JP4069095B2 - Combine - Google Patents

Description

  The present invention provides a combine provided with a grain discharger that can set the discharge height at a high position without damaging the grains in the grain tank. The present invention relates to a technology that can be directly discharged from above into a large storage container or bag provided on a loading platform such as a truck that has stopped.

  Conventionally, the grain has been discharged by a discharge auger or a bagging device. Among these, in the discharge auger, the grain was once cerealed from the side surface of the grain tank, then transported through the discharge auger extending substantially horizontally, and discharged from the tip of the discharge auger to a truck or the like. 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. Therefore, the grain is easily damaged and the quality of the grain is deteriorated. Conventionally, a bean-only combine or a combination with other grains equipped with the bagging device is used to minimize the contamination and damage of the grain. I was trying to suppress it. However, in this bagging device, since the grain bag cannot be made so large, it has to be divided into a large number of bags, and it takes time and labor to carry out the bagging and transporting work, and the work efficiency Was bad. Therefore, the present inventors provide a grain discharging device that communicates the lower part with the grain tank at the rear of the machine body, and conveys the grain upward by a discharge conveyor such as a bucket conveyor in the grain discharging device. It can be discharged. Furthermore, this grain discharging device can be tilted with a cylinder or the like, or an attachment capable of guiding the grain downward and sideways is attached to the outlet of the grain discharging device to widen the dischargeable range. ing.

Japanese Utility Model Laid-Open No. 1-137787

  However, the height of a farm road with a truck is higher than that of a farm with a combine, and there are many obstacles such as ridges and gutters between the farm and the farm road. Grain transport up to a long time requires a considerable transport height and transport distance, and even if any of the above-mentioned fixed, tilting, and attachment-type grain discharging devices is used, the direct discharge of the grain to the platform such as a truck is not possible. There was a problem that it was difficult. In addition, there is a strong demand for further improvement in grain quality by reliably preventing the grain from being damaged or damaged during transportation to the discharge port.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
The bottom of the grain tank (5) communicates with the lower part of the bucket-type grain discharge device (13), the grain discharge device (13) is erected at the rear of the machine body, and stored in the grain tank (5). the cereal kernels, in combined that can be discharged from the bucket grain discharge device for formula (13) above the outlet (13a), the outlet of the grain discharge device for the bucket (13) and (13a) , Communicating with the grain inlet (50) of the belt-type transport device (70) for discharging the grain out of the machine, the belt-type transport device (70) being capable of turning and up-and-down turning, The rotation center axis (125) of the belt type conveying device (70) and the rotation center axis (126) for rotating the grain tank (5) to the side are made to coincide with each other. A fulcrum shaft (104) is erected on the dynamic shaft core (125, 126) from the chassis frame (100). A support (24) is rotatably supported on the shaft (104), and the support (24) is rotatably supported on the pivot center axis (125). The support box (24a) is fixed to the upper portion of the support box (24a), and a horizontal lifting shaft (49) is provided on the support box (24a). Is pivotally supported so that it can be moved up and down .

The present invention has the following effects.
As in claim 1, the bottom of the grain tank (5) communicates with the lower part of the bucket-type grain discharging device (13), and the grain discharging device (13) is erected at the rear of the machine body. (5) In the combine which enabled it to discharge | emit the grain stored inside from the discharge port (13a) above this bucket type grain discharge device (13), of a bucket type grain discharge device (13) The discharge port (13a) communicates with the grain inlet (50) of the belt-type transport device (70) that discharges the grains to the outside of the machine, and the belt-type transport device (70) rotates and moves vertically. A center axis (125) for turning and turning the belt-type conveying device (70), and a turning center axis (126) for turning the grain tank (5) to the side. And the fulcrum shaft (104) from the chassis frame (100) on the pivot axis (125, 126). The support (24) is rotatably supported on the fulcrum shaft (104), and the support (24) is rotatably supported on the pivot center axis (125). A support box (24a) is fixed to the upper part of the support (24), and a horizontal lifting shaft (49) is provided on the support box (24a), and the belt is supported by the lifting shaft (49). -Type transport device (70) is pivotally supported so that it can be turned up and down, so that the belt-type transport device can directly discharge the grain to the loading platform such as a truck parked on an agricultural road. Regardless of the rotation of the apparatus, the grain inlet is in substantially the same position, the structure from the outlet to the grain inlet can be simplified, and the parts cost can be reduced and the maintainability can be 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 a support structure of a belt type conveying device, and FIG. FIG. 6 is a rear view showing the state of the grain discharging operation to the left side, FIG. 7 is an enlarged side view of the connecting portion of the belt-type transport device, and FIG. 8 is the backward grain discharging. FIG. 9 is a rear view showing the state of the grain discharging operation to the right side, FIG. 10 is a block diagram of drive control of the belt-type transport device, and FIG. 11 is a grain transport showing the state of grain transport. is an enlarged side view of the parts, when FIG. 11 (a) to perform the grain conveyed by the conveyor upper, if performed in FIG. 11 (b) conveyor lower the grain transport, Figure 12 is pivot storage type of belt The side view which shows the storage condition of a conveying apparatus, FIG. 13 shows the grain discharge operation | work situation to the back similarly Rear view, FIG. 14 is a rear view similarly showing a grain discharge work status of the left side.

  First, the overall structure of the combine according to the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 3, 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 to the lower part of the grain discharge device 13 via a transfer case 12. .

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

  In addition, as shown in FIG. 4, the guide member 90 is arrange | positioned in the lower part of the grain tank 5, and it inclines so that it may become low toward the said inheritance case 12, and is arrange | positioned so that attachment or detachment is possible. The conveyance and the conveyance by the guide member 90 may be freely switched so that the carry-out means can be selected according to the situation. For example, when it is desired to sufficiently secure the storage capacity of the grain tank 5, it is desired to reduce damage to the grain as much as possible by carrying it by the carry-out conveyor 11 that does not substantially impair the tank capacity, and sliding down on the guide member 90. In this case, although the upper space is reduced and the tank capacity is slightly impaired, the conveyance is performed by the guide member 90 that hardly damages the grain.

  In this way, the lower part of the grain discharging device 13 is connected to the bottom of the grain tank 5, and the grain discharging device 13 is erected on the back of the grain tank 5, thereby utilizing the space at the rear of the machine body. Compared to the long discharge auger and wide bagging device provided on the upper or side of the conventional machine, the machine height and machine width can be reduced, and the damage caused by the machine while the crop is running is prevented. The storage space of the fuselage is reduced.

As shown in FIGS. 3 and 4, the upper part of the grain guide member 69 is connected to the outlet 13 a of the upper part of the grain discharging device 13 and is discharged from the outlet 13 a by the grain guide member 69. The grain to be conveyed is guided to the grain inlet 50 of the belt-type conveyance device 70 disposed below the discharge port 13a, and the conveyed grain is temporarily stored in the grain guide member 69. It can be stored.

With such a configuration, the grain conveyance is performed between the bucket-type discharge conveyor 56 in the grain discharge device 13 and the belt-type transfer conveyor 54 described later in the belt-type transfer device 70 due to the difference in the transfer method. Even when there is a large difference in speed or when the amount of stored grain in the grain tank 5 varies greatly at the start or end of pruning, the grain guide member 69 is used to buffer the grain flow. It can function as, and can make the flow of a grain constant, and can prevent the occurrence of grain clogging.

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 vicinity, in the combine provided with a belt-type transport device 70 capable of transporting the grain backward or sideways, the grain inlet 50 to the transport conveyor 54 of the belt conveyor of the belt- type transport device 70, and Since the grain guide member 69 which is a temporary storage part is interposed between the outlet port 13a from the discharge conveyor 56 of the bucket conveyor of the grain discharging device 13, the grain discharging device 13 and the belt type conveying device 70 are provided. This makes it possible to perform a stable grain discharging operation without any grain clogging, with a constant grain flow between them.

  As shown in FIGS. 4 and 5, a hollow fulcrum shaft 104 is erected on the chassis frame 100, and the fulcrum shaft 104 is supported by upper and lower support stays 111 and 112. Reference numeral 112 is horizontally provided 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.

A pivot member 92 is rotatably fitted on the fulcrum shaft 104 that is firmly supported by the chassis frame 100 and the support stays 111 and 112, and the upper and lower pivots extending horizontally from the pivot member 92. front portion of the stay 92a · 92b, the are connected fixed to the rear surface of the grain tank 5, the grain tank 5, around the rotation center axis 126 located on the axis of the fulcrum shaft 104, It can be rotated from position 62 to position 63.

  As described above, the grain tank 5 is configured to be rotatable by the fulcrum shaft 104 protruding from the machine body, so that the grain tank 5 can be opened quickly and reliably, and the maintenance management work inside the combine is easy. We are trying to make it.

Next, the structure of the belt type conveying apparatus 70 according to the present invention will be described with reference to FIGS. 3, 4, 6, and 7. FIG. As shown in FIGS. 3, 4, and 6, the belt-type transport device 70 receives the grain discharged from the discharge port 13 a and transports it to the middle part of the conveyor, and is transported to the middle part of the conveyor. A second conveying unit 22 that conveys the grains to the end of the conveyor, and a coupling unit 23 that rotatably connects the second conveying unit and the first conveying unit 21 and transmits the driving force of the conveyor. And a support 24 that supports the base of the first transport unit 21 so as to be rotatable up and down.

  First, the support 24 includes a support box 24a for inserting the base of the first transport unit 21, a rotating pipe 24b suspended from the lower surface of the support box 24a, and a swing fixed horizontally at the lower end of the rotating pipe 24b. The upper part of the rotating pipe 24b is externally supported by a support pipe 93a at the front part of the support stay 93, and the base part of the support stay 93 is connected and fixed to the upper part of the back surface of the grain tank 5. .

Further, the upper portion of the fulcrum shaft 104 that is firmly supported is inserted into the rotating pipe 24b so as to be slidable from below, and the support 24 is supported by the fulcrum shaft 104, and is supported by the support 24. In addition, the first transport unit 21, the connecting unit 23, and the second transport unit 22 can be reliably held. Then, located on the axis of the fulcrum shaft 104, about the rotation center axis 125 corresponding to the center axis of the pivot pipe 24b, so that pivotable belt conveyor device 70.

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 vicinity of the combine in which a belt-type transport device 70 capable of transporting grains backward or laterally is disposed, the grain tank 5 is rotated by a fulcrum shaft 104 projecting from a chassis frame 100 that supports the machine body. It is configured to be movable, and the belt type conveying device 70 can be supported by the fulcrum shaft 104, so that the discharging position can be stabilized without shaking the belt type conveying device 70 even during the grain discharging operation, The grain can be reliably discharged to the target position, and the scattering of the grain can be prevented.

  As shown in FIGS. 2, 4, 6, and 7, the outer side of the first transport unit 21 is externally covered with a square pipe-shaped first transport case 33. A drive shaft 38 is pivotally supported between the left and right side plates, and a drive pulley 39 is fitted on and fixed to the drive shaft 38. Similarly, a driven shaft 40 is pivotally supported between the left and right side plates on the transfer terminal side of the first transfer case 33, and a driven pulley 41 is fitted and fixed to the driven shaft 40. A first belt 46 is wound around the drive pulley 39.

  Further, conveying plates 46a, 46a,... Are erected at predetermined intervals on the outer peripheral surface of the first belt 46, and grains are stored between the conveying plates 46a, 46a,. As will be described later, even when the conveyance end side rises and the inclination of the upper conveyance surface increases, the grains are prevented from rolling back. Further, a plurality of belt support members 73 fixed inside the first transport case 33 are interposed between the upper and lower transport surfaces of the first belt 46, and the belt support member 73 causes the first belt 46 side to be disposed. Since the edge can be supported, the upper conveyance surface of the first belt 46 does not hang downward due to the weight of the grain, coupled with the effect of the conveyance plates 46a, 46a, The grain in the 1st conveyance part 21 can be conveyed stably and reliably from a conveyance start end part to a conveyance termination part.

  Further, a grain inlet 50 opened upward is formed on the conveyance start end side of the first conveyance case 33, and a fitting hole is opened above the support box 24a immediately above the grain inlet 50. A support portion 69a formed in a cylindrical shape is slidably inserted into the lower portion of the grain guide member 69 and is conveyed from the grain discharging device 13 through the support portion 69a. The grains are dropped into the conveyance start end of the first conveyance unit 21.

  In such a configuration, the grain discharged from the discharge port 13a flows down into the grain inlet 50 from the support portion 69a, falls on the first belt 46 erected on the conveying plate 46a, It is conveyed as it is toward the second conveyance unit 22.

At this time, the center axis 124 of the support portion 69a is configured to coincide with the rotation center axis 125 of the belt type transfer apparatus 70, as described above, this rotation center axis 125, grain tank 5 the rotation center axis 126, both are configured to be on the axis of the fulcrum shaft 104. Therefore, the central axis 124, the rotation center axis 125 of the belt type transfer apparatus 70 and the rotating center axis 126 of the grain tank 5, the supporting portion 69a is that both provided on the same center axis 30 Thus, unlike the case of having a plurality of rotation center shafts, the belt-type transport device 70 and the grain tank 5 do not interfere with each other during the rotation, and the space required for the rotation can be reduced.

That is, in the combine, the central shaft core 124 at the tip of the outlet of the grain discharging device 13, the rotational central shaft core 125 of the belt-type transport device 70, and the rotational central shaft core 126 of the grain tank 5 are in the same center. Since it is provided on the shaft 30, the belt-type transport device 70 and the grain tank 5 can be rotated independently of each other, and the grain discharging work and the maintenance management work inside the combine can be performed in parallel. The degree of freedom is improved, and the space saving effect can reduce the size and weight of the machine body, thereby reducing component costs and improving maintainability. As shown in FIG. 3, the support 24 is provided with an elevating support shaft 49 concentrically with the drive shaft 38, and the base of the first transport unit 21 is vertically moved around the elevating support shaft 49. It can be rotated.

  Similarly to the first transport unit 21, the second transport unit 22 is also externally covered with a square pipe-shaped second transport case 34, and a driven shaft 42 is pivoted on the transport start end side of the second transport case 34. A driven pulley 43 is externally fitted and fixed to the driven shaft 42. A driven shaft 44 is also pivotally supported on the transfer terminal side of the second transfer case 34, and a driven pulley 45 is fitted and fixed to the driven shaft 44. The driven pulley 45 is interposed between the driven pulley 45 and the driven pulley 43. The second belt 47 with the conveying plate 47a standing on the outer periphery is wound, and a plurality of belt support members 73 for preventing the slack of the belt are interposed between the upper and lower conveying surfaces of the second belt 47. It is installed.

  Then, on the inner lower surface on the transport start end side of the second transport case 34 and the inner lower surface on the transport end side of the first transport case 33, the joint guide plates 48a and 48b are arranged so that the central side of the connecting portion 23 is raised. It is fixed and inclined. Of these, the inheritance guide plate 48a prevents the grains conveyed on the upper surface of the first belt 46 from entering the lower portion of the first belt 46 and back, and the inheritance guide plate 48b is provided with the inheritance guide plate 48b. The grain is stored on the plate 48b, so that the grain can be easily picked up by the transport plate 47a. Further, a final discharge port 34a is opened on the lower surface of the second transfer case 34 on the conveyance end side, and a cylindrical guide cover 80 for preventing grain scattering is suspended from the final discharge port 34a. Yes.

  In such a configuration, the grains transported from the first transport unit 21 are scooped up by the transport plate 47a at the transport start end of the second transport case 34 without being spilled, and then moved on the second belt 47. It is transported to the transport end side and dropped into the container 64 placed below from the final discharge port 34a.

  In the connecting portion 23, as shown in FIGS. 6 and 7, a first stay 71 is fixed on the transfer terminal portion of the first transfer case 33, and on the transfer start end portion of the second transfer case 34. The second stay 72 is fixed, and the second stay 72 and the first stay 71 are connected to each other by a connecting arm 74 so as to be rotatable. The second transport unit 22 is centered on the first stay 71. Is rotated sideways so that it can be deployed from the storage position 75 to the discharge position 76. The base end surface of the second transport case 34 at the discharge position 76 is in contact with the front end surface of the first transport case 33, and both the contacted end surfaces are firmly secured by a connecting member such as a hook (not shown). It is connected so that both conveying parts 21 and 22 do not come off during the grain discharging operation.

That is, since the belt-type transport device 70 can be folded and stored in this way, a long transport unit can be stored above the rear part of the machine body, the storage space of the conveyor can be reduced, and stored when the grain discharging operation is not performed. Therefore, it will not interfere with the work such as mowing, and work efficiency will be improved.

Further, transmission gears 81 and 82 are fitted and fixed coaxially with the driven shafts 40 and 42, respectively, and when the second transport unit 22 is deployed and is at the discharge position 76, the transmission gears 81 and 82 are transmitted. The gear 82 meshes with the gear 82, and the rotational force of the driven shaft 40 can be transmitted to the driven shaft 42. Thus, the driving force of the first belt 46 by the drive pulley 39 is transmitted to the second belt 47 in the order of the driven pulley 41 → the driven shaft 40 → the transmission gear 81 · 82 → the driven shaft 42 → the driven pulley 43, the belt Both belts 46 and 47 of the type conveying device 70 can be driven.

Next, the driving force transmission configuration of the belts 46 and 47 of the belt-type conveying device 70 will be described with reference to FIGS. 3, 4, and 6. A transmission shaft 77 is vertically inserted in the hollow fulcrum shaft 104 erected on the chassis frame 100 and is rotatably supported by a bearing 101 or the like. A bevel gear 94 is fixed to the upper end of the transmission shaft 77. The bevel gear 94 is engaged with a bevel gear 95 fixed to the drive shaft 38, and a bevel gear 96 is connected to the lower end of the transmission shaft 77. Is fixed, and the bevel gear 96 is connected and interlocked with the drive shaft 38.

  On the other hand, a bevel gear 98 is also fixed at the end of the conveyor shaft 11 a of the carry-out conveyor 11, a double gear 97 is interposed between the bevel gear 98 and the bevel gear 96, and a large bevel gear 97 a of the double gear 97. Meshes with the bevel gear 98, the small bevel gear 97 b of the double gear 97 meshes with the bevel gear 96, and the conveyor shaft 11 a is connected to and linked to the bevel gear 96.

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 transmission gear 102 is transmitted from the conveyor shaft 11a → the bevel gear 98 → the double gear 97 → the bevel gear 96 → The shaft 77, the bevel gear 94, the bevel gear 95, and the drive shaft 38 are transmitted to the drive pulley 39 in this order, and the first belt 46 and the second belt 47 of the belt type conveyance device 70 are driven.

That is, in this way, the belt-type transport device 70 is driven by the power transmitted via the fulcrum shaft 104 from the carry-out conveyor 11 that is mounted on the bottom of the grain tank 5, so that a separate drive device such as an electric motor is provided. The cost of parts can be reduced, and the carry-out speed of the carry-out conveyor 11, the discharge speed of the grain discharge device 13, and the transfer speed of the belt-type transfer device 70 can be easily synchronized. A stable grain discharging operation without clogging can be made possible.

Next, the swivel raising / lowering configuration of the belt-type conveyance device 70 will be described with reference to FIGS. 4, 6, 8, and 9. As shown in FIGS. 4 and 6, in the support body 24 that is rotatably supported by the upper part of the fulcrum shaft 104, a fixing member 103 is fixed to the rotating pipe 24 b of the support body 24, and the fixing member 103 is fixed. Is provided with a cylinder support shaft 25, and a base portion of an elevating cylinder 26 is supported on the cylinder support shaft 25, and a tip portion of a piston rod 26 a extending from the elevating cylinder 26 is connected to the first transfer case 33. The left side plate is pivotally connected to the left side plate.

  Further, as shown in FIG. 6, a turning motor 27 is fixed to the front surface of the support stay 111 that supports the fulcrum shaft 104, and a turning shaft 27a extends upward from the turning motor 27. A turning drive gear 28 is fixed to the tip of the turning shaft 27a, and the turning drive gear 28 meshes with the turning driven gear 24c on the side surface.

In such a configuration, by driving the swing motor 27 and the lift cylinder 26, as shown in FIGS. 6, 8, and 9, the swing position and the lift position of the belt type conveyance device 70 can be freely set. be able to.

For example, when driving the swing motor 27, for turning the driven gear 24c by turning drive gear 28 is rotated, the support 24 for supporting the belt conveyor device 70 the base is rotated around the fulcrum shaft 104, the belt discharge position of formula transfer apparatus 70 can be freely changed between the left side position 76⇔ rear position 84⇔ right side position 85 is the final outlet 34a can be set to an appropriate ejection position. Further, when the elevating cylinder 26 is driven at each of the turning positions 76, 84, and 85, the piston rod 26a is expanded and contracted, and the height position of the piston rod 26a tip portion is also raised and lowered. The belt-type transport device 70 can be lifted and lowered freely around the lifting support shaft 49 as in the direction 85 ⇔ lift position 87, and the final discharge port 34 a can be set to an appropriate discharge height.

That is, since the belt-type conveyance device 70 is configured to be capable of turning and moving up and down in this way, the turning position and height of the grain discharge can be freely changed. It is located far away and can be discharged to a tall container or truck without problems, and a large amount of grain can be discharged quickly and reliably. Further, since the belt-type transport device 70 can turn around the fulcrum shaft 104, vibration during turning is suppressed by the fulcrum shaft 104 that is firmly supported, and the belt-type transport device 70 can stably turn at a high speed to a predetermined discharge position. Thus, the turning operation time can be shortened, and it is not necessary to newly provide a support shaft for turning, so that the number of parts can be reduced, the parts cost can be reduced, and the maintainability can be improved.

Next, the control configuration of the belt type conveyance device 70 will be described with reference to FIGS. 3, 6, and 10. As shown in FIG. 3, the rear of the grain tank 5 is covered with a back cover 35, and on the right side surface of the back cover 35, a turning lever for operating turning of the turning motor 27 and switching of the turning direction is operated. 57 and an elevating lever 58 for extending and retracting the elevating cylinder 26 are provided. Further, a detection unit of a turning angle sensor 59 made up of a potentiometer or the like is connected to the turning driven gear 24c, and a detection unit of a raising / lowering angle sensor 60 made up of a potentiometer or the like is also connected to the lifting support shaft 49. .

As shown in FIG. 10, the levers 57 and 58, the angle sensors 59 and 60, the turning motor 27, and the lifting cylinder 26 are all connected to the combine controller 51, and the levers 57 and 58 are operated. When the belt-type transport device 70 is swung and lifted, when the left and right swivel limit angles or the vertical lift limit angles are reached, the angle sensors 59 and 60 detect these limit angles, and the swivel motor 27 and lift The cylinder 26 is automatically stopped.

Thus, the monitoring devices such as an angle sensor 59, 60, by providing the check means such as a limit switch which is disposed in the limit position, upon pivoting, lifting the belt conveyor device 70, a belt-type transfer apparatus 70 It is possible to prevent the machine body parts from being damaged due to interference between parts or from the outside.

As shown in FIGS. 6 and 10, a storage switch 61 is provided on the upper surface of the first transfer case 33, and the front portion of the second transfer case 34 is rotated upward to move from the discharge position 76 to the storage position. When rotated to 75, the storage switch 61 is pushed by the lower surface of the second transfer case 34 so that the switch is turned on. Further, the storage switch 61 is also connected to the controller 51, to the controller 51, which is interposed between the transmission gear 10 from the engine, the drive clutch 32 is connected to output conveyor 11, belt conveyor device 70 When the storage switch 61 is folded and stored, the storage switch 61 is set to “ON”, the drive clutch 32 is set to “OFF”, and the discharge drive of the carry-out conveyor 11, the grain discharge device 13, and the belt type transfer device 70 is all stopped. It can also be.

In this way, by providing storage detection means such as the storage switch 61 in the folding part, when folding the belt-type transport device 70, the grains spill out from the connecting part 23 due to an erroneous operation or overflow in the transport path. The occurrence of grain clogging can be reliably prevented.

  A receiving bracket 55 is erected on the support case 55, and when stored, the second transfer case 34 is placed on the receiving bracket 55 so that it can be fixed with a fixture (not shown). Yes. As a result, at times other than the grain discharging operation, the second transport case 34 may be shaken or unfolded due to the vibration of the body or an erroneous operation, which may interfere with the operation or damage the connecting portion 23. It is sure to prevent it.

Next, the grain conveyance configuration of the belt-type conveyance device 70 will be described with reference to FIG. As shown in FIG. 11 (a), when the drive pulley 39 is rotated about the drive shaft 38 in the direction of the arrow 18 (counterclockwise in the figure), the grain discharge device 13 passes through the grain inlet 50. The fallen grain 14 is stored between the adjacent conveyance plates 46 a on the upper conveyance surface 46 b of the first belt 46, and is conveyed as it is to the conveyance end portion of the first conveyance unit 21. The grain 14 inherited by the connecting portion 23 is also stored in the second conveying portion 22 between the conveying plate 47a adjacent to the upper conveying surface of the second belt 47 in the same manner, and the second conveying portion as it is. 22 is transported to the transport terminal end and dropped into the lower container 64 from the final discharge port 34a.

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 vicinity of the combine in which the belt type conveying device 70 capable of conveying the grain backward or laterally is disposed, the grain conveying portion of the belt type conveying device 70 is connected to the belts 46, 47 and the pulleys 39, 41, Since the grain 14 is provided on the upper side of the conveyor 54 composed of 43, 45, etc., the grain 14 is conveyed while being held by the conveying plates 46a, 47a and the upper conveying surface, and between the grains 14 or between the grains 14 As a result, it is possible to reliably prevent the grain 14 from being soiled or damaged.

A cleaning port 33b is opened on the upper side of the first transfer case 33, a cleaning lid 36 is detachably attached to the cleaning port 33b, and a cleaning port is also opened on the upper side of the second transfer case 34. The cleaning lid 36 is detachably attached. That is, in this way, the belt-type transport device 70 is provided with a cleaning port that is an opening for maintenance and the like in the exterior transport cases 33 and 34 so that it can be opened and closed during maintenance in the transport case. Without removing the cleaning lid, it is possible to easily remove soil, dust, or residual grains, and to further reduce grain contamination and damage, further improving grain quality. Can be planned.

  11B, when the drive pulley 39 is rotated about the drive shaft 38 in the direction of the arrow 19 (clockwise in the figure), the grain discharge device 13 removes the grain flow. While the grain 14 that has fallen through the inlet 50 is stored on the upper conveyance surface 46 b directly below the grain inlet 50, a part of the grain 14 flows down toward the bottom of the bag portion 33 c and below the first conveyance frame 33. The sheet is stored on the plate and further conveyed to the conveyance end portion of the first conveyance unit 21 while being pushed to the conveyance end portion side (left side in the drawing) by the rotated conveyance plate 46a. Similarly, the grain 14 inherited by the connecting portion 23 is stored on the lower plate of the second transfer frame 34 in the second transfer portion 22 and is pushed toward the transfer end portion by the transfer plate 47a. Then, it is conveyed and discharged from the final discharge port 34a.

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 vicinity of the combine in which the belt type conveying device 70 capable of conveying the grain backward or sideward is provided, the grain conveying portion of the belt type conveying device 70 is provided below the conveying conveyor 54. In addition, rubbing between the grain 14 and the inner wall surfaces of the transport cases 33 and 34 is inevitable, but damage to the grain is reduced as compared with the case where the discharging operation is performed by a screw-type discharging auger, and further, Since dirt and dust are less likely to enter and accumulate inside the belts 46 and 47, occurrence of problems such as biting into the drive pulley 39 is suppressed, and grains under conditions of heavy drying and heavy dirt and dust Can be effectively prevented.

In addition, a large number of small holes 52 are opened in the lower half of the bag portion 33c, and the guide body 65 having an arc shape in a sectional view provided along the rotation trajectory of the conveying plate 46a in the bag portion 33c is also provided. A large number of small holes 65a are opened so that dirt or dust smaller than the grain 14 falls through the small holes 52 and 65a. In this embodiment, by providing a perforated member only in the vicinity of the grain conveyance start end, soil and dust are discharged out of the machine body at the initial stage of grain conveyance in the conveyance conveyor 54. However, the perforated member may be provided in the middle of the conveyance of the belt-type conveyance device 70 or at the conveyance end, and is not particularly limited as long as it is a position where discharge of soil and dust to the outside of the machine body is performed efficiently.

  That is, since the perforated members 33c and 65 having a large number of holes 52 and 65a are provided on the lower side of the conveyer 54, dirt and dust brought together with the grain 14 from the grain discharging device 13 are removed. Therefore, without providing a separate discharging device, it can be discharged easily and efficiently to the outside of the machine body, and it is possible to more reliably prevent the grain from being damaged or damaged.

Above examples are folding retractable belt conveyor apparatus (hereinafter referred to "folded storage type") 70 described based on, but then, the belt-type conveying device 70 of the folding housing type Unlike the case of a belt-type transport device (hereinafter referred to as “swivel storage type”) 78 that can be swung as it is and stored in the side of the machine without dividing the transport section after the grain discharging operation, FIG. It demonstrates based on thru | or FIG.

  The grain discharging device 15 is inclined to the left of the machine body, and the lower part of the grain discharging device 15 communicates with the carry-out conveyor 11, while the upper part of the grain discharging device 15 has a grain guide member 117. Via the support 118. The support body 118 is firmly supported by a fulcrum shaft 113 erected substantially at the center of the left and right sides of the machine body at the rear part of the machine body, and a long transport unit 119 is extended from the support body 118.

At the time of storage, the transport unit 119 is placed on the receiving metal fitting 116 so that it can be fixed with an attachment (not shown) or the like. At this time, the storage position 106 has a slightly inclined inclination of the transport unit 119 from the horizontal. It is set to be upward (elevation angle 120). That is, in this way, the transport unit 119 of the belt-type transport device 78 holds and fixes the discharge port 123 side obliquely upward at the storage position 106, so that the grain remains in the transport unit 119. Even after the grain discharging operation is completed, since the grain and soil do not fall from the outlet 123 during traveling and storage after storage, the storage warehouse is not polluted and the worker is safe. It is possible to carry out maintenance work with care.

  The support 118 is externally fitted to the upper portion of the support shaft 113 and is connected to the turning motor 115 through a plurality of gears. By driving the turning motor 115, the transport unit 119 is moved to the storage position 106. To the right side position 107 so that the grain can be discharged from the rear of the machine body.

  Further, a lifting / lowering cylinder 114 is fixed to the support 118, and a tip portion of a piston rod 114a of the lifting / lowering cylinder 114 is rotatably connected to a transport unit 119. The swing motor 115 is driven to drive the transport unit. After the 119 is turned to the left side position 108, the piston rod 114a is expanded and contracted to move the transport unit 119 up and down like the lowered position 109 (the depression angle 121), the horizontal position 108, and the raising position 110 (the elevation angle 122). The inclination can be freely changed, and the discharge port 123 can be set to an appropriate discharge height. It should be noted that the inclination can be freely changed up and down at other discharge positions such as the right side position 107.

That is, in this way, the conveying unit 119 of the belt-type conveying device 78 is configured to be able to tilt the discharge port 123 side obliquely downward at the discharge positions 107 and 108, so that the grain discharging operation is inclined obliquely downward. Or by tilting obliquely downward after completion of the work, the grains that are to remain in the transport unit 119 also roll down from the outlet 123 and are discharged, thereby reliably preventing the grains themselves from remaining. It can be done.

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 side view which shows the support structure of a belt-type conveying apparatus. It is a plane arrangement | positioning figure which shows the rotation structure of a grain tank. It is a rear view which shows the grain discharge work condition to the left side. It is an enlarged side view of the connection part of a belt-type conveyance apparatus. It is a side view which shows the grain discharge work condition to back. It is a rear view which shows the grain discharge work condition to the right side. It is a block diagram of attitude control and drive control of a belt type conveyance device. It is an enlarged side view of a grain conveyance part which shows a grain conveyance condition, and when Fig.11 (a) performs a grain conveyance on a belt conveyor upper side, FIG.11 (b) performs a grain conveyance on a belt conveyor lower side. Is the case. It is a side view which shows the accommodation condition of a rotation accommodation type belt type conveying apparatus. It is a top view which similarly shows the grain discharge operation | work situation to back. It is a rear view which similarly shows the grain discharge | emission work condition to the left side.

Explanation of symbols

5 grain tank
13 Grain discharging device
13a / 123 outlet
33 ・ 34 Carrying case
33b Cleaning port
50 grain inlet
70 belt type conveyor
126 rotation center axis

Claims (1)

The bottom of the grain tank (5) communicates with the lower part of the bucket-type grain discharge device (13), the grain discharge device (13) is erected at the rear of the machine body, and stored in the grain tank (5). the cereal kernels, in combined that can be discharged from the bucket grain discharge device for formula (13) above the outlet (13a), the outlet of the grain discharge device for the bucket (13) and (13a) , Communicating with the grain inlet (50) of the belt-type transport device (70) for discharging the grain out of the machine, the belt-type transport device (70) being capable of turning and up-and-down turning, The rotation center axis (125) of the belt type conveying device (70) and the rotation center axis (126) for rotating the grain tank (5) to the side are made to coincide with each other. A fulcrum shaft (104) is erected on the dynamic shaft core (125, 126) from the chassis frame (100). A support (24) is rotatably supported on the shaft (104), and the support (24) is rotatably supported on the pivot center axis (125). The support box (24a) is fixed to the upper portion of the support box (24a), and a horizontal lifting shaft (49) is provided on the support box (24a). A combine that is pivotally supported so that it can be moved up and down.

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