JPS5930366B2 - Stem culm holding and conveying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stem culm holding and conveying device that is configured to pinch and convey a stem culm through the cooperative action of a rotating endless body for conveying a stem culm and a gripping rail.

When this kind of stem culm clamping and conveying device is installed in a combine harvester, for example, it is usually configured to be able to change its posture, and the stem culm delivery position relative to the clamping and conveying device installed on the downstream side of the conveyor can be changed in the culm length direction. In many cases, the handling depth can be adjusted by changing the position of holding the stem culm in the direction of the culm length, which is transferred from the holding and conveying device disposed on the upper side of the conveyor.

Therefore, in this type of stalk culm clamping and conveying device, the support frame of the endless body and the gripping rail are connected by a curved frame that projects in the length direction of the stalk culm, and the conveyed stalk culm is passed through the inside of the frame. However, in this curved frame, the support frame and the clamping rail are installed in such a manner that they protrude from the position in the length direction of the stem culm, that is, in the almost vertical direction. There is a problem in that the amount of protrusion tends to become large, and as mentioned above, it tends to interfere with other devices when changing the posture.

In addition, if the amount of protrusion of the curved frame is reduced in order to avoid interference with other devices, the stem culms and the curved frame will come into contact with each other, and the stem culms that are being conveyed one after another will smoothly pass through the curved frame. It becomes difficult.

The present invention has been made with the above circumstances in mind, and
To provide a stem culm clamping and conveying device which can smoothly pass a stem culm while reducing the amount of protrusion of a curved frame, and can be constructed robustly without causing the stem culm to get caught.

Embodiments of the present invention will be described in detail below with reference to the drawings.

The figure shows a combine harvester in which a reaping pre-processing section 3 is connected to the front part of a traveling body in which a threshing device 2 is mounted on a crawler traveling device 1.

The reaping pre-processing section 1 includes a lifting device 4 obliquely installed at the front part.
After pulling up multiple rows of planted stem culms and reaping them with the reaping device 5, they are conveyed laterally and merged, and the merged stem culms are transferred to the ear tip retaining conveyance device. 6 and the first and second stock clamping and conveying devices 7 and 8 arranged along the lower part of the conveying device 6, the grains are conveyed rearward to the feed chain 9 of the rear threshing device 2. It is configured to be delivered.

The first plant head clamping and conveying device 7 is configured to clamp and convey the stem culm by cooperation of a rotary chain 7a with protrusions and a clamping rail 7b, and its starting end is pivoted around the horizontal axis X. connected.

Then, by changing the posture around the horizontal axis X, the stem culm delivery position from the conveying end to the next starting end of the second plant clamping and conveying device 8 is changed in the culm length direction, and the so-called handling depth is changed. Configured to make adjustments.

Further, as shown in FIG. 2, the first stock clamping and conveying device 7 has a U-shaped structure in which the clamping rail 7b and the support frame 10 of the chain 7a are arranged between the lower surfaces of the two. They are connected by a curved frame 11, and are configured to be conveyed through the space surrounded by the frame 11 by passing the base of the stem culm. An extrusion rod 12 is attached to the curved frame 11 as an extrusion part that presses and deforms the side portion so that it is biased to one side with respect to the culm length direction at the clamping point when viewed in the culm transport direction.

Specifically, the curved frame 11 has a portion 11a that crosses the movement path on the side of the stem culm root conveyed by the first plant head clamping and conveying device 7, which is located at a point where the portion 11a that crosses the movement path on the side of the stem culm root side transported by the first plant head clamping and conveying device 7 is located at a position where the portion 11a crosses the movement path on the side of the stem culm root side that is conveyed by the first root clamping and conveying device 7. The stem culm is also placed in a lying position on the lower side in the transportation direction, and is located on the upper side of the transportation than the crossing portion 11a and is opposite to the direction in which the plant base moves due to the extrusion action. The frame portion 11b is configured to have a frame portion 11b along the stem culm transport direction, and the frame portion 11b is set at a position below and close to the base end of the stem culm whose posture has been changed. There is.

Further, as shown in FIGS. 2 and 3, the extrusion rod 12 has its front end attached to the front end of the curved frame 11 on the support frame 10 side, and sequentially moves along the stem culm movement path toward the rear. It approaches the gripping rail Ib side while crossing, and its terminal end reaches a portion 11a that crosses the movement path on the side of the stem culm base of this curved frame 11, and is integrally attached to the chain portion.

Then, as shown in FIG. 3, the stem culm stock part that protrudes into the space surrounded by the curved frame 11 while being conveyed by the first stock head holding and conveying device 7 is put into a posture by the pressure deformation action. It is configured to be changed so as to pass over the frame portion 11b and move to the outside of the curved frame 11.

In carrying out the present invention, as the extrusion part 12, the fourth
It is also possible to attach a plate to the curved frame 11 as shown in the figure.

In addition, in the embodiment, a curved frame 1 is provided on the base side of the stem culm.
1 is shown as an example, the present invention can be implemented in the same manner even if the curved frame 11 is present on the side of the stem and culm tip.

In summary, the stem culm clamping and conveying device according to the present invention is configured to clamp and convey the stem culm through the cooperative action of the rotary endless body 7a for conveying the stem culm and the clamping rail 7b, and
In the stem culm clamping and conveying device in which the support frame 10 of a and the clamping rail 7b are connected by a U-shaped curved frame 11 to which the front ends are attached, respectively, the U-shaped curved frame is connected. 11 is provided in a horizontal position with a portion 11a that crosses the stem culm movement path located on the lower side in the stem culm movement direction than the front end of the frame 11, and
Spanning between the front end of the curved frame 11 on the side of the support frame 10 and the portion 11a that crosses the stalk culm movement path, as it goes rearward, it sequentially crosses the stalk culm movement path and approaches the gripping rail Ib side, and the terminal end is the crossing portion 11a. It is characterized in that the extrusion tool 12 leading to is integrally provided.

In other words, the curved frame is not attached in the longitudinal direction of the stem culm, that is, in the vertical direction, but rather in a direction perpendicular to the longitudinal direction of the stem culm, that is, in the stem culm holding and conveying device. Since the curved frame 11 is provided in a horizontally lying position along the curve, the amount of vertical protrusion of the curved frame 11 can be made very small, and there is little interference with other devices. When the stem culm enters the space surrounded by this frame 11, it is pushed toward the gripping rail Ib side by the extrusion tool 12, deforming and changing its posture, and finally reaching the gripping rail Ib of this frame 11.
The stem culm part on the side of the curved frame 11 is guided to the outside of the frame 11 by climbing over the side frame portion 11b, and the posture change is relatively gradual and the stem culm portion on the curved frame 11 side is guided from beginning to end. Even if the object is moved, there is little risk that the posture will be disturbed, and the desired conveyance can be carried out smoothly.

Moreover, since the extrusion tool 12 is integrally attached to the curved frame 11, the stem culm that has been guided to near the end by the extrusion tool 12 gets caught on the extrusion tool 12, the curved frame 11, etc. In addition to being able to smoothly guide the frame 11 to the outside without the disadvantage of hindering movement, the curved frame 11 has the advantage that it can be constructed durable because the extrusion tool 12 acts as a spade. .

[Brief explanation of the drawing]

The drawings illustrate embodiments of the stalk culm clamping and conveying device according to the present invention, with FIG. 1 being a side view showing the front part of the combine harvester, FIG. 2 being a perspective view showing the terminal end of the stalk culm clamping and conveying device, and FIG. 3 is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 4 is a perspective view of another embodiment. 7a... Rotating endless body for transporting stem culm, 7b...
...Pinch rail, 10...Support frame, 11
. . . Curved frame, 11a . . . Crossing portion, 12 . . . Extrusion tool.

Claims (1)

[Claims] 1 The stem culm is configured to be held and conveyed by the cooperative action of the rotating endless body 7a for conveying the stem culm and the gripping rail 7b, and the support frame 10 of the endless body 7a and the gripping rail 7b
In the stem culm clamping and conveying device, in which the front ends are attached to these and connected by a U-shaped curved frame 11, the U-shaped curved frame 11 is a portion that crosses the stem culm movement path. 11a is provided in a lying position in a position lower than the front end of the frame 11 in the direction of stalk culm movement, and the front end of the curved frame 11 on the support frame 10 side and the portion 11a that crosses the stalk culm movement path. A stalk culm clamping and conveying device characterized in that a pushing tool 12 is integrally provided, which approaches the gripping rail Ib side while sequentially crossing the stalk culm movement path as it reaches the rear, and whose terminal end reaches the crossing portion 11a. .