ZuoTi.Pro
Question
find v belt drive
design power
select belt type
determine shive size (belt speed 4000 ft/min)
find shive size from power rating figure
find rated power
find estimated centre distance
find belt length (by selecting standard belt length)
calculate actual centre distance
find contact angle for small shieve
determine correct factors
calculate correct power per belt
no. of belt needed
V-Belt Designing Sample Problem . Given: A 4 cylinder diesel engine runs at 80 hp, 1800 rpm, to drive a water pump (1200 rpm)

Standard V-Belt Cross-Section - Heavy Duty Belt Section Standard V-Belt Sections А 1 B Width , Thickness b. Minimum Sheave in
Inside Circumference Standard for V- Belt (Heavy Duty) Section A B Circumference, in 26, 31, 33, 35, 38, 42, 46, 48, 51, 53,
Length Conversion to Find Pitch Length Form Inside Circumference (Heavy Duty) Belt section А в С B E Quantity to be added 1.3
Horsepower for Heavy Duty V-Belt Belt Section Sheave Pitch Diameter, in Belt Speed, ft/min 2000 3000 4000 1000 5000 А 2.6 .3.
Horsepower for Heavy Duty V-Belt Belt Section Sheave Pitch Diameter, in Belt Speed, ft/min 2000 3000 4000 1000 5000 6.0 7.0 8
Standard V-Belt Length Correction Factor (Heavy Duty) Nominal Belt Length, in B Belts C Belts D Belts Length Factor A Belts E
Standard V-Belt Angle of Wrap Correction Factor (Heavy Duty) D-d с VY V Flat 8, deg 180 1743 1665 162.7 1569 151.0 145.1 139,
Standard V-Belt Cross-Section (Narrow Section) T 5/16 17/321 29/32 Inchis Metrie sie 3V ON SV IN SV 25N Number gives nominal
Standard V-Belt Length (Narrow Section) TABLE 7-2 Standard belt lengths for 3V,5V, and 8V belts (in) 3V and 5V 3V,5V, and 8V
Standard V-Belt Length Correction Factor (Narrow Section) 1.20 3V FIGURE 7-15 Belt length correction factor, C SV 1.16 1.12 8
Standard V-Belt Angle of Wrap Correction Factor (Narrow Section) 1.00 FIGURE 7-14 Angle of wrap correction factor, Co 96 92 8
Narrow Section V-Belt Power Rating 12 FIGURE 7-10 Power rating: 3V belts 7.95 10.55 Other standard JV shtave sires 13.95 in 1
dies 44 14.9 FIGURE 7-11 Power rating: 5V belts 13.1 13.9 12.4 40 15.9 Other standard 5V sheave sites 21.1 in 27.7 in 37.4 in
Narrow Section V-Belt Power Rating FIGURE 7-12 Power rating: 8V belts 22.8 110 Standard sheave pitch diameter 21.0 24.8 23.8
Narrow Section V-Belt Power Addition 2.00 2.01 FIGURE 7-13 Power added versus speed ratio: SV belts 1.NO 1.74 1.90 1750 rpm 1
Selection Chart For Narrow Section RPM OF FASTER SHAFT 9.000 7 000 1000 6.000 5.000 REFER TO APPLICATION ENGINEERING 3,000 NV
Service Factor For V-Belt TABLE 7-1 V-Belt Service Factors AC motors Normal torque? DC motor Shurt und Engines Multiple-cylin
Key Equations – V-Belts = • Belt speed (no slipping) Do, _ D20, Vi = R20, = R20, 2 2 D Pitch diameter • Speed Ratio of sheave

Key Equations – V-Belts TT • Belt length L = 2C + + CD (D2-D.) (D2 + D2) + 4C B+ VB– 32(D, - D) • Center Distance C= 16 Where
Key Equations - V-Belts • Angle of contact of belt on each sheave (D₂-D, 0 = 180º – 2 sin 20 0, = 180° + 2 sin D - D 20
V-belt Drive Design Process • Need rated power of the driving motor/prime mover. Base sizing on this. • Service factor based
V-belt Drive Design Process • Sizing of sheaves (use standard size). Most commercially available sheaves should be limited to
engineering   Mechanical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

We are solution: riven, Power (P) = 80hp speed (N) = 1800 8pm water pump speed (N2) = 12008pm for to for water pump, servicedi we are O foom power sating of sy belf selecting driver sheave (8)= 8.900 doiven Sheuve diameter (de) = 18,00 da =(VR)d, =Contact angle: Odi 1800- 281nt 13:38-8.9 2x 40.009 173.6° At conteret angle (08.) = 173.6°, woap Correction factor (Co)= 097

1 0
Add a comment
Know the answer?
Add Answer to:
find v belt drive design power select belt type determine shive size (belt speed 4000 ft/min)...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Design the V-belt drive for the following specifications: Specify the belt size, Belt type, The sheave...

    Design the V-belt drive for the following specifications: Specify the belt size, Belt type, The sheave size, the number of belts, the angles of wrap, the belt length, The center distance, The adjusted horsepower Driver type: AC MOTOR Driven machine: Fan Service hours/day: 22 Input speed: 1750 rpm Input power: 5 hp Nominal output speed: 725 rpm

  • Design a V-belt drive system by specify the belt size, the sheave sizes, and the number...

    Design a V-belt drive system by specify the belt size, the sheave sizes, and the number of belts, the actual output speed, and the center distance. Driver type :AC motor (HT) - Driven machine :Hammer mil - Service (h/day) :10 - Input speed (rpm) :890 - Input power (hp) :25 - Nominal output speed (rpm) :310

  • QUESTION 8 2 points Save Answer Inch sizes A, B, C, D for V-belts represent: Light...

    QUESTION 8 2 points Save Answer Inch sizes A, B, C, D for V-belts represent: Light duty V-belts FHP V-belts Narrow section V-belts Heavy duty industrial V-belts QUESTION 9 2 points Save Answer Vbelts with inch sizes of 3V, 5V and 8V represent Light duty industrial V-belts FHP V-belts o Industrial narrow section V-belts Heavy duty industrial V-belts QUESTION 10 2 points Save Answer The recommended maximum reduction ratio for a plain V-belt drive is 12:1 24:1

  • A V- belt drive is to transmit 24 kW of power from a 200 mm pitch...

    A V- belt drive is to transmit 24 kW of power from a 200 mm pitch sheave operating at 1500 rpm to a 600 mm diameter sheave. The distance between the input and the output shafts is 800 mm. The grove angle f = 40o and the coefficient of friction between the belt and the sheave is 0.25. The belt to be used weighs 0.9 kg/m and the allowable tension in the belt is 900 N. How many belts are...

  • Q – 2. A V-belt drive is to transmit 24 kW of power from a 200...

    Q – 2. A V-belt drive is to transmit 24 kW of power from a 200 mm pitch sheave operating at 1500 rpm to a 600 mm diameter sheave. The distance between the input and the output shafts is 800 mm. The grove angle f = 40° and the coefficient of friction between the belt and the sheave is 0.25. The belt to be used weighs 0.9 kg/m and the allowable tension in the belt is 900 N. How many...

  • 2. Given a belt drive system with the following parmeters: 25 HP electrice motor, motor speed of 870 rpm, service factor of 1.3, driving sheave diameter of 13.1 inches, driven sheave diametet of...

    2. Given a belt drive system with the following parmeters: 25 HP electrice motor, motor speed of 870 rpm, service factor of 1.3, driving sheave diameter of 13.1 inches, driven sheave diametet of 27.7 inches, and a belt length of 180 inches, find the design power, the center-to-center distance for the sheaves, and the output speed. Show all work Driving Driven e2 n1 Slack side 01 D, Vb Bet speed n2 D2 Tight side Note: D1 and 02 are pitch...

  • A motor apply power 10-hp split-phase motor speed at 1700 rpm is used to drive a...

    A motor apply power 10-hp split-phase motor speed at 1700 rpm is used to drive a rotary pump, which operates 24 hours per day. An engineer has specified a 7-in small sheave, an 10-in large sheave, and three C112 belts. The service factor of 1.2 was augmented by 0.1 because of the continuous-duty requirement. Analyze the drive and estimate the belt life in passes and hours.

  • QUESTION 2 Design a V-Beit drive that has the input sheave on the shaft of an...

    QUESTION 2 Design a V-Beit drive that has the input sheave on the shaft of an AC electric motor rated at 50 HP (normal torque) at 1200 RPM, ful load speed The drive is to a centrifugal pump that is used 12 hours (h) daily at approximately 450t 10 RPM. The linear beit speed must be 4,500 fimin, and the center distance can not exceed 40 inches Caloulate: (a) Design power (HP) b) Sheave diameters in inches (must be standard...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT