JPH0846A - Grain culm conveyor for combine harvester - Google Patents

Abstract

PURPOSE:To precisely carry out the delivery of grain culms from a rear con veyor to a long and short culm regulating conveyor. CONSTITUTION:This grain culm conveyor for a combine harvester is constituted by housing a transmission mechanism 22 for driving a plant foot nipping and transferring chain mechanism (14B) on the left side and an ear tip engaging and transferring mechanism (15B) in a rear conveyor in a transmission case 23 arranged in a vertical intermediate part of both the transfer mechanisms. The ear tip engaging and transferring mechanism (15B) on the left side is rotated and driven by a rotating shaft 21 located in the front of the transmission mechanism 22 so as to rotate and drive the plant foot nipping and transferring chain mechanism (14B) on the left side with another rotating shaft 20 located at the rear from the rotating shaft 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine grain culm conveying device for merging a plurality of rows of grain culm into an oblique feed and transferring it to a rear threshing section.

[0002]

2. Description of the Related Art A plurality of rows of grain culm groups that are scratched by a plurality of grain culm scraping devices are provided with a pair of left and right stock holding and transfer chain mechanisms that are narrowed toward the conveying direction, and each stock holding means. A post-conveyance transport device consisting of a pair of left and right tine type tip locking transport mechanism arranged above the transport chain mechanism transports and merges to the central part in the cutting width direction, and delivers it to the following long / short culm adjustment transport device. A combined grain culm transporting device configured as described above is known.

[0003]

However, as shown in FIG. 3, the conventional one has a pair of right and left stock holding clamp transfer mechanisms (101) and (102) and a tine type tip locking transfer chain. Of the post-conveyance conveying device (D) including the mechanisms (103) and (104), the stock-source-holding-and-transfer-chain mechanism (102) located on the left side in the traveling direction is the tip end locking and transfer mechanism.
Since the rotary wheel body fitted to the rotary shaft (105) for driving (104) is hung around and is coaxially driven in common by the rotary shaft (105), there is the following problem.

That is, in the conventional one, the tine (106b) of the tip side locking transfer mechanism (106a) of the long and short culm adjusting and conveying device (106) which moves up and down, and the rearward conveying device (D).
Since it must be separated to the extent that it does not come into contact with the tine of the left side tip locking and transferring chain mechanism (104), the left side tip locking and transferring mechanism (104) is coaxially driven by the rotating shaft (105). Shareholder holding transfer chain mechanism
There is a large gap between the terminal end of (102) and the stocker side holding transfer chain mechanism (106c) of the long and short culm adjusting and conveying device (106), and the delivery to the long and short culm adjusting and conveying device (106) is in a throwing state. However, there was a problem that the inheritance was unstable and problems such as disturbance and stagnation of grain stems were likely to occur. SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved combine grain culm transporting device for overcoming the above-mentioned problems of the conventional device.

[0005]

In order to achieve the above-mentioned object, a combine grain culm transporting apparatus according to the present invention comprises a plurality of grain culm scraping devices (8A) (8B) (8C). A pair of left and right stock holding and transfer chain mechanisms (14A) (14B) that are provided in a narrowed shape in a row in the direction of the grain culms
And a tip transporting mechanism (15A) (15B) arranged above each stock holding carrier chain mechanism
(10) In a combine configured to convey to the central portion in the cutting width direction and deliver to the long / short culm adjusting / conveying device (9), the left-side stock holding device of the post-conveying conveying device (10) Transfer chain mechanism (14B) and tip locking transfer mechanism (15
B) and a transmission mechanism (22) for driving both transfer mechanisms (14
(B) (15B) a transmission case installed at an intermediate position in the vertical direction
(23) is housed and the left shaft tip locking transfer mechanism (15B) is rotatably driven by the rotary shaft (21) located at the front part of the transmission mechanism (22) and at the rear of the rotary shaft (21). The other rotary shaft (20) located on the left side of the stock holding and holding chain mechanism (14B)
Is driven to rotate.

[0006]

In the grain culm conveying device according to the present invention, the transmission mechanism for driving the left side stock holding and transferring chain mechanism and the tip end locking and transferring mechanism is housed in a transmission case arranged at an intermediate position in the vertical direction between the two. Then, the rotary shaft located in the front part of the transmission mechanism rotationally drives the left tip tip locking transfer mechanism, and the other rotary shafts located rearward of the rotary shaft also rotationally drives the left stock pinching transfer chain mechanism. Therefore, the left end of the stock holding and transfer chain mechanism is located close to or wrapped to the transfer end of the right stock holding and transfer chain mechanism and the transfer start end of the long / short culm adjusting transfer device. Grain culm is transferred from the post-conveyance carrier to the long / short culm adjusting / conveying device while the grain culm is captured, and the edge of the transmission case is transferred from the post-conveying carrier to the long / short culm adjusting / conveying device. Also played the role of supporting the culm of the grain culm in the process It stable delivery of culms was that does not occur, such as turbulence and stagnation become is performed.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a schematic plan view of a harvesting and conveying section of a combine in which the device of the present invention is implemented, and FIG. 2 is a left side of the harvesting and conveying section. FIG. The reaping frame of the illustrated reaper carrying section
The frame (1) is a transmission case that is mounted on the vehicle body so that it can move up and down.
Extend a plurality of weeding pipes (3) ... from (2) to the front,
Fixed grass bodies (4) are attached to the front ends of the respective grass pipes (3).

Then, a tine type grain culm raising device (5A) (5B) (5C) is provided obliquely rearward and upward from the rear part of the fixed grass body (4).
, And the rear upper part of each grain culm raising device is supported by the supporting case (6) ... Standing on the transmission case (2), and the supporting case (6). Driven by the raising drive shaft housed inside, between the right grain stalk raising device (5A) and the center grain stalk raising device (5B), a single grain stalk raising path (a) To
In addition, a two-row pulling path (b) is formed between the center grain culvert raising device (5B) and the left grain culvert raising device (5C) to form 3
It is configured as a reaping and transporting unit for strip cutting.

A reciprocating cutting blade (7) is provided laterally at the lower rear part of the grain culm raising devices (5A) (5B) (5C) in a direction traversing the grain culm raising routes (a) and (b). , The cutting blade (7) is a transmission case.
It is driven by a cutting blade drive mechanism (not shown) provided in (2). And above the cutting blade (7), the cutting blade (7)
Grain stalk scraping devices (8A), (8B) and (8C) that perform a scraping transfer action at a portion slightly from the front to the rear of the plant are provided, and those crop stalk scraping devices (8A), (8B) ( 8
A post-conveyance transport device (10) is provided for transporting the grain culm scraped by C) to the central portion in the takeover and cutting width direction to merge the grains and feed it to the transport start end of the long-short culm regulation transport device (9). There is.

Each of the grain culm scraping devices (8A), (8B) and (8C) has a longitudinal rotary shaft (11) arranged above the cutting blade (7).
A) (11B) (11C) is attached to the bottom of the star wheel (1
2A), (12B), (12C), and the endless belt (13) with an elastic take-up protrusion that is hung on the rotary wheel that is fitted on the upper part of each rotary shaft and the driven wheel that is appropriately located in front of it. It is configured to be rotationally driven by a transmission structure described later. And the grain culm scraping device at the right end (8A)
Is involved in the scraping of one row of grain culm that moves through the grain culm raising path (a), and the other two grain culm scraping devices (8B) (8C)
It is designed to be involved in the two-row grain culm that moves through the raising path (b).

The post-conveying and conveying device (10) is provided with a pair of left and right stock-holding transfer chain mechanisms (14A) and (14B) provided in a tapered shape in the transfer direction, and above each stock-source holding transfer chain mechanism. Tip locking transfer mechanism (15A) (15B)
It consists of and. Among the post-conveying and conveying device (10), the stock holding mechanism transfer chain mechanism (14A) and the tip locking transfer mechanism (15A) on the right side are the transmission mechanism from the pulling drive shaft in the support case (6) at the right end. It is designed to be driven by a drive shaft (17) input via (16), and a stock source holding and transfer chain mechanism.
(14A) is hooked on a sprocket (18) fitted to the rotating shaft (11A) at the right end, and the grain-scraping device (8) at the right end.
It has a transmission configuration that drives A) in common.

[0012] In addition, on the left side of the stock holding holding chain mechanism (1
4B), the tip locking transfer mechanism (15B), and the central and left side grain scraping devices (8B) and (8C) are rotationally driven by the following transmission configurations. Left end support case
The pulling drive shaft (19) in (6), the rotary shaft (20) of the left stock holding and transfer chain mechanism (14B), and the rotary shaft (21) of the left tip tip transfer mechanism (15B). The transmission mechanism (22) arranged in a triangular shape and chained around them has a stock source holding and transferring chain mechanism (14B) and a tip end locking and transferring mechanism on the left side.
(15B) a transmission case provided at an intermediate portion in the vertical direction
It is accommodated in the space (23).

The left tip end locking and transferring mechanism (15B) is rotatably driven by a rotary shaft (21) extending upward at the front portion of the transmission case (23).
Also, at the rear of the transmission case (23), the same case (23)
Another rotating shaft (20) extending downward from the
(23) A sprocket (24) fitted to a rotary shaft (11C) located at the left end of the chain (23) is hooked with a chain with a transport protrusion to form a stock holding and transfer chain mechanism (14B) on the left side. When the original holding transfer chain mechanism (14B) is driven, the leftmost grain rake device (8C) is commonly driven to rotate, and the star wheel is moved.
By engaging the (12B) and (12C), the central grain rake device (8B) is also rotationally driven in the intended direction.

[0014] The left side stock holding holding chain mechanism
At the end of (14B), there is a linear hanging part (a),
As shown in FIG. 1, this linear hanging portion (a) projects outward from one edge portion (b) of the triangular transmission case (23) in a plan view to hold the right side stock unit. Transfer chain mechanism (14
It is located close to or wrapped along the transfer end of A) and the transfer start of the long / short culm adjusting transfer device (9).

Although not shown in detail, the long / short culm adjusting / conveying device (9) which receives the grain culm from the post-conveying conveying device (10) and feeds it toward the threshing section has been known in the past. Similar to the existing one, it is composed of a tip conveying device (9A) and a stock holding device (9B), and it becomes possible to adjust the depth of supply of grain culms to the threshing section by manual or automatic means. ing. In addition, a holding rod is installed opposite to the carrying action portion of the stock carrier holding transfer chain mechanism (14A) (14B) of the post-conveying carrier device and the stock carrier holding carrier device (9B) of the long / short culm adjusting carrier device.
It is the same as the conventional one that the guide rods are provided opposite to the conveying action portions of the tip locking transfer mechanisms (15A) and (15B) of the post-conveyance conveying device and the tip conveying device (9A) of the long and short culm adjusting conveying device. is there.

[0016]

EFFECTS OF THE INVENTION The combine grain culm transporting device according to the present invention has a plurality of rows of grain culm groups scraped by a plurality of grain stalk scraping devices (8A) (8B) (8C) in the transport direction. A pair of left and right constricting transfer chain mechanism (14A)
(14B) and the tip end locking transfer mechanism (15A) (15B) arranged above each stock holding and transferring chain mechanism, and the post-conveying device (10) conveys to the central portion in the cutting width direction. In a combine configured to be merged and delivered to the long / short culm adjusting / conveying device (9), the left side stock source holding and transferring chain mechanism (14B) and the tip locking transfer mechanism (of the post-conveying device (10). 15B) and a power transmission mechanism (22) for driving the power transmission mechanism (22B) disposed in the upper and lower intermediate portions of both transfer mechanisms (14B) and (15B).
And a rotary shaft (21) located in the front part of the transmission mechanism (22) rotationally drives the left tip tip locking transfer mechanism (15B), and is arranged behind the rotary shaft (21). The other rotary shaft (20) located at the position
Since B) is driven to rotate, the following effects are obtained.

The end portion of the left stock holding and transfer chain mechanism (14B) is brought close to or wrapped to the transfer end portion of the right stock holding and transfer chain mechanism (14A) and the transfer start end of the long / short culm adjusting transfer device (9). Can be positioned as a post-conveyance device
The transfer from (10) to the long / short culm adjusting / conveying device can be performed while the grain culm is captured, and the edge portion of the transmission case (23) can be transferred from the post-conveying conveying device (10) to the long / short culm adjusting / conveying device. apparatus
It will also play a role of supporting the culm of the grain culm in the process of being delivered to (9), and the stable delivery of grain culm will be carried out without any disturbance or stagnation.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a harvesting and conveying section of a combine in which the device of the present invention is implemented.

FIG. 2 is a schematic left side view of a harvesting and conveying section of a combine in which the device of the present invention is implemented.

FIG. 3 is an explanatory view showing a conventional grain culm transporting device.

[Explanation of symbols]

 8A Grain-scraping device 8B Grain-scraping device 8C Grain-scraping device 9 Long-and-short culm adjusting and transporting device 10 Post-feeding and transporting device 14A Right side stock holding and transfer chain mechanism 14B Left side stock holding and transfer chain mechanism 15B Left side Tip locking transfer mechanism 20 rotary shaft 21 rotary shaft 22 transmission mechanism 23 transmission case

Claims (1)

[Claims] 1. A plurality of grain culm scraping devices (8A) (8B) (8C)
A pair of left and right stock holding and transfer chain mechanism that narrows a plurality of rows of grain culm that are scraped by
(14A) and (14B), and the tip transporting mechanism (15A) (15B), which is arranged above each of the stock-source holding and transporting chain mechanisms, in the rear feeding and conveying device (10) in the central portion in the cutting width direction. In a combine configured to merge and deliver to the long and short culm adjusting and conveying device (9), the left side stock source holding transfer chain mechanism (14B) and the tip end locking transfer of the post-conveying transfer device (10). The transmission mechanism (22) for driving the mechanism (15B) is housed in a transmission case (23) arranged at an intermediate portion in the vertical direction of both transfer mechanisms (14B) (15B), and the transmission mechanism (22) is arranged. ) The left side tip locking transfer mechanism with the rotary shaft (21) located in the front part of
(15B) is rotationally driven, and the left stock holding and transfer chain mechanism (14B) is rotationally driven by another rotational shaft (20) located behind the rotational shaft (21). Combine grain culm carrier device.