Education of the republic of uzbekistan tashkent state technical university named after islam karimov

№3/2021 year. 
Technical science and innovation
226 
If harvesting is carried out after precipitation has started, it is set to the "wet weaving 
pattern" so that the enriched parts are not wrapped in fibre: baffle 7a, net rod 6, bottom brush are 
removed, the cotton removed from the small saw drums is thrown onto auger 8a. 
When the web is operated with the "enrichment" setting at high humidity (over 25-30%), 
the sawing surface of the drums is periodically wrapped with wet fibre, such concentrator is 
mounted on the "cobbler" in diagram 3. It is enough to turn router 1 to position a. In this diagram 
the top saw and brush drums are lifted to maximum and the large saw is rotated in the opposite 
direction.In this case, except for the large toothed drum, the other 6 drums are not involved in the 
process [7]. 
To eliminate the situation of a wet saw blade getting into the top of the drum, the mechanical 
"concentrator" must be opened and the top of the drums cleaned with a special cleaner, which, in 
turn, requires a little extra time. . 
Based on the above disadvantages, let's change the crushing machine to a "concentrator". 
In our new design (Fig. 3) we have removed the remaining drums in addition to the large toothed 
pavian shown. 
The drums removed are: 
1. the large arralee drum - 1 piece. 
2. Small saw drum - 3 pcs. 
3. Brush drum - 2 pcs. 
Figure 4.Sawed drum 
1 - rotating star, 2 - bearing housing, 3 - flange,4 - saw body, 5 - middle flange, 6 - stem screw. 
Figure 5. Brush drum 
 
1- rotating star, 2- bearing housing, 3- flange, 4- brush, 5- guide. 

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Mechanical Engineering
227 
Figure 6. Hanging brush 
1-brush holder, 2- brush, 3- mounting bolts. 
Non-ferrous metals were used in the manufacture of these drums. The metal consumption after 
removal from the drums is reduced. The previous 'concentrator' weighed 345kg, the current 
'concentrator' weighs 180kg. The total weight of the Cossack machine has been reduced to 
165kg. 
Reel price table 
№ 
Cipher 
Name 
Quantity 
Price sum 
1 
SKF 35.090 SB