JPH11192011A - Combine grain stalk transfer and supply device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent scattering and leakage of grains in the direction toward the tip of a grain at a transfer section from a grain culm transfer device to a grain culm supply port of a threshing device, and to control a grain on a guide plate. Threshing work shall be performed smoothly by maintaining the flow of the culm well. A transfer culm is guided between a supply funnel (3) in front of a cereal supply port (2) of a threshing device (1) and an end of a cereal culm transfer device (4) for transferring a harvested cereal culm to the supply funnel (3). A guide plate 8 made of an elastic material is provided. The guide plate 8 is provided with the supply funnel 3.
The supply funnel 3 is formed into a bent state having a bottom 21 along the upper surface and a vertical wall 23 along the tip side vertical wall 6 of the supply funnel 3 from the bottom 21 via the bent portion 22. The front end of the bottom portion 21 of the guide plate 8 is integrally connected to the cereal culm guide cover 5 provided in the cereal culm transfer device 4, while the front end of the vertical wall portion 23 of the guide plate 8 is cereal culm guide. It is supported so that it can move back and forth with respect to the cover 5 side. Further, the guide plate 8 is connected to the supply funnel 3.
The upper part is divided into right and left, and the divided ends are overlapped with each other. The structure of the combine grain transfer and supply device configured as described above is adopted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain culm transfer / feeding device for combine harvesters, which transfers and feeds a harvested grain culm to a threshing device, and smoothly transfers the harvested grain culm to a grain culm supply funnel of the threshing device. Is to be performed.

[0002]

2. Description of the Related Art In a cereal culm transfer device for transferring culm harvested by a reaper to a threshing device, the cereal culm transfer terminal portion is controlled by raising and lowering of the reaper or by moving the cereal culm transfer device itself up and down. And the relative position of the husk supply funnel of the threshing device changes. For this reason, for example, Japanese Utility Model Publication No. Sho 60-3709 and Japanese Utility Model Application No. 56-64260 (Japanese Utility Model Application Laid-Open No. 57-1774).
As disclosed in the microfilm of No. 28), the gap between the end portion of the grain culm transfer device and the grain culm supply funnel of the threshing device is closed to reduce the scattering and leakage of the grain and to inherit the grain culm supply. In order to maintain good condition, a plate-shaped rubber droop is provided.

[0003]

However, there is still leakage of grains even in the above-mentioned prior art. In particular, on the tip side of the grain stem, the grains are easily scattered in the direction of the tip side. Therefore, it is preferable to provide a vertical wall portion such as a rubber plate along the inside of the tip side vertical wall surface also at the tip portion. However, in the above-mentioned prior art, the front end of the vertical wall portion is integrally connected to the mounting plate of the cereal culm transfer device. Not only did this cause leakage of the grains, but it was difficult to smoothly guide the culm ears.

Further, for example, when the raising and lowering of the mowing device and the vertical movement of the grain culm transfer device are performed, the above-mentioned rubber plate attached to the end portion side of the grain culm transfer device is also moved. At this time, the tip side portion of the rubber plate is restricted from moving in the left-right direction by the tip side vertical wall surface of the grain culm supply funnel, and the bottom surface of the rubber plate is restricted from moving downward by the top surface of the supply funnel. .

[0005] Therefore, the rubber plate whose movement direction is regulated in this way is positively moved by the raising and lowering adjustment of the mowing device and the vertical movement of the grain culm transfer device, whereby the rubber plate itself is compressed in the lateral direction. When the rubber plate is formed of a single piece when the action or the tensile action is applied, the rubber plate is bent up and down or bent in an uneven shape. As a result, it hindered the flow of cereal stems on this rubber plate,
There was a drawback that threshing work could not be performed smoothly.

[0006]

The present invention employs the following technical means in order to solve the above-mentioned problems. That is, the elasticity for inheriting and guiding the transferred cereal culm between the supply funnel 3 in front of the cereal culm supply port 2 of the threshing device 1 and the end portion of the cereal culm transfer device 4 for transferring the cut corn culm to the supply funnel 3. In order to provide the guide plate 8 made of a material, the guide plate 8 includes a bottom 21 along the upper surface of the supply funnel 3 and a bent portion 2 extending from the bottom 21.
2 is formed in a bent state having a vertical wall portion 23 along the tip side vertical wall surface 6 of the supply funnel 3 through the feed funnel 3, and a front end of the bottom portion 21 of the guide plate 8 is provided in the cereal culm transfer device 4. The guide plate 8 is integrally connected to the guide cover 5 side.
The front end portion of the vertical wall portion 23 is covered with the grain stalk guide cover.
5 so as to be movable back and forth with respect to the
Are divided into right and left parts on the supply funnel 3 and their divided ends are superposed on each other to constitute a grain culm transfer / supply device of a combine.

According to this configuration, in the combine operation, the cereal stalks cut by the reaping device are transferred by the cereal stalk transfer device 4, and are transferred from the transfer end to the supply funnel 3 via the guide plate 8. Then, it is supplied to the threshing apparatus 1 from the grain culm supply port 2 to be threshed. Thus, the guide plate 8 is bent such that its bottom 21 is along the upper surface of the lower supply funnel 3 and its vertical wall 23 is along the tip side vertical wall 6 of the supply funnel 3 from the bottom 21 via the bent portion 22. Is formed. The front end of the bottom portion 21 of the guide plate 8 is integrally connected to the cereal culm guide cover 5 provided in the cereal culm transfer device 4, but the front end of the vertical wall portion 23 of the guide plate 8 is formed of the cereal. The culm guide cover 5 is supported so that it can move back and forth.

For this reason, even if the end position of the transfer with respect to the supply funnel 3 is changed by turning the grain culm transfer device 4 in the vertical direction or the like, particularly, the bent portion 22 of the guide plate 8 is moved to the vertical wall portion. The portion extending over 23 is hardly affected by this, and the tip side of the guide plate 8 can maintain the bent state, and the occurrence of wrinkles is reduced. Thereby, it is possible to enhance the effect of preventing the grain from scattering toward the tip side and preventing leakage.
In addition, the guiding action of the front part of the grain stalk can be performed smoothly.

Further, even if the guide plate 8 is moved by the raising / lowering control of the mowing device or the vertical movement of the grain culm transfer device 4, the guide plate 8 is divided into right and left, and the divided ends thereof are overlapped with each other. Even if a compressive action or a tensile action in the left-right direction acts on the guide plate 8,
The left and right divided guide plates 8 and 8 can slide relatively to each other in a state of being overlapped with each other, so that the guide plate 8 is less likely to bend in the vertical direction or bend in an uneven manner.

Thus, the flow of the grain stalk on the guide plate 8 can be maintained in a good state.

[0011]

As described above, the present invention provides a threshing apparatus 1
A guide plate made of an elastic material for inheriting and guiding the transferred grain culm between the supply funnel 3 in front of the grain culm supply port 2 and the end portion of the grain culm transfer device 4 for transferring the harvested grain culm to the supply funnel 3. The guide plate 8 is provided with a bottom 21 along the upper surface of the supply funnel 3.
And a vertical wall portion 23 extending along the tip side vertical wall surface 6 of the supply funnel 3 from the bottom portion 21 through the bending portion 22. The front end of the bottom portion 21 of the guide plate 8 is formed by the grain. The front end of the vertical wall portion 23 of the guide plate 8 can be moved back and forth with respect to the grain culm guide cover 5 while being integrally connected to the grain culm guide cover 5 provided on the culm transfer device 4. And the guide plate 8 is divided right and left on the supply funnel 3 and the divided ends thereof are superimposed on each other. Therefore, the effect of preventing the grain from scattering and leaking in the direction toward the tip of the spike can be enhanced, and the flow of the grain culm on the guide plate 8 can be maintained in a good state, so that the threshing operation can be performed smoothly.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated example, the supply funnel 3 is shown.
Is located in front of a handling chamber 10 in which the handling cylinder 9 of the threshing device 1 is provided, and surrounds the lower edge of the grain culm supply port 2 of the handling cylinder chamber 10. The stem side is approached to a grain culm transfer device 11 for pinching and transferring, and the tip side is bent upward to an appropriate height to provide a vertical wall surface 6.

The grain stem transfer device 4 includes a stock transfer device 17 comprising a chain 12 for holding and transferring the stock side and a holding rod 13,
And a spike transfer device 16 for arranging the lugs 14 on the chain 15 at regular intervals.
A grain stalk guide cover 5 for guiding the transferred grain stalks is provided between the sections 6 and along the upper side of the spike transfer device 16. 18 is
A supporting frame for extending the chains 12, 15 and the like;
And a connection frame connecting between the guide rod 19 along the tip of the lug 14.

The guide plate 8 is formed in a plate shape such as a rubber material or a cloth material, is separated into a base portion side and a tip portion side, and the two are appropriately overlapped. The guide plate 8 on the stock base side is provided with a cereal stem guide cover 5 between the stock base transfer device 17 and the spike transfer device 16.
The guide plate 8 has a terminal edge which is connected to the supply funnel 3.
In contact with the upper surface of the The tip guide plate 8 is attached to the end of the cereal stalk guide cover 5 which covers the top of the spike transfer device 16, and the attachment portion 20 is provided only at the front edge of the bottom 21. From the side part, through the bent part 22, the vertical wall part 2
The front end of the guide plate 8 is extended so that the front end is larger than the lower end of the cereal stalk guide cover 5 toward the front side.
To be able to slide back and forth. The end edge of the tip side guide plate 8 is also in sliding contact with the upper surface or the vertical wall surface 6 of the supply funnel 3 as described above.

With respect to the support frame 25 on the chassis 24,
A reaper frame 29 is provided so as to be able to move up and down freely by vertical links 26 and 27 and a hydraulic cylinder 28 for moving the vertical up and down.
The reaper frame 29 includes a weeding frame 30 and a cereal stem raising device 3.
1, a cutting blade device 32, a cereal stem collecting and feeding device 33, and the like are provided, and are configured to be transmitted from a transmission mechanism in the reaper frame 29. The grain culm transfer device 4 pivotally supports the transfer end portion so as to move up and down to the front end around the axis 34 of the pivot portion with the link 26 at the upper end of the reaper frame 29, and rotates vertically with respect to the link 26. The support rail 35 of the culm transfer device 4 is supported by the support rail 35, and the support frame 2 is mounted on the support frame 25 via a rod 38 by a servo motor 37 attached to the support frame 25.
5 is rotated up and down so that the inherited position of the cereal stem inherited from the collection and delivery device 33 is changed and adjusted to the base side or the tip side. This change adjustment is performed by providing a cereal culm supply depth sensor 39 for detecting the ear tip position of the cereal culm in the middle of the cereal culm transfer device 4, and detecting the cereal culm by the supply depth sensor 39. A control interlocking configuration may be used to rotate 37 to make the supply depth of the grain culm to the threshing apparatus 1 constant.

Reference numeral 40 denotes a traveling device, and 41 denotes a control device.
The cereal stalks cut by the cutting blade device 32 are collected by the collection device 33 and passed to the cereal stalk transfer device 4. The stock side is clamped by a stock transfer device 17, the spike side is engaged and guided by a spike transfer device 16, and a guide body is provided at the end portion from the grain stalk guide cover 5 to a lower rear portion. Guided to 8,
Inherited on feed funnel 3. Stock unit is stock unit transfer device 17
From the end of the cereal culm transfer device 11, the spike is supplied from the supply funnel 3 to the handling drum 10 through the cereal culm supply port 2, and threshed.

To adjust the cutting height, the hydraulic cylinder 28 is expanded and contracted, and the reaper frame 29 is moved up and down by a four-point link mechanism via the links 26 and 27. When the feeding depth is too shallow or too deep, the grain culm transfer device 4 detects the spike tip position of the grain culm based on the setting position of the feeding depth detecting sensor 39, and operates the servomotor 37 in conjunction with the feeding. -Rule 35
Is rotated to adjust the grain culm transfer device 4 up and down to control the supply depth to an appropriate position.

As described above, when the culm transfer device 4 is moved up and down or moved up and down by the shaft 34 or the links 26 and 27, the relationship between the guide plate 8 and the supply funnel 3 changes. The end edge is always in contact with the upper surface of the supply funnel 3 to smoothly perform the spike portion side of the grain stalk and reduce the gap between the bottom portion and the spike side vertical wall portion, so that the grain leaks forward and Prevents scattering on the tip side.

The guide plate 8 on the tip side forms a bent portion 22 so that the bottom portion 21 and the vertical wall portion 23 are brought into sliding contact with the corresponding supply funnel 3 surface. The front end of the bridging portion is a support member 7 integral with the grain stalk guide cover 5.
Because the back is slidably guided back and forth,
With the movement of the culm transfer device 4 such as lifting and lowering, the guide plate 8
The up-and-down movement of the end edge of the tip side of the tip is smooth, and the sliding contact with the supply funnel 3 is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view of a part of a combine.

FIG. 2 is a side view showing a part of the combine.

FIG. 3 is a plan view of a part of the combine.

FIG. 4 is a rear sectional view of a part of the combine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 threshing device 2 cereal culm supply port 3 supply funnel 4 cereal culm transfer device 5 cereal culm guide cover 6 ear-side vertical wall surface 8 guide plate 21 bottom portion 22 bent portion 23 vertical wall portion

Claims (1)

[Claims] The transfer grain culm is inherited between a supply funnel 3 in front of a grain culm supply port 2 of a threshing device 1 and an end portion of a grain culm transfer device 4 for transferring a harvested grain culm to the supply funnel 3. In order to provide a guide plate 8 made of an elastic material for guiding, the guide plate 8 includes a bottom 21 along the upper surface of the supply funnel 3 and a bent portion 2 extending from the bottom 21.
2 is formed in a bent state having a vertical wall portion 23 along the tip side vertical wall surface 6 of the supply funnel 3 through the feed funnel 3, and the front end of the bottom portion 21 of the guide plate 8 is provided in the cereal culm transfer device 4. The guide plate 8 is integrally connected to the guide cover 5 side.
The front end portion of the vertical wall portion 23 is covered with the grain stalk guide cover.
5 so as to be movable back and forth with respect to the
Is divided into right and left parts on the supply funnel 3 and their divided ends are superimposed on each other.