JP4005965B2 - Combine - Google Patents

Description

  In the combine, the present invention can set the discharge height high without damaging the grains in the grain tank, and the upper side of a large storage container or bag provided on a loading platform such as a truck stopped on a farm road or the like. The present invention relates to a grain discharge structure capable of discharging a large amount of grain from the grain.

  Conventionally, the grain has been discharged by a screw-type discharge auger or bagging device. Among these, in the screw-type discharge auger, the grain is once lifted from the side of the grain tank, and then conveyed in the same screw-type discharge auger extending substantially horizontally, and the tip of the discharge auger Was discharged to trucks. Also, in the bagging device, after the selected grain has been cerealed, it passes through a small tank called top sucker and is dropped into the grain bag in the bagging device provided on the side of the machine body. I was doing. And in the case of beans such as soybeans that are soft in grain and easily contaminated with foreign matters such as soil, the discharging operation after cutting, threshing and sorting is performed by the screw type auger with a long conveying distance. In order to minimize grain fouling and damage, it is easy to damage the grain and cause a drop in grain quality. I was trying to suppress it.

JP-A-7-99826 Japanese Patent Laid-Open No. 5-282626 Japanese Utility Model Laid-Open No. 1-137787

  However, in the long, screw-type discharge auger or wide bagging device provided on the top or side of the airframe, the height and width of the airframe are large, and in the case of soft grains such as soybeans, There was a problem that the airframe was easily damaged and the space required for storing the airframe also increased. In particular, the bagging apparatus has a problem that a large amount of grains cannot be discharged directly to a loading platform such as a truck stopped on an agricultural road or the like, resulting in poor work efficiency. In addition, a structure that can transport and discharge such grains with a simple drive system and with high efficiency is strongly required from the viewpoint of cost and workability.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
A bucket type grain discharging device (13) is erected on the back of the grain tank (5), and the grains stored in the grain tank (5) are converted into the bucket type grain discharging device (13). In the combine that is picked up by the bucket (66) and discharged from above and transferred to the belt-type transport device (70), the grain discharging device (13) is tilted rather than vertically arranged in an upright position, on the chassis frame side of the grain discharge device (13) (100), and fulcrum shaft (104) is provided, conveyance of the belt type for discharging the grains to the outside on said pivot fulcrum shaft (104) A swivel base (105) that supports the device (70) so as to be pivotable in the horizontal direction is provided, and left and right side plates (105a and 105b) are provided on both sides of the swivel base (105), and the left and right side plates (105a and 105b) are provided. pivotably supported belt conveyor apparatus (70) up and down That it is provided with a support shaft (57, 58).

In the present invention, as described above, the bucket type grain discharging device (13) is erected on the back of the grain tank (5), and the grains stored in the grain tank (5) are converted into the bucket type. In the combine which is picked up by the bucket (66) of the grain discharging device (13) of the grain and discharged from above and transferred to the belt type conveying device (70), the grain discharging device (13) is not vertical but inclined. The swivel fulcrum shaft (104) is provided on the chassis frame (100) on the side of the grain discharging device (13), and the grain is machined on the swivel fulcrum shaft (104). A swivel base (105) that supports the belt-type transfer device (70) that discharges to the outside so as to be turnable in the horizontal direction is provided, and left and right side plates (105a and 105b) are provided on both sides of the swivel base (105). Belt side conveyor (70) on side plates (105a, 105b) Is provided with the support shaft (57, 58) rotatably supporting the upper and lower, in which the following effects.
1stly, the grain in a grain tank can be discharged | emitted from a grain discharging apparatus upper direction with the some bucket provided in the bucket type discharge conveyor.
Moreover, the grain can be directly discharged to a loading platform such as a truck parked on an agricultural road or the like by using a conveyor device constituted by a belt-type conveyor.

  Secondly, the belt-type transport device 70 can be swung and raised and lowered, and the degree of freedom of swirling is greatly improved.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall side view of a combine according to the present invention, FIG. 2 is also a plan view, FIG. 3 is also a rear view, FIG. 4 is a rear side view showing the grain discharge path, and FIG. FIG. 6 is a plan view of the rotational configuration of the grain tank, FIG. 8 is a side view of the inheritance portion, and FIG. 10 is a side arrangement diagram showing the closed configuration of the joint, FIG. 11 is also a partial front sectional view, FIG. 12 is an overall side view of the belt-type conveying device, and FIG. 13 is a partial partial sectional plan view around the waste outlet. 14 is also a partial front sectional view, FIG. 15 is a side view of the discharge port of the belt-type transport device, FIG. 16 is an overall plan view showing the grain discharging operation status and the storage status, and FIG. It is a back surface partial sectional view which shows an attachment condition.

  First, the overall structure of the combine according to the present invention will be described with reference to FIGS. 1 to 4 and FIG. As shown in FIGS. 1 to 4, a chassis frame 100 is mounted on the crawler 1, a threshing unit 2 is mounted on the chassis frame 100, and a feeder chamber 3 is interposed in front of the threshing unit 2. The reaping part 4 is continuously provided, and a grain tank 5 is mounted on the lateral side of the threshing part 2, and an operation part 6 is continuously provided on the front side of the grain tank 5.

  Further, a swing sorting device 9 is disposed below the threshing section 2, and communicates with a terminal end portion of the first conveyor 8 laid horizontally below the swing sorting device 9 so as to communicate with a bucket type lift. A grain conveyor 7 is erected. In the cereal conveyor 7, a conveyor chain 16 is wound between sprockets 14 and 15 that are pivotally supported on the upper and lower parts, and a plurality of buckets 17 are arranged on the conveyor chain 16. Granules such as the first thing selected by the apparatus 9 are conveyed to an arc-shaped receiving part at the lower part of the cereal conveyor 7, and the granules from the receiving part are picked up by a bucket 17 on the conveyor chain 16 and lifted as it is. It is conveyed to the upper part of the grain conveyor 7.

  And the upper part of this cereal conveyor 7 is connected to the grain tank 5 via the connection pipe 68, and the refined grain conveyed to the grain tank 5 is blown off by a rotating leveling disk (not shown) or the like. The grain tank 5 is uniformly dispersed and can be evenly stored. A screw-type carry-out conveyor 11 is mounted on the lower basket 10 of the grain tank 5, and a terminal portion of the carry-out conveyor 11 is communicated with a lower part of the grain discharge device 13 via a inheritance case 12.

  Also in the grain discharging device 13, a bucket type discharging conveyor 56 is formed, and a conveyor chain 67 is wound between the sprockets 88 and 89 pivotally supported on the upper and lower portions of the discharging conveyor 56. A plurality of buckets 66 are arranged on the top so that the grains stored in the grain tank 5 can be discharged from above the grain discharging device 13.

  In this way, by connecting the lower part of the grain discharging device 13 to the bottom of the grain tank 5 and standing the grain discharging device 13 on the back of the grain tank 5, the space at the rear of the machine body is utilized. Compared to conventional long discharge augers and wide bagging devices provided on the top or side of the machine, the machine height and machine width can be reduced, preventing damage to the machine while the crop is running. The storage space of the fuselage is reduced.

  Then, below the outlet 13a of the grain discharging device 13, a belt type conveying device 70 capable of conveying the grain to the rear or the side of the machine body is disposed, and the container or truck at a far away position is disposed. Is also able to discharge large quantities of kernels. Furthermore, between the grain inlet 50 of the belt-type conveying device 70 and the outlet 13a of the grain discharging device 13, a relay conveying device 69 according to the present invention is communicated, from the outlet 13a. The discharged grain is guided to the grain inlet 50 by a rotating flat belt 90 or the like.

  The grain discharging device 13 is not vertically but tilted to the discharge port 13a side, and the grains picked up by the bucket 66 are relayed to the belt-type conveying device 70. When delivered to the transport device 69, it can be reliably discharged and dropped outward from the discharge port 13a.

  That is, the lower part of the grain discharging device 13 is connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back surface of the grain tank 5, and the outlet 13 a of the grain discharging device 13. In the combine provided with a belt type conveying device 70 capable of conveying the grain from the rear or side of the machine body, the grain discharging device 13 is tilted in the grain falling direction from the outlet 13a. Without providing an extra detour path, the grains can be delivered to the belt-type conveyance device 70 via a relay portion such as the relay conveyance device 69 by natural fall, and the belt-type conveyance device 70 can be transferred to the belt-type conveyance device 70. The grain delivery efficiency is greatly improved.

  Further, as shown in FIGS. 3 and 7, a pivot fulcrum shaft 107 is erected on the chassis frame 100, and the pivot fulcrum shaft 107 is supported by a support stay 108. A threshing unit 2, a swing sorting device 9, and the like are horizontally projected from a support case 55, and the support case 55 is placed and fixed on the chassis frame 100.

  In this way, the rear end portions of the upper and lower rotation stays 92 and 93 are rotatably fitted on the rotation fulcrum shaft 107 that is firmly supported by the chassis frame 100 and the support stay 108. The distal ends of the stays 92 and 93 are connected and fixed to the back surface of the grain tank 5 so that the grain tank 5 can be rotated from the position 62 to the position 63 about the rotation fulcrum shaft 107. Yes. Thereby, the grain tank 5 can be opened quickly and reliably, and the maintenance management work inside the combine is facilitated.

  Next, the structure of the relay conveying device 69 according to the present invention will be described with reference to FIGS. 3 to 7 and FIG. In the intermediate transfer device 69, as shown in FIGS. 4 to 6, a communication path 81a is continuously provided on the side of the discharge port 13a, and a square pipe-shaped intermediate case 81 projects rearward from the connection portion 81a. A conveying portion 31 is formed at the lower part of the intermediate case 81.

  In the transport portion 31, the drive shaft 19 is pivotally supported between the left and right side plates on the transport start end side of the relay case 81, and the drive pulley 20 is fitted and fixed to the drive shaft 19. Similarly, a driven shaft 21 is pivotally supported between the left and right side plates on the conveyance end side of the relay case 81, and a driven pulley 22 is fitted and fixed to the driven shaft 21, and the driven pulley 22 and the driving pulley 20. A flat belt 90 is wound between the two.

  The rear driven shaft 21 as viewed from the drive shaft 19 is disposed at a low position by the depression angle 23, and even when the grain discharging operation is performed on an inclined land where the rear of the combine becomes higher, Since the driven shaft 21 side that rolls down can be set low, the grain 18 that has rolled down on the inclined bottom plate 81b from the discharge port 13a does not return to the connecting path 81a side, but moves on the driving flat belt 90 on the conveyance end side. It is smoothly conveyed toward

  In other words, since the relay conveying device 69 is provided at a lower position on the conveyance end side than the conveyance start end side, the flat belt 90 is maintained in a posture inclined to the conveyance end portion side even in an inclined place where the rear of the combine becomes higher. Therefore, the relay transport by the relay transport device 69 can be made more reliable.

  Further, as shown in FIGS. 5, 6, and 9, the flat belt 90 is not provided with a transport plate 47a that stands upright on the outer peripheral surface of the transport belt 47 of the belt-type transport device 70. . This is because in the case of the relay conveying device 69, the conveying terminal side does not rise as much as the belt type conveying device 70. As described above, if the conveying terminal side is arranged in a low position in advance, the grain This is because the grains can be prevented from returning.

  Furthermore, the conveyance width 37 of the flat belt 90 is set wider than the conveyance width 38 of the conveyance belt 47, and a large grain storage space is formed in the relay case 81. For this reason, between the bucket-type discharge conveyor 56 in the grain discharge device 13 and the belt-type transfer conveyor 54 in the belt-type transfer device 70, the grain transfer speed is large due to the difference in the transfer method. Even when a difference occurs or when the amount of stored grains in the grain tank 5 varies greatly at the start or end of pruning, the internal space of the relay transfer device 69 functions as a buffer for the flow of grains. To do.

  That is, the relay conveying device 69 has a conveying portion 31 composed of a flat belt 90 or the like that does not have a protruding portion such as a conveying plate 47 a, and the conveying width 37 of the conveying portion 31 is the same as that of the belt-type conveying device 70. Since it is configured to be wider than the conveyance width 38 of the conveyance unit, the conveyance unit 31 is simplified to the extent that there is no protrusion, and the component cost can be reduced. Further, since it is not obstructed by the rotating protrusion, a scraper 25 or the like is attached in the vicinity of the flat belt 90, and the conveying surface can be constantly cleaned to minimize grain contamination and damage. As a result, it is possible to reduce the size of the connecting portion 106 and to further reduce the size and weight of the combine. Moreover, since the conveyance width 37 of the conveyance part 31 is wider, the relay conveyance device 69 functions as a buffer that keeps the grain flow constant, and can prevent the occurrence of grain clogging.

  As shown in FIGS. 3, 6, and 7, the right side surface of the connecting path 81 a of the relay case 81 of the relay transport device 69 is fixed in communication with the discharge port 13 a of the grain discharge device 13, and the relay case 81 The front right side is connected and fixed to the upper rear surface of the grain discharging device 13 via a cover 29 that also serves as a connecting member, and the relay conveying device 69 is securely fixed to the upper portion of the grain discharging device 13. It has become. Furthermore, the front surface of the grain discharging device 13 is fixed to the back surface of the grain tank 5. On the other hand, as described above, the grain tank 5 can be rotated from the position 62 to the position 63 with the rotation fulcrum shaft 107 as the center, and the relay conveying device 69 with the rotation fulcrum shaft 107 as the center. Can also be rotated together.

  Therefore, the driving force of the relay conveying device 69 can be always connected to the driving system in the grain tank 5, and each conveying device 11, 13, 69 can be driven by a single driving system. That is, the intermediate transfer device 69 can rotate integrally with the grain tank 5 and the grain discharge device 13 around a pivot fulcrum shaft 107 that is a fulcrum shaft protruding from the chassis frame 100 that supports the machine body. Therefore, the relay conveying device 69 can have the same drive system as the grain tank 5 and the grain discharge device 13, and the drive system can be simplified to reduce component costs and improve assembly and maintenance. Can be planned.

  Next, the driving force transmission configuration of the relay conveying device 69 and the belt-type conveying device 70 will be described with reference to FIGS. 4 to 6, 8, 9, 11, and 12. As shown in FIGS. 4 to 6, a connecting shaft 28 extends from the end of the drive shaft 19, a bevel gear 27 is fixed to the end of the connecting shaft 28, and the upper part of the grain discharging device 13. A bevel gear 26 is also fixed to the rear end of the pivot 30 that pivotally supports the sprocket 89. The bevel gear 26 meshes with the bevel gear 27, and the pivot 30 is coupled to the drive shaft 19. On the other hand, a sprocket 88 is fixed to the end of the conveyor shaft 11a of the carry-out conveyor 11, and is connected to the upper sprocket 89 via the conveyor chain 67 in the grain discharging device 13 as described above. Is coupled to the pivot 30.

  In such a configuration, the driving force transmitted from the engine (not shown) to the carry-out conveyor 11 through the transmission mechanism including the first clutch 118, the transmission gear 102, and the like is the conveyor shaft 11a → sprocket 88 → conveyor chain 67 → The sprocket 89 → the pivot shaft 30 → the bevel gear 26 → the bevel gear 27 → the connecting shaft 28 → the drive shaft 19 is transmitted to the drive pulley 20 in this order, and the flat belt 90 of the intermediate transfer device 69 is driven.

  That is, since the drive shaft 19 of the relay conveying device 69 is driven by the power transmitted from the carry-out conveyor 11 mounted on the bottom of the grain tank 5 via the drive system of the grain discharging device 13, the relay conveying device There is no need to provide a separate drive system 69, and the cost can be reduced by reducing the number of parts and the assemblability can be improved. Furthermore, it becomes easy to synchronize the carry-out speed of the belt-type transport device 70, the cerealing speed of the grain discharging device 13, and the transport speed of the relay transport device 69, and the belt-type transport device 70 is stable and free from grain clogging. A relaying process can be made possible.

  Here, as shown in FIGS. 11 and 12, the belt-type transport device 70 is externally covered with a square pipe-shaped transport case 33, and the transport start end side of the transport case 33 is between the left and right side plates. A drive shaft 38 is pivotally supported, and a drive pulley 39 is fitted and fixed to the drive shaft 38. Similarly, a driven shaft 40 is pivotally supported between the left and right side plates on the conveyance end side of the conveyance case 33, and a driven pulley 41 is fitted and fixed to the driven shaft 40. The driven pulley 41 and the drive pulley A conveyor belt 47 is wound around the belt 39.

  Conveying plates 47a, 47a,... Are erected on the outer peripheral surface of the conveying belt 47 at predetermined intervals. Grains are stored between the conveying plates 47a, 47a,. Even when the side rises and the inclination of the upper conveying surface increases, the grains are prevented from rolling back. Moreover, the grain inflow port 50 opened upward is formed in the conveyance start end side of the conveyance case 33, and the said joint part 106 containing this grain inflow port 50 is formed in the conveyance start end side upper side.

  A hydraulic motor 32 is fixed in the vicinity of the conveyance start end side, and a drive pulley 32b is fixed to a drive shaft 32a extending laterally from the hydraulic motor 32. The drive pulley 32b, A drive belt 34 is wound around the input pulley 35 fixed to the end of the drive shaft 38, and the driving force from the hydraulic motor 32 is transmitted to the drive shaft 38 via the input pulley 35, The conveyance belt 47 of the belt-type conveyance device 70 is driven. In this way, the belt-type transport device 70 has a drive system that is independent of the relay transport device 69.

  That is, since the relay conveying device 69 has a drive system different from that of the belt-type conveying device 70, even when the grain tank 5 is configured to be open for maintenance management work, the relay conveying device 69 is driven from the relay conveying device 69. There is no need to provide a complicated transmission mechanism for transmitting force to the belt-type conveyance device 70, and the conveyance belt 47 of the belt-type conveyance device 70 can be freely driven at any time with a simple configuration, thereby reducing the number of parts. This can reduce costs and improve assembly.

  When the relay conveying device 69 configured as described above is interposed between the grain discharging device 13 and the belt-type conveying device 70 as shown in FIGS. The grain 18 discharged from the outlet 13a rolls gently on the flat belt 90 without bouncing on the inclined bottom plate 81b of the communication path 81a. Then, the grain 18 is transported as it is or is rolled to the transport end located at a position away from the discharge port 13a, and the grain 18 that is leveled while being transported is the grain flow lower port 81c. From the lower grain inflow port 50, the belt-type conveying device 70 falls on the conveying belt 47 having elasticity.

  That is, the lower part of the grain discharging device 13 is connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back surface of the grain tank 5, and the outlet 13 a of the grain discharging device 13. In a combine in which a belt-type transport device 70 capable of transporting grains from the rear or side of the machine body is disposed, the grain inlet 50 of the belt-type transport device 70 and the discharge of the grain discharge device 13 Since the relay conveying device 69 is interposed between the outlet 13a, the grain inlet 50 of the belt-type conveying device 70 can be arranged at a position separated from the outlet 13a of the grain discharging device 13, and the belt type The degree of freedom of the arrangement position of the conveying device 70 increases. Moreover, the rebound which occurs at the time of the input of the grain from the grain discharging device 13 is suppressed, and the variation in the transport amount is reduced, thereby enabling stable grain transport. Furthermore, the collision between the grains at the time of the introduction of the grain 18 or between the grain and the hard wall surface can be prevented, and the quality and quality of the grain can be further improved by reducing the contamination and damage of the grain. . Further, if necessary, the swivel fulcrum shaft 104 of the belt-type transport device 70 can be disposed in the vicinity of the machine body end, and a large storage space can be secured by making maximum use of the space above the machine body. Therefore, the long-distance conveying function can be sufficiently exhibited by making the conveying device 70 longer.

  Next, the structure of the joint portion 106 will be described with reference to FIGS. In the transfer part 106, the lower part of the grain flow lower port 81 c of the relay connection device 69 is narrow, and conversely, the upper part of the grain inlet 50 of the belt-type transfer device 70 is narrow. The delivery of the grain at the time of the grain inheritance to the transfer device 70 of the type is ensured.

  Furthermore, the connection part of the grain inlet 50 and the conveyance case 33 is made into the constricted part 50a narrowed down narrowly. That is, between the lower part of the grain inlet 50 and the transport case 33 of the belt-type transport device 70, the constricted part 50a is provided, so that an extra gap is not formed in the connecting part. It prevents grain accumulation in the gaps and improves grain transport efficiency.

  Further, an umbrella-shaped cover member 83 is fitted and fixed to the outer periphery of the grain flow lower port 81 c, and dust or the like that has fallen from above by the cover member 83 passes over the cover member 83 from the grain inlet 50. Also, it falls to the outside and prevents entry of dust or the like into the grain inlet 50.

  That is, since an umbrella-shaped cover member 83 that prevents entry of dust and the like into the grain inlet 50 is provided on the outer periphery of the grain flow lower port 81c, which is the terminal portion of the relay conveying device 69, dust on the conveyor conveyer 54 is provided. Etc. can be prevented in advance, and the quality and quality of the grain can be improved by suppressing the fouling and damage of the grain 18.

  Further, a gap 91 is provided between the lower end of the grain flow lower port 81c and the upper end of the grain flow inlet 50, so that the relay transfer device 69 can be easily detached from the transfer part 106 when the grain tank 5 is opened. In addition, an easily deformable guide member 82 made of a skirt-like rubber or the like squeezed downward is fitted and fixed to the lower end of the grain flow lower opening 81c. The guide member 82 closes the gap 91, and It is inserted from above so as to overlap the grain inlet 50.

  That is, a gap 91 is provided between the grain flow lower port 81c, which is the terminal portion of the relay conveying device 69, and the grain inlet 50 of the belt-type conveying device 70, and the grain 18 is belt-typed in the gap 91. A skirt-shaped guide member 82 to be introduced into the grain inlet 50 of the transport device 70 is provided. The guide member 82 overlaps with the grain inlet 50 and the guide member 82 located at the overlapping portion Since it is configured to be easily deformable at the time of engagement / disengagement between the grain flow lower port 81 c and the grain inlet 50, the grain tank 5 can be quickly and without interfering with the belt-type transport device 70 by the gap 91. The guide member 82 that can be reliably opened and easily deformed can prevent dust and the like from entering the conveyer 54 and can prevent the grain 18 from being damaged or damaged.

  When the splicing portion 106 having the above-described configuration is formed between the relay conveying device 69 and the belt-type conveying device 70, the grain 18 discharged from the grain flow outlet 81c is guided by the guide member 82. It flows into the grain inflow port 50 while being guided to the transport belt 47 and stays on the transport belt 47 without being retained in the connection portion or the like, and is transported to the transport end as it is. At this time, the guide member 82 and the cover member 83 can prevent dust and the like from entering the conveyor 54. When the grain tank 5 is opened, the guide member 82 provided at the grain flow lower port 81c can be easily deformed even when it hits the grain inlet 50 during rotation and can be easily detached from the grain inlet 50. On the contrary, the guide member 82 can be easily deformed and engaged with the grain inlet 50 when the grain tank 5 is housed.

  That is, the grain flow lower port 81c, which is the terminal portion of the relay conveying device 69, is configured to be detachable from the grain inlet 50 of the belt-type conveying device 70, so that maintenance work can be performed. Even when the grain tank 5 has a structure that can be opened, the relay conveying device 69 can be rotated together with the grain tank 5 while being independent of the belt-type conveying device 70. 5 The structure for opening can be simplified.

  Next, the swiveling / vertical turning configuration and detailed structure of the belt-type transport device 70 will be described with reference to FIGS. 1, 3 to 5, and 9 to 16. As shown in FIGS. 3, 5, and 11, a pivot fulcrum shaft 104 is erected on the chassis frame 100, and the pivot fulcrum shaft 104 is supported by upper and lower support stays 109 and 110. 110 is horizontally projected from a support case 55 in which the threshing unit 2 and the swing sorting device 9 are provided, and the support case 55 is mounted and fixed on the chassis frame 100.

  As described above, the rotation member 24 is rotatably fitted on the upper portion of the pivot fulcrum shaft 104 that is firmly supported by the chassis frame 100 and the support stays 109 and 110. A U-shaped swivel base 105 opened upward in a sectional view is placed and fixed, and the swivel base 105 can be swiveled horizontally around the swivel fulcrum shaft 104.

  The left and right side plates 105a and 105b of the swivel base 105 are provided with pivot shafts 57 and 58, respectively, and the pivot shaft 58 of these pivots the drive shaft 38 of the belt type conveying device 70. The support case 57 is connected and fixed to the right side plate of the conveyance case 33 that is supported, and the support shaft 57 is connected and fixed to the outer surface of the cover 42 that is provided on the left side plate of the transfer case 33 and covers the input pulley 35. The transfer device 70 can be rotated up and down around the support shafts 57 and 58.

  A fixing member 111 is fixed to the side surface of the rotating member 24. A cylinder support shaft 112 is provided on the fixing member 111, and a base portion of the elevating cylinder 113 is supported on the cylinder support shaft 112. The tip portion of the piston rod 113 a extended from the elevating cylinder 113 is rotatably connected to the right side plate of the transfer case 33.

  Further, a swing motor 114 is fixed to the back surface of the support case 55 above the support stay 109 by a fixture 115, and a drive shaft 114a extends upward from the swing motor 114. A swivel drive gear 116 is fixed to the front portion, and the swivel drive gear 116 meshes with a swivel driven gear 117 that is externally fitted and fixed to the lower surface of the swivel member 24.

  In such a configuration, as shown in FIGS. 1, 5, 10, and 16, the swivel raising / lowering operation levers 51 and 52 provided at the operation unit 6 and the front part of the belt-type conveyance device 70 are operated. As a result, the swing motor 114 and the lift cylinder 113 are driven, and the belt-type transport device 70 rotates up and down around the support shafts 57 and 58 like a horizontal position 48 ⇔ ascending position 49, or the swing support shaft 104. As a result, the vehicle can be turned horizontally such as a storage position 43, an auto setting position 44, and a right side position 45, and the turning position and the raising / lowering position can be freely set.

  Further, the turning fulcrum shaft 104 is arranged at the center of the rearmost part of the combine machine body so that it does not protrude outward from the machine body even when the long belt type conveying device 70 is stored in the storage position 43. Yes.

  That is, the lower part of the grain discharging device 13 is connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back surface of the grain tank 5, and the outlet 13 a of the grain discharging device 13. In the combine in which the belt type conveying device 70 capable of conveying the grain 18 from the rear side or the side of the machine body is disposed, the belt type conveying apparatus 70 is centered on the turning fulcrum shaft 104 disposed substantially at the center of the rear side of the machine body. Therefore, the space above the entire length of the combine main body can be effectively used as a storage space for the belt-type transport device 70, and it is not necessary to provide a folding mechanism for the belt-type transport device 70. Moreover, it becomes a layout advantageous also for grain delivery with the grain discharging apparatus 13 located behind the grain tank 5, and simplification of the whole grain discharging mechanism can be achieved.

  The turning motor 114 and the lifting cylinder 113 are connected to a controller (not shown), and the controller is also connected to the turning lifting operation levers 51 and 52. The belt-type conveying device 70 automatically turns to the auto-set position 44 at the start of the grain discharging operation, and automatically returns to the storage position 43 after the grain discharging operation is completed. ing.

  Further, as shown in FIGS. 9 to 11, fulcrum shafts 105c, 105d, 105e, and 105f are projected outward from the upper portions of the left and right side plates 105a and 105b of the swivel base 105, and the fulcrum shaft 105c of these is supported. In 105d, a U-shaped closing cover member 84 is pivotally supported so as to cover one side upper part of the grain inlet 50, and similarly, the other side upper part of the grain inlet 50. A U-shaped closing cover member 85 is pivotally supported by the fulcrum shafts 105e and 105f so as to be able to rotate. A biasing spring such as a torsion spring (not shown) is externally fitted and fixed to any of the fulcrum shafts 105c, 105d, 105e, and 105f, and one end of the biasing spring is connected to the closing cover member 84/85 side, The closing cover members 84 and 85 are constantly urged toward the inner grain inlet 50 by the elastic force of the urging spring. In addition to the urging spring, an elastic body such as rubber may be externally fitted to the outside of the closing cover members 84 and 85 to urge the closing cover members 84 and 85 to the inside. It is not limited.

  Here, as described above, the belt-type transport device 70 is pivoted up and down inside the swivel 105 around the support shafts 57 and 58 provided on the swivel 105, while the closing cover member 84. Reference numeral 85 denotes a fulcrum shaft 105 c, 105 d, 105 e, and 105 f provided on the same swivel base 105, and is rotated back and forth outside the swivel base 105. Therefore, the closing cover members 84 and 85 are independent of the vertical rotation of the belt-type transport device 70 and can maintain the center position of the front and rear rotation.

In such a configuration, when the belt-type transport device 70 is in the horizontal position 48, the closing cover members 84 and 85 are configured so as to cover the range from the lower part of the grain flow lower port 81C to the grain inlet 50 from the front and rear. Is pivotally supported so as to be pivotable back and forth.
Even if the belt-type transport device 70 is rotated from the horizontal position 48 to the raised position 49, the closing cover members 84 and 85 are also rotated back and forth by the urging means such as the urging spring. Among them, the closing cover member 84 closes the opening portion of the grain inlet 50 that is largely opened.

  In other words, below the grain flow lower port 81c, which is the terminal portion of the relay conveying device 69, the closing cover members 84 and 85 that can close the grain inlet 50 that is opened when the belt-type conveying device 70 moves up and down. The closing cover members 84 and 85 have fulcrum shafts 105c, 105d, 105e, and 105f that are independent of the vertical movement of the belt-type transport device 70, and the fulcrum shafts 105c, 105d, 105e, and 105f are Since it is fixed to the swivel base 105 on the swivel fulcrum shaft 104 of the belt-type transport device 70, the intrusion of dust or the like into the grain inlet 50 in the transfer portion 106 to the belt-type transport device 70 is prevented from being belt-type. Regardless of the posture of the conveying device 70, it is possible to reliably prevent the grain 18 from being soiled or damaged, and to further improve the grain quality.

  As shown in FIGS. 12 to 14, a base portion of a scraper 53 having a square shape in plan view is fixed to the inner surface of the side plate of the conveyance case 33 in the vicinity of the driving pulley 39 and the driven pulley 41, and the lower side of the scraper 53 is In addition, a bag 33e projecting outward is formed on the side plate of the transport case 33 in the vicinity of the tip of the scraper 53. As the conveyance belt 47 advances, dust or the like accumulated on the side is pushed laterally along the path indicated by the arrow 59, and then falls to the bottom plate of the conveyance case 33 through the bag portion 33e.

  A dust removal port 33a is opened in the bottom plate of the transport case 33, and a cleaning lid 36 is detachably attached to the waste removal port 33a, and dust falling from the bag portion 33e, The dust is accumulated in the dust outlet 33a, and the cleaning lid 36 can be removed to remove dust and the like from the dust outlet 33a.

  That is, the lower part of the grain discharging device 13 is connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back surface of the grain tank 5, and the outlet 13 a of the grain discharging device 13. In a combine in which a belt-type transport device 70 capable of transporting grains 18 from the rear of the machine body or to the side is disposed, in the vicinity of a drive pulley 39 and a driven pulley 41 that are conveyor supports of the belt-type transport device 70 In addition, the scraper 53 is disposed in the transport case 33 below the scraper 53 so that a waste opening 33a for maintenance and the like can be opened and closed. By simply removing the cleaning lid 36, it is possible to easily remove internal dust, dirt and dust, residual grains, etc. It is possible to further improve the quality.

  As shown in FIGS. 12 and 15, a mounting plate 64 is fixed to the side surface of the transport case 33 on the transport terminal side of the belt-type transport device 70, and a slide bar 65 slides back and forth on the mounting plate 64. It is provided as possible. A support plate 61 is fixed on the transport start end side of the slide bar 65, and the driven shaft 40 of the transport conveyor 54 is pivotally supported on the support plate 61, while on the transport end side of the slide bar 65. A tension spring 71 is externally fitted between the positioning bolt 72 provided at the end of the slide bar 65 and the mounting plate 64, and the support plate 61 is conveyed by the elastic force of the tension spring 71. It is pushed out with a constant force toward the end side. As a result, a tensioning mechanism 60 is constructed in which the support plate 61 is always pulled toward the conveyance end side with a constant tension. Between the driven pulley 41 of the driven shaft 40 supported by the support plate 61 and the drive pulley 39. The conveyor belt 47 wound around is securely stretched to prevent slack.

  Then, by rotating the positioning bolt 72 and moving it on the slide bar 65 to adjust the position of the driven pulley 41, the inner peripheral end portion 33c on the conveyance start end side at the discharge port 33b of the conveyance case 33 becomes the conveyance belt. 47 is provided so as to coincide with the end portion 73 on the conveyance end side in the rotation locus 47b of the conveyance plate 47a on the 47, or to be spaced outward from the end portion 73. Further, below the end portion 73, an inclined portion 33d that is lowered toward the inner peripheral end portion 33c of the discharge port 33b is formed.

  In such a configuration, the conveying belt 47 is not visible from the discharge port 33b, and the conveyed grain is always discharged once it hits the conveying case 33, and the protruding amount of the conveying belt 47 is small. Thus, a large space can be secured above the discharge port 33b. Further, even if there is a grain turning around by the conveyor belt 47, as long as the grain is conveyed to the range 74, the grain rolls on the inclined portion 33d and is reliably discharged from the discharge port 33b.

  That is, the lower part of the grain discharging device 13 is connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back surface of the grain tank 5, and the outlet 13 a of the grain discharging device 13. In the combine in which the belt type conveying device 70 capable of conveying the grain 18 from the rear of the machine body or to the side is disposed, the inner peripheral end portion 33c on the conveying start end side at the discharge port 33b of the belt type conveying device 70 is In addition, the end portion 73 of the transport conveyor 54 coincides with the end portion 73 or is provided to be spaced outward from the end portion 73. Since the inclined part 33d that can roll to the end part 33c is provided, the grain does not fall directly from the outlet 33b and scatters around it, and a large space can be secured above the outlet 33b. The grain rolls on the inclined part 33d. For Kunar, it is possible to reliably prevent grain clogging, the efficiency of grain discharge work is to significantly improve.

  Also, as shown in FIGS. 4, 5, 12, 15, and 17, the piezoelectric type is provided above the conveying unit 31 of the relay conveying device 69 and above the discharge port 33b of the belt-type conveying device 70, respectively. A first clogging sensor 94 and a second clogging sensor 97 are provided.

  Of these, the first clogging sensor 94 is attached to the inside of the attachment case 95 projecting outward from the side surface of the intermediate case 81 so as to incline with respect to the grain flow downward direction, as shown in FIGS. It is protected from the grain 18 that flows down, and it is prevented from being damaged by the collision of the grain, or misidentifying that the grain clogging has occurred by detecting the impact force at the time of the collision. . A sensor surface 94a capable of detecting pressure is provided, and when the grain 18 is accumulated up to the grain full line 96 due to clogging, the weight of the grain placed on the sensor surface 94a is detected, and this detection signal is And transmitted to a controller (not shown) connected to the first clogging sensor 94.

  On the other hand, as shown in FIGS. 12 and 15, the second clogging sensor 97 is fixed to a side surface of a mounting base 98 that is provided with an inclined mounting surface at the inner peripheral end portion 33 c of the transport case 33. And the sensor surface 97a which can detect pressure is provided, and when discharge of the grain 18 progresses to containers, such as a container and a truck, from the discharge port 33b, the upper surface of the accumulated grain 18 will rise gradually in a container. Then, the grain 18 flows into the belt-type conveyance device 70 from the discharge port 33b and pushes up the sensor surface 97a from obliquely below. A detection signal generated by the pressure at this time is transmitted to a controller (not shown) connected to the second clogging sensor 97.

  Further, a first clutch 118 is provided between the transmission gear 102 of the carry-out conveyor 11 of the grain tank 5 and the engine, and a second clutch 119 is also provided in the hydraulic motor 32 of the belt-type transfer device 70. These clutches 118 and 119 are both connected to the controller.

  In such a configuration, when the first clogging sensor 94 is turned “ON” and occurrence of clogging in the relay conveying device 69 is detected, the first clutch 118 is first turned “off” and then the second clutch 119 is turned on. Is set to “cut” to prevent residual grains in the belt-type conveying device 70. In addition, when the second clogging sensor 97 is turned “ON” and the clogging of the discharge port 33b due to the inflow of the grain into the belt type conveyance device 70 is detected, both the first clutch 118 and the second clutch 119 are simultaneously performed. It is set to “cut” so that the grain does not flow into the belt-type conveying device 70 any more.

That is, in the relay conveying device 69 and the belt-type conveying device 70, the sensors 94 and 97 capable of detecting the grain clogging are provided on the grain discharge side, so that it is possible to appropriately deal with depending on the situation of the grain clogging. It can be restored in a short time, and the drop in the efficiency of the grain discharging operation can be prevented. In this reference example, the sensor is a piezoelectric sensor, but it may be a potentiometer sensor or a non-contact optical sensor as long as it is a means capable of detecting the accumulation of the grain 18 due to clogging. It is not something.

1 is an overall side view of a combine according to the present invention. It is also a plan view. It is a back view similarly. It is a rear part side view which similarly shows a grain discharge path | route. It is side surface partial sectional drawing of a relay conveyance apparatus periphery. It is a plane partial sectional view similarly. It is a plane arrangement | positioning figure which shows the rotation structure of a grain tank. It is a side view of a connection part. It is side surface sectional drawing similarly. It is a side surface arrangement | positioning figure which shows the obstruction | occlusion structure of a inheritance part. It is a front partial sectional view similarly. It is a whole side view of a belt type conveyance device. It is a partial plane sectional view of the vicinity of the waste opening. It is a front partial sectional view similarly. It is a side view of the discharge port of a belt type conveyance device. It is the whole top view which similarly shows a grain discharge | emission work condition and a storage condition. It is a back surface partial sectional view which shows the attachment condition of a clogging sensor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 5 Grain tank 13 Grain discharge apparatus 32 Motor 33 Conveyance case 33b Discharge port 33d Inclination part 47 Conveyance belt 54 Conveyor 56 Discharge conveyor 60 Tensioning mechanism 70 Belt-type conveyance apparatus

Claims (1)

A bucket type grain discharging device (13) is erected on the back of the grain tank (5), and the grains stored in the grain tank (5) are converted into the bucket type grain discharging device (13). In the combine that is picked up by the bucket (66) and discharged from above and transferred to the belt-type transport device (70), the grain discharging device (13) is tilted rather than vertically arranged in an upright position, on the chassis frame side of the grain discharge device (13) (100), and fulcrum shaft (104) is provided, conveyance of the belt type for discharging the grains to the outside on said pivot fulcrum shaft (104) A swivel base (105) that supports the device (70) so as to be pivotable in the horizontal direction is provided, and left and right side plates (105a and 105b) are provided on both sides of the swivel base (105), and the left and right side plates (105a and 105b) are provided. pivotably supported belt conveyor apparatus (70) up and down Combine, characterized by that providing the support shaft (57, 58).

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