A disc type mower is operated by PTO with 6 discs with a shaft of 0.4 m/disc. The specific energy required for cutting is 2.1 KJ/m^2 and specific power losses due to air come stubble and gear train friction is 2 kw/m of cutting width. If the mower with tractor requires a propelling force of 2 KN the total power requirement for carrying out moving in Kw at forward speed of 3 km/h is ____

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A mower has driven wheel of 60 cm diameter. The crank of mower makes 550 rpm, when it is driven by a tractor at a speed of 2 km/h. If speed ratio between the crank wheel and land wheel is changed to 27:1, calculate the increase in speed of mower to maintain the same speed of crank.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Sep 24, 2022 in Machine Kinematics by Leo (38.0k points)

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A tractor has 1.6 m rear wheel diameter. If the e gear ratio of final drive and differential gear is 5:1 and 4:1 respectively calculate forward speed of tractor in kilometre per hour.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A multiple disc clutch, steel on bronze is to transmit 6 HP at 750 rpm. The inner radius of contact is 4cm and outer radius of contact is 7 cm. Coefficient of friction is 0.1 and the average allowable pressure is 3.5 kgf/cm^2. Find the actual axial force required.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A road roller has a total mass of 12 tonnes. The front roller has a mass of 2 tonnes, a radius of gyration of 0.4 m and a diameter of 1.2 m. The rear axle, together with its wheels, has a mass of 2.5 tonnes, a radius of gyration of 0.6 m and a diameter of 1.5 m. Calculate braking force required to bring the roller to rest from 9 km/h in 6 m on the level.

asked Sep 23, 2022 in Machine Kinematics by Leo (38.0k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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A 2-wheel drive 35hp tractor has 1.5 rear wheel diameter. The engine runs at 1200 rev/min. the total reduction of speed is 30:1. Find the travelling speed of the tractor in km/h and the tractive force at each driving wheel.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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