JPH11187748A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the circumferential structure of a transmission part for transmitting the power from a traveling machine body to a reaping part freely slidable in right and left. SOLUTION: This combine harvester has a reaping part for reaping grain culms at the front side of a traveling machine body 3, and a threshing part, loaded on the machine body 3, a transmission member for transmitting the power from the traveling machine body 3 side to the reaping part, supported by the traveling machine body 3 so as to be movable in right and left in the front side. Further, the combine harvester has a driving structure 61 attached on a cylinder member 48 surrounding the transmission member, a linking structure driven by the driving structure 61 and constituted so as to move longitudinally grain-conveying part 22 and 23 for conveying the grain culms reaped by a reaping blade 21 to the threshing part, upper and lower.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for continuously cutting and threshing grain culms.

[0002]

Heretofore, in this type of combine, there has been already known a combine in which a mowing part is slidably moved in the horizontal direction. The purpose of moving the mowing part laterally is to move the mowing part to the left as much as possible (uncut ground side) when turning around with the uncut side left, and to move the crawler between the uncut kernel and the traveling crawler. To increase
Make sure that the mud that the crawler extrudes does not push down uncut culms, and when performing middle splitting work, set the mowing part to the left or right middle position or the right side and position the weeds in front of the right traveling crawler. The right running crawler does not step on the right uncut culm. An object of the present invention is to simplify the peripheral structure of a transmission section from a traveling body to a cutting section in such a horizontal sliding device for a cutting section.

[0003]

SUMMARY OF THE INVENTION In accordance with the present invention, there is provided a reaper in which a cutting section for cutting a culm and a threshing section are mounted on the traveling body in front of the traveling body and supported by the traveling body so as to be movable left and right. A transmission member (76) for transmitting power from the traveling body side to the mowing part is disposed on the front side, and a drive mechanism (61) is provided on a cylindrical member (48) surrounding the transmission member (76). A link mechanism driven by the drive mechanism (61) is formed, and the displacement of the link mechanism vertically moves a grain culm vertical conveying unit that conveys a grain stalk cut by a cutting blade to a threshing unit;
This facilitates simplification of the structure around the transmission unit that transmits power from the traveling machine body to the slidable cutting unit.

[0004]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front sectional view of a reaping input unit, and FIG.
FIG. 3 is a plan view of the combine, and FIG. 3 is a plan view of the combine, wherein (1) is a track frame on which a traveling crawler (2) is mounted, and (3) is a machine stand fixed to the track frame (1). , (4) a threshing unit that stretches the feed chain (5) to the left side and has a built-in handling cylinder (6), (7) is a two-row reaping unit including a reaping work member and a cereal culm vertical transport member, 8) is a straw processing unit facing the end of the straw chain (9) connected to the end of the feed chain (5), (10) is an engine that drives each unit of the combine, and (11) is a fryer cylinder (12). Paddy tank for storing grains taken out from the threshing unit (4) via
(13) is a driver's cab provided with a driver's seat (14) and a driving operation unit (15), and is configured to thresh a grain culm cut by the cutting unit (7) in the threshing unit (4). .

As shown in FIGS. 4 to 6, the cutting section (7) is provided with a right and left raising case (18) having a raising tine (17) for raising an uncut kernel taken through a weeding board (16). ), The left and right star wheels (19) and left and right scraping belts (20) for scraping the stem side and the tip side of the raised grain stem, and a cutting blade (2) for cutting the stem side of the grain stem during scraping.
1) and the like, and the vertical transport for transporting the culm-side and spike-side of the two-row grain culm merging to the scraping side of the left and right star wheels (19) to the starting end of the feed chain (5). It includes a grain culm vertical conveying section such as a chain (22) and an upper conveying tine (23).

[0006] A cutting main frame (which projects obliquely downward and forward from the front of the threshing unit (4) through a space between a traveling mission (24) fixed to the front end of the machine base (3) and a left traveling crawler (2). Left and right reaping input cases (26) and (27), which are vertically rotating shafts of the reaping unit (7) on both sides of the upper end (threshing machine side) of the reaping main frame (25). Are protruded and fixed on the same axis, and the left and right mowing input cases (26) and (27) are rotatably supported by a receiving stand (28) which stands upright at the front end of the machine base (3). Left and right support pipes (29) and (30) are fixed to the lower ends of the frame (25) in parallel with the left and right reaping input cases (26) and (27) on the same axis.
A guide frame (31) for integrally connecting the support pipes (29) and (30) in parallel is provided, and the left and right and the rear lateral connection pipes (33) of the center cutting frame (32) are horizontally connected to the guide frame (31). An inner cylinder (34) which is a female screw which is slidably supported and which is a female screw penetrating through the main cutting frame (25) in the left and right support pipes (29) (30).
Are rotatably fitted, and both ends of the rear horizontal connection pipe (33) are integrally connected to both ends of a slide frame (35), which is a male screw passing through the inner cylinder (34).

[0007] The weeding plate (16) is attached to the tip of each cutting frame (32), and the lower part of the left and right raising case (18) is fixed vertically between the left and right cutting frames (32). Supported by (36),
Left and right raising pipes (38) are erected and fixed to both ends of the slide frame (35) via left and right gear cases (37), and the left and right raising cases (39) at the upper ends of the left and right raising pipes (38). (18) The upper part is supported, and the right star wheel (19) and the scraping belt (2) are supported.
0) is supported by a squeeze drive case (40) incorporated in the middle of the right raising pipe (38), and the left star wheel (19) is
And a left scraping belt (20) is supported by a support arm (11) connected to the middle of the left raising pipe (38), and the cutting blade (21) is attached to a cutting blade stand (42) fixed to a horizontal connection pipe. The mowing work members are connected to the right and left mowing input cases (26) and (2) by expansion and contraction of a mowing lift cylinder (43) interposed between the mowing main frame (25) and the machine base (3).
7) Ascend and descend to the fulcrum, and input case for right reaping (27)
The power of the engine (10) input to the cutting input pulley (44) at the end is transmitted to the drive gear (45) of the inner cylinder (34) through the right cutting input case (27) and the main cutting frame (25). Each cutting work member is configured to be moved left and right by a left and right sliding operation of a slide frame (35) by forward and reverse rotation driving of the inner cylinder (34).

A cutting output case (46) is rotatably mounted on the middle of the left cutting input case (26) so as to be rotatable left and right, and is provided between the cutting output case (46) and the right raising pipe (38). A connecting pipe (48) is erected between the reaping work input case (47) to be incorporated, and the connecting pipe (48) is rotated left and right from the reaping output case (46) following the left and right movement of the reaping work member. The power of each mowing work member is transmitted from the mowing input pulley (44) to the mowing work input case (47) through the left and right mowing input cases (26) and (27), the mowing output case (46), and the connecting pipe (48). It is configured as follows.

The power input to the reaping work input case (47) in the middle of the right raising pipe (38) is transmitted to each reaping work member, and the reaping work input case (47).
The power is distributed and transmitted through the right raising pipe (38) to the right raising drive case (39) and the scraping drive case (40), and the raising tine (17) and the right star wheel (19) of the right raising case (18) are transmitted. ) And the scraping belt (20) are driven, and the left star wheel (19) and the left scraping belt (2) are driven.
0) and the right gear case (3) from the squeeze drive case (40) through the right raising pipe (38).
Power is transmitted to 7), and the power of the cutting blade (21) is extracted from the right gear case (37) via the output shaft (49),
Also, slide frame (3) from right gear case (37).
Power is transmitted to the left gear case (37) through the inside of the left gear case (37), and the left raising pipe (3) is transmitted from the left gear case (37).
8) Power is transmitted to the left raising case (39) through the inside to drive the raising tine (17) of the left raising case (18).

The lower part of the right raising pipe (38) below the squeeze drive case (40) is a horizontal pipe (50).
In addition, it is formed so as to hang down while swinging to the right side of the machine body via the gear case (51) so as not to interfere with the right star wheel (19) and the right scraping belt (20).

As shown in FIGS. 1, 7 and 8, the cutting output case (46) includes a vertical axis (52), which is a left and right rotation axis of the vertical conveying member of the grain culm, and a vertical axis (52) of the vertical conveying member of the grain culm. A horizontal axis (53), which is a vertical rotation axis, is integrally provided substantially at a right angle, and the cutting output case (46) is connected to the left cutting input case (26) through the vertical axis (52). (26a) so as to be rotatable and to support the feed end side of the vertical transport chain (22) and the upper transport tine (23) via driving sprockets (54) and (55) and a sprocket shaft (56). A transport drive case (57) is provided, and the vertical transport drive case (57) is connected to the cutting output case (46).
Rotatably connected to the horizontal shaft (53) of the vertical transport chain (2) so as to follow up and down movement of the mowing work member and integrally with the same.
2) and the feed start end side of the upper transfer tine (23) is moved up and down on the left and right reaping input cases (26) and (27) as a fulcrum, and is moved along with the left and right movement of the reaping work member to be integrated with the vertical transfer chain. (22) and upper transfer tines (2
The feed start end of 3) is configured to be moved right and left around the vertical axis (52) as a fulcrum.

The vertical axis (52) is arranged so that the feed start end of the vertical transport chain (22) and the upper transport tine (23) is moved substantially horizontally to the left and right.
6) It is provided substantially at right angles to the front view with respect to the cutting section (7).
The vertical transfer chain (22) and the upper transfer tine (23) with respect to the scraping position of the cereal stem at the feed start end side are maintained at a constant height.

Further, the vertical axis (52) moves the feed end side of the vertical transport chain (22) parallel to the grain culm receiving surface (5a) at the feed start end of the feed chain (5). The height of the grain culm receiving of the vertical transport chain (22) with respect to the grain culm receiving face (5a) of the feed chain (5) is provided substantially at right angles to the grain culm receiving face (5a) in a side view. Is kept constant.

As shown in FIGS. 9 to 12, one end of a U-shaped pipe (59) is integrally connected to the vertical transport drive case (57) via a bracket (58). At the other end, the vertical transport chain (22) is supported, and at the intermediate portion of the connecting pipe (48), a handling depth adjusting motor (61) is fixed via a bracket (60). A bearing arm (63) for fixing the tip of a screw shaft (62) as a rotating shaft to a connecting pipe (48)
A nut body that is rotatably supported at the tip, extends its screw shaft (62) in a direction substantially perpendicular to the horizontal axis (53) in plan view, and is screwed to the screw shaft (62). 64) is provided with a push-pull arm (65) having one end rotatably connected thereto, and the other end of the push-pull arm (65) is fixed to an intermediate portion of the U-shaped pipe (59). The shaft (62) is rotatably connected to the tip, and the shaft (6) is rotated by rotation of the screw shaft (62).
2) By moving the nut body (64) back and forth, the push-pull arm (65), the operation arm (66) and the U
Vertical conveyance drive case (57) via a character pipe (59)
Of the vertical transport chain (22) and the upper transport tine (23) only by turning the horizontal axis (53) offset from the left and right reaping input cases (26) and (27). Foil (19) and scraping belt (20)
To adjust the handling depth to keep the tip length supplied to the handling chamber of the threshing unit (4) substantially constant. The feed chain ( 5)
Since the feed start end side of the vertical transport chain (22) is moved up and down integrally with the reaping work member, the vertical rotation shaft of the vertical transport member is cut off by the cutting section (5). 7) The turning radius of the vertical transport chain (22) at the feed end side when adjusting the handling depth is larger than that of the vertical transport chain (22) at the feed end side as compared with the conventional method in which the rotation radius is on the vertical rotation axis. Shorten it,
The vertical displacement of the vertical transport chain (22) with respect to the grain culm receiving surface (5a) of the feed chain (5) is reduced in height.

As shown in FIG. 1, a pair of bevel gears (68) are attached to a horizontal transmission shaft (67) provided on the axis of the sprocket shaft (56) of the vertical transport drive case (57) within the horizontal shaft (53). The bevel gear (71), which is interlockingly connected via (69) and whose horizontal transmission shaft (67) coincides with the vertical transmission shaft (70) which is a cutting work output shaft provided on this shaft center within the vertical axis (52). (72), and the longitudinal transmission shaft (70) is provided on the shaft core in the left and right reaping input cases (26) and (27), and the reaping input pulley (44) is pivotally supported at one end. A pair of bevel gears (74) on the input shaft (73)
(75) and are linked so as to drive the vertical transport chain (22) and the upper transport tine (23).

As shown in FIGS. 5 and 7 to 10, the right raising pipe (38) also has a side surface with respect to the grain culm receiving surface (5a) of the feed chain (5), similarly to the longitudinal axis (52). The connecting pipe (48) is provided substantially in parallel with the grain culm receiving surface (5a) of the feed chain (5) in a side view, and is provided on the shaft core in the connecting pipe (48). The hexagonal transmission shaft (76) provided and the vertical transmission shaft (7
0) and the cutting work input shaft (77) provided on this shaft center in the right raising pipe (38) is provided at a substantially right angle in side view, and the vertical transmission shaft follows the lateral movement of the cutting work member. (7
The bevel gears (72) (71), which are constant velocity shaft couplings, are formed by rotating the transmission shaft (76) left and right around the center (0).
By (78), transmission between the vertical transmission shaft (70) and the transmission shaft (76) can be performed.

Further, a support pipe (79) is fixedly protruded from the mowing work input case (47) provided rotatably with respect to the right raising pipe (38), and the support pipe (7) is provided.
9) The output side of the connecting pipe (48) is slidably fitted to the input pipe (48), and the transmission shaft (76) is slid only in this axial direction on the input bevel gear (78) provided in the cutting output case (46). A shaft cover (80), which is freely fitted and allows the input side end of the transmission shaft (76) to be inserted and removed freely, is integrally attached to the reaping output case (46), and linearly moves the reaping work member left and right. The connecting pipe (48) is expanded and contracted at this output side while following the above, while the transmission shaft (76) is expanded and contracted at this input side to adjust the lengths of the connecting pipe (48) and the transmission shaft (76). It is configured as follows.

As is apparent from the above description, a mowing part (7) for cutting grain culm and a threshing part (4) are mounted on the machine base (3) in front of the machine body (3) which is a traveling machine body. A cutting shaft (76), which is a transmission member for transmitting power from the machine frame (3) side to the cutting unit (7), is moved forward by a cutting unit (7) supported on the machine base (3) so as to be movable left and right. The connecting pipe (48), which is a tubular member surrounding the transmission shaft (76), is provided with a handling depth adjusting motor (61) as a driving mechanism, and a link mechanism driven by the motor (61). The vertical transfer chain (2), which is a grain culm vertical conveyance unit that conveys the culm cut by the cutting blade (21) to the threshing unit (4),
2) and the upper transfer tine (23) are moved up and down, so that the peripheral structure of the power transmitting portion that transmits power from the machine body (3), which is the traveling body, to the slidable cutting portion (7) can be simplified. It is configured as follows.

As shown in FIGS. 11 and 12, a tip guide plate (81) for supporting the tip side of the grain culm transported by the vertical transport chain (22) and the upper transport tine (23) is provided, and the guide plate (81) is provided. 81) A bracket (8) is attached to the upper and lower sides of the case (23a) of the upper transport tine (23).
2) While being integrally connected via (83), the upper intermediate portion of the guide plate (81) is integrally connected to the middle of the U-shaped pipe (59) via a bracket (84), and the vertical transport chain (22) The guide plate (81) is moved right and left integrally with the upper transfer tine (23). The handling depth adjusting motor (61) and the screw shaft are provided in a space (85) on the back surface of the guide plate (81). (62) It is configured such that a handling depth adjusting member is disposed.

The present embodiment is constructed as described above, so that the left traveling crawler (2) does not step on uncut kernels.
The mowing part and the vertical conveying part of the mowing part (7) are positioned at the left slide end position to perform normal mowing work. During the middle splitting operation, the mowing part (7) is moved to the right slide end position. Sliding to prevent stepping on the uncut culm by the left and right traveling crawlers (2), and at the time of ridge cutting, sliding the cutting part (7) to the slide end position on the ridge side, so that the traveling crawler on the ridge side ( 2) is prevented from climbing on the ridge, and the cutting section (7) is slid left and right to adjust the uncut culm row.

[0021]

As is clear from the above embodiments, the present invention provides a cutting unit (7) for cutting culm and a threshing unit (4) in front of the traveling machine (3). The mowing part (7) mounted and supported on the traveling body (3) so as to be movable left and right.
A transmission member (76) for transmitting power from the traveling body (3) to the mowing part (7) is disposed on the front side, and a driving mechanism (48) is attached to a cylindrical member (48) surrounding the transmission member (76). 61)
And a link mechanism driven by the drive mechanism (61) is formed.
The culm vertical conveying units (22) and (23) for conveying the culms harvested in 1) to the threshing unit (4) are moved up and down, and the mowing unit (7) that can slide from side to side from the traveling machine body (3). ) Can easily simplify the structure around the transmission portion that transmits power.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a reaping input 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 front view of the reaper.

FIG. 5 is a side view of the cutting unit.

FIG. 6 is a plan view of a mowing unit.

FIG. 7 is a side view of a rotation fulcrum portion of the grain culm vertical conveying member.

FIG. 8 is a plan view of a rotation fulcrum portion of the grain culm vertical conveying member.

FIG. 9 is a side view of a handling depth adjusting unit.

FIG. 10 is a plan view of a connecting pipe.

FIG. 11 is a plan view of a U-shaped pipe.

FIG. 12 is a front view of a U-shaped pipe.

[Explanation of symbols]

 (3) Machine base (running body) (4) Threshing unit (18) Raising case (Grain culm raising member) (21) Cutting blade (22) Vertical transport chain (Grain culm vertical transport unit) (23) Upper transport tine ( (48) Connecting pipe (tube member) (61) Motor (drive mechanism) (76) Transmission shaft (transmission member)

Claims (1)

[Claims] 1. A mowing section for cutting a grain stalk in front of a traveling machine body, and a mowing section having a threshing section mounted on the traveling machine body and supported by the traveling machine so as to be movable left and right, from the traveling machine body side to the mowing section. A transmission member (76) for transmitting power is disposed on the front side, and a driving mechanism (61) is provided on a cylindrical member (48) surrounding the transmission member (76), and the driving member (61) is driven by the driving mechanism (61). A vertical linking mechanism for transporting a grain stalk cut by a cutting blade to a threshing unit.