JPH0446518Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention has a first pulling device for pulling up one row of grain culms and a grain culm introduction path that faces each other in order to raise two rows of grain culms. The present invention relates to a reaping pre-treatment device for a combine harvester in which a second and third pulling device are installed in parallel.

[Conventional technology]

In this type of combine harvester pre-harvest processing device,
Conventionally, as shown in FIG. 9, the start end of the ear tip holding and conveying device 5B is positioned behind the stalk introduction paths R2, R3 of the second and third lifting devices 1B, 1C, and the first lifting device 1A is arranged in parallel on the conveying path Q side of the ear tip holding and conveying device 5B and at a position farther from the conveying path Q than the second and third lifting devices 1B, 1C. Furthermore, as shown by the imaginary line, the first lifting device 1A is arranged in parallel with the stalk introduction path R1.
A guide rod 22 is provided at the rear to guide the stalks raised by the first raising device 1A to the starting end of the ear retaining and conveying device 5B after harvesting.

[Problem that the invention attempts to solve]

However, in this case, one row of grain culms pulled up by the first pulling device is guided to the guide rod and merged into the ear tip conveying position relying on the backward conveyance force of the pulling device. Since the grain culm is only picked up, the merging conveying force is weak compared to the two rows of grain culm that are forcibly scraped by the ear tip conveying device, so the grain culm pulled up by the first lifting device has no protrusions. Compared to the head side that is transported by a belt conveyor, the tip of the head is more likely to be delayed, and it is difficult to smoothly join the vertical conveyor, which grips the head side and locks and transports the head side. Moreover, even if they are merged into the vertical conveyance device, they are merged with a delay in the tip of the ears, so there is a risk that they may bend and break while being fed by the vertical conveyance device, or fall off from the tip conveyance device. It was easy to cause transportation problems.

An object of the present invention is to provide a system that can solve transportation problems by adding a simple mechanism and changing the arrangement of the existing mechanism to accommodate the added mechanism.

[Means for solving problems]

The characteristic configuration of the present invention includes a stock head locking and conveying device that gathers the three grain culms pulled up by three pulling devices toward the center of the cutting width, and a stock head side raking rotary body. It is equipped with a vertical conveyance device that conveys the collected harvested grain culms toward the rear threshing device, and this vertical conveyance device is composed of an ear locking conveyance device and a stock-side clamping conveyance device, and the grain culms for one row are The starting end of the ear locking and conveying device is positioned behind the grain culm introducing path of the first pulling device that pulls up the grain culm, and the second and third grain culms are introduced in order to pull up two rows of grain culms. A second pulling device and a third pulling device with opposing paths are arranged side by side on the conveying path side of the ear locking conveying device and at a position farther from the first lifting device with respect to the conveying path. Further, a drive type ear tip scraping conveyance device is provided at a position behind the second and third grain culm introducing paths and opposite to the starting end of the ear tip locking conveyance device. , its effects are as follows.

[Effect]

In other words, the stalks of each row raised and cut by the three raising devices have their base sides gathered to the center of the cutting width by the base engaging and transporting device and the base side raking rotor, and are then handed over to the base clamping and transporting device.
The tips of the harvested culms can be smoothly conveyed by the conveying force of the tip-holding conveying device installed close to the first harvest row, and the driven tip-stack conveying device for the second harvest row, which has a large amount of culms. Moreover, the harvested culms of each row can be conveyed to the vertical conveying device at one point on both the base side and the tip side, allowing for smooth conveying without any disturbance in posture.

[Effect of idea]

As a result, three rows of grain culm are divided into two rows and one row, each of which is pulled up and harvested using a separate lifting device, and then merged into the starting end of the vertical conveyance device. However, the harvested grain culm can be smoothly merged and transported without disturbing its posture.

〔Example〕

As shown in FIG. 10, the pre-treatment device B of the combine includes a weeding tool 13 attached to a support rod 14, and a three-row puller arranged in a passage formed by the weeding tool support rod 14. device 1A, 1B, 1C,
These lifting devices 1A, 1B, 1C pull the three rows of grain culms to the center of the cutting width, and the protruding belt type stock side locking and conveying devices 3A, 3B and rotating bodies 4A, 4B; The front locking conveyance device 3A,
The fuselage A is equipped with a vertical conveyance device 5 consisting of a reaping device 2 that reaps the grain culms collected at 3B, a head locking conveyance device 5B that conveys the harvested grain culms to the rear threshing device 10, and a stock clamping conveyance device 5A. It is integrally attached to a front-back main frame 9 extending from the main frame 9, and is configured to be vertically swingable around the base end transverse axis P of the main frame 9.

The raising devices 1A, 1B, and 1C will be explained. The first pulling device 1A on the control section 12 side pulls up one thread, and the second pulling device 1B and third pulling device 1 located on the side farther from the control section 12
C and are arranged with their respective pulling paths facing each other to pull up two rows of grain culms. The lifting device 1C winds and tensions the chain 18 between the upper drive wheel body 15 and the lower idler wheel body 16 via the tension wheel body 17, and
8, a plurality of lifting claws 19 that can be raised and lowered are attached at equal intervals, and the lifting claws 19 are maintained in an upright position by guide members 20 provided corresponding to the lifting path. Raise the planted grain culm with the claw 19. As shown in the figure, the distance between the tip trajectory a of the lifting claw 19 of the first lifting device 1A and the end face of the case 1b of the second lifting device 1B is set as narrow as the distance corresponding to the upper part of the lifting case 1b (α). and raising case 1b
Since the width (β) is set to be relatively wide (β) corresponding to the lower part, in the case of short culms, the spacing is wide (β) and the culms are released early to avoid applying more pulling action than necessary, and in the case of long culms, The space (α) is narrowed to suppress spillage from the space and apply a sufficient lifting action.

Next, the tip scraping rotary body 6 as a tip scraping device will be explained. U-shaped frame 2 extending around the upper part of the conveyance path Q of the vertical conveyance device 5
1, a proximal frame 23 that supports a clamping frame 22 provided corresponding to the stock clamping and conveying device 5A is fixed to the tip of the proximal frame 23.
A tip scraping rotary body 6 with a drive motor 7 is attached to the tip of the support holder 24 extending from the support holder 24. This scraping rotary body 6 is arranged to face the starting end on the conveying path Q side of the ear tip locking conveying device 5A,
In order to scrape up two rows of lifted grain culms from both the lifting devices 1B and 1C and merge them into the vertical conveyance device 5,
Together with the vertical conveyance device 5, it is capable of vertically swinging around the base end horizontal axis P serving as a fulcrum located at the rear in the conveyance direction. The tip scraping rotary body 6 is an output shaft 7 of a worm reduction mechanism (not shown) drive motor 7.
A rotary disk 25 is attached to a, and a claw 6a is pivotally supported on the circumferential end of the disk 25.
is switched to the working position of standing up by the guide plate 26, and the two rows are raised to scrape the grain culm,
is slidable relative to the support holder 24;
The position can be changed to the transport path Q of the vertical transport device 5.

A pair of left and right front locking conveyance devices 3A, 3B grain culm introduction path R ₁ from each of the lifting devices 1A, 1B, 1C,
In R ₂ and R ₃ , left and right guide rods 27A, 27B located on the inside of the cutting width and guide plates 28A, 28B located on the outside of the cutting width are connected to the front locking and conveying devices 3A, 3.
B, and the guide rods 27A, 27B and the guide plates 28A, 28, respectively.
The front half portions 28a, 27b, 28a, 28b from the lifting devices 1A, 1B, 1C to the starting ends 3a, 3b of the front locking conveyance devices in B and the conveyance path of the front locking conveyance devices 3A, 3B. The rear parts 27c, 27d, 28c, 28 located corresponding to S ₁ and S ₂
d is bent into a substantially dogleg shape in plan view. The grain culms introduced by the lifting device also pass through the guide plates 28A, 28B and the guide rods 27A, 2 in the transport paths S ₁ and S ₂ of the front-locking upper transport devices 3A and 3B.
7B, the short culm pulling device 1A, 1B, 1C is particularly prevented from spilling forward toward the back side.

As shown in FIGS. 4 to 7, the stock side scraping rotary body 29 located between the left and right pair of rods 27A, 27B and on the back side of the central lifting device 1B engages the front locking member. The front locking conveyance devices 3A, 3B are provided above the conveyance devices 3A, 3B.
The raking rotary body 2 on the stock side
A guide body 30 extending from the back side of the central lifting device 1B is provided above the puller 9. This guide body 30 is directed toward the confluence c of the front locking conveyance devices 3A and 3B, and the grain culm introduction port b formed by the starting end of the stock conveyance device 5A and the ear tip raking rotary body 6. In addition to projecting in a V-shape, the diameter D of the V-shaped protrusion is set larger corresponding to the confluence point (discharge port) c, and the diameter d is set smaller corresponding to the grain culm introduction port b, respectively. It is configured to function effectively as a guide.

[Another example]

○B The tip scraping rotary body 6 is a scraping claw 6.
It may be one that fixes the posture of a to the working posture,
It is not limited to the above embodiments.

(B) The ear tip scraping device 6 may be of an endless rotating band type with scraping claws 6a attached along the conveyance direction and driven by a motor 7.

[Brief explanation of the drawing]

The drawings show an embodiment of the pre-reaping treatment device for a combine harvester according to the present invention, FIG. 1 is a plan view showing the arrangement relationship between the raising device and the ear raking and conveying device, and FIG. FIG. 3 is a plan view showing the tip scraping conveyance device; FIG. 4 is a partially cutaway side view showing the positional relationship between the stock side scraping rotary body and the guide body; Fig. 5 is a sectional view taken along the - line in Fig. 4, Fig. 6 is a sectional view taken along the - line in Fig. 4, Fig. 7 is an overall plan view, Fig. 8 is a front view of the pulling device, and Fig. 9 is a tip of the tip. FIG. 10 is a plan view showing the conventional arrangement relationship between the scraping and conveying device and the pulling device, and FIG. 10 is an overall side view. 1A...First pulling device, 1B...Second pulling device, 1C...Third pulling device, _R1 ...First grain culm introduction route, _R2 ...Second grain culm introduction route, R ₃ ...
3rd grain culm introduction route, Q... Conveyance route, 5... Vertical conveyance device, 5A... Stock head clamping conveyance device, 5B... Ear tip locking conveyance device, 6... Ear tip raking conveyance device, 1
0... Threshing device, 29... Stock side rake rotor.

Claims (1)

[Scope of utility model registration request] It is equipped with stock head locking and conveying devices 3A, 3B that gather three rows of grain culms pulled up by three pulling devices 1A, 1B, and 1C to the center of the cutting width, and a stock side raking rotary body 29. , is equipped with a vertical conveyance device 5 that conveys the harvested grain culms gathered together toward the rear threshing device 10, and this vertical conveyance device 5 is composed of an ear locking conveyance device 5B and a stock side clamping conveyance device 5A. Then, at the rear of the grain culm introducing path R1 of the first pulling device 1A that pulls up one row of grain culms, there is an ear tip locking and conveying device 5B.
A second and third pulling device 1B and a third pulling device 1C are arranged such that the starting end of the grain culm is positioned and the second and third grain culm introduction paths R2 and R3 are opposed to each other in order to pull up two rows of grain culms. A first lifting device 1A is provided on the conveyance path Q side of the ear tip locking conveyance device 5B and with respect to this conveyance path Q.
The second and third
A pre-reaping treatment device for a combine harvester, which is provided with a drive type ear tip scraping and conveying device 6 at a position behind the grain culm introduction paths R2 and R3 and facing the starting end of the ear tip locking and conveying device 5B.