JPS5912017Y2 - Combine grain conveyor - Google Patents

Description

[Detailed description of the invention] The present invention has a transverse transportation mechanism for harvested grain culms placed horizontally behind a pair of left and right pulling devices, and a reaping route for both raising and reaping grains between the pulling devices and the horizontal transportation mechanism. A pair of auxiliary conveyance mechanisms are provided to draw the grain culms rearward and guide them to the horizontal conveyance mechanism, and both of the auxiliary conveyance mechanisms are configured to be driven to rotate about their vertical axes in opposite directions so that their respective lateral outer portions serve as conveyance action parts. This invention relates to a grain culm conveying device for a combine harvester.

In this type of conveyance device, the pair of auxiliary conveyance mechanisms have their respective lateral outer portions serving as conveyance action portions for the following reasons.

When reaping a lodging grain culm, if the stock head is transferred to the horizontal transport mechanism early and the stock head is pulled into the machine, the tip of the lodged grain culm that remains is still in the process of being pulled up. , the particles are handled by the lifting claws, causing shedding.

Therefore, for the auxiliary transport mechanism located on the upper side of the horizontal transport mechanism, in order to obtain a relatively long pull-in route to the stock head, the auxiliary transport mechanism is A detour route is configured to supply the stock to the company.

On the other hand, the auxiliary conveyance mechanism located on the downstream side of the horizontal conveyance mechanism is close to the conveyance end of the horizontal conveyance mechanism and is in an advantageous position where it can prevent posture disturbance due to swinging of the stock base. Rather than using it as a detour route, the lateral outer portion, which is the transport surface near the end of the transport of the lateral transport mechanism, is used as the transport action part, giving priority to the effect of suppressing disturbances in grain culm posture.

For this reason, the pair of auxiliary conveyance mechanisms are driven in opposite directions so that their respective lateral outer portions serve as conveyance action parts. The grain stems that were transported horizontally by taking the detour route received the transport force only from the horizontal transport mechanism located behind the auxiliary transport mechanism, so when the grain volume was small and the grain tended to fall forward, it was difficult to transport the grain. There were times when I found it difficult to accept force.

The present invention aims to provide a grain culm conveying device for a combine harvester that can simultaneously improve lateral conveyance performance and simplify the drive structure for the pair of auxiliary conveyance mechanisms through simple improvements.

The technical measures taken by the present invention are as follows.

That is, in the grain culm conveying device for a combine harvester described at the beginning of the detailed description of the invention, both the auxiliary conveying mechanisms are wound and interlocked by a horizontally wound conveying protrusion chain, and
The chain is characterized in that the rear rotation path portion of the chain is configured as a lateral conveyance acting portion that rotates in the same direction as the lateral conveyance mechanism.

Therefore, with the grain culm conveying device of the present invention, the chain with protrusions and the lateral conveyance mechanism can support the lateral conveyed grain culm from the front and back, and can strongly and reliably convey the grain culm horizontally. Grain culms can also be transported well.

Moreover, since the pair of auxiliary conveyance mechanisms have their respective lateral outer portions as conveyance action parts, even if a chain is wound between them, the chain does not become an obstacle to the conveyance of grain culms. Since the chain with protrusions for assisting lateral conveyance is effectively used as the drive means for interlocking both auxiliary conveyance mechanisms, the drive structure for the pair of auxiliary conveyance mechanisms can be simplified at the same time.

Embodiments of the present invention will be described below based on the drawings.

Figure 1 shows the side of the front half of the combine, Figure 2 shows its plane, and Figure 3 shows its front.This combine consists of a machine base 1, a pair of left and right crawlers 2, 2, an engine 3 A reaping pre-processing section 7 is located at a fulcrum point P at the front of the traveling machine which is equipped with a control section 4, a threshing device 5, a grain collecting hopper 6, etc.
It is connected to the center so that it can move up and down freely.

At the front of the reaping pre-processing section 7, there are three lifting devices 8a,
8b and 8C are juxtaposed, and a clipper-type reaping device 9 is horizontally suspended near the ground behind them, and on the backs of the pulling devices 8a..., a shape is installed between each pulling device. Of the three grain culm pulling reaping routes a, l) and c, the grain culms of route a on the uncut side and route b in the middle are merged near the end of both routes, and route C on the most cut side is joined.
The grain culms are transported laterally and further merged into the two merging grain culms,
A grain culm conveying device is provided for conveying three rows of merged grain culms rearward and upward and supplying them to the feed chain 10 of the threshing device 5 in a sideways posture.

The present invention configures this grain culm conveying device as follows.

At the rear of the most uncut side pulling device 8a, a stock head conveying device 11 consisting of a chain with undulating claws, a tip conveying device 12 consisting of a chain with protrusions, and a tip auxiliary conveying device 13 consisting of a chain with undulating claws are driven. It is constructed in three stages with a common axis in an upward tilting posture, and the grain culms being pulled up in the most uncut side path a are pulled rearward to the right by the conveying devices 13 and 12 in the upper middle stage. After harvesting, the grain culms are transported laterally to the right by transport devices 12 and 11 in the middle and lower stages, and further rearwardly and upwardly by transport devices 11, 12 and 13 in all stages.

Further, at the upper position of the reaping device corresponding to the rear of the center and most cut side pulling devices b and C, there are a stock head horizontal conveyance device 14 made of a chain with undulating claws and a tip horizontal conveyance device 15 made of a chain with protrusions. are horizontally suspended in an upwardly tilted position with a common drive shaft, and above that, a cross-feeding section 1 is installed.
6a and the rearward feeding action portion 16b, it is approximately L when viewed from above.
A tip locking and conveying device 16 consisting of a chain with undulating claws wound in a letter shape is installed in an upwardly inclined position at the rear. A lateral conveying mechanism 17 is provided in the feeding section 16a to feed the reaped grain culm on the most cut side path C to the right.

The tip auxiliary conveyance device 13 is set higher than the tip locking conveyance mechanism 17.

Further, on the front side of the horizontal conveyance mechanism 17, a central path b
A raking rotary body 18a that acts on the grain culms of the grain culm and a stock auxiliary conveyance device 18b consisting of a rubber belt with protrusions are installed horizontally in two stages, upper and lower, with a common drive shaft.
An auxiliary conveyance mechanism 19 that pulls the grain culms rearward is constructed, and a rake rotary body 20a and a stock auxiliary conveyance device 20b of the same structure act on the grain culms of the already-cut side path C. An auxiliary transport mechanism 21 is provided.

These auxiliary conveyance mechanisms 19 and 21 are wound around and interlocked with a chain 22 with a conveyance protrusion horizontally suspended above them, and are driven to rotate about their vertical axes in opposite directions so that their respective lateral outer parts serve as conveyance action parts. At the same time, the rear rotation path portion of the chain 22 is configured as a lateral conveyance acting portion that rotates in the same direction as the lateral conveyance mechanism 17.

Further, vertical blades 24 are erected on the divider support rod 23 located between the uncut side and the center pulling devices 8a, 8b, and the tip conveying device 1 is installed on the left and right sides of the blades 24.
2 and the raking rotary body 1
8 and the grain culm guide wing 2 facing the stock auxiliary conveyance device 19
6 are provided protruding from each other.

Further, a grain culm guide rod 27 that faces the ear auxiliary conveyance device 13 extends in a cantilevered manner from the back side of the central lifting device 8b.

In addition, below the backward feeding action section 16b of the tip locking and conveying device 16, there is provided a stock head supporting conveying device which has a handling depth adjustment function and can swing up and down about the front horizontal axis fulcrum Q. 28
At the same time, a relay stock head conveyance device 29 is provided in a fixed position at the lower part of the terminal end side of the ear tip locking conveyance device 16.

The grain culm conveying device of the present invention is constructed as described above, and its conveying function will be explained next.

Grain culms on the uncut side and in the central pulling reaping paths a, t) are merged with each other by the conveying devices 11, 12, 13 and the auxiliary conveying mechanism 19, and are pulled rearward and harvested.

In addition, the grain culms in the already-cut side path C are pulled rearward by the auxiliary conveyance mechanism 21 and harvested, and then transferred to the stock head tip conveying devices 14, 15 and the cross-feeding section 1 of the ear tip locking conveyance device 16.
It is supported by the horizontal conveyance mechanism 17 consisting of 6a and the tip auxiliary horizontal conveyance device 22, and is laterally conveyed to the left, and laterally merges into the confluence of the two grain culms.

The merged three rows of grain culms are transferred to the rear feed acting parts of the left and right stock head conveyors 11 and 14, the rear feed actuators of the left and right ear tip conveyors 12 and 15, and the ear locking conveyor device 1.
After being sent rearward by the rearward feeding section 16b of No. 6 and the tip auxiliary conveying device 13, the seedlings are subsequently conveyed rearward and upward by the rearward feeding section 16b of the tip locking and conveying device 16 and the stock head clamping and conveying device 28. At the end of the conveyance, the tip of the grain culm is tilted sideways inward to the interior of the machine, and the stock head is taken over by the relay conveyance device 29, and furthermore, the grain head is transferred to the feed chain 10 in the sideways orientation. It will be supplied.

The power transmission of this combine harvester is performed as follows.

In other words, as shown in Fig. 5, the output of the engine 3 is branched into two systems, one branched power drives the threshing device 5 and its accompanying feed chain 10, etc., and the other branched power drives the hydraulic system. input to the gear transmission (HST) 30,
The speed change output from this transmission 30 is further branched into two systems and transmitted to each part of the traveling mission case 31 and the reaping preprocessing section 7.

[Brief explanation of the drawing]

The drawings show an embodiment of the grain culm conveying device for a combine harvester according to the present invention, and FIG. 1 is a side view showing the front half of the combine, FIG. 2 is a plan view thereof, FIG. 3 is a front view thereof, and FIG. 4 5 is a side view of the main part, FIG. 5 is a plan view of the main part, and FIG. 6 is a transmission system diagram. 8a, 8b... raising device, 17...
horizontal conveyance mechanism, 19, 21... auxiliary conveyance mechanism,
22...Chain with conveyor protrusion, b, C...
...Holding reaping path.

Claims (1)

[Scope of utility model registration request] A horizontal transport mechanism 17 for harvested grain culms is installed horizontally behind the pair of left and right lifting devices 8b, 8C, and the lifting devices 8b, 8
Between C and the horizontal conveyance mechanism 17, there are two lifting reaping paths b and C.
A pair of auxiliary conveyance mechanisms 19. 21, both auxiliary transport mechanisms 1
9. This is a grain culm conveying device for a combine harvester, which is configured to rotate the grain stalks 21 in opposite directions to each other about their vertical axes so that their respective lateral outer portions serve as conveying action parts, and wherein both the auxiliary conveying mechanisms 19,
21 is wound and interlocked by a chain 22 with a conveying protrusion wound horizontally, and the rear rotation path portion of this chain 22 is structured as a horizontal conveying action section that rotates in the same direction as the horizontal conveying mechanism 17. A grain culm conveying device for a combine harvester, characterized in that: