JP4730561B2 - Threshing device - Google Patents

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 grains after threshing, an auger that discharges the grains 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 objects to be processed that have moved on the swing shelf and the objects to be processed that fall on the first shelf and the second shelf from the handling chamber are filtered and sorted, and the waste is discharged outside the machine. Then, branch bracts, spikes, bracts, etc. are separated from single grains, and only the branch bracts, spikes, bracts are sent to the second processing chamber, and the single grains are sent to the Glen tank.

  The remaining threshed culms that have reached the end of the handling room of the threshing device, which are long, are sandwiched and conveyed by the culling chain, and are used in the sewage treatment chamber at the rear of the threshing device. After being put into the cutter, it is cut and released to the field. If the waste generated in the threshing device stays in the conveyance path of the object to be treated, it will be entangled with the power transmission system of the threshing device and cause clogging, so it is preferable that it is quickly conveyed and released out of the machine. .

  In the following Patent Document 1, a sprout tip transfer device or the like is formed in a space formed by the rear outer side of the saglet grain dropping chamber at the rear of the threshing chamber, the right side of the barrel shaft, the transfer start end side of the waste spear tip transfer device, or the like. The structure which provided the transmission case and provided the handling cylinder long and made the takeover of a waste good was disclosed. Further, in Patent Document 2 below, in order to facilitate the takeover between the supply device to the grain shed and the waste transporting device, the start end of the waste transporting device is exposed above the transport terminal end of the supply device. In addition, a configuration is disclosed in which the starting end of the waste transporting device and the terminal end of the supply device are overlapped in plan view.

And in the structure described in the following patent document 3, the conveyance termination | terminus part of a waste conveyance body can be rotated so that conveyance and maintenance work of a waste can be performed favorably, and the conveyance start end part of a waste conveyance body is made into a rotation. Supporting movably on the stock side of the handle barrel upper cover, the upper cover and the cover of the waste transporting body can be moved up and rotated together to open the top, and long enough to discharge the waste. A waste transporter is secured.
JP 2006-67814 A JP 2003-23849 A Japanese Patent Laid-Open No. 9-9777

  With these configurations of Patent Documents 1 to 3, the takeover and transfer of the waste are improved. However, if the dust is blown up by the sorting wind from Tang Dynasty and entangled and collected in the transmission system of the waste chain, etc., the sorting efficiency may be lowered, or the transmission of the waste chain may be hindered.

  According to the configuration described in Patent Document 1, dusts blown up by the sorting wind from the Kara may be entangled with a transmission case such as a waste tip transfer device. Moreover, according to the structure of the said patent document 2, the starting end part of a waste conveyance apparatus is made to face the conveyance termination part upper part of the supply apparatus to the handling chamber of a grain candy, and a starting end part of a rejection conveyance apparatus by planar view Since the end portions of the supply devices are overlapped, if the distance between the two devices is too close and the waste accumulates between the two devices, clogging is likely to occur. In addition, there is a possibility that dusts blown up by the sorting air from the tang will be entangled and collected in the transmission gear box for the waste transporting device near the start end of the waste transporting device.

  Moreover, according to the structure of the said patent document 3, since the transmission system of a waste conveyance body is located between a grain tank and a threshing apparatus, the width of a threshing apparatus becomes wide and the request | requirement of size reduction of a combine is made. I can not cope. Moreover, since the transmission system of the waste transporter is outside the threshing device, it must be disposed through the side wall of the threshing device, and the structure of the threshing device becomes complicated.

  The subject of this invention is providing the compact threshing apparatus which can prevent the clogging of a waste, a stay, etc. with a simple structure, can convey waste efficiently, and can respond to the request | requirement of size reduction.

The above problem can be solved by the following solution means.
The invention according to claim 1 is provided below the handling chamber (66), and a handling chamber (66) in which a handling cylinder (69) for threshing the grain from the cereal basket is pivoted from the handling chamber (66). A sorting chamber (50) for sorting while dropping the workpiece to be processed backward, and a dust exhausting cylinder (71) for taking over and processing the workpiece that has reached the end in the conveying direction of the handling chamber (66). A shaft-mounted dust disposal chamber (68), a waste disposal section (95) for treating the waste after threshing by the handling cylinder (69), and a conveying direction end of the handling cylinder (69) A waste transporting device (110, 111) for transporting waste from the waste processing unit (95) to a shaft (71c) of a dust processing cylinder (71) and a shaft (69b) of a handling cylinder (69). A transmission mechanism which is provided at a position above the shaft (69b) of the handling cylinder (69) and drives the waste transporting device (110, 111) (122a) and a, axis thresher axis in the conveying direction terminal end side of the workpiece (69b) of the drive rotor for driving the transmission mechanism portion (122a) (121) and thresher (69) The endless belt (106) is stretched over the worn rotating body (120), and the power from the engine for driving the threshing device is transmitted from the handling cylinder shaft (69b) to the transmission mechanism (122a). The rotation direction of (106) is set so that the upper part (106a) of the winding region of the endless belt (106) rotates in the downward inclination direction, and the upper part of the winding region of the endless belt (106) (106a) It is configured to drop the dust placed on the bottom and send it to the sorting chamber (50) so that the lower part (106b) of the winding region of the endless belt (106) rotates in the upward inclination direction. At the bottom of the winding area of the endless belt (106) A threshing machine set to substantially the same direction as the conveying direction of the straw discharge by partial straw discharge transport device the direction of rotation of (106b) (110,111).

According to the first aspect of the invention, the axis of the shaft (71c) and thresher (69) of the transmission mechanism for driving the straw discharge conveying device (110 and 111) (122a) The dust-exhaust processing cylinder (71) ( than the shaft (69b) of and the threshing drum (69) between 69b) by providing the upper position, clean room products generated by threshing chamber (66) are blown up by the sorting wind by winnowing fan (79) is less likely to accumulate in the transmission mechanism for hard to reach to the transmission mechanism portion (122a) (122a).

In particular, since there is almost no object to be processed above the handling cylinder ( 69 ) and the dust disposal cylinder ( 71 ) , which are the main parts of the threshing device ( 15 ), the object to be processed is entangled with the transmission mechanism part ( 122a ). There is no worry of accumulating. Then, it is provided between the axis of the transmission mechanism portion (122a) of the dust-exhaust processing cylinder (71) (71c) and the axis of the threshing drum (69) (69b), thresher (69) and the dust-exhaust treatment cylinder ( 71 ) The transmission mechanism ( 122a ) can be arranged at a higher position while effectively using the space between the two.
Therefore, with such a simple configuration, it is possible to prevent the waste from clogging or staying in the transmission mechanism section ( 122a ) and to improve the transportation of the waste.

And, the lower portion of the winding zone of the endless belt passed over the drive rotor (121) of the transmission mechanism from the handling drum shaft rotating body pivotally attached to (69b) (120) (122a) (106) ( Since the rotation direction of 106b) and the conveying direction of the waste by the waste transporting device ( 110, 111 ) are substantially the same direction, the rotation of the lower part (106b) of the winding region of the endless belt ( 106 ) is prevented. It does not interfere with the transport of the kite.

Thus, for example, it is straw discharge the drive rotor for driving transmission mechanism portion (122a) (121) are in contact, the rotation of the lower portion of the winding zone of the endless belt (106) (106b) is discharged Since it does not act so as to hinder the transport of the soot, the drive rotator ( 121 ) does not wrap around the drive or prevent the transport of the waste.
Also, the rotation direction of the endless belt (106) is such that the upper part (106a) of the winding region of the endless belt (106) rotates in the downward slope (downward) direction and the lower part (106b) rotates in the upward slope (upward) direction. By setting so, even if dust or the like is placed on the upper surface (surface) of the endless belt (106), it does not wrap around the endless belt (106) or accumulate on the endless belt (106). And the dust etc. on the endless belt (106) can be dropped downward along with the rotation of the endless belt (106), and can be sent to the sorting chamber (50).

  FIG. 1 shows a left side view of a combine that performs a grain harvesting operation according to an embodiment of the present invention, FIG. 2 shows a plan view of the combine of FIG. 1, and FIG. 3 shows a combine threshing apparatus of FIG. A partially cutaway side cross-sectional view is shown, and FIG. 4 is a plan view of the vicinity of the handling cylinder of the combine threshing apparatus of FIG. 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 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 backwards. 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 unit 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 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 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 via the first cereal cylinder 78 (FIG. 6) incorporating the conveying spiral 78a, and is 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 culms that have reached the end of the handling chamber 66 of the threshing device 15 are kept long and are sandwiched and transported between the culling root chain 110 and the culling head chain 111. It is inserted into the rear straw cutters 80a and 80b, cut, and released 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 carry stored grains by the screw conveyor action of the respective spiral blades. .

  Further, FIG. 5 shows an elevational cross-sectional view of the threshing device 15 as viewed from the line AA in FIG. 3, and FIG. 6 shows an elevational sectional view of the threshing device 15 as viewed from the line BB in FIG. FIG. 7 shows an elevational 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 has a large number of teeth 69a on its surface, and is rotated in the direction of arrow B in FIGS. 4 to 5 by power from the engine by a drive 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, and the teeth 69 a and the handling net 74 of the handling drum 69 that rotate in the direction of arrow B are rotated. Is threshed by the interaction. The object to be processed (grains and wastes) separated from the cereals passes through the handle net 74 in the direction of arrow C1 (FIG. 5) 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. The air blown from the tang 79 is divided into upper and lower portions by an air split portion 105 provided in the air flow passage.

  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 65 to the grain tank 30 via the first lifting cylinder 78 (FIG. 6). 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.

  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 (FIG. 5) is lifted by the second whipping cylinder helix 87 a and discharged upward from the second processing chamber 67 from the second processing chamber inlet. The second processing cylinder 70 pivoted at the lower portion of the second processing chamber 67 transmits the power from the engine and rotates in the direction of arrow J in FIG. 3 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 the receiving net 75 (FIG. 5) 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 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 95. Further, the waste after being threshed by the handling drum 69 is discharged to the rear side of the handling chamber 66 from the drainage port 92 formed in the rear plate 98 of the handling chamber 66 by the feed chain 14.

  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. From the entrance of the dust treatment chamber at the communication port 101 that communicates the end portion and the start end of the workpiece in the transport direction of the workpiece by the dust treatment cylinder 71 of the dust treatment chamber 68, it is thrown in the direction of arrow A2 (FIG. 4), The dust 71 enters the dust processing chamber 68 by the action of the spiral 71b that improves the intake from the handling chamber 66. In the dust processing chamber 68, the processing teeth 71a of the dust processing cylinder 71 that rotates rotates in the direction of the arrow K (FIGS. ) And being processed. 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 disposal cylinder 71, a lattice-like dust disposal cylinder frame 72 (FIG. 7) is provided along the lower side of the dust disposal cylinder 71 and the outer periphery of the handling chamber 66 side. The filter body of the chamber 68 is configured.

  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 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.

Further, a front middle plate 96F and a rear middle plate 96R are disposed before and after the communication port 101 (FIG. 4), and the rear end portion of the handling net 74 (FIG. 3) is supported by the front middle plate 96F.
A handling cylinder 69 between the rear middle plate 96R and the rear plate 98 on the rear side of the communication port 101 is a collection cylinder 69c (FIG. 4) of a fourth object such as scorpion grains, and the end of the handling chamber 66 in the conveyance direction of the workpiece. A recovery chamber 66 a for recovering the scorpion grains that have reached the section side is provided in the handling chamber 66. In the collection chamber 66a, the rear end portion of the handling cylinder 69 facing the inside of the collection chamber 66a (the collection cylinder 69c) with respect to the spear tip portion after the threshing process is performed by the tooth handling 69a provided from the front to the rear of the handling cylinder 69. ), And the grain stuck into the tip of the swallowing tip can be struck down on the swing shelf 51 and collected.

  As shown in FIGS. 5 to 7, in order to prevent the workpiece from leaking outside the handling chamber 66, the workpiece to be carried from the feed chain 14 into the handling chamber 66 on the side of the handling cylinder 69. A resistance plate 81 attached to the inside of the handling cylinder cover 102 that can be freely opened and closed may be provided in the vicinity of the supply port of the article in parallel with the axial direction of the handling cylinder 69. Further, between the resistance plate 81 and the handling cylinder 69, a stocker side guide body 82 for guiding the object to be processed into the inside of the handling chamber 66 is disposed in parallel with the resistance plate 81 (see FIGS. 3 and 3). In FIG. 4, since the stock source side guide body 82, the guide plate 84 described later, and the like are omitted, the side view is shown in FIG. 9, and the plan view is shown in FIG.

  Further, the stocker side guide body 82 rotates from the start end portion of the handling cylinder 69 in the conveyance direction of the workpiece to the substantially central portion of the handling cylinder 69 when the handling teeth 69a rotate when the handling cylinder 69 rotates as viewed from the conveyance direction. A comb-like portion that overlaps with the locus and a flat portion that does not overlap with the rotation locus of the tooth handling 69a during rotation of the treatment barrel 69 when viewed from the conveyance direction, from the substantially central portion rearward of the treatment barrel 69 to the end portion in the conveyance direction of the workpiece. The longitudinal direction is provided in parallel with the axis of the handling cylinder 69.

  FIG. 5 shows a state in which the stock-side guide body 82 overlaps with the rotation locus of the handle teeth 69 a from the start end portion of the handle cylinder 69 in the conveyance direction of the workpiece to the rear of the center portion of the handle cylinder 69.

  FIG. 6 shows a state in which the stock-side guide body 82 does not overlap with the rotation locus of the tooth handling 69 a from the rear of the center portion of the handling drum 69 to the end portion in the conveyance direction of the workpiece. By installing the stocker side guide body 82 inside the resistance plate 81, the workpiece in the handling chamber 66 is guided to the inside of the handling chamber 66 to reduce the grains that are crushed into the stock, and the stockholder side guide By providing the body 82 on the connecting frame 100 in which the front plate 97 and the rear plate 98 are connected, the frame configuration is strengthened and the stocker side guide body 82 is also stably attached.

  Furthermore, a lower end portion of the inside of the handling cylinder cover 102 has an arc shape along the outer periphery of the handling cylinder 69 when viewed from the conveyance direction of the workpiece in the handling cylinder 69, and a direction orthogonal to the axis of the handling cylinder 69. The upper partition plate 83 may be provided which has a plate-like flat portion and restricts the conveyance of the object to be processed to the lower side in the conveyance direction in the handling cylinder 69. And as shown in FIG.5 and FIG.6, by providing the upper partition plate 83 so that it may overlap with the rotation locus of the tooth 69a at the time of rotation of the handle 69 when seen from the conveyance direction of the object to be processed in the handle 69, The object to be processed can be returned to the upper conveyance side by the interaction between the upper partition plate 83 and the tooth handling 69a.

  Further, when the upper partition plate 83 (FIG. 3) is provided at substantially the same position in the front-rear direction as the rear middle plate 96R in front of the recovery chamber 66a, the upper partition plate 83 and the rear middle plate 96R flow the grain backward. Resistance is provided, the recovery of the scorpion grains in the recovery chamber 66a behind the upper partition plate 83 is improved, the filtration of the material to be processed in the handling chamber 66 is promoted, and the recovery loss of the third grain is also reduced. . In addition, a planar portion is provided in the vicinity of the communication port 101 in a direction substantially orthogonal to the axis of the handling cylinder 69, and the conveyance of the object to be processed from the handling cylinder 69 in the handling chamber 66 to the dust disposal chamber 68 is restricted. However, you may provide the guide plate 84 (refer FIG. 9, FIG. 10) which guides. A guide plate 84 provided in the vicinity of the communication port 101 has a plate-like flat portion in a direction substantially orthogonal to the axis of the handling cylinder 69, and imparts conveyance resistance to the object to be processed in the handling chamber 66 to provide the covered plate. The processed material can be transferred and guided from the communication port 101 to the dust removal processing chamber 68 side. That is, by giving an appropriate conveyance resistance to the object to be processed in the processing chamber 66, the object to be processed can easily flow into the dust processing chamber 68 from the communication port 101, and the dust processing chamber from the processing chamber 66 side. The flow of the object to be processed toward the 68 side can be made smooth, and the generation of abnormal noise due to overload in the handling chamber 66 can be reduced.

FIG. 8 is a rear view showing a part of the combine shown in FIG.
And according to this embodiment, the waste input gear case 122 equipped with the bevel gear mechanism 122a (FIG. 4) which drives the waste root chain 110 and the waste spike tip chain 111 is used as the dust treatment chamber of the sorting chamber 50. It is provided in the vicinity of the side wall on the 68 side, approximately in the middle of the dust removal treatment cylinder shaft 71c and the treatment cylinder shaft 69b and above the treatment cylinder shaft 69b.

The handling drum 69 pivoted in the handling chamber 66 rotates in the direction of arrow B in FIGS. 4 to 5 by the power from the engine as described above. As shown in FIGS. 4 and 8, a waste output pulley 120 is pivotally attached to the handle cylinder shaft 69 b on the end side of the handling cylinder 69 in the conveyance direction of the workpiece, and the waste output pulley 120. When the waste input belt 106 is passed over the waste input pulley 121, the waste output pulley 120 and the waste input pulley 121 are both rotated in the direction of arrow T by the rotation of the barrel 69b, and the power from the engine is reduced. It is transmitted to the bevel gear mechanism 122a in the reject input gear case 122.
In addition, the tension pulley 107 provided on the lower waste input belt 106 between the waste output pulley 120 and the waste input pulley 121 can adjust the tension and relaxation of the waste input belt 106.

  The shaft 107a of the tension pulley 107 is fixedly connected to the right end portion of the tension arm 108, and the left end portion of the tension arm 108 has a transmission case 135 (Fig. 4). One end of a tension spring 109 is connected to the upper center of the tension arm 108, and the other end of the tension spring 109 is connected to the machine frame of the threshing device 15. The rejection input belt 106 is pressed and tensioned.

  As shown in FIG. 4, the power transmitted from the pulley shaft 121a of the waste input pulley 121 is driven at the root of the waste root chain 110 from the root chain input shaft 127 via the bevel gear mechanism 122a and the coupling 123. It is transmitted to the chain drive sprocket 126. The root chain drive sprocket 126 is provided near the center of the waste root chain 110.

  Then, the waste root chain 110 takes over the waste that has been threshed by the handling cylinder 69 and clamped by the feed chain 14 on the side of the stock (root), and moves from the front roller 130 on the feed chain 14 side to the end roller 131 in the direction of arrow U. (FIGS. 4 and 8).

  Further, power is transmitted from the root chain drive sprocket 126 to the tip chain input sprocket 128, and further transmitted from the root chain output shaft 129 to the tip chain drive sprocket 125, so that the rejecting tip chain 111 is removed from the rejecting root chain 110. In the same manner as in FIG. As in the present embodiment, the drive shafts of the draining root chain 110 and the draining spike chain 111 are provided, and the draining spike chain 111 is driven from the rear, so that the draining spike chain 111 is driven from the back side (driven from the rear). In this case, the lower part of the winding region of the rejecting point chain 111 can be conveyed on the tension side, and the upper part is on the loose side). Compared with the case of rotating 111, the conveying force of the waste is stabilized, and the waste can be prevented from being clogged due to poor conveyance.

  In this way, the tip of the waste discharged from the discharge port 92 of the handling chamber 66 is supported and guided by the waste tip support chain 111 by the tip support guide 113, and the root side is removed by the root support guide 117. Are supported and guided by the root chain clamping rod 115. Then, the waste conveyed in the direction of the arrow U by the waste chains 110 and 111 is put into the waste disposal chamber 95, cut by the straw cutters 80a and 80b, and discharged to the field.

  By adopting this configuration, even if the dust generated in the handling chamber 66 (dust discharged from the discharge port 92) is blown up by the sorting air by the Karatsu 79, it is difficult to reach the discharge input gear case 122. It is hard to collect in the input gear case 122. Due to the structure of the threshing device 15, there are cases in which transmission mechanism portions of the sewage root chain 110 and the sewage tip chain 111 are provided in the vicinity of the sewage exit 92, but dusts are particularly easily collected in the vicinity of the sewage exit 92. However, by providing the exhaust input gear case 122 at a location far from the exhaust port 92 as in this configuration, it is possible to prevent a problem in which dust is entangled with the exhaust input gear case 122.

  In addition, since there is almost no object to be processed above the handling cylinder 69 and the dust removal processing cylinder 71, which are the main parts of the threshing device 15, there is no fear that the object to be processed gets entangled with the transmission mechanism 122a. The space between the handling cylinder 69 and the dust processing cylinder 71 can be effectively used by providing the transmission mechanism portion 122a substantially in the middle between the dust processing cylinder shaft 71c and the handling cylinder shaft 69b.

  Therefore, with such a simple configuration, the waste can be transported satisfactorily by preventing clogging or staying of the waste. Further, the waste input gear case 122 can be configured as an empty space by removing the vicinity of the front end roller 130 at the front end portion (conveyance start end portion) of the waste root chain 110 and a portion where devices such as the feed chain 14 are crowded.

  Further, the rotational direction of the waste input belt 106 from the waste output pulley 120 attached to the barrel 69b to the waste input pulley 121 and the direction in which waste is conveyed by the waste root chain 110 and the waste tip 111 are shown. If the directions are substantially the same, the rotation of the evacuation input belt 106 does not hinder the conveyance of the evacuation.

  As shown in FIG. 8, the rotation direction (arrow T2 direction) of the waste input belt 106 from the waste output pulley 120 to the waste input pulley 121 and the transport of the waste of the waste root chain 110 and the waste head tip chain 111. The direction (arrow U direction) is the direction from the left side to the right side and is substantially the same direction.

  Therefore, for example, even if the waste is in contact with the waste input drive pulley 121, the rotation of the waste input drive pulley 121 and the rotation of the waste input belt 106 do not affect the transport of the waste. The waste does not wind around the pulley 121 or the waste is not prevented from being conveyed.

If the rotation direction of the waste input belt 106 is set such that the upper portion 106a of the winding area of the waste input belt 106 is inclined downward (downward) and the lower portion 106b is upwardly inclined (upward), the waste input belt 106 no or accumulated on the straw discharge input belt 106 or wound around the straw discharge input belt 106 I loading such as dust refuse to 106 the upper surface of the (surface).

As shown in FIG. 8, straw discharge input belt 106 so rotates the upper portion 106a is the direction of the arrow T1 of the winding zone (left downlink from the right side), I like dust refuse the mounting on the straw discharge input belt 106 Can also be dropped downward along with the rotation of the evacuation input belt 106 and sent to the sorting chamber 50. Further, the lower part 106b of the winding area of the squeezing input belt 106 rotates in the direction of arrow T2 (upward from the left side to the right side), that is, the cereal stock side (left side of the threshing device 15, feed chain 14). Side) to the tip side (right side of the threshing device 15), and there is no hindrance to the delivery of the waste by the waste root chain 110 and the waste tip 111.

  Further, as shown in FIG. 4, the tip of the lug 111 a of the waste picking tip chain 111 is in the vicinity of the waste output pulley 120 at the end of conveyance of the object to be processed of the handling drum 69. May be provided on the left side of the waste output pulley 120 and in front of the waste output pulley 120.

  Since the tip of the lug 111a of the waste chain tip chain 111 is located in the vicinity of the waste output pulley 120 and in the vicinity of the waste port 92 of the rear plate 98, the tip part of the waste discharged from the waste port 92 Is quickly transferred to the waste chain tip chain 111, so that the waste can be transported without disturbing the transport posture of the waste.

  Further, the tip of the lug 111a (the position indicated by the dotted line Z in FIG. 8) of the waste chain tip chain 111 is on the left side of the position of the left end of the waste output pulley 120 (the end of the waste output pulley 120 on the side of the waste outlet 92). Therefore, the tip of the lug 111 a is located closer to the discharge port 92 than the discharge output pulley 120. Furthermore, since the tip of the lug 111a of the waste chain tip chain 111 is ahead of the position of the waste output pulley 120 (dotted line V position in FIG. 4), the waste is rejected before contacting the waste output pulley 120. Handed over to the chain 111. Therefore, the waste does not wrap around the waste output pulley 120 at the takeover portion of the waste ear tip chain 111 near the waste outlet 92.

  Then, the waste output pulley 120 at the end of conveyance of the workpiece of the handling cylinder 69, the tip of the lug 111a of the waste tip 111, and the tip (tip roller 130) of the waste root chain 110 are moved in the left-right direction. You may provide on a substantially straight line.

  As shown in FIG. 4, when the leading roller 130 of the waste root chain 110 is provided forward until it overlaps the feed chain 14 in plan view, the waste output pulley 120 and the leading ends of the waste chain tip chain 111, and From the feed chain 14 to the waste root chain 110 and the waste needle tip chain 111, the takeover performance of the waste is improved.

  FIG. 9 shows a partially cutaway side cross-sectional view of a combine threshing apparatus for harvesting cereals according to another embodiment of the present invention, and FIG. 10 shows the vicinity of the barrel of the combine threshing apparatus of FIG. A plan view is shown, and FIG. 11 is a rear view showing a part of the combine threshing apparatus in FIG. The description of the same members as those in FIGS. 3, 4, 8, etc. will be omitted.

  Further, the handling cylinder 69 between the rear middle plate 96R and the rear plate 98 on the rear side of the communication port 101 is a fourth collection cylinder 69c such as scorpion grains, and is disposed on the end side in the conveyance direction of the workpiece in the handling chamber 66. A collection chamber 66a for collecting the arrived scorpion grains or the like may be provided in the handling chamber 66. In the collection chamber 66a, the rear end portion of the handling cylinder 69 facing the inside of the collection chamber 66a (the collection cylinder 69c) with respect to the spear tip portion after the threshing process is performed by the tooth handling 69a provided from the front part to the rear part of the handling cylinder 69. ), And the grain stuck into the tip of the swallowing tip can be struck down on the swing shelf 51 and collected.

  Further, in order to prevent the object to be processed from leaking to the outside of the handling chamber 66, it is opened and closed on the side of the handling cylinder 69 near the supply port of the object to be carried into the handling chamber 66 from the feed chain 14. A handling cylinder cover 102 that can be freely opened and closed by a handle 140 is preferably provided. The handling cylinder cover 102 is rotated up and down around the fulcrum 102a (FIG. 11) by operating an opening / closing handle 140 provided along the longitudinal direction of the handling cylinder 69 (the conveyance direction of the object to be processed). It is the structure which opens and closes.

As shown in FIGS. 9 to 11, the base of the opening / closing handle 140 is fixedly connected to one end of the connection member 147 on both the front side and the rear side, and the other ends of the connection members 147a and 147b are fixed to the removers 143a and 143b. It is connected. The upper portions of the hooks 142a and 142b connected to the lower portions of the removers 143a and 143b are provided with cutout portions having a circumferential cross section, and the lock pins 141a and 141b are engaged with the cutout portions. The left end (feed chain 14 side) of the lower surface (bottom surface) 102b of the barrel cover 102 is connected to the removers 143a and 143b, and when the opening / closing handle 140 is operated upward, the hooks 142a and 142b rotate the removers 143a and 143b. By rotating in the direction of arrow W (FIG. 11) with the shaft 145 as a fulcrum and coming off the lock pins 141a and 141b, the barrel cover 102 opens in the direction of arrow R.
In this way, the handling cylinder cover 102 can be easily opened and closed with one touch by operating the opening / closing handle 140, and the workability of the threshing work and the maintainability of the threshing device 15 are improved.

  And the front-end | tip part (conveyance start end part) of the waste root chain 110 is brought close to the conveyance direction termination | terminus part side (rear board 98 side) of the to-be-processed object of the handling cylinder 69 in the handling chamber 66, and the front-back direction of the handling chamber 69 is provided. The length L2 in the front-rear direction of the opening / closing handle 140 of the barrel cover 102 may be shorter than the length L1.

  In this way, the front and rear removers 143a and 143b, the hooks 142a and 142b, the lock pins 141a and 141b, and other lock portions 150a and 150b are connected to the handle cylinder cover 102 by the opening / closing handle 140, so that the handle cylinder cover 102 can be touched in one touch. And the drainage root chain 110 can be provided close to the vicinity of the rear plate 98 on the feed chain 14. That is, since the distance between the conveyance start end of the waste root chain 110 and the feed chain 14 is short, the takeover of the waste is performed smoothly and the waste is transported well.

Further, it is preferable that the remover portion 143b of the lock portion (rear lock portion) 150b in the vicinity of the rear plate 98 be bent forward so as to avoid the distal end portion (conveyance start end portion) of the exclusion root chain 110.
As shown in FIG. 10, the remover portion 143b of the lock portion 150b of the handling cylinder cover 102 provided on the rear plate 98 of the handling chamber 69 is bent forward so as to avoid the starting end portion of the drainage root chain 110 in a plan view. If it is provided in the Z shape, the drainage root chain 110 and the lock portion 150b of the handling cylinder cover 102 do not overlap with each other in plan view and can be provided at substantially the same height.

  Therefore, it becomes easy to bring the waste root chain 110 closer to the rear plate 98 of the handling cylinder 69, and the takeover and transfer of the waste from the waste outlet 92 become good.

  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 left side 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 an AA arrow directional view of FIG. It is a BB line arrow directional view of FIG. FIG. 4 is a view taken along the line CC in FIG. 3. It is the rear view which carried out the cross section and showed a part of combine threshing apparatus of FIG. It is left side sectional drawing of the combine threshing apparatus of other embodiment of this invention. It is a top view of the vicinity of the barrel of the combine threshing apparatus of FIG. It is the rear view which showed a part of threshing apparatus 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 18 Vertical auger 19 Horizontal auger 19a Discharge port 20 Pilot seat 30 Glen tank 50 Sorting part 51 Oscillating shelf 52 Transfer shelf 52a Sorting plate 53 1st chaff sheave 54 2nd chaff sheave 62 Strollac 63 Sorting net 64 First shelf 65 First spiral 66 Handling chamber 66a Collection chamber 67 Second processing chamber 68 Dust processing chamber 69 Handling Cylinder 69a Teeth handle 69b Handle cylinder shaft 69c Recovery cylinder 70 No. 2 treatment cylinder 70a Treatment teeth 71 Dust removal treatment cylinder 71a Treatment teeth 71b Spiral 71c Dust removal treatment cylinder shaft 72 Dust removal treatment cylinder frame 74 Handling net 75 Second treatment cylinder receiver Net 76 Receiving net 78 First cereal cylinder 78a Conveying spiral 79 Kara 79a Kara fan 80a, 80b Cutter for rice cake 81 Resistance plate 82 Stock-source side guide body 83 Upper partition plate 84 Guide plate 85 Second shelf plate 86 Second spiral 87 Second lifting cylinder 87a Second lifting cylinder spiral 88 Diffusion guide 91 Cross flow fan 92 Exhaust port 95 Waste treatment chamber 96F Front middle plate 96R Rear middle plate 97 Front plate 98 Rear plate 100 Connection frame 101 Communication port 102 Cylinder cover 102a Support point 102b Lower surface (bottom surface) 105 Air split portion 106 Waste input belt 107 Tension pulley 107a Tension pulley Axis 108 Tension arm 109 Tension spring 110 Exhaust root chain 111 Exhaust tip chain 111a Lug 113 Tip support guide 115 Root chain clamping rod 117 Root support guide 120 Exhaust output pulley 121 Exhaust input pulley 121a Pulley shaft 122 Exhaust input gear Case 122a Bebe Gear mechanism 123 Coupling 125 Tip chain drive sprocket 126 Root chain drive sprocket 127 Root chain input shaft 128 Tip chain input sprocket 129 Root chain output shaft 130 End roller 131 End roller 135 Transmission case 140 Open / close handle 141a, 141b Lock pin 142a, 142b hook 143a, 143b remover 145 fulcrum (rotating shaft) 147 connecting member 150a, 150b lock part

Claims (1)

A handling chamber (66) around which a barrel (69) for threshing the grain from the cereal bowl is mounted;
A sorting chamber (50) that is provided below the handling chamber (66) and that sorts an object to be processed falling from the handling chamber (66) while conveying it backwards;
A dust removal treatment chamber (68) around a dust removal treatment cylinder (71) that takes over and treats the workpiece that has reached the end of the conveyance direction of the handling chamber (66);
A waste disposal unit (95) for treating the waste after being threshed by the handling drum (69);
A waste transporting device (110, 111) for transporting waste from the end of the handling cylinder (69) in the transport direction to the waste processing unit (95);
The waste transporting device provided between the shaft (71c) of the dust removal treatment cylinder (71) and the shaft (69b) of the handling cylinder (69) and at a position above the shaft (69b) of the handling cylinder (69). A transmission mechanism (122a) for driving (110, 111) ,
Rotating body (120) pivotally attached to a driving cylinder (69b) on the terminal end side in the conveying direction of the object to be processed of the processing cylinder (69) and a driving rotating body (121) for driving the transmission mechanism section (122a) The endless belt (106) is passed over to the threshing device drive engine power from the barrel (69b) to the transmission mechanism (122a),
The rotation direction of the endless belt (106) is set so that the upper part (106a) of the winding region of the endless belt (106) rotates in the downward inclination direction, and the winding region of the endless belt (106) The lower part (106b) of the winding area of the endless belt (106) is arranged in an upward inclined direction in such a manner that the dust placed on the upper part (106a) is dropped downward and sent to the sorting chamber (50). The rotation direction of the lower part (106b) of the winding region of the endless belt (106) is set to be substantially the same as the conveying direction of the waste by the waste transporting device (110, 111). Threshing device characterized by setting .

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