JPH0451563Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a gutter in a grain hopper of a grain storage section provided in a combine harvester, a harvester, etc.

[Problems to be solved by the prior art and the invention]

In general, this type of grain hopper is produced in 18678.
As shown in the publication, a guide plate is provided between a grain hopper that temporarily stores grains and a guide tube that guides the grains to a storage bag, and a guide plate is provided between the guide plate and the grain hopper. An opening/closing plate is slidably interposed so that the outlet in the grain hopper can be freely opened and closed.

However, in this case, the upper surface of the guide plate was substantially smooth, and the entire lower surface of the opening/closing plate was in contact with the upper surface of the guide plate, that is, the sliding contact was made with a large contact area, so the sliding resistance of the opening/closing plate was large. Therefore, if a force is applied to press the opening/closing plate toward the guide plate due to the weight of grains filled in the grain hopper, the sliding of the opening/closing plate becomes heavy, making it difficult to open and close the outlet smoothly.

Moreover, since the above-mentioned conventional type originally has a large sliding resistance of the opening/closing plate, there may be assembly errors, backlash during opening/closing operation, or the opening/closing plate may be slightly deformed, causing the opening/closing plate to slip into the gutter of the grain hopper directly above it. If it comes into contact with the lower end, it will immediately become difficult to open and close.In order to eliminate this drawback, if the gap between the opening and closing plate and the lower end of the upper grain hopper gutter is increased, this gap will be filled with grains, making it difficult for the opening and closing plate to slide. This has caused problems such as the grains warping and becoming heavy, or the grains spilling out from the gaps.

In addition, when attaching the lower gutter to the lower part of the guide plate, if it is screwed in at a position outside the opening/closing plate, the attachment part will protrude to the outside of the guide plate on both sides, making it difficult to attach and detach the grain storage bag. −
In the device shown in Publication No. 18678, the lower gutter is screwed to the guide plate at a position directly below the opening/closing plate, but the head of the screw rod is attached to the guide plate so that the screw rod does not get in the way when the opening/closing plate operates. A hole is provided in which the part is inserted, making the processing and construction complicated.

[Means to solve the problem]

In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a gutter in a grain hopper that can eliminate these drawbacks. An opening/closing plate is slidably interposed between the guide plate, which is located below the grain outlet and has a smooth plate surface and has an opening/closing window corresponding to the grain outlet. The gutter of the grain hopper is configured to open and close the flow outlet, and has a lower gutter screwed to the lower part of the guide plate, and the peripheral edge of the opening window of the guide plate is formed so that the plate surface of the guide plate at that part is smooth. Sliding guide of the opening/closing plate is formed by stamping upward so that the plate surface is maintained and floats higher than the plate surface of other parts, and the floating plate surface of the smooth guide plate formed by the stamping is formed. It is characterized in that the head of the screw rod that screws the lower gutter is inserted into the space formed between the opening/closing plate and the non-sliding guide surface of the guide plate. It is something.

With this configuration, the present invention enables smooth opening/closing operation with little sliding resistance of the opening/closing plate against the guide plate, and has a compact gutter configuration that is simple in processing and structure. Something can happen.

〔Example〕

Next, one embodiment of the present invention will be described based on the drawings. In the drawing, 1 is a traveling machine of a combine harvester, and the traveling machine 1 includes a pre-processing section 2 equipped with a cutting blade, a threshing section 3 that threshes cut culms, and a post-processing section such as tying together the removed culms. It is composed of a post-processing section 4 that performs the processing, a drive section 5 consisting of an engine, etc., a crawler-type traveling body 6, a grain storage section 7 that stores the threshed and sorted grains in a storage bag, a driver's seat 8, etc. Everything that has been done is the same as before.

Reference numeral 9 denotes a grain hopper constituting the grain storage section 7, and the grain hopper 9 has two sets of grain outlet ports 9a provided at its bottom. And threshing section 3
The grains that have been threshed and sorted are lifted up to the top of the grain hopper 9 by the grain lifting cylinder 10,
Next, the discharge vane 11 provided at the upper end of the grain lifting cylinder 10
By the rotation of the grains, the grains are discharged toward the one side of the grain outlet 9a that is far from the grain lifting cylinder 10. Reference numeral 12 denotes a case body for the discharge vane 11, and the case body 12 is provided in the grain hopper 9. On the bottom surface of the discharge port of the case body 12, an adjustment plate 13 is provided with a support shaft 13a as a fulcrum. It is supported on a shaft so that it can swing up and down. The adjustment plate 13 includes an opening/closing lid 9b provided on the upper surface of the grain hopper 9.
By opening the grain, the grain discharge angle θ can be freely adjusted by fixing it in an arbitrary position tilted at an appropriate angle with respect to the bottom surface of the case body 12. In the case of grains that do not fly far, such as grains that have been dried, the grain ejection angle θ is set to be large so that the grains fall at the same approximately constant falling position as normal grains. It is configured so that it can be done. Note that 14 is a ratchet nut for fixing the adjustment plate 13.

15 is a grain outlet 9 in the grain hopper 9;
It is a guide plate having a smooth plate surface that is screwed and fixed to the lower side of the guide plate 15, and the lower surface side of the guide plate 15 is provided with a base 16, a cylindrical body 17 of a flexible member, and a stopper 18. The lower gutter 22 is integrally screwed and fixed, and forms the gutter of the grain hopper 9.
is a storage bag 1 whose lower end side is suspended by a hanger 21.
9 to guide the grains flowing down the gutter. The guide plate 15 is provided with an opening window 15a corresponding to the grain outlet 9a. The grain outlet 9a, that is, the gutter can be opened and closed by operating an opening/closing plate 20 that is horizontally slidably interposed between the grain outlet 9a and the guide plate 15.

On the other hand, the peripheral edge of the opening window 15a of the guide plate 15 is punched upward while maintaining the smooth plate surface so that the smooth plate surface of the guide plate 15 at that part floats higher than the plate surface at other parts. The smooth floating plate surface 15b is configured to serve as a sliding guide surface for the opening/closing plate 20. Also, the opening/closing plate 20
At least the opening/closing plate 2 is provided between the and the grain flow outlet 9a.
A small gap is provided so that the grains do not touch each other, and are set to prevent grains flowing down from clogging or leaking. Further, 15c is a screw rod for fixing the lower gutter 22 to the guide 15, and as shown in FIG. It is inserted into the space between the guide surface (non-embossed surface) and is configured so as not to hinder the operation of the opening/closing plate 20.

In the embodiment of the present invention configured as described above, the grains threshed and sorted in the threshing section 3 are supplied to the grain hopper 9 via the grain lifter 10, and from there to the hanger via the gutter. The storage bag 19 suspended from the storage bag 21 is stored in the storage bag 19 .
When the storage bag 19 is full, the opening/closing plate 20 is slid to close the gutter, and the grains can be stored from the adjacent gutter into another storage bag 19 or replaced with a new storage bag 19. The storage work will continue.

In this way, the grains can be stored in the storage bag 19, but especially in the present invention,
The opening/closing plate 20 has a floating plate surface 15 that is formed by stamping on the guide plate 15 and maintains a smooth plate surface.
Opening and closing operations will be performed using b as a sliding guide surface. Therefore, the surface contact state of the opening/closing plate 20 with the guide plate 15 is maintained, and although the opening/closing plate 20 reliably slides along the sliding guide surface without falling down, the contact surfaces of the two do not float. The area is small, consisting only of the plate surface 15a. Therefore, the sliding resistance that the opening/closing plate 20 receives from the guide plate 15 is extremely small on the smooth plate surface, and as in this embodiment, the gap between the grain flow outlet 9a and the opening/closing plate 20 is small. Even if the opening/closing plate 20 is a small type, the opening/closing operation of the opening/closing plate 20 can be performed easily.

As described above, in the present invention, the peripheral plate surface of the opening window 15a of the guide plate 15 is simply hammered out into a floating shape and lifted while maintaining the smooth plate surface of the guide plate 15. Due to the extremely simple structure, the sliding resistance of the opening/closing plate 20 can be significantly reduced, and therefore, between the upper surface of the opening/closing plate 20 and the lower surface of the grain outlet 9a, the opening/closing plate 20 is Outlet 9
It is sufficient that the gap is such that it does not interfere with the opening/closing operation of the opening/closing plate 20, such as not contacting the opening/closing plate 20, or only lightly contacting the opening/closing plate 20. Therefore, there is no possibility that the grains will get stuck between the opening/closing plate 20 and the grain outlet 9a and the sliding of the opening/closing plate 20 will be obstructed, or the grains will leak out from this gap, and the grains will always be nimble. The opening/closing plate 20 can be opened and closed smoothly.

Furthermore, by screwing and fixing the lower gutter 22 to the guide 15 directly below the opening/closing plate 20, it is possible to prevent the attachment portion from protruding onto both sides of the guide 15 and interfering with the attachment and detachment of the grain storage bag. However, by inserting the head 15d of the screw rod 15c into the space between the opening/closing plate 20 and the non-sliding guide surface (non-punching surface) of the guide plate 15, the screw fixing part can be fixed even with a simple structure. The operation of the opening/closing plate 20 can be made completely unhindered.

Further, in this embodiment, when grains are discharged from the grain lifting cylinder 10 to the grain hopper 9, an adjustment plate 13 is provided on the case body 12 for the discharge vane 11, and the adjustment plate 13 adjusts the discharge angle. By adjusting θ, the falling position of the grain can be set at a substantially constant position without being affected by the situation of the grain such as wet material, so the grain hopper 9 can adjust the grain storage amount. It has the advantage that it can always be utilized to the maximum extent.

[Effect]

In summary, since the present invention is constructed as described above, the opening/closing plate 20 is punched upward onto the periphery of the opening window 15a of the guide plate 15 while maintaining the smooth plate surface of the guide plate 15. The opening/closing operation is performed while sliding only on the smooth floating plate surface 15b. As a result, the opening/closing plate 20 and the guide plate 15 maintain surface contact, and although the opening/closing plate reliably slides along the floating plate surface 15b, the sliding resistance of the opening/closing plate 20 is extremely small. Thus, even if a large weight of grains filled in the grain hopper 9 is applied to the opening/closing plate 20 from above, the opening/closing operation can be performed smoothly.

In addition, the gap between the opening/closing plate 20 and the grain outlet 9a can be set to be so small that the grains do not become clogged or spill out, so that the grains can fit into the gap. There is no possibility of clogging or spillage, and the opening/closing operation of the opening/closing plate 20 can always be performed easily.

Furthermore, by screwing and fixing the lower gutter 22 to the guide 15 directly below the opening/closing plate 20, it is possible to prevent the attachment portion from protruding onto both sides of the guide 15 and interfering with the attachment and detachment of the grain storage bag. However, by inserting the head 15d of the screw rod 15c into the space between the opening/closing plate 20 and the non-sliding guide surface of the guide plate 15, the screw fixed part of the lower gutter 22 can be opened/closed with a simple configuration. This allows the opening and closing operation of the plate 20 to be performed without any hindrance.

[Brief explanation of drawings]

The drawings show an embodiment of the gutter structure in the grain hopper according to the present invention, in which Fig. 1 is an overall perspective view of the combine, Fig. 2 is a perspective view of the grain hopper, and Fig. 3 is a perspective view of the grain hopper. Main part front view with part cut away, No. 4
The figure is a partially exploded perspective view, Figure 5 is a vertical sectional view of the main part, Figure 6 is a partially cutaway sectional view of the grain hopper, Figure 7 is an explanatory diagram of the operation of the grain discharge part, and Figure 8 is the main part of the same. A partial perspective view and FIG. 9 are enlarged views of the same. In the figure, 9 is the grain hopper, 9a is the grain outlet, 1
5 is a guide plate, 15a is an opening window, 15b is a floating plate surface, 15c is a screw rod, 15d is a head of the screw rod 15c, 20 is an opening/closing plate, and 22 is a lower gutter.

Claims (1)

[Scope of utility model registration request] An opening/closing plate is provided between the grain outlet in the grain hopper and a guide plate located below the grain outlet and having a smooth plate surface with an opening window corresponding to the grain outlet. A gutter of a grain hopper is configured to open and close a grain flow port by slidably interposing a grain outlet, and a lower gutter is screwed to the lower part of the guide plate, and the gutter of the grain hopper is configured such that , the plate surface of the guide plate in the region is formed by punching upward so that it floats higher than the plate surface in other regions while maintaining a smooth plate surface,
The raised plate surface of the smooth stamped guide plate serves as a sliding guide surface for the opening/closing plate, and the head of the screw rod that screws the lower gutter is used as a non-sliding surface between the opening/closing plate and the guide plate. A higuchi structure in a grain hopper characterized by being constructed by entering a space formed between a guide surface and a guide surface.