JPH0638621A - Thresher of combine harvester - Google Patents

Abstract

PURPOSE:To obtain a thresher, capable of improving the threshing treatment performance without increasing the size of a machine body and inhibiting the conveyance of waste straws and responsive to more rows or a higher speed of a combine harvester. CONSTITUTION:The thresher is constructed by arranging a treating drum 17 for retreating materials untreated in a threshing chamber 3 in a lapping state with a threshing drum 4 in the grain culm transferring direction and in a state thereof, rotated and driven around the shaft center parallel to that of the threshing drum 4 at a position of the ear tip side on the downstream side in the grain culm transferring direction of the threshing drum 4, plural treating drums 18 and 19 rotating in the same direction around the shaft center nearly in the grain culm conveying direction side by side at positions on the downstream side of the grain culm transferring direction of the threshing drum 4 and on the conveyed plant foot side of the treating drum 17, stretching a receiving net along the lower side of the respective treating drums 17, 18 and 19, setting the rotational direction so as to treat the materials to be treated while transferring the materials to the plant foot side of the conveyed grain culms by cooperation with the receiving net and leak down the treated materials to a downward grading part 6. The rotation shaft center of the respective treating drums 18 and 19 located on the downstream side in the grain culm conveying direction of the threshing drum 4 is set in a tilted state so as to locate at a lower position toward the side of the threshing drum.

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.

[0002]

2. Description of the Related Art Conventionally, in a combine threshing apparatus, as disclosed in Japanese Utility Model Publication No. 52-95867,
Conveyance in the handling room The processing chamber for carrying in unprocessed material in the handling room from the communication port on the terminal side and reprocessing it with the processing drum is formed in a space with the upper side partitioned by the wall, outside the tip of the grain cuttings. Then, the processed material leaked from the receiving net stretched along the lower side of the processing cylinder, and the unprocessed material dropped through the lower opening on the upper side in the grain transfer direction and leaked from the handling room. In some cases, the lower sorting section was used to sort the processed products.

[0003]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In order to enhance the ability of harvesting and harvesting work in combine harvesters, it is possible to efficiently extract straw debris generated in the handling room in which the harvested grain culms are treated and untreated materials in the handling room. It is necessary to improve the separation performance between dust and grains by treating the receiving net with the above-mentioned conventional structure, paying attention to this point and not leaking the receiving net on the terminal end side in the grain culm transport direction in the handling room. The processing chambers for reprocessing straws and untreated materials are arranged side by side on the side of the handling chamber to enhance the processing performance in the handling chamber. However, in the above-mentioned conventional structure, since the reprocessing is performed by a single processing cylinder, if the amount of unprocessed material carried in from the handling chamber continues to exceed the processing amount in the processing chamber, the inside of the processing chamber continues. A large amount of unprocessed material is generated and overflows, resulting in deterioration of processing performance. Therefore, in order to increase the processing amount as the number of cutting lines in the combine increases and the traveling speed of the machine increases, it is necessary to increase the capacity of the processing chamber, that is, the diameter of the processing cylinder, and the size of the machine increases. Harm occurs. An object of the present invention is to provide a combine threshing device capable of improving threshing treatment performance without inviting an increase in the size of a fuselage due to a rational structural improvement.

[0004]

A feature of the present invention is that a processing cylinder for reprocessing unprocessed material in a handling room is provided at a tip side of a transfer grain culm on the lower side in the grain transfer direction of the handling barrel. In a state of wrapping along the handling barrel and the grain transfer direction, and arranged in a state of being rotationally driven around an axis parallel to the handling barrel axis, on the lower side of the handling barrel in the grain transfer direction, and A plurality of processing cylinders that rotate in the same direction around the axis parallel to the processing cylinders are installed in parallel at the transport grain culm plant side of the processing cylinders, and a net is stretched along the lower side of each processing cylinder. However, the rotation direction is set so that the processed product is processed while being transferred to the transportation grain culm stocker side in cooperation with the receiving net, and the processed product is configured to leak to the sorting section below and the handling cylinder. The axis of rotation of each processing cylinder located on the lower side in the grain culm transport direction is set to an inclined state in which the processing cylinder side is positioned downward. .

[0005]

[Operation] Straws and untreated materials that have been generated in the handling room and have not leaked through the receiving net of the handling room and have been carried around to the lower side of the grain culvert are carried along the handling barrel and grain culm transfer direction. It is reprocessed by the processing cylinder arranged at the tip side of the transport grain culm on the lower side in the grain culm transfer direction of the handling cylinder and the receiving net stretched below the culling state. Further, the unprocessed material that is not processed by the processing cylinder is a plurality of pieces arranged in parallel on the lower side of the handling cylinder in the grain culm transfer direction, and in a state having a parallel axis at the conveying grain culm stocker side of the processing cylinder. It is reprocessed while being sequentially transferred by the processing cylinder and the receiving net. In this way, the plurality of processing cylinders having the parallel axial cores and arranged in the parallel state ensure that the unprocessed material is processed without stagnation while the transfer is smoothly performed and leaks through the receiving net. The sorting unit sorts the grains into dust and dust. In this way, since the reprocessing path is formed by a plurality of processing cylinders, it is possible to provide a sufficient reprocessing function even if each processing cylinder is downsized, and moreover, on the lower side of the handling room in the grain culm transfer direction. By reasonably arranging it in an empty space, the threshing device as a whole will not be oversized. In addition, the discharged straw after being treated by the handling barrel must be discharged to the outside of the rear of the machine through the lower side of the handling barrel in the grain transfer direction. Since the processing cylinder exists on the lower side, the transfer of the discharge straw may be hindered. However, the processing cylinder located on the lower side in the transfer direction of the handling cylinder is provided in an inclined posture in which the processing cylinder is located on the lower side. Therefore, the discharged straw discharged from the handling chamber is smoothly conveyed along the upper side of the processing cylinder in the oblique posture without being accumulated due to catching or the like.

[0006]

Therefore, by reasonably improving the reprocessing structure for unprocessed materials in the handling room, it is possible to smoothly dislodge the straw scraps and unprocessed materials generated in the handling room and to reprocess them. It is possible to improve the threshing processing performance by forming the service route sufficiently long without increasing the size of the machine body, and also to prevent clogging due to the accumulation of the discharged straw without hindering the conveyance of the discharged waste straw. It was possible to provide a threshing device capable of coping with a large number of combine harvesters and an increase in the traveling speed of the airframe.

[0007]

Embodiments will be described below with reference to the drawings. Figure 2
Shows the combine threshing device. In this threshing device, the harvested grain culm that has been harvested and transported by the pre-shearing treatment section (not shown) in the front part of the machine body is transported while sandwiching its stock source by the feed chain 1 and the sandwiching rail 2. The tip side is handled in the handling chamber 3 in cooperation with a handling drum 4 which is driven and rotated around the front-rear axis X1 and a receiving net 5 which is stretched in an arc shape along the lower side of the outer periphery of the handling barrel 4 to treat and process the grain. And the processed material that has leaked through the net 5 is sorted into grains and other dust by the sorting unit 6 on the lower side, and the grains are stored in a grain tank (not shown) and treated with fine dust. It is configured to discharge the discharge straw of the outside. The handling barrel 4 is configured as a lower handling type, and is configured to perform a handling treatment with the receiving net 5 from the stocker side of the transported grain culm toward the tip side, and leaks through the receiving net 5. The processed product is processed in the lower sorting unit 6. Sorting unit 6
Is a grain pan 7 for swinging and transporting the processed material leaked by the initial processing by the handling cylinder 4 while sorting the difference in specific gravity and separating it into grains and light straw scraps, the processed material transferred from the Glen pan 7 and the handling material. Chaff sheave 11 that receives the processed matter that leaks from the lower side of the processing path and that causes grain to leak and the straw debris to be transferred to the rear, Straw rack 9 that conveys the debris sent from the chaff sheave 11 and discharges it to the outside of the machine,
The swing shelving device is attached to the swing frame 10 for swinging the grain sheave 8 and the like for sorting the grain that leaks from the chaff sheave 11, and the fine straw debris that leaks from the grain sheave 8 is rearward and upward. Karato 12 blown away to
It receives the falling grains and conveys them in the lateral direction and carries them out to a grain tank (not shown). It is provided with a second recovery screw 14 and the like for reduction. And at the rear end of the thresher,
A cross-flow fan 15 is provided for sucking in dust such as fine straw dust blown off by and discharging it to the outside of the machine. The discharged straws that are sandwiched and conveyed by the feed chain 1 and the handling process is completed are sandwiched and conveyed to the rear side of the machine body by an exhausted straw conveyor chain 16 that is arranged in series at the end side of the feed chain 1. And the 1st processing cylinder 17 which re-processes the unprocessed material in the handling chamber 3 in the tip side part of the conveyance grain culm on the lower side in the grain culm transfer direction of the handling barrel 4 in the handling barrel 4 and the grain culm transfer direction. Along with wrapping along and the handling body axis X1
It is arranged in a state of being rotationally driven around an axis X2 parallel to the first processing cylinder 1 on the lower side of the handling cylinder 4 in the grain culm transfer direction.
Two second and third processing cylinders 18 and 19 that rotate in the same direction as the first processing cylinder 17 are arranged in parallel at the transportation grain culm stock side of 7 and the respective processing cylinders 17, 18 and 19 are arranged. The receiving net 20 is stretched along the lower side, and in cooperation with the receiving net 20, the rotation direction is set so that the processed product is processed while being transferred to the transportation grain culm stocker side, and the processed product is sorted downward. It is configured to leak to the portion 6. The rotation axes X3 and X4 of the processing cylinders 18 and 19 located on the lower side of the handling cylinder 4 in the grain culm transporting direction are set in an inclined state in which they are positioned lower toward the handling cylinder 4 side. In detail,
As shown in FIG. 1, FIG. 3, and FIG. 4, the untreated material that has not leaked through the receiving net 5 in the handling chamber 3 from the tip side on the lower side of the handling chamber 3 in the grain culm conveying direction is treated by the first processing cylinder 17 Exit 21 to send to
And the unprocessed material is processed by the first processing cylinder 17 and transferred to the rear side of the machine body, and the processed materials are sequentially transferred from the first processing cylinder 17 to the second and third processing cylinders 18 and 19. The rotation direction is set so as to perform the grain-removing process with the receiving net 20 while transferring in the lateral direction. And each of the processing cylinders 1
7, 18 and 19 are configured to be driven via a bevel gear mechanism 25 from a drive shaft 24 installed over the left and right wall portions 23a and 23b of the threshing device on the rear side, and the drive shaft 24 and each bevel gear mechanism 25 are driven. Interior transmission case 2
An upper side wall portion 27 of the dust exhaust passage extending over substantially the entire width of the threshing device is extended from the upper part of 6 to the rear side. The second and third processing cylinders 1 located on the lower side of the handling cylinder 4 in the grain culm transfer direction.
The drive shafts 28 and 29 of 8 and 19 are supported in a cantilever manner by setting them in a slanted position which is located downward toward the handling cylinder 4 side.
Further, the side surface 30 of the second and third processing cylinders 18, 19 on the side of the handling cylinder 4
Is formed in a conical shape and is configured as an inclined guide surface so that the discharge straw discharged from the handling chamber 3 can be smoothly conveyed without being caught. Similarly, the receiving nets 20 stretched below these are also arranged in an oblique posture, and the ventilation passages R are provided below the receiving nets 20 so that the sorting air supplied from the Kara no 12 flows smoothly toward the cross flow fan 15. Has been formed. The second product conveyed laterally by the second product recovery screw 14 is configured to be returned to the upper side of the processing path by the processing cylinders 17, 18, 19 via the vertical conveyor 31. The discharge straw conveying chain 16 is arranged in a state of bypassing the upper side of the processing cylinder 19, and the discharge straws sandwiched and conveyed by the discharge straw conveying chain 16 are the second and third processing cylinders 18, 19.
The transport path is configured to pass through the space on the upper side in the grain culm transfer direction to the upper side of each processing cylinder, and the tip of the discharged straw is handled by the upper side of each processing cylinder 17, 18 and 19 during the transportation. In response to this, the grain stuck into the discharged straw is effectively shredded.

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a simplified plan view of a threshing device.

FIG. 2 is a simplified side view of a threshing device.

FIG. 3 is a vertical sectional front view of the threshing device.

FIG. 4 is a vertical sectional front view of the threshing device.

[Explanation of symbols]

 3 Handling room 4 Handling body 6 Sorting unit 17, 18, 19 Processing body 20 Receiving net

Claims (1)

[Claims] 1. A handling cylinder (17) for reprocessing unprocessed material in a handling chamber (3) is provided at a tip end side of a transfer grain culm on the lower side in the grain transfer direction of the handling barrel (4). It is arranged in a state of wrapping with (4) along the grain transfer direction, and in a state of being rotationally driven around an axis parallel to the axis of the handling cylinder (4), and the grain transfer direction of the handling cylinder (4). A plurality of processing cylinders (18), (19) that rotate in the same direction on the transport side of the processing cylinder (17) on the transport grain culm stocker side of the processing cylinder (17) around the axis substantially along the grain culm transportation direction are provided on the lower side. The receiving nets (20) are arranged in parallel, and the receiving nets (20) are stretched along the lower side of the processing cylinders (17), (18), (19).
The rotation direction is set so that the processed product is processed while being transferred to the transportation grain culm plant side in cooperation with the structure so that the processed product leaks to the lower sorting section (6) and the handling cylinder (4 )
Each processing cylinder (18) located on the lower side of the grain culm transportation direction of
(19) The combine threshing device in which the rotary shaft core is set in an inclined state in which the rotary shaft core is located lower toward the handling barrel side.