JP3846038B2 - Combine grain transfer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, Ru der relates grain transfer device co Nbain.
[0002]
[Prior art]
For example, when harvesting with a combine, the harvested culm harvested with the combine harvester is fed to the threshing machine and threshed, and the threshed and sorted grain is fed into the temporary grain storage tank. The stored grain is discharged out of the machine by the stretchable grain transfer device. When the discharge position is far from the combine at the time of this discharge, the stretchable grain transfer device A movable transfer cylinder is extended from the fixed transfer cylinder, and by this extension, each transfer spiral inside the transfer cylinder is extended. The grains are transferred in the fixed transfer cylinder by the transfer spiral built in the fixed transfer cylinder, and are taken over by the transfer spirals for movement. It is transferred and discharged out of the machine.
[0003]
[Problems to be solved by the invention]
If the transfer cylinder is moved to the contracted state during the discharge operation by extending the transfer cylinder, the gap between the spiral plates of the transfer spirals to be polymerized is close to 0, and therefore the contracted state is reached. When activated, it can happen that the grain that is being discharged remains in the transfer cylinder, which is crushed and damaged, or because of the residual grain that remains in large quantities. However, the present invention is intended to solve these problems by the present invention.
[0004]
[Means for Solving the Problems]
Therefore, the present invention is the movement transfer cylinder moving spiral shaft (54) as well as interior fixation helix shaft fitted with a transfer feed spiral (51) and (52) to the fixed transfer cylinder (47) (49) and decorated, provided movably inserted into the outer peripheral portion of the moving transfer tube (49) a fixed transfer cylinder (47), moving the transfer spirals both ends of the movable spiral shaft (54) ( 55a, 55c) and a plurality of intermediate moving transfer spirals (55b) between the moving transfer spirals (55a, 55c) on both ends. Outer spiral bosses (57b, 58b ) and outer spiral bosses (57b ) in which the transfer spirals for movement (55a, 55c) and the intermediate transfer spirals ( 55b ) are provided on the outer periphery of the bosses in the spiral (57a, 58a ). , spiral plate provided on the outer periphery of 58b) (57c) How each spiral plate configurations to a plurality of moving transport helix of the intermediate portion from (55b) (57c) and by each of polymerizing, spiral the boss in the movement for transporting the spiral of the intermediate portion (55b) of (58a) the structure of the combine grain transport device, characterized in that which is configured by providing a clearance (M) between the inner diameter portion of the outer peripheral portion and the spiral plate (57c).
[0005]
[Effects of the Invention]
When harvesting with a combine harvester, the harvested cereals harvested with this combine harvester are fed to the threshing machine and threshed, and the threshed and sorted grains are fed into the temporary storage tank and stored. The stored grain is discharged out of the machine by the stretchable grain transfer device. If the discharge position is far from the combine at the time of the discharge, the stretchable grain transfer device can move freely. The transfer cylinder 49 is extended from the fixed transfer cylinder 47, and the transfer transfer spiral 55b built in the transfer cylinder 49 is extended by this extension. The grains are transferred through the fixed transfer cylinder 47 by the transfer spiral 51 built in the fixed transfer cylinder 47 and taken over by the transfer spirals 55b. The transfer spirals 55b move the grains. The inside of the transfer cylinder 49 is transferred and discharged out of the machine.
[0006]
Further, when the extended transfer tube 49 is contracted while the grain is being discharged, the transfer spirals 55b incorporated in the transfer tube 49 are superposed and contracted. The grains that are sandwiched between the spiral plates 57c of the transfer spirals 55b that are polymerized in this contracted state and are about to be crushed are mounted with the inner diameter portion of the spiral plate 57c and the spiral plate 57c. It moves from the gap M provided between the outer diameter part of the spiral inner boss 58a to the spiral plate 57c side with fewer adjacent grains.
[0007]
【The invention's effect】
When the grain is being discharged, the extended transfer tube 49 is shrunk, and each transfer helix 55b in the transfer tube 49 is polymerized into a contracted state. The grains that are sandwiched between the spiral plates 57c of the transfer spiral 55b and are about to be crushed move from the gap M to the spiral plate 57c side with fewer adjacent grains, and thus the grains are crushed and damaged. In addition, since the remaining grain becomes uniform between the spiral plates 57c, the transfer cylinder 49 can be smoothly contracted.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The stretchable grain transfer device 3 provided on the upper side of the grain storage tank 8 that discharges the grain stored in the grain storage tank 8 mounted on the threshing machine 2 placed on the combine 1 will be illustrated and described. .
[0009]
A traveling device 6 in which a pair of left and right traveling crawlers 5 traveling on the soil surface is stretched is disposed below the chassis 4 of the combine 1. The upper part of the chassis 4 is held by a feed chain 7 and conveyed. The threshing machine 2 equipped with a grain storage tank 8 that threshs the harvested cereal grains, selects and collects the threshed grains, and temporarily stores them is placed on the side.
In the front part of the threshing machine 2, a weeding body 9 for weeding napped cereals from the front end position, a pulling device 10 for raising the weeded cereals, and a cutting blade for cutting the raised cereals The reaper 13 provided with the apparatus 11 and the cereal scraping and transporting device 12 for conveying the harvested culm and delivering it to the feed chain 7 is movable up and down with respect to the soil surface by a hydraulically driven telescopic cylinder 14. It is set as the structure which acts on.
[0010]
On the threshing machine 2 side, an operating device 15 for controlling the operation of the combine 1 and a cockpit 16 on which an operator is boarded are provided. Installs the grain storage tank 8. The traveling device 6, the threshing machine 2, the reaping machine 13, the engine 17, and the like constitute a body 18 of the combine 1.
[0011]
The presence / absence of supply of cereal to the threshing machine 2 is detected in the culm transport route formed by the culm scraping and transporting device 12 of the reaper 13 by contacting the culm that is harvested and transported. A cereal sensor 19 is provided. A vehicle speed sensor 21 for detecting a traveling vehicle speed based on the output rotational speed is provided in the transmission path of the traveling mission 20 mounted on the front end of the chassis 4.
[0012]
As shown in FIG. 8, the threshing machine 2 is provided with a threshing chamber 22, a dust disposal chamber 23, and a second processing chamber 24 on the upper side, and a sorting chamber 25 on the lower side. It is. In the threshing chamber 22, various handling teeth 26 a are mounted, and a handling cylinder 26 for threshing the harvested cereal meal is axially installed in the front-rear direction.
In a second processing chamber 24 positioned parallel to the right side of the threshing chamber 22 in plan view, the reduced non-threshing processed product (second product) is processed while being transferred forward, and the sorting chamber. The second transfer spiral 27a is sequentially disposed from the transfer start end to be discharged to 25, the second treatment cylinder 28 equipped with a number of treatment teeth 27b and the second discharge blades 27c, and the dust treatment chamber 23 positioned on the rear side. Inside, a part of the unthreshed product supplied from the threshing chamber 22 is re-processed while being transferred backward, and the dust-removing spiral 29a, a large number of treatment teeth 29b, and dust discharge A dust removal treatment cylinder 30 fitted with the blades 29c is coaxially mounted on the shaft.
[0013]
A feed chain 7 for gripping the harvested cereal rice cake and a holding rice cake 31 are arranged along the left side handle 26b of the threshing chamber 22 from the lower part of the outer peripheral edge of the tooth handling 26a to the barrel cover 32. A handle net 26c surrounding the space between the lower end of each of the processing teeth 27b and 29b with a stepped portion and a leaking tool 33 having rod-like members provided at predetermined intervals; A receiving network 34 is provided. A dust exhaust outlet 33a for exhausting waste material processed in the dust removal processing chamber 23 and waste material such as a slasher is provided on the transfer terminal end side of the leaking tool 33. A second discharge port 34 a for discharging a part of the processed product threshed in the second processing chamber 24 is provided on the transfer terminal end side of the receiving net 34.
[0014]
In the sorting chamber 25, threshing leaked from the handling net 26c, processed material leaked from the leaking tool 33 and the second receiving net 34, and processed material discharged from the second discharge port 34a, A swing sorting device 35 is provided along the axial direction of the handling cylinder 26 to receive supply of dust discharged from the dust discharge outlet 33a and swing and sort while being transported. The swing sorting device 35 is provided with a transfer shelf 36a, a chaff sheave 36b, and a stroller 36c sequentially from the front, and a glenshave 36d is provided below the chaff sheave 36b. The chaff sheave 36b adjusts the transfer angle. It is configured so that the amount of leakage can be adjusted.
[0015]
A blower 37 in which a blower blade 37a is rotatably mounted is provided at the lower part of the swing direction sorting device 35 in the transfer direction start end side (upper side), and the sorting air generated by the blower 37 is blown to send grains. 37b is a wind split.
The lower end portion of the blower 37 is connected to the upper side of the first receiving bar 39b that accommodates the grain that flows down from the first sorting shelf 38 and feeds it horizontally through the first helix 39a. The side is connected to the lower end of the first sorting shelf 38, and the unthreshing processed product (second product) that is sorted down from the second sorting shelf 40 is placed near the upper end of the first sorting shelf 38. The upper end portion of the upper side of the second receiving rod 41b to be laterally fed is placed in an overlapping state with an appropriate interval by the second spiral 41a, and the upper end portion of the second sorting shelf 40 is It is the structure opened to the outside.
[0016]
The grain that is laterally fed by the first spiral 39a is taken over by a cerealing device (not shown) or the like, and is transported into the grain storage tank 8 to be stored.
The threshing machine 2 has a second reducing cylinder 42a that is equipped with a lifting spiral 42b that takes over the unthreshing processed product (second product) that has been laterally fed by the second spiral 41a and feeds it into the second processing chamber 24. The configuration is obliquely provided on the right side of the plane view.
[0017]
A dust exhaust fan 43 that discharges both the sorting air from the blower 37 and the sorting dust generated by the swing sorting of the swing sorting device 35 to the outside of the transfer terminal portion of the swing sorting device 35 is provided. It is a configuration.
The bottom of the grain storage tank 8 is provided with a transverse transfer helix 8a for laterally feeding the stored grain in the front-rear direction, taking over the horizontally fed grain, and passing through the joint case 44. A threshing support cylinder 45a having a vertical transfer spiral 45b to be converted is rotatably provided in a vertical posture so as to be supported on the rear side of the grain storage tank 8 above the joint case 44. It is the structure which provided the expansion-contraction grain transfer apparatus 3 which the whole length expands / contracts over the front-back length of the combine 1, and discharges | emits a grain outside the machine, using the upper end part of 45a as a fulcrum.
[0018]
The elastic grain transfer device 3 includes a fixed transfer cylinder 47 attached to a joint metal 46 as shown in FIGS. 1 to 6, and a movable transfer cylinder that is inserted into the outer peripheral portion 48 of the fixed transfer cylinder 47 to be movable. 49 and a moving device 50 for moving the transfer cylinder 49 for movement.
As shown in FIG. 5, a fixed spiral shaft 52 having a transfer spiral 51 mounted on the outer peripheral portion is internally provided at the transfer terminal portion of the fixed transfer cylinder 47, and the inner diameter portion of the fixed spiral shaft 52 has a hexagonal shape. And an auxiliary shaft 53 having a hexagonal insertion hole 53a smaller than the insertion hole 52a is fixed to the inner diameter portion of the fixed helical shaft 52 at the transfer end. Provided.
[0019]
The outer diameter portion of the transfer end portion of the fixed transfer cylinder 47 is inserted into and supported by the inner diameter portion of the outer peripheral boss of the joint metal 46, and the auxiliary shaft extends to the inner diameter portion of the bearing 46 a provided on the inner diameter portion of the joint metal 46. The outer diameter part 53 is inserted and pivotally supported. The transfer start end portion of the fixed spiral shaft 52 is configured to be pivotally supported by a receiving metal 46c provided inside the joint tool 46b.
[0020]
The outer shape of the joint metal 46 is configured such that an outer peripheral boss is formed in a circular shape, and the inner diameter portion of the transfer cylinder 49 is slid along the circular outer peripheral portion.
The moving transfer cylinder 49 is pivotally supported by inserting moving transfer spirals 55a and 55c at both ends of a hexagonal moving spiral shaft 54, and a plurality of moving transfer spirals 55a and 55c are provided between the moving transfer spirals 55a and 55c. Each moving transfer helix 55b is inserted and pivotally supported, and the moving helix shaft 54 is housed internally.
[0021]
The transfer end portion of the transfer tube 49 is formed in an L shape, and the transfer end portion is provided with a discharge port 49a. The transfer end portion of the moving spiral shaft 54 is supported on the upper portion of the discharge port 49a. A receiving metal 49b is provided for bearing, and as shown in FIG. 5, the inner diameter portion of the transfer start end of the inner boss 57a of the moving transfer spiral 55a is the outer shape of the auxiliary shaft 53 provided at the transfer end portion of the fixed spiral shaft 52. It is configured to be inserted into a part and supported by a bolt 53b, and the moving spiral shaft 54 moves back and forth within the auxiliary shaft 53 and the spiral boss 57a.
[0022]
A moving support metal 56b having a screw hole at the center is provided on the outer peripheral upper portion of the moving transfer cylinder 49, and rollers 56a rotatably supported by a support plate 56 are provided at three locations on the outer peripheral portion. Each roller 56a is configured to rotate and move in the front-rear direction on the outer peripheral portion 48 of the fixed transfer cylinder 47.
The moving transfer helix 55a has a hexagonal inner diameter, a circular outer diameter and a predetermined length, a spiral inner boss 57a having a bolt insertion screw hole on the transfer start end side, and an outer diameter portion of the inner spiral boss 57a. A fixed pipe shape, for example, a 1.5 pitch outer spiral boss 57b of the spiral plate 57c, and a 1.5 pitch long spiral plate fixed to the outer periphery of the spiral outer boss 57b. 57c and a reinforcing pin 57d provided on the transfer terminal end side of the spiral plate 57c.
[0023]
The one non-transfer side of the spiral outer boss 57b has the same shape as the non-transfer side base of the spiral plate 57c fixed to the spiral outer boss 57b, and the other transfer side of the spiral outer boss 57b corresponds to the spiral plate 57c. A predetermined width L is provided from the base portion of the spiral plate 57c to a transfer end portion from about 0.5 pitch position A point on the transfer start end side, and the same shape as the spiral plate 57c is formed. The transfer end portion is formed in a straight line, thereby forming an opening 57e portion, and a portion other than the later-described opening 58d portion of the outer spiral boss 58b of the moving transfer spiral 55b is inserted into this opening 57e portion. It is the structure to do.
[0024]
The inner diameter portion of the transfer start end of the inner spiral boss 57a of the moving transfer spiral 55a is inserted into the outer diameter portion of the auxiliary shaft 53 of the fixed spiral shaft 52, and then into the screw hole portion of the inner spiral boss 57a as shown in FIG. A bolt 53b is screwed and the transfer spiral 55a for movement is mounted. The bolt 53b has a configuration in which the movement of the moving spiral shaft 54 is made smooth so as not to push the outer diameter portion of the auxiliary shaft 53.
[0025]
The helical plate 57c of the moving transport helix 55a which is provided on the side of the transfer terminal end of the fixation helix shaft 5 2 is mounted on the transport helix 51, the transport helix 51, and moving the transfer helix 55b, 55c the helical plate also Ri O 57 c, or to increase the plate thickness, or a structure with improved wear resistance by heat treatment or the like.
Thus, the gap between the transfer helix 51 and the helix plate 57c of the transfer helix 55a is wide, and there is no problem in durability even if the grains are stagnated and the helix plate 57c is worn.
[0026]
The moving transfer helix 55b has a hexagonal inner diameter, a circular outer diameter and a predetermined length of a spiral inner boss 58a, and a pipe shape fixed to the outer diameter portion of the inner spiral boss 58a. For example, the spiral outer boss 58b having a length corresponding to 1.5 pitches, the spiral plate 57c having a length of 1.5 pitch fixed to the outer peripheral portion of the spiral outer boss 58b, and FIGS. 1 and 2 are shown. As described above, the stopper plate 58c provided on the transfer start end side of the spiral plate 57c, the reinforcing pin 57d provided on the transfer end portion side, and the like. The stopper plate 58c is provided at a substantially right angle to the axial direction of the in-spiral boss 58a. By providing the stopper plate 58c on the transfer start end side, the transfer of the grain is smooth. In addition, since it is provided at a right angle, no significant force is applied by the in-spiral boss 58a, so that the movement is smooth.
[0027]
The non-transfer side on one side of the spiral outer boss 58b has the same shape as the base on the non-transfer side of the spiral plate 57c fixed to the spiral outer boss 58b, and the transfer side on the other side of the spiral plate 57c A predetermined width L is provided from the base portion of the spiral plate 57c from the approximately 0.5 pitch position A point on the transfer start end side to the transfer end portion, and is formed in the same shape as the spiral plate 57c. The point up to approximately 1.0 hitch position B and the point A to the end of transfer are formed diagonally in a straight line, thereby forming openings 58d and 58d, and this opening 58d, A portion other than the opening 58d portion of the spiral outer boss 58b of the moving transfer spiral 55b and a portion other than the spiral outer boss 57b opening 59c described later of the moving transfer spiral 55c are inserted into the 58d portion.
[0028]
When the transfer helix 55b moves and polymerizes to the transfer helix 55a, a gap T is formed between the helix plate 57c of the transfer helix 55b and the helix plate 57c of the transfer helix 55a. When the transfer helix 55b for movement is moved and superposed on the transfer helix 55b for movement, a gap T is provided between the helical plates 57c and 57c of the transfer helix 55b for movement. It is configured.
[0029]
As shown in FIG. 1 and FIG. 2, the moving transfer helix 55b is formed so that a gap M is formed between the inner diameter portion of the spiral plate 57c and the outer diameter portion of the inner boss 58a. When the inner diameter portion of 57c is in contact with the outer diameter portion of the spiral outer boss 58b, it is cut and deleted to form a gap M. If there is a portion where a large amount of grain remains between the plates 57c, this large amount of remaining kernel moves through the gap M to a location where there is little residual kernel, and between these spiral plates 57c. The remaining grains are crushed and not damaged.
[0030]
The moving transfer helix 55c has a hexagonal inner diameter, a circular outer diameter and a predetermined length, a spiral inner boss 59a having a bolt insertion screw hole on the transfer end side, and an outer diameter portion of the inner spiral boss 59a. In the shape of a fixed pipe, for example, a spiral outer boss 59b having a length corresponding to 1.5 pitches of the spiral plate 57c, and a 1.5 pitch length spiral plate 57c fixed to the outer peripheral portion of the outer spiral boss 59b. And a stopper plate 58c provided on the transfer start end side of the spiral plate 57c.
[0031]
The non-transfer side on one side of the spiral outer boss 59b has the same shape as the base on the non-transfer side of the spiral plate 57c fixed to the spiral outer boss 59b, and the spiral plate from the transfer start end of the spiral plate 57c. Up to approximately 1.0 pitch position A of 57c, it is formed in a straight line, and an opening 59c is formed by these, and a portion other than the opening 58d portion of the spiral outer boss 58b of the moving transfer spiral 55b to this opening 59c portion Is inserted.
[0032]
The outer diameter portion of the transfer spiral shaft 54 at the transfer end is inserted into and supported by the inner diameter portion of the receiving metal 49b provided in the transfer tube 49, and the inner boss 59a of the transfer screw 55c is supported. In this configuration, a bolt is screwed into the screw hole and attached to the moving spiral shaft 54.
When the transfer helix 55c moves and polymerizes to the transfer helix 55b, a gap T is formed between the helix plate 57c of the transfer helix 55c and the helix plate 57c of the transfer helix 55b. It is the composition which has. By providing each gap T between the transfer spirals 55a, 55b, 55c, no residual grain is generated, and the transfer cylinder 49 can be operated in a fully contracted state. It is said.
[0033]
The moving device 50 is provided with a moving motor 61 on the base side of an inverted L-shaped support plate 60 provided at the distal end portion of the joint tool 46b, and is provided with a receiving metal 62 at the distal end portion. Is provided with a transfer shaft 63 provided with a helical screw on the outer periphery, and the transfer shaft 63 is screwed into a moving support metal 56 b provided in a moving transfer cylinder 49 and the tip is supported by the receiving metal 62. It has a configuration.
[0034]
By the forward / reverse rotation drive of the moving motor 61, the transfer shaft 63 is driven forward / reversely, and the transfer tube 49 is movable along the outer periphery of the fixed transfer tube 47 via the support metal 56b. Through this movement of the transfer cylinder 49, the internal transfer spirals 55a, 55b, 55c and the like are superposed to expand and contract.
[0035]
As shown in FIG. 3 and FIG. 4, each moving transfer helix 55a, 55b, 55c is mounted on each moving transfer helix 55a. The position is set so that the positions are sequentially shifted by approximately 60 degrees.
As a result, the moving transfer spirals 55b other than the moving transfer spiral 55a at the transfer start end and the moving transfer spiral 55c move to a contracted state, and when in the contracted state, there is a predetermined gap between the spiral plates 57c. By adopting the shape having the gap T, the remaining particles can be prevented and the moving transfer tube 49 can be operated in a completely contracted state.
[0036]
As shown in FIG. 9, the transfer spiral 64 for movement is provided with an outer spiral boss 58b on the outer diameter portion of the spiral inner boss 58a. The stopper plate 58c is provided at the transfer start end portion of the spiral plate 57c, and the reinforcing pin 57d is provided at the transfer end portion. Incidentally, FIG. 1, and FIG. 2 are provided the helix the boss 58a in the transport direction intermediate position.
[0037]
As a result, when the in-helix boss 58a is provided at the transfer start end portion with respect to the spiral plate 57c, the in-helix boss 58a is provided at an intermediate position with respect to the spiral plate 57c as in the prior art. In some cases, the grain may remain on the inner diameter of the outer boss 58b at the transfer start end of the inner boss 58a, but this remaining grain can be prevented.
[Brief description of the drawings]
FIG. 1 is an enlarged side view of a moving transfer spiral. FIG. 2 is an enlarged front view of a moving transfer spiral. FIG. [Fig. 5] Enlarged sectional view of the joint of the fixed transfer cylinder and the transfer cylinder. [Fig. 6] Bonded state of the fixed transfer cylinder and the transfer cylinder. Fig. 7 is an enlarged side view of the combiner. Fig. 8 is an overall side view of the combine. Fig. 8 is an enlarged side sectional view of the threshing machine.
47 Fixed transfer cylinder 49 Transfer cylinder 51 Transfer spiral
52 fixed spiral shaft
54 moving spiral shaft
55a moving transfer helix (moving helix on both ends)
55b Transfer helix for movement ( move transfer helix in the middle part)
55c moving transfer helix (moving transfer helix on both ends)
57a spiral boss
57b Spiral outer boss 57c Spiral plate 58a Spiral inner boss 58b Spiral outer boss M Clearance

Claims (1)

And interior moving spiral shaft (54) in moving the transfer cylinder (49) as well as interior shift transmission fixation helix shaft equipped with helical (51) (52) to the fixed transfer cylinder (47), the transfer for the mobile provided movably inserted into the outer peripheral portion of the cylindrical (49) a fixed transfer cylinder (47), for supporting the moving transport spiral (55a, 55c) on both ends of the movable spiral shaft (54) At the same time, when the plurality of intermediate transfer spirals (55b) are pivotally supported between the transfer spirals (55a, 55c) on both ends, the transfer spirals (55a, 55c) on both ends are supported. ) and provided for movement transfer spiral of the intermediate portion (55b) on the outer peripheral portion of the spiral in the boss (57a, 58a) spiral out boss (57 b provided on the outer periphery of, 58b) and said helical outer boss (57 b, 58b) spiral plate (57c) and the intermediate portion constitutes from Each spiral plate several moving transport helix (55b) (57c) How to by each polymerized, the outer peripheral portion and the helical plate of the spiral the boss in the movement for transporting the spiral of the intermediate portion (55b) (58a) (57c ) grain transfer device combine, characterized in that which is configured by providing a clearance (M) between the inner diameter portion of the.

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