JPH0122442Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a receiving net for a threshing machine.

(Prior art) The receiving net of a conventional threshing machine is generally fixed to the machine frame, and when threshing ordinary grain culms, the mesh is not clogged and grains do not leak out. However, when threshing wet grain culms, grains and straw tend to adhere to the receiving net, which clogs the net and prevents the grain from leaking out. Objects become stagnant in the handling chamber, which increases handling torso resistance.
Eventually, there are defects such as the inability to thresh.

Therefore, as shown in Japanese Patent Application Laid-Open No. 57-206311, by swinging the receiving net in the axial direction of the handling cylinder (back and forth direction), it is possible to prevent the receiving net from clogging and to facilitate the transfer and dusting of straw waste. Network devices have been devised to facilitate this.

(Problems to be solved by the invention) However, while the above-mentioned receiving net device can prevent clogging of the receiving net and quickly transfer the straw waste, reducing the load on the handling barrel, Long straw and ear cuts that require chemical treatment are transferred too quickly at the same time, and due to insufficient residence time, they are discharged from the dust outlet without being divided into small pieces, which has a negative impact on the subsequent sorting process, and even causes problems such as scattering. This results in defects such as increased grain loss.

The technical problem of the present invention is to prevent clogging of the receiving net during wet grain threshing, promote the transfer of the threshed grain in the handling room, and reduce the load on the handling barrel. Long straw etc. should be sent out from a sufficiently divided post-handling room to ensure good sorting.

(Means for solving the problem) The receiving net device for a threshing machine according to the present invention, which was taken to solve the above problems, is as follows.

A threshing machine in which a partition plate 17 formed in an arch shape along the curved surface of the receiving net 5 is provided on the receiving net 5 of the handling room 1, and the tip 17a of the partition plate 17 is inserted into the tip trajectory of the handling teeth 7. In this embodiment, the receiving net 7 is supported together with a partition plate 17 so as to be able to reciprocate in a direction parallel to the handling cylinder shaft 8, and the partition plate 17 is provided with a hole 17b.

(Function) The grains, etc. that have fallen onto the receiving net 5 are subjected to the oscillating sorting action caused by the back and forth swinging of the receiving net 5, and leak through the mesh reliably without causing clogging, and also prevent grains from being generated in the handling room. The small debris is transferred rearward by the above-mentioned rocking motion, and is transferred to the top of the partition plate 17 and the holes 1 drilled in the partition plate 17.
7a, and are quickly discharged from the dust inlet 16. Relatively large straw, ear cuttings, etc. are dammed up by the partition plate 17, and after being sufficiently stagnant and fragmented, they are collected in the same way as the small debris mentioned above. The dust is discharged from the dust port 16.

(Embodiment) 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 chamber 1 is surrounded by a front wall plate 2, a rear wall plate 3, a cylinder cover 4, and a receiving net 5. Inside the handling chamber 1, there is a handling net with a large number of handling teeth 7 planted in a spiral shape. The barrel 6 is supported by a handling barrel shaft 8 which is mounted between the front wall plate 2 and the rear wall plate 3. 2a is a grain supply port formed in the front wall plate 2, and 3a is a grain discharge port formed in the rear wall plate 3.

Reference numeral 10 denotes a handling port which is opened on one side of the upper part of the handling chamber 1, and outside thereof there is a feed chain 11 at the bottom.
Guide rails 12 are provided opposite to each other at the top, and the grain culm caught between the feed chain 11 and the guide rail 12 passes through the upper part of the handling chamber 1 from the grain culm supply port 2a, and is discharged from the grain culm discharge port 3a. It is configured like this.

The receiving net 5 is curved so as to surround the handling barrel 6 through the handling teeth 7, and is not directly fixed to the aircraft body, but is suspended from the aircraft body via arms 13, 13, and is pivotally supported on the aircraft body. Cam 1 attached to camshaft 14
The cam ring 14b of 4a and the starting end of the catch net 5 are connected by a rod 15, so that the catch net 5 can swing in the direction of the handling trunk axis 8 (in the longitudinal direction of the machine body). A dust inlet 16 is opened between the terminal end of the receiving net 5 and the lower part of the rear wall plate 3.

The middle part and the end part of the receiving net 5 are made to protrude inwardly along the curved surface of the receiving net 5, and the tip 17a is used to handle the teeth 17.
An arcuate partition plate 17 that faces in between (that is, extends into the rotation locus of the handling teeth 7) is fixed. A long hole 17b is formed in the partition plate 17.

Further, the interval between the handling teeth 7 adjacent to the partition plate 17 is formed to be larger than the interval between the other handling teeth 7. Reference numeral 20 denotes a receiving plate provided below the starting end of the handling chamber 1, which is formed at an angle so as to guide the grain threshing in this portion to the receiving net 5.

A blower fan 23 is provided below the starting end of the handling chamber 1 to form a sorting air path that blows through the dust exhaust chamber 22 to the dust exhaust port 21 at the rear of the machine. It is constructed so that it can swing. The oscillating sorting body 24 includes a first flow plate 25 below the receiving screen 5, a first sorting screen 26 extended thereto, and a dust sorting shelf provided from below the dust outlet 16 to below the dust exhaust chamber 22. 27.Second sorting shelf 2 installed below the dust extraction chamber
It is composed of 8 etc. 29 is the first sorting net 2
The first receiving gutter installed below 6, 30 is the second sorting shelf 2
This is the second gutter installed below No.8.

The side plate 31 on the handling port 10 side of the handling chamber 1 is bulged outward, and the space formed by this bulges out.
A movable plate 32 whose lower part is pivoted so as to be able to approach and move away from the handling cylinder 6 is provided. Reference numeral 32a denotes a guide plate provided on the movable plate 32 and projected inward, the tip of which is deeply inserted into the rotation trajectory of the handling teeth 7. 3
2b is a support shaft of the movable plate 32, and an arm 32c is attached to one end.
is installed.

33... is a straw-cutting sickle and is attached to a sickle mounting shaft 33b which is supported below the support shaft 32b. The shaft 33b
The tip of arm 33c attached to one end and arm 3
It is connected to the tip of 2c by a rod 34. 3
Reference numeral 5 denotes a spring stretched between the arm 33c and the machine body, and the straw-cutting sickle 33 is biased toward the upper side in the rotational direction of the handling barrel by this spring 35, and is in a position deep within the rotational trajectory of the handling teeth together with the guide plate 32a. Retained. For example, when the straw waste rotating in the handling chamber 1 increases during threshing of wet materials, the resistance of the handling body also increases. The sickle rotates around the sickle attachment shaft 33b in the direction of rotation of the handling barrel, and along with this, the movable plate 32 also rotates, and the depth of penetration of the guide plate 32a into the rotational trajectory of the handling teeth becomes shallower. This makes it easy to move the straw waste in the handling chamber backwards, and the straw waste is quickly discharged from the dust inlet 16, reducing the resistance of the handling cylinder.

The present invention is configured as described above, and the grain culm supplied into the handling chamber 1 from the grain culm supply port 2a by the feed chain 11 and the guide rail 12 is transferred to the handling chamber 1 through the grain culm supply port 2a.
The grain is threshed by the handling teeth 7 while being transferred rearward between the grain culm discharge port 3a and the cylinder cover 4, and is discharged to the outside of the handling room 1 from the grain culm discharge port 3a.

At this time, threshing mainly occurs at the starting end of the handling chamber 1, and most of the grain falls onto the receiving net 5. Grain threshing is subjected to the oscillating sieving action of the receiving net 5, and the grains immediately leak from the receiving net 5, and even when the material is wet, debris adheres to the screen surface and causes clogging, and the grains are There is nothing that would impede leakage. Some of the relatively small debris leaks from the receiving net, but most of it is transferred to the rear by the swinging action, passes through the hole 17b drilled in the partition plate 17, and is immediately sent out from the dust inlet 16. It will be done. In addition, relatively large long straw and spikelets are
After being stopped by the partition plate 17, sufficiently retained in the handling cylinder, and divided into pieces, it is sent out from the dust inlet 16 in the same way as the small debris mentioned above.

Incidentally, the grains and small debris leaked from the receiving net 5 fall onto the swinging sorter 24, and while being swingingly transferred to the rear, the grains are subjected to a wind sorting action and the grains reach the receiving gutter 29 first. The dust particles collected and discharged from the dust outlet 16 and the small debris leaked from the receiving net 5 are oscillatedly transferred to the rear by the oscillating sorter 24, while the wind sorting action is performed from the dust outlet 21. It is ejected outside the aircraft.

(Effect of the invention) The receiving net 5 is provided with a partition plate 17, and the receiving net 5 is connected to the partition plate 1.
7 to reciprocate in a direction parallel to the handling cylinder axis 8,
In addition, since holes 17b are formed in the partition plate 17, the threshing grains that have fallen onto the receiving net 5 are caused by the back-and-forth swinging action of the receiving net 5, and even if the material is wet, debris will adhere to the mesh and cause clogging. The grains reliably leak through the receiving net 5 without any leakage, small debris passes through the holes 17b and is quickly transferred to the rear and is sent through the dust inlet 16, and relatively large straw and ear cuts are removed. etc. are temporarily blocked by the partition plate 17 and stagnate, and after being sufficiently finely divided by the handling teeth 7, they are sent out from the dust inlet 16 in the same way as the small debris mentioned above, thereby reducing the load on the handling barrel. At the same time, good sorting can be achieved.

[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 front sectional view thereof, and Fig. 3 shows the structure of the straw cutting sickle and movable plate. FIG. 1... handling room, 5... receiving net, 7... handling teeth, 8...
Handling barrel shaft, 17...partition plate, 17b...hole.

Claims (1)

[Scope of utility model registration request] A threshing machine in which a partition plate 17 formed in an arch shape along the curved surface of the receiving net 5 is provided on the receiving net 5 in the handling room 1, and the tip 17a of the partition plate 17 is inserted between the tip locus of the handling teeth 7. A receiving net for a thresher is characterized in that a receiving net 5 is supported together with a partition plate 17 so as to be able to reciprocate in a direction parallel to a handling barrel shaft 8, and a hole 17b is bored in the partition plate 17. Device.