JP2000224914A - Multiple row reaping combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the occurrence of conveying trouble such as grain culm clogging in a reaping conveying passage while simplifying the constitution and reducing the production cost. SOLUTION: This combine harvester is obtained by extendedly installing a main transmission shaft 15 transmitted and connected to a counter shaft 14 to the lower front, transmitting and connecting a first transmission shaft 16 directed to left and right to the front of the main transmission shaft 15, installing second vertically directed transmission shafts 17 from the first transmission shaft 16 over the respective raising up devices 7, interlocking and connecting the second transmission shafts 17 located at both left and right ends to second conveyors 10, interlocking and connecting the second conveyors 10 to first conveyors 9 and interlocking and connecting a third conveyor 11 to one lateral part of a counter shaft 14 so that the threshing depth can be regulated by shaking around a fulcrum P at the rear in the multiple row reaping combine harvester equipped with the >=3 raising up devices 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to three or more raising devices, a cutting device for cutting planted grain culms caused by the raising devices, and a device for scraping and transporting the cut grain culms rearward. A first or more first transporting device, a pair of left and right second transporting devices that gather and transport the harvested grain culm from the first transporting device to the left and right center, and a harvested grain culm from the second transporting device to the threshing device. And a third conveying device for feeding and conveying the same to a plurality of combine harvesters configured to transmit power to the third conveying device via a left-right counter shaft.

[0002]

2. Description of the Related Art Conventionally, in the above-described multi-cutting combine, the transmission to each of three or more pulling devices is controlled by an engine as disclosed in, for example, Japanese Patent Application Laid-Open No. 10-323111. A left-right counter shaft to which power is transmitted, a main transmission shaft extending forward and downward from the counter shaft, a left-right first transmission shaft connected to a front portion of the main transmission shaft, and a first transmission shaft. A second transmission shaft erected from one left and right side end to the upper side of the raising device on one side end thereof, and can be transmission-coupled to each raising device from the upper side of the second transmission shaft toward the other left and right end side. It was configured to extend through a left-right extending power distribution shaft, a plurality of hanging shafts suspended from the power distribution shaft to the upper part of each raising device, and a bevel gear for transmitting and connecting them. .

[0003] The transmission to the left and right first transfer device and the second transfer device is performed, for example, as disclosed in Japanese Patent Application Laid-Open No. 7-177814, etc., in the reaper transfer path. This is performed via a left and right vertical axis erected from the shaft toward the left and right first transport device and the second transport device, and a bevel gear or a worm gear for transmitting and connecting the first transmission shaft and the left and right vertical axes. Was configured to.

[0004]

However, according to the above-mentioned prior art, the power distribution shaft is extended over the upper portions of the respective raising devices, so that the power is not deteriorated by the power distribution shaft. If the distribution shaft is arranged low enough to be hidden behind the raising device, the tip side of the planted grain culm caused by the raising device will be caught by the transmission case surrounding the power distribution shaft, Transport troubles such as transport failures and transport clogging due to transport delays and entanglement of the paper.

On the other hand, when the power distribution shaft is disposed at a position sufficiently higher than the upper end of the raising device to avoid the transport trouble, the transmission case surrounding the power distribution shaft, the hanging shaft, etc. Since they are greatly exposed and their appearance deteriorates, it becomes necessary to provide a decorative cover for hiding them. In addition, the transmission case and the makeup cover make it difficult to see from the control unit to the position immediately before the raising device, thereby making it difficult to perform the aligning operation for correctly positioning the combine with the planted grain culm to be cut. Since the power distribution shaft, the hanging shaft, and the transmission case surrounding the power distribution shaft, the hanging shaft, and the like are disposed on the upper portion, the position of the center of gravity is increased, and the weight balance of the body is deteriorated. .

Further, in the above-mentioned conventional technique, the power transmission to the first and second transfer devices on the left and right is performed by the first transfer device.
Through the transmission shaft via the vertical axis and the bevel gear or worm gear, the transmission structure becomes complicated and the manufacturing cost increases. In addition, since transmission parts for the first transport device and the second transport device, which are more likely to be caught due to the complication, are disposed at a lower portion in the reaping transport path, mud, weeds, and the like that are transported together with the harvested grain culm. Of the grass from the reaping conveyance route downward,
Transport troubles such as poor transport of harvested grain culm and transport clogging caused by mud, weeds, and the like that accumulate in the transmission unit for the first transport device and the second transport device are likely to occur.

An object of the present invention is to suppress the occurrence of transport troubles such as clogging of grain stalks in a reaping transport path while simplifying the configuration and reducing the manufacturing cost.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, three or more pulling devices and a planted cereal stem caused by the raising devices are used. A mowing device for cutting, three or more first transporting devices that rake and transport the harvested grain culm rearward, and a pair of left and right second transporters that gather and transport the harvested grain culm from the first transporting device to the left and right center. A transport device, and a third transport device for feeding and transporting the harvested culm from the second transport device toward the threshing device, and a power transmission to them is performed through a left-right counter shaft. In the mowing combine, a main transmission shaft, which is transmission-connected to the counter shaft, extends forward and downward, and a first transmission shaft, which is directed left and right, is transmission-connected to a front portion of the main transmission shaft. From the transmission shaft to each raising device As well as bridged the second transmission shaft of vertical, they said second conveying device interlocked connected to a second transmission shaft which is located on the left and right ends of the second transmission shaft, and Te,
The first transfer device is linked to the second transfer device, and the third transfer device is linked to one side of the counter shaft so that the handling depth can be adjusted by swinging around a rear fulcrum. .

According to the first aspect of the present invention, the transmission to each of the raising devices is performed by a left-right counter shaft to which power from the engine is transmitted, and a main shaft extending forward and downward from the counter shaft. A transmission shaft, a first transmission shaft that is connected to the front of the main transmission shaft, a left-right direction, a second transmission shaft that extends from the first transmission shaft to each raising device, and a bevel gear that transmits and connects them. Will be done through.
On the other hand, the transmission to the left and right second transfer devices is performed using the second transmission shaft that transmits from the first transmission shaft to the left and right pulling devices, and the transmission to the first transfer device is the second transfer shaft. It will be performed using the device.

In other words, the power is transmitted to each of the raising devices without providing a power distribution shaft that extends over the upper portions of the respective raising devices and a hanging shaft extending from the power distribution shaft to each of the raising devices. In addition to the above, it is not necessary to provide a transmission case surrounding them at the upper part of each raising device, and thereby, the transmission case and the like are exposed from above and from above the raising device to make the appearance worse. There is no need to provide a decorative cover to hide them. As a result, the structure can be simplified, the weight can be reduced, and the manufacturing cost can be reduced. In addition, the position of the center of gravity can be kept low, and the weight balance of the body can be stabilized. Further, since the spike tip side of the planted grain culm caused by the pulling device does not catch on the transmission case or the decorative cover, such as the conveyance failure or the jamming of the spike tip due to the catch, the delay of the tip side conveyance or the entanglement. The occurrence of transport troubles can be avoided beforehand. In addition, since the upper part of each raising device is opened and the visibility from the control section to the position immediately before the raising device is improved, alignment work to correctly position the combine with the planted grain culm to be harvested, etc. Is easier to do.

On the other hand, a vertical axis extending from the first transmission shaft to each of the first transport device and the left and right second transport devices, a bevel gear or a worm gear for transmitting and connecting the first transmission shaft and the vertical axis, and the like are provided. Since the power can be transmitted to the first and second transport devices without forming a dedicated transmission unit for the transport device and the second transport device, the transmission structure for the first and second transport devices can be simplified. , And a reduction in manufacturing cost. In addition, the simplification of the transmission structure for the first transport device and the second transport device makes it possible to improve the passability of the mud and weeds and the like conveyed together with the harvested grain culm downward from the reaper transport path, so that the mowing transport is performed. Thus, it is possible to effectively prevent a transportation trouble such as a transportation failure of the harvested grain culm or a transportation clogging caused by accumulation of mud or weeds on the route.

In addition, since the third transfer device is linked to one side of the counter shaft located near the rear end of the third transfer device such that the handling depth can be adjusted, the power transmission to the third transfer device is achieved. The structure can be simplified. Also, the third
As a transmission structure for the transfer device, the transmission shaft is drive-coupled to a first transmission shaft or the like located near the front end of the third transfer device, and the third transfer device is connected to the transmission shaft such that the handling depth can be adjusted. However, in this configuration, since the transmission portion for the third transport device is disposed below the reaping transport path similarly to the first transmission shaft and the like, the mud and weeds that are transported together with the harvested grain culm are provided. And the like, so that it is difficult to pass downward from the reaper conveyance path. On the other hand, according to the first aspect of the present invention, the first transmission shaft is located at a position where mud and weeds are hardly conveyed, and where the mud and weeds and the like are hardly adversely affected downwardly from the cutting and conveying path. Since the transmission to the third transport device is performed at an upper rear portion of the reaper transport route than in the reaper transport route,
Compared to the case where power is transmitted to the third transport device from the first power transmission shaft located near the front end thereof, poor transport or transport of the harvested grain culm due to accumulation of mud or weeds on the mowing transport path. Transport troubles such as clogging can be reduced.

[Effect] Therefore, while simplifying the configuration and reducing the manufacturing cost, the stability of the weight balance of the machine body and the workability in the aligning operation can be improved, and at the same time, the grain in the cutting and conveying path can be improved. The occurrence of transport troubles such as clogging of culms can be effectively suppressed.

According to the second aspect of the present invention,
The invention according to claim 1, wherein the second ends at the left and right ends are provided.
An opening was formed in the transmission case surrounding the transmission shaft, and the conveyance band of the second conveyance device was inserted through the opening and wound around the second transmission shaft.

According to the second aspect of the present invention, the transmission to the second transport device is performed directly from the left and right second transmission shafts to the transport band of the second transport device wound therearound. become. In other words, the output shafts exclusively for taking out power from the left and right second transmission shafts are arranged side by side with the left and right second transmission shafts, and the transport belt of the second transport device is wound around those output shafts. As compared with the case where power transmission to the two-transport device is performed indirectly via an output shaft or the like, the power transmission structure can be simplified and the manufacturing cost can be reduced.

[Effect] Therefore, the structure can be simplified and the manufacturing cost can be reduced more effectively.

In the invention according to claim 3 of the present invention,
3. The invention according to claim 1 or 2, wherein the second transmission shafts at the left and right ends are formed into a two-part structure including a lower shaft portion and an upper shaft portion which are coupled by a bevel gear. The upper shaft portion is provided at a right angle to the first transmission shaft, and the upper shaft portion is tilted toward the center, so that the second transport device is interlockedly connected to the lower shaft portion.

[Action] Originally, the pulling device is simply arranged on the left and right ends because the driving sprocket is disposed on the inner side, which is the side of the raising path, in order to improve the raising force of the planted grain culm. When the second transmission shaft is straightly raised from the first transmission shaft toward the drive sprocket of the raising device, the distance between the left and right second transmission shafts decreases,
A disadvantage arises in that it is difficult to secure a space for disposing the first transfer device arranged side by side on the lower side in the meantime,
Further, in order to secure a space for disposing the first transfer device, when the second transmission shafts at the left and right ends are straightly raised from the first transmission shaft toward the lateral outer side of the raising device, the upper side of the raising device is moved upward. In this case, the projections may protrude outward in the lateral direction to make the appearance worse, or the visibility of the portion immediately in front of the raising device from the control unit may be deteriorated. While increasing the distance between the lower sides of the second transmission shafts at both ends, the upper sides of the second transmission shafts at the left and right ends can be positioned at the back of the raising device. The installation space of the first transfer device without deteriorating the appearance and the visibility from the control unit immediately before the raising device due to the upper side of the transmission shaft projecting laterally outward of the raising device. Secure enough So that it is Rukoto.

Incidentally, the second transmission shafts at the left and right ends are extended from the left and right ends of the first transmission shaft toward the driving sprocket of the raising device so that the inclined positions are such that the separation distance becomes smaller toward the upper side. This also makes it possible to position the upper sides of the second transmission shafts at the left and right ends on the back of the raising device while increasing the distance between the lower sides of the second transmission shafts at the left and right ends. In this case, In the meantime, due to the inclination of the second transmission shaft, the second conveying device interlockingly connected to the second transmission shaft has an inclined posture that becomes lower toward the center with respect to the conveying direction of the harvested grain culm, so that the harvesting is performed. This causes inconvenience that adversely affects the transportation of cereal stems. Therefore, in the invention described in claim 3, the left and right second transmission shafts are formed by a lower shaft portion provided at right angles to the first transmission shaft and an upper shaft portion which is inclined more toward the center toward the upper side. In addition to the two-part structure, the second transport device is linked to the lower shaft portion so that the second transport device follows the transport direction of the harvested grain culm. The transport of the harvested culm by the transport device can be suitably performed.

[Effects] Accordingly, deterioration in appearance and deterioration in visibility from the operating section to a position immediately before the raising device are caused by the upper portions of the second transmission shafts at the left and right ends projecting outward and laterally of the raising device. The space for disposing the first transfer device can be sufficiently secured without inducing
The transport of the harvested grain culm by the transport device can be suitably performed.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a front side of a self-removable combine. The combine is mounted on a front part of a traveling body 1 having a pair of right and left crawler traveling devices 1A. A cutting and conveying unit 2 for cutting and transporting the culm to the upper left rear is connected to the left and right swing shafts P so as to be vertically swingable.
Threshing device 3 that receives the harvested culm from the threshing and sorting process, and on the right side of the traveling machine body 1 is a grain tank 4 that stores the grain after the sorting process from the threshing device 3 and work. It is configured for three-row cutting, which is an example of multi-row cutting, by mounting the control unit 5 on which a rider rides.

As shown in FIG. 1 to FIG.
4 weeding tools 6 that act on the root side of the planted grain culm and vegetate
Three raising devices 7 for causing planted planted grain culms, a clipper-type cutting device 8 for cutting the root side of the planted planted culm, and a planted grain culm reaped by the cutting (cutting) Three first transporting devices 9 for scraping and transporting the grain culm toward the rear, and a pair of left and right second transporting devices 10 for transporting the harvested grain culm that has been scraped and transported rearward while collecting them at the left and right centers. A third transport device 11 that feeds and transports the harvested grain culms gathered in the left and right center toward the rear threshing device 3 while gradually changing the posture from the standing posture to the sideways posture, and
It is composed of a cutting frame 12 for supporting them.

As shown in FIG. 3 and FIG.
Are a raised sprocket case 7a, a driving sprocket 7b arranged at an upper portion on the path side (inside) of the raising of the planted grain in the raising case 7a, a driven sprocket 7c arranged at a lower portion of the raised case 7a, and their sprockets. 7
a rotating chain 7d wound around b and 7c, a plurality of raising claws 7e attached at regular intervals in a state in which the posture can be changed between a raised posture and a stored posture on the rotating chain 7d, and a raised case. A tensioning sprocket 7f disposed on the upper side of the return path side in 7a, and the like.
The raising of the planted grain culm is performed by the locking and lifting action of.

As shown in FIGS. 1, 2, 4 and 5,
Each first transport device 9 includes a driving pulley 9 disposed on the rear side.
a, a driven pulley 9b disposed on the front side, and a rotatable belt mechanism 9A including a rotatable belt 9c with projections wound around the pulleys 9a and 9b.
And a packer 9B disposed below each drive pulley 9a. The rotary belt mechanism 9A and the packer 9B engage and transport the scraped culm by scraping and transporting.

The second transporting device 10 on the left side includes a driving sprocket 10a disposed at the left end, a first driven sprocket 10b disposed at the center in the left and right directions, a driving pulley 9a and a packer 9B in the first transporting device 9 on the left side. And a second driven sprocket 10c disposed between the sprockets 10a and 10g, and a rotating chain 10d with a projection (an example of a transport band) 10d wound around the sprockets 10a to 10c. And a first driven sprocket 10e disposed above the driving pulley 9a of the first transporting device 9 on the left side, a first driven sprocket 10f disposed behind the driving sprocket 10e, and the sprockets 10e and 10f. A first rotating chain 10g, and a plurality of first locking transport claws attached to the first rotating chain 10g at regular intervals. 0h, the first driven sprocket 10f
, A second driven sprocket 10j disposed behind the second driven sprocket 10k, a second driven sprocket 10k disposed behind the second driven sprocket 10j, a second rotation chain 10m wound around the sprockets 10j and 10k, and a second rotation. Chain 10
m and a plurality of second locking and conveying claws 10n attached at regular intervals to the upper and lower two-stage locking and conveying mechanism 1
0B, and the gathering and transporting of the harvested grain culm is performed by the clamping and conveying action of the clamping and conveying mechanism 10A and the locking and conveying action of each of the locking and conveying mechanisms 10B.

As shown in FIGS. 2, 4 and 5, the second transporting device 10 on the right side includes a driving sprocket 10a provided on the right end, a first driven sprocket 10b provided on the left and right central portions, Second driven sprocket 10c disposed between the driving pulley 9a and the packer 9B in the first transfer device 9 of the first embodiment, and their sprockets 10a to 10c.
It has only a pinching and conveying mechanism 10A composed of a rotating chain with projections (an example of a conveying band) 10d wound around 10c and the like. Collecting and transporting are performed.

As shown in FIG. 1, FIG. 2 and FIG. 4, the third transfer device 11 includes a driving sprocket 11a provided on the left rear side, and a first driven sprocket 1 provided on the left side thereof.
1b, a second driven sprocket 11c provided above the first driven sprocket 10b in the second transporting device 10 on the right side, and a protruding rotating chain 11d wound around the sprockets 11a to 11c, and the like. And a driving sprocket 11e provided above the driving sprocket 11a.
Followed sprockets 11f arranged above the rear part of the first transporting device 9 on the right, and their sprockets 11e, 11f.
And a plurality of locking and conveying claws 11h attached at regular intervals to the rotating chain 11g.
1B, and feeds and transports the harvested grain culm by the gripping and transporting action of the gripping and transporting mechanism 11A and the locking and transporting action of the locking and transporting mechanism 11B. While passing to the chain 3a, the tip side of the harvested grain culm is guided into the threshing device 3. Further, the locking transport mechanism 11B of the third transport device 11 is configured to feed the feed chain 3a of the threshing device 3 from above the rear part of the first transport device 9 on the right side.
Therefore, the front side portion functions as the locking and transporting mechanism 10B of the second transporting device 10 on the right side to perform the gathering and transport of the harvested grain culm.

As shown in FIG. 1 and FIG.
A left-right counter shaft 14 having an input pulley 13 to which power from an engine (not shown) is transmitted is disposed on a shaft core P which is a fulcrum of vertical swing of the counter shaft. 14, the raising device 7, the mowing device 8, the first transport device 9, the second transport device 10, and the third transport device 11
The transmission for is performed.

The power transmission structure will be described in detail with reference to FIGS.
As shown in FIGS. 2 and 4 to 7, a main transmission shaft 15 extending forward and downward from the counter shaft 14 is provided at the left and right central portion of the counter shaft 14, and a front end portion of the main transmission shaft 15 is provided at the front end thereof. The left and right central portions of the first transmission shaft 16 are located at the left and right ends and the left and right center portions of the first transmission shaft 16. The lower ends of the vertically oriented second transmission shafts 17 extending from the first transmission shaft 16 to the corresponding raising devices 7. The drive shaft 7g of the corresponding raising device 7 is drive-coupled to the upper end of each second transmission shaft 17 via a bevel gear 18, respectively. That is, each raising device 7 includes a counter shaft 14.
The power input to the main transmission shaft 15, the first transmission shaft 16,
In addition, the power is transmitted through the second transmission shaft 17.

As a result, power can be transmitted to each of the raising devices 7 without providing a power distribution shaft or the like that is laid across the drive shaft 7g provided on the upper portion of each of the raising devices 7. There is no need to provide a transmission case surrounding them or a decorative cover for improving the appearance on the upper part of each raising device 7, so that the structure can be simplified and the manufacturing cost can be reduced accordingly, and the position of the center of gravity can be reduced. Can be kept low, and the weight balance of the aircraft can be stabilized. Further, since the tip side of the planted grain culm caused by each raising device 7 does not get caught on the transmission case or the makeup cover covering the power distribution shaft or the like, it is caused by transport delay or entanglement on the tip side caused by the hooking. It is possible to prevent the occurrence of a transport trouble such as a transport failure or a transport jam. In addition, as shown in FIG. 3, the space between the upper portions of the respective raising devices 7 is opened to improve the visibility of the weeding tools 6 and the like located immediately before the raising devices 7 from the control unit 5, so that the mowing is performed. It is easy to perform the alignment work and the like to correctly position the combine on the target planted grain culm.

As shown in FIG. 1, FIG. 2 and FIGS. 4 to 7, each second transmission shaft 17 is composed of a lower shaft portion 17b and an upper shaft portion 17c which are drivingly connected via a bevel gear 17a.
It has a split structure. Among the lower shaft portions 17b, the left and right lower shaft portions 17b are directed toward the upper portions of the corresponding left and right raising devices 7, and the lower shaft portions 17b at the center.
b are set at a right angle with respect to the first transmission shaft 16 in a state of going to the lower part of the corresponding central raising device 7. Among the upper shaft portions 17c, the left and right upper shaft portions 17c are inclined toward the center toward the corresponding drive shafts 7g of the left and right raising devices 7, and the center upper shaft portion 1
7c is tilted toward the drive shaft 7g of the corresponding central raising device 7, and is set to have a posture extending from the lower shaft portion 17b to which they are operatively connected to the driving shaft 7g of the raising device 7. Of the lower shaft portions 17b, the drive sprockets 10a of the holding and conveying mechanism 10A of the corresponding second conveying device 10 are externally fitted to the left and right lower shaft portions 17b so as to rotate integrally. That is, in a state where the lower shaft portions 17b of the left and right second transmission shafts 17 are also used as the drive shafts of the second transfer device 10, the corresponding left and right second transmission shafts 17 and
The transfer device 10 is interlocked and connected.

In the second transporting device 10 on the left, the second driven sprocket 10c of the clamping transporting mechanism 10A and the first driving sprocket 10e of the lower locking transporting mechanism 10B are connected to the left packer 9B and the first rotating shaft 10p. And are connected so as to rotate integrally. Also, the first driven sprocket 10f of the lower engaging and conveying mechanism 10B and the second driving sprocket 10j of the upper engaging and conveying mechanism 10B are the second driven sprocket 10j.
They are connected via a rotating shaft 10q so as to rotate integrally. That is, in the second transfer device 10 on the left,
The power from the transmission shaft 17 is transmitted to the upper and lower locking and conveying mechanisms 10B via the holding and conveying mechanism 10A.

The drive pulley 9a and the packer 9B in each of the left and right first transfer devices 9 are connected to the corresponding left and right second transfer device 1
0 and is connected so as to rotate integrally with the second driven sprocket 10c of the holding / conveying mechanism 10A. On the other hand, the first transporting device 9 in the center has its drive pulley 9a and packer 9
B and B are connected so as to rotate together, and the packer 9B is meshed with the packer 9B of the first transporting device 9 on the right side. That is, the corresponding left and right second transfer devices 10 and the first transfer device 9 are interlocked and connected, and
The first transfer device 9 at the center is connected to the transfer device 9 in an interlocked manner, and the power from the second transmission shaft 17 is transmitted to each first transfer device 9 via the second transfer device 10.

In short, the left and right second transfer devices 10 are interlockingly connected to the left and right second transmission shafts 17 that transmit to the left and right pulling devices 7, and the left and right second transfer devices 10 are connected via the left and right second transfer devices 10. By transmitting the power from the transmission shaft 17 to each first transfer device 9, a vertical axis transmitted from the lower first transmission shaft 16 to each of the first transfer device 9 and the second transfer device 10, and a first transmission shaft The first transfer device 9 and the second transfer device can be provided without providing a bevel gear or a worm gear for operatively connecting the first transfer device 9 and the second transfer device 10 to the first transfer device 9 and the second transfer device 10. 10, the first transfer device 9 and the second transfer device 10
Of the transmission structure and reduction of the manufacturing cost, and the simplification of the transmission structure improves the passability of the mud and weed, etc. conveyed with the stalks and stalks downward from the cutting and conveying path. Therefore, it is possible to effectively prevent transport troubles such as poor transport of harvested culm stems and transport clogging caused by accumulation of mud and weeds in the harvest transport path.

The second transfer device 10 on the left side, which is operatively connected to the second transmission shaft 17 on the left side, is provided with a locking transfer mechanism 10B and the first transfer device 9 on the left side is operatively connected thereto. The second transfer device 10 on the right, which is operatively connected to the second transmission shaft 17, is provided with the first transfer device 9 on the right and the first transfer device 9 at the center instead of having the locking transfer mechanism 10B. Therefore, the transmission load applied to the left and right second transmission shafts 17 can be balanced.

As shown in FIG. 4 and FIG.
The movable blade (not shown) is linked to a crankshaft 20 which is drivingly connected to the first transmission shaft 16 via a bevel gear 19. That is, the mowing device 8 includes the first transmission shaft 16.
The power from is transmitted.

As shown in FIGS. 1, 2 and 4, the third transfer device 11 is provided with a bevel gear 2 at the left end of the counter shaft 14.
1 and a driving sprocket 11a of a clamping and conveying mechanism 11A and a locking and conveying mechanism 1
The drive sprocket 11e of 1B is externally fitted so as to rotate integrally. That is, the power from the counter shaft 14 is transmitted to the third transfer device 11 via the third transmission shaft 22.

The third transfer device 11 is configured to swing around an axis P of a counter shaft 14 serving as a rear fulcrum by operation of an electric operation mechanism (not shown). From this configuration, by swinging the third transfer device 11 around the axis P, the front end side of the third transfer device 11 with respect to the harvested culm transferred by the first transfer device 9 and the second transfer device 10 is obtained. The position can be adjusted in the culm length direction of the cut cereal culm, whereby the length of introduction of the cut cereal culm ear to the threshing device 3 according to the cut culm culm length or the like can be adjusted. That is, the third transporting device 11 is configured to function as a handling depth adjusting mechanism that adjusts the handling depth of the harvested grain culm by the threshing device 3 by swinging around the axis P set at the rear end. Have been.

Thus, the third transfer device 11 is interlocked to the first transmission shaft 16 and the like located near the front end of the third transfer device 11 via the transmission shaft or the like, so that the third conveyance device 11 can swing around the axis of the transmission shaft to adjust the depth. When it is configured as possible, it is possible to avoid deterioration of the downward passability of the cut and transport path of mud and weeds that are transported together with the harvested grain culm, thereby resulting in poor transport and clogged transport of the harvested grain culm. , It is possible to reduce the possibility of transport trouble.

The third conveying device 11 is normally operated to swing downward when the harvested culm is short, and conversely, when the harvested culm is long, the third conveying device 11 is operated to ascend and swing. Since the occurrence of shallow handling caused by a short culm and the occurrence of deep handling caused by a long harvested culm can be prevented, the front side of the locking transport mechanism 11B of the third transport device 11 can be prevented. Part on the right side which also serves as the locking conveyance mechanism 10B.
In the transport device 10, the gathering and transport of the harvested grain culm can be suitably performed regardless of the length of the harvested grain culm.
On the other hand, in the second transport device 10 on the left side, since the upper and lower two-stage locking transport mechanisms 11B are provided as described above, the gathering transport of the harvested grain culm is suitable regardless of the length of the harvested grain culm. You can do it.

As shown in FIGS. 1 and 5 to 7, the raising device 7 such as the counter shaft 14 and the main transmission shaft 15, the reaper 8,
Each transmission system for the first transfer device 9, the second transfer device 10, and the third transfer device 11 is housed in the mowing frame 12. That is, the mowing frame 12 is configured to be able to be used also as a transmission case surrounding those transmission systems. For this reason, in the mowing frame 12, the frame portion 12A serving as a transmission case surrounding the lower shaft portions 17b of the left and right second transmission shafts 17 allows the rotation chain 10d with projections of the second transport device 10 to pass therethrough. An opening 12a is formed, and through this opening 12a, a rotating sprocket 10a with a projection is attached to a driving sprocket 10a mounted on the lower shaft portion 17b.
d is wound around.

[Other Embodiments] Other embodiments of the present invention will be listed below. The combine may be configured to perform four or more cutting operations. The left and right second transfer devices 10 may be formed in a symmetrical shape to facilitate component management and reduce manufacturing costs by sharing components. A seal member for reliably preventing foreign matter from entering through the opening 12a may be provided. The second transporting device 10 on the left side may be configured to perform the gathering and transport of the harvested grain culm from the clamping and transporting action by the clamping and transporting mechanism 10A and the locking and transporting action by the single locking and transporting mechanism 10B. . The second transporting device 10 on the right side is configured to collect and transport the harvested grain culm from the clamping and transporting action by the clamping and transporting mechanism 10A and the locking and transporting action by the single or two-stage locking and transporting mechanism 10B. And the third transport device 1
The front side of 1 may not be configured to function as the locking and transporting mechanism 10B of the second transporting device 10 on the right side. In the configuration in which each of the left and right second transport devices 10 includes the locking transport mechanism 10B, the first rotating chain 10g or the second rotating chain 10m of the locking transport mechanism 10B is used as a transport band of the second transport device 10. You may wind around the 2nd transmission shaft 17 of both right and left ends. Dedicated output shafts for extracting power from the second transmission shafts 17 at the left and right ends are provided side by side.
The transmission to zero may be performed indirectly via the output shaft or the like. The second transmission shafts 17 at the left and right ends may be configured in a non-divided structure with a single transmission shaft provided at right angles to the first transmission shaft 16.

[Brief description of the drawings]

FIG. 1 is a side view of the first half of a self-removing combine.

FIG. 2 is a plan view showing a configuration of a reaper transport unit.

FIG. 3 is a front view showing a configuration of a reaper transport unit.

FIG. 4 is a transmission system diagram showing a transmission configuration of a reaper conveyance unit.

FIG. 5 is a plan view of a main part showing an interlocking connection structure between the left and right second transmission shafts and a second transfer device;

FIG. 6 is a front view of a main part showing an interlocking connection structure between the left and right second transmission shafts and a second transfer device.

FIG. 7 is a side view of a main part showing a transmission structure of the second transfer device on the left side.

[Explanation of symbols]

 Reference Signs List 3 threshing device 7 pulling device 8 reaping device 9 first transport device 10 second transport device 10d transport band 11 third transport device 12A transmission case 12a opening 14 counter shaft 15 main transmission shaft 16 first transmission shaft 17 second transmission shaft 17a Bevel gear 17b Lower shaft portion 17c Upper shaft portion 22 Third transmission shaft P Rear fulcrum

Claims (3)

[Claims] The present invention relates to three or more raising devices, a mowing device for cutting planted grain culms caused by the raising devices, and three or more first device for scraping and transporting the cut cereal stems backward.
A transport device, a pair of left and right second transport devices that gather and transport the harvested grain culm from the first transport device to the left and right center, and supply and transport the harvested grain culm from the second transport device toward the threshing device. A multi-row cutting combine comprising a third conveying device and configured to transmit power to the third conveying device via a left-right facing counter shaft, wherein a main transmission shaft that is transmission-coupled to the counter shaft is directed forward and downward. And a first transmission shaft facing left and right is connected to the front of the main transmission shaft, and a second longitudinal transmission shaft is erected from the first transmission shaft to each raising device.
The second transfer shafts are interlockedly connected to the second transmission shafts located at the left and right ends of the second transmission shafts, and the first transfer device is interlockedly connected to the second transfer shafts, thereby forming the third transfer shaft. A multi-row combine combiner operatively connected to one side of the countershaft so that the device can be adjusted in handling depth by swinging about a rear fulcrum. 2. An opening is formed in a transmission case surrounding the second transmission shafts at both left and right ends, and a conveyance band of the second conveyance device is inserted through the opening and wound around the second transmission shaft. The combined harvester according to claim 1. 3. The second transmission shafts at the left and right ends are divided into a lower shaft portion and an upper shaft portion which are operatively connected via bevel gears, and the lower shaft portion is connected to the first transmission shaft. The multi-row cutting combine according to claim 1 or 2, wherein the combiner is provided at a right angle to the upper shaft portion, and the upper shaft portion is tilted toward the center so as to interlock and connect the second transport device to the lower shaft portion.