JPS6343886Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain culm conveying belt device installed in a grain culm harvesting machine such as a combiner or a binder.

In general, grain culm harvesting machines such as combine harvesters and binders are equipped with a grain culm conveyance device for pinching and conveying the grain culms, but conventional grain culm conveyance devices are equipped with a so-called conveyance chain made of metal formed into an endless belt shape. Because of this, it was not possible to change the conveying posture of the grain culms, so each time the conveying posture changed, the conveying chain was suspended and the grain stems were transferred from the conveying chain at the start end to the conveying chain at the end. Because grains were conveyed by feeding them, problems such as grain culm clogging or spillage were likely to occur at the transfer section, and power transmission was required because each conveyance chain had to be driven by its own drive sprocket. The disadvantage was that the mechanism was complicated. Therefore, the core metal running along the longitudinal direction of the conveying device is covered with an elastic material such as rubber to form a flexible conveying belt as a whole, and an endless conveying belt with protrusions for conveying grain culms protruding from both side edges. It is composed of a belt, and the conveyance posture can be changed by the conveyor belt,
It has been proposed to eliminate the transfer section, but if this device were to be driven by flat pulleys, the pulleys would slip and the grain culms would be conveyed in a pinched manner, resulting in insufficient conveyance. However, if you try to drive this with a sprocket, a new drawback arises: since the entire drive sprocket is made of a rubber-like elastic material, the meshing part of the drive sprocket will wear out significantly, making it impossible to withstand long-term use.

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned actual situation, and the grain culm conveying device is formed of a flexible conveying belt that can change the conveying posture of the grain culms to transfer them. To provide a grain culm conveying belt device in a grain culm harvester, which can effectively prevent wear of the meshing part of the drive sprocket and withstand long-term use, although the part can be eliminated. It is.

The structure of the present invention will be explained based on an embodiment shown in the drawings. Reference numeral 1 denotes an endless conveyor belt, and the metal cores forming the core portions of both sides of the conveyor belt 1 are A plurality of core materials 2 formed of elastic members
Core materials 3, which are different from the core material 2 described above, are disposed in a bridge-like manner in the width direction of the conveyor belt 1 at predetermined intervals. That is, the link portions 3a formed at both ends of the core material 3 are loosely fitted into the core material 2, and furthermore, a flange 3b is provided protruding near the link portion 3a of the core material 3. The entire core material 2 including the core materials 3 on both sides is integrally covered with an elastic member 4 made of rubber, synthetic resin, etc., and the conveyor belt 1
It consists of A conveyance protrusion 5 is provided at the link portion 3a of the conveyance belt 1 so as to protrude more than other parts. Here, there are various methods for covering the elastic member 4, and examples thereof include a molding method using a mold.

Further, in this embodiment, a freely rotatable cylindrical body 6 made of a metal member is inserted through the center of the core member 3 located between both flanges 3b, and constitutes the meshing part 8 of the sprocket 7. are doing. Furthermore, the meshing part 8
Grain culm clamping rails 9 are provided above the grain culms, and the grain culms are conveyed together with the conveyor belt 1 in a clamping manner.

Fig. 2 shows the suspended state of the conveyor belt 1 when the present invention is applied to a combine harvester (not shown). A conveyor belt 1 is suspended over both routes leading to route B.

Next, the operation of the present invention constructed as described above will be explained. The grain culm harvested in the pre-processing section is transversely conveyed by the conveyor belt 1 and lifted up and conveyed through the lifting conveyance path A, and then subsequently conveyed through the threshing conveyance path B to undergo threshing processing. become. This is because the conveyor belt 1 has both side edges formed of elastic members 4 covered with a core material 2, and unlike conventional conveyor chains, the conveyor belt 1 is flexible and cannot be twisted in the longitudinal direction. This is because it can be suspended in this state. Therefore, as shown in Fig. 2, the grain culm can change its conveyance posture from an upright posture to a downturned posture during the lifting conveyance path, and in this state, it can be transferred to the threshing conveyance path B.
Since the transfer unit can be immediately transferred, the transfer section is unnecessary and transfer troubles do not occur.

Also, during this transportation, the sprocket 7 is attached to the core material 3.
In order to mesh with the central metallic cylindrical body 6, the meshing part 8
In addition, in this embodiment, since the cylindrical body 6 freely rotates, the sprocket 7 can be meshed with ease and can be driven smoothly.

On the other hand, since the grain culms are held between the conveyance protrusions 5 on the front and rear in the conveyance direction, the contact portion of the conveyance belt 1 becomes the elastic member 4 covering the core material 2, and damage to the grain culms can be eliminated. Moreover, since the clamping rail 9 faces the central cylindrical body 6, there is no wear caused by the clamping rail 9 on the conveyor belt 1, and the grain stalk clamps are clamped between metal members, so that the conveyor belt 1 When the grain culm is pulled out by the handling depth adjusting section, threshing section, etc. provided in the long conveyance path, the grain culm can be held with a firm clamping force without being unnecessarily pulled out.

In the above embodiment, the engaging portion 8 of the sprocket 7 is formed of the freely rotatable metal cylindrical body 6, but the invention is not limited to this, and as shown in FIG.
A large diameter portion 6a may be provided in the center of the core material 3 and this may be configured as the meshing portion 8. In short, as long as the meshing portion 8 of the conveyor belt 1 is formed of a metallic member. good. .

In summary, the present invention provides a grain culm harvester equipped with a conveyor belt for pinching and conveying grain culms together with a clamping rail, in which conveyance protrusions are formed on both sides of the conveyor belt at a predetermined interval. In addition to being made of a flexible rubber-like elastic member, the intermediate portion of the conveyor belt facing the clamping rail is constructed with a metal sprocket meshing portion that connects both side edges in a bridging manner, allowing for flexible conveyance. The belt can be twisted in the conveying direction so that the conveying posture of the grain culm can be changed, and even if the conveying posture changes, it can carry out clamping conveyance without a connecting part. In addition to being able to eliminate feeding troubles, the intermediate sprocket meshing part is formed of a metal member to effectively prevent wear of the meshing part and to be able to withstand long-term use. Moreover, since the metal engaging portions are opposed to the clamping rails for clamping and conveying, even if the grain culms are held in contact with the rubber elastic member between the front and rear conveying protrusions without damage, The grain culm is clamped between the metal members of the clamping rail and the engaging part, and therefore, a firm clamping force is maintained so that it will not be pulled out even when the grain culm is pulled out. This enables smooth clamping and conveyance of grain culms.

[Brief explanation of the drawing]

The drawing shows an embodiment of the grain culm conveying belt device in the grain culm harvester according to the present invention,
Fig. 1 is a partially cutaway plan view and longitudinal cross-sectional view of the conveyor belt, Figs. 2 A and B are plan views and side views illustrating the effect when applied to a combine harvester, and Fig. 3 A, B is an explanatory diagram of the main parts,
FIG. 4 is a plan view and a longitudinal sectional view of a conveyor belt showing another embodiment. In the figure, 1 is a conveyor belt, 4 is an elastic member, 5 is a conveyor protrusion, 8 is a meshing part, and 9 is a clamping rail.

Claims (1)

[Scope of utility model registration request] In a grain culm harvester equipped with a conveyor belt for pinching and conveying grain culms together with a clamping rail, a flexible rubber elastic member having conveyance protrusions projecting from both side edges of the conveyor belt at a predetermined interval. A grain culm conveying belt device in a grain culm harvesting machine, characterized in that the intermediate portion of the conveying belt facing the clamping rail is constituted by a metal sprocket engagement portion connecting both side edges in a bridging manner. .