SU1205826A1 - Counter-cutting part of farm material mincer - Google Patents

Description

2. The piercing part according to claim 1, characterized in that the middle element is made of nylon and the thickness is within

1205826

8 (1-10), and the thickness of the upper element does not exceed 38, where S is the minimum gap between the extreme elements and the shredder knife.

I

The invention relates to agricultural machinery, in particular to devices for grinding agricultural materials.

The purpose of the invention is to reduce the laboriousness of adjusting the gap between the shearing plate and the chopping knife and improving the quality of the grinding.

The drawing schematically shows a grinder of agricultural materials, side view.

The cutting part of the shredder contains a bracket 1, on which is fixed, for example, with a screw 2, a composite restraining plate consisting of three elements: the uppermost 3 (first along the shredder's knife), the middle 4 and the lowermost 5. The plate is fastened with screws 6. For moving the middle element 4 relative to the extreme in the direction of the knife, the holes for the screws 2 and 6 in it are made in the form of a slot. Between the extreme elements and the knife 7 of the shredder, there is a minimum but sufficient clearance for safe operation.

The grinder works as follows.

Element 4 moves close to knife 7 and as the knives are rotated on

Editor V. Petrash

Compiled by L. Pankov

Tehred Z.Kastelevich Proofreader S. Shekmar

Order 8563/2 Circulation 679 Subscription

VNII1Sh State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, st. Project, 4

idle under the action of vibration and other factors, cutting off part of element 4, in which damage to the knife does not occur, due to the fact that the hardness of element 4 is significantly lower than the hardness of the knife. Element 4 can be made of nylon or other material with similar characteristics ..

0 A gap equal to or close to zero is established between element 4 and the moving knife 7, while the console of the layer to be crushed is reduced, since the middle element gives the material the necessary support, plays the role of a gap filler, and the extreme elements provide the necessary rigidity and strength of the plate,

0 In order for element 4 to be cut with a chopper knife and provide the necessary rigidity of the support to the layer being cut, it must be made of a certain thickness, which depends on the size of the gap between the outermost elements and the chopper knife and is in the range 5 (1-10), where S is the minimum the gap between the extreme elements and the knife.

The thickness of the element 3 also depends on the specified gap and should not exceed 3S, since with increasing it the role of the element 4 decreases.

five

Claims (2)

1. THE ANTI-PROTECTIVE PART OF THE GRINDER OF AGRICULTURAL MATERIALS, comprising a support bracket with a fixed counter plate, characterized in that, in order to reduce the complexity of adjusting the gap between the counter plate and the knife of the grinder, to improve the quality of grinding, the opposing plate is made of three pieces, the composite plate is made of the middle of which has the ability to shift in the direction of the knife relative to the extreme, by the size of the gap between the extreme elements and the knife and made of a material with a hardness lower than the hardness of the edge elements and the knife. 2. The counter-cutting part according to claim 1, characterized in that the middle element is made of nylon and has a thickness within S (1-10) ^ °, and the thickness of the upper element does not exceed 38, where S is the minimum gap between the extreme elements and the chopper blade.