JPS592248B2 - Grain storage device in combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grain storage device installed in a grain harvesting machine such as a combine harvester or a harvester. The multiple grain drop ports opened at the bottom of the gutter are used to effectively utilize the grains themselves filling the flow path below the grain drop port, and the flow path is sequentially moved from the flow path at the transfer start end to the flow path at the transfer end side. The first step is filled with grains towards the end of the transfer, and the second step is filled with grains from the end of the transfer to the start of the transfer using the space inside the grain hopper, contrary to the first step. Accordingly, a grain storage device is provided in which the grain hopper can be filled with grains from the second stage on top of the grains filled in the first stage.

The grain storage device of the present invention, which achieves the above object, is provided with a transfer helix having helical blades for laterally transferring grains in a grain hopper having a plurality of grain discharge ports at the bottom. A helical gutter whose upper side is open is provided below, and a plurality of grain drop ports opened at the bottom of the helical gutter are used to transport the grains through each grain flow path formed below the grain drop ports. The hopper is configured to communicate with a plurality of grain discharge ports of the hopper, block the grain drop port with grains filling the downstream path on the transfer start end side, and sequentially fill the downstream path with the grains toward the terminal end side. In addition, a space portion filled with grains is provided in the grain hopper in a direction opposite to the transfer direction of the transfer helix from above the transfer end side of the transfer helix toward the grain flow downward path on the transfer start end side. It is characterized by:

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, drawings showing an embodiment of the configuration of the present invention will be described.

1 is a combine harvester which is an example of a grain harvesting machine, in which a threshing part 3 is mounted on the machine base, and a reaping part 2 is mounted in the front.
The husk harvested by the reaping section 2 is transported to the threshing section 3 for threshing.

Reference numeral 4 denotes a grain lifting machine extending from the threshing section 3 to a grain hopper 5 provided on one side upper part of the combine harvester 1, and the grain lifting machine 4 is equipped with a grain lifting helix 4a. Along with being
The upper part of the grain lifting machine 4 is communicated with a grain discharge port 6 opened at the upper part of one side of the grain hopper 5, and the grains threshed in the threshing section 3 are discharged into the grain hopper 5. There is.

Reference numeral 7 denotes a transfer helix that extends from one side wall 8 of the grain hopper 5 to the opposite side wall 9. The lower part of the transfer helix 7 is surrounded by a helical gutter 10 that is open on the upper side, and the starting end of the transfer helix 7 The side faces the grain discharge port 6.

The helical gutter 10 has a grain hopper 5 as shown in FIG.
The grain discharge port 6 is placed close to the rear side wall 11 where the grain discharge port 6 is opened, and between the rear side wall 11 and the rear wall 11, the grains overflowing from above the helical gutter 10 are transferred from the lower unit grain chamber 26 to the unit grain chamber. By arranging the helical gutter 24 with a minimum interval necessary for the helical gutter 7 to sequentially fall and fill in the direction opposite to the conveying direction, there is a gap between the helical gutter 10 and the front wall 18. Arranged to form a wide space for overflowing grain to sequentially fall from the lower unit grain chamber 27 to the unit grain chamber 25 in a direction opposite to the transfer direction of the transfer helix 7 and fill it. At the same time, a plurality of grain drop ports 10a and 10b are opened at the bottom of the helical gutter 10 at predetermined intervals.

Further, a space is formed between the transfer helix 7 in the grain hopper 5 and the upper upper wall 15 to be filled with grains in a direction opposite to the transfer direction of the transfer helix 7.

The helical blades 7a of the transfer helix 7 are not arranged over the entire length of the helical gutter 10 as shown in FIG.
It extends to near the top of the grain drop port 10b on the grain transfer end side in the grain transfer direction.

The transfer helix 7 is, as shown in FIG.
and a bevel gear 4b provided at the upper end of the grain lifting helix 4a of the grain lifting machine 4.
and a bevel gear 12a that meshes with this bevel gear 4b.
It is designed to rotate in conjunction with the grain lifting helix 4a by a chain suspended from a sprocket H3a fixed to the transmission shaft 12 to which the grain lifting helix 4a is attached.

Numeral 14 is a regulation plate suspended from the upper wall 15 of the grain hopper 5, and the regulation plate 14 faces the grain discharge port 6 with the transfer helix 7 in between.

Numerals 16 and 17 are grain chambers formed by partitioning the lower part between the rear wall 11 and front wall 18 of the grain hopper 5 by partition walls 19, 19, and the grain chambers 16, 17 are They are arranged in parallel in the transfer direction of the transfer helix 7.

The partition walls 19, 19 are below each grain chamber 16, 17.
The upper edge 19a has a distance W from the bottom surface of the helical gutter 10, as shown in FIG.

20.21 is a grain flow path for communicating the plurality of grain drop ports 10a, 10b opened at the bottom of the helical gutter 10 with the plurality of grain discharge ports 30 of the grain hopper 5; In the embodiment, the grain flow paths 20 and 21 include grain drop ports 10a each having a proximal end opened at the bottom of the helical gutter 10;
10b, each of which has a lower end facing each grain discharge port 30 opened at the bottom of the grain hopper 5. The paths 20 and 21 have side walls 20a on the left and right, respectively.

21a is provided and the upper side is open.

The grain chambers 16 and 17 each further have an auxiliary partition wall 22.
and 23, the transfer helix 7
unit grain chambers 24, 25 arranged in parallel in a direction orthogonal to the transfer direction of
and 26 and 27, respectively.

The auxiliary partition walls 22 and 23 are provided with their lower portions inclined toward the unit grain chambers 24, 25 and 26, 27, and the upper edges 22a of the auxiliary partition walls 22, 23,
23a is located a distance H below the upper edge 19a of the partition wall 19 of the grain chambers 16, 17, as shown in FIG.

The bottoms of the unit grain chambers 24.25 and 26.27 are respectively opened to the shell culm discharge port 30, and are equipped with shutters 28.29 slidably.
By sliding 9, each shell culm discharge port 30 can be opened and closed.

Reference numeral 31 denotes a hanger arranged in parallel in the vicinity of each shell culm discharge port 30, and is adapted to lock the upper end of each grain storage bag 32 detachably installed in each shell culm discharge port 30. ing.

33 is a pedestal for the grain storage bag 32.

Reference numeral 34 denotes a grain fullness sensor provided near the bottom of the unit grain chamber 27 at the final position, and when the grains filling the unit grain chamber 27 reach the position of the grain fullness sensor 34. It is configured to issue an alarm.

Reference numeral 35 denotes a grain fullness sensor provided above the opposing side wall 9 of the grain hopper 5 at a predetermined distance from the upper wall 15 of the grain hopper 5, and is configured to detect when the grain hopper 5 is full. It is configured to issue an alarm when the grain reaches the grain fullness sensor 35.

Note that the upper wall 15 of the grain hopper 5 has a hinge 36 and a locking tool 3.
The upper wall 15 has an overflow port 38 located above the unit grain chamber 26, and the overflow port 38 is provided with a lid 39. There is.

Next, the operation of the present invention will be explained.

The shell culms harvested and transported by the reaping section 2 are threshed by the threshing section 3, and the threshed grains are transported by the grain lifting machine 4 and discharged from the grain outlet 6 into the grain hopper 5.

Most of the grains released into the grain hopper 5 are sent to the helical gutter 1.
0, but the grains at the initial velocity collide with the regulation plate 14 and fall into the helical gutter 10 or the unit grain chamber 2.
4, while the grains with lower initial velocity fall directly into the unit grain chamber 24 from the spacing.

The grains that have fallen into the helical gutter 10 are transferred over the helical gutter 10 toward the grain drop port 10a on the transfer starting end side by the transfer helix 7 that rotates in conjunction with the lifting helix 4a, as shown in FIG. First, the grains flow down on the grain flow path 20 from the grain drop port 10a on the starting end side, and sequentially fill the unit grain chamber 24 with the shutter 28 in the closed state.

Before this unit grain chamber 24 is filled, the grains flow over the upper edge 22a of the auxiliary partition wall 22 and into the next unit grain chamber 25 where the shutter 28 is in the closed state, as shown in FIG. .

As this unit grain chamber 25 is sequentially filled with grains, the grains filling the grain flow path 20 become stagnant due to the angle of repose of the grains, as shown in FIG.
Therefore, the grains transferred by the transfer helix 7 pass through the grain fall port 10 on the starting end side of the helical gutter 10.
a and then fall from the grain drop port 10b on the terminal side.

The grains falling from the grain drop port 10b on the terminal side are
As shown in the figure, the grains flow down the flow path 21 and are exposed to the shutter 2.
The unit grain chambers 26 in which the grains 9 are in the closed state are sequentially filled.

Before this unit grain chamber 26 is filled, the grains flow over the upper edge 22a of the auxiliary partition wall 22 and into the next unit grain chamber 27 where the shutter 29 is in the closed state, as shown in FIG. .

As this unit grain chamber 27 is sequentially filled with grains, the grains filling the grain flow path 21 become stagnant due to the angle of repose of the grains, as shown in FIG. 10
b will be occluded.

Note that when the unit grain chamber 27 is filled with a predetermined amount of grains, the grain fullness sensor 34 is activated to issue an alarm.

In this way, the grain culm flow paths 20 and 21 below the helical gutter 10 in the grain hopper 5 are filled with grains transferred by the transfer helix 7 sequentially from the transfer start end side to the transfer end side. The particles can be filled sequentially in the first step using the angle of repose of the particles.

As shown in FIG. 14, after the grain hopper 5 is filled with grains up to the lower shell culm flow path 21 on the transfer end side below the helical gutter 10, the helical gutter is opened as shown in FIG. Since the upper part of 10 is in an open state, the transfer helix 7
As the transfer end side of the helical gutter 10 is filled with grains transferred by the grains, the grains will overflow from both sides of the helical gutter 10.

The grains overflowing from the transfer end of the helical gutter 10 to both sides are transported to a grain hopper 5 which communicates with each grain flow path 21° 20 downward in the direction along the helical gutter 10 from above the helical gutter 10.
The inner space is filled with the repose angle of grains in the opposite direction to the transfer direction of the transfer helix 7 from above the transfer end side of the transfer helix 7 to upward of the grain flow path 20 on the transfer start end side. Through the two strokes, the grain hopper 5 can be filled with grains by utilizing the fact that the grains are further filled on top of the grains filled in the first stroke.

Note that when the unit grain chamber 27 is filled with a predetermined amount of grains, the grain fullness sensor 34 is activated to issue an alarm.

In this way, in the opposite direction to the transfer direction of the transfer helix 7, the space filled with the repose angle of grains is sequentially moved from the upper space on the transfer end side of the transfer helix 7 to the upper space of the grain flow path 20 on the transfer start side. In the second stroke, the spiral blade 7a as in the embodiment
When extending above the grain drop port 10b on the transfer end side, the filled grain fills the space of the grain hopper 5 from above the helical gutter 10 at the end of the helical blade 7a at the angle of repose of the grain. is the distance between the upper part of the grain flow path 20 on the transfer start end side and the upper part of the grain flow path 21 on the transfer end side, with the helical blade 7a end position which approaches the transfer start end as the distance moves away from the end position of the helical gutter 10 as the apex. Taking advantage of the fact that both are filled at a predetermined angle of repose, the grains are transferred to the grain flow path 2 on the starting end side.
Since the grain hopper 5 can be sufficiently filled even above 0, it is possible to secure the maximum amount of grains that fill the entire inside of the grain hopper 5.

In this second process of filling the grain hopper 5 with grains, when the height of the pile of filled grains increases, the grains overflow from the overflow port 38 of the upper wall 15 and clog the transfer helix 7. In addition to preventing this, it also warns of the full state.

In the above embodiment, the lower part of the grain hopper 5 is divided into two rows of grain chambers, and each of these grain chambers is further divided into two stages. It goes without saying that the lower part of the grain hopper 5 may be divided into any number of rows and stages.1 In short, the present invention is a method for storing grains horizontally in a grain hopper having a plurality of grain discharge ports at the bottom. A transfer helix for transferring in a direction is provided, a transfer helix having the helical blade is provided, and a plurality of grain drop ports opened at the bottom of the helical gutter are formed below the grain drop ports. The grains are communicated with a plurality of grain discharge ports of the grain hopper through passages, and the grains filling the downstream passage on the transfer start end block the grain drop opening and sequentially move the grains toward the downstream passage on the terminal side. The grain hopper is configured to be filled with grains, and the grains are filled in the grain hopper from above the transfer end side of the transfer helix in a direction opposite to the transfer direction of the transfer helix toward the grain flow downward path on the transfer start side. Since a space is provided for the grain drop opening at the bottom of the helical gutter, the grains filling the grain flow path below the grain drop opening are used to sequentially move from the transfer start end to the transfer end. By automatically closing the grain flow path below the helical gutter in the grain hopper, the first-stroke grains transferred by the transfer helix are sequentially directed from the transfer start side to the transfer end side. It can be filled in order.

In addition, after the grain flow path below the helical gutter in the grain hopper is filled with grains up to the transfer end side, the helical gutter with its upper side open allows the grains to flow sequentially from above the transfer end side of the transfer helix to the transfer start end side. By using the second step in which the space in the grain hopper is automatically filled with grains toward the upper side of the grain flow path, Although the space of the grain hopper can be sequentially filled with grains from the transfer end side to the transfer start side in the opposite direction to the transfer direction of the transfer helix, the helical blade of the transfer helix is Since the helical gutter is not installed over the entire length of the gutter, but rather extends to the upper part of the grain drop port located at the end of the transfer, the grain is filled with grains sequentially from the helical planting soil at the end of the helical blade at the angle of repose. The apex of the grains is unevenly distributed on the transfer starting end side, so that the grain flow path on the transfer starting end side can be sufficiently filled with grains, so that the entire grain hopper is filled with the maximum amount of grains. be able to.

As in the embodiment, when the grain flow path is constructed of parallel plates with the base end fixed to the grain fall port of the helical gutter and the lower end facing above the grain discharge port of the grain hopper, the upper opening By utilizing the angle of repose of the grains that fill and stagnate on the original plate of the opening, it is possible to block the grain drop opening on the starting end side and sequentially fill the grain flow path on the terminal end side with grains. can.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view of a combine equipped with the grain storage device of the present invention, FIG. 2 is an overall front view of the grain storage device, and FIG. The figure is a side view of the grain storage device, Figure 4 is a vertical front view of the main part, Figure 5 is a vertical side view of the main part, Figure 6 is a perspective view of the main part, and Figures 7-8
The figure is a plan view of the main part, and FIGS. 9 to 15 are perspective views showing the operation. 5 is a grain hopper, 7 is a transfer helix, 10 is a helical gutter, 1
0a and 10b are grain falling ports, and 20 and 21 are grain flow paths.

Claims (1)

[Scope of Claims] 1. A transfer helix having helical blades for laterally transferring grains is provided in a grain hopper having a plurality of grain discharge ports at the bottom, and an upper side is opened below the transfer helix. A helical gutter is provided, and a plurality of grain drop ports opened at the bottom of the helical gutter are connected to a plurality of grain discharge ports of the grain hopper through each grain flow path formed below the grain drop ports. The grain hopper is connected to the outlet so that the grain falling port is blocked by the grains filling the flow path on the transfer start end side, and the grains are sequentially filled toward the flow path on the terminal end side. The grain storage is characterized in that a space filled with grains is provided in a direction opposite to the transfer direction of the transfer helix from above the transfer end side of the transfer helix toward the grain flow downward path on the transfer start end side. Device. 2. The grain storage device according to claim 1, wherein the helical blade extends to the vicinity of the upper side in the grain transport direction of the grain fall port on the transport terminal side. 3. Claim 1, wherein the grain flow path is constituted by an upwardly-opening gangboard whose base end is fixed to the grain fall port of the helical gutter and whose lower end faces above the grain discharge port of the grain hopper. Grain storage device.