JPH08294321A - Combine harvester - Google Patents

Abstract

PURPOSE: To provide a combine harvester operable while automatically preventing defective threshing when reaping stem culms irrespective of their length. CONSTITUTION: A threshing chamber 24 is provided with dust feed valves 30a both on the opening and closing sides of the chamber so as to be controllable by an electric motor M. These valves 30a guidingly act on threshed products conveyed spirally onto the rear end side of a threshing cylinder owing to its revolution to alter their spirally conveying direction to change their residence time in the threshing chamber 24. When a reaping pretreatment device is switched between a short culm treatment mode so as to feed the whole reaped stem culms into the threshing chamber 24 by cutting planted stem culms at the plant foot and a long culm treatment mode so as to feed only the ear tip side portion of the planted stem culms into the threshing chamber 24, a treated product conveyance control means 40 automatically operates the electric motor M in response to the information from a treatment mode detective means, thereby automatically controlling the dust feed valve 30a both on the opening and closing sides.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting pretreatment device for cutting planted stalks and supplying them to a threshing section. It is provided so that it can be switched between the first processing mode and the second processing mode in which only the tip side portion of the planted stem culm is supplied to the threshing section, and the threshing section is supplied from the pre-cutting processing apparatus. The present invention relates to a combine configured so that the whole threshing target object is introduced into a handling chamber and is transferred to a rear end side of the handling barrel by a handling barrel that rotates to perform a handling process.

[0002]

2. Description of the Related Art The combine harvester described above can be used for cutting after cutting by switching the pre-mowing treatment device between the first treatment form and the second treatment form depending on the culm length even if the culm lengths of the planted stems differ. It is intended to allow work to be carried out while making it possible to cultivate advantageously, and to work while making threshing treatment advantageous. That is, when only the tip side part of the planted stem culm is cut off and the culm part remains in the plant part,
When the cultivating work is performed later, the barley portion extending from the stock portion becomes an obstacle to the work. If the amount of threshed products to be introduced into the handling room is too small, the threshing performance is deteriorated because the handling action due to the interlocking of the threshed products and the working efficiency of the handling barrel are reduced. Further, even if the amount of the threshing processed product introduced into the handling room is too large, the threshing processed product is clogged and the threshing performance is deteriorated. Therefore, in the case of planted stem culms whose culm length is standard or shorter,
The cutting pretreatment device is operated in the first processing mode. As a result, the planted culm is cut off at the plant base and only the plant part remains in the field, making it easier to cultivate later, and both the tip side part and the culm side part of the cut culm can be stored in the handling room. Since the amount of threshing material in the handling room is introduced to an appropriate level, threshing processing is performed well. Then, in the case of a planted stem culm having a culm length longer than the standard, the cutting pretreatment device is operated in the second treatment mode. Then, only the tip side part of the planted culm is introduced into the handling room, so that the planted culm is cut off at the base of the plant and the whole cut culm is introduced into the handling room. It is possible to work while preventing the threshing process from becoming clogged due to the reduced amount of threshing products. If only the tip side part is introduced into the handling room, the amount of threshed material in the handling room will be smaller than that in the case where both the tip side part and the stem side part of the stem culm with a standard length or shorter than that are introduced into the handling room. It may decrease. In addition, even if the amount of threshed products introduced into the handling room is small and the handling action due to the interlocking of the threshed products and the working efficiency of the handling cylinder are reduced, the time for the threshed products to stay in the handling chamber is increased. If the time for which the threshing treatment is performed is increased, the threshing shortage caused by the insufficient amount of the threshing treatment product can be compensated for by increasing the handling treatment by increasing the retention time. For this reason, conventionally, it has been made possible to adjust the dust transfer valve that guides the threshing processed material so that it is transferred to the rear end side of the processing cylinder by the rotating force of the processing cylinder, between the opening side and the closing side with respect to the processing material transfer direction. It is equipped in the handling room and is configured to manually adjust the opening of the dust sending valve. When the cutting pretreatment device is operated in the first processing mode, the threshing material amount in the handling room becomes an appropriate amount. Therefore, by adjusting the dust delivery valve to the open side and adjusting the time that the threshing processed material stays in the handling room to a short time side, it is possible to work while preventing the threshing processed material from being handled and processed unnecessarily. When the pretreatment device is operated in the second treatment mode, it is introduced into the handling room by adjusting the dust sending valve to the closing side and adjusting the time during which the threshed material stays in the handling room for a long time. Even if a relatively small amount of threshed products are processed It had to be able to work while preventing the foot.

[0003]

Conventionally, when the culm length of the culm to be harvested is changed and the treatment mode of the pretreatment device is changed, the dust feeding valve is adjusted to the open side or the closed side each time. It had to be troublesome. The purpose of the present invention is to
Long and short culm It is to make it possible to handle any planted stem culm properly without any excess or deficiency, and to make it easier to work without any special adjustment work. An additional object of the present invention is to enable work to be performed without leaving the culm side part in the plant part even when only the tip side part is introduced into the handling room.

[0004]

In order to achieve the object of the present invention, the present invention provides a combine valve described at the beginning of a dust delivery valve for guiding a threshing material transferred to the rear end side of the handling cylinder by the handling cylinder. A detection means that is provided in the handling chamber so as to be adjustable between an open side and a closed side with respect to the processed material transfer direction, and that detects whether the pre-mowing processing device is in the first processing mode or the second processing mode. Further, when the detection means is in the detection state of the first processing mode, the processed matter transfer control means is based on the information from the detection means while the processed matter transfer control means is provided to open and close the dust feed valve. Automatically operates the dust delivery valve to the open side, and the detection means causes the second
When the processing form is in the detection state, the processing product transfer control means is placed in a state in which the processing product transfer control means automatically operates the dust feed valve to the closing side based on information from the detection means. It is characterized by being linked to.

[0005]

When the pre-mowing treatment device is switched to the first treatment mode, the dust transfer valve is automatically opened due to the automatic operation of the dust transfer valve by the processed material transfer control means based on the information from the detection means. Adjust the residence time of the threshed material in the handling room to a shorter time. As a result, the threshing material to be introduced into the handling room is threshed well by the handling action due to the interlocking of the processed materials and the handling processing by the handling barrel. Excessive threshing, which is transferred to the edge side and stays too much in the handling room and is excessively threshed, is less likely to occur. When the pre-mowing treatment device is switched to the second treatment mode, the dust-sending valve automatically closes due to the automatic operation of the dust-sending valve by the processed-material transfer control means based on the information from the detection means, and the dust chamber is closed. Adjust the residence time of the threshed product to the longer side. As a result, the threshing material to be introduced into the handling room is not likely to be sufficiently threshed due to the handling action due to the interlocking of the processed materials and the handling processing by the handling barrel. It is transferred to the edge side and threshed over time so as to prevent threshing failure.

In the case of claim 2, the cutting pretreatment device is provided as a second
When switching to the treatment form, the planted stems are cut off at the plant base,
By supplying only the tip side part of the cutting stem culm to the threshing part, only the tip side part can be introduced into the handling room while preventing the culm side part from remaining in the stock part after cutting.

[0007]

[Effects of the Invention] When the cutting pretreatment device is switched to the first processing mode or the second processing mode, the time for the threshing processed material to stay in the handling chamber is sent to the time corresponding to the processing mode of the cutting pretreatment device. Since it is regulated by the dust valve, it is possible to work while appropriately threshing when cutting stems or culms shorter than the standard length or cutting stalks longer than the standard length. Moreover, since the dust-sending valve is automatically adjusted, the work can be performed easily by simply switching the processing mode of the pre-mowing treatment device.

In the case of claim 2, even in the case of a long culm in which only the tip side portion is introduced into the handling room, the culm side portion does not remain in the stock portion after cutting, so that the subsequent tilling work can be facilitated. You can work while

[0009]

EXAMPLE As shown in FIG. 1, a crawler type traveling device 1,
A cutting pretreatment device 10 for cutting planted stem culms such as rice and wheat is provided on the front part of the traveling machine body including the operation cabin 2 with the axis P1.
A threshing device 2 for threshing the mowing stem culm from the mowing pretreatment device 10 which is connected so as to swing up and down around and is lifted and lowered by the lift cylinder C1.
0, the traveling machine body is equipped with a grain tank 4 configured so that the grain removal from the grain removal device 20 is supplied by the bucket conveyor 3, and the grain stored in the grain tank 4 is carried out by the unloader 5. To configure
The combine is configured.

As shown in FIG. 1, the reaping pretreatment device 10 includes a lift cylinder C1 on the traveling machine body for the shaft core P.
1. A pretreatment device main body including a pretreatment frame 11 connected so as to swing up and down around 1, a clipper-type first cutting device K1 located inside a front end side portion of the pretreatment frame 11, and the like, The clipper type second cutting device K2 is arranged on the rear side of the machine body with respect to the first cutting device K1 and is attached to the outside of the pretreatment frame 11 via a support device 12. The main body of the pretreatment device divides the planted stem culms into the stalks to be cut and the stalks not to be cut by the dividers 13 attached to both lateral sides of the front end of the pretreatment frame 11, and the planters from the divider 13 are planted. Support arm 1 for extending the stems from the pretreatment frame 11
Scraping to the rear side of the machine body by the rotating reel 15 supported by 4 and mowing by the first mowing device K1,
The cutting stems from the first mowing device K1 are supplied to the platform auger 17 by the front conveyor 16 located behind the first mowing device K1, and by the platform auger 17, at the bottom plate portion of the front end side portion of the pretreatment frame 11. The platform 11a is conveyed in the lateral direction of the machine and is supplied to the stem culm receiving port of the feeder portion 11b which is the rear side portion of the pretreatment frame 11, and the cut culm from the platform auger 17 is supplied to the feeder portion 11b. The feeder conveyer 18 located inside is configured to be conveyed to the rear of the machine body along the bottom plate of the feeder portion 11b and fed to the threshing portion 21 of the threshing device 20. As a result, the main body of the pretreatment device cuts the planted stems by the first cutting device K1, and the first cutting device K1.
The whole cutting stem from 1 is the threshing part 21 of the threshing device 20.
Supply to. The second reaping device K2 is attached to the pretreatment frame 11
By swinging the supporting device 12 supported by the cylinder C2 up and down around the connecting shaft core P2 with respect to the pretreatment frame 11, the second cutting device K2.
Is at a lower level than the pretreatment frame 11 and has a lowering use position where the cutting stems are dropped to the field by the cutting action on the planting culms after the first reaping device K1 has passed, and the pretreatment frame 11 The platform auger 17 is inserted into the interior of the interior of the plant auger 17 so that the plant auger 17 can be switched to a retracted storage position that does not have a cutting action.
Accordingly, the pretreatment device main body is moved up and down with respect to the traveling machine body by the lift cylinder C1 and the second cutting device K2 is switched between the raised storage position and the lowered storage position, so that the pretreatment device 10 is processed. Are switched as shown in FIG.

That is, as shown in FIG. 2 (a), the main body of the pretreatment device is lowered with respect to the self-propelled machine body so that the first mowing device K1 is located near the ground, and the second mowing device K2 is moved. Operate to the raised storage position. Then, the pretreatment device main body cuts the planted stems at the base of the plant by the first mowing device K1 and supplies the whole mowing stems from the first mowing device K1 to the threshing unit 21 of the threshing device 20, and the second mowing device. The device K2 no longer has a cutting action on the planting stems. As a result, the pre-mowing treatment device 10 is in the first processing mode so as to mow the planted stalks at the plant base and supply the entire stalks to the threshing unit 21. As shown in FIG. 2B, the pre-treatment device main body is cut against the self-propelled device so that the first cutting device K1 acts to cut the first cutting device K1 at a position slightly closer to the plant base side than the seedling culm graining part. Then, the second cutting device K2 is moved to the lowered storage position. Then, the pretreatment device main body cuts the tip side part A of the planted stem culm by the first cutting device K1 and supplies the entire tip side part A from the first cutting device K1 to the threshing part 21 of the threshing device 20. The second cutting device K2 cuts the culm side part B of the planted stem culm after the tip side part A has been cut by the first reaping device K1 at the base of the plant and the cut stalk side part B to the field. I will drop it. As a result, the pre-cutting processing device 10 cuts the planted stem culm at the base of the plant, divides the cut culm into a tip side portion A and a stem side portion B, and cuts only the tip side portion A to the threshing unit 2
The second processing mode is performed so that the first processing is supplied to the first processing.

The threshing device 20 is constructed as shown in FIG. That is, the whole guide of the threshing target supplied from the feeder conveyor 18 of the pre-cutting apparatus 10 is guided by the supply guide 22, and the scraping blade 23 of the handling cylinder 23 is provided.
The threshing material introduced into the handling chamber 24 by the scraping action of a and the threshing-processed material that has entered the handling chamber 24 is the axial center 23b in the machine longitudinal direction.
While being transferred to the rear end side of the handling cylinder by the feeding action of the spiral blades 23c of the handling barrel 23 that rotates in the rotation direction F around the The threshing unit 21 is configured to drop from the concave 25 and discharge the threshing dust from the dust discharge port 26 to the outside of the machine. A throttling and sorting device 27 that sorts the threshed material that is dropped and supplied from the handling room 24 through the concave 25 into the rear side of the machine body while sorting the grain and dust, and a Karako 28 that supplies a sorting wind, and a dust sorting wind A sorting unit for discharging the dust from the dust outlet 26 to the outside of the machine is provided below the threshing unit 21, and a No. 1 screw conveyor 29a for conveying the No. 1 processed product from the sorting unit to the bucket conveyor 3 and two from the sorting unit. A No. 2 screw conveyor 29b for returning the processed product to the handling room 24 is provided at the bottom of the sorting section.

As shown in FIGS. 3 and 4, a plurality of dust delivery valves 30a are provided near the upper side of the handling cylinder 23 in the handling chamber 24 and arranged in the direction of the axis of rotation of the handling cylinder. These dust delivery valves 30
a is a rotary support shaft 3 on a body part 31 forming the handling chamber 24.
The vertical plate portion 30a of the bent plate body 30 attached via 2 guides the threshing material spirally transferred around the handling barrel 23 toward the rear end side of the handling barrel 23 by the turning force of the handling barrel 23. . As a result, when the rotary support shaft 32 is pivotally operated to swing the dust feed valve 30a with respect to the machine body portion 31, as shown in FIG.
As indicated by a phantom line, the dust transfer valve 30a has a mounting posture that is open to the spiral transfer direction R of the threshed material, or as shown by a solid line in FIG. The mounting posture is closer to the direction R. The open side of the dust transfer valve 30a with respect to the spiral transfer direction R is a mounting posture in which the angle D of the dust transfer valve 30a with respect to the spiral transfer direction R is large, and the closed side of the dust transfer valve 30a is the dust transfer valve 30a. Is a mounting posture in which the angle D with respect to the spiral transfer direction R is small. Therefore, when the dust transfer valve 30a is adjusted to the open side, the dust transfer valve 30a guides the threshing treatment product so that the spiral transfer direction of the threshing treatment product is more toward the rear end side of the handling cylinder than before adjustment. Then, the time during which the threshed material stays in the handling chamber 24 is set shorter than before adjustment. When the dust transfer valve 30a is adjusted to the closing side, the dust transfer valve 30a guides the threshed product so that the spiral transfer direction of the threshed product is toward the front end side of the handling cylinder rather than before adjustment, and the threshed product is removed. The residence time in the handling room 24 is made longer than before adjustment.

As shown in FIG. 5, one end side of all the dust feed valves 30a is connected by a connecting rod 33, and one of the plurality of dust feed valves 30a is connected to the body portion 31 of the rotary support shaft 32. A screw that is screwed to a screw shaft 35 that is attached to the shaft end portion protruding outside the handling room so as to be integrally rotatable, and that is provided on the outer surface side of the machine body portion 31 so as to be rotatable by an electric motor M. The member 36 is engaged with the operation arm 34 by a locking pin portion 36a provided on the screw member 36 so as to be relatively rotatable and pressed.
By rotating the electric motor M in the forward rotation direction or the reverse rotation direction, all of the dust transfer valves 30a can be adjusted to the closing side or the opening side.

As shown in FIG. 1, the preprocessing frame 1
No. 1 rotary type attached to the pretreatment frame 11 so as to operate in conjunction with the vertical swing of the self-propelled aircraft 1.
The cutting pretreatment device 10 is provided with a potentiometer S1 and a rotary second potentiometer S2 attached to the support device 12 and configured to operate in conjunction with the vertical swing of the support device 12 with respect to the pretreatment frame 11. There is. As shown in FIG. 6, both potentiometers S1,
The detection mechanism 39 and the processed material transfer control means 40 are provided in the control mechanism 37 by linking the drive circuit 38 of the electric motor M to the control mechanism 37 linked with S2 and configuring the control mechanism 37 by a microcomputer. There is. The detection means 39 is the first potentiometer S.
Based on the information from No. 1, it is determined whether the first cutting device K1 is in the descending position for cutting the root of the plant or the raising position for cutting the tip side, and the second potentiometer S2.
It is determined whether the second mowing device K2 is in the lowered use position or the ascended storage position based on the information from, and the mowing pretreatment device 10 determines whether the second mowing device K2 is in the first processing mode or the second processing mode based on these determination results. The processing mode is configured to be detected. When the detection means 39 enters the detection state of the first processing mode, the processed material transfer control means 40 automatically outputs a predetermined signal to the drive circuit 38 based on the information from the detection means 39 to send the electric motor M to dust. When the dust sending valve 30a is automatically operated to the open side by driving to the valve open side, and the detection means 39 enters the detection state of the second processing mode, the processed material transfer control means 40 informs the information from the detection means 39. Based on the above, a predetermined signal is automatically output to the drive circuit 38 to drive the electric motor M to the dust-sending valve closing side, so that the dust-sending valve 30a is automatically operated to the closing side. is there. As the processed material transfer control means 40, it is possible to employ one that performs a control operation with the reaping clutch being on as a starting condition. That is, the detection means 39
Even if the detection result changes, if the mowing clutch for driving and stopping the mowing pretreatment device 10 is disengaged, the control operation for adjusting the opening / closing of the dust sending valve 30a is not executed, and the mowing clutch is executed. The control operation for opening and closing the dust feed valve 30a may be configured and implemented only after the switch is turned on and off.

That is, in the case of a planted stem culm whose culm length is standard or shorter than that, the cutting pretreatment device 10 is operated in the first treatment mode. Then, the pre-cutting device 10 cuts the planted stem culms at the plant base and supplies the whole cut culms to the threshing unit 21. Therefore, the stem side of the stem culm does not remain in the stock portion after cutting, and cutting can be performed while facilitating the subsequent tilling work. At this time, the detection means 39 detects that the pre-mowing treatment device 10 is in the first processing mode based on the information from the potentiometers S1 and S2, and the processed material transfer control means 40 causes the dust transfer valve 30a based on the detection result. Is automatically operated to the open side, and the dust transfer valve 30a adjusts the residence time of the threshing processed material in the handling chamber 24 to the short side. For this reason, both the tip side part and the stalk side part of the mowing stem culm are introduced into the handling room 24, and the threshing products are appropriately fitted to each other in the handling room 24, and the handling barrel 23 effectively handles them. Despite the large amount of threshed products, threshing can be performed while preventing excessive handling of the threshed products. In the case of a planted stem culm having a culm length longer than the standard, the pre-mowing treatment device 10 is operated in the second treatment mode. Then, the pre-cutting apparatus 10 cuts the planted stems at the root of the plant, and supplies only the tip side portion A of the cut stems to the threshing unit 21. For this reason,
The stem-side portion B of the stem culm does not remain in the stock portion after cutting, and the cutting can be performed while facilitating the subsequent tilling work.
At this time, the detection means 39 detects that the pre-mowing treatment device 10 is in the second processing mode based on the information from the potentiometers S1 and S2, and the processed material transfer control means 40 causes the dust transfer valve 30a to be detected based on the detection result. Is automatically operated to the closed side, and the dust transfer valve 30a adjusts the residence time of the threshing processed material in the handling chamber 24 to the long side. For this reason, only the tip side part A of the cutting stems is introduced into the handling room 24, and the amount of threshing processed material in the handling room 24 becomes relatively small, so that the threshing operation by the mating of the threshing processed materials and the handling of the handling barrel 23. The threshing treatment can be performed while preventing the threshing deficiency, because the threshing-treated product is treated and the time required for treatment is long, despite the poor working efficiency.

[Other Embodiments] As the pre-mowing treatment device, if the device configured to cut the planting stem culm at the plant base even in the second treatment mode as in the above-mentioned embodiment is adopted, Even when working, the culm side part does not remain in the stock part after cutting, and it is advantageous to be able to work while facilitating the subsequent cultivating work. However, in the second treatment mode, the The present invention can also be applied to a case in which only the tip side portion is cut and the culm side portion is left in the stock portion after cutting.

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

[Brief description of drawings]

1] Side view of the whole combine

FIG. 2 is an explanatory view of a working state of the pre-mowing treatment device.

FIG. 3 is a sectional view of a threshing device.

FIG. 4 is a sectional view of the handling room.

FIG. 5 is a plan view of the dust control valve adjusting structure.

FIG. 6 is a block diagram of a dust control valve automatic control system.

[Explanation of symbols]

 10 Cutting Pretreatment Device 21 Threshing Part 23 Handling Cylinder 30a Dust Sending Valve 39 Detecting Means 40 Treated Material Transfer Control Means A Ear Tip Side Part B Crane Side Part R Treated Material Transfer Direction

Claims (2)

[Claims] 1. A cutting pretreatment device (10) for cutting a planted stem culm and supplying it to a threshing section (21), by cutting the planted stalk at the root of the plant and cutting the whole stalk culm to the threshing section (21). ) And a second treatment mode in which only the tip side part of the planted stem culm is supplied to the threshing part (21), and the threshing part (21) is provided. The pre-mowing treatment device (10)
A combine harvester configured to introduce the whole threshing target supplied from the handling chamber (24) into the handling chamber (24) and transfer it to the rear end side of the handling barrel by the rotating handling barrel (23). The dust transfer valve (30a) which guides the threshing processed material transferred to the rear end side of the processing cylinder by the handling cylinder (23) is adjustable between the open side and the closed side with respect to the processed material transfer direction (R). A detection means (39) provided in the handling chamber (24) for detecting whether the pre-mowing treatment device (10) is in the first processing mode or the second processing mode, and the dust feed valve ( When the detection means (39) is in the detection state of the first processing mode, the processed material transfer control means (40) is provided with the processed material transfer control means (40) for opening and closing 30a). Based on the information from (39), the dust transfer valve (3 When a) is automatically operated to the open side and the detection means (39) is in the detection state of the second processing mode, the processed material transfer control means (40) outputs information from the detection means (39). A combiner in which the processed material transfer control means (40) is linked to the detection means (39) in a state in which the dust feed valve (30a) is automatically operated to the closing side based on the above. 2. The cutting method in which the pre-cutting treatment device (10) cuts the planted stem culm at the root and also divides it into a tip side portion (A) and a stem side portion (B). The processing mode is such that the stem culm is cut and only the tip side part (A) of the tip side part (A) and the culm side part (B) of the cut stalk is supplied to the threshing part (21). The combine harvester according to 1.