JP3449786B2 - Combine harvester - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester in which a mowing section slides left and right with respect to a machine on which a threshing section is mounted. 2. Description of the Related Art Conventionally, a mowing portion has been slidably supported at the tip of a mowing connecting pipe extending forward of a machine body, and the mowing portion has been laterally fed by a screw feed by a cylinder or a motor. [0003] Since actuators such as cylinders and motors that slide the mowing portion are inevitably disposed at the lower portion of the mowing portion, there has been damage due to contact with the field scene and adhesion of mud. [0004] It is an object of the present invention to provide a combine harvester that isolates an actuator that slides a cutting unit from a field scene and prevents the actuator from being damaged. The combine harvester according to the present invention is provided with a support case for slidably supporting the reaping portion at the tip of a reaping connection pipe extending forward of the fuselage. A reinforcement member extending in the left-right direction above and below is integrally extended, and an actuator for slidingly operating the cutting unit is arranged inside the reinforcement member. [0006] Therefore, the actuator that slides the mowing part is isolated and protected from the field scene by the support case and its reinforcing member, so that the actuator is prevented from coming into contact with the field scene and adhering mud. It is possible to prevent the actuator from being damaged. An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of a slide portion of the mowing portion, and FIG.
FIG. 3 is a plan view of the combine, and FIG. 3 is a plan view of the combine, in which (1) is a track frame on which the left and right traveling crawlers (2) are mounted, and (3) is a machine installed on the track frame (1). A stand, (4) a threshing unit in which a feed chain (5) is stretched on the left side and a handling drum (6) is installed, (7) is a reaping unit equipped with a grain culm vertical conveying device, and (8) is a straw Processing unit, (9)
Is a driver's cab provided with a driver's seat (10) and a driving operation unit (11), and (12) is a kernel (1) for feeding the kernels from the threshing unit (4).
3) a grain tank for storing the grain, (14) a discharge auger for taking out the grains in the grain tank (12) outside the machine, (1)
Reference numeral 5) denotes an engine for driving each part of the combine, which is configured to continuously perform harvesting and threshing work. As shown also in FIGS. 4 and 5, the cutting section (7)
Is a three-row raising case (18) having a raising tine (17) for raising an uncut culm taken in through a weeding board (16), and a star for scraping the culm base side of the raised cereal culm. A foil (19) and a scraping belt (20), a cutting blade (21) for cutting the stem side at the time of scraping, and a diagonally left side of the stem side and the tip side of the grain stem of one right after cutting. Right culm conveying chain (22) and a pair of upper right and lower right tine conveying tines (23) to be conveyed to the rear, and right culm base obliquely rearward on the culm side and spike side of the two left grain culms after cutting. It has a left culm base transfer chain (24) and a pair of upper and lower right ear tip transfer tines (25) that join near the feed end position of the transfer chain (22), and also joins the feed end of the right culm base transfer chain (22). Do 3
A vertical transport chain (2) that transports and receives the culm side and the tip side of the grain culm to the feed start end of the feed chain (5).
6) and a vertical transport tine (27), and the harvested grain culm of three rows is transported by the right and left culms of the cutting unit (7).
(22) and the feed chain (5) via a Y-shaped grain culm transfer path formed by the right and left spike transfer tines (25) and (23), the vertical transfer chain (26) and the vertical transfer tine (27). It is configured to be threshed. From the front side of the threshing unit (4), a cutting connection pipe (diagonally extending forward and downward) extends between a traveling mission (28) fixed to the front end of the machine base (3) and a left traveling crawler (2). 29). An input case (30) is fixedly mounted on the upper end (traveling body side) of the cutting connection pipe (29), and a vertical fulcrum pipe (31) of the cutting section (7) is provided from the left and right side surfaces of the input case (30). And (32) are protruded and fixed in the lateral direction of the machine body on the same axis. Left and right vertical fulcrum fulcrum pipe (31)
The left and right cradle (3) for vertically fixing the (32) to the machine (3) front end
3) A rotatable support at (34) and a hydraulic cylinder (3) for raising and lowering the reaping between the reaping connecting pipe (29) and the machine base (3).
5) is installed. At the lower end of the cutting connection pipe (29), a central rear surface of a support case (36) is fixed, and a slide connection (37), which is a slide fulcrum of the cutting section (7), is extended forward and backward of the machine body. The end of the pipe (29) is fitted and held slidably and rotatably in the left-right direction of the machine body via a support case (36) via a support case (36). At the left end of the slide pipe (37), a raising case (18), a left transmission case (38) for transmitting power to the left culm base transfer chain (24) and the left ear tip transfer tine (25).
A right transmission case (39) that attaches and transmits power to the cutting blade (21), right culm base transfer chain (22) and right ear tip transfer tine (23) at the right end of the slide pipe (37).
Is installed. There are provided four cutting frames (40) extending parallel to the longitudinal direction of the machine, and the rear ends of the respective cutting frames (40) are integrally connected by a horizontal connecting pipe (41). Are integrally connected to the outer ends of the left and right transmission cases (38) and (39) via a connection frame (42), and the reaper (7) is connected to the vertically rotating fulcrum pipes (31) (3).
2) can be moved up and down around the fulcrum, and the slide pipe (3
7) is attached to the front of the fuselage so that it can slide left and right around the fulcrum. A transmission case (43) for vertical conveyance, which is attached to the input case (30) at the upper end of the cutting connection pipe (29) so as to be rotatable about a vertical axis perpendicular to the vertically pivoting fulcrum pipes (31) and (32). And a drive case (44) for vertical conveyance, which is attached to the transmission case (43) so as to be rotatable about a horizontal axis parallel to the vertically pivoting fulcrum pipes (31) and (32),
The feed case of the vertical transport chain (26) and the vertical transport tine (27) is supported by the drive case (44), and the reaper (7)
The vertical transport chain (26) and the vertical transport tine (27) follow the vertical movement of the vertical transport chain (2).
6) and the vertical transport tines (27) are individually raised and lowered to adjust the handling depth. As shown in FIGS. 4 and 6, the lower part of each raising case (18) is supported by a support pipe (45) integrally connected to the front end of the cutting frame (40). A horizontal transmission pipe (47) is integrally extended from the upper end of the raising transmission pipe (46) standing and fixed to the left transmission case (38) to the right side of the machine body, and the right end side of the horizontal transmission pipe (47) is the rightmost cutting frame ( 40) via a connecting pipe (not shown), and the upper part of each raising case (18) is supported by a chain case (48) provided on the horizontal transmission pipe (47). A cutting upper connecting pipe (49) having one end fixed to the input case (30) and the other end fixed to an intermediate portion of the cutting connecting pipe (29) is provided.
1) The cutting side panel (50) erected in the longitudinal direction of the machine along the left side edge of (1) and the middle part of the cutting upper connecting pipe (49).
A vertical cutting upper rear support shaft which is fixed to the upper surface side, has a lower end pivotally supported on the front side of the cutting upper connecting pipe (49), and has an upper end pivotally supported at an intermediate portion of the cutting side panel (50). 51), and a vertical cutting upper front support shaft (53) is provided at a middle portion of the horizontal transmission pipe (47) via a bracket (52). A rotating frame (54) extending between the front and rear support shafts (53) and (51);
4) A vertical rear bearing pipe (55) fixed to the rear end is rotatably fitted and supported outside the rear support shaft (51).
A vertical front bearing pipe (56) fixed to the front end of the rotating frame (54) is rotatably fitted to and supported by the outside of the front support shaft (53), and the cutting unit (7) is connected to the cutting upper connecting pipe (49). ) And the rotating frame (54), the rotation of the cutting unit (7) about the slide pipe (37) as a fulcrum is restricted by the cutting upper connecting pipe (49) and the rotating frame (54), The rotation frame (54) is configured to rotate in the horizontal direction following the slide of the mowing part (7). As shown in FIG. 1, a cutting input pulley (57) is provided at the end of the right turning fulcrum pipe (32) of the cutting section (7), and power from the engine (15) is supplied by the cutting input pulley (5).
7) The cutting input shaft (5) inside the input case (30) via
8), and power is transmitted from the cutting input shaft (58) to the horizontal transmission shaft (59) inside the slide pipe (37) via the vertical transmission shaft (60) inside the cutting connection pipe (29). The upper end of the vertical transmission shaft (60) is operatively connected to the cutting input shaft (58) by a pair of bevel gears (61) and (62), and the lower end is the cutting connection pipe (29) of the horizontal transmission shaft (59) and the slide pipe (37). Openings (63) provided on the side are linked by a pair of bevel gears (64) and (65). The intermediate portion of the horizontal transmission shaft (59) is rotatably controlled by a bearing (66) extending from the lower end of the cutting connection pipe (29) through the opening (63) into the slide pipe (37). Supported. An opening (63) for engaging the bevel gears (64) and (65) and inserting the bearing (66) is formed as an elongated hole in the axial direction of the slide pipe (37) so as to allow the slide pipe (37) to slide. are doing. The left and right transmission cases (38) and (39) are provided with input shafts (67) and (68) having the same axis as the horizontal transmission shaft (59), and the left and right input shafts (67) and (68) are slide pipes (37). Internally, the shaft is fitted on the lateral transmission shaft (57) to allow sliding, and rotates integrally with the lateral transmission shaft (59). The input shaft (67) of the left transmission case (38) is a pair of bevel gears (69). The output shaft (7) to the raising case (18), the left culm base transfer chain (24) and the right ear tip transfer tine (25) interlockingly connected by (70).
Power is transmitted from the lateral transmission shaft (59) to the input shaft (68) of the right transmission case (39).
2) The output sprocket (7) to the left culm base transfer chain (22) and the left ear tip transfer tine (23) provided on the cutting drive shaft (74) and the input shaft (68) interlockingly connected by (73).
Power is transmitted from the lateral transmission shaft (59) to 5). As shown in FIGS. 7 and 8, the right side of the mounting flange (76) of the cutting connection pipe (29) and the right half of the support case (36) are integrally formed on the central rear side of the support case (36). A pair of ribs (77) and (78), which are reinforcing members for connecting
(78) Put the return hydraulic cylinder (79) between
The cylinder head portion (80) is rotatably connected to the ribs (77) and (78) via the support shaft (81), and the end of the piston rod (82) is supported on the rear surface of the right transmission case (39). (83), the hydraulic cylinder (79) is mounted on the support case (36) and the right transmission case (39) in parallel with the slide pipe (37), and the hydraulic cylinder (79) expands and contracts. Slide pipe (3
7) is slid with respect to the support case (36), and the reaper (7) is slid left and right. Hydraulic pipes (86) (87) connected to the head-side oil port (84) and the rod-side oil port (85) together with the hydraulic cylinder (79) are also housed inside the ribs (77) (78). From the field scene, the hydraulic cylinder (79) and the hydraulic piping (86) (87) are connected to the support case (36) and each rib (7).
7) Isolated by (78), these support cases (76)
And the hydraulic cylinder (7) by the ribs (77) and (78).
9) and the hydraulic piping (86) (87) are protected. As is apparent from the above embodiment, the present invention provides a support case (36) for supporting the cutting section (7) at the tip of the cutting connection pipe (29) extending forward of the fuselage so as to freely slide left and right. ), And reinforcing members (77) (78) extending in the left-right direction above and below the rear surface of the support case (36) are integrally extended, and the mowing part (7) is provided inside the reinforcing members (77) (78).
An actuator (79) that slides the mowing part (7) is isolated from the field scene by the support case (36) and its reinforcing members (77) (78). The protection of the actuator (79) can prevent the actuator (79) from coming into contact with the field scene and adhering mud.
It has a remarkable effect that can prevent damage to
The same effects as those of the actuator (79) can be obtained for the hydraulic piping.

[Brief description of the drawings] FIG. 1 is a plan view of a slide unit of a cutting unit. FIG. 2 is an overall side view of the combine. FIG. 3 is an overall plan view of the combine. FIG. 4 is a side view of the reaper. FIG. 5 is a plan view of a reaper. FIG. 6 is a plan view showing a holding structure of the mowing unit. FIG. 7 is a plan view of a support case. FIG. 8 is a right side view of the support case. [Explanation of symbols] (7) Harvester (29) Cutting connection pipe (36) Support case (77) (78) Rib (reinforcing member) (79) Hydraulic cylinder (actuator)

Continuation of the front page (72) Inventor Kazuo Fukui 428 Enami, Okayama City Inside of the Seirai Industry Co., Ltd. (56) References 4-124036 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 67/00 A01D 34/28 101

Claims (1)

(57) [Claims 1] A support case is provided at a tip of a cutting connection pipe extending forward of a fuselage so as to support a cutting portion so that the cutting portion can slide freely left and right, and reinforcement extending in the horizontal direction up and down on a rear surface of the support case. A combine harvester, wherein a member is integrally extended, and an actuator for slidingly operating a cutting unit is disposed inside the reinforcing member.