JP3887590B2 - General purpose combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a configuration of a general-purpose combiner, and particularly to a configuration of a supply port from a feeder house (conveying device) at the rear of a reaping device to a threshing unit.
[0002]
[Prior art]
Conventionally, a general-purpose combine has been known in which two rotors having the same diameter are arranged in the left-right direction in a threshing device and are arranged side by side in parallel in the front-and-rear direction with respect to the aircraft traveling direction.
This general-purpose combiner has a reaping device projecting forward from the traveling device, and the culm harvested by the reaping device is conveyed rearward by the conveying device and supplied to the threshing device. Under each rotor, a receiving net configured in a semicircular shape in a side view is arranged along the rotor lower side surface shape, and threshing is performed by rotation of the rotor.
The supply port to the threshing device is arranged in front of one side portion of the front rotor, and the discharge port from the threshing device is arranged in the rear side of one side portion of the rear rotor, and is put into the threshing device. Is gradually conveyed to the other side while being threshed by the front rotor, and transferred from the other side of the front rotor to the other side of the rear rotor.
And it is conveyed to one side gradually, being threshed again by the rear rotor. That is, one reciprocation is performed by the rotor. The waste after degranulation is discharged from one side of the rear rotor to the discharge port. Grains, swarf and garbage etc. that have leaked through the receiving net are sorted by a sorting device arranged below the threshing device, swarf and dust etc. are discharged from the rear of the machine, and the fine grains are in the Glen tank above the threshing device It was configured to be stored in.
A beater for forcibly supplying the harvested culm to the threshing measure is arranged between the rear part of the transporting device for transporting the culm harvested by the reaping device and the front rotor. For example, it is a technique shown in Japanese Patent Laid-Open No. 2001-16950.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-16950.
[0004]
[Problems to be solved by the invention]
However, in the conventional combine, when the cereals thrown into the threshing device from the supply port return to the supply port side by the rotation of the rotor, the cereals clog in the beater. It may occur. Therefore, in the above-described technique, the beater is configured to be detachable so that clogging can be removed. However, since the operation of detaching requires removing the belt of the drive unit and removing the bolts, it is troublesome. It was.
[0005]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
[0006]
The threshing apparatus according to claim 1, wherein a conveying device (9) for conveying cereals is arranged at the rear part of the reaping device (8), and a screw-type rotor is arranged in the left-right direction at the rear part of the conveying device (9). In the combine comprising (18), the transport device (9) has a feeder conveyor (11) in the feeder house (10), and the rear end of the feeder house (10) is threshing In communication with the supply port (12) to the device (18), the front of the supply port (12) has a rotation axis in the horizontal direction in order to forcibly send the cereal to the threshing device (18). A cylindrical beater (34) is arranged, and the threshing device (18) has a first rotor (21) and a second rotor arranged in parallel in the front-rear direction with respect to the advancing direction of the machine body with the axial center in the horizontal direction. A rotor (22), the first rotor (21) and the second row Screws (21a, 22a) are provided around (22), the rotation direction of the beater (34) is the same as the rotation direction of the first rotor (21) on the front side, and is supplied into the threshing device (18). The upper part of the supply port (12) between the beater (34) and the first rotor (21) is prevented in order to prevent the cereal cereal that flows back from the supply port (12) to the beater (34) side. A supply guide plate (32) to be closed is provided, and the lateral width of the supply guide plate (32) is substantially equal to the inner width of the supply port (12), and the supply guide plate (32) has a threshing device (18 in a side view). ) An inward extending portion (32a) is provided, and the extending portion (32a) extends toward a position where the first rotor (21) and the beater (34) are closest to each other.
[0007]
According to a second aspect, in the general-purpose combine according to the first aspect, an extension plate 33 extending downward is attached to the lower portion of the extension portion 32a.
[0008]
According to a third aspect, in the general-purpose combine according to the first or second aspect, a cleaning port 66 a is formed in the supply plate 66 disposed below the beater 34.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the invention will be described.
[0010]
1 is an overall side partial sectional view of a general purpose combine, FIG. 2 is also an overall planar partial sectional view, FIG. 3 is a side sectional view of a threshing device and a sorting device, and FIG. 4 is a side view of a front part of a machine frame. 5 is a side view of the supply port when the supply guide plate is not extended by the extension plate.
[0011]
6 is a side view of the supply port when the supply guide plate is extended by the extension plate, FIG. 7 is a plan view of the same, FIG. 8 is a side view of the vicinity of the supply port, and FIG. 9 is a vicinity of the supply port of another embodiment. It is a side view.
[0012]
A general-purpose combine in which two rotors 21 and 22 are arranged on the threshing device 18 so as to be laterally lateral to the traveling direction will be described.
As shown in FIGS. 1 to 3, the general-purpose combiner arranges a machine frame 13 on the crawler type traveling device 1, and stores a sorting device 19, a threshing device 18, an engine 48 and the like on the machine frame 13. The engine room 49 is placed, the glen tank 30 is disposed on the threshing device 18, and a discharge auger 40 for discharging the grain stored in the glen tank 30 from the rear side of the machine body to the front is provided. Yes.
Further, a reaping device 8 is disposed in front of the machine frame 13, and a rear end of the reaping device 8 and a front entrance of the threshing device 18 are communicated by a feeder house 10.
[0013]
A platform 2 is provided at the front portion of the feeder house 10, and a lateral feed auger 3 is arranged in the left-right direction at a right angle to the traveling direction on the platform 2, and a cutting blade 4 is laterally disposed at the lower front portion of the lateral feed auger 3. It is installed.
[0014]
The weed boards 7 and 7 are provided at the front ends of the left and right sides of the platform 2, and the rear part of the support arm 6 that supports the reel 5 is pivotally supported at the left and right ends of the rear part of the platform 14. On the side, a power transmission mechanism including a reel rotation driving belt and pulleys is provided. The reel 5 is moved up and down by a hydraulic cylinder as an actuator interposed between the support arm 6 and the platform 2.
[0015]
A conveying device 9 is arranged between the reaping device 8 and the threshing device 18, and the conveying device 9 is provided with a feeder conveyor 11 in the feeder house 10, and is slightly in the traveling direction from the center of the rear portion of the platform 2. The front end of the feeder house 10 is communicated with the screw feed end position of the lateral feed auger 3 on the left side. The rear end of the feeder house 10 communicates with the supply port 12 to the threshing device 18, and a cylindrical beater 34 having a rotation axis in the horizontal direction is disposed in front of the supply port 12, The straw is forcibly sent to the threshing device 18.
[0016]
The rear portion of the feeder house 10 is supported by the machine frame 13 so as to be rotatable up and down, and a hydraulic cylinder (not shown) is interposed between the lower surface of the feeder house 10 and the machine frame 13 so as to cut the cutting device 8. Can be moved up and down. Further, a cabin 17 containing a driver's seat 15 and a steering handle 16 is disposed above the feeder house 10 and the beater 34, and the cabin 17 is disposed at an upper position in front of the center of the left and right sides of the fuselage so that visibility is good. As a result, it is easy to confirm the cutting operation, and it is possible to get on and off from both the left and right sides.
[0017]
The feeder house 10, the beater 34 and the supply port 12 are provided closer to one side (left side) in the traveling direction of the machine body, and the supply port 12 is arranged at the left front portion of the first rotor (front rotor) 21. Then, the cereals are conveyed to the right by the rotation of the first rotor 21 of the threshing device 18.
[0018]
As described above, the cereals fed into the threshing apparatus by the beater are conveyed while being threshed by the rotation of the rotor, but when the carried cereal returns to the supply port side by the rotation of the rotor, In some cases, cereals were clogged or shed.
Accordingly, in order to prevent the cereal straw conveyed in the threshing device 18 from flowing backward from the supply port 12 toward the beater 34, as shown in FIGS. 4, 5, and 7, the beater 34 and the first rotor are arranged. A supply guide plate 32 is provided between the guide plate 32 and the left and right widths of the guide plate 32 substantially coincide with the inner width of the supply port 12, and the supply guide plate 32 is positioned on the upper side so as to close the upper portion of the supply port 12. Are arranged to be. In the side view, the supply guide plate 32 has an upper portion formed in an inverted L shape, and a lower portion thereof is bent in a “f” shape toward the inside of the threshing device 18 and provided with an extension portion 32a. the extending portion 32a are extended toward the position where the capital of the first rotor 21 and the beater 34 are closest.
The upper part of the supply guide plate 32 is fixed to the machine frame 13 and is guided by the supply guide plate 32 so that the cereals conveyed from the upper side to the lower side by the first rotor 21 flow inside the threshing device 18. Thus, it is configured not to flow from the supply port 12 to the beater 34 side.
[0019]
Therefore, after the grain mash harvested from the feeder house 10 is sent to the supply port 12 and forcibly supplied into the threshing apparatus 18 by the beater 34, the grain mash is shattered to the right by the rotation of the first rotor 21. In the process of being conveyed, the cereal is guided to the inside of the threshing device 18 by the supply guide plate 32 in the vicinity of the supply port 12, so that the cereal can be prevented from returning from the supply port 12 to the beater 34. The cereal can be smoothly fed into the threshing device 18 without clogging the cereal in the vicinity of the supply port 12.
[0020]
In addition, in crops such as rice that are not easily shattered, the dust feed valves 59, 59,... Described later are often operated to the closed side. When the dust feed valves 59, 59... Are operated to the close side in this way, the cereals conveyed by the first rotor 21 may return to the beater 34 side by the dust feed valves 59, 59. Get higher.
In order to solve this problem, an extension plate 33 is provided below the supply guide plate 32, and the extension guide 33 extends the supply guide plate 32 obliquely downward so that the protruding length can be adjusted. It is configured. That is, the extension plate 33 is configured to be extendable with respect to the supply guide plate 32 and fixed on both sides. As shown in FIGS. 5 to 7, the extension plate 33 is formed so that the lateral width thereof is substantially the same as that of the supply guide plate 32, and the extension plate is formed on the surface of the extension portion 32 a of the supply guide plate 32 on the beater 34 side. 33 is fastened by a plurality of bolts 37 and the like, and both left and right ends of the extension plate 33 are bent toward the beater 34, and the left and right ends are fastened and fixed to the left and right side surfaces of the extension portion 32a by a plurality of bolts 38 and the like. ing. A plurality of mounting holes 33a are provided in the bent left and right ends of the extension plate 33 at predetermined intervals in the vertical direction, and the fixing positions of the mounting holes 33a, 33a, 33a and the extending portion 32a are changed. Thus, the position of the extension plate 33 can be adjusted.
For example, in this embodiment, the extension plate 33 is provided with three mounting holes 33a, 33a, 33a in the vertical direction, and when the supply guide plate 32 does not need to be extended downward, FIG. As shown in FIG. 5, the extension plate 33 may be attached to the extension portion 32a using the two lower attachment holes 33a and 33a.
Further, when it is necessary to extend the supply guide plate 32 downward in order to thresh crops that are difficult to thresh, as shown in FIG. 6, the upper two mounting holes 33a and 33a are used to extend. By attaching the extension plate 33 to the exit portion 32a, the extension plate 33 is extended from the supply guide plate 32, and the cereals conveyed by the rotary 21 on the vertical surface of the extension plate 33 are guided inside the threshing device 18. It becomes possible. However, the mounting hole 33a may be a long hole and can be finely adjusted.
By comprising in this way, the return of the cereal to the beater 34 side can be further reduced, and clogging in the beater 34 can be prevented.
[0021]
The beater 34 is housed in the front upper part of the machine frame 13, and an outlet 64 for taking out the beater 34 is opened on the left side of the machine frame 13. Then, a shaft support plate 65 is screwed with a bolt or the like so as to cover the take-out port 64, and the rotation shaft of the beater 34 is supported on the front and rear center portion of the shaft support plate 65. By removing the bolt with which the shaft support plate 65 is screwed and removing the shaft support plate 65 from the machine frame 13, the beater 34 can be extracted from the outlet 64 and maintenance can be performed.
[0022]
Further, as shown in FIGS. 4 and 8, a maintenance cleaning port is provided in the middle of the front and rear of a supply plate 66 disposed on the rear extension of the feeder house 10 and inclined below the beater 34. 66a is opened, and the cover body 67 which can open and close this cleaning port 66a is provided. That is, a rotation shaft 68 is fixed in the left-right direction at the front portion of the cleaning port 66a, both ends of the rotation shaft 68 are pivotally attached to the supply plate 66, and a lid 67 supports the rotation shaft 68 as a rotation fulcrum. Is rotated downward. Further, an operation lever 69 is provided as an operation member below the lid body 67, and the operation lever 69 is rotatable to the machine frame 13 by a pivot shaft 71 disposed below the lid body 67. It is pivotally supported by.
A cam 70 is fixed to the tip of the operation lever 69. That is, the operation lever 69 and the cam 70 are arranged in a straight line, and the middle part is pivotally supported by the pivot shaft 71, and the distance from the pivot shaft 71 to the tip of the cam 70 is longer than the distance from the pivot 70 to the tip of the cam 70. It can be operated without the need for great force. The tip of the cam 70 is brought into contact with the lower surface of the rear portion of the lid body 67 and the operation lever 69 is rotated, whereby the lid body 67 is operated to open and close the cleaning port 66a.
[0023]
In such a configuration, when the operation lever 69 is rotated upward, the cam 70 is detached from the lower surface of the lid body 67 and there is no support, and the lid body 67 is rotated downward to open the cleaning port 66a. be able to. On the contrary, when the operation lever 69 is rotated downward with the lid 67 rotated upward and the cleaning port 66a closed, the lid 67 is lifted and fixed (locked) by the cam 70, and the cleaning port 66a is in a closed state. Since the normal lever 69 is rotated downward, the cleaning port 66a is closed.
Therefore, when clogging occurs in the beater 34, the cleaning port 66a is opened, and the cereal grains on the supply plate 66 can be easily removed, so that maintainability is improved. Further, since the lid 67 is fixed by the cam 70 without being detached from the supply plate 66, the opening and closing operation of the cleaning port 66a can be performed even in a narrow place.
[0024]
Moreover, the opening / closing structure of the lid 67 may be configured using a link instead of a cam. As shown in FIG. 9, the operation lever 72 and the lid body 67 are connected by two links, and the operation of the operation lever 72 is transmitted to the lid body 67 via the link. . That is, the rear portion of the lid 67 is connected to one end of the first link 73, the other end is connected to the second link 74, and the second link 74 is fixed to the operation lever 72. The operation lever 72 is pivotally supported on the machine frame 13 by a pivot shaft 75 disposed at the front lower side of the lid 67. Thus, when the operation lever 72 is rotated downward, the links 73 and 74 are extended, the lid 67 is lifted and fixed, and the cleaning port 66a is closed. Conversely, when the operation lever 72 is rotated upward, the link 73.74 is bent and contracted, the lid 67 is rotated downward, and the cleaning port 66a is opened.
Therefore, as in the above-described embodiment, when clogging occurs in the beater 34, the cleaning port 66a can be opened to easily remove the cereals on the supply plate 66, and the maintainability is improved. Further, since the lid 67 is fixed by the links 73 and 74 without being detached from the supply plate 66, the cleaning port 66a can be opened and closed even in a narrow place.
[0025]
As shown in FIG. 3, the threshing device 18 includes a first rotor 21, a second rotor 22, receiving nets 23 and 24, and the like, and is accommodated in the upper part of the machine frame 13. The first rotor 21 and the second rotor 22 are configured in substantially the same shape, and screws 21a and 22a having a plurality of teeth not shown are provided on the outer periphery of the cylinder, and the axis is horizontally horizontal. It is directed in the direction and arranged in parallel in the front-rear direction.
[0026]
Receiving nets 23 and 24 are disposed below the first rotor 21 and the second rotor 22, respectively, and upper covers 35 and 36 are disposed above the first rotor 21 and the second rotor 22, respectively. And a rear rotor chamber.
In addition, the rear part of the right side of the receiving net 23 below the first rotor 21 is inclined in a gentle arc shape in the front, rear, and rear height, and is extended toward the tangential direction of the upper and outer circumferences of the second rotor 22 to form a communication part 23a. In addition, the rear end of the communication portion 23 a extends to the vicinity of the front end portion of the rotation locus of the second rotor 22. Further, a discharge port 24 a is opened at the left rear portion of the receiving net 24.
[0027]
Further, dust feeding valves 59, 59,... Are provided on the inner peripheral surface of the upper part of the upper cover 35, 36, which is formed horizontally, at appropriate intervals in the left-right width direction. It is pivotally supported about a pivoting point in the vertical direction, and the culm is moved in the first rotor 21 and the second rotor 22 by rotating the dust feed valves 59, 59. It is possible to adjust the time for moving the cereal according to the variety of the cereal and the state of the cereal, and the versatile threshing device 18 adapted to various varieties and the like is configured.
[0028]
The screw 21a of the first rotor 21 is formed between the left end of the first rotor 21 and the left side of the communication portion 23a. The radius of the first rotor 21 is formed on the outer peripheral surface of the first rotor 21 in front of the communication portion 23a. Plate-shaped feed blades 21b, 21b,... Projecting in the direction are formed. Similarly, the screw 22a of the second rotor 22 is formed between the right end of the second rotor 22 and the right side of the discharge port 24a, and the outer peripheral surface of the second rotor 22 in front of the discharge port 24a on the left side from the terminal end of the screw 22a. Are formed, and the waste after threshing (removal) is sent by the feed blades 22b, 22b, and discharged from the discharge port 24a.
[0029]
In such a configuration, when the harvested sorghum is fed from the feeder house 10 to the supply port 12, the harvested sorghum is shed while being conveyed rightward by the rotation of the first rotor 21. And when it reaches the right end of the first rotor 21, it is sent to the threshing space of the second rotor 22 from the communicating portion 23 a formed in a gently inclined shape, and threshed while being conveyed to the left by the rotation of the second rotor 22, When sent to the left end of the rotor 22, it is dropped from the discharge port 24a.
[0030]
A guide plate 60 extends from the lower portion of the discharge port 24a to the rear and lower side, and a discharge beater 61 that forcibly discharges waste to the rear is positioned between the upper rear portion of the guide plate 60 and the bottom of the engine room 49. Is provided. The rejection beater 61 has a compact and easy-to-assemble shape with an outer diameter smaller than the outer diameter of the rotors 21 and 22, and the rotational speed of the rejection beater 61 is made faster than the rotation speed of the second rotor 22 to eliminate the waste. The peripheral speed of the beater 61 is set to be equal to or higher than that of the rotors 21 and 22 to enhance the performance of sending waste to the rear.
[0031]
The waste beater 61 has a left end coinciding with the left end portion of the discharge port 24a, and a right end portion of the waste beater 61 extends further to the right side than the right end portion of the discharge port 24a to remove the waste discharged from the discharge port 24a. Widely conveyed to the left and right, taken in by a suction fan 92 behind the discharge beater 61, and inherited by a chopper-type spreader 62 that extends horizontally across the width at the rear end of the machine body. It is cut by a bowl-shaped blade and discharged to the field from the rear end of the machine.
[0032]
In addition, a sorting device 19 is disposed below the threshing device 18, and the configuration thereof includes a drifting grain plate 25, a swinging body 50, a tang 27 that generates a sorting wind, and the sorted first thing in the left-right direction. The first conveyor 28 and the second conveyor 31 for transporting the second item are arranged so that the threshing dropped from the threshing device 18 can be selected.
[0033]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0034]
That is, as shown in claim 1, a conveying device 9 for conveying cereals is arranged at the rear part of the reaping device 8, and a threshing device in which a screw type rotor is arranged in the left-right direction is arranged at the rear part of the conveying device 9. In the combine that is provided, the transport device 9 has a configuration in which a feeder conveyor 11 is provided in the feeder house 10, and the rear end of the feeder house 10 communicates with the supply port 12 to the threshing device 18, and the supply A cylindrical beater 34 having a rotation axis in the horizontal direction is arranged in the front part of the mouth 12 to forcibly send the cereals to the threshing device 18, and the threshing device 18 has an axis in the horizontal direction. The first rotor 21 and the second rotor 22 are arranged in parallel in the front-rear direction with respect to the aircraft traveling direction, and screws 21a and 22a are provided around the first rotor 21 and the second rotor 22, The beater 34 The rotation direction and the rotation direction of the first rotor 21 on the front side are the same, and in order to prevent the cereal straw supplied into the threshing device 18 from flowing backward from the supply port 12 to the beater 34 side, A supply guide plate 32 that closes the upper portion of the supply port 12 between the first rotor 21 is provided, the left and right widths of the supply guide plate 32 substantially coincide with the inner width of the supply port 12, and the supply guide plate (32) The extension part (32a) which goes to the threshing device (18) inside in the side view is provided, and the extension part (32a) is directed toward the position where the first rotor (21) and the beater (34) are closest to each other. Since it has been extended, it is possible to prevent the cereal from returning from the supply port to the beater side, and the cereal can be smoothly fed into the threshing device without being clogged near the supply port.
[0035]
In claim 2, in the general-purpose combine according to claim 1, since the extension plate 33 extending downward is attached to the lower part of the extension part 32a, the return of the cereal to the beater side is further reduced. And clogging in the beater can be prevented.
[0036]
As shown in claim 3, in the general combine according to claim 1 or 2, since the cleaning port 66a is formed in the supply plate 66 disposed below the beater 34, when clogging occurs in the beater, The cleaning port can be opened and the cereal grains on the supply plate can be easily removed, improving maintainability.
[Brief description of the drawings]
FIG. 1 is a partial sectional view of an entire side surface of a general-purpose combiner.
FIG. 2 is a partial cross-sectional view of the entire plane.
FIG. 3 is a side sectional view of a threshing device and a sorting device.
FIG. 4 is a side view of the front part of the machine frame.
FIG. 5 is a side view of the supply port when the supply guide plate is not extended by the extension plate.
FIG. 6 is a side view of a supply port when a supply guide plate is extended by an extension plate.
FIG. 7 is also a plan view.
FIG. 8 is a side view of the vicinity of a supply port.
FIG. 9 is a side view of the vicinity of a supply port according to another embodiment.
[Explanation of symbols]
8 Mowing device 9 Transport device 18 Threshing device 21 First rotor 22 Second rotor 32 Supply guide plate 34 Beat

Claims (3)

A conveying device (9) for conveying cereals is arranged at the rear of the mowing device (8), and a threshing device (18) with a screw-type rotor arranged in the left-right direction is arranged at the rear of the conveying device (9). In the combined combine, the transport device (9) has a feeder conveyor (11) in the feeder house (10), and the rear end of the feeder house (10) is connected to the threshing device (18). A cylindrical beater having a rotation axis in the horizontal direction in order to forcibly send cereals to the threshing device (18) at the front of the supply port (12). 34), and the threshing device (18) has a first rotor (21) and a second rotor (22) which are arranged in parallel in the front-rear direction with respect to the aircraft traveling direction, with the axis centered in the horizontal direction. Around the first rotor (21) and the second rotor (22) A clew (21a, 22a) is provided, the rotation direction of the beater (34) and the rotation direction of the first rotor (21) on the front side are the same, and the cereal meal fed into the threshing device (18) A supply guide plate (32) for closing the upper part of the supply port (12) between the beater (34) and the first rotor (21) in order to prevent backflow from the supply port (12) to the beater (34). ), The left and right width of the supply guide plate (32) is substantially equal to the inner width of the supply port (12), and the supply guide plate (32) extends toward the inside of the threshing device (18) in a side view. A general-purpose combine characterized in that a part (32a) is provided and the extension part (32a) extends toward a position where the first rotor (21) and the beater (34) are closest to each other .   The general-purpose combine according to claim 1, wherein an extension plate (33) extending downward is attached to a lower portion of the extension portion (32a).   The general-purpose combine according to claim 1 or 2, wherein a cleaning port (66a) is formed in a supply plate (66) disposed below the beater (34).

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