JPH0122436Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a small-diameter rotating shaft along the grain culm conveying direction, which is installed above and at least on one side of the movement passage in the handling room for the grain culms that are held and conveyed in a horizontal position in the feed chain. A large number of rotary handling bodies each having a large number of handling teeth attached to the grain culm are supported in parallel in the direction of the grain culm, and the rotation trajectories of the adjacent rotary handling bodies on the left and right are overlapped, so that the grain culm is The present invention relates to a threshing device configured to handle and thresh grain toward the tip side.

The above-mentioned threshing device stretches the grain culm in a straight line and threshes it with a group of handling rotors arranged in parallel in the direction of the culm, so there is little unhandled material, and each handling rotor is installed in a general threshing device. It requires a sufficiently small diameter compared to the handling cylinder used, and has the feature that the vertical width of the threshing section can be made small.

However, on the other hand, because the rotation axis of the handling rotor is small, grain culms tend to get wrapped around it, and grain culms that are curved or brought into the handling room in an inclined position that is not orthogonal to the rotation axis of the handling rotor. Grain culms tend to wrap around the drive shafts of the individual handling rotors that act across the culms, and even if they do not wrap around, they tend to generate ear breakage and straw waste, and for this reason, handling is difficult. This method has disadvantages in that the indoor threshing performance is reduced and the sorting performance is also reduced.

This invention was made in order to eliminate the above-mentioned drawbacks of this type of threshing device that uses a large number of handling rotors, and its feature is that at least the grain culm supply port side of the group of handling rotors is The left and right adjacent handling tooth groups are arranged in an inclined manner such that the closer to the tip of the grain, the lower the side in the grain culm conveyance direction in plan view.

According to the above configuration, the following effects are obtained.

With the above configuration, the grain culms that are brought into the handling room in a posture that is not optimal for threshing are transferred to the handling teeth of a group of handling rotors that rotate at an extremely high speed compared to the feed chain. Therefore, the grain is combed from the feed chain side in a direction away from the feed chain, and stretched in the direction of the ear tip, thereby correcting the grain to the best posture for threshing. As a result, the unnecessary squeezing action of the handling teeth on the grain culm is reduced, resulting in damage such as generation of straw waste in the handling chamber or wrapping of the grain culm around the drive rotation shaft of the handling rotor. is removed;
This improved the performance of the entire threshing machine.

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, grains are placed on the side of the conveyance path of the grains that are held in a horizontally suspended position by the feed chain 1 and are carried in through the grain supply port 9 and transported through the handling chamber 2. A large number of handling rotors 3 having plate-shaped handling teeth 3b fixed to a drive rotary shaft 3a having an axis along the culm conveying direction are arranged in parallel in the grain culm direction, and each handling rotor 3... is rotated. They are arranged so that their trajectories overlap with each other in the left-right direction, and each handling rotary body 3 is driven to rotate in a direction A that acts toward the grain culm tip.

Further, a substantially flat receiving net 4 is installed as a filtering material in the lower part of the handling chamber 2 to constitute a threshing section.

Below the above-mentioned threshing, the threshed material leaking through the receiving net 4 is received by a swinging sorting plate 5, and grains, etc. are collected by the swinging and sorting air from the winnowing machine 6, and the grains are collected at the bottom of the device. The sorting section is configured so that items that require reprocessing are transported out of the apparatus by the No. 1 transport screw 7 and returned to the handling room 2 by the No. 2 transport screw 8.

Further, as shown in FIG. 3, the handling teeth 3b are connected to the handling chamber 2
A plurality of drive rotation shafts 3a supported in parallel inside...
They are fixed to the plurality of drive rotation shafts 3a so as to be located at the intersection of the imaginary straight line which is diagonal toward the conveyance direction B of the feed chain 1 downward as it goes away from the feed chain 1. In other words, in a plan view, each of the handling teeth 3b... is connected to a plurality of drive rotation shafts 3 in a stepped manner that deviates downward from the feed chain 1.
It is fixedly installed at a. A row of handling teeth 3b arranged in a stepped manner constitutes a handling tooth group 3B, and many rows of this handling tooth group 3B are arranged in parallel in the grain culm conveying direction.

The reason why the handling teeth group 3B is shaped like a step as described above is that although the handling teeth 3b rotate at a much higher speed than the conveying speed of the feed chain 1, the combing action is carried out from the root of the grain culm. It takes a small amount of time to reach the tip, and even within this short time, the grain culm stock is transported in the transport direction B, so simply combing in the direction of the grain culm body will cause the grain to lag behind. In this embodiment, the tip of the ear is set to be transported slightly in advance.

Moreover, the present invention, as shown in FIG.
Several rows of B are provided only in the part near the grain culm supply port 9,
It is also possible to particularly correct the bending or deformation of the grain culm at the time of grain culm delivery.

The present invention may be applied to a structure in which the handling rotary body group 3B is arranged in parallel on both sides of the grain culm conveyance path, and furthermore, the present invention may be applied to a so-called upper It may also be applied to a handling type threshing device.

[Brief explanation of drawings]

The drawings show an embodiment of the threshing device according to the present invention, and FIG. 1 is a vertical side view of the threshing device, FIG. 2 is a longitudinal rear view of the threshing section, and FIG. 3 is a schematic cross-sectional plan view of the threshing section. FIG. 4 is a schematic cross-sectional plan view showing another embodiment of the threshing section. 1...Feed chain, 2...Handling room, 3a...
...rotating shaft, 3b...handling tooth, 3...handling rotating body, 3
B...Group of treated teeth.

Claims (1)

[Scope of utility model registration request] A large number of handling teeth 3b are provided on a small-diameter rotating shaft 3a along the grain culm conveyance direction, at least on one side above and below the movement passage in the handling chamber 2 for the grain culm to be conveyed while being held in a horizontal rack position by the feed chain 1. A large number of attached rotary handling bodies 3 are supported in parallel in the grain culm direction, and the rotational trajectories of the left and right adjacent handling rotary bodies 3 are overlapped, so that the three groups of handling rotary bodies move the grain culm toward the ear tip side. The threshing device is configured to handle and thresh the grain toward the grain culm conveyance direction, in which the left and right adjacent handling teeth 3B group at least on the grain culm supply port side of the 3 groups of handling rotors are arranged such that the closer to the ear tip, the lower the side in the grain culm conveyance direction in plan view. Threshing equipment arranged in an inclined manner located at