Innovation-Based Problem Solving Report
Combine Harvester
Student Name: Sahil Patil
Course: Farm Machinery Equipment-II
Program: Third Year B.Tech Agricultural Engineering
Academic Year: 2025-26
1. Problem Statement
In many villages, harvesting of crops like wheat, rice, and soybean still requires high labor and more time. Small
and medium farmers face difficulty due to shortage of labor during peak harvesting season. Traditional harvesting
methods also increase grain losses and operational cost. Therefore, there is a need for an efficient harvesting
machine that can perform cutting, threshing, and cleaning together.
2. Existing Method
Farmers generally use manual harvesting with sickles or separate machines for reaping and threshing. These
methods require more manpower, consume more time, and increase harvesting losses. Manual harvesting is also
physically tiring and expensive during labor shortages.
3. Proposed Solution
The proposed solution is a modified Combine Harvester suitable for small and medium-scale farms. The machine
combines reaping, threshing, separating, and cleaning operations in a single unit. It can reduce labor requirement,
save time, and improve harvesting efficiency.
4. Working Principle
The crop is cut by the cutter bar and fed into the threshing cylinder through the conveyor. The threshing unit
separates grains from stalks. The cleaning system removes dust and unwanted materials using sieves and
blowers. Finally, clean grains are collected in the grain tank.
5. Main Components
1. Cutter Bar
2. Reel
3. Conveyor
4. Threshing Cylinder
5. Concave
6. Cleaning Unit
7. Grain Tank
8. Power Unit / Engine
6. Materials Used
Mild steel frame, cutting blades, rubber belts, pulleys, bearings, conveyor chain, and diesel engine.
