JPS6119638Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a swinging device for a swinging and receiving tool for cut straw, which is advantageous for scattering cut straw in a combine harvester or the like in a field.

Conventionally, in order to smoothly discharge cut straw to a field, there is a device that periodically swings a cut straw receiving tool, such as one disclosed in Japanese Utility Model Application Publication No. 52-126169. The swinging device of the cut straw receiving device described in the publication has a rotary plate attached to the end of the rotating shaft of the straw cutter, and the cut straw receiving device is tilted and pivotally supported on the straw cutter cover so as to be able to swing freely. The tool and the rotary plate are connected by a swinging link, and the cut straw receiving tool is constantly oscillated during the movement of the straw cutter, and the cut straw is smoothly discharged to the field. This has the effect of reducing the angle of inclination of the cut straw receiving tool to the ground.

Cut straw discharged into the field is preferably spread as evenly as possible, whether it is concentrated on a roll baler as feed or spread as natural fertilizer. However, the conventional swing-type cut straw receiving device described above only deposits the discharged cut straw in a row on the travel line of the combine harvester or the like, or along the sides thereof, so manual labor is required to spread it. The disadvantage was that it required

The present invention was devised with the aim of solving the above-mentioned conventional drawbacks, and the present invention is designed to quickly move the cut straw in the direction of discharging the cut straw while swinging the cut straw receiving device. The aim is to improve the dispersion effect of the cut straw into the field by imparting scattering force to the straw.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings. In addition, in this specification, the former means the second
"Rear" refers to the left side of the figure, "back" refers to the right side of the figure, "left" refers to the left side of Figure 1, and "right" refers to the right side of the figure.

FIG. 1 is a rear view of a combine harvester equipped with a swinging device for a cutting straw singing motion receiving device according to the present invention (hereinafter referred to as the device according to the present invention) 1, and 2 in the figure is a driving section of the device 1 according to the present invention. . The driving node 2 is, as shown in FIG.
A boss 5 provided with two rod-shaped eccentric members 4, 4 is tightened and fixed 6 to the rotating shaft 3a of the scraping roll 3 (see Fig. 1), and the eccentric members 4, 4 are attached to the extension axis A of the rotating shaft 3a. The outer periphery of the radius R centered on is divided into approximately two equal parts. On the outer periphery of the eccentric members 4, 4, short tube-shaped cushioning materials 7, 7 whose entire or surface layer is made of rubber, synthetic resin, etc. are rotatably mounted. A side plate 8 is fitted across the ends of the eccentric members 4, 4, and is stopped by split pins 9, 9 to prevent the cushioning materials 7, 7 from escaping from the eccentric members 4, 4. Reference numeral 10 denotes a driven joint, and as shown in FIGS. 1 and 2, the driven joint 10 is vertically disposed vertically movably on a bracket 12 attached to the left side wall 11a of the exterior cover 11. Section 1
It is engaged with a quick return mechanism 14 which has a compression spring 13 sandwiched between a flange 10a formed near the center of the bracket 10 and the lower surface of the bracket 12. Also, driven clause 1
0 is provided with a horizontally curved hook portion 10b, and the hook portion 10b is periodically pulled by the eccentric members 4, 4 equipped with the cushioning material 7 as the driving joint 2 rotates. As a result, the driven joint 10 is lifted upward and eventually reaches the uppermost position, and the eccentric members 4, 4 of the driving joint 2 pass through the uppermost position and are separated, so that the driven joint 1 is Constructed to fall quickly.

By the way, a bracket 15 is disposed on the left lower surface 11b of the exterior cover 11.
A counter shaft 16 to which a long arm 16a and short arms 16b, 16b are attached is pivotally supported.
In addition, a chute 1 provided at the bottom of the exterior cover 11
A cut straw swing receiving tool 18 is pivotally attached to 1c so as to be movable up and down using its base as a fulcrum. The end of the long arm 16a attached to the counter shaft 16 is connected to the lower end of the driven joint 10, and the end of the other short arm 16b is connected to the link 1.
It is connected to the cut straw swing receiving device 18 via 7 and 17. Therefore, when the driven joint 10 is at the lowest position shown by the solid line in FIG.
The hanging part 10b of 0 is hooked and lifted by the eccentric member 4 approaching as the driving joint 2 rotates, and the lower end of the driven joint 10 rises to the uppermost position shown by the two-dot chain line in the figure, and is cut at the same time. The lower discharge end 18a of the straw swinging receiver 18 also rises as shown by the two-dot chain line.
The hanging portion 10b of the driven joint 10 separates from the eccentric member 4 of the driving joint 2 when it passes the uppermost position and rapidly falls. However, at that time, the other eccentric member 4 of the driving link 2 is directly below the hook portion 10b, so
The hanging portion 10b falls until it comes into contact with the other eccentric member 4, and suddenly stops at the lowest position. Accompanied by such movement of the driven joint 10, the cutting straw swinging support device 18
The discharge end 18a also suddenly descends and stops suddenly. As already explained, the driven joint 10 is engaged with the quick return mechanism 14 equipped with the downwardly biased compression spring 13.
The own weight of the shaft and the repulsive force of the compression spring 13 act synergistically to assist the falling speed of the driven joint 10. Therefore, the falling speed of the driven joint 10 is further increased, and the sudden stop is shocking. However, the impact in this case is alleviated by the cushioning materials 7, 7. In this way, the discharged cut straw is given a scattering force,
The diffusion effect to the field is improved.

In addition, in FIGS. 1 and 2, 20 is a crawler, and 19 is a cutting blade. Further, numeral 21 indicated by a broken line in FIG. 2 is a culm transfer device.

FIG. 4 is a perspective view showing an embodiment of another aspect of the present device, in which the driving link 2' is not shown, but
It is fixed to a suitable rotational drive part. In the drive joint 2', a gradual outer curve in a radial direction starting from the circumferential surfaces 2'b, 2'b of the boss portion extends to both tip portions 2'c, 2'c, and a curved line is formed inside the gradual outer curve. Both tips 2'c,
Inner curved stepped portions 2'a, 2'a are formed between 2'c and the circumferential surfaces 2'b, 2'b of the boss portion, and the entire surface is approximately S.
It is shaped like a cam. Both tip ends 2'c, 2'c of the gradually opening outer curve in the driving joint 2' play the role of eccentric members 4, 4 in FIG. 3. dependent clause 1
The hook part 10'b of 0' is made of rubber,
A short tubular buffer material 7' made of synthetic resin or the like is rotatably mounted. Although not shown, the driven joint 10' is engaged with the quick return mechanism 14 and is always directed downward (arrow B), similar to the embodiments shown in FIGS.
The lower end thereof is connected to the cutting straw swing receiving device 18 via a long arm 16a, a short arm 16b, a link 17, etc. In the case of the proposed device 1', the arrow C of the driving section 2'
As it rotates in the direction, the hanging portion 1 of the driven joint 10'
0'b rises while rotating and contacting the buffer material 7' along the gradually opening outer curve of the driving joint 2', and the tip part 2'c
Leave when it exceeds. And dependent clause 1
0' rapidly falls until its cushioning material 7' abuts against the boss portion circumferential surface 2'b of the driving link 2'. The device 1' of the present invention shown in FIG. 4 is constructed so that the driven joint 10' repeatedly rises and rapidly falls as described above. Although not shown in the drawings, the boss portion circumferential surface 2'b of the driving joint 2',
2'b may cover the portion of the driven joint 10' that contacts the hanging portion 10'b and the cushioning material 7' with a cushioning material.

As described in detail above, the present device periodically disengages and disengages the rotating driving node and the driven node, causing the driven node to repeatedly rise and fall rapidly, and when the driven node rapidly falls, this is caused by an impact. The operation of the driven joint causes the cut straw swing receiving device connected to the driven joint to rapidly move in the direction of discharging the cut straw during the swinging operation, causing the cut straw to be scattered. It imparts force and thereby improves the spreading effect of cut straw in the field. Therefore, it is possible to facilitate the work of bundling cut straw discharged to a field with a roll baler as feed, or to uniformly spread and fertilize the soil with cut straw. Furthermore, since the cut straw can be rapidly discharged, it is no longer necessary to install the cut straw swing receiving device on a steep slope, so the height of the machine such as a combine harvester can be designed to be low. Furthermore, since a cushioning material is interposed between the abutting part of the driving joint and the driven joint, even when the driven joint suddenly stops due to a rapid fall, no harsh impact noise is emitted, and the impact part is There will be no damage.

[Brief explanation of the drawing]

Figure 1 shows a partially cutaway rear view of the combine harvester with the proposed device installed, Figure 2 shows a partially cutaway left side view of the proposed device installed at the rear of the combine, and Figure 3 shows an embodiment of the proposed device. The enlarged sectional view and FIG. 4 are perspective views showing another embodiment of the present device. 2, 2'...Driving joint, 7, 7'...Buffer material, 1
0,10'...Followed joint, 14...Quick return mechanism, 18
... Cutting straw swinging receiver.

Claims (1)

[Scope of utility model registration request] It consists of a driving joint attached to a rotation drive part and a driven joint connected to periodically swing the cutting straw swinging receiver, and the driving joint is engaged with the driven joint as it rotates. An eccentric member is provided which lifts the driven part and then causes it to fall at a predetermined head and suddenly stop when it is detached. A rocking device for a rocking and loading tool for cutting straw, characterized in that a quick return mechanism is engaged to assist the speed.