JP2007195416A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester readily avoiding deformation or damage by touching of a transverse screw conveyor 23 on a grain tank 10 and having a simple structure even when the transverse screw conveyor 23 is lowered above the grain tank 10 in the combine harvester equipped with a vertical screw conveyor 22 and the transverse screw conveyor 23 for taking out grains from the grain tank 10. <P>SOLUTION: The combine harvester is equipped with a conveyor stopper part 30 protruding from a top board 12 of the grain tank 10 in the upward direction of the machine body. The conveyor stopper part 30 receives the transverse screw conveyor 23 from the lower side and supports the conveyor stopper part 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a grain tank that collects and stores the grain from the threshing device, and the grain stored in the grain tank is vertically connected to the discharge unit of the grain tank. The present invention relates to a combine configured to be carried out by a screw conveyor and a horizontal screw conveyor extended from the vertical screw conveyor so as to be undulated and swiveled.

Conventionally, for example, Patent Documents 1 and 2 disclose the above-described combine.
What is shown in Patent Document 1 is provided with a Glen tank 5 made of sheet metal, and what is shown in Patent Document 2 is provided with a tank body 30a made of synthetic resin.

Japanese Patent Laying-Open No. 2005-130720 (paragraph [0021], FIGS. 1 and 2)

JP-A-11-89415 (paragraph [0021], FIGS. 1 and 2)

  In the above combine, the horizontal screw conveyor can be swiveled so that the grain can be carried out even if a transport vehicle or the like is located at any location around the self-propelled machine body. . For this reason, conventionally, when the horizontal screw conveyor is positioned above the grain tank and lowered by an erroneous operation or the like, and the horizontal screw conveyor hits the grain tank, the transport cylinder of the horizontal screw conveyor may be deformed. It is thought that it occurs. Even if the grain tank is made of resin, it is conceivable that the horizontal screw conveyor hits the corner of the grain tank or near the corner and the horizontal screw conveyor is deformed.

  An object of the present invention is to provide a combine that can easily avoid deformation and breakage of the horizontal screw conveyor and obtain a simple structure even when the horizontal screw conveyor is lowered above the grain tank. It is in.

In this 1st invention, while providing the grain tank which collects and stores the grain from a threshing apparatus, the grain stored in the said grain tank was connected to the discharge part of the grain tank. In a combine configured to be carried out by a vertical screw conveyor facing up and down the machine body and a horizontal screw conveyor extended from the vertical screw conveyor so as to be able to undulate and swivel,
The grain tank is configured as a resin tank,
The grain tank is provided with a conveyor stopper portion that protrudes upward from the top of the grain tank and receives and acts on the horizontal screw conveyor from below.

  In other words, if the connection structure of the conveyor stopper to the top plate or the rising structure from the top plate is appropriate, even if the horizontal screw conveyor is lowered above the grain tank, it will not hit the grain tank directly. The tank top plate is elastically deformed because it hits the conveyor stopper and the impact applied to the conveyor stopper is transmitted to the tank top plate and the tank top plate is made of resin. It is relaxed and the horizontal screw conveyor is not easily deformed or damaged.

  Therefore, according to the first aspect of the present invention, even when the horizontal screw conveyor is lowered above the grain tank and hits the conveyor stopper portion, it is possible to prevent the screw conveyor from being deformed or damaged. In addition, the resin tank can be advantageously used in terms of structure and economy by using the impact mitigation means.

  In the second aspect of the invention, in the configuration of the first aspect of the invention, the stopper main body and the top plate of the grain tank are arranged so that the stopper main body of the conveyor stopper portion becomes a grip for supporting the grain tank. There is a space.

  That is, for example, when removing and attaching a grain tank, it becomes easier to attach and detach if a fall or standing operation is performed on the bottom screw case. At this time, if the stopper main body of the conveyor stopper portion is operated using the grip, an operation force is applied to the top plate to facilitate the inclining or standing operation.

  Therefore, according to the second aspect of the present invention, when removing and attaching the grain tank, it is easy to apply an operating force to the top plate, and it is possible to easily perform a fall or standing operation. In addition, the structure can be simplified and the cost can be reduced by using the conveyor stopper portion as the grip means.

  In the third aspect of the invention, in the configuration of the first or second aspect of the invention, the conveyor stopper portion is manufactured as a separate part from the grain tank and is placed and connected on the top plate of the grain tank. Yes.

  In other words, the conveyor stopper is compact but has a predetermined strength, or it is manufactured separately from the metal tank and the grain tank so that it can be manufactured separately and handled separately from the grain tank. However, the grain tank can be provided with a conveyor stopper portion protruding from the top plate.

  Therefore, according to the third invention, the grain tank is provided with the conveyor stopper portion so as to avoid the deformation and breakage of the screw conveyor, and can be obtained compactly and inexpensively from the surface of the conveyor stopper portion. Can do.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a body frame of a self-propelled aircraft including a crawler type traveling device 1, a driving unit equipped with a driving seat 2, and a driving unit equipped with an engine 3 provided below the driving seat 2. 4 is connected to the front part 4 of the cutting, and the grain tank 6 is arranged on the rear side of the machine body frame 4 on the rear side of the pre-cutting part 5 and immediately behind the driver seat 2. 10 is provided to configure the combine.

  This combine harvests rice, wheat, and the like. The pre-cutting processing unit 5 includes a lowering operation state in which the lower portion of the pulling device 5a is located near the ground, and the pulling device 5 and the like from above the ground. It is supported so that it can be lifted up and down in a lifted non-working state. When the pre-cutting processing unit 5 is in the descending work state and the self-propelled machine is traveling, the pre-cutting processing unit 5 raises the planted culm and causes the device 5a to start and process, and the clipper-type cutting device 5b performs the cutting process. Then, the harvested cereal meal is conveyed toward the rear of the machine body by the supply device 5c and supplied to the threshing device 6. The threshing device 6 threshs the harvested cereal from the pre-cutting processing unit 5, and the grain tank 10 collects and stores the threshed grains from the threshing device 6.

  As shown in FIGS. 3 and 4, the grain tank 10 is made by molding a synthetic resin material and has an opening 11 at the bottom of the grain tank 10. The bottom screw case 20 made of sheet metal is connected to the inside of the bottom screw case 20 by the bottom opening 11 so as to be detachable on the top of the bottom screw case 20.

  As shown in FIG. 3 and the like, a bottom screw 21 is provided inside the bottom screw case 20 so as to be freely driven, and a lower part communicates with the bottom screw case 20 as a discharge part of the grain tank 10 and a screw shaft is connected to the bottom screw case 20. A vertical screw conveyor 22 vertically linked to the screw 21 is provided on the rear side of the grain tank 10 and a horizontal screw conveyor 23 is extended from the upper end of the vertical screw conveyor 22.

  The base of the transfer cylinder 23a of the horizontal screw conveyor 23 is communicated with the upper end of the transfer cylinder 22a of the vertical screw conveyor 22 so as to be rotatable around the horizontal axis X, and the transfer cylinder 22a of the vertical screw conveyor 22 is provided. A hydraulic elevating cylinder 25 is mounted over the cylinder bracket 25a and a cylinder bracket 25b provided on the connecting arm 24 provided in the horizontal screw conveyor 23. The elevating cylinder 25 moves the horizontal screw conveyor 23 around the horizontal axis X by a vertical screw. The conveyor 22 is configured to perform an up-and-down operation. The screw shaft (not shown) of the horizontal screw conveyor 23 and the screw shaft (not shown) of the vertical screw conveyor 22 so that the horizontal screw conveyor 23 can be swung up and down while being linked to the vertical screw conveyor 22. (Not shown) are linked via a bevel gear mechanism (not shown).

  The conveying cylinder 22a of the vertical screw conveyor 22 is rotatably connected to a gear case 26 connecting the vertical screw conveyor 22 and the bottom screw case 20, and a turning gear mechanism 27 is provided at the lower end of the conveying cylinder 22a. The electric swivel motor 28 (see FIG. 3) is interlocked, and the electric swivel motor 28 rotates the conveying cylinder 22 a of the vertical screw conveyor 22, whereby the horizontal screw conveyor 23 is turned into the screw of the vertical screw conveyor 22. It is comprised so that turning operation may be performed with respect to the self-propelled machine body around the axis.

  As a result, the bottom screw 21 is driven by switching the clutch (not shown) for the bottom screw 21 to the engaged state, whereby the threshing grains stored in the grain tank 10 are converted into the vertical screw conveyor 22 and the horizontal screw. It can be carried out by the conveyor 23.

  That is, when the bottom screw 21 is driven, the driving force of the bottom screw 21 is transmitted to the screw shafts of the vertical screw conveyor 22 and the horizontal screw conveyor 23 to drive the vertical screw conveyor 22 and the horizontal screw conveyor 23, and the grain tank 10. The threshing grains that have fallen into the bottom screw case 20 from the bottom opening 11 are discharged to the rear side of the bottom screw case 20 by the bottom screw 21, and the threshing grains from the bottom screw case 20 are inherited by the vertical screw conveyor 22 and lifted. Then, the threshing grains from the vertical screw conveyor 22 are inherited by the horizontal screw conveyor 23 and are laterally fed, and are discharged from a discharge port 23b (see FIG. 1) located at the conveyance end portion of the horizontal screw conveyor 23. Then, the horizontal screw conveyor 23 is turned by the turning motor 28, and the horizontal screw conveyor 23 is raised and lowered by the lifting cylinder 25, so that the discharge port 23b of the horizontal screw conveyor 23 is positioned at a desired location around the self-propelled machine body. And can be carried out to any location around the self-propelled aircraft.

  As shown in FIGS. 3 and 4, the grain tank 10 is provided with a conveyor stopper portion 30 protruding upward from the top plate 12 of the grain tank 10. As shown in FIGS. 7 and 8, the conveyor stopper portion 30 has a stopper main body 31 composed of a bent body portion of a bent circular steel pipe that is bent so that one end side is laterally directed and the other end side is vertically directed. , A support column 33 composed of a vertical portion of the bent circular steel pipe body, a support column 32 composed of a circular steel pipe connected to the end of the stopper body 31, and a lateral direction of the machine body connected to the lower ends of the pair of left and right support columns 32, 33. A mounting seat 34 made of a sheet metal, and a mounting seat 35 made of a strip metal plate extending from the middle of the mounting seat 34 toward the rear of the machine body. That is, the conveyor stopper portion 30 is made of a metal made as a separate part from the grain tank 10, and the top plate of the grain tank 10 is formed by the mounting seat 34 facing the machine body and the mounting seat 35 facing the machine body. 12 is mounted on the top plate 12 and connected to the top plate 12 by connecting bolts 36 for fastening and connecting the mounting seats 34 and 35 to the top plate 12, so that the upper plate 12 protrudes upward from the machine body, and The grain 37 is provided with a space 37 between the stopper body 31 and the top plate 12 in which a hand can be inserted between the stopper body 31 and the top plate 12 so that the stopper body 31 becomes a grip for supporting the grain tank. It is provided on the top plate of the grain tank 10.

  That is, even if the horizontal screw conveyor 23 swiveled above the grain tank 10 is lowered by an erroneous operation or the like, the conveyor stopper portion 30 receives the horizontal screw conveyor 23 from the lower side by the stopper main body 31 as shown in FIGS. Then, the impact when the horizontal screw conveyor 23 comes into contact with the stopper main body 31 is transmitted to the top plate 12 via the mounting seats 34 and 35 to elastically deform the top plate 12, thereby causing the collision of the horizontal screw conveyor 23. The lateral screw conveyor 23 is received and supported while being less susceptible to deformation and breakage by reducing the impact.

  In addition, as shown in FIG. 6, when the grain tank 10 is detached from the bottom screw case 21, it can be easily detached by performing a fall or standing operation on the bottom screw case 21. In such a case, by using the stopper main body 31 for a grip, it is easy to give the tabletop 12 an inclining or standing operation force, and the grain tank 10 can be easily inclined or standing.

  The conveyor receiver 38 shown in FIGS. 1 and 2 supports the horizontal screw conveyor 23 during work or traveling. Reference numeral 13 shown in FIGS. 2, 6 and the like is a transparent window of the grain tank 10.

  9 and 10 show a grain tank 10 having another embodiment structure. In this grain tank 10, when the synthetic resin material is molded to produce the grain tank 10, the conveyor stopper portion 30 is shown. At the same time, it is made by molding a synthetic resin material.

  That is, the conveyor stopper portion 30 is made of synthetic resin and is integrally formed on the top plate 12 of the grain tank 10.

  FIGS. 11 and 12 show a grain tank 10 having still another embodiment structure. In this grain tank 10, when the synthetic resin material is molded to produce the grain tank 10, the conveyor stopper portion. 30 is also produced by molding a synthetic resin material at the same time.

  That is, the conveyor stopper portion 30 is made of synthetic resin and is integrally formed on the top plate 12 of the grain tank 10. Moreover, the window 13 which sees through the inside of the grain tank 10 from the exterior in the front wall part of the conveyor stopper part 30 is provided.

Side view of the entire combine Top view of the entire combine Side view of grain tank arrangement part Front view of grain tank arrangement part Side view of grain tank conveyor stopper section Front view showing the kernel tank desorption procedure Front view of conveyor stopper Perspective view of conveyor stopper Side view of the conveyor stopper part arrangement part of a grain tank provided with another implementation structure The front view of the conveyor stopper part arrangement | positioning part of a grain tank provided with another implementation structure Side view of the conveyor stopper part arrangement part of a grain tank provided with another implementation structure The front view of the conveyor stopper part arrangement | positioning part of a grain tank provided with another implementation structure

Explanation of symbols

6 Threshing device 10 Grain tank 12 Top plate 20 Discharge part 22 Vertical screw conveyor 23 Horizontal screw conveyor 30 Conveyor stopper part 31 Stopper body 37 Space

Claims (3)

A vertical tank conveyor that is equipped with a grain tank that collects and stores the grain from the threshing device, and that stores the grain stored in the grain tank, and that is connected to the discharge part of the grain tank. A combine configured to be carried out from the vertical screw conveyor by a horizontal screw conveyor that is freely extended and swiveled,
The grain tank is configured as a resin tank,
A combine in which the grain tank is provided with a conveyor stopper portion that protrudes upward from the top of the grain tank and receives and acts on the horizontal screw conveyor from below.   The combine according to claim 1, wherein a space is provided between the stopper body and the top plate of the grain tank so that the stopper body of the conveyor stopper portion becomes a grip for supporting the grain tank.   The combine according to claim 1 or 2, wherein the conveyor stopper portion is manufactured as a separate part from the grain tank and is mounted on the top plate of the grain tank.

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