JP2009225734A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing apparatus supplementing the winnowing capacity of a winnower fan and improving the winnowing capacity of tailings to improve the recovering efficiency of grains with reduced cost. <P>SOLUTION: Tailings comprising relatively small-size treating objects among treating objects falling from a threshing chamber 66 and a tailings treating chamber 67 placed adjacent to the threshing chamber 66 to a shaking shelf 51 of a screening chamber 50 are transferred toward the tailings treating chamber 67 with a tailing screw 86 placed in the cavity of the tailing shelf 85 while blowing screening wind from an opening 93 opened on the sidewall of the threshing apparatus 15 by a fan 90 placed on the extended part of a driving shaft 86a of the tailing screw 86 and blowing screening wind from the lower end of the tailing screw 86 toward the upper part of the tailing screw 86, thereby inhibiting the transfer of the straw dust, etc., in the tailings into the tailings treating chamber 67 to improve the screening performance of the tailings, dispense with an exclusive transmission mechanism for the fan 90 and reduce the cost of the fan 90 and the installation cost of the apparatus. <P>COPYRIGHT: (C)2010,JPO&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 cereals harvested by the reaping device are transported and inserted by the feed chain, and the cereals are provided with tooth handling provided on the surface of the handling cylinder that is pivoted in the handling room Threshed by interaction with the net. The material to be processed (grains and sawdust) is received by the swing shelf of the sorting room in the lower part of the threshing device, and moves from the swing shelf that swings up and down and back and forth while blowing air from the tang. After receiving the wind and sorting, the grain with the highest specific gravity is transported from the first spiral on the shelf board to the Glen tank via the first lifting cylinder and temporarily stored in the Glen tank. Also, the lighter ones to be processed on the swing shelf are blown away by the swinging action of the swing shelf and the air blown by the Karatsu, and the second small grain from the swing shelf is the second shelf board. And then transported to the second lifting cylinder by the second spiral.

  The second kernel is sent to the second processing chamber and separated by the second processing cylinder into grains, branch rafts, etc., and falls again on the swing shelf and separated into grains, second kernels, sawdust, etc. The Short items such as sawdust generated in the handling chamber are transported to the dust disposal chamber and processed by the dust disposal cylinder. The remaining threshed culms that have reached the end of the threshing unit's handling room are transported by the scouring and transporting device, put into the slaughtering treatment chamber at the rear of the threshing device, and released to the field. Is done.

Among the grains that are subjected to wind sorting by receiving air from the above-mentioned Karatsu, the second grain having a relatively small particle size is transferred to the second lifting cylinder by the second spiral on the second shelf board. Further, a second fan may be arranged between the first shelf and the second shelf in order to sort the wind (Patent Document 1).
Or in order to make the ventilation power from a red pepper more powerful, there exists a structure which extends the rotating shaft of a red pepper fan to the outer side of the outer wall of a threshing apparatus, and attaches a 2nd red pepper fan on an outer rotating shaft (patent document 2). .
Japanese Patent Laid-Open No. 7-322750 JP 2003-245007 A

According to the configuration described in Patent Document 1, it is necessary to newly provide a member for installing the second fan, a power transmission device, and the like in order to arrange the second fan between the first shelf and the second shelf. There is a problem that the cost is high.
Moreover, according to the structure of the said patent document 2, since what is necessary is just to attach a 2nd Kara fan on the same axis as a Kara fan, it is advantageous in terms of equipment cost, but it sorts with the wind sorting ability by a Kara fan. There is a limit to the object to be processed, and there is a problem that the wind sorting ability of the second object conveyed by the second spiral on the second shelf board is not improved so much.

  The object of the present invention is to solve the above-mentioned problems, supplementing the wind sorting ability by the Chinese fan, and improving the second wind sorting ability, which is advantageous in terms of cost, and improving the grain recovery efficiency. It is to provide a threshing device.

The above problem can be solved by the following solution means.
According to the first aspect of the present invention, a handling chamber (66) in which a handling cylinder (69) having teeth (69a) is pivoted and a second processing cylinder (70) disposed adjacent to the handling chamber (66) are provided as shafts. A suspended second processing chamber (67), and the object to be processed that is provided below the handling chamber (66) and the second processing chamber (67) and falls from the handling chamber (66) and the second processing chamber (67). A sorting chamber (50) having a swing shelf (51) for swinging and sorting while transporting an object backward, and a second shelf plate (85) for receiving a second thing leaking from the swing shelf (51). A second spiral (86) for transporting the second article leaked onto the second shelf plate (85) toward the second processing chamber (67), and a drive shaft of the second spiral (86) (86a) A threshing device is provided with a fan (90) for air blowing sorting at a portion extending to the outside of the threshing device side wall, and the sorting wind generated by the fan (90) is threshing device. It blows into the sorting wind guide chamber (94) formed under the second shelf board (85) from the opening (93) provided in the wall, and passes through the sorting wind guide chamber (94) to the second spiral (86). The threshing device is configured to blow the sorting wind from the front side to the upper side of the second spiral (86).

  According to the present invention, the fan 90 provided at the extension of the drive shaft 86a of the second spiral 86 causes the sorting wind guide chamber 94 formed below the second shelf 85 from the opening 93 provided on the side wall of the threshing device. Light items such as sawdust in the second thing that leaks onto the second shelf board 85 by blowing the sorting air and blowing the sorting air from the front side of the second spiral 86 toward the upper side of the second spiral 86. Can be blown and sorted so that it is not conveyed to the second processing chamber 67 side, the second product sorting performance is improved compared to the prior art, and no transmission mechanism dedicated to the fan 90 is required, and the fan 90 itself is also an axial flow type. Therefore, it can be constructed at a lower cost than the conventional cross-flow type, and the production cost of the threshing device can be reduced and provided at a lower cost.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a left side view of a combine that performs a grain harvesting operation of an embodiment of the present invention, FIG. 2 shows a plan view of the combine of FIG. 1, and FIG. 3 shows one of the combine threshing devices of FIG. A side cutaway side view is shown. In this 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 of the feed chain 14 of the threshing device 15, the transfer device 9 such as a front conveyance device, a treatment depth adjusting device, and a supply conveyance device (not shown) is successively transferred and handled in the cereal. It is arranged so that it can be adjusted.

  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, and is inherited by the handling depth adjusting device and the supply transport device, and is successively transferred to the upper rear portion. Be transported.

  The cereal flour is inherited from the supply conveyance device to the start end of the feed chain 14 and supplied to the threshing device 15. The threshing device 15 is provided with a handling chamber 66 having a handling cylinder 69 pivoted on the upper side between a front plate 97 and a rear plate 98, and a sorting chamber 50 provided integrally below the handling chamber 66. Thresh and sort the 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 sawdust) is received by the swing shelf 51 of the sorting chamber 50 in the threshing device 15, up and down, front and rear direction While moving on the swinging shelf 51 swinging to the wind, the wind is selected by receiving air from the tang 79, and the grains with heavy specific gravity pass through the sheaves 53 and 54 and the selection net 63, and from the first spiral 65, It is conveyed to the Glen tank 30 through the first cereal cylinder 78 (FIG. 9) incorporating the conveying spiral 78a, and temporarily stored in the Glen tank 30. On the shaft axis in the longitudinal direction of the first cereal cylinder 78, the straw discharge port of the Glen tank 30 is provided.

  The remaining threshed cereals that have reached the end of the handling chamber 66 of the threshing apparatus 10 and remain long are sandwiched between the slaughter chain 80a (FIG. 4) and the scouring tip chain 80b (FIG. 4). It is conveyed, thrown into the waste disposal chamber 82 at the rear of the threshing apparatus 10 and released to the field. In the waste disposal chamber 82, waste cutters 81a and 81b are provided, and the cereals cut by the waste cutters 81a and 81b are provided below the waste cutters 81a and 81b in a backward downward inclination. Guided by a plate-shaped cutting rod guide 96 (FIG. 3), it is discharged to the field.

  A grain tank spiral (not shown) for transferring grains is provided at the bottom of the grain tank 30, and a discharge auger composed of a vertical auger 18 and a horizontal auger 19 is provided on a spiral drive shaft (not shown) for driving the grain tank spiral. The connected grains and the grains stored in the Glen tank 30 are discharged from the discharge auger outlet to the outside of the combine 1. 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 the respective spiral blades. .

  4 shows a plan view of the vicinity of the handling drum 69 of the combine threshing device 15 of FIG. 1, FIG. 5 shows a plan view of the combine sorting room of FIG. 1, and FIG. 6 shows the threshing of the combine of FIG. The rear view of an apparatus is shown. Further, FIG. 7 shows an elevational cross-sectional view of the threshing device 15 taken along the line AA in FIG. 3, and FIG. 8 shows an elevational sectional view of the threshing device 15 taken along the line BB in FIG. FIG. 9 shows an elevational cross-sectional view of the threshing device 15 as viewed in the direction of arrows CC in FIG.

  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 cylinder 69 pivoted in the handling chamber 66 is provided with a large number of teeth 69a on its surface, and is rotated in the direction of arrow B in FIGS. 4 to 7 by power from the engine by a driving mechanism (not shown). To do. Grains with grains inserted in the handling chamber 66 are transferred in the direction of arrow A in FIG. 4 by the moving feed chain 14, while the handling 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. The object to be processed (grains and sawdust) separated from the cereals passes through the handling net 74 in the direction of the arrow C1 (FIG. 8) and is received by the swing shelf 51.

The swing shelf 51 includes a transfer shelf 52 arranged below the handling net 74 of the handling chamber 66, an upper first chaff sheave 53 and a second chaff sheave 54 arranged behind it, and a sorting net 63 below and a rearmost end. It is comprised from the stroller 62 etc. which were arrange | positioned.
The first chaff sheave 53 and the second chaff sheave 54 are common in that the workpiece is leaked from between the sheaves while swinging and the wind is selected by blowing air from the tang 79, but the conveying direction of the workpiece The first chaff sheave 53 on the front side is smaller in size than the second chaff sheave 54 on the rear side, and the distance between the sheaves is somewhat narrow. On the front side in the transport direction of the workpiece, the single grain content in the workpiece is high, so that only the single grain is leaked while suppressing the leakage of the sawdust, and the sawdust is transferred to the rear. Such a configuration is adopted.

Further, a diffusion guide 88 for diffusing an object to be processed on the swing shelf 51 is positioned above the first chaff sheave 53, and a front end of the diffusion guide 88 is positioned above the transfer shelf 52 in the conveyance direction of the object to be processed. It is provided to do.
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 first chaff sheave 53. The transfer shelf 52 is arranged below the handling cylinder 69 and can 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 (FIG. 3) is a single grain and does not contain impurities, so it is necessary to roughly sort on the first chaff sheave 53 and the second chaff sheave 54. In addition, it is possible to perform wind selection with the direct selection net 63 by blowing air from the tang 79, which will be described later, and the load on the chaff sheaves 53 and 54 is 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 conveyed from the first spiral 65 to the grain tank 30 via the first cereal cylinder 78 (FIG. 9). The 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, lightweight 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 the first chaff sheave 53 and the second chaff sheave from the swing shelf 51. No. 2 grain which moves in the direction of arrow D toward 54 and leaks in the direction of arrow G on the Strollac 62 and is collected on the second shelf 85, and second in the second spiral 86. It is conveyed to the whipping cylinder 87 (FIG. 8).

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 lifted by the second whipping cylinder helix 87 a and discharged upward from the second processing chamber 67 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. 4 by the drive mechanism. The second kernel is separated from the second kernel while branching in the direction of arrow I (FIGS. 3 and 4) while colliding with a number of processing teeth 70a planted in the second processing cylinder 70. The part of the object to be processed passes through a receiving net 75 (FIG. 7) provided below the second processing cylinder 70 and leaks into the sorting chamber 50, and most of the object to be processed is removed. Is sent from the transfer shelf 52 in the direction of the first chaff sheave 53 and the second chaff sheave 54, and the grain passes through the first chaff sheave 53, the second chaff sheave 54 and the sorting net 63 and is collected in the spiral 65.
In this way, the second product is collected on the transfer shelf 52 and reprocessed by the first chaff sheave 53 and the second chaff sheave 54, so that the separation between the grain and the waste is improved.

  The threshing cereals that have been threshed in the object to be processed that have traveled in the direction of arrow A in FIG. 4 and have reached the end of the handling room 66 are in the direction of arrow A1 shown in FIG. It is transported and put into the waste disposal chamber 82.

  In addition, among the objects to be processed that have reached the end of the processing object conveyance direction end by the handling cylinder 69 of the handling chamber 66, short objects such as scraps are transported by the handling cylinder 69 of the handling chamber 66. It is thrown in the direction of the arrow A2 (FIG. 4) from the dust collection chamber inlet 68a in the communication port 101 that communicates the end portion and the start end of the workpiece in the conveyance direction of the workpiece by the dust collection cylinder 71 of the dust collection chamber 68. Then, it enters the dust removal processing chamber 68 by the action of the spiral 71b for improving the intake from the handling chamber 66, and in the dust removal processing chamber 68, the processing teeth 71a of the dust collection processing cylinder 71 which rotates rotates in the direction of arrow K (FIG. 3). Processed while being transported. A spiral 71 b is provided on the upper side of the dust removal processing cylinder 71, and a processing tooth 71 a is provided on the lower side of the dust removal processing cylinder 71. On the side of the handling chamber 66 of the dust processing cylinder 71, a lattice-like dust processing cylinder frame 72 (FIG. 6) is provided along the lower side of the dust processing cylinder 71 and the outer periphery of the handling chamber 66 side. The filter body of the chamber 68 is configured.

  A rear end 72 a (FIG. 3) of the dust removal treatment cylinder frame 72 is disposed forward of a predetermined distance from a rear end 68 b (FIG. 3) of the dust removal treatment chamber 68. The first dust discharge port 102 for discharging the workpiece that has reached the rear end portion of the dust removal processing chamber 68 to the outside of the threshing device is provided between the swinging shelf and the rear end 68b of the dust removal treatment chamber 68. 51 is provided to be opened obliquely downward and rearward toward the top.

  Leakage (grains) in the processing object mainly composed of sawdust containing a small amount of grain entering the dust disposal chamber 68 leaks from the receiving net 76 (FIG. 3) onto the swing shelf 51. Then, it is guided to the Strollac 62 provided on the swing shelf 51 and sent from the second shelf board 85 to the second processing chamber 67 via the second lifting cylinder 87. The second processing cylinder 70 and the dust removal processing cylinder 71 on the same axis are driven by a driving force from the engine via a pulley, although not shown.

  As shown in FIG. 3, a suction fan 91 for sucking an object to be processed is provided at the rear part of the threshing device 15, and the dust having a low specific gravity among the dust discharged in the threshing device 15 including the dust processing chamber 68. Air containing litter, branch branches and dust is sucked by blowing air by the rotation of the suction fan 91, blown out in the direction of arrow L from the third dust outlet 92, and discharged outside the combine 1.

  On the other hand, the object to be processed that is not sucked by the air blown by the rotation of the suction fan 91 is provided at the rear end of the stroller 62 that is the terminal portion of the swing shelf 51, and second dust exhaust formed on the rear wall 15 a of the threshing device 15. It is discharged from the mouth 103 to the outside of the combine 1.

  The sawdust that has been transferred rearward on the swing shelf 51 and that is not filtered from the mesh of the chaff sheaves 53 and 54 and the Strollac 62 is subjected to the second discharge by the swing of the swing shelf 51 and the transport action of the Strollack 62. Although it is discharged from the throat 103 to the outside of the threshing device 15, the grain may be slightly contained in the sawdust, and thus the grain discharged to the outside of the combine 1 together with the sawdust is three. It is said that the third grain is discharged to the outside of the threshing device 15 as third loss (third loss), the third grain recovery loss, etc.

  Further, among the dust (dusted material) that has fallen from the dust disposal chamber 68 to the end of the swing shelf 51 as indicated by an arrow M (FIG. 3), the second grain and the third grain have a small diameter and specific gravity. The heavier one passes through the Strollac 62 or the second chaff sheave 54 at the end of the swing shelf 51 in the direction of the arrow G, leaks to the second shelf 85, and is processed again in the second processing chamber 67.

  According to the present embodiment, as shown in FIG. 6, the dust collection chamber 83 formed on the rear side of the handling chamber 66 and above the swing shelf 51 is opposed to the dust collection processing chamber 68 with the handling drum 69 interposed therebetween. The suction fan 91 is provided at a position where the suction fan 91 can remove the dust discharged from the first dust outlet 102 at the rear end of the dust processing chamber 68 and the dust reaching the rear of the swing shelf 51. The air is sucked by the air blown by the rotation, guided to the third dust outlet 92 below the suction fan 91, and discharged to the outside of the combine 1.

  Further, the object to be processed that has reached the rear end side of the swing shelf 51 is combined with the combine 1 in the rear end portion of the swing shelf 51 behind the first dust discharge port 102 of the dust discharge processing chamber 68. A second dust exhaust port 103 for discharging to the outside, and a shutter (plate body) 100 that can be opened and closed in order to prevent the third grain from being discharged from the second dust exhaust port 103. Is provided.

  The shutter 100 is formed of a plate having a longitudinal direction in the left-right direction, and is attached to the rear wall 15a of the threshing device 15 so as to be vertically rotatable by support members 104a, 104b on both the left and right sides of the upper end. One end side of the spring 95 is connected to the right side portion of the shutter 100, and the other end side of the spring 95 is connected to the rear wall 15a. The spring 95 is biased to an open state by a tensile force.

  When one end side of the operation wire 107 (FIG. 3) is connected to a connection position on one end side of the spring 95 in the shutter 100, and the operation wire 107 is pulled in the arrow Y direction (FIG. 3), the spring 95 is operated. The shutter 100 rotates in the closing direction against the pulling force. This pulling operation of the operation wire 107 is configured to operate an electric motor (not shown) in conjunction with the ascent of the reaping device 6, and pull the operation wire 107 by the operation of the electric motor to close the shutter 100. Alternatively, the operation may be performed by operating a lever provided near the cockpit 20.

In the rear view of the threshing device 15, the shutter 100 has the first dust outlet 102 and the second dust outlet 15 so as to give resistance to the workpieces discharged from the first dust outlet 102 and the second dust outlet 103. It is provided so as to cover the installation range of the dust outlet 103.
Further, the shutter 100 may be capable of changing and fixing the opening / closing angle. For example, when the layer thickness of the processing object such as the rice cake on the swing shelf 51 is small, the opening / closing angle is reduced in order to prevent the recovery loss of the third grain, and conversely the layer of the processing object on the swing shelf 51 When the thickness is thick, the opening / closing angle is increased, and not only the layer thickness of the object to be processed on the swing shelf 51, but also according to the amount of processing of the whole cereal and the state of the field (dry, moisture, etc.) What is necessary is just to enable it to change suitably.

  The second dust exhaust port 103 and the shutter 100 for opening and closing the second dust exhaust port 103 are provided so as to overlap the dust exhausting cylinder 71 in the rear view of the threshing device 15, and when the shutter 100 is closed, the dust exhausting processing chamber is provided. The dust exhaust that has reached the rear end side of 68 flows in the direction of arrow P (FIG. 6) by the suction air of the suction fan 91 at the position facing the dust exhaust processing chamber 68 with the handling cylinder 69 interposed therebetween, and the shutter 100. It passes over the front Strollac 62 and is discharged out of the threshing device 15 through the third dust outlet 92 below the suction fan 91.

  When the shutter 100 is opened, the material to be processed that is not filtered from the mesh of the chaff sheaves 53 and 54 and the Strollac 62 due to the sawdust transferred rearward on the swing shelf 51 is discharged from the second dust outlet 103. The dust exhaust that has reached the rear end side of the dust processing chamber 68 is also slightly discharged from the mesh of the receiving net (lattice) 76 in the middle of the flow path before being discharged from the first dust outlet 102.

  However, when the shutter 100 is closed, the first dust outlet 102, the second dust outlet 103, and the shutter 100 are overlapped when viewed from the rear, so that the shutter 100 discharges from the second dust outlet 103. In order to provide resistance not only to the object to be processed but also to the object to be processed that reaches the rear end side of the dust processing chamber 68 and is discharged from the first dust outlet 102, The discharged object to be processed and the discharged dust reaching the rear end side of the dust removal processing chamber 68 are suppressed from being discharged to the outside of the threshing device 15, that is, not easily discharged.

When the layer thickness of the processed material such as the rice cake on the swing shelf 51 is reduced after the harvesting of the rice cake vegetated on the farm field, the third kernel is blown out together with the rice cake waste by the air blown by the rice cake 79. However, the third grain recovery loss is reduced by closing the shutter 100 of the second dust outlet 103.
For example, when cutting one side of the field and turning to the next side, if the shutter 100 is closed, in addition to the sawdust containing grains on the swing shelf 51, the dust is discharged from the end side of the dust removal cylinder 71. It is possible to stop the discharge by giving resistance to the flow of discharged dust.

  Therefore, the swinging shelf until the dust discharged from the conveying terminal end side of the dust exhausting cylinder 71 is guided to the suction fan 91 facing the dust exhausting cylinder 71 and is discharged from the first dust outlet 102. The stagnation on the swing shelf 51 and the suction fan 91 can be used to sort on the swing shelf 51, so that stabbed grains, keys and the like in the dust can be easily collected.

  Even when the shutter 100 is open, the object to be processed discharged from the conveyance end of the object to be processed in the dust removal processing cylinder 71 is selected on the swing shelf 51 until it is guided to the suction fan 91. However, especially when the shutter 100 is closed, this sorting and recovery effect is also enhanced, so that the recovery loss of the third grain can be reduced, improving the recovery efficiency of the grain and increasing the efficiency of the harvesting and threshing operation. be able to.

  Further, when the shutter 100 of the second dust discharge port 103 is opened, the shutter 100 may be provided along the lower surface of the cutting rod guide 96 below the cutting rod guide 96 of the discharge cutters 81a and 81b. That is, as shown in FIG. 3, when the shutter 100 is opened, the plane portion of the shutter 100 and the plane portion of the cutting rod guide 96 are parallel.

  The waste that has been cut by entering the waste cutters 81a and 81b from above the waste treatment chamber 82 flows in the direction of the arrow Q (FIG. 3) and easily enters the direction of the swing shelf 51. When the cocoons cut in this way fall from the second shelf 85 to the second spiral 86, the grain sorting performance deteriorates.

  However, by adopting this configuration, by providing the shutter 100 along the lower surface of the cutting rod guide 96 below the cutting rod guide 96 of the discharging rod cutters 81a and 81b, the cut waste discharged when the shutter 100 is opened. Even if dredging or mud falls from the cutting dredge guide 96, it slides down the upper surface of the shutter 100 downward and is guided to the waste disposal chamber 82 side to prevent it from entering the swing shelf 51. . In addition, it is possible to prevent the mud and the like adhering to the cutting slag and the waste scum from accumulating on the shutter 100 so that the shutter 100 is not hindered from being opened, and further, as long as it does not hit the cutting slag guide 96. As long as the opening angle of the second dust outlet 103 can be increased.

  As shown in FIGS. 3 and 8, an air split portion 105 is provided on the wind path of the selected wind from the Karatsu 79, and the wind from the Karatsu 79 is separated from the upper wind path A by the wind split 105. Divided into a lower air passage B. As shown in FIG. 3, the air dividing portion 105 has a side sectional shape in which the air dividing portion upper surface 105 a is straight and the lower surface 105 b is substantially parallel to the bottom surface of the sorting chamber 50, and the rear end portion of the lower surface 105 b is formed. It has an inverted chevron shape (inverted triangular shape) that is bent upward and connected to the upper surface 105a.

  In addition, a turbulent region is likely to occur on the rear surface (backward) of the wind dividing portion. That is, a loss occurs in the sorting wind from the Karatsumi 79 upward to the sorting chamber 50, and the sorting wind does not act effectively. However, by adopting this configuration, the selected air in the lower air passage B flows from the lower portion to the rear upper portion of the selected air flowing toward the rear of the upper air passage A, so that the selected air in the upper air passage A is blown. Since the sorting winds directed upward of the lower air passage B along the direction come to merge, the sorting winds blow up along the rearward upward slope of the air splitting section upper surface 105a, and the blown-up winds flow upward. Easier to escape. That is, it is possible to effectively use the sorting air from the Karatsumi 79 toward the top of the sorting chamber 50. Therefore, the air blowing sorting capability in the front portion of the swing shelf 51 is improved, leading to an improvement in sorting processing efficiency and sorting performance.

Further, as shown in the partially enlarged view of FIG. 3 in FIG. 10 and the arrow view from the direction of arrow A in FIG. 10 of FIG. 11, the shaft is formed outside the side wall of the threshing device 15 of the drive shaft 86a of the second spiral 86. A fan 90 for blowing air in the flow direction is provided. Further, as shown in FIGS. 10 and 11, an air chamber (sorting air guide chamber) 94 is provided below the second shelf 85, and a threshing device is provided so that the air generated by the fan 90 is blown into the air chamber 94. A wire mesh 93a is attached to the opening 93 provided on the side wall, and the second from the air chamber 94 between the end of the second shelf 85 and the first shelf 64 (second sorting air outlet 94a). The selection wind is blown above the spiral 86. The gap (second selection wind outlet 94 a) has a width that extends over substantially the entire length of the second spiral 86.
As described above, since the fan 90 is provided on the drive shaft 86a of the second spiral 86, the selection performance of the second object is improved as compared with the conventional one, the transmission mechanism dedicated to the fan 90 is not required, and the fan 90 itself is inexpensive. Therefore, the installation cost can be reduced.

  FIG. 12 shows a front view (FIG. 12A) of the combine threshing device 15 and the engine chamber 17 of FIG. 1 and a plan view (FIG. 12B) of the Kara fan 79a portion of the threshing device 15. A fan 23 for discharging hot air from the engine compartment 17 to the left side of the machine body is provided at the end of the pulley 21a provided on the output shaft 21, and a case 24 for guiding hot air sent by the fan 23 is provided on the front plate 97 of the threshing device 15. The hot air from the engine is guided into the threshing device 15. Inside the front plate 97, the lower part of the start end of the transfer shelf 52 of the swing shelf 51 is disposed.

  Conventionally, hot air has been emitted to the left side of the machine through the front side of the threshing device 15, but since there was no air channel through which hot air surely flows, the hot air rose above the machine and the temperature around the operator seat 20 Could not be lowered too much.

However, since the opening 97a of the front plate 97 of the threshing device 15 is not only opposed to the lower side of the start end of the transfer shelf 52 but also opposed to the tang inlet, the configuration shown in FIG. 12 is adopted. Thus, the hot air around the engine chamber 17 can be reliably sucked into the threshing device 15 and blown out toward the first chaff sheave 53 of the swing shelf 51. As a result, since the object to be processed can be roughly sorted at the front portion of the sorting net 63, the grain sorting performance can be improved and the threshing ability can be increased. Moreover, since the hot air sucked into the threshing device 15 can be used as the sorting air by the Kara 79, the wet material adaptability can be improved.
Moreover, since the hot air sucked into the threshing device 15 can be discharged from the rear of the threshing device 15, the temperature around the operation seat 20 can be lowered.

13A shows a side sectional view of the cockpit 20 of the combine 1 of FIG. 1, and FIG. 13B shows a front view of the cockpit 20 of the combine 1 of FIG.
A U-shaped cross-sectional plate 112 is welded and fixed below the cockpit 20, and a U-shaped cross-sectional plate 111 is disposed below the U-shaped plate 112. The long support shaft 116 is welded and fixed to the top. The U-shaped plate 111 can be slidably connected to the U-shaped plate 112 by fixing a plurality of holes provided in the U-shaped plates 111 and 112 with pins or the like. In this way, the cockpit 20 can be moved back and forth, and the front and rear position of the cockpit 20 can be changed according to the operator and work content.

  Further, a handle 115 for changing and fixing the vertical height (vertical position) of the cockpit 20 is provided below the U-shaped plate 111. The shaft 115b fixed to the handle 115a of the handle 115 is a hexagonal bolt, and a screw-like portion 115ba (the length U portion in FIG. 13 (a)) at the tip and a portion 115bb (where the screw portion on the handle 115a side is not formed). Grooves (screw holes) 116a, 116b formed in the support shaft 116 that is fixed to the lower portion of the cockpit 20 and supports the cockpit 20 from below. , 116c, the vertical position of the cockpit 20 can be fixed.

  Further, since the support shaft 116 is inserted into a boss 117 fixed to the engine cover 16 and can be moved up and down in the boss 117, screw holes 116a, 116b and 116c into which the shaft 115b of the handle 115 is inserted are provided. By changing the position, the vertical position of the cockpit 20 can be changed. The boss 117 is reinforced and supported from behind by a reinforcing plate 120 fixed to the upper portion of the engine cover 16, and a collar 121 is provided at a contact portion between the boss 117 and the shaft 115 b, and the boss 117 is also provided by the collar 121. Is also reinforced and supported from the front. Thus, the support shaft 116 inserted into the boss 117 forms a strong support structure supported by the boss 117 from the front and rear.

  Then, the vertical position of the cockpit seat 20 can be firmly fixed by fitting the screw portion 115ba of the hexagon bolt 115b into the screw holes 116a, 116b or 116c. In the illustrated example, three screw holes 116a, 116b, and 116c are shown, but more may be provided.

  Further, a pin (not shown) having a smaller screw outer diameter is provided at the tip of the screw portion 115ba of the handle 115, and a hole is provided in the boss 117 that supports the support shaft 116. The screw portion 115ba of the handle 115 is provided in this hole portion. A pin at the tip is inserted, and the handle 115 is securely supported and fixed by the support shaft 116 and the boss 117. In this way, the play of the handle 115 is completely eliminated, and the looseness of the handle 115 can be completely prevented.

As shown in FIG. 13, according to the present embodiment, a hexagon bolt is used for the shaft 115 b of the handle 115.
The handle 115 for changing and fixing the vertical position of the cockpit seat 20 is a manual type that is tightened by turning the handle 115a by hand, and tightening is insufficient for an operator such as an elderly person who has little gripping force. May loosen. However, since the shaft 115b of the handle 115 is composed of a hexagon bolt, it can be tightened with a wrench or the like and will not loosen. Further, since the shaft 115b of the handle 115 is composed of a hexagonal bolt, it is economical without cost.

  13A, the collar 121 is welded to the boss 117, and the plate 123 is welded around the shaft portion 115bb where the screw portion of the handle 115 is not formed. When the screw portion 115ba of 115 is inserted into the support shaft 116 (boss 117) and screwed, only the screw portion 115ba is inserted into the support shaft 116 (boss 117), and the shaft portion 115bb is inserted into the collar 121. It is the composition which is done. When the threaded portion 115ba of the handle 115 is inserted into the support shaft 116 (boss 117) and screwed, the collar 121 and the plate 123 come into contact with each other and the collar 121 is supported by the boss 117 and the plate 123. The handle 115 is fixed.

  In addition, by making the outer diameter of the plate 123 substantially the same as the outer diameter of the collar 121, the contact area between the plate 123 and the collar 121 can be increased, the surface pressure can be lowered, and the handle 115 is not loosened. .

  In addition, since the collar 121 is positioned on the shaft portion 115bb where the screw portion of the handle 115 is not formed, a load applied to the cockpit 20 when the operator sits on the cockpit 20 is handled by the handle 115. The collar 121 is fixed to the shaft 115b of the handle 115 and further supported by the plate 123 and the boss 117 so that the collar 121 is not deformed and the cockpit 20 is always stably fixed. be able to.

  Further, a mounting stay 124 bent in an L shape in a side view is mounted on the body, and the rising surface 124 a and the boss 117 of the column shaft 116 are connected by the reinforcing plate 120. Therefore, it is possible to prevent the boss 117 of the support shaft 116 from collapsing in the front-rear direction.

  In addition, since the reinforcing plate 120 is provided on the rear side of the cockpit 20, the handle 115 that fixes the vertical position of the cockpit 20 and the reinforcing plate 120 do not interfere with each other and support the cockpit 20. The distance between the U-shaped plates 111 and 112 and the mounting stay 124 can be narrowly arranged.

  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 side surface sectional drawing of the threshing apparatus of the combine of FIG. It is a top view of the vicinity of the barrel of the combine threshing apparatus of FIG. It is a top view of the sorting room of the combine of FIG. It is a rear view of the threshing apparatus of the combine of FIG. FIG. 4 is an elevational sectional view of the threshing device as viewed in the direction of arrows AA in FIG. 3. Fig. 4 is an elevational sectional view of the threshing device as viewed in the direction of arrows BB in Fig. 3. Fig. 4 is an elevational sectional view of the threshing device as seen from the line C-C in Fig. 3. FIG. 4 is a partially enlarged view of FIG. 3. It is an arrow view from the arrow A direction of FIG. It is the front view (FIG. 12 (a)) of the combine threshing apparatus and engine room of FIG. 1, and the top view (FIG.12 (b)) of the Kara fan part of the threshing apparatus. The sectional side view (FIG. 13A) of the cockpit of the combine of FIG. 1 is a front view (FIG. 13B) of the cockpit of the combine of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling frame 3 Traveling device 4 Crawler 6 Cutting device 7 Weeding device 8 Grain raising device 9 Conveying device 14 Feed chain 15 Threshing device 15a Rear wall 16 Engine cover 17 Engine room 18 Vertical auger 19 Horizontal auger 20 Pilot seat 21 Engine output shaft 21a Pulley 23 Fan 30 Glen tank 50 Sorting chamber 51 Swing shelf 52 Transfer shelf 52a Sorting plate 53 First chaff sheave 54 Second chaff sheave 62 Strollac 63 Sorting net 64 First shelf plate 65 First spiral 66 Handling chamber 66a Recovery chamber 67 Second processing chamber 68 Dust processing chamber 68a Dust processing chamber inlet 68b Rear end of dust processing chamber 69 Handling cylinder 69a Teeth 70 Second processing cylinder 70a Treatment teeth
71 Dust removal processing cylinder 71a Processing teeth 71b Spiral 72 Dust processing cylinder frame 72a Rear end 74 of dust processing cylinder frame Handling net 75 No. 2 processing cylinder receiving net 76 Receiving net 78 First culling cylinder 78a Conveying spiral 79 Kara 79a Kara fan 80a Waste chain 80b Waste chain 81a, 81b Waste cutter 82 Waste treatment chamber 83 Dust chamber 85 Second shelf 86 Second spiral 86a Second spiral drive shaft 87 Second milling cylinder 87a Second Flour-cylinder helix 88 Diffusion guide 90 Fan 91 Suction fan 92 Third dust outlet 93 Threshing apparatus side wall opening 93a Wire net 94 Air chamber (selection wind guide room)
95 Spring 96 Cutting rod guide 97 Front plate 97a Opening portion 98 Rear plate 100 Shutter 101 Communication port 102 First dust outlet 103 Second dust outlet 104a, 104b Support member 105 Air divider 107 Operation wire 111, 112 U-shape Mold plate 115 Handle 115a Handle 115b Hexagon bolt 115ba Threaded portion 115bb Shaft portion 116 where no threaded portion is formed Support shaft 116a, 116b, 116c Groove (screw hole)
117 Boss 120 Reinforcing plate 121 Color 123 Plate 124 Mounting stay

Claims (1)

A handling chamber (66) in which a handling cylinder (69) having a tooth handling (69a) is pivoted;
A second processing chamber (67) in which a second processing cylinder (70) disposed adjacent to the handling chamber (66) is pivoted;
Provided below the handling chamber (66) and the second processing chamber (67), and swinging and sorting the workpieces falling from the handling chamber (66) and the second processing chamber (67) while transporting them backward. A sorting chamber (50) having a swing shelf (51);
The second shelf board (85) that receives the second article leaked from the swing shelf (51) and the second article leaked onto the second shelf board (85) are placed on the second processing chamber (67) side. A second spiral (86) to be conveyed
A fan (90) for air blowing and sorting is provided in a portion extending to the outside of the threshing device side wall of the drive shaft (86a) of the second spiral (86), and the sorting wind generated by the fan (90) is used as a threshing device. From the opening (93) provided on the side wall, the air is blown into the sorting wind guide chamber (94) formed below the second shelf plate (85), and the second spiral (86) is passed through the sorting wind guide chamber (94). A threshing apparatus characterized in that a sorting wind is blown out above the second spiral (86) from the front side.

Images