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Fig. 14.17 A line shaft is to transmit 30 kW at 160 r.p.m. It is driven...
A pair of bevel gears is required to transmit 11 kW at 500 r.p.m. from the motor shaft to another...
A pair of bevel gears is required to transmit 11 kW at 500 r.p.m. from the motor shaft to another shaft, the speed reduction being 3 : 1. The shafts are inclined at 60º. The pinion is to have 24 teeth with a pressure angle of 20º and is to be made of cast steel having a static stress of 80 MPa. The gear is to be made of cast iron with a static stress of 55 MPa. The tooth...
Question 6 7 points A line shalt is driven by means of a motor placed very...
Question 6 7 points A line shalt is driven by means of a motor placed very below as shown in Figure 1. The puley on the line that is 1.9 meter in diameter and has bet tension TY-6.4 Non the light side of th belt. The tension Ty is one third of. Both these tensions may be assumed to be vertical. The puley weighs, W160 N. The puley is overhang from the shat, the distance of the center line of...
Determine the number of V-belts required to transmit a power of 60 kW at 750 rpm...
Determine the number of V-belts required to transmit a power of 60 kW at 750 rpm from an electric motor to a compressor shaft at 300 rpm. The larger pulley diameter is 1500 mm. The centre distance is 1650 mm, and overload factor is to be taken as 1.5. A belt with cross- sectional area of 350 mm², density of 1000 kg/m and having an allowable tensile strength of 2 MPa is available for use. The coefficient of friction between...
An overhang hollow shaft carries a 900 mm diameter pulley, whose centre is 250 mm from...
An overhang hollow shaft carries a 900 mm diameter pulley, whose centre is 250 mm from the centre of the nearest bearing. The weight of the pulley is 600 N and the angle of lap is 180°. The pulley is driven by a motor vertically below it. If permissible tension in the belt is 2650 N and if coefficient of friction between the belt and pulley surface is 0.3, estimate, diameters of shaft, when the internal 15. diameter is 0.6...
A hollow shaft is to transmit 20 kW at 300 rpm. The loading is such that...
A hollow shaft is to transmit 20 kW at 300 rpm. The loading is such that a maximum bending moment of 1000 Nm is induced in the shaft, together with an additional axial thrust of 15 kN. The shaft is supported on bearings 1500 mm apart. The values of shock and fatigue factors in torsion and bending (Kt and Kb) are 1.25 and 1.75 respectively. The inside diameter is 0.8 times the outside diameter. Determine the outer diameter of the...
The layout of a shaft carrying two pulleys 1 and 2, and supported on two bearings A and B is shown in Figure 2.2
Q2 (b) The layout of a shaft carrying two pulleys 1 and 2, and supported on two bearings A and B is shown in Figure 2.2. The shaft transmits 7.5 kW power at 360 rpm from pulley 1 to pulley 2. The diameters of pulley 1 and 2 are 250 mm and 500 mm respectively. The masses of pulley 1 and 2 are 10 kg and 30 kg respectively. The belt tensions act vertically downward and ratio of the belt...
Q2. Figure Q2 shows a shaft which transmits a power of 48 kW through flat belts. Pulley A is driven by a motor which rotates at 3000 rpm. The diameter of pulley A is 400 mm and that of pulley B is 25...
Q2. Figure Q2 shows a shaft which transmits a power of 48 kW through flat belts. Pulley A is driven by a motor which rotates at 3000 rpm. The diameter of pulley A is 400 mm and that of pulley B is 250 mm. The thickness of the belts is 4 mm and they are made of a material with density of 1100 kg/m3. Assume no sliding between pulleys and belts a) Calculate the speed of the belt and the...
PROBLEM 3: Figure 3 shows a top view ofa motor driven pump. The direction of the...
PROBLEM 3: Figure 3 shows a top view ofa motor driven pump. The direction of the gravitational acceleration is indicated by g, and is oriented orthogonal to this paper. The shaft of the motor is supported by two bearings in points A and B and the motor rotates at n 1000 rpm. The motor power is 10 kW. The radius of pulley A and B. a-,3 = 40 mm. Each pulley weighs 5 kg. The pump shaft is supported by...
static and material strength Problem 4- The Fig. below shows a shaft carrying a pulley A...
static and material strength
Problem 4- The Fig. below shows a shaft carrying a pulley A and a gear B and supported in two bearings C and D. The shaft transmits 30 kW at 200 r.p.m. The tangential force Ft on the gear B acts vertically upwards as shown. The pulley delivers the power through a belt to another pulley of equal diameter vertically below the pulley A. The ratio of tensions T1/T2 is equal to 2.5. The gear and...
QUESTION 9 A line shaft rotating at speed to transmit power through torque equal to 911...
QUESTION 9 A line shaft rotating at speed to transmit power through torque equal to 911 N.m. The shaft is made of mild steel with an allowable shear stress of 68 MPa. Neglecting the effect of bending moment on the shaft. Compute the diameter of the shaft (mm)? QUESTION 11 A gear carried by a shaft exerts a force on the shaft. The torque transmitted by the gear is equal to 377,890 N.mm. The Pitch diameter of the gear is...
Question 6 7 points A line shalt is driven by means of a motor placed very below as shown in Figure 1. The puley on the line that is 1.9 meter in diameter and has bet tension TY-6.4 Non the light side of th belt. The tension Ty is one third of. Both these tensions may be assumed to be vertical. The puley weighs, W160 N. The puley is overhang from the shat, the distance of the center line of...
Determine the number of V-belts required to transmit a power of 60 kW at 750 rpm from an electric motor to a compressor shaft at 300 rpm. The larger pulley diameter is 1500 mm. The centre distance is 1650 mm, and overload factor is to be taken as 1.5. A belt with cross- sectional area of 350 mm², density of 1000 kg/m and having an allowable tensile strength of 2 MPa is available for use. The coefficient of friction between...
An overhang hollow shaft carries a 900 mm diameter pulley, whose centre is 250 mm from the centre of the nearest bearing. The weight of the pulley is 600 N and the angle of lap is 180°. The pulley is driven by a motor vertically below it. If permissible tension in the belt is 2650 N and if coefficient of friction between the belt and pulley surface is 0.3, estimate, diameters of shaft, when the internal 15. diameter is 0.6...
Q2. Figure Q2 shows a shaft which transmits a power of 48 kW through flat belts. Pulley A is driven by a motor which rotates at 3000 rpm. The diameter of pulley A is 400 mm and that of pulley B is 250 mm. The thickness of the belts is 4 mm and they are made of a material with density of 1100 kg/m3. Assume no sliding between pulleys and belts a) Calculate the speed of the belt and the...
PROBLEM 3: Figure 3 shows a top view ofa motor driven pump. The direction of the gravitational acceleration is indicated by g, and is oriented orthogonal to this paper. The shaft of the motor is supported by two bearings in points A and B and the motor rotates at n 1000 rpm. The motor power is 10 kW. The radius of pulley A and B. a-,3 = 40 mm. Each pulley weighs 5 kg. The pump shaft is supported by...
static and material strength
Problem 4- The Fig. below shows a shaft carrying a pulley A and a gear B and supported in two bearings C and D. The shaft transmits 30 kW at 200 r.p.m. The tangential force Ft on the gear B acts vertically upwards as shown. The pulley delivers the power through a belt to another pulley of equal diameter vertically below the pulley A. The ratio of tensions T1/T2 is equal to 2.5. The gear and...
QUESTION 9 A line shaft rotating at speed to transmit power through torque equal to 911 N.m. The shaft is made of mild steel with an allowable shear stress of 68 MPa. Neglecting the effect of bending moment on the shaft. Compute the diameter of the shaft (mm)? QUESTION 11 A gear carried by a shaft exerts a force on the shaft. The torque transmitted by the gear is equal to 377,890 N.mm. The Pitch diameter of the gear is...
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