SU1475531A1 - Pass of windrower for harvesting high-stem crops - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery. The purpose of the invention is to increase the reliability of operation by preventing foreign objects from entering the channel. The reaper stream for cleaning tall stem crops contains cutting rotors 1 with blade disks 3 installed in supports, transporting chains 4, forming a channel for the passage of plants. The channel at the bottom has a bottom 6, and on the side, walls 7. At the beginning of the bottom 6, the pins 8 are mounted. The front edge of the bottom 6 is displaced relative to the discs 3, forming a hole. The hole has dimensions in width and length exceeding the distance between the supports of the rotors 1 and from the upper disk 3 to the chains 4. If during operation of the header, a foreign object falls on the disks 3 that is smaller than the hole size, then these disks and plants stems moves to the hole and falls to the ground under the influence of the force of gravity. Foreign objects thrown through the holes are retained by pins 8. 1 Cp f-ly, 3 ill.

Description

Fig 1

11 shaving refers to agricultural and. The machine-building industry, in particular to / rollers for harvesting tall stem crops, for example, maize.

The purpose of the invention is to increase operational reliability by preventing foreign objects from entering the channel.

FIG. 1 shows schematically the proposed reaper stream, top view; in fig. 2 - the same, front view; in fig. 3 shows section A-A in FIG. 2

The reaper stream contains cutting rotors 1 with 2 blade disks 3 installed in supports, transporting chains 4, forming a channel 5 for the passage of plants, having bottom bottom 6, and side walls 7. At the beginning of bottom 6, removable pins 8 are installed. the header edge of the bottom 6 is offset relative to the outer contours of the blade disks 3, forming a hole bounded by the walls 7 of the channel 5, the front edge of the bottom 6 and the blade disks 3, and the distance A between the side walls 7 of the channel 5 and the distance B between the knife blades 3 and the front edge more than 6 minutes bottom of each of the distances C and D between the supports 2 of knife discs 3 on a horizontal plane and between the conveying chains 4 and the knife discs 3 in a vertical plane. The pins 8 can be installed either vertically or tilted in the old knife discs 3, and the distance between the pins 8 and from the pins 8 to the side walls 7 is greater than the maximum diameter of the stems of the harvested crop at the cutting height. The slope of the pins 8 is due to the installation of the initial portion of the bottom 6 at an angle of 0 ° C 45 ° C. In this case, the cutting edge of the blade discs is located at or above the front edge of the bottom 6, but below the horizontal section of the latter.

Stream reaper works as follows.

Cutting blades of the 3 cutting rotors 1 of the corn stalk or another tall stem crop are picked up by the transport chains 4 and moved through channel 5 to the auger (not shown) of the header or directly to the feeder of the combine (not shown). If in process0

All of the work on the knife discs 3 hits a stone or other foreign object whose dimensions are smaller than the distance C between the supports 2 of the cutting rotors 1 in the horizontal plane and the distance between the knife discs 3 and the transport chains 4 in the vertical planar rotating knife discs 3 and the bottom plates. the stems of cut and captured by the transport chains of 4 plants move to the hole between the blade discs 3 and the front edge of the bottom 6 of channel 5, where it falls to the ground under the force of gravity. If the stone moves through the hole under the centrifugal force of the rotating disks 3, the pins 8 installed at the beginning of the bottom prevent it from entering the channel 5. Because the distance between the pins 8 and from the pin 8 to the side wall 7 is greater than the maximum diameter the stems of the crop to be harvested at the cut height, the plant stems are freely transported by chains 4 through channel 5.

Claims (2)

1. A handheaded header for harvesting tall stem crops, containing a pair of cutting rotors with knife discs installed in supports with overlap relative to each other, transporting chains, forming a channel for plant passage, having a bottom at the bottom, and on the sides the purpose of improving reliability in operation is to prevent foreign objects from entering the channel, the edge of the channel bottom, which is forward in the course of movement of the header, is offset relative to the outer contours of the blade disks with the formation of a hole with dimensions e and width greater than the distance between the supports of the cutting rotor and the upper knife disc to the transporting chains. 2. The hand cutter according to claim 1, characterized in that, in order to prevent centrifugal force from rotating knives of foreign objects through the centrifugal force, through the hole in the channel, it is equipped with the pins installed at the beginning of the bottom and across its width. p mi 0 five 0 FIG. 2 3  3