JPH0325553Y2 - - Google Patents

Description

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

(b) Prior Art The grain tank of a conventional combine housed a transfer spiral in the valley of a V-shaped bottom plate, and the upper part was covered with a mountain-shaped shutter.

(c) Problems to be solved by the invention In the known grain tank, when the shutter is closed, its tip comes into contact with the bottom plate, and if any grain remains, it gets caught and the shutter is completely closed. Therefore, even if the shutter was closed, the grains flowed out little by little, and it was not possible to stop the grain discharge midway.

(d) Means for solving the problems The present invention aims to improve the above-mentioned drawbacks, and is a combine harvester having a pre-treatment device, a threshing device, and a grain tank with a discharge device. The bottom plate of the grain tank is composed of left and right flow plates connected in a V-shape, an outlet is bored at the bottom of one of the flow plates, and a receiver is provided with a transfer spiral inside the bottom of the outlet. Attach the gutter, and install a shutter in the same direction as one of the flow plates to the outlet so that it will close by entering the lower surface of the upper mouth rim diagonally upward from the lower edge of the outlet and open when pulled diagonally downward in the opposite direction. It is characterized by the fact that

(E) Function: The receiving trough forming the grain transfer space and the transfer spiral installed therein all protrude downward from the lower part of one of the flow plates, and the shutter advances and retreats in the direction along the one flow plate, When closing the outlet, the tip of the shutter enters the upper rim of the outlet.

(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 has an outlet 12 protruding along the lower end of the outer flow plate 11a, and an upper opening edge of the outlet 12. 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 bottom plate 13c having a doglegged cross section is removably screwed onto the lower end portions of the lower side plate 13b and the upper side plate 13a to form a receiving gutter 13, and a transfer spiral 14a built into the receiving gutter 13 is provided. 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, and the lower part of the bottom plate 13c. Side 13c' is horizontal,
Upper side 1 opposite to the downward rotation side of the transfer spiral 14a
3c'' and the lower side 13c' is the angle θ ₁ of the transfer spiral 14
The angle between the lower side plate 13b and the lower side 13c' facing the upward rotation side of a is formed to be larger than θ ₂ , and the transfer spiral 1
The outer upper part of 4a is formed into a wide space S surrounded by an upper side plate 13a and a portion where the flow plate 11a protrudes by an amount l to form an upper lip 12a.

The shutter 18 extends parallel to the outer flow plate 11a from between the plate body 19 extending from the flow plate 11b on the side of the threshing device 1 and the lower side plate 13b, and enters into the protruding lower surface of the flow plate 11a. , the lower surfaces of both ends and the middle part are supported and guided by a plurality of guide plates 20..., and guide rails 21, 21 are provided at the upper part of both ends, and are fixed to the lower end of the shutter 18 and have elongated holes 22.
a, 22a, both ends of the rod 22 are connected to the support shaft 23.
It loosely fits into the long holes of the arms 24, 24 hanging down from the
The middle part of one arm 24 is interlocked with a lever 25 supported on the front wall by a rod 26, and the front plate and the rear plate near the threshing device 1 are folded into two links 2.
It is connected to the machine stand 3 at 7 and 27.

In addition, a grain take-out port 29 having a shutter plate 28 and a take-out tube 30 hanging downward from the grain take-out port 29 are provided above the outlet 12 of the outer flow plate 11a to remove the grains in the threshing grain tank 7. The discharge pipe 31 of the discharge thrower 15 is divided into two parts and hinged 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 to tilt it laterally is attached to the part,
The inclination angle or storage position of the discharge thrower 15 can be selected by fitting and press-contacting a stopper 34, which is moved up and down by a lever 33 attached thereto, into one of a number of recesses provided on the upper surface of the guide plate 35.

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. 13 and is sent out by the transfer spiral 14a to the forward discharge thrower 15, which lifts the fed grains and loads them onto a loading platform.

When the grains in the grain tank 7 have been discharged, or when the loading platform is full and grain discharge is interrupted, tilt the lever 25 inward and the shutter 18 will move diagonally upward. into the outlet 12
Close.

When closing the shutter, if the grain tank 7 is empty, there will be no problem with the closing operation.
When discharging is interrupted, in the conventional shutter, grains are caught between the tip of the shutter and the bottom plate, and the state is not completely closed, but in this example, the transfer spiral 14
There is a space S in the upper part of the outer side of a, and the angle of repose of the grains flowing into the receiving trough 13 is regulated by the upper lip 12a extending downward, and the part where the shutter 18 finally enters is in the space S. Since the grain is curved, the shutter 18 smoothly enters the predetermined position without biting the grain.

Further, since the receiving trough 13 is attached to the outer flow plate 11a, the discharge thrower 15 can be installed closer to the outside than in the conventional case where the discharge thrower 15 is provided in the valley of the bottom plate 11.

(g) Effects of the invention As described above, the present invention provides a combine harvester having a pretreatment device 4, a threshing device 1, and a grain tank 7 with a discharge device, in which the bottom plate 11 of the grain tank 7 is
A receiving trough 13 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 one of the flow plates, and a transfer spiral 14a is installed in the lower surface of the outlet 12. Attach the shutter 18 to the outlet 12 in the same direction as the one flow plate, and enter the shutter 18 from the lower edge of the outlet 12 into the lower surface of the upper mouth rim diagonally above, close it, and open it by pulling it diagonally downward in the opposite direction. Since the grain tank 7 is attached to the bottom plate 11 of the grain tank 7, it becomes possible to store grains in the entire L-shaped valley bottom formed by the bottom plate 11 of the grain tank 7, thereby increasing the grain storage capacity.

Moreover, when the shutter 18 of the grain tank 7 is closed, the upper end of the shutter is connected to the outer flow plate 11a.
The grain enters the space formed by restricting the inflow from the lower surface of the upper lip 12a diagonally upward by the angle of repose of the grain, and the grain is discharged and lifted. Even if the loading platform of the transport vehicle becomes full or the discharge is interrupted due to other circumstances, the tip of the shutter 18 will not bite the grains, and the outlet 12 will be closed very easily and completely. Even if the shutter 18 is closed during grain ejection, the grains will not be damaged, ejected outside the machine, or scratched.

[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
5...Lever.

Claims (1)

[Scope of utility model registration request] In a combine having a pretreatment device 4, a threshing device 1, and a grain tank 7 with a discharge device, the bottom plate 11 of the grain tank 7 is configured with left and right flow plates 11a and 11b connected in a V shape, An outflow port 12 is bored in the lower part of one of the flow plates, a receiving trough 13 with a transfer spiral 14a is attached to the bottom surface of this outflow port 12, and the outflow port 12 is connected to the flow plate in the same direction as the one flow plate. This grain tank shutter in a combine harvester is characterized in that the shutter 18 is installed so as to enter the lower surface of the upper mouth edge diagonally upward from the lower edge side of the outlet 12, close, and open when pulled out diagonally downward in the opposite direction.