JP3846039B2 - Combined expansion and contraction grain transfer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an expandable grain transfer device for a combine.
[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]
When performing a discharge operation by expanding and contracting the moving transfer cylinder, the inner boss of each moving transfer spiral that is polymerized inside the moving transfer cylinder includes an outer helical boss attached to the inner boss, and By attaching to one end of the spiral plate attached to the outer boss of the spiral, for example, to the end side of the transfer starting end, wrinkles may occur in the boss in the spiral during expansion / contraction operation. For these reasons, the transfer spirals for movement may not be smoothly expanded and contracted, but the present invention is intended to solve this problem.
[0004]
[Means for Solving the Problems]
To this end, the present invention includes a fixed transfer cylinder 47 having a transfer spiral 51 that receives and transfers grains, and a part of the spiral plate 57c of the transfer spiral 55b that is located on the upper side of the transfer and a lower transfer side. the movement transfer tube 49 that furnished the moving transport helix 55b of the spiral plate moving the transport helix 55b plurality of part and is retractable by polymerization of 57c located adjacent to the side of the fixed transfer cylinder 47 The moving transfer spiral 55b is provided so as to be movably inserted into the outer peripheral portion 48, and the outer spiral boss 58b is provided on the outer peripheral portion of the inner spiral boss 58a, and the spiral plate 57c is provided on the outer peripheral portion of the outer spiral boss 58b. in stretching grain transfer device combine comprising Te, the spiral inside the boss 58a is Konbai down telescopic grain transfer instrumentation, characterized in that provided by positioning a substantially central portion of the transfer direction of the spiral outer boss 58b And configuration.
[0005]
[Effects of the Invention]
When harvesting with a combine, 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 inside of the cylinder 47 is transferred and discharged out of the machine.
[0006]
【The invention's effect】
When performing discharging work movement transfer cylinder 49 is moved actuated, the helix in the boss 58a of the moving transport helix 55b that are furnished on the moving transport tube 49 has an outer diameter of the helix the boss 58a Since the outer boss 58b is attached to the substantially central portion in the transfer direction, wrinkles are not generated in the inner boss 58a during the expansion / contraction operation. 55b can be moved smoothly.
[0007]
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. .
[0008]
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.
[0009]
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.
[0010]
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.
[0011]
As shown in FIG. 9, 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.
[0012]
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.
[0013]
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. This rocking sorter 35 has a structure in which a transfer shelf 36a, a chaff sheave 36b, and a stroller 36c are sequentially provided from the front, and a glenshave 36d is provided below the chaff sheave 36b. It is configured so that the amount of leakage can be adjusted.
[0014]
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.
[0015]
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.
[0016]
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. With the upper end portion of 45a as a fulcrum, the entire length extends and contracts across the length of the combine 1, and an extendable grain transfer device 4 is provided for discharging the grain outside the machine.
[0017]
The elastic grain transfer device 4 includes a fixed transfer cylinder 47 attached to a joint metal 46 as shown in FIGS. 1 to 7, 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. 6, a fixed spiral shaft 52 having a transfer spiral 51 mounted on the outer peripheral portion is internally provided at the transfer end 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.
[0018]
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.
[0019]
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.
[0020]
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. 6, the inner diameter 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 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.
[0021]
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.
[0022]
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 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 is formed in the same shape as the spiral plate 57c. 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.
[0023]
The inner diameter portion of the transfer start 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 the bolt 53b is screwed into the screw hole portion of the spiral inner boss 57a. Thus, the moving transfer spiral 55a is mounted.
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, a spiral outer boss 58b having a length corresponding to 1.5 pitches, a spiral plate 57c having a length of 1.5 pitch fixed to the outer periphery of the spiral outer boss 58b, and a transfer start end of the spiral plate 57c. A stopper plate 58c provided on the side, a reinforcing pin 57d provided on the transfer terminal end side, and the like.
[0024]
As shown in FIGS. 1 and 2, the inner boss 58a of each moving transfer helix 55b is substantially at the center in the transfer direction of the outer helix boss 58b and the helix plate 57c to the inner diameter of the outer helix boss 58b. As a fixed structure, when each outer spiral inner boss 58a expands and contracts the moving spiral shaft 54, each inner spiral boss 58a does not generate wrinkles. The boss 58a is configured to smoothly expand and contract on the moving spiral shaft 54.
[0025]
As shown in FIGS. 1 and 3, the inner diameter portion of each of the moving transfer spirals 55 b in contact with the moving spiral shaft 54 of the in-helical boss 58 a is the intermediate inner diameter portion other than both ends. As a configuration in which the insertion hole has a larger shape than the hexagonal shape of the outer portion 54, dust is prevented from adhering and the movement of the transfer spirals 55b is smooth.
[0026]
In each of the moving transfer spirals 55b , as shown in FIG. 1, the in-spiral boss 58a is located in the spiral of the moving transfer spiral 55b located adjacent to the upper transfer side by the F surface on the start end side in the grain transfer direction . The E-face on the terminal end side of the boss 58a in the grain transfer direction is pushed to operate each of the moving transfer spirals 55b in the contracted state, and this in-helical boss 58a is the surface to be pressed when operating in the contracted state. The F-plane is configured to be perpendicular to the axial direction, so that the expansion and contraction operation of each moving transfer spiral 55b is smooth. At this time, it is necessary that the predetermined width L is not provided from the base of the spiral plate 57c of the outer spiral boss 58b. For example, the shape is as shown in FIG.
[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. until approximately 1.0 pitch position point B, is from to the transfer terminal end the point a, in the formed linearly to each other on the diagonal, those by the aperture 58d, to form 58d portion, the opening 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 portions 58d and 58d.
[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]
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.
[0030]
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.
[0031]
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.
[0032]
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.
[0033]
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.
[0034]
As shown in FIGS. 4 and 5, the moving transfer spirals 55a, 55b, and 55c are mounted on the moving transfer spiral 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.
[0035]
As shown in FIG. 10, each moving transfer spiral 64 has a configuration in which an inner diameter portion of a spiral plate 65b formed of a thick plate material is directly fixed to the outer peripheral portion of the spiral inner boss 65a. A stopper plate 58c is fixed to the transfer start end portion, and a reinforcing pin 57d is fixed to the transfer end portion.
As a result, by eliminating the need for the conventional spiral outer boss, there is no generation of residual grains, and the cost can be reduced.
[0036]
As shown in FIGS. 11 to 13, each moving transfer spiral 66 has a substantially semicircular outer boss having a substantially semicircular shape as shown in FIGS. 67a is fixed, a spiral plate 67b is fixed to the outer diameter portion of the spiral outer boss 67a, a stopper plate 58c is fixed to the transfer start end portion of the spiral plate 67b, and a reinforcement is provided to the transfer end portion. As a configuration in which the pin 57d is fixed, the outer boss 67a having a spiral shape is formed into a shape that can be pressed, thereby reducing the cost.
[Brief description of the drawings]
[Fig. 1] Enlarged side view of moving transfer spiral [Fig. 2] Enlarged front view of moving transfer spiral [Fig. 3] Enlarged side sectional view of boss in helix of moving transfer spiral [Fig. 4] Each moving transfer spiral Fig. 5 is an enlarged overall side view of each moving transfer spiral in a contracted state. Fig. 6 is an enlarged side view of the joint between the fixed transfer cylinder and the moving transfer cylinder. Sectional view [Fig. 7] Enlarged side view of the joined state of the fixed transfer barrel and the transfer barrel [Fig. 8] Overall side view of the combine [Fig. 9] Enlarged side sectional view of the threshing machine [Fig. 10] Other Examples Fig. 11 is an enlarged side view of a transfer spiral for movement. Fig. 11 is a diagram showing another embodiment, and is an enlarged side view of a transfer spiral for movement. Fig. 12 is a view showing another embodiment. FIG. 13 is a view showing another embodiment, and is an enlarged front view of the spiral outer boss of the transfer spiral for movement. [Explanation of symbols]
47 fixed transfer cylinder 48 outer peripheral part 49 transfer cylinder 51 transfer helix 55b transfer helix 57c transfer helix 57c spiral plate 58a spiral inner boss 58b spiral outer boss

Claims (1)

A fixed transfer cylinder ( 47 ) having a transfer spiral ( 51 ) that receives and transfers the supply of grain, a part of the spiral plate (57 c) of the transfer spiral (55 b) located on the upper transfer side, and the lower transfer side 49. A transfer cylinder ( 49 ) having a plurality of movable transfer spirals ( 55b ) that are stretchable by overlapping with a part of the spiral plate (57c) of the transfer spiral (55b) located adjacent to the side. ) with freely inserted to provide movement to the outer periphery of the fixed transfer cylinder (47) (48), helical outer boss provided on the outer periphery of the moving transport helix (55b) is spiral in a boss (58a) ( 58b ) , and the expandable grain transfer device of the combine in which the spiral plate ( 57c ) is provided on the outer periphery of the outer spiral boss ( 58b ) , the inner boss ( 58a ) is transferred to the outer spiral boss ( 58b ) . Approximate center of direction It provided by positioning the telescoping grain transfer device Konbai emissions characterized by.

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