JP3833983B2 - Combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine.
[0002]
[Prior art]
Conventionally, as one form of combine, a cutting part is attached to the front part of the fuselage via a lifting cylinder so that the cutting part can be moved up and down, and a cutting height sensor is provided in the cutting part, and the cutting height sensor is connected to the input side of the control means. The lifting / lowering cylinder is connected to the output side of the control means, and the control means extends and retracts the lifting / lowering cylinder based on the cutting height detection result of the cutting portion by the cutting height sensor. Thus, there is one that performs lifting control (automatic cutting height control) that automatically adjusts the cutting height of the cutting unit (see, for example, Patent Document 1).
[0003]
Moreover, in such a combine, in the lifting control (automatic cutting height control), there are a high cutting mode in which the culm is cut at a high position and a low cutting mode in which the culm is cut at a low position. One of these can be selected and operated with a high cutting / low cutting switch, and the cutting height can be set with a volume switch type cutting height setting dial.
[0004]
That is, on the input side of the control means, in addition to the cutting height sensor, the high cutting / low cutting switching switch, the cutting height setting dial, and the lifting control (automatic cutting height control) are started. A lifting control switch and a setting position automatic lowering switch for automatically lowering the cutting part to a preset cutting height are connected.
[0005]
In this way, when the cutting height is set in advance using the high cutting / low cutting switching switch and the cutting height setting dial and the elevation control switch is pressed and the set position automatic lowering switch is pressed, the cutting part is set. It can be automatically lowered to the cutting height.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-23808
[Problems to be solved by the invention]
However, the above-described combine can automatically lower the cutting portion to the set cutting height by pressing the automatic setting position lowering switch when the lifting control switch is pressed to perform the lifting control. However, when the elevation control switch is not pressed, the cutting unit cannot be lowered even if the automatic setting position lowering switch is pressed.
[0008]
This means that an operator who is accustomed to raising and lowering the cutting part by manual operation must operate two switches, the high cutting / low cutting switch and the cutting height setting dial, and the high cutting mode and low cutting mode. This is because, in the cutting mode, since the scale size by the cutting height setting dial is different, it is difficult to understand how the cutting height is set.
[0009]
Further, when the cutting operation is performed in the high cutting mode, for example, there is no means for avoiding the cutting blade device colliding with the reed at the cutting edge. May collide with the bag.
[0010]
[Means for Solving the Problems]
Therefore, in the present invention, on the input side of the control means, the cutting height setting means capable of continuously setting all the zones from the low cutting zone to the high cutting zone, and the high cutting position that cannot be detected by the cutting height sensor. A mowing part raising / lowering sensor for detecting the height, an automatic lowering switch for setting position for automatically lowering the mowing part to the cutting height set by the mowing height setting means, and an automatic raising / lowering for starting the raising / lowering control In addition to connecting the switch, the control means is that when the set position automatic lowering switch is turned on, the automatic lifting switch is in the ON state, and the high cutting zone is set by the cutting height setting dial, so that the preset thrust prevention is set. If the height of the cutting height sensor is lower than the height, the rush prevention control is performed to forcibly raise the cutting height sensor to the rush prevention height. When the automatic lowering switch is ON when the dynamic lowering switch is turned ON, the high cutting zone is set by the cutting height setting dial, and the height of the cutting height sensor is higher than the preset thrust prevention height The lift control is performed based on the deviation of the cutting unit lifting sensor with respect to the target height corresponding to the set value set by the cutting height setting dial, and when the set position automatic lowering switch is turned on, the automatic lifting switch When in the ON state and the low cutting zone is set by the cutting height setting dial, the height is raised or lowered based on the deviation of the cutting height sensor from the target height corresponding to the set value set by the cutting height setting dial. When control is performed and the automatic position lowering switch is turned on when the automatic position lowering switch is turned on, it is set with the cutting height setting dial. The lowers the reaper to the height, there is provided a combine which is characterized in that the elevation control.
[0011]
Further, according to the present invention, the cutting height is set higher than a preset anti-rushing height in order to prevent the cutting blade device from being pushed into the ridge etc., even though the high cutting zone is set by the cutting height setting means. In the case where the height of the sensor is low, the control means forcibly prevents the thrust height sensor from being raised to the thrust prevention height.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0013]
That is, the combine according to the present invention has a basic structure in which a cutting part is attached to the front part of the fuselage through a lifting cylinder so that the cutting part can be raised and lowered, and a cutting height sensor is provided in the cutting part. Is connected to the input side of the control means, and the lifting cylinder is connected to the output side of the control means, and the control means is used for raising and lowering based on the cutting height detection result of the cutting part by the cutting height sensor. By operating the cylinder to extend and contract, lifting control is performed to automatically adjust the cutting height of the cutting part.
[0014]
As a characteristic structure, on the input side of the control means, a cutting height setting means capable of continuously setting all zones from the low cutting zone to the high cutting zone, and a high position that cannot be detected by the cutting height sensor. A cutting unit raising / lowering sensor for detecting the cutting height is connected to a setting position automatic lowering switch for automatically lowering the cutting unit to the cutting height set by the cutting height setting means.
[0015]
In addition, although the high cutting zone is set by the cutting height setting means, the height of the cutting height sensor is higher than the preset protrusion prevention height in order to prevent the cutting blade device from being pushed into the scissors or the like. Is low, the control means forcibly controls the cutting height sensor to raise the cutting height sensor to the protrusion preventing height.
[0016]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0017]
1 and 2 show a general-purpose combiner as a combine 1 according to the present invention. The combine 1 is provided with a pair of left and right crawler type traveling units 3 and 3 at a lower part of a body frame 2, and FIG. A mowing unit 4 is attached to the front end of the machine body frame 2 via a transport unit 5 so as to be movable up and down. A threshing unit 6 is disposed immediately after the transport unit 5 and swings to a position directly below the threshing unit 6. On the other hand, the sorting unit 7 is disposed, and the squeezing processing unit 8 is disposed at the rear upper part of the swing sorting unit 7 and immediately after the threshing unit 6.
[0018]
The combine 1 is a front part of the machine body frame 2, and an operation part 9 is disposed immediately above the transport part 5, a position immediately after the operation part 9, and immediately above the threshing part 6. The grain storage unit 10 is disposed at the position, and further, the prime mover unit 11 is disposed immediately after the grain storage unit 10.
[0019]
Below, the structure of each part of the combine 1 is demonstrated.
[0020]
[Traveling section]
As shown in FIG. 1, the traveling unit 3 has a traveling frame 12 attached to the lower part of the body frame 2, and the driving wheel 14 is interlocked and connected to the front end portion of the traveling frame 12, while the traveling frame 12 is idled at the rear end portion A wheel 15 is rotatably supported, and a crawler belt 16 is wound between the driving wheel 14 and the idle wheel 15. In the figure, 17 is a rolling wheel.
[0021]
[Mowing section]
As shown in FIG. 1, the cutting unit 4 has a platform 18 connected to the front end of the transport unit 5, and a horizontal feed auger 19 having an axis line in the left-right direction is rotatably mounted in the platform 18. The first cutting blade device 20 is horizontally mounted at a position just in front of the lateral feed auger 19, a divider 21 is disposed at a position just in front of the first cutting blade device 20, and an elevating mechanism 23 is positioned above the divider 21. A scraping reel 22 is arranged via
[0022]
In this way, the culm planted in the field is scraped by the reel 22 and the root portion of the culm is cut by the first cutting blade device 20, and then the lateral auger 19 The harvested cereal grains are gathered together in the substantially central part and delivered to the rear conveying part 5.
[0023]
Further, as shown in FIG. 1, the cutting unit 4 is provided with a second cutting blade device 60 at a position immediately after the lateral feed auger 19, and the remaining stem that has been highly cut by the first cutting blade device 20 is provided in the first position. The two cutting blade device 60 can be cut from the root portion.
[0024]
[Transport section]
As shown in FIG. 1, the transport unit 5 has a feeder house 24 that extends in the front-rear direction attached to the front end of the machine body frame 2 so as to be pivotable up and down, and a transport conveyor 25 is disposed inside the feeder house 24. A front conveyance beater 26 is rotatably mounted on the upper front end of the machine body frame 2. In the figure, reference numeral 27 denotes an elevating cylinder for elevating the mowing unit 4 via the feeder house 24.
[0025]
In this way, the cereals collected by the lateral feed auger 19 of the cutting unit 4 are conveyed to the rear threshing unit 6 by the conveying conveyor 25 and the front conveying beater 26.
[0026]
[Threshing Department]
As shown in FIG. 1, the threshing unit 6 forms a handling chamber 42 immediately after the transport unit 5, and has a cylindrical first handling cylinder 28 and a first handling cylinder 28 having substantially the same outer diameter inside the handling chamber 42. Two handling cylinders 29 are arranged at intervals in the front-rear direction with the axis of rotation directed in the left-right width direction, and a set of three first concaves 30, 30, 30 is continuously stretched in the circumferential direction along the lower half circumferential surface of the first handling cylinder 28, and three sets of second concaves 31, 31, 31 is continuously stretched in the circumferential direction along the lower half peripheral surface of the second handling cylinder 29.
[0027]
Thus, the cereals conveyed by the conveying unit 5 are first handled by the action of the first handling cylinder 28 in the threshing space formed between the first handling cylinder 28 and the first concave 30. In the threshing space formed between the second handling cylinder 29 and the second concave 31 after being threshed while being transferred from the left end of the cylinder 28 to the right end, the action of the second handling cylinder 29 is performed. Is threshed while being transferred from the right end of the second handling cylinder 29 to the left end, and the grain passes through the concaves 30 and 31 due to its own weight and falls to the swinging selection section 7 below. The soot is transferred to the rear waste disposal unit 8.
[0028]
[Oscillation sorting section]
As shown in FIG. 1, the swing selection unit 7 is provided with a swinging body 32 at a position directly below the first handling cylinder 28 and the second handling cylinder 29 so as to be swingable in the vertical direction via a swinging mechanism 33. is doing. 39 is the first grain receiver that extends in the left-right direction and receives the first grain, 40 is the second grain receiver that extends in the left-right direction and receives the second grain, and 41 is the Chinese potato.
[0029]
Further, a first grain conveyor 43 that extends in the left-right direction is disposed in the first grain receiver 39, and a cereal conveyor 44 that extends in the vertical direction on the left end of the same grain conveyor 43 is disposed. While the lower end portion is continuously provided, the upper end portion of the cereal conveyor 44 is continuously provided to the above-described grain storage unit 10, and the first grain in the first grain receiver 39 is the first grain conveyor. 43 → Fresh conveyor 44 → Transport to the grain storage unit 10.
[0030]
And the 2nd conveyance conveyor 45 extended in the left-right direction is arrange | positioned in the 2nd grain receptacle 40, and the reduction | restoration conveyor (not shown) extended in the front-back direction at the left end part of the 2nd conveyance conveyor 45 is arranged. While the rear end portion is continuously provided, the front end portion of the reduction conveyor is continuously connected to the above-described handling chamber 42, the second grain in the second grain receiving rod 40 is reduced to the handling chamber 42, and again. I try to thresh.
[0031]
[Exclusion processing section]
As shown in FIG. 1, the waste processing unit 8 is provided with a rear conveyance beater 47 at a position immediately after the second handling cylinder 29 of the threshing unit 6, and a waste cutter 48 at a rear position of the rear conveyance beater 47. Is arranged.
[0032]
Then, the waste after being threshed by the threshing unit 6 is transported to the waste cutter 48 by the transport action of the rear transport beater 47, and after the shredder is shredded by the waste cutter 48, it is discharged to the outside of the machine body. Like to do.
[0033]
[Operation section]
The driving unit 9 has a substantially rectangular box-shaped cabin 50 disposed in the upper center of the front end of the body frame 2, a seat 51 is disposed in the rear center of the cabin 50 in a plan view, and is positioned in front of the seat 51. A front column 52 is provided, a steering wheel 53 is provided at the upper end of the front column 52, a shift column 59 is provided at a left side position of the front column 52, and a shift lever 54 is provided on the shift column 59. Provided.
[0034]
[Grain storage part]
The grain storage unit 10 includes a Glen tank 55 disposed immediately above the first handling cylinder 28 and the second handling cylinder 29 provided in the above-described threshing unit 6, and the above-described swing sorting unit is provided in the Glen tank 55. 7 is connected to the first grain receiver 39 via a cereal conveyor 44, and a horizontal conveyor screw conveyor 56 is placed in the lower right side of the Glen tank 55 with its axis in the front-rear direction. A vertical conveyor screw conveyor 57 having a lower end portion connected to the rear end portion of the horizontal conveyor screw conveyor 56 is arranged at the right side of the prime mover unit 11 with the axis line in the vertical direction, and the vertical conveyor screw conveyor. A discharge auger 58 having a rear end connected in communication with the upper end of 57 is extended forward, and is rotatable and vertically rotatable around the rear end. 58a is a discharge port of the discharge auger 58.
[0035]
In this way, the first grain selected by the swing sorting unit 7 is conveyed into the grain tank 55 via the cereal conveyor 44 and can be stored in the grain tank 55. The first grain stored in 55 can be discharged from the discharge port 58a to the outside of the machine body through the horizontal carry-out screw conveyor 56 → the vertical carry-out screw conveyor 57 → the discharge auger 58.
[0036]
[Motor part]
The prime mover unit 11 has an engine E disposed on the upper rear portion of the fuselage, and the engine E is linked to each power mechanism unit such as the first cutting blade device 20 and the transmission 13 via a transmission mechanism (not shown). Yes.
[0037]
And by driving the engine E, each power mechanism part operates in conjunction.
[0038]
In the embodiment as described above, in the embodiment according to the present invention, as shown in FIGS. 1 to 3, in the cutting unit 4, the cutting height sensor S <b> 1 is provided immediately after the first cutting blade device 20, Attach a lifting sensor S2 such as a potentiometer that detects the cutting height at a high position that cannot be detected by the cutting height sensor S1 to the vertical rotation support shaft (not shown) of the feeder house 24. While connecting to the input side of the control means 61 provided in the operation part 9, the said raising / lowering cylinder 27 is connected to the output side of the control means 61, and the control means 61 of the cutting part 4 by both sensors S1, S2 Elevating control (automatic cutting height) that automatically adjusts the cutting height of the cutting unit 4 in the range from low cutting to high cutting by operating the lifting cylinder 27 to expand and contract based on the cutting height detection result. Control).
[0039]
The control means 61 has a built-in timer T. On the input side of the control means 61, as shown in FIG. 3, in addition to the cutting height sensor S1 and the cutting part lifting sensor S2, the operating part 9 The cutting height setting dial 62, the setting position automatic lowering switch 63, the predetermined position automatic lifting switch 64, the automatic lifting switch (automatic cutting height control switch) 65, the manual lifting switch 66, and the drive wheel 14 are driven. The vehicle speed sensor 67 attached to the drive shaft 14a is connected.
[0040]
Here, the cutting height setting dial 62 is a volume switch type for setting the height at which the first cutting blade device 20 cuts the cereal, and as shown in FIG. 3, from the low cutting zone Z1 to the high cutting zone. It can be set continuously (analog) up to Z2.
[0041]
And, in the low cutting zone Z1, the scale of a certain range (for example, 10 mm to 150 mm) is set in a dense state so that fine adjustment can be performed, while in the high cutting zone Z2, an integrated range (for example, 150 mm to 400 mm) The scale is set to a rough state so that rough adjustment (adjustment to the extent of alignment) can be performed.
[0042]
The set position automatic lowering switch 63 is a switch for automatically lowering the cutting part 4 to a preset cutting height, and the predetermined position automatic raising switch 64 is used to bring the cutting part 4 to a predetermined height at the end of cutting. The automatic elevating switch 65 is a switch for starting the elevating control (automatic mowing height control) described above, and the manual elevating switch 66 is a cutting part that is manually operated by an operator. 4 is a switch for raising and lowering 4 to adjust the cutting height.
[0043]
The vehicle speed sensor 67 detects the rotational speed of the left and right drive shafts 14a, 14a and outputs it to the control means 61. The control means 61 calculates the average value of both detected values and calculates the vehicle speed. I am trying to judge as.
[0044]
Next, lifting control (automatic cutting height control) according to the present embodiment will be described with reference to FIG.
[0045]
(1) Set position automatic lowering switch 63 is turned ON (S70 Yes), automatic lifting switch 65 is turned ON (S71 Yes), and high cutting zone Z2 is set by cutting height setting dial 62 (S72 Yes), preventing preset rushing When the height of the cutting height sensor is lower than the height, the rush prevention control for forcibly raising the cutting height sensor to the rush prevention height is performed.
[0046]
At this time, the protrusion prevention height can be set to a height at which the first reaping device 20 does not protrude into an obstacle such as a reed, for example, a height separated from the obstacle by about 50 mm.
[0047]
(2) When the automatic elevating switch 65 is not turned on (No in S71), the mowing unit 4 is lowered to the height set by the cutting height setting dial 62, and the elevating control is performed.
[0048]
At this time, the lifting control in the low cutting zone Z1 is performed based on the detection result of the cutting height sensor S1, and the lifting control in the high cutting zone Z2 is performed based on the detection result of the cutting unit lifting sensor S2.
[0049]
(3) When the low cutting zone Z1 is set by the cutting height setting dial 62 (S72 No), the deviation of the cutting height sensor S1 from the target height corresponding to the set value set by the cutting height setting dial 62 The lift control is performed based on the above.
[0050]
(4) When the height of the cutting height sensor is higher than the preset rush prevention height (No at S73), the cutting unit lifting sensor for the target height corresponding to the set value set by the cutting height setting dial 62 Elevation control is performed based on the deviation of S2.
[0051]
Thus, even when the automatic lifting switch 65 is not operated, that is, when the lifting control is not performed, by operating the setting position automatic lowering switch 63, the cutting height set by the cutting height setting dial 62 is reached. The mowing unit 4 can be lowered automatically, and the mowing unit at the beginning of mowing can be aligned with one touch.
[0052]
At this time, since the cutting height setting dial 62 can continuously set all the zones from the low cutting zone Z1 to the high cutting zone Z2, it is easy for the operator to operate and the setting status is easily visible. Therefore, it is possible to prevent erroneous operation.
[0053]
【The invention's effect】
In the present invention, a cutting part is attached to the front part of the machine body through a lifting cylinder so as to be lifted and lowered, and a cutting height sensor is provided in the cutting part, and the cutting height sensor is connected to the input side of the control means. The lifting and lowering cylinder is connected to the output side of the control means, and the control means causes the lifting and lowering cylinder to extend and contract based on the cutting height detection result of the cutting portion by the cutting height sensor. In a combine that is designed to perform lifting control that automatically adjusts the cutting height of the part,
On the input side of the control means, a cutting height setting means capable of continuously setting all zones from a low cutting zone to a high cutting zone, and a cutting position for detecting a cutting height at a high position that cannot be detected by the cutting height sensor. A part position sensor, a setting position automatic lowering switch for automatically lowering the cutting part to the cutting height set by the cutting height setting means, and an automatic lifting switch for starting the lifting control , When the set position automatic lowering switch is turned on, the control means is in the state that the automatic raising / lowering switch is in the ON state, the high cutting zone is set by the cutting height setting dial, and the cutting height is higher than the preset thrust prevention height. When the sensor is low, forcing control is performed to forcibly raise the cutting height sensor to the preventing height. When the automatic lift switch is ON and the cutting height setting dial is set to the high cutting zone, and the cutting height sensor is higher than the preset prevention height, the cutting height The lifting control is performed based on the deviation of the cutting unit lifting sensor with respect to the target height corresponding to the setting value set by the setting dial, and when the setting position automatic lowering switch is turned ON, the automatic lifting switch is in the ON state. When the low cutting zone is set by the cutting height setting dial, the lifting control is performed based on the deviation of the cutting height sensor from the target height corresponding to the setting value set by the cutting height setting dial. If the automatic elevating switch is not in the ON state when the automatic position lowering switch is turned on, the cutting part will reach the height set by the cutting height setting dial. It is lowered, and to perform the elevation control.
[0054]
In this way, even when the automatic elevating switch is not operated, that is, when the elevating control is not performed, by operating the setting position automatic lowering switch, the cutting unit is moved to the cutting height set by the cutting height setting means. It can be lowered automatically, and the position of the cutting part at the beginning of cutting can be adjusted with one touch.
[0055]
At this time, since the cutting height setting means can continuously set all the zones from the low cutting zone to the high cutting zone, it is easy for the operator to operate, and the setting status is easy to visually recognize. Prevention can be achieved.
[0056]
Moreover, in the present invention, although the high cutting zone is set by the cutting height setting means, the cutting height is higher than the preset rush prevention height to prevent the cutting blade device from plunging into the scissors or the like. When the height of the sensor is low, rush prevention control for forcibly raising the cutting height sensor to the rush prevention height is performed.
[0057]
In this way, since the rush prevention control is provided, it is possible to reliably prevent the occurrence of the problem of damaging the cutting blade device by pushing the cutting blade device into a convex portion such as a ridge.
[Brief description of the drawings]
FIG. 1 is a side view of a combine according to the present invention.
FIG. 2 is a plan view of the combine.
FIG. 3 is a control block diagram.
FIG. 4 is a flowchart of automatic cutting height control.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Combine 2 Airframe frame 3 Traveling part 4 Cutting part 5 Carrying part 6 Threshing part

Claims (1)

A cutting part is attached to the front part of the machine body through a lifting cylinder so that the cutting part can be moved up and down, a cutting height sensor is provided in the cutting part, and the cutting height sensor is connected to the input side of the control means. The lifting / lowering cylinder is connected to the output side of the lifting / lowering unit, and the control means extends and retracts the lifting / lowering cylinder based on the cutting height detection result of the cutting portion by the cutting height sensor. In a combine that performs the lifting control to automatically adjust the height,
On the input side of the control means, a cutting height setting means capable of continuously setting all zones from a low cutting zone to a high cutting zone, and a cutting position for detecting a cutting height at a high position that cannot be detected by the cutting height sensor. A part position sensor, a setting position automatic lowering switch for automatically lowering the cutting part to the cutting height set by the cutting height setting means, and an automatic lifting switch for starting the lifting control ,
When the set position automatic lowering switch is turned on, the control means is in the state that the automatic raising / lowering switch is in the ON state, the high cutting zone is set by the cutting height setting dial, and the cutting height is higher than the preset thrust prevention height. When the sensor height is low, forcing control is performed to forcibly raise the cutting height sensor to the preventing height,
When the setting position automatic lowering switch is turned on, the automatic raising / lowering switch is in the ON state, the high cutting zone is set by the cutting height setting dial, and the height of the cutting height sensor is higher than the preset rush prevention height. If it is high, the lifting control is performed based on the deviation of the cutting unit lifting sensor with respect to the target height corresponding to the setting value set by the cutting height setting dial,
Corresponds to the setting value set by the cutting height setting dial when the automatic lifting switch is ON when the setting position automatic lowering switch is turned ON and the low cutting zone is set by the cutting height setting dial To move up and down based on the deviation of the cutting height sensor from the target height
When the automatic position raising / lowering switch is turned on and the automatic raising / lowering switch is not in the ON state, the harvesting unit is lowered to a height set by a cutting height setting dial to perform raising / lowering control .

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