpm. Required approximate rotational speed for the out shaft is 7 rpm. The approximate distance between center lines of input and output shafts should be 900 mm. This chain-sprocket system is used for an elevator and it is asked to use a single or multiple DIN 8187 chain with...
For any of the sets of problem data in Tables 7-27 and 7-28, use manufacturers' catalogs to speci...
For any of the sets of problem data in Tables 7-27 and 7-28, use manufacturers' catalogs to specify the belt size and sprocket sizes for synchronous belts. See Internet sites 3-6, 8, 9,11, 14, and 16 for manufacturers of synchronous belts and sprockets. Table 7-27 V-Belt Drive Design Problems Input power (hp) ckW) (rpm) 18.6 3.73 725 29.8 149 74 6 machine h/day) 310 AC motor (HT AC motor (NT 6-cylinder engine DC mctor (compound АС motor (HT) 870 1750...
Design Problem Design a speed reducer gear box that will take 1.5 kW power from an...
Design Problem Design a speed reducer gear box that will take 1.5 kW power from an electric motor rotating at 3000 rpm (clockwise) and deliver it to a machine which operates at 2 different speeds, 1000 rpm (clockwise) and 500 rpm (counter-clockwise). Use Spur Gears with 20° pressure angle and 5mm module. Gear box should be of smallest possible size. The gear shift mechanism is not the part of the design A 2-speed double-reduction speed reducer is shown in the...
Driver Type: Steam Turbine Input Power: 25 hp Use multi strand: 2 Driven Machine: Centrifugal Pump...
Driver Type: Steam Turbine Input Power: 25 hp Use multi strand: 2 Driven Machine: Centrifugal Pump Input Speed: 1900 rpm Nominal output Speed: varies between 770 and 780 rpm Specify the chain number and chain size, the sizes and number of teeth on each sprockets, The number of chain pitches, maximum center distance, chain length, Angles of wrap, Sprockets diameter, Type of lubrication
Detail design a gear reducer that would meet (at a minimum) the following design specification: • ...
Detail design a gear reducer that would meet (at a minimum) the following design specification: • Power to be delivered: 40 hp • Input speed: 1750 rpm • Output speed: 40–44 rev/min • Usually low shock levels, occasional moderate shock • Input and output shafts extend 4 in outside gearbox • Maximum gearbox size: 18-in x 18-in base, 36-in height • output shaft and input shaft in-line • Connection to a roller and conveyor via a chain drive Other than...
need solution step by step to question “H” (H) For the shaft of question (G) above, what are the X and Y forces on each of bearings B and E? Upward Y force on bearing E: Rey263 b Upward Y force...
need solution step by step to question “H”
(H) For the shaft of question (G) above, what are the X and Y forces on each of bearings B and E? Upward Y force on bearing E: Rey263 b Upward Y force on bearing B: Rey1,838 b Outward X force on bearing E: Rex Outward X force on bearing B: Re1,569 b Answer Box 804 lb 36 REy Sum of Y moments around E = 0 Sum of Y Forces on...
Y=3390 Q=90 The double reduction helical gear reducer shown in Figure 2 transmits 40000+4Y W (Y...
Y=3390
Q=90
The double reduction helical gear reducer shown in Figure 2 transmits 40000+4Y W (Y is the last 4 digits of your student identification number). Shaft 1 is the input, rotating at 200+o rad/s and receiving power directly from the electric motor through a flexible coupling. Shaft 2 rotates at 90+ q rad/s. shaft 3 is the output, rotating at 27+Q rad/s. (where Q are the last two digits of your student identification number). A chain sprocket is mounted...
You are the designer and you have been asked to design a speed reducer (gearbox) that will take p...
power = 3 kW
if need any more information please ask !!!
You are the designer and you have been asked to design a speed reducer (gearbox) that will take power from the shaft of an electric motor rotating at 1500 rpm and deliver it to a machine that is to operate at approximately at 200 rpm Assume that you have decided to use spur gears to transmit the power [A power equal to the last one digits of your...
2. Consider the triple speed reduction gear box shown in Figure 1. All the gears are...
2. Consider the triple speed reduction gear box shown in Figure 1. All the gears are made with a diametral pitch of 16 in. The input of the gear train is gear A, and the output is gear G. The gear train transmits an input toque of 250 lb-in, at a speed of 2,500 rpm clockwise. The number of teeth on each gear is given as follows: NA 24 teeth, Na = 60 teeth, Nc 20 teeth, No 58 teeth,...
For any of the sets of problem data in Tables 7-27 and 7-28, use manufacturers' catalogs to specify the belt size and sprocket sizes for synchronous belts. See Internet sites 3-6, 8, 9,11, 14, and 16 for manufacturers of synchronous belts and sprockets. Table 7-27 V-Belt Drive Design Problems Input power (hp) ckW) (rpm) 18.6 3.73 725 29.8 149 74 6 machine h/day) 310 AC motor (HT AC motor (NT 6-cylinder engine DC mctor (compound АС motor (HT) 870 1750...
Design Problem Design a speed reducer gear box that will take 1.5 kW power from an electric motor rotating at 3000 rpm (clockwise) and deliver it to a machine which operates at 2 different speeds, 1000 rpm (clockwise) and 500 rpm (counter-clockwise). Use Spur Gears with 20° pressure angle and 5mm module. Gear box should be of smallest possible size. The gear shift mechanism is not the part of the design A 2-speed double-reduction speed reducer is shown in the...
need solution step by step to question “H”
(H) For the shaft of question (G) above, what are the X and Y forces on each of bearings B and E? Upward Y force on bearing E: Rey263 b Upward Y force on bearing B: Rey1,838 b Outward X force on bearing E: Rex Outward X force on bearing B: Re1,569 b Answer Box 804 lb 36 REy Sum of Y moments around E = 0 Sum of Y Forces on...
Y=3390
Q=90
The double reduction helical gear reducer shown in Figure 2 transmits 40000+4Y W (Y is the last 4 digits of your student identification number). Shaft 1 is the input, rotating at 200+o rad/s and receiving power directly from the electric motor through a flexible coupling. Shaft 2 rotates at 90+ q rad/s. shaft 3 is the output, rotating at 27+Q rad/s. (where Q are the last two digits of your student identification number). A chain sprocket is mounted...
power = 3 kW
if need any more information please ask !!!
You are the designer and you have been asked to design a speed reducer (gearbox) that will take power from the shaft of an electric motor rotating at 1500 rpm and deliver it to a machine that is to operate at approximately at 200 rpm Assume that you have decided to use spur gears to transmit the power [A power equal to the last one digits of your...
2. Consider the triple speed reduction gear box shown in Figure 1. All the gears are made with a diametral pitch of 16 in. The input of the gear train is gear A, and the output is gear G. The gear train transmits an input toque of 250 lb-in, at a speed of 2,500 rpm clockwise. The number of teeth on each gear is given as follows: NA 24 teeth, Na = 60 teeth, Nc 20 teeth, No 58 teeth,...
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