JPH033157Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial application field> This invention is installed in a part of a combine harvester, which is used as a type of agricultural equipment, and introduces the culm discharged from the combine into the culm cutter. The present invention relates to a waste culm processing device that prevents the introduction of waste culm into the cutter, and in particular allows the operator to perform the operation of introducing the waste culm into the cutter or not introducing the waste culm while remaining in the driver's seat of the combine harvester.

<Prior art and its problems> Conventionally, there have been two types of culm processing devices for combine harvesters as follows.

One of them is a very common type, as shown in Fig. 5, which is a cutter with a culm cutter stored below the end of the culm conveying chain a behind the culm outlet of the combine. A case b is provided, openings are formed at the top and bottom of the cutter case b, and a switching cover c that can be opened and closed is provided at the upper opening, and a switching cover c is provided above the terminal end of the culm conveyance chain a. , downward culm guide d
In order to guide the sent culm toward the cutter, the culm guide d is directed toward the upper opening of the cutter case b, and the switching cover c is moved upward. Rotate it to
The advancement of the culm was to be switched into the cutter case b.

Another type is, for example, Utility Model No. 58-70744
As shown in the publication, the switching cover is of a type that moves up and down.

By the way, in the former type of device, since the switching cover c and the culm guide d move symmetrically, their tips collide with each other and cannot be operated in conjunction with each other. , and because only a short switching cover c can be provided, the upper opening of the cutter case b has to be formed small, which sometimes creates a problem in inserting the culm into the cutter case b. In addition, in such a device, when the switching cover c is rotated to open it, it interferes with the upper culm conveyance chain a, so the fulcrum must be set downward, so that the fulcrum cannot be moved backwards. This also has the disadvantage that the culm conveying chain a does not work all the way to the end because it is installed in an oblique position.

In addition, in the latter case, in order to prevent the switching cover from colliding with the culm conveyance chain when it moves up and down, the corresponding part of the switching cover must be cut out in a slit shape, which is a safety hazard. This was a problem and the culm guide could not be installed.

Therefore, in order to solve these problems, the present applicant first arranged a culm cutter d below the terminal end of the culm conveying chain a, as shown in FIGS. 6 and 7, and At the end of the culm conveyance chain a, an upper cover e that covers the culm conveyance chain a and can be opened and closed at the rear is provided, and around the culm cutter d there are upper and lower openings f,
In a culm processing apparatus equipped with a cutter case b having an upper opening f of the cutter case b,
A sliding switching cover c' that can close the entire opening f is provided, and one end of the sliding switching cover c' is rotatably provided above the culm conveyance chain a. The bar h fixed on the shaft
When the lower end of the culm cutter d is connected to this shaft and the sliding switching cover c' is fully opened, the lower culm cutter d
Fix the culm guide i that rotates in the direction of the cut part,
Furthermore, the bar h and the openable upper cover e are connected by a rod j, and the upper cover e is opened and closed in conjunction with the opening and closing of the upper cover e located at the rear of the culm conveyance chain a. The sliding switch cover c' is closed by closing the top cover e, and the sliding switch cover c' is opened by closing the upper cover e. It provided the world with culm processing equipment. However, according to this device, all these operations can be performed only by opening and closing the upper cover e by hand.
Since c' is constructed to be opened and closed, it is inconvenient to have to get out of the operator's seat of the combine and go to the upper cover e in order to make this change.

<Means for solving the problem> Therefore, in contrast to the conventional example described above, this invention has a branch rod protruding from the shaft of the bar, and a switching lever and wire in which this branch rod is arranged near the driver's seat. A spring is disposed on the bar to bias the slide type switching cover in the opening direction, while a culm holding rail arranged parallel to the culm conveyance chain is connected to the bar in a pipe-like manner. A slideable extension rail is arranged on this pipe-shaped exhaust culm holding rail, and the extension rail is connected to the switching lever arranged near the driver's seat via a rod or the like. The sliding switching cover is opened and closed by switching a switching lever located nearby, thereby preventing the culm from being introduced into the culm cutter.

<First Embodiment> Next, the first embodiment of the culm treatment apparatus according to this invention will be described based on FIGS. 1 and 2.
2 is a culm conveying chain disposed behind the culm outlet of a combine harvester (not shown), and 2 is a culm cutter disposed below the culm conveying chain 1 in the terminal direction. This culm cutter 2 is already known and is constructed by disposing a disk blade 4 and a feed blade 4' at regular intervals on two parallel rotating shafts 3. Reference numeral 5 denotes a cover that covers the exhaust culm conveyance chain 1, and the rear part of this cover 5 is of a type that can be opened and closed, and this cover that can be opened and closed will be referred to as an openable and closable upper cover 6 in this embodiment.
Reference numeral 7 denotes a cutter case that covers the periphery of the culm cutter 2, and this cutter case 7 has openings (upper opening 8, lower opening 9) formed above and below. Reference numeral 10 denotes a sliding switching cover disposed at the upper opening 8 of the cutter case 7, and the switching cover 10 slides in the following manner. That is, a groove 11 is formed that continues in the upper end of the cutter case 7 and the direction in which the switching cover 10 slides, and shafts or rollers 12 are protruded from both front and rear end sides of the switching cover 10. The shaft or roller 12 is brought into engagement with the groove 11. Reference numeral 13 denotes a bar above the culm conveyance chain 1, one end of which is fixed to a rotatably arranged shaft 14. This bar 13 has a long hole 15 formed at the other end, and a long hole 15 is formed in the other end of the bar 13. One end of the switching cover 10 is connected. 16 is a culm guide that is fixed to the shaft 14 to which the bar 13 is fixed, and rotates in the direction of the cutting part of the culm cutter 2 located below when the switching cover 10 is fully opened; 13 and the open/close type upper cover 6 are connected to each other. 18 is
This is a culm feeding roller disposed below the upper opening 8 of the cutter case 7 and between it and the culm cutting cutter 2. Reference numeral 19 denotes a switching lever disposed near the driver's seat of the combine harvester, and the switching lever 19 is pivoted approximately in the middle by a shaft 20, and wires 21 and 22 are connected to the upper and lower ends of the switching lever 19, respectively. Reference numeral 23 denotes a branch rod protruding from the shaft 14 of the bar 13, and this branch rod 23 is connected to one of the wires 21 connected to the switching lever 19. A spring 24 connects the bar 13 and the cover 5, and the spring 24 biases the sliding switching cover 10 in the opening direction via the bar 13. Reference numeral 25 denotes a culm holding rail disposed in parallel with the culm conveyance chain 1, and this culm holding rail 25 is formed into a pipe shape, and an extension rail that can be slid onto this culm holding rail 25. 26 are arranged. 2
Reference numeral 7 denotes a first rod to which the tip of the extension rail 26 is connected, and one end of the first rod 27 is connected to one end of a long second rod 28.
The other end of the second rod 28 is rotatably disposed on the cutter frame, and a protrusion 29 is disposed approximately in the middle of the second rod. It is connected to another wire 22 connected to. A spring 30 connects the protrusion 29 and the cutter frame, and this spring 30 biases the second rod 28 so that it always rotates in one direction.

<Operation of the first embodiment> Basically, in order to guide the culm sent by the culm conveying chain 1 to the culm cutter 2, the openable top cover 6 is closed. That is,
Set the state as shown in FIG. Then, the bar 13 is rotated to the left in the figure by the rod 17 connected to the openable/closable upper cover 6, and the switching cover 10 is rotated so that the shaft or roller 12 is aligned with the groove 1.
The upper opening 8 of the cutter case 7 is opened. On the other hand, when the bar 13 rotates as described above, the shaft 14 to which the bar 13 is fixed also rotates by the same angle. Therefore, when the bar 13 rotates, the culm guide tool 16 also rotates accordingly. The guided culm is corrected by the culm guide 16 so that it is parallel to the culm cutter 2 from its oblique orientation by the culm conveyance chain 1, and then transferred to the feed cutter 4'. The culm feed roller 18 and the culm feed roller 18 act together.

The above operations can be performed while remaining in the driver's seat, but for this purpose, the switching lever 19 must be moved, for example, to
Rotate in the direction. Then, the wire 21 is loosened, the bar 13 is pulled by the spring 24, the switching cover 10 slides, the upper opening 8 of the cutter case 7 opens, and the upper cover 6 closes. On the other hand, since the other wire 22 is pulled, the second rod 28 rotates in the direction of the arrow against the spring 30, and as a result, the extension rail 2 connected to the first rod 27 rotates in the direction of the arrow.
6 slides inward of the culm holding rail 25. As a result, the extension rail 26 above the culm cutter 2 in the culm conveyance chain 1 no longer exists, so that the culm is supplied to the culm cutter 2.

Further, when the waste culm sent by the waste culm conveyance chain 1 is not guided to the waste culm cutter 2, that is, when performing so-called straw removal work, the retractable upper cover 6 is opened outward, contrary to the above. Then,
The bar 13 connected by the rod 17 rotates to the right in the figure, and the switching cover 10 slides in the same direction, thereby closing the upper opening 8 of the cutter case 7 and removing the cutter case. The culm guide 16 is also lifted, and since there are no obstacles in the process of transporting the culm by the culm conveying chain 1, the culm is slid on the upper surface of the cutter case 7 and released to the outside.

If this is done by operating the switching lever 19, then when the switching lever 19 is switched in the opposite direction, that is, in the Y direction, the wire 21 will be pulled, so the bar 13 will rotate against the spring 24. The switching cover 10 closes the upper opening 8 of the cutter case 7 and opens the upper cover 6, and since the other wire 22 is loosened, the spring 30
As a result, the first rod 27 and the second rod 28 are rotated in the biasing direction, and the extension rail 26 is extended to reach the entire length of the culm conveying chain 1.

<Second Embodiment> The difference between this embodiment shown in FIGS. 3 and 4 from the first embodiment is that only the wire 21 is connected to the switching lever 19, and the shaft 14 of the bar 13 is connected to the switching lever 19. A branch rod 23' is fixed in addition to the branch rod 23, and a wire 22' is connected to this.
The other end of 2' is connected to the protruding piece 29 of the second rod 28, and the spring 30' connected to this protruding piece 29 is biased in the opposite direction to the spring 30 of the first embodiment. The rest is the same as in Example 1, so the explanation thereof will be omitted.

<Operation of the second embodiment> When the switching lever 19 is switched in the X direction, the wire 21 is loosened, and the bar 13 is pulled by the spring 24, and the switching cover 10
slide into the upper opening 8 of the cutter case 7.
opens, and the upper cover 6 closes. On the other hand, when the bar 13 rotates as described above, the other wire 2
2' is also loosened, and the first rod 27 and second rod 28 are rotated by the spring 30 in the urging direction of the spring 30, and the extension rail 26 slides into the culm holding rail 25. Conversely, move the switching lever 19 to Y.
When the direction is switched, the wire 21 is pulled and the bar 13 is rotated in the opposite direction, which also pulls the other wire 22', and the movement of the switching cover 10, the upper cover 6 and the extension rail 26 is as described above. The opposite is true.

<Effects of the invention> As mentioned above, according to the waste culm processing apparatus according to this invention, by simply opening and closing the opening/closing type upper cover, the internal switching cover also opens and closes in conjunction, and when performing these operations, The switching cover does not interfere with the exhaust culm conveyance chain, and the upper opening of the cutter case, which should serve as the introduction port for the exhaust culm, can be made larger, which has the effect of improving operational safety. Furthermore, in conventional devices, the opening and closing of the cutter supply port begins and ends at the tip of the cutter by the switching operation, so if the switching operation is performed while the culm is continuously flowing, the culm This will stop the flow of water, thus causing a blockage, but
According to the device according to this invention, even when the culm is flowing continuously, the switching cover, the upper opening/closing cover, and the culm guide do not stop the flow of the culm, so it is possible to switch the culm without any trouble. It also has the great advantage of The above operations can be performed while remaining in the driver's seat, which also has the effect of increasing work efficiency.

[Brief explanation of the drawing]

The drawings show one embodiment of the waste culm processing device according to this invention, and FIGS. 1 and 2 show the first embodiment, of which FIG. 1 shows the switching cover open. Figure 2 is a cross-sectional view showing the state with the switching cover closed, Figures 3 and 4 show the second embodiment, and Figure 3 shows the state with the switching cover open. 4 is a sectional view showing a state in which the switching cover is closed, and FIGS. 5 to 7 are sectional views showing a conventional example. 1, a... Culm conveyance chain, 2, b... Culm cutter, 3... Rotating shaft, 4... Disc blade, 4'...
...Feeding blade, 5...Cover, 6, e...Openable top cover, 7, b...Cutter case, 8,
f... Upper opening, 9, g... Lower opening, 1
0, c'...Switching cover, 11...Groove, 12...Shaft or roller, 13,h...Bar, 14,20...
... shaft, 15 ... long hole, 16, i ... culm guide,
17,j... Rod, 18... Culm feed roller, 19... Switching lever, 21, 22, 22'
...Wire, 23,23'...Branch rod, 24,3
0, 30'...Spring, 25...Culm holding rail, 26...Extension rail, 27...First rod, 28...Second rod, 29...Protrusion piece.

Claims (1)

[Scope of utility model registration request] A culm cutter is disposed below the terminal end of the culm conveyance chain, and an upper cover that covers the culm conveyance chain and opens and closes at the rear is disposed at the end of the culm conveyance chain. A culm processing device is equipped with a cutter case that has an opening above and below the culm cutter, and a sliding switching cover that can close the entire opening is installed at the upper opening of the cutter case. One end of this sliding type switching cover was connected to the lower end of a bar fixed to a shaft with one end rotatably disposed above the culm conveyance chain, and the sliding type switching cover was fully opened to this shaft. At times, a culm guide tool that rotates in the direction of the cutting part of the lower culm cutter is fixed, and the bar and an openable upper cover are connected by a rod, and a branch rod is protruded from the shaft of the bar. This branch rod is connected via a wire to a switching lever disposed near the driver's seat, and a spring is disposed on the bar to bias the sliding switching cover in the opening direction. A culm holding rail arranged in parallel with the culm conveyance chain is formed into a pipe shape, and an extension rail is provided in a slidable manner on the pipe-shaped culm holding rail, and a switching lever arranged near the driver's seat and A culm processing device characterized by being connected.