SU516373A1 - Threshing Threshing Device - Google Patents

Description

one

The invention relates to the field of agricultural machinery engineering, the advantage of shocks to threshing devices, combine harvesters.

A device for self-cleaning of a deck is known, comprising cantilever rods installed in the openings of the transverse bars, the ends of which protrude above the surface of the bars of the deck.

However, such a device is ineffective, since the pressure of the grain mass in the threshing, the device is transmitted mainly to deck strips, a. not on its rods; therefore, oscillations of cantilever rods are insignificant and self-cleaning, as a rule, does not occur.

In order to prevent the deck surface from sticking in the sidewalls of the frame of the proposed deck, additional strips are mounted with the possibility of radial movement. Additional slats are invited to the main., Rigidly fixed in the sidewalls of the frame, slats and secured to

rods through one in width and in shakhmatny order along the length of the deck.

FIG. 1 shows the working surface of the deck, top view; in fig. 2 is a section along A-A in FIG. one; in fig. 3 shows a section along B.-B in FIG. 1 j in FIG. 4-section bb in FIG 3; in fig. 5 - on G-Y on figs, 3.

The deck consists of a transverse stratum w 1, an additional slider 2 and a fixed main 3, longitudinal bars 4. The side walls of the 5 deck, the transverse plates 1 and the fixed slats 3 form a rigid welded structure.

In the sidewalls in front of each fixed bar grooves are made in which movable plates are installed.

In the movable 2 and fixed 3 planks, cylindrical holes along the diameter of the rods 4 alternate through one with countersunk holes. In the latter, the initial diameter is larger than the diameter of the longitudinal bars 4, and the countersinking angle is greater than the frictional angle of the crop residues and soil particles on the metal surface.

ness as a result of this alternation of the holes, the longitudinal rods through one of the widths of the deck are fixed in the radial direction in the cylindrical holes of the odd stationary bars, and the rest in the corresponding holes of the even bars. Each movable bar is fixed by cylindrical holes on those longitudinal bars that are not fixed by the fixed bar adjacent to it.

During operation of the threshing apparatus, the scourge compresses the grain mass and at the moment of its passage over the movable bar, the latter moves in the slots of the sidewall of the deck radially from the center under the action of the compression forces of the grain mass. At the same time, she carries along the bars on which she was fixed. The latter bend between the fixed bars in which they are fixed. After the passage of the scourge, the bars, under the action of elastic forces, return D to a perfect position, moving the slats away. When the next scourge passes, the process repeats. As a result, the bars and bars of the deck oscillate with a frequency depending on the frequency of rotation of the drum and the number of beats. As a result, the soil and plant mass does not adhere to the deck elements.

Claims (1)

Invention Formula The deck of the threshing device, containing a frame with transverse strips rigidly fixed in its sides and longitudinal rods passing through the holes in them, is characterized in that, in order to prevent the working surface of the deck from sticking, grooves are made in the side frames of the frame; additional transverse strips adjacent to the main ones and fastened to rods through one alternating, their attachment points to rods in a checkerboard pattern. cva U Ucc vcj t Fig FIG. five