JPH06141650A - Reaper for combine harvester - Google Patents

Abstract

PURPOSE:To regularly carry out the raking in conveying of grain culms ranging from a grain culm raising up to the reaping and conveying regardless of long and short culms, especially eliminate the delay in the ear part of the long culms and simultaneously eliminate the quick passage of the ear part of the short culms. CONSTITUTION:This reaper for a combine harvester is obtained by constructing a raking in conveyor 3, located on the rear side of a grain culm raising up device 1 and capable of raking in and conveying grain culms reaped with a reaping blade device 2 from a plant foot conveyor 4 for nipping and conveying the plant foot part, a lower ear part conveyor 7 for engaging and conveying the ear part side with lugs 6 and 7 and an upper ear part conveyor 8 driven at a higher speed than that of the lower ear part conveyor 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester, and is intended to enhance the scraping and conveying properties of harvested grain culms in both long and short culms.

[0002]

2. Description of the Related Art Grain culms which are raised in a certain posture by a grain culm raising device are used in the process of cutting to transport, and in the process of cutting from long culm and short culm, the posture and the state of transport. Is different. In the case of long culm, it is necessary to convey the tip part to the rear quickly, and in the case of short culm, if the tip part is conveyed early, the culm tends to be disturbed.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a scraping / conveying device 3 for scraping and conveying a grain culm to be cut by a cutting blade device 2 on the rear side of a grain culm raising device 1 is provided for holding a stock base portion. By the stock carrier transport device 4 for transporting, the lower spike portion transport device 7 for engaging and transporting the spike portion side by the lugs 5, 6, and the upper spike portion transport device 8 which is driven faster than the lower spike portion transport device 7. The harvesting device for the combined harvester is configured.

[0004]

In the combine operation, the grain culm raised by the grain culm raising device 1 has its root part cut off by the cutting blade device 2 at the rear side, and the cut culm is
The stock base section is held and carried by the stock base transfer device 4, and
The tip portion is engaged and conveyed by the lugs 5 and 6 of the upper and lower ear portion conveying devices 7 and 8.

At this time, when the grain culm is short culm, the grain culm is engaged and conveyed mainly by the lug 5 of the lower ear part conveying device 7. Since the lug 5 speed of the lower ear part conveying device 7 is set to be relatively slow and suitable for short culm conveyance, the head part is not conveyed too early or too late to disturb the culm posture. . Also, when the grain culm is long culm, it is engaged and conveyed mainly by the lug 6 of the upper ear part conveying device 8 at a higher speed than the lower ear part conveying device 7, so that it may be delayed in a forward leaning posture. A certain culm makes the transportation of the tip part faster, makes the separation and conveyance from the grain culm which is in progress good, and does not disturb the culm.

In this way, regardless of the long culm and short culm of the grain culm,
In the long culm, high-speed-driving upper ear part conveying device 8 conveys the culm, and in short culm, the upper ear part conveying device 8 does not perform high-speed conveyance, but the lower ear part conveying device 7 conveys it at a relatively low speed. It can be transported in an orderly posture without disturbing the culm.

[0007]

[Example] The combine has a pair of left and right crawlers 9 and is mounted on a vehicle body on which a threshing device 10 and a grain tank 1 are mounted.
1, a control stand 12, a control seat 13, an engine E, etc. are mounted, and a mowing device 14 is provided at the front part so as to be vertically controlled. The mowing device 14 includes a mowing frame 15, a mowing blade device 2, a weeding rod 16, a grain culm raising device 1, a scraping device 19 including a star wheel 17 and a belt 18 with a lug, a stock carrier transport device 4, and a vertical movement device. It has a scraping conveyance device 3 and the like composed of the bristle conveying devices 8 and 7, and the upper end of the mowing frame 15 is rotated around the cutting input shaft 22 in the lateral direction with respect to the bracket 21 on the traveling transmission case 20. It is vertically rotatably supported and is supported by a lifting cylinder 23 which is hydraulically expanded and contracted.

Reference numeral 24 denotes a grain culm transporting device, which comprises a stock carrier transporting device 25 for holding and transporting the plant root part, and a bristle part transporting device 27 for engaging and transporting the tip end side with a lug 26.
The front part is provided so as to be vertically rotatable around the two parts, and the grain culms to be mowed and collected by the mowing device 14 are inherited and carried into the feed chain 28 part of the rear threshing device 10.

The grain culm raising device 1 comprises a horizontal frame portion 2 integrally formed from the lower end portion of the mowing frame 15 in the lateral direction.
9, a column 30 is provided, and a bracket 32 is provided downward from an upper frame 31 connecting between the columns 30 on the left and right.
And the grain culm raising device 1 is provided between the lower end of the bracket 32 and the weeding rod 16 on the lower front side, and the upper and lower ear part conveying device is provided on the rear side of the grain culm raising device 1. The sprocket shafts 35 of the drive sprockets 33 and 34 of Nos. 8 and 7 are provided so as to be inclined symmetrically with respect to the grain culvert raising device 1 in the front-rear direction. A bracket 36 that supports the sprocket shaft 35 is connected between the upper bracket 32 and a support arm 37 that is integral with the weed rod 16 side.

As shown in FIG. 3, FIG. 4, and FIG. 6, the stock-source transport device 4 near the grain-culm transport device 24 of the reaping device 14 has a sprocket pivotally supported on the lower end of a bracket 50 connected to a bracket 36, A chain 39 is provided so as to face the sprocket that is pivotally supported by the front boss 43, and the stock base of the cut grain culm is held and conveyed. In addition, as shown in FIGS. 1 and 4, the stock-source transporting device 4 closer to the control stand 10 has a sprocket whose rear end sprocket is pivotally supported by a bracket 41 on the horizontal cutting frame 29, and a front facing the sprocket. The chain 39 is stretched between the boss 43 and the sprocket. In addition, as shown in FIG. 2 and FIG. 4, the stock carrier transporting device 4 in the center portion on the left and right sides is provided with brackets 32, 36 from the upper frame 31 side above.
The chain 39 is laid between the sprocket of the sprocket shaft 35 located at the lower end of the bracket 42 supported by interposing the chain and the like and the sprocket of the boss 43 portion facing forward. A guide rod 40 is provided on the grain culm transport side of each chain 39.

The boss 43 is provided at the rear of each of the support arms 37, and the rotary shaft pivotally supported by the boss 43 has
In addition to the sprockets of each chain 39, a star wheel 44 is provided on the lower end side, and a rear part of a belt 45 with a lug is wound around the upper end side of the raised grain culm to be guided between the grain culm raising devices 1. While scraping from the left and right sides of the stock base, the stock is scraped to the rear, while the lower part of the stock is cut by the cutting blade device 2.

The lower ear part conveying device 7 comprises a chain with a lug having a long lug 5 and is driven by a sprocket 33 having a small diameter on the sprocket shaft 35.
The upper ear part conveying device 8 is composed of a chain with a lug having a short lug 6 and is driven by a large diameter sprocket 34 on a sprocket shaft 35. As a result, a speed difference is generated between the upper and lower pan section conveying devices 8 and 7,
The side becomes faster. Further, the lower ear part conveying device 7 is set at a position where it can engage near the ear part of the short culm, and the lower ear part conveying device 7
Is set at a position where it can be engaged near the ear of the long culm. Guide rods 47 and 46 are provided along the rotation loci of the tips of the lugs 6 and 5 of the upper and lower ear portion conveying devices 8 and 7.

The collection and delivery chain 48 is used for the stock carrier transport device 4
The harvested grain culm transported from the stock-source transporting device 4 to the rear side is collected to the grain culm transporting device 24 side to be inherited. The collecting chain 48 can be driven together with the chain 39 and the like by a sprocket of the stock carrier device 4 on the control stand 12, that is, a sprocket on a bracket 41. This pick-up chain 48
The rear end portion is stretched on a sprocket supported by a bracket 38 integrated with the rear end of the mowing frame 15.

The collecting chain 48 and the rear end of the stock carrier transporting device 4 on the side of the center and the grain culvert transporting device 24 are close to each other, but between them, the guide rods 40 are provided. The rear ends are provided close together. As a result, the harvested grain culms transported by each scraping transport device 3 are sent into the transport area of the collecting chain 48. As shown in FIGS. 4 and 6, a guide rod 49 for guiding the collected grain culms is provided in the scraping transporting device 3 portion near the grain culm transporting device 24 with respect to the bracket 50 mounted in the middle of the support column 30. And attach via the support bracket 51. The bracket 50 supports a sprocket for tensioning a part of the stock carrier transport device 4, and also supports a part of the sprocket and the like of the upper and lower spike portion transport devices 8 and 7.
Further, the lower ear part conveying device 7 can be attached to and detached from the support bracket 51.

As shown in FIGS. 7 and 8, the central guide rod 40 has its front end attached to the shunting rod 16 part, and the rear part thereof has a holder stay 52 removably attached to the bracket 36 and a vertical position. It is provided so as to be adjustable, and is elastically supported by this holder stay 52 via a spring 53. Another guide rod 54 is provided at the rear end of the stock carrier device 4 facing the guide rod 40 so as to extend along the front side of the collecting chain 45, and the grain culm guided by the guide rod 40 is The guide rod 54 takes over and guides the transfer chain 48 to transfer. A guide piece 55 made of a spring is provided at the tip of the guide rod 54, and is tensioned by the collecting chain 48.

The guide rod 40 of the stock carrier transporting device 4 near the control base 12 is arranged along the upper side surface of the star wheel 17 and around the bearing boss portion at the center of the star wheel 17 from the front side to the side side. Curved so as to detour to the rear side via the base, and the base is attached to the bracket 36,
The tip is close to the beginning of the collecting chain 48 as a free end.

The guide rod 56 is on the same side as the guide rod 40.
The starting end portion of the guide rod 56 is located and provided toward the guide rod 56 along the collecting chain 48. The end of the guide rod 56 is elastically held by the holder stay 57, and the guide rod 56 is tensioned toward the collecting chain 48. Also, this holder stay 5
7 can be attached to and detached from the bracket 36 together with the holder stay 52. Further, a guide piece 58 made of a spring material is provided at the tip end of the guide rod 56 and is tensioned to the collecting chain 48. Further, the holder stay 57 is provided with a guide piece 59 that elastically springs to the side of the stock feeder transporting device 4 on the side of the adjacent central portion, and smoothly guides the picking and feeding of the grain stems.

The transmission of each part of the mowing device 14 is carried out from the mowing input shaft 22 to the mowing frame 15 and the lateral frame 29.
The cutting blade device 2 is driven through the internal transmission mechanism, and further, each grain culm raising device 1 is driven through the transmission mechanism inside the support column 30, the upper frame 31, and the bracket 32 on one side, and the sprocket shaft 35 is moved. The upper and lower pan section conveying devices 8 and 7 and each stock source conveying device 4 are driven by being transmitted. The star wheel 44 and the belt 45 with lugs on the chain 39 side of each stock carrier 4 are
Although the power is transmitted by the chain 39, the star wheel 44 facing the star wheel 44 is directly transmitted by the meshing of the star wheels 44. Further, the collecting chain 48 is driven via the horizontal frame 29 and the transmission mechanism in the bracket 41 on the one side.

Further, the grain culm transporting device 24 is provided with the input shaft 22.
Is driven from the other end side.

[Brief description of drawings]

FIG. 1 is a side view of a part of a reaping device.

FIG. 2 is a side view of a part of the reaping device.

FIG. 3 is a side view of the mowing device section.

FIG. 4 is a plan view of the combine.

FIG. 5 is a front view of a part of the reaping device.

FIG. 6 is a perspective view of a part of the reaping device.

FIG. 7 is a plan view of a part of the reaping device.

FIG. 8 is a side view of a part of the reaping device.

[Explanation of symbols]

 1 Grain culm raising device 2 Cutting blade device 3 Scraping conveying device 4 Stock source conveying device 5 Lug 6 Lug 7 Lower ear part conveying device 8 Upper ear part conveying device

Claims (1)

[Claims] 1. A scraping / conveying device 3 for scraping and conveying a grain culm, which is on the rear side of the grain culm raising device 1, and which is reaped by a cutting blade device 2.
A stock origin carrying device 4 for holding and carrying the stock base part, a lower ear part conveying device 7 for engaging and carrying the ear parts side by lugs 5, 6, and an upper ear part that is driven at a higher speed than the lower ear part carrying device 7. A combine harvesting device configured by a transfer device 8.