JP2000092958A - Grain culm supply control apparatus for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a problem in which in a conventional automatic threshing depth control apparatus consisting of a threshing depth adjuster and a supply adjuster, the supply adjuster can not adjust supply in steps corresponding to the height of supplied grain culms in dealing with extremely short grain culms. SOLUTION: A reaping treatment apparatus 3 is vertically liftably arranged at the front part of a traveling vehicle 2 on which a thresher 1 is loaded. The reaping pretreatment apparatus is equipped with a series of grain culm transporting apparatuses in the order of a front transporting apparatus 4, a threshing depth adjuster 5 and a supply adjuster 6 from the transportation starting end. The threshing depth adjuster is connected to an actuator M1 for control adjustment and the supply adjuster to an actuator M2 for control adjustment. The reaping pretreatment apparatus 3 is equipped with culm length detecting means S and a controlling means C for operating the actuator based on detected information. A sensor related to the control of the supply adjuster among the culm length detecting means is constituted of plural sensors S1 and S2 for detecting culm length in steps.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine corn stalk supply control device, and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, combine harvesters have been provided with an automatic control device for the handling depth in order to cope with the length of the grain culm to be cut and threshed. A configuration is adopted in which the handling position between the handling cylinder and the grain stalk ears is adjusted to a position with a high threshing efficiency while changing and adjusting the size. And the automatic control device of the handling depth equipped in this type of combine is designed to handle extremely short culms, for example, ultra-short culms associated with cutting and threshing work at the ridge (headland). In addition, a supply adjusting device is provided in addition to the handling depth adjusting device.

[0003]

An automatic handling depth control device provided in a conventional pre-cutting device comprises a handling depth adjusting device for adjusting and controlling a handling depth adjusting chain according to a grain stalk length.
The grain culm inherited from the handling depth adjusting device is further configured to be able to cope with a grain culm of an ultra-short culm by a supply adjusting device for adjusting the grain culm to the deep handling side.

[0004] However, the above-described supply adjusting device is
There was a problem that it was not possible to adjust stepwise according to the grain culm length to be supplied, and it was limited to two positions, a standard position and a deepest position.

[0005]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. In other words, a mowing pre-processing device 3 is provided at the front of the traveling vehicle body 2 on which the threshing device 1 is mounted so as to be able to move up and down freely. depth adjustment device 5, a series of culms conveying device is provided in the order of supply regulation device 6, the threshing depth adjustment device 5 and actuator for each regulatory control of the supply regulating device 6 - to motor M _1, M ₂ The cutting pre-processing device 3 is further provided with a culm length detecting means S for detecting a grain culm length, and the actuator M ₁ , based on detection information from the culm length detecting means S, in the configuration in which the control unit C to operate the M ₂ is provided, the culm length sensor relating to the control of the supply regulating device 6 among detecting means S comprises a plurality of sensors S ₁ for detecting the culm length for each stage, S ₂ Combines characterized by being composed of It is obtained by the culms supply controller.

[0006]

As described above, the present invention is configured as described above, so that the supply adjusting device performs stepwise supply control in accordance with the grain culm length supplied within the short culm range. It has the feature that it can solve the problem of the mold and can respond finely with high precision.

[0007]

Embodiments of the present invention will be specifically described below with reference to the drawings. First, the configuration will be described. As shown in FIG. 2, the traveling vehicle body 2 is provided with a crawler 7 molded from a rubber material, and is configured to be able to travel without sinking not only in dry fields but also in wet fields. The threshing apparatus 1 has a feed chain 8, a handling room with a handling drum 9 mounted on the upper side, a sorting room on the lower side, and a threshing and sorting of the supplied harvested grain culm. It is mounted on the vehicle body 2.

The auxiliary feed chain 10 is shown in FIG.
As shown in the figure, the start end is wound around the transmission sprocket 11 transmitted from the feed chain 8, and the end is extended to near the supply port to the handling chamber. The cereal stems inherited from the supply control device 6 described later are supplied to the handling room in cooperation with the feed chain 8 or alone.

Next, as shown in FIGS. 2 and 3, the pre-cutting device 3 includes a support table 12 provided at a front portion of the traveling vehicle body 2.
In addition, the rear part of the cutting frame 13 extending downward and forward is pivotally connected up and down freely, and the cutting frame 13 is equipped with a cutting device 14 and each grain culm conveying device described later. ing. That is, the pre-cutting device 3 comprises a weed raising rod 16 with a weeding rod 15 at the lower front end and an inclined shape behind it.
A cutting device 14 in the lower rear portion, and a scraping transfer device 17 and a front transfer device between the cutting device 14 and the starting ends of the feed chain 8 and the auxiliary feed chain 10 described above. The device 4, the handling depth adjusting device 5, and the supply adjusting device 6 are arranged so as to be capable of successively transferring the grain culm, and are attached to the above-mentioned cutting frame 13 so as to be capable of transmission.

First, the scraping / conveying device 17 is shown in FIGS.
As shown in the figure, the upper part is composed of a lower scraping wheel 17a and an upper endless strip 17b, and is provided above the cutting device 14 for each cutting grain culm row, and stalks and transports the grain stem backward. It has a configuration. The front transfer device 4 is composed of a stock transfer chain and a head transfer lug. The start end of the front transfer device 4 is faced to the end of the scraping transfer device 17 so as to be able to be inherited. And the left and right transported grain culms join at the end.

[0011] The spike transport lug shown in the embodiment,
One side, which is provided in a plan view from the right side of the front part to the starting end side of the feed chain 8 in the traveling direction, extends to the rear part of the pre-cutting device 3, and conveys the culm ear part in a continuous state. Configuration. Next, the handling depth adjusting device 5
As shown in FIG. 2 and FIG. 3, it is composed of a transport chain and a holding rod, as is conventionally known, so that the starting end can be inherited by the end of the front transporting device 4 to the root of the transported culm. It is provided so as to face, and extends rearward and upward so that the terminal end faces the start end of the supply adjusting device 6 described later. The handling depth adjusting device 5 has a configuration in which the start end is pivotally connected to the cutting frame 13 and the end side swings up and down along the culm direction of the transported culm. Handling depth control motor M ₁ (actuator M ₁
Is equivalent to The same applies hereinafter) is provided on the upper side at a position near the handling depth adjusting device 5 in the embodiment.
8 and is provided so as to be interlocked with the handling depth adjusting device 5 via the controller 8 and is driven and operated based on an operation signal output from a controller C (corresponding to control means C; the same applies hereinafter) to be described later. It is configured to perform depth control.

Next, the supply adjusting device 6 is shown in FIGS.
As shown in the figure, the feeding chain 6a and the holding rod 6b are provided so as to hold and transport the cereal stalks.
Auxiliary feed chain 10
And feed to the starting end of the feed chain 8 to adjust the supply. That is, the supply adjusting device 6 is a drive which is mounted on the upper surface of the integral transmission box 19 located on the auxiliary feed chain 10 side from the base of the cutting frame 13 in plan view (see FIG. 3). Sprocket 2
0, a rolling wheel 22 mounted on a movable chain rail 21 for guiding the supply side of the supply chain 6a from the inner surface, and a tension roller 2 having a tension function located in front of them.
3 and the supply chain 6a is wound.

The movable chain rail 21 guides the transfer side of the supply chain 6a from the inner surface as described above, and is provided in front of a fixed supporting arm which extends obliquely forward from the transmission box 19 and extends. The auxiliary feed chain 1 is provided so as to be rotatably supported on the front end of the vehicle.
It is configured to be able to move far and near in the direction of the stem relative to the starting end of the zero.

The supply control motor M ₂ (corresponding to the actuator M ₂ ; the same applies hereinafter) is provided by the supply control device 6.
And is connected to the movable chain rail 21 via a lot 24, and is driven based on an operation signal output from a controller C to perform supply adjustment control. The mowing pre-processing device 3 configured as described above is provided with a mowing elevating cylinder-2 that expands and contracts by a hydraulic device.
By 5, the structure is configured to move up and down between the normal work position in the lower part and the non-work position in the upper part, and the intermediate position is the high cutting position.

Next, each detecting means and the micro computer
A controller C using a table will be described.
First, the position detecting sensor S ₆ are potentiometers - data - available to reaper frame the - reaper so can measure the height position of the preprocessing device 3 reaper detects the rotational angle of the arm 13 frame - beam 1
3 is provided at the rotation fulcrum portion at the rear. The front grain culm sensor S ₅ -and the rear grain culm sensor S ₅ -are provided at the low position on the back side of the grain culling device 16 and the cover of the tip carrying lug of the front carrying device 4 extended to the rear. It is provided at each of the lower positions, and is configured to detect the presence or absence of a transported grain culm at a start end portion and an end portion of the transport route.

The culm length detecting sensors S ₁ and S ₂ (culm length detecting means, the same applies hereinafter) are provided on the back side of the cereal culm raising device 16 in two upper and lower stages so that the culm length of the transported cereal culm can be detected. . As shown in FIG. 3, the culm length detection sensors S ₁ and S ₂ are provided on both left and right sides of the front conveying device 4 arranged so that the harvested grain culm merges to the center from both right and left sides. The culm length of the transported grain culm can be detected stepwise. And the culm length detection sensors S ₁ and S ₂
Has a configuration in which control is given to the uncut culm side (left) of the left and right sensors with priority (in the controller C).

Next, the head sensor S ₃ and the stock sensor S
₄ (the culm length detecting means, the same applies hereinafter) is provided by hanging from the inverted U-shaped coupling machine frame 26 located above the cover of the tip conveying lag extended to the rear as described above onto the conveying passage of the grain culm,
It is designed to detect the culm length during transportation. The controller C is a control means using a microcomputer. Basically, each sensor is connected to an input side to input detection information, and information stored in advance is stored. Based on the input information from the sensors and the sensors, the operation of the motors M ₁ and M ₂ connected to the output side is controlled while controlling the handling depth and supply.

That is, the controller C includes, on the input side, culm length detection sensors S ₁ and S ₂ , a head sensor S ₃ and a stock sensor S ₄ , a front grain culm sensor S ₅ − and a rear grain culm sensor S ₅ −.
, Connects the position sensor S _6, other clutch sensor S ₇ reaper, and threshing clutch sensor S _8, a vehicle speed sensor S ₉ respectively connected. The controller C is provided with a handling depth control motor M ₁ and a supply control mode on the output side.
Connecting the data -M _2.

[0019] Then, threshing depth control motor - motor -M ₁ is controlled based on detection information of the tip sensor S ₃ and the strain based sensors S _4, tip tip sensor is basically grain稈穂portion S ₃ and stock news positions passing between the original sensor S ₄ - Toraruzo - it is configured to determine an optimum threshing depth position as emissions. The supply control motor - motor -M ₂ is culm length detection sensor S _1, S
Is controlled based on the detection information and _2, grain tips of稈穂portion is driven deep threshing side when not reach the culm length detection sensor S _1, when the culm length detection sensor S ₂ is in the detection state,
The supply adjusting device 6 is controlled so as to be driven to the shallow side. Note that the culm length detection sensors S ₁ , S
₂ is configured to operate only when the culm is shorter than the set reference value.

Another Embodiment 1 Another embodiment 1 relates to a transmission of a cereal stem raising device, and FIG.
A description will be given based on FIG. First, as shown in FIG. 4, the raising support pipe 30 has a lower portion having a lower mowing transmission cable.
A transmission shaft 32 is connected to the front end of the transmission shaft 31 and is connected to the front end thereof. The transmission case 32 is
As shown in FIG. 5, a transmission shaft 34 and a raising shaft 35 are provided on a shaft, and the transmission shaft 34 is connected to the raising and transmission shaft 33 so as to be able to transmit, and the raising shaft 35 is extended laterally outward. Then, each grain stem raising device 36 is configured to be transmitted. The transmission mechanism is provided with a three-stage transmission gear of a large gear 37, a middle gear 38, and a small gear 39, which is freely slidably mounted on the transmission shaft 34, and meshes with the small gear 40 and the middle gear 41, respectively. , The transmission gears of the large gear 42 are raised and axially mounted on the shaft 35. Note that the three-stage transmission gear of the large gear 37, the middle gear 38, and the small gear 39 is configured to be able to perform a shift switching operation by an external operation lever 43.

Another embodiment 1 is as described above.
Although the configuration is simple, there is an advantage that the raising speed can be selected according to the degree of lodging of the grain stalk and the vehicle speed. Another Embodiment 2 Another embodiment 2 relates to a supporting device of a grain stalk raising device, and FIG.
This will be described with reference to FIGS.

First, in FIG. 6, the raising support pipe 50 is connected and supported at its lower part to a cutting power transmission case (not shown), and is extended upward to connect a transmission box 51. 52 are installed. And the transmission box 51
The bearing supports a transmission shaft 54 to which a speed change pulley 53 is attached outside, and is connected to the raising transmission shaft 52 so as to be able to transmit. Then, the stepped transmission 55 is connected to the transmission box 51.
And is detachably connected to the transmission box 51 by a connecting member 56.

In this case, when connecting the upper and lower end surfaces to the stepped transmission 55 and the transmission box 51, the connecting member 56 is fixedly connected by knock pins 57 and 57 'for positioning. The stepped transmission 55 is provided with a plurality of speed change gears 58, and the speed change gear 6 is provided outside the speed change shaft 59.
0 is attached to the shaft. Then, the speed change pulley 60
The speed change pulley 53 and the speed change pulley 53 are connected to each other by a belt so as to be capable of transmission, so that a continuously variable speed change is possible.

The rotation sensor 61 is shown in FIGS.
As shown in FIG.
The portion extending to the opposite side of the rib 60) includes a gear-shaped rotating body 62.
, And a detection unit 63 composed of a magnetic sensor is provided outside the shaft to detect the rotation speed. Another embodiment 2
Is configured as described above, so that the stepped transmission 5
5 is a connecting member 56 and positioning knock pins 57, 5
Since the position is reliably determined by 7 ', the relational position is not deviated, and there is no problem that the belt wound between the speed change pulley 60 and the speed change pulley 53 is twisted.

Further, the rotation sensor 61 can be widely used as a detection signal for various controls by detecting the rotation speed, but has an advantage that the structure is simple and the cost can be reduced. . FIG. 7 and FIG.
At 0, reference numeral 65 denotes a transmission cover, which is constituted by a perforated plate. In this case, the speed change pulley 60 and the speed change pulley 53
Is covered with the transmission cover 65 and further covered with the mowing side cover, but since the inside is a perforated plate, even if heat is generated, no heat is trapped.

Next, the operation will be described. First,
Start the engine, cut the clutch and threshing clutch
Run while driving the machine to transmit the rotating parts of the aircraft.
When the traveling vehicle body 2 is operated for forward traveling, the controller C
Cutting clutch sensor S₇, Threshing clutch sensor S₈, Vehicle speed
Sensor S ₉Work start signals are input from the
Then, control operation starts.

When the combine starts harvesting and threshing in this way, the culm in the field is replaced with the weeding rod 1 at the lower front end.
5 and then the cereal stem raising device 16
Is raised from the lying state to the upright state by the raising action, the root of the stock reaches the reaper 14 and is cut off, and is squeezed by the action of the scraping wheel 17a and the scraping endless belt 17b to be squeezed. 4 and sequentially conveyed upward continuously at the rear.

A large number of rows of the culm are collected, conveyed by the right and left front conveying devices 4 and merged at the rear, and successively transferred from the handling depth adjusting device 5 to the supply adjusting device 6 in a continuous state. The feed reaches the starting end of the feed chain 8 and is supplied to the threshing apparatus 1. And, as for the cereal stem,
While being conveyed while being clamped by the doughen 8, the spikes are threshed by the rotating handling cylinder 9 in the process of being inserted into the handling chamber and passing therethrough. And the threshing processed product,
It reaches the lower sorting room and is subjected to sorting by the action of the sorting wind and the swing sorting device.

As described above, the combine continuously performs harvesting and threshing work, harvests the selected threshed grains, and collects and stores them in the Glen tank. Now, as described above, when the cutting and threshing operation is continuously performed, the pre-cutting device 3
Typically is held at the height of the working position a, the position is a position sensor S ₆ control - are input to the La C. The transported grain culm is detected and input from the front grain culm sensor S ₅ -and the rear grain culm sensor S _5- , respectively.

Then, the handling depth adjusting device 5 receives the detection information from the head sensor S ₃ and the stock sensor S ₄ into the controller C, and operates based on the operation signal output from the controller C based on the information. threshing depth control motor - motor -M ₁ is controlled actuated, automatically threshing depth through the communicating rod 18 is adjusted. In this case, controller - La C determines the most suitable threshing depth positions positions passing between the tip position pike sensor S ₃ and the strain based sensors S ₄ of the conveyor culms,扱深in that position The adjustment control is performed so that the adjustment position of the adjustment device 5 is adjusted.

During such an operation, the feed adjusting device 6 is in a standby position without control since the grain stalk length exceeds the reference value. It acts to pass the inherited cereal stem to feeden 8. Next, when the traveling vehicle body 2 reaches the ridge of the field and moves to cutting of the headland, the cutting / elevating cylinder is moved in order to prevent the tip of the weeding rod 15 from colliding with the ridge rising at the end of the field. 25, the cutting pre-processing device 3 is moved to the high cutting position while moving up to the high cutting position.

Then, the controller C sends a signal from each sensor.
Based on input detection signal, compare with reference value
It will continue to control the handling depth while
When the cultivation becomes extremely short after moving to high cutting, the handling depth adjusting device 5
Then it can not cope. Therefore, the supply adjusting device 6
Is the handling depth adjusting device 5 (it has reached the deepest handling position)
At the same time, the adjustment control is started. In this case, the controller
C is a culm length detection sensor S ₁, S_TwoDetection information input from
Is shorter than the reference value (60 cm in the example)
When judging that the culm length, the handling depth adjusting device 5 and the supply adjusting device
The control by both devices of the apparatus 6 is performed simultaneously.

Thus, the controller C has a grain stalk length.
Handles signals that are extremely short and are adjusted to the deepest
Depth control motor M₁And adjust the length of the culm.
Outgoing sensor S₁, S_TwoWhen the detection information is input from
Supply control motor M _TwoAlso output operation signals
You. Therefore, the feed adjusting device 6 has an extremely short cereal stem length.
Within the area that has become fine,
The supply is adjusted while responding in this way.
Supply at only two points, the reference position and the deepest position
The control is more suitable for the actual situation than that of the control.

In this case, the supply adjusting device 6 adjusted to the deep handling position inherits an extremely short cereal culm from the end portion of the handling depth adjusting device 5 adjusted to the deep handling side. , And further adjusted to the deep handling side to adjust the auxiliary feed chain 10
At this time, short cereal stalks whose roots do not reach the clamping position of the feeder chain 8 are supplied to the auxiliary feeder chain 10.
All culms are fed into the handling room from the supply side as it is.

When one step of the cutting and threshing operation is completed as described above, the controller C sets the rear grain culm sensor S _5-
Determines that the processing is completed by detecting that the grain culm has disappeared, and returns the handling depth adjusting device 5 and the supply adjusting device 6 to the shallow handling position with a certain time delay to perform the control action. It is completed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control configuration according to an embodiment of the present invention.

FIG. 2 is a side view of the embodiment of the present invention.

FIG. 3 is a plan view of the embodiment of the present invention.

FIG. 4 is a side view of another embodiment 1 of the present invention.

FIG. 5 is an exploded front sectional view of another embodiment 1 of the present invention.

FIG. 6 is an exploded front sectional view of another embodiment 2 of the present invention.

FIG. 7 is a side view of another embodiment 2 of the present invention.

FIG. 8 is an exploded perspective view of another embodiment 2 of the present invention.

FIG. 9 is a side view of another embodiment 2 of the present invention.

FIG. 10 is a rear view of another embodiment 2 of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Threshing device 2 Running body 3
Cutting pretreatment device 4 Front transfer device 5 Handling depth adjustment device 6
Supply regulation device C control means M _1, M ₂ actuator - data S _1, S _2, culm length detection means.

Claims (1)

[Claims] 1. A cutting pre-processing device 3 is provided at the front of a traveling vehicle body 2 on which a threshing device 1 is mounted so as to be able to vertically move up and down. 4, a series of grain stalk conveying devices are provided in the order of the handling depth adjusting device 5 and the supply adjusting device 6, and the handling depth adjusting device 5 and the supply adjusting device 6 are each provided with an actuator M ₁ for control adjustment, provided to connect to M _2, further wherein the cutting the preprocessing device 3, provided with culm length detecting means S for detecting a grain稈丈, on the basis of the detection information from該稈length detecting means S actuator - data In the configuration provided with the control means C for operating M ₁ and M ₂ , among the culm length detecting means S, the sensors related to the control of the supply adjusting device 6 include a plurality of sensors S ₁ for detecting the culm length for each stage. , Konbai, characterized in that is composed of S ₂ Corn stalk supply control device.