JPH11155341A - Grain stalk raising device such as combine - Google Patents

Abstract

(57) [Summary] In a raising device of a cutting device of a multi-cutting combine, a speed of a multi-row raising lug can be partially changed corresponding to a partially lodging grain culm. A raising device (4) in which a multi-row raising case (3) for driving and raising the raising rug (2) by a raising chain (1) in correspondence with a plurality of planted grain culms is arranged at the front end. In the combine and the like, the chain 1 is provided in a transmission path for transmitting power to the multi-row raising case 3 separately.
And a speed change portion 5 capable of changing the speed of the stalk is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cereal stem raising device such as a combine and the like, and relates to a technical field relating to a device capable of changing the raising speed of a raising device for causing a planted cereal stem for each raising case. Belong.

[0002]

2. Description of the Related Art In a mowing operation such as a multi-row cutting combine, when a grain culm that is laid down is caused, the grain culm is damaged by a raising lug of a raising device, or the tang is caused. Because of this, a state that hinders the scraping and transport of grain stems occurs, so conventionally, when falling down, switching to the lodging mode etc., changing the action speed of the raising rug to prevent these obstacles ,
The response in the lodging mode or the like involves shifting the entire raising device. In the case of multi-row cutting, the shifting of the entire raising device must be performed even when only a part of the stalk row is laid down. There was a disadvantage that the efficiency was reduced.

Therefore, according to the present invention, a transmission portion for changing the speed of the raising chain is provided on a transmission path for transmitting power to each of multiple raising cases of the raising device.

[0004]

According to the present invention, a multi-row raising case 3 for driving a raising lug 2 by a raising chain 1 to cause it to correspond to a multi-row planting grain culm is arranged side by side. In a combine or the like having the arranged raising device 4 at the front end, a transmission portion 5 capable of changing the speed of the raising chain 1 is disposed on a transmission path for transmitting power to the multiple rows of raising cases 3 separately. The configuration of the characteristic cereal stem raising device is adopted.

[0005]

According to the above-mentioned structure, in the cutting operation in the multi-row cutting combine, etc., the planted cereal culm is weeded by the weeding body and then raised by the raising device 4.
For each multi-row raising case 3 arranged at the front end of the mowing device so as to correspond to the multi-row planting grain culm, for example, a power is supplied from a raising drive unit or the like corresponding to the upper side of the raising case 3. By disposing the transmission portion 5 for shifting the speed by a gear or the like in the transmission path for transmitting the The speed of the raising chain 1 rotatably mounted on the raising case 3 is shifted (for example, decelerated) by the transmission unit 5 corresponding to the row of lodging grain culms, and the action speed of the raising lugs 2 is adjusted to the portion of the planting grain culm. It is possible to shift only necessary parts when necessary for a typical lodging condition.

[0006]

As described above, for each of the multi-row raising cases 3 arranged corresponding to the multi-row planting grain culm, the transmission unit 5 arranged on the power transmission path for transmitting the power is used. When only a part of the culm row among the set cereal culms in the row is laid down, the raising chain 1 of the raising case 3 corresponding to the laid culm row is shifted to raise the culm. Since the action speed of the rug 2 can be changed only when necessary for the partial lodging conditions of the planted grain culm when necessary, the lodging grain culm may be damaged by the raising rug 2 or it may become entangled due to entanglement etc. The scraping and transport of the grain stalks are not hindered, and there is no need to shift the entire raising device 4 for a part of the lodging grain stalk row, so that the efficiency of the mowing operation can be improved.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 10 shows the overall structure of the combine, in which a traveling device 8 having a pair of left and right traveling rollers 7 traveling on the ground is provided below the chassis 6, and a feed chain 9 is mounted on the chassis 6. A grain tank 10 for threshing the grain culm supplied and sandwiched between the tanks, for selectively collecting the threshed grain and temporarily storing the grain, and a grain auger 11 for discharging the grain of the tank 10 out of the machine. The threshing device 12 provided is mounted and configured.

At the front side of the threshing device 12, planted grain culm is weeded, the weeded culm is raised, the caused culm is cut off, and the cut culm is put on the rear side. The harvester 13 which is transported to the feed chain 9 and transferred to the feed chain 9 is mounted on the front end of the undercarriage 6 so as to be able to move up and down with respect to the soil surface. An operating device 14 for controlling the operation of the combiner and an operating seat 15 for this operation are provided on one side of the reaper 13, and the Glen tank 10 is arranged behind the operating seat 15. 14
A cabin 16 that covers the vehicle and the operating seat 15 is provided, and the traveling device 8, the threshing device 12, the reaper 13, and the operating device 14 are provided.
The vehicle body 17 of the combine is constituted by the above method.

As shown in FIGS. 1, 2 and 3, the structure and the transmission mechanism of the mowing device 13 are fixed to the upper end of a traveling transmission case 18 mounted on the front end of the undercarriage 6. A cutting input case 20 rotatable up and down is mounted on a cutting stand 19.
And an input shaft 22 having an input pulley 21 fixed to the reaping input case 20, and a pipe-shaped input vertical case 23 extending downward from the case 20.
Is connected to a lower horizontal transmission case 24 provided over the entire width of a lower part of the reaper 13, and from the input shaft 22 via an input longitudinal axis 25 provided in an input vertical case 23, the lower part is connected to the lower part. The lower transmission shaft 24 is connected to a lower horizontal shaft 26 provided inside the horizontal transmission case 24 to be connected.

A pipe-shaped intermediate vertical case 2 extending obliquely upward and forward from near the left end of the lower horizontal transmission case 24.
7 is joined to the upper part of the mowing device 13 near the left end of an upper lateral transmission case 28 provided over the entire width thereof, and an intermediate longitudinal axis 29 provided in the intermediate longitudinal case 27 from the lower lateral shaft 26. Through an upper horizontal shaft 30 housed in the upper horizontal transmission case 28.

At the front end of the mowing device 13, seven weeds 31 for weeding six rows of planted grain culms are arranged so as to be close to the soil surface when the mowing device 13 is lowered. Raising case 3 with one pair of two rows at the center and one pair of two rows at the left and right sides, with the upper part facing obliquely rearward from the rear side of weeding body 31
And a plurality of raising lugs 2 attached to a raising chain 1 stretched inside each raising case 3 to constitute a raising device 4 capable of raising 6 sets of planted grain culms at a time. .

At the upper end of each raising case 3 of the raising device 4, there is provided a speed change section 5 containing a transmission gear or the like for changing the operating speed of the raising lug 2, and the speed change section 5 and the upper lateral transmission cable are provided. The lugs 28 are connected to each other by six pipe-shaped lug drive cases 32, and each of the transmission sections 5 is connected from the upper horizontal shaft 30 via a lug drive shaft 33 provided in each lug drive case 32. And the transmission chain 5
The driving sprocket 33a for driving the gears is configured to be capable of speed-change driving.

Two lug driving cases 32 are further extended downward from an appropriate position of the upper horizontal transmission case 28, and the left collecting shaft 34a housed in the lug driving case 32 is connected to the upper horizontal shaft 30. And the collection shaft 34a
In addition, a stock source collection device 35 for collecting and collecting the grain stem stock portion at the center position
Stock sprocket 3 for driving stock feed chain 36a
5a, and a sprocket 37a for driving a tip feed lug 38a of a two-stage tip collecting and feeding device 37 for collecting and feeding the tip side is fixed on the upper side of the tip sprocket 37a. A tip feed lug 38b of an upper / lower two-step tip collection device 37 for collecting and feeding the right side of a grain culm tip to the feed shaft 34b.
The sprocket 37b for driving the shaft is fixed to the upper and lower two stages.

A stock drive that drives a stock feed chain 36c of a stock feeder 35 that feeds a grain stem stock at the left side to a feed shaft 34c whose direction is changed from the middle of the intermediate longitudinal axis 29. The sprocket 35c is fixed to the shaft, and the sprocket 37c for driving the spigot feed lug 38c of the upper and lower two-stage spike collection device 37 for collecting the spike is mounted on the upper side of the sprocket 35c.
The shaft is fixed to the step.

A stock feed chain 36b of a stock feeder 35 for feeding the grain stem stock at the right side is attached to a feed shaft 34d protruding upward from near the right end of the lower horizontal shaft 26. The driving sprocket 35b to be driven is fixed to the shaft, and below the sprocket 35b,
The take-off sprocket 40 that drives the take-over transport chain 39 that takes over the cereal stem stock collected and conveyed by the respective stock-collecting / conveying devices 35 at the center and the left and right sides and further collects substantially rearward at the center is stopped. Configuration.

The driven sprockets 41a, 41c, 41 at the front end of each stock feed chain 36 at the central and left and right positions.
b, and on the lower side thereof, each of the scraping star wheels 42a, 42c, 42b for scraping the grain stem base portion, and on the upper side thereof, the scraping rug belts 43 are respectively stretched forward so as to be able to be scraped forward. I do. Each of the scraped star wheels 42a, 42
c, each star wheel 44 facing each other from 42b
a, 44c, and 44b are engaged with each other, and the front ends of the opposing upper rag belts 43 are opened in an eight-letter shape to form a pair of left and right rake sections A.

Below each raking unit A, a cutting blade device 45 for cutting the planted grain culm is divided into right and left, and a lower horizontal frame 46 fixed to the lower horizontal transmission case 24 over the entire width of the cutting device 13. The left and right cutting blades 45 are connected to both ends of the lower horizontal shaft 26 by left and right crank mechanisms 47 so as to be reciprocally movable left and right. The lower horizontal frame 46 is joined to each weeding rod 48 extending forward and having each of the weeding bodies 31 attached thereto. The reflected wave of ultrasonic waves is directed downward at an appropriate position of this weeding rod 48. And a cutting height sensor 49 for detecting the cutting height is provided.

The extension of the input shaft 22 on the side opposite to the input pulley 21 and the horizontal shaft 50 are meshed and linked by a gear.
From this horizontal axis 50, a spike supply sprocket 52 for driving a supply lug 51a for supplying the spike side provided in two upper and lower stages for adjusting the supply depth when supplying the conveyed grain culm to the threshing apparatus 12. And a supply chain 51b for supplying the stock unit.
A supply adjusting device 51 is constituted by interlockingly connecting a stock supply sprocket 53 for driving the feed control shaft 54 to a supply adjusting shaft 54 fixed to the shaft.

At an appropriate position on the rear side of the lower horizontal transmission case 24, one end of a left and right suspension arm 55 of a center-bend type which expands and contracts by raising and lowering the reaper 13 is rotatably supported.
The other end is connected to the front end of the chassis 6 by a pin, and between the lower side of the input vertical case 23 and the chassis 6.
A cutting upper and lower cylinder 56 that expands and contracts by hydraulic pressure and moves the cutting device 13 up and down is connected and configured.

The weed body 31 is brought close to the soil surface and the traveling device 8
The body 17 is moved forward to cut the planted cereal stem by the cutting device 13, and the raising device 4 is used at the time of cutting.
At the same time, the root portion of the cereal stem is sequentially raised from the root portion of the cereal stem toward the tip side, and at the same time, the root portion is raked by the rug belt 43 of each rake portion A. It is pinched by the wheels 42 and 44 and cut by a cutting blade device 45, and the cut root portion is sent to a stock feed chain 36 of each stock source collecting and feeding device 35,
The stock is transferred from each stock transfer chain 36 to the transfer chain 39 and transferred to the supply chain 51b of the supply adjusting device 51. Along with the stock base, the spike side is collected by the upper and lower two-stage spike feed lugs 38 of the upper spike collectors 37 and delivered to the supply lugs 51 a of the supply adjusting device 51.

In such a mowing operation, in the multi-row raising case 3 of the raising device 4 arranged corresponding to the multi-row planting grain culm, for example, a part of the multi-row grain culm row When only one of the lugs is lying down,
By transmitting the power transmitted to the transmission unit 5 through the transmission unit 3 through the transmission unit 5 to the raising sprocket 33a, and decelerating the raising chain 1 of the raising case 3 corresponding to the row of lodging grain culms, Since the speed of action of the raising rug 2 can be changed only when necessary for the partial lodging condition of the planted grain culm when necessary, the lodging grain culm is damaged by the raising rug 2 or the entanglement is caused. It is possible to improve the efficiency of the mowing work, because the scraping and transport of the grain stalks are not hindered by the like, and the entire raising device 4 does not need to be shifted for a part of the lodging grain stalk row. .

The transmission section 5 provided for each raising case 3 of the raising device 4 as described above can be applied to all the multi-row cutting combiners except for the double-row cutting. The transmission unit 5 may be provided, and any form may be used as long as the transmission unit 5 does not deviate from the gist of the present invention. Next, when harvesting,
A power steering lever 57 for raising and lowering the reaping device 13 with respect to the soil surface is disposed on one side of the operating device 14, and as shown in FIG.
A cutting position sensor 59 such as a potentiometer is fixed by a mounting frame 58a, and one end of an L-shaped rotating arm 60 is fixed to a rotating shaft 59a for adjusting the sensor 59. A long groove 60a in the left and right direction is provided on the upper surface, and a power steering lever 57 having a lower portion as a fulcrum is engaged with the long groove 60a. It is configured to be performed in the long groove 60a.

The left and right tilting of the power steering lever 57 is for causing the reaping device 13 to perform left and right steering.
The lever 57 is configured to return to the neutral position by a spring when the tilting operation force is released. A controller 61 is provided for controlling the operation of raising and lowering the cutting device 13 which pivots up and down about the cutting input case 20 by the tilting operation of the power steering lever 57, with the CPU being mainly arranged to perform arithmetic control. As shown in the figure, the cutting height sensor 49 and the cutting position sensor 59 are connected to the input side of the controller 61, and the cutting upper and lower cylinders 56 are hydraulically driven to the output side to raise and lower the cutting device 13. The proportional solenoid valve 62 for controlling the descending side and the unload valve 63 are connected to each other.

As shown in FIG. 6, the hydraulic circuit for operating the cutting vertical cylinder 56 by the proportional solenoid valve 62 includes a hydraulic pump 64 that switches the proportional solenoid valve 62 to switch the proportional hydraulic valve 62 through the check valve 65 to cut the vertical cylinder. Oil is fed to the ascending side or the descending side of the
Then, a pilot operation is performed through a proportional solenoid valve 62 to return the check valve 65 to the oil tank 66 through the reverse direction.

With these configurations, the power steering lever 5
7, the cutting position sensor 59 rotates via the rotating arm 60, and the output voltage of the sensor 59 increases and decreases according to the amount of forward and backward tilting of the lever 57. FIG.
For example, when the output voltage of the sensor 59 at the neutral position of the lever 57 is 2.6 V, the output to the proportional solenoid valve 62 is set to zero, and the sensor 59 at the backward tilting operation position of the lever 57 is set as shown in FIG. Output voltage is 2.6 ~
When the output voltage is 4.6V, the output is on the rising side with respect to the proportional solenoid valve 62. When the output voltage of the sensor 59 at the forward tilt operation position of the lever 57 is 2.6 to 0.4V, the proportional solenoid valve 62 is output. Output on the falling side.

In the relationship between the output voltage of the sensor 59 and the output of the proportional solenoid valve 62, for example,
9, the controller 61 measures the change speed of the output voltage when the output voltage is changed between 2.6 to 0.4 V in 0.7 seconds and when the output voltage is changed in 0.3 seconds. By changing the on-time of the proportional solenoid valve 62 to control the elevating speed, the proportional solenoid valve 62 can increase or decrease the elevating speed of the reaper 13 in proportion to the operating speed of the tilting operation of the lever 57. it can.

Further, as described above, in the apparatus which enables the raising and lowering speed of the mowing device 13 to be controlled in proportion to the tilting operation speed of the power steering lever 57, the mowing device 13 is moved up and down corresponding to the forward and backward tilting position of the lever 57. As shown in FIG. 8, for example, as shown in FIG. 8, the output voltage of the cutting position sensor 59 is changed from 2.6 V at the neutral position to 1.7 V at the x point by 0.3 seconds by the forward tilt operation of the lever 57 as shown in FIG. , The controller 61 sets 0.9 to the point x.
The on-time output of the proportional solenoid valve 62 was performed so that the output voltage of V became a change rate of 0.3 second, and the detection value of the cutting height from the soil surface by the cutting height sensor 49 changed to 1.7 V. At this time, by stopping the output to the proportional solenoid valve 62, the mowing device 13 can be moved up and down in accordance with the forward and backward tilting position of the lever 57.

Further, as described above, the raising and lowering speed of the mowing device 13 can be controlled in proportion to the tilting operation speed of the power steering lever 57, and the raising and lowering position of the mowing device 13 corresponds to the forward and backward tilting position of the lever 57. In the control-enabling control, in order to perform the raising / lowering speed control and the position control of the reaper 13 and to perform the position control from the neutral position of the lever 57, for example, as shown in FIG.
The cutting position sensor 5 is moved by the forward tilting operation of the lever 57.
9, when the lever 57 returns to the neutral position, the voltage becomes 2.6 V. Next, the mowing device 13 is further lowered to the output voltage of the sensor 59 of 1.7 V or less. When it is desired, the amount of forward inclination of the lever 57 needs to be increased, and the operability is deteriorated.

For this reason, when the output voltage due to the forward tilt operation of the power steering lever 57 is 1.7 V, the detection value of the cutting height sensor 49 is also input to the controller 61 at 1.7 V by the position control. Even if the lever 57 is input to the controller 61 at the neutral position of 2.6 V, the detection value of the cutting height sensor 49 of 1.7 V is prioritized and the lever 57 is moved from the neutral position of 1.7 to 0 to 1.7 V. .4V
Thus, the lowering control of the reaper 13 can be performed, so that the operability of the lever 57 can be improved.

As described above, the lifting / lowering speed control of the mowing device 13 in proportion to the tilting operation speed of the power steering lever 57, the raising / lowering position control of the mowing device 13 corresponding to the forward / backward tilting position of the lever 57, The output voltage at the neutral position of the lever 57 is controlled by a raising / lowering position control to control the cutting height 49.
When the tip of the weeding body 31 of the reaper 13 is 200 mm or less from the soil surface, the lever 5
Regardless of the elevating speed that follows the operating speed of the cutter 7, the lowering of the reaper 13 is performed at a constant low speed set in the controller 61, and the ascent and deceleration of the reaper 13 is performed by following the elevating speed of the lever 57 when ascending. It is possible to avoid a problem that the grass body 31 is pushed into the soil surface during the descending operation.

[Brief description of the drawings]

FIG. 1 is a side view showing the overall configuration of a reaper.

FIG. 2 is a plan view showing the entire configuration of the reaper.

FIG. 3 is a transmission mechanism diagram showing a power transmission path of the reaper.

FIG. 4 is a rear view showing an attached state related to a power steering lever.

FIG. 5 is a block diagram showing an automatic circuit for controlling the lifting / lowering action of the reaper.

FIG. 6 is a block diagram showing a hydraulic circuit for controlling a lifting / lowering action of the reaper.

FIG. 7 is a diagram showing a change in output voltage of a cutting position sensor due to operation of a power steering lever.

FIG. 8A is a diagram showing a change state of an output voltage by a cutting position sensor. (B) The diagram which shows the change state of the detection voltage by a cutting height sensor.

FIG. 9A is a diagram showing a change state of an output voltage by a cutting position sensor. (B) The diagram which shows the change state of the detection voltage by a cutting height sensor.

FIG. 10 is a side view showing the overall configuration of the combine.

[Explanation of symbols]

 1. Trigger chain 2. Raising lug 3. Trigger case 4. Raising device 5. Transmission section

Claims (1)

[Claims] 1. A raising device 4 in which a multi-row raising case 3 for driving and raising a raising lug 2 by a raising chain 1 in correspondence with a multi-row planting grain culm is arranged side by side with a front end. And a transmission unit 5 capable of changing the speed of the raising chain 1 in a power transmission path for individually transmitting power to the multi-row raising case 3.