JPH0718261Y2 - Drive unit for harvesting and conveying section of combine harvester - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a drive configuration of a harvesting and conveying section of a combine.

(B) Prior Art Generally, a combine lower transporting device has a plurality of lower transporting devices, and is configured such that transporting and merging are performed behind each of the lower transporting devices.

Among them, in the prior art, a drive shaft case for transmitting power to the reaping drive unit, each lower transfer device and the like is located immediately below or near the confluence portion of each lower transfer device.

(C) Problems to be solved by the device However, in the above-mentioned configuration, when the root portion of the grain culm is inherited at the confluence of the respective conveyors, straw debris and weeds fall and drive downward. Since it accumulates on the upper part near the shaft case and the drive sprocket part, it becomes a hindrance to the transportation, and the grain culms are easily clogged.

The present invention arranges the confluence part and the drive shaft case in order to solve such a problem.

(D) Means for Solving the Problems The object of the present invention is as described above, and a configuration for achieving the object will be described below.

In a configuration in which a confluence portion C with the rear part of the central lower conveyance device 13 is provided in the middle of conveyance of the left lower conveyance device 12, and a confluence portion B is provided at the rear ends of the left lower conveyance device 12 and the right lower conveyance device 11,
The drive shaft case 37 protruding from the drive sprockets 25, 29, 31 for transmitting power to the lower transfer devices 11, 12, 13
A drive shaft case which is arranged at a position between C and B below the conveying section and is long in the left and right directions, and is located away from the conveying action section of the merging section C.
37, a drive sprocket for driving the lower central transport device 13
The drive shaft case 37 supports the drive shaft case 37 at a position where the drive shaft case 37 exceeds the transfer operation portions of the right lower transfer device 11 and the left lower transfer device 12, and the drive shaft case 37 supports the right lower transfer device 11 and the left lower transfer device 12.
The drive sprockets 25 and 29 are installed.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the present invention will be described based on the structure of the embodiment shown in the accompanying drawings.

FIG. 1 is an overall front view of the combine, FIG. 2 is a plan view of a lower transfer device, and FIG. 3 is a plan view showing the relationship between the flow of grain stems and the drive shaft case in the present invention.

In this embodiment, the structure of a 5-row combine is shown.

The weeding rods 1 ... project from the front end of the cutting device of the 5-row combine harvester, and the weeds 2 attached to the front ends of the weeding rods 1 ... Weed the inverted grain culm.

And after the weeding, 5 raising devices A1, A2, A3, A4, A5
Then, the stock base is guided to the transport passage by the scraping and transporting devices 3R, 4,5, 6, 3L composed of belts with timing, and the stock root is cut by the cutting blade 17.

Stock part after cutting is 3 by Star Wheel 7R, 8,9,10,7L
Guided to the book transport path.

That is, the right end and the base portion on the right side of the right end are guided by the star wheels 7R, 8 to a single conveying passage formed between the rear right lower conveying device 11 and the guide rod 14.

Further, each stock portion in the other central portion is guided by the star wheels 9 and 10 to the transport passage formed between the rear lower central transport device 13 and the guide rod 16.

Further, the stock part at the left end is guided by the star wheel 7L to the rear left lower transfer device 12 and the transfer passage of the guide rod 15.

The respective guide rods 15, 14, 16 are elastically supported by the supports 18a, 18b, 19, 20 in a state of being pressed in the conveying side surface direction of the lower left, right, and center lower conveying devices 11, 12, 13. There is.

And on top of each lower carrier is the upper carrier
40, 41, 42 are arranged in an overlapping state.

Upper transfer device 40, 41 and lower transfer device 11, 12 on each of the right and left sides
Are configured in a V shape in a plan view, and are configured to join at the rear end. B is the junction.

Further, with the merging portion B as a starting end portion, a tip end vertical transfer device 21 and a stock source vertical transfer device 22 are arranged.

The stock-source vertical conveying device 22 is capable of adjusting long and short culm by rotating the tip up and down about a pivotal fulcrum at the rear end.

Further, the upper transfer device 42 and the lower transfer device 13 in the central portion are configured to join in the middle of the upper transfer device 41 and the lower transfer device 12 on the left side. C is the junction.

Then, the lower right conveyance device 11 is wound in the arrow direction by the drive sprocket 25 and the driven sprockets 23, 24, 26.

The left lower transport device 12 is wound in the arrow direction by the drive sprocket 29 and the driven sprockets 27, 28, 30.

Then, the lower transfer device 13 at the center is provided with the drive sprocket 31.
And the driven sprockets 32, 33, 35 are wound in the arrow direction.

The right and left left and center lower transfer devices 11, 12, 13 and the upper transfer devices 40, 41, 42 receive the power from the engine E as an input shaft 46.
And is driven by transmitting the drive shaft 38.

Reference numeral 47 is an input shaft case, and 37 is a drive shaft case.

The drive shaft case 37 includes the lower transfer devices 11, 1 on the right and left sides and the center, respectively.
It is arranged long across the left and right so that it crosses the lower back of 2,13. Then, the drive sprockets 25, 31, 29 are mounted on the upper portions of the drive shaft case 37.

In such a configuration, in the prior art, the confluence B of the lower left lower transport devices 11 and 12 and the left lower transport device 12 are used.
Almost directly below the confluence portion C of the central lower conveyance device 13, the reaping drive device 44, the drive shaft case 37, and the drive sprockets 25, 29, 31.
That is, the shaft support portion was located.

However, at the position just below each confluence B and C, the cutting drive 4
When 4 and drive sprockets 25, 29, 31 are located, when the root part of the grain culm is inherited and transferred at the confluence part B, hacks and weeds fall, and these contaminants are added to the upper part of the drive shaft case 37 below. Items may accumulate and cause transport problems,
It was the cause of the grain culm clogging.

On the other hand, according to the present invention, as shown in FIGS. 2 and 3, the reaping drive device 44 and the drive sprockets 25, 29 and 31 should not be located below the confluences B and C, that is, the reaping drive device. 44
And the positions of the drive sprockets 25, 29, 31 at the confluence
It is configured so that it is located away from B and C.

That is, there is a certain distance in the front-rear direction between the merging portion B of the lower left lower conveying devices 11 and 12 and the merging portion C of the lower left lower conveying device 12 and the central lower conveying device 13, so that there is a drive shaft between them. The case 37 is arranged, and the mowing drive device 44 is arranged in the right end direction, which does not become the transport course.

When power is transmitted from the drive shaft case 37 to the lower central transport device 13, the branch part 37a of the drive shaft case 37 is separated from the merging part without branching the drive shaft case 37 directly downward in the merging part C. The drive sprocket 31 is positioned above the drive sprocket 31.

Further, the input shaft case 47 is also arranged in the right end direction, which does not become the transportation course.

(F) Effect of the Invention Since the present invention is configured as described above, it has the following effects.

Firstly, the drive shaft case 37 is placed between the merging portions C and B below.
Since it is configured to be separated from the merging portions C and B, even when straw debris or weeds fall down when they are passed on to the root portion of the grain culm on these merging portions, the lower drive shaft case, etc. It did not deposit on the upper part, and it was possible to eliminate grain culm clogging due to this.

Second, the drive sprockets 25, 2 provided on the drive shaft case 37
The 9,31 are also placed as far away from the merging points C and B as possible, so that the straw shavings and weeds that are falling at the merging points C and B are caught in the drive sprockets 25, 29 and 31. ,
The problem of being unable to drive has disappeared. Further, the shaft supporting portions of the drive sprockets 25, 29, 31 are covered with the straw chips falling at the merging portions B, C, and the bearings and the oil seals can be prevented from being damaged. .

[Brief description of drawings]

FIG. 1 is an overall front view of the combine, FIG. 2 is a plan view of a lower transfer device, and FIG. 3 is a plan view showing the relationship between the flow of grain stems and the drive shaft case in the present invention. B, C …… Merge part 11 …… Right side lower transport device 12 …… Left side lower transport device 13 …… Center lower transport device 17 …… Mowing blade 37 …… Drive shaft case

Claims (1)

[Scope of utility model registration request] 1. A merging portion C with a rear portion of a central lower conveying device 13 is provided on the way of conveyance of a left lower conveying device 12, and a merging portion B is provided at a rear end of the left lower conveying device 12 and the right lower conveying device 11. In the configuration, the drive shaft case 37 in which the drive sprockets 25, 29, 31 for transmitting power to the lower transfer devices 11, 12, 13 are projected
Is arranged long in the left-right direction below the conveyor at a position between the merging portions C and B, and drives the central lower conveying device 13 to the drive shaft case 37 at a position distant from the conveying action portion of the merging portion C. The drive shaft case 37 supports the drive sprocket 31 and the drive shaft case 37 is located at a position beyond the transport action parts of the lower right transport device 11 and the lower left transport device 12. A combine harvesting and conveying unit drive device comprising twelve drive sprockets 25, 29.