JPH0629010Y2 - 2nd reduction device of thresher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an improvement of the second material reducing device of a thresher.

2. Description of the Related Art In a thresher, it is already known that a second product such as an ear cutting grain or a branch adhering grain is reduced again on the rocking sorting body of the sorting unit to perform a re-sorting process. A blower type thrower or a spiral transfer type spiral cylinder is used as a means for lifting the second product to the sorting section. However, the spiral transfer type is intended to enhance the adaptability of the wetting material because the transfer is reliable. It has been widely adopted recently. Conventionally, as a transfer method using this spiral, a discharge blade is fixedly provided at the transfer end portion of a second object reducing spiral body mounted in a cylindrical body, and a discharge port that opens in a discharge case that covers the discharge blade is provided on a swing sorting body. There is also a structure in which a second object discharge passage facing the above is formed.

Problems to be Solved by the Invention By the way, when the second product is returned to the sorting section, if the second product is aggregated and falls on the swing sorting body, the second product is separated on the swing sorting body. However, there is a problem that it becomes difficult to carry out the sorting, resulting in poor selection. Therefore, it is conceivable to form the discharge case so that the discharge port side is wide toward the end and reduce the second product in a dispersed state in advance on the swing selection body. However, as shown in FIG. If you just formed a flared shape,
A space S which is a blind spot at the lower side in the rotation direction of the discharge blade which is deviated from the second object throwing direction Y by the discharge blade of the discharge case.
As a result, what is carried around by the discharge blades easily accumulates in the space S. The second product also contains debris, long straw, etc. Once it starts to accumulate, the debris, long straw, etc., get caught in the accumulated material, and the accumulation gradually increases, which only hinders the ejection action of the ejection blades. Without
It may cause clogging of the spiral cylinder.

Means for Solving the Problems Therefore, the present invention is a spiral body for reducing the second object, which is installed in the tubular body 19.
The discharge blade 20 is fixedly provided at the transfer end portion of 19a.
In a second product reducing device in which a second product discharge passage 23 in which a discharge port 22 faces above the swing selecting body 10 is formed in a discharge case 21 which covers the second product discharge passage 23, the second product discharge passage 23 is formed. Of the left and right side plates 21b, 21a of the discharge case 21
With reference to the rotation direction of the discharge blade 20 on the side facing 23, the starting end side of the side plate 21a located on the lower side in the rotation direction, that is, the discharge blade 20 side, is arranged so as to follow the rotation trajectory of the discharge blade 20. By extending toward the object discharge passage 23 side and then bending in the second object discharge direction, a biting protrusion P facing inward of the second object discharge passage 23 is formed at the starting end of the side plate 21a. The side plate 21a is opened so as to be farther from the end plate, that is, the side closer to the discharge port 22 than the side plate 21b on the opposite side, so that the width of the second object discharge passage 23 is increased from the start end portion to the end portion of the second object discharge passage 23. It is intended to solve the above-mentioned problems by constructing the shape so that it becomes wider toward the discharge port 23.

Action The 2nd product that has been lifted and conveyed by the 2nd product reduction spiral 19a is discharged by the discharge blade 20 and dropped from the discharge port 22 onto the rocking sorting body 10, but is formed in the discharge case 21. Further, since the width of the second material discharge passage 23 is configured so as to widen toward the discharge port 22 at the end portion of the second material discharge passage 23, the second material is returned in a widely dispersed state. It
For this reason, the No. 2 reduced product becomes a lump and is not reduced by being collected at a specific place on the rocking sorting body 10 and is dropped and reduced in a diffused state. It can be done well.

Further, although the second article discharge passage 23 of the discharge case 21 is configured such that the width of the second thing discharge passage 23 is widened toward the end, the start end side of the side plate 21a located on the lower side in the rotation direction of the discharge blade 20 becomes the rotation trajectory of the discharge blade 20. After extending toward the second article discharge passage 23 side along
By bending in the discharge direction of the product, a biting protrusion P is formed at the starting end of the side plate 21a. Therefore, the protrusion P holds the discharge blade 20 apart from the discharge blade 20. The object to be rotated is partitioned and divided, and the latter is once carried around by the discharge blade 20 and discharged again from the second product discharge passage 23, so that the second product is accumulated in the discharge case 21. Without getting stuck or clogged
The discharge reduction action of the second product is always performed smoothly and reliably.

Example A drawing-type threshing machine A mounted on a combine is shown in the drawings. Reference numeral 1 is a handling room formed between a handling room front side plate 1a having a grain culm supply port 1'a and a handling room rear side plate 1b having a culm outlet 1'b, and a handling barrel 2 is provided in the handling room 1. It is pivotally supported. A processing chamber 5 is provided on the opposite side of the feed chain 3 from the terminal end of the handling chamber 1 to the rear part of the machine body, and the long processing drum 4 is pivotally supported. 5a is a processing chamber receiving net, 5b is a processing case, 6 is a dust outlet of the processing chamber 5, 7 is a dust outlet of the handling chamber 1, 8 is a straw chain, and 9 is a cutter. Below the receiving net 1c of the handling chamber 1, a rocking sorter 1 including a non-perforated corrugated transfer body 10a and a granular leaking body 10b integrally connected to the tip of the corrugated transfer body 10a.
0 is provided. 11 is Karasu, 12 is the first spiral, 13 is 2
A spiral, 14 is a suction fan, 15 is a straw rack, and 16 is an auxiliary fan. Reference numeral 17 denotes a swing receiving plate obliquely provided between the handling room receiving net 1c and the swing selecting body 10, and the lower end of the inclination is a corrugated transfer body 10a.
The upper end and the inclined upper end are made to face below the fourth funnel R formed between the rear plate 1b of the handling chamber and the falling plate Q, respectively. Reference numeral 17a is a partition plate which is erected on the swing receiving plate 17, and the partition plate 17a prevents the second reduced product and the like from being biased to one side of the right and left sides, so that even distribution can be achieved over the entire surface. There is. Reference numeral 18 denotes a fried grain cylinder standing upright on the transfer end side of the No. 1 spiral 12, in which a spiral body 18a is installed, and although not shown, its upper end discharge port faces the grain tank. Reference numeral 19 is a second object reducing cylinder obliquely provided on the transfer end side of the No. 2 spiral 13 (the same side as the fried grain cylinder 18). Inside the cylinder 19, a discharge blade 20 is fixed at the transfer end portion. Two
The spiral 19a for reducing the food is internally provided. Discharge blade 2 above
0 is set to be larger than the diameter of the No. 2 reducing spiral 19a, and the lower end portion of the discharge blade 20 is at substantially the same angle as the spiral blade angle of the No. 2 reducing spiral 19a as shown in FIG. In addition, it has a structure in which it is inclined in a continuous manner, and the second object (especially long straw and scraps mixed in the second object) that has been spirally transferred inside the tubular object 19 is wrapped around the upper end of the tubular object 19. It is possible to smoothly and surely return without clogging the gap between the cylindrical body 19 and the second object reducing spiral body 19a.

Reference numeral 21 denotes a discharge case that covers the discharge blade 20, and is integrally connected to the cylindrical body 19. Inside the discharge case 21, a discharge port 22 is located above the rocking sorting body 10, and a second discharge passage 23 is formed. Are formed.

By the way, a discharge case forming the second object discharge passage 23.
Of the left and right side plates 21b, 21a of 21, the right side of the right side of the rotation direction of the discharge blade 20 on the side facing the second discharge passage 23 (the direction of the arrow in FIG. 2A) is the reference. The side plate 21a is a starting end side (discharging vane 20 side), that is, a portion that is continuous from the left side plate 21b is extended toward the second discharging passage 23 side along the rotation locus of the discharging blade 20 It is bent and extended in the discharge direction (the direction of the threshing side plate 2'described below), whereby the second product discharge passage 2 is provided at the starting end of the side plate 21a.
3 is formed with a biting protrusion P facing inward, and the side plate 21a is spread so as to move away from the side plate 21b on the opposite side toward the terminal end side (discharge port 22 side). As a result, the width of the second material discharge passage 23 is configured so as to widen toward the discharge port 22 at the end portion from the start end portion of the second material discharge passage 23.

On the other hand, the discharge case 21 integrated with the tubular body 19 is connected and fixed to the threshing side plate 2'in the vicinity of the rear side plate 1b mounting portion of the threshing side plate 2 ', and the lower part of the cylindrical body 19 is connected and fixed to the sorting air passage side plate 24 to remove the threshing. The side plate 2'and the sorting air duct side plate 24 are integrated with the robust cylinder 19 to enhance the strength and prevent distortion and deformation. Similarly, in the fried grain cylinder 18, the upper part is connected and fixed to the threshing side plate 2'and the lower part is connected and fixed to the sorting air passage side plate 24, respectively. It should be noted that the fried grain cylinder 18 and the second product reducing cylinder 19 may be integrally connected, whereby the reinforcing action of the side plate is further enhanced. 25 is a fixture such as a bolt.

The same spiral case 2 is provided at the bottom of the cylinder body 19 and the bottom of the fried food cylinder 18, respectively.
6, 26 'and the same transmission case 27, 27' are fixed. Also, each transmission case 27, 27 'is linked by a chain 28,
The driving force is introduced from the driving chain wheel 29 fixed to the shaft end of the second spiral 13.

The inner diameters of the second body reducing cylinder 19 and the fried food cylinder 18 are the same,
The spirals 19a and 18a to be installed are also the same, and only the length and the number of revolutions of the spirals 18a and 19a are different, respectively,
Coupled with the fact that the transmission cases 27, 27 ', etc. are the same, the same members can be used, which is advantageous in terms of cost and parts management. 30 is a chain cover.

In the above-mentioned configuration, the grain-falling grains that have now leaked from the receiving net 1c fall on the rocking sorting body 10 of the sorting unit, and are dispersed on the rocking sorting body 10 to form a layer and form a layer in front of the sorting air passage a. Will be sent in sequence. Then, the grain (fine grain) leaks from the grain leaking body 10b, is transferred to the one side of the machine by the first spiral 12, and then is stored in a grain tank (not shown) by the lifting cylinder 18. In addition, long straws and the like are further carried by the front straw 15 and discharged outside the machine.

On the other hand, the second ones such as cutting grains (including long straw and scraps)
Is dropped from between the straw racks 15 and is transferred to the one side of the machine body by the second spiral 13, then is lifted by the second object reducing spiral body 19a, and is discharged by the discharge blades 20 at the transfer end portion, It is returned from the discharge port 22 onto the swing selection body 10. By the way, since the width of the second material discharge passage 23 is configured so as to widen toward the discharge port 22 at the end portion of the second material discharge passage 23, the second material discharge passage 23 is dispersed in a wide range. Emitted from 22. For this reason, the No. 2 reduced product becomes a lump and is not reduced to a specific place on the rocking sorting body 10 and is dropped and reduced in a diffused state. Distributed selection.

In addition, in the present invention, the left and right side plates 21b of the discharge case 21 forming the second object discharge passage 23 are formed by expanding the width of the second object discharge passage 23 of the discharge case 21 in a divergent manner as described above. , 21a, the starting end side of the side plate 21a located on the lower side in the rotation direction (the direction of the arrow of FIG. 2A) of the discharge blade 20 on the side of the second discharge passage 23 (the discharge blade 20). Side) extends toward the second object discharge passage 23 side along the rotation locus of the discharge vane 20 and then bends in the second object discharge direction, so that the second object discharge passage is formed at the starting end of the side plate 21a. Since the bite-shaped protrusion P facing inward of 23 is formed, the second product does not stay in the discharge case 21 or become clogged.

That is, the second article discharge passage 23 of the discharge case 21 is shown in FIG.
As shown in FIG. 4, when the discharge blade 20 is simply divergent, as described above, a space S is formed in the lower side portion in the rotational direction of the discharge blade 20 which is deviated from the second object throwing direction Y by the discharge blade 20 of the discharge case. The second object is easily accumulated in S, but in the present invention, by forming the protrusion P at the starting end of the side plate 21a as described above, the space part as shown in FIG. 2 (B) is formed. In addition to eliminating S as much as possible, the projecting P part separates the thing thrown away from the discharge blade 20 from the thing that is about to be carried around by the discharge blade 20, and separates it, and the latter is surely held once by the discharge blade 20. By turning, it can be discharged again from the second object discharge passage 23. Therefore, the second product can be prevented from being accumulated or clogged in the discharge case 21, and the discharge reduction action of the second product can be always performed smoothly and reliably.

Incidentally, among the fourth grains such as grains and clam grains that have leaked through the processing chamber receiving net 5a, those falling on the receiving plate 17 are guided to the starting end side of the corrugated transfer body 10a while being diffused in the same manner as above. To be done.

Effects of the Invention With the above-described configuration, the present invention has the following effects.

That is, the width of the No. 2 discharge passage 23 formed in the discharge case 21 is configured to widen toward the discharge port 22 at the end portion from the start end portion, so that the No. 2 reduced product remains in a lump form and is oscillated and sorted. Since it does not fall in a specific place on the body 10 and is dropped and reduced in a diffused state, the swinging sorting body 10 can favorably perform the sorting action of the second reduced product.

In addition, although the width of the second object discharge passage 23 of the discharge case 21 is widened toward the end, 2 is provided at the starting end portion of the side plate 21a of the discharge case 21 located on the lower side in the rotation direction of the discharge blade 20.
Since the bite-shaped protrusion P facing the inside of the number discharge passage 23 is provided, the second number stays in the discharge case 21 and the discharge blade 20.
Therefore, the throwing action is not hindered and the second object discharge passage 23 is not clogged, so that the second object can be returned to the swing selection body 10 smoothly and reliably. For this reason, the adaptability of the wet material, which is easily adhered, can be significantly increased.

[Brief description of drawings]

FIG. 1 is a side view of a thresher equipped with the present invention, FIG. 2 (A) is a cross-sectional plan view of the same as above, FIG. 2 (B) is a cross-sectional plan view showing a comparative example of the main part, and FIG. Fig. 4 is a perspective view of the main part, Fig. 4 is a rear view of a thresher equipped with the present invention, and Fig. 5 is a fried cylinder and 2
FIG. 6 is a partially cutaway vertical side view showing the relationship with the food recycling spiral cylinder, and FIG. 6 is a rear view showing the joint structure of the No. 2 recycling cylinder with the rear side plate of the handling chamber and the threshing side plate. In the figure, 10 is a rocking sorting body, 19 is a cylindrical body, 19a is a second object reducing spiral body, 20 is a discharge blade, 21 is a discharge case, 21a and 21b are side plates forming a second product discharge passage, and 22 is a discharge. An outlet, 23 is a second product discharge passage, A is a thresher, and P is a protruding portion of the side plate 21a.

 ─────────────────────────────────────────────────── ─── Continuation of the front page Judgment panel Judgment chief Takao Ishikawa Judge Judge Fumio Fuji Judge Toshiko Otaka (56) References JP53-62659 (JP, A) Jpn. ) Actual development 57-20844 (JP, U) Actual development 61-74343 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A spiral 19a for reducing a second product, which is installed in a cylinder 19.
A discharge blade 20 is fixedly provided at the transfer end portion of the device, and a discharge case 21 covering the discharge blade 20 is formed with a second object discharge passage 23 with a discharge port 22 facing the upper side of the swing selecting body 10. In the second product reducing apparatus, the left and right side plates 21b, 21a of the discharge case 21 forming the second product discharge passage 23 are defined with reference to the rotation direction of the discharge blade 20 on the side facing the second product discharge passage 23. , The starting end side of the side plate 21a located on the lower side in the rotational direction, that is, the discharge vane 20 side is extended toward the second product discharge passage 23 side along the rotation locus of the discharge vane 20 and then the second product discharge By bending in the direction, a biting protrusion P facing inward of the second object discharge passage 23 is formed at the starting end of the side plate 21a, and the side plate 21a is opposite to the end side, that is, the discharge port 22 side. The side plate 21b of the No. 2 is widened so that the width of the second object discharge passage 23 becomes larger than that of the second object discharge passage 23. A second product reducing device for a threshing machine, characterized in that it is configured so as to widen toward the discharge port 22 at the end portion from the start end portion.