Edamame harvester

Abstract

To provide a green soybean harvester capable of thoroughly removing mud from roots of green soybeans.SOLUTION: A green soybean harvester includes a removing / conveying device 3 for removing green soybeans A planted in a field and conveying them rearward, and rotating bodies 33L and 33R coming into contact with roots A1 of the green soybeans A being conveyed in a middle of a conveyance route in the removing / conveying device 3 and removing mud therefrom. The rotating bodies 33L and 33R rotate in such a manner that a rotating direction Z of an area in a side approaching the roots A1 faces the same direction as the conveyance direction of the removing / conveying device 3.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a soybean harvester. [Background technology]

[0002] For example, the soybean harvester disclosed in Patent Document 1 is equipped with a swinging soil-removing mechanism (referred to as a "soil-removing device" in the document), which contacts the roots of the soybeans as they are being transported to remove mud. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-105018 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the swinging soil-removing mechanism disclosed in Patent Document 1, soil tends to accumulate in the swinging part, so unless an operator removes the soil periodically, the soil-removing mechanism may not be able to thoroughly remove the mud from the roots of the soybeans. For this reason, there is room for improvement in the mechanism for removing mud from the roots of soybeans.

[0005] To provide a soybean harvester capable of thoroughly removing mud from the roots of soybeans. [Means for solving the problem]

[0006] In the soybean harvester of the present invention, a removal and transport device that removes soybeans planted in a field and transports them backwards and a removal and transport device that are opposed to each other in the left and right direction of the machine body are provided. Extraction and conveying device The conveying path is divided and arranged on the left and right sides, and when viewed from above, Transport route By rotating around the same axis in the direction perpendicular to the conveying direction, RecordingThe rotary body is provided with a plurality of contact portions extending radially from a rotation axis of the rotary body and contacting the root portion, and a plurality of contact portions extending radially from an outer peripheral end of the contact portions. The above Bends toward the center of the conveying path Multiple and a bent portion, and the contact portion in one of the left and right rotating bodies is bent between adjacent two of the plurality of contact portions in the other of the left and right rotating bodies when viewed in the direction of the rotation axis of the rotating body. of Located between the contact portions, and The two aforementioned The bent portions of the left and right rotating bodies are shifted in phase by an equal angle with respect to each of the contact portions, and the ... when viewed in the direction of the rotation axis of the rotating bodies, between two adjacent bent portions of the plurality of bent portions of the other left and right rotating bodies. of Located between the bends, and The two aforementioned The rotation direction of the rotating body is shifted by an equal angle with respect to each of the bent portions, and the rotation direction of the region on the side where the upper part of the conveyed soybeans is located is the forward direction. Recording It is characterized by rotating so that the direction is the same as the feed direction. In addition, the soybean harvester of the present invention includes a removal and transport device that removes soybeans planted in a field and transports them backward, and a removal and transport device that is opposed to each other in the left and right direction of the machine body. Extraction and conveying device The conveying path is divided and arranged on the left and right sides, and when viewed from above, Transport route By rotating around the same axis in the direction perpendicular to the conveying direction, Recording The machine is provided with left and right rotating bodies that come into contact with the roots of the soybeans being transported along the transport path to remove mud, and left and right support plates that are arranged on the outer sides of the machine body relative to the left and right rotating bodies and extend up and down and front and rear. The rotating bodies rotate in a direction such that the direction of rotation of the area on the side where the upper part of the soybeans being transported is forward. Recording The rotating body rotates in the same direction as the feed direction, the left rotating body is supported by a cantilever on the left support plate, and the right rotating body is supported by a cantilever on the right support plate, and no structure exists between the left and right rotating bodies.

[0007] According to the present invention, a rotating body is provided in the middle of the conveying path in the extracting and conveying device, and the rotating body contacts the roots of the soybeans being conveyed to remove the mud. The rotation of the rotating body removes the mud from the roots and scatters them, so the risk of mud accumulating on the rotating body is reduced compared to the swinging soil-removing mechanism disclosed in Patent Document 1. In addition, the rotating body rotates so that the direction of rotation of the area approaching the roots is the same as the conveying direction of the extracting and conveying device, so the risk of the roots and mud wrapping around the rotating body is reduced compared to a configuration in which the direction of rotation of the area approaching the roots is opposite to the conveying direction of the extracting and conveying device. With this configuration, a configuration in which the rotating body is rotated so that the direction of rotation of the area approaching the roots is the same as the conveying direction of the extracting and conveying device can be easily realized. With this configuration, a configuration in which the left and right rotating bodies contact the roots from the left and right is possible. Therefore, the mud is brushed off from the soybeans being conveyed along the conveying path without being impeded by the rotating body. With this configuration, the mud is brushed off from the roots of the soybeans while passing between the left and right rotating bodies during transport. With this configuration, the contact portion of one of the left and right rotating bodies is out of phase with the contact portion of the other of the left and right rotating bodies. Therefore, the contact portion of one of the left and right rotating bodies does not face the contact portion of the other of the left and right rotating bodies on the side where the other of the left and right rotating bodies are located. When the contact portion of one of the left and right rotating bodies contacts the roots of the soybeans, the roots of the soybeans can escape to the space on the side where the other of the left and right rotating bodies are located. As a result, compared to a configuration in which the contact portions of the left and right rotating bodies face each other, the contact portion does not come into contact with the roots with excessively strong force, and the risk of the roots getting entangled in the contact portion or the transport posture of the soybeans transported by the extraction transport device being lost is reduced. In addition, since the left and right rotating bodies are formed to have the same shape, it is possible to configure the right rotating body to be replaced on the left side and the left rotating body to be replaced on the right side. As a result, even if a part of the rotor wears out, the rotor can be switched between the left and right sides so that the unworn part comes into contact with the roots of the soybeans, allowing the left and right rotors to be used continuously. This reduces the frequency with which the left and right rotors need to be replaced. This makes it possible to realize a soybean harvester that can thoroughly remove mud from the roots of soybeans.

[0008]

[0009]

[0010] In the present invention, it is preferable that the rotor is provided with a plurality of contact portions extending radially from a rotation axis of the rotor and coming into contact with the root portion.

[0011] With this configuration, the contact parts extend radially from the rotation axis of the rotor. Therefore, when the rotor rotates, the tips of the contact parts tap the roots of the soybeans in small increments. This allows the muddy soil on the roots of the soybeans to be thoroughly brushed off.

[0012]

[0013]

[0014]

[0015]

[0016] In the present invention, a power transmission shaft that rotates about an axis that intersects the conveying direction in a plan view and left and right endless rotating bodies that transmit power from the power transmission shaft to each of the left and right rotating bodies are provided behind the left and right rotating bodies, and left and right drive wheels that are arranged on the left and right sides of the conveying path and rotate integrally with the power transmission shaft about the same axis are connected to the power transmission shaft, and each of the left and right rotating bodies is connected to a driven wheel that rotates integrally with the rotating body about the same axis while being located on the opposite side of the rotating body from the side where the conveying path is located, and it is preferable that one of the left and right endless rotating bodies is wound around one of the left and right drive wheels and the driven wheel connected to one of the left and right rotating bodies, and the other of the left and right endless rotating bodies is wound around the other of the left and right drive wheels and the driven wheel connected to the other of the left and right rotating bodies.

[0017] According to this configuration, the driven wheels are connected to the left and right rotating bodies on the lateral outer side of the machine body. The endless rotating body is wound around the drive wheels and driven wheels located on the lateral outer side of the machine body of each of the left and right rotating bodies. In other words, with this configuration, the mechanisms for driving the left and right rotating bodies are provided away from the conveying path, so compared to a configuration in which the driven wheels are connected to the lateral inner side of the machine body of each of the left and right rotating bodies, the soybeans being conveyed do not interfere with the mechanisms and are conveyed smoothly. This reduces the risk that the roots of the soybeans or mud will wrap around the drive wheels, driven wheels, or endless rotating body. Furthermore, with this configuration, the power is distributed from the power transmission shaft to each of the left and right rotating bodies, so it is easy to configure the left and right rotating bodies to rotate at the same rotational speed.

[0018] In addition, the configurations "the endless rotating body on one of the left and right sides is wrapped around the drive wheel on one of the left and right sides and the driven wheel connected to the rotating body on one of the left and right sides" and "the endless rotating body on the other of the left and right sides is wrapped around the drive wheel on the other of the left and right sides and the driven wheel connected to the rotating body on the other of the left and right sides" do not mean that the endless rotating body is wrapped only around the drive wheel and driven wheel, and the endless rotating body may also be wrapped around other wheels.

[0019] In the present invention, it is preferable that the left and right rotating bodies are formed in the same shape, the rotating bodies are provided with a plurality of contact portions that extend radially from the rotation axis of the rotating body and contact the root portion, and the contact portions of one of the left and right rotating bodies are out of phase with the contact portions of the other of the left and right rotating bodies by a preset angle. of Located between the contact portions, and The two aforementioned Preferably, they are equally angularly out of phase with each of the contacts.

[0020] In this configuration, the contact portion of one of the left and right rotating bodies is out of phase with respect to the contact portion of the other of the left and right rotating bodies. Therefore, the contact portion of one of the left and right rotating bodies does not face the contact portion of the other of the left and right rotating bodies on the side where the other of the left and right rotating bodies are located. When the contact portion of one of the left and right rotating bodies contacts the roots of the soybeans, the roots of the soybeans can escape to the space on the side where the other of the left and right rotating bodies are located. As a result, compared to a configuration in which the contact portions of the left and right rotating bodies face each other, the contact portion does not contact the roots with excessively strong force, and the risk of the roots getting entangled in the contact portion or the transportation posture of the soybeans transported by the extraction transport device being lost is reduced. In addition, since the left and right rotating bodies are formed in the same shape, it is possible to configure the right rotating body to be replaced with the left side and the left rotating body to be replaced with the right side. As a result, even if a portion of the rotating body wears out, the left and right rotating bodies can be used continuously by replacing the rotating body with the left and right sides so that the unworn portion comes into contact with the roots of the soybeans. This reduces the frequency of replacing the left and right rotating bodies.

[0021] In the present invention, it is preferable that an extended tip end of the contact portion is closer to the side where the transport path is located than a base end of the contact portion in a plan view.

[0022] With this configuration, the extended tip of the contact part is more likely to come into contact with the roots of the soybeans being transported than the base end of the contact part. Also, since the base end of the contact part is farther away from the transport path than the extended tip, the risk of the roots or mud becoming entangled in the base end of the contact part is reduced. [Brief description of the drawings]

[0023] [Figure 1] FIG. 2 is an overall left side view of the crop harvester. [Diagram 2] FIG. 2 is an overall plan view of the crop harvester. [Diagram 3] FIG. 4 is a left side view of the machine body showing the main parts of the soil removing mechanism. [Figure 4] FIG. 4 is a plan cross-sectional view showing the main parts of the soil removing mechanism. [Diagram 5]FIG. 4 is a right side view of the machine body showing the main parts of the soil removing mechanism. [Figure 6] FIG. 2 is a cross-sectional view of the machine body as seen from the front, showing the main parts of the soil removing mechanism. [Figure 7] FIG. 4 is a perspective view showing a main part of the soil removing mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The soybean harvester is shown in Figures 1 and 2. In each figure, the "F" arrow indicates the forward direction, the "B" arrow indicates the backward direction, the "U" arrow indicates the upward direction, the "D" arrow indicates the downward direction, the "R" arrow indicates the rightward direction, and the "L" arrow indicates the leftward direction.

[0025] [Overall configuration of the soybean harvester] As shown in Figures 1 and 2, a machine body 1 is supported by left and right crawler-type traveling devices 2. A sampling and conveying device 3 and a driving section 4 are provided side by side on the left and right sides at the front of the machine body 1, with the sampling and conveying device 3 located on the left side of the driving section 4. A separation section 5 is provided at the rear of the machine body 1, and a recovery section 6 is provided at the right side of the machine body 1.

[0026] The conveying direction of the extracting and conveying device 3 is inclined upward toward the rear. As the machine body 1 advances, the extracting and conveying device 3 pulls out and lifts up the upright soybeans A in the field, and conveys them diagonally upward toward the rear while maintaining the upright position. In other words, the extracting and conveying device 3 extracts the soybeans A planted in the field and conveys them backward. At the end of the extracting and conveying device 3, the soybeans A are changed to a lying position by the position changing section 21, and are handed over to the conveying chain 22, which is a conveying body.

[0027] The soybeans A are transported in a sideways position by the transport chain 22, while the seeds A2 are separated from the soybeans A in the separation section 5. The separated seeds A2 are collected in the collection section 6, and the soybeans A from which the seeds A2 have been separated are discharged onto the ground from the terminal end of the transport chain 22.

[0028] [Configuration of the Extraction and Conveying Device] 1 and 2, the left and right end driven pulleys 7 are rotatably supported around a diagonally upward and downward axis at the front of the extracting and conveying device 3. The intermediate driven pulleys 8, 9 are disposed above and below, and are supported integrally with the end driven pulleys 7 so as to be rotatable around a diagonally upward and downward axis at a position above the end driven pulleys 7.

[0029] Left and right drive pulleys 10 are supported rotatably around an obliquely oriented, vertical axis at the rear of the extracting and conveying device 3. Left and right rubber conveyor belts 11 are attached between the tip driven pulley 7 and the intermediate driven pulley 8, and left and right rubber conveyor belts 12 are attached between the intermediate driven pulley 9 and the drive pulley 10.

[0030] The left and right conveyor belts 11 and the left and right conveyor belts 12 are aligned over the entire length of the extracting and conveying device 3. The portion where the left and right conveyor belts 11 are aligned and the portion where the left and right conveyor belts 12 are aligned form the conveying path of the extracting and conveying device 3. A number of rollers 13 are rotatably supported by the extracting and conveying device 3, and the rollers 13 support the opposite side of the aligned portion of the conveyor belts 11 and the opposite side of the aligned portion of the conveyor belts 12. The left and right conveyor belts 11 and the left and right conveyor belts 12 extend linearly obliquely upward and rearward.

[0031] The leading end driven pulley 7, the intermediate driven pulley 8, the intermediate driven pulley 9, the drive pulley 10, the left and right conveyor belts 11, the left and right conveyor belts 12, and the rollers 13 are supported by a support frame 20. The support frame 20 extends from the front to the rear of the extracting and conveying device 3 in a state inclined upward toward the rear.

[0032] As the machine body 1 moves forward, the conveyor belts 11, 12 are rotated by the drive pulley 10, and soybeans A in an upright position in the field enter and are clamped at the beginning ends of the left and right conveyor belts 11. The soybeans A are pulled out and lifted while being clamped between the left and right conveyor belts 11. Then, the soybeans A are conveyed diagonally upward and backward while being maintained in an upright position with the stems of the soybeans A clamped between the left and right conveyor belts 12.

[0033] The rear part of the extracting and conveying device 3 is supported on the upper left part of the front part of the machine body 1 so as to be swingable up and down about an axis P1 along the left-right direction. A hydraulic cylinder 14 is connected between the front part of the machine body 1 and the extracting and conveying device 3, and the extracting and conveying device 3 is raised and lowered by the hydraulic cylinder 14.

[0034] [About the soil removal mechanism] In this embodiment, a soil removing mechanism 30 is connected to the sampling and conveying device 3. When viewed in the conveying direction of the sampling and conveying device 3, the soil removing mechanism 30 is located below the sampling and conveying device 3. As shown in Fig. 2, the soil removing mechanism 30 overlaps with the front and rear central regions of the sampling and conveying device 3 in a plan view.

[0035] 3 to 5, the soil removing mechanism 30 is provided with a power transmission shaft 31, a pair of left and right endless rotating chains 32L, 32R, a pair of left and right rotating bodies 33L and 33R, and a counter shaft 34. The left rotating body 33L and the right rotating body 33R come into contact with the roots A1 of the edamame A being transported along the transport path of the extracting and transporting device 3, and remove mud adhering to the roots A1. One of the left rotating body 33L and the right rotating body 33R is the "one left or right rotating body" of the present invention, and the other of the left rotating body 33L and the right rotating body 33R is the "other left or right rotating body" of the present invention.

[0036] Two vertical support plates 20A are connected to the support frame 20 on the left side of the aircraft body, and the two vertical support plates 20A are supported by the support frame 20 while being shifted forward and backward. Two vertical support plates 20A are connected to the support frame 20 on the right side of the aircraft body, and the two vertical support plates 20A are supported by the support frame 20 while being shifted forward and backward. In other words, a total of four vertical support plates 20A are connected to the two support frames 20. The four vertical support plates 20A extend downward from the support frame 20.

[0037] Of the four vertical support plates 20A, the two vertical support plates 20A at the front are arranged side by side, and the two vertical support plates 20A at the rear are arranged side by side. A horizontal frame 20B is connected to each of the two vertical support plates 20A at the front, and a horizontal frame 20B is connected to each of the two vertical support plates 20A at the rear. The two horizontal frames 20B at the front and rear extend along the lateral direction of the aircraft. A left support plate 39L is connected to the two vertical support plates 20A on the left side of the aircraft, and a right support plate 39R is connected to the two vertical support plates 20A on the right side of the aircraft.

[0038] As shown in Fig. 3, an intermediate pulley 25 is provided on the left side of the machine body. The intermediate pulley 25 is supported by an intermediate shaft 27, and rotates integrally around an axis P1. Although not described in detail, a bevel gear (not shown) is interposed between the intermediate pulley 25 and the drive pulley 10 on the left side of the machine body. The intermediate pulley 25 receives power from an engine (not shown) and distributes the power of the engine to the drive pulley 10 and the counter shaft 34, respectively.

[0039] The counter shaft 34 is supported by a left support plate 39L. A pulley 34P is provided on the left end of the counter shaft 34, and a belt 26 is wound around the intermediate pulley 25 and the pulley 34P. A sprocket 34S is provided on the right end of the counter shaft 34.

[0040] As shown in FIG. 3, a long hole 39h is formed in the left support plate 39L. A cylindrical member 35L is bolted to the periphery of the long hole 39h in the left support plate 39L, and the cylindrical member 35L extends from the left support plate 39L toward the conveying path. As shown in FIG. 5, a long hole 39h is formed in the right support plate 39R. A cylindrical member 35R is bolted to the periphery of the long hole 39h in the right support plate 39R, and the cylindrical member 35R extends from the right support plate 39R toward the conveying path. Each of the left and right cylindrical members 35L and 35R extends along the lateral direction of the machine body. Axle members 36L and 36R are inserted into each of the left and right cylindrical members 35L and 35R, and each of the left and right shaft members 36L and 36R can rotate around a rotation axis X1 that is oriented laterally toward the machine body. The shaft member 36L passes through an elongated hole 39h in the left support plate 39L, and the shaft member 36R passes through an elongated hole 39h in the right support plate 39R.

[0041] The left rotating body 33L and the right rotating body 33R are respectively connected to the end portions of the left and right shaft members 36L, 36R on the conveying path side. The left rotating body 33L and the right rotating body 33R rotate integrally with the shaft members 36L, 36R. As a result, the left rotating body 33L and the right rotating body 33R rotate around a rotation axis X1 in a direction intersecting the conveying direction of the pick-up conveying device 3 in a plan view. The left rotating body 33L and the right rotating body 33R are disposed on the left and right sides of the conveying path of the pick-up conveying device 3, facing each other in the left-right direction of the machine body.

[0042] 4, a driven sprocket 36S is connected to the end of each of the left and right shaft members 36L, 36R opposite the transport path, and the driven sprocket 36S rotates integrally with the shaft members 36L, 36R. Each of the left and right driven sprockets 36S rotates integrally with the left and right rotating bodies 33L, 33R about the rotation axis X1 while being located on the opposite side to the transport path relative to the left and right rotating bodies 33L, 33R.

[0043] The driven sprocket 36S on the left side of the machine body and the left rotor 33L are separated to the left and right with a left support plate 39L in between, and the driven sprocket 36S on the right side of the machine body and the right rotor 33R are separated to the left and right with a right support plate 39R in between.

[0044] The power transmission shaft 31 is supported at both ends by the left support plate 39L and the right support plate 39R. The left and right ends of the power transmission shaft 31 protrude laterally outward from the left support plate 39L and the right support plate 39R. A drive sprocket 31S is connected to each of the left and right ends of the power transmission shaft 31. The power transmission shaft 31 is provided at the rear upper part of the left rotating body 33L and the right rotating body 33R, and rotates around an axis in a direction intersecting the conveying direction of the extracting and conveying device 3 in a plan view. The left and right drive sprockets 31S are arranged on the left and right sides of the conveying path of the extracting and conveying device 3, and rotate together with the power transmission shaft 31 around the same axis. An endless rotating chain 32L is wound around the sprocket 34S, the drive sprocket 31S on the left side of the machine body, and the driven sprocket 36S on the left side of the machine body. An endless rotating chain 32R is wound around the driving sprocket 31S on the right side of the machine body and the driven sprocket 36S on the right side of the machine body.

[0045] The left and right driving sprockets 31S are the "driving wheels" of the present invention. One of the left and right driving sprockets 31S is the "one of the left and right driving wheels" of the present invention, and the other of the left and right driving sprockets 31S is the "other of the left and right driving wheels" of the present invention. The left and right driven sprockets 36S are the "driven wheels" of the present invention. One of the left and right driven sprockets 36S is the "one of the left and right driven wheels" of the present invention, and the other of the left and right driven sprockets 36S is the "other of the left and right driven wheels" of the present invention. The endless rotating chains 32L, 32R are the "endless rotating bodies" of the present invention. One of the endless rotating chains 32L, 32R is the "one of the left and right endless rotating bodies" of the present invention, and the other of the endless rotating chains 32L, 32R is the "other of the left and right endless rotating bodies" of the present invention.

[0046] As shown in Fig. 3, the endless rotating chain 32L is wound around the sprocket 34S, the driving sprocket 31S on the left side of the machine body, and the driven sprocket 36S on the left side of the machine body, as well as a plurality of auxiliary sprockets 37 and a tension adjustment sprocket 38. The plurality of auxiliary sprockets 37 and the tension adjustment sprocket 38 on the left side of the machine body are supported by a left support plate 39L. The rotation path of the endless rotating chain 32L is formed by the plurality of auxiliary sprockets 37, and the endless rotating chain 32L is firmly engaged with the driving sprocket 31S on the left side of the machine body.

[0047] 5, the endless rotating chain 32R is wound around the drive sprocket 31S on the right side of the machine body, the driven sprocket 36S on the right side of the machine body, and also around the tension adjustment sprocket 38. The tension adjustment sprocket 38 on the right side of the machine body is supported by a right support plate 39R.

[0048] When the power from the engine (not shown) is transmitted to the intermediate pulley 25, the intermediate pulley 25 rotates, and the belt 26 rotates. Then, the pulley 34P of the counter shaft 34 receives power from the belt 26, and the counter shaft 34 rotates. When the sprocket 34S of the counter shaft 34 rotates, the endless rotating chain 32L rotates. The driving sprocket 31S on the left side of the machine body receives power from the endless rotating chain 32L, and the power transmission shaft 31 rotates. In addition, the driven sprocket 36S on the left side of the machine body receives power from the endless rotating chain 32L, and the shaft member 36L on the left side of the machine body rotates. And since the left rotating body 33L on the left side of the machine body is connected to the shaft member 36L on the left side of the machine body, the left rotating body 33L on the left side of the machine body rotates. In addition, the driving sprocket 31S on the right side of the machine body rotates in accordance with the rotation of the power transmission shaft 31, and the endless rotating chain 32R rotates. The driven sprocket 36S on the right side of the machine body receives power from the endless rotating chain 32R, and the shaft member 36R on the left side of the machine body rotates. And, since the right rotating body 33R on the right side of the machine body is connected to the shaft member 36R on the left side of the machine body, the right rotating body 33R on the right side of the machine body rotates. In this way, the endless rotating chains 32L, 32R transmit power from the counter shaft 34 and the power transmission shaft 31 to the left rotating body 33L and the right rotating body 33R, respectively. The left rotating body 33L and the right rotating body 33R rotate at the same speed, and the rotation speed of the left rotating body 33L and the right rotating body 33R is, for example, 300 rpm to 400 rpm.

[0049] As shown in Figs. 4, 6 and 7, the left rotating body 33L and the right rotating body 33R are each provided with a plurality of contact portions 33b. The left rotating body 33L is provided with four contact portions 33b, and the right rotating body 33R is provided with four contact portions 33b. The plurality of contact portions 33b extend radially from the rotation axis X1 of the left rotating body 33L and the right rotating body 33R and contact the root portion A1 of the green soybean A. The plurality of contact portions 33b are provided at equal intervals in the circumferential direction of the left rotating body 33L and the right rotating body 33R. In this embodiment, the four contact portions 33b in the left rotating body 33L are provided at 90 degree intervals in the circumferential direction, and the four contact portions 33b in the right rotating body 33R are provided at 90 degree intervals in the circumferential direction.

[0050] The left rotating body 33L and the right rotating body 33R are connected to the shaft members 36L and 36R, respectively, such that the contact portion 33b of the left rotating body 33L is angularly shifted (phase shifted) by 45 degrees from the contact portion 33b of the right rotating body 33R. Specifically, when viewed from the direction of the rotation axis core X1 (viewed from the direction of the rotation axis core of the rotating body), one contact portion 33b of the left rotating body 33L is located between two adjacent contact portions 33b of the right rotating body 33R. Also, one contact portion 33b of the left rotating body 33L is phase shifted by an equal angle (45 degrees) from each of the two adjacent contact portions 33b of the right rotating body 33R.

[0051] A bent portion 33c is formed on the outer peripheral end of each of the plurality of contact portions 33b. The contact portions 33b extend in the radial direction from the portion where the rotation axis X1 is located, and are bent toward the left and right center of the conveying path at the outer peripheral end. The portion of the outer peripheral end that is bent toward the conveying path is the bent portion 33c. In other words, the extended tip of the contact portion 33b, i.e., the bent portion 33c, is closer to the side where the conveying path of the pick-up conveying device 3 is located than the base end of the contact portion 33b in a plan view.

[0052] 3, 5, and 7, the contact portion 33b located in the upper region of the left rotating body 33L and the right rotating body 33R comes into contact with the root portion A1 of the edamame A, and mud adhering to the root portion A1 is removed. In other words, the left rotating body 33L and the right rotating body 33R rotate so that the direction of rotation of the region approaching the root portion A1 of the edamame A is the same as the conveying direction of the extraction conveying device 3. This reduces the risk that the root portion A1 will wrap around the left rotating body 33L and the right rotating body 33R or that the conveying posture of the edamame A will be disrupted, compared to a configuration in which the left rotating body 33L and the right rotating body 33R rotate in the opposite direction to the arrow Z.

[0053] When the soybeans A are conveyed upward and rearward along the conveying path of the extracting and conveying device 3 while their stems are sandwiched between the left and right conveying belts 12, the roots A1 of the soybeans A pass between the left rotating body 33L and the right rotating body 33R. At this time, the roots A1 come into contact with the contact parts 33b and the bent parts 33c of the left rotating body 33L and the right rotating body 33R, respectively, and the mud on the roots A1 is loosened and falls. At this time, the mud on the roots A1 is removed after the soybeans A are transferred from the left and right conveying belts 11 to the left and right conveying belts 12. Therefore, the posture of the soybeans A is more easily stabilized than in a configuration in which the mud on the roots A1 is removed by the soil removing mechanism 30 before the soybeans A are transferred to the left and right conveying belts 12.

[0054] In this embodiment, the distance between the contact portion 33b of the left rotating body 33L and the contact portion 33b of the right rotating body 33R is set to, for example, 70 mm or more. As shown in Figs. 4 and 6, the shaft members 36L, 36R are not present between the left rotating body 33L and the right rotating body 33R, and a space is present in which the root portion A1 of the soybean A can enter. That is, in this embodiment, no structure is present between the left rotating body 33L and the right rotating body 33R. In addition, the left support plate 39L is disposed laterally outward of the left rotating body 33L, and the right support plate 39R is disposed laterally outward of the right rotating body 33R. The driven sprocket 36S and the endless rotating chain 32L on the left side of the machine are disposed laterally outward of the left support plate 39L. The driven sprocket 36S and the endless rotating chain 32R on the right side of the machine are disposed laterally outward of the right support plate 39R. This reduces the risk that the root portion A1 of the soybeans A will become entangled with some structure when passing between the left rotating body 33L and the right rotating body 33R, or that the transport posture of the soybeans A transported by the extraction and transporting device 3 will become distorted.

[0055] In addition, one contact portion 33b in the left rotating body 33L is located between two adjacent contact portions 33b in the right rotating body 33R, and is out of phase with each of the two contact portions 33b by an equal angle (45 degrees). For this reason, for example, when the contact portion 33b in the left rotating body 33L contacts the root portion A1 of the soybean A, the root portion A1 of the soybean A can escape to the space on the side where the right rotating body 33R is located. This prevents the contact portion 33b from contacting the root portion A1 with an excessively strong force, as compared with a configuration in which the contact portions 33b in the left rotating body 33L and the right rotating body 33R face each other. As a result, the risk that the root portion A1 will be entangled in the contact portion 33b or that the transport posture of the soybean A transported by the extracting and transporting device 3 will be lost is reduced.

[0056] The edge portion on the downstream side in the rotation direction of the contact portion 33b frequently comes into contact with the root portion A1 of the soybean A. Therefore, as the left rotating body 33L and the right rotating body 33R continue to rotate, wear of the edge portions on the downstream side in the rotation direction of the left rotating body 33L and the right rotating body 33R progresses. On the other hand, the edge portion on the upstream side in the rotation direction of the contact portion 33b is less likely to come into contact with the root portion A1 of the soybean A than the edge portion on the downstream side in the rotation direction. Therefore, wear of the edge portion on the upstream side in the rotation direction progresses less than that of the edge portion on the downstream side in the rotation direction. For this reason, the left rotating body 33L and the right rotating body 33R are consumables that need to be replaced.

[0057] The left rotating body 33L and the right rotating body 33R are formed in the same shape. Therefore, the worker can replace the left rotating body 33L connected to the right end of the shaft member 36L with the left end of the shaft member 36R, and replace the right rotating body 33R connected to the left end of the shaft member 36R with the right end of the shaft member 36L. In this way, by replacing the left rotating body 33L and the right rotating body 33R, the circumferential directions of the edge portion on the upstream side in the rotation direction and the edge portion on the downstream side in the rotation direction are reversed. Therefore, after replacing the left rotating body 33L and the right rotating body 33R, the edge portion on the upstream side in the rotation direction frequently comes into contact with the root A1 of the soybean A. Compared to the edge portion on the downstream side in the rotation direction, the wear of the edge portion on the upstream side in the rotation direction is not progressing. Therefore, each of the left rotating body 33L and the right rotating body 33R can be used until both the edge portion on the upstream side in the rotation direction and the edge portion on the downstream side in the rotation direction are worn out. In other words, as the wear of each of the left rotating body 33L and the right rotating body 33R progresses, the usable time of each of the left rotating body 33L and the right rotating body 33R can be doubled by rearranging the left and right mounting positions of each of the left rotating body 33L and the right rotating body 33R. This reduces the frequency of replacement of the left rotating body 33L and the right rotating body 33R.

[0058] In this embodiment, as shown in Figs. 3 and 5, a long hole 39h is formed in each of the left support plate 39L and the right support plate 39R. The left and right long holes 39h are curved in an arc shape and are formed to have the same shape when viewed from the side of the machine. Each of the left and right shaft members 36L, 36R is configured to be able to change its position at two points, one end of the long hole 39h in the longitudinal direction and the other end of the long hole 39h in the longitudinal direction. Thus, the left rotating body 33L and the right rotating body 33R are configured to be able to change their vertical positions in two stages. This makes it possible to adjust the height positions of the left rotating body 33L and the right rotating body 33R in accordance with cases where the roots A1 of the soybeans A are different in size, or where the vertical positions of the stems of the soybeans A sandwiched between the left and right conveyor belts 12 are different.

[0059] [Another embodiment] The present invention is not limited to the configurations exemplified in the above-described embodiments, and other representative embodiments of the present invention will be described below.

[0060] (1) In the above embodiment, both the left rotating body 33L and the right rotating body 33R are provided. However, a configuration in which only one of the left rotating body 33L and the right rotating body 33R is provided may also be used.

[0061] (2) In the above embodiment, the endless rotating chain 32L is wound around the driving sprocket 31S on the left side of the machine body and the driven sprocket 36S on the left side of the machine body. Also, in the above embodiment, the endless rotating chain 32R is wound around the driving sprocket 31S on the right side of the machine body and the driven sprocket 36S on the right side of the machine body. This is not limited to the above embodiment, and for example, the left and right driving sprockets 31S and the left and right driven sprockets 36S may be pulleys, and the endless rotating chains 32L, 32R may be belts.

[0062] (3) In the above-described embodiment, the power transmission shaft 31 is provided above and behind the left rotating body 33L and the right rotating body 33R. This is not limited to the embodiment, and for example, the power transmission shaft 31 may be provided below the left rotating body 33L and the right rotating body 33R or directly behind the left rotating body 33L and the right rotating body 33R.

[0063] (4) In the above embodiment, the left rotating body 33L and the right rotating body 33R rotate about the rotation axis X1 that is oriented horizontally to the machine body. This is not limited to the embodiment, and for example, the left rotating body 33L and the right rotating body 33R may be configured to rotate about an axis oriented vertically or about an axis that is aligned with the conveying direction of the pick-up and conveying device 3.

[0064] (5) In the above embodiment, the left rotating body 33L and the right rotating body 33R each have four contact portions 33b. This is not limited to the embodiment, and the number of contact portions 33b in the left rotating body 33L may be three or less, or five or more. Also, the number of contact portions 33b in the right rotating body 33R may be three or less, or five or more.

[0065] (6) In the above embodiment, the contact portion 33b of the left rotating body 33L is angularly shifted (phase shifted) by 45 degrees from the contact portion 33b of the right rotating body 33R. This is not limited to the embodiment, and for example, the contact portion 33b of the left rotating body 33L may be angularly shifted by an angle less than 45 degrees from the contact portion 33b of the right rotating body 33R. Furthermore, if there is a space between the left rotating body 33L and the right rotating body 33R into which the root portion A1 can sufficiently enter, the contact portion 33b of the left rotating body 33L may be configured not to be angularly shifted from the contact portion 33b of the right rotating body 33R.

[0066] (7) In the above embodiment, the bent portion 33c is formed at the extended tip of the contact portion 33b. This embodiment is not limited to this embodiment, and the bent portion 33c may not be formed at the extended tip of the contact portion 33b. In this case, the contact portion 33b may be configured to approach the side where the transport path is located as it approaches the extended tip side in a plan view. In other words, the extended tip of the contact portion 33b may be configured to approach the side where the transport path is located more closely than the base end of the contact portion 33b in a plan view.

[0067] (8) In the above embodiment, the endless rotating chain 32L is wound around the sprocket 34S, the driving sprocket 31S on the left side of the machine body, the driven sprocket 36S on the left side of the machine body, as well as multiple auxiliary sprockets 37 and the tension adjustment sprocket 38. This embodiment is not limited to this, and the configuration may not include the auxiliary sprocket 37. For example, the endless rotating chain 32L may be wound around the sprocket 34S, the driving sprocket 31S on the left side of the machine body, the driven sprocket 36S on the left side of the machine body, and the tension adjustment sprocket 38.

[0068] The configurations disclosed in the above-mentioned embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, unless a contradiction occurs. In addition, the embodiments disclosed in this specification are merely examples, and the present invention is not limited to these embodiments, and can be appropriately modified within the scope of the present invention. [Industrial Applicability]

[0069] The present invention is applicable to soybean harvesters. [Explanation of symbols]

[0070] 3: Extraction and transport device 30: Soil removal mechanism 31: Power transmission shaft 31S: Drive sprocket (drive wheel) 32L: Endless rotating chain (endless rotating body) 32R: Endless rotating chain (endless rotating body) 33L: Left rotating body (rotating body) 33R: Right-handed rotating body (rotating body) 33b: Contact part 36S: Driven sprocket (driven wheel) A: Edamame A1: Root X1: Rotation axis (rotation axis of the rotating body, same axis) Z: Rotation direction of the rotating body

Claims

1. A removal and transport device that removes the soybeans planted in the field and transports them backward; and left and right rotors that are arranged on the left and right sides of the conveying path of the extracting and conveying device in a state of facing each other in the left-right direction of the machine body, and rotate about the same axis in a direction intersecting the conveying direction of the conveying path in a plan view, thereby contacting the roots of the soybeans being conveyed along the conveying path to remove mud. the rotating body is provided with a plurality of contact portions extending radially from a rotation axis of the rotating body and contacting the root portion, and a plurality of bent portions bent from an outer peripheral end portion of the contact portions toward a left-right center side of the conveying path, the contact portion of one of the left and right rotating bodies is located between two adjacent contact portions of the plurality of contact portions of the other of the left and right rotating bodies when viewed in a rotation axis direction of the rotating body, and is shifted in phase with respect to each of the two contact portions by an equal angle; the bent portion in one of the left and right rotating bodies is located between two adjacent bent portions among the plurality of bent portions in the other of the left and right rotating bodies when viewed in a rotation axis direction of the rotating body, and is shifted in phase with respect to each of the two bent portions by an equal angle; The rotating body rotates so that the direction of rotation of the area on the side where the upper part of the soybeans being transported is located is the same as the transport direction.

2. A removal and transport device that removes the soybeans planted in the field and transports them backward; left and right rotors that are arranged on the left and right sides of the conveying path of the extracting and conveying device while facing each other in the left-right direction of the machine body, and rotate about the same axis in a direction intersecting the conveying direction of the conveying path in a plan view, thereby contacting the roots of the soybeans being conveyed along the conveying path to remove mud; and left and right support plates arranged on the outer lateral sides of the fuselage with respect to the left and right rotating bodies and extending up and down and forward and backward, The rotating body rotates so that the rotation direction of the region on the side where the upper part of the conveyed green soybeans is located is the same as the conveying direction, This soybean harvester has a left rotating body supported by a cantilever on the left support plate, a right rotating body supported by a cantilever on the right support plate, and no structure between the left and right rotating bodies.

3. 3. The soybean harvester according to claim 2, wherein the rotor is provided with a plurality of contact portions which extend radially from a rotation axis of the rotor and come into contact with the roots.

4. The left and right rotating bodies are formed in the same shape, The rotor is provided with a plurality of contact portions extending radially from a rotation axis of the rotor and contacting the root portion, 4. The soybean harvester according to claim 2, wherein the contact portion of one of the left and right rotating bodies is out of phase with the contact portion of the other of the left and right rotating bodies by a preset angle.

5. A soybean harvester as described in claim 4, wherein the contact portion on one of the left and right rotating bodies is located between two adjacent ones of the multiple contact portions on the other of the left and right rotating bodies when viewed in the direction of the rotation axis of the rotating body, and is phase-shifted at an equal angle relative to each of the two contact portions.

6. The soybean harvester according to claim 1 , wherein the extended tip end of the contact portion is closer to the side where the conveying path is located than the base end of the contact portion in a plan view.

7. a power transmission shaft that rotates around an axis that intersects with the conveying direction in a plan view and is provided behind the left and right rotating bodies; and left and right endless rotating bodies that transmit power from the power transmission shaft to the left and right rotating bodies, respectively. Left and right drive wheels are connected to the power transmission shaft, the drive wheels being arranged on the left and right sides of the conveying path and rotating integrally with the power transmission shaft about the same axis; a driven wheel is connected to each of the left and right rotating bodies and rotates integrally with the rotating bodies about the same axis while being located on the opposite side of the rotating body from the side where the conveying path is located, The left or right endless rotating body is wound around the left or right driving wheel and the driven wheel connected to the left or right rotating body, A soybean harvester as described in any one of claims 1 to 6, wherein the other of the left and right endless rotating bodies is wound around the other of the left and right driving wheels and the driven wheels connected to the other of the left and right rotating bodies.

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