JPH09172836A - Reaping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reaping device capable of preventing a reaping blade, etc., from being damaged, reducing remaining uncut materials to be cut, improved in operating and useful for a combine harvester, etc., by installing saw-toothed cutting parts in blade bodies on the terminal sides facing to the dividing section of divided parts. SOLUTION: This reaping device is obtained by installing a cutting device 1 having long mutually superposed saw-toothed reaping blades 2 and 2 and receiving blades 3 and 3 and capable of cutting the object substances by the sliding operation of the reaping blades 2 and 2 on the receiving blades 3 and 3. The cutting device 1 comprises plural divided parts 1A and 1B divided corresponding to the reaping blades 2 and 2 divided in the longitudinal direction and saw-toothed cutting parts 11a-14a are installed in blade bodies 11-14 on the terminal sides facing to a dividing section of the divided parts 1A and 1B. Moreover, an auxiliary receiving blade is preferably installed between blade parts 13c and 14c of the blade bodies 13 and 14 on the terminal sides of the receiving blades 3 and 3 to vertically oppose to the blade bodies 13 and 14 on the terminal sides of the receiving blades 3 and 3 by sandwiching the blade bodies 11 and 12 on the terminal sides of reaping blades 2 and 2 therebetween. A guide body 4 for guiding the materials to be cut to the divided parts 1A and 1B is preferably provided on the admitting side of the materials to be cut of the dividing section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting device equipped in a combine harvester, a weed harvester or the like.

[0002]

2. Description of the Related Art Generally, this type of cutting device has a long sawtooth-shaped cutting blade which is formed by arranging a large number of blades each having a substantially acute-angled triangular shape continuously in the longitudinal direction, and also has a substantially acute-angled triangular shape. A long saw tooth shaped receiving blade formed by arranging a large number of shaped blades continuously in the lengthwise direction, these cutting blades and receiving blades are in contact with each other in a superposed manner, and The cutting blade is slid in a lengthwise direction with respect to the receiving blade to cut an object to be cut such as a grain culm or an aquatic plant.

By the way, the above-mentioned cutting blades and receiving blades are long, and those used for, for example, a 6-row harvesting combine have a particularly long overall length, so that they remain in this long state. When used, when the cutting blade slides with respect to the receiving blade, the cutting blade vibrates greatly and is liable to be damaged, so that the cutting blade is easily damaged.

Therefore, conventionally, the cutting blade is divided from the central portion in the length direction, and two cutting parts are formed by the cutting blade and the receiving blade overlapping with the cutting blade, and each cutting part is cut. By individually moving the blades with respect to the receiving blades by separate slide mechanisms, it is possible to cut an object to be cut without causing vibrations or bouncing of the cutting blades.

Further, when the divided parts are formed in this way, the cutting blade is divided from the blade bottom between the adjacent blade bodies, and when cutting is finished by the sliding motion of the cutting blade, the cutting blade is divided into the divided portions of each cutting blade. The facing edge side blades overlap each other with the blades of the receiving blades, and cut the object to be cut during both forward and backward movements of the cutting blade.

[0006]

[Problems to be Solved by the Invention] However, as described above,
When the cutting blade is divided in the lengthwise direction to form the divided parts, and when each divided part is individually slid, the end side blade body of the roughly acute-angled triangular shape facing the divided portion of each cutting blade is Since it is necessary to arrange each of the divided parts so that they do not interfere with each other when cutting is completed by the sliding operation, a large non-cutting area where the cut object is not cut is formed in the divided portion of each divided part. However, there was a problem in that the uncut material was left uncut.

A main object of the present invention is to reduce a non-cutting region where an object to be cut, which is generated between each end side blade body facing a divided portion of a divided part, is not cut, and to reduce uncut residue of the object to be cut. The point is to be able to.

[0008]

In order to achieve the above object, the invention according to claim 1 has, as shown in FIG. 1, an elongated saw-toothed cutting blade 2 and a receiving blade 3 which overlap each other. In a mowing device including a cutting device 1 for cutting by sliding motion of the cutting blade 2 with respect to the receiving blade 3, the cutting device 1 is
The divided part 1 is composed of a plurality of divided parts 1A and 1B which are divided in correspondence with the cutting blade 2 which is divided in the length direction.
End-side blades 11, 12, 13, 1 facing the divided portions of A and 1B
4 is provided with sawtooth cut portions 11a, 12a, 13a, 14a.

According to the second aspect of the invention, the divided parts 1A,
The end side blade bodies 11, 1 of the cutting blades 2, 2 between the divided portions of 1B
2 and vertically opposes the end side blade bodies 13 and 14 of the receiving blade 3,
Moreover, the auxiliary receiving blade 30 is provided between the blade portions 13c and 14c of the end side blade bodies 13 and 14.

According to the third aspect of the invention, the divided parts 1A,
As shown in FIGS. 2 and 3, in order to effectively eliminate uncut residue between the end side blade bodies 11 to 14 of 1B, as shown in FIG. 2 and FIG. On the side, divided parts 1A, 1 adjacent to the divided part
B is provided with a guide body 4 for guiding the object to be cut.

[0011]

According to the invention as set forth in claim 1, each end side blade body 11 facing the divided part of the plurality of divided parts 1A, 1B.
Since sawtooth cut portions 11a to 14a are formed in each of the sawtooth cut portions 11 to 14, the sawtooth cut portions 11a to 14a are formed.
The width of the end side blades 11 to 14 in the sliding direction can be reduced by a, and the divided parts 1A and 1B can be reduced.
Can be arranged so that the inter-blade distance H between the blades adjacent to each of the end side blade bodies 11 to 14 is smaller than that in the case where the cut portion is not provided, and therefore, the divided part 1A. , 1B, the non-cutting region where the object to be cut which is generated between the respective end side blade bodies 11 to 14 is not cut can be made small, and the uncut portion of the object to be cut can be reduced.

According to the second aspect of the invention, the end side blade body 1 of the cutting blades 2, 2 is provided between the divided parts of the divided parts 1A, 1B.
1, 12 sandwiches the end side blade bodies 13 and 14 of the receiving blade 3 vertically, and the blade portions 13c and 14 of the end side blade bodies 13 and 14
Since the auxiliary receiving blade 30 is provided between c, the divided parts 1A, 1
The object that cannot be cut by the end side blade bodies 11 to 14 facing the divided step B can be cut by the auxiliary receiving blade 30 and the end side blade bodies 11 and 12. Therefore, the divided part 1
It is possible to further reduce the non-cutting region that occurs between the end side blade bodies 11 to 14 of A and 1B, and to further reduce the uncut portion of the cut object.

According to the third aspect of the present invention, the object to be cut is divided into the divided parts 1A and 1B by the guide body 4 provided on the side of the divided part in the divided parts 1A and 1B where the divided object enters.
Since it can be guided to the blade side adjacent to the end side blade bodies 13 and 14 facing the divided portion of B, the object to be cut is not cut between the end side blade bodies 13 and 14 of the divided parts 1A and 1B. Even if a small non-cutting area is formed, this cutting object can be reliably cut by the blade adjacent to the end side blades 13 and 14, and therefore, the cutting object by the cutting device 1 is excellent. It is possible to perform various cutting operations and effectively eliminate uncut residue.

[0014]

FIG. 7 shows a combine as an embodiment of the reaping device according to the present invention. The combine A has a pair of left and right crawler type traveling devices B on the lower side.
The threshing section C is provided on the upper side, respectively, and the mowing section D provided with the cutting device 1 is arranged in the front part, and the grain culms mowed by the cutting apparatus 1 are conveyed to the threshing section C. I try to thresh.

As shown in FIGS. 1 to 3, the cutting device 1 has a large number of blade bodies 22 in the shape of a substantially acute triangle formed on the lower surface of a narrow and long cutting blade support plate 21 in the longitudinal direction. A long sawtooth-shaped cutting blade 2 formed by continuously pinning, and a large number of blade bodies 32 in the shape of a substantially acute triangle on the upper surface of a blade support plate 31 which is also thin and long. And a long saw-tooth shaped blade 3 which is continuously pinned to the cutting blade 2 and the blade 3.
And are vertically overlapped with each other, and the cutting blade 2 is slid with respect to the receiving blade 3 in a lengthwise direction at a predetermined pitch, thereby performing a work for cutting grain culms.
The inclined blade portions on both sides of the blade body 22 of the cutting blade 2 are formed in saw teeth as shown in FIG. Further, a receiving body 33 facing the lower surface of the blade receiving support plate 31 is arranged on the lower side of the blade 3.

[0016] In order to perform good cutting work of the grain culms without causing vibrations or boggling of the cutting blades 2 and the receiving blades 3 when the cutting blades 2 slide on the receiving blades 3. In the embodiment of each drawing, the cutting blade 2 and the receiving blade 3 are each divided from the central portion in the longitudinal direction, and the cutting blade 2 and the receiving blade 3 form two sets of left and right divided parts 1A and 1B. ing. That is, the cutting blade support plate 21 of the cutting blade 2 is divided into two right and left parts from the central portion in the length direction, and each of the divided support plates 21 is divided into two parts.
A plurality of blades 22 are continuously pinned with a constant pitch in the length direction of the blade 22, and the blade support plate 31 of the blade 3 is provided.
Is also divided into two on the left and right, and a plurality of blades 32 are continuously pinned at a constant pitch in the lengthwise direction of each divided support plate 31.

Further, the saw-tooth cut portion 11 is provided on the end side blade bodies 11 to 14 facing the divided end portions of the divided parts 1A and 1B.
a, 12a, 13a, 14a are formed, and most of the one-sided inclined blade portion is cut off. At this time, in the embodiment of each drawing, both the cutting blade 2 and the receiving blade 3 are left and right respectively. In the end side blade bodies 11 to 14, the divided end side inclined blade portions 11b, 12b, 13b, 14 among the inclined blade portions facing each other and having a substantially acute angle triangular shape are divided.
In the state where a part of its tip side is left, b is provided with a cutting surface orthogonal to the sliding direction toward the mounting base side of each of the end side blade bodies 11 to 14, and the inclined blade sections 11b to 14 are provided.
Most of b is cut off, and the cut surfaces form the cut portions 11a to 14a. Then, of these cutting portions 11a to 14a, the cutting portion 11 on the cutting blades 2 and 2 side
A saw tooth is provided on each of the cut portions 11a, 12a.
2a can be cut.

As described above, the divided parts 1A and 1B are
Blades 3, 3 located at the left and right ends of the divided part
End side inclined blade part 13 in the end side blade bodies 13 and 14 of
b and 14b, the cut portions 13a and 14a, respectively.
By forming the blades 3 and 3 in the divided parts 1A and 1B, the inter-blade distance between the blade body 32 adjacent to the end side blade body 13 and the blade body 32 adjacent to the end side blade body 14 is formed. The H can be arranged so as to be smaller than that without the cut portions 13a and 14a.

Further, the end side blade body 1 of the cutting blade 2 located at the left and right ends of the divided parts of the divided parts 1A and 1B.
In the divided edge side inclined blade portions 11b and 12b in 1 and 12,
By forming the respective cut portions 11a and 12a, the cutting blades 2 and 2 in the divided parts 1A and 1B are
The inter-blade distance H between the blade body 22 adjacent to the end side blade body 11 and the blade body 22 adjacent to the end side blade body 12 is the cut portion 11 described above.
It can be arranged so as to be smaller than the case where a and 12a are not provided.

Therefore, as described above, the division part 1
The cutting blades 2 and 2 and the receiving blades 3 and 3 in A and 1B are provided between the blade bodies 32 and 32 adjacent to the end side blade bodies 11 to 14, and between the blade bodies 2.
Since the distance H between the blades 2 and 22 can be arranged so as to be small, it is possible to arrange the blades adjacent to the end blades 11 and 12 and the end blades 13 to 14 facing the divided parts of the divided parts 1A and 1B. The non-cutting area where the resulting grain culms are not cut can be reduced, and the uncut area of this grain culm can be reduced.

Further, in the divided parts of the divided parts 1A and 1B, in the front part between the left and right facing parts of the end side blades 13 and 14 of the receiving blades 3 and 3, between the end side blades 13 and 14, respectively. The sharpened guide body 4 is provided for guiding the grain culm introduced to the blades 32, 32 side adjacent to the end side blade bodies 13, 14. The guide body 4 is attached to a weeding pipe 54 described later as shown in FIG.

When the guide body 4 as described above is provided, the end body 1 of each of the receiving blades 3, 3 is guided by the guide body 4.
Since the grain culm introduced between 3 and 14 can be guided to the side of the blades 32 and 32 adjacent to the end side blades 13 and 14, even if the end side blades 1 of the divided parts 1A and 1B are used.
Even if a small non-cutting area in which the grain culm is not cut is formed between 3 and 14, the grain culm can be reliably cut by the cutting blades 2 and the receiving blades 3 of the divided parts 1A and 1B. It is possible to effectively eliminate uncut residue of grain culms by the cutting device 1.

Further, in the embodiments shown in the respective drawings, a support pipe 51 extending forward is provided on the support pipe 5 disposed in the vehicle width direction below the mowing portion D of the combine A, and the tip thereof is provided. On the side, a tubular body 52 that extends in the vehicle width direction is provided,
The dividing cutting blade 2 is attached to a support body 53 protruding from the cylindrical body 52.
In addition to supporting a plurality of positions of each cutting blade support plate 21 in, the protruding pipes 54 extending forward are provided at a plurality of positions of the support pipe 5, and the dividing and receiving pipes are provided through these respective weed pipes 54. The blade 3 is designed to support a plurality of positions of each blade support plate 31. In addition, the divided end portions of each of these receiving blade support plates 31 that face each other are provided with the weeding pipe 54.
Are integrally connected to each other via a pair of left and right connecting plates 55 and connecting bolts 56.

2 and 3 at the ends of the divided cutting blades 2 in the divided parts 1A and 1B opposite to the divided side.
As shown by, a pair of left and right slide mechanisms 6 and 6 for sliding the cutting blades 2 back and forth with respect to the cutting blades 3 by a pitch P between the blade bodies 32 and 32 are slid. It is provided.

Each of these slide mechanisms 6 is supported by a circular driving body 61, which houses a rotating mechanism arranged on the lower side of the support pipe 5, and a rotation center O of the driving body 61, A disk-shaped actuating plate 63 having a displacement shaft 62 at a position displaced with respect to the portion O, and a support 51 extending from the support pipe 5 are rotatably supported via a pivot shaft 64, and radially outward. The two first and second arms 65, 66
And a connecting rod that is connected to the projecting tip side of the first arm 65 provided on the cylindrical body 67 via a shaft rod 68 and is connected to the displacement shaft 62 of the operating plate 63. 69 and each cutting blade support plate 2 that is rotatably supported on the protruding tip side of the second arm 66 and is provided for each cutting blade 2.
The rotor 70 is inserted in the insertion hole 21a formed in No. 1.

Then, the driving body 61 is driven to rotate the operating plate 63 about the rotation center portion O thereof, so that the connecting rod 69 is connected via the displacement shaft 62 projecting from the operating plate 63. Is moved forward and backward, the first arm 65 of the tubular body 67 is swung about the pivot shaft 64, and the second arm 66 is swung laterally in the left-right direction to move the second arm 66. Each cutting blade support plate 21 provided on each cutting blade 2 is slid to the left and right through a rotor 70 provided on the tip side of the arm 66, and each cutting blade side blade body 22 is set to each receiving blade side blade body. 1 is slid back and forth by an amount corresponding to the pitch P between blade bodies of FIG. 1, and each cutting blade side blade body 22 and each receiving blade side blade body 32 overlap with each other at the end of cutting, and each of these cutting blades is cut. The blade-side blade body 22 and each blade-side blade body 32 have an odor in either forward movement or double-action. Is also the cutting work of the culms is performed.

In the above embodiment, the cutting blade 2 and the receiving blade 3 are provided.
The cutting blade 2 is divided in the same manner as in FIGS. 1 to 3 except that the cutting blade 2 is divided in the lengthwise intermediate portion.
Is a state in which the pitch between the blade bodies 32 in the part facing the divided portion of the cutting blade 2 in the divided part is smaller than the pitch between the ordinary blade bodies 32 (for example, the state in which the end side blade bodies 13 and 14 in FIG. 1 are connected to each other). ), The cutting blades 2 and 2 and the receiving blade 3 are integrally formed.
A plurality of divided parts 1A and 1B may be formed by the respective cutting blades 2 and 2 and the overlapping blade portions overlapping each other.

Further, in the above embodiment, the cutting device 1
Was configured with the cutting blades 2 and 2 and the receiving blade 3,
In addition, as shown in FIGS. 4 to 6, the cutting blades 2 and 2, the receiving blade 3, and the auxiliary receiving blade 30 may be provided.

In the embodiment shown in FIGS. 4 to 6, the end side blade bodies 11 and 12 of the cutting blades 2 and 2 are sandwiched between the division parts of the division parts 1A and 1B, and the end side blade body of the receiving blade 3 is inserted. Tooth portions 13 of the end side tooth pairs 13 and 14 that face each other in the vertical direction.
An auxiliary receiving blade 30 having a substantially acute-angled triangle shape is provided between c and 14c, and both side inclined blade portions 30a and 30a of the auxiliary receiving blade 30 and the cut portions 11 of the end side blade bodies 11 and 12 of the cutting blades 3 and 3 are provided.
It is designed to cut the object to be cut with a, 12a,
Components having the same functions as those of the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.

In this embodiment, the receiving blade 3 is integrally formed without being divided in the lengthwise direction thereof, and the end side blade bodies 13, 1 of the portion facing the divided portion of the cutting blade 2 in the divided part.
4 is integrally formed into a roughly acute-angled triangular shape which is slightly larger than the ordinary blade 32, and is attached to the upper surface of the receiving blade support plate 31 with four pins. 12
Cut portions 11a, 12a of the blade are formed so as to be orthogonal to the slide direction from the tip of the blade body, and the cut portions 11a, 1
While making it possible to cut even at 2a, the auxiliary receiving blade 3
0 is formed in a substantially acute-angled triangular shape that is smaller than the end side blade bodies 13 and 14, and the end side blade bodies 13 and 14 in the receiving blade 3 are formed.
The uncut object is not cut between the inclined blades 13c and 14c and the cut portions 11a and 12a of the end side blade bodies 11 and 12 of the cutting blades 2 and 2, and the inclined blade portion 30a of the auxiliary receiving blade 30
30a and the cut portions 11a, 1 of the end side blade bodies 11, 12
It is designed to be cut between 2a.

With this configuration, the end blades 13, 14 of the receiving blade 3 are not reduced in strength and are not cut between the end blades 13, 14 and the end blades 11, 12. Since the object to be cut can be cut, it is possible to further reduce the non-cutting region generated between the end side blade bodies facing the divided portion of the divided part. Further, since the cutting blades 2 and 2 are sandwiched between the receiving blade 3 and the auxiliary receiving blade 30, even if the end side blade bodies 13 and 14 of the receiving blade 3 are divided as in the embodiment of FIG. It is possible to effectively prevent the insertion of straw or mud between the end side blade bodies 13 and 14.

Further, the auxiliary receiving blade 30 is integrally formed with guide pieces 30b, 30b facing the upper surfaces of the mounting bases of the end side blade bodies 11, 12 of the cutting blade 2, so that the split blade side of the cutting blade 2 can be formed. The vertical displacement of the cutting blade 2 is prevented, and the cutting blade 2 can smoothly enter the inside of the auxiliary receiving blade 30 when the cutting blade 2 slides. The auxiliary blade 30 is connected to the end blades 13 and 14 via a gap between the blades when the end blades 11 and 12 are closest to each other, or the auxiliary blade support plate 31 is stationary. It is connected to the side member.

In the above embodiment, the cutting blade 2 is formed by the cutting blade support plate 21 and the blade body 22 attached to the cutting blade support plate 21, and the receiving blade 3 is formed by the receiving blade support plate 31. And the blade body 32 attached to the receiving blade support plate 31,
The cutting blade support plate 21 and the blade body 22, and the receiving blade support plate 31 and the blade body 32 may be integrally formed.

In the above embodiment, the cutting device 1 is also provided.
Although the cutting device 1 is divided into two parts 1A and 1B, the cutting device 1 can also be divided into three or more divided parts. Further, the cutting device 1 can also be used for a weed reaper other than the combine A, for example, a weed reaper equipped with a weed cutting blade on a ship.

[Brief description of the drawings]

FIG. 1 is an enlarged plan view of a part of a mowing device which is a main part of the present invention.

FIG. 2 is a plan view showing the entire structure of the same reaping device with a part omitted.

FIG. 3 is a side view of the mowing device.

FIG. 4 is a partially enlarged plan view of the another reaping device.

5 is an explanatory diagram showing an operating state of FIG.

6 is a sectional view taken along line XX of FIG.

FIG. 7 is a side view of the combine shown as an application example of the harvesting apparatus.

[Explanation of symbols]

1 ... Cutting device, 1A, 1B ... Divided part, 11, 12 ...
End side blade body, 11a, 12a ... Cut portion, 2 ... Cutting blade, 3 ...
Receiving blade, 4 ... Guide body, 30 ... Auxiliary receiving blade.

Claims (3)

[Claims] 1. Elongated saw-tooth cutting blades (2) overlapping each other
And a cutting device (1) having a receiving blade (3) and performing cutting by sliding operation of the cutting blade (2) with respect to the receiving blade (3).
The cutting device (1) comprises a cutting blade (2) for cutting in a length direction.
A plurality of division parts (1A, 1B) corresponding to
And a saw-tooth cut portion (11a, 12a, 13a, 14a) is provided on the end side blade body (11, 12, 13, 14) facing the divided portion of the divided part (1A, 1B). Reaper. 2. The end blades (13, 13) of the receiving blade (3) sandwiching the end blades (11, 12) of the cutting blades (2, 2) between the split parts of the split parts (1A, 1B). 14) facing up and down,
And the blade portions (13c, 14) of the end side blade bodies (13, 14)
The reaping device according to claim 1, wherein an auxiliary blade (30) is provided between c). 3. A guide body (4) for guiding an object to be cut to a divided part (1A, 1B) adjacent to the divided part, on the side of the divided part (1A, 1B) intruding the object to be cut.
The harvesting device according to claim 1 or 2, further comprising: