JP2001258365A - Levee edge control system for combine harvester or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system in a combine harvester or the like, designed to control regulating output so as to avoid excessive regulation when the threshing depth for grain culms to be fed to a threshing device is regulated to deep threshing side in making a high-level reaping on a levee edge and then subjected to reverse regulation to shallow threshing side. SOLUTION: This control system works in such a way that, in a combine harvester or the like having a high-level reaping detective means 2 for detecting a situation of high-level reaping on a levee edge by a reaping device 1, a threshing depth detective means 4 for detecting the threshing depth position of grain culms to be fed to a threshing device 3 and a threshing depth regulating means 5 for regulating the threshing depth position of such grain culms, when a high-level reaping situation is detected by the means 2, a regulation toward deep threshing side is made to a specified position by the means 5 followed by reversion to the original threshing depth position; wherein when the situation stands in reaping operation, the regulating output toward shallow threshing side by the means 5 is turned ON in response to the ON signal on deep threshing side from the detective means 4, concurrently the regulating output toward shallow threshing side is turned OFF by the OFF signal from the means 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ridge control device such as a combine for controlling the handling depth of grain culms supplied to a threshing device by detecting a high cutting state at a ridge during a mowing operation. And so on.

[0002]

2. Description of the Related Art At the time of work in a combine or the like, a culm harvested by a reaping device is transported and supplied to a threshing device to perform a threshing operation. A ridge is always provided around the section. At this ridge, if the normal cutting height is used, there is a problem in cutting, so it is necessary to change to a higher cutting.

When the high cutting state is detected, the handling depth of the grain culm supplied to the threshing apparatus is automatically adjusted to a predetermined position by the handling depth adjusting means to the deep handling side. Conventionally, after the deep handling is adjusted, the handling depth is detected by the handling depth detecting means, and the neutral or shallow handling is performed by the handling depth position detecting means for detecting the handling depth position by the handling depth adjusting means. The adjustment was performed continuously to the shallow side until the position was reached. However, when such adjustment is performed, excessive adjustment to the shallow handling side occurs, and problems such as unhandledness during threshing and spilling of the culm during harvesting conveyance occur.

[0004] Therefore, the present invention is to adjust the handling depth of the cereal culm supplied to the threshing device at the time of high cutting on the ridge, to the deep handling side,
The control output is controlled so as not to be excessively adjusted when returning to the shallow handling side.

[0005]

According to the first aspect of the present invention, there is provided a cutting height detecting means for detecting a high cutting state in a row by a cutting device, and a handling depth of a grain culm supplied to a threshing device. When a high cutting state is detected by the cutting height detecting means 2 in a combine or the like having a processing depth detecting means 4 for detecting the cutting depth position and a processing depth adjusting means 5 for adjusting the processing depth position, After adjusting to the predetermined handling position by the depth adjusting means 5 and returning to the original handling depth position, when the harvesting operation is in progress, the handling depth of the handling depth detection means 4 is increased. The ridge control device is characterized in that the adjustment output to the shallow handling side by the handling depth adjusting means 5 is turned on in response to the ON signal on the side.

According to a second aspect of the present invention, there is provided a combine or the like having the cutting height detecting means 2, the handling depth detecting means 4 and the handling depth adjusting means 5 as described above. When the mowing state is detected, the mowing depth is adjusted to a predetermined position by the handling depth adjusting means 5 and then returned to the original mowing depth position. In response to the ON signal on the deep handling side of the depth detecting means 4, the adjustment output to the shallow handling side by the handling depth adjusting means 5 is set to O.
N, and the control output to the shallow handling side is turned off by the OFF signal of the handling depth detection means 4.

[0007]

According to the first aspect of the present invention, with the above-described configuration, when working on a combine or the like, a problem occurs in cutting with a normal cutting height at the ridge, so that the cutting device 1 is raised to perform high cutting. When the high cutting state is detected by the cutting height detecting means 2, the handling depth adjusting means 5
After automatically adjusting the deep-handed side to the predetermined position by the, when returning the deep-handed state to the original depth-of-hand position, when in the reaping work state, for example, the processing depth detection In response to the ON signal detected by the tip detection rod of the means 4, the adjustment output to the shallow handling side by the handling depth adjusting means 5 is set to O.
By setting N, the handling depth of the grain stalk can be accurately adjusted.

According to the second aspect of the present invention,
At the time of work in a combine or the like, there is a problem in mowing at the normal mowing height at the edge of the ridge. Therefore, the mowing device 1 is raised to perform high mowing. The high mowing state is detected by the mowing height detecting means 2. When it is detected, the working depth adjustment means 5 automatically adjusts the working depth to the predetermined position, and then returns the working depth to the original working depth position. For example, in response to the ON signal detected by the tip-side detection rod of the handling depth detecting means 4, the adjustment output to the shallow handling side by the handling depth adjusting means 5 is set to O.
N, and the control output to the shallow handling side is turned off by the OFF signal of the tip detection rod, whereby the handling depth of the grain culm can be adjusted more accurately.

[0009]

According to the first aspect of the present invention, as described above,
At the time of work in a combine or the like, the mowing device 1 is raised to perform high cutting at the edge of a ridge. When the high cutting state is detected, the cutting device is automatically adjusted to a predetermined position to a deep-handed side, and then the depth is adjusted. When returning the gripping state to the original gripping depth position, if it is in the harvesting work state, ON when the tip side is detected
By turning on the adjustment output to the shallow handling side in response to the signal, it is possible to continuously adjust to the neutral or shallow handling position by the handling depth position detecting means for detecting the handling depth position as in the related art. As in the case, excessive adjustment to the shallow handling side does not cause problems such as unhandled during threshing and spilling of culm during harvesting transport, and intermittently and smoothly adjust the handling depth of grain culm. Can be done.

According to the second aspect of the present invention, as in the above-described operation, the cutting device 1 is raised to perform high mowing near the ridge during work in a combine or the like, but when this high mowing state is detected, the predetermined cutting is automatically performed. After returning to the original handling depth position after making adjustments to the deep handling side to the position, when in the harvesting work state, the ON position where the tip side is detected
The control output to the shallow handling side is turned on in response to the signal, and the control output to the shallow handling side is turned off by the OFF signal of the tip detection, thereby detecting the handling depth position as in the related art. As in the case of continuous adjustment to the neutral or shallow handling position by means of the handling depth position detection means, excessive adjustment to the shallow handling side may result in unhandled during threshing or spillage of culm during harvesting transport. The handling depth of the grain stalk can be adjusted more accurately, intermittently, and smoothly without causing any trouble.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 13 shows the entire structure of the combine, in which a traveling device 8 having a pair of left and right traveling crawlers 7 traveling on the soil surface is provided below the chassis 6, and a feeder is provided on the chassis 6. A grain tank 1 for threshing grain culms supplied by being pinched and conveyed to the chain 9, sorting and collecting the threshed grains and temporarily storing them.
0 and a threshing device 3 having a dumping auger 11 for discharging the grains stored in the tank 10 to the outside of the machine.

In addition, when the feed culm is a short culm adjacent to the back side of the feed chain 9, the threshing short culm chain 9 a which clamps only the entrance portion of some extremely short culms and thereafter releases it. Let it be placed. In front of the threshing device 3, a weeding body 12 for weeding the planted grain culm from the front end side, a raising part 13 for causing the weeded grain culm, a cutting blade part 14 for cutting the caused grain culm, A handling depth adjusting and transporting unit 15 that adjusts the handling depth during the transport while scraping the harvested grain stem,
A supply adjustment transport unit 1 that takes over the transported grain culm and transfers it to the feed chain 9 or the threshing short culm chain 9a.
The mowing apparatus 1 having a mower 6 and the like is suspended from the front end of the chassis 6 so as to be able to move up and down on the soil surface by a mowing elevating cylinder 17 driven by hydraulic pressure.

An operating device 18 for controlling the operation of the combine on one side of the reaper 1 and an operating seat 18 for this operation.
a cabin 20 that covers the operating device 18 and the operating seat 18a with the Glen tank 10 disposed behind the operating seat 18a and an engine 19 mounted below the operating tank 18a.
Is arranged. The harvester 1, the threshing device 3, the traveling device 8, the operating device 18, the engine 19, the cabin 20, and the like constitute a combine body 21.

As shown in FIG. 4, FIG. 5, FIG. 6, and FIG. 7, the mowing device 1 fixes a mowing frame 23 to an upper end of a traveling transmission case 22 mounted on a front end of the chassis 6; A mowing input case 24 is rotatably supported on the mowing stand 23, and a pipe-shaped mowing main frame 25 extending downward from the mowing input case 24 is joined thereto. A mowing input shaft 27 fixed to a section is internally supported by the input case 24, and the input shaft 27 and a mowing main shaft 28 mounted on the main frame 25 are interlocked and connected via a bevel gear.

The cutting main frame 25 and a lower horizontal transmission case 29 provided at the lower part of the cutting device 1 over its entire width are joined to each other, and the cutting main shaft 28 and a lower horizontal shaft 30 housed in the lower horizontal transmission case 29 are joined. And an intermediate vertical frame 31 extending from the vicinity of the left end of the lower horizontal transmission case 29 toward the front and obliquely upward, and the lower horizontal shaft 30 and the intermediate vertical frame 31 are internally mounted. The intermediate longitudinal axis 32 is linked and connected via a bevel gear.

The intermediate vertical frame 31 and an upper horizontal transmission case 33 provided over the full width of the mowing device 1 are joined via a speed change case 34 by a gear shift. And a left end portion of an upper horizontal shaft 36 housed in the upper horizontal transmission case 33 via a gear of the transmission case 34 and a belt clutch 35.

Five raising drive cases 3 corresponding to the raising portions 13 which are joined to the upper horizontal transmission case 33 and raise five rows of uncut grain culm by one center and two left and right sides.
7 is projected downward, and the upper horizontal shaft 36 and each raising drive shaft 38 housed in the raising drive case 37 are connected to each other via bevel gears in an interlocking manner, and each raising drive shaft 38 and the raising lug 39a are connected. And a raising shaft 40 on which a raising sprocket 39 for driving a raising chain 39b attached with the shaft is interlocked and connected via a bevel gear.

A pair of left, middle, and right rag belts 41a, 41b, and 41c for scraping the stem side of the stalks harvested to the rear side of each herbaceous body 12, and scraping by the group of rug belts 41. Each raked star wheel 42a, 42b, 42c for further squeezing and holding the inserted grain stem is provided, and each stock transfer chain 43a, 43b arranged in a Y-shape from the raked star wheels 42 group. , 43c is connected to a handling depth adjusting chain 5 serving as a handling depth adjusting means 5 for adjusting the handling depth of the transported grain culm to be deep or shallow, and is configured to be linked.

As shown in FIG. 8, the handling depth adjusting chain 5 is arranged so as to be able to swing up and down by a handling depth adjusting motor 45 with its front end as a fulcrum. On the upper side of the height adjustment chain 5, left, middle and right ear tip transport lugs 46a, 46b and 46c for transporting the ear tip side corresponding to the root side of the grain stem are arranged, and the handling depth is set. The adjustment transport unit 15 is configured.

As shown in FIG. 9, the grain culm which is taken over from the handling depth adjusting chain 5 and supplied to the threshing apparatus 3 is usually moved to the standard state side by the feed chain 9 according to the culm length, and particularly in the ridge. In the case of an extremely short culm at the time of control, a supply adjustment chain 47 for changing the supply to the deep handling side by the threshing short culm chain 9a can be driven by a supply drive shaft 48 interlocked to the cutting input shaft 27 via a bevel gear. To be configured.

A chain guide 47a for guiding the supply adjusting chain 47 is provided via an adjusting arm 49a so as to be movable back and forth by driving a supply adjusting motor 49, and a motor limit switch for detecting the driving of the supply adjusting motor 49. The supply adjusting and transporting section 16 is configured by arranging 50.

As shown in FIG. 10, the cutting blade portion 14 for cutting uncut kernels is provided below the raking star wheel 42 group.
Weeding rods 12a for supporting the weeding bodies 12 are fixedly mounted on a lower frame 51, which is divided into right and left portions over the entire width of the reaper 1, and the lower frame 51 is attached to the lower lateral transmission case 2
9 and the left and right cutting blades 14 are configured to be reciprocally movable left and right by left and right crank mechanisms 52 respectively fixed to both ends of the lower horizontal shaft 30.

As shown in FIG. 11, the handling depth adjusting transport unit 1
5, a left and right grain culm sensor front 53 for detecting ON / OFF of the presence or absence of a transported grain culm near each front end position of the left and right scraping rug belts 41a and 41c, and a transported grain culm near the front position of the supply adjusting chain 47. And a grain stalk sensor 54 for ON / OFF detection of the presence / absence of each of them is arranged and configured.

A culm length sensor 5 for detecting ON / OFF of the length and length of the culm length of the harvested grain culm at a position near the upper part of the raising portion 13.
5 and the handling depth position of the transported grain culm at a position near the rear of the right ear tip transport lug 46c.
A handling depth sensor 4 as a handling depth detecting means 4 for detecting ON / OFF of b is arranged and configured.

A cutting height sensor 2 as cutting height detecting means 2 for detecting a cutting height position of a grain stalk by a turning angle of a potentiometer or the like near a vertical rotation fulcrum of the cutting device 1; A handling depth position sensor 56 for detecting the handling depth adjustment position of the transported grain stalk by a rotation angle of a potentiometer or the like is arranged at a position near the vertical swing fulcrum of the handling depth adjustment chain 5.

The operating depth adjustment chain 5 is adjusted by the operating depth adjusting motor 45 to the depth and shallowness while checking the value detected by the operating depth sensor 4 with the operating depth position sensor 56. When the control unit D and the cutting height sensor 2 detect a predetermined high cutting position due to the elevation of the cutting device 1 at the ridge during the cutting operation, the handling depth adjusting chain 5 is automatically handled to the predetermined position. The ridge-side control switches 57 that adjust to the side are arranged and configured.

As shown in FIG. 12, a controller 58 having a built-in ridge-side control function for controlling the operation of an automatic circuit by mainly arranging a CPU and controlling the handling depth of grain culm during high cutting at the ridge. To the input side, through the input interface 58a, the cutting height sensor 2, the handling depth sensor 4, the left and right grain culm sensors 53 in front, the grain culm sensor 54, the culm length sensor 55, the handling depth position sensor 56, The ridge-side control switch 57, the motor limit switch 50, and the like are connected to each other.

To the output side of the controller 58, through the output interface 58b, a deep adjustment relay 59a for driving the depth adjustment motor 45 to the deep adjustment side and a shallow adjustment relay for driving to the shallow alignment side 59b, and a supply adjusting relay 60 for driving the supply adjusting motor 49 to the threshing short culm chain 9a side, and the like.

The traveling device 8 is moved by bringing the weeds 12 close to the soil surface.
The body 21 is moved forward to cut the uncut grain culm by the reaper 1, and at the time of this cutting, one row at the center and two rows of cereal culms at each of the left and right sides are pulled up to the left, middle, and right raising portions. 13
And at the same time, the stock side is squeezed by the left, middle and right rake belts 41, and the raked stock side is pinched by the rake star wheel 42 group and the cutting blade is simultaneously cut. The mowing is performed by the unit 14.

The harvested stock side is collected and conveyed by the stock transfer chains 43 of the left, middle, and right stock source collection and transfer sections.
From this confluence, it is taken over to the supply adjusting chain 47 through the handling depth adjusting chain 5 and is transported and supplied to the threshing apparatus 3 while adjusting the handling depth, and the tip side is set to the left, middle, and right tip collecting sections. The conveyed lugs are collected by the spike transport lugs 46 and merged with the middle position of the right spike transport lug 46c, and further conveyed to the threshing apparatus 3 by the right spike transport lug 46c from this junction.

In such a combine operation, when cutting is performed at the ridge, as shown in the flowchart of FIG. 2, the clutches are turned on together with the ridge control switch 57 being turned on, and the reaper 1 is cut at the ridge. Is raised by the cutting height sensor 2 to detect a high cutting state when high cutting is performed.

If this detection is, for example, 20 cm or more, and the culm length of the cut grain culm detected by the culm length sensor 55 is, for example, 60 cm or more, the handling depth adjusting chain 5 is moved to a predetermined position according to the culm length. When the culm length is 60 cm or less, the handle depth adjustment chain 5 is automatically adjusted to the deepest handle side, and the supply adjustment chain 47 is supplied to the threshing short culm chain 9a. Adjust to the position you want. (The value detected by the handling depth sensor 4 is ignored during the ridge control.) After the adjustment to the deep handling side is performed, the original handling depth is used when shifting from high cutting to normal cutting height. When returning to the position,
As shown in the diagram of FIG. 1, the front 53 and the rear 54 of the grain culm sensor are ON only when the tip side detection rod 4a is turned ON together with the stock side detection rod 4b of the handling depth sensor 4. In the harvesting operation state, control is performed to turn on the output to the handling depth adjustment motor 45 for adjusting the handling depth adjustment chain 5 to the shallow handling side.

As described above, by turning on the tip side detection rod 4a together with the stock side detection rod 4b of the handling depth sensor 4,
In addition to turning on the adjustment output of the handling depth adjustment chain 5 to the shallow handling side, when the tip side detection rod 4a is turned off, the adjustment output of the handling depth adjustment chain 5 to the shallow handling side is also changed. OF
By performing the control so as to perform the F control, the adjustment control can be further improved.

When shifting from the deep-cutting position to the normal cutting height at the time of high cutting at such a ridge, intermittently and smoothly returning to the shallow-cutting side by detecting the tip-side detection rod 4a. Therefore, as in the prior art, the handle depth adjustment chain 5 is continuously moved to the shallow handle side until the handle reaches the neutral or shallow handle position as detected by the handle depth position sensor 56 as the cutting height changes. It is possible to prevent problems such as leftover during threshing and spillage of culm during harvesting and transport, which are caused by excessive adjustment to the shallow handling side, as in the case of performing adjustment of stalks.

As shown in the diagram of FIG. 3, when the height is continuously adjusted to the predetermined position by the detection of the high cutting state by the cutting height sensor 2 as described above, When the stock side detection rod 4b of the handling depth sensor 4 is ON and the tip side detection rod 4a is OFF, the control output of the handling depth adjustment chain 5 to the deep handling side is turned ON, and the stock side When the detection rod 4b is ON and the tip side detection rod 4a is also ON, control is performed to turn off the adjustment output of the handling depth adjustment chain 5 to the deep handling side.

As described above, when the high cutting state is detected by the cutting height sensor 2, the neutral position of the stock side detecting rod 4b and the tip side detecting rod 4a of the handling depth sensor 4 is turned on. Only when the detection is performed, or when both of the detection rods 4a and 4b detect a shallow OFF state, control is performed to turn on the adjustment output of the handling depth adjustment chain 5 to the deep handling side. Let

When shifting from the normal cutting height to the high cutting state in such a ridge, intermittently and smoothly adjusting and shifting to the deep-handing side in accordance with the detection state of the handling depth sensor 4. Therefore, it is possible to prevent excessive adjustment that occurs when performing continuous adjustment to the deep handling side as in the related art, and to prevent a decrease in the rotation speed of the engine 19 due to an increase in threshing load. .

[Brief description of the drawings]

FIG. 1 is a diagram showing an adjustment output state to a shallow-hand side when shifting from high cutting to normal cutting height.

FIG. 2 is a flowchart showing a procedure for adjusting a handling depth adjustment chain to a deep handling side during high mowing.

FIG. 3 is a diagram showing an adjustment output state to a deep handling side when shifting from a normal cutting height to a high cutting.

FIG. 4 is a plan view showing a collecting mechanism mainly including a grain culm tip side of a reaper.

FIG. 5 is a plan view showing a collection mechanism mainly including a grain stem side of a reaper.

FIG. 6 is a side view showing the overall configuration of the reaper.

FIG. 7 is a block diagram showing a power transmission path of the reaper.

FIG. 8 is a side view illustrating a configuration of a handling depth adjusting transport unit of the mowing device.

FIG. 9 is an enlarged plan view showing a configuration of a supply adjusting and transporting unit of the reaper.

FIG. 10 is a plan view showing the entire configuration of a cutting blade portion of the cutting device.

FIG. 11 is a schematic side view showing an arrangement state of each sensor and switches in the reaper.

FIG. 12 is a block diagram showing an electric circuit related to automatic control.

FIG. 13 is a side view showing the overall configuration of the combine.

[Explanation of symbols]

 1. Reaper 2. 2. Cutting height detecting means Threshing device 4. Handling depth detection means 5. Handling depth adjustment means

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B074 AA01 AB01 AC02 BA13 CB05 DA02 DB03 DC01 DC05 EA03 EA08 EC01 EE05 FA04 FB01 2B076 DA05 EA03 EB04 EC23 ED30 2B084 AA01 AC05 BH20 CC03 CE03 CG03 DD07 DG01 GC03 DP03 GD02 HB02 JA22 JD06 LA06 LA52 LB02 LB05 LC04 LD05 MA04 MA22

Claims (2)

[Claims] 1. A cutting height detecting means 2 for detecting a high cutting state at a ridge by a cutting device 1, and a handling depth detecting means 4 for detecting a handling depth position of a grain culm supplied to a threshing device 3. In a combine or the like having a handling depth adjusting means 5 for adjusting the handling depth position, when a high cutting state is detected by the cutting height detecting means 2, the handling depth adjusting means 5 performs a deep handling to a predetermined position. After the adjustment to the cutting side, when returning to the original handling depth position, when in the harvesting operation state, the handling depth detection means 4
A ridge control device which turns on the adjustment output to the shallow handling side by the handling depth adjusting means 5 in response to the ON signal on the deep handling side. 2. As described above, in a combine or the like having the cutting height detecting means 2, the handling depth detecting means 4 and the handling depth adjusting means 5, the high cutting state is detected by the cutting height detecting means 2. When the working depth adjusting means 5 adjusts the working depth to the predetermined position and then returns to the original working depth position, when the harvesting operation is in progress, the working depth detecting means 4 is used. In response to the ON signal on the deep handling side, the adjustment output to the shallow handling side by the handling depth adjusting means 5 is turned ON, and the adjustment to the shallow handling side is performed by the OFF signal of the handling depth detecting means 4. A ridgeside control device characterized by turning off the output.