JPH09463U - Combine - Google Patents

Abstract

(57) [Summary] (Correction) [Problem] To significantly expand the adaptive culm length for depth adjustment. SOLUTION: The handling depth adjusting arm 40 rocked by a handling depth motor 37, the handling depth adjusting rod 42 having one end rotatably connected to the tip of the handling depth adjusting arm 40, and the chain guide rail of the grain transfer chain 29. Shaft 4 that connects one end
5 and a joint 46 rotatably attached to the other end of the shaft body 45, and the distal end portion of the handling depth adjusting rod 42 is screwed to the joint 46 at a position deviated from the center of rotation.
While finely adjusting the handling depth adjustment range by changing the connecting length of the handling depth adjusting rod 42 to the joint 46, the joint position with the handling depth adjusting rod 42 is rotated by reversing the joint 46 to rotate the grain transfer chain 29. The handling depth adjustment range is greatly changed to the extremely short culm side and the extremely long culm side by bringing the fulcrum shaft 50 into and out of contact.

Description

[Detailed description of the device]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a combiner having a mowing part and a threshing part, for continuously mowing and threshing grain culms.

[0002]

[Prior art]

 Conventionally, a handling depth adjusting arm and a rod are provided, and the handling depth adjusting rod is connected to the grain transfer chain, and the handling depth adjusting arm is swung to swing and displace the transport chain. There was a technique to make deep adjustments.

[0003]

[Problems to be solved by the device]

 In the above-mentioned prior art, fine adjustment is performed to change the handling depth adjustment range of the transfer chain by moving a limit switch that sets the swinging range of the handling depth adjustment arm and changing the connection length of the handling depth adjustment rod. However, when it is necessary to change the handling depth adjustment range drastically like extremely short culm or extremely long culm, it is not possible to easily set the position of the grain culm transport chain and the short culm or long culm limit is set. There was a problem such as not being able to perform further fine adjustment when set to the position.

[0004]

[Means for Solving the Problems]

 Therefore, the present invention is a combine depth adjustment arm that is swung by a depth control motor and a handling depth adjustment arm that is swung by a depth control motor in a combine for rotating and shifting the grain stalk transfer chain around a fulcrum shaft by a depth control motor. A handle depth adjusting rod whose one end is rotatably connected to the tip of the depth adjusting arm, a shaft body whose one end is connected to the chain guide rail of the grain transfer chain, and a joint which is rotatably attached to the other end of the shaft body are provided. The tip end of the handle depth adjusting rod is screwed to the joint at a position deviated from the center of rotation, and the handle depth adjusting range is finely adjusted by changing the connection length of the handle depth adjusting rod to the joint. By reversing, the connecting position with the handling depth adjustment rod is moved toward and away from the pivot axis of the grain culm transport chain, and the handling depth adjustment range is greatly changed to the extremely short culm side and the extremely long culm side. It is possible to obtain two types of handling depth adjustment ranges, namely, an extremely short culm handling depth adjustment range and an extremely long culling handling depth adjustment range corresponding to culms and extremely long culms, and it is possible to easily change the handling depth adjustment range drastically. However, fine adjustment of the handling depth adjustment range at the change destination can be properly performed, and the adaptive culm length of the handling depth adjustment can be greatly expanded compared to the conventional one.

[0005]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view of a main part, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view thereof. In the figure, (1) is a track frame equipped with a traveling crawler (2), and (3) is the above-mentioned. A machine stand installed on a truck frame (1), a threshing section (4) in which a feed chain (5) is stretched on the left side and a handling cylinder (6) and a processing cylinder (7) are built in, (8) Is a mowing unit equipped with a cutting blade and a grain-carrying mechanism, (9) is a straw chain (10), a straw processing unit that faces the end of (11), (12) is a driver's seat (13) and a front column ( 14a) and a side column (14b), an operation unit, (15) a grain tank for storing the grain from the threshing unit (4) through a lifting barrel (16), and (17) a grain tank The upper discharge auger that takes out the grains in (15) to the outside of the machine, and (18) drives each part of the combine. Engine der is, is configured to perform the cutting, threshing work continuously.

Further, as also shown in FIG. 4, the mowing part (8) has a three-row pull-up having a pull-up tine (20) for standing up an uncut grain culm which is taken in through the grass plate (19). The case (21), the star wheel (22) for scraping the culm side and the tip side of the raised grain stalk and the scraping belt (23), and the cutting blade (cutting the culm side for this scraping ( 24), the right culm root transport chain (25) that conveys the culm side of the right-sided grain culm after cutting to the left diagonally rearward, and the tip side of the rightward one grain culm to the left diagonally rearward. The right tip transport tine (26) that conveys the feed chain (5) toward the feed start end direction, and the culm side and the tip side of the grain stalks for two rows on the left side of the right culm transport chain (25) diagonally to the rear. The left culm transport chain (27) and the right tip transport tine (28) to be joined near the feed end position, and the right A vertical transfer chain (a vertical transfer chain) that transfers and transfers the culm side of three grain culms that join the feed end of the culm transport chain (25) to the feed start end of the feed chain (5). 29) and an auxiliary transport chain which is provided in the feed end portion of the right tip transport tine (26) and the vertical transport chain (29) at a substantially intermediate height above and below the feed terminal end to allow the feed chain (5) to receive the grain stalks in a proper posture. (30), and is configured so that the three harvested grain culms can be taken over by the feed chain (5) via the harvesting and transporting route (31) for threshing treatment.

In addition, a pedestal (33) which is erected and fixed to the front end of the machine base (3) via a column (32) is attached to the reaper main frame (35) via a vertical rotation fulcrum shaft (34). While supporting the base end, a mowing lifting cylinder (36) is provided between the main frame (35) and the track frame (1), and the mowing part (8) is extended and contracted by the cylinder (36). It is configured to raise and lower as appropriate.

Further, as shown in FIGS. 1 and 5 to 7, a cutting depth motor (37), which is a cutting depth adjusting member for displacing the vertical transport chain (29), and a gear case (38) are provided as a cutting main frame. The handle depth adjusting arm (40) is fixed to the middle of the gear (35) via a bracket (39) and is swung by the handle depth motor (37) at the output shaft (41) of the gear case (38). And the handle depth adjusting rod (42) base end is rotatably connected to the tip end of the arm (40) via a support shaft (43) and the chain guide rail (44) of the vertical transfer chain (29). ) Is integrally connected to one end of the shaft body (45), and a quadrangular prismatic joint (46) is rotatably attached to the other end of the shaft body (45), and a rod (42) end of the rod (42) is attached to the joint (46). Insert the nut ( 48) and (49), and the shaft (45) and the rod (42) are connected to each other through a joint (46) so as to cross each other in a substantially cross direction.

In addition, the cutting main frame (35) is supported on the front side of the chain (29) through a swinging fulcrum shaft (50) that also serves as a transmission case for driving the vertical transport chain (29), The handling depth motor (37) is operated by the output of a sensor (not shown) for detecting the length of the cut culm conveyed by the chain (29), and the handling depth adjusting rod (42) is operated by swinging the handling depth adjusting arm (40). ) And the joint (46) swinging the chain (29) rear side around the fulcrum shaft (50), and the tip side of the grain stem supplied to the threshing section (4) by the feed chain (5). It is configured to adjust the handling depth to keep the length substantially constant.

Further, as shown in FIGS. 1 and 7, a joint (46) is rotated around the shaft body (45), and a connecting portion between the handle depth adjusting rod (42) and the joint (46) is connected to the shaft body ( 45) is changed to the front side or the rear side, and the rod (42) and the shaft body (45) are connected through the joint (46) so that the connecting position can be freely changed. When the connecting portion of the rod (42) and the joint (46) is located on the rear side of the body (45) and the distance between the fulcrum shaft (50) is increased, the extremely short culm handling depth adjustment range (A) is used. The chain (29) is rocked to adjust the handling depth, and the connecting portion between the rod (42) and the joint (46) is positioned on the front side of the shaft (45) as shown by the phantom line in the figure to set the fulcrum shaft (50). ), When the distance between Is to adjust the handling depth by swinging the chain (29), and rotating the joint (46) forward or rearward about the shaft (45) to connect it to the rod (42). As a result, the connecting portion between the rod (42) and the joint (46) comes into contact with and separates from the swinging fulcrum (50), which causes a difference (C) between the adjustment ranges (A) and (B), resulting in an extremely short culm state or It is constructed so that work can be performed with either of the two specifications in the extremely long culm.

It should be noted that by moving a limit switch (not shown) for setting the swing range of the handling depth adjusting arm (40) and changing the connection length of the handling depth adjusting rod (42) to the joint (46), Fine adjustment of each of the handling depth adjustment ranges (A) and (B) can be performed in the same manner as the conventional one, and the vertical conveyance chain can be switched to one of the handling depth adjustment ranges without changing the above-mentioned fine adjustment range. The handling depth is adjusted by (29).

Further, as shown in FIGS. 3, 8 and 9, a radiator (51) is provided on the outer side of the engine (18), and a muffler (52) is provided on the upper front part of the engine (18). Air cleaners (53) are installed in the upper rear part of the engine (18), respectively, and the cooling fan (54) takes in outside air from the right side of the engine room (55) as cooling air and passes through the radiator (51). Is discharged from the outer periphery of the engine (18) to the left side and the rear side of the engine room (55), and the threshing clutch lever (56) and the reaping clutch lever (57) are passed through the lever guide grooves (58) (59) to the side. Side projections (60) (61) for projecting cooling air from the radiator (51) downward are provided for projecting to the rear upper surface of the column (14b). 14b) Cooling that is attached to the lower surface and the lower side of the air cleaner (53), and the rear lower surface of the side column (14b) is closed by a horizontal partition plate (62) to pass through the radiator (51) and engine (18). One of the wind direction plates (60) (61) and the horizontal partition plate (62) prevents the wind from blowing from the openings such as the lever guide grooves (58) (59) to the rear side upper surface of the side column (14b) or In addition to blocking by both, before the side column (14b) in which the main and auxiliary transmission levers (63) and (64) are projected through the lever guide grooves (65) and (66), and the clutch levers (56) and (57). ) Is vertically partitioned by a vertical partition plate (67) between the rear part of the side column (14b), and the vertical partition plate (67) is flush with the front plate (68) of the engine room (55). The cooling air that has passed through the radiator (51) and the engine (18) blows out from the openings of the lever guide grooves (65) (66) and the like to the front upper surface of the side collum (14b). It is configured to be blocked by a plate (67).

[0013]

[Effect of the invention]

 As is apparent from the above-described embodiments, the present invention is a combine harvester for adjusting the handling depth of grain culms by rotationally displacing the culm transport chain (29) about the fulcrum shaft (50) by the handling depth motor (37). , A handling depth adjusting arm (40) which is swung by a handling depth motor (37), a handling depth adjusting rod (42) whose one end is rotatably connected to the tip of the handling depth adjusting arm (40), and a grain transfer chain ( 29) is provided with a shaft body (45) having one end connected to the chain guide rail (44) and a joint (46) rotatably attached to the other end of the shaft body (45). 42) The tip portion is screwed to the joint (46) at a position deviating from this rotation center, and the handling depth adjustment range is changed by changing the connection length of the handling depth adjustment rod (42) to the joint (46). Fine adjustment, on the other hand, By reversing the handle (46), the connecting position with the handling depth adjusting rod (42) is brought into contact with and separated from the rotation fulcrum shaft (50) of the grain culm transport chain (29), and the handling depth adjusting range is extremely short. Side and the very long culm side, it is possible to obtain two types of deepness adjustment range, that is, the extremely short culm handling depth adjustment range and the extremely long culm handling depth adjustment range corresponding to the extremely short culm and the extremely long culm. This makes it possible to easily make a drastic change in the handling depth adjustment range and to fine-tune the handling depth adjustment range appropriately at the destination of the change, thus making the adaptive culm length of the handling depth adjustment easier than before. It can be greatly expanded.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a vertical transport chain unit.

FIG. 2 is a side view of the combine.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the reaper.

FIG. 5 is an explanatory diagram of a handling depth adjusting unit.

FIG. 6 is a partially enlarged view of the preceding figure.

FIG. 7 is a perspective view of a joint part.

FIG. 8 is a perspective view of the periphery of an engine unit.

FIG. 9 is a plan view of an engine unit.

[Explanation of symbols]

 (29) Vertical transport chain (grain stalk transport chain) (37) Handling depth motor (40) Handling depth adjusting arm (42) Handling depth adjusting rod (44) Chain guide rail (45) Shaft body (46) Joint (50) Fulcrum axis

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Kazuto Ando 1-32, Chaya-cho, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Utility model registration claims] 1. A combine depth adjusting arm for swinging by a handle depth motor and a handle depth adjustment in a combine for adjusting the handle depth of a grain culm by rotatively displacing a grain culm transport chain about a fulcrum shaft by a handle depth motor. The handle depth adjusting rod whose one end is rotatably connected to the arm tip, the shaft body whose one end is connected to the chain guide rail of the grain transfer chain, and the joint which is rotatably attached to the other end of the shaft body are provided. The tip of the depth adjusting rod is screwed to the joint at a position off this center of rotation, and the handling depth adjusting range is finely adjusted by changing the connecting length of the handling depth adjusting rod to the joint.
By reversing the joint, the connection position with the handling depth adjusting rod is brought into contact with and separated from the rotation fulcrum axis of the grain culm transport chain, and the handling depth adjustment range can be changed significantly to the extremely short culm side and the extremely long culm side. Characteristic combine.