JPS6211391Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a conveying chain structure in a grain culm conveying section of an agricultural machine.

In other words, in the grain culm conveying section of an agricultural working machine that is configured so that the grain culm can be pinched and conveyed by a conveyance chain that slides along a chain rail, the inner plate of the conveyance chain and the chain rail can make smooth contact. This eliminates the problem of the inner plate scratching and abrading the chain rail as in the past, and the outer plate and inner plate rotate smoothly without damaging each other, ensuring grain culm transportation. The present invention provides a simple structure that can be easily manufactured and suitably implemented.

Next, the embodiment shown in the drawings will be described.

A shows the entire conveyance chain, which is a feed chain, and as shown in Figure 1, it is installed horizontally above the front of the threshing machine, along the chain rail B, and wrapped around the drive sprocket and floating sprocket (not shown) on both ends. The conveyor chain A is constructed by erecting a culm C along the lower part thereof.

The conveyance chain A is constructed similarly to the conventional type by connecting both inner plates 1, 1 on both sides and both outer plates 2, 2 on the outer side by a chain pin 4 fitted to a chain roller 6. , 1 is provided with a chevron-shaped protrusion 7 protruding from the center thereof, and holes 8, 8 through which the chain pins 4 are inserted are formed at both end portions, and the outside of the inner plates 1, 1 except for the chevron-shaped protrusion 7 is formed. A bent edge 3 is formed on the periphery as it is formed during punching and is slightly bent outward and has a uniform height.

In addition, chevron-shaped protrusions 10, 10 similar to the chevron-shaped protrusion 7 of the inner plate 1 are provided protruding from the center of the periphery of both outer plates 2, 2, and on the inner surfaces of both ends of both outer plates 2, 2. The circular protrusions 5, 5 which can contact the outer surface of the inner plate 1 and have a height slightly higher than the bent edge 3 are press-drawn, but both protrusions 5, 5 have a small diameter so as not to contact the bent edge 3. Holes 9, 9 through which the chain pin 4 is inserted are formed at the centers of the circles of both protruding surfaces 5, 5, respectively.

Therefore, the inner surfaces of the protruding surfaces 5, 5 of each outer plate 2, 2 are joined to the outer surfaces of both end sides of both inner plates 1, 1, and both ends of the chain pin 4 fitted into the chain roller 6 are connected to the holes 8. , 9 and connect them, the conveyance chain A can be assembled.

As shown in Fig. 6, the conveyance chain A is aligned with the chain rail B and is attached by wrapping it around the sprockets at both ends.As the conveyance chain A rotates during operation, it is pulled by the grain culm to be threshed. As shown in Fig. 6, even if the inner surface of the inner plate 1 comes into pressure contact with the chain rail B, the bent edge 3 of the inner plate 1 is bent outward, so the bent edge 3 will not damage the outer surface of the chain rail B. It will slide without any problem.

Moreover, since the protruding surface portion 5 of the outer plate 2 is slightly higher than the height of the bent edge 3, both plates 1 and 2
Even if they rotate relative to each other, the bent edge 3 rotates smoothly without being hit by the outer plate 2.

As described above, the present invention provides a grain culm conveying section of an agricultural working machine that is configured to be able to pinch and convey grain culms by means of a conveying chain that slides along a chain rail. A bent edge is formed on the outer periphery of the inner plate, and a bent edge is formed on the outer peripheral edge of the inner plate, and a bent edge is formed on the outer peripheral edge of the inner plate. Since the projecting surface portion that can be contacted and is slightly higher than the height of the bent edge is formed by pressing,
The contact between the inner plate of the conveyor chain and the chain rail becomes smoother, and even if the inner plate is pressed against the chain rail, there is no longer any problem of the inner plate scratching and abrading the chain rail, which was the case in the past. The grain culm can be transported smoothly and reliably by rotating smoothly without damaging the grain, and has a feature that it can be carried out suitably with a simple structure.

[Brief explanation of the drawing]

Fig. 1 is a side view of the threshing machine, Fig. 2 is a side view of a part of the conveyance chain which is an embodiment of the present invention, Fig. 3 is a plan sectional view of part of Fig. FIG. 5 is a side view of the outer plate, and FIG. 6 is a longitudinal sectional view of a portion of FIG. 1. B...Chain rail, A...Transportation chain, 1...
... Inner plate, 3 ... Bent edge, 4 ... Chain pin, 2 ... Outer plate, 5 ... Projection part.

Claims (1)

[Scope of utility model registration request] In a grain culm conveyance section of an agricultural working machine that is configured to be configured so that grain culms can be pinched and conveyed by a conveyance chain that slides along a chain rail, outer peripheral edges of both inner plates on both sides of the conveyance chain are provided with an outer periphery. A bent edge slightly bent to the side is formed, and the inner side of the end of both outer plates connected to the outer side of one end side of both inner plates via a chain pin is capable of contacting the outer surface of the inner plate, and the bent edge A conveyor chain structure characterized by forming a protruding surface portion slightly higher than the height by pressing.