JPS6029864Y2 - 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.

In this invention, in order to release the bundled waste straw in an upright state, the bundled waste straw that falls from the transport device is placed in a conveyor device that is installed to hold the tips of the bundles of waste straw and transport the bundles while allowing the stems to hang down under their own weight. A falling guide plate is installed to keep the fallen straw in an upright position, so that the bundled waste straw stands upright in the field during actual running, and the lower end of the falling guide plate is placed on the tip side of the upright removed straw in the field. Even if an upright culm in the field comes into contact with the fall guide plate on the outside of the rear end of the combine during the rotation of the machine or during the next process of reaping, etc., at least the tip side should contact to prevent it from bending and falling over, and the This facilitates post-processing.

Hereinafter, the present invention will be explained based on the 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 base of the waste straw that should be tied up in the first stage from falling.

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

A drive sprocket and a 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 waist transport case 15, and attaching the drive 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 to each other via a transmission cylinder 19 containing a transmission shaft and a bevel gear. A support pipe 20 is fixed to the base end of the case 18, and the first transmission case 18 receives power from the input shaft to the binding machine 2.
Transfer case 1 via transmission cylinder 19 and second transmission case 17
While driving the drive sprocket in 5, 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, in plan view, the front end 15a of the transport case 15 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 close to the rear end of the straw deck 3 on the side of the mowed land. The rear end portion 15b is located laterally at the rear of the machine body, and the rear end portion 15b is oriented upwardly rearward and diagonally toward the rear mowed land side so that the rear end portion 15b is located above the front end portion 15a in the vertical direction.

Further, in the embodiment, the rear end portion 15b of the transport case 15
is located above the front end portion 15a and in plan view (first
(see figure), the front end 15a is located near the extension line of the binding path of the binding machine 2, the rear end 15b is located on the side of the machine (already cut land side), and the transport case 15 is directed backward toward the already cut land side. It is installed diagonally.

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 the U-shaped pipe 21.21 is fixed to the transport case 15, and a support plate 22 is fixed to the other end, so that the support plate 22 faces the transport cheno 16 at the upper end of the transport case 15, and the clamping pressure is divided into a plurality of parts. A rod 25 having a pin 24 that connects the rods 23 with each other is attached to the support plate 22 so as to be movable in the axial direction.
3 in the foot chain, transport chain 1 in the same way as the clamping rod.
6 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 being conveyed.

Next, the attitude changing means includes a forced strainer in which the action part 27a is located on a plane substantially perpendicular to the plane containing the transport case 15, and the distance from the support plate 22 increases from the front end 15a to the rear end 15b. The original guide body 27 is fixed to the support plate 22.

A take-in 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 17 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 rod for relaying and supporting the base portion of the bundled waste straw stock 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. A stock alignment board 36 is provided above the side of the straw deck 3 on the uncut side.

Reference numeral 30 denotes a fall guide plate, which is fixed to the support plate 22 and the transport case 15 by mounting rods 31 and 32 so as to face the transport case 15 at the end of the lifting transport, and has a U-shape in plan view and extends approximately vertically. It has a vertical guide surface 30a including a surface substantially perpendicular to the direction of movement of the aircraft, and a lower end 30a thereof.
b is set to be located on the tip side of the tied waste straw in an upright position that is released into the field.

Even if the lower end 30b and the tip are set close to each other as shown in Fig. 8 for a typical culm length (for example, 90 cm), if the culm is long (for example, 110 cm), it will come into contact with the tip side of the upright bundled straw in the field ( However, the lower end 30b of the fall guide plate is located above the waist strap position).

Further, in the case of a short culm (for example, 75 cm), the lower end is above the bundled straw and is away from the tip.

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

Next, the action 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 conveying chino 16, and the base of the stock moves more than the tip of the head due to the action of the discharge arm 5, resulting in the state shown in FIGS. 5a and 5s. The tips of the ears are lightly clamped 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 spreads out at the end and is drawn toward the conveyor cheno 16, resulting in the states shown in Figures 6a and 6b.

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 conveying cheno 16 as shown in FIGS. Since it is slightly rotated due to resistance, the base portion of the stock is spread out into a conical shape and advances to the end of the conveyance.

In addition, since the clamping rod 23 is divided into a plurality of parts, only that part of the clamping rod that is working on removing the bundled straw is turned, so that the bundled waste straw being conveyed can be securely and strongly clamped. There is.

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). It falls vertically towards the already cut field.

In addition, when the bundled waste straw falls vertically, the falling guide 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 this time, the falling bundled waste straw contacts and is guided by the vertical guide surface 30a as the machine advances, and falls while being regulated in the direct downward direction, causing considerable disturbance in its posture.

In addition, at the terminal end of the conveying device 14, due to the action of the anti-wrapping rod 29, a part of the bundled waste away from the terminal end of the conveying chain 16 is moved to the terminal end of the conveying chain 16 and the lower end of the conveying chain rotating in the conveying direction. Wrapping around the side conveyor cheno 16 is prevented.

In this way, the bundled waste straw that has fallen vertically toward the harvested field is made to stand up with its base part spread out in a conical shape, and the natural drying of the bundled waste straw is performed extremely well, and as shown in Figure 9. As shown, it is located behind the driver's cab, paddy holder, etc., which are located laterally than the traveling device 34, so as not to obstruct the work of the next row of combine harvesters.

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.

Furthermore, with reference to FIG. 8, the lower end 30b of the fall guide plate 30
is located at a position slightly in contact with the tip of the bundled straw tip Ma above the binding string T of the bundled straw M standing upright in the field, or at a position above the tip of the bundled straw M.

Therefore, during reaping work with a combine harvester, the lower end of the falling guide plate 30 may come into contact with the tip of the bundled straw M standing upright in the field, but it is soft at a position above the binding cord. The tip of the head is bent and the bundled straw M does not fall over.

In addition, since the lower end of the falling guide plate 30 is located on the tip side of the upright bundled waste straw in the field, it generally has the maximum effective guiding length, except in the case of short culms, so that the falling bundled waste straw can be easily controlled. Make sure to guide it down vertically.

As described above, the present invention is a falling guide plate that facilitates the change in posture of bundled waste straw to an upright position as it is released from a conveying device that holds the tip side and transports the stem side while hanging down due to its own weight. At the same time, the lower end of the falling guide plate was set at the tip side of the bundled waste straw that was released into the field and stood upright. The bundled straw is neatly arranged in an upright position to facilitate post-work such as drying and collection, and it is also possible to stand upright in the field and keep the tip side of the bundled straw standing upright in the field during the next stage of reaping work or when the machine is turning. Since the lower ends of the fall guide plates are in contact with each other, the tip side is soft and will not bend and cause the upright bundled waste straw to fall.

In addition, since the falling guide plate has a vertical guide surface including a surface that is substantially orthogonal to the direction of movement of the machine, the vertical guide surface acts on the falling bundled waste as the machine moves, causing it to fall directly below. This has the effect of reducing the disturbance in the posture of the bundled waste straw when it falls and increasing the upright effect when it falls onto the field.

Furthermore, since the lower end of the falling guide plate hangs down to the tip side of the bundled waste straw standing upright in the field, the falling guide plate does not topple the bundled waste straw in the field as described above.

This has the effect of increasing the guiding action distance for the falling bundled waste straw and making it more reliable to stand upright in the field.

[Brief explanation of the drawing]

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. 4 to 7 are explanatory diagrams showing the conveyance state of the bundled waste straw, FIG. 4 is a plan view showing the time when the bundled waste straw is discharged by the waste straw binding machine, and FIG. A plan view showing the state in the middle of transfer to the conveyance means, FIG. 5 is also a side view,
Fig. 6a is a plan view showing the time when the conveyance of the bundled waste straw is completed, Fig. 6 is also a side view, and Fig. 7a is a plan view showing the bundled waste straw being transported by the bundled waste straw conveying 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, 30...
...Fall guide plate, 30b...Lower end of fall guide plate.

Claims (1)

[Scope of utility model registration request] A waste straw tying machine is installed at the rear of the combine harvester, and the waste straw is discharged towards the rear of the machine. A falling guide plate having a vertical guide surface including a plane substantially perpendicular to the direction of movement of the machine is provided at the end of the conveying device that holds the bundled waste straw released by the machine and transports it while hanging down by its own weight. A bundled waste straw discharge device characterized in that the lower end of the falling guide plate is positioned on the tip side of the bundled waste straw that is discharged into a field and stands upright.