SU1521357A1 - Thrashing and separating device - Google Patents

Abstract

This invention relates to threshing and separating devices. The purpose of the invention is to improve the separation of grain and increase the degree of threshing. The device comprises a drum 1 with teeth 2 and a concave 3 with an arcuate surface 5, on which the scallops 6 are arranged in chessboard order. Each comb 6 is made in the form of a rod bent at an acute angle with the front 7 and rear 8 sides. The front 7 and rear 8 sides of all the scallops 6 form identical angles with tangents to the surface 5 at the points of attachment of their front ends. The ends of the back side 8 of the previous scallop and the front side 7 of the subsequent scallop are placed in one row. The threshing mass deviates in the cavity of the scallops 6 between the sides 7 and 8, is partially compressed there and brakes in the raised position, thereby increasing the combing effect of the teeth 2 on the mass. 2 Il.

Description

The invention relates to the field of agricultural engineering, in particular, to threshing-selarising devices.

The purpose of the invention is to improve the separation of grain and increase the degree of threshing.

FIG. 1 shows the proposed molodilno-separairush, its device, a longitudinal section; in fig. 2 is the same cross section, section A-A in FIG. one.

The threshing and separating device contains a drum 1 with teeth 2 and under-, drum 3, made in the form of a rigid frame 4 with an arcuate surface 5 and mounted on it with rows of uiaxMaTHOM crests 6. Tooth 2 of the drum 1 is placed between the combs 6. Each comb 6 is made in the form of a sharply bent at an acute angle with the front 7 and the rear 8 side. The front side 7 of each comb 6 is located at an acute angle to the tangent surface 5 at the point of attachment of the front end of the said front side 7. The rear side 8 of the previous comb is set at an acute angle to the surface 5 equal to the angle between the front side 7 of the subsequent comb and tangent to the surface 5 at the point of attachment of the KOiHia of the above-mentioned front side 7 after the first | The rear side of the 8th side of the comb and the front side of the 7th consecutive ridge are placed in the same cross section with respect to the drum 3 of the bottom.

The device works in the following way.

The wettable mass is captured by 2N teeth. shuffles over the front surface of the 7n rio inside0

five

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five

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five

The surface of the back sides 8 of the scallops 6. At the same time, the mass is deflected in the cavity of the scallops 6 between the sides 7 and 8, is partially compressed there and brakes in the raised position, thereby increasing the combing effect of the teeth 2 on the mass. In addition, the mass makes a wave-like movement, due to the staggered arrangement of scallops 6.

Claims (1)

Invention Formula A threshing-separating device containing a concave, made in the form of a rigid frame with an arcuate surface and with combs with front and rear sides mounted on it in staggered order and with the front sides positioned under the sharp yoke to the tangential surface of the sub-carriages at the points of attachment of the front the ends of the front sides, and the drum with the teeth placed between the concave scallops, characterized in that, in order to improve the separation of the grain and increase the degree of threshing, the comb scallop In the form of a bar bent at an acute angle, the back side of the previous comb is set at an acute angle to the surface of the concave, equal to the angle between the front side of the next comb and the tangent to the surface of the concave, at the point of attachment of the end of the named front side of the next comb, and the ends of the back side of the previous one the scallop and the front side of the subsequent scallop are placed in the same transverse relative to the concave, d du.