JP2000342049A - Reaping device for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the raking in performances of reaped grain culms with a raking in auger in an ordinary type combine harvester. SOLUTION: This reaping device for a combine harvester is obtained by guiding and supporting the tip sides of raking in fingers 48 on the outer periphery of an auger drum 49 of a raking in auger 24 so as to freely advance and retreat and supporting the base end of each finger 48 through a joint member 60 on an eccentric supporting shaft 51 in the auger drum 49 so as to freely face any directions in the reaping device for the combine harvester equipped with the grain culm raking in auger 24 for transversely feeding reaped grain culms to an inlet of a feeder house 21 in the nearly center of a reaping part 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for threshing by feeding the whole amount of cereal stalks cut in a cutting section to a threshing section.

[0002]

Conventionally, a finger support shaft for supporting the base end of a finger is provided at a position offset from the rotation center of the auger drum in the auger drum. The finger tip side advances and retreats with respect to the outer peripheral surface of the drum, and the finger tip when protruding to the drum outer periphery scrapes the harvested grain culm. Normally, the finger is rotated on a plane (two-dimensional) motion trajectory in the front-rear direction without being displaced in the left-right direction about the support shaft, so that when the finger is squeezed, the finger acts directly. Only the right and left widths (diameters) are raked, and other than the left and right widths, the harvested grain culm is not effectively scraped, especially at the outermost part of the auger auger, the harvested grain culm tends to stagnate and causes clogging. Had become.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a combine harvester equipped with a grain stalk scraping auger for feeding the harvested grain stalk to the feeder house entrance substantially at the center of the cutting section. The distal end side of the scraping finger is guided and supported on the outer periphery of the drum so as to be able to advance and retreat, and the base end of the finger is freely supported on the eccentric support shaft in the auger drum via a joint member. When the finger tip moves forward and backward with respect to the surface, the finger tip side can be moved in the left and right direction around the joint member, and the finger is moved in a three-dimensional trajectory to effectively scrape the harvested culm without stagnation. To prevent clogging of the grain stem.

In addition, a finger guide for exposing the distal end of the finger to the outside of the auger drum is offset in the axial direction of the support shaft with respect to the joint member. It is guided to move in the direction, and scrapes the harvested culm well.

Further, the guide portions of the fingers provided on the left and right outermost sides of the auger drum are offset in the outer direction of the machine body with respect to the joint member. At the time of grain stalk raking, the conveying force toward the center of the mowing part also acts on the grain stalk,
It promotes smooth scraping of harvested culm.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 1 is an overall side view of the combine, Fig. 2
FIG. 3 is a plan view of the same, FIG. 3 is a front view of the same, in which (1) is a machine base equipped with a traveling crawler (2) via a track frame (3), and (4) is an axis with respect to the traveling direction of the body. A threshing unit provided with two screw-shaped first and second handling cylinders (5) and (6) and a rocking sorter (7) for orthogonalizing the core, and (8) is above the threshing unit (4) Deploy and fry (9)
A grain tank for storing the grains of the threshing unit (4), which is taken out through the grain tank, (10) is an upper carry-out auger for taking out grains in the grain tank (8), and (11) is provided behind the grain tank (8). Engine room in which the engine (12) is installed.
3) is a driver's seat (14) and a steering handle (15) provided in the driver's cab (16) and arranged above the front of the threshing unit (4), and (17) is a driver's cab (16). ), Left and right worker getting on and off steps provided on both left and right sides, (18) is a hydraulic cutting and lifting cylinder (19) at the lower front of the threshing unit (4)
It is a reaping unit that is equipped so as to be able to ascend and descend via the.

[0007] The cutting section (18) includes a cutting header (20) for taking uncut kernels, and a header (2).
0) Connect the harvested culm to the threshing section (4) by connecting it to the approximate center of the rear part.
And an uncut culm scraping reel (22), a reciprocating drive type cutting blade (23), and a scraping auger (24) are attached to the cutting header (20). The feeder house (21) is provided below the driver's cab (16) and the driver's seat (14) in the center of the driver's cab (16).
A beater on the front left side of the threshing unit (4) via a supply conveyor (25) provided inside the feeder house (21), in which the harvested culm taken into the header (20) is disposed so as to be displaced further to the left. It is configured to be sent to (26) for threshing.

Further, a parallel rectangular pipe-shaped lower frame (27) and upper frame (28) which are laid substantially horizontally in the left-right direction, and right and left side plates (29) for shielding both left and right sides of the scraping auger (24). The cutting header (20) is integrally fixed with the cutting frame (30) to form the cutting header (20), and the front of the feeder house (21) is connected to the rear surface of the cutting header (20) via the docking frame (31). The cutting header (20) and the feeder house (21) are detachably connected to each other, and are detachably connected to each other. The feed input shaft (32) is arranged around the axis of the feed input shaft (32) via the cutting elevating cylinder (19) in front of the feeder house (21). The mowing header (20) is mounted on the feeder house (21) after the mower is mounted on the threshing section (4) so as to be movable up and down. In addition, a weeding board (36) in which a weeding head (34) and a weeding body (35) are integrally fixed via a weeding frame (33) is attached to the side plate (2).
9) It is fixed to the front side, and the up and down weeding board (37) in the front-rear direction on the outside of the body of the left side plate (29) and weeding board (36)
(38), and the left and right lift arms (39) (39) extending in the front-rear direction are rotatably mounted with the uncut culm scraping reel (22) at the front end thereof.
6) While the grain culm is being conveyed by the reel (22) in the direction of the back scraping auger (24), the cutting side of the grain culm stock side (2).
3) Cut and cut the culm and scrape the auger (2)
4) Conveyed to the front part of the feeder house (21) at the rear while being gathered to the central part by 4), and fed the whole amount of the harvested culm to the threshing part (4) by the supply conveyor (25) of the feeder house (21). The grains are collected in a tank (8), and are configured to perform a threshing operation for releasing straw waste.

Further, a hydraulic reel elevating cylinder (41) for raising and lowering a front portion of the lift arm (39) around a reel elevating fulcrum shaft (40) at a rear end, and a base end lower portion attached to an upper frame (28) for tip end operation. A swing arm (42) for rotatably connecting the rear end of the lift arm (39) via a fulcrum shaft (40) to the upper part, and a swing arm (42) connected to the swing arm (42) via a swing frame (43). Electric hydraulic unit (4
4) The hydraulic oscillating cylinder (45) is provided, the height of the reel (22) is adjusted by the lifting / lowering operation of the lift arm (39) controlled by the elevating cylinder (41), and the oscillating arm controlled by the oscillating cylinder (45). (42) The reel (22) is configured to adjust its position in the front-rear direction by turning back and forth.

As shown in FIGS. 5 to 8, the scraping auger (24) includes left and right spirals (46) and (47) for gathering grain stalks cut by a cutting blade from left and right sides in a central direction.
A raking finger (48) for raking the grain stem or sending it to the rear feeder house (21) is integrally fixed to the outer periphery of the drum (49), and the drum (49) right end side lid (50) is driven by a driving sprocket. (51) and a drum rotating shaft (52).
The right side cover (53) is rotatably supported on a support shaft (56) fixed to a bearing plate (55) of a left side plate (29) via a bearing (54), and the output from the engine (12) is drummed. The scraping auger (24) is transmitted to the rotating shaft (52) and is shown in FIG.
It is configured to rotate in the direction of the arrow.

In the drum (49), a rotating shaft (5)
2) The support shaft (57) of the scraping finger (48) is provided at a position offset from the support shaft (56), and the arm is attached to the support shaft (56) fixedly disposed on the left side plate (29) side. The right end of the support shaft (57) is integrally connected via (58), and the support shaft (5) is offset from the drum (49) rotating about the rotation shaft (52) and the support shaft (56).
7) is configured to be held stationary.

The support shaft (57) rotatably supports the base end of each of the scraping fingers (48) and fits as a finger guide for a finger hole (49a) formed in the outer periphery of the drum (49). When the tip of the finger (48) is projected outward of the drum (49) from the mating cap (59) and the drum (49) is rotated, the finger (48) projects forward from the drum (49) as shown in FIG. The finger (48) is configured to rotate in a circular locus (L) such that the length is large and the rearward projection length is small.

Further, the base end of a finger (48a) disposed at the left and right outermost ends of the scraping auger (24) is freely attached to a support shaft (57) via a universal joint (60) as a joint member. A finger hole (49a) for projecting the distal end side of the finger (48a) is formed in the universal joint (6).
The finger (48a) is provided at a position offset by a predetermined dimension (t) outside the center of 0), and the rotation of the drum (49) causes the finger (48a) to protrude from the maximum projecting state to the minimum. The tip is moved laterally by a certain distance (K) toward the center, and the finger (48
a) to perform a three-dimensional motion trajectory to enhance the effect of transporting the grain culm toward the center by the finger (48a), to reduce the stagnation of the grain culm outside the scraping auger (24), It is configured to promote smooth scraping without grain clogging. The universal joint (60) may be used for fingers (48) other than the outermost finger (48a).

As shown in FIGS. 9 to 11, a monitor (63) is provided on a support (62) for supporting a sun visor (61) at the front left side of the driver's seat (14), and a vehicle speed and the scraper (22) are provided. ) Is displayed on the monitor (63) with the reel speed of the traveling mission case (6).
4) a vehicle speed sensor (65) for detecting a vehicle speed, and a reel rotation sensor (69) for detecting rotation of a reel shaft (68) interlockingly connected to an output shaft of a reel transmission mechanism (66) via a chain (67). ), And each of these sensors (6
5) By electrically connecting the (69) to the monitor (63) via the controller (70), the work is performed at a reel speed appropriate for the vehicle speed during the harvesting operation of rice, soybeans, etc. are doing.

Also, a main shift lever (71) for shifting the running speed and a reel shift lever (72) for shifting the speed change mechanism (66) which is the reel speed of the scraping reel (22) are suitable. Nameplates (73) and (7) displaying the shift operation positions of the vehicle speed and the reel speed having a corresponding relationship with the same number.
4), when the levers (71) and (72) are operated to the same number position, the running speed is increased or decreased to a target vehicle speed corresponding to the number position, and the reel speed is adjusted to a reel speed optimal for the target vehicle speed. (22) is configured to control the rotation.

[0016]

As is apparent from the above embodiments, the present invention is provided with a grain stalk scraping auger (24) for feeding the harvested grain stalk laterally to the cutting section (18) and the feeder house (21) entrance substantially in the center. In the combine harvester, the scraping auger (2
4) The tip of the scraping finger (48) is guided and supported on the outer periphery of the auger drum (49) so as to be able to advance and retreat, and the eccentric support shaft (57) in the auger drum (49) is connected to the finger via a joint member (60). Since the base end of the auger drum (48) is supported in a freely directional manner, when the tip of the finger (48) advances and retreats with respect to the outer peripheral surface of the auger drum (49) by rotation of the auger drum (49), the joint member (6) is used.
0) The center of the finger (48) can be moved in the left-right direction around the center, and the finger (48) is moved along a three-dimensional trajectory to effectively scrape the harvested culm without stagnating the grain culm. Can be prevented from clogging.

A finger guide (5) for making the tip side of the finger (48) face the outside of the auger drum (49).
9) is offset in the axial direction of the support shaft (57) with respect to the joint member (60).
During the rotation of 9), the leading end of the finger (48) is moved forward and backward by the guide portion (59) and moved and guided in the left-right direction, so that the harvested grain culm can be scraped well.

Further, since the guide portions (59) of the fingers (48a) provided on the left and right outermost sides of the auger drum (49) are offset to the outside of the machine body with respect to the joint member (60), the stagnation particularly occurs. Easy scraping auger (2
4) At the outermost part, the outermost finger (48a)
When the grain stalk is squeezed, the conveying force toward the center of the mowing part is also applied to the stalk to promote smooth stalking of the stalk.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the combine.

FIG. 3 is an overall front view of the combine.

FIG. 4 is a side view of the reaper.

FIG. 5 is an explanatory plan view of a scraping auger part.

FIG. 6 is a partial cross-sectional explanatory view of a scraping auger.

FIG. 7 is an explanatory view of mounting a finger.

FIG. 8 is an explanatory side view of a scraping auger.

FIG. 9 is a side view of a driving operation unit.

FIG. 10 is an explanatory diagram of a monitor display.

FIG. 11 is an explanatory diagram showing a corresponding operation position of a main shift lever and a reel shift lever.

[Explanation of symbols]

 (18) Cutting part (21) Feeder house (24) Raider auger (48) (48a) Finger (49) Drum (57) Support shaft (59) Cap (guide part) (60) Universal joint (joint member)

Continuing on the front page (72) Inventor Jun Terashima 1-32 Chaya-cho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. Term (reference) 2B081 AA03 BB25 CC01 FB07

Claims (3)

[Claims] 1. A combine harvester having a grain stalk raking auger for feeding a harvested grain stalk laterally to a feeder house entrance substantially in the center of a cutting section. A combine harvester wherein a distal end side is guided and supported, and a base end of a finger is freely supported on an eccentric support shaft in an auger drum via a joint member. 2. A combine harvester according to claim 1, wherein a finger guide portion for directing the distal end side of the finger to the outside of the auger drum is offset in the axial direction of the support shaft with respect to the joint member. 3. A combine harvester, wherein guide portions of fingers provided on the left and right outermost sides of the auger drum are offset to the outside of the machine body with respect to the joint member.