JPH0547573Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention harvests and threshes grain culms planted in a field, and stores the grains discharged from the grain lifting machine of the threshing device in a grain tank. Concerning a grain tank in a combine harvester that discharges appropriately.

(b) Prior art Conventionally, in the grain tank of a combine harvester, an outlet was bored in the inner flow plate of the V-shaped bottom plate, and a closed type receiving trough with a transfer spiral installed was attached to the lower surface of the outlet. It is already known, as shown in Japanese Utility Model Application Publication No. 10750/1983, to attach a shutter to the inner flow plate to open and close the outlet.

(c) Problems to be solved by the invention Since the known grain tank was attached so that the shutter could be inserted and removed under the inner flow plate, the operation was carried out between the threshing device and the grain tank.
Otherwise, it is difficult and troublesome to do so by extending your hand from the outside. In addition, when attempting to remotely control the above-mentioned shutter via a link mechanism, etc., if the link is placed on the outside flow plate side, it will protrude outward and become a hindrance. Even if an attempt was made to position the threshing device further inward, there is no suitable space, so the only option would be to separate the threshing device and the grain tank, and such a structure would increase the width of the machine.

In addition, the gutter is cleaned when the work is completed, etc.
At that time, since the receiving trough is sealed, cleaning work is extremely difficult and there are problems such as grain remaining. In addition, even if it were possible to open and close the receiving gutter with the conventional type described above, cleaning the gutter would be difficult because the receiving gutter itself is located below the inner flow plate and located at the back of the aircraft. There is a problem. Furthermore, in the conventional type described above, the grain tank cannot be rotated outwardly from the machine, and the grain tank side portion of the threshing device and the grain lifting device etc. located between the grain tank and the threshing device cannot be rotated. The disadvantage is that maintenance and inspection of various mechanisms is difficult.

(d) Means for solving the problem The purpose of the present invention is to solve the above-mentioned problems, and the present invention is to provide a pre-processing device 4 in front of a machine base 3 having a traveling device 2, and A threshing device 1 is mounted on one side and a grain tank 7 is mounted on the other side,
In a combine in which the grain tank is rotatably pivoted toward the outside, the bottom plate 1 of the grain tank 7
1, left and right flow plates 11a, 1 connected in a V-shape
1b, an outlet 12 is bored in the lower part of the outer flow plate 11a, and a receiving trough 13 with a transfer spiral 4a installed inside the outlet 12 and whose bottom plate can be opened and closed is attached to the lower surface of the outlet 12. A flow plate 11a is provided at the outlet 12.
A shutter 18 is installed below the flow plate 11b on the inside opposite to the flow plate 11b to open and close the outlet 12 by inserting and removing the shutter 18. A link mechanism for the opening/closing operation system of the shutter 18 is disposed below the inner flow plate 11b at an outer position, and the link mechanism is integrally provided with the grain tank 7 and attached to the grain tank 7. It is characterized by being interlocked with the lever 25.

(e) Action When discharging the grains in the grain tank 7, the transfer spiral 4a and the lifting discharge device (discharge thrower 15) are driven, and then the lever 25 is operated and the shutter 18 is opened via the link mechanism. Then, the grains in the grain tank 7 flow into the receiving trough 13 from the outlet 12, are transferred by the transfer spiral 14a, and are then lifted by the lifting and unloading device and placed on the loading platform of the transport vehicle. .

A shutter 18 for opening and closing the receiving trough 13 and the outlet 12 is disposed below the outer flow plate 11a, and the shutter 18 is inserted and removed below the inner flow plate 11b to open and close the outlet 12. This makes effective use of the space below both flow plates 11a and 11b, and also allows the link mechanism of the shutter opening/closing system to be moved outward from the side plate of the grain tank 7 on the threshing device 1 side when viewed from the longitudinal direction of the machine. By arranging the grain tank 7 and the threshing device 1 below the inner flow plate 11b, the grain tank 7 and the threshing device 1 can be brought as close as possible without being obstructed by the link mechanism.

Moreover, when the work is completed, by opening the bottom plate of the receiving trough 13, all remaining grains can be flowed out from the outside with a simple operation.

Furthermore, when performing maintenance and inspection work on various mechanisms such as the grain tank 7 side portion of the threshing device 1 and the grain lifting device located between the grain tank 7 and the threshing device 1, the grain tank 7 should be Rotate it outward to widen the grain tank 7 side of the threshing device 1,
Although this work is easily performed, the link mechanism of the opening/closing operation system of the shutter 18 is connected to the grain tank 7.
Since it rotates integrally with the link mechanism, inspection and maintenance of the link mechanism can be easily performed from outside.

In addition, there is a lever 2 for opening and closing the shutter 18.
5 and the above-mentioned link mechanism are integrally provided in the grain tank 7, there is no need to disconnect and disconnect the lever 25 and the link mechanism and the grain tank 7 each time the grain tank 7 is rotated. , these can be easily rotated with them attached.

(F) Embodiment 1 is a threshing device mounted on one side of a machine base 3 having a traveling device 2, and in front of the threshing device, a pre-processing device 4 consisting of a reaping device and a grain culm conveying device is installed, and the other On the side, an operation panel 5, a cockpit 6, a grain tank 7, and an engine room 8 are installed in order from the front, and a threshing device 1 is installed.
A straw disposal device such as a cutter 9 or a bundling device is attached to the rear of the container.

Then, the front plate and the rear plate of the grain tank 7 are extended downward, and the outer lower part thereof is connected to the support shaft 10.
is pivoted to the machine base 3 so as to be tilted outward by
The bottom plate 11 is formed into a V-shape by connecting the lower ends of the left and right flow plates 11a and 11b, and an outlet 12 is bored along the lower end of the outer flow plate 11a. An upper side plate 13 whose lower part is bent in a substantially vertical direction is placed on the lower surface of the flow plate 11a above the flow plate 12a by l.
A is vertically installed, and the lower side plate 13b has a U-shaped cross section and has both ends welded to the front plate and the rear plate below the lower mouth edge.
A receiving gutter 13 is constructed by removably screwing a bottom area 13c having a dogleg shape in cross section to the lower ends of the lower side plate 13b and the upper side plate 13a, and the receiving gutter 13 has a transfer spiral 14a installed therein. The rear part of the helical shaft 14 is supported by a bearing on the rear plate, and the front part is supported by a cylindrical body 16 supporting the casing of the discharge thrower 15 via a support arm 17 and a bearing.
The lower side 13c' of the bottom plate 13c is horizontal, and the angle θ ₁ between the upper side 13c'' and the lower side 13c', which are opposite to the downward rotation side of the transfer spiral 14a, is the upward rotation side of the transfer spiral 14a. An angle θ ₂ is formed between the lower side plate 13b and the lower side 13c' which face each other, and the outer upper part of the transfer spiral 14a is formed between the upper side plate 13a and the flow plate 11.
A is formed in a wide space S surrounded by a portion protruded by l to constitute the upper lip 12a.

The shutter 18 is a plate body 1 extending from the flow plate 11b on the side opposite to the outer flow plate 11a, that is, on the side of the threshing device 1.
9 and the lower side plate 13b, the shutter 18 is inserted or removed from between the outer flow plate 11a
The lower surface of the flow plate 11a is parallel to the flow plate 11a, and the lower surface of both ends and the intermediate portion is supported and guided by a plurality of guide plates 20, and guide rails 21 are provided at the upper portions of both ends. On the other hand, long holes 22a provided in the downwardly extending portions of the front plate and rear plate of the grain tank 7,
Both ends of the rod 22 fixed to the lower end of the shutter 18 are fitted into the shaft 22a, and the link 24 is connected to the support shaft 23 attached to the downwardly extending portions of the front plate and the rear plate and located below the inner flow plate 11b. 24 is vertically installed, and the rod 2 is inserted into the elongated hole provided in the links 24, 24.
2, and loosely fit both ends of the link 24.
The middle portion of the grain tank 7 is interlocked with a lever 25 pivotally supported on the front plate of the grain tank 7 by a rod 26. The link mechanism composed of the support shaft 23 and the links 24, 24, etc., when viewed from the front and back direction of the aircraft,
It is disposed at a position outside the side plate of the grain tank 7 on the side of the threshing device 1 and below the flow plate 11b inside the grain tank 7. Incidentally, the front plate and the rear plate of the grain tank 7 near the threshing device 1 are connected to the machine base 3 by links 27, 27 which can be folded in two.

In addition, a grain take-out port 29 having a shutter plate 28 and a take-out cylinder 30 hanging down from the outside from the outlet 12 of the outer flow plate 11a are provided to remove the grains in the grain tank 7. The discharge pipe 31 of the discharge thrower 15 is divided into two parts and screwed together so that the upper part is folded down toward the rear, and corresponds to the lower part of the cockpit 6. A handle 32 for gripping the discharge thrower 15 in order to tilt it laterally is attached to the part, and a stopper 34, which is moved up and down by a lever 33 attached to the handle 32, is fitted into one of a number of recesses provided on the upper surface of the guide plate 35. Discharge thrower 1 by pressure contact
5 tilt angles or storage positions can be selected.

In the above-mentioned combine harvester, when the pre-processing device 4 harvests, transports, and supplies the grain to the threshing device 1, the grain culms are threshed, and the grains, which are sorted and transported by the grain lifting machine 36, are put into the grain tank 7. Ru.

When the grain tank 7 is full, the combine is brought close to a transport vehicle parked on the road, the discharge port of the discharge thrower 15 is faced onto the loading platform of the transport vehicle, and the pulley 37 of the helical shaft 14 is When the helical shaft 14 is driven by inserting a tension clutch that moves toward and away from the tensioned belt, and the lever 25 is tilted outward as shown by the solid line in FIG. 5, the shutter 18 is moved diagonally inward via the link 24. The grains are opened by being pulled downward and flow into the receiving trough 13, and are sent out to the forward discharge thrower 15 by the transfer spiral 14a, and the discharge thrower 15 lifts the fed grains to the loading platform. Load.

When the grains in the grain tank 7 have been completely discharged, or when the loading platform is full and grain discharge is interrupted, the lever 25 is tilted inward.
The shutter 18 enters diagonally upward and the outlet 12
Close.

At this time, when the grain tank 7 is empty, there is no problem in closing the shutter 18, but when discharging is interrupted, in the conventional type, grains are caught between the shutter and the bottom plate, and the grain is completely closed. Although it is not in a closed state, in this plan there is a space S at the outer upper part of the transfer spiral 14a, and the angle of repose of the grains flowing into the receiving trough 13 is set at the upper lip 12a extending downward.
Since there are no grains in the area where the shutter 18 finally enters, the shutter 18 freely enters the predetermined position.

In addition, since the receiving gutter 13 is attached to the lower part of the outer flow plate 11a, it is located on the outer side, and when the work is completed, the butterfly screw is removed and the bottom plate 13c of the receiving gutter 13 is removed. The grains in the receiving trough 13 can be removed very easily from the outside without leaving any residue.

In addition, when performing maintenance and inspection work on various mechanisms such as the grain tank 7 side portion of the threshing device 1 and the grain lifting device located between the grain tank 7 and the threshing device 1, the grain tank 7 should be This operation is performed by rotating the thresher 1 outward to open the grain tank 7 side of the thresher 1, but the lever 25 and the link mechanism are integrally provided in the grain tank 7. Therefore, when rotating the grain tank 7, there is no need to release the link between the lever 25 and the link mechanism and the grain tank 7 one by one, and these can be easily rotated as one unit. Furthermore, since the link mechanism rotates together with the grain tank 7, inspection and maintenance of the link mechanism can be easily performed from outside.

(g) Effects of the invention The present invention pivots the grain tank 7 so that it can rotate outwardly, and connects the bottom plate 11 of the grain tank 7 to left and right flow plates 11a connected in a V-shape, 11b, an outlet 12 is bored in the lower part of the outer flow plate 11a, and a receiving trough 13 with a transfer spiral 14a built inside and whose bottom plate can be opened and closed is attached to the lower surface of the outlet 12. The outflow port 12 is provided with a shutter 18 that opens and closes the outflow port 12 by inserting and removing it from below the inner flow plate 11b on the opposite side of the flow plate 11a, and also includes a shutter 18 that opens and closes the outflow port 12. A link mechanism for the opening/closing operation system of the shutter 18 is disposed below the inner flow plate 11b at a position outside the side plate on the side of the threshing device 1 of No. 7, and the link mechanism is provided integrally with the grain tank 7. By interlocking with the lever 25 attached to the grain tank 7, the following effects are achieved.

That is, the receiving gutter 13 and the shutter 18 are arranged below the outer flow plate 11a, and the shutter 18 is inserted and removed below the inner flow plate 11b, thereby forming a V-shaped bottom plate of the grain tank 7. The link mechanism that makes it possible to effectively utilize the space below both flow plates 11a and 11b and to remotely control the shutter 18 is located outside the side plate of the grain tank 7 on the threshing device 1 side when viewed from the front and back direction of the machine. It is now possible to install the shutter under the inner flow plate 11b, and the outflow port and the receiving gutter can be arranged below the conventional inner flow plate, and the shutter can be inserted and removed from the same inside side, that is, on the side of the threshing device. As such, there is no need to separate the threshing device and the grain tank in order to arrange the link mechanism, and the grain tank 7 and the threshing device 1 can be brought as close together as possible, making the machine body compact. can.

In addition, since the receiving gutter 13 is attached to the lower part of the outer flow plate 11a and is located toward the outside, when the work is completed or the transfer spiral 14a etc. is clogged, the receiving gutter 13 is removed from the outer side. The bottom can be opened and the grains can be removed very easily and simply.

Moreover, by rotating the grain tank 7 toward the outside of the machine body and widening the grain tank 7 side of the threshing device 1, the grain tank 7 side portion of the threshing device 1 and the grain tank 7 can be opened. While it is possible to easily perform maintenance and inspection work on various mechanisms such as the grain lifting device located between the grain device 1, there is also a lever that remotely controls the shutter 18 when rotating the grain tank 7. 25 and link mechanism and grain tank 7
There is no need to release the connection each time, and these can be easily rotated with these attached.

In addition, even if the link mechanism is installed inside the grain tank 7, since it rotates outward integrally with the grain tank 7, inspection and maintenance of the link mechanism can be carried out extremely easily from outside. can.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the combine, Figure 2 is a view taken along the line A-A in Figure 1, Figure 3 is a front view showing a partial cross section of the discharge thrower, and Figure 4 is a cross section of the lower part of the grain tank. 5 is a cross-sectional view of the main part, FIG. 6 is a partially cutaway perspective view of the main part, and FIG. 7 is a cross-sectional view of the outlet. 7... Grain tank, 12... Outlet, 13...
Receiving gutter, 14... Spiral shaft, 18... Shutter, 2
4...Link.

Claims (1)

[Scope of utility model registration request] A pre-processing device 4 is provided in front of a machine 3 having a traveling device 2, and a threshing device 1 is mounted on one side of the rear thereof, and a grain tank 7 is mounted on the other side, with the grain tank 7 facing outward. In the combine harvester which is pivotably connected to the grain tank 7, the bottom plate 11 of the grain tank 7 is composed of left and right flow plates 11a and 11b connected in a V-shape,
An outlet 12 is bored in the lower part of the outer flow plate 11a,
A receiving gutter 13 with a transfer spiral 4a inside and a bottom plate that can be opened and closed is attached to the lower surface of this outlet 12, and the outlet 12 is inserted into and removed from below the inner flow plate 11b on the opposite side from the flow plate 11a. A shutter 18 that operates to open and close the outlet 12 is attached, and when viewed from the front and back direction of the machine, the grain tank 7
A link mechanism for the opening/closing operation system of the shutter 18 is disposed below the inner flow plate 11b at a position outside the side plate on the side of the threshing device 1, and the link mechanism is provided integrally with the grain tank 7. Grain tank 7
A grain tank in a combine harvester, characterized in that it is interlocked with a lever 25 attached to the grain tank.