JP2001211724A - Combined harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester which is capable of performing an opening and closing action of a dust cover for closing a space between a dust plate of the reap part and the thresher while making the dustproof plate not be damaged and is capable of lifting and lowering the reaping part. SOLUTION: The rear edge side of the dust cover 12 is relatively rotatably connected to the free edge side of a supporting arm 13 supported rockingly in the longitudinal direction around the same center of an axis as the center 6a of an axis rockingly lifting and lowering a reaping part relatively to a traveling machine body. The front edge side of the dust cover 12 is supported on the dustproof plate 11 through a guide rail 16 attached to the dust cover 12 and a supporting member 14 fixed to the dust plate 11 in an engaged state with the guide rail 16 slidably in the longitudinal direction of the machine body by a roller 17 and in a relatively unmovable manner in the vertical direction of the machine body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reaping unit including a cutting device for cutting a planted grain culm, a conveying device for supplying the cut culm from the cutting device to a threshing device, and a dustproof plate. And a dust cover that is swingably moved up and down around a horizontal axis of the machine body, and that is provided with a dust-proof cover that covers a space between the dust-proof plate and the threshing device above a grain culm transfer path by the transfer device.

[0002]

2. Description of the Related Art There has been a conventional combine combiner disclosed in Japanese Utility Model Laid-Open No. 2-93927. That is, the rear end side of the dustproof cover is rotatably connected to the free end of the support arm that is supported by the traveling body so as to be able to swing back and forth around the horizontal axis of the body, and is attached to the front end side of the dustproof cover. The dust cover is moved above the dust plate in the fore-and-aft direction of the machine, and covers the space between the dust plate and the threshing device above the culm transport path by the transport device. Closed position, switched to the open position to release the cover above the grain culm transport path, when cutting and running, the dustproof cover to the closed position, to suppress dust from rising from the cutting unit, When performing pillow handling, there is a type in which the dustproof cover is set to the open position, and the harvested grain stem is inserted from between the dustproof plate and the threshing device and supplied to the threshing feed chain. Further, in this conventional apparatus, the support arm is supported so as to swing back and forth around the same axis as the swing axis of the reaping unit with respect to the traveling machine body, and the support arm is connected to the reaping unit. Even if it is attached to the side, the mowing part and the support arm are relatively swung when the mowing part moves up and down, such as by being supported by the mowing part frame so as to be relatively rotatable, and the supporting arm is stationary without swinging. I can do it. In addition, the cutting section is provided with a locking member whose upper end side is slidably hooked to the body front-rear rod included in the dustproof cover, so that the support arm does not swing when the cutting section rises. Meanwhile, the dust-proof plate pushes up the front end side of the dust-proof cover via the roller, and when the mowing part descends, the locking member pulls down the front end side of the dust-proof cover while keeping the support arm from swinging. The dustproof cover has a rear end side and a free end side of the support arm that are pivotally connected to each other. Could be done.

[0003]

Conventionally, when the dust-proof cover is opened and closed or when the mowing unit is moved up and down, the roller rolls on the dust-proof plate, and the dust-proof plate is liable to be scratched or stained. In addition, the dust-proof cover is likely to vibrate or generate noise due to the occurrence of kinks or rattling between the locking member and the rod on which the locking member is hung. An object of the present invention is that even when the support arm is attached to the cutting section, the cutting section can be moved up and down while the dustproof cover only swings with respect to the support arm. It is an object of the present invention to provide a combine that does not damage the dust-proof plate when opening and closing or raising and lowering the mowing part, and the dust-proof cover operates smoothly and quietly.

[0004]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Structure] A cutting device including a cutting device for cutting planted grain culms, a conveying device for supplying the cutting grain culm from the cutting device to a threshing device, and a cutting unit having a dust-proof plate are provided on a traveling machine body with a horizontal shaft. Swivel up and down freely around the core,
In a combine equipped with a dustproof cover that covers a space between the dustproof plate and the threshing device above the grain culm transport path by the transporting device, the body is moved back and forth around the same axis as the swing axis with respect to the traveling body of the mowing unit. The rear end side of the dustproof cover is connected to the free end side of the support arm that is swingably supported in the direction so as to be relatively rotatable around a horizontal axis of the fuselage. A body front-rear guide rail provided with a dustproof cover in a state of swinging with respect to the support arm, and slidably with respect to this guide rail,
Further, the front side of the dustproof cover is supported by the dustproof plate via a support member fixed to the dustproof plate in a state in which the relative movement in the vertical direction of the fuselage is impossible. Let me do it.

[Operation] A support arm for rotatably supporting the rear end of the dust-proof cover is swingably supported back and forth, and the front end of the dust-proof cover is supported by the dust-proof plate via the guide rail and the support member. Therefore, the dustproof cover moves above and below the dustproof plate in the fore-and-aft direction, and the closed position that covers the space between the dustproof plate and the threshing device above the grain culm transport path, and the cover above the grain culm transport path. The dustproof cover can be opened and closed so that the dustproof cover is switched to the open position for releasing. In addition, the mowing portion is raised and lowered while raising and lowering the front end side of the dustproof cover via the support member and the guide rail by the dustproof plate. Since the support arm is supported so as to be able to swing back and forth around the same axis as the swing axis of the cutting unit with respect to the traveling machine body, when the cutting unit is moved up and down, the cutting unit relatively swings with the support arm. A support arm that is raised and lowered while the support arm is stationary and the dust cover is swung with respect to the support arm by pushing up and down via the guide rail and the support member on the front end side of the dust cover. Can be attached to the mowing part. When the dustproof cover is opened and closed, and the mowing part is raised and lowered, the guide rail and the support member slide and engage with each other, so that the dustproof plate is not damaged or dirty, and dust is prevented from being twisted or rattled. While the cover is supported by the dust-proof plate so as to be relatively movable, the cover can be opened / closed and raised / lowered while being pushed up and down.

[Effect] Even when the support arm is attached to the reaping part, the reaping part is mounted such that the support arm is kept stationary and the dustproof cover is raised and lowered while swinging up and down, and the dustproof cover is attached to the support arm. On the other hand, it is possible to raise and lower the reaping unit while securing a stable state or a quiet state where it is difficult for other movements only by swinging up and down. Also,
The dust-proof cover is supported on the dust-proof plate via the guide rail and the support member so as to be relatively movable, and is capable of being pushed up and down, so that the dust cover is relatively moved while being hardly twisted or rattled, and is pushed up and down. Also from this surface, the swinging associated with the opening and closing of the dustproof cover and the raising and lowering of the mowing part can be performed stably and quietly so that noise and vibration are hardly generated. Further, the dustproof plate is not damaged or stained.

The structure, operation and effect of the invention according to claim 2 are as follows.

[0009] In the configuration according to the first aspect of the present invention, a holding mechanism for holding the support arm in a mounting position in which the dustproof cover is in a closed position in which the dustproof cover covers the upper part of the grain culm conveying path is operably provided. It is.

[Operation] When the holding mechanism is operated, the holding mechanism holds the dustproof cover in the closed position by holding the support arm in the mounting position. Then, even if the mowing part is moved up and down and the dust cover is opened due to friction between the support member and the guide rail, the dust cover is held in the closed position against the operating force. Let me do.

[Effect] The dust-proof cover is held in the closed position so as not to be opened with the raising / lowering operation of the mowing part, and the situation where the dust-proof cover is opened and dust soars can be surely prevented from occurring unexpectedly. Can work.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, planted cereals are raised and processed by a plurality of raising devices 1 arranged side by side in the machine body, and are clipped by a clipper-type cutting device 2. The main frame 6 of the cutting section 5 which is transported rearward by the transporting device 3 comprising a pinching transporting device acting on the side and an engaging transporting device acting on the tip side and supplying it to the threshing feed chain 4a of the threshing device 4. The crawler-type traveling device 7 and the driver's seat 8
, A driving unit provided with the threshing device 4 and connected to a supporting portion 9 located on the front side of the threshing device 4 on the side of the driving unit of the traveling body provided with the threshing device 4 so as to be rotatable around a shaft core 6a oriented laterally to the machine. At the same time, the lift cylinder 1
0s are connected to form a combine. That is,
The cutting unit 5 cuts the planted grain culm such as rice and wheat, supplies the cut grain culm to the threshing device 4, and performs threshing by the rotating rotating drum in the threshing unit of the threshing device 4. It is. The lift cylinder 10
Thus, the mowing unit 5 is swung around the shaft core 6a with respect to the traveling machine body to perform an ascending and descending operation.

As shown in FIGS. 1 and 3 and the like, the raising device 1 and the conveying device 3 are formed so as to cover the upper side and the lateral side of the front portion, and are also used for removing the grain stem fixed to the raising device 1 and the like. The dustproof plate 11 is provided in the cutting unit 5, and the transport device 3 transports the cut culm to the threshing device 4 so as to supply it to the threshing device 4. The dustproof plate 11 and the dustproof cover 12 prevent the dust generated from the grain stalks that are caused by the cutting unit 5 from being cut and conveyed, so as to be covered by the cover 12, and are planted on an uncut ground. The dust stalk 11 prevents the falling stalks from falling into the cutting section 5 so that the work can be performed.

The dust cover 12 is attached by supporting the rear end side of the dust cover 12 as shown in FIGS.
This is performed by a mounting structure including a pair of left and right support members 14, 14 for supporting the front end side of the book support arm 13 and the dustproof cover 12. That is, the support arm 13
An arm body in which a base 13a made of sheet metal is rotatably connected to one end of a base end 6b of the main frame 6 rotatably connected to the support 9 of the traveling body; A cover support portion 13b made of a pipe material having one end connected to the free end of the arm body. The mounting seats of the connecting members 15 which are fitted to both ends of the cover support portion 13b so as to be rotatable relative to each other are fastened and fixed to the rear surface of the rear end of the dustproof cover 12 by mounting screws. In other words, the shaft core 6a for allowing the mowing unit 5 to swing up and down the support arm 13 with respect to the traveling machine body.
The cutting arm 5 is supported on the main frame 6 so as to swing in the longitudinal direction of the body with respect to both the cutting part 5 and the traveling body around the same axis. The rear end side of the cover support portion 13b is connected to the cover support portion 13b so as to be relatively rotated around an axis 13c of the cover support portion 13b in a lateral direction of the body.

A guide rail 16 extending in the front-rear direction of the machine body is fixed to both lateral sides on the back side of the dustproof cover 12 with mounting screws, so that the shaft core 13 and the dustproof cover 12 are fixed together.
The pair of left and right guide rails 16, 16 swinging around the support arm 13 around c is provided on the dustproof cover 12. Each of the pair of left and right support members 14 and 14 has a roller 17 rotatably inserted into one of the guide grooves of the pair of left and right guide rails 16 and 16 rotatably at the upper end, and the lower end is attached to the lower end. The dustproof plate 11 is formed of a sheet metal member which is fixedly fastened to a support member 18 to which an upper end portion of the dustproof plate 11 is fixed by screws. As a result, the left and right support members 14 and 14 are slidably engaged with the guide rail 16 in the longitudinal direction of the fuselage, and engaged with the guide rail 16 so as to be relatively immovable in the vertical direction of the fuselage. It is fixed to. In other words, the dustproof cover 12 is moved forward and backward above the dustproof plate 11 above the support point supported by the support arm 13, and is pushed up and down by the dustproof plate 11. , A pair of left and right guide rails 16, 16 and the support member 1
It is supported by the dustproof plate 11 via the first and fourth dustproof plates 14 and 14.

As shown in FIGS. 2 and 6, etc., a catcher made of a bent and formed leaf spring material is provided on a support portion 19a provided on a support post 19 fixed to a traveling body so as to support an operation panel and the like of an operation portion. The body 20 is fastened and fixed by mounting screws. The support arm 13 is provided with the shaft core 6a.
When the dust collecting cover 12 is swung around and the dust proof cover 12 is in a closed position covering the dust proof plate 11 above the grain culm transport path and the threshing device 4, the free end side of the arm body of the support arm 13 becomes a catcher. It enters between the support plate portions of the body 20. Then, the catcher body 20 holds the arm body of the support arm 13 between the left and right support plate portions, holds the support arm 13 in the mounting posture so as not to swing easily from this posture, and by this arm holding, The dust cover 12 is held in the closed position. When the support arm 13 is swung forward from the holding state against the holding force exerted by the catcher body 20, the arm body of the support arm 13 comes out of the catcher body 20, so that the support arm by the catcher body 20 is moved. 13 is released.

That is, the support arm 13 is moved in the front-rear direction by operating the operating tool 21 attached to the right rear side of the upper surface on the rear end side of the dustproof cover 12 so that the hand can easily reach from the operating unit. The dust cover 12 swings in the front-rear direction around the shaft core 6a, and the dust cover 12 moves in the front-rear direction above the grain culm conveying path and the dust plate 11 to move between the dust plate 11 and the threshing device 4 as shown in FIG. The closing position is switched to a position for opening between the dust-proof plate 11 and the threshing device 4 as shown in FIG. 5, so that when the mowing operation is performed, the dust-proof cover 12 is set to the closed position and the closed position is set. The dust generated in the mowing part 5 is prevented from flying up by the dustproof plate 11 and the dustproof cover 12. At this time, when the raising and lowering operation of the cutting unit 5 is performed on a headland or the like, the main frame 6 of the cutting unit 5 swings relatively with respect to the support arm 13 so that the support arm 13 is attached to the dustproof cover 12 in the closed position. The dustproof cover 11 is kept stationary and the dustproof cover 11 is pushed up and down by the dustproof cover 11 via the support member 14 and the guide rail 16 while the dustproof cover 12 is being pulled up and down.
The reaping unit 5 moves up and down while entering the space below and below the space 2. When the cutting unit 5 is lowered, even if an opening operation force acts on the dustproof cover 12 due to friction between the support member 14 and the guide rail 16, the dustproof cover 12 holds the closed position by the holding action of the catcher body 20. . Then, when performing the pillow handling, the dustproof cover 12 is switched to the open position, and the gap is opened so that the harvested grain culm can be supplied from between the dustproof plate 11 and the threshing device 4 to the start end of the threshing feed chain 4a. is there.

The catcher body 22 shown in FIGS.
Is supported by a mounting member extending from the frame material of the mowing part 5 and is used for pillow handling or the main frame 6.
The dustproof cover 12 is held at the open position when the mowing part 5 is separated from the traveling machine body by removing the mowing part 5 from the support part 9. That is, when the dust cover 12 is in the open position, the arm body of the support arm 13 enters between the holding plate portions of the catcher body 22, and the catcher body 22 sandwiches the arm body between the left and right holding plate portions. In its mounting position so as not to swing easily from this position.

[Another Embodiment] The catcher body 20,
The support arm 13 can be held in a predetermined mounting posture even when the present invention is implemented using a hook, a lock pin, or the like. Therefore, instead of the catcher body 20, the hook, the lock pin, and the like are collectively referred to as a holding mechanism 20.

[Brief description of the drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is an explanatory view of a closed state of a dustproof cover.

FIG. 3 is a plan view of a dustproof cover.

FIG. 4 is a front view of a mounting structure of a dustproof cover.

FIG. 5 is an explanatory view of an opened state of a dustproof cover.

FIG. 6 is a plan view of a catcher body.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 2 cutting device 3 transport device 4 threshing device 5 cutting unit 6a shaft core 11 dustproof plate 12 dustproof cover 13 support arm 13c shaft core 14 support member 16 guide rail 20 holding mechanism

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Towa Terao 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Works Co., Ltd. (72) Inventor Atsushi Tonari 64 Ishizukitamachi Sakai City, Osaka Prefecture Kubota Corporation Inside Sakai Works (72) Inventor Tamotsu Seiya 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works, Ltd. (72) Inventor Yasuhiko Katayama 64, Ishizu Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works, Ltd. Inventor Yoshihiro Takayama 64 Ishizukita-cho, Sakai-shi, Osaka F-term in Kubota Sakai Works Co., Ltd. (Reference) 2B076 AA03 BC05 CA03

Claims (2)

[Claims] 1. A cutting device comprising a cutting device for cutting a planted grain culm, a conveying device for supplying the cutting grain culm from the cutting device to a threshing device, and a dustproof plate. A combine having a dustproof cover that is connected to the dust proof plate and the threshing device above the grain culm transfer path by the transfer device so as to swing up and down freely; The rear end of the dustproof cover is connected to the free end of the support arm, which is swingably movable in the longitudinal direction of the machine around the same axis as the dynamic axis, so as to be relatively rotatable around the axis of the machine laterally. A guide rail provided in the dustproof cover so as to swing with respect to the support arm about the axis together with the dustproof cover; Phase in direction Moving through a support member which is fixed to the dust-proof plate in a state engaged impossible, it is allowed to support the front-side dustproof plate from the support point by the support arm of the dust cover combine. 2. A holding mechanism for holding the support arm in a mounting position in which the dustproof cover is in a closed position where the dustproof cover covers the upper part of the grain culm conveying path is operably released.
The combine as described in 1.