FARM MACHINERY DESIGN
AE …
Lecture : 3 Year : IV
Tutorial : 1 Part : I
Practical : 1.5
Course
Objective:
To
familiarize and orient the students in theory, planning, designing,
technological development, modification and exploitation of small and medium
scale farm machinery.
1.
Introduction to
Design Parameters and Procedure [3 hours]
1.1.
Principles
of Agricultural Machine Design
1.2.
Design
Parameters: Force, Stress, Reliability, Factor of Safety, Limit, Fit and Tolerances
1.3. Farm Machinery Design Procedure:
1.3.1. Recognition and Identification of
Need
1.3.2. Definition of Problem
1.3.3. Information on Functional
Requirements
1.3.4. Modeling and Simulation
1.3.5. Prototype and Its Performance
2.
Material of Construction
for Agricultural Machinery, their Composition and Heat Treatment Process [2 hours]
2.1.
General
Properties of Critical Components of Farm Machinery
2.2.
Material
Selection Criteria
3.
Force Analysis
on Tillage Tools and Hitching System [6 hours]
3.1.
Introduction
3.2.
Forces
Acting on Tillage Implement
3.3.
Measurement
of Soil Resistance
3.4.
Vertical
Effects of Hitching
3.5.
Horizontal
Effects of Hitching
3.6.
Design
Considerations of Hitches
3.7.
Hitch
System Design
4.
Design and
Selection of Power Transmission Components in Agricultural Machines [4 hours]
4.1. Introduction
4.2. V-belt, Chain, Rope, Gear, Shaft,
Hydraulic Drives and Joints
4.3. Capacities of Agricultural V-belts
and Chain Drives
4.4. PTO Drives
4.5. Telescopic Shaft
5.
Safety Aspects
in the Design of Agricultural Machines [2 hours]
5.1. Introduction
5.2. Safety Factors- Concept and
Application
5.3. Overload Safety Devices
6.
Design Methods
of Mould Board Plough [5 hours]
6.1. Types of Mould Board Plough
6.2. Design of Frontal Plan
6.3. Design of Cylindrical, Cylindroidal,
and Semi-Helical Type Mould Board
6.4. Standard Dimension of Plogh Share and
Landside
7.
Design Methods
of Disk Implements [4 hours]
7.1. Introduction to Disk Tools and Their
Design Considrations
7.2. Design of Disk Tools for Disk Harrow
and Disk Plough
7.3. Spacing in Multi Disk Implements
7.4. Determination of Loads for Design of
Standard
7.5. Selection of Bearings
8.
Design Methods
of Cultivators [3 hours]
8.1. Types of Cultivators and Their
Applications
8.2. Design of Soil Engaging Tools in
Cultivators- Shovel, Sweep
8.3. Design of Shank
9.
Design Methods
of Rotary Tillage Machines [4 hours]
9.1. Action of Rotary Tillage Machines
9.2. Soil Reactions in Rotary Tillage
Tools
9.3. Design Considerations for Rotavator
Blades
9.4. Rotavator Blade Arrangement and
Configuration
10.
Design Methods
of Sowing and Planting Implements [4 hours]
10.1. Design Parameters of Sowing and
Planting Implements
10.2. Design of Seed Metering Mechanism
10.3. Types of Furrow Openers and Covering
Devices
10.4. Design Considerations for Furrow
Openers
10.5. Design Considerations for Seed and
Fertilizer Box and Frame
11.
Design Methods
of Reaper [3 hours]
11.1. Types of Reaper and their Functional
Requirements
11.2. Components of a Vertical Conveyor
Reaper
11.3. Design and Selection of Different
Components of a Vertical Conveyor Reaper
11.4. Design Considerations and Selection
of Conveyors in Harvesting Machines
12.
Design Methods
of Threshers [5 hours]
12.1. Types of Threshers and Their Components
12.2. Bond between Grain and Spike
12.3. Parameters of Thresher drum- length,
diameter, speed, teeth arrangement
12.4. Selection of Drum
12.5. Drum-Concave Clearance
12.6. Design of Feeding Chute
12.7. Cleaning Sieves and their Design
Considerations
12.8. Thresher Adjustments
Tutorials and Practicals:
1.
Design
Problem on Force Analysis of Tillage Tools and Hitching System
2.
Design
Problems on Mould Board Plough
3.
Design
Problems on Disk Implements
4.
Design
Problems on Cultivators
5.
Design
Problems on Rotary Tillage Implements
6.
Design
Problems on Sowing and Planting Equipments
7.
Design
Problems on Vertical Conveyor Reaper
8.
Design
Problems on Rice and Wheat Threshers
References:
1.
D. N. Sharma and S. Mukesh. 2008. Farm
Machinery design: Principles and Problems. Jain Brothers, New Delhi (Latest
Edition).
2.
H. Bernacki, J. Haman and Cz Kanafojski.
1985. Agricultural Machines: Theory and Construction. Vol. I & II. US
Department of Commerce. National Technical Information Service.
3.
Bainer R., Kepner, R.A. and Barger E. L.
Principles of Farm Machinery. John Wiley & Sons Publications (latest
edition-Indian/Low Cost Edition Preferred)
4.
Agricultural Machinery Design and Data Hand
Book (Seeders and Planters). 1991. Regional Network of Agricultural
Mechanization (RNAM), Philippines.
5.
Wilkinson, Robert H. and Braunbeck, Oscar
A. 1997. Elements of Agricultural Machinery (Vol. I). FAO, Rome
6.
Crossley, P. and Kilgour J. 1983. Small
Farm Mechanization for Developing Countries. John Wiley & Sons, New York
(latest edition- Indian/Low Cost Edition Preferred)
7.
Krutz, G., Thomson L. and Claar P. 1984.
Design of Agricultural Machinery. John Wiley & Sons, New York (latest
edition- Indian/Low Cost Edition Preferred)
8.
Klenin, N.I., Popov I. F. and Sakun V.A.
1985. Agricultural Machines. Amerind Publishing Co. Pvt. Ltd.(latest edition-
Indian/Low Cost Edition Preferred)
9.
Sineokov. G.N. Design of Soil Tillage
Machines. Indian National Scientific Documentation Center, New Delhi.
10.
FAO Bulletin on Agricultural Engineering
Development: Selection of Mechanization Inputs. FAO Agricultural Service, Rome.
Evaluation Scheme:
The
questions will cover all the chapters in the Syllabus. The evaluation scheme
will be as indicated in the table below.
|
Chapter
|
Hour
|
Marks
Distribution*
|
|
1
|
3
|
8
|
|
2
|
2
|
|
3
|
6
|
8
|
|
4
|
4
|
8
|
|
5
|
2
|
|
6
|
5
|
8
|
|
7
|
4
|
8
|
|
8
|
3
|
8
|
|
9
|
4
|
8
|
|
10
|
4
|
8
|
|
11
|
3
|
8
|
|
12
|
5
|
8
|
|
Total
|
45
|
80
|
*There may be minor variation in marks distribution
Source:-Department of Agricultural Engineering
