JPS5923464Y2 - Bundled straw discharge device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bundled waste straw discharging device for a combine harvester equipped with a waste straw binding machine, which allows the bundled waste straw discharged into the field to be placed in an upright position to facilitate drying of the bundled waste straw. be.

The purpose of the present invention is to simplify the support structure of the clamping rod in this type of bundled waste discharge device, which is used to make the bundled waste straw hang down due to its own weight. It is.

In the present invention, the clamping rod in the above-mentioned conveyance device is divided into a plurality of pieces and connected to each other, and is fixed to a guide body support of a U-shaped pipe that detours from the conveyance case to the tip side, and the guide body support. The clamping rod is supported via a support plate with a spring pressure, and the clamping rod is movable relative to the support plate by spring pressure, and the pressing force of the clamping rod can be changed by the action of the spring depending on the size of the bundle of bundled waste straw being conveyed. Furthermore, in the event of a transportation failure, the distance between the transportation case and the support plate is increased by deforming the guide support, which is a U-shaped pipe.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

A straw binding machine 2 is connected to the rear of the combine harvester 1, and the waste straw from the threshing device is fed onto the straw deck 3 in an almost horizontal state by a straw conveying chino (not shown) of the combine harvester 1. It is tied horizontally.

A knot 4 such as a bill holder and a discharge arm 5 are located above the straw deck 3, and a packer 6, a needle 7, etc. are located below the straw deck 3.

8 is a transmission case of the bundling machine, 9 is a door, and 10 is a stock shutter that supports the waste straw during bundling.

Reference numeral 11 denotes a waste straw separating device for distinguishing untied waste straw from bundled waste straw, and the device 11 is a waste straw separating device for distinguishing untied waste straw from bundled waste straw, and is separated by a protruding piece 13 projected from a chino 12 that rotates in conjunction with the operation of the knotting part 4. This prevents the stock part of the waste straw that will be tied up next time from falling.

Next, the bundled waste straw conveying device 14 will be explained.

The driving sprocket and the driven sprocket are rotatably attached to both ends of the transport case 15 by winding the transport chain 16 around both sprockets, fixing the second transmission case 17 to the back of the transport case 15, and attaching the drive sprocket and the driven sprocket to the transmission case 8 side of the binding machine 2. The first transmission case 18 and the second transmission case 17 are connected via a transmission cylinder 19 containing a transmission shaft and a bevel gear, and the tip of the transport case 15 and the first
A support pipe 20 is fixed to the base end of the transmission case 18, and power is obtained from the input shaft to the binding machine 2 to connect the first transmission case 1.
8. The drive sprocket in the transport case 15 is driven via the transmission cylinder 19 and the second transmission case 17, and the transport case 15 is fixedly supported at a predetermined angle and position by the support pipe 20 and the transmission cylinder 19.

That is, the transport case 15 has a front end 15a when viewed from above.
is close to the rear end of the straw deck 3 near the extension line of the binding path of the binding machine 2, and the rear end 15b is located at the rear of the machine on the side of the machine on the already cut land side, and is located in the vertical direction. Rear end 15
In order to be located above the front end portion 15a, the portion b is inclined rearward upward and toward the rear mown ground side.

Further, in the embodiment, the rear end portion 15 of the transport case 15
b is located above the front end 15a, and in plan view (see Fig. 1), the front end 15a is located near the extension line of the binding passage of the binding machine 2, and the rear end 15b is located on the side of the machine (already The transport case 15 is located on the mowed land side), and the conveyance case 15 is disposed obliquely toward the rear side of the mowed land.

Furthermore, the transport case 15 is located at its upper end (transport chain action side).
It is inclined upward and inward with respect to the vertical plane so that it faces inward.

One end of a U-shaped guide support (pipe) 21° 21 is fixed to the transport case 15, a support plate 22 is fixed to the other end, and the support plate 22 is opposed to the transport chino 16 at the upper end of the transport case 15. A rod 25 having a pin 24 at its tip which connects the divided clamping rods 23 with each other is attached to the support plate 22 so as to be movable in the axial direction.A compression spring 26 is inserted into the rod 25, In the same way as the clamping rod in the foot chain, the conveying cheno 16 is compressed, and the gap between the conveying cheno 16 and the clamping rod 23 is configured to be automatically changed according to the amount of waste straw being conveyed. .

Next, the attitude changing means has an action portion 27a located on a plane substantially perpendicular to a plane containing the transport case 15, and a front end portion 15a.
A forced stock guide body 27 is fixed to the support plate 22 and the distance from the support plate 22 increases as it reaches the rear end portion 15b.

A take-up guide 28 is attached to the front end (transportation start end) of the clamping rod 23, and a wrap prevention rod 29 is fixed to the transport case 15 at the transport terminal end and the lower side of the transport case 15.

It goes without saying that the winding prevention rod 29 may be divided into an arcuate portion at the end of the conveyance and a straight portion at the lower end of the conveyance case 15.

The above-mentioned intake guide body 28 has its base approaching the upper surface of the conveyance cheno 16 in almost the same direction as the conveyance case 15,
It gradually moves away from the tip and upwards from the conveyance cheno 16,
The tip portion 28a is curved upward and sideways or backward toward the uncut side.

Reference numeral 33 denotes a receiver for relaying and supporting the stock base of the bundled waste straw that is being transferred from the binding machine 2 to the bundled waste straw conveying device 14.

In addition, a holding plate 35 made of a leaf spring whose base is fixed to the upper end of the straw separator and whose free end extends to the vicinity of the stock shutter 10 on the top surface of the straw straw deck 3 is installed to hold the straw being bundled upward. Press down more firmly and install a stock alignment plate 36 above the side of the straw pile 3 on the uncut side.

Reference numeral 30 denotes a fall guide plate, which is attached to the support plate 22 by mounting rods 31 and 32, facing the transport case 15 at the end of the lifting transport.
It is fixed to the transport case 15, and has a U-shape in plan view and is located almost vertically, and its lower end 30 a
is set to be higher than the upper end of the bundled waste straw released into the field in an upright position.

34 is a pair of left and right endless traveling devices.

Next, the effect will be explained.

The bundled waste bundled and discharged by the binding machine is
As shown in the figure, the receiver is transferred from the straw deck 3 to the bundled straw conveyor 14 by the discharge arm, but at this time, the bundled straw is guided from above by the take-in guide 28 and transferred to the receiver 3.
3, the tip of the ear is sent to the starting end of the conveyance chino 16, and the base of the stock moves more than the tip of the head under the action of the discharge arm 5, resulting in the state shown in FIGS. 5a and 5. The tips of the ears are lightly pinched from above and below between the conveyance cheno 16 and the base of the intake guide 28, and as they move backward as the conveyance chino 16 rotates, they roll and twist, and the stock base becomes conical. It is drawn toward the conveyance cheno 16 side while expanding toward the end, resulting in the state shown in Fig. 6 a, l).

Therefore, the movement progresses while changing from the state perpendicular to the bundling path shown in FIG. is the movement locus of the rear end of the stock.

As mentioned above, the receiver is connected to the bundled and removed straw conveying device 14, and while being held between the bundled and removed straw transfer cheno 16 and the clamping rod 23, it is transported while being pulled up to the side of the machine on the mowed land side at the rear of the machine. be done.

At this time, the bundled waste straw is almost perpendicular to the clamping rod 23 of the conveyor cheno 16, as shown in FIG. Since it is slightly rotated due to frictional resistance, the stock part is spread out into a conical shape and advances to the end of the conveyance.

The attitude changing action (relocation twisting action) of the bundled waste straw shown in FIG. Unlike the clamping state of the stock base of the reaped culm, the clamping rod 23 is elastically pressed against the support plate 22 by the compression spring 26 and is in a pressing support state, and the weight is reduced by being transported while being lifted up. Due to the rotational force of the bundle of straw due to the delay in conveyance at the base of the stock,
It is something that occurs.

Therefore, the conveyance state is different from the conveyance state in the conveyance device (feet chain) of the thresher, in which the stock base of the harvested husk is moved while being held.

Furthermore, since the clamping rod 23 is divided into a plurality of parts, only that part of the clamping rod that is acting on the bundled straw is turned, so that the bundled waste straw being conveyed can be reliably and strongly clamped. ing.

When transporting bundled waste straw in the bundled waste straw conveying device 14, the pressing force of the divided clamping rods 23 is determined depending on the presence or absence of bundled waste straw and changes in the size of the bundle of bundled waste straw. The compression rod 23 changes automatically under the action of the compression spring 26.
The straw is transferred while providing a frictional resistance corresponding to the bundled waste between the and the transfer ceno 16.

Further, in the event of an overload or a conveyance failure, the guide body support 21 expands both ends of the U-shaped pipe and moves the clamping rod 23 in a direction away from the conveyance cheno 16 to prevent the conveyance device 14 from malfunctioning.

The bundled waste straw transported in the vertical direction to the end of the bundled waste straw conveying device 14 in this manner is separated from the conveyance action in an upright position (vertical state in which the stock part is spread out in a conical shape and the stock head is directed downward). As a result, it falls vertically into the already cut field.

In addition, when the bundled waste straw falls vertically, the falling guide plate 3
0, the stock part is regulated in the vertical direction, and the posture change means (
By assisting the action of the forced stock guide body 27, the bundled waste straw falling from the terminal end of the conveying device 14 is more reliably held in an upright posture.

At the end of the conveyance device 14, due to the action of the anti-wrapping rod 29, a portion of the bundled waste away from the end of the conveyance cheno 16 is moved to the end of the conveyance cheno 16 and the conveyance chain rotating in the reverse conveyance direction. This prevents it from wrapping around the lower end conveyor cheno 16.

In this way, the bundled waste straw that fell vertically onto the harvested land is made to stand up with the base of the stalks spread out in a conical shape.
Natural drying of the bundled waste straw is carried out extremely well, and as shown in FIG. It is located so that it does not interfere with work.

In the above-described embodiment, the bundled waste straw conveying means is the bundled waste straw conveying device 14 which is installed diagonally so that the rear side is higher, but the joint position of the bundled waste straw receiver is higher than that of the waste straw binding machine 2. In some cases, it may be arranged horizontally or conversely so that the rear side is lower, as long as the conveyance end is located at a height suitable for vertically dropping the bundled waste straw.

In addition, since the upper end of the transport case 15 of the bundled and removed straw conveyor 14 is inclined inward (for example, 45 degrees), the mechanism is simplified to change the bundled and removed straw from the horizontal direction at the start end to the vertical direction at the end. It is convenient because it can be oriented vertically, but it can also be vertically oriented.

Further, the number of conveyance chenos is not limited to a single one, but two or more chenos may be used in parallel or in different directions.

For example, in addition to the conveyance device 14 for conveying the tips of the embodiment, a second conveyance device for conveying the stock part is provided, and the conveyance device 14 is disposed on a vertical surface, and the second conveyance device is disposed on a horizontal surface, with both conveyance chenos facing upward. By configuring the actuator to act sideways, the bundled waste straw can be placed in a vertical position at the end of the conveyance.

As mentioned above, the present invention is to allow the stem end of the straw to hang down under its own weight while the bundled waste straw bundled and discharged by the waste straw binding machine is carried out of the machine, and the tied waste straw is transported to the field. The clamping rod, which faces the conveyance cheno of the conveying device for standing upright in a downward position, is supported via a guide support that bypasses the tip side of the conveying case, so that the conveying case and the clamping rod are integrated. In addition to making it easier to attach the conveyor to the combine harvester, the lower part of the conveyor (stock side) is open, so space for three-dimensional transport is secured, and the stock side can be placed in a hanging position under its own weight. Conveyance while changing (three-dimensional conveyance release)
There is no problem in doing so.

Furthermore, the clamping rod is divided into a plurality of pieces and connected to each other, and is movably attached to the support plate fixed to the end of the guide body support by a spring action. The pressing force of the clamping rod is automatically increased or decreased depending on the size and the presence or absence of waste straw during transportation to smoothly transfer the bundled waste straw, and the guide body support is constructed with a U-shaped pipe. Therefore, in the event that a transportation problem occurs due to a malfunction, etc., the U-shaped pipe is deformed and expanded at both ends, causing the clamping rod to separate from the bundling straw conveyance cheno and remove the transportation obstruction caused by clogged straw, etc., and to remove the transportation problem due to overload. Failure of the means can be prevented.

In addition, since the transport surface of the transport device is configured as an inclined surface,
At the time of conveyance and handover, the bundled waste straw is set in a hanging position and the posture is changed to a conical three-dimensional posture by a transfer twisting action from a position near the starting end of the transport device, thereby enhancing the three-dimensional effect of the bundled waste straw.

Furthermore, in order to produce the above-mentioned effects, the conveying surface is made to be an inclined surface, but as mentioned above, since the clamping rod is supported through the guide body support of the U-shaped pipe, large bundles cannot be transferred due to the torsional action. In some cases, the U-shaped pipe is subjected to strong stress on the guide body support, and this has the effect of preventing overload due to an increase in the distance between both ends due to deformation, and allowing the bundled waste straw to be constantly held and conveyed.

[Brief explanation of drawings]

FIG. 1 is a plan view of a bundled waste discharge device embodying the present invention, FIG. 2 is a side view, and FIG. 3 is a rear view. FIGS. 4 to 7 are explanatory diagrams showing the conveyance state of the bundled waste straw, FIG. 4 is a plan view showing when the bundled waste straw is discharged from the waste straw binding machine, and FIG. A plan view showing a state in the middle of transfer to the conveying means, FIG. 5 is also a side view,
Fig. 6a is a plan view showing when the transfer of the bundled waste straw to the conveying means is completed; Fig. 6 is also a side view; Fig. 7a is a plan view showing the bundled waste straw being conveyed by the bundled waste straw conveyance means. , FIG. 7 is a side view, and FIG. 8 is a side view showing the conveyance end of the bundled waste straw conveyance means and the state of discharge into the field. FIG. 9 is a schematic diagram showing, in a plan view, the positional relationship between the course of the combine harvester and the bundled waste straw discharged onto the field. 2... Waste straw binding machine, 5... Discharge arm, 14... Binding waste straw conveying device, 15...
...Transportation case, 16...Transportation cheno, 21
...Guide body support.

Claims (1)

[Scope of utility model registration request] A bundled waste straw discharging device attached to a combine harvester equipped with a waste straw binding machine, which allows the stock side to hang under its own weight while the bundled waste straw bundled and discharged by the waste straw binding machine is carried out of the machine. The clamping rod 23 of the conveying device, which conveys the bundled straw while holding the tip of the bundle in order to stand the bundled straw in an upright position in the field with the stock side facing down, is divided into a plurality of pieces and connected to each other. , is attached to a support plate 22 supported via a guide body support 21 of a U-shaped pipe that detours from the conveyance case to the tip side, and is configured to face the conveyance cheno 16;
A bundled waste straw discharging device characterized in that the clamping rod is pressed against the conveying cheno 16 by a compression spring 26, and is configured to have an inclined surface forming an appropriate angle with respect to a horizontal line perpendicular to the conveyance direction of the bundled waste straw.