JP5266973B2 - Threshing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing apparatus capable of smoothly unloading waste dust to the outside even when the large amount of materials to be treated such as straw wastes is unloaded from a waste dust treating chamber. <P>SOLUTION: The threshing apparatus includes the waste dust treating chamber 68 axially installing a waste dust treating cylinder located at the under rear of a threshing chamber axially installing a threshing cylinder having a threshing tooth, and having a helical tooth for separating grains from the materials which are transported from the threshing cylinder to be treated, and cutting and treating the materials to be treated other than the grains, and comprising members containing a ceiling wall surface 72 and a lower receiving net. The helical diameter of a rear treating tooth 71a2 is reduced from the helical diameter of a treating tooth 71a1 on the front side in the helical teeth, and a plurality of protrusion-like treating teeth 71a' are mounted on the rear treating tooth 71a2. A plurality of cutting teeth 71c are installed on the upper tilt side of the ceiling surface 72 of the waste dust treating chamber on the side opposite to the receiving net disposed under the waste dust treating cylinder so as not to overlap with the protrusion-like treating teeth 71a'. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a threshing device mounted on a combine or the like.

The combine is composed of a cereal reaping device, a threshing device, a Glen tank that temporarily stores after threshing, an auger that discharges the grain stored in the Glen tank, and the like.
In the handling room, which is the main threshing part of the threshing device, the culm harvested by the reaping device is inserted. Threshed by action. The material to be processed (grains and wastes) separated from the cereals passes through the handling net and is received by the swing shelf in the sorting room, and the second cereal grains (sometimes referred to as second products) and sawdust Etc. are separated and only the grain is transported to the Glen tank.

  The second grain is sent to the second processing chamber provided on the side of the handling room, separated into grains, branch rachis, etc. by the second processing cylinder, and dropped again on the swing shelf to select the specific gravity and blower. And separated into grains, sawdust, and the like. Short items such as sawdust generated in the handling chamber are transported to the dust disposal chamber and processed by the dust disposal cylinder.

  In the handling room in which the cereals are first inserted in the threshing device, most of the cereals are threshed by rotating the handling cylinder while the workpiece is being conveyed. Then, the object to be processed falling from the handling chamber is subjected to wind sorting in the sorting chamber while receiving air from the tang of the rear sheave while moving on a swing shelf that swings up and down and back and forth.

In the sorting room, the object to be processed that has moved on the swing shelf and the object to be dropped from the handling room are filtered and sorted, and branch branches, ears, cocoons, etc. are separated from single grains. Only infarcted grains, spiked grains, and broken straw grains are sent to the No. 2 processing chamber, and single grains are sent to the Glen tank. In addition, an object to be processed that is processed in the second processing chamber and contains almost no grain is sent to the dust disposal chamber and then cut and discharged to the outside of the machine body.
JP 2003-61448 A

According to the configuration of the threshing apparatus described in Patent Document 1, the waste such as swarf discharged from the dust treatment chamber is smoothly discharged, and the entire end of the dust treatment chamber is opened toward the rear side. In addition, a dust outlet is provided to discharge dust directly after being processed by the dust processing chamber.
However, when the object to be processed is discharged from the dust processing chamber to the outside of the machine, it may not be possible to smoothly discharge the dust to the outside of the machine if there is too much dust or long sawdust. It was.
Accordingly, an object of the present invention is to provide a threshing device that can smoothly discharge dust to the outside even when the amount of waste such as sawdust discharged from the dust processing chamber increases. It is.

The above problem can be solved by the following solution means.
The invention described in claim 1 is a handling chamber (66) in which a handling cylinder (69) having a handling tooth (69a) is pivoted, and located on the rear side of the handling chamber (66), and the handling chamber (66). A dust exhausting cylinder (71) having a helical tooth (71a) for separating the grain from the object to be conveyed conveyed from the through port (68a) is pivoted, and the ceiling wall surface (72) and the lower receiving wall Threshing provided with a dust disposal chamber (68) composed of a net (76), and a sorting section (50) for sorting the processing object falling from the handling chamber (66) and the dust disposal chamber (68). In the apparatus, the dust removal treatment cylinder (71) is larger than the spiral diameter of the front treatment tooth (71a1) provided at the front portion of the dust removal treatment cylinder (71) facing the communication port (68a) of the spiral teeth (71a). The helix diameter of the rear treatment tooth (71a2) provided in the rear part is reduced, and the rear treatment tooth (71a2) has a protruding treatment tooth (7 a ') is attached, and is on the upper inclined portion side of the ceiling wall surface (72) of the dust treatment chamber (68), between the communication port (68a) and the outlet portion of the dust treatment chamber (68). The plurality of incisors (71c) are arranged at positions that do not overlap the treated teeth (71a ′) in the axial direction view of the dust removal processing cylinder (71), and are the rear part of the threshing device, in the rear view A cross-flow fan (91) is disposed on the left side of the dust removal cylinder (71), is inclined such that the front side is high and the rear side is low, and the rear end portion is high on the left side when viewed from the rear, and the right side portion The first guide (23) that is inclined so that the horizontal width of the rear part is wider than the horizontal width of the front part is provided between the cross-flow fan (91) and the dust treatment cylinder (71). It is attached to the side plate (22) between and the dust removal chamber (68) between the side plate (22) and the dust removal treatment cylinder (71). And the rear end portion of the first guide (23) is disposed on the rear side of the rear end portion of the swing shelf (51) of the sorting portion (50), so that the dust disposal chamber is disposed. The threshing device is configured such that the dust discharged from the outlet of (68) is diffused on the first guide (23) and directly discharged out of the machine .
According to the second aspect of the present invention, the sorting guide (24) for guiding the discharge from the swinging shelf (51) to the outside of the apparatus at the rear end of the swinging shelf (51), the first guide ( 23) It is arranged so as to overlap with the rear end of the first guide (23) in the vertical direction and so that the rear end is located behind the rear end of the first guide (23), and the cross flow fan (91) A wind guide (28) is erected on the lower casing (27b) of the upper and lower casings (27) constituting the air duct, and the first guide (23) is on the rear extension line of the lower casing (27b). The threshing device according to claim 1, wherein a rear end portion is arranged.

According to the first aspect of the present invention, the helical diameter of the rear processing teeth ( 71a2 ) provided in the rear dust disposal cylinder ( 71 ) is smaller than the helical diameter of the front processing teeth ( 71a1 ) . The intake of the object to be processed from the handling chamber ( 66 ) side to the dust disposal chamber ( 68 ) side is improved, and clogging of the object to be processed in the dust disposal chamber ( 68 ) is reduced. Since the cutting-out treatment teeth ( 71a ′ ) attached to the treatment teeth ( 71a2 ) can reliably cut the exclusion, even if the helical diameter of the rear treatment teeth ( 71a2 ) is reduced, the removal by the rear treatment teeth ( 71a2 ) . The filtration rate of the dust in the dust treatment chamber ( 68 ) is improved as compared with the conventional one, and the scattering of the third thing is reduced. Also over the protruding treated tooth (71a ') between the outlet portion of the communication port A on the inclined side of the ceiling wall of the dust-exhaust processing chamber (68) (68a) and the dust-exhaust processing chamber (68) The plurality of incisors ( 71c ) provided so as not to wrap can cut the sawdust more reliably, and improve the dust disposal performance.
Further, since the first guide (23) whose front side is high and whose rear side is low is provided between the right side plate (22) of the cross flow fan (91) and the dust exhausting cylinder (71), the dust exhausting chamber. Since the dust discharged from (68) travels through the first guide (23) and is directly discharged outside the machine, the sorted matter on the swing shelf (51) is not obstructed by the dust. This leads to a reduction in the number of scattered items. In addition, since the rear end portion of the first guide (23) has a configuration in which the left side is high and the right side is low, the diffusion effect of the dust discharged from the dust processing chamber (68) is improved.
Further, since the width in the left-right direction on the front side of the first guide (23) is narrowed and the width in the left-right direction on the rear side is increased, the dust guide layer is thinned and diffused on the first guide (23). Can be discharged. In addition, since the right side plate (22) provides a guide action by providing the first guide (23) on the right side plate (22) of the cross flow fan (91), the rear end of the first guide (23) Along with the upward slope of the part, the diffusion effect of the dust discharged from the dust processing chamber (68) is improved.
The rear end portion of the first guide (23) is provided on the rear side of the rear end portion of the swing shelf (51), the left rear end portion of the first guide (23) is higher, and the right rear end portion is lower. Therefore, the dust discharged directly from the dust processing chamber (68) to the outside of the machine does not adversely affect the selected items on the swing shelf (51), and the dust processing chamber (68) The discharged swarf is not clogged, and the third loss in which the grain is discharged from the swing shelf (51) together with the swarf can be reduced.
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the guide for discharging the discharge from the swing shelf (51) to the rear end of the first guide (23) outside the machine. By partially overlapping with the sorting guide (24), the waste discharged from the first guide (23) to the outside of the machine is further diffused by the sorting guide (24) and discharged outside the machine. The And since the dust discharge can be brought to the right side by the wind guide (28) provided on the lower casing (27b) of the casing (27), the diffusion effect of the dust discharged from the dust treatment chamber (68). Contribute to.

  FIG. 1 shows a left side view of a combine that performs a grain harvesting operation according to an embodiment of the present invention, and FIG. 2 shows a plan view of the combine of FIG. 3 shows a partially cutaway side sectional view of the combine threshing apparatus of FIG. 1, FIG. 4 shows a rear view of the combine threshing apparatus of FIG. 1, and FIG. 5 shows the combine threshing of FIG. The AA line arrow top view of an apparatus is shown. In the present embodiment, the front side and the rear side in the forward direction of the combine are referred to as front and rear, respectively, and the left side and right side are referred to as left and right, respectively.

  At the lower part of the traveling frame 2 of the combine 1 shown in FIGS. 1 and 2, there is a pair of left and right crawlers 4 made of a flexible material such as rubber and formed into an endless belt shape. The crawler 4 is provided with a traveling device 3 configured to be able to travel freely with a slight sink, a cutting device 6 is mounted on the front portion of the traveling frame 2, and an engine and a threshing device 15 (not shown) are installed on the upper portion of the traveling frame 2, The cockpit 20 and the Glen tank 30 are mounted.

  The reaping device 6 is configured such that the entire reaping device 6 can be lifted and lowered by a telescopic action of a reaping lifting cylinder (not shown), and cereals vegetated on the farm can be harvested at a predetermined height. The weeding tool 7 is disposed at the lower part of the front end of the reaping device 6, the cereal raising device 8 having an inclined shape behind it, and a cutting blade (not shown) at the rear bottom thereof. Between the cutting blade and the starting end portion of the feed chain 14 of the threshing device 15, the front conveying device, the handling depth adjusting device, the supply conveying device 9 and the like (not shown) are successively transferred and adjusted for the cereals. Arranged as possible.

The operation of the harvesting device 6 of the combine 1 is performed as follows. First, the engine is started and the operation levers for shifting, steering, etc. are operated so that the combine 1 moves forward, and the cutting and threshing clutch (not shown) is inserted and operated to transmit the rotating parts of the aircraft. When the traveling frame 2 is caused to travel forward, cutting and threshing operations are started. The cereals to be planted in the field are subject to weeding by the weeding tool 7 at the lower front end of the reaping device 6, and then the culm is raised and the device 8 is raised to bring it upright if it is lying down. The cereal stock reaches the cutting blade and is cut, and is scraped into the front transport device and transported rearward. It is conveyed to.
The cereal meal is inherited between the feed chain 14 and the culvert 12 from the supply conveyance device 9 and supplied to the threshing device 15. The threshing device 15 has a handling chamber 66 with a handling cylinder 69 pivoted on the upper side, and a sorting unit 50 is provided integrally on the lower side of the handling chamber 66 to thresh and sort the supplied harvested cereal meal.

  As will be described in detail later, the cereal mash supplied to the threshing device 15 is inserted into a handling chamber 66 which is a main threshing portion, and a plurality of teeth 69a of a handling drum 69 which is pivoted on the handling chamber 66 and rotated. The threshing is performed by the transfer by the feed chain 14 and the interaction with the handling net 74, and the object to be processed (grains and wastes) is received by the swing shelf 51 of the sorting unit 50 in the threshing device 15, and up and down While moving on the swinging shelf 51 swinging in the wind, the wind is sorted by receiving air from the tang 79, and the grain passes through the sheave 53 and the sorting net 63, and from the first spiral 65a, the conveying spiral (not shown). ) Is transferred to the Glen tank 30 through the first cereal cylinder 65 having a built-in), and temporarily stored in the Glen tank 30. On the shaft center in the longitudinal direction of the first cereal cylinder 65, the straw outlet of the Glen tank 30 is provided.

  The remaining threshed culm that has reached the end of the handling chamber 66 of the threshing device 15 and is kept in a long length is sandwiched and transported between a culling chain and a culling head chain (not shown), and the rear part of the threshing device 15 Is discharged into the waste disposal chamber 95, cut by the straw cutter 96, and discharged to the field.

  A grain tank helix (not shown) for transferring grains is provided at the bottom of the glen tank 30, and a discharge auger comprising a vertical auger 18 and a horizontal auger 19 is provided on a helical drive shaft (not shown) for driving the glen tank helix. The grains that are connected and stored in the Glen tank 30 are discharged to the outside of the combine 1 through the discharge auger discharge port 19a. The Glen tank spiral, vertical auger spiral (not shown), and horizontal auger spiral (not shown) are rotationally driven in response to the power of the engine and convey the stored grains by the screw conveyor action of each spiral blade. .

  The grain husks harvested by the reaping device 6 are adjusted in the handling depth by the cereal conveyance and adjusting device attached to the reaping device 6 and inserted into the handling chamber 66 which is the main threshing portion of the threshing device 15. A handling drum 69 pivoted on the handling chamber 66 has a large number of teeth 69a on its surface. And the motive power from an engine is transmitted and it rotates to the arrow B direction of FIG. 5 with a drive mechanism.

  Grains with grains inserted in the handling chamber 66 are transferred in the direction of arrow A in FIG. 5 by the moving feed chain 14, while the teeth 69 a and the handling net 74 of the handling drum 69 rotate in the direction of arrow B. Is threshed by the interaction. Then, the object to be processed (grains and sawdust) separated from the cereals passes through the handling net 74 (FIG. 3) below the handling cylinder 69 and is received by the swing shelf 51 of the sorting unit 50.

The swing shelf 51 includes a transfer shelf 52 disposed below the handling net 74 of the handling chamber 66, a sheave 53 disposed behind the shelving rack 53, a sorting net 63 disposed below the shelving rack 52, and a stroll rack 62 disposed at the rearmost end. ing. The sheave 53 causes the workpiece to leak from between the sheaves while swinging, and sorts the wind force by blowing air from the Karatsu 79.
The transfer shelf 52 includes a plurality of rack-shaped sorting plates 52 a, and the transfer shelf 52 is disposed in front of the sheave 53. The transfer shelf 52 is arranged below the handling cylinder 69 so as to receive the second processed material.

The grain shed in the early stage of threshing that leaks in the area in front of the handling net 74 is a single grain and does not contain impurities, so there is no need for coarse sorting on the sieve 53, and the tang 79, which will be described later with the direct sorting net 63. The wind can be selected by blowing air from, and the load on these sheaves 53 can be reduced and efficient threshing becomes possible.
Further, since the swing shelf 51 swings in the up / down and front / rear direction by the operation of the swing shelf drive mechanism (not shown), the object to be processed leaks onto the swing shelf 51 while moving in the arrow D direction (FIG. 3). The grain having a high specific gravity passes through the sorting net 63 in the direction of arrow E, is accumulated on the first shelf 64, and is transported from the first spiral 65a to the grain tank 30 via the first lifting cylinder 65. The grains stored in the Glen tank 30 are conveyed to the outside of the combine 1 via the augers 18 and 19.

  Among the objects to be processed on the swing shelf 51, the lighter ones are blown off by the swing action of the swing shelf 51 and the air blown by the fan 79 a of the Karatsu 79 and are directed in the direction of arrow D from the swing shelf 51 toward the sheave 53. The second small grain on the Strollac 62 is leaked in the direction of the arrow G, collected on the second shelf 85, and conveyed to the second lifting cylinder 87 by the second spiral 86. The

The second kernel (sometimes called the second product) is a mixture of normal kernels, branch boughs, sawdust and scorpion grains with normal kernels in the waste. The inside of the whipping cylinder 87 is pumped up by a second whipping cylinder spiral (not shown), and discharged from the second processing chamber entrance to the second processing chamber 67. The second processing cylinder 70 pivoted at the lower portion of the second processing chamber 67 transmits power from the engine and rotates in the direction of arrow J in FIG. 5 by the drive mechanism. The second kernel is separated from the second kernel and branch branch while traveling in the direction of arrow I (FIGS. 3 and 5) while colliding with a number of processing teeth 70a implanted in the second processing cylinder 70. The part of the object to be processed passes through a receiving net (not shown) provided below the second processing cylinder 70 and leaks to the sorting unit 50, and most of the object to be processed is removed. Is sent from the transfer shelf 52 in the direction of the sheave 53, and the grain passes through the sheave 53 and the sorting net 63 and is collected in the first spiral 65a.
In this way, the second product is collected on the transfer shelf 52 and reprocessed by the sheave 53, so that the separation between the grain and the sawdust is improved.

On the other hand, the remaining threshed cocoon that has reached the end of the handling chamber 66 of the threshing device 15 and is long is sandwiched and conveyed between a culling chain and a culling head chain (not shown), and the threshing device 15 It is thrown into the rear waste disposal chamber 95 and released to the field.
Further, among the objects to be processed that have reached the end of the object to be processed conveyance direction of the processing chamber 66, short objects such as sawdust are thrown in the direction of the arrow A2 from the communication port 68a (FIG. 5) of the dust removal processing chamber 68. Then, it enters the dust disposal chamber 68 and is processed while being conveyed in the direction of arrow K (FIGS. 3 and 5) by the spiral 71a of the rotating dust disposal cylinder 71 (FIG. 6).

  As shown in FIG. 3, a cross flow fan 91 is provided at the rear of the threshing device 15, and among dusts generated in the threshing device 15 including the dust removal processing chamber 68, swarf, branching bellows and dust having a low specific gravity are removed. The contained air is sucked by blowing air by rotation of the cross flow fan 91, blown out in the direction of arrow L from the outlet of the cross flow fan, and discharged to the outside of the combine 1.

  Of the dust that has fallen from the dust removal processing chamber 68 to the end of the swing shelf 51 as indicated by an arrow M (FIG. 3), those having a small diameter and a high specific gravity, such as second and third grains, 51 passes through the end portion 51 of the stroller 62 or the sheave 53 in the direction of arrow G, leaks to the second shelf 85, and is again processed in the second processing chamber 67.

Of the dust that has fallen from the dust removal processing chamber 68 to the end of the swing shelf 51 as indicated by the arrow M, slightly longer scrap is received by the Strollac 62, and the swing motion of the swing shelf 51, It is discharged from the rear side of the swing shelf 51 by the air blowing force of the red pepper 79 and released to the field.
About 70% of the cereal grains supplied to the threshing device 15 are threshed in the front side handling chamber 66 which is approximately 1/3 of the length of the handling cylinder 69 in the rotational axis direction. The handling net 74 is leaked while rotating around.

6A is a partially enlarged side view of the dust removal treatment chamber 68 with the duct 92 removed, and an arrow view of the outlet portion of the dust removal treatment chamber 68 as seen from the direction of arrow A in FIG. As shown in FIG. 6B, the dust removal treatment cylinder 71 is provided behind the spiral diameter of the front treatment teeth 71a1 provided in the dust removal treatment cylinder 71 on the communication port 68a side of the dust removal treatment chamber 68. The rear processing teeth 71a2 have a smaller helical diameter, a plurality of protruding processing teeth 71a 'are attached to the rear processing teeth 71a2, and the dust processing cylinder 71 is positioned below the protruding processing teeth 71a' so as not to overlap. The upper inclined portion on the inner wall surface side of the ceiling wall surface 72 serving as a casing of the dust collection chamber 68 on the opposite side of the receiving net 76 disposed between the communication port 68a and the dust collection chamber discharge port. Incisors 71c were provided.
In this way, the spiral diameter of the rear processing teeth 71a2 provided in the dust removal processing cylinder 71 at the rear is smaller than the spiral diameter of the front processing teeth 71a1, so that the covering from the treatment chamber 66 side to the dust removal processing chamber 68 side is performed. In addition to improving the uptake of the processed material, clogging of the processed material in the dust processing chamber 68 is reduced, and the protruding processing teeth 71a ′ attached to the rear processing teeth 71a2 ensure cutting of the waste. Therefore, even if the helical diameter of the rear treatment teeth 71a2 is reduced, the filtration rate of the dust inside the dust treatment chamber 68 by the rear treatment teeth 71a2 is improved as compared with the conventional one, and the scattering of the third thing is reduced. Further, on the upper inclined portion side of the ceiling wall surface of the dust removal treatment chamber 68 on the opposite side of the receiving net 76 disposed below the dust removal treatment cylinder 71 so as not to overlap the protruding treatment teeth 71a ′, the communication port The plurality of cutting teeth 71c provided between 68a and the outlet portion of the dust removal processing chamber 68 can cut the sawdust more reliably, and the dust disposal performance can be improved as compared with the prior art.

  Further, since the radius from the central axis of the processing cylinder 71 of the protruding processing tooth 71a ′ attached to the rear processing tooth 71a2 having a reduced helical diameter is the same as the radius of the front processing tooth 71a1, the processing tooth 71a ′ Since the removal can be cut reliably, even if the helical diameter of the rear treatment teeth 71a2 is reduced, the filtration rate of the dust inside the dust treatment chamber 68 by the rear treatment teeth 71a2 is improved as compared with the conventional one. Spatter is reduced.

  Further, the processing stroke of the object to be processed by the cutting teeth 71c from the length of the processing stroke of the object to be processed by the protruding processing teeth 71a ′ (= the attachment range of the protruding processing teeth 71a ′ to the dust removal processing cylinder 71). Is shortened (= attachment range of the cutting teeth 71c to the dust removal processing cylinder 71) and the intervals between the plurality of cutting teeth 71c are made equal, so that the chips in the workpiece are cut finely Thus, the filtration rate of the dust in the dust processing chamber 68 is improved as compared with the conventional one, and the scattering of the third thing is reduced.

  In addition, since a space is provided between the inside of the inclined upper portion of the ceiling wall 72 that constitutes a part of the casing of the dust removal processing chamber 68 and the receiving net 76 and the cutting teeth 71c are provided in the space, the cutting teeth 71c are discharged. It becomes difficult to transfer resistance of the object to be processed in the dust treatment chamber 68, so that the dust can be cut finely and the filtration rate of the dust in the dust treatment chamber 68 is improved compared to the conventional one, and the scattering of the third thing is prevented. Since the cutting teeth 71c are provided in the space, the casing including the ceiling wall surface 72 can be removed together with the cutting teeth 71c, so that the cutting teeth 71c can be easily replaced and the dust removal chamber 68 can be easily cleaned. Can do.

Further, FIG. 3, the wall surface (duct 92) of the clean room outlet of dust-exhaust processing chamber 68 as shown in Figure 4, the front side is high, a structure in which the rear side is rather low slope, wide right side from the tip of the treated tooth 71a The axial center of the crossflow fan 91 is arranged higher than the rotational axis of the dust exhausting cylinder 71, and the front side is higher between the right side plate 22 (FIG. 4) of the crossflow fan 91 and the dust exhausting cylinder 71. Since the first guide 23 having a lower rear side is provided on the right side plate 22 of the cross flow fan 91, the dust discharged from the dust processing chamber 68 is directly discharged outside the apparatus through the first guide 23. The selected item on the swing shelf 51 is not obstructed by the dust, and the scattering of the third item is reduced. In addition, the rear end portion of the first guide 23 has a configuration in which the left side is high and the right side is low and has an inclination angle of about 45 ° with respect to the horizontal. The diffusion effect is also improved.

In addition, since the width in the left-right direction on the front side of the first guide 23 is narrowed and the width in the left-right direction on the rear side is widened, the dust discharge layer can be thinned on the first guide 23 and then diffused and discharged. .
Furthermore, since the right side plate 22 provides a guide action by providing the right side plate 22 of the cross flow fan 91, the rear end portion of the first guide 23 has an upwardly inclined slope, so The diffusion effect of the dust discharged from the dust processing chamber 68 is also improved.

  Further, since the rear end portion of the first guide 23 is provided on the rear side of the rear end portion of the swing shelf 51, the dust discharged directly from the dust processing chamber 68 to the outside of the machine is on the swing shelf 51. The swarf discharged from the dust processing chamber 68 is not clogged on the Strollac 62 without adversely affecting the selected items, and the grains are discharged from the swing shelf 51 together with the swarf 3 from the machine. The number loss can be reduced.

As shown in FIG. 4, since the left rear end of the first guide 23 is raised and the right rear end is lowered, the dust discharged directly from the dust treatment chamber 68 to the outside of the machine swings. The selected items on the shelf 51 are not adversely affected.
Further, as shown in the perspective view of the main part of the dust removal processing chamber 68 in FIGS. 3 and 7, the rear end portion of the first guide 23 is a guide for discharging the discharged matter from the swing shelf 51 to the outside of the apparatus. When the guide 24 is partially overlapped in the vertical direction, the discharged material discharged from the first guide 23 to the outside of the apparatus is further diffused by the sorting guide 24 and discharged to the outside of the apparatus.

  Further, since the draft guide 25 of the sorting guide 24 is provided in the very left vicinity of the first guide 23, the dust discharged directly from the dust processing chamber 68 to the outside of the machine is moved further to the right by the draft guide 25. Since they are brought together and diffused, the diffusion effect of the dust discharged from the dust processing chamber 68 is improved without interfering with the discharge from the swing shelf 51.

Further, a wind guide 28 is provided in the lower casing 27b (see FIGS. 3 and 4) of the separation plate 27 (comprising the upper casing 27a and the lower casing 27b) constituting the duct of the crossflow fan 91 (in FIG. 3). Only one is shown). Further, the rear end portion of the first guide 23 is arranged on the extension line of the lower casing 27b of the separation plate 27.
In this way, the dust guide can be moved to the right side by the wind guide 28 on the lower casing 27 b of the separation plate 27, which contributes to the diffusion effect of the dust discharged from the dust processing chamber 68.

  8A is a rear view of the main part of the dust removal processing chamber 68 (showing a state in which the second guide 31 and the receiving guide 35 are attached to the configuration shown in FIG. 6A) and FIG. 8B. As shown in a side view of the main part of the dust removal processing chamber 68 (a side view as seen from the direction of the arrow A with the duct 92 removed in FIG. 8A), FIG. 9B, the left side which is the sorting chamber 50 side is closed, and the dust discharged from the dust processing chamber 68 is placed on the right side, as seen from the direction of the arrow B in FIG. 9A. Since the second guide 31 is provided at the outlet of the dust processing chamber 68 so as to be discharged, the second guide 31 acts to further diffuse and discharge the dust from the dust processing chamber 68 to the right side. .

  Further, a side wall 31a facing the outside of the machine parallel to the axial center of the dust exhausting drum 71 integral with the second guide 31 is provided on the left side of the second guide 31, and the dust exhausting chamber 68 above the side wall 31a is provided. If the upper guide 32 is disposed so as to overlap the side wall 31 a in the side view of the machine body, dust discharged directly from the dust processing chamber 68 to the outside of the machine is caused by the second guide 31, the side wall 31 a, and the upper guide 32. Therefore, the diffusion effect of the dust discharged from the dust processing chamber 68 is improved without interfering with the discharge from the swing shelf 51 because the dust is moved closer to the left side and diffused.

  Further, a ceiling receiving mesh 33 that constitutes a part of the ceiling wall surface of the upper dust removal processing chamber 68 is provided outside the upper guide 32, and the sorting chamber 50 side of the ceiling receiving mesh 33 is closed to discharge dust on the right side. When the dust discharged from the chamber 68 is discharged, the diffusion effect of the dust discharged from the dust processing chamber 68 is further improved.

  Further, by providing the ceiling receiving net 33 with the receiving guide 35 that closes the sorting chamber 50 side and discharges the dust from the dust processing chamber 68 on the right side, the dust discharged from the dust processing chamber 68 is provided. In addition to the improved diffusion effect, the receiving guide 35 can be detached from the ceiling receiving net 33, so that maintenance is facilitated.

  If the inclined portion 35a is continuously provided on the left side of the receiving guide 35 and the end portion is wider than the start end portion, the dust discharged from the dust removal processing chamber 68 is not discharged to the swing shelf 51. Also, the diffusion effect of the dust discharged from the dust processing chamber 68 is improved.

  A rear inclined portion 35b is provided on the left side of the receiving guide 35 on the left side of the inclined portion 35a. The rear inclined portion 35b has a configuration in which a terminal end portion is wider than a starting end portion, and a lower end portion of the terminal end portion is disposed of dust. It overlaps with the inclined portion of the discharge duct 92 provided at the outlet of the processing chamber 68 and is disposed on the upper side. In this way, the dust discharged from the dust processing chamber 68 is not discharged to the swing shelf 51, and the diffusion effect of the dust discharged from the dust processing chamber 68 is improved.

The threshing apparatus of the present invention can be used in a harvested grain processing apparatus such as a combine.

It is a left view of the combine which performs the harvesting operation | work of the grain of embodiment of this invention. It is a top view of the combine of FIG. It is a partially cutaway side sectional view of the combine threshing apparatus of FIG. It is a rear view of the threshing apparatus of the combine of FIG. It is an AA arrow top view of the threshing apparatus of the combine of FIG. 3 is a partially enlarged plan view of the combine threshing apparatus of FIG. 3 in which the duct of the dust removal treatment chamber is removed (FIG. 6A) and the dust removal treatment chamber viewed from the direction of arrow A in FIG. It is an arrow view (FIG.6 (b)) of an exit part. It is a principal part perspective view of the dust removal processing chamber of the combine threshing apparatus of FIG. The main part rear view (FIG. 8 (a)) of the dust removal processing chamber of the combine threshing apparatus of FIG. 3 and the arrow view seen from the arrow A direction (FIG. 8 (b)) with the duct of FIG. 8 (a) removed. It is. 9A is a partially enlarged view of FIG. 8A, and FIG. 9B is an arrow view seen from the direction of arrow B in FIG. 9A.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling frame 3 Traveling device 4 Crawler 6 Mowing device 7 Weeding device 8 Grain raising device 9 Feed conveyance device 12 Cinch 14 Feed chain 15 Threshing device 18 Vertical auger 19 Horizontal auger 19a Auger outlet 20 Pilot seat 22 Cross-flow fan right side plate 23 First guide 24 Sorting guide 25 Airflow guide 27 Separation plate 27a Separation plate upper casing 27b Separation plate lower casing 28 Airflow guide 30 Glen tank 31 Second guide 31a Second guide side wall 32 Upper guide 33 Ceiling part receiving net 35 Reception guide 50 Sorting part 51 Oscillating shelf 52 Transfer shelf 52a Sorting plate 53 Sheave 62 Strollac 63 Sorting net 64 First shelf board 65 First cereal cylinder 65a First spiral 66 Handling room 67 Second Treatment chamber 68 Dust removal treatment chamber 68a Dust removal treatment chamber communication port 69 Handling drum 69a Teeth handling 70 Number processing cylinder 70a Processing teeth 71 Dust removal processing cylinder 71a Processing teeth (spiral) 71a 'Protruding processing teeth 71c Cutting teeth 72 Dust processing chamber casing ceiling wall surface 74 Handling net 76 Receiving net 79 Kara 79a Kara fan 85 Second shelf Plate 86 Second spiral 87 Second milling cylinder 91 Cross flow fan 92 Duct 95 Waste treatment chamber 96 Cutter

Claims (2)

A handling chamber (66) in which a handling cylinder (69) having a tooth handling (69a) is pivoted, and a rear side of the handling chamber (66), from the handling chamber (66) through a communication port (68a). A dust removal cylinder (71) having a helical tooth (71a) for separating the grain from the workpiece to be conveyed is pivoted, and is composed of a ceiling wall surface (72) and a lower receiving net (76). In a threshing apparatus comprising a dust removal treatment chamber (68), and a sorting section (50) for sorting an object to be processed falling from the handling chamber (66) and the dust removal treatment chamber (68) ,
Among the helical teeth (71a), the rear part of the dust removal treatment cylinder (71) is larger than the helical diameter of the front treatment teeth (71a1) provided at the front part of the dust removal treatment cylinder (71) facing the communication port (68a). The spiral diameter of the provided rear treatment teeth (71a2) is reduced, and a plurality of protruding treatment teeth (71a ') are attached to the rear treatment teeth (71a2), and the ceiling wall surface (72) of the dust removal treatment chamber (68) is attached. A plurality of cutting teeth (71c) are arranged on the upper inclined portion side between the communication port (68a) and the outlet portion of the dust disposal chamber (68), as viewed in the axial direction of the dust disposal cylinder (71). In the position where it does not overlap with the treated tooth (71a ′),
The rear flow of the threshing device, the rear flow fan (91) is arranged on the left side of the dust removal cylinder (71) in rear view,
Inclined so that the front side is high and the rear side is low, and the rear end is inclined so that the left part is high and the right part is low in rear view, and the horizontal width of the rear part is set to the left and right direction of the front part. The first guide (23) formed wider than the width is attached to the side plate (22) between the cross-flow fan (91) and the dust removal treatment cylinder (71), and the side plate (22) and the dust treatment cylinder are attached. (71) is disposed at the outlet of the dust disposal chamber (68),
The rear end portion of the first guide (23) is disposed on the rear side of the rear end portion of the swing shelf (51) of the sorting portion (50), and the outlet portion of the dust removal processing chamber (68) is disposed. A threshing apparatus characterized in that the discharged dust is diffused on the first guide (23) and directly discharged out of the machine . At the rear end of the swing shelf (51), a sorting guide (24) that guides the discharge from the swing shelf (51) to the outside of the machine, and the rear end of the first guide (23) are vertically Arranged so that the rear end portion is positioned behind the rear end portion of the first guide (23) so as to overlap in the direction,
A wind guide (28) is erected on the lower casing (27b) of the upper and lower casings (27) constituting the air duct of the cross flow fan (91), and the rear casing (27b) is extended rearward. The threshing device according to claim 1, wherein a rear end portion of the first guide (23) is arranged on a line.

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