JP2002247911A - Combined harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that in the case of soft beans, in order to raise workability while preventing damage in discharge, the rear part of the machine body of a combined harvester is equipped with a bucket type grain discharge apparatus which can extend a discharge range by inclination or attaching and detaching an attachment, an outlet opening is not reached to a loading space of a truck, etc., stopping on a farm road, etc., and grain can not be directly discharged, further improvement in grain qualities by surely preventing stain and damage of grain during transportation to the outlet opening is strongly demanded. SOLUTION: A belt type conveying unit 70 capable of transporting grain is installed in the vicinity of outlet openings 13a/123 of the grain discharge apparatus 13. A grain inlet opening 50 to the conveying unit 70 is arranged on a rotary central shaft 126 of the conveying unit 70, the outside of the conveying unit 70 is armored with square transportation cases 33/34 and a cleaning opening 33b for maintenance, etc., is openable and closable installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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 grains in a grain tank. The present invention relates to a technology for directly discharging a grain from a top into a large storage container or bag provided on a carrier such as a truck stopped on a farm road or the like.

[0002]

2. Description of the Related Art Conventionally, the discharge of grains has been performed by a discharge auger or a bag packing device. Of these, in the discharge auger,
The grain has been 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 And
In the case of beans in which foreign matter such as soil is easy to mix on soft grains such as soybeans, the discharge operation after cutting, threshing and sorting is performed by the screw-type discharge auger having a long conveying distance, Conventionally, the grain is easily damaged and the quality of the grain is deteriorated.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. Was like that. 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 discharging device having a lower portion communicating with the grain tank at the rear of the machine body, and transported the grains upward by a discharging conveyor such as a bucket type conveyor in the grain discharging 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.

[0003]

However, the height of a farm road with trucks and the like is higher than that of a field with a combine, and obstacles such as ridges and gutters of blocks are located between the field and the farm road. In many cases, the transport of grains to the loading platform such as trucks requires a considerable transport height and transport distance, and the fixed type, tilting type, and any type of grain discharge device of the attachment type, such as trucks, can be used. There was a problem that it was difficult to directly discharge the grains to the bed. Further, there is a strong demand for further improvement of the grain quality by reliably preventing contamination and damage of the grain being transported to the discharge port.

[0004]

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described. That is, in claim 1,
A belt type capable of conveying grains in the vicinity of a discharge port of a grain discharge device in a combine in which a lower portion of a bucket type grain discharge device communicates with a grain tank and the grain discharge device is erected at the rear of the machine body. And the grain inlet to the carrier is provided on the rotation center axis of the carrier. In claim 2, a lower portion of a bucket type grain discharging device is communicated with the grain tank, and the grain discharging device is provided upright at a rear portion of the fuselage. Is provided, and the outside of the transfer device is covered with a square transfer case. In claim 3, the lower part of the bucket type grain discharging device communicates with the grain tank, and the grain discharging device is provided upright at the rear of the machine body. Is provided, and a cleaning case for maintenance or the like is provided in the transfer case of the transfer device so as to be openable and closable.

[0005]

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 a plan view thereof, FIG. 3 is a rear view thereof,
FIG. 4 is a rear side view showing a supporting configuration of the conveyor-type conveying device, FIG. 5 is a plan layout view showing a rotating configuration of a grain tank, and FIG. 6 is a rear view showing a state of grain discharging work to the left. 7 is an enlarged side view of the connecting portion of the conveyor-type conveying device, FIG. 8 is a side view showing the state of the grain discharging work to the rear, FIG. 9 is a rear view showing the state of the grain discharging work to the right side, and FIG. 11 is a block diagram of the drive control of the conveyor-type conveyor, FIG. 11 is an enlarged side view of the grain conveyor showing the state of grain conveyance, and FIG. FIG. 12 is a side view showing the storage state of the conveyor type conveyor device of the swivel storage type, and FIG. 13 is a plan view showing the same state of the grain discharging work backward,
FIG. 14 is a rear view showing the state of the grain discharging operation to the left similarly.

First, the overall structure of a combine according to the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 3, the chassis frame 10 is placed on the crawler 1.
The threshing unit 2 is mounted on the chassis frame 100, and a mowing unit 4 is provided in front of the threshing unit 2 via a feeder room 3, and a side of the threshing unit 2. The grain tank 5 is mounted on the side, and in front of the grain tank 5,
The operation part 6 is provided in a row.

Further, below the threshing unit 2, a swing sorting device 9 is disposed, and a bucket is connected to the end of the first conveyor 8 which is provided below the swing sorting device 9 and communicates therewith. An upright conveyor 7 is set up. The frying conveyor 7
In this example, a conveyor chain 16 is wound between sprockets 14 and 15 pivotally supported on upper and lower portions, and a plurality of buckets 17 are arranged in a row on the conveyor chain 16. The fines such as the first thing are conveyed to the arc-shaped receiving portion below the fry conveyor 7, and the fine granules in the receiving portion are scooped up by the bucket 17 on the conveyor chain 16, and the upper portion of the fry conveyor 7 is kept as it is. Transported to

[0008] The upper part of the grain conveyor 7 is connected to the grain tank 5 via a connecting pipe 68, and the granules conveyed to the grain tank 5 are rotated by a rotating leveling disk (not shown) or the like. It is flipped off, and is evenly dispersed and stored in the grain tank 5 evenly. At the lower gutter 10 of the grain tank 5, a screw-type carry-out conveyor 11 is axially mounted, and an end portion of the carry-out conveyor 11 is
The lower part of the grain discharge device 13 is connected to the lower part through the 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 supported on the upper and lower portions of the discharge conveyor 56, A plurality of buckets 66 are arranged in line on the conveyor chain 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 the transfer case 1
2 so that it can be detachably mounted at an angle so as to become lower toward 2, so that it is possible to freely switch between carrying by the carrying-out conveyor 11 and carrying by the guide member 90, and to select carrying-out means according to the situation. Is also good. For example, the grain tank 5
If it is desired to secure a sufficient storage capacity of the container, it is transported by the unloading conveyor 11 which hardly impairs the tank capacity,
On the other hand, if it is desired to reduce the damage to the grains by sliding down on the guide member 90 as much as possible, the upper space is reduced and the tank capacity is slightly impaired, but the transport is performed by the guide member 90 in which the grains are hardly damaged. is there.

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 rear surface of the grain tank 5, so that the rear part of the machine body is provided. By utilizing the space, the height and width of the aircraft can be reduced compared to the conventional long discharge auger or wide bagging device installed on the top or side of the aircraft, and damage caused by the aircraft during crop running is reduced. In addition to reducing the size, the storage space for the aircraft is reduced.

As shown in FIGS. 3 and 4, an upper portion of a grain guide member 69 is connected to and connected to an outlet 13a of the upper portion of the grain discharging device 13. The grain discharged from the outlet 13a is supplied to the outlet 13a.
Grain inlet 5 of conveyor-type conveying device 70 disposed below
The grain is guided to zero, and the transported grain is temporarily stored in the grain guide member 69.

With such a configuration, the grain discharging device 13
There is a large difference in the grain transfer speed between the bucket-type discharge conveyor 56 in the inside and the belt-type transfer conveyor 54 in the conveyor-type transfer device 70 due to a difference in the transfer method or the like, or pruning. Even when the amount of stored grains in the grain tank 5 fluctuates greatly, such as at the start or end, the grain guide member 69 functions as a buffer for the grain flow, and keeps the grain flow constant. Thus, it is possible to prevent the occurrence of 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, and the grain discharging device 13 is erected on the back of the grain tank 5. In the vicinity of the discharge port 13a, in a combine provided with a conveyor-type transport device 70 capable of transporting grains to the rear or side, a grain inlet 50 to the transport conveyor 54 of a belt conveyor of the conveyor-type transport device 70 is provided. A grain guide member 69, which is a temporary storage unit, is interposed between the grain discharge device 13 and a discharge port 13a from the discharge conveyor 56 of the bucket conveyor of the grain discharge device 13. With the flow of grains between the transfer devices 70 constant,
This enables stable grain discharge work without grain clogging.

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. The stays 111 and 112 are horizontally protruded from a support case 55 in which the threshing unit 2, the swing sorting device 9, and the like are provided, and the support case 55 is mounted and fixed on the chassis frame 100. .

The chassis frame 100 and the support stays 111.1
A pivot member 92 is rotatably fitted to the fulcrum shaft 104 firmly supported by the pivot 12, and the upper ends of upper and lower pivot stays 92a and 92b extending horizontally from the pivot member 92 The kernel tank 5 is rotatable from a position 62 to a position 63 around a rotation center axis 126 on the axis of the fulcrum shaft 104. Like that.

As described above, since the grain tank 5 is configured to be rotatable by the fulcrum shaft 104 protruding from the body, the grain tank 5 can be quickly and reliably opened.
The maintenance management work inside the combine is facilitated.

Next, the structure of the conveyor-type conveyor 70 according to the present invention will be described with reference to FIGS. 3, 4, 6, and 7. FIG. 3, 4, and 6.
As shown in the first, a first transport unit 21 that receives the grains discharged from the discharge port 13a and transports the grains to the middle of the conveyor,
A second conveyor 22 for conveying the grains conveyed to the middle of the conveyor to the end of the conveyor, and a rotatable connection between the second conveyor and the first conveyor 21 and a driving force for the conveyor And a support 24 that supports the base of the first transport unit 21 in a vertically rotatable manner.

First, the support 24 includes a support box 24a into which the base of the first transport unit 21 is inserted, and a support box 24a.
a rotating pipe 24b suspended from the lower surface and a rotating driven gear 24c fixed horizontally at the lower end of the rotating pipe 24b. 93a is externally supported by
The base of the support stay 93 is connected and fixed to the upper portion 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, and the support member 24 is supported by the fulcrum shaft 104. The first transport unit 2 supported by
1. The connecting portion 23 and the second transport portion 22 can be securely held. And it is on the axis of the fulcrum shaft 104,
A rotation center axis 125 corresponding to the center axis of the rotation pipe 24b
, The conveyor-type transfer device 70 can be turned.

That is, the lower part of the grain discharging device 13 is connected and 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. In the combine in which a conveyor-type transport device 70 capable of transporting grains backward or to the side is disposed in the vicinity of the discharge port 13a, the grain tank 5 is provided with a fulcrum shaft projecting from a chassis frame 100 supporting the body. Since the conveyor type transport device 70 can be supported by the fulcrum shaft 104 while being configured to be rotatable by the support shaft 104, the conveyor type transport device 70 can be stably discharged even during the grain discharging operation without being shaken. Thus, the grain can be reliably discharged to the target position, and the scattering of the grain can be prevented.

As shown in FIG. 2, FIG. 4, FIG. 6, and FIG. 7, the first transport section 21 is externally covered by a square pipe-shaped first transport case 33, and the first transport case 33 is transported. A drive shaft 38 is pivotally supported between the left and right side plates at the start end side, 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 on 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 around the driving pulley 39.

Then, on the outer peripheral surface of the first belt 46,
Are provided upright at predetermined intervals. Grains are stored between the transfer plates 46a, 46a,. Even if the slope of the grain becomes large, the grain 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. Because 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 at an upper end of the first transfer case 33 at the start of the transfer, and a fitting hole is formed in the upper part of the support box 24a immediately above the grain inlet 50. Into the fitting hole, a cylindrical support portion 69a formed below the grain guide member 69 is slidably fitted, and is conveyed from the grain discharge device 13 via the support portion 69a. The produced grains are dropped into the transport start end of the first transport unit 21.

In such a configuration, the outlet 13
The grains discharged from the a flow down from the support portion 69a into the grain inflow port 50, fall on the first belt 46 on which the transport plate 46a is erected, and are directed toward the second transport portion 22 as they are. It is transported.

At this time, the central axis 124 of the support portion 69a is
The rotation center axis 125 of the conveyor-type transfer device 70 coincides with the rotation center axis 125, and as described above, the rotation center axis 125
And the rotation center axis 126 of the grain tank 5 are 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. Is different from the case in which the conveyor-type conveying device 70 and the grain tank 5 are rotated during rotation.
Does not interfere with each other, and the space required for rotation can be reduced.

That is, in the combine, the central axis 124 of the tip of the discharge port of the grain discharge device 13, the rotation center axis 125 of the conveyor-type conveying device 70, and the rotation center axis 126 of the grain tank 5 are the same center. Since it is provided on the shaft 30, the conveyor-type transfer device 70 and the grain tank 5 can be rotated independently of each other, and the work of discharging the grain and the maintenance management inside the combine can be performed in parallel. The degree of freedom is improved, and the space-saving effect allows the body to be made compact and lightweight, thereby reducing parts costs and improving maintainability. In addition, as shown in FIG.
8 and a lifting shaft 49 is provided concentrically with the lifting shaft 49.
The base of the first transport unit 21 can be turned up and down around the center.

As for the second transport section 22, similarly to the first transport section 21, the outside has a square pipe-shaped second transport case 3.
A driven shaft 42 is pivotally supported on the transport start end side of the second transport case 34, and 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. , Transport plate 47a
Is wound around the second belt 47 erected on the outer periphery,
A plurality of belt support members 73 are also provided between the upper and lower transport surfaces of the second belt 47 to prevent the belt from sagging.

The transfer guide plates 48a and 48b are provided 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 connecting portion 23 is fixedly installed with an inclination such that the center side is higher. The inheriting guide plate 48a prevents the grains transported on the upper surface of the first belt 46 from sneaking under the first belt 46 and returning.
8b stores grains on the transfer guide plate 48b and facilitates scooping of 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 terminal side, and a cylindrical guide cover 80 for preventing scattering of grains is vertically provided at the final discharge port 34a. I have.

In such a configuration, the first transport unit 21
Are transported to the transport start end of the second transport case 34 by the transport plate 47a, without being spilled, and then transported on the second belt 47 to the transport end side. From the outlet 34a, it is dropped into the container 64 placed below.

In the connecting portion 23, as shown in FIGS. 6 and 7, a first stay 71 is fixedly mounted on a transfer end portion of the first transfer case 33, and a transfer start end portion of the second transfer case 34. A second stay 72 is fixedly mounted on the second stay 72. The second stay 72 and the first stay 71 are rotatably connected by a connecting arm 74, and the second stay 72 is rotatable around the first stay 71. The transport section 22 is rotated sideways so that the transport section 22 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 distal end surface of the first transport 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 transfer device 70 can be folded and stored in this way, a long transfer unit can be stored above the rear part of the machine body, the storage space for the conveyor can be reduced, and the grain discharging operation is not performed. Sometimes it is stored so that it does not interfere with work such as reaping,
Work efficiency is improved.

Transmission gears 81 and 82 are fitted and fixed on the same axis as the driven shafts 40 and 42, respectively.
When the second transport section 22 is deployed and is at the discharge position 76, the transmission gear 81 and the transmission gear 82 are engaged with each other, and the rotational power of the driven shaft 40 can be transmitted to the driven shaft 42. Thereby, the driving force of the first belt 46 by the driving pulley 39 is changed from the driven pulley 41 → the driven shaft 40 → the transmission gear 81.
-82 → driven shaft 42 → driven pulley 43 is transmitted to the second belt 47 in the order, the two belts 4 of the conveyor-type conveying device 70
6.47 can be driven.

Next, the belt 4 of the conveyor-type conveying device 70
6, 47 and FIG. 6, FIG. 6, FIG.
This will be described below. 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 and 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 to 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, and a double gear 97 is interposed between the bevel gear 98 and the bevel gear 96. The large bevel gear 97a meshes with the bevel gear 98, the small bevel gear 97b of the double gear 97 meshes 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 via the transmission mechanism including the transmission gear 102 and the like is applied to the conveyor shaft 11.
a → bevel gear 98 → double gear 97 → bevel gear 96 →
The power is transmitted to the drive pulley 39 in the order of the transmission 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 conveying 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. It is not necessary to provide a drive device, and the cost of parts can be reduced.
Since it is easy to synchronize 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, it is possible to perform a stable grain discharging operation without grain clogging. is there.

Next, a description will be given, with reference to FIGS. 4, 6, 8, and 9, of the structure of the conveyer-type transfer device 70 which is turned up and down. As shown in FIGS. 4 and 6, in the support 24 rotatably supported by the upper part of the fulcrum shaft 104, the support 2
The fixed member 103 is fixed to the rotating pipe 24b of No. 4,
The fixing member 103 is provided with a cylinder support shaft 25, and the base of a lifting cylinder 26 is supported by the cylinder support shaft 25, and the tip of a piston rod 26 a extending from the lifting cylinder 26 is the One transfer case 33 is rotatably connected to the left side plate.

Also, as shown in FIG.
A turning motor 27 is fixedly provided on the front surface of the support stay 111 for supporting the rotation shaft 4, and a turning shaft 27a extends upward from the turning motor 27. A turning drive gear is provided at the tip of the turning shaft 27a. 28 is fixedly mounted, and the turning drive gear 28
Is engaged with the rotation driven gear 24c on the side surface.

In such a configuration, the swing motor 2
By driving the lifting cylinder 7 and the elevating cylinder 26, as shown in FIGS.
The turning position and the elevating position can be set freely.

For example, when the rotation motor 27 is driven, the rotation driven gear 24 c is rotated by the rotation drive gear 28, and the supporting member 2 supporting the base of the conveyor-type transfer device 70.
4 is rotated about the fulcrum shaft 104, the discharge position of the conveyor-type conveying device 70 can be freely changed between the left side position 76⇔the rear position 84⇔the right side position 85,
The final discharge port 34a can be set at an appropriate discharge position. Further, when the lift cylinder 26 is driven at each of the turning positions 76, 84 and 85, the piston rod 26
a is extended and retracted, and the height position of the tip of the piston rod 26a is also raised and lowered.
0 can be freely raised and lowered about the lifting shaft 49, and the final discharge port 34a can be set to an appropriate discharge height.

That is, since the conveyor-type transfer device 70 is configured to be capable of turning and moving up and down, the turning position and the height of the grain discharge can be freely changed. It can be discharged to a tall container or truck without any problem at a position that is far away from the side, and a large amount of grain can be discharged quickly and reliably. Further, the conveyor-type transfer device 70
Since the fulcrum shaft 104 can be pivoted around, the strongly supported fulcrum shaft 104 suppresses vibrations during the traverse, enables a stable and rapid traverse to a predetermined discharge position, and shortens the pivot operation time. In addition to this, 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, the 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. Further, a detecting portion of a turning angle sensor 59 such as a potentiometer is connected to the turning driven gear 24c, and a detecting portion of a lifting angle sensor 60 such as a potentiometer is also connected to the lifting shaft 49. .

As shown in FIG. 10, the levers 57 and 58, the angle sensors 59 and 60, the swing motor 27, and the lifting cylinder 26 are all connected to the controller 51 of the combine. When the conveyor 58 is turned and moved up and down by operating the conveyor 58, 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 lifting cylinder 26 is automatically stopped.

As described above, by providing the monitoring device such as the angle sensors 59 and 60 and the restraining means such as the limit switch disposed at the limit position, the conveyor type transfer device 70 can be rotated and raised and lowered when the conveyor type transfer device 70 is turned. It is possible to prevent the transfer device 70 and the body part of the machine from being damaged due to interference between the parts or from outside.

As shown in FIGS. 6 and 10, a storage switch 61 is provided on the upper surface of the first transfer case 33.
When the leading end of the second transfer case 34 is rotated upward from the discharge position 76 to the storage position 75, the storage switch 61 is pressed by the lower surface of the second transfer case 34 to be turned on. Further, the storage switch 61 is also connected to the controller 51, and 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 carry-out conveyor 11, the grain discharging device 13,
Alternatively, the discharge drive of the conveyor-type transfer device 70 may be completely stopped.

As described above, the storage switch 6 is provided at the folding portion.
By providing the storage detecting means such as 1 and the like, it is ensured that when the conveyor-type conveying device 70 is folded and stored, the kernels may spill out from the connecting portion 23 due to an erroneous operation, or the kernels may overflow in the middle of the conveying path and cause clogging. Can be prevented.

A receiving bracket 55 is provided upright on the support case 55, and when stored, the second transport case 34 is placed on the receiving bracket 55 and can be fixed by a mounting tool (not shown). Like that. As a result, at times other than the grain discharging operation, the second
The transport case 34 is reliably prevented from being disturbed or unfolded, hindering the work, and preventing the connecting portion 23 from being damaged.

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 grains 14 that have fallen fall on the upper conveying surface 46b of the first belt 46,
It is stored between the adjacent transport plates 46a and is transported as it is to the transport end of the first transport unit 21. 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. 22
And is 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 and 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. In the vicinity of the discharge port 13a, in a combine provided with a conveyor-type transport device 70 capable of transporting the grain backward or to the side, the grain transport section of the conveyor-type transport device 70 is
Since it is provided above the conveyor 54 including the belts 46 and 47 and the pulleys 39, 41, 43, and 45,
The grains 14 are transported while being gripped by the transport plates 46a and 47a and the upper transport surface, and are not rubbed between the grains 14 or between the grains 14 and the inner wall surfaces of the transport cases 33 and 34. The contamination and damage of the grains 14 can be reliably prevented.

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. The mouth is opened, and the cleaning lid 36 is detachably mounted. That is, as described above, the conveyor-type transfer device 70
Is provided on the exterior transport cases 33 and 34 so that a cleaning port, which is an opening for maintenance or the like, can be opened and closed.
During maintenance inside the transport case, simply remove the cleaning lid without disassembling the entire case, and easily remove soil, dust, or residual kernels, etc., and reduce the contamination and damage of the kernels. Thus, the grain quality can be further improved.

Conversely, as shown in FIG. 11 (b), 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 Grain 1 falling through the grain inlet 50
4 is stored on the upper conveying surface 46b immediately below the grain inlet 50, and partly flows down toward the bottom of the bag portion 33c, and is stored on the lower plate of the first conveying frame 33. While being pushed by the moved transport plate 46a to the transport end portion side (the left side in the figure), it is transported as it is to the transport end portion of the first transport portion 21. The grains 14 inherited by the connecting portion 23 are stored on the lower plate of the second transport frame 34 in the same manner in the second transport portion 22,
The sheet is conveyed while being pushed to the conveying end portion side by a, 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, and the grain discharging device 13 is erected on the back of the grain tank 5. In the vicinity of the discharge port 13a, in a combine provided with a conveyor-type transport device 70 capable of transporting the grain backward or to the side, the grain transport section of the conveyor-type transport device 70 is
Since it is provided below the conveyor 54, rubbing between the grains 14 and the inner wall surfaces of the conveyor cases 33 and 34 is inevitable,
Compared with the case where the discharging operation is performed by using a screw-type discharging auger, damage to the grains is reduced, and furthermore, it is difficult for soil and dust to enter and accumulate inside the belts 46 and 47 during the transportation of the grains. It is possible to prevent the occurrence of troubles such as biting into the soil, and to effectively prevent the grain from being soiled under severely dry and soily or dusty conditions.

In the lower half of the bag portion 33c, a number of small holes 52 are opened.
Guide body 65 provided along the rotation locus
Also, many small holes 65a are opened, and the small holes 52.6 are formed.
Soil, dust, and the like smaller than the grain 14 are made to fall through 5a. In the present embodiment, by providing a perforated member only in the vicinity of the grain transport start end, in the initial stage of grain transport in the transport 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 the transfer of the conveyor-type transfer device 70,
The position is not particularly limited as long as it is a position where the dust and the like are efficiently discharged to the outside of the body.

That is, below the conveyor 54,
Perforated member 33c / 6 having many holes 52 / 65a opened
5, the soil and dust brought along with the grains 14 from the grain discharging device 13 can be easily and efficiently discharged to the outside of the machine without providing a separate discharging device. It is possible to more reliably prevent soiling and damage.

In the above embodiment, a conveyer-type transport device capable of being folded and stored (hereinafter referred to as a "foldable storage type").
Next, unlike the folding storage type 70, a conveyor-type transfer that can be turned and stored on the side of the machine without splitting the transfer unit after the grain discharging operation, unlike the folding storage type 70. A case of the device (hereinafter, referred to as a “swiring storage type”) 78 will be described below with reference to FIGS.

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 connected to the carry-out conveyor 11, while the upper portion of the grain discharge device 15 is connected to the grain guide. It communicates with the support 118 via the member 117. The support body 118 is rotatably and strongly 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 section 119 is placed on the receiving bracket 116 so that it can be fixed by a mounting tool (not shown) and the storage position 106 at this time.
Means that the inclination of the transport unit 119 is slightly upward from the horizontal (elevation angle 1
20). That is, like this:
The transport section 119 of the conveyor-type transport apparatus 78 has a storage position 1
In 06, since the discharge port 123 side was held and fixed at an angle to the upper side, even if the kernel discharge operation was completed while the kernels remained in the transporting unit 119, the storage outlet was moving or stored after storage. For example, since the grain, soil, and the like do not fall from the discharge port 123, the worker can perform maintenance work and the like without causing contamination of the storage warehouse.

The support member 118 is fitted over the support shaft 113 and is provided with a plurality of gears.
The transport unit 119 is rotated from the storage position 106 to the right side position 107 by driving the rotation motor 115 so that the kernels can be discharged from the rear of the machine.

Further, the lifting cylinder 1 is
14, the leading end of a piston rod 114a of the elevating cylinder 114 is rotatably connected to a transport unit 119, and the rotation unit 115 is driven to drive the transport unit 119.
Is turned to the left side position 108, and then the piston rod 114a is expanded and contracted, so that the transport unit 119 is moved up and down as shown in the descending position 109 (depression angle 121), the horizontal position 108, and the ascending position 110 (elevation angle 122). The inclination can be freely changed, 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 conveying section 119 of the conveyor-type conveying apparatus 78 is configured such that the discharge port 123 side can be tilted obliquely downward at the discharge positions 107 and 108. Going down,
After the work is completed, the transfer unit 1 is tilted obliquely downward.
Since the grains that are going to remain in the roll 19 also roll down from the outlet 123 and are discharged, it is possible to reliably prevent the grains themselves from remaining.

[0062]

The present invention is configured as described above.
The following effects are obtained. That is, as in claim 1, the lower part of the bucket type grain discharging device communicates with the grain tank, and in the combine where the grain discharging device is erected at the rear of the machine body, near the outlet of the grain discharging device. In addition, a belt-type transport device capable of transporting kernels is provided, and the grain inlet to the transport device is provided on the rotation center axis of the transport device. It is also possible to directly discharge the grain to the loading platform such as a truck stopped at the same place, and furthermore, the grain inlet is substantially at the same position regardless of the rotation of the conveying device, and the grain inlet from the outlet to the grain inlet is The structure can be simplified, the cost of parts can be reduced, and the maintainability can be improved.

According to a second aspect of the present invention, a lower portion of a bucket type grain discharging device communicates with the grain tank, and the grain discharging device is provided upright at a rear portion of the machine body. In addition, a belt-type transport device capable of transporting grains is provided, and the outside of the transport device is externally covered with a square transport case. Since the grain transfer unit can be provided below the transfer belt, the discharge operation is performed in comparison with the case where the screw-type discharge auger provided in the round transfer case is used.
Damage to grains during transportation can be reduced, and furthermore, soil and dust hardly enter and accumulate inside the belt during grain transportation,
Grain fouling can be effectively prevented under severely dry and soily or dusty conditions.

According to a third aspect of the present invention, a lower portion of a bucket type grain discharging device is communicated with the grain tank, and the grain discharging device is provided upright at a rear portion of the machine body. In addition, a belt-type transport device capable of transporting grains is arranged, and a transport case of the transport device is provided with a cleaning port that can be opened and closed for maintenance and the like. Since the inside soil, dust, and residual grains can be easily removed from the cleaning port without disassembling the whole, the contamination and damage of the grains during transportation are reduced, and the quality of the grains is reduced. Further improvement can be achieved.

[Brief description of the drawings]

FIG. 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 the conveyor-type transfer device.

FIG. 5 is a plan view showing a rotation configuration of a grain tank.

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 transfer device.

FIG. 8 is a side view showing the state of grain discharging work backward.

FIG. 9 is a rear view showing the state of grain discharging work to the right side.

FIG. 10 is a block diagram of attitude control and drive control of the conveyor-type transfer device.

11A and 11B are enlarged side views of a grain transport unit showing a grain transport status. FIG. 11A illustrates a case where grain transport is performed on the upper side of the conveyor, and FIG. 11B illustrates a case where grain transport is performed on the lower side of the conveyor. This is the case when performing.

FIG. 12 is a side view showing a storage state of a conveyer type conveyance device of a rotation storage type.

FIG. 13 is a plan view showing the state of the kernel discharging operation similarly to the rear.

FIG. 14 is a rear view showing the state of the kernel discharging operation to the left side in the same manner.

[Explanation of symbols]

 5 Grain tank 13 Grain discharge device 13a / 123 Discharge port 33/34 Transport case 33b Cleaning port 50 Grain inlet 70 Transport device 126 Rotation center axis

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akihiko Nakaya 1-32 Chayacho, Kita-ku, Osaka City, Osaka Prefecture Inside Yanmar Agricultural Machinery Co., Ltd. Inside the Company (72) Inventor Shinji Ishii 200 Asakura, Yoka-cho, Yabu-gun, Hyogo Prefecture Yoka Iron Works Co., Ltd.

Claims (3)

[Claims] 1. A combine in which a lower portion of a bucket type grain discharging device is communicated with a grain tank, and the grain discharging device is provided upright at a rear portion of the fuselage. A belt-type transport device capable of transport is provided,
The grain inlet to the conveying device is provided on a rotation center axis of the conveying device. 2. A combine in which a lower portion of a bucket type grain discharging device communicates with a grain tank, and the grain discharging device is erected at the rear portion of the fuselage. A belt-type transport device capable of transport is provided,
The combine is characterized in that the outside of the transfer device is covered with a square transfer case. 3. A combine in which a lower portion of a bucket type grain discharging device communicates with a grain tank, and the grain discharging device is erected at the rear of the fuselage. A belt-type transport device capable of transport is provided,
A combine, characterized in that a transfer opening for maintenance and the like is provided in a transfer case of the transfer device so as to be openable and closable.