JP6134620B2 - Receiving structure of threshing device - Google Patents

Description

  The present invention relates to a receiving network structure for a threshing apparatus such as a combine or a harvester.

  Threshing devices such as combine harvesters and harvesters are provided with a receiving net arranged along the lower side of the handling cylinder and processing cylinder, and a leakage hole is formed in the receiving net for grains thresh by the handling cylinder and processing cylinder. It is leaking from. As this type of receiving net, there are known crimp nets made by knitting wire rods and perforated plates with punched through holes, and in recent years, the use of perforated plates with excellent durability has increased ( For example, see Patent Document 1).

  However, the receiving net made of a perforated plate has a smoother surface than the crimp net, so that not only the grains are difficult to leak, but also the grain removal treatment of the branch leaf adhering grains and eared grains is not sufficiently performed. There was a problem. So, in patent document 1, while providing the resistor (projection body) on the surface side of the receiving net which consists of a perforated plate, while facilitating the leakage of a grain, the branch infarction adhering grain and the ear piece grain are reduced. .

JP 2008-212115 A

  However, on the surface side of the receiving net, wear occurs due to contact with the grains and stalks. Therefore, as in Patent Document 1, when a resistor is fixed to the surface side of the receiving net made of a perforated plate, There is a possibility that the fixed portion (for example, a welded portion) is worn and the support strength of the resistor is lowered.

The present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 is arranged along the lower side of the handling cylinder or the processing cylinder and is handled. In the threshing apparatus provided with a receiving net for letting the grain thresh by the cylinder or the processing cylinder through the leakage hole, the receiving net has an arc-shaped perforated plate whose surface side faces the handling cylinder or the processing cylinder, and the porous It is fixed to the rear surface side of the plate, and a resistor composed of a plate member facing the direction in which the plate surface is opposed to the rotational direction of the threshing drum or processing cylinder, the resistor, the plate surface of the plate member is a perforated plate A threshing device receiving net structure characterized in that it protrudes to the surface side of the perforated plate in contact with the lower end of the handling cylinder rotation or the lower end of the processing cylinder. .
The invention of claim 2 is a threshing apparatus comprising a receiving net that is arranged along a lower side of the handling cylinder or the processing cylinder and causes the grain threshed by the handling cylinder or the processing cylinder to leak from the leakage hole. The net includes an arc-shaped perforated plate whose front side faces the handling cylinder or the processing cylinder, and a resistor fixed to the back side of the perforated plate, and a part of the resistor is formed on the perforated plate. Rutotomoni from Moshita hole protruded on the surface side of the perforated plate, on the back side of the perforated plate, a plurality of frame members extending in the threshing drum rotary direction or the processing drum rotating direction in parallel form, between the frame members resistor It is the receiving net structure of the threshing device characterized by being fixed to the bridge shape .

According to the first aspect of the present invention, the resistor is fixed to the back side of the perforated plate, and a part of the resistor is projected to the front side of the perforated plate through the holes formed in the perforated plate. It is possible to avoid wear of the fixed portion of the body and maintain the support strength of the resistor.
According to the invention of claim 2 , since the resistor is fixed to the back surface side of the porous plate and a part of the resistor is protruded to the surface side of the porous plate through the holes formed in the porous plate, It is possible to avoid wear of the fixed portion of the body and maintain the support strength of the resistor. In addition, a plurality of frame members extending in the handling cylinder rotation direction or the processing cylinder rotation direction are provided in parallel on the back surface side of the perforated plate, and the resistor is fixed in a bridging manner between the frame members. Can be increased.

It is an internal side view of a threshing apparatus. It is an internal front view of a threshing apparatus. It is the surface side perspective view of the receiving net which concerns on 1st Embodiment. It is a back surface side perspective view of the receiving net concerning a 1st embodiment. (A) is the principal part longitudinal cross-sectional view of the receiving net which shows the attachment or detachment structure of a resistor, (B) is the principal part longitudinal cross-sectional view of the receiving net which shows the protrusion amount adjustment structure of a resistor. (A) is a cross-sectional view of the main part showing a structure for fixing the receiving net to the frame member, (B) is a perspective view of the main part of the receiving net showing a case where the resistors are individually fixed, and (B) is two resistors. It is a principal part perspective view of a receiving net which shows the case where it tightens together. (A) is the surface side perspective view of the receiving net which concerns on 2nd Embodiment, (B) is the back surface side perspective view of the receiving net which concerns on 2nd Embodiment. (A) is the surface side perspective view of the receiving net which concerns on 3rd Embodiment, (B) is the back surface side perspective view of the receiving net which concerns on 3rd Embodiment. It is the surface side perspective view of the receiving net which concerns on 4th Embodiment. It is a surface side perspective view of the receiving net which concerns on 5th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes a threshing device provided in a combine. The threshing device 1 includes a threshing feed chain 2 that sandwiches a stalk base and conveys it backward, and a threshing feed chain 2. A handling chamber 3 that introduces the tip side of the stem to be conveyed, and a handle that is rotatably housed in the handling chamber 3 and that handles the grain from the tip side of the stem with a plurality of teeth 4a provided on the outer periphery. A barrel 4, a receiving net 5 that is arranged along the lower side of the handling cylinder 4, and that causes the grain threshed by the handling cylinder 4 to leak into the sorting chamber 6 through the leakage hole 5 a, and leakage from the receiving net 5 The processing chamber 7 that accepts the processed product that has reached the end of the processing chamber 3 without being rotated, and the processing chamber 7 is rotatably mounted in the processing chamber 7, and a plurality of processing teeth 8 a provided on the outer peripheral portion are used to dispose the grains in the processed product. The processing cylinder 8 to be made into a single grain, and the processing cylinder 8 are arranged along the lower side of the processing cylinder 8 and the processing cylinder 8 leaks the cereal grains. A second receiving net 9 that leaks to the sorting chamber 6 through a hole (not shown), an oscillating sorter 10 that oscillates and sorts the grains that have leaked into the sorting chamber 6, and a sorter wind. A compressed air fan 11, a first spiral 12 for collecting the selected first thing, a whipping cylinder 14 for lifting and conveying the collected first thing to the grain tank 13, and a second for collecting the second thing The spiral 15, the second reduction path (not shown) for reducing the recovered second product onto the rocking sorter 10, the dust exhaust fan 16 for discharging wastes such as chopped waste to the outside of the machine, and the threshed product A waste chain 17 that transports waste and a cutter 18 that shreds the waste are configured.

  As shown in FIGS. 3 and 4, the receiving net 5 is formed using an arc-shaped perforated plate 5 b in which a large number of leakage holes 5 a are punched. In the perforated plate 5b of the present embodiment, a large number of substantially square leakage holes 5a are arranged in the direction of rotation of the cylinder and the axis of rotation of the cylinder, but the shape and number of the leakage holes 5a are the types of crops to be harvested, etc. It can be changed as appropriate according to the situation. In the present embodiment, considering the maintainability, the receiving net 5 is divided into a plurality of perforated plates 5b. However, the presence / absence of division and the number of perforated plates 5b can be arbitrarily changed. .

  A plurality of partition plates 5c extending in the rotation direction of the cylinder are projected in parallel on the surface side of the porous plate 5b (the surface facing the cylinder 4). These partition plates 5c promote the grain singulation effect of the handling cylinder 4 by adjusting the flow of the processed material in the handling chamber 3 (in the direction of the handling cylinder rotation axis). In addition, a plurality of frame members 5d extending in the rotation direction of the barrel are projected in parallel on the back surface side of the perforated plate 5b, and the strength of the receiving net 5 is ensured by these frame members 5d.

  The receiving net 5 is provided with a resistor 20 that promotes the leakage of the grain by giving an appropriate resistance to the processed material in the handling chamber 3 and reduces the branch-breast-attached grains and the ear-cut grains. The resistor 20 is fixed to the back surface side of the porous plate 5b, and a convex portion 20a that is a part of the resistor 20 protrudes to the front surface side of the porous plate 5b through the leakage hole 5a of the porous plate 5b. According to such a resistor 20, the fixed portion for the porous plate 5 b can be arranged on the back surface side of the porous plate 5 b while giving resistance to the processed material on the front surface side of the porous plate 5 b. It is possible to avoid the fixed portion from being worn by contact with the object to be processed, and to maintain the support strength of the resistor 20 over a long period of time. Moreover, in this embodiment, since the convex part 20a of the resistor 20 was protruded to the surface side of the porous plate 5b through the leakage hole 5a of the porous plate 5b, the convex part 20a of the resistor 20 was made to pass through the porous plate 5b. There is no need to separately form a hole for projecting to the front surface side.

In the present embodiment, when the convex portion 20a of the resistor 20 is projected from the leakage hole 5a, the convex portion 20a is disposed at the lower end of the leakage barrel 5a on the side of the handling cylinder rotation. In FIG. 5, the handling cylinder 4 is configured to rotate from left to right. According to such a resistor 20, resistance can be imparted to the grain at the lower end of the handling cylinder rotation of the leakage hole 5 a, and the leakage of the grain in the leakage hole 5 a can be promoted.

  Next, a specific shape and fixing structure of the resistor 20 will be described with reference to FIGS.

As is apparent from FIG. 3 , the resistor 20 of the present embodiment is configured by a plate member whose plate surface faces in a direction opposite to the rotation direction of the handling cylinder 4 . Specifically, the resistor 20 is formed of a U-shaped plate member as a whole, having a bent portion that becomes the fixed portion 20b at both ends and a plurality of convex portions 20a on one side of the intermediate portion. Yes. The length of the resistor 20 corresponds to the interval between the frame members 5d, and the number and positions of the convex portions 20a correspond to the number and positions of the leakage holes 5a formed between the frame members 5d. That is, the resistor 20 of the present embodiment is fixed in a bridging manner between the frame members 5d on the back surface side of the perforated plate 5b, and a convex portion 20a that is a part of the resistor 20 is formed on the perforated plate 5b via the leakage hole 5a. It protrudes to the surface side. As is apparent from FIG. 5, the surface of the perforated plate is in a state where the plate surface of the plate material is in contact with the lower end of the treatment cylinder rotating lower end or the lower end of the processing cylinder rotating of the leakage hole formed in the perforated plate. Protruding.

  In the present embodiment, when the resistor 20 is fixed to the frame member 5d, bolt insertion holes 20c and 5e are formed in the fixing portion 20b and the frame member 5d of the resistor 20, and the bolt 21 and the nut 22 inserted through the holes are inserted. The resistor 20 is fixed to the frame member 5d. If it does in this way, the welding distortion at the time of fixing by welding can be avoided, and there also exists an advantage that attachment / detachment exchange of the resistor 20 according to wear etc. becomes possible (refer to (A) of Drawing 5).

  Further, as shown in FIG. 5B, the direction in which the resistor 20 is attached to the frame member 5d can be changed as appropriate. Further, if the bolt insertion hole 5e of the frame member 5d (or the bolt insertion hole 20c of the fixed portion 20b) is a long hole, the protruding amount of the convex portion 20a can be adjusted.

  Further, in changing the mounting direction of the resistor 20 with respect to the frame member 5d, as shown in FIG. 6C, the fixing portions 20b of the adjacent resistors 20 are overlapped, and the common bolt 21 and nut 22 are used. It can also be fixed to the frame member 5d together. In this way, the number of bolts 21 and nuts 22 can be reduced as compared with the fixing structure shown in FIG.

  According to the present embodiment configured as described, the threshing apparatus including the receiving net 5 that is arranged along the lower side of the handling cylinder 4 and causes the grain threshed by the handling cylinder 4 to leak from the leakage hole 5a. 1, the receiving net 5 includes an arc-shaped perforated plate 5b whose front side faces the handling cylinder 4, and a resistor 20 fixed to the back side of the perforated plate 5b. A part of the resistor 20 is provided. Since the protrusion is made to protrude to the surface side of the porous plate 5b through the hole (leakage hole 5a) formed in the porous plate 5b, the fixing portion 20b of the resistor 20 is avoided from being worn, and the resistor 20 is supported. The strength can be maintained.

  In the present embodiment, a part of the resistor 20 is protruded to the surface side of the porous plate 5b through the leakage hole 5a formed in the porous plate 5b. There is no need to separately form a hole for projecting to the surface side of 5b.

  Moreover, in this embodiment, since a part of resistor 20 has been arrange | positioned at the handling cylinder rotation lower side of the leakage hole 5a, the leakage of the grain in the leakage hole 5a can be accelerated | stimulated.

  Further, in the present embodiment, a plurality of frame members 5d extending in the rotation direction of the barrel are provided in parallel on the back surface side of the perforated plate 5b, and the resistor 20 is fixed in a bridging manner between the frame members 5d. The support strength of the body 20 can be increased.

  Moreover, in this embodiment, since the resistor 20 was comprised with the plate member, the processing cost of the resistor 20 can be suppressed.

  Next, receiving networks according to second to fifth embodiments of the present invention will be described with reference to FIGS. However, about the same structure as the said embodiment, description of the said embodiment is used by using the same code | symbol as the said embodiment.

  As shown in FIG. 7, the receiving net 5B according to the second embodiment of the present invention is different from the first embodiment in that the fixing portion 20b of the resistor 20 is fixed to the frame member 5d by welding. doing. According to the receiving net 5B of the second embodiment as described above, the resistor 20 cannot be attached / detached, but there is an advantage that bolts and nuts are unnecessary.

  In addition, as shown in FIG. 8, the receiving net 5C according to the third embodiment of the present invention includes a point where the fixing portion 20b of the resistor 20 is fixed to the frame member 5d by welding, and the resistor 20 The point from which the convex part 20a is arrange | positioned at the handling cylinder rotation upper side of the leakage hole 5a is different from the said 1st Embodiment. According to the receiving net 5C of the third embodiment as described above, the resistor 20 cannot be detached, but there is an advantage that bolts and nuts are not necessary. Moreover, since the convex part 20a of the resistor 20 is arrange | positioned at the handling cylinder rotation upper side of the leakage hole 5a, the leakage of the grain in the leakage hole 5a can be suppressed compared with 1st Embodiment. .

  Further, as shown in FIG. 9, the receiving net 5D according to the fourth embodiment of the present invention is that the convex portion 20a of the resistor 20 is arranged so as to partition the leakage hole 5a into two. This is different from the first embodiment. According to the receiving network 5D of the fourth embodiment as described above, the scale of the leakage hole 5a can be changed using the resistor 20.

  In addition, as shown in FIG. 10, the receiving net 5E according to the fifth embodiment of the present invention includes a point in which the convex portion 20a of the resistor 20 is disposed only in a part of the leakage holes 5a, and a part of the part. The point from which the convex part 20a of the resistor 20 arrange | positioned at the leak hole 5a is arrange | positioned in the spiral form in the whole receiving net | network 5 is different from the said 1st Embodiment. According to the receiving net 5E of the fifth embodiment as described above, not only can the grain leakage in the receiving net 5E be partially adjusted, but also the flow of the processed material in the handling chamber 3 using the resistor 20 (Cylinder rotation axis direction) can be adjusted.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the claims. For example, the receiving network structure of the present invention can be applied not only to the receiving network of the handling room but also to the receiving network of the processing chamber.

DESCRIPTION OF SYMBOLS 1 Threshing apparatus 3 Handling chamber 4a Teeth 4 Handling barrel 5 Receiving net 5a Leakage hole 5b Perforated plate 5d Frame member 6 Sorting chamber 7 Processing chamber 8a Processing tooth 8 Processing barrel 9 Second receiving net 20 Resistor 20a Protruding part 20b Fixing Part

Claims (2)

In the threshing apparatus provided with a receiving net that is arranged along the lower side of the handling cylinder or the processing cylinder and causes the grain threshed by the handling cylinder or the processing cylinder to leak from the leakage hole,
The receiving network is
An arc-shaped perforated plate whose front side faces the handling cylinder or processing cylinder;
It is fixed to the back surface side of the perforated plate, and comprises a resistor composed of a plate material whose plate surface faces a direction opposite to the rotation direction of the handling cylinder or the processing cylinder ,
The resistor, the plate surface of the plate material is protruded to the surface side of the porous plate in contact with state thresher rotation downstream side end portion or the processing drum rotation downstream side end portion of the Moshita holes formed in the perforated plate A receiving net structure for a threshing device. In the threshing apparatus provided with a receiving net that is arranged along the lower side of the handling cylinder or the processing cylinder and causes the grain threshed by the handling cylinder or the processing cylinder to leak from the leakage hole,
The receiving network is
An arc-shaped perforated plate whose front side faces the handling cylinder or processing cylinder;
A resistor fixed on the back side of the perforated plate,
A portion of the resistive element antibodies to protrude from Moshita holes formed in the perforated plate on the surface side of the porous plate Rutotomoni,
A threshing apparatus, wherein a plurality of frame members extending in a handling cylinder rotation direction or a processing cylinder rotation direction are provided in parallel on the back surface side of the perforated plate, and a resistor is fixed between the frame members. Receiving network structure.

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