JPH025720Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a grain recovery device in a combine harvester.

[Prior art and its problems] A grain tank is installed to store threshed grain, and the grain stored in the tank is discharged and supplied to a collection vehicle or the like that is waiting near the field using a thrower connected to the lower part of the side wall of the tank. Devices that do this have already been proposed.

In this type of machine, the thrower itself is installed so as to be connected to the bottom of the grain tank, so the range in which grain is discharged is limited by the lifting action of the thrower, and the thrower's lifting cylinder is set at the discharge position. Furthermore, depending on the field conditions, it may not be possible to release the grain to a collection vehicle and collect it.Furthermore, at the end of the work, the long grain lifting tube is bent in the middle, and the grain is removed. Problems remained, such as having to store it along the top or side of the tank, which complicated the structure.

In order to solve this problem, the thrower is installed at a position slightly higher than the top surface of the grain tank, and by making it possible to rotate horizontally and vertically, the direction in which the stored grain is released can be changed. The applicant has made a proposal as Utility Model Application No. 57-56075 (Japanese Utility Model Application No. 58-158652) that aims to make the storage of grain-lifting cylinders more convenient. However, problems remain with this type of device, such as the fact that it requires a considerable amount of effort to lift and turn the long and heavy grain lifting cylinder that is suspended horizontally.

The purpose of this invention is to enable the thrower to rotate horizontally and vertically with respect to the main body of the combine, thereby making it possible to arbitrarily release the stored grain, and in addition, to simplify the storage of the lifting cylinder. In addition, the aim is to provide a device that allows the grain lifting cylinder to be moved from the storage position to the release position automatically and in a one-touch manner by rotating the thrower, making the work easier and more accurate. .

[Means for Solving the Problems] The structure of the present invention that solves the problems of the prior art is that a grain tank for storing threshed grains mounted on a combine harvester is provided with a screw that protrudes upward from the top surface of the grain tank. A guide member that allows a thrower connected via a conveyor 3d to be horizontally and vertically rotatable, and guides and displaces a grain lifting cylinder of the thrower from a storage position with respect to the combine main body to a grain discharging position. In the grain collecting device for a combine harvester associated with the present invention, the screw conveyor 3d has a front surface having an L front surface having a plate surface orthogonal to the traveling direction of the combine main body on the outer side of the upper end.
The lower side base of the letter-shaped adjustment plate 8 is fixed, and the guide elongated hole 9 is formed in the vertical direction of the upright side of the adjustment plate 8 in the vertical position. The guide member 10 is connected to the guide slot 9 in a vertically adjustable manner, with the outer end of a guide member 10 having a planar shape of approximately 1/4 circular and having a front face inclined outwardly upward.
The inner end of the grain tank is pivotally supported on the grain tank, and the thrower is further provided with means for moving the center of gravity of the grain lifting cylinder of the thrower.

[Embodiment] To explain the details of the embodiment of the present invention with reference to the drawings, A shows a combine main body, B shows a reaping part, C shows a threshing and sorting part, D shows a grain tank, and E shows a disk-type culm cutter. The harvested grain culms are threshed in a handling cylinder 1 in a threshing and sorting section C, and then passed through a sorting body 2.
The grains sorted by the horizontal screw conveyor 3
a. It is configured to be accommodated in a grain tank D by a vertical screw conveyor 3b.

Reference numeral 3c is a screw conveyor that is mounted on the bottom of the grain tank D, and is provided parallel to the direction of movement of the combine main body A; 3d is a screw conveyor that is mounted on the bottom of the grain tank D;
A screw conveyor is provided along the front wall of the grain tank D, and its upper end protrudes slightly above the upper surface of the grain tank D.The lower end of this screw conveyor 3d is connected to the delivery end of the screw conveyor 3c. ing.

A lower part of a grain guide tube 4 is attached to the upper end of the screw carrier 3d so as to be horizontally rotatable, and the upper end of the screw carrier 3d intervenes within the grain guide tube 4. Further, the opening provided on one side of the grain guide cylinder 4 is communicated with the central part of the grain lifting drum 5 that constitutes the thrower F, and a flip-up wing 6 is rotatably built in the grain lifting drum 5. is,
Further, the grain lifting cylinder 5 is rotatable with respect to the grain guide cylinder 4, and more specifically, the grain lifting cylinder 7 provided in the centrifugal direction of the grain lifting cylinder 5 is connected so as to be rotatable in the vertical direction. I am forced to do it. Incidentally, this grain lifting cylinder 7 is constructed so that its length can be freely changed.

As shown in FIG. 2, the screw conveyor 3
The lower base of the adjusting plate 8 having an L-shaped front face is attached to the outer side of the upper end of d, more specifically, to the outer side of the screw conveyor 3d perpendicular to the direction of movement of the combine main body A. Guide elongated holes 9 are formed in the vertical direction of the sides. Also,
As is clear from Figure 3, the planar shape of 10 is 1/
A guide member having a four-circle shape and having a front surface inclined upward toward the outside, one end of which is a tightening screw 11 movably attached to the guide slot 9.
The guide member 10 is connected to the adjustment plate 8 so as to be vertically adjustable, and the other end of the guide member 10 is connected to the upper wall of the grain tank D. The above guide slot 10
As shown in FIG. 2, horizontal long holes 10a and 10b are formed at both ends of the
0a is the tightening screw 11, and the other elongated hole 10b
A pin 12 is inserted through the guide member 10 so that the outer end of the guide member 10 can be adjusted in the vertical direction along the vertical side of the adjustment plate 8.

Further, as shown in FIG. 2, one end of the guide member 10,
Specifically, the side attached to the adjustment plate 8 is set at a high position, the other end is set at a low position, and the base of the grain frying cylinder 7 is mounted and supported on the upper surface of this guide member 10, and the grain frying cylinder 7 is placed in the state shown in FIG. By rotating the cylinder 7 by 90 degrees to the outside of the combine main body, the grain lifting cylinder 7 automatically assumes the discharge position. A support member 13 is provided on the upper surface of the grain tank D to receive and restrain the tip of the grain lifting cylinder 7 in a stored state, which will be described later. Reference numeral 14 in the figure is an arc-shaped recess that is provided in the middle of the guide member 10 and for fixing the grain lifting cylinder 7. This is for setting it at right angles to the side.

Next, the center of gravity moving means for moving the center of gravity of the grain lifting cylinder 7 closer to the grain lifting cylinder 5 side will be explained.
As shown in the figure, holders 15 and 16 are provided on the upper part of the grain guide tube 4 and on the upper surface of the middle part of the grain lifting tube 7, respectively, and one holder 15 has one end of a spiral spring 17 at its inner end. Insert the connected adjustment screw 18,
The nut 19 screwed onto the other end of the above-mentioned receiver 15
At the same time, the spiral spring 17
The other end is connected to the other receiver 16, and the elasticity of the spiral spring 17 moves the center of gravity of the grain lifting cylinder 7 closer to the grain lifting cylinder 5 side. By moving the adjusting screw 18 using the nut 19, the elasticity of the spiral spring 17 is adjusted to increase or decrease the amount of movement of the center of gravity.

In addition, in the embodiment shown in FIGS. 4 and 5, one end of a lever 20 is fixed to the grain lifting part of the grain lifting drum 5 at a symmetrical position opposite to the grain lifting cylinder 7, and the lever 20 is provided with a balance. A weight 21 is movably provided, and by movement of the balance weight 21, the center of gravity of the grain lifting cylinder 7 is moved. In the figure, 22 is a set screw of the balance weight.

[Effects of the invention] Since the present invention is constructed as described above, the following effects can be obtained.

(a) To be thrown up by the wind force of the grain thrower,
By extending the grain lifting cylinder, not only can the discharging distance be arbitrarily obtained, but also the thrower can be rotated in a 360° direction, so that the direction of grain discharging can be adjusted at any time depending on the field conditions. Since the thrower can be changed and rotated vertically, the height angle of the grain lifting cylinder can be arbitrarily selected, making it possible to transfer the stored grain in the grain tank to other areas with high efficiency. (b) the thrower is pivotable and, in addition, the thrower's grain barrel is associated with a guide member that induces a displacement of the grain barrel from the retracted position to the ejected position; (c) In particular, in this invention, the grain lifting cylinder of the thrower can be set from the storage position to the releasing position with one touch, which simplifies the ejection and storage operations. Since the outer end of the guide member for guiding the loading of the screw can be vertically adjusted with respect to the upright sides of the L-shaped adjusting plates 8, 17 provided at the outer upper end of the screw conveyor 3d in a substantially vertical position, this is necessary. The height angle of the thrower's grain lifting cylinder can be selected depending on the situation, and the efficiency of transferring grains in the grain tank can be improved.

(d) The grains fed into the grain lifting cylinder can be flipped up and discharged in any direction by vertically and rotating the grain lifting cylinder. In particular, in this invention, the grain lifting device is equipped with a center of gravity moving means for moving the center of gravity of the grain lifting cylinder closer to the grain lifting cylinder side, so vertical rotation and turning operations of the grain lifting cylinder are extremely easy. This process improves grain collection and transportation efficiency, and saves labor.

[Brief explanation of the drawing]

Fig. 1 is a side view of the combine harvester, Fig. 2 is a partially cutaway rear view of the same, Fig. 3 is a plan view of the thrower section, Fig. 4 is a side view of the main parts showing another embodiment, and Fig. 5 is the same. FIG. A... Combine main body, B... Reaping part, C...
Threshing sorting section, D... Grain tank, E... Disk type culm cutter, F... Thrower, 3a, 3b,
3c, 3d...Screw conveyor, 4...Grain guide tube, 5...Grain lifting cylinder, 6...Flip-up wing, 7...
Grain lifting cylinder, 8...adjustment plate, 9...guiding elongated hole, 10...
... Guide member, 11 ... Tightening screw, 12 ... Pin, 13 ... Support member, 14 ... Recess, 15, 1
6...Payment, 17...Spiral firing, 19...
Natsu, 20...lever, 21...balance weight.

Claims (1)

[Claim for Utility Model Registration] A thrower connected to a grain tank for storing threshed grains mounted on a combine harvester via a screw conveyor 3d projecting upward from the top surface of the grain tank is horizontally rotated, and a grain recovery device for a combine that is associated with a guide member that is rotatable in the vertical direction and guides and displaces the grain lifting cylinder of the thrower from a storage position relative to the combine main body to a grain release position, the screw conveyor The lower base of an adjustment plate 8 having an L-shaped front face and a plate surface perpendicular to the direction of movement of the combine main body is fixed to the outside of the upper end of the body 3d, and the upper and lower sides of the vertically erected sides of the adjustment plate 8 are fixed. A guide slot 9 is formed in the direction, and the guide slot 9 has a planar shape of approximately 1/4.
The outer end of the guide member 10, which is circular and whose front shape is tilted outwardly upward, is connected in a vertically adjustable manner, and the inner end of the guide member 10 is pivotally supported on the grain tank, Furthermore, the grain collecting device for a combine harvester is characterized in that the thrower is provided with means for moving the center of gravity of the grain lifting cylinder of the thrower.