9.0 THRESHING EQUIPMENT

 

9.1

Pedal Operated Paddy Thresher

9.2

Multi-crop Thresher

9.3

Axial-flow Paddy Thresher

9.4

Maize De-Husker Cum Sheller

9.1 PEDAL OPERATED PADDY THRESHER

Features

 

It consists of wire-loop type threshing cylinder, power transmission system, mild steel sheet body and foot pedal. The threshing cylinder consists of wire-loops of U shape embedded in wooden or metallic strips joined to two discs. A shaft carries the threshing cylinder and is connected to the transmission system. The transmission system consists of meshed gears or sprocket-chain mechanism. The larger gear or sprocket is connected to foot pedal/bar with links. The foot pedal/bar is always in raised position. On pressing the pedal the threshing cylinder starts rotating. For continuous rotation of the cylinder, the pedal is lowered and raised repeatedly. For operation, paddy bundle is held in hands and earhead portion of the crop is placed on the rotating cylinder. The wire-loops hit the earheads and grain get detached from the rest of the crop.

 

Specification

 

Dimensions (LXWXH) (mm)

Cylinder size (mm)

Loop wire diameter (mm)

Number of wire loops

Number of wire loop strips

Transmission system

Weight (kg)

Power source

 

 

 

:        1250 x 650 x 630

:        400 diameter x 600 length

:        4

:        44

:        12

:        Pedal Crank mechanism with 1:4 gear ratio

:         36

:        One persons

 

Uses:

 

It is used for threshing of paddy crop. It easy to operate and does not require much effort in its operation as it is operated by foot.

 

Cost of Machine : Rs.10000/-

 

 

 

9.2 MULTI-CROP THRESHER

 

Features

 

The thresher consists of rasp bar threshing cylinder, oscillating sieves, concave and winnowing and cleaning attachment. The rasp-bar cylinder is made of cast iron rings, sheet metal and toothed racks and is fitted on the main shaft running on two heavy pedal bearings. Various pulleys of different sizes are fitted on this shaft to transmit power to winnowing and fan attachment. Adjustments for cylinder and blower speeds and concave clearance are provided to make the machines suitable for threshing various crops. It has a safe feeding chute attached to it as per BIS standard.

 

 

Specification

 

Diameter of beater shaft (mm)

Length of beater shaft (mm)

Diameter of cylinder with rasp-bar (mm)

Length of the cylinder(mm)

Height of hopper from ground level (mm)

Capacity (kg/h)

Power requirement (hp/kW)

 

 

 

:      42

:      1400

:      416

:      560

:      1500

:      600-1000

:      7.5/5.6

 

Uses:

 

It is suitable for threshing paddy, ragi, jowar, maize, sunflower, wheat, mustard etc.

 

Cost of Machine : Rs.60,000 80,000/-

 

 

 

9.2 AXIAL-FLOW PADDY THRESHER

 

Features

 

It consists of a threshing cylinder, concave, cylinder casing, cleaning system and feeding chute. In axial flow concept, the crop is fed from one end, it moves axially and the straw is thrown out from the other end after complete threshing of the crop. During threshing, the crop rotates three and half times around the cylinder and all the grains get detached. The threshing cylinder is of peg type. The casing of the thresher has 7 louvers for moving the crop axially. Two aspirator blowers and two sieves are provided for cleaning the grain.

 

Specifications

Length (mm)

Width (mm)  

Height(mm) :

Feeding device :

 Length of feeding chute (mm) :

Width of feeding chute (mm)

Type of cylinder

Cylinder size, tip diameter x length(m m)

Length of concave (mm)

Width of concave (mm)

Concave clearance (mm)

Type, size and number of blowers

 

 

Weight (kg)

Power requirement(hp/kW) :

 

:      2030

:      3050

:      1960

:      Feeding chute, manually

:      905

:      110

:      Spike tooth

:      770 x 1500

:      840

:      570

:      18-21

:      Aspirator type, two blowers of    

       400 mm diameter and 160 mm  

       width

:      730

:      35/26.25, tractor PTO

 

Uses:

It is used for threshing of paddy crop.

 

Cost of Machine : Rs.80,000/-

9.3 MAIZE DE-HUSKER CUM SHELLER

"VIDHATA"  BASANT PRODUCTS (INDIA)

Features

Maize dehusker cum sheller are of two types namely, spike tooth type and axial flow type. In the spike tooth type sheller, pegs are staggered at varying heights for better shelling efficiency. The spikes are placed in 6 rows with 6 spikes in each row. The sieves have 1.25 cm diameter opening to separate the shelled maize from husk. In axial flow type threshers, pegs are provided on the cylinder and louvers were provided on the upper periphery of the drum to convey the crop to the outlet.

 

Specification

Length (mm)                                                   

Width (mm)                                       

Height (mm)                                 

Dia. of threshing cylinder (mm)                     

Length of threshing cylinder (mm)    

Cylinder speed (m/s)              

Type of threshing drum         

Type of blower      

No of sieves

Opening size of upper sieve (mm)

Opening size of lower sieve (mm)                            

Concave clearance (mm)                    

Opening size of concave (mm)              

Moisture content of cobs (%)

Threshing Capacity(kg/h)

Power requirement(hp/kW)            

 

Spike tooth type

1765

1065

1570

480     

325     

16.4    

Spike tooth

centrifugal     

2

12

2

50       

5 x 5

12-28

450-650

35/26.25

Axial type 

 3400

1140

2190

495

1460

13.7

Peg type

centrifugal

3

12.5

3

50

5.1 x 5.1

15-28  

1200-2800

  35/26.25

Uses:

It is used for threshing of maize cobs.

Cost of Machine : Rs.60,000/-