JPH08140459A - Grass divider in combine harvester - Google Patents

Abstract

PURPOSE: To provide a grass divider in a combine harvester having a narrow guide laid along the transverse side direction of the combine harvester and capable of easily conducting the adjustment of the projected amount of the narrow guide in the transverse direction of the machine frame from an operating part. CONSTITUTION: This grass divider in a combine harvester is provided with a setting device 28 setting the amount of projection of a narrow guide 11, a detecting device detecting the adjusting amount of a narrow guide driving device 14 and a controlling device controlling the movement of the narrow guide driving device 14. The controlling device controls so as to make the narrow guide 11 attain the prescribed amount of projection by actuating the narrow guide driving device 14 positively or negatively based on the values of the setting device and the detecting device so as to make the both values agree with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine weeding device for avoiding a problem that grain culms on the uncut side lean on each part of the machine body to cause shedding, etc., particularly from the rear part of the grass body. The present invention relates to an improvement of a weeding device in which the amount of extension of a narrow guide extending along the lateral side of an airframe can be adjusted from a control section.

[0002]

2. Description of the Related Art A narrow guide extending from a rear part of a grass body along a lateral side of an airframe is provided in order to avoid a problem that grain culms on the uncut side are leaning against various parts of the airframe to cause shedding and the like. However, if the narrow guide sticks out from the side surface of the machine during non-mowing work such as turning the machine or traveling on the road, for example, the narrow guide may come into contact with concrete ridges and damage. Or, there is a problem of deformation. Therefore, generally, the narrow guide is movably provided in an operating position which projects laterally of the machine body and a non-operating position in which the narrow guide is accommodated on the machine body side. Also, the length of the planted culm in the field is the variety,
Depending on the weather and growing conditions, for example, if the culm is long culm, the ears are likely to lean on each part of the airframe, and if the culm is short, it is less. When the narrow guide is extended to the lateral side of the machine during mowing work, the degree of leaning against the machine differs depending on the size of the culm, and also the degree of lodging of the grain culm, etc. If the amount of overhang in the direction is uniformly set to the predetermined amount, it may unnecessarily push the uncut culm to the side and cause it to lie down. The grain culm is shattered. In addition, if the culm is long, the amount of extrusion to the side of the machine is insufficient, and there is a problem that the particles are still wound around each part of the machine to cause shedding and the like. Therefore, the narrow guide is conventionally provided so that the lateral extension of the body can be adjusted. Since the narrow guide described above is provided on the side of the cutting unit, it is not efficient for the operator to step down from the control unit and perform adjustment work to adjust the amount of overhang / storage or the amount of overhang. Absent. Therefore, a proposal has been made, for example, in Japanese Utility Model Application Laid-Open No. 5-67229 to allow those control operations to be remotely controlled from the control section.

[0003]

As described above, in the narrow guide, the operator needs to adjust the amount of overhang to the optimum position depending on the culm length, the degree of lodging of the grain culm, etc. Being able to operate remotely is advantageous for efficient work. However, a conventionally known narrow guide remote control device moves a narrow guide that is once in a storage position to a projecting position when a harvesting operation is started, for example, when moving between fields or when turning a machine. When doing this, it is necessary to perform remote operation while looking at the narrow guide one by one, or while checking the amount of overhang on the display, and the work of adjusting the amount of overhang is troublesome and the amount of overhang of the narrow guide must be determined. There is a problem that wasteful time will be wasted during the start of mowing.

[0004]

According to the present invention, a narrow guide is provided extending from the rear part of a grass body along the lateral side of the machine body, and the amount of extension of the narrow guide in the machine body lateral direction is driven by a narrow guide. A combine weeding device that is adjustable by a device, wherein the weeding device is a setting device that sets the amount of overhang of the narrow guide, a detector that detects the adjustment amount of the narrow guide drive device, and a narrow guide drive device. The control device controls the operation of the device, and the control device sets the narrow guide by operating the narrow guide drive device in the normal and reverse directions so that the values of the two may match based on the setter and the detector. The problem described above is solved by adopting a configuration in which the amount of overhang is controlled. In addition, the present invention employs a configuration in which the above-mentioned control device operates the narrow guide drive device to one side based on the detection of the non-mowing work state, and controls the narrow guide to the storage position, whereby the operator The purpose is to prevent the narrow guide from being damaged or deformed by automatically placing the narrow guide in the stowed position when turning the aircraft or performing non-mowing work such as traveling on the road without bothering . Further, according to the present invention, the control device described above is configured to control the operation of the narrow guide drive device so that the values of both of them may match when the automatic switch is turned on, and when the automatic switch is turned off. By adopting a configuration in which the narrow guide drive device is actuated to one side to control the narrow guide to the storage position, it is possible to move the narrow guide to the storage position by turning off the automatic switch. The purpose is to do.

[0005]

If the amount of overhang of the narrow guide is set in advance by the setting device according to the culm length or the degree of lodging of the grain culm, even when the narrow guide is in the storage position, for example,
The narrow guide is automatically adjusted to the set overhang position. Further, during the mowing work, the narrow guide can be arbitrarily adjusted to the optimum overhanging position by operating the setting device. Also, if the control device is configured so that the narrow guide is set to the storage position based on the detection of the non-mowing work state, the narrow guide is automatically set to the storage position when the aircraft is turning or traveling on the road, and the operator's hand does not. The narrow guide is stored without bothering you. Then, if the control device is configured to move the narrow guide to the storage position by turning off the automatic switch, the narrow guide can be stored similarly.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. 2 and 3 are a perspective view of the combine 1 and a front view showing a part of the left side of the machine body. The combine 1 is provided with left and right crawler traveling devices 2 and 2.
The upper machine stand is provided with a pretreatment unit 3 and a thresher 4, which are vertically movable by a hydraulic cylinder, and a control unit 5, a grain tank 6 and the like on the other side. Then, the pretreatment unit 3 has a succulent body 7 ...
And a raising device 8 ..., a cutting blade device and a scraping device, which are not shown, and a feed chain 9 of the threshing machine 4 which is provided with a handling body 10 with a handling depth adjustment for lifting and transporting grain culms, A narrow guide 11 extending from the rear of the grass body 7 along the lateral side of the machine body is provided on the left side of the machine body on the uncut side of the pretreatment unit 3. As shown in detail in FIG. 1, the narrow guide 11 is inserted into the main rod 11a, which is composed of a pipe that abuts against the uncut grain culm and keeps it away from the fuselage side, and the tip of the main rod 11a. The hook 11b is movable back and forth, and the mounting rod 11c is fixed to an intermediate portion of the main rod 11a. The hook body 11b provided at the front portion of the narrow guide 11 is rotatably engaged with the hole of the bracket 12a which stands up from the support rod 12 to which the grass body 7 is attached. A pretreatment frame 13 composed of a pipe to which a blade device or the like is attached is fitted in the front end of the pretreatment frame 13 so as to be movable back and forth.

The base of the mounting rod 11c provided in the middle of the narrow guide 11 projects from the motor 14 constituting the narrow guide driving device mounted on the pretreatment frame 13 and the reduction gear case 15 for reducing the rotation of the motor 14. It is attached to the drive shaft 16 via a bracket 17, and the motor 14
When it is reversely rotated, the narrow guide 11 is vertically rotated about the drive shaft 16, and when the narrow guide 11 is rotated to the most raised position, the narrow guide 11 is in the non-operating position where the narrow guide 11 is housed in the fuselage side. When they are separated from each other, the uncut grain culm is in an operation position to move away from the fuselage side. Further, when the narrow guide 11 is rotated to the operating position, the amount of extension of the narrow guide 11 in the lateral direction of the machine becomes larger as it is rotated downward, for example, in the case of a long culm and a fall culm, the narrow guide 11 Increasing the amount of overhang to prevent uncut grain culms from leaning toward the machine side, and these uncut grain culms come into contact with the carrier 10, etc., or cause shedding due to contact. To eliminate. On the other hand, if the grain culms are short culms or have not fallen down, if the narrow guides 11 are greatly extended in the lateral direction, there is a problem that the narrow guides 11 push them down or the grains shed. So in that case, narrow guide 11
Is rotated upward to adjust the amount of lateral extension of the machine body. In the figure, 18 is the bracket 12a described above.
A hydraulic cylinder mounted between the pretreatment frame 13 and the pretreatment frame 13, and when the pretreatment unit 3 descends from the raised position and begins to mow the culm, the hydraulic cylinder 18 is pre-extended to retreat the grass body 7 normally. If it is made to project forward from the position, the tip of the grass body 7 can be seen well from the control section 5 when the felled grain culm is started to be trimmed, and alignment with the grain culm row becomes easy. Further, the hydraulic cylinder 18 performs a reduction operation after waiting for a time corresponding to a predetermined alignment time after the pretreatment section 3 is lowered, and during the subsequent mowing, turning of the machine, or traveling on the road, etc. The grass body 7 is held in the retracted position. Therefore, there is no inconvenience that the grass bodies 7 protruding forward come into contact with obstacles.

FIG. 4 is a perspective view of the control unit 5. The control unit 5 has a seat 20 at the rear and a front operation column 21 at the front with the step 19 interposed therebetween. The front operation column 21 has a multi-lever 22, an instrument 23 and various switches.
24 is provided, and the multi-lever 22 moves the pretreatment section 3 up and down by operating the machine in the front-back direction, and cuts off the power transmission to the crawler traveling device 2 on that side by operating the machine in the left-right direction. Alternatively, brake and control the aircraft. Further, in the switch group 24, 25 is an automatic switch for selecting whether or not to automatically control the amount of extension of the narrow guide, 26 and 27 are manual operation switches of the narrow guide, and 28 is the extension of the narrow guide. It is a setting device (variable resistor) for setting the amount.
In addition, on the side panel 29 on the side of the seat 20, a traveling speed change lever 30, a reaping clutch lever 31, and a work equipment clutch lever 32 are provided.
The power of the engine 33 mounted under the seat 20 is transmitted to the pre-processing unit 3 when the reaping clutch lever 31 is turned on and operated, and the power of the engine 33 is similarly threshed when the work implement clutch lever 32 is turned on and operated. It is transmitted to the working unit such as the machine 4.

Further, as shown in FIG. 6, a box 36 for storing the combine instruction manual 35 and the like is integrally attached to the side surface of the engine cover 34 covering the engine 33 on the step 19 side, and is provided on the upper portion. The lid 37 is rotatable by a hinge 38, and if the clamp 36a attached to the box 36 is removed from the hook of the lid 37, the lid 37 can be opened and the instruction manual 35 and the like can be taken out and stored. A hole 34a formed by bending is opened at an upper position of the engine cover 34 facing the box 36.
Even when water enters the box 36 through the gap between the hinges 38 of the lid 37 when the water is washed, the above-mentioned bent portion 34b of the engine cover 34 removes water toward the engine 33 side, and the instruction manual 35
Etc., and cools the engine 33 and radiator (not shown) even if water entering through the gap between the lid 37 and the box 36 fills the box 36 with dew. The hot air for drying does not dry it and wet the instruction manual 35.

FIG. 5 is a control block diagram of the weeding device, and the control device is constituted by a microcomputer unit 39 including a known CPU, ROM, RAM, input / output interface and the like. The input side interface of the microcomputer unit 39, the automatic switch 25 described above, a manual operation switch 26,27 and a reaping switch 40 for detecting the on / off of the reaping clutch lever 31;
A detector (potentiometer) 41 for detecting the ascending / descending position of the pretreatment unit 3, and a setting device for setting the amount of extension of the narrow guide.
28, and a detector 42 for detecting the amount of protrusion of the narrow guide adjusted by the motor 14 is connected. Further, a lamp 43 provided integrally on the upper surface of the motor 14 and an automatic switch 25, which are connected via an appropriate driver, is connected to the output side interface.

Next, the control operation of the weeding device of the present invention will be described with reference to FIG.
Explaining with reference to the flow chart shown in FIG. 6, the weeding control starts by determining in the first step whether or not one of the manually operated switches 26, 27 is operated. If there is no manual operation, it is determined whether the automatic switch 25 is on or off, and if it is in the on state, the target value X of the overhang amount of the narrow guide 11 is set to the value A of the setter 28, and at the same time the automatic state A lighting command is issued to the lamp 43 to notify it. Then, next, when the reaping clutch lever 31 is turned on and operated, the reaping switch 40 is turned on, and the detector 41 determines that the pretreatment unit 3 is lowered to a predetermined lower position or more and is in the reaping state. , Target value X
Is compared with the current amount B of the narrow guide provided by the detector 42, and if the amount B of extension is small, a forward rotation command is issued to the motor 14, and the motor 14 rotates the narrow guide 11 downward. . On the other hand, if the overhang amount B is large, a reverse rotation command is issued to the motor 14, which causes the motor 14 to move toward the narrow guide 11.
Rotate upwards. And the target value X and the narrow guide
When the overhang amounts B of 11 become equal, a stop command is issued to the motor 14, and the narrow guide 11 is fixed at the overhang position.

Further, in the above-mentioned judgment, it is determined that the cutting clutch lever 31 is operated to be cut.
When the detector 41 determines that the pre-processing unit 3 has been raised above a predetermined rising position and is in the non-cutting state, the target value X is given zero, and the motor 14 is set in the subsequent comparison determination. A reverse rotation command is issued to the narrow guide 11, and the narrow guide 11 is finally rotated to the storage position. Similarly, in the above-mentioned determination, if the automatic switch 25 is in the off state, the lamp 43 is instructed to turn off by informing that the automatic mode has been canceled, and in this case, the automatic switch 25 is in the on state. Immediately after the shift to the cut state, the target value X is given zero, the reverse rotation command is issued to the motor 14 in the subsequent comparison judgment, and the narrow guide 11 is finally rotated to the storage position. It should be noted that unless immediately after the shift from the on-state to the off-state, a stop command is continuously issued to the motor 14 and the narrow guide 11 is fixed at that position.

Further, regardless of whether the automatic switch 25 is turned on or off, when any one of the manual operation switches 26, 27 is operated, the manual operation is prioritized over the automatic control. When the command switch 26 to the storage side is turned on, the target value X is given zero, and the motor 14 continues to rotate in the reverse direction until it reaches the storage position.
If the motor is turned off when it is not in the automatic state,
14 stops, and if it is in the automatic state, then it returns to the automatic control. On the other hand, when the command switch 27 to the extension side of the manual operation switches 26 and 27 is turned on, the target value X is given the maximum extension value M, and the motor 14 rotates forward until the maximum extension position is reached. Then, turn off the manual operation switch 27 in the same way.
If set to, the motor 14 is stopped at that position if it is not in the automatic state, and if it is in the automatic state, then the automatic control is resumed.

In summary, the control contents explained above are summarized as follows. The control of the overhang amount of the narrow guide is performed in the automatic state where the automatic switch 25 is turned on so that the reaping clutch lever 31 is in the disengaged position or the pretreatment section. In the non-mowing work state in which 3 is in the raised position, the narrow guide 11 is automatically stored, so that the narrow guide 11 does not stick out of the airframe when moving between fields or traveling on the road. Does not come into contact with obstacles and cause damage or deformation. Further, when the combine 1 enters the field and starts the mowing operation, the narrow guide 11 in the storage position automatically moves to the overhang instruction position of the setting device 28 provided in the control unit 5 upon detection of the start of the mowing operation. During the mowing operation, the narrow guide 11 keeps the uncut grain culms away from the machine body and functions as a weed for the uncut grain culms. During the cutting operation, when the overhang amount of the narrow guide 11 is unsuitable and the uncut grain culm still wraps around the body, or when the narrow guide 11 pushes down the uncut grain culm, or if shedding occurs, By appropriately operating the setting device 28, the narrow guide 11 is moved to the position indicated by the setting device 28, and the amount of extension of the narrow guide 11 can always be made appropriate.

Furthermore, when the pretreatment section 3 is raised to the end of the field and the machine is turned, the narrow guide 11 is automatically set to the storage position, and the narrow guide 11 contacts the concrete ridge or the like and is damaged or damaged. No deformation occurs. Then, when the turning of the machine is finished and the next row of grain culms is cut, the narrow guide 11 will automatically move to the overhang position set by the setting device 28 before turning as described above. Therefore, in the same field, the grain culm has almost the same properties, and
It is not necessary to change the overhang amount of 11 by the setting device 28, and efficient cutting work can be performed. On the other hand, in a field without concrete ridges, it is not necessary to move the narrow guide 11 to the storage position once during non-mowing work.In that case, the automatic control is turned off and the narrow guide 11 is manually extended. The amount may be determined. At that time, narrow guide
11 moves to the storage side or the overhang side while operating the manual operation switches 26 and 27, and if the pressing of the manual operation switches 26 and 27 is cut off at the appropriate overhang position, the narrow guide 11 will It is fixed at the overhang position.

Further, in the above-described embodiment, the narrow guide 11 is automatically moved to the storage position in accordance with the shift to the non-mowing work state (disengagement of the mowing clutch, or rise of the pretreatment section). If the automatic control is not specially provided, when the mowing work is finished, the narrow guide 11 is automatically moved to the storage position when the automatic switch 25 is turned off as shown in the embodiment, for example. If this is done, the narrow guide 11 will be stored when traveling on the road, and the narrow guide 11 will not be damaged. The narrow guide 11 of the present invention is not limited to the one in which the lateral extension of the machine body is changed by the vertical rotation as shown in the embodiment, but is shown in the prior art (Japanese Utility Model Laid-Open No. 5-67229). It may be replaced with one that changes the lateral extension amount of the machine body by horizontal movement as described above, and as the drive device of the narrow guide 11, instead of the motor 14 shown in the embodiment, air, Alternatively, another actuator such as a hydraulic cylinder may be used, and a dedicated switch for instructing storage without using the automatic switch 25 as shown in the embodiment for moving the narrow guide 11 to the storage position. May be separately provided and the present invention is not limited to the apparatus of the embodiment.

[0017]

As described above, the combine weeder of the present invention comprises the setting device 28 for setting the amount of overhang of the narrow guide 11, and the detector 42 for detecting the adjustment amount of the narrow guide drive device 14. , A control device 39 for controlling the operation of the narrow guide drive device 14, the control device 39 including a setter 28 and a detector.
Based on 42, the narrow guide drive device 14 is operated in the forward and reverse directions so that the two values match, and the narrow guide 11 is controlled so as to reach the set overhang amount A. When moving the to the overhang position with the start of the mowing work, the narrow guide 11 will automatically move to the overhang position instructed by the setting device 28, and the troublesome adjustment work of the narrow guide 11 is unnecessary. Mowing work can be performed efficiently. Further, if the control device 39 is operated so that the narrow guide drive device 14 is actuated to one side based on the detection of the non-mowing work state, and the narrow guide 11 is controlled to be in the storage position, the operator's hand It is possible to prevent the narrow guide 11 from being damaged or deformed in advance by automatically placing the narrow guide 11 in the storage position when turning the vehicle or traveling on the road without bothering. Further, when the control device 39 described above is operated when the automatic switch 25 is turned off, the narrow guide drive device 14 is operated to one side to control the narrow guide 11 so as to be in the storage position. Thus, the narrow guide 11 can be immediately moved to the storage position, and the narrow guide 11 is not damaged when traveling on the road.

[Brief description of drawings]

FIG. 1 is a side view of a narrow guide.

FIG. 2 is a perspective view of a combine.

FIG. 3 is a front view showing a part of the combine.

FIG. 4 is a perspective view of a control unit.

FIG. 5 is a control block diagram.

FIG. 6 is a sectional view of an engine cover portion.

FIG. 7 is a flowchart of weed control.

[Explanation of symbols]

 1 Combine 3 Pre-treatment section 7 Grass body 11 Narrow guide 14 Motor (narrow guide drive device) 25 Automatic switch 26 Manual operation switch 27 Manual operation switch 28 Setting device 39 Microcomputer unit (control device) 40 Mowing switch 41 Detector (front 42 Detector (for detection of narrow guide overhang)

Claims (3)

[Claims] 1. A combine in which a narrow guide is provided extending from a rear portion of the grass body along a lateral side of the machine body, and an amount of extension of the narrow guide in the machine body lateral direction is adjustable by a narrow guide drive device. A weeding device, wherein the weeding device is a setting device for setting the amount of overhang of the narrow guide,
It consists of a detector that detects the adjustment amount of the narrow guide drive device and a control device that controls the operation of the narrow guide drive device, and the control device is based on the setting device and the detector so that the values of the two will match. A combine weeding device, characterized in that the guide drive device is operated in forward and reverse directions to control the narrow guide to a set overhang amount. 2. The control device actuates the narrow guide drive device to one side based on the detection of the non-mowing work state, and controls the narrow guide to the stored position. Combine weeding device. 3. The control device controls the operation of the narrow guide drive device based on the setter and the detector when the automatic switch is turned on so that the values of the both coincide with each other, and when the automatic switch is turned off, The combine weeding device according to claim 1, wherein the narrow guide drive device is operated to one side to control the narrow guide so as to be at the storage position.