JP3347834B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention conveys a harvested grain stalk toward a threshing apparatus, and handles the spike side in a handling room while nipping and transporting the stock side by a clamping and conveying apparatus. The swing sorting device in the threshing device is configured as described above and includes a coarse sorting unit that roughly sorts the processed material leaked from the handling room and a fine sorting unit that sorts grain.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned combine, for example, as disclosed in Japanese Utility Model Laid-Open No. 2-123837,
When an extremely short cereal culm that cannot be detected by the cereal culm presence sensor located on the side of the stock among the cereal culm presence / absence sensor is conveyed, the cereal culm presence / absence sensor is turned off (the absence of cereal culm) ) Is detected, the pinching state of the transported grain culm in the second half of the transport path of the pinching transport device for threshing work is released, and all the culms of the transported grain culm are put into the handling room, and the grain culm is configured to be released. In some cases, when the presence / absence sensor detects a grain culm, all culms are released.

[0003]

In the conventional structure, when the cutting height of the planted grain culm becomes extremely high, if such an extremely short cut grain culm is transported, the handling room is not used. In this case, sufficient threshing cannot be performed if the tip side slightly touches the handling cylinder, so in such a case, release throat and release all culms into the handling room to perform threshing. It is designed to reduce unhandled items. However, in the above configuration, the pinching and transporting device is released based on the detection result of the cereal stalk presence / absence sensor disposed on the starting end side of the cereal stalk transport path in the pre-cutting processing unit, and the cereal stalk presence / absence sensor is turned off. When a culm is detected, that is, when a long culm is conveyed, control is performed so as to return to a normal nipping and conveying state. In other words, in order to eliminate hand-cutting work at corners that cannot be handled by round-cutting work at the edge of a ridge, etc., the planting grain culm at this point is raised while gradually raising the pre-cutting part to avoid contact with the ridge. In the case of performing a so-called mowing operation for cutting, the shortest culm is conveyed at the end of the mowing operation, so that the nipping transport device is maintained in the unpinching state until the next operation is started after the mowing is completed. As a result, dust from the threshing device blows out from this gap, and the handling cylinder that rotates at high speed faces outward from the gap, so there is a problem in terms of safety, and there is room for improvement in this respect. . Therefore, as a method for solving such a disadvantage, a configuration in which a change in the work load of the threshing device is detected based on the engine speed or the rotation speed of the drive shaft of each unit of the threshing device may be considered. The power from the engine is supplied not only to the threshing device but also to the aircraft traveling drive system.In the combine, traveling in wetlands may increase the traveling load depending on the traveling condition. Therefore, there is a drawback in that accurate detection of the threshing work load based on changes in the engine speed and the threshing drive speed cannot be performed. An object of the present invention is to solve the above-mentioned disadvantages.

[0004]

Characteristic feature of the present invention, in order to solve the problem] is the combined listed at the beginning, in the middle grain稈搬feed path for threshing process, and nipped and conveyed state for conveying the cutting culms, cutting ToKoku稈In addition to providing an all-culms input device that can be switched to an all-culms input state in which all the culms are input to the threshing device,
Processed amount detection means for detecting the amount of straw chips and the like staying on the rough sorting unit, and short culm detection means for detecting that the culm length of the cereal culm conveyed toward the threshing device is equal to or less than a set value Comprising, based on the detection information of the short culm detection means, switching the entire culm input device from the pinching and transporting state to the full culm input state, after which the amount of straw waste by the processing amount detection means has become a set amount or less. That is, a control means is provided for returning the whole culm input device from the full culm input state to the nipping and conveying state when detecting that.

[0005]

When the short culm detecting means detects that the culm length of the transported cereal culm is less than the set value during the mowing operation,
Since the entire culm input device switches from the nipping and transporting state to the all culm input state, all the culms including such a short cereal culm including the stem portion can be input into the threshing device and the processing can be reliably performed. And, as described above, even if it is a short culm, the stem portion (straw) is also put into the threshing device, and as a result, the amount of straw waste that is handled and processed in the handling room and leaks to the swing sorting device increases. Then, when the harvesting operation is completed and the handling process in the handling room is completed, the amount of the leaking waste chips is reduced thereafter. Therefore, the change in the amount of straw waste on the rough sorting unit in the rocking sorting device in proportion to the change in the handling amount is detected, and when the detected value falls below the set amount, the threshing process of the short culm ends. As a result, the entire culm input device is controlled to automatically return from the all culm input state to the nipping and conveying state.

[0006]

Therefore, while being able to prevent the harmful effects such as the extremely short culm being discharged while being left unhandled,
Even if the shortest culm is conveyed at the end of mowing work, such as mowing work, it is not a continuous high mowing work, but it is reasonable to ensure that the handling process is completed at the end of such work The holding / conveying device can be returned to the normal holding / conveying state at a proper timing, so that the emission of dust and noise can be reduced, and work safety can be improved.

[0007]

Embodiments will be described below with reference to the drawings. FIG.
As shown in the figure, a cutting pre-processing unit 4 is provided at the front of a body including a pair of right and left crawler traveling devices 1, a threshing device 2, a control unit 3, and the like.
Are combined so as to be able to move up and down around the horizontal axis P to form a combine. The pre-cutting processing unit 4 includes an elevating device 5 that causes the planted grain culm, a cutting blade 6 that cuts the root of the planted grain culm that has been raised, and an auxiliary that collects the harvested grain culm and conveys it backward. A transport device 7, a vertical transport device 9 and the like, which are transferred to the pinching transport device 8 of the threshing device 2 while gradually turning over the grain stems,
It is configured to swing up and down by driving the up and down cylinder 10.

[0008] The threshing device 2 holds the stem side of the grain culm by a clamping and conveying device 8 comprising a rotatingly driven feed chain 8a and a clamping rail 8b provided opposite thereto, and conveys the spike end side. As shown in FIG. 5, the processing is performed in the threshing apparatus 2, and as shown in FIG. It is configured to be sorted by the lower swing sorting device 33. Swing sorting device 33
Is a glen pan 34 that swings and transfers the processed material leaked at the transfer start end side of the handling room 30, and a chaff sieve that roughly sorts the processed material leaked at the transfer end side of the handled room 30 and the processed material transferred from the Glen pan 34. 35 [an example of a coarse sorting unit], a grain sieve 36 that sorts the leakage from the chaff sieve 35 into grains.
[Example of a fine sorting unit] is provided in a swing sorting case 37, and the swing sorting case 37 is swingably driven to be sieved and sorted. While the dust is discharged to the outside of the machine body by the dust blower 39, the grain is collected by the first material collection unit 40, and the second product is returned to the handling room 30 by the second material collection unit 41. It is. In addition, the chaff sieve 3
5 above the chaff sheave 3 as shown in FIG.
A processing amount detection sensor 42 (an example of processing amount detection means) for detecting the amount of straw waste or the like staying on the surface 5 is provided. The processing object amount detection sensor 42 includes a sensor bar 42a rotatable about a horizontal axis and a swing amount of the sensor bar 42a, that is, a potentiometer 42b for detecting a layer thickness of the processing object.
It consists of

The vertical conveying device 9 comprises a stock conveying device 9a for pinching and conveying the stem side of the grain culm, a head conveying device 9b for locking and conveying the ear side of the grain culm, and a spike guide plate 9c. The processing unit 4 is swingably supported around the same axis as the swing axis P, and is provided so as to be swing-adjustable by an electric motor M1 with a gear type reduction mechanism (hereinafter referred to as a handling depth motor). The receiving and holding point from the auxiliary transport device 7 is changed in the culm length direction, and the handling depth in the threshing device 2 can be changed and adjusted. Then, the handling depth motor M1 is automatically controlled so that the handling depth is always in an appropriate state regardless of the stem length of the planted grain culm. That is, as shown in FIGS. 1 and 6, a pair of grain stalk presence / absence sensors S1 and S2 for detecting culm length are provided in the transport path of the harvested grain culm, and the ear of the grain culm is located between these two sensors S1 and S2. The control unit 12 having a microcomputer as a control means automatically controls the handling depth motor M1 so as to be located. The two sensors S1 and S2 are provided in a switch type that swings and turns on when the grain culm contacts, and a grain stalk presence / absence sensor S1 (hereinafter, referred to as a long culm sensor) located on the tip side.
Is off, the grain stalk presence / absence sensor S2 located on the stock side
The handling depth motor M1 is controlled so that [an example of short culm detection means, hereinafter referred to as a short culm sensor] is turned on. At the swing fulcrum of the vertical transport device 9, a potentiometer type supply position sensor 13 for detecting which position the current adjustment position of the vertical transport device 9 is located is provided.
A stock sensor 14 for detecting whether or not cereal stems are being transported is provided in the transport path.

[0010] The combine is provided with a structure for preventing the extremely short culm harvested grain culm generated in the cutting operation on the ridge from being left unhandled. That is, an instruction switch 15 for giving an instruction to start the mowing operation to the control unit 3 is provided. When the instruction switch 15 is operated, the mowing pre-processing unit 4 is automatically raised and the handling depth motor M1 is operated. Is operated to the deepest handling side. Also, in the course of the culm conveyance path for threshing processing, the nipping and conveying state for conveying the harvested corn culm, and release of the culled culm at the root side of the culm, and the entire culm of the culled corn culm is thrown into the threshing apparatus 2. Whole culm
Provide a whole culm input device 16 that can be switched to the input state,
When both the long culm sensor S1 and the short culm sensor S2 detect the absence of a grain culm in a state where the handling depth motor M1 is adjusted to the deepest handling side, the whole culm input device is moved from the sensor arrangement position. After the required time for transporting the harvested grain culm to 16 has elapsed, the control device 12 controls the entire culm input device 16 to switch from the nipping and transporting state to the all culm input state. As shown in FIG. 2 and FIG.
b, the plurality of divided bodies are pivotally connected by the pivot pins 23, and the rods 24 connected to the respective pivot pins 23 are vertically slidably supported on the frame body 25, and are externally fitted to the rods 24. Each pivot point is pressed and urged toward the feed chain 8a by the coil spring 18. One of the pivot points of the holding rail 8b, which is pressed and urged toward the feed chain 8a by a spring 18 by an operating member 17 which is interlocked and rotated by a lift driving electric cylinder M2 in the middle of the conveying path by the holding and conveying device 8. In the section, the rod 24 is lifted upward to partially release the culm clamping action with the feed chain 8a, thereby constituting the whole culm input device 16. That is, by releasing the holding by the holding rail 8b, the grain culm is pulled into the inside together with the culm portion by the rotation of the handling drum inside the threshing device 2 (see FIG. 3).

A feed rotation sensor 19 for detecting the rotation state of the stock feeder 9a is provided on the drive shaft portion of the vertical feeder 9, and the sensor S1 of the stock feeder 9a is detected based on the detected value of the feed rotation sensor 19. , S2 to determine the transfer status from the disposition point to the transfer end portion. When the rotation speed of the feed chain 8a is a normal load, the rotation speed is a predetermined substantially constant speed. Since the transport time to the release point is a fixed value, it can be obtained by a timer.

The control procedure of the control device will be described below. As shown in FIG. 7, in the harvesting operation, it is detected that the stock sensor 14 is turned on and the grain stalk is being transported, and when the instruction switch 15 is operated, the mowing pre-processing unit 4 is raised. At the same time, the handling depth motor M1 is operated to the deepest handling side to maintain that state [Steps 1 to
4]. Incidentally, when the instruction switch 15 is not operated, normal handling depth control is executed [Step 5]. Then, the transport state is detected from the detection information of the transport rotation sensor 19, and it is confirmed from the detection information of the supply position sensor 13 that the vertical transport device 9 is at the supply position on the deepest handling side. When it is detected that the very short culm has been conveyed while each of the sensors S2 is in the off state, the grain culm is conveyed from the position where each of the sensors S1 and S2 is provided to the start end of the feed chain 8a based on the detection information of the conveyance rotation sensor 19. It is determined that the transfer has been completed, and when the required time for transport from the starting end of the feed chain 8a to the entire culm input device 16 has elapsed from that time, the electric cylinder M2 is operated to switch to the all culm input state [steps 6 to 11]. . Thereafter, based on the detection value of the processed material amount detection sensor 42, when it is detected that the amount of straw chips on the chaff sheave 35 has decreased to a set amount or less, the output to the electric cylinder M2 is stopped and the entire culm input state is changed. Then, the holding and conveying device 8 is returned to the normal holding operation state [Steps 12 and 13].

[Other Embodiment] Instead of the chaff sheave type, the swing sorting device 33 may be constituted by a straw rack type rough sorting section. The detection sensor 42 detects the amount of processed material on the straw rack. As the short culm detection means, a dedicated ultra-short culm detection sensor may be used instead of the one that also serves as the grain culm presence / absence sensor for adjusting the handling depth as described above.

In the claims, the reference numerals are used to facilitate comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a control block diagram.

FIG. 2 is a side view of the whole culm loading device.

FIG. 3 is a side view of the whole culm loading device.

FIG. 4 is a longitudinal sectional front view of the whole culm loading device.

FIG. 5 is a simplified side view of the threshing apparatus.

FIG. 6 is a side view of a processing amount detection sensor.

FIG. 7 is a control flowchart.

FIG. 8 is a side view of the front part of the combine.

[Explanation of symbols]

 2 Threshing device 8 Nipping and conveying device 12 Control means 16 Whole culm loading device 30 Handling room 33 Swing sorting device 35 Rough sorting unit 36 Fine sorting unit 42 Processed material amount detecting means S2 Short culm detecting means

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Yoshigo Fukuoka 64 Ishizukita-cho, Sakai-shi, Osaka Inside the Kubota Sakai Factory (72) Inventor Toshikatsu Otani 64 Ishizukita-cho, Sakai-shi, Osaka Kubota Sakai Manufacturing Co., Ltd. Office (72) Inventor Koji Yamagata 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works, Ltd. (72) Inventor Tamotsu Seiya 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works, Ltd. (72) Inventor Shigeki Hayashi 64, Ishizukita-cho, Sakai-shi, Osaka, Japan, inside Kubota Sakai Factory (72) Inventor Towa Terao 64, Ishizukita-cho, Sakai-shi, Osaka, Japan Inside Kubota Sakai Factory, (56) References JP-A-4- 30721 (JP, A) JP-A-5-161419 (JP, A) JP-A-2-123837 (JP, U) JP-A-4-100338 (JP, U) (58) Fields investigated (In) t.Cl. ⁷ , DB name) A01F 12/10 A01D 61/00 A01F 12/32

Claims (1)

(57) [Claims] 1. The harvested grain culm is conveyed to a threshing device (2), and the spike side is held inside a handling chamber (30) while being pinched and conveyed by a pinching and conveying device (8). It is configured to handle, and the swing sorting device (33) in the threshing device (2) is subjected to grain sorting with a rough sorting unit (35) that roughly sorts the processed material leaked from the handling room (30). a combine that is constructed by a selective specific portion (36), during grain稈搬feed path for threshing process, and nipped and conveyed state for conveying the cutting culms, all culms of the bush ToKoku稈Threshing equipment (2)
A processing amount detection means (42) for detecting an amount of straw chips and the like staying on the rough sorting section (35), provided with a whole culm introduction device (16) that can be switched to a whole culm introduction state to be introduced into the culm; , The threshing device (2)
And a short culm detecting means (S2) for detecting that the culm length of the grain culm conveyed toward the culm is equal to or less than a set value, based on the detection information of the short culm detecting means (S2). When the apparatus (16) is switched from the nipping and conveying state to the whole culm input state, and thereafter, when the amount of straw waste is detected by the processing amount detecting means (42) to be equal to or less than the set amount,
A combine provided with control means (12) for returning the whole culm input device (16) from the whole culm input state to the nipping and conveying state.