JPH10178873A - Receiving net for threshing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receiving net for threshing device capable of excellently leaking down a single-grained processing object and raising threshing throughput by shifting the boundary line of the mesh of a receiving net to a grain culm plant foot side as reaching a grain culm carrying direction terminating end. SOLUTION: A feed chain whose carrying surface is positioned at an upper part as reaching a carrying direction terminating end side is provided, the mesh of this receiving net 4 is formed small at the upper side part 4a of a threshing cylinder rotating direction and large at a lower side part 4b and the boundary line A of the mesh of the receiving net 4 is shifted to the grain culm plant foot side as reaching the grain culm carrying direction terminating end. Also, it is preferable to linearly form the boundary line A of the mesh of the receiving net 4 over the entire length of the receiving net 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a feed chain in which a conveying surface is located at an upper position as far as a terminal end in a conveying direction.
The present invention relates to a receiving net of a threshing device in which a lower part is largely formed.

[0002]

2. Description of the Related Art Conventionally, when setting the mesh of a receiving net in a threshing apparatus to be different in the rotation direction of a handling cylinder, it is necessary to use a conventional method.
As shown in Japanese Patent No. 174636, the receiving net is divided into two parts in the circumferential direction along the axis of the handling cylinder rotating shaft with reference to the tip of the tip of the inserted grain culm. Is made small, and the eye contact on the lower side in the rotation direction of the handling cylinder is made large.

[0003]

In the threshing apparatus described above, the feed surface of the feed chain is provided in an inclined position that is located at a higher position as far as the end of the feed direction of the grain culm. However, there is an advantage that so-called stabbed paddy, which is achieved by pulling upward toward the transport end and approaching the drooping posture, that is, the grains swirled by the handling cylinder pierce the transported grain culm, is achieved.
And, the mesh of the receiving net, the mesh of the grained part of the grain is small, and the mesh of the tip is larger than that, so the entire mesh is formed to a certain size. Compared to things,
There is an advantage that the processed material singulated in the portion having a large mesh can be immediately leaked, and the threshing processing capacity can be increased.

However, in the above-described threshing apparatus, since the grain culm conveyed by the feed chain is pulled out of the handling chamber as far as the end of conveyance, the movement locus of the tip of the tip of the grain culm conveyed by the feed chain is reduced. With respect to the border line of the target, the closer to the end of the grain stalk transport direction, the more the seeds are shifted toward the base of the grain stalk, and there is an inconvenience that the leakage of the processed material in the area of the shift is reduced, There was room for

Therefore, as means for suppressing the above-mentioned disadvantages,
When the boundary line of the meshing along the handle cylinder rotation axis is displaced to the upper side in the handle cylinder rotation direction and set based on the tip end of the tip of the movement locus, the handle chamber entrance side, that is, the feed chain start end side At the entrance of the handling room, the spike tip of the transported grain culm protrudes greatly from the boundary of the mesh to the lower side in the handling cylinder rotation direction (the side with the larger mesh), and at the point where the mesh is larger, the grain culm is attached. There is an inconvenience that the grain portion easily escapes to the mesh of the receiving net, becomes difficult to be single-grained, and the threshing processing capacity is reduced. An object of the present invention is to eliminate the above disadvantages.

[0006]

According to a first aspect of the present invention, there is provided a feed chain in which a conveying surface is located at an upper position as far as a terminal end in a conveying direction, and the mesh of a receiving net is handled well in the cylinder rotation direction. In the threshing device in which the side portion is formed small and the lower side portion is formed large, the boundary line of the mesh of the receiving net is deviated toward the cereal stem base toward the end of the cereal stem transport direction. . [Operation] According to this configuration, the boundary of the mesh of the receiving net is
Even at the end of the transported grain culm, there is no large deviation from the tip trajectory of the grain culm transported by the feed chain. It will be leaked at the part. [Effect] According to the first aspect of the present invention, even at the end portion in the grain culm transport direction, good leakage of the treated product subjected to the monogranulation treatment is promoted, and the threshing capacity is further increased. can do.

According to a second aspect of the present invention, the boundary of the receiving network is formed linearly over the entire length of the receiving network. [Operation] According to this configuration, the same operation as in the invention according to claim 1 is performed, and the boundary line of the mesh of the receiving net is formed in a step-like shape, and the movement of the tip of the grain stem conveyed by the feed chain is performed. Compared to the case of approaching, it is possible to almost match the boundary line of the eye contact and the movement trajectory of the grain stem tip,
The difference between the two can be further suppressed. [Effect] According to the second aspect of the present invention, the above-described effect of the first aspect of the present invention is provided, and at the same time, the promotion of better leakage of the single-granulated treated product is promoted, and the threshing capacity is further increased. Can be up.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a threshing device mounted on a combine, 1 is a feed chain for transporting grain culm,
2 is a handling room, 3 is a handling cylinder provided in the handling room, 4 is a receiving net for leaking threshing material, and 5 is an oscillating sorting device for sifting the leaking material into grains and straw chips. is there.

As shown in FIG. 2, straw cutting blades 6 and 7 provided at the upper part of the handling chamber 2, clamping rails 8 provided so as to face the feed chain 1, and an upper case to which the handling cylinder 3 is mounted. 9A is attached to the lower case 9B so as to be able to swing open and close around the longitudinal axis P. The receiving network 4 includes:
The lower lip plate 10B of the upper lip plate 10A and the lower lip plate 10B, which form the handle 10 for inserting the cereal stem, is provided in a state of being connected to the lower end of the lower lip plate 10B in the rotation direction of the grip cylinder. It is mounted on a receiving net mounting frame 4A provided along the outer peripheral portion. The receiving network mounting frame 4A on which the receiving network 4 is mounted includes:
The lower end of the lower lip plate 1 is in a state in which the lower end of the lower side of the handlebar rotation direction wraps around a horizontal line passing through the rotation axis of the handlebar 3.
0B, the end of the lower side of the handle cylinder rotation direction and the rotation axis 3A of the handle cylinder 3
Are provided over a range of approximately 180 degrees on a virtual extension line B connecting

[0010] The feed chain 1 is provided in an inclined state such that the grain culm conveying surface is located at an upper position toward the end side in the grain culm conveying direction, and is provided along the feed chain 1 for inserting a grain culm. Lower lip plate 10B forming mouth 10
The grain culm conveyed by the feed chain 1 is provided such that the end of the grain is conveyed by the feed chain 1 in such a manner that the end of the feed chain 1 is inclined along the tangent to the upper end of the receiving net 4 in the rotation direction of the handle cylinder. Is held in a substantially vertical posture, and the stabbed paddy of the grain transported by the handling cylinder 3 is suppressed.

The receiving net 4 attached to the receiving net mounting frame 4A is integrally formed of resin, and the size of the mesh is changed in the rotation direction of the handling cylinder. The boundary line A of the meshing is provided along the movement locus of the tip of the tip of the grain culm conveyed by the feed chain 1 with reference to the tip of the tip of the inserted grain culm. The eye contact is formed small, and the eye contact of the lower part 4b in the handling cylinder rotation direction is formed large.

According to the above structure, the grained portion of the grain culm is subjected to threshing at the portion 4a having a small mesh size, and the processed product having been subjected to the single graining process is converted into a portion having a large mesh size at the lower side in the handling cylinder rotation direction. 4
It will be leaked immediately at b.

[Alternative Embodiment] In the above-described embodiment, the boundary line of the eye is formed linearly. However, as shown in FIG. 5, the boundary line may be formed stepwise. (Note that components having the same functions as those of the above-described embodiment are denoted by the same reference numerals and symbols as those of the embodiment.)

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of a threshing apparatus.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a plan view of a receiving network.

FIG. 5 is a plan view of a second embodiment of the receiving network.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Feed chain 4 Receiving net 4a Upper part on the receiving cylinder rotation direction in the receiving net 4b Lower part on the receiving cylinder rotation direction in the receiving net A Boundary line

Claims (2)

[Claims] 1. A feed chain in which a transport surface is located upward as it reaches a terminal side in a transport direction, and a mesh portion of a receiving net is formed so that an upper portion is made smaller and a lower portion is made larger in a cylinder rotation direction. In a threshing apparatus according to any one of the preceding claims, the boundary line of the mesh of the receiving net is deviated toward the cereal stem stock side toward the end of the cereal culm transport direction. 2. The receiving net of a threshing apparatus according to claim 1, wherein the boundary line of the mesh of the receiving net is formed linearly over the entire length of the receiving net.