JPS6178320A - Threshing and classifying apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a threshing and sorting device, which can be used in a threshing section of a combine harvester, a harvester, etc.

Problems to be Solved by the Invention During threshing and sorting, when a large amount of straw waste and ear pieces are generated in the threshing chamber, the amount of straw waste falling from the stroke rack at the end of the sorting section into the second receiving gutter. This can easily clog the second grain lifting machine and reduce the threshing process.

Means for Solving the Problem This invention provides a threshing room (1) for threshing while transporting the husk.
A straw waste discharge port (a sorting shelf 0 at the lower side of the threshing room (1) that receives and shakes the straw waste leaking from the threshing net (3) installed on the lower circumference of the threshing room (1) and sorts it while transporting it) Connected to the end of this sorting shelf 0 is a straw waste discharge port (a front straw rack (5) that receives and shakes and sorts the straw waste discharged from the straw rack, and is located above the second receiving gutter 0. and the front straw rack (5
) The rear straw rack (7) that receives and shakes the waste that falls from the terminal end of the straw rack (7) is positioned at the front upper part and looks into the sorting air passage (8), and from this it goes to the rear lower part. The threshing sorting device is configured in an inverted C-shape with a forward tilting part (C) which is tilted and a rearward tilting part (4) which is tilted further rearward.

Effect of the invention Threshed grains threshed in the threshing room (() while transporting the culm are leaked together with some straw waste etc. by the threshing net (3) and fall onto the sorting shelf (1) below. On the other hand, straw waste including grains and ear cuts discharged from the straw waste outlet (section 21) are sorted through the front straw rack (21).
5) -L is discharged, rough sorting is performed by shaking motion, grains and some grains with branches and stalks leak downwards, and are transferred to the terminal part, and straw waste etc. also fall downwards. This is then transferred to the rear straw rack (7) and the rocking selection H1l tr is repeated again. The sorted grains and grains attached to branches are air-selected by the sorting wind from the sorting air passage (8), and relatively heavy grains such as shell grains leak into the second receiving gutter 0 on the lower side and become straw waste, etc. is blown towards the backward tilting part (c),
Further, the straw waste etc. received on this backward inclined part @ are also shaken and sorted, the grains etc. leak into the second receiving trough (6)-J-, and the straw waste is discharged from the rear end part.

Effects of the Invention As described above, the straw waste, etc. that falls from the front straw rack (5) is oscillatedly transferred to the rear lower part by the forward tilted part (c) of the rear straw rack (7), and is sorted at the front bottom. Wind path (8
) to receive the sorting wind that blows the straw waste.
The scattering of straw waste to the side is good, the separation of the second straw is good, and the total length of the front and rear straw racks (5) can be made longer, so that the straw waste is not thrown into the second catch gutter). Falling can be reduced.

Examples In the illustrated example, (9) is a foot chain,
The husk is supplied from the supply port (G) to the threshing chamber (1) by this foot chain (9), and is threshed by the rotationally driven handling cylinder.
21 to discharge it outside the machine.

A threshing net (3) is stretched below the handling barrel OO. At the end of the threshing net (3), there is provided a straw waste discharger [1 (z) for discharging straw waste, ear pieces, etc. transferred in the threshing room (1).

A swinging sorting device is installed at the bottom of the threshing room.
This oscillating sorting device ■ has a grain flow lower shelf 0, a sorting shelf (4),
Front straw rack (5), rear straw rack (7)
A pair of left and right swing case side plates are arranged so that the grain guide shelf 09, transfer tank Qe, sorting net 071, etc. can be moved back and forth with vertical movement relative to the machine frame by the action of an eccentric cam and a swing arm. It is configured by being attached to @ (G). The grain flow lower shelf is located below the starting end of the threshing net (3) and is provided facing diagonally downward, and a sorting shelf (4) is connected to the terminal edge, and this sorting shelf (4) is slightly inclined. It is formed by a corrugated plate with a sawtooth cross section toward the top, and a number of through holes are provided in the concave bottom of the plate. The front straw rack (5) has its starting end below the straw waste discharge port facing the lower end of the sorting shelf (4), and is oriented slightly diagonally upward and almost parallel to the sorting shelf (4). The front straw rack (5) has a bottom formed of a corrugated plate with a sawtooth cross section, the starting end is bottomed, and the terminal end is provided with a number of through holes in its concave bottom. The grain guide shelf υ is provided with its starting end facing below the terminal end of the grain flow lower shelf 0 and directed diagonally downward.The transfer tank OO connects its starting end to the terminal end of the grain guide shelf υ. It is almost parallel to the axial direction of the handling cylinder 0O-5=, and the terminal end is located closest to one side of the helix 01, and the starting end of the sorting net 071 is connected to this terminal end, and is oriented slightly diagonally in the - direction. The rear straw rack (7) is located above the second receiving gutter 0, and the terminal end is located near the terminal end of the first receiving gutter (6). A forward tilting part (C) is located in a part of the front part of the front straw rack (5) and is inclined toward the rear lower part of the selection air passage (8). and a rearwardly inclined part (c) which is inclined further rearward and upper than this forwardly inclined part (c) to form an inverted V-shape,
The rearwardly inclined portion @terminal end is configured to communicate with the outside of the machine and open, and these members are configured to swing together with the swinging sorting device (2).

Below the oscillating sorting device 0, there is a winnowing machine (2) that blows a sorting air from the start end to the end of the oscillating sorting device (2), and a first funnel υ that transports the sorted grains laterally. The first receiving gutter (4), furthermore, the second receiving gutter (6) has a second helical @ that receives the second items falling from the terminal part of the sorting net Q71 and the rear straw rack (7) and transfers them laterally. Q3 is a dust removal cross-flow fan that sucks straw waste and discharges it outside the machine, and (to) is the second reduction thrower.
It is.

In the threshing and sorting device configured as shown below, the grains threshed in the threshing room (1) are leaked through the threshing net (■) to the grain flow down shelf 0 and the sorting shelf (■) of the lower swinging sorting device (■). The grains fall upward and are transferred and sorted by the shaking action, and fall onto the grain guide shelf υ and transfer column O0 below the through hole.

In addition, ears of ears containing grains that do not fall from the threshing net (3), straw waste, etc. are transferred inside the threshing room 0) and fall onto the front straw rack (etc.) below the straw waste outlet ■. The sorting shelf (
b) The grains, straw waste, etc. that did not fall are joined together and transferred and sorted while loosening the straw waste etc. by the shaking motion, and the grains are moved downward from the through hole at the end of the front straw rack (5). The straw waste, etc. that does not fall is further transferred to the rear tilting part (C) of the rear straw rack (7), which is tilted downward from the tip of the terminal end to the rear upper part of the rear straw rack (7). The grains are dropped onto the section (4), and together with the grains that fall from the through-hole section, the straw waste is again subjected to the shaking action, transferred and sorted, and the sorted straw waste is discharged from the tip section to the outside of the machine.

Furthermore, the grain flow lower shelf 0, the sorting shelf (4), the front straw rack (5), and the rear straw rack (7), which are connected in a substantially planar manner, are equipped with a cross-flow fan Q3 for dust removal. Due to the suction power, light straw, dust, etc. are sucked up and discharged outside the machine.

In addition, grains and straw waste, etc. that fall from the through holes of the front straw rack (5) and the tip of the terminal end are removed by the sorting air of the sorting air passage (8) by the Karawin QD and the cross-flow fan Q3 for dust removal. Rear straw rack (7) that is selected based on suction power
The sorted grains are transferred to the second receiving gutter [F
]).

Also, the grains that have fallen into the grain guide column 051 and the transfer shelf 00-4- are moved toward the tip by the rocking motion, and the grains are moved toward the tip of the sorting net 0? )
The grains are sorted together with the sorting wind of the sorting air passage by the Karawine, and the sorted grains are transferred to the first receiving gutter (4) on the F side.
). Also, objects that do not fall from the sorting net 071 flow into the second receiving gutter 0 from the tip of the sorting net 07),
The grains are returned to the threshing room by the second reducing thrower (c) together with the second grains that have flowed in from the rear straw rack (7) and are reprocessed and sorted.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side sectional view, FIG. 2 is a partially enlarged side sectional view, and FIG. 3 is a partially enlarged plan view. In the figure, code (1) is the threshing room, (ri is the straw waste outlet, ($
is a threshing net, (4) is a sorting rack, and c)) is a front straw rack. ■) indicates the second gutter, ■ indicates the rear stroke rack, ■ indicates the sorting air passage, the mortar indicates the forward tilted part, and (c) indicates the rear tilted part.

Claims (1)

[Claims] At the lower side of the straw waste discharge port (2) of the threshing room (1), which threshes while transporting the husks, the threshing grains leaking from the threshing net (3) installed on the lower circumference of the threshing room (1) is collected. A sorting shelf (4) that sorts the straw waste while swinging and transferring it, and a front straw connected to the end of the sorting shelf (4) that receives and swings the straw waste discharged from the straw waste outlet (2). A rack (5) is provided, located above the second gutter (6), and the front straw rack (
The rear straw rack (7) that receives and shakes the straw waste falling from the terminal end of the straw rack (7) is positioned with its starting end at the front upper part and looks into the sorting air passage (8). The threshing sorting device is formed in an inverted C-shape by a forward tilting part (25) that tilts toward the rear and a rearward tilting part (26) tilting further rearward and upward.