JP3260121B2 - Reaping device of combine harvester - 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 in which a mowing part is slidably provided in the front of a threshing machine.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Application Laid-Open Nos. 63-145426 and 63-173023,
There has been a technique in which the power of a mowing work system of a mowing unit is used as a driving source of a lateral slide of the mowing unit.

[0003]

In the prior art, power is transmitted from a cutting input shaft to which engine power is transmitted to a sliding shaft that slides left and right integrally with a cutting unit, and a cutting work system is transmitted from the sliding shaft. Since the power of the cutting system and the power of the slide system are taken out, it is necessary to provide a power take-out part to the slide system and a clutch mechanism to cut off the power in the sliding part of the mowing part, and the weight of the sliding part of the mowing part is reduced. There was a problem of getting heavy.

[0004]

Means for Solving the Problems] However, the present invention provides ene
The cutting input shaft to which the gin power is transmitted is supported on the machine
Power to each mowing work member of the mowing section.
Slide the power take-off shaft and
Directly with the slide drive shaft of the slide system transmission path
And the drive take-out shaft and the slide drive shaft are connected separately by driving.
In the reaping device of a combine driven by branch driving,
Install the guide drive shaft at the drive connection with the cutting input shaft.
Via a slide direction switching clutch that can switch between reverse rotation and neutral
To the cutting input shaft, and
Switch the rotation direction of the slide drive shaft with the switch
The ride part is moved left and right, and the non-slidable part of the reaping part can be provided with a power take-out part to the slide system and a clutch mechanism to interrupt the power. Can be performed.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a drive system diagram of the mowing unit, FIG. 2 is an overall side view of the combine, FIG. 3 is a plan view of the combiner, (1) is a track frame on which a traveling crawler (2) is mounted, and (3) is The machine frame (4) is installed on the track frame (1), and the feed chain (5) is stretched to the left to handle the cylinder (6), the processing cylinder (6a), the swing sorter (7), and the kara (8) ), A threshing section (9) is a two-row cutting section including a cutting blade and a grain culm transport mechanism, and (10) is an end of a straw chain (11) connected to an end of a feed chain (5). (12) is an engine that drives each part of the combine, (13) is a paddy tank that faces a fryer (14) and stores grains extracted from the threshing unit (4), (15) Is the driver's seat (16) and the driving operation unit (17)
A cab equipped with a stalk, the stalk is cut by the cutting unit (9),
The harvested culm is configured to be threshed in the threshing unit (4).

As shown in FIGS. 1, 4 and 5, the cutting section (9) includes a right and left raising case having a raising tine (19) for raising an uncut kernel taken through a weeding plate (18). (20), the left and right star wheels (21) and the left and right scraping belts (22) for scraping the stem side and the tip side of the raised grain stem, and a cutting blade for cutting the stem side of the grain stem during scraping. (2
3), star wheel (21) and scraping belt (22)
Cutting work such as a vertical transfer chain (24) and an upper transfer tine (25) that transfer and inherit the culm side and spike side of the two-row grain culm that merges with the scraping side of the feed chain to the feed start end of the feed chain (5) A cutting main frame (26) including a member and projecting obliquely downward and forward from a front of a threshing unit (4) and between a traveling mission (57) fixed to the front end of the machine base (3) and a left traveling crawler (2). The cutting section (9) is supported in front of the threshing machine by a cutting frame (27) provided on the tip side of the cutting main frame (26).

On both sides of the upper end (threshing machine side) of the reaping main frame (26), right and left reaping input cases (28) and (29) are protruded and fixed on the same axis in the lateral direction of the machine. (28) The (29) is rotatably supported by a receiving stand (30) which stands upright at the front end of the machine (3), and the mowing elevates between the cutting main frame (26) and the machine (3). It is configured such that the cylinder (31) is interposed, and the reaping section (9) is raised and lowered with the reaping input cases (28) and (29) as fulcrums.

Further, left and right support pipes (32) and (33) are fixed to the both sides of the lower end of the main cutting frame (26) in parallel with the cutting input cases (28) and (29) on the same axis. A guide frame (34) is integrally connected in parallel with the pipes (32) and (33). The guide frame (34) supports the rear horizontal connecting pipe (27a) of the cutting frame (27) so as to be slidable left and right. An inner cylinder (35), which is a female thread penetrating the cutting main frame (26), is rotatably fitted in the support pipes (32), (33), and a slide frame is a male screw passing through the inner cylinder (35). Both ends of (36) and the rear horizontal connecting pipe (27
Both ends of (a) are integrally connected, and the mowing part (9) is slid left and right by non-rotating left and right sliding of the slide frame (36) by rotation of the inner cylinder (35).

As shown in FIG. 6, the cutting input case (2)
8) At (29), a mowing input shaft (37) penetrating the mowing main frame (26) is interpolated, and pulleys (39) (40) are attached to an output shaft (38) of the engine (12) as shown in FIG. )
And a belt (41) and a threshing clutch (42) to drive and connect the Karamin shaft (43).
The input shaft (48) of the transmission gear case (47) is drivingly connected to the transmission gear case (47) via the pulleys (44) and (45) and the belt (46).
The cutting input shaft (37) is drivingly connected to 9) via pulleys (50) and (51), a belt (52) and a cutting clutch (53).

The output shaft (38) of the engine (12)
Is connected to an input shaft (58) of a traveling transmission (57) via pulleys (54) and (55) and a belt (56), and a drive sprocket (58) of a feed chain (5) is connected to a transmission gear case (47). ) Is provided, and the other parts of the threshing section (4) are provided with an input shaft (4) of a transmission gear case (47).
8) Power is transmitted.

As shown in FIGS. 1 and 6, the engine (1
2) The vertical transfer, which is a power take-out shaft of a mowing work system, via bevel gears (60) and (61) to the left end side of the mowing input shaft (37) where power is input from the mowing input pulley (51) at the right end. While drivingly connecting the left and right rotation support shaft (62),
A bevel gear (63) is attached to the vertical conveyance left and right rotation support shaft (62).
The drive shaft (65) of the vertical transport chain (24) is drivingly connected to the drive sprocket (6) of the vertical transport chain (24).
6) and a sprocket shaft (68) for driving a driving sprocket (67) of the upper transfer tine (25) through the bevel gears (69) and (70) to the vertical transfer vertical rotation support shaft (6).
5) is drive-coupled.

Also, the cutting output shaft (72) is connected to the vertical conveyance vertical rotation support shaft (65) via bevel gears (64) and (71).
And the right output drive shaft (75) is connected to the cutting output shaft (72) via bevel gears (73) and (74).
And a sprocket shaft (77) for driving a driving sprocket (76) of the right raising tine (19) is connected to the right raising driving shaft (7) via bevel gears (78) and (79).
5) is drive-coupled.

A drive shaft (82) for the right star wheel (21) and the right scraping belt (22) is drivingly connected to the right raising drive shaft (75) via bevel gears (80) and (81). Bevel gear (81) on drive shaft (82)
The cutting shaft drive (86) for driving the crank rod (85) for reciprocating the cutting blade (23) is connected to the bevel gear (87) (8) by drivingly connecting the counter shaft (84) via the (83).
8) and drivingly connected to the counter shaft (84).

Further, the slide frame (3) is connected to the cutting blade drive shaft (86) via bevel gears (89) and (90).
6) is driven and connected, and the bevel gears (92) (9) are connected to the counter shaft (91).
The drive shaft (94) of the left raising tine (94) is drivingly connected via 3), and the sprocket shaft (96) for driving the driving sprocket (95) of the left raising tine (19) is connected to the bevel gears (97) (9).
8) and is drivingly connected to the left pulling drive shaft (94).

As shown in FIGS. 1, 5 and 6, at the intermediate portion of the cutting input shaft (37), the cutting unit (9) is slid left and right above the power extraction position of each cutting work member. A sliding direction switching clutch (99) for taking out the power of the engine (12) is provided. The sliding direction switching clutch (99) is rotatably supported on the cutting input shaft (37) and has a fixed claw (100). Left slide bevel gear (101) and right slide bevel gear (102)
And the bevel gears (101) and (102) for each slide.
A clutch wheel (104) provided with a movable claw (103) which is slidably supported on a spline of the cutting input shaft (37) between the cutting input shaft (37) and meshes with a fixed claw (100) of each slide bevel gear (101) (102). ), A shifter (105) that slides the clutch wheel (104) left and right, and a slide bevel gear (106) that always meshes with each slide bevel gear (101) (102). 106) is engaged with the upper end of a slide drive shaft (107) that passes through the reaping main frame (26), and the bevel gear (1) is mounted on the lower end of the slide drive shaft (107).
08) The inner cylinder (35) is drivingly connected via (109), the clutch wheel (104) is slid left or right, and the movable pawl (103) is moved to the left sliding bevel gear (10).
By engaging the fixed claw (100) of 1) or the fixed claw (100) of the bevel gear (102) for right slide,
The rotation direction transmitted to the inner cylinder (35) is switched, and the sliding direction of the reaper (9) is switched left or right.

As shown in FIGS. 8 and 9, the shifter (105) of the sliding direction switching clutch (99) is assembled to a lid plate (110) provided detachably at the upper end opening of the main frame (26). , A slide direction switching lever and a wire (111) (1) disposed in the operation section (17).
12), the operation system of the slide direction switching clutch (99) is integrally assembled and removed in an assembled state.

In the drawing, (113) is a shift shaft rotatably inserted into a boss (114) penetrating and fixed to the cover plate (110), and (115) is a shift shaft (11).
3) a shift fork fixed to the tip of the shift fork to lock the tip end side to the clutch wheel (104); (116) a shift shaft (113) having an intermediate portion engaged with a base end thereof and a wire ( The clutch operating arm (111) is connected to the clutch operating arm (116), and the end (117) of the clutch operating arm (116) is brought into contact with the operating rod (118) integrally connected to the clutch operating arm (116) to hold the clutch operating arm (116) at the neutral position. This is a neutral holding spring.

The present embodiment is constructed as described above, so that the left traveling crawler (2) does not step on the uncut culm.
The mowing part (9) is located at the slide end position on the left side as shown by the solid line in FIG. 5, and performs normal mowing work. At the time of the middle split work, the mowing part (9) is shown by a virtual line in FIG. Slide to the right slide end position so as to prevent the left and right traveling crawlers (2) from stepping on the uncut culm culm, and at the time of ridge cutting work, slide the cutting part (9) to the upper slide end position. The traveling crawler (2) on the ridge side is prevented from climbing on the ridge, and the cutting section (9) is slidably adjusted to the left and right to perform alignment with the uncut kernel row.

FIGS. 10 and 11 show a modification of the sliding direction switching clutch (99) of the mowing part (9). The clutch (119) of FIG. 10 is a left sliding bevel gear (10).
1) The transmission between the clutch wheel (104) and the transmission between the right slide bevel gear (102) and the clutch wheel (104) are provided by friction provided on each slide bevel gear (101) (102) and the clutch wheel (104). The clutch (1) is operated by friction of the plates (120) and (121).
In the case of 19), each bevel gear for slide (101) (1)
02), the sliding speed of the reaper (9) can be adjusted by increasing or decreasing the pressing force of the clutch wheel (104) with respect to the clutch (104). Alternatively, it is possible to prevent an impact (reaction force) from being transmitted to the hand at the time of overload. On the other hand, the clutch (122) shown in FIG. 11 is provided with a sliding friction disk (123) slidably supported on a spline of the cutting input shaft (37), and the sliding friction disk (123) is connected to the slide drive shaft (123). 107) is pressed against the upper surface of a driving friction disk (124) that is engaged with the upper end of the driving friction disk (124), and a spherical neutral concave portion (123) that does not slide the sliding friction disk (123) on the center of the upper surface of the driving friction disk (124). 125), and by sliding the sliding friction disk (123) to the left or right side of the neutral recess (125), the sliding direction of the cutting unit (9) is switched to the left or right. In some cases, the sliding friction disk (12
3) The sliding speed of the cutting unit (9) can be adjusted by moving the cutting unit (9) closer to or away from the neutral recess (125), and the cutting input shaft (37) is directly driven by the friction of the friction disks (123) and (124). Since the power is transmitted between the motor and the slide drive shaft (107), it is possible to prevent an impact from being transmitted to the hand as in the case of the clutch (119), and it is possible to reduce the number of parts and make the device compact.

[0020]

As is apparent from the above embodiment, the present invention provides a cutting input shaft (37) to which the power of the engine (12) is transmitted.
Is supported on the machine base (3) side, and the reaping input shaft (37) is used for reaping.
Power take-out shaft (6) for transmitting power to each mowing work member of section (9)
2) and slide the cutting part (9) to the left or right.
The slide drive shaft (107) of the slide system transmission path to be
The drive take-off shaft (62) is connected directly and separately
Harvester for branch drive of the drive shaft (107)
, The slide drive shaft (107) is connected to a cutting input shaft.
(37) Forward / reverse rotation / neutral switching
Cutting input via the existing slide direction switching clutch (99)
Drive-coupled to the shaft (37), the sliding direction switching clutch
Switching direction of rotation of slide drive shaft (107) by (99)
To move the sliding part of the mowing part (9) left and right.
Those are forms, reaper (9) slide portions PTO unit and power to the slide system can be provided a clutch mechanism (99) intermittently to NOT, reaper a small power as compared with the conventional ( 9) has a remarkable effect that the left and right slide can be performed.

[Brief description of the drawings]

FIG. 1 is a drive system diagram of a mowing unit.

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

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

FIG. 4 is an explanatory side view of the reaper.

FIG. 5 is an explanatory plan view of a reaper.

FIG. 6 is an explanatory sectional view of a reaping input unit.

FIG. 7 is a drive system diagram of a threshing unit.

FIG. 8 is an explanatory side view of an operation unit of the sliding direction switching clutch.

FIG. 9 is an explanatory rear view of an operation unit of the slide direction switching clutch.

FIG. 10 is an explanatory view showing a modification of the sliding direction switching clutch.

FIG. 11 is an explanatory view showing a modification of the sliding direction switching clutch.

[Explanation of symbols]

(9) Cutting unit (12) Engine (37) Cutting input shaft (62) Vertical transport left and right rotation support shaft (power take-out shaft of cutting work system) (107) Slide drive shaft (power take-out shaft of slide system)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 63-145426 (JP, U) Japanese Utility Model 63-173023 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 34/00-69/12

Claims (1)

(57) [Claims] 1. The harvesting to which the power of the engine (12) is transmitted.
The power shaft (37) is supported on the machine base (3) side, and its cutting input shaft (3) is supported.
7), the power transmission to each reaping work member of the reaping section (9).
Move the power take-out shaft (62) and the sliding part of the mowing part (9) to the left and right.
Sliding drive shaft of slide system transmission path to slide
(107) is connected directly and separately to the power take-out shaft
(62) and a converter that branches and drives the slide drive shaft (107)
In the reaper, the slide drive shaft (107)
Reversing to install the drive connecting part with the cutting input shaft (37)
.Via a neutrally switchable sliding direction switching clutch (99)
To the cutting input shaft (37)
Rotation of the slide drive shaft (107) by the change clutch (99)
Move the slide part of the mowing part (9) left and right by switching the direction.
Combine cutting device, characterized in that are configured to so that.