JP2791881B2 - 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 for continuously cutting and threshing grain culms.

[0002]

Heretofore, there has been known a combine harvester slide device of this type in which the cut portion is slidably moved in the left-right 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. So that the crawler does not push down uncut kernels by the mud pushed out by the crawler. In order to prevent the right traveling crawler from stepping on the right uncut culm. It is an object of the present invention to safely protect a transmission shaft to a reaping unit by a reaping main frame in the lateral slide device of the reaping unit.

[0003]

According to the present invention, there is provided a stalk raising member and a cutting blade which are connected to a front portion of a traveling machine body via a reaping main frame so as to be able to vertically move and swing about a horizontal axis. The rake main frame is configured to be slidable in the lateral direction relative to the main frame, and a reaping input shaft is arranged on the same axis as the horizontal axis in the left-right direction, and from the reaping input shaft to the raising member and the cutting blade. A cutting power transmission shaft for transmitting power to the cutting frame is attached to the cutting main frame so that it can be extended and retracted, and a cutting power transmission shaft is provided above the main cutting frame. It can be safely and reliably protected.

[0004]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a cross-sectional view of a connecting pipe, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view thereof. In FIG. 1, (1) is a track frame on which a traveling crawler (2) is mounted, and (3) is the aforementioned. A machine stand fixed to the truck frame (1), (4) a threshing unit that stretches the feed chain (5) on the left side and has a built-in handling cylinder (6), and (7) is a vertical member for harvesting work members and grain culms. (8) is a straw processing unit that faces the end of a straw chain (9) connected to the end of the feed chain (5), and (10) is an engine that drives each unit of the combine. , (11) a paddy tank for storing grains taken out from the threshing unit (4) through a fryer cylinder (12),
(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).

As shown in FIG. 1, a cutting output case (46) is attached to the middle part of the left cutting input case (26) so as to be rotatable left and right. A connecting pipe (48) is erected between the reaping work input case (47) incorporated in the middle part of the pipe (38), and the reaping output case (46) follows the left and right movement of the reaping work member.
By rotating the connecting pipe (48) from left to right, the power of each cutting work member is transferred from the cutting input pulley (44) to the left and right cutting input cases (26) and (27), the cutting output case (46), and the connecting pipe ( 48) to transmit to the reaping work input case (47).

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. 7 to 9, the cutting output case (46) has a vertical axis (52), which is a left-right rotation axis of the grain culm vertical conveying member, and a vertical rotation of the grain culm vertical conveying member. A horizontal axis (53), which is an 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). , And the feed end side of the vertical transport chain (22) and the upper transport tine (23) is connected to a driving sprocket (5).
4) A vertical transport drive case (57) is provided to be supported via (55) and the sprocket shaft (56), and the vertical transport drive case (57) is rotated around the horizontal axis (53) of the cutting output case (46). The vertical transfer chain (22) and the feed start end of the upper transfer tine (23) are connected to the right and left cutting input cases (26) and (27) as fulcrums. And vertically follow the left and right movement of the reaping work member, and integrally move the feed start end of the vertical transfer chain (22) and the upper transfer tine (23) to the left and right with the vertical axis (52) as a fulcrum. It is configured to be.

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, during normal operation, the vertical axis (52)
Moves the feed end side of the vertical transport chain (22) in parallel with the grain culm transfer surface (5a) of the feed chain (5) at the feed start end of the feed chain (5). The feed chain (5) is provided at a substantially right angle when viewed from the side, and is configured to maintain a constant height of the grain culm transfer of the vertical transport chain (22) with respect to the grain culm transfer surface (5a) of the feed chain (5).

As shown in FIGS. 9 and 10, 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), which is offset with respect to the left and right reaping input cases (26) and (27), as a fulcrum. Foil (19) and scraping belt (20)
To adjust the handling depth to keep the length of the tip supplied to the handling chamber of the threshing unit (4) substantially constant. 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 feed end side when adjusting the handling depth is larger than that of the vertical transport chain (22) on the vertical rotation axis. Shorten it,
The vertical displacement of the vertical transport chain (22) relative to the grain culm receiving surface (5a) of the feed chain (5) is reduced in height.

As shown in FIG. 7, 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) in 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. 1, 5 and 8, 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). A hexagonal transmission shaft (76) and the vertical transmission shaft (70) are provided.
And an angle of the cutting input shaft (77) provided on the shaft center in the right raising pipe (38) is substantially perpendicular to the cutting operation input shaft (77), and the vertical transmission shaft (7) follows the left and right movement of the cutting operation member.
The bevel gear (72), which is a constant-velocity shaft joint, can be obtained by rotating the transmission shaft (76) right and left around the center (0) without using a universal joint such as a universal joint.
By (71) and (78), the 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, the front and rear of the machine body (3), which is a traveling body, is moved up and down around a reaping input case (26), which is a horizontal axis in the left-right direction, via a reaping main frame (25). The raising case (18), which is a cereal stem raising member, and the cutting blade (21) are freely connected to the cutting main frame (25).
And a cutting input shaft (73) is arranged on the same axis as the cutting input case (26), and the raising input shaft (73) is moved from the cutting input shaft (73). (18) A cutting power transmission shaft (76) for transmitting power to the cutting blade (21) is telescopically and flexibly mounted, and a cutting power transmission shaft (76) is provided above the main cutting frame (25). The mowing transmission shaft (76) for transmitting power to the mowing portion (7) is protected by the mowing main frame (25) safely and reliably.

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 apparent from the above embodiment, the present invention provides a reaper main frame (25) at the front of the traveling body (3).
The stalk raising member (18) and the cutting blade (21), which are connected so as to be able to move up and down and swingably around the horizontal axis (26) in the left-right direction, are laterally slid relative to the cutting main frame (25). The cutting input shaft (73) is arranged on the same axis as the horizontal axis (26), and the raising member (18) and the cutting blade (21) are arranged from the cutting input shaft (73). )
A cutting power transmission shaft (76) for transmitting power to the turret is mounted so as to be able to expand and contract and bend freely, and a cutting power transmission shaft (76) is provided above the cutting main frame (25).
The mowing transmission shaft (76) for transmitting power to the mowing portion (7) can be safely and reliably protected by the mowing main frame (25).

[Brief description of the drawings]

FIG. 1 is a sectional view of a connecting pipe.

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 front sectional view of a cutting input unit.

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

FIG. 9 is a plan view of a rotation fulcrum portion of the grain culm vertical conveying member.

FIG. 10 is a side view of a handling depth adjusting unit.

FIG. 11 is a plan view of a tip guide plate.

FIG. 12 is a front view of the tip guide plate.

[Explanation of symbols]

 (3) Machine base (running body) (18) Raising case (grain stem raising member) (21) Cutting blade (25) Cutting main frame (26) Cutting input case (horizontal horizontal axis) (73) Cutting input shaft ( 76) Mowing transmission shaft

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A 2-142123 (JP, U) JP-A 2-52524 (JP, U) JP-A 62-94732 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) A01D 34/00-34/40 A01D 67/00

Claims (1)

(57) [Claims] 1. A stalk raising member and a cutting blade, which are connected to a front part of a traveling machine body via a cutting main frame so as to be able to move up and down and swingably around a horizontal axis in a horizontal direction, in a direction transverse to the cutting main frame. A cutting input shaft is arranged on the same axis as the left and right horizontal axis, and a cutting transmission shaft for transmitting power from the cutting input shaft to the raising member and the cutting blade. A combine which is mounted so as to be extendable and refractible and has a cutting transmission shaft above the cutting main frame.