JPS6050411B2 - Threshing machine second processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a second grain processing device for returning second grains generated during sorting in a threshing machine to a handling chamber for processing.

A combined threshing machine and a stationary or mobile threshing machine without a reaping machine are equipped with a threshing device consisting of a handling barrel, etc., and a sorting device for sorting the threshed grains.

The grains threshed by the handling drum that rotates in the handling chamber of the threshing device fall through the mesh of the handling chamber receiving net stretched below the handling chamber onto the sorting net, where they are sorted and collected. be done. On the other hand, during threshing, straw waste, ear cuts, kagimata, etc.
A large number of processed materials are generated, and these processed materials are transferred together with some of the grains within the handling chamber, and then discharged as waste from the dust exhaust port at the end of the transfer. The discharged waste material falls onto the strorack of the sorting device, and as it is transported by its oscillation, the grains are separated. Light straw waste, dust, etc. are collected and discharged outside the machine. The waste material remaining as a result of sorting is called the second grain, and after falling onto the second spiral conveyor and being transferred, it is transferred to the second reducing cylinder by the second grain lifting machine at the end of the transfer. is lifted up and returned to the handling room. The reduced second material joins the treated material in the handling chamber, and the sorting process is repeated. In the reduction processing of the second grain of the threshing and sorting work of the threshing machine performed in this way, it is desirable to send the grains mixed in the second grain to the sorting room as quickly as possible to sort and collect them. In conventional equipment, all of the grains are returned to the handling chamber while the grains are mixed with the second grain, which not only causes damage to the grains, but also increases the load in the handling chamber, making it difficult to sort through threshing. There were many problems, such as reduced efficiency and, in severe cases, deformation of the handling cylinder.

The present invention was made in view of the above points, and a spiral body is provided in the reduction chamber where the second material is reduced, and the free end is connected between the spiral body and the sorting chamber, and the lower end of the dust inlet to the handling chamber is connected to the spiral body. By providing a comb-shaped guide plate facing the edge, it facilitates the sorting and collection of grains and the sending of dust to the handling chamber, reducing the load in the handling chamber, preventing damage to grains and improving threshing and sorting efficiency. The present invention provides a second material processing device for a threshing machine which is designed to improve the performance of the grains.

Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings. Fig. 1 is a side sectional view of a threshing machine incorporating the second material processing device according to the present invention, Fig. 2 is a side view showing the main parts cut away, and Fig. 3 is a plan view and a perspective view of the guide plate. and cm
FIG.

In these figures, in a handling chamber 2 of a threshing machine 1, a handling barrel 4, which is formed in a cylindrical shape and has a large number of handling teeth 3 spirally arranged on its circumferential surface, is mounted on a shaft. In the top-handling type threshing machine 1, which performs threshing by positioning the upper part above the handling cylinder 4, the handling cylinder 4 rotates in the direction shown by arrow A in the figure. The upper part of the handling barrel 4 is covered with a handling barrel cover 5, and one side of the handling barrel 4 is covered with a handling chamber side plate 7 having a shell culm insertion port 6 open therein. Further, a handling chamber receiving net 8 formed in an arc shape concentric with the handling cylinder 4 is stretched below the handling cylinder 4, and a dust exhaust port is provided at the end in the direction of transfer of the processed material shown by arrow B in Fig. 2. 9 is opened downward. In the sorting chamber 10 formed integrally with the handling chamber 2 below, there is a rocking shelf equipped with a sorting net and a stroke rack 11 (not shown), which swings in the axial direction of the handling cylinder 4 by rotation of an eccentric cam. 12, and a sorting device consisting of a winnow (not shown) or the like.

The grains threshed in the handling chamber 2 fall through the mesh of the handling chamber receiving net 8, and the waste materials generated during threshing, such as straw waste, ears of ears, and scythes, are moved inside the handling chamber 2 by arrows. After being transferred in direction B, they fall from the dust outlet 9 and are separated by a screening net and a strorack 11, respectively. Furthermore, sorting room 10
At the bottom, there is a second spiral conveyor 1 which is formed in a spiral shape and transports the second products generated during sorting in the direction shown by arrow C in the figure.
3 is mounted on a shaft, and a second grain lifting machine 14 having a plurality of blades is attached to the end of the shaft protruding outside the sorting chamber 10. On the other hand, on the side of the second grain lifting machine 14 of the handling chamber 2, there is a reduction chamber 16 that communicates with the lower sorting chamber 10 and is separated from the handling chamber 2 by a handling chamber side plate 15. It is formed integrally with 2.

A second reducing cylinder 1 is installed diagonally upward from the exhaust side opening of the second fan body 17 surrounding the second grain lifting machine 14.
The reduction port 19 of No. 8 is opened toward the room at the upper end of the reduction chamber 16. Furthermore, inside the reduction chamber 16, a second processing spiral 20 as a spiral body is parallel to the handling cylinder 4 and has its terminal shaft end in the second object transfer direction C facing below the reduction port 19. It is rotatably mounted on an axis. In the handling chamber side plate 15, a dust inlet 21 is opened corresponding to the second processing spiral 20, and the second processing spiral 20 has a lower circumferential surface as shown by arrow D in FIG. It is configured to rotate in a direction toward the lower edge of the dust inlet 21. Further, between the second processing spiral 20 and the sorting chamber 10 below it, a guide plate 2 formed in an arc shape approximately concentric with the second processing spiral 20 is provided.
2 is supported by the outer wall of the reducing chamber 16 and the wire mesh frame 26 of the handling chamber, and is constructed over the entire length of the second processing spiral 20.

The guide plate 22 is formed into a comb shape with a free end as shown in FIG.
It faces the lower edge of the. On the other hand, on the side of handling room 2,
A feed chain 23 formed in an endless shape is stretched along the culm insertion port 6, and above the feed chain 23 is a lever 25 biased toward the feed chain 23 by a compression coil spring 24. is supported along the running edge.

In the threshing machine 1 configured as described above, the husk whose root portion is held by the feed chain 23 and the lever 25 is threshed while being transported by handling the tip portion and positioning it above the barrel 4. Ru.

The threshed grains fall through the mesh of the handling room receiving net 8 onto the sorting net in the swinging shelf 12, and are sorted and collected by the swinging of the swinging shelf 12. On the other hand, processed materials such as straw waste and ear pieces generated during threshing are transferred along with some grains in the direction of arrow B in the handling chamber 2, and are discharged as waste from the dust exhaust port 9 at the end. be done.

Then, this waste is sorted while being transferred on the stroll rack 11 by the swinging of the oscillating shelf 12, and some of the grains fall through the through holes of the stroll rack 11 and are separated from the grains. They are combined and collected. Light straw waste, dust, etc. are discharged to the outside of the machine by air from a winnowing machine (not shown) and suction from a suction fan.The dust remaining as a result of this sorting is
It is called the second grain, and falls onto the second spiral conveyor 13 with some grains mixed in, and is transported in the direction of arrow C.

The transferred second grain is scraped up by the second grain lifting machine 13 at the end of the transfer, lifted up and transferred inside the second grain cylinder 18, and then transferred from the return port 19 into the reduction chamber 16. is discharged to. The discharged second product is thrown toward the transfer starting end side of the second processing spiral 20 and is transferred in a direction returning to the reduction port 19.
During transfer, the second object rotates in the direction of arrow D during the second processing spiral 2
The grains are rotated by the guide plate 22 and processed by being rubbed between the grains and the guide plate 22 to separate the grains. and,
The separated grains are passed through between the teeth of the guide plate 22 into the sorting chamber 1.
0 and is sorted and collected, and the second item is returned to the handling chamber 2 through the dust inlet 21 where the free end of the guide plate 22 faces, where it joins with the material to be treated, and then the sorting is repeated. In this case, since the guide plate 22 is formed in a comb shape, the second item does not get caught in the hole and is smoothly returned to the handling chamber 2. In addition, the grains are separated while being transferred to the second processing spiral 20, and are not returned to the handling chamber 2 mixed with the second processing spiral. FIG. 4 is a sectional view of the vicinity of the second processing spiral 20 as another embodiment of the present invention, and in this embodiment, the gap between the guide plate 22A and the second processing spiral 20 is marked T and t. As shown by , the upper end portion is formed smaller than the other portions.

By doing this, even if the second grain that has fallen onto the second processing spiral 20 is moved around as the spiral 20 rotates, it will not pass through because the gap t is small, and only the grains will pass through. and falls from the guide plate 22A. Then, the secondary materials such as straw waste, while riding on the secondary processing spiral 20, move to the dust exhaust side and are returned to the handling chamber 2. As is clear from the above description, according to the present invention, in a threshing machine, a spiral body is provided in the reducing chamber where the second grain is returned, and the free end is sent to the handling chamber between the spiral body and the sorting chamber. A comb-shaped guide plate is provided facing the lower edge of the dust port, and the second grains returned to the threshing section are not directly returned to the handling chamber, but are thrown onto the spiral body in the recycling chamber, and transferred. By configuring it so that it is rotated and processed between the guide plate and the grain, sorting and collection of grains is facilitated, and straw waste is returned to the handling room without being caught on the guide plate. Damage to the grain is prevented, the load on the handling room is reduced, and threshing and sorting efficiency is significantly improved.

[Brief explanation of the drawing]

1 to 4 show a second material processing device for a threshing machine according to the present invention, FIG. 1 is a side sectional view of a threshing machine implementing this, and FIG. 2 is a cutaway view of the main parts. Side view, Figure 3 shows the guide plate, a is a plan view, b is a perspective view, c is cm
FIG. 4 is a cross-sectional view of the vicinity of the second processing spiral as another embodiment of the present invention. 1... Threshing machine, 2... Handling room, 4...
...Handling cylinder, 10... Sorting room, 16...
...Reduction chamber, 19...Reduction port, 20...
・Second processing spiral, 21... Dust inlet, 22...
・Guide plate.

Claims (1)

[Claims] 1. A spiral body that is parallel to the handling cylinder and rotates in a direction in which its lower circumferential surface faces toward the lower edge of the dust inlet is installed in a reduction chamber that is equipped with a second material return inlet from the sorting chamber and a dust inlet to the handling chamber. A comb-shaped guide plate having a free end facing the lower edge of the dust inlet is provided adjacent to the helical body between the helical body and the lower sorting chamber. The machine's secondary material handling device.