JPH0117162Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a handling tooth device for a threshing machine in which a partition plate is installed on the inner wall of a handling chamber along the rotating direction of the handling teeth installed in the handling barrel. .

Generally, it is desirable that the grains threshed in the handling chamber of the threshing machine be allowed to leak at the starting end of the length receiving net without being transferred to the rear part. This is because if the grains are transported to the rear, they will mix with the generated straw waste and become dust, making subsequent sorting difficult.
Moreover, since the straw waste generated in the handling chamber increases the load on the handling barrel, it is desirable that the straw waste is not allowed to stagnate in the handling chamber, but is quickly moved rearward and discharged from the dust inlet. On the other hand, the gap between the tip of the handling tooth and the receiving net or cylinder cover must be maintained at a narrow and appropriate gap in order to improve threshing performance. Therefore, the height of the partition plate installed along the rotation direction of the handling teeth needs to be set high in order to prevent the grains from moving backwards and cause them to leak early. In this case, the handling teeth near the partition plate and the other handling teeth are set at the same height, and if the partition plate is made taller, the overlap between the height partition plate and the adjacent handling teeth increases accordingly. The backward transportation of the straw waste that has been generated also becomes a problem, resulting in an increase in the load on the handling barrel.

The present invention was devised in view of the above-mentioned actual situation, and in particular, the partition plate is installed in an upright position approximately in the center between the handling teeth, and the heights of the left and right handling teeth adjacent to the partition plate are set at different heights. By setting the height of the handling teeth lower than the height of the handling teeth, the height of the partition plate can be set higher without increasing the overlap between the handling teeth and the partition plate adjacent to the partition plate, and leakage at the beginning of the grain receiving net can be reduced. This facilitates the lowering of the straw, improves sorting, and facilitates the movement and discharge of generated straw waste to reduce the load on the handling barrel.

An embodiment of the present invention shown in the drawings will be described below. 1 is a handling room of a threshing machine;
The handling room 1 is surrounded by a front machine wall 2, a rear machine wall 3, a cylinder cover 4 and a receiving net 5,
In the handling chamber 1, a handling barrel 6 with a large number of handling teeth 7 is installed, and a handling barrel shaft 6 is mounted between the front machine wall 2 and the rear machine wall 3.
It is pivoted to a. 8 is a grain supply port formed in the front machine wall 2, and 9 is a grain discharge port formed in the rear machine wall 3. Reference numeral 10 denotes a handling port that opens at the upper side of the handling chamber 1, and outside thereof, a feed chain 11 is provided at the bottom and a guide rail 12 is provided at the top.
The grain culm pinched by the grain culm passes through the handling chamber 1 from the grain culm supply port 8 and is discharged from the grain culm discharge port 9. Reference numeral 13 denotes a dust inlet opening at the terminal end of the handling chamber 1.

There is a dust exhaust port 1 at the rear of the machine below the supply port side of the receiving net 5.
A blower fan 16 is provided to form a sorting air passage that blows through the dust removal chamber 15 to the air filter 4, and is swingably installed in the sorting air passage. 18 is a dust exhaust fan provided on the side of the dust exhaust chamber 15. Below the swinging sorter 17 are a first receiving gutter 19 and a second receiving gutter 20.
is attached. The receiving net 5 is bent so as to surround the handling barrel 6 via the handling teeth 7, and is attached to the net attachment frame 2.
5, and 21 is a partition plate provided so as to protrude inwardly along the curved surface thereof, that is, along the direction of rotation of the handling teeth 7. Reference numeral 21a is a pedestal provided at the mounting base of the partition plate 21, and 21b is a bolt protruding outward from the pedestal 21a. etc. is screwed on. The left and right handling teeth 7a adjacent to the partition plate 21 are formed lower than the other handling teeth 7, and the gap _H1 between the tip of the adjacent handling teeth 7a and the pedestal 21a is larger than the other handling teeth. It is set to be equal to or larger than the gap H between the receiving net 7 and the receiving net 5.

Further, the handling port 10 is formed between an upper lip portion 4a formed on the cylinder cover 4 and a lower lip plate 22 provided below the upper lip portion 4a, and the lower lip plate 22 is projected approximately horizontally toward the handling barrel 6. . A brush 2 is attached to a pin 11a protruding inward from the feed chain 11.
3 is suspended, and as the feed chain 11 moves, the tip of the brush 23 comes into sliding contact with the lower lip plate 22 and sweeps it. In this way, by forming the lower lip plate 22 substantially horizontally, it is possible to improve the feeding posture of grain culms to the handling barrel, reduce the scattering of grains from the handling chamber 1, and also to prevent grains from falling when there are no grain culms. The structure is such that the scattered particles that have landed on the lip plate 22 are caused to fall toward the fourth opening 24 by the sweeping action of the brush 23.

The present invention is constructed as described above, and the grains supplied into the handling chamber 1 from the grain supply port 8 by the feed chain 11 are transferred to the handling cylinder 6 and the cylinder cover 4.
The grain is threshed by the handling teeth 7, 7a while being transported backward through the grain culm discharge port 9, and is then transported to the outside of the handling room 1. At this time, threshing mainly occurs at the starting end of the handling chamber 1, and grains that are granular and have a large specific gravity repel randomly along the inner wall surface of the handling chamber (mainly the inner surface of the receiving net 5). Although it tries to move backwards, it is blocked by the partition plate 21 set high, and leaks from the receiving net 5 above the partition plate 21. Furthermore, a large amount of long straw and ear cuts are mainly generated at the starting end of the handling chamber, and these are caught by the handling teeth 7 and transported backwards by the transporting action of the handling teeth 7, but the height of the partition plate 21 is set high. Even though the handling tooth 7a adjacent to the handling tooth 7a is formed particularly low, the overlap between the handling tooth 7a and the partition plate 21 is small, so the generated straw waste is not dammed up by the partition plate 21 and is transferred to the handling tooth. As a result, the dust smoothly climbs over the dust, is quickly transferred to the rear, and is discharged from the dust inlet 13 without being stagnated in the handling chamber 1.

In addition, the gap _H1 between the tip of the handling tooth 7a and the pedestal 21a of the partition plate 21 is set to be equal to or larger than the gap H between the other handling teeth 7 and the receiving net 5, so that the _grains are It will not get caught in between and cause damage.

In addition, the grains etc. leaked from the receiving net 5 and the dust inlet 13
The dust particles discharged from the filter drop onto the oscillating sorting body 17, and while being oscillated and transferred, the grains are collected in the first receiving gutter 19 by wind separation, and the third part such as straw waste is collected. is discharged from the dust outlet 14 to the outside of the machine.

In this way, the present invention provides a threshing machine in which a partition plate is installed upright on the inner wall surface of the handling chamber along the rotational direction of the handling teeth installed in the handling barrel. By erecting it in the central position and making the height of the left and right handling teeth adjacent to the partition plate lower than the height of the other handling teeth, the overlap between the handling teeth adjacent to the partition plate and the partition plate is increased. The height of the partition plate could be set high without any problems, and the high partition plate mainly prevents the grains shed at the beginning of the handling chamber from moving backwards and prevents leakage at the beginning of the receiving net. This allows for better sorting in the next process by preventing grains from being discharged from the end of the handling chamber as dust as much as possible, and also allows the overlap between the partition plate and the adjacent handling teeth to be set small. The straw waste generated at the starting end of the handling chamber is also smoothly transferred to the rear through the partition plate, and is discharged from the dust outlet without being stagnated in the handling chamber, reducing the load on the handling barrel. It is something that plays.

[Brief explanation of the drawing]

The drawings show an embodiment of a threshing machine equipped with the device of the present invention, in which Fig. 1 is a side sectional view of the threshing machine, Fig. 2 is a front sectional view thereof, and Fig. 3 is a partial view thereof. The plan view shown in FIG. 4 is an explanatory view showing the relationship between the handling teeth, the partition plate, and the receiving net. 1... handling room, 4... cylinder cover, 5...
Receiving net, 6...handling cylinder, 7,7a...handling tooth.

Claims (1)

[Scope of utility model registration request] In a threshing machine in which a partition plate is erected on the inner wall surface of a handling chamber along the rotational direction of the handling teeth installed in the handling barrel, the partition plate is installed at approximately the center position between the handling teeth, and A handling tooth device for a thresher, characterized in that the height of the left and right handling teeth adjacent to the partition plate is lower than the height of the other handling teeth.