A hoist rope drum with an effective diameter of 200mm is used with a single layer on the drum. The hoist is required to lift a load of 10,000 at a speed of 15 m/min. What is the required rpm of the drum. Please add a number only, if you think it is 2.54pm, then simply type 2.54 (answer to 2 d.p).
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- A shaft turning 200 RPM is to drive another shaft at 250 RPM connected in open belt. Find the diameters of the two pulleys, using integral number of inches for each diameter, to give as nearly as possible a belt speed of 3500 FPM.Homework Verify the value of the constant, 63 000 for the following equation in order to have the torque in lb.in units. T = 63000 P n ……………... (3-6)A 20-in diameter rotates at 200 RPM and a 40-in diameter pulley are used with an open belt to connect two shafts 6 ft. apart. Determine the length (inches) and speed of the belt (FPM). PLLEASE PROVIDE ILLUSTRATION
- A shaft turning 150 RPM is to drive another shaft at 200 RPM. Find the diameters of the two pulleys, using integral number of inches for each diameter, to give as nearly as possible a belt speed of 2500 FPM. Please provide illustration.two pulleys are connected by a belt. The nubers of RPM of the two pulleys vary inversely as their diameters. A pulley having a diameter of 25cm is turning at 900 rpm. what is the number of RPM of the second pulley wgich has a diameter of 40cmIS. 03 16. The shaft, as shown in Fig. 14.20, is driven by pulley B from an electric motor. Another belt drive from pulley A is running a compressor. The belt tensions for pulley A are 1500 N and 600 N. The ratio of belt tensions for pulley B is 3.5. B. TA2 A D. TA 150 -100- TB2 100 All dimensions in mm. Fig. 14.20 The diameter of pulley A is 150 mm and the diameter of pulley B is 480 mm. The allowable tensile stress for the shaft material is 170 MPa and the allowable shear stress is 85 MPa. Taking torsion and bending factors as 1.25 and 1.75 respectively, find the shaft diameter. Also find out the dimensions for a hollow shaft with outside diameter limited to 30 mm. Compare the weights of the two shafts. Ans. 30 mm : 24 mm: 1.82]
- The diagram below shows a shaft with spur gear (B), bevel gear(D), and two supporting bearings (A and C). All dimensions are in millimeters and all shoulder fillets (at points where diameter changes) have a radius of . The pressure angle for the spur gear at B is . The pressure angle for the bevel gear at D is and the bevel angle is . Note that the shaft is designed so that only bearing A takes thrust. The shaft is made of steel with . All the critical surfaces are ground. The shaft rotates at . A motor with a power of is connected at the bevel gear through another bevel gear. This drives the shaft. A load is connected through another spur gear at the output spur gear at B. The standard deviation on the power is . (a) Determine the forces acting on the gears. Recall that for a spur gear, the relation between the tangential component of the force and the radial component of the force and the pressure angle is given by . For this bevel gear, the axial (thrust) component of the force on…Calculate MobilityQuestions 10 through 12 pertain to the situation described below: A hydraulic brake system is shown in the figure below. The radius of the input piston is 1.20 cm and the radius of the output plungers is 3.40 cm. The lengths associated with the lever arms of the brake pedal are L1 delivered by each output plunger in the given situation is 273 N with the force applied by the foot being Fa. :4.70 cm and L2 13.0 cm. Assume that the force Fa (10) What is the gauge pressure inside the brake fluid? (A) 69.2 kPa; (B) 72.2 kPa; (C) 75.2 kPa; (D) 78.2 kPa; (E) 81.2 kPa. (11) What is the torque (magnitude) produced by F,? (A) 1.60 m N; (B) 1.80 m N; (C) 2.00 m N; (D) 2.20 m N; (E) 2.40 m N. (12) What is the value of F? (A) 7.53 N; (B) 8.03 N; (C) 8.53 N; (D) 9.03 N; (E) 9.53 N.
- don't make the mistakeA child rides his bike at a speed of 5ft/s. The dimensions of the tire and sprockets are given below. D₁ DIS Diameter of tire, D₁ = 22in Diameter of rear sprocket, Drs = 2.75in Diameter of front sprocket, Dfs = 6.5in Diameter of crank, Dc = 10in V a. How fast is the rear wheel spinning in rad/s? b. How fast is the crank spinning in rad/s? X Bogo Note: This isn't an image I generated, and you may find that velocity vector near the bottom misleading. I wouldn't have drawn it Dimensions: c. How fast are his feet moving in ft/s relative to the bike frame? Dfs De BY NO SA 2020 Joe GraberThe diagram below shows a shaft with spur gear (B), bevel gear(D), and two supporting bearings (A and C). All dimensions are in millimeters and all shoulder fillets (at points where diameter changes) have a radius of 4.4 mm. The pressure angle for the spur gear at B is 16 °. The pressure angle for the bevel gear at D is 18° and the bevel angle is 45°. Note that the shaft is designed so that only bearing A takes thrust. The shaft is made of steel with Su= 1060 MPa. All the critical surfaces are ground. The shaft rotates at 1820 rpm. A motor with a power of 650 kW is connected at the bevel gear through another bevel gear. This drives the shaft. A load is connected through another spur gear at the output spur gear at B. The standard deviation on the power is 60 kW. (a) Determine the forces acting on the gears. Recall that for a spur gear, the relation between the tangential component of the force and the radial component of the force and the pressure angle is given by F₁ = F₂.tan(o). For…