JPH0430173Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a screw conveyor for transporting granular materials, particularly a screw conveyor for frying grain in a grain lifting cylinder.

(Prior Art) In conventional screw conveyors for transporting granular materials, especially screw conveyors for frying grains in grain frying tubes, a disk is fixed to the starting end of the screw conveyor, which is approximately 0.5 mm away from the screw conveyor outer cylinder. They are placed with a certain amount of space between them.

(Problem to be solved by the invention) In the conventional system, granules are deposited near the outer circumferential edge of the disk, which serves as a member for receiving granules stuck to the starting end of the screw conveyor, and the inner circumferential surface of the outer cylinder. is likely to accumulate, and especially when the outer cylinder is provided at an angle, accumulation is very likely to occur on the inclined side. and,
Since the disc that receives the accumulated particulate matter is rotating, particulate matter is likely to get caught in the gap between the outer cylinder and the disc. Therefore, the gap between the disc and the outer cylinder is easily worn out, and particles such as grains are scattered outside the machine through the gap, thereby causing loss outside the machine.

(Means for solving the problem) Therefore, the technical problem of the present invention is to provide a screw conveyor for transporting granular materials in which the disk and the corresponding outer cylinder do not wear out. The technical means of the present invention to solve this technical problem is that a disk is fixed to the starting end of a screw conveyor that conveys granular materials upward, and the size of the disk is approximately the same as the outer diameter of the screw conveyor. In addition to having the same structure, an annular receiving plate is fixed to the inner surface of the screw conveyor outer cylinder with a certain gap from this disc, and the annular receiving plate is arranged on the same plane on the outer periphery of the disc, and the granular material is A bottom plate portion is formed to serve as a receiving member.

(Example) The following description will be made based on the embodiments shown in the drawings.

The one shown in FIGS. 3 and 4 is a general-purpose combine harvester in which a threshing section B is mounted on a crawler 1, and a preprocessing section A is located in front of the crawler 1. The pre-processing section A consists of a scraping reel 2, a reaping device 3, a screw auger 4, and a chain conveyor 5 of a feeder house 9. The grains are sent to B and threshed, and the threshed grains are transferred to the screw conveyor 7 in the first gutter 6.
The paddy grains are conveyed to the grain lifting cylinder 8 and fried to a paddy tank by the screw conveyor 11 of the grain lifting cylinder 8.

The present invention relates to an improvement of a grain lifting cylinder in a combine as described above, particularly a screw conveyor for transferring granular materials having an inclined outer cylinder.

As shown in FIG. 4, there is a disc 12 at the starting end of the screw conveyor 11 toward the bearing 13 to prevent foreign matter from entering, but there is a gap of approximately 0.5 mm between the disc 12 and the outer cylinder 14. There is a gap, and as the screw conveyor rotates, the paddy that accumulates in this gap is likely to be caught in the gap, and as a result, the disk and outer cylinder wear out, and the gap gradually becomes larger, and the paddy is removed from this gap. It is pushed out and causes loss outside the machine. Particularly when the outer cylinder 14 is inclined, grains accumulated on the lower side are likely to get caught in the gap.

As shown in FIG. 1, the outer diameter of the disk 12 is configured to be almost the same as the outer diameter of the screw conveyor 11, and a ring-shaped receiver serving as a receiving member for the granular material is placed on the inner surface of the outer cylinder 14 with a certain gap between the disk 12 and the screw conveyor 11. By arranging the plate 15 on the same plane as the disk around the outer periphery of the disk, even if paddy accumulates on the annular receiving plate 15, it will only stay there and will not be actively bitten by the screw conveyor. There is no possibility that it will be pushed toward the gap between the receiving plate 15 and the disc 12. In particular, when the above-described annular receiving plate 15 is provided on a case where the outer cylinder is inclined as shown in Fig. 2, the grains will accumulate at the bottom of the outer cylinder.
This accumulates on the annular receiving plate 15, and since there is no gap between the disk 12 and the outer cylinder 15, no grains are caught. Furthermore, since the gap between the disk 12 and the receiving plate 15 is not at the bottom of the grain pool, there is no chance of grains getting caught.

In the illustrated explanation, the grain barrel 8 was explained, but
The same applies to the second reduction cylinder 10.

(Effects of the invention) This technical means has the following effects.

In other words, in the conventional case, when the outer cylinder is tilted, the rice that accumulates in the gap between the disc and the outer cylinder is likely to be caught in the gap as the screw conveyor rotates, so that the disc and the As the outer cylinder wears away, the gap gradually becomes larger, and the paddy is pushed out through this gap, causing loss outside the machine.

However, the outer diameter of the disc in the present invention is almost the same as that of the screw conveyor, and a ring-shaped receiving plate, which serves as a receiving member for the granular material, is fixed to the outer cylinder of the screw conveyor with a certain gap around the outer periphery. In addition, since the annular receiving plate is arranged on the same plane as the disc,
Even if paddy accumulates on the annular receiving plate, only granules remain in that area. In other words, since the part where particulate matter is likely to accumulate is received by the annular receiving plate fixed to the inner circumferential surface of the outer cylinder, no particulate material is caught in the part. Therefore, the structure of the present invention is characterized in that it is useful for preventing wear.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the screw conveyor, Figure 2
3 is a front view of a general-purpose combine harvester, and FIG. 4 is a sectional view of a conventional grain lifting cylinder. 11... Screw conveyor, 12... Disc,
14... Outer cylinder, 15... Annular receiving plate.

Claims (1)

[Scope of utility model registration request] In the case where a disk is fixed to the starting end of a screw conveyor that conveys granular materials upward, the size of the disk is configured to be approximately the same as the outer diameter of the screw conveyor, and a certain gap is maintained between the disk and the screw conveyor. A granular material obtained by fixing an annular receiving plate to the inner surface of an outer cylinder of a screw conveyor, and arranging the annular receiving plate in the same plane on the outer periphery of the disc to form a bottom plate portion that serves as a receiving member for the granular material. Screw conveyor for transportation.