JPS6142339Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stock head raking device and a subsequent drive support method for the stock base conveying device in a combine harvester conveyance device.

The grain culm raking device of a conventional combine has its support point located on the reaping frame immediately after the reaping device below the raking wheel, and has a shape that projects upward from there. The lower part is the part where straw waste and hakama from the grain culm fall and accumulate on the reaping frame, or where the soil in the field is cut by the reaping device and thrown up and deposited. These accumulated and gradually increased, which obstructed the grain culm transportation path and caused culm disturbance and culm spillage.

In order to improve this point, the present invention has a structure in which the support of the raking device is suspended from above so that the lower part is open to allow the accumulation of straw and mud to escape.

The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the drawings showing the embodiments shown in the attached drawings.

FIG. 1 is an overall side view of the combine harvester of the present invention.

The aircraft body is placed on a crawler-type traveling device 13. A weed splitting plate 1 is protruded from the tip of the machine, and the grain culms in the erected state are separated and guided to a pulling device 2. The raising device 2 uses tines to raise and raise the lodging grain culms toward the ears. The stock head portion is guided to the stock head conveying device 23 by an elastic protrusion attached to the scraping belt 4, and further engaged by the scraping wheel 5 and scraped into the stock head conveying device. The stock head portion is then transferred from the stock head transfer device 7 to the vertical transfer device 8, and then transferred to the feed chain 9 of the threshing device 11 in the vertical transfer device 8. The tip portion is transferred from the raising device 2 to the tip conveyor 3,
The grains are placed on the entrance iron plate of the threshing device 11 from the grain conveyor 3. The waste culm that has been threshed is sent to the waste culm processing device 1.
It is processed in step 2 and dropped onto the field.

FIG. 2 is a side view of the vicinity of the reaping frame 30.

The main part of the present invention resides in the support device for the scraping wheel 5 shown in FIG. Conventionally, all of the raking wheels 5 have been provided on a support erected from the reaping frame 30. However, in the present invention,
It is provided on the inside of each scraping wheel,
The scraping wheels 5a and 5b on the driven side are suspended and supported from above by the scraping wheels 5c and 5d on the drive side.

Similarly, the drive pulley 4a of the scraping belt 4 provided above the scraping wheel is also supported from above.

As for the supporting method, first, a vertical support rod 15 is erected on the reaping frame 30, and the upper part of the vertical support rod 15 is fixed by a support rod 14 of a lifting device. Then, a front support rod 17 is provided protruding from the middle part of the vertical support rod 15,
A horizontal support rod 19 is provided in the left and right direction of the front support rod 17. A scraping device is suspended from both ends of the horizontal support rod 19. Further, the vertical support rod 15 fixedly supports the pinching devices 20 and 21 of the stock base conveying devices 22 and 23. A fixed plate 18 is also fixedly provided. 16 is a drive shaft cylinder of the lifting device 2.

FIG. 3 is a plan view showing the stock transport device section.

This shows an example of a four-row cutting combine harvester, in which the stock head conveying device 22 on the right side in the direction of travel is shown.
Then, the left stock head conveying device 23 merges at the driving sprockets 22b and 23b, and the grain stalks are conveyed from the merging point toward the drive sprocket 23b and tension sprocket 23d, which are the upper edges of the left stock head conveying device. Next, the vertical conveyance device 8 takes over.

Sprocket 22 of stock transfer device 22, 23
a, 23a are supported by a support set upright from the side of the reaping frame 30, and the raking wheels 5
c and 5d are fixed and driven.

22d is a tension sprocket, and 22c and 22d are conveyance chains. 24 is chain 22c, 2
3c, and a conveyance guide 25 is protruded further below the conveyance guide to improve the transfer performance from the stock conveyor to the vertical conveyor 8.
Due to this conveyance guide, the lower side of the culm that is pinched by the stock conveyor becomes free, so the layer becomes thicker, and it comes to rest on the chain case of the vertical conveyor.
This made it possible to improve the drawback of not being able to handle vertical transportation.

FIG. 4 is a drawing showing the drive device of the stock transfer device.

A drive case 2 is placed below the stock transport devices 22 and 23.
7 and 28 are provided, and the drive case 2
7, 28 are bevel gear boxes 2 at both ends of the drive case 26 installed horizontally in front of the confluence of the culms.
6a and 26b.

At the junction of the stock transfer devices 22 and 23 and at the joint between the stock transfer device and the vertical transfer device 8, straw waste tends to accumulate on the drive case 26 due to falling plants, falling straw, etc., and this gradually causes the culm to fall. This structure was designed to open up the lower part of the confluence, as this was an obstruction to the flow of water.

FIGS. 5 and 6 are drawings schematically showing the drive structure of the stock transfer device, with FIG. 5 being a plan view and FIG. 6 being a side view.

FIG. 7 is a drawing showing the inclination angle a of the stock transfer device 23 and the vertical transfer device 8, and when inheriting grain culms with such an inclination angle a, it is necessary to protrude below the transfer guide 24. The conveyance guide 25 is effective.

FIG. 9 is a diagram schematically showing the support device of the scraping device from the front.

As described above, in the present invention, a plurality of raking wheels 5a...5d are arranged in parallel from the upper part to the rear of the reaping device 6, and the plurality of raking wheels are made into a set of two and mesh to transmit power. At the same time, a merging conveyance path is formed at the meshing point, and the raking wheels configured in the meshing structure are suspended from a support rod erected from the rear of one of the reaping devices 6, and are transported to the lower side of the merging conveyance section. Since a space is formed and a raking belt driven coaxially with the raking wheel is provided above the raking wheel, a space is created immediately after the reaping device 6 constituted by the cutting blade. This allows mud to be smoothly discharged to the rear at locations where mud tends to accumulate.

In addition, in the merging conveyance path of the standing grain culm, which is formed by meshing two raking wheels, grain culm flakes and damp straw waste tend to accumulate in the lateral lower part of the part. By providing a conveyance space, these damp husks and straw waste can be smoothly discharged to the rear.

In addition, in the present invention, one of the two scraping wheels is used as the driving wheel and the other is used as the driven wheel to transmit power through meshing, so that the scraping wheel on the driven side can be moved from below. There is no need to support and drive it with a shaft, and the lower part can be configured as a transport space by being suspended.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of the combine harvester, Fig. 2 is a side view of the vicinity of the reaping frame, Fig. 3 is a diagram showing the stock transport device, Fig. 4 is a drawing showing the drive device of the stock transport device, Figure 5 is a plan view schematically showing the drive unit of the stock transfer device, Figure 6 is a side view of Figure 5,
FIG. 7 is a drawing showing the relative positions of the stock transfer device and the vertical transfer device, FIG. 8 is a drawing showing the transfer guide section, and FIG. 9 is a front view of the scraping device. 4... Scraping belt, 5... Scraping ring body,
6...Reaping device, 8...Vertical conveyance device, 15,1
7, 19... Support rod, 22, 23... Stock transport device.

Claims (1)

[Scope of utility model registration request] A plurality of raking wheels 5a...5d are arranged in parallel from the upper part to the rear of the reaping device 6, and the plurality of raking wheels 5a, 5d mesh with each other in pairs to transmit power and form a converging conveyance path at the meeting point. The raking wheel is suspended from a support rod erected from the rear of one of the reaping devices 6, and a conveying space is formed at the lower side of the merging conveyance section. A conveying device for a combine harvester, characterized in that a raking belt is provided above the body and driven coaxially with the raking wheel.