JPH10155342A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a driving operation and a cutting stopping operation, etc., at the time of changing a direction at a field pillow land. SOLUTION: In this combine provided with a cutting elevating and lowering member for elevating and lowering a cutting part and a reel elevating and lowering member 31 for elevating and lowering a reel for raking non-cut grain culms provided in the cutting part, a lift switch 37 for elevating the cutting part to a non-cutting work height and lowering the reel to a position lower than a continuous raking work height through one action under the state of supporting the cutting part at a continuous cutting work height is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mainly ordinary combine which cuts grain raised on a reel with a cutting blade and threshing.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Laid-Open Publication No. 3-18721, a reel is lowered in conjunction with the raising of a cutting unit to prevent stalks from culling at the end of cutting, and in conjunction with the lowering of a cutting unit. There is a technique in which a reel is lifted to restart mowing.

[0003]

In the prior art, the reel is lowered by detecting the raising operation of the reaper, and the reel is raised by detecting the lowering operation of the reaper. An ascending switch for detecting and a descending switch for detecting a descending operation of the reaper, which cannot be easily prevented from being erroneously operated due to a feeling of an operator, and a driving operation when turning in a field headland and There is a problem that simplification such as cutting stop and restart operations cannot be easily achieved.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a continuous harvesting apparatus which includes a cutting elevating member for elevating and lowering a cutting unit, and a reel elevating member for elevating and lowering a reel for picking uncut kernels provided in the cutting unit. With a lift switch that raises the reaping part to the non-cutting work height and lowers the reel to a position lower than the continuous raking work height by one-touch operation under the state where the reaping part is supported at the working height. Since the operation of the end of cutting and prevention of culm spillage of the mowing unit and the reel is performed by the lift switch operation,
Prevents erroneous operation due to operator's misunderstanding when turning on the field headland and allows the reaping unit and reel to shift to the end-of-cutting posture, and simplifies driving operation and cutting stop operation when turning on the field headland Can be easily achieved.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a control circuit diagram of the mowing unit, FIG. 2 is a side view of the whole, and FIG. 3 is a plan view of the same, wherein (1) is a machine base equipped with a traveling crawler (2) on a track frame (3); (4) is a threshing unit equipped with an axial-flow-type screw-type handling cylinder (5) and a sorting mechanism (6) and mounted on the machine base (1), and (7) is through a fryer cylinder (8). Threshing unit (4)
A grain tank for storing grains of the threshing unit (9)
A mowing section mounted to be able to move up and down via a hydraulic cylinder (10) in the lower front of the car, (11) includes a driver's seat (12) and a driving operation section (13), and is provided in front of the grain tank (7). The cab to be fixed, (14) is the grain tank (7)
And an engine room (15) provided inside the engine tank (15), and a grain carrying auger (16) for taking out grains in the grain tank (7).

[0006] The cutting section (9) includes a grain cutting header (17) for incorporating uncut grain stems, and a header (1).
7) Connect the harvested culm to the threshing section (4) by connecting it to the approximate center of the rear part.
(19), which is constituted by a supply chamber (18) which is a feeder house for feeding uncut mushrooms and culms.
And reciprocating drive type first and second cutting blades (20) and (21);
Grain stalk scraping auger (22) and grain stalk forced raising device (23)
Is provided in the grain header (17), and the harvested grain culm taken into the header (17) is sent to the threshing unit (4) via a supply chain conveyor (24) provided in a supply chamber (18) to thresh. It is configured to process.

On the left outside of the threshing unit (4), a second reduction cylinder (25) is provided in a protruding manner, and the second treated product is returned to the threshing unit (4) for re-threshing and re-sorting. It is provided as follows.

As shown in FIG. 4, the cutting section (9) supports the rear end side of the supply chamber (18) to the machine side via a rotation fulcrum shaft (26) so as to be movable up and down. Supply room (1
8) The horizontal fulcrum shaft (2)
8), the base ends of the left and right reel support arms (29) are supported so as to be freely rotatable up and down, and between the left and right outer plates (30) of the auger (22) and the left and right support arms (29) are used to lift and lower the reel. With the hydraulic cylinder (31) interposed, the cylinder (3
It is configured such that the support height position of the reel (19) in the mowing part (9) can be appropriately adjusted by the expansion and contraction operation of 1).

The cutting section (9) includes the reel (1).
9) A potentiometer-type reel height sensor (32) for detecting a change in the support height position from a change in the support angle of the arm (29), and a cutting height of the grain stalk by the cutting blade (20). Potentiometer type cutting height sensor (34) that detects from the vertical displacement of the sled body (33) that touches the surface, and cutting that detects the upper limit position when the cutting unit (9) rises at the base end side of the supply chamber (18). High position switch (35)
Are provided respectively.

As shown in FIGS. 1 and 5, a grip portion (36a) of a traveling speed change lever (36) for shifting the traveling speed is automatically moved up and down in relation to a mowing portion (9) and a reel (19). A lift switch (37) to be operated is provided,
A back switch (38) for detecting a reverse operation of the shift lever (36) is provided at a reverse operation position of the lever (36).

Also, an automatic switch (39) for performing an on / off operation of the automatic lifting control, a cutting switch (40) for performing an on / off operation of the cutting clutch, and a reel lifting / lowering switch (40) for manually lifting and lowering the reel (19). 41) and a cutting up / down switch (4) for manually moving up and down the cutting section (9).
2) (43), a vehicle speed sensor (44) for detecting the traveling speed of the body from the traveling output of the traveling mission case, and a reaping rotation sensor for detecting a change in the rotation speed of a reaping drive shaft for driving the reaping unit (9). (45), as shown in FIG. 6, a potentiometer type reel height setting device (46) for continuously setting a reference reel height serving as a reference value of the reel height sensor (32); A cutting controller (4), which is a cutting control mechanism formed by a microcomputer, comprising a potentiometer-type cutting height setting device (47) for setting a reference cutting height, which is a reference value of the height sensor (34), in a stepless manner.
8) The switches (35), (37), (38), and (3)
9) (40) (41) (42) (43) and each sensor (32) (34) (44) (45) and each setting device (4
6) (47) is input connected.

Further, an automatic lamp (49) for displaying an on operation of the automatic switch (39), a reaping clutch lamp (50) for displaying an on operation of the reaping switch (40) (engagement of the reaping clutch), The lift switch (3
7) Lift control lamp (51) indicating ON operation
And a mowing clutch motor (52) for turning on and off the mowing clutch, and each of the ramps (49) (50) (51)
Is connected to the controller (48) and the clutch on / off circuit (5) is connected to the clutch motor (52).
3) The hydraulic cylinder (10) for raising and lowering the harvesting and raising and lowering circuits (55) and (56), and the hydraulic cylinder (31) for raising and lowering the reels. 57) The controller (48) is connected to the output via the (58) so that the on / off operation of the reaping clutch and the lifting / lowering control of the reaping unit (9) and the reel (19) are performed.

This embodiment is configured as described above, and its operation will be described below with reference to the flowcharts of FIGS.

As shown in FIG. 7, when the cutting section (9) is moved up and down, the cutting height set by the setting device (47) based on the detection of the cutting height sensor (34) is maintained constant. Cutting height control for automatically moving the cutting unit (9) up and down during the cutting operation;
Backup control for automatically raising the cutting unit (9) to a predetermined height when the shift lever (36) is moved backward (when the back switch (38) is turned on), and when the lift switch (37) is turned on. (9) and reel (1)
9) There are four means: lift control for ascending and descending, and manual control for manually elevating and lowering the reaper (9) by the ascending and descending switches (42) and (43). Workability and safety are improved by giving priority to control that can be operated by the operator.

The lift control is performed as shown in the flow chart of FIG. 8, and the start flag is reset (SF =
0), when the lift switch (37) is turned on, the start flag is set (SF = 1),
When the high position switch (35) is turned on (the cutting unit (9) is in the high position), the lowering mode (the cutting unit (9) is lowered and the reel (19) is controlled to return to the target position) is set. ) Is off (the cutting unit (9) is in the lowered state and the cutting height sensor (34) is on or off the ground) and the ascending mode (the cutting unit (9) is raised and the reel (19) is lowered). When the high-position switch (35) is off and the backup control has been performed until immediately before, the control in the descending mode is performed.

In the control of the ascending mode, the ascending target value of the reaper (9) is set at the highest point when the high position switch (35) is turned on, and the descending target value of the reel (19) is set as the maximum as possible to prevent the culm spilling. At the lower point, the lowering mode is a mode in which the lowering target value of the reaper (9) is returned to a lower limit value which can immediately shift to the cutting height control, and the target value of the reel (19) is returned to a predetermined reel height. Set to a set value, between the reel target value and the detected value, the reel (19) raising control when the reel target value> the detected value, and the reel (19) when the reel target value <the detected value
Control of the cutting, and between the cutting target value and the detected value, the cutting control of the cutting unit (9) when the cutting target value <the detected value, and the raising of the cutting unit (9) when the cutting target value> the detected value. Perform control.

The reel target value in the descending mode is
As shown in FIG. 6, the dial (46) of the setting device (46) is used.
Either the dial value set by a) or the stored value that stores the detection value detected by the reel height sensor (32) during the previous harvesting operation (when the cutting height sensor (34) is on the ground). Is used.

As a result of performing such lift control, at the end of the cutting operation in the ascending mode, the culm is sandwiched between the cutting section (9) and the reel (19) to prevent the culm from spilling, while the descent mode is performed. At the beginning of cutting, the cutting section (9) is lowered, and the reel (19) is returned to the return position, so that the process can be promptly shifted to the next step. Efficiency can be improved by reducing the number of operations. In particular, when the previous stored value is used as the reel target value in the descending mode, it is possible to make a good entry with the reel height kept the same as the previous time at the start of cutting in the next process.

During the lift control, when the lift switch (37) is turned on again, the control is performed in the reverse direction in the descending mode in the ascending mode and in the ascending mode in the descending mode. Is performed. That is, every time the lift switch (37) is turned on / off, alternate control of the ascending mode and the descending mode is performed.

As is clear from the above, the hydraulic cylinder (10), which is a mowing elevating member for raising and lowering the mowing portion (9).
And a combine provided with a hydraulic cylinder (31), which is a reel elevating member for raising and lowering a reel (19) for collecting uncut culms, provided in the reaper (9), the reaper (9) having a continuous reaping work height. A lift switch (37) for raising the cutting unit (9) to a non-cutting work height and lowering the reel (19) to a position lower than the continuous scraping work height by a one-touch operation under a supported state; By operating the lift switch (37), the mowing part (9) and the reel (19) are operated to end the mowing and to prevent spilling of the culm, thereby preventing an erroneous operation due to misunderstanding of the operator when turning in the field headland. Then, the mowing part (9) and the reel (19) are shifted to the mowing end posture, so that the driving operation and the mowing stop operation when turning in the field headland can be simplified.

As shown in FIG. 9, when the harvesting rotation sensor (45) detects a rotation speed less than a predetermined value due to an overload of the reaping unit (9) during the automatic reaping operation, the reaping clutch motor (52). The cutting operation stops the mowing drive and stops running at the same time.When the mowing drive is stopped, the automatic raising and lowering control of the mowing unit is also stopped to improve safety.
During these stops, the up / down switches (42) (4)
The manual lifting and lowering control of the reaping unit (9) according to 3) enables control regardless of the drive stop of the reaping unit (9).

FIGS. 10 to 13 show a configuration in which the reel height setting device (46) and the sensor (32) are used to set and detect the height of the reel (19) in multiple steps. Dial (46b) of height setting device (46)
The three-stage cam (59a) for detecting the high / middle / low reel height is provided on the fulcrum shaft (28) of the reel (19) while the dial value of the reel can be changed to three stages of high / middle / low. ) (59
b) (59c) are provided adjacent to each other, and limit switches (60a) (60a) which are reel height sensors (60) for high / medium / low detection operated by these cams (59a) (59b) (59c). When the reel height is set to a high value by the setting device (46) as shown in the flowchart of FIG. In other words, the reel (19) is lowered and raised until the switch (60a) is switched from on to off or from off to on, and the reel (19) is automatically returned to the set high position. Thereafter, the same control is performed when the reel height is set to the medium value or the low value, and the automatic return to the low position or the setting of the reel (19) is performed.

[0023]

As is apparent from the above embodiment, the present invention is directed to a mowing elevating member (10) for raising and lowering the mowing part (9).
And a combiner provided with a reel elevating member (31) for elevating and lowering a reel (19) for scraping uncut culms provided in the reaper (9).
The cutting section (9) is raised to the non-cutting work height by one-touch operation under the state where
9) is provided with a lift switch (37) for lowering to a position lower than the continuous scraping operation height, and the reaper (9) and the reel (1) are operated by operating the lift switch (37).
Since the operations of the end of cutting and the prevention of stalk spilling of 9) are performed, erroneous operation due to operator's misperception is prevented when turning around on the field headland, and the cutting unit (9) and the reel (19) are set in the cutting end posture. The driving operation and the cutting stop operation at the time of turning on the field headland can be easily simplified.

[Brief description of the drawings]

FIG. 1 is an elevation control circuit diagram of a reaper.

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 diagram of a traveling speed change lever.

FIG. 6 is an explanatory diagram of a reel height setting device.

FIG. 7 is a main flowchart.

FIG. 8 is a flowchart of a lift control.

FIG. 9 is a flowchart of a cutting alarm control.

FIG. 10 is an explanatory view showing another modification of the reel height setting device.

FIG. 11 is an explanatory view showing another modification of the reel height sensor.

FIG. 12 is an exploded explanatory view of the same.

FIG. 13 is a flowchart.

[Explanation of symbols]

 (9) Cutting section (10) Hydraulic cylinder (cutting elevating member) (19) Reel (31) Hydraulic cylinder (reel elevating member) (37) Lift switch

Claims (1)

[Claims] 1. A combine harvester comprising a cutting elevating member for elevating and lowering a cutting unit and a reel elevating member for elevating and lowering a reel for uncultivated grain culm provided in the cutting unit, wherein the cutting unit is supported at a continuous cutting work height. A combine switch provided with a lift switch that raises a cutting unit to a non-cutting work height and lowers a reel to a position lower than a continuous scraping work height by a one-touch operation in a state where the cutting device is in a state of being touched.