Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
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Chapter 17, Problem 12P
To determine
The reason for centrifugal tension is negligible in metal belts.
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Derive the expression for Frictional torque on cone clutch based on uniform pressure theory
The following data relate to a cone clutch. The maximum and
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pressure is 14 x 10 N/m, coefficient of friction is 0.25.
Find :(i) The axial load(ii) The power transmitted at a speed
of 300 rpm.
Problem: A pump is driven by an electric motor through an open type flat belt drive. Determine the belt specificationsfor the following data.Motor pulley diameter= 400 mmPump pulley diameter = 800 mmCoefficient of friction for motor pulley = 0.30Coefficient of friction for pump pulley = 0.35Center distance between the pulleys=2000 mmRotational speed of the motor=2000 rpmPower transmission = 40kWdensity of belt material = 1000 kg/m3 width of the belt=240mmthickness of the belt = 5mm
Chapter 17 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 17 - Example 17-2 resulted in selection of a 10-in-wide...Ch. 17 - A 6-in-widc polyamide F-l flat belt is used to...Ch. 17 - Prob. 3PCh. 17 - A flat-belt drive is to consist of two...Ch. 17 - In solving problems and examining examples, you...Ch. 17 - Return to Ex. 17-1 and complete the following. (a)...Ch. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - Two shafts 20 ft apart, with axes in the same...
Ch. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - A designer has to select a metal-belt drive to...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Two B85 V belts are used in a drive composed of a...Ch. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - The geometric implications of a V-flat drive are...Ch. 17 - A 2-hp electric motor running at 1720 rev/min is...Ch. 17 - The standard roller-chain number indicates the...Ch. 17 - Prob. 24PCh. 17 - A double-strand no. 60 roller chain is used to...Ch. 17 - A four-strand no. 40 roller chain transmits power...Ch. 17 - Prob. 27PCh. 17 - Prob. 28PCh. 17 - Prob. 29PCh. 17 - Prob. 30PCh. 17 - Prob. 31PCh. 17 - Prob. 32PCh. 17 - Prob. 33PCh. 17 - For Prob. 17-29 estimate the elongation of the...
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- Note: If you don't know the solution please leave it but don't give me wrong solution. A flat open belt drive is used to transmit a power of 25kW from a motor shaft rotating at 950 rpm. The radius of the pulley of the motor shaft is 125mm while the radius of the puller of the driven shaft is 450mm. The center distance between the shafts is 2,250mm. the coefficient of friction is 0.25 and the density of the belt material is 950 kg/m^3. The belt width is 126 mm. The allowable stress is 2.6MPa. Determine the thickness of the belt.arrow_forwardA 1000 RPM speed reducer and 12KW power drives a conveyor belt at 400 RPM. the distance between the centers is approximately 800mm. Select a suitable chain for transmission, as follows:1) Solicitation with moderate shock, abnormal operating conditions, operating 24 hours a day.arrow_forwardA1. A flat belt drive for speed reduction has pulley diameters of 200 mm and 380 mm. Themaximum belt tension is not to exceed 620 N and it is required to transmit 1·8 kW at anoutput speed of 360 rev/min. Determine:(a) The input torque. (b) The belt speed. (c) The limiting slack side tension. (d) The initial tension at which the belt should be set.arrow_forward
- Falled To Post Resend it again فشل النشر ارسله مرة أخری Find the power transmitted by a belt running over a pulley of 500mm diameter at 300 rpm.The coefficient of friction between the belt and the pulley is 0.26, angle of lap 160 degree and the max. tension in the belt is 2400 N.arrow_forwardEXAMPLE(10) A multi plate clutch is to transmit 38KW at(9500) rpm. The inner and outer diameter were(14) &(20)cm .Take u =0.4 and the pressure on the friction plate as 350KN/m². CALCULATE the number of friction plate required.arrow_forward(b) A multiple plate clutch has more number of clutch plates. A typical clutch consist of the following important components which are drive (friction) plates and driven (steel) plates. If a multiple plate clutch with an effective diameter of 250 mm and 150 mm are able to transmit 60 kW at 1200 rpm. Also the end thrust is given as 4.5 kN and coefficient of friction is 0.13. Answer below questions; (i) Determine torque to be carry by friction clutch. (ii) Calculate number of plates required with uniform wear and uniform pressure theory. Compare your results.arrow_forward
- To ensure the maximum life of a belt, the setting up is very important. Discuss the initial tension requirements of a drive that consists of a V-belt and associated pulleys. Explain the main differences in application between flat belts and V-belts.arrow_forwardASAParrow_forwardA blower is driven by an electric motor though a belt drive. The motor runs at 750 r.p.m. For this power transmission, a flat belt of 8 mm thickness and 250 mm width is used. The diameter of the motor pulley is 350 mm and that of the blower pulley 1350 mm. The center distance between these pulleys is 1350 mm and an open belt configuration is adopted. The pulleys are made out of cast iron. The frictional coefficient between the belt and pulley is 0.35 and the permissible stress for the belt material can be taken as 2.5 N/mm2 with sufficient factor of safety. The mass of a belt is 2 kg per meter length. Find the maximum power transmitted without belt slipping in any one of the pulleys.arrow_forward
- A 60 hp air pump blower in 18hr/day service running at a speed of 500 rpm is driven by means of a multiple v-belt drive which is powered by a compressor-stator motor with speed 1300 rpm. The center distance must be between 30 to 40 inches and the available driver sheave diameter iS 14 inches. Recommend a multiple v-belt drive that respects the following condition stated.arrow_forwardA blower is driven by an electric motor though a belt drive. The motor runs at 750 r.p.m. For this power transmission, a flat belt of 8 mm thickness and 250 mm width is used. The diameter of the motor pulley is 350 mm and that of the blower pulley 1350 mm. The center distance between these pulleys is 1350 mm and an open belt configuration is adopted. The pulleys are made out of cast iron. The frictional coefficient between the belt and pulley is 0.35 and the permissible stress for the belt material can be taken as 2.5 N/mm2 with sufficient factor of safety. The mass of a belt is 2 kg per meter length. Find the maximum power transmitted without belt slipping in any one of the pulleys. Note: Sketch the belt drive system for both parts and label the given data on it.arrow_forwardDerive the expression for the braking torquearrow_forward
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