JP2004229671A5 - - Google Patents

Description

Combine

  The present invention relates to a combine provided with a grain discharging device capable of setting a discharging height at a high position without damaging the grains in a grain tank, wherein a grain from the grain discharging device is used for an agricultural road or the like. The present invention relates to a technology capable of directly discharging a large storage container or bag provided on a cargo bed of a stopped truck or the like from above.

Conventionally, the discharge of grains has been performed by a discharge auger or bagging device. Of these, in the discharge auger, the grains are once fried from the side of the grain tank, transported in a discharge auger extending substantially horizontally, and discharged from a tip of the discharge auger to a truck or the like. Also, in the bagging device, after the selected grains are fried, they pass through a small tank called a topsacker and fall into the grain bag in the bagging device provided on the side of the fuselage. I was
In the case of legumes such as soybeans in which grains are soft and foreign matter such as soil is likely to be mixed in, the discharge operation after cutting, threshing and sorting is performed by the discharge auger with a screw type and a long transport distance. Conventionally, the grain is easily damaged and the quality of the grain is reduced.Conventionally, a combine dedicated to beans equipped with the bagging device or combined with other grains is used to minimize the contamination and damage of the grain. I was trying to suppress it.
However, in this bag packing apparatus, since the grain bag cannot be so large, it has to be divided into a large number of bags and packed in bags. Was bad. Therefore, the present inventors provided a grain discharge device having a lower part communicating with the grain tank at the rear of the machine body, and transported the grains upward by a discharge conveyor such as a bucket type conveyor in the grain discharge device. So that they can be discharged.
Furthermore, the grain discharge device is configured to be tiltable with a cylinder or the like, or an attachment capable of guiding the grain downward and sideways is attached to a discharge port of the grain discharge device so as to expand a dischargeable range. ing.

Japanese Utility Model Publication No. 1-1137787

However, the height of the farm road with trucks is higher than the field with the combine, and there are many obstacles such as ridges and gutters of blocks between this field and the farm road. Grain transfer up to a considerable height and distance is required for the transfer of the grain, the direct discharge of the grain to the bed such as trucks using any of the fixed, tilting, attachment type of grain discharge device There was a problem that it was difficult.
Further, there is a strong demand for further improvement of grain quality by reliably preventing contamination and damage of the grain being conveyed 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.
In claim 1, the bottom of the grain tank 5 and the lower part of the bucket type grain discharging device 13 communicate with each other, and the grain discharging device 13 is erected at the rear of the machine body and stored in the grain tank 5. the grain, the combine was to be discharged from the grain discharge device 13 above the outlet 13a of the bucket, the discharge port 13a of the grain discharge device 13 of the bucket, to discharge the grain overboard It is connected to the grain inlet 50 of the belt-type conveying device 70.
According to the second aspect, in the combine according to the first aspect, the belt-type transport device 70 is configured to be rotatable around a rotation center shaft 125 that is horizontally rotated, and to move the grain guide member 69 to the left and right rotation center. It extends above the shaft 125.

The present invention has the following effects.
As described in claim 1, the bottom of the grain tank 5 is communicated 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 and stored in the grain tank 5. the grain, the combine was to be discharged from the grain discharge device 13 above the outlet 13a of the bucket, the discharge port 13a of the grain discharge device 13 of the bucket, to discharge the grain overboard Since it communicated with the grain inlet 50 of the belt-type conveying device 70, the grain can be directly discharged to the bed of a truck or the like stopped on a farm road or the like by the belt-type conveying device. Regardless of the rotation of the grain, the grain inlet is located at substantially the same position, the structure from the outlet to the grain inlet can be simplified, and the cost of parts can be reduced and the maintainability can be improved.

  As described in claim 2, the belt-type transfer device 70 is rotatable and rotatable about the right and left turning center axis 125, and the grain guide member 69 is extended above the left and right turning center axis 125. Therefore, the transfer of the grain from the bucket-type grain discharging device 13 to the belt-type conveying device 70 is reliably performed irrespective of the turning of the belt-type conveying device 70.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is an overall side view of a combine according to the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a rear view of the same, FIG. 4 is a rear side view showing a support structure of a conveyor-type conveying device, and FIG. FIG. 6 is a rear view showing a state of grain discharging work to the left side, FIG. 7 is an enlarged side view of a connecting portion of the conveyor-type conveying device, and FIG. 8 is a grain discharging backward. 9 is a rear view showing the state of grain discharging work to the right side, FIG. 10 is a block diagram of drive control of the conveyor-type conveyor, and FIG. 11 is a grain transport showing the state of grain transport. 11A is an enlarged side view of the section, FIG. 11A is a case where grain transport is performed on the upper side of the conveyor, FIG. 11B is a case where grain transport is performed on the lower side of the conveyor, and FIG. FIG. 13 is a side view showing the storage state of the transport device, and FIG. The plan view of FIG. 14 is a rear view similarly showing a grain discharge work status of the left side.

First, the overall configuration of a 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 provided in front of the threshing unit 2. The harvesting unit 4 is connected in series, and a grain tank 5 is mounted on a lateral side of the threshing unit 2, and an operating unit 6 is connected in front of the grain tank 5.

  Further, below the threshing unit 2, a swing sorting device 9 is arranged, and a bucket type lifting device is connected to the end of the first conveyor 8 laid laterally below the swing sorting device 9. A grain conveyor 7 is erected. In the conveyor 7, a conveyor chain 16 is wound between sprockets 14 and 15 which are supported at upper and lower portions, and a plurality of buckets 17 are arranged on the conveyor chain 16 in a row. The fines such as the first ones sorted by the apparatus 9 are conveyed to an arc-shaped receiving portion below the fry conveyor 7, and the fines in the receiving portion are scooped up by a bucket 17 on a conveyor chain 16 and directly lifted. It is transported to the upper part of the grain conveyor 7.

  The upper part of the grain conveyor 7 is communicated with the grain tank 5 via a connecting pipe 68, and the fine grains conveyed to the grain tank 5 are blown off by a rotating leveling disc (not shown) or the like. Thus, the grains are uniformly dispersed and stored in the grain tank 5. A screw-type conveyer 11 is mounted on the lower gutter 10 of the grain tank 5, and the terminal end of the conveyer 11 is connected to a lower part of the grain discharge device 13 via a transfer case 12. .

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

  As shown in FIG. 4, a guide member 90 is disposed below the grain tank 5, and is disposed so as to be detachably attached to the transfer case 12 by being inclined so as to be lower toward the transfer case 12. Switching between the conveyance and the conveyance by the guide member 90 may be freely performed so that the carrying-out means can be selected according to the situation. For example, when it is desired to secure a sufficient storage capacity of the grain tank 5, the grain is conveyed by the unloading conveyor 11 which hardly impairs the tank capacity, and on the other hand, the grain damage is reduced as much as possible by sliding down on the guide member 90. In this case, although the upper space is reduced and the tank capacity is slightly impaired, the transport is performed by the guide member 90 in which the grains are hardly damaged.

  As described above, the lower part of the grain discharging device 13 is connected to and communicated with 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 in the rear part of the machine body. Therefore, compared to the conventional long discharge auger or wide bagging device provided on the upper or side of the fuselage, the fuselage height and the width of the fuselage can be reduced, and the damage by the fuselage during traveling of the crop can be prevented. The storage space of the aircraft has been reduced.

  As shown in FIGS. 3 and 4, the upper portion of the grain guide member 69 is connected and connected to the outlet 13 a of the upper portion of the grain discharging device 13, and the outlet of the grain guide member 69 discharges from the outlet 13 a. The grain to be transported is guided to the grain inlet 50 of a conveyor type (belt type) transport device 70 disposed below the outlet 13a, and the transported kernel is stored in the grain guide member 69. To be temporarily stored.

  With such a configuration, the grain transport between the bucket-type discharge conveyor 56 in the grain discharge device 13 and the belt-type transport conveyor 54 in the conveyor-type transport device 70 due to a difference in the transport method or the like is performed. Even when a large difference occurs in the speed or when the amount of stored grains in the grain tank 5 fluctuates greatly at the start or end of pruning, the grain guide member 69 is used as a buffer for the grain flow. , And can keep the flow of grains constant to prevent grain clogging and the like.

  That is, the lower part of the grain discharging device 13 is connected and connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back of the grain tank 5, and the outlet 13 a of the grain discharging device 13 is provided. In the vicinity, in a combine provided with a conveyor-type transport device 70 capable of transporting the grains rearward or sideward, the grain inlet 50 to the transport conveyor 54 of the belt conveyor of the conveyor-type transport device 70; Since the grain guide member 69, which is a temporary storage unit, is provided between the grain discharge device 13 and the discharge port 13a from the discharge conveyor 56 of the bucket conveyor, the grain discharge device 13 and the conveyor-type transfer device 70 are provided. This makes it possible to stably discharge the grains without clogging the grains while keeping the flow of the grains between them constant.

  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 protruded from a support case 55 in which the threshing unit 2 and the swing sorting device 9 are provided. The support case 55 is mounted and fixed on the chassis frame 100.

  A pivot member 92 is rotatably fitted to the fulcrum shaft 104 which is firmly supported by the chassis frame 100 and the support stays 111 and 112, and is vertically extended and extends horizontally from the pivot member 92. The tips of the stays 92a and 92b are connected and fixed to the back surface of the grain tank 5, and the grain tank 5 is positioned around a rotation center axis 126 on the axis of the fulcrum shaft 104. It can be rotated from 62 to a position 63.

  In this way, by configuring the grain tank 5 to be rotatable by the fulcrum shaft 104 protruding from the machine body, the grain tank 5 can be quickly and reliably opened, facilitating maintenance management work inside the combine. It is trying to make it.

Next, the structure of the conveyor-type transfer device 70 according to the present invention will be described with reference to FIGS. 3, 4, 6, and 7. FIG.
As shown in FIG. 3, FIG. 4, and FIG. 6, the conveyor-type conveyor 70 receives the grains discharged from the discharge port 13a and conveys them to the middle of the conveyor, and is conveyed to the middle of the conveyor. Transport section 22 for transporting the kernels to the end of the conveyor, and a connecting section 23 for rotatably connecting the second transport section and the first transport section 21 and transmitting the driving force of the conveyor. And a support 24 that supports the base of the first transport unit 21 so as to be vertically rotatable.

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

  Further, the upper portion of the fulcrum shaft 104, which is firmly supported, is slidably inserted from below in the rotating pipe 24b. The support 24 is supported by the fulcrum shaft 104, and is supported by the support 24. The first transport section 21, the connecting section 23, and the second transport section 22 can be reliably held. The conveyor-type transfer device 70 can be turned around a rotation center axis 125 which is on the axis of the fulcrum shaft 104 and corresponds to the center axis of the rotation pipe 24b.

  That is, the lower part of the grain discharging device 13 is connected and connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back of the grain tank 5, and the outlet 13 a of the grain discharging device 13 is provided. In the vicinity of a combine provided with a conveyor-type transfer device 70 capable of transferring grains to the rear or side, the grain tank 5 is rotated by a fulcrum shaft 104 projecting from a chassis frame 100 supporting the machine body. Since the conveyor type transport device 70 can be supported by the fulcrum shaft 104 while being configured to be movable, the discharge position can be stabilized without the conveyor type transport device 70 being shaken even during the grain discharging operation, The grains can be reliably discharged to the target position, and scattering of the grains can be prevented.

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

On the outer peripheral surface of the first belt 46, conveying plates 46a, 46a,... Are erected at predetermined intervals so that grains are stored between the conveying plates 46a, 46a,. As described later, even when the conveying end side is raised and the inclination of the upper conveying surface is increased, the kernel is prevented from rolling and returning.
Further, a plurality of belt support members 73 fixed inside the first transfer case 33 are interposed between the upper and lower transfer surfaces of the first belt 46, and the side of the first belt 46 by the belt support members 73. Since the edges can be supported, the upper conveying surface of the first belt 46 can be prevented from hanging down due to the weight of the grains, and in combination with the effect of the conveying plates 46a, 46a,. The grains in the first transport unit 21 can be transported stably and reliably from the transport start end to the transport end.

  Further, a grain inlet 50 is formed on the transfer start end side of the first transfer case 33, and the fitting inlet is opened above the support box 24a immediately above the grain inlet 50. A support portion 69a formed in a cylindrical shape below the grain guide member 69 is slidably fitted in the hole, and has been conveyed from the grain discharge device 13 via the support portion 69a. The grains are allowed to fall into the transport start end of the first transport unit 21.

  In such a configuration, the grains discharged from the discharge port 13a flow down from the support portion 69a into the grain inlet 50, and fall on the first belt 46 on which the transport plate 46a is erected, The sheet is conveyed to the second conveying section 22 as it is.

  At this time, the center axis 124 of the support portion 69a coincides with the rotation center axis 125 of the conveyor-type conveying device 70, and as described above, the rotation center axis 125 and the rotation center of the grain tank 5 The shaft 126 is configured to be on the axis of the fulcrum shaft 104. Therefore, the center axis 124 of the support portion 69a, the center axis 125 of rotation of the conveyor-type conveying device 70, and the center axis 126 of rotation of the grain tank 5 are all provided on the same center axis 30. Unlike the case of having the center axis of rotation, the conveyor-type conveying device 70 and the grain tank 5 do not interfere with each other during rotation, and the space required for rotation can be reduced.

That is, in the combine, the center axis 124 at the tip of the outlet of the grain discharge device 13, the rotation center axis 125 of the conveyor-type conveyance device 70, and the rotation center axis 126 of the grain tank 5 are on the same center axis 30. , The conveyor-type conveying device 70 and the grain tank 5 can be rotated independently of each other, and the degree of freedom of work is increased, such that the grain discharging work and the maintenance management work inside the combine can be performed in parallel. As a result, the size and weight of the body can be reduced due to the space saving effect, and the cost of parts can be reduced and the maintainability can be improved.
As shown in FIG. 3, the support 24 is provided with an elevating shaft 49 concentrically with the drive shaft 38, and the base of the first transport unit 21 is moved up and down around the elevating shaft 49. To be able to rotate.

  Similarly to the first transport unit 21, the second transport unit 22 is externally covered with a square pipe-shaped second transport case 34, and a driven shaft 42 is pivotally mounted 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 end side of the second transfer case 34, and a driven pulley 45 is externally fitted and fixed to the driven shaft 44, and between the driven pulley 45 and the driven pulley 43. A second belt 47 having a transport plate 47a erected on the outer periphery is wound, and a plurality of belt support members 73 for preventing slack of the belt are interposed between upper and lower transport surfaces of the second belt 47. Is established.

  On the inner lower surface of the second transport case 34 on the transport start end side and on the inner lower surface of the first transport case 33 on the transport end side, the inheriting guide plates 48a and 48b are arranged such that the center of the connecting portion 23 is higher. It is fixed at an angle. The inheriting guide plate 48a prevents the grains conveyed on the upper surface of the first belt 46 from sneaking under the first belt 46 and returning, and the inheriting guide plate 48b is connected to the inheriting guide plate 48b. The grains are stored on the plate 48b to facilitate the scooping of the grains by the transport plate 47a. In addition, a final discharge port 34a is opened on the lower surface of the second transport case 34 on the transport end side, and a cylindrical guide cover 80 for preventing scatter of grains is vertically provided at the final discharge port 34a. I have.

  In such a configuration, the grains transported from the first transport unit 21 are scooped up without being spilled by the transport plate 47 a at the transport start end of the second transport case 34, and then travel on the second belt 47. The sheet is conveyed to the conveyance end side, and falls 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 a transport end portion of the first transport case 33, and is provided on a transport start end portion of the second transport case 34. A second stay 72 is fixedly mounted, and the second stay 72 and the first stay 71 are rotatably connected by a connecting arm 74. The second stay 22 is provided around 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 transfer case 34 at the discharge position 76 is in contact with the distal end surface of the first transfer case 33, and the contacted end surfaces are firmly connected by a connecting member such as a hook (not shown). It is connected so that the two transport units 21 and 22 do not come off during the grain discharging operation.

  That is, since the conveyor-type transport device 70 can be folded and stored in this way, a long transport portion can be stored above the rear part of the machine body, the storage space of the conveyor can be reduced, and the conveyor can be stored when the grain discharging operation is not performed. So that the work such as reaping is not disturbed, and the work efficiency is improved.

  Transmission gears 81 and 82 are externally fitted and fixed on the same axis as the driven shafts 40 and 42, respectively. When the second transport unit 22 is deployed and is at the discharge position 76, the transmission gears 81 and 82 The driven gear 40 meshes with the gear 82 and can transmit the rotational power of the driven shaft 40 to the driven shaft 42. Thereby, the driving force of the first belt 46 by the driving pulley 39 is transmitted to the second belt 47 in the order of the driven pulley 41 → the driven shaft 40 → the transmission gears 81/82 → the driven shaft 42 → the driven pulley 43, and The drive of both belts 46 and 47 of the type conveyance device 70 becomes possible.

Next, a configuration for transmitting the driving force of the belts 46 and 47 of the conveyor-type conveyance device 70 will be described with reference to FIGS.
A transmission shaft 77 is vertically inserted into 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 fixedly mounted on the upper end of the transmission shaft 77. The bevel gear 94 meshes with a bevel gear 95 fixedly mounted on the drive shaft 38, and a bevel gear 96 is mounted on the lower end of the transmission shaft 77. Is fixed, whereby the bevel gear 96 is connected to and linked with the drive shaft 38.

  On the other hand, a bevel gear 98 is also fixed to the end of the conveyor shaft 11a of the unloading conveyor 11, a double gear 97 is interposed between the bevel gear 98 and the bevel gear 96, and a large bevel gear 97a of the double gear 97 Is meshed with the bevel gear 98, the small bevel gear 97b of the double gear 97 is meshed with the bevel gear 96, and the conveyor shaft 11a 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 unloading conveyor 11 through the transmission mechanism including the transmission gear 102 and the like is transmitted from the conveyor shaft 11a → bevel gear 98 → double gear 97 → bevel gear 96 → transmission. It is transmitted to the drive pulley 39 in the order of the shaft 77 → the bevel gear 94 → the bevel gear 95 → the drive shaft 38, and the first belt 46 and the second belt 47 of the conveyor-type transfer device 70 are driven.

  That is, as described above, the conveyor-type conveyor 70 is driven by the power transmitted from the unloading conveyor 11 mounted on the bottom of the grain tank 5 via the fulcrum shaft 104. And the cost of parts can be reduced. Further, the synchronization of the unloading speed of the unloading conveyor 11, the discharging speed of the grain discharging device 13, and the transfer speed of the conveyor-type transfer device 70 becomes easy, It is possible to perform a stable grain discharging operation without clogging.

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

  As shown in FIG. 6, a turning motor 27 is fixedly provided on the front surface of the support stay 111 for supporting the fulcrum shaft 104, and a turning shaft 27a extends upward from the turning motor 27. A turning drive gear 28 is fixedly provided at 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 turning motor 27 and the elevating cylinder 26, the turning position and the elevating position of the conveyor-type transfer device 70 can be freely set as shown in FIGS. 6, 8, and 9. be able to.

For example, when the rotation motor 27 is driven, the rotation driven gear 24 c rotates the rotation driven gear 24 c, and the support 24 supporting the base of the conveyor-type transfer device 70 is rotated about the fulcrum shaft 104. The discharge position of the transfer device 70 can be freely changed between the left side position 76⇔the rear position 84⇔the right side position 85, and the final discharge port 34a can be set to an appropriate discharge position.
Further, when the elevating cylinder 26 is driven at each of the turning positions 76, 84, and 85, the piston rod 26a expands and contracts, and the height position of the tip of the piston rod 26a also moves up and down. like the rectangular position 85⇔ raised position 87, the conveyor-type conveying device 70 can be freely raised and lowered around the elevating shaft 49 is the final outlet 34a can be set to a proper discharge height.

That is, as described above, since the conveyor-type conveying device 70 is configured to be capable of turning and moving up and down, the turning position and height of the grain discharge can be freely changed, so that the conveyor-type transfer device 70 can be moved rearward or sideward. It can be discharged to a distant container or a truck at a distance, without any problem, and a large amount of grain can be discharged quickly and reliably.
Further, since the conveyor-type transfer device 70 can rotate around the fulcrum shaft 104, the strongly supported fulcrum shaft 104 suppresses vibration and the like during the rotation, and stably rotates at a high speed to a predetermined discharge position. As a result, the turning operation time can be shortened, and it is not necessary to newly provide a support shaft for turning, the number of parts can be reduced, the cost of parts can be reduced, and the maintainability can be improved.

Next, a control configuration of the conveyor-type transfer device 70 will be described with reference to FIGS. 3, 6, and 10. FIG.
As shown in FIG. 3, the rear of the grain tank 5 is covered with a back cover 35, and on the right side of the back cover 35, a turning lever for operating the turning on and off of the turning motor 27 and switching the turning direction is provided. 57, and an elevating lever 58 for performing the expansion and contraction operation of the elevating cylinder 26 are provided. Furthermore, the turning driven gear 24c, together with the detection of the rotation angle sensor 59 made of a potentiometer or the like is connected, to the lifting shaft 49, the detection section of the elevator angle sensor 60 made of a potentiometer is connected .

  As shown in FIG. 10, the levers 57 and 58, the angle sensors 59 and 60, the swing motor 27, and the elevating cylinder 26 are all connected to the controller 51 of the combine, and operate the levers 57 and 58. When the conveyor type transfer device 70 is turned and moved up and down, when the left and right turning limit angles and the up and down limit angles are reached, the angle sensors 59 and 60 detect these limit angles, and the turning motor 27 The cylinder 26 is automatically stopped.

  As described above, by providing a monitoring device such as the angle sensors 59 and 60 and a check means such as a limit switch disposed at a limit position, the conveyor-type transport device 70 And body parts can be prevented from being damaged due to interference between parts or from outside.

  As shown in FIGS. 6 and 10, a storage switch 61 is provided on the upper surface of the first transport case 33, and the tip of the second transport 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 pressed by the lower surface of the second transport case 34 so that the switch is turned on. Further, the storage switch 61 is also connected to the controller 51. The controller 51 is connected to the drive clutch 32 of the unloading conveyor 11 interposed between the transmission gear 10 and the engine. Is folded and stored, the storage switch 61 is turned on, the drive clutch 32 is turned off, and the discharge drive of the unloading conveyor 11, the grain discharging device 13, and the conveyor-type transfer device 70 is all stopped. It can also be.

  As described above, by providing the storage detecting means such as the storage switch 61 in the folding portion, when the conveyor-type transport device 70 is folded and stored, the grains may fall out of the connecting portion 23 due to an erroneous operation or may overflow in the middle of the transport path. The occurrence of grain clogging can be reliably prevented.

  A receiving bracket 55 is provided upright on the support case 55. At the time of storage, the second transport case 34 is placed on the receiving bracket 55 so that the second transport case 34 can be fixed by a mounting tool (not shown). I have. This prevents the second transport case 34 from being shaken or unfolded due to machine vibration, erroneous operation, or the like during a period other than the grain discharging operation, thereby hindering the operation or damaging the connecting portion 23. They try to prevent it.

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

  That is, the lower part of the grain discharging device 13 is connected and connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back of the grain tank 5, and the outlet 13 a of the grain discharging device 13 is provided. In the vicinity, in a combine provided with a conveyor-type transport device 70 capable of transporting grains to the rear or to the side, the grain transport section of the conveyor-type transport device 70 includes belts 46 and 47 and pulleys 39 and 41. Since the grains 14 are provided on the upper side of the conveyor 54 composed of 43, 45, etc., the grains 14 are transported while being gripped by the transport plates 46a, 47a and the upper transport surface, and between the grains 14 or between the grains 14. And the inner walls of the transport cases 33 and 34 are not rubbed, so that the grain 14 can be reliably prevented from being soiled or damaged.

A cleaning port 33b is opened above the first transport case 33, and a cleaning lid 36 is detachably attached to the cleaning port 33b. A cleaning port is also opened above the second transport case 34. The cleaning lid 36 is detachably mounted.
That is, as described above, the conveyor-type transport device 70 is provided with a cleaning opening, which is an opening for maintenance or the like, in the exterior transport cases 33 and 34 so as to be openable and closable. By simply removing the cleaning lid without removing the soil, dirt, dust, or residual grains inside can be easily removed, further minimizing grain contamination and damage, and further improving grain quality. Can be planned.

Conversely, as shown in FIG. 11B, when the drive pulley 39 is rotated about the drive shaft 38 in the direction of arrow 19 (clockwise in the figure), the grain discharge device 13 outputs the grain flow. The grains 14 that have fallen through the inlet 50 are stored on the upper conveying surface 46 b immediately below the grain inlet 50, and partly flow toward the bottom of the bag portion 33 c, and fall below the first conveying frame 33. The sheet is stored on the plate, and further conveyed to the conveyance end portion of the first conveyance section 21 as it is pushed to the conveyance end portion side (the left side in the drawing) by the rotated conveyance plate 46a.
Similarly, the grains 14 inherited by the connecting portion 23 are stored on the lower plate of the second transport frame 34 in the second transport portion 22 and are pushed by the transport plate 47a to the transport end portion side. And is discharged from the final discharge port 34a.

  That is, the lower part of the grain discharging device 13 is connected and connected to the bottom of the grain tank 5, the grain discharging device 13 is erected on the back of the grain tank 5, and the outlet 13 a of the grain discharging device 13 is provided. In the vicinity, in a combine provided with a conveyor-type transport device 70 capable of transporting the grains rearward or sideward, the grain transport portion of the conveyor-type transport device 70 is provided below the transport conveyor 54. Although rubbing between the grain 14 and the inner wall surfaces of the transport cases 33 and 34 is inevitable, damage to the grain is reduced as compared with a case where the discharging operation is performed by a screw-type discharging auger. Since it is difficult for soil and dust to enter and accumulate inside the belts 46 and 47, the occurrence of troubles such as biting into the drive pulley 39 is suppressed, and the grains are dried under heavy conditions with a lot of soil and dust. Can be effectively prevented .

  In the lower half of the bag portion 33c, a large number of small holes 52 are opened, and a guide member 65 having a circular arc shape in cross section provided along the rotation locus of the transport plate 46a in the bag portion 33c is also provided. A large number of small holes 65a are opened so that soil and dust smaller than the grain 14 fall through the small holes 52 and 65a. In the present embodiment, by providing a perforated member only in the vicinity of the grain transfer start end, at the initial stage of grain transfer in the transfer conveyor 54, soil and dust are discharged outside the machine body. However, the perforated member may be provided in the middle or at the end of conveyance of the conveyor-type conveyance device 70, and is not particularly limited as long as soil and dust are efficiently discharged to the outside of the machine body.

  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 transport conveyor 54, soil and dust brought along with the grains 14 from the grain discharging device 13 are removed. In addition, it is possible to easily and efficiently discharge the material to the outside of the machine without separately providing a discharging device, and it is possible to more reliably prevent the grain from being stained or damaged.

  Although the above-described embodiment is described based on the conveyor type transfer device (hereinafter, referred to as a “foldable storage type”) 70 capable of being stored in a foldable manner, next, unlike the foldable storage type 70, a grain discharging device is described. FIG. 12 to FIG. 14 also show a case of a conveyor-type transfer device (hereinafter referred to as a “rotation storage type”) 78 which can be turned and stored in the side of the machine without dividing the transfer unit after the work. This will be explained.

  The grain discharge device 15 is erected to the left of the machine body, and the lower portion of the grain discharge device 15 is communicated with the carry-out conveyor 11, while the upper portion of the grain discharge device 15 is connected to the grain guide member 117. The support member 118 communicates with the support member 118 via the support member 118. The support body 118 is rotatably and firmly supported by a fulcrum shaft 113 erected at substantially the center of the body at the rear of the body, and a long transport section 119 extends from the support body 118.

  At the time of storage, the transport unit 119 is placed on the receiving bracket 116 so that the transport unit 119 can be fixed by a fixture (not shown), and the storage position 106 at this time is such that the inclination of the transport unit 119 is slightly higher than horizontal. It is directed upward (elevation angle 120). That is, as described above, since the transport section 119 of the conveyor-type transport apparatus 78 holds and fixes the discharge port 123 side in the storage position 106 by inclining obliquely upward, even if the kernel remains in the transport section 119. Even when the grain discharge operation is completed, the grains and soil do not fall from the discharge port 123 during traveling or storage after storage, so that the storage warehouse is not polluted and the worker is safe. Maintenance work can be performed with care.

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

  Further, an elevating cylinder 114 is fixedly mounted on the support member 118, and a tip of a piston rod 114a of the elevating cylinder 114 is rotatably connected to a transport unit 119, and the rotating motor 115 is driven to drive the transport unit. After turning 119 to the left side position 108, by moving the piston rod 114 a up and down, the transport unit 119 is moved up and down as shown in the descending position 109 (depression angle 121) ⇔horizontal position 108 ⇔elevation position 110 (elevation angle 122). The inclination can be changed freely, and the discharge port 123 can be set to an appropriate discharge height. The inclination can be freely changed up and down at other discharge positions such as the right side position 107.

  That is, as described above, the transport unit 119 of the conveyor-type transport device 78 is configured such that the discharge port 123 side can be tilted obliquely downward at the discharge positions 107 and 108. By carrying out or tilting obliquely downward after the completion of the work, the kernels which are going to remain in the transport unit 119 are also rolled down from the outlet 123 and discharged, so that the kernels themselves are reliably prevented from remaining. You can do it.

1 is an overall side view of a combine according to the present invention. FIG. FIG. It is a rear side view which shows the support structure of a conveyor type conveyance apparatus. It is a plane arrangement view showing a rotation configuration of a grain tank. It is a rear view showing the state of grain discharge work to the left side. It is an enlarged side view of the connection part of a conveyor type conveyance apparatus. It is a side view which shows the grain discharge operation | work state to back. It is a rear view which shows the state of grain discharge work to the right side. It is a block diagram of attitude | position control and drive control of a conveyor type conveyance apparatus. FIG. 11A is an enlarged side view of a grain transport unit showing a grain transport situation, in which FIG. 11A shows a case where grain transport is performed on the upper side of the conveyor, and FIG. 11B shows a case where grain transport is performed on the lower side of the conveyor. is there. It is a side view which shows the storage state of the conveyor type conveyance apparatus of a rotation storage type. It is a top view similarly showing the kernel discharge operation | work state to back. It is a rear view similarly showing the kernel discharge operation | work state to the left side.

Explanation of reference numerals

5 grain tank
13 Grain discharging device
13a ・ 123 outlet
33 ・ 34 Transport case
33b Cleaning port
50 grain inlet
70 Conveyor
126 center axis of rotation