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A 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.
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- See the answer A flat belt drive system is to be designed for an application in which the input shaft speed (driving pulley) is 1725 rpm, the driven shaft speed is to be approximately 960 rpm, and the power to be transmitted has been estimated as 3.0 horsepower. The driven machine has been evaluated and found to have characteristics of moderate shock loading during operation. The desired center distance between driving and driven pulleys is approximately 18 inches.Q2) A flat belt drive system is to be) designed for an application in which the input shaft speed is 1725 rpm, the driven shaft speed is to be approximately 960 rpm, and the power to be transmitted has been estimated as 2.5kW. The driven machine has been evaluated and found to have characteristics of moderate shock loading during operation. The desired center distance between driving and driven pulleys is approximately 0.5m. The recommended pulley diameter is 110mm. The belt is made of polyamid with density of 0.95g/cc and the coefficient of friction is 0.8. The limiting design-allowable tension per unit width for the polyamide is 613ON/m.a. If 5mm-thick belt material were chosen for this application, what belt width would be required?b. What initial tension would be required for ?proper operationA restaurant owner has decided to install a used fan that could deliver 18,000 CFM of air when running at 320 rpm. The fan is estimated to require at least 4.5 HP to deliver the volume of air needed. The owner has also a second hand motor rated at 5 HP and 1750 rpm. These data are all that the owner could provide you. He would like to use a standard chain and sprocket for the transmission. Use service factor = 1.1 and pitch = 0.5 inch.A) Determine the number of teeth and diameter of small sprocket. B) Determine the number of teeth and diameter of big sprocket. C) Determine the center distance and length of chain.
- 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 = 5mmQ.2 A reciprocating air compressor has a 5 ft-diameter flywheel 14 in wide, and it operates at 170 rev/min. An eight-pole squirrel-cage induction motor has nameplate data of 50 bhp at 875 rev/min. (CLO2) (a) Design a V-belt drive. (b) It is suggested that chain drive may be used for the power transmission, design a chain drive.A1. 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.
- 2a-e. Outline five transmission problems its causes and their solutions.Q. No 4. rev/min, moderate shock, an abnormally long 18-hour day, poor lubrication, cold temperatures, dirty surroundings, short drive C/p = 25. Ks = 1.3 & Design factor = 1.5 Select chain drive components for a 3:1 reduction, 70-hp input at 300The 12B series chain was chosen to deliver 12 kW of power from the electric motor at 1400 rpm. The transmission ratio is 2. What is the diameter of the pitch driving circle and diven sprocket?
- Design a chain drive to run a blower at 700 rpm for design factor of 1.5 moderate shock. The power to the blower is available from an 8 kW motor at 1400 rpm. The center distance is to be kept at 800 mm. Note the design should include the number of teeth of driven and driver sprocket, chain No, number of strands, and the length of the chain in term of chain pitch.It is required to design a chain drive with a duplex chain to connect a 15kW . 1400r.p.m electric motor to a transmission shaft running at 350 r.p.m.The operation involves moderate shocks.Assume that centre distance is nearly 40 times the chain pitch initially.What is the no of teeth on driving sprocket? What is the no of teeth in driven sprocket? Select a suitable roller chain.What is it's label? What is the pitch circle diameter of a driving sprocket? What is the pitch circle diameter of driven sprocket? Total no of chain links is Corrected center to center distance is?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.