Paddy Thresher
The proposed innovation is a hybrid product of two well -known concepts i.e. threshing by beating and retaining the whole stalk and is pollution free and environment friendly technology.The concept of rubbing the crop in between threshing drum and concave and obtaining the whole stalk of the paddy while threshing is in use1 . US patent nos. 4185642, 3963032, 4174718, 4821744 and 4489735 describe the threshing mechanism for paddy, wheat and similar crops. In all these mechanisms, threshing of the crop is achieved by rubbing of the ear-heads in between the threshing drum and the concave. No whole stalk of the paddy is retained in these threshers and is blown out in the form of chopped material called bhusa (husk).However, the proposed innovation is different from the threshing concept, here threshing is achieved by beating action, which is mechanized by using tractor power through PTO.It consists of self-made frame, feeding mechanism, threshing mechanism, and cleaning mechanism. A pair of pneumatic wheels is provided for transportation purpose. In feeding mechanism tray type hoppers are provided to keep the paddy bunches. Paddy bunches are moved forward through conveyer belts on either sides of the thresher.The upper and lower conveyer belts are made of thick cotton threads and rotate in opposite direction. The conveyer belts pass the paddy bunch for 1.5 m length during which only ear head portion gets hreshed. In this thresher, the paddy is threshed by beating. Four beaters are provided on the central shaft.To remove the light foreign material and straw from the grain, two fans (self-made) are provided. The heavy foreign material and stalks of the paddy, which fall with the grains, are thrown out with the help of vibrating elevator, which runs beneath the fans. These fans and the elevator get the drive from PTO of the tractor.To collect the clean grain, two grain outlets on either side are provided. Three labours are required to operate this thresher apart from the tractor power (it can run even by 2 HP motor).Since this thresher does not produce husk, it is environment friendly and region specific technology. The cost of the thresher is estimated to be around Rs. 55,000.Using this machine, whole paddy stalk is obtained instead of chopped pieces, which are the main source of fodder for animals in the area. In whole stalk the nutritional value is conserved, it is easy to handle and very good raw material for paper industry also. The stalks of the paddy yield the income of about Rs. 4000/- per ha.His son is now making efforts made to double the capacity per unit time as compared to the conventional threshers.
Link: In feeding mechanism tray type hoppers are provided to keep the paddy bunches. Paddy bunches are moved forward through conveyer belts on either sides of the thresher.The upper and lower conveyer belts are made of thick cotton threads and rotate in opposite direction. The conveyer belts pass the paddy bunch for 1.5 m length during which only ear head portion gets hreshed. In this thresher, the paddy is threshed by beating. Four beaters are provided on the central shaft.To remove the light foreign material and straw from the grain, two fans (self-made) are provided. The heavy foreign material and stalks of the paddy, which fall with the grains, are thrown out with the help of vibrating elevator, which runs beneath the fans. These fans and the elevator get the drive from PTO of the tractor.To collect the clean grain, two grain outlets on either side are provided. Three labours are required to operate this thresher apart from the tractor power (it can run even by 2 HP motor).
Manufacturing Capacity: Yes
Problem Scale: Grave in Rural Area
Blog Link 2:
Blog Link 3: