JPH0135156Y2 - - Google Patents

Description

[Detailed explanation of the invention] In general, in a threshing machine, most of the grain is threshed at the starting end of the handling drum, and in particular, from the grain culm supply port side, many grains are violently repelled by the handling teeth. but,
Trying to fly out of the aircraft.

In order to prevent this, conventionally, for example,
There is a brush provided with fimbriae or the like at the grain culm feeding port, as disclosed in Japanese Patent No. 19747, but this brush is made up of an aggregate of fimbriae, and there are inevitably gaps between the fimbriae, which prevents the grain from growing. It is not possible to completely prevent the scattering of grains, and since the fimbriae are thin and weak, they deform in the direction of feeding grain culms and cannot withstand long-term use. There is a product that has a scattering prevention plate suspended at the grain culm entrance, as shown in Publication No. 51-78166. A guide plate that acts to prevent scattering is provided separately, and since the anti-scattering plate and the guide plate move separately, a gap is created between them, from which the grains scatter, and at the same time resists the supplied grain culm. If the scattering prevention plate is made so that it can be easily retracted when the grain culm comes into contact with the grain in order to introduce it into the grain culm supply port without any problem, the restoring force will be weakened and it will be delayed for the scattering prevention plate to return to its original position when the grain culm is interrupted. In addition, there is a risk that the particles may easily fluctuate due to machine vibration or external wind, creating gaps from which scattered grains may leak.On the other hand, if it is difficult to escape, the resistance may cause defects that delay or disturb the supply of grain culms. arise.

The purpose of the present invention is to eliminate the above-mentioned conventional defects, and the present invention is provided with a scattering prevention plate that can be deformed and retracted by contact with the supplied grain culm on the entire surface of the grain culm supply port. , the scattering prevention plate is made of an elastic body, the handling opening side portion is bent rearward to extend integrally, and the upper edge of the scattering prevention plate is attached to the fuselage and suspended. It reliably prevents grains from scattering out of the machine from the culm supply port, especially grains from the corner between the supply port side and the handling port side, and also ensures smooth supply of grain culms. The aim is to make sure that

Hereinafter, the embodiment shown in FIGS. 1 to 3 will be described. Reference numeral 1 denotes a handling cylinder mounted on a shaft in a handling chamber 2,
A feed chain 3 and a clamping rail 4 are disposed opposite to each other along the handling opening. Reference numeral 5 denotes a swinging sorting body extending from the bottom of the receiving net 6 to the dust-exhaust sorting chamber 7, and is installed between both side walls so as to swing back and forth.The swinging sorting body 5 is constructed as follows. There is. In other words, 8 is the receiving net 6
9 is a stroke rack extending from the tip of the receiving plate 8; 10 is a stroke rack 9;
It is a sorting net attached below the
The tip of the return plate 11a is located closest to the tip of the return plate 11a. 12 is the most return board 11
It is a stroke rack extending from the tip of a, and is positioned above the second receiving gutter 13.

Further, 14 is a blower fan, and the sorting air generated by this blows through the sorting net 10 through the top of the first receiving gutter 11, and is sent to a suction type dust exhaust fan 15 attached to the upper side wall of the dust sorting room 7. oriented. 15a is a suction port of the dust exhaust fan 15.

Figure 3 shows the structure near the grain culm supply port.
A cylinder cover 20 that covers the upper part of the handling chamber 2 is extended forward, and its extended portion is opposed to a grain culm supply table 25 provided below a grain culm supply port 23.

21 is a scattering prevention plate provided in front of the grain culm supply port 23 so as to be deformed and retracted when the supplied grain culm comes into contact with it, and is made of an elastic body.
The handling port side portion 21b extending along the feed chain 3 from the supply port side portion 21a is bent rearward and integrally extended, with its upper edge suspended from the cylinder cover 20.

To explain this in detail, 22 is an L-shaped back seat provided on the back of the upper edge of the scattering prevention plate 21, 22a is a mounting bolt, and the scattering prevention plate 21 is attached to the upper edge of the supply port side part 21a and the handling port side part 21b. It is attached to the end face of the cylinder cover 20 while being sandwiched between the back supports 22, and its lower edge is brought close to the grain culm supply table 25.

The present invention is constructed as described above, and the grain stem whose stock part is held between the feed chain 3 and the starting end of the clamping rail 4 reaches the front of the grain stem supply port 23 by the moving action of the feed chain 3.

At this time, the grain culm supply port 23 is blocked by the scattering prevention plate 21, but the scattering prevention plate 21 is deformed by contact with the grain culm, and the supply port side part 21a is pushed and bent toward the handling chamber, The side portion 21b is bent toward the ear tip side, and the bent portion 21c is deformed toward the handling chamber 2 so that the inner surface forms a funnel shape, and a scattering prevention plate 2 is placed on the upper surface of the grain culm.
It passes under the scattering prevention plate 21 with the lower edge of 1 in sliding contact.

The grain culm supplied to the handling chamber 2 from the grain culm supply port 23 is threshed by the action of the rotating handling cylinder 1.

In the above action, grains that are scattered by the handling teeth installed in the handling barrel 1 and try to scatter from the grain culm supply port 23 and fly in the direction of the feed chain 3 are caught by the handling port side part 21b of the scattering prevention plate 21. Grain grains that fly toward the front side of the culm supply port 23 are prevented from flying out, and grains that fly toward the front side of the culm supply port 23 are blocked by the supply port side portions 21a, and grains that fly toward the middle direction, that is, toward the corner of both grains, are blocked by the bent portion. It is received and blocked by the funnel-shaped portion formed by 21c, and is guided toward the handling chamber and returned into the handling chamber as the supplied grain culm moves.

In addition, when the grain culm supply is interrupted, the scattering prevention plate 21, which has been bent inward as described above, returns to its original position, and the entrance of the grain culm supply port 23 is completely closed, preventing the grains from leaving the machine. Splashing is prevented. At this time, in particular, the scattering prevention plate 21 has an upper edge fixed and a lower edge free, but unlike a planar curtain-shaped plate, a part of it is integrally extended toward the handling opening and formed into a bent shape. However, since the bending part 21c is strengthened, the restoring force is strong and it quickly returns to its original position, and the grain culm supply port 23 is closed, and if the grain culm supply is interrupted, it will not be affected by the effects of machine vibration or external wind. It does not open and close freely due to the impact, and grains are prevented from flying out of the machine.

Furthermore, when the supplied grain culm passes through the scattering prevention plate 21, the stock base passes through a stiff bend as described above, but the stock base has a high culm rigidity and is close to the feed chain 3. Therefore, the scattering prevention plate 21 can easily pass through the bent portion 21c.
The tip side that is farther away from 1c is more likely to bend, but since the tip of a soft grain culm passes through this easily bendable part, it is unlikely that the tip will be delayed or the culm will be disturbed.

Next, the leaked matter generated in the handling room 2 and leaked from the receiving screen 6 and the dust sent out from the dust sending port 6a fall onto the receiving plate 8 and are transferred to the stroke rack 9. Sorted by a stroke rack 9 and a sorting net 10,
The first straw is collected in the first receiving gutter 11, the rest is transferred to the straw rack 12 and sorted there, the second straw is collected in the second receiving gutter 13, and the straw waste is collected in the dust exhaust fan 1.
5, it is ejected from the aircraft.

In this way, the present invention covers the entire surface of the grain culm supply port 23,
In the one provided with the scattering prevention plate 21 which can be deformed and retracted by contact with the supplied grain culm, the scattering prevention plate 21 is made of an elastic body, and the handling opening side portion is bent rearward to form an integrated structure. In addition to extending the scattering prevention plate 21, the upper edge of the scattering prevention plate 21 is attached to the machine body and suspended, so grains will not be scattered outside the machine from the gaps between the vertical and horizontal scattering prevention plates as in the conventional case. When feeding grain culms, the bent part of the anti-scattering plate is bent by the feeding grain culm and deformed into a funnel shape, causing grains that try to fly out of the machine at the corner between the supply port side and the handling port side. It is possible to reliably catch particles and recirculate them into the handling chamber.

In addition, the anti-scattering plate is bent to make it stronger, so it closely follows the top surface of the grain culm without creating a gap between the grain culm and the grain culm, and quickly recovers when the grain culm is interrupted. Since the grain culm supply port portion is closed and no gaps are created due to deformation due to machine vibrations, outside wind, etc., it is possible to reliably prevent grains from scattering outside the machine from the grain culm supply port.

In addition, although it achieves the above effects, there is no problem with the strong bent part of the scattering prevention plate because it is close to the feed chain and the highly rigid stock base passes through, and the soft tip side is easy to bend. It has the characteristics that it can pass smoothly without causing any delay or disturbance because it passes through the area.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side sectional view of the threshing machine, Fig. 2 is a partially cutaway plan view, and Fig. 3 is a view of the vicinity of the grain culm supply port. FIG. 3...Feed chain, 21...Scatter prevention plate,
23... Grain culm supply port.

Claims (1)

[Scope of utility model registration request] A scattering prevention plate 21 is provided on the entire surface of the grain culm supply port 23, and the scattering prevention plate 21 can be deformed and retracted by contact with the grain culm. A scattering prevention device for a thresher, characterized in that the scattering prevention plate 21 is bent rearward and integrally extended, and the upper edge of the scattering prevention plate 21 is attached to the machine body and suspended.