JPH08252024A - Thresher of combined harvester - Google Patents

Abstract

PURPOSE: To prevent the third loss without depending on whether a machine body is carrying out reaping operation or turning operation. CONSTITUTION: This threshing apparatus is equipped with a driving type blocking member 34 capable of blocking a dust discharging port formed so as to face the end part of an oscillating and grading apparatus, the first detection sensor S1 for detecting whether the apparatus is carrying out reaping operation or in the turning step when reaping operation in one stroke is finished and the operation is being moved to the reaping operation being the following stage, the second detection sensor S2 for detecting the treated amount and a control means 23 for carrying out driving control of the blocking member 34 so as to block dust-discharging part when the first detection sensor S1 detects that the machine body is carrying out reaping operation and carrying out driving control of the blocking member 34 so as to make a dust discharging part smaller as the treating amount becomes smaller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine threshing device provided with a drive-type shield member capable of shielding a dust outlet formed at the end of a swing sorting device.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned combine threshing device, as shown in Japanese Patent Laid-Open No. 4-84825, the machine operation at the time of completing the one-step cutting operation and shifting to the next-step cutting operation is performed. A detection unit is provided to detect whether or not the vehicle is traveling, and when the detection unit detects that the aircraft is traveling,
There has been provided a control means for driving and controlling the shielding member so as to shield the dust outlet based on the detection information.

[0003]

According to the above-mentioned conventional structure, since the dust outlet is shielded by the shielding plate during the traveling of the machine body, the sorting wind is strong on the processed object which is a small amount during the machine body traveling. Even if it acts or the inertial force generated due to a sudden change in direction due to the traveling of the airframe acts on the processed material, it becomes difficult for the processed material to be discharged from the dust outlet. There is an advantage that the number loss can be prevented.

However, in the above-mentioned conventional structure, since the shielding member is controlled to be shielded only during the traveling of the body,
For example, when the sparse part of the planted grain culm in the field is cut and threshed, even if the sorting wind strongly acts on a small amount of low-density processed material in the rocking sorting case during the cutting operation, the dust outlet While it was open, the processed material was discharged from this dust outlet, and it was easy to cause No. 3 loss.

An object of the present invention is to reduce the No. 3 loss as compared with the conventional one.

[0006]

According to a first aspect of the present invention, there is provided a structure when the machine is in the middle of a mowing operation, or when the first mowing operation is completed and the next mowing operation is started. When a first detection sensor that detects whether the vehicle is traveling and a second detection sensor that detects the amount of processing are provided, and the first detection sensor detects that the aircraft is traveling, based on the detection information Then, the shielding member is drive-controlled so that the dust outlet is shielded, and the first body is in the mowing operation.
When the detection sensor detects, based on the detection information and the detection information of the second detection sensor, a control unit that drives and controls the shielding member such that the dust outlet becomes smaller as the processing amount is smaller. It is provided.

According to a second aspect of the present invention, in the first aspect of the invention, the first detection sensor is provided with a Karakoto wind adjustment mechanism for increasing or decreasing the air quantity of Karakoto, and the fact that the machine body is rotating. When it is detected, the control means controls the Karakoto style adjusting mechanism based on the detection information to reduce the Karakoto style.

According to a third aspect of the present invention, in the invention according to the first or second aspect, when the first detection sensor detects that the machine body is in a mowing operation, the detection information and the second detection are provided. The control means controls the Karato wind adjustment mechanism based on the detection information of the sensor so that the Karato air flow rate becomes smaller as the processing amount is smaller.

According to a fourth aspect of the present invention, in the invention according to the third aspect, the shielding member can be driven to be shielded via the Karakoto style adjusting mechanism, and the shielding member is linked to the Karakoto style adjusting mechanism. At the same time, a flexible mechanism is provided between the shielding member and the Karato wind adjustment mechanism, and the Karato wind adjustment mechanism operates in a state where the Karato wind amount decreases to a predetermined amount, and then the shielding member operates in the shielding direction. It is configured to be possible.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, a shield plate is provided extending to the left and right ends of the dust outlet, and the lower end portion of the shield plate is provided. In addition, the shielding member is formed by extending a plurality of rods downward at right and left at a predetermined pitch.

[0011]

According to the structure of claim 1, when the first detection sensor detects that the machine is traveling, the shielding member shields the dust outlet. Even if the sorting wind strongly acts on the processed material, or the inertial force generated due to a sudden change in direction due to the aircraft's traveling acts on the processed material, it will be difficult for the processed material to be discharged from the dust outlet. .

It is also important that the machine is in the middle of the mowing operation.
When the detection sensor detects, the shielding member is driven to shield, and the smaller the processing amount is, the smaller the dust outlet becomes.
For example, cutting and threshing sparse areas of planted culms in the field,
Even when a small amount of low-density processed material in the rocking sorting case is strongly affected by the sorting wind during mowing work, such as when traveling at low speed and mowing threshing, the treated material does not emit dust. Difficult to be discharged from the mouth.

According to the second aspect of the present invention, when the first detection sensor detects that the airframe is traveling, the control means controls the Karakoto wind adjusting mechanism based on the detection information to control the Karakoto wind volume. Therefore, it is possible to prevent the sorting wind from exerting a strong effect on the processed material which is running in a small amount in the airframe. As a result, it is possible to more effectively achieve the above-described first action by the configuration of claim 1 in which the processed material is less likely to be discharged from the dust outlet during the traveling of the machine body.

According to the third aspect of the present invention, when the first detection sensor detects that the machine body is being mowed, the smaller the processing amount is, the smaller the amount of Karako is.
It is possible to prevent the sorting wind from exerting a strong force on a small amount of low-density processed material in the rocking sorting case during the harvesting operation, as in the case of harvesting and threshing a sparse part of the planted grain culm in the field. As a result, it is possible to more effectively achieve the above-described second effect of the configuration of claim 1 in which the processed material is less likely to be discharged from the dust outlet during the mowing operation.

According to the structure of claim 4, since the shielding member can be shield-driven via the Karako-style adjusting mechanism and the shielding member is linked to the Karako-style adjusting mechanism, the shield member drive mechanism can be used. There is no need to newly install it, and the structure can be made compact and the manufacturing cost can be reduced. Further, since the accommodation mechanism as described above is provided between the shielding member and the Karako-style adjusting mechanism, when the shielding member starts to operate in the shielding direction, the Karasu-wind amount has already decreased to a predetermined amount. Alternatively, the above-described action by 3 can be surely exhibited.

According to the structure of claim 5, a part of the Karato wind can be escaped from between the plurality of rods extending to the lower end of the shielding plate, and the pressure of the Karato wind in the rocking sorting case can be released. It is possible to prevent troubles such as abnormally high and to smoothly perform the threshing process.

[0017]

As described above, according to the first aspect of the present invention, it becomes difficult for the treated material to be discharged from the dust outlet during the traveling of the machine body, and further, for example, the sparse portion of the planted grain culm in the field is cut and threshed. Even when a small amount of low-density processed material in the rocking sorting case is strongly affected by the sorting wind during the cutting operation, it is difficult for the processed material to be discharged from the dust outlet. No. 3 loss can now be prevented regardless of whether it is during work or traveling, and it was possible to reduce No. 3 loss compared to the past.

According to the constitutions of claims 2 to 4, the effect of the constitution of the above-mentioned claim 1 can be further improved, and according to the constitution of the claim 5, threshing processing can be carried out smoothly. As a result, workability can be improved in the configuration including the shielding member.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a self-removing combine. In this combine, a threshing device 3 is mounted on a machine body frame 2 having a pair of left and right crawler traveling devices 1, and a mowing pretreatment unit 5 having a vertical transport device 4 is connected to a machine body front portion so as to be able to move up and down. A boarding operation unit 6 is provided on the right side of the pre-mowing processing unit 5.

As shown in FIG. 2, the threshing device 3 feeds the grain culms cut by the pre-cutting processing section 5 to the feed chain F.
A handling chamber 9 having a handling barrel 8 rotatably driven around the longitudinal axis in the upper part so as to be handled while being conveyed backward at C.
Is provided to configure the threshing section, and a sorting section 11 for sorting the processed material leaking from the receiving net 10 stretched below the handling cylinder 8 is provided.

The sorting unit 11 swings and transfers the leaked material to the rear while sieving and sorting, and swinging and sorting the wastes to the outside of the machine through a dust outlet 17 at the rear end of the apparatus. Kara Mino 1 which supplies rearward sorting wind to the swing sorting device 12.
3. A tank (not shown) that collects the grains that have been sorted and leaked.
The screw-conveying type first-collection unit 14 that collects in the above, and the screw-conveying type second-collection unit 1 that collects the second item that drops downward and returns it to the upper side in the transfer direction of the swing sorting device 12.
5. The dust collecting fan 18 is configured to suck dust from above the swing sorting device 12 and discharge the dust out of the machine.

The rocking / sorting device 12 includes a rough sorting unit 20 which receives a processed material leaked from the handling chamber 9 by a chaff sheave 19 whose opening can be adjusted and swings and transfers it to perform rough sorting. An oscillating sorting case 16 is provided with a precise sorting section 21 for sorting the sorted products that have leaked out from the grain while swinging and transferring the sorted products into grain and a second grain. As shown in FIG. 6, the chaff sheave 19 is formed by arranging a plurality of chaff plates 19a, each of which is swingable and adjustable about a horizontal axis, in parallel, and each chaff plate 19a is integrally formed by an electric motor M1 via a wire. It is constructed so that it can be oscillated to change and adjust the leakage opening of the processed material. In addition, a Straw rack 22 for transferring straw chips, which extends rearward of the end of the chaff sheave 19 in the transfer direction of the processed material, is arranged so as to operate while receiving the sorting wind of the Kara 13 from below, and the waste straw is discharged. The dust is discharged from the dust outlet 17 to the outside of the machine body.

As shown in FIGS. 2 and 6, above the chaff sheave 19, the processed substance amount detection sensor S2 (second detection) for detecting the layer thickness of the treated substance on the upper part of the chaff sheave 19 as data of the threshing treatment amount. An example of a sensor) is provided, and based on this detection information, when the amount of processed material is large,
The electric motor M is used so that the opening degree of the chaff sheave 19 becomes wide.
1 is controlled, and when the amount of processed material is small, chaff sheave 1
A control device 23 (an example of control means) that controls each of the electric motors M1 so that the opening degree of 9 is narrowed is provided.

As shown in FIG. 2, FIG. 3 and FIG. 4, the Karato 13 has a Karato fan 24 inside a Karato case 25, and a belt-type continuously variable transmission 2 for adjusting the air volume of the Karato 13.
6 (an example of a Karafu wind adjustment mechanism) is provided, and based on the detection information of the processed material amount detection sensor S2, the belt-type continuously variable transmission device 26 is arranged so that when the processed material amount is large, the Karato wind is increased. The control device 23 is configured to execute control for driving the belt type continuously variable transmission device 26 so that the belt-type continuously variable transmission device 26 is driven so as to reduce the Karafu wind when the amount of processed material is small.

The belt type continuously variable transmission 26 is integrally rotated with the first pulley 27 which is driven and rotated by the power from the driving part and the karako fan 11 by receiving the rotational force from the first pulley 27 through the belt V. And a tension pulley 29 between the first and second pulleys 27 and 28, and the second pulley 28 is a split pulley.
The second pulley 28 is provided with a cam mechanism 30 for changing the winding diameter of the belt V by moving a pair of pulley members 28a and 28b forming the second pulley 28 closer to and apart from each other in the axial direction. The cam mechanism 30 is configured such that between the center of rotation of one pulley member 28a and the base end of the cam lever 31 that swings around the axis of the second pulley 28 via the electric motor M2. Further, there is formed a cam surface for moving the one pulley member 28a close to and away from the other pulley member 28b as the cam lever 31 swings. The connecting portion between the cam lever 31 and the electric motor M2 is such that a nut 32 is slidably fitted in a notch on the free end side of the cam lever 31 in the longitudinal direction of the cam lever 31 and is driven and rotated by the electric motor M2. It is configured to be screwed onto the tip of the screw 33. In the above-described configuration, the positional relationship of each component is set such that the Karafu wind decreases as the cam lever 31 swings toward the front of the machine and the Karafu wind increases as the cam lever 31 swings toward the rear of the machine. I am doing it.

A drive-type shield member 34 is provided for the dust outlet 17 so that the shield drive is controlled based on the work operation of the machine body.
Is provided. The control system of the shielding member 34 will be described below.

As shown in FIGS. 3 and 5, the shielding member 34
Is a horizontally long shielding plate 35 extending to the left and right ends of the dust outlet 17.
Is provided, and a plurality of bars 36 are provided at the lower end of the shield plate 35.
Each bar 36 extends downward at a predetermined pitch to the left and right so that each bar 36 is located between the rack plates 22a of the stroll rack 22, and the left and right ends of the shield plate 35 are connected via the support arms 44. It is attached to the side wall of the swing selection case 16 so as to be swingable around the horizontal axis, and is configured to be swingable between a substantially horizontal posture in which the dust outlet 17 is fully opened and a standing posture in which it is fully closed. The upper end of the support arm 44 is urged by the spring 37 in the direction in which the mouth 17 is fully opened. Even if it is in the fully closed state, it does not completely shut off the Karafu wind, but rather a configuration in which a plurality of rods 35 are extended to the lower end of the shielding plate 35 as described above, and a portion of the Karato wind is removed. Each bar 3
It is designed to escape from the gap between 6.

Then, a shield plate 35 is linked to the belt type unauthorized transmission device 26 via a cable W so that the shielding member 34 can be driven to be shielded by the belt type unauthorized transmission device 26, and a stock for detecting the presence or absence of a stalk The original sensor S1 (an example of a first detection sensor) is provided in the vertical conveyance device 4 in the pre-mowing processing unit 14 so that the machine is in the mowing operation or the mowing operation of one stroke is completed and the mowing of the next stroke is performed. It is configured to be able to detect whether or not it is in circulation when shifting to work by the presence or absence of a grain culm, and when the stock origin sensor S1 detects that the aircraft is in circulation, dust is discharged based on the detection information. When the stock element sensor S1 detects that the machine is in the cutting operation by driving the shielding member 34 and the belt type unauthorized transmission 26 so that the mouth 17 is shielded and the amount of Karafu wind is reduced. And the processing amount detection sensor Based on the detection information of No. 2, the control for driving the shielding member 34 and the belt-type continuously variable transmission 26 so that the dust discharge port 17 becomes smaller and the amount of Karafu wind becomes smaller as the amount of processed material is smaller. Is configured to be executable by the control device 23.

The shield plate 35 and the belt type continuously variable transmission 2
1 will be described. The structure for linking with 1 will be described. At the lower end of the first link member 38 attached to the swing selection case 16 so as to be swingable around the upper fulcrum on the front side of the second pulley 28, one end of the second link member 39 is provided. Pivotally connecting the second link member 3
The other end side of 9 is made to intersect with the cam lever 31 in the belt type continuously variable transmission 26, and the lateral pin 31a projecting from the side wall of the cam lever 31 is provided with the long hole 39a formed at the other end side.
And one end of the cable W is attached to the lower end of the first link member 38, and the spring 41 for absorbing stroke is inserted.
And the other end of the cable W is connected to the lower end of the support arm 44. The long hole 39
The interchange mechanism 42 is configured by the combination of a and the lateral pin 31a, and thus the shielding plate 35 and the cam lever 3 are
A flexible mechanism 42 is provided between the cam lever 31 and the cam 1, so that the shielding member 34 can be operated in the shielding direction after the cam lever 31 is swung in a state where the amount of the Karato wind decreases to a predetermined amount.

According to the above structure, when the stock sensor S1 detects that the airframe is traveling, the shielding member 34 shields the dust outlet 17, so that a small amount of processing during the airframe traveling is performed. Even if the sorting wind strongly acts on the object or the inertial force generated due to a sudden change in direction due to the airframe traveling acts on the object, the object is not discharged from the dust outlet 17. Can be prevented.

Further, when the stock sensor S1 detects that the machine is in the process of mowing, the amount of Karato wind is controlled based on the detection of the amount of processed material, and the shielding member 34 is controlled to be shielded. The amount of Karafu wind decreases,
Moreover, since the dust discharge port 17 becomes smaller, for example, when performing threshing and threshing on a sparse part of a planted culm in a field, or when traveling at a low speed to perform threshing and threshing, a swing sorting case It is possible to prevent a small amount of the low-density processed material in 16 from being blown by the sorting air, and the processed material from being discharged from the dust outlet 17.

[Other Embodiments] As shown in FIG. 7, the lower end of the shielding member 34 is attached to the rear end of the swing arm 43 of the balance swing type disposed below the dust outlet 17. The dust discharge port 17 may be configured to be closed from the lower side toward the upper side by engaging and connecting via the long hole 43a.

A sensor for detecting the layer thickness of the grain culms sandwiched and conveyed by the feed chain FC may be used as the processed material amount detection sensor S2.

A sensor detects a change in the position of an operating lever operated when the machine body is rotated to the left or right, and the machine body is in the mowing operation, or the mowing operation of one stroke is completed and the mowing operation of the next stroke is completed. It may be configured to detect whether or not the vehicle is traveling during the transition to.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of the front part of the combine.

[Fig. 2] Vertical side view of the threshing device

FIG. 3 is a partially cutaway side view showing a linking structure between Kara and the shielding member.

[Fig. 4] Vertical front view of Kara Minoh

FIG. 5 is a rear view in vertical section of the structure around the dust outlet.

FIG. 6 is a vertical cross-sectional side view showing a control system for adjusting the opening degree of the chaff sheave.

FIG. 7 is a vertical sectional side view of another embodiment.

[Explanation of symbols]

 12 Swing Sorting Device 13 Kara-mitsu 17 Dust-exhaust Port 23 Control Means 26 Kara-mino-style Adjusting Mechanism 34 Shielding Member 35 Shielding Plate 36 Bar S1 First Detection Sensor S2 Second Detection Sensor 42 Flexible Mechanism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masami Nakatani 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Innovator, Yoshinobu Kawamoto 64, Ishizukita-machi, Sakai City, Osaka Manufacturing Kubota Sakai Co., Ltd. In-house (72) Inventor Susumu Onishi 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Inventor Tetsuji Nagata 64, Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Inventor Masaru Ando 64 Ishizukita-machi, Sakai-shi, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Inventor Kiyoshi Tomiga 64 Ishizu-kitamachi, Sakai City Osaka Prefecture (72) Inventor Yoshitada Nakamura Sakai, Osaka Prefecture 64 Ishizukita-machi, Shizuoka Kubota Sakai Plant

Claims (5)

[Claims] 1. A combine threshing device provided with a drive-type shielding member (34) capable of shielding a dust outlet (17) formed facing a terminal end of an oscillating sorting device (12). , The first detection sensor (S1) for detecting whether the machine is in the mowing operation or in the traveling when the mowing operation of one stroke is completed and the mowing operation of the next stroke is completed, and the processing amount And a second detection sensor (S2) for detecting the fact that the first detection sensor (S1) detects that the machine is traveling, the dust outlet (17) is detected based on the detection information. When the first detection sensor (S1) detects that the airframe is being mowed by driving and controlling the shielding member (34) so as to be shielded, the detection information and the second detection sensor (S).
Based on the detection information of 2), the combiner is provided with a control means (23) for driving and controlling the shielding member (34) so that the dust outlet (17) becomes smaller as the processing amount becomes smaller. Threshing equipment. 2. A Karatsu-maze wind adjusting mechanism (26) for increasing / decreasing the air volume of the Kara-mitsu (13) is provided, and when the first detection sensor (S1) detects that the aircraft is moving, the detected information is included in the detection information. The threshing device for combine harvesters according to claim 1, wherein the control means (23) controls the Karakoto wind adjustment mechanism (26) to reduce the Karakoto airflow amount. 3. The first means that the aircraft is in the cutting operation
When the detection sensor (S1) detects it, the control means (23) controls the Karatsubasa style adjusting mechanism (26) based on the detection information of the detection sensor and the detection information of the second detection sensor (S2), and the processing amount. The threshing apparatus for combine harvesters according to claim 1 or 2, wherein the smaller the amount of Karafu, the smaller the amount of Karato. 4. The shielding member (34) is linked to the Karakoto style adjusting mechanism (26) so that the shielding member (34) can be driven to be shielded via the Karakoto style adjusting mechanism (26). Member (34) and Karako style adjustment mechanism (26)
A flexible mechanism (42) is provided between the shielding member (34) and the shielding member (34) so that the shielding member (34) can operate in the shielding direction after the Karatsuboshi adjusting mechanism (26) operates in a state in which the amount of the Karatsuboshi air decreases to a predetermined amount. The threshing device for combine harvesters according to claim 3, wherein 5. A shield plate (35) is provided extending to the left and right ends of the dust discharge port (17), and a plurality of rods (36) are provided at the lower end of the shield plate (35) downward at right and left at a predetermined pitch. The shielding member (34) is extended to the above to form the shielding member (34).
A threshing apparatus for combine harvesters according to any one of 1 to 4.