JP2006246779A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing apparatus capable of sieve-separating waste straw on a straw rack while sufficiently disaggregating the waste straw, with such a simple construction as to merely modify plate-like rack members a bit. <P>SOLUTION: The threshing apparatus comprises a threshing section for subjecting grain culms to threshing treatment and a swing separatory section for subjecting the resulting threshed product to swing separation while conveying it. In this apparatus, a straw rack 10 composed of many plate-like rack members 10a is attached to a swing frame 20 joined to the swing separatory section and arranged near the terminal end of the swing separatory section in the conveying direction, and each of the plate-like rack members 10a is constructed in such a cantilever fashion that the basal end located upstream of the conveying direction is fixed on the swing frame 20 and the tip located downstream of the conveying direction represents a free end, wherein the free end side is inclined relative to the vertical direction V and transversely swings when viewed in the conveying direction as the swing frame 20 swings. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention comprises a threshing portion for threshing cereal grains, and a rocking sorting portion for rocking and sorting while conveying a threshing processed product from the threshing portion, The present invention relates to a threshing apparatus which is attached to a swing frame connected to a swing sorting unit and is arranged near the end of the swing sorting unit in the transport direction.

Such a threshing device of a threshing device is a device for sieving and sorting swarf and grains by swinging swarf containing grains, and a large number of plate-like rack members are arranged along the vertical direction. ing.
Conventionally, the base end portions of the large number of plate-like rack members are attached to the swing frame connected to the swing sorting portion, and the distal end portions are also connected to each other by the frame body and integrated. In addition, there are also known ones having a free end at the tip (see, for example, Patent Document 1).

JP 2002-204615 A

  However, in any case, in the conventional Strollac, a large number of plate rack members are arranged along the vertical direction. Since the plate surface facing the vertical direction is oscillated and moved along the vertical direction, there is little room for improvement in this point because of the poor effect of screening the swarf on the Strollac while fully solving it.

  The present invention pays attention to such a conventional problem, and its object is to simply screen the rack member while simplifying the scraps on the strolac with a simple configuration that only requires a slight improvement. The object is to obtain a threshing device that can be sorted.

  The first characteristic configuration of the present invention includes a threshing portion for threshing cereal grains, and an oscillating sorting portion for performing oscillating sorting while conveying a threshing product from the threshing portion, and from a number of plate-like rack members. The threshing device is a threshing device which is attached to a swing frame connected to the swing sorting unit and is arranged near the end in the transport direction of the swing sorting unit, wherein the plate rack member is The base end portion positioned on the upper side in the transport direction is fixed to the swing frame, and is configured in a cantilever shape with the front end portion positioned on the lower side in the transport direction as a free end. Inclined obliquely with respect to the vertical direction and configured to swing horizontally in the horizontal direction as viewed in the transport direction as the swing frame swings.

According to the first characteristic configuration of the present invention, the plate-shaped rack member that constitutes the Strollac is fixed to the rocking frame at the proximal end located on the upper side of the swing sorting unit in the transport direction, and on the lower side of the transport direction. The free end side of the plate-like rack member is inclined obliquely with respect to the vertical direction, and is viewed in the conveying direction along with the swing of the swing frame. Since it is configured to sway horizontally in the horizontal direction, when sawdust is placed on the strolac, the plate rack member generates a lateral force due to the weight of the sawdust and rolls. Thereafter, the plate rack member attempts to return to the original position by the restoring force.
As a result, the plate-shaped stroller will naturally sway according to the weight of the sawdust and the swinging drive, and the screen will be sorted while solving the sawdust, so that only the free tip side of the plate-like rack member is tilted. With a simple configuration, it is possible to reliably carry out sieving and selection of swarf and grain to improve the grain recovery rate.

  According to a second characteristic configuration of the present invention, the plate-shaped rack member is inclined obliquely leftward or rightward with respect to the vertical direction from the base end portion to the free distal end portion, and the left inclined plate and the right inclined plate are provided. The rack members are alternately arranged along the direction perpendicular to the transport direction.

According to the second characteristic configuration of the present invention, since the plate-like rack member is inclined obliquely leftward or rightward with respect to the vertical direction from the proximal end portion to the free distal end portion, the sawdust is at the proximal end portion. Even if it is placed on the side, the free end portion may roll, and the free end side roll of the plate-like rack member is surely rolled.
And since the plate-like rack member of the left side inclination and the right side inclination is alternately arrange | positioned along the direction orthogonal to a conveyance direction, sawdust is solved by the combined rolling to the left side and the right side. As a result, the sieve selection between the sawdust and the grain becomes even more reliable and good.

An embodiment of a threshing apparatus according to the present invention will be described with reference to the drawings.
This threshing device is mounted on a traveling machine of a combine equipped with, for example, a pre-harvest processing device for cutting cereals, and, as shown in FIG. A threshing section A and a swing sorting section B that swings and sorts the threshing product from the threshing section A along the transport direction indicated by “C” in the figure are provided.
As shown in FIG. 3, the threshing portion A is stretched along the lower side of the handling cylinder 2 and the handling cylinder 2 that are rotationally driven around the longitudinal axis L of the combine traveling machine body (not shown). The threshing product after threshing is configured to include the receiving net 3 and the like, and is supplied to the swing sorting unit B positioned below through the dust feeding port 4 positioned on the rear side of the receiving net 3 and the handling cylinder 2. It is configured.

As shown in FIG. 2, the swing sorting unit B includes a synthetic resin sheave case 5, and the front side of the sheave case 5 swings in the front-rear direction on the inner wall of the threshing device via the link mechanism 6. An eccentric drive mechanism 7 is provided on the rear side, and the sheave case 5 is swung by a combined movement of the front-rear direction movement and the up-down direction movement with the crank movement of the eccentric drive mechanism 7. It is configured to be driven.
A front gren pan 8, a chaff sheave 9, and a stroll rack 10 are attached to the sheave case 5 from the upper side to the lower side in the conveying direction C. Glen sieves 12 are arranged below the chaff sheave 9 and are attached to the sheave cases 5, respectively.

In such a swing sorting part B, the front gren pan 8 sorts the specific gravity while conveying the leaked processed product from the receiving net 3 and the reduced processed product from the second reducer described later by swinging. The chaff sheave 9 sieves and sorts the fallen processed material from the front grain pan 8 while conveying it backward, and the glensheve 12 sieves the leakage treated product from the chaff sheave 9 by sieve.
The dust outlet receptacle 11 sorts the processed material discharged from the dust outlet 4 while swinging it backward, and is disposed near the end of the swing sorting portion B in the transport direction C. The rack 10 is configured to screen and process the processed products from the dust inlet receptacle 11 and the chaff sheave 9.

In addition, the sorting wind from the tang 13 disposed at the front lower side of the front gren pan 8 is dropped from the front gren pan 8, chaff sheave 9, gren sheave 12, dust inlet holder 11, and further from the stroll rack 10. Acts on the processed material to blow off swarf and the like to the outside of the threshing device, and the dust exhaust fan 14 disposed above the Strollac 10 sucks the floating dust generated in the swing sorting part B and discharges it outside the threshing device. To do.
The first thing that falls from the Glen Sheave 12 is collected by the first thing collecting screw conveyor 15 disposed below the Glen Sheave 12, and the second thing that falls from the chaff sheave 9 or the Strollac 10 is the Strollac 10. Is recovered by a second object recovery screw conveyor 16 disposed below the front side of the front part of the machine, and is further reduced by the second object reduction device 17 onto the front grain pan 8.

As shown in detail in FIG. 3 to FIG. 6, the chaff sheave 9 is composed of a large number of plate-shaped chaff members 9 a made of synthetic resin, and the large number of the plate-shaped chaff members 9 a are conveyed in the longitudinal direction of the swinging selection unit B. They are attached in parallel along the transport direction C in a direction perpendicular to the direction C. Therefore, a pair of left and right fixed links 18 along the conveying direction C of the swing sorting portion B are provided near the upper ends of both ends of the chaff sheave 9, and each plate-shaped chaff member 9 a is fixed by protruding from the fixed link 18. It is rotatably attached around the use pin 18a.
A movable link 19 is provided only on the right side in FIG. 3 as viewed from the front side of the combine, that is, below the end portion on the feed chain 1 side, of both ends of each plate-like chaff member 9a. The lower portion of the right end of 9a is pivotably attached around a movable pin 19a projecting from the movable link 19, and the movable link 19 is moved in the direction of the arrow by operating the artificial operation tool 21 for changing the interval. The distance D between the plate-like chaff members 9a can be changed by sliding.

In other words, the plate-like chaff member 9a constituting the chaff sheave 9 is supported by the fixed link 18 through the fixing pins 18a at the upper ends of the both ends, and only the feed chain 1 side is below the both ends. The lower end of the feed chain 1 is supported by the movable link 19 through the free link 19a, and the free end of the opposite end of the feed chain 1 is configured so that the distance D between the plate-like chaff members 9a can be changed. 9 is configured such that sieving can be selected in accordance with the amount of the threshing product falling on the top 9.
That is, in FIG. 3, since the barrel 2 rotates clockwise, the threshing processed product is inevitably biased to the left side, that is, the opposite side of the feed chain 1, and a relatively large amount of processed product falls to the left side of the chaff sheave 9. However, since the lower side of the left end of each plate-like chaff member 9a is a free end, each plate-like chaff member 9a has a gap D between each chaff member 9a depending on the weight of the processed material, as shown in FIG. Bends so that the left side is greatly expanded.
As a result, the gap D between the chaff members 9a becomes wider on the opposite side of the feed chain 1 where a relatively large amount of processed material falls, and becomes narrower on the side of the feed chain 1 where a relatively small amount of processed material falls. Sieve selection according to the amount of the processed material becomes possible.

As shown in detail in FIGS. 7 and 8, the Strollac 10 is configured by a number of plate-like rack members 10 a made of spring steel, and the number of plate-like rack members 10 a has the longitudinal direction of the swing sorting portion B. They are arranged side by side in the direction along the transport direction C and along the direction orthogonal to the transport direction C.
At the base end portion of each plate rack member 10a, that is, the end portion located on the upper side in the transport direction C of the swing sorting portion B, the plate rack member 10a is bent into an L shape. An attachment piece 10b is integrally provided, and each plate-like rack member 10a is fixed to the swing frame 20 whose base end portion is connected to the sheave case 5 via the attachment piece 10b, and is arranged in the conveying direction C. It is configured in a cantilever shape with a free end at the tip located on the lower side.

Each plate-like rack member 10a is inclined at a predetermined angle α on the left side or the right side with respect to the vertical direction V from the base end portion to the free tip portion, and the left side inclination And the right-side inclined plate-like rack members 10a are alternately arranged along the direction orthogonal to the transport direction C and attached to the swing frame 20.
Therefore, as shown in FIG. 8, each plate-shaped rack member 10a rolls in the lateral direction due to its weight when the processed material is placed on the plate-shaped rack member 10a as viewed in the conveyance direction C. After that, the plate rack member 10a made of spring steel rolls in the opposite direction due to the restoring force of the plate rack member 10a. As a result, the processed material on the Strollac 10 is sufficiently moved by the roll of each plate rack member 10a. It will be sorted out while being solved, and it will be possible to sort reliably.

[Another embodiment]
(1) In the previous embodiment, an example was shown in which each plate-like rack member 10a constituting the Strollac 10 was tilted and attached so as to have an angle α over the entire length from the base end portion to the free tip end portion. However, it is possible to incline only the free front end side of each plate-like rack member 10a, and in any case, it is not necessary to incline all of the plate-like rack members 10a. It can also be carried out by arranging plate-like rack members 10a that are inclined in two or two places.
The inclination angle α of the plate-like rack member 10a is for causing the free tip side of the plate-like rack member 10a to roll as desired. Specifically, the elastic force of the plate-like rack member 10a The length is appropriately determined in consideration of the weight of the processed material dropped on the Strollac 10 and the like.

(2) In the previous embodiment, the example in which the plate-like rack member 10a is formed of spring steel has been shown. However, in addition to the spring steel, for example, various metals including iron, synthetic resin, and the like, moderate elasticity It can be formed of various materials having strength.
Moreover, the threshing apparatus of this invention is not restricted to the threshing apparatus for combines shown in previous embodiment, It is applicable also to a stationary type threshing apparatus.

Schematic side view of threshing device Top view of the swing sorting part Longitudinal front view of threshing section Chaff sheave partially cutaway side view Chaff sheave partially cutaway front view Top view of chaff sheave Side view of Strollac Back view of Strolac

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Strollac 10a Plate-shaped rack member 20 Oscillating frame A Threshing part B Oscillating sorting part C Conveying direction of the oscillating sorting part V Vertical direction

Claims (2)

A threshing portion for threshing cereals and a swing sorting portion for swinging and sorting while transporting a threshing product from the threshing portion, and a strolac made of a number of plate-shaped rack members, the swing sorting portion A threshing device which is attached to a swing frame connected to the end of the swing sorting portion in the conveying direction,
The plate-shaped rack member is configured in a cantilever shape having a base end portion located on the upper side in the transport direction and fixed to the swing frame and having a distal end portion located on the lower side in the transport direction as a free end. A threshing device in which a free front end side of a rack member is inclined obliquely with respect to a vertical direction, and is swayed horizontally in the horizontal direction as viewed in the transport direction as the swing frame swings.   The plate-shaped rack member is inclined obliquely to the left or right with respect to the vertical direction from the base end portion to the free tip portion, and the left-side inclined and right-side inclined plate rack members are orthogonal to the transport direction. The threshing apparatus according to claim 1, wherein the threshing apparatus is alternately arranged along the direction of the movement.

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