JP3133980B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester in which a mowing part is provided in front of a threshing machine so as to be movable vertically and horizontally.

[0002]

Conventionally, the power of the mowing work system is transmitted from the vertical pivot shaft of the mowing section to each mowing work member through a main mowing frame for supporting the mowing section on the vertical pivot shaft section. However, there is a problem that the transmission path of the reaping work system cannot be easily formed because the left and right moving mechanism of the reaping unit is interposed between the reaper main frame and each reaping work member.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a combine for moving a cutting unit up and down and left and right with respect to a threshing machine. A connecting pipe for transmitting the power of the cutting work system is provided on the raising pipe, and the connecting pipe is disposed in substantially the same direction as the conveying direction of the vertical conveying member for conveying the grain stem from the cutting section to the threshing section.

[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 (41) continuously provided in the middle of the left pulling pipe (38), and the cutting blade (21) is fixed to a cutting blade table (42) fixed to a horizontal connecting pipe. The reaping work members are mounted on the left and right reaping input cases (26) (2) by the expansion and contraction operation of the reaping lifting / lowering cylinder (43) mounted between the reaping 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 so as to be integrated therewith. (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 above, the push-pull arm (65), the operation arm (66) and the U
Vertical transport 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 mounted on the cutting section (5). 7) The turning radius of the vertical transport chain (22) on the sending end side when adjusting the handling depth is larger than the rotating radius of the vertical transport chain (22) on the sending end side as compared with the prior art in which the vertical rotating shaft is on the vertical rotating 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). (69) and a pair of bevel gears (71) on a vertical transmission shaft (70), which is a cutting work output shaft provided on the axis of the horizontal transmission shaft (67) 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 shown in FIGS. 11 and 12, a tip guide plate (81) for supporting a tip side of a grain culm transported by a vertical transport chain (22) and an 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.

This embodiment is constructed as described above, and 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.

[0020]

As is apparent from the above embodiment, the present invention relates to a combine for moving the mowing part (7) up and down and left and right with respect to the threshing machine, and the vertical turning shaft (26) of the mowing part (7). A connecting pipe (48) for transmitting the power of the mowing work system is provided on a right raising pipe (38) for erecting and supporting the right raising case (18) from the section, and a grain culm is removed from the cutting section (7) by the threshing section (4). Vertical conveying member (22) for conveying to ()
By arranging the connecting pipe (48) in substantially the same direction as the conveying direction, the transmission path of the mowing work system can be easily configured, and the connecting pipe (48) does not hinder the vertical transfer of the grain stalk. To play.

[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 reaper.

FIG. 6 is a plan view of a reaper.

FIG. 7 is a side view of a rotation fulcrum of a 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 sectional 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]

 (4) Threshing unit (7) Cutting unit (26) Cutting input case (vertical rotation axis) (18) Raising case (22) Vertical transport chain (38) Raising pipe (48) Connecting pipe

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-107119 (JP, A) JP-A-2-52524 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 69/06 A01D 34/28 101 A01D 34/30 A01D 57/22 A01D 67/00

Claims (1)

(57) [Claims] In a combine for moving a cutting unit up and down and left and right with respect to a threshing machine, power of a cutting work system is transmitted from a vertically rotating shaft of the cutting unit to a right raising pipe for standing and supporting a right raising case. And a connecting pipe
A combine having a connecting pipe arranged in substantially the same direction as a conveying direction of a vertical conveying member for conveying a grain culm from a cutting section to a threshing section.