JPH077700Y2 - Combine - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention is equipped with a mowing part in front of the threshing machine which can be raised and lowered freely through a mowing lifting fulcrum shaft and can be opened laterally through a mowing opening fulcrum shaft. The present invention relates to a combine harvester.

"Prior Art" Conventionally, as disclosed in Japanese Utility Model Laid-Open No. 60-68945, there has been a technology in which a mowing unit is installed so as to be able to move up and down and open freely through fulcrum shafts for raising and lowering the mowing and opening the mowing.

[Problems to be solved by the invention] In the prior art, since the mowing opening fulcrum shaft is located rearward with respect to the mowing lifting fulcrum shaft, even if the machine frame front part for mounting the threshing part is moved forward and backward, It was possible to easily attach the mowing opening fulcrum shaft to the cutting part, and to open the threshing part front side largely by horizontally rotating the mowing part, but after moving the threshing part backward, rotate the mowing part horizontally. Therefore, it is necessary to prevent the cutting portion from coming into contact with the front part of the feed chain, and there is a problem that the threshing portion attachment structure cannot be simplified and the cutting portion opening workability cannot be easily performed.

"Means for Solving the Problem" However, the present invention is a combiner equipped with a mowing unit in front of the threshing unit so as to be able to move up and down through a mowing lifting fulcrum shaft and to be freely opened laterally through a mowing open fulcrum shaft. A reaping opening fulcrum shaft is arranged at a rear position of the machine body from the reaping lifting fulcrum shaft, and a feed chain rear end side is horizontally rotatably mounted on a bearing body at a rear side of the threshing section via the fulcrum shaft, and a rear end side. It is characterized in that a feed chain is provided so that the front end side can be freely opened to the outer side of the machine centering on.

[Operation] Therefore, since only the feed chain is horizontally rotated with the front end side being the outer side of the machine with the rear end side as the center, it is easier than the conventional operation that the mowing part is brought into contact with the front end of the feed chain at the time of horizontal rotation. And the structure can be avoided, and the manufacturing cost can be reduced more easily than the conventional structure in which the whole threshing part is retracted, and the horizontal rotation of the feed chain can greatly open the cutting part and at the same time the threshing part side surface is also opened. Therefore, in addition to the maintenance work on the front side of the threshing part, the maintenance work on the side part of the threshing part can be easily performed, improving the maintenance workability and reducing the function of inheriting the cut culm in the front part of the feed chain as compared with the conventional one. It can be easily prevented.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings. First
The drawing is a partial side view of the mowing section, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine, where (1) is a track frame on which a traveling crawler (2) is installed, and (3 ) Is a machine stand installed on the track frame (1), (4)
Is a threshing unit in which the feed chain (5) is stretched to the left side and which incorporates the handling cylinder (6) and the processing cylinder (7), (8) is a mowing unit including a cutting blade, a grain culm transport mechanism, and the like (9 ) Is a straw processing unit that faces the end of the straw chain (10) (11), (12) is a driver's cab including a driver's seat (13) and a driving operation unit (14), (15)
Is an engine part in which the engine (16) is installed, and (17) is a grain tank which is arranged in front of the engine part (15) and stores the grains from the threshing part (4) through the fried cylinder (18) , (19) are upper discharge augers that take out the grains in the grain tank (17) to the outside, and are configured to continuously perform cutting and threshing work.

As shown in FIGS. 4 to 5, the cutting section (8) has a pulling case (5) having pulling tines (21) for raising uncut grain culms which are taken in through the sward plate (20). twenty two)
And a star wheel (23) and a scraping belt (24) for scraping the culm side and the tip side of the raised culm, a cutting blade (25) for cutting the culm side at the time of scraping, and a cutting The right culm carrier chain (26) that conveys the culm side of the two right-sided culms to the left and diagonally backward, and the feed chain (5) that diagonally moves the ears of the two right-sided culms to the tip side of the left. Right tip transfer tine (27) that conveys to the vicinity of the feed start end, and the feed end position of the right culm transport chain (26) behind the culm side and the tip side of the grain culms for 3 and 4 rows from the right side The central culm transport chain (28) and the central tip transport tine (29) to be merged with each other, and the culm side and the tip side of the left one grain culm near the feed end position of the right culm transport chain (26). The left culm transport chain (30) and the left tip transport tine (31) to be merged, and the five merging portions that merge at the feed end of the right culvert transport chain (26). A vertical transport chain (32) that transfers and inherits the culm tip side to the feed start end of the feed chain (5), and a feed end portion of the right tip transport tine (27) and the vertical transport chain (32) that is approximately vertically intermediate The feed chain (5) is provided with an auxiliary transport chain (33) for transferring the grain culms to the feed chain (5) in an appropriate posture, and the cut grain of five rows of grain culm is provided along these Y-shaped transport paths (34). The feed chain (5) is passed through the feed chain for threshing.

As shown in FIGS. 6 to 7, at the front end of the machine base (3), a horizontal frame (35), left and right support pedestals (36a) (36b), left and right columns (37a) (37b), column horizontal pipes ( Left and right bearing bases (39a) (39b) are fixed via the 38), and a fulcrum bearing case (40) for horizontal rotation is fixedly mounted on the left bearing base (39a).
A right fulcrum bearing member (41) for vertical rotation is fixed to the right bearing base (39b). A horizontal rotation fulcrum shaft (43), which is a cutting and opening fulcrum shaft at the lower end of the left fulcrum bearing member (42) for vertical rotation, is fitted and supported in the bearing case (40) so as to be horizontally rotatable, and the fulcrum bearing member is also supported. (41) (42) upper end bearing (41
(a) and (42a) support a vertical rotation fulcrum shaft (45), which is a reaping lifting fulcrum shaft on both the left and right sides of the reaping input case (44), so as to be vertically rotatable. The bearing portions (41a) (42a) include a half bearing body (46) having a semicircular inner peripheral engagement surface (46a) at the upper end of each bearing member (41) (42), and a semicircular bearing body (46). Inner circumference engagement surface (47
The half-split lid (4) that makes a) face-to-face with the engaging surface (46a).
7), the lid body (47) is pivotally attached to the bearing body (46) via the opening / closing fulcrum shaft (48) so as to be openable and closable, and the lid body (47) is closed. ) And the lid (47) to hold the fulcrum shaft (45), the bearing members (41) (4)
The hook (50) that is attached to 2) via the fulcrum shaft (49) is engaged with the lock pin (51) of the lid (47) via the fulcrum crossing spring (52) and the position regulating pin (53), and its position It is configured to hold.

Also, a horizontal cutting output case (55) is connected to the tip of the main cutting frame (54) whose base end is connected to the cutting input case (44), and a piston fixed in the middle of the main cutting frame (54). The mowing lift cylinder (61) is provided between the rod mount (56) and the cylinder mount (58) of the pivot plate (57) fixed to the machine base (3) via the pins (59) (60). And a stopper (62) for restricting the lowest position of the mowing part (8) between the cylinder (61) and the mount (56), and a restriction plate (63) for the stopper (62). Set up.

Further, the rear horizontal frame (64a) of the mowing frame (64) integrally connected to the output case (55) and the machine base (3).
Left and right roll prevention links (65) (66) are provided between the front ends, and the prevention links (65) (66) are two front and rear links (65a) (65b) (66a) (66b). The front and rear links (65a), (65b), (66a), and (66b) are rotatably connected to each other through the shaft (67), and the other ends of the links (65b) and (66b) are formed. The end side is rotatably connected to the machine base (3) through a shaft (68), and the front link (65
a) The lock shaft (69) on the other end side of the (66a) is provided with the fulcrum shaft (72) in the fixed pivotal plate (71) of the lateral frame (64a), the engaging hole (70) and the plate (71). Via a hook (73) pivotally supported through the cover (4) of the right bearing portion (41a).
7) and the hooks (73) of the left and right prevention links (65) (66) are opened, and when the rod pin (59) is extracted, the mowing part (8) is centered on the fulcrum shaft (43) in the left direction of the machine body.
Is configured to be rotated to open it.

As shown in FIG. 9, the front and rear links (65a) (65b)
The shaft (67) connecting (66a) and (66b) is the front link (65a).
One end is fixed to (66a) and the other end is rear link (65b)
The rear link (65b) (66b) is fitted into the fitting hole (74) of the (66b) via the bush (75) and the back link (65b) (66b) is fitted to the shaft (67) via the pad (76) and the bolt (77). 67) It is attached to the outside so that it cannot be pulled out.

Further, as shown in FIG. 10, a rod pin release lever (80) for engaging the engaging elongated hole (79) with the locking pin (78) of the rod pin (59) is attached to the mounting base (56) as a fulcrum shaft. It is mounted via (81), and the cylinder (61) is removed from the mounting base (56) by disengaging the rod pin (59) from the piston rod (61a) by operating the lever (80). It was done.

By the way, as shown in FIG. 8, the upper side wall cover (82) of the threshing part (4) is attached to the sliding rod (8) of the feed chain (5).
3) The upper end of the support chain (84) of the feed chain (5) is attached to the fixed bracket (85) of the threshing main body on the upper and lower fulcrum shafts (86a) (86b) together with the upper end of the feed chain (5).
When the lock lever (87) provided on the front end side of the feed chain (5) is unlocked by supporting the chain (5) horizontally so that the chain (5) is opened to the left side of the threshing part (4). Is provided. In addition, the vertical transfer chain (3
2) and the base end of the transport guide (88) that guides the grain culm when the grain culm is transferred from the auxiliary transport chain (33) to the feed chain (5) extends rearward from the front cutting transaction raising pipe (89). The mounting frame (90) is supported by a fulcrum crossing spring (91) so that it can rise and fall freely, and the transport guide leaf spring (9
2) The base end is attached to the frame (90) so that the guide (88) and the tip of the leaf spring (92) are always in sliding contact with the feed start end working surface of the feed chain (5) while the feed chain (5) ) Is opened so that the sliding contact between the guide (88) and the leaf spring (92) can be released in advance. When the feed chain (5) is opened, the mowing part (8) can be opened to the left side. The front horizontal frame (64b) of the mowing frame (64).
A mowing rotation caster (93) is properly attached to the fulcrum shaft (43) and the caster (9) around the fulcrum shaft (43).
It is configured so that the cutting section (8) can be smoothly opened without interfering with the feed chain (5) and the like by 3).

As is clear from the above, the threshing part (4) can be raised and lowered freely on the front side through the up-and-down rotation fulcrum shaft (45) which is a reaping up-and-down fulcrum shaft.
Also, in a combine equipped with a reaper (8) that can be opened laterally via a horizontal rotation fulcrum shaft (43) which is a mowing opening fulcrum shaft, a horizontal rotation fulcrum shaft is provided from the vertical rotation fulcrum shaft (45). (43) is arranged at the rear position of the fuselage, and the rear end of the feed chain (5) is connected to the fixed bracket (85), which is the bearing body on the rear side of the threshing part (4), via the fulcrum shafts (86a, 86b). A feed chain (5) is provided so that it can be rotated horizontally and the front end side can be opened toward the outer side of the machine centering on the rear end side.

FIG. 11 is an explanatory view showing a drive system, and the engine (1
The output from 6) is transmitted to the transmission case (94) via the counter shaft (95), and the output from the transmission case (94) outputs the belt continuously variable transmission mechanism (96) and the harvesting clutch (97). It is transmitted to the input shaft (44a) of the reaping input case (44) via the reaping input case (44) and drives each drive unit of the reaping unit (8). The driving force of the counter shaft (95) is transmitted to the upper discharge auger (19) via the lower discharge auger (98) in the tank (17). Further, the output from the engine (16) is transmitted to the handling cylinder shaft (6a) via the threshing counter shaft (99), and the threshing counter shaft (99) has the processing cylinder (7) and the second conveyor (100). ) Are linked together. Further, the No. 2 conveyor (100) is linked with the Kara no (102), the No. 1 conveyor (103), the second fan (104), etc. through the belt transmission mechanism (101), and the Kara no (102). Belt continuously variable transmission (105)
The feed chain (5) is interlockingly connected via. Further, a dust suction fan (106), an orthogonal processing cylinder (107), and a straw cutter (9a) of the straw processing unit (9) are interlockingly connected to the belt transmission mechanism (101), while the handling barrel shaft (6a) is connected. The straw chains (10) and (11) are linked to each other.

This embodiment is configured as described above, and when the cutting section (8) is opened, the lid (47) of the right fulcrum bearing member (41) is opened and the hook (73) for the lock shaft (69) is opened. ) Is disengaged, and the rod pin (59) is pulled out to remove the cylinder (61) from the mount (56).
When the piston rod (61a) of is removed, the cutting part (8) can be opened to the left around the fulcrum shaft (43). The cutting part (8) can be opened at about 90 degrees. Since the vertical rotation fulcrum shaft (45) is located forward of the horizontal rotation fulcrum shaft (43) when rotated, cutting is performed outside the vertical line in the front-rear direction centered on the fulcrum shaft (43). Division (8)
With almost all of the parts removed, the space in the front area of the threshing main body can be expanded, which makes it possible to significantly facilitate maintenance and inspection work at these threshing parts (4) and reaping parts (8). is there.

"Effects of the Invention" As is apparent from the above embodiments, the present invention is based on the threshing unit (4).
In a combine equipped with a mowing part (8) on the front side so as to be able to move up and down via a mowing lifting fulcrum shaft (45) and to be opened laterally via a mowing opening fulcrum shaft (43), the mowing elevating fulcrum shaft (45 ), The reaping opening fulcrum shaft (43) is arranged at the rear position of the machine body, and the bearing body (8) at the rear side of the threshing section (4) is
5) The feed chain (5) rear end side is attached to the fulcrum shaft (86a) (86
Feed chain (5), which is attached so that it can be rotated horizontally through b), and the front end side can be opened outward from the machine centering on the rear end side.
Since only the feed chain (5) is horizontally rotated about the rear end side and the front end side is the outer side of the machine, the mowing part (8) at the time of horizontal rotation is located at the front end of the feed chain (5). Abutting can be avoided by a simpler operation and structure than before, and the manufacturing cost can be reduced more easily than the conventional structure in which the entire threshing part (4) is retracted, and the horizontal rotation of the feed chain (5) can be performed. Since the cutting unit (8) can be largely opened by the movement and the side surface of the threshing unit (4) is also opened, the maintenance work on the side of the threshing unit (4) in addition to the maintenance work on the front part of the threshing unit (4). Can also be performed easily, improving the maintenance workability and feeding chain (5) compared to the past.
It is possible to easily prevent deterioration of the cutting grain culm inheritance function in the front part.

[Brief description of drawings]

1 is a partial side view of the mowing section, FIG. 2 is an overall side view of the combine, FIG. 3 is a plan view of the combine, FIG. 4 is a side view of the mowing section, and FIG. 5 is a plan view of the same. FIG. 6 is a front view of the same, FIG. 7 is a partial plan view of the same, FIG. 8 is a side view of a feed chain portion, FIG. 9 is a cross-sectional view of a roll-prevention link portion, and FIG. FIG. 11 is a partial explanatory view of a cylinder portion, FIG. 11 is an explanatory view of a drive system, and FIG. 12 is an explanatory view of a conventional example. (8) …… Mowing section (43) …… Horizontal rotation fulcrum shaft (mowing open fulcrum shaft) (45) …… Vertical rotation fulcrum shaft (mowing lifting fulcrum shaft)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasufumi Ueda, 428 Enami, Okayama City, Okayama Prefecture, Seirei Industry Co., Ltd. (56) References JP-A-60-87715 (JP, A) JP, U)

Claims (1)

[Scope of utility model registration request] 1. A mowing lifting fulcrum shaft (45) on the front side of the threshing section (4).
In a combine equipped with a mowing part (8) that can be lifted up and down via a mowing opening fulcrum shaft (43) and can be opened laterally via a mowing opening fulcrum shaft (43), the mowing open fulcrum shaft (43) is removed from the mowing lift fulcrum shaft (45). Is installed at the rear position of the machine body, and the feed chain (5) rear end side is attached to the bearing body (85) at the rear side of the threshing part (4) so as to be horizontally rotatable via the fulcrum shafts (86a) (86b). A combine chain characterized in that a feed chain (5) is provided so that the front end side can be opened toward the outer side of the machine centering on the rear end side.