JPH06245624A - Pick-up header structure of combine harvester - Google Patents

Abstract

PURPOSE:A pick-up header structure of a general purpose combine harvester. CONSTITUTION:The rear end of a pick-up header 11 is rotatably pivoted to a platform of a feeder house and a thresher is connected to the back of the feeder house. In a combine harvester having the above structure, the pick-up header 11 is constructed of plural divided pick-up headers 11a, 11b corresponding to the ridges and guide plates 21, 22 are erected at both sides of the divided pick-up headers 11a, 11b. Accordingly, each divided pick-up header 11a, 11b can take the optimum raking posture for the corresponding ridge surface to surely rake the culms fallen on the ridge surface and supply the culms to the feeder house. The drop of culms in right and left directions can surely be prevented by the guide plates 21,22 to further improve the raking efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pickup header structure in a general-purpose combine.

[0002]

2. Description of the Related Art Recently, as one form of a general-purpose combine, as shown in FIGS. 10 and 11, a platform 10 of a feeder house in which a threshing device (not shown) is continuously provided at the rear part.
There is one in which the rear end of the pickup header 101 is swingably mounted in the vertical direction.

As shown in the figure, the pickup header 101 is formed of an endless chain conveyor having a width substantially equal to that of the platform 100, and a plurality of tines are attached at a predetermined pitch between the endless chains 102 and 103 arranged on both left and right sides. The rods 104 are attached, and a plurality of tine 105 for scraping is attached to each tine attachment rod 104. The endless chains 102, 103 are driven by transmitting power from the drive shaft of the crop-trapping drum 106 arranged at the front part of the platform 100 to the sprocket mounting shaft on the rear end side of the endless chains 102, 103. .

With this structure, the pickup header 101 is also operated in conjunction with the traveling of the combine, so that the grain culms such as soybeans placed on the ridges in a mowed state are efficiently scraped into the platform 100. ,afterwards,
It can be transferred from the platform 100 to the thresher.

[0005]

However, such a pickup header 101 still has the following problems.

That is, as shown in FIG. 4, the heights of the ridges 50 and 51 may be different, but since the pickup header 101 described above has an integral structure, the culms on the ridges 51 that are extremely tall are centered. I was forced to scrape into the ridge and left the grain culm on the low ridge 50, leaving the scraping efficiency poor.

Since the pickup header 101 is suspended from the platform 100 by the suspension chain 107, the pickup header 101 cannot follow the ridges 50 and 51 when the feeder house is moved up and down.

An object of the present invention is to provide a pickup header structure in a combine that can solve the above problems.

[0009]

SUMMARY OF THE INVENTION The present invention is a combiner in which a rear end of a pickup header is rotatably supported on a platform of a feeder house and a threshing device is connected to the rear of the feeder house. Is composed of a plurality of divided pickup headers corresponding to each ridge, and guide plates are provided upright on both sides of each divided pickup header, and relates to a pickup header structure in a combine.

[0010]

The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings.

(Embodiment 1) FIG. 1 shows a general-purpose combine A, which has a screw type handling barrel 3 on a machine body 1 which is made to run by a crawler 2 and below the handling barrel 3.
A threshing device 5 having a net-like body 4 such as a clamp net, and a swing sorting device 6 are provided.

A reaping device 7 is supported in front of the machine body 1 via a hydraulic cylinder 8 so as to be vertically movable.
A grain tank 9 for storing grains that have been threshed by the threshing device 5 is provided on the side of the threshing device 5, and in front of the grain tank 9, there is a cabin type operation equipped with a driving operation unit inside. A seat 10 is provided, and an engine is mounted behind the tank.

The reaping device 7 includes a pickup header 11 for scraping grain culms B such as soybeans which have been cut down on the ridges,
It consists of a feeder house 12 that transfers the grain culm B scraped by the pickup header 11 to the threshing device 5.

In FIG. 1, 13 is a feeder house.
Numeral 14 is a crop picking drum disposed in twelve platforms 12a, and 14 is a conveyor.

According to the present invention, in the structure of the combine A having the above structure, the pickup header 11 is divided into a plurality of divided pickup headers 11 as shown in FIGS.
It is characterized by being composed of a and 11b.

The structure of the pickup header 11 will be described below.
A specific description will be given with reference to FIGS.

As is apparent from FIGS. 1, 2 and 3,
In this embodiment, the pickup header 11 is a pair of parallel split pickups that are pivotally supported independently of each other at the front end of the feeder house 12 by a pivot shaft 20 that also acts as a drive transmission shaft. It is composed of headers 11a and 11b.

The split pickup headers 11a and 11b
Have substantially the same configuration, the configuration of the split pickup header 11a will be described below.

As is apparent from FIGS. 2 and 3, the split pickup header 11a is formed of a scraping conveyor having a width approximately half the width of the platform 12a of the feeder house 12.

The take-in conveyor is composed of the left and right guide plates 21, 2
2 and a plurality of rows of endless chains 60 arranged side by side in the width direction between the left and right guide plates 21 and 22, and a plurality of narrow and long fixed guide plates 61 interposed between the endless chains 60 and 60. Has been done.

In this embodiment, the endless chains 60 are respectively
Front sprocket wheel 60a and rear sprocket wheel
It is wound between 60b, and on the outer peripheral surface of the endless chain 60,
As shown in FIGS. 3 and 6, a plurality of the scraping tines 26 are mounted in a standing state at regular intervals by an attachment chain.

Further, in this embodiment, the front portion of the front sprocket wheel 60a and the fixed guide plate 61 are pivotally supported by the support shaft 40, and both ends of the support shaft 40 are pivotally supported by the left and right side plates 21, 22. Has been done.

On the other hand, the rear sprocket wheel 60b and the rear portion of the fixed guide plate 61 are pivotally supported by the pivot 20, and both ends of the pivot 20 pass through the left and right guide plates 21 and 22 and then the platform 12a of the feeder house 12. The left and right side plates are pivotally supported in the vertical direction.

Next, the power transmission path to the split pickup headers 11a and 11b will be described. As shown in FIG. 2, the drive shaft 27 of the crop picking drum 13 provided in the platform 12a of the feeder house 12 is projected. The drive sprocket wheel 28 attached to the end 27a is formed by interlocking the driven sprocket wheel 29 attached to the pivot 20 and the endless chain 30 in a cross belt manner.

With this construction, the split pickup headers 11a and 11b can be operated together in conjunction with the traveling of the combine A, and as shown in FIG. 4, they are placed on the ridges 50 and 51 in a mowed state. The grain culm B can be scraped into the feeder house 12 and then transferred from the feeder house 12 to the threshing device 5.

As shown in FIG. 4, the ridges 50 and 51 may have different ridge heights, but in this embodiment, the split pickup headers 11a and 11b are arranged around the pivot 20. In addition, since each of them is independently pivotally connected in a vertically swingable manner, the split pickup headers 11a and 11b can face the corresponding ridges 50 and 51 in the optimum scraping posture. , The grain culms B that have been mowed down on the respective ridges 50 and 51 can be reliably scraped and fed to the feeder house 12, and there is no leftover grain culm B.

Further, each divided pickup header 11a, 11b
Is a guide plate with a considerable height at each end.
Since 21,22 are provided, the grain culm B can be reliably prevented from falling in the left-right direction, and the scraping efficiency of the grain culm B can be improved also from this aspect.

Further, the guide plates 21 and 22 are provided with expanding portions 21a, 21b, 22a and 22b, respectively, at the front end and the rear end thereof, respectively. Therefore, it is possible to facilitate the scraping of the grain culm B into the divided pickup headers 11a and 11b and to smoothly flow the grain culm B from the divided pickup headers 11a and 11b into the platform 12a of the feeder house 12. be able to.

Further, each of the divided pickup headers 11a and 11b
Is substantially composed of a plurality of endless chains 60 each having a large number of scraping tines 26 mounted on the outer peripheral surface thereof, so that by reliably rotating the scraping tines 26, the grain culm B can be reliably fed. It can be supplied in the platform 12a of the house 12. Further, since a gap is provided between the endless chain 60 and the fixed guide plate 61, dust and the like can be removed through the gap, and the endless chain 60 can be prevented from being clogged.

As shown in FIG. 5, ruler wheels 31 and 32 are provided on the left and right guide plates 21 and 22 of the divided pickup headers 11a and 11b, and the supporting rods 33 and 34 are
The springs 35 and 36 are inserted into the cylindrical bodies 37 and 38 attached to the left and right side plates 21 and 22 so as to be vertically movable.

Therefore, as will be described later, the feeder house
Even when the height of 12 is adjusted by the hydraulic cylinder 8, the split pickup headers 11a and 11b have ridges 50 and 51 with different heights.
The upper surface of the grain can be followed, and the grain culm B can be reliably scratched.

Further, as shown in FIG. 1, a sensor bar S is attached to the bottom of the platform 12a of the feeder house 12 so as to be rotatable downward in the vertical direction by the ground pressure from the ridge surface. The sensor bar S can detect the ups and downs of the ridge and actuate the hydraulic cylinder 8 to move the feeder house 12 up and down to adjust the height of the entire pickup header 11.

(Embodiment 2) As shown in FIGS. 6 to 8, the pickup header 11 according to this embodiment is also composed of a pair of parallel split pickup headers 11a and 11b which are vertically swingable independently of each other. It is configured.

The split pickup headers 11a and 11b
Have substantially the same configuration, the configuration of the split pickup header 11a will be described below.

As is apparent from FIGS. 6 and 7, the split pickup header 11a is formed of a scraping conveyor having a width approximately half the width of the platform 12a of the feeder house 12.

The scraping conveyor is composed of the left and right guide plates 21, 2
2 and the endless chains 23 and 24 arranged side by side along the left and right guide plates 21 and 22, and an endless belt conveyor 25 having a width according to the ridge width between the endless chains 23 and 24. Have

In this embodiment, the endless chains 23, 24 are wound between the front sprocket wheels 23a, 24a and the rear sprocket wheels 23b, 24b, respectively.
As shown in FIGS. 8 and 6, a scraping tine 26 is attached to the outer peripheral surface of 4 at regular intervals.

On the other hand, the endless belt conveyor 25 is wound around a front pulley 25a and a rear pulley 25b.

Further, in this embodiment, the front sprocket wheels 23a, 24a and the front pulley 25a are pivotally supported by the support shaft 40, and both ends of the support shaft 40 are provided at the left and right side plates 21, 22.
Is pivoted to.

On the other hand, the rear sprocket wheels 23b and 24b and the rear pulley 25b are pivotally supported by a pivot 20, and both ends of the pivot 20 pass through the left and right guide plates 21 and 22,
The left and right side plates of the platform 12a of the feeder house 12 are pivotally supported in a vertically swingable manner.

Next, the power transmission path to the split pickup headers 11a and 11b will be explained.
Drive sprocket wheel mounted on the protruding end 27a of the drive shaft 27 of the crop picking drum 13 provided in the platform 12a of
28 is formed by interlocking the driven sprocket wheel 29 attached to the pivot 20 and the endless chain 30 in a cross belt shape.

With this configuration, the divided pickup headers 11a and 11b are operated together in conjunction with the traveling of the combine A, so that the grains placed on the ridges 50 and 51 in a mowed state as shown in FIG. The culm can be scraped into the feeder house 12 and then transferred from the feeder house 12 to the threshing device.

As shown in FIG. 9, the ridges 50 and 51 have different ridge heights. However, in this embodiment, the split pickup headers 11a and 11b are arranged around the pivot 20 respectively. Since they are independently pivotally connected to each other in a vertically swingable manner, the split pickup headers 11a and 11b can face the corresponding ridges of the ridges 50 and 51 in an optimum scraping posture, and each of them can face each other. Grain culm B in a state of being cut down on the ridges 50, 51
Can be reliably fed and fed to the feeder house 12, and there is no unpicked grain culm B left.

Further, each divided pickup header 11a, 11b
In the same manner as in Example 1, since the guide plates 21 and 22 having a predetermined height are provided at both ends thereof, it is possible to reliably prevent the grain stem B from falling in the left-right direction. From the aspect, it is possible to enhance the scraping efficiency of the grain culm B.

Further, each divided pickup header 11a, 11b
Since the endless chains 23 and 24 are used to drive, the scraping conveyor can be driven reliably, and since there is no endless conveyor belt 25 over the entire width, dust and the like can be removed from the endless chains 23 and 24. It is possible to prevent clogging of the conveyor belt 25.

[0046]

Industrial Applicability As described above, the present invention is a combine harvester in which a rear end of a pickup header is rotatably supported on a platform of a feeder house and a threshing device is connected to the rear of the feeder house. The pickup header is composed of a plurality of divided pickup headers corresponding to the ridges, and guide plates are provided upright on both sides of each divided pickup header.

Therefore, even if the ridges of a plurality of rows of ridges have different heights, the respective divided pickup headers can face the corresponding ridges in the optimum scraping posture, and on the respective ridges. The grain culms that have been mowed down can be reliably scraped and fed to the feeder house. Further, the guide plate can surely prevent falling of the grain culm in the left-right direction, and the scraping efficiency can be further enhanced.

[Brief description of drawings]

FIG. 1 is an overall side view of a combine having a pickup header structure according to a first embodiment of the present invention.

FIG. 2 is a plan view of the pickup header structure.

FIG. 3 is a perspective view of the pickup header structure.

FIG. 4 is a front view of the pickup header structure.

FIG. 5 is an enlarged structural explanatory view of a ruler wheel.

FIG. 6 is a perspective view of a scraping tine.

FIG. 7 is a plan view of a pickup header structure according to a second embodiment.

FIG. 8 is a perspective view of the pickup header structure.

FIG. 9 is a front view of the pickup header structure.

FIG. 10 is a perspective view of a conventional pickup header structure.

FIG. 11 is an operation explanatory view of the pickup header structure.

[Explanation of symbols]

 A combine B grain culm 5 threshing device 11 pickup header 11a split pickup header 11b split pickup header 12a platform 50 ridges 51 ridges

Claims (1)

[Claims] 1. A platform (12) for a feeder house (12)
The rear end of the pickup header (11) is rotatably pivoted to a) and the threshing device is located behind the feeder house (12).
In a combine of (5), the pickup header (11) is divided into multiple split pickup headers corresponding to each ridge.
(11a) and (11b), each split pickup header (11
A pickup header structure in a combine characterized in that guide plates (21) and (22) are provided upright on both sides of (a) and (11b).