JP2000050725A - Discharging port-covering structure in grain discharging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharging port-covering structure in a grain discharging device which excellently performs discharge of grain without inducing clogging of the grain while inhibiting leakage of grain or dust, etc., to sideward. SOLUTION: This discharging port-covering structure covers around of a discharging port 80 of a grain discharging device 2 constructed to discharge grain stored in a grain tank 7, etc., from the discharging port 80 formed at a tip part of an auger cylinder 8 through the cylinder 8 by a plate-like covering body 9 having flexibility, and a superposing part 9a longitudinally superposing with the covering body 9 and expandable to sideward is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a discharge port cover usable for a discharge device such as a combine or a harvester.

[0002]

2. Description of the Related Art Conventionally, a combine with a grain tank has a grain discharging device having an auger cylinder which can be switched between a storage position and a grain discharging operation position. A flexible discharge cover made of a transparent plastic material is suspended and surrounded by a discharge port formed at the tip of the auger tube to guide and guide the discharge of the grains, and to be guided into the discharge port. We try to prevent intrusion of equipment and fingers.

[0003]

However, since the discharge port cover according to the above-described conventional structure is formed in a cylindrical shape whose outer periphery is closed, leakage of grains and dust to the side during the grain discharge operation is performed. However, if the opening end of the outlet cover is filled with the discharged grains due to the discharge and filling of the grains, there is a drawback with troubles such as grain clogging at the outlet. In addition, there is a problem that the conventional outlet cover cannot sufficiently cover the outlet.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art. In the grain discharge device 2 configured to discharge from the discharge port 80 formed at the tip portion, the periphery of the discharge port 80 is covered with a flexible plate-shaped cover body 9,
A overlapping portion 9a is formed on the cover body 9 so as to be overlapped in the vertical direction and expandable to the side.

The cover body 9 is divided into a U-shaped lower cover 90 and an upper cover 91 in a U-shape in plan view on the lower side and the upper side in the grain discharging direction, and the lower side cover 90 is divided into the upper side cover 91. To form the overlapping portion 9a. Then, the cover body 9 is formed in a single plate shape, and both ends thereof are overlapped to form the overlapping portion 9a.

Further, the cover body 9 is joined at both ends to form a full-peripheral cover 95 surrounding substantially the entire periphery of the discharge port 80, and a butting portion 96 of the full-peripheral cover 95 is covered from the outside to form a double contact portion 9a. An outer cover 97 is provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a discharge port cover structure of a grain discharging device according to the present invention will be described below with reference to the drawings. 1 is a combine provided with a discharge port cover structure 3 of a grain discharge device 2 according to the present invention, and the combine 1 is provided with a cutting unit 4 at a front portion of a machine base 1b having a traveling device 1a, A threshing unit 5 is mounted in the rear part, and a control unit 6 and a grain tank (Glen tank) 7 equipped with the grain discharging device 2 at the rear side are provided beside the threshing unit 5. The threshed husks are threshed in the threshing unit 5, the threshed grains are once stored in the grain tank 7, and the trucks are waiting outside the machine via the grain discharge device 2 when they are full. (Not shown) and the like.

The grain discharging device 2 is maintained in the retracted position as shown in FIG.
An auger cylinder (grain discharge cylinder) 8 equipped with an auger spiral 8b (FIG. 3), which is provided to be capable of vertical tilting and turning rotation operations during a grain discharging operation, and operates in a discharging posture. The outlet 80 formed at the end of the auger cylinder 8 is provided with the outlet cover structure 3 so as to prevent clogging of grains and the like, and to prevent intrusion of objects into the outlet 80 or hand. Intrusions can be properly prevented.

The outlet 80 will be described below with reference to FIGS.
This will be described with reference to FIG. First, the outlet cover structure 3 according to the first embodiment of the present invention will be described with reference to FIG. The outlet cover structure 3 includes a flexible plate-like cover body 9 around an outlet 80 formed by a downwardly extending mouthpiece 81 having a rectangular cross section and extending downward from the tip of the auger cylinder 8. Covering.

The cover body 9 is formed by a lower cover 90 and an upper cover 91 which are formed in a U-shape in plan view on the lower side and the upper side in the grain discharging direction of the auger cylinder 8 in a U-shape in plan view. The side pieces 90a, 90a on the cover 90 side are positioned inside the side pieces 91a, 91a on the upper cover 91 side to form a vertically overlapping overlapping portion 9a. And, as shown in FIG.
When the grain is discharged onto the bed in the discharge posture of the auger cylinder 8 and becomes full when the auger cylinder 8 is discharged, even if the two covers 90 and 91 are expanded forward and rearward by the filling pressure of the grain, Layered so that the kernels do not leak from the sides. The lower cover 90 and the upper cover 91 are attached to the lower end of the barrel 81 with an attachment member 92.

The outlet cover structure 3 configured as described above
When the auger helix 8b rotates in the discharge position of the auger cylinder 8 to discharge grains from the discharge port 80, the lower cover 90 and the upper cover 91 have a sufficient overlapping width by their own elasticity. Since the grains are in contact with each other, the grains can be discharged well downward without blowing or leaking grains, dust, or the like from the gaps where the contact portions 9a overlap each other. Can be done.

As shown in FIG. 3, when the discharge is full, the lower cover 90 and the upper cover 91 have their lower portions in the direction of discharging and transferring the grains by the auger cylinder 8 (front-rear direction) due to its own flexibility. Spread each other. Therefore, the grains can be smoothly expanded in the front-rear direction without clogging the grain at the discharge port 80 portion, and at this time, the overlapping portion 9 a is also the weight of the two covers 90 and 91. Since a large gap is not generated in the portion, it is possible to discharge the grains well, and it is possible to appropriately prevent the intrusion of fingers and the like from the cover body 9 formed by the two covers 90 and 91. . Therefore, there is an advantage that the grain can be discharged well without clogging even if the cover 9 is formed long.

The two covers 90 and 91 are brought into contact with each other as shown in FIG. 2B, and the outlet 80 as shown in FIG.
When the direction of discharge of the grains discharged from the container is a curved flow as shown by arrow A, the side piece 90 on the side facing the curved flow of the grains is used.
When the overlapping portion 9a is formed by overlapping the side piece 91a with a outside, it is possible to accurately prevent the entry of grains or dust between the side pieces 90a and 91a.

Next, a second embodiment of the outlet cover structure 3 will be described with reference to FIG. The cover body 9 is formed in a single plate shape having a length around which the mouthpiece 81 is wound one or more rounds. It is located on the lower side (front side) in the discharge direction, and the curved flow (discharge direction) A of the kernel as described above.
, So that the ends of the cover body 9 do not face each other.

According to this structure, the outlet cover structure 3 can be made simple with one cover member 9, and the grains can be discharged well as in the first embodiment. . Next, the outlet cover structure 3 of the third embodiment shown in FIG. 6 will be described. The outlet cover structure 3 includes a full-peripheral cover 95 that substantially surrounds the cylinder 81 by one circumference,
An abutting portion 96 formed at both ends in the vertical direction is constituted by an outer cover 97 which covers the outside with a sufficient overlapping portion 9a from the outside, and the overlapping portion 9a formed by the above both is the second embodiment. It is located on the front side like the one of.

According to this structure, when the discharge is full, the abutting portion 96 can be easily expanded by the grain filling pressure, and the gap formed by the outer cover 97 can be formed.
In this case, there is an advantage that the grains can be satisfactorily discharged while appropriately covering without preventing the discharge of the grains. In addition,
In this case, when the curved flow A in the grain discharge direction is in the direction shown in FIG. 6C, the end of the outer cover 97 in the lower direction of the curved flow A is inserted inward from the abutting portion 96. By forming the overlapping portion 9a in this way, it is possible to appropriately prevent the entry of grains or the like between the abutting portion 96 and the outer cover 97.

[0017]

As is apparent from the above description, according to the outlet cover structure of the grain discharging device according to the present invention, when the grain is discharged from the outlet 80 of the auger cylinder 8, the overlapping portion 9 is formed.
A can be satisfactorily discharged without leaking or blowing out grains, dust, and the like from a.

Also, when the discharge is full, the cover body 9 can be appropriately expanded by utilizing the flexibility of the cover member 9 by the filling pressure of the grains from the contact portion 9a, so that the discharge port 80 is clogged. It is possible to satisfactorily perform the work of discharging the grains without causing the grain to be discharged.

[Brief description of the drawings]

FIG. 1 is a perspective view of a combine.

FIG. 2A is a perspective view of an outlet cover structure 3, and FIG.
Is a perspective view of the cover body 9.

FIG. 3 is a side sectional view of an outlet cover structure 3;

FIG. 4 is a perspective view showing another embodiment of the cover body 9;

FIG. 5 is a perspective view showing a second embodiment of the outlet cover structure 3.

6A is a perspective view showing a third embodiment of the outlet cover structure 3, FIG. 6B is a perspective view showing a cover body 9 of FIG. 6A, and FIG. 6C is a perspective view showing another embodiment. FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Combine 2 Grain discharge device 3 Discharge port cover structure 7 Kernel tank 8 Auger cylinder 9 Cover body 9a Overlapping part 80 Discharge port 81 Portion 90 Lower side cover 91 Upper side cover 95 Full circumference cover 96 Butt part 97 Outer cover

Claims (4)

[Claims] 1. A grain discharging device 2 configured to discharge grains contained in a grain tank 7 or the like from a discharge port 80 formed at an end portion thereof through an auger cylinder 8.
The periphery of the discharge port 80 is covered with a flexible plate-shaped cover body 9, and the cover body 9 is formed with a contact portion 9 a which overlaps in the vertical direction and can be opened to the side. The outlet cover structure of the grain discharging device. 2. The cover body 9 is divided into a U-shaped lower cover 90 and an upper cover 91 in a U-shape in plan view on the lower side and the upper side in the grain discharging direction, and the lower side cover 9 is formed.
2. The discharge port cover structure of a grain discharge device according to claim 1, wherein 0 is provided inside the upper cover 91 to form the overlapping portion 9a. 3. The outlet cover structure for a grain discharging device according to claim 1, wherein the cover body 9 is formed in a single plate shape, and both ends thereof are overlapped to form a contact portion 9a. 4. An outlet 80 is formed by abutting the cover 9 at both ends.
And a full-circle cover 95 surrounding substantially the entire circumference of the
The outlet cover structure of the grain discharging device according to claim 1, comprising an outer cover 97 that covers the butting portion 96 from outside and forms a contact portion 9a from the outside.