JPH1156073A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester, capable of reducing labor of an operator and preventing unreaped stems and culms from rolling in due to defective regulation by installing a narrow guide for regulating only the falling down of the unreaped stems and culms at the front of a mobile machine body and further a mechanism for displacing the narrow guide and a controlling means for operations of the narrow guide. SOLUTION: This combine harvester 1 is obtained by connecting a pretreating part 3 for reaping stems and culms at the front of a mobile machine body 2 equipped with a driver's seat 8, providing a narrow guide 12 for regulating the falling down of unreaped stems and culms on the side of an unreaped land and further displacing the narrow guide 12 between an operating position and a housing position. Furthermore, the combine harvester 1 is equipped with a mechanism for displacing the narrow guide 12 and a controlling means for operations of the narrow guide 12 and can be provided with a narrow guide limit judging means for judging that the narrow guide 12 attains a limit position during operations to displace the narrow guide 12 and a narrow guide limit alarm means for raising an alarm based on the judgment of the means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a combine provided with a narrow guide on the uncut area of a pre-treatment section, which restricts the fall of an uncut stem.

[0002]

2. Description of the Related Art In general, this type of combine includes
On the uncut side of the pre-processing unit connected to the front of the traveling aircraft,
A narrow guide that regulates the fall of the uncut stem to the pre-processing unit side is provided, and the narrow guide is configured to extend outward from the pre-processing unit to the outside, and to be stored along the side of the pre-processing unit. Are configured to be displaceable.

[0003]

By the way, in such a combine, a narrow guide extension operation at the beginning of the operation, a narrow guide extension amount and height adjustment according to the culm length, a narrow guide storage operation at the end of the operation, etc. However, since these operations were performed manually by the operator getting off the fuselage, the operator was not allowed to increase the labor,
It was possible that uncut stems could become involved due to poor regulation.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been made in order to solve these problems. A pre-processing unit is connected to the pre-processing unit, and a narrow guide is provided on the uncut side of the pre-processing unit to control the fall of the uncut stems and stems, and the narrow guide is extended outward from the pre-processing unit. And a narrow guide displacing mechanism for forcibly displacing the narrow guide by a driving force of an actuator, wherein the narrow guide is displaced between an operating position for dispensing and a storage position along a side of the pre-processing unit. Narrow guide operation control means for operating the narrow guide displacement mechanism based on the operation of a narrow guide displacement operation tool disposed near the driver's seat is provided. That is, since the narrow guide displacement operation such as the overhang amount adjustment can be performed while the user is on the aircraft, the operator's labor can be reduced as compared with the conventional case where the operator gets off the aircraft and operates. Without being allowed, it is possible to prevent encroachment of uncut stems and the like due to maladjustment. Further, there are provided a narrow guide limit determining means for determining that the narrow guide has reached the limit position during the narrow guide displacement operation, and a narrow guide limit warning means for issuing an alarm based on the limit determination of the narrow guide limit determining means. It is a thing. That is, it is possible to prevent inconvenience of continuously operating the narrow guide displacement operation tool more than necessary, and to improve operability and the like. Further, a narrow guide position detecting means for detecting a position of the narrow guide and a narrow guide position displaying means for displaying a position of the narrow guide based on a detection signal of the narrow guide position detecting means are provided. That is, even when the narrow guide is not visible, the narrow guide can be displaced to an appropriate position, so that the operability is not allowed to be improved, and it is possible to prevent the encroachment of uncut stems and the like due to improper adjustment. it can. Further, the operation direction of the narrow guide displacement operation tool is made to coincide with the narrow guide displacement direction. In other words, it is not permissible to reduce the possibility that the operation direction of the narrow guide displacement operation tool is mistaken, but it is possible to perform intuitive operation and improve operability.

[0005]

Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a combine, which is a pre-processing unit 3 connected to a front portion of a traveling machine body 2, which is configured to thresh kernels from stems and mowers cut by the pre-processing unit 3, and Threshing unit 4 that sorts, kernel tank 5 that stores the selected kernels, post-processing unit 6 that discharges culms conveyed to the rear of the machine, traveling unit 7 including a pair of left and right crawler traveling devices, driver's seat 8 and an operation unit 9 in which various operation tools are provided. These basic configurations are the same as those of the related art.

The pre-processing unit 3 includes a divider 10 for weeding the stem, a raising device 11 for raising the stem, a cutting blade device (not shown) for cutting the root of the raised stem, and the like. In addition, a narrow guide 12 is provided on the uncut area (left side) of the pre-processing unit 3 to restrict the uncut culm to fall into the pre-processing unit.

At the front end of the narrow guide 12, a U-shaped connecting member (not shown) is provided, while at the rear end, connecting rails 12a are juxtaposed at predetermined intervals. . Then, the connecting member at the front end is slidably connected to the divider frame on the uncut ground side (left and right direction and up and down direction), and the connecting rail 12a at the rear end is projected outward from the body. Although the slide rod 13 is slidably connected to the distal end of the rod 13, the slide rod 13 can move forward and backward in the left-right direction, so that the narrow guide 12 swings in the left-right direction as the slide rod 13 moves forward and backward. It is designed to be displaced. In other words, the narrow guide 12 can protrude outward from the pre-processing unit 3 so as to protrude outward and restrict the falling of the uncut stems, and can be transformed into a storage posture along the side of the pre-processing unit 3. In the working posture, the amount of overhang can be adjusted according to the length of the uncut stem.

Reference numeral 14 denotes an auxiliary narrow guide disposed on the uncut area (left side) of the traveling body 2, and the front end of the auxiliary narrow guide 14 is swingable to the rear end of the narrow guide 12. , While the rear end is inserted and supported on the side of the machine body in a state in which sliding and swinging are allowed.
That is, between the rear end of the narrow guide 12 and the body side,
An auxiliary narrow guide 14 that follows the swinging deformation of the narrow guide 12 is provided to restrict the uncut stem from falling into the machine body.

The slide rod 13 is slidably inserted into a guide tube 16 provided on a front frame 15 of the body, and moves forward and backward along the front frame 15 by the slide guide of the guide tube 16. The distal end of the boss 13 is bent substantially vertically, and a boss tube 13a facing the left and right direction is welded to the distal end. And the boss cylinder 13
a, and a connecting shaft 17 is rotatably assembled into the connecting shaft 1.
Since the connecting rail 12a of the narrow guide 12 is slidably connected and supported by the U-shaped connecting member 17a provided at the distal end of the narrow guide 7, the projecting amount of the narrow guide 12 with the advance / retreat movement of the slide rod 13. Is not allowed to change, and the height of the narrow guide 12 can be changed with the rotation of the slide rod 13 around the axis.

Reference numeral 18 denotes a narrow guide motor (electric motor with a reduction mechanism) mounted on the front frame 15 via a motor bracket 19, and an output gear 18 a of the narrow guide motor 18 meshes with a spur gear 20. However, the base end side of the slide rod 13 is inserted through the boss 20a of the spur gear 20. And a spiral groove 13b formed on the outer peripheral surface on the base end side of the slide rod 13.
And the spiral groove 20b formed on the inner peripheral surface of the boss portion 20a are meshed with each other, and the rotation of the slide rod 13 around the axis is restricted by a guide pin 21 described later. When the spur gear 18 is driven forward and backward, the slide rod 1
3 is forcibly moved forward and backward.

The guide pin 21 projects from the front frame 15 toward the slide rod 13 and fits into a guide groove 13c formed on the outer peripheral surface on the distal end side of the slide rod 13. The guide groove 13c is 13 with respect to the axis (the deviation of both ends of the groove is approximately 18
(Set to 0 °), so that the slide rod 13 is guided to rotate around the axis as the slide rod 13 moves forward and backward. That is, when the slide rod 13 is retracted to the storage-side limit position, the connection shaft 17 is located directly below the slide rod 13.
Although the narrow guide 13 is lowered to the lower limit position, when the slide rod 13 is moved to the projecting side, the connecting shaft 17 rises while drawing an arc, so that the height is substantially proportional to the projecting amount of the slide rod 13. The narrow guide 12 rises.

Reference numerals 22 and 23 denote a storage-side limit switch and a projecting-side limit switch which are attached to the front frame 15 at predetermined intervals, and the limit switches 22 and 23 are provided at the base end of the slide rod 13. By contacting the fixed ring 13d, the storage-side limit position and the extension-side limit position of the slide rod 13 are detected, and the detection signal is input to a control unit 24 described later.

Reference numeral 25 denotes a stroke sensor disposed inside the base end of the slide rod 13. The detection rod 25a of the stroke sensor 25 is always urged by a compression spring 26 in the extension direction. The end of the rod comes into contact with the ring 13c in a resilient manner. That is, the position of the slide rod 13 is detected by causing the detection rod 25a to follow the forward / backward movement of the slide rod 13, and the detection signal is input to the control unit 24.

On the other hand, reference numeral 27 denotes a narrow guide adjustment switch (narrow guide displacement operating tool) provided near the driver's seat 8;
It consists of a position neutral return type lever switch. When the switch lever 27a is tilted to one side, a narrow guide extension operation signal is input to the control unit 24. On the other hand, when the switch lever 27a is tilted to the other side, the control unit 24 Although the narrow guide storing operation signal is input, the operating direction of the switch lever 27a (the left side is the extending operation, the right side is the storing operation) is the operating direction of the narrow guide 12 (the left side is the extending operation, the right side is the storing operation). Operation).

Reference numeral 28 denotes a narrow guide monitor provided near the driver's seat 8. The narrow guide monitor 28 linearly moves a plurality of monitor lamps 28a in the left-right direction (narrow guide displacement direction). The number of monitor lamps 28a is controlled so that they are formed side by side and the number of monitor lamps 28a corresponding to the amount of projection of the narrow guide 12 is turned on. Starting from the ramp 28a, the narrow guide 12
Is set so as to sequentially increase in the left direction (overhang operation direction) with the overhang operation.

The control section 24 is constituted by using a microcomputer, and its input side is provided with the storage-side limit switch 22 and the overhang-side limit switch 2 described above.
3, while the stroke sensor 25, the narrow guide adjusting switch 27, etc. are connected, on the output side, in addition to the narrow guide motor 18 and the narrow guide monitor 28, an existing horn 29 for generating a horn sound, a driver's seat An alarm lamp 30 and the like, which are arranged in the vicinity of 8, are connected. That is, the control unit 24 includes a control program such as “narrow guide control” that drives and controls the narrow guide motor 18 based on an operation signal of the narrow guide adjustment switch 27 and the like. The procedure will be described based on a flowchart.

In the "narrow guide control", first, the detection signal of the stroke sensor 25 is converted into monitor display data (data for determining the monitor lamp 28a to be turned on). When the narrow guide 12 is at the retracted position, all the monitor lamps 28a are turned off. When the narrow guide 12 is at the maximum extended position, all the monitor lamps 28a are turned on. Guide 1
2 is the middle overhang position, the monitor lamp 28a at the position corresponding to the overhang amount is shifted from the rightmost monitor lamp 28a.
To light up.

After executing the monitor display processing, the operation position of the narrow guide adjustment switch 27 is determined, and if the operation position is the OFF position, the drive of the narrow guide motor 18 is stopped. When the operation position is the overhang position or the storage position, the narrow guide motor 18
Is driven in the corresponding direction, and the limit detection signals of the limit switches 22 and 23 corresponding to the driving direction are determined. When the determination is YES, the narrow detection is performed regardless of the operation signal of the narrow guide adjustment switch 27. Although the drive of the guide motor 18 is stopped, when the limit detection signal is determined (switched from OFF to ON), the horn 29 and the alarm lamp 30 are operated to move the narrow guide 12 to the limit position. This is reported to the operator.

In the structure constructed as described above, on the uncut land side of the pre-processing unit 3 connected to the front part of the traveling machine body 2,
A narrow guide 12 for regulating the fall of the uncut stem is provided, and between the action position where the narrow guide 12 projects outward from the pre-processing unit 3 and the storage position along the side of the pre-processing unit 3. However, a narrow guide motor 18 for forcibly displacing the narrow guide 12 is provided, and a narrow guide adjustment switch 27 which is a driving operation tool of the narrow guide motor 18 is connected to the driver seat 8. Since it is arranged in the vicinity, it is possible to perform a narrow guide displacement operation such as an adjustment of the amount of overhang while riding on the body.
Therefore, the operator gets off the aircraft and
As compared with the conventional case where the displacement operation is performed, the labor of the operator is reduced, and the overhang amount of the narrow guide 12 can be appropriately adjusted during the operation according to the culm length and the like. It is also possible to prevent inconveniences such as entrainment of uncut stems based on defects.

The narrow guide adjusting switch 27
When the narrow guide 12 reaches the limit position as a result of the operation described above, an alarm is issued based on the operation of the horn 29 and the alarm lamp 30, so that the operator keeps operating the narrow guide adjustment switch 27 more than necessary. As a result, useless operation can be prevented and operability can be improved.

Further, since a narrow guide monitor 28 for displaying the position of the narrow guide 12 is provided near the driver's seat 8, even if the narrow guide 12 cannot be directly seen, the narrow guide 12 can be properly adjusted. The narrow guide 12
It is not permissible to improve the operability at the time of performing the displacement operation, and it is also possible to prevent uncut stems from being involved due to improper adjustment.

The narrow guide adjusting switch 27
Is set so as to coincide with the direction of displacement of the narrow guide accompanying the operation, so that there is no inconvenience that the operation direction of the narrow guide adjustment switch 27 can be mistaken, and intuitive operation is enabled. Operability can be improved.

It should be noted that the present invention is not limited to the above-described embodiment. For example, the narrow guide monitor 28 may be configured as a narrow guide monitor 31 shown in FIG. That is, the narrow guide monitor 31
Is formed by arranging a plurality of monitor lamps 31a in a curved shape on the uncut area side of the illustrated rear view of the aircraft, and is controlled so that the monitor lamp 31a corresponding to the operating position of the narrow guide 12 is turned on. However, since the arrangement angle of each of the monitor lamps 31a corresponds to the operation angle of the narrow guide 12, there is an advantage that not only the extension amount of the narrow guide 12 but also the operation angle can be displayed.

In the above embodiment, the narrow guide 12 is controlled based on the operation signal of the narrow guide adjustment switch 27.
However, as shown in FIG. 12, it is also possible to control the operation of the narrow guide 12 based on the setting signal of the narrow guide adjustment volume 32. In this case, as shown in FIG. 13, after calculating the target value of the narrow guide position based on the setting signal of the narrow guide adjustment volume 32, the deviation between the target value and the current value (stroke sensor value) ( (Absolute value) is greater than the insensitive value γ, and determines whether to operate or not, and at the time of operation determination, determines the operating direction based on the magnitude comparison between the target value and the current value to determine the narrow guide. Although a drive signal is output to the motor 18, the operation direction of the narrow guide adjustment volume 32 shown in FIG. 13 is set so as to match the narrow guide displacement direction accompanying the operation. The operation angle of the narrow guide adjustment volume 32 (operation range θ1) can be prevented from being inconvenient. Since the setting is made to coincide with the operating angle (operating range θ2), there is an advantage that the operability can be improved or the narrow guide position can be confirmed (confirmed by the volume position) without providing a narrow guide monitor.

[Brief description of the drawings]

FIG. 1 is a plan view of a combine.

FIG. 2 is a plan view of a narrow guide displacement mechanism.

FIG. 3 is a plan view of essential parts of the same, showing a narrow guide extended state (stroke sensor omitted).

FIG. 4 is a plan view of essential parts of the same, showing a state in which the narrow guide is stored (stroke sensor omitted).

FIG. 5 is a side view of a main part of the above.

FIG. 6A is a front view showing a distal end of a slide rod in a stored state, and FIG. 6B is a front view showing a distal end of a slide rod in an extended state.

FIG. 7 is an explanatory diagram showing a relationship between a switch operation direction and a narrow guide operation direction.

FIG. 8 is an explanatory diagram showing a relationship between a narrow guide position and a narrow guide monitor.

FIG. 9 is a block diagram illustrating input and output of a control unit.

FIG. 10 is a flowchart of “narrow guide control”.

FIG. 11 is an explanatory diagram showing another example of the narrow guide monitor and its operation.

FIG. 12 is an explanatory diagram showing a relationship between a narrow guide adjustment volume position and a narrow guide operation position.

FIG. 13 is a flowchart illustrating another example of “narrow guide control”.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling body 3 Preprocessing part 8 Driver's seat 12 Narrow guide 18 Narrow guide motor 22 Storage side limit switch 23 Overhang side limit switch 24 Control part 25 Stroke sensor 27 Narrow guide adjustment switch 28 Narrow guide monitor 29 Horn

Claims (4)

[Claims] 1. A narrow pre-processing unit for cutting a stem and culm connected to a front portion of a traveling body having a driver's seat. A combiner for displacing the narrow guide between an operating position where the narrow guide extends outward from the pre-processing portion and a storage position along a side portion of the pre-processing portion. A narrow guide displacement mechanism for forcibly displacing the narrow guide with a driving force, a narrow guide operation control means for operating the narrow guide displacement mechanism based on an operation of a narrow guide displacement operation tool disposed near a driver's seat; Combine provided. 2. A narrow guide limit determining means for determining that the narrow guide has reached a limit position during a narrow guide displacement operation, and an alarm is issued based on the limit determination of the narrow guide limit determining means. Combine provided with narrow guide limit alarm means. 3. A narrow guide position detecting means for detecting a position of a narrow guide according to claim 1, and a narrow guide position displaying means for displaying a position of the narrow guide based on a detection signal of the narrow guide position detecting means. Combine provided. 4. The combine according to claim 1, wherein the operation direction of the narrow guide displacement operation tool is made to coincide with the narrow guide displacement direction.