JP2607045B2 - Attachment structure of combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting an auxiliary harvesting device of a combine.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG. 3, a general-purpose combiner is provided with a cutting device (b) for cutting uncut kernels in front of a self-propelled machine (a). An auxiliary cutting device (c) for cutting the remaining stalks and stumps of the stalks left behind by the cutting device (b) is attached to the front and back.

The auxiliary reaper (c) has an upper end (d) pivotally supported by the machine (a) of the reaper (b) so as to be vertically rotatable, and a sled provided at a lower end of the reaper (c). (g) is slid on the field scene below the rotation fulcrum of the upper end (d), and the cutting blade (f) provided at the lower end of the device (c) is brought close to the field scene.

[0004]

However, in the above-mentioned auxiliary reaping device (c), the sled (g) is in contact with the field scene below and in front of the upper end pivot point of the device (c). When the cutting blade (f) rushes into the uneven portion of the field scene, the device (c) does not rotate backward, so that when the cutting blade (f) rushes into the soil, an impact or the like occurs. There has been a problem that it is damaged due to the above.

[0005]

According to the present invention, there is provided a mowing device for cutting uncut culms and the like in front of the self-propelled machine, a culm left behind by the reaping device and a stump of the culms and the like. In the combine which is attached with the auxiliary reaping device that cuts the front and back, the auxiliary reaping device is configured such that the upper end portion of the cutting frame formed in a U shape by bending the middle part in a convex shape rearward in a side view. ,
Along with pivoting back to the machine frame of the reaper,
The pivot point is located forward of the cutting blade provided at the lower end of the cutting frame, and the cutting frame is rotated rearward and upward between the bent portion of the cutting frame in the middle and the machine frame of the cutting device. A use state in which a cutting blade provided at a lower end of a cutting frame is provided by the jumping mechanism, and the cutting blade provided at the lower end of the cutting frame is disposed close to a field while maintaining the position of the cutting device. Attaching the auxiliary harvesting device to the combine harvester, wherein the posture can be changed to the storage holding state arranged above, and the constituent members of the machine are not positioned within the rotation locus of the cutting blade of the auxiliary cutting device. It does not provide a structure.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. (A) shown in FIG. 1 is a general-purpose combine,
In the combine (A), a machine base (2) is mounted on a crawler-type left and right traveling part (1) (1), and a threshing device is installed on the left side of the machine base (2).
(3), and the right side equipped with a cockpit (4) with cabin, grain tank (5) and engine (6)
(m), and in front of the machine (m), a cutting device (7) for cutting uncut culms, etc., and culms and stalks of cereal culms left behind by the cutting device (7). And an auxiliary reaping device (8) for reaping the ground.

[0007] The engine (6) is moved to the left and right traveling parts.
(1) (1) The threshing device (3), the mowing device (7), and the auxiliary mowing device (8) are interlocked and connected, and the right and left traveling parts (1) ( 1) and the above devices (3), (7), (8) are configured to operate.

[0008] The mowing device (7) further comprises a platform (10) having a header (9) for taking in uncut kernels and the like.
A transfer chamber (11) for harvesting culms and the like extending from the platform (10) toward the threshing device (3), and is mounted on the machine base (2) so as to be able to move up and down by a hydraulic cylinder (12). I have.

A reciprocating cutter blade (13) is provided at the front of the platform (10), and a scraping drum (14) is disposed behind the cutter blade (13). ) Is supported above and below by a hydraulic cylinder (15) so as to be able to move up and down.

A chain conveyor (17) is provided inside the transfer chamber (11).

[0011] With such a configuration, in the reaping device (7), the stalks and the like are scraped inward by the scraping reel (16), and the cutting blade (13)
The harvested culm can be sent into the transfer chamber (11) by the scraping drum (14) and transported into the threshing device (3) by the chain conveyor (17) in the transfer chamber (11). I can do it.

Further, as shown in FIGS. 1 and 2, the auxiliary cutting device (8) includes a cutting frame (1) shaped like a letter in a side view.
The upper end of (8) is pivotally connected to the side wall (11a) of the transfer chamber (11).
(19) is pivotally supported to be rotatable rearward, a reciprocating drive type cutting blade (20) is provided at a lower end of the frame (18), and the cutting blade (20) is connected to the engine via a transmission mechanism (21). The cutting blade (20) is configured to be able to perform a cutting operation by interlocking connection with (6).

In addition, the pivoting shaft (19) pivotally supporting the auxiliary cutting device (8) to be rotatable rearward is located at a position forward of the cutting blade (20) and rotated rearward. Is located at a position where it does not collide with the machine (m), especially the left and right traveling parts (1) and (1), and the rotation locus of the cutting blade (20) of the device (8) about the support shaft (19) The components of this unit (m) are not located inside (P).

When the auxiliary cutting device (8) is in use, the cutting blade (20) is disposed close to the field scene so that stumps and the like of cereal stalks can be cut, and when the device (8) is stored. The device
(8) is lifted up and rearward to hold the cutting blade (20) higher than the field scene.

Reference numeral (20 ') denotes a sled attached to the lower end of the cutting frame (18). The sled (20') is grounded and holds the cutting blade (20) close to the field scene.

(22) is provided between the side wall (11a) of the transfer chamber (11) and the bent portion of the cutting frame (18), and an auxiliary cutting device is provided.
(8) is a flip-up mechanism that pivots the
(22a) and (22b) are support shafts, and (22c) is a guide slot. By the same mechanism (22), the cutting blade (20) can be brought into a use state in which it is disposed close to the field scene as described above, and the cutting frame (18)
The transfer chamber (1) is lifted by hand, and is appropriately fixed by a fixing means, for example, a tightening and fixing means such as a wing nut screwed onto the support shaft (22b).
By fixing the cutting blade (20) to the side wall (11a) of (1), the cutting blade (20) can be held in the stored state arranged at the rear upper side.

The embodiment of the present invention is configured as described above. According to this embodiment, the following operation and effect are produced.

That is, when cutting the culm by the combine (A), the cutting machine (m) is run, and at the same time, the cutting device (7) and the auxiliary cutting device (8) are operated, so that the cutting is performed. While cutting the uncut grain culm by the device (7), the harvested culm is transported to the threshing unit (3) of the machine (m), while the uncut grain culm and grain are conveyed by the auxiliary cutting device (8). Harvest stumps of culms.

At this time, the cutting blade (20) of the auxiliary cutting device (8)
Since the stalk of the culm is stably cut because it is arranged close to the field scene.

In addition, when the cutting blade (20) rushes into the soil during the work, the cutting blade (20) is made to be able to turn rearward by the reaction of the cutting blade (20). (P) This unit (m)
Because the left and right traveling parts (1) and (1) are not located,
(20) can rotate backward without colliding with the machine (m) to absorb the impact force at the time of entering the soil and prevent the cutting blade (20) from being damaged. .

Further, when the auxiliary cutting device (8) is rotated backward, the cutting blade (20) moves upward so as to move away from the field scene, so that prevention of damage to the cutting blade (20) is ensured. can do.

After the mowing operation is completed, the auxiliary mowing device (8) can be jumped rearward and upward by the jumping mechanism (22), and can be held in the stored state.

In this storage state, the pivoting shaft (19) of the auxiliary reaper (8) is located forward of the cutting blade (20), and there is no contact with the auxiliary reaper (8) above and behind. In addition, the cutting blade (20) can be easily positioned above the field scene, and even when the cutting device (7) supporting the auxiliary cutting device (8) is lowered to the lowest position, Secure the ground clearance of (20) and use the same blade (2
0) Damage due to grounding can be prevented.

[0024]

According to the present invention, the upper end of the auxiliary reaper is pivotally supported on the machine frame of the reaper so as to be pivotable rearward, and the pivot point is located forward of the cutting blade of the auxiliary reaper. In addition, when the cutting blade of the auxiliary cutting device enters into the soil, the reaction device largely rotates rearward due to the reaction, absorbing the impact, and the cutting blade and the like are not damaged.

In addition, a jumping mechanism is provided between the bent portion of the cutting frame in the middle of the cutting frame and the machine frame of the reaping device so as to rotate the cutting frame rearward and upward to jump up. With the cutting blade provided at the lower end of the cutting frame, while maintaining the posture of the mowing device, since the posture can be changed between a use state arranged close to the field and a storage holding state arranged rearward and upward, By simply rotating the mowing frame while maintaining the posture of the mowing device, the posture of the auxiliary mowing device can be easily changed to the stored and held state. Furthermore, since the components of the machine are not positioned within the rotation locus of the cutting blade of the auxiliary cutting device, the auxiliary cutting can be smoothly and quickly performed without the cutting blade colliding with the machine such as a left and right traveling unit. The posture of the device can be changed to the stowed state. Further, since the jumping-up mechanism is interposed between the bent part in the middle of the cutting frame and the machine frame of the cutting device, the jumping-up mechanism can be made compact, and The cutting blade provided at the lower end can be smoothly jumped upward and rearward,
When the harvesting operation is not performed, the cutting blade of the auxiliary cutting device is set in the storage holding state, so that the cutting blade can be reliably collided with another object and damaged. Can be prevented. In addition, since the cutting frame of the auxiliary cutting device is formed in a U-shape by refracting the middle part in a convex shape rearward in a side view, compared with a case where the cutting frame is formed in a straight line in a side view. In addition, the locus of the action point (22a in FIG. 2) of the jumping mechanism when changing the posture of the reaping frame to the storage holding state can be raised from the ground, and the reaping frame can be maintained even when the operator is standing upright. Can be easily rotated, the length of the lifting mechanism (the distance between 22a and 22c in FIG. 2) can be shortened, and the size and weight can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a combine having an auxiliary mowing device mounting structure according to the present invention.

FIG. 2 is an enlarged side view of the main part.

FIG. 3 is an explanatory view of a conventional structure.

[Explanation of symbols]

 (A) Combine (m) Machine (7) Harvester (8) Auxiliary harvester

Claims (1)

(57) [Claims] 1. A cutting device (7) for cutting uncut culms and the like in front of a self-propelled machine (m), and a stalk of culms and cereal culms left uncut by the cutting device (7). Attaching the auxiliary reaper (8) with the front and back to attach the auxiliary reaper (8), the auxiliary reaper (8) is formed into a V-shape by bending the middle part in a convex shape rearward in a side view. A cutting blade (20) provided at the lower end of the cutting frame (18), while pivotally supporting the upper end of the cutting frame (18) to the machine frame of the cutting device (7) so as to be pivotable rearward. ), And between the bent part in the middle of the cutting frame (18) and the machine frame of the cutting device (7), the cutting frame (18) is pivoted rearward and upward to jump up. With the jumping mechanism (22) interposed, the jumping mechanism (22)
The cutting blade (20) provided at the lower end of the frame (18) cutting through, cutting
While maintaining the posture of the harvesting device (7) , the posture can be changed between a use state arranged close to the field and a storage holding state arranged rearward and upward , and the cutting blade of the auxiliary cutting device (8) Within the rotation locus (P) of (20)
And an auxiliary harvesting device mounting structure for a combine, wherein the component members of the machine (m) are not positioned .