JP2013172650A - Grain transportation auger of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain transportation auger of a combine harvester which, while removing the dust of rachis-branches and the like by a dust discharging means set up in the midway part of the horizontal cylinder auger to discharge the dust in the grain stored in a grain tank outside the machine, prevents mixing of the dust into a grain container by discharging the dust outside the container.SOLUTION: In a grain transportation auger of a combine harvester which, when a grain culm mown in a pretreatment part is threshed by a thresh part and the grain which is threshed to store in a grain tank is discharged from a grain conveyance auger, the grain is discharged from the grain outlet 7a outside the machine, while discharging the dust by a dust discharge means 10 installed in the transverse cylinder auger 7 of the grain conveyance auger, a dust discharge means 10 to dispose in tension a dust leakage net 17 of mesh which leaks and discharges the dust, such as rachis-branches and waste straws, while regulating leakage of grain, is installed in the midway part of a cylinder length of the transverse cylinder auger 7.

Description

  The present invention relates to a combine grain auger.

  Conventionally, after threshing the cereals harvested in the pre-processing unit in the threshing unit and storing the threshed grain in the glen tank, the grain container such as the loading platform of the truck waiting on the ground by the grain transport auger In order to be discharged inside, dust (weeds) such as dust and weed species mixed in the transported grain and branch stems and scraps are sent from a blower installed in a horizontal tube auger (transverse feed device). A combine grain transport auger that discharges grain from a grain outlet while removing dust by dust discharging means that attracts dust by wind is already known (for example, Patent Document 1).

No. 7-7712

  The grain transport auger shown in Patent Document 1 has advantages such as the ability to discharge and collect grains with less dust by the dust discharging means during the grain discharging operation, but it rotates in a horizontal tube auger with a large diameter. It is difficult to separate the mixed grain (branch) with branch infarction into branch branch and rice bran, and the grain with branch branch is discharged as it is. And stored in a grain container. Further, since the air outlet of the dust discharging means is provided immediately above the grain outlet, there is a problem that dust discharged from the air outlet easily falls into the grain container. Therefore, when the operator wants to look inside the grain container during the grain discharging operation and confirm the storage state of the grain, etc., the checking work such as falling dust falling on the head is hindered, and the grain When the grain in the grain container is subjected to a grain discharging operation, a drying process by a dryer which is a post-processing process work, or a hulling process by a rice huller, etc. There are problems such as increasing the processing load and reducing the processing efficiency.

In order to solve the above-mentioned problem, the grain transport auger of the combine according to the present invention firstly threshed cereals harvested by the pretreatment unit 2 by the threshing unit 3 and threshed and stored in the grain tank 6. In order to discharge the grain from the grain transport auger 5, the grain of the combine which is discharged out of the machine from the grain discharge port 7a while discharging the dust by the dust discharge means 10 installed in the horizontal tube auger 7 of the grain transport auger 5. In the grain transport auger,
In the middle part of the cylindrical length of the horizontal tube auger 7, a dust leakage net 17 having a mesh for discharging dust such as branch stems and sawdust while discharging is stretched while restricting the leakage of grains. The dust discharging means 10 is provided.
Second, the dust discharge means 10 is installed in the middle of the horizontal tube auger 7 and close to the grain discharge port 7a.
Thirdly, a punching metal in which the dust leakage net 17 of the dust discharging means 10 is provided with a large number of leakage holes for leaking branch branches separated from the grains without causing the grains to leak. And the punching metal 17 is provided on at least the upper and lower surfaces of the horizontal tube auger 7.
Fourthly, the dust discharge means 10 is covered with the dust leakage net 17 stretched around the horizontal tube auger 7 by the outer cover 33 having an exhaust space, and the outer cover 33 is covered with the outer cover 33 in the horizontal tube auger 7. An exhaust fan 30 for forcibly discharging dust from the dust leakage net 17 to the outside through the exhaust space is provided.

According to the first aspect of the present invention, the threshed grain is stored in the glen tank and then discharged by the grain transport auger. By installing the dust discharge means that stretches the dust leakage net of the mesh to be discharged in the middle of the cylindrical length of the horizontal tube auger of the grain transfer auger, The removed grain is discharged out of the machine through the grain outlet. Further, dust can be discharged outside the container such as a truck bed so that mixing into the grain container can be prevented. Therefore, when the discharged grain is subjected to post-processing work, the processing efficiency can be improved while reducing processing loads such as drying processing and hulling processing.
According to the invention of claim 2, the dust discharging means is installed near the grain outlet in the middle part of the horizontal auger, so that the grain is discharged with the grain outlet facing the upper side of the grain container. Since the dust discharging means is located outside the grain container, the dust discharged from the dust leakage net can be discharged to the outside without being mixed into the grain container. Further, when the operator looks inside the grain container during the grain discharging operation and confirms the storage state of the grain, it is not hindered by dust. Further, since the dust discharging means is installed near the grain outlet where the grain filling rate is gradually lowered in the middle part of the horizontal auger, the dust and the dust are easily stirred and separated by the spiral body 13. Promote emissions.
According to the invention of claim 3, the dust leakage net of the dust discharging means is provided with a number of leakage holes having a mesh size for leaking the branch branch separated from the grain without leaking the grain. By forming the punching metal on at least the top and bottom surfaces of the horizontal cylinder auger, the grains that have reached the dust discharge means in the horizontal cylinder auger are placed between the spiral body and the upper and lower dust leakage nets. It is agitated and transported while being disentangled by the movement resistance of the punched punch holes, so that the mixed rachis adhering folds can be separated without damaging the ridges, and the removed rachis and dust removed at the same time. It can be quickly discharged from the leak hole. Further, since the punching metal on the upper surface promotes the quick discharge of dust floating in the horizontal tube auger, it is possible to smoothly discharge the grain while reducing the discharge of dust due to the punching metal on the lower surface.
According to the fourth aspect of the present invention, the outer periphery of the dust leakage net is covered by the outer peripheral cover with the exhaust space, and the dust in the horizontal tube auger is forced from the dust leakage network to the outside through the exhaust space. By providing an exhaust fan that discharges to the outside, the exhaust fan forcibly collects dust including branch streaks in the horizontal tube auger through the exhaust space and the dust leakage net and the exhaust space and exhausts it to the outside. Intrusion of dust into the grain container and scattering to the operator side can be reliably prevented. In addition, the outer cover can restrict the diffusion and discharge of dust leaking from the dust leakage net and discharge it hygienically, and can prevent rainwater from entering the horizontal tube auger.

It is a right view of a combine provided with the grain conveyance auger of the present invention. It is a side view which shows the grain discharge operation | work of a combine. It is a perspective view which shows the structure of the dust discharge means installed in a horizontal cylinder auger. It is a perspective view which shows the structure of the front-end | tip part of a horizontal cylinder auger. It is sectional drawing which shows the principal part of the grain conveyance auger which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the principal part of the grain conveyance auger which concerns on 3rd Embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. The combine 1 shown in FIG. 1 and FIG. 2 is provided with a pre-processing unit 2 that can be moved up and down at the front of the traveling machine base 1a, a threshing unit 3 is disposed on the rear left side thereof, and a maneuver surrounded by a cabin 4a on the right side. The grain tank 6 which has the part 4 and the grain conveyance auger 5 which concerns on this invention in the back is arrange | positioned. The traveling machine base 1a includes crawler-type traveling devices 1b at the left and right lower parts, and the threshing unit 3 is detachably attached to the rear part of the threshing machine body, and is a cutter device that cuts the threshed waste into a slimming direction. (Exhaust treatment device) 3a is provided.

  The grain conveying auger 5 includes a vertical cylinder auger 5a erected along the rear wall of the grain tank 6, and a grain transfer unit 5b installed on the upper part of the vertical cylinder auger 5a for transferring the grains. And a horizontal tube auger 7 that discharges the grain from the tip via the grain transfer part 5b. This grain transport auger 5 is operated by operating an auger operating part (not shown) installed in the control part 4 in the cabin 4a and a remote operating tool 8 detachably attached to the tip of the horizontal tube auger 7. The vertical cylinder auger 7 is moved up and down, the vertical cylinder auger 5a is pivoted around the center of rotation, and the horizontal cylinder auger 7 is installed in the grain outlet 7a formed downward. The operation | movement of the grain discharge flow board 9 mentioned later can be performed freely.

  And the grain conveyance auger 5 installs the dust discharge means (branch stem processing means) 10 which concerns on this invention in the middle part of the horizontal cylinder auger 7, and thereby removes the branch bellflower and small dust which are mixed in the conveyance grain. The grain from which the branch branches and dust have been removed is removed from the grain outlet 7a into the grain container (grain accommodating part) 12 of the truck 11 waiting on the road, for example, as shown in FIG. It is trying to discharge in a clean state.

  Hereinafter, the grain conveyance auger 5 according to the first embodiment of the present invention will be described with reference to FIGS. This grain transport auger 5 has a dust discharge means 10 installed on the horizontal auger 7 with a predetermined installation interval (dust discharge distance) H upstream from the grain discharge port 7a in the grain transport direction. Yes. The installation interval H is such that the spiral body 13 in the horizontal auger 7 can efficiently remove the branch leaf without causing damage to the grain, and the dust containing the branch leaf discharged from the dust discharge means 10 is a grain container such as a loading platform. 12 is a distance that does not enter the distance 12 and the distance that the dust is on the combine 1 side and does not fall on the operator, that is, a position that is away from the grain outlet 7a near the grain outlet 7a. Provided. In addition, since this installation position is sufficiently separated from the base side of the horizontal tube auger 7 having a high grain conveyance density (grain filling rate), the grains in this part where the grain filling rate gradually decreases are as follows. It is conveyed while being agitated without difficulty by the spiral body 13, so that the grains and dust such as branches are efficiently separated.

  At the installation position, the dust discharging means 10 forms a plurality of long holes 15 having a predetermined length and width along the longitudinal direction of the cylinder on the outer periphery of the horizontal tube auger 7, and a vertical beam portion 16 between the adjacent long holes 15. While drilling. Each long hole 15 is provided with a dust leakage net 17 in which a large number of leakage holes are formed to allow dust such as branch stems and small swarf to leak without leaking grains (slag). ing. This dust leakage net 17 is a rectangular punching metal having a large number of round holes (leakage holes) having a diameter of about 2 mm. In this case, the punching metal having a semicircular cross section is long. The hole 15 is provided so as to cover the outer periphery of the spiral body 13 with an interval of about 2 to 5 mm, and the grain stirred with the rotation of the spiral body 13 is smoothly guided to the grain discharge port 7a side. At this time, the dust leaking net 17 has a branch raft removing action for separating the wrinkles from the branch rachis because each punched punch hole acts as a stir and move resistance against the branch rachis adhering wrinkles and imparts an action to disentangle them. It promotes without damaging the wrinkles and at the same time smoothly removes the removed branch peduncles.

  Next, the front end structure of the horizontal tube auger 7 will be described with reference to FIGS. The horizontal auger 7 has a grain outlet 7a opened at the lower end of the cylinder, and a mouth 19 having a square cross section is provided downward around the grain outlet 7a. A cylindrical grain flow-down guide 20 made of a flexible transparent sheet is attached. Further, an attachment 22 for detachably holding the remote operation tool 8 is attached to an end wall 21 that closes the distal end portion of the horizontal tube auger 7.

A support shaft 23 is pivotally supported on the left and right side walls on the front side of the mouthpiece 19, and the upper portion of the grain discharge guide 9 is fixed to the support shaft 23. One end of the support shaft 23 is connected to a rotation device (motor) 25 attached to the distal end side wall.
With this configuration, based on the operation of the auger operation unit or the control unit side remote operation tool 8a installed on the remote operation tool 8 or the control unit 4 side, the rotating device 25 is operated to rotate the support shaft 23 forward and backward. Thus, the grain discharge guide 9 closes the grain discharge port 7a, and the lower part of the grain discharge port 7a is fully opened to form a hanging shape as shown in FIG. It can switch to the arbitrary inclination guide attitude | positions shown.

  This grain discharge guide 9 has a flat middle plate with its upper part fixed along the support shaft 23, with its lower ends on both sides gradually bent toward the front side of the grain discharge port 7a, and a middle and high center. It is made into the middle-high shape which makes the cross-section V shape or U shape which has the inclined surface 9b on the right and left of the surface 9a. Thereby, the grain discharge guide 9 guides the part of the grain flowing down from above and coming into contact with the middle and high center surface 9a along the left and right slopes 9b in the discharge posture and the inclined guide posture. Accordingly, the grain discharge guide 9 is efficiently dispersed in the grain container 12 by widely dispersing the grain left and right by the left and right slopes 9b, without intensively discharging and storing the grain only directly below the grain outlet 7a. Contain well.

  Next, the grain discharging operation of the combine 1 provided with the grain transporting auger 5 configured as described above will be described. When the operator performs the grain discharging operation while staying in the operation unit 4, the auger operation unit of the control unit 4 is operated while the horizontal auger 7 and the grain container 12 are externally viewed. Further, when the operator performs the grain discharging operation while staying on the ground in the vicinity of the machine body, as shown in FIG. 2, the operator performs remote operation with the control unit side auger operation unit 8 a removed from the control unit 4. Moreover, when performing a grain discharge | emission operation | work from the grain container 12 side, it carries out by operating the remote operation tool 8 removed from the fixture 21. FIG. In any of these cases, the operator first performs the positioning operation so that the grain flow guide 22 is located at the appropriate grain discharge position facing the grain container 12 while viewing the movement of the horizontal auger 7. The grain discharging operation in the tank 6 is performed and the grain discharging operation is started.

  At this time, the operator performs a correction operation such as adjusting the height of the horizontal cylinder auger 7 or moving the combine 1 closer to the grain container 12, so that the horizontal auger 7 is adjusted to an appropriate grain with respect to the opening of the grain container 12. Position so that it is the grain discharge position. Thereby, the horizontal cylinder auger 7 is in a state in which the grain outlet 7a at the tip is fixed at a predetermined position and height of the grain container 12, and the dust discharging means 10 having an installation interval H from the grain outlet 7a. Is a position away from the outer wall of the grain container 12. Next, when the grain conveyance auger 5 is driven, the grains in the grain tank 6 are conveyed by the horizontal cylinder auger 7 from the vertical cylinder auger 5a through the grain transfer section 5b and are transferred from the grain outlet 7a at the tip. It is conveyed and discharged into the container 12.

  Thereby, when the grain transported and moved in the horizontal auger 7 reaches the dust discharging means 10 in which the dust leakage nets 17 are provided on the upper and lower and left and right surfaces of the cylinder, the dust leakage net 17 on the lower surface side is Mainly with the spiral body 13, the kneading and moving grain is imparted with squeezing due to movement resistance, and the branch infarction removing action that separates the koji and the branch infarction from the mixed branch infarct adhering grains is promoted and The separated soot is transported, and at the same time, the separated branches and dust are quickly discharged from the leakage hole. In addition, the dust leakage net 17 stretched on the upper surface and the side surface removes the branch branch together with dust, mixed dust, etc. while removing the branch branch by stirring the grain accompanying the rotation of the spiral body 13. Efficient and smooth discharge from the leak hole.

  Further, the horizontal auger 7 has the dust discharge means 10 located near the grain discharge port 7a at a position away from the grain discharge port 7a, so that the grain discharge port 7a is located above the grain container 12. Since the dust discharging means 10 is located at a position spaced outward from the grain container 12, the dust discharged from each dust leakage net 17 falls outside without being mixed into the grain container 12. Release. Moreover, since the grain accommodated in the grain container 12 is in a beautiful state in which the branch stem and dust are removed, the drying process by the dryer as a post-processing process work and the hulling by the hulling machine Processing and the like can be performed efficiently and easily while reducing the processing load.

  In addition, the dust leakage net 17 is made of punching metal, so that the movement resistance peculiar to the leakage hole punched between the spiral body 13 and the dust leakage net 17 and the smooth surface can be used to absorb the mixed stamen adhesion fouling. While stirring, transport with stirring. Therefore, without increasing the rotational load of the spiral body 13, it is possible to separate from the branch limbs without damaging the wrinkles, and to simultaneously remove the removed branch limbs and dust from the leakage hole. The punching metal 17 is preferably provided on at least the upper and lower surfaces of the horizontal tube auger 7. In this case, the punching metal on the upper surface discharges dust floating in the horizontal auger without being disturbed by the grains being conveyed, and reduces the discharge of dust from the punching metal 17 on the lower surface. There is a feature that dust discharge efficiency can be improved.

  Next, the dust discharging means 10 of the grain transport auger 5 according to the second embodiment of the present invention will be described with reference to FIG. The description of the same configuration and operation as those in the first embodiment will be omitted. This dust discharge means 10 is provided with a plurality of dust leakage nets 17 made of punching metal on the horizontal tube auger 7 with the same structure and arrangement as in the first embodiment, and the dust leakage nets 17 are provided. The horizontal tube auger 7 is covered with a processing net cover 31 having an exhaust fan 30 for forcibly discharging the air inside the auger 7. This processing net cover 31 is provided with ring-shaped end plates 32 that are detachably fitted to the horizontal cylinder auger 7 at both positions of the dust leakage net 17 and a cylindrical outer cover 33 supported between the two. It is configured to have a dust leakage net 17 and a predetermined intake interval (exhaust space). The outer peripheral cover 33 is provided with an exhaust part 34 in the middle of the lower surface side, and the exhaust part 34 has an exhaust fan 30 that is rotated by an electric motor inside the exhaust cylinder 35 opened downward. Yes.

  According to the dust discharge means 10, since the processing net cover 31 covers the entire dust leaking net 17 stretched at least on the outer periphery and upside of the horizontal tube auger 7 with the exhaust space, the dust leaking net 17 It is possible to prevent the discharged dust from being diffused and discharged, and rainwater from entering the horizontal auger 7. Further, since the exhaust fan 30 communicates with the horizontal tube auger 7 through the dust leakage net 17, the branch branch and dust are forcibly discharged from the respective leakage holes to the outside through the exhaust space, and also the horizontal tube auger. 7 is discharged in a downward direction from a predetermined location, so that dust can be reliably prevented from entering the grain container 12 and scattered to the operator side, and a more sanitary grain discharging operation can be performed. There are features such as being able to.

  Next, the dust discharging means 10 of the grain conveyance auger 5 according to the third embodiment of the present invention will be described with reference to FIG. The dust discharging means 10 covers the dust leakage net 17 provided on the horizontal tube auger 7 with a processing net cover 31 having an exhaust fan 30 therein, with a configuration substantially similar to that of the second embodiment. The exhaust fan 30 according to the embodiment is pivotally supported on the end plate 32 side on the upstream side in the grain conveyance direction via a shaft support means (bearing or the like) 36 and is rotatably inserted into the outer periphery of the horizontal tube auger 7. A sirocco exhaust fan 30 is provided. And on the lower surface side of the outer peripheral cover 33, an exhaust cylinder 35 facing the rotation trajectory of the outer periphery of the blades of the exhaust fan 30 is provided so as to open downward. The exhaust fan 30 is rotationally driven by a rotational driving means using an electric motor (not shown), or by an airflow rotating means using the dust leakage net 17 and the exhaust space and the airflow flowing through the exhaust cylinder 35 from the horizontal cylinder auger 7. be able to.

  According to the dust discharge means 10, the entire dust leakage net 17 stretched at least vertically on the outer periphery of the horizontal tube auger 7 is covered by the processing net cover 31 that forms the exhaust space. It is possible to prevent diffusion and discharge of dust that is discharged and intrusion of rainwater. Further, since the exhaust fan 30 communicates with the horizontal tube auger 7 through the dust leakage net 17, the fork and dust are forcibly discharged from the respective leakage holes to the outside through the exhaust space, and the outer peripheral cover. 33 restricts the diffusion and discharge of dust leaking from the dust leakage net 17 and discharges it hygienically from a predetermined portion of the horizontal tube auger 7 so that the dust enters the grain container 12 and the operator side. To prevent splashing.

  Further, by installing the exhaust fan 30 on the upstream side in the grain conveying direction, when the tip end side of the horizontal auger 7 is raised and tilted during the grain discharging operation, the exhaust fan 30 becomes the lower side of the exhaust space. Dust leaking from the net 17 is received and discharged efficiently. In addition, it is desirable that the dust discharging means 10 is provided so that the dust leakage net 17 can be attached to and detached from the horizontal auger 7, and in this case, the dust leakage net 17 having different meshes or different mesh shapes depending on the properties of the grains. Can be exchanged in accordance with the properties of the grain, so that the material compatibility can be improved.

DESCRIPTION OF SYMBOLS 1 Combine 2 Pretreatment part 3 Threshing part 5 Grain conveyance auger 6 Glen tank 7 Horizontal cylinder auger 7a Grain discharge port 10 Dust discharge means 12 Grain container 17 Dust leakage net 30 Exhaust fan 33 Outer cover

Claims (4)

In order to drain the cereals harvested in the pretreatment unit (2) by the threshing unit (3) and drain the cerealed grains stored in the Glen tank (6) from the grain transport auger (5). In the grain transporting auger of the combine that discharges out of the machine from the grain outlet (7a) while discharging the dust by the dust discharging means (10) installed in the horizontal auger (7) of the transporting auger (5),
In the middle of the cylindrical length of the horizontal tube auger (7), a dust leakage net (17) of a size that allows the leakage of dust such as branches and shackles while restricting the leakage of grains is stretched. A grain conveying auger for a combine, wherein a dust discharging means (10) is provided.   The combine grain conveying auger according to claim 1, wherein the dust discharging means (10) is disposed in the middle of the horizontal tube auger (7) near the grain outlet (7a).   Punching metal formed by drilling a large number of leak holes for leaking the branch branch separated from the grain without causing the grain to leak through the dust leakage net (17) of the dust discharging means (10) The combine grain conveying auger according to claim 1 or 2, wherein the punching metal (17) is provided on at least the upper and lower surfaces of the horizontal tube auger (7).   The dust discharge means (10) is covered with a dust leakage net (17) stretched around the horizontal auger (7) by an outer cover (33) having an exhaust space, and the outer cover (33) is covered with the outer cover (33). The combine according to claim 1, 2 or 3, wherein an exhaust fan (30) is provided for forcibly discharging dust in the horizontal tube auger (7) from the dust leakage net (17) to the outside through the exhaust space. Grain transport auger.

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