JPS6010368Y2 - Combine waste straw processing equipment - Google Patents

Description

[Detailed description of the invention] 1. Industrial application field This invention is equipped with a straw cutter, a bundling machine or a bundling table,
The present invention relates to a waste straw processing device for a combine harvester, which allows waste straw to be taken out by a straw removal chain to be selectively obtained in a cut or uncut state.

1 Conventional technology Previously, for example, Utility Model Application No. 53-84565 and Utility Model Application No. 5
As shown in each publication of No. 2-55858, a straw removal processing switching plate that can be freely displaced between an upright and a backward tilted position is provided between the end of the straw removal chain and the upper surface of the straw removal cutter, and the straw removal operation surface of the straw removal chain is The straw removal processing switching plate is supported so as to be freely displaceable along the rotation locus of the end portion of the chain around a rotational fulcrum shaft lower than the above, and an emergency release lid is provided to release the waste straw to the outside of the machine when the straw is clogged. There was a technology in place.

Problems to be Solved by the First Invention In the prior art described above, the straw disposal switching plate and the emergency release lid were provided independently, so it was difficult to simplify their structure and improve their functionality. For example, when the upper surface of the cutter becomes clogged with straw during cutter operation, this pressure opens the switching plate, and then the pressure opens the lid to release the clogged straw. If there is a problem such as the straw clogging operation not being able to be released quickly due to problems such as the lid coming into contact with and getting caught, and if a sensing switch is provided to operate in conjunction with the opening of the lid due to the straw clogging, the conventional technology has been to install the sensing switch on the aircraft side. If the switching plate or lid is fixedly installed and has an elongated rectangular shape that is easily twisted in the middle, the sensing switch operation becomes unstable, and furthermore, when the switching operation between bundling and cutting the waste straw occurs, the switching plate or lid becomes unstable when cutting the waste straw. However, since it is necessary to operate the sensing switch in such a way that the sensing switch is activated, it is difficult to simplify the handling operation and there is a problem that malfunctions are likely to occur.

Means for Solving Problem 1 Accordingly, in the present invention, when straw is being cut with the switching plate in an upright position, the upper part of the cutter is clogged with straw, and when the switching plate is held in that position, only the lid is attached to the machine. The lid is supported on the switching plate so as to open outward, and a sensing switch for stopping the engine is fixed to the switching plate to detect opening movement of the lid due to straw clogging during the cutter operation. In addition, the switching plate is configured to be able to be operated with the sensing switch attached.

1) By holding the switching plate in an upright position and opening only the lid by the straw-clogging pressure, the switching plate can prevent the clogged straw from coming into contact with the inner wall of the machine body and getting caught. Even if a problem occurs, it can be released more quickly and smoothly than before, and by providing a sensing switch on the switching plate that is linked to the opening of the lid due to clogged straw, the switching plate can be opened upright or tilted backwards. The relative position of the lid and the sensing switch can be easily maintained substantially constant even in the posture,
Malfunctions of the switching plate for straw disposal and the sensing switch due to vibrations of the machine can be drastically reduced compared to the conventional method, and compared to the conventional method, the structure of the mounting of the switching plate and the lid, as well as their switching operations, etc. can be simplified. This can be easily performed, and the sensing switch operation can be stabilized to obtain appropriate engine stop control.

1st example Embodiments of the present invention will be described in detail below based on the drawings.

Fig. 1 is a schematic side view of the combine harvester, and Fig. 2 is a plan view of the same. A machine base supported by the truck frame 1 via 5, 6
9 is a threshing section that houses a handling barrel 1 and has a feed chain 8 installed on the left side; 9 is a weed dividing board 10 and a culm conveyor 1;
1 and a cutting blade 12, etc., and provided in front of the threshing section 6, and 13 is a grain lifting cylinder 1 for removing grains from the threshing section 6.
4 facing the paddy tank, 15 an auxiliary workbench, 16 an engine mounted on the machine platform 3 behind the paddy tank 13, 17 a driver's cab supported by the truck frame 1 and located in front of the paddy tank 13, 18 19 is a driver's seat, 19 is a driving operation unit including side clutch levers 2G, 20, etc., and 21 is a straw removal cutter that faces the end of a straw removal chain 22 connected to the end of the feed chain 8 and has a built-in straw removal cutter 23. Section 24 is a straw tying part including a tying machine 25 that is detachably attached to the rear surface of the straw cutting section 21, and the culm is continuously harvested by the reaping section 9, and the culm is transferred to the feed chain 8. The grains in the threshing section 6 are taken out to the paddy tank 13, and the threshed culms, that is, the waste straw, are transferred from the feed chain 8 to the waste straw chain 22, and either the switching section 21 or the bundling section 24 to said chain 2
2, and the waste straw is cut or bundled (non-cut).

The binding portion 24 includes left and right side plates 26, 26, and each plate 26.
26, a straw removal chute 29 having a culm guide 28, a tip chute 30, a tying cord roll 31, and an auxiliary roll 31, and the tying machine 25 of a well-known structure can be connected to the shoe 29. It will be installed in the 30th section.

As shown in FIG. 3, the straw removal cutter 23 is equipped with a scraping cutting blade 33 and a disc-shaped cutting blade 34, and as shown in FIG. The moons 33... and 34... are each pivoted, and the end of the straw discharging chain 22 is faced approximately at the center of the cutter 23, and a straw discharging gad rod 37 is attached to the lower working surface 22a of the chain 22. The straw that is attached and conveyed by the chain action surface 22a and the guide rod 37 is formed so as to fall onto the upper surface of the overlapping part of each cutting blade 33.34 in a posture parallel to the cutter shaft 35, 36.

A straw disposal switching plate 4 is provided above the cutter 23 in order to close either one of the straw dropping port 38 above the cutter 23 or the straw discharge port 40 of the cutter rear plate 39 and open the other.
1 will be provided.

Both ends of the switching plate 41 are connected to cutter side plates 6 shown in FIG.
Left and right rotation fulcrum shaft 42 is attached to the brackets 66 and 67 of 5 and 65.
．． 42, and the working surface 2 of the chain 22
2a, and rotate the switching plate 41 around the fulcrum shaft 42 along the arc of the end of the chain 22, for example, so that the end of the chain 22 is tilted backwards downward. The switching plate 41 is inserted, and the drop opening 38 is closed by the switching plate 41 in the backward tilting position.
While opening the discharge port 40, the switching plate 41 is brought upright close to the end of the chain 22, and the switching plate 41 is brought into contact with a stopper 43 formed on the discharge port 40, so that the switching plate 41 in the upright position closes the discharge port. 40 is closed and the drop port 38 is opened.

The base end of a culm presser bar 46 is rotatably supported at the end of the chain guide 44 of the straw removal chain 22 via a support shaft 45, and a spring is installed to bring the tip of the presser bar 46 close to above the cutting blade 34. 47 will be provided.

Further, as shown in FIG. 2, a straw disposal switching lever 48 is provided near the driver's seat 18.

As shown in FIG. 4, the base end of the lever 48 is connected to one end of a base plate 50 which is rotatably supported in the middle on a support shaft 49, and the coupling plate 5 is connected to the other end of the base plate 50 via a buffer spring 51.
Connect 2.

A link 53 integrally formed at the base end of the presser rod 46 is connected to the connecting plate 52 via a wire 54, and a link 55 whose intermediate part is fixed to the right rotation fulcrum shaft 42 and rotates integrally with the switching plate 41. The lower end of the link 55 is connected to the connecting plate 52 via a wire 56, and the upper end of the link 55 is connected to the middle of the lever 48 via a wire 57 and a buffer spring 58. When the outlet 40 is closed and the outlet 40 is opened, the presser bar 46 moves upward against the spring 47, and when the outlet 40 is closed and the drop port 38 is opened, the spring 47 moves the presser bar 46 downward. The presser rod 46 is moved so that the tip of the presser rod 46 faces the upper surface of the cutting blade 34.

Further, as shown in FIGS. 3 and 6, a link 59 that rotates integrally with the switching plate 41 is provided on the left rotation fulcrum shaft 42, and a spring 60 is applied to the link 59 to force the drop port 38. Alternatively, the switching plate 41 may be supported by the spring 60 to ensure that either one of the discharge ports 40 is kept closed by the switching plate 41.

As shown in FIGS. 3 and 5, an emergency release lid 62 is provided to release waste straw outside the machine from the discharge port 40 when the straw is clogged, and the emergency release lid 62 is connected to the switching plate 41 via a hinge 61. The lid 6 is attached as shown in FIG.
2. Leaf springs 63 are provided at both ends of the switching plate 41 to engage the bulges 62b, 62b on both sides and close and support them below a certain pressure, and when the lid 62 is opened, the engine 1
A pair of left and right sensing switches 64.6 that stop 6.
4 are fixedly installed inside both ends of the switching plate 41, and the switching plate 41 with the lid 62 and the switch 64 fixed is operated, while the drop port 38 is closed by the switching plate 41 as shown in FIG. When the upper edge 62a of the lid 62 comes into contact with the lower edge 39a of the outlet 40 and the outlet 40 is closed by the switching plate 41 in the upright position as shown in FIG. The straw fed by the straw chain 22 clogs the upper side of the cutter 23, and the pressure of this straw clogging becomes higher than the setting, causing the switching plate 41. While the machine is held in an upright position, the waste straw pushes open only the lid 62 to the outside of the machine body against the leaf spring 63, and the waste straw is discharged to the outside of the machine body via the switching plate 41. It is something.

The present invention is constructed as described above, and when the waste straw taken out by the straw removal chain 22 is sent to the bundling machine 25 and tied to an appropriate size, the switching lever 48 is moved to the solid line position in FIG. When the switching plate 41 is rotated to the solid line position in FIG. Port 38 is closed and discharge port 40 is opened.

Therefore, the working surface 22a of the straw removal chain 22 and the guide rod 3
When the waste straw pinched and conveyed by 7 reaches the end of the chain 22, the waste straw falls onto the switching plate 41, flows down through the discharge port 40 onto the chute 29.30, and is transferred to the tying machine 2.
5, they are tied into appropriately sized bundles and released into the field.

At this time, the fulcrum crossing spring 60 causes the upper edge 62 of MB2 to
a is supported in contact with the lower edge 39a of the discharge port 40,
The switching plate 41 can be fixedly supported with the drop opening 38 closed, and the straw can be fixedly supported by the switching plate 41 without causing any inconvenience such as the waste straw getting caught in the part due to the vibration of the switching plate 41. Even if these drive systems are formed with a simple structure by driving the binding machine 25, the cutter 23
Since the tying machine 25 can be operated without load, the tying machine 25 can be reliably driven.

When the straw to be taken out by the chain 22 is supplied to the cutter 23 and cut into appropriate lengths, the switching lever 48 is moved to the imaginary line position in FIG. 4, and the switching lever is placed in an upright position as shown in FIG. 41 closes the discharge port 40, the culm presser rod 46 is rotated downward by the spring 47, and the tip of the rod 46 approaches the upper surface of the cutting blade 34.

Similarly to the above, when the straw sent by the chain action surface 22a reaches the end of the chain 22, the culm presser rod 4
6, the waste straw falls to the overlapping cut portion of each cutting blade 33, 34 through the drop port 38, is shredded into appropriate lengths, and is dispersed in the field.

At this time, when the upper part of the cutter 23 is clogged with waste straw and the waste straw sent by the chain 22 accumulates appropriately 8 times above the cutter 23, only the lid 62 is opened to the outside of the machine due to the pressure of the waste straw. The waste straw falls to the outside of the machine via the switching plate 41 held in an upright position, and the sensing switch 64 is activated to stop the engine 16.

As described above, when the rotation fulcrum shaft 42 is set at a lower position than the operating surface 22a of the straw removal chain 22 and the switching plate 41 is rotated along the end of the chain 22, the chain 22
and the cutter 23 can be placed relatively close to each other, the discharge port 40 can be opened near the end of the chain 22, the cutter 23 can be stored in a narrow space, and the width of the cutter 23 can be made approximately the same as the overall width of the machine body. , and even if the width of the cutter 23 and the switching plate 41 are formed to have approximately the same length, when the switching plate 41 is rotated by operating the lever 48, if the wires 56 and 57 act on one end of the switching plate 41, At the same time, since the fulcrum cross-over spring 60 acts on the other end of the switching plate 41, inconveniences such as twisting and deformation of the switching plate 41 are prevented, and the rotational displacement of the switching plate 41 causes the fall port 3
And the discharge port 40 can be opened and closed reliably, so that the winter 38,
40, and can be formed into a relatively small area.

1. Effects of the invention As is clear from the above embodiments, the present invention includes a straw removal processing switching plate 41 that can be freely displaced between an upright position and a rearward tilted position between the terminal end of the straw removal chain 22 and the upper surface of the straw removal cutter 23. and a rotation fulcrum shaft 42 lower than the conveying surface of the straw removal chain 22.
In this device, the straw removal processing switching plate 41 is supported so as to be freely displaceable along the rotation locus of the terminal end of the chain 22, and an emergency release lid 62 is provided to release the waste straw to the outside of the machine when the straw is clogged. , the switching plate 41 was cut due to straw clogging on the upper side of the cutter 23 during straw cutting with the switching plate 41 in an upright position.
while supporting the lid 62 on the switching plate 41 so that only the lid 62 opens outward from the aircraft body while holding the lid 62 in that position;
A sensing switch 64 for stopping the engine 16 detects opening of the lid 62 due to straw clogging during the cutter 23 operation.
is fixed to the switching plate 41, and with the cover 62 and sensing switch 64 attached to the switching plate 41, the switching plate 4
1 is configured to be switchable, and by holding the switching plate 41 in an upright position and opening only the lid 62 by the straw-clogged pressure, it is possible to prevent the clogged straw from coming into contact with the inner wall of the machine body and getting caught. This can be prevented by the switching plate 41, and even if straw clogging occurs, it can be released more quickly and smoothly by opening only the lid 62 than before, and the sensing switch 64, which is linked to the opening of the lid 62 due to clogged straw, can be switched. By providing this on the plate 41, the relative positions of the lid 62 and the sensing switch 64 can be easily maintained substantially constant regardless of whether the switching plate 41 is in an upright position or tilted backwards. Malfunctions of the sensing switch 64 due to vibrations of the aircraft body can be drastically reduced compared to the conventional method, and the mounting structure of the switching plate 41, the lid 62, etc. and the switching operation thereof can be simplified compared to the conventional method. and the sensing switch 64
It is possible to stabilize the operation and obtain appropriate stop control of the engine 16, and it has practical effects such as being able to easily install the sensing switch 64 and adjust its operation timing, making it safer to handle than before. It is.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a schematic side view of the Hunbain, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view of the main part, and Fig. 4 is a side view of the main part. , FIG. 5 is a partial explanatory diagram,
FIG. 6 is an explanatory view taken along line AA in FIG. 3. 16...Engine, 22...m715
Chain, 23... Straw cutter, 41...
... straw disposal switching plate, 42 ... rotation fulcrum shaft,
62...Emergency opening lid, 64...Sensing switch.

Claims (1)

[Scope of utility model registration request] A straw removal processing switching plate 41 is provided between the terminal end of the straw removal chain 22 and the upper surface of the straw removal cutter 23 and is movable between an upright position and a backward tilted position, and has a rotation fulcrum lower than the conveying surface of the straw removal chain 22. The straw removal processing switching plate 41 is supported so as to be freely displaceable along the rotation locus of the end portion of the chain 22 around the shaft 42, and an emergency release lid 62 is provided to release the waste straw to the outside of the machine when the straw is clogged. In the apparatus, the switching plate 41 is set so that only the M62 opens outward from the machine body while the switching plate 41 is held in that position due to straw clogging on the upper side of the cutter 23 during straw cutting with the switching plate 41 in an upright position. M62 is supported by the cutter 23, and the M62 is
A sensing switch 64 for stopping the engine 16 that detects the opening movement of the switch 62 is fixed to the switching plate 41.
1. A waste straw processing device for a combine harvester, characterized in that a switching plate 41 is configured to be switchable with a lid 62 and a sensing switch 64 attached to the combine harvester.