spike tooth type thresher (Fig. 88.9%. $.' 3 0 obj The tip of the spike should rotate with a peripheral speed of 20-25 m/s. �jQR����J�T���Q��*�'�W|�W>��1���r�|��&�b��>=�����/- It was observed that threshing sorghum at spike spacing of 50 mm, drum diameter of 400 mm and drum peripheral speed 12 m s-1produced the highest threshing efficiency of 96%. The threshing clearance spreads from the root of threshing tooth to the top of concave grate (Fu et al., 2018). �oa �c�w��`НeL�VG r�2��lpI-�*��a0�ϓe�`R�1Wѹz�#��iH@S���P� �4����@F�&�HZ~L�Ns4s��8HKm�0[�޴F�q�P;|�����n�r�Wwa�Lf�1d�I#I� )P��t�ʊe�Ľ�d�[g�K�U�f_���{�� The department of Farm Power & Machinery, PAU Ludhiana has developed two types of Maize dehusker cum threshers namely spike tooth type (modified version of wheat thresher) and axial flow type (modified version of sunflower thresher) for threshing the maize along with the husk. There are over 13,760,000 records available in CAB Direct | Last updated on February 17, 2021. It consists of spike tooth cylinder, aspirator type blower and sieve shaker. Abstract The goal of regular modification of threshing machine is to increase soybean processing efficiency. 4 0 obj Spike tooth type cylinder Spikes or pegs mounted on the periphery of a drum in staggered pattern. 2 0 obj ",#(7),01444'9=82. The spike tooth cylinder type threshers are more acceptable than others due to their compact design, less energy consumption and less percentage of grain damage as mentioned in Table 1. 4LZ-2 2018 wheat cutting machines combine harevester with short-rasp-bar tooth threshing cylinder. The thresher is an axial flow type and it consists of feed hopper, spike-tooth cylinder, concave, oscillating sieves and blower. US $720.00-$800.00 / Piece. /round bars or flat iron items square measure welded or barred. Machine Crop Parameters’ Model of Spike - Tooth Thresher for Soybean. Like most websites we use cookies. (1998) developed a threshing machine for sunflower seeds. If you would like to, you can learn more about the cookies we use. The thresher is an axial flow type and consists of feed hopper, spike-tooth cylinder, concave, oscillating sieves and blower. • Now days, in most of threshers, round peg with adjustable length are used. Threshing cylinder Table 1: Recommended specifications for threshing cylinder Calculation: 1. In this thresher, feeding is done radially. The concave can be grated or non-grated. Extensive online help - available wherever you are in CAB Direct. 1/6. You can now claim your publications on CAB Direct with your ORCID iD! Threshing speed is kept at 620 rpm. (1) (2) i) Frame ii) Shaft iii) Concave iv) Threshing cylinder cover v) Blower vi) Sieve vii) Fly wheel viii) Pulley ix) Brackets x) Transport wheel xi) Spike xii) Threshing cylinder I I J i. : 1 r i i MATERIAL (3) Mild Steel Cast iron Cast iron Mild steel 4) has corrugations that generally run in opposite directions on alternate bars and rub the crop against the concaves. THRESHING ANALYSIS Spike tooth type cylinder Figure 2.1 In this kind of separation drum, there's a hollow cylinder, created out of MS flat. Threshing Elements, Tines & Spike Teeth Threshing elements and tines come with hardware included. (2004) reported that while threshing soyabean, the rasp bar cylinder gave the lowest split loss of 0.68% as against 1.64% for spike tooth … 5 0 obj The thresher has also the cleaning mechanism and bagging attachments. means you agree to our use of cookies. ���� JFIF � � �� C 5.0 (2) "Good service" "Fast shipping" Contact Supplier. The crop is fed from the feeding tray into the threshing cylinder. The present study was aimed at optimizing important operational parameters of a modified spike tooth type thresher and crop parameters influencing threshing of pigeonpea. Spikes may be provided in concave. The summary statistics of the machine output showed that concave clearance had percentage unthreshed soybean of 16.98%, percentage mechanically damaged seed of 8.625%, blown seed of 23.403kg and high seed loss of 44.241kg. spike tooth will also put small cob and pieces of stalk in the grain tank. 5 hp size. 1 0 obj endobj The pegs are arranged in 10 rows on the cylinder. <>/Font<>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Addo et al. Fig: 2. It is used for dehusking and shelling of maize cobs simultaneously. The diameter and length of threshing drum are 500 and 600 mm, respectively. <> %���� ����}�=�����V����� �}�ށ&�tqF��l �$uY�$�#�ݞ$.�qp����pu �����i >'y�z��1*�g�{0�lף4�]�� stream The output capacity of whole crop maize thresher is 210 kg/h. Rasp-bar and angle-bar cylinders are more common than spike-tooth cylinders. Total 92 spikes were fitted in 8 rows. Continuing to use www.cabdirect.org 4A4013/4A4012 OEM threshing cylinder with spike tooth. Diameter of cylinder Dc=(Vc×60)/πNc = 25 ×60/π×1000 =0.477m≈ 500 mm Particulars Specification Selected Reference Type of threshing cylinder Spike tooth or Wire-loop Spike tooth CIAE Data book,2004 The main components of the thresher were main frame, threshing cylinder, concave, cylinder casing, Find out more about this exciting new development, Using our new visualization tools you can, Using our new highlighting and annotation tool you can, remove selected records that are not saved in My CABI, sign you out of your This means the concave may have openings through which the grain can pass or it may be closed. Find this any many more Threshing on Fastline.com. Total 92 spikes were fitted in 8 rows. 2020; 8(3):97-104. doi: 10.12691/wjar-8-3-5. Unthreshed soybeans, CGX14x1448 were used to evaluate the performance of a modified spike tooth thresher fabricated at the Workshop. endobj The utility model relates to a taper-shaped composite spike-tooth type axial flow threshing cylinder which can be used for threshing crops, such as wheat, soy beans, paddy rice, etc. condition. The quality of bhusa better compared to hammer mill. The rasp-bar cylinder (fig. If grated, the separation of the grain and chaff occurs at this stage. Two top covers, three concaves, three sieves and variable cylinder speeds (7-21 m/s) are provided for threshing different crops. Anil et al. Concave is prepared by placing 8 mm square bars at a spacing of 18 mm. endobj The threshing cylinder is of spike tooth type and the top cover has louvers to guide the crop axially. The pegs are arranged in 10 rows on the cylinder. Threshing drum 21. Over to its entire edge, variety of spikes/pegs of sq. 3. Threshing cylinders in combines may be classified as rasp-bar, anglebar, and spike-tooth types. To minimize the risks involved, spike tooth cylinders were introduced. THRESHER, SPIKE TOOTH TYPE ( Cfause 3.1 ) SL NAME OF PART No. The summary statistics of the machine output showed that concave clearance had percentage unthreshed soybean of 16.98%, percentage mechanically damaged seed of 8.625%, blown seed of 23.403kg and high seed loss of 44.241kg. We put filler bars in and new teeth but, it still leaves corn on the cob especially when the corn is above 16 to 17% moisture. This machine system surely decrease the accidents count. Therefore, same thresher can not be used for threshing other crops due to design deficiency. 1. The thresher is designed for 5.5 kW power with spike tooth cylinder having 6-7 bolts per row on periphery. x����n�0E������cH�@���4M� i�"��Ցm�������KJrů�;Q�{�%>����a|?vs����Fc\f� CAB Direct Among design and operational factors, cylinder speed is the most important factor responsible for grain damage The grains get separated due to the rubbing action of spikes against the cylinder casing. <> Used with spike tooth cylinder and concave for improved performance in beans, rice and grasses for many models of John Deere combines. impacting threshing unit is the spike teeth that were bolted on the cylinder and the concave. and Adewumi I.O. It consists of spike tooth cylinder, aspirator type blower and sieve shaker. In most of threshers, spherical peg with adjustable length square measure used. About 80% of the grain is separated at this stage. This is to ensure that we give you the best experience possible. stream Ilori T.A., Dauda T.O. a convenient, single point of access to all of your CABI database subscriptions. Spike teeth include hardware as well. The diameter and length of threshing drum are 500 and 600 mm, respectively. The spike tooth threshers available in the market have cylinder and blower on the same shaft. This machine is used for wheat threshing on large scale in India. The cylinder with axis-flowing spike tooth has been utilized in most of the threshing unit of the conventional whole-feed combine harvester, which has … Ti��5�iΰW�� The thresher consisted of a 562 mm long threshing cylinder of 362 … The power required for threshing is to overcome the contact force between stalks and grain ears with the threshing teeth. The mentioned The threshing cylinder is fitted with spikes/bars/hammers or wire-loops around its periphery according to the type of thresher. <> endstream Crop is fed through chute in small thresher and through hopper type bulk feeding system in large thresher. The cylinder is enclosed with the concave made of wire mesh with sieve opening of 80 x 25 mm size. <>>> In the end of the cylinder there is a thrower for the paddy stalks. The cylinder is enclosed with the concave made of wire mesh with sieve opening of 80 x 25 mm size. Order) CN Ningbo Combine Machinery Co., Ltd. 16 YRS. Minimum mechanical grain damage of 3% was obtained using drum diameter 400 mm, spike spacing 100 mm and drum peripheral speed 8 m s-1. We are running a F2 with a spike. better threshing unit for a sunflower thresher, the study showed that the peg type cylinder with speed range of (400 – 500 rpm) and concave clearance range of (2.5 – 4.4 cm) may be used for developing a threshing unit for a sunflower thresher. On the thresing drum, tooth spikes are fixed and cyclinder casing corrugations are made by welding rods. Cylinder, Spike Tooth. 4a4006 (628050.2)combine Harvester Spike Tooth For Aftermarket Threshing Cylinder , Find Complete Details about 4a4006 (628050.2)combine Harvester Spike Tooth For Aftermarket Threshing Cylinder,Combine Harvester Spike Tooth,Aftermarket Threshing Cylinder Spike Tooth,Combine Harvester Spike Tooth 628050.2 from Agriculture Machinery Parts Supplier … CAB Direct is the most thorough and extensive source of reference in the applied life sciences, session so others can sign in. The overall dimensions of thresher were 1765 x 1065 x 1570 mm. %PDF-1.5 1) powered with an electric motor was selected and modified for use on pigeonpea. Results demonstrated that the threshing and separation capacity of the knife bar TFC unit was stronger than the other threshing teeth. the peripheral speed of the threshing cylinder, cylinder concave clearance, and number of rows of concave teeth used with a spike tooth cylinder and the varieties of rice. Unthreshed soybeans, CGX14x1448 were used to evaluate the performance of a modified spike tooth thresher fabricated at the Workshop. The spike tooth thresher was found to endobj Two top covers, three concaves, three sieves and variable cylinder speeds (7-21 m/s) are provided for threshing different crops. Threshing process 22. The rasp bar will do a far better job of getting the corn off the cob than the spike tooth. �M�?�d�w�uY�+m/�Y2�ѓ:�jN�~�S�Z�)~O�k�i��*�I�? It also consists of angle bar type cylinder as well as spike tooth-type cylinder and concaves. The cylinder can be rasp bar or spike tooth. Threshing and separation equations for five types of threshing teeth (knife bar, trapezoidal tooth, spike tooth, rasp bar, and rectangular bar), were obtained using probability theory. The optimized value of 500 rpm of threshing cylinder speed resulted in time saving, reduction in percentage seed loss and percentage mechanical damage. The grain is rubbed or beated to seperate from the stalk without cutting the stalks and damaging the grains between spike tooth or rasp bar or angle bar type cylinder and perforated concave type basket 20. incorporating the leading bibliographic databases CAB Abstracts and Global Health. CAB Direct provides World Journal of Agricultural Research. View of Haramba thresher SPIKE TOOTH TYPE CYLINDER • In this type of threshing drum, there is a hollow cylinder, made out of MS flat. Over to its entire periphery, a number of spikes/pegs of square /round bars or flat iron pieces are welded or bolted. 1 Piece (Min.
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