JP2004261185A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester capable of properly transferring such long culm as hanged on a raising case by smoothly taking in the culm behind the raising case with large pulling action power. <P>SOLUTION: This combine harvester comprises the raising case for raising unreaped culm, a raking belt for raking in the raised culm, a cutting blade for cutting the stem side of the raked culm, a right transfer mechanism for transferring the cut culm on the right side, a central transfer mechanism for leading the cut culm in the center into the right transfer mechanism, a left transfer mechanism leading the cut culm on the left side into the right side transfer mechanism, a transfer chain for receiving the gathered culm and transferring to a feed chain, an upper transfer body transferring tips of the culm in the thresher inlet direction and a tip transfer mechanism set at an opposed position above the transfer mechanism and for transferring the culm. In the combine harvester, the tip transferring mechanism is set at the opposed position, and feed directions of tines 64a72a/66a73a/68a74a each in mutual opposition are made in the same direction. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a combine in which grain culms harvested in a cutting section are threshed in a threshing section.

  Conventionally, a raising case for erecting an uncut culm, a squeezing belt for squeezing the raised stalk, a cutting blade for cutting the culm base side of the stalked culm, and a right-side culm after cutting. The right transport mechanism to transport, the left transport mechanism to join the left cereal culm to the right transport mechanism, the transport chain to transfer the culm to be merged to the feed chain, and the tip side of the culm to merge There is a technique provided with an upper conveying body that conveys in the direction of the threshing entrance and a head conveying mechanism that is provided above the conveying mechanism and conveys grain culm. (For example, see Patent Document 1)

JP-A-5-123037

  Usually, the tip-head transport mechanism is arranged above the upper transport mechanism, and the transport direction is the same. Therefore, there is a problem that grain culms and the like caught in the raised case cannot be transported sufficiently.

  Therefore, the present invention provides, as claimed in claim 1, a raising case for erecting an uncut grain culm, a scraping belt for scraping the raised grain culm, and a cutting blade for cutting the stem side of the scraped grain culm. And a right transport mechanism for transporting the right cereal stem after cutting, a central transport mechanism for joining the central cereal stem to the right transport mechanism, and a left transport mechanism for joining the left cereal stem to the right transport mechanism. A transfer mechanism, a transfer chain that transfers the confluent grain culm to the feed chain, and an upper conveyer that conveys the spike side of the confluent cereal stem in the threshing inlet direction, and is provided at an opposing position above the transfer mechanism. In a combine provided with a head transport mechanism for transporting grain stems, a tip transport mechanism is provided at a position facing the transport mechanism, and the feed directions of the tines in a mutually facing relationship are set to the same direction.

  The invention according to claim 1 is a raising case for erecting an uncut culm, a squeezing belt for squeezing the raised culm, a cutting blade for cutting the culm base side of the squeezed cereal, and after cutting. A right transport mechanism for transporting the right cereal stem, a central transport mechanism for joining the central cereal stem to the right transport mechanism, and a left transport mechanism for joining the left cereal stem to the right transport mechanism. A transport chain that transfers and conveys the combined grain culm to the feed chain, an upper transport body that conveys the spike side of the combined grain culm in the threshing inlet direction, and a grain culm provided at an opposing position above the transport mechanism. In a combine provided with a head transport mechanism for transporting, a tip transport mechanism is provided at a position facing the transport mechanism, and the feed directions of the tines in a mutually facing relationship are made to be the same direction, for example, the hook is hooked on a raising case. Long grain culm is conveyed to the upper part and ear tip Behind the cause case with a large pull-out force acting structure can be incorporated smoothly, it is capable of performing proper conveyance.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory plan view of a grain culm upper conveying section, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view of the combine, in which (1) is a track frame on which a traveling crawler (2) is mounted; Reference numeral 3) denotes a machine installed on the track frame (1), and reference numeral (4) denotes a threshing machine in which a feed chain (5) is stretched to the left and a handling cylinder (6) and a processing cylinder (7) are built in. Threshing unit, (8) a cutting unit including a cutting blade (9) and a culm transport mechanism (10), (11) a hydraulic cylinder for raising and lowering the cutting unit (8) via a cutting frame (12), 13) is a straw processing unit that faces the end of the straw chain (14), (15) is a grain tank that carries the grains from the threshing unit (4) through a fryer (16), and (17) is a grain tank. A discharge auger for carrying out the grains of the tank (15) out of the machine, (18) a driving operation part (19) and a driving seat ( Driving cabin with a 0) are configured to threshing harvests (21) the driver cabin (18) an engine provided below, continuously culms.

  Further, as shown in FIGS. 4 and 5, (22) in the figures is a handling room in which an axial-flow-type handling cylinder (6) that is suspended in the longitudinal direction of the fuselage, and (23) is the handling room ( A handle for inserting a grain stalk into 22), a crimp net 24 extending under the handling chamber 22, and a crimping net 25 swinging back and forth with the front end facing downward under the crimping net 24. A swinging sorting machine movably supported, (26) and (27) are front and rear feed pans of a sorting machine (25) arranged in two stages above and below the crimping net (24), and (28) is a front feed pan. (26) A sorting sieve line provided on the rear end side so as to be swingable up and down, (29) a chaff sheave continuously provided behind the rear end of the rear feed pan (27), and (30) a chaff sheave (29) below. The grain sieve (31) is a pump that feeds a sorting wind between the front and rear feed pans (26) and (27). Dust fan, which is a fan, (32) is a main blower that feeds a separation wind between the chaff sheave (29) and the Glen sheave (30) and below the Glen sheave (30), and (33) is a dusting cylinder ( No. 1 conveyor for taking out the grains to the grain tank (15) by communicating with 16), and (34) for the sorting machine (25) of the sorting machine (25) via a No. 2 reduction conveyor (35) which is a No. 2 reduction device. No. 2 conveyor returning to the upper part of the sieving line (28), and (36) a suction / discharge fan arranged above the rear end of the sorter (25), which is provided by the handling cylinder (6) and the processing cylinder (7). The threshed grains are sorted by a rocking sorter (25), and only the sized grains are taken out to the grain tank (15), and the straw is sent to a straw processing unit (13) via a straw chain (14). And let it drain out of the machine after being cut by the straw cutter (37). It is configured to.

  As shown in FIGS. 6 and 7, the sieving line (28) is formed by bending a linear body (28a) having a round cross section into a gate shape and fixed to a swinging shaft (28) of a sorting machine (25). The wire body (28a) is fixed to the sieve wire receiver (39) in a comb shape over the entire width of the sorting board (25) at substantially equal intervals, and left and right side walls (25a) of the sorting board (25). A swing shaft (38) is rotatably inserted between (25a) and supported through a sieve wire receiver (39) of the swing shaft (38) via a holding plate (40) and a bolt (41). The base end of (28) is clamped and fixed.

  The rocking sorter (25) has a rear roller (42) rotatably supported on a threshing side plate (43) via a rocking drive shaft (44) and a crankshaft (45). A roller (47) on the front side of the sorter (25) is fitted to and supported by a guide rail (46) having a U-shaped cross section which is inclined and fixed to the inner surface of the base (43) in a front-rear and rear-height manner. ), An elliptical locus having a small vertical width and a large front-rear width, with the rear side being a circular motion about the axis (44) and the front side being a linear motion along the guide rail (46). In (48), the sorting board (25) is configured to swing back and forth and up and down.

  Then, the swing roller (50) of the sieving line (28) is fitted to a guide rail (49) having a U-shaped cross section which is fixed to the inner side surface of the left threshing side plate (43) so as to be inclined forward and rearward and low. The roller shaft (53) of the rocking roller (50) is engaged and supported at the tip of a rocking arm (51) fixedly provided on the left end of the rocking shaft (38) via a long hole (52). When the sorting board (25) swings, the swing roller (50) is caused to move linearly along the guide rail (49), and the swing arm (51) swings about the shaft (38). The sifting line (28) is configured to swing vertically about an axis (38).

  Further, the dust feeding fan (31) is provided at a position below the front feed pan (26) and in front of the Karamin (32), and outside the Karamin case (54) of the Karamin (32) and the front feed pan (26). ) Is covered with the fan case (55) of the dust sending fan (31) to open the air outlet (56) between the front and rear feed pans (26) and (27), while the air outlet (56) is located above the Karamin (32). Is provided with a rear feed pan (27), and blows air (57a) (57b) for supplying a separation wind between the chaff sheave (29) and the Glen sheave (30) and below the Glen sheave (30), respectively. At the top and at the rear of the sifting line (28) and the cereal and dust falling directly from the crimping net (24). Dropped from (30) Grain and dust in the sorting wind from winnowing fan (32) separately reacted respectively configured to stabilize improve sorting performance to. Further, the upper and lower sieving action of the sieving line (28) can promote the dispersal of grains and dust in the rear feed pan (27) and the chaff sheave (29), and the second sieving line is located above the sieving line (28). The reduction port (35a) of the reduction conveyor (35) faces the reduction port (35a) so that the second reduction product can be dispersed and the processing of large-capacity grains can be effectively performed within a limited sorting width. Things.

  As shown in FIGS. 8 and 9, the cutting section (8) is a six-row raising case (60) having a raising tine (59) for raising an uncut culm stem which is taken in through a weeding plate (58). A star wheel (61) and a scraping belt (62) for scraping the stem side and the tip side of the raised grain stem, a cutting blade (9) for cutting the stem side at the time of scraping, and cutting. The lower right transport chain (63), which is a transport mechanism that transports the culm base side of the right two-row grain culm to the left diagonally rearward, and the diagonal tip of the right two grain culm to the left diagonally rearward Upper right transport body (64) having an upper right transport tine (64a), which is a transport mechanism to perform, and a lower right transport chain (63) and an upper right portion on the rear side of the culm side and the tip side of the grain culm for two central rows. A lower central transport chain (65), which is a transport mechanism that joins near a feed intermediate position of the transport body (64); A central upper transport body (66) having an upper central transport tine (66a) and a lower right transport chain (63) and an upper right transport body (64) for feeding the culm side and the tip side of the two left-handed grain culms. It merges with the upper left transport body (68) having the lower left transport chain (67) and the upper left transport tine (68a), which is a transport mechanism that joins near the end position, and the feed end of the lower right transport chain (63). A vertical transport chain (69) that inherits and transports the stem side of the 6-row grain culm to the feed start end of the feed chain (5), and a 6-row portion that joins the feed end of the upper right transport body (64). Rear upper transport body (70) having a rear upper transport tine (70a) for transporting the front end of the grain culm in the threshing inlet direction, and feed ends of the rear upper transport body (70) and the vertical transport chain (69). The feed chain is installed at approximately the center of the 5) An auxiliary transport chain (71) for inheriting the cereal culm in an appropriate posture, and provided at an opposing position above each of the upper transporters (64), (66), and (68), and slightly below the spike of the cereal culm. Right, center, left ear tip transfer bodies (72), (73), (74), which are front tip transfer mechanisms having right, center, left ear tip tines (72a), (73a), (74a), respectively. The culm base side and spike side of the six grain culms obtained are received by the vertical transport chain (69) via the chains (63) (65) (67) and the transporters (64) (66) (68). It is configured to be connected and supplied to the threshing unit (4) for threshing.

  As shown in FIGS. 1, 10 and 11, the spike carrier (72), (73), (74) and the feeding action side of each upper carrier (64), (66), (68) are provided in opposition. The feeding tine (64a) (72a) / (66a) / (73a) / (68a) / (74a) of each combination has the same feed direction. The input shaft (76) of (75) is connected to the horizontal drive shaft (78) of the horizontal drive case (77) at the upper end of the raise case (60) and the branch shaft (80) of the branch case (79). The input shafts (81), (82), and (83) of the transport bodies (72), (73), and (74) are linked to each other.

  The branch case (79) is provided on the upper rear side of the raising case (60) to drive the raising tines (59) of these cases (60). An upper end of the case (60) is connected, and an output shaft (85) for driving the tine chain (84) of the tine (59) is provided at a lower end of the case (60), and a branch shaft in the branch case (79) is provided. The upper end of (80) is connected to the lateral drive shaft (78) via a pair of bevel gears (86), and the lower end is connected to the output shaft (85) via a pair of bevel gears (87). It is configured to drive the raising tine (59) of 60).

  The spike carrier (72) (73) (74) is connected and supported at the lower ends of the second and third branch cases (79) from the left side and the second branch case (79) from the right side. The input shafts (81), (82), and (83) of 73 and 74 are linked to each output shaft (85) via a universal joint (88), so that each tip tine (72a) (73a) (74a). , Respectively.

  In a plan view, the tip carriers (72), (73), and (74) are disposed at positions facing the upper carriers (64), (66), and (68), respectively, and the tines (64a) in a mutually facing relationship. By making the feed directions of (72a), (66a), (73a), (68a), and (74a) the same direction, the pulling action force of the grain stalks caught on the raising case (60) to the rear is increased. At the same time, the tip transfer tine (72a), (73a), (74a) is used to transfer the position slightly below the neck of the cereal stem to reduce shedding, and to raise the tip so that each tip is conveyed near the lower position of the drive case (77). The bodies (72), (73), and (74) are arranged to increase the pulling force of the cereal stems caught on the drive case (77), and the upper and lower transporters (63) to (68) are used. Smooth transport of grain stalks without trapping in the Y-shaped transport path (89) to be formed It is obtained by configured to enable.

  As is clear from the above, a raising case (60) for erecting an uncut culm, a squeezing belt (62) for squeezing the raised stalk, and a cutting for cutting the culm side of the stalked culm. The blade (9), the lower right transport chain (63) and the upper right transport body (64), which are the right transport mechanism for transporting the cut right grain culm, and the right transport mechanism (64) 64), a lower central transport chain (65) and a central upper transporter (66), which are central transport mechanisms, and a left transport mechanism for joining the left culm to the right transport mechanisms (63) and (64). The lower left transfer chain (67) and the upper left transfer body (68), the transfer chain (69) for transferring the culm to be merged to the feed chain (5), and threshing the tip side of the culm to be merged. An upper transport body (70) for transporting in the entrance direction, and the transport mechanism (64) (66) 68) and a head transport mechanism (72), (73), (74) provided at an opposing position to convey the grain culm, wherein the ear is located at a position opposing the transport mechanism (64) (66) (68). The transport mechanisms (72), (73), and (74) are arranged, and the feed directions of the tines (64a), (72a), (66a), (73a), (68a), and (74a) that are opposed to each other are made the same. For example, a long grain stalk that is caught in the raising case (60) is pulled out of the opposing upper part and the ear tip transport mechanisms (64), (72), (66), (73), (68), and (74). It can be smoothly taken in behind the raising case (60) by the acting force, and can be properly transported. Further, right, center, and left transport mechanisms (63) to (68) for transporting the cereal stem after the root of the stock is cut by the cutting blade (9), and an ear transport mechanism (72) to ( 74), the drive input system path can be changed, and the drive speed of the raising case (60) and the head tip transfer mechanisms (72) to (74) can be switched to a speed suitable for the properties of the uncut kernels. When the speed of raising the cereal stem is changed, it is possible to eliminate the problem that the speeds of the transport mechanisms (63) to (68) change in conjunction with each other, and the raising mechanism and the transport mechanisms (63) to (68) operate. Can be properly performed at an independent speed.

Plane explanatory drawing of a grain stem upper conveyance part. The whole side view of a combine. The whole top view of a combine. Sectional drawing of a threshing part. Side explanatory drawing of a rocking sorting part. Plane explanatory drawing of a sieve line part. Side explanatory drawing of a sieve line part. Side explanatory drawing of a reaping part. FIG. 3 is an explanatory plan view of a reaping conveyance system. Side explanatory drawing of a tip carrier. Drive system explanatory drawing of a head conveyance body.

Explanation of reference numerals

(5) Feed chain (9) Cutting blade (60) Raising case (62) Scraping belt (63) (65) (67) Transport chain (transport mechanism)
(64) (66) (68) Carrier (transport mechanism)
(64a) (66a) Transport tine (69) Vertical transport chain (70) Rear upper transport body (72) (73) (74) Transport body (transport mechanism)
(72a) (73a) (74a) Transport tines

Claims (1)

  Raising case (60) for raising uncut culms, squeezing belt (62) for squeezing the raised culms, cutting blade (9) for cutting the culm base side of the stalked culms, and cutting A right transport mechanism (63) (64) for transporting the subsequent right culm, a central transport mechanism (65) (66) for joining the central cereal culm to the right transport mechanism (64), and a left side Transport mechanisms (67) and (68) for merging the grain culm with the right transport mechanisms (63) and (64); and a transport chain (69) for inheriting and transporting the grain culm to the feed chain (5). An upper conveying body (70) for conveying the tip side of the merging culm in the threshing inlet direction, and a front end conveyer provided at an opposing position above the conveying mechanisms (64), (66) and (68) to convey the culm. In a combine including the mechanisms (72), (73), and (74), the transport mechanisms (64), (66), ( The tip conveying mechanisms (72), (73), and (74) are arranged at the opposing positions of 8), and the tines (64a), (72a), (66a), (73a), (68a), and (74a) are in a mutually opposing relationship. A combine characterized in that the feed direction is the same.

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