JP2013074804A - Harvesting unit of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvesting unit of a combine harvester which prevents that dusts generated on the harvest of crops reach a driver's seat and also prevents that the ear tip sides of the crops hang down from the rear frame of a table and stay.SOLUTION: In the harvesting unit of the combine harvester having a raking reel (18) liftably disposed on a table (14) on which a raking auger (20) is laterally spun, a plate (1) expanding over approximately the whole lateral width of the table, is provided at the rear upper part of the table (14) over the approximately whole lateral width of the table (14) to be turned back and forth, the back and forth rotation of the plate (1) is associated with the upward or downward movement of the raking reel (18), when the raking reel (18) is downward moved, the plate (1) is turned forward to cover the upper portion of the table (14), and when the raking reel (18) is upward turned, the plate (1) is turned backward to receive the ear tip sides of grain straws fed into the table (14).

Description

The present invention relates to a harvesting device for a general-purpose combine that harvests cereal grains with grains and puts the whole grains together with grains into a threshing apparatus for threshing and harvesting.

A general-purpose combiner has a horizontally long table with a horizontal auger mounted on the front of the aircraft and a horizontal scraping reel on the table. Reap the whole body of the cereal with a reaping device. Then, the cereals laterally fed by the stirrer auger are fed rearward and upward by a feeder provided on the rear side of the table, supplied to the threshing device, threshed, and selected and harvested.

Japanese Patent Application Laid-Open No. 2004-321027

General-purpose combine is used for harvesting crops with short culm length such as wheat and soybeans, and crops with long culm length such as rice and barley. In the case of crops with a short culm length, the harvesting work is performed with a lowering reel, but a lot of dust is generated, and the operator sitting in the cockpit at the rear of the aircraft will be covered with dust. Although the harvesting work is performed with the pick-up reel raised, in this case, the generation of dust is small, but the tip of the cereal that has been cut off the stock base hangs down from the rear frame of the table, and is subjected to the transverse feed action of the pick-up reel. Without being able to stay on the table, the harvesting work cannot be continued.
Therefore, in the present invention, dust generated at the time of harvesting a crop with a short culm length is prevented from going to the cockpit, and at the time of harvesting a crop with a long culm length, the head of the crop is prevented from hanging down from the rear frame of the table. The challenge is to be able to continue the harvesting work.

The problems of the present invention are solved by the following technical means.
The invention according to claim 1 is a general-purpose combine in which a take-up reel (18) is provided on an upper part of a table (14) horizontally mounted with a take-up auger (20) so as to be adjustable up and down, after the table (14). A plate body (1) extending over the entire width of the left and right width of the table (14) is provided on the upper part so as to be able to rotate back and forth, and the back and forth rotation of the plate body (1) is interlocked with the raising and lowering of the take-in reel (18). When the take-up reel (18) is lowered, the plate (1) is rotated forward to cover the upper portion of the table (14), and when the take-up reel (18) is raised, the plate (1) is moved to the rear side. A general-purpose combine harvester characterized in that it is configured to receive the tip side of the corn kernels that are rotated into the table (14).
In this configuration, when the rake reel (18) is raised to harvest a long culm, the plate (1) provided at the rear upper part of the table (14) rotates rearward. In this case, the plate body (1) is rotated forward and scraped when the head of the cereal is received to prevent it from drooping and the rake reel (18) is lowered to harvest the culm with a short culm length. It prevents dust from rolling up due to the action of the loading auger (20) and the take-up reel (18).
The invention according to claim 2 is the harvesting of the general-purpose combine according to claim 1, wherein the plate (1) is attached to a reel support arm (19) for supporting the take-up reel (18) so as to be pivotable back and forth. A device.
In this configuration, the plate body (1) is rotated forward to prevent the dust from rolling up, and the plate body (1) is rotated rearward to harvest the long culm so as to end the table 14. It is possible to prevent drooping of the tip from the edge and, furthermore, by turning the plate (1) to the rear side, it can be used as an input work table for the cereals harvested by the operator.
The invention according to claim 3 is the general-purpose combine harvesting device according to claim 1 or 2, wherein the plate (1) is formed of a transparent material.
With this configuration, it is possible to observe the lateral feed state of the cereal by the stirrer auger (20) in the table (14) through the plate (1) from the cockpit behind the table (14).
According to a fourth aspect of the present invention, a corner guide (2) is provided at the base of the reel support arm (19) to take the cereals fed into the table (14) into the transfer action area of the auger (20). The general-purpose combine harvester according to claim 2 or claim 3 provided.
With this configuration, the culm that is about to stay in the base of the reel support arm (19) is guided by the corner guide (2) and taken into the take-in auger (20).
According to a fifth aspect of the present invention, the upper surface (22a) of the feeder case (22) is made higher than the upper surface (52a) of the horizontal frame (52) provided at the rear upper part of the table (14). It is set as the harvesting apparatus of the general purpose combine as described in any one of Claims 4.
With this configuration, dust and cereals placed on the upper surface (22a) of the feeder case (22) slide down through the upper surface 52a of the horizontal frame (52).

According to the first aspect of the present invention, in the case where the picking reel (18) is raised to harvest the long culm, the plate (1) provided at the rear upper part of the table (14) Rotate to the rear side to prevent the grain tip from hanging down and the harvesting operation is not interrupted due to clogging of the grain. In addition, when the take-up reel (18) is lowered to harvest cereals having a short cocoon length, the plate body (1) rotates forward, and the take-up auger (20) or the take-up reel ( 18) prevents the dust generated by acting on the tip of the cereal culm from being rolled up, and the harvesting operation can be performed while maintaining the sanitary environment of the operator at the cockpit.
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the plate body (1) is manually cut by rotating the plate body (1) largely rearward. It can be used as an input worktable for cereals.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, the operator at the cockpit seats the table (14) through the plate body (1). The lateral feed state of the cereal by the auger (20) can be observed.
According to the invention described in claim 4, in addition to the effects of the invention described in claim 2 or claim 3, the cereals that are about to stay in the base of the reel support arm (19) are corner guides (2). It is guided and taken into the take-up auger (20), and the cereals are less likely to stagnate.
According to the fifth aspect of the present invention, dust and grains placed on the upper surface (22a) of the feeder case (22) slide down through the upper surface (52a) of the horizontal frame (52) during the harvesting operation. Is less likely to rise to the cockpit, and the operator's front view is improved.

It is a sectional side view of a general purpose combine. It is a sectional side view of a cutting pretreatment apparatus. It is a plane sectional view of a cutting pretreatment device. It is a sectional side view of the cutting pre-processing apparatus of another Example. It is a top view of the cutting pre-processing apparatus provided with the row crop apparatus. It is a sectional side view of the cutting pre-processing apparatus provided with the row crop apparatus. It is an expanded sectional side view of the cutting pre-processing apparatus provided with the row crop apparatus. It is a partial expanded side sectional view of the cutting pre-processing apparatus provided with the row crop apparatus.

Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings.
As shown in FIG. 1, the general-purpose combiner has a threshing device 60 mounted on a vehicle body 12 equipped with a pair of crawlers 11, 11 on the left and right sides, with the cereal supply port in front, and a pre-harvest pretreatment device in front of it. 13 is provided so that the harvesting and threshing of wheat, soybeans, rice, barley, and the like can be performed. And the threshing device 60 is a whole-powder throwing type configuration that puts all of the harvested cereal into the handling room, and is a general-purpose combine threshing device in which the handling room is arranged on the upper side and the sorting room is arranged on the lower side. It is composed.
The pre-cutting processing device 13 arranges a table 14 as a mounting base in a horizontal position at a low position, and the table 14 is bucketed by vertical support frames 15 and 15 on both the left and right sides, a rear upper horizontal frame 52 and a bottom frame. The main cutting device 16 and the take-up reel 18 are attached.
The main mowing device 16 extends along the front edge of the bottom frame of the table 14 between the weed ridges 17 and 17 provided to extend forward from both front portions of the support frames 15 and 15. The configuration is provided.
As shown in FIG. 3, the main cutting device 16 includes a large number of fingers 3 and a movable main cutting blade 4, and connects the L-shaped drive arm 8 fixed to the output shaft of the cutting blade drive case 7 and the movable main cutting blade 4. And reciprocally swing left and right.
A reel support bracket 59 is mounted on a lateral frame 52 at the rear upper part of the left and right support frames 15, 15, and the base portions of the reel support arms 19, 19 are attached to a rotation support shaft 53 supported by the reel support bracket 59. A horizontal axis is pivotally attached, and the reeling support arm 19, 19 supports the scraping reel 18. A hydraulic cylinder 10 for raising and lowering the reel support arms 19 and 19 is provided between the outer portion of the support frames 15 and 15 and the reel support arms 19 and 19. A side plate 54 having a pentagonal shape in side view on the side of the take-up reel 18 is pivoted. Since the hydraulic cylinder 10 is provided outside the rotation trajectory of the tine 56 of the take-up reel 18, the cereal that is scratched by the tine 56 is not caught by the hydraulic cylinder 10 and is taken into the take-up auger 20.
A large number of tines 56 are arranged at predetermined intervals in the horizontal direction on horizontal tine shafts 57 that are horizontally mounted on the respective corners of the left and right side plates 54, and these tines 56 are always maintained regardless of the rotation of the take-up reel 18. A link mechanism is provided so as to face downward.
The plate 1 is fixed to the rotation support shaft 53 over the entire width between the left and right side plates 54. The plate body 1 is reinforced with a linear frame rod 1a, and in a position where the take-up reel 18 is lowered, the plate body 1 is tilted forward and covers the table 14, and is wound as the take-up auger 20 rotates. The rising dust is prevented from flowing to the rear cockpit side, and at the position where the take-up reel 18 is raised, it is raised backward and receives the tip side of the cereal that falls on the horizontal frame 52 of the table 14 and is bent. Therefore, the take-in to the take-in auger 20 can be performed without any trouble.
Further, the corner guide 2 is attached to the attachment side (base portion) of the reel support arms 19 and 19 that support the side plates 54 and 54 so as to be inclined inward. Since the position is on the rotation trajectory of the take-up auger 20 behind the rotation trajectory of the tines 56 of the take-up reel 18 as viewed from above, the reel support arms 19 and 19 and the rotation support shaft 53 are attached at the corners of attachment. The coming cereal is not caught by being guided inside by the corner guide 2.
FIG. 4 shows another embodiment of the mounting structure of the plate body 1, and a mounting plate 1 b provided with a plurality of fixing positions is fixed to the left and right side portions of the rotation support shaft 53, and the plate body 1 is placed in front of the mounting plate 1 b. The tilted state, the rearward tilted state, and the rearward tilted state can be fixed. When the plate body 1 is fixed in a backward-tilted state, it can be used as a so-called hand-operated workbench when the cereals harvested by the operator are temporarily placed on the plate body 1 and put into the driving auger 20.
The scraping auger 20 provided in the left and right support frames 15, 15 is formed to have the same length as the cutting width of the reaping device 16 and is provided horizontally, and both ends thereof are attached to the left and right support frames 15, 15 on the horizontal shaft 55. Bearings that support the bearings in the feeder case 22 and a scraping finger provided at an appropriate distance from the right and left. The scraping finger protrudes ahead of the tip of the reaping device 16 and pulls in the cereal. The harvested cereal rice cake is collected at the entrance of the feeder case 22 provided near the right side of the table 14 while being scraped with the spiral and the picking finger with the rotation.
The feeding start end of the feeder 21 in the feeder case 22 faces the back of the stirrer auger 20, and the transporting end part is provided in communication with the cereal supply port of the threshing device 60. The harvested cereal meal is conveyed to the supply port of the threshing device 60 and supplied.
An inclined guide plate 58 is provided on the inner side of the lower portion of the horizontal frame 52 of the feeder case 22 so as to reinforce the inlet side of the feeder case 22 and prevent the cereals rolled up by the feeder 21 from protruding upward. invite. An extension line 58a that extends downward and forward of the inclined guide plate 58 does not cause the cereal grains that follow the feeder 21 to protrude rearward from the upper end of the cylinder of the take-up auger 20 to jump forward.
Further, the lower end of the upper surface 22a of the feeder case 22 is made higher than the upper surface 52a of the horizontal frame 52, and the reel support bracket 59 is also provided outside the lateral width of the feeder case 22, so that the upper surface 22a of the feeder case 22 is provided. The loaded cereals and dust do not accumulate and fall on the take-up auger 20 in the table 14 through the horizontal frame 52.
The vertical cutting blade device 5 is supported by a vertical cutting blade support arm 6 that stands up from the left support frame 15 and extends from the left support frame 15. This vertical cutting blade device 5 is erected directly behind or slightly above the inside of the weed ridge 17 on the front side of the main cutting device 16, and the crops to be entangled are vertically divided to be taken in by the scraping reel 18. While making it easy to perform, the crawler 11 does not step on uncut crops.
The vertical cutting blade device 5 can be adjusted in the front-rear direction, and is composed of a fixed blade and a movable vertical cutting blade. The L-shaped driving arm 8 and the vertical driving arm 9 fixed to the output shaft of the cutting blade drive case 7 are movable. Connected to the vertical cutting blade, the movable vertical cutting blade swings up and down.
5 to 8, the scraping reel 18, the main cutting device 16, and the vertical cutting blade device 5 are removed, and the low belt composed of a pair of left and right lug belts 62, 62 extending from the lower cutting blade 73 to the upper side. A general-purpose combiner is shown which is configured in the pre-cutting processing device 13 which is provided with three sets of cropping devices 80 in the horizontal direction, and which holds a low-pipe stalk such as a bean or buckwheat from both sides and conveys it while being held.
The row cropping device 80 is configured so that each set moves up and down as a set, one set on the left side and two sets on the right side or two sets on the left side and one set on the right side.
For example, as shown in FIG. 5, a pair of weed baskets 17 and 17 provided at the front contact position on the left side, a pair of left and right scraping lug belts 62 and 62, and a low cutting blade 73 and a gauge wheel 63 pivoted on the front part, and a pair of weed fences 17 and 17 provided at the ground contact position on the right side on the right side, and a stiff lug belt provided on the part following each 62, 62, a cutting blade 73 at a low position, and a gauge wheel 63 pivoted at the front part are moved up and down as an integrated assembly, and the table 14, the auger 20 at the rear part, and the feeder 21 at the rear side are raised. The cutting pretreatment device 13 is configured.
As shown in FIG. 5, the pair of left and right scraping lug belts 62 and 62 constituting the row crop device 80 are provided with a conveyance lug 65 at predetermined intervals on the belt, and the conveyance lugs 65 are directed inward from the left and right. It is arranged facing each other, and the stems are wound in a clamped state from both the left and right sides so that they can be conveyed, but in that arrangement, as shown in the drawing, each conveyance lug 65 is directed to the conveyance direction (rear) And has a receding angle. As shown in FIG. 6, the pair of left and right scraping lug belts 62, 62 has two upper and lower drive pulleys that are pivoted on the upper end of a support cylinder 64 whose lower end is fixed to the table 14. It winds around 61 and 61, and the conveyance start end side is wound around floating pulleys 67 and 67 pivotally mounted on the tip ends of two upper and lower support frames 66 and 66.
Then, as shown in FIG. 6, the pair of left and right scraping lug belts 62, 62 are lowered so that the conveyance lug 65 reaches near the ground surface on the conveyance start end side, and is inclined in a side view with the conveyance end portion side raised. It is configured.
In the case of the embodiment, the pair of left and right scraping lug belts 62 and 2 are constructed so that the left and right ones are provided with a slight step up and down, and project from the outer side toward the inner side. The lugs 65 cross each other vertically (overlapping in a plan view and can pass through the same conveyance path). With this configuration, the left and right transport lugs 65 can be prevented from interfering or colliding during rotation.
The pair of left and right scraping lug belts 62 and 62 are entirely covered with a belt cover 68. In this embodiment, the left and right weed ridges 17 and 7 at the front are connected to the pair of left and right scraping lugs. The lug belts 62, 2 are connected to left and right support frames 66, 66 around which idle pulleys 67, 67 are pivoted. In this case, as shown in FIG. 5, the left and right support frames 66, 66 are provided with a left weed basket 17 and a left take-up lug belt 62 (with a floating pulley 67 bearing) on the left side. Similarly, on the right side, similarly, the right weed ridge 17 and the right take-up lug belt 62 (bearing the floating pulley 67) are attached and supported. The left and right support frames 66 and 66 are connected to each other in a pivoted state by a connection frame 70 disposed across the lower side of the pedicle conveyance path 69 formed between the pair of left and right scraping lug belts 62 and 62. Are integrated.
The pair of left and right scraping lug belts 62, 62 integrated as described above are transported with the center portion of the drive pulleys 65, 65 pivoted on the upper portion of the support cylinder 64 at the rear of the transport as a pivot point P. The start end side can be adjusted to rotate in the left-right direction. In this case, the support cylinder 64 is omitted in a specific drawing, but an arc-shaped long hole is formed on the lower side of the rotating support cylinder 64 and provided on the fixed side (table 14 side). It is configured to be fixed freely with a set screw. Therefore, the rotation lug belts 62 and 62 can be adjusted in rotation within the range of the arc-shaped elongated hole formed in the lower portion of the support cylinder 64, and can be fixed with the locking screw. In this case, the left and right support frames 66 and 66 are connected to each other in a pivoted state by a connection frame 70 and are assembled in a parallel link shape.
Then, as shown in FIGS. 7 and 8, the stock guide plate 71 is disposed so as to close a space formed between the front connection frame 70 and the rear table 14, and the front portion is connected to the connection frame 70. The attachment and the rear part are extended and fixed to the table 14 side. In this case, the transportation line H of the stalk / stock stock has a relationship of passing over the stock guide plate 71 as indicated by a virtual line in FIG. A slide cylinder 81 is provided below the stock guide plate 71 for adjusting the distance from the right row crop device 80 by sliding the left row crop device 80 sideways. By operating the slide cylinder 81, the interval between the left row crop device 80 and the right row crop device 80 can be adjusted to the interval between the vegetation on which the vegetation grows.
Next, the disc cutting blade 73 is configured to be driven by being transmitted from the hydraulic motor 75 to the drive sprocket 77 via the chain 76, as can be seen from FIG. As shown in FIG. 5, the disc cutting blade 73 is arranged so as to be pivotally attached to the vertical axis for each cutting row, and is held by the conveying lugs 65 of the pair of left and right scraping lug belts 62 and 62. It is configured to mow the stems and stems being transported. The disc cutting blade 73 is supported by the left support frame 66 described above, and is configured so as to be adjusted and moved in the lateral direction integrally with the row cropping device 80 so as not to deviate the related position.
Next, as shown in phantom lines in FIGS. 6 and 7, the ground height of the row crop device 80 is determined by adjusting the gauge wheel 63 up and down. 1 and FIG. 2, the take-up auger 20 is horizontally mounted on the rear upper portion of the table 14, and as shown in the figure, a conveying spiral 78 is wound around the outer periphery, The structure is configured such that the stems are conveyed from the front side while being scraped and are fed to the feeder 21 by the take-up crank fingers 79 when reaching the feeder 21 side.
The feeder 21 is provided with the start end facing the stirrer auger 20 as described above, and the end is connected to the threshing device 60 above the rear and connected to the supply unit of the handling room. Is configured to be put into the threshing device 60.

DESCRIPTION OF SYMBOLS 1 Plate body 2 Corner guide 14 Table 18 Take-in reel 19 Reel support arm 20 Take-in auger 22 Feeder case 22a Upper surface 52 Horizontal frame 52a Upper surface

Claims (5)

In a general-purpose combine in which a take-up reel (18) is provided on an upper part of a table (14) on which a take-up auger (20) is horizontally mounted so as to be adjustable up and down, the table (14) has a rear upper part of the table (14). A plate body (1) extending substantially in the left-right width is provided so as to be able to rotate back and forth, and the front and rear rotation of the plate body (1) is interlocked with the raising and lowering of the take-up reel (18), so that the take-up reel (18) Is lowered, the plate (1) is rotated forward to cover the upper portion of the table (14), and when the take-up reel (18) is raised, the plate (1) is rotated rearward to rotate the table (14). A general-purpose combine harvester characterized in that it is configured to receive the tip side of the grain pod supplied therein. The general-purpose combine harvesting device according to claim 1, wherein the plate (1) is attached to a reel support arm (19) for supporting the take-up reel (18) so as to be pivotable back and forth. The general-purpose combine harvesting device according to claim 1 or 2, wherein the plate (1) is formed of a transparent material. The corner guide (2) which guides the cereal supplied into the table (14) to the transfer action area of the auger (20) is provided at the base of the reel support arm (19). The general-purpose combine harvester described in 1. The upper surface (22a) of the feeder case (22) is made higher than the upper surface (52a) of the horizontal frame (52) provided at the rear upper part of the table (14). The general-purpose combine harvester described.

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