JP7157403B2 - crop harvester - Google Patents

Description

The present invention relates to a crop harvester for harvesting crops in a field.

An edamame harvester, which is an example of a crop harvester, has a configuration as disclosed in Patent Document 1. In Patent Document 1, right and left first conveying bodies that pinch the crops in the field from the right and left sides, lift them from the field and convey them to the rear side, and hold the root of the crop that is lying sideways and move it to the rear side. A second conveying body for conveying and a separating section for separating the fruit from the crop conveyed by the second conveying body are provided.

As a result, in Patent Document 1, the crop in the upright posture in the field is held and lifted by the first carrier, and the posture of the crop is gradually changed to the lying posture while being carried by the first carrier.
The crop is in a sideways attitude at the transportation terminal end of the first carrier, and the crop in the sideways attitude is transferred from the transportation terminal end of the first carrier to the transportation start end of the second carrier. The crop is conveyed rearward in a sideways posture by the second conveying body, and while the crop is being conveyed by the second conveying body, the separating unit separates the fruit from the crop and collects the separated fruit. .

According to Patent Literature 1, the first conveying body has a conveying starting end portion that is rotationally driven around an axis in the vertical direction, and crops in an upright posture in a field are pinched by the first conveying body. The transport end portion of the first transport body is rotationally driven around a horizontal axis, and the crop is changed to a sideways posture at the transport end portion of the first transport body. .

As a result, the axes of rotation of the first transport body are orthogonal to each other at the transport start end and the transport end part of the first transport body, and the first transport body moves from the transport start end to the transport end part. It is in a state of being twisted all the way through.

Japanese Unexamined Patent Publication No. 2000-201519

In Patent Document 1, when the crops are conveyed by the first conveying body, the crops are conveyed rearward and at the same time, the crops are changed from an upright posture to a lying posture. Clamping and transport may not be performed stably.

As described above, when the crop is conveyed while being pinched by the first conveying body, in order to ensure that the crop is pinched, the portion of the first conveying body that pinches the crop is supported from the opposite side of the crop. It is necessary to provide rollers, guides, and the like.

However, when the first conveying body is twisted from the conveying start end to the conveying end portion as in Patent Document 1, it becomes difficult to provide the aforementioned rollers, guides, and the like. If the number of rollers, guides, etc. described above is small (if they are not provided), there is a possibility that the nipping and transport of the crop by the first transport body will not be performed stably.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a crop harvester provided with a first carrier, a second carrier, and a separating section, so that the first carrier can stably pinch and carry the crop. .

The crop harvester of the present invention is
It is rotationally driven around an axis along the oblique vertical direction, holds the crops in the field from the right and left sides, lifts them from the field, and conveys the lifted crops obliquely upward to the rear side while maintaining the upright posture. right and left first carriers;
a second conveying body that is rotationally driven about an axis in the left-right direction and extends rearward from the conveying end portion of the first conveying body;
a guide rail extending rearward along the upper side of the second carrier and supported so as to be vertically movable ;
The left and right first conveying bodies have belts, and the crop conveyed with the roots of the crops sandwiched between the belts of the left and right first conveying bodies changes its attitude to a sideways posture at the conveying end of the first conveying bodies. and the crop lying sideways is conveyed in a sandwiched state between the second conveying body and the guide rail,
a separation unit disposed on the right or left side of the second carrier for separating the fruit from the crops carried by the second carrier,
A guide attached to the transport starting end of the guide rail and extending forward to guide the base of the crop from the transport end of the first transport body between the second transport body and the guide rail. provided with components ,
The extending end of the guide member is located at a position higher than the upper end in the width direction of the belt at the conveying end portion of the first conveying body .

According to the present invention, the crop in the upright position in the field is nipped from the right and left sides by the right and left first conveyers and lifted from the field, and the crop is conveyed to the rear side while being maintained in the upright position.
When the crop in the standing posture reaches the conveying end portion of the first conveying body, the crop in the standing posture falls sideways in the delivery portion from the conveying end portion of the first conveying body to the conveying starting end portion of the second conveying body. It is changed and transferred to the beginning of the transport of the second transport.
The crop whose attitude is changed to the sideways attitude is conveyed by the second conveying body, the fruit is separated from the crop conveyed by the second conveying body by the separating section, and the separated fruit is collected.

As described above, according to the present invention, after the crop in the standing posture of the field is lifted from the field by the first conveying body, the crop is conveyed rearward while being maintained in the standing posture. is stably held and conveyed. Thereby, the harvesting performance of the crop harvester can be improved.

According to the present invention, since the first conveying body is not twisted from the conveying start end to the conveying end part, the rollers and guides that support the portion of the first conveying body that holds the crop from the opposite side of the crop are provided. etc., can be provided without difficulty. In this respect as well, it is advantageous for stably holding and conveying the crop by the first conveying body.

According to the present invention, the guide rail extends along the upper side of the second transport body that is rotationally driven about the axis in the left-right direction, and the second transport body and the guide rail extend along the upper side of the second transport body. The root of the crop lying sideways is sandwiched between them, and the crop is conveyed by the second conveying body.

According to the present invention, since the root of the crop from the conveying end of the first conveying body is guided between the second conveying body and the guide rail by the guide member, the crop is transported between the second conveying body and the guide rail. It is possible to improve the certainty of holding the stock source.

According to the present invention, the guide rail is supported so as to move up and down according to the amount of the root of the crop sandwiched between the second conveying body and the guide rail, and the guide member is the conveying start end of the guide rail. It is attached to the part and extends forward.
As a result, the guide member moves up and down together with the transport start end of the guide rail. is changed so that the root of the crop from the conveying end of the first conveying body is properly guided between the second conveying body and the guide rail by the guide member.

In the present invention,
It is preferable that the guide member extends obliquely upward and forward when viewed from the side.

According to the present invention, since the guide member extends obliquely upward and forward, the root of the crop from the conveying terminal end of the first conveying body does not get caught in the front end of the guide member, and the second conveying is carried out. It becomes properly guided between the body and the guide rail.

In the present invention,
A transport end portion of the first transport body and a transport start end portion of the second transport body are arranged to overlap in plan view,
the conveying starting end of the second conveying body is arranged at a position below the conveying end of the first conveying body in a side view, and
It is preferable that the transport starting end portions of the guide member and the guide rail are arranged at a position behind the transport end portion of the first transport body.

According to the present invention, the conveying end portion of the first conveying body and the conveying starting end portion of the second conveying body overlap in plan view, and the conveying starting end portion of the second conveying body overlaps with the first conveying end portion in side view. Due to the fact that the crop is arranged at a position below the conveying end portion of the body, when the crop is transferred from the conveying end portion of the first conveying member to the conveying beginning portion of the second conveying member, the crop is transferred to the first conveying member. can be obtained in contact with both the transport terminal end of the second transport body and the transport start end of the second transport body. As a result, it is possible to improve the reliability of delivery of the crops from the conveying end portion of the first conveying body to the conveying starting end portion of the second conveying body.

In this case, according to the invention, the transport starting ends of the guide members and the guide rails are arranged behind the transport end part of the first transport body, so that the transport end part of the first transport body and the guide While avoiding contact with the member and the guide rail at the beginning of conveyance, the end of conveyance of the first conveying member and the beginning of conveying of the second conveying member can be arranged as described above.

In the present invention,
It is preferable that the front end portion of the guide member is arranged at a position above the conveying end portion of the first conveying body in a side view.

According to the present invention, the front end portion of the guide member extends to a position above the transport end portion of the first transport body, so that the root of the crop from the transport end portion of the first transport body is positioned at the front end of the guide member. It is properly guided between the second conveying body and the guide rail without being caught by the part.

In the present invention,
The front portion of the conveying starting end of the second conveying body is arranged at a lower position than the rear portion of the conveying end portion of the first conveying body, and the conveying starting end of the second conveying body It is preferably arranged obliquely upward along the transport end of the first transport.

Since the first conveying body is configured to convey the crop obliquely upward and rearward while maintaining the crop in an upright position, according to the present invention, the conveying start end of the second conveying body is the conveying end of the first conveying body. It is arranged in a tilted posture obliquely upward along the part.

As a result, when the crop is transferred from the conveying end portion of the first conveying body to the conveying starting end portion of the second conveying body, the crop is transferred to both the conveying end portion of the first conveying body and the conveying starting end portion of the second conveying body. can be obtained over a relatively long range, and the reliability of the transfer of the crop from the conveying terminal end of the first conveying body to the conveying starting end of the second conveying body can be improved. .

In the present invention,
a rotating wheel attached to the second transport body at a position behind the front part of the transport starting end of the second transport body and at a position forward from the rear part of the transport end part of the second transport body; In addition, it is preferable that a position where the rotating wheel and the second conveying body contact each other is arranged at a rear side position of the conveying end portion of the first conveying body in a side view.

According to the present invention, in the area behind the rear end of the first conveying body, the rear portion of the beginning conveying end of the second conveying body is in a state of being inclined upward.
As a result, the root of the crop from the transfer terminal portion of the first carrier leaves the transfer terminal portion of the first carrier and is then guided between the second carrier and the guide rail. Therefore, the first conveying body does not interfere when the base of the crop is guided between the second conveying body and the guide rail.

It is a left side view of an edamame harvester. It is a top view of an edamame harvester. It is a schematic diagram showing a transmission system from the engine to each part. It is a top view of a harvesting part. It is a top view of the vicinity of the rear part of a harvesting part and a separating part. FIG. 6 is a sectional view seen from the VI-VI direction in FIG. 5; FIG. 6 is a cross-sectional view seen from the VII-VII direction in FIG. 5; FIG. 10 is a left side view of the vicinity of the transport end portion of the first transport body, the transport start end portion of the second transport body, the posture changing portion, and the dustproof cover; FIG. 10 is a plan view of the vicinity of the transport end portion of the first transport body, the transport start end portion of the second transport body, and the posture changing portion; It is a vertical rear view showing the transmission system of the first conveying body and the posture changing unit. FIG. 3 is a perspective view of the transportation end portion of the first transport body, the transport start end portion of the second transport body, and the vicinity of the dustproof cover; FIG. 4 is a plan view of the vicinity of the transport end portion of the first transport body and the transport start end portion of the guide rail; FIG. 8 is a longitudinal rear view of the vicinity of the transport start end of the second transport body and the transport start end of the guide rail; It is a longitudinal rear view near a 2nd conveyance body and a guide rail.

1 to 14 show an edamame harvester as an example of a crop harvester.
1 to 14, F indicates the "forward direction" of the airframe 1, B indicates the "backward direction" of the airframe 1, U indicates the "upward direction" of the airframe 1, and D indicates the "downward direction" of the airframe 1. direction. R indicates the "rightward direction" of the aircraft 1, and L indicates the "leftward direction" of the aircraft 1. As shown in FIG.

(Overall configuration of green soybean harvester)
As shown in FIGS. 1 and 2, a machine body 1 is supported by right and left crawler type traveling devices 2, and a harvesting section 3 is provided on the front left part of the machine body 1. An operating section 4 is provided on the right side of the section. A separation section 5 is provided at the rear of the machine body 1 , and a support table 6 and a work deck 7 are provided at the right side of the machine body 1 .

(Outline of harvesting flow in green soybean harvester)
As shown in FIGS. 1 and 2, the harvesting section 3 is provided with right and left first conveying bodies 11 that are rotationally driven around axes P1 and P2 along the oblique vertical direction.

As the machine body 1 advances, the crop A in the upright position in the field is pinched from the right and left sides by the right and left first conveying bodies 11 in the harvesting section 3, and the crop A is clamped by the right and left first conveying bodies 11. A is pulled out and lifted, and while the crop A is maintained in an upright posture, it is conveyed obliquely upward and rearward along 3 to the harvesting section.

On the left side of the separating section 5, a second conveying body 12 that is rotationally driven around an axis in the left-right direction extends rearward from the conveying end portion 11b of the first conveying body 11. The second conveying body 12 A guide rail 13 is arranged along the .

When the crop A reaches the conveying end portion 11b of the first conveying body 11, the crop A in the upright posture is transferred from the conveying end portion 11b of the first conveying body 11 to the conveying starting end portion 12a of the second conveying body 12. It is transferred to the transfer starting end portion 12 a of the second transfer body 12 after being changed to the sideways lying position on the separating section 5 side.
The root A1 (see FIGS. 5 and 8) of the crop A lying sideways is sandwiched (held) between the second conveying body 12 and the guide rail 13, and the second conveying body 12 moves the crop A to the rear side. transported to

As shown in Figs. 9, a collection conveyor 10 arranged in the front-rear direction below the collection conveyor 10, a transfer conveyor 14 arranged in the left-right direction below the rear part of the collection conveyor 10, and a predetermined rear side from the rear part of the collection conveyor 10. A discharge conveyor 15 arranged at intervals and a winnow 16 arranged below the recovery conveyor 10 are provided.

When the crop A lying sideways is conveyed rearward by the second conveying body 12, the crop A first passes between the upper and lower rotors 8, and the rotation of the rotors 8 causes the crop A to grow. A2 is separated, and the separated fruit A2 drops onto the collecting conveyor 10. - 特許庁

The crop A then passes between the upper and lower rotors 9 , and the rotation of the rotors 9 separates the fruit A 2 from the crop A and drops the separated fruit A 2 onto the collecting conveyor 10 . The crop A from which the fruit A2 has been separated is discharged from the conveying end portion 12b of the second conveying body 12 to the field. When the fruit A2 is separated from the crop A by the rotating bodies 8 and 9, debris such as leaves also falls to the collecting conveyor 10 together.

A collecting conveyor 10 is driven to rotate rearward, and the actual A2 and scraps dropped on the collecting conveyor 10 are conveyed rearward by the collecting conveyor 10 and dropped from the rear of the collecting conveyor 10 to a conveying conveyor 14.例文帳に追加

The wind carrying the winnow 16 flows from the lower side of the recovery conveyor 10 to the rear side, passes between the recovery conveyor 10 and the discharge conveyor 15, and flows over the discharge conveyor 15 to the rear side.
When the fruit A2 and scraps fall from the rear part of the collection conveyor 10, the fruit A2 fall against the carrying wind of the winnow 16 and fall onto the transfer conveyor 14.例文帳に追加The scraps are blown by the carrying wind of the winnow 16 and ride on the discharge conveyor 15, and the scraps on the discharge conveyor 15 are conveyed rearward by the discharge conveyor 15 and discharged to the field.

As shown in FIGS. 2 and 5, the transfer conveyor 14 is driven to rotate toward the support table 6, and a large number of collection boxes 17 are placed on the support table 6. As shown in FIG. Fruits A2 that have fallen onto the conveyor 14 are conveyed to the support table 6 side by the conveyor 14 and thrown into a recovery box 17 positioned at the end of the conveyance of the conveyor 14 . When the collection box 17 positioned at the terminal end of the transfer conveyor 14 is full, the auxiliary worker on the work deck 7 replaces it with an empty collection box 17 .

(Configuration of transmission system from engine to each part)
As shown in FIG. 3 , an engine 18 is supported under the operating section 4 . A mission case 19 is supported in the center of the front part of the body 1 in the left-right direction, and a hydrostatic continuously variable transmission 20 is connected to the mission case 19 .

The power of the engine 18 is transmitted to the input shaft of the continuously variable transmission 20 via the transmission belt 21, and the power of the continuously variable transmission 20 is transmitted to the auxiliary transmission (not shown) inside the transmission case 19 and the like. It is transmitted to the traveling device 2 via. The power of the continuously variable transmission 20 is transmitted to the transmission shaft 26 via the gear transmission mechanism 22, the transmission belt 23, the transmission shaft 24, and the transmission belt 25, and the harvesting section 3 and the posture changing section 62 (described later) are transmitted from the transmission shaft 26. (Construction of Posture Changer)).

The power of the engine 18 is transmitted to the drive mechanism 32 via the transmission belt 27, the transmission shaft 28, the transmission belt 29, the transmission shaft 30 and the transmission belt 31, and the drive mechanism 32 rotates the second carrier 12. .

The power of the transmission shaft 28 is transmitted to the collection conveyor 10 and the discharge conveyor 15 via the transmission belt 34, the gear type transmission mechanism 35 and the transmission belt 36, and the collection conveyor 10 and the discharge conveyor 15 are rotationally driven.
The power of the collection conveyor 10 is transmitted to the conveyor 14 via the transmission belt 37, the bevel gear type transmission mechanism 38 and the transmission chain 39, and the conveyor 14 is rotationally driven.

The power of the transmission shaft 28 is transmitted to the winnow 16 via the transmission belt 33, and the winnow 16 is driven to rotate. The power of the transmission shaft 28 is transmitted to the rotating bodies 8 and 9 via the transmission belt 34, the transmission shaft 40 and the transmission belts 41 and 42, so that the rotating bodies 8 and 9 are rotationally driven.

(Configuration of Harvesting Unit (First Conveyor))
As shown in FIGS. 1, 2 and 4, in the harvesting section 3, right and left straight support frames 43 are provided, and a support frame 44 extends under the right and left support frames 43. Concatenated.

Right and left driven pulleys 45 are rotatably supported in front portions of the right and left support frames 43 about an axis P1 along the oblique vertical direction. Right and left driving pulleys 46 are rotatably supported around an axis P2 along the oblique vertical direction at the rear portions of the right and left support frames 43 . In this case, the axis P1 and the axis P2 are parallel to each other.

A right first carrier 11 made of a rubber belt is attached across the right driven pulley 45 and the right drive pulley 46 . A left first carrier 11 made of a rubber belt is attached across the left driven pulley 45 and the left driving pulley 46 .

The right and left first carriages 11 are fitted over the entire length of the support frame 43 . A large number of rollers 47 are rotatably supported by the support frame 43 , and the rollers 47 support the opposite side of the first conveying body 11 to the mating portion (the portion where the crop A is held).
Right and left dividers 48 and subsoilers 49 are attached to the front of the right and left support frames 43 .

The right and left support frames 43 are maintained at equal intervals in the left-right direction, the front part of the support frame 43 is on the lower side, and the rear part of the support frame 43 is on the upper side. A frame 43 is supported on the front left portion of the body 1 along the front-rear direction.

In the first conveying body 11, near the driven pulley 45 is the conveying start end portion 11a, and near the driving pulley 46 is the conveying end portion 11b. As a result, the right and left first conveying bodies 11 are not twisted from the conveying starting end portion 11a of the first conveying body 11 to the conveying terminal end portion 11b, and straightly move toward the rear side of the oblique upper side. has been deferred.

(Configuration of drive system of harvesting section)
As shown in FIGS. 5, 8, and 9, the drive case 50 is supported above the transport end portion 11b of the right first transport body 11, and above the transport end portion 11b of the left first transport body 11, A drive case 51 is supported, and an attitude changer 62 (see (Configuration of attitude changer) described later) is supported on the upper side of the drive case 51 .

A drive shaft 52 is supported by the drive cases 50 and 51 along the axis P2, and a drive pulley 46 is connected to the lower portion of the drive shaft 52. As shown in FIG. A transmission shaft 53 is laterally supported by the drive cases 50 and 51, and a bevel gear 52a of the drive shaft 52 and a bevel gear 53a of the transmission shaft 53 are engaged with each other.

The transmission shaft 26 (see FIG. 3) is arranged along the left-right direction below the conveying end portion 11b of the first conveying body 11, and the pulley 26a of the transmission shaft 26 and the pulley 53b of the transmission shaft 53 A transmission belt 54 is attached across it.

With the above configuration, the power of the transmission shaft 26 is transmitted to the drive shaft 52 via the transmission belt 54 and the transmission shaft 53, and the right drive shaft 52 (the right drive pulley 46) is driven to rotate. The first carrier 11 is rotated counterclockwise in FIGS. 4 and 5 . The left drive shaft 52 (left drive pulley 46) is driven to rotate, and the left first carrier 11 is driven to rotate clockwise in FIGS.

(Structure of second carrier)
As shown in FIGS. 1, 2, 3, and 8, a drive mechanism 32 is supported on the left side of the machine body 1, and the drive mechanism 32 is provided with a drive sprocket 32a that is rotationally driven around an axis in the left-right direction. ing. Rotating wheels 55 and 56 are rotatably supported on the left front part of the machine body 1 around a lateral axis, and a rotating wheel 57 rotates around a lateral axis on the left rear part of the machine body 1. freely supported.

A second carrier 12 is attached across the drive sprocket 32 a of the drive mechanism 32 and the rotating wheels 55 , 56 , 57 . The second transport body 12 is a metal chain, and is provided with a triangular convex portion facing outward when viewed from the side. The drive sprocket 32a of the drive mechanism 32 rotates the second carrier 12 clockwise in FIGS.

The second conveying body 12 extends rearward from the conveying end portion 11b of the first conveying body 11 and is arranged on the left side of the machine body 1 along the front-rear direction. A separating section 5 is arranged. In the second conveying body 12, the portion between the rotating wheel 55 and the rotating wheel 56 is the transport starting end portion 12a, and the vicinity of the rotating wheel 57 is the transport terminal end portion 12b.

As shown in FIGS. 1 and 8, the front portion (the rotating wheel 55 portion) of the transport starting end portion 12a of the second transport body 12 is the rear portion (the rotating wheel 56 portion) of the transport end portion 11b of the first transport body 11 . ), and the transport start end 12a of the second transport body 12 is arranged in an obliquely upward inclined posture along the transport end portion 11b of the first transport body 11. As shown in FIG.
A portion of the second conveying body 12 extending from the rear portion (rotary wheel 56 portion) of the conveying start end portion 12a to the conveying end portion 12b is arranged in a substantially horizontal posture in a side view.

(Configuration of guide rail)
As shown in FIGS. 1, 8, 11, and 14, a support frame 58 is supported in the longitudinal direction on the upper left portion of the body 1, and a large number of support rods 59 are vertically movable on the support frame 58. supported by

In the guide rail 13, short channel-shaped members are arranged in a row along the front-rear direction with the open side facing downward, and the adjacent front and rear channel-shaped members are connected to each other by pins so as to bend in the vertical direction. .

A guide rail 13 extends rearward along the upper side of the second carrier 12 . The aforementioned pin for connecting the channel-shaped member of the guide rail 13 is supported by the lower portion of the support rod 59, and the guide rail 13 (channel-shaped member) is supported so as to be vertically movable. A spring 60 that biases the support rod 59 downward is provided to press the guide rail 13 against the second carrier 12 .

In the guide rail 13, the leading channel-shaped member on the side of the conveying starting end 12a of the second conveying body 12 is the conveying starting end 13a. The transport start end 13a of the guide rail 13 is located slightly behind the rear portion (rotary wheel 56 portion) of the transport start end 12a of the second transport body 12. As shown in FIG.

With the above configuration, as described later in (state of the crop at the transfer portion from the conveying terminal end of the first conveying body to the conveying starting end of the second conveying unit), the root A1 of the crop A is transferred to the second conveying unit. When sandwiched between the body 12 and the guide rail 13, the root A1 of the plant A bends the guide rail 13 and lifts it upward. The root A1 of the crop A is clamped between the guide rail 13 and the guide rail 13 with a sufficient clamping force.

(Configuration of guide member)
As shown in FIGS. 8, 11, 12 and 14, a guide member 61 made of a round bar is provided. A guide member 61 is attached to a side surface 13 a 1 of the transport starting end portion 13 a of the guide rail 13 on the side closer to the separating portion 5 , and the guide member 61 extends forward along the second transport body 12 .

A guide member 61 extends obliquely upward and forward in a side view from the rear portion (rotary wheel 56 portion) of the transport start end portion 12a of the second transport body 12 (see FIG. 8).
A guide member 61 extends obliquely leftward and forward from the rear portion (the portion of the rotating wheel 56) of the transport start end 12a of the second transport body 12 toward the left first transport body 11 in plan view. (See FIG. 12).

Since the guide member 61 is attached to the transfer start end portion 13 a of the guide rail 13 , the guide member 61 moves vertically together with the transfer start end portion 13 a of the guide rail 13 .

(Positional relationship between first carrier, second carrier, and guide rail)
As shown in FIGS. 5, 8, and 9, the transfer end portion 11b of the first transfer body 11 and the transfer start end portion 12a of the second transfer body 12 are arranged to overlap each other in plan view, and the second transfer body No. 12 conveying start end 12a is arranged at a position below the conveying end portion 11b of the first conveying body 11 in a side view.

In a plan view, the second conveying body 12 is conveyed with respect to a virtual line B1 extending along the conveying direction of the first conveying bodies 11 from the portions of the right and left first conveying bodies 11 that face each other and contact each other. The second conveying body 12 is arranged such that the left-right center portion 12c of the starting end portion 12a is displaced to a position closer to the separation portion 5 (right side).

As shown in FIGS. 12 and 14, a side surface 13a1 on the side (right side) of the guide rail 13 closer to the separation section 5 is the same as a side surface 12a1 on the side (right side) of the second carrier 12 near the separation section 5 in plan view. , and the far (left) side surface 12a2.

A side surface 13a2 of the guide rail 13 on the far side (left side) from the separating section 5 is located farther from the separating section 5 ( left).

As shown in FIGS. 5 and 8, the rear portion (the portion of the rotating wheel 56) of the transfer start end portion 12a of the second transfer body 12 is located behind the transfer end portion 11b of the first transfer body 11 in a side view. placed in position. The guide member 61 and the transfer starting end portion 13a of the guide rail 13 are arranged at a position behind the transfer end portion 11b of the first transfer body 11 in a side view.

The transport end portion 11b of the first transport body 11 enters between the front end portion of the guide member 61 and the transport start end portion 12a of the second transport body 12 in a side view. is disposed above the transport end portion 11b of the first transport body 11 in a side view.

(Structure of Posture Changer)
As shown in FIGS. 1 and 2, a posture changer 62 is attached to the upper portion of the transport end portion 11b (drive case 51) of the first transport body 11. As shown in FIGS.

As shown in FIGS. 8, 9, and 10, the posture changing section 62 is provided with a guide section 63, an endless rotating body 64, and a claw body 65. As shown in FIGS.
Two sets of guide portions 63 are provided, one on the upper side and the other on the lower side. It is arranged obliquely to the side (right side) near the separating section 5 . In the guide portion 63, the side portion on the side (right side) closer to the separating portion 5 serves as the guide portion 63a.

In the drive case 51 , the drive shaft 52 extends upward, and the transmission shaft 66 is rotatably supported at the position of the axis P2 of the guide portion 63 . connected through

A drive sprocket 68 is rotatably supported between the upper and lower guide portions 63 , and a transmission chain 69 is attached across the sprocket 66 a of the transmission shaft 66 and the drive sprocket 68 .

A driven sprocket 70 is rotatably supported between the upper and lower guide portions 63 , and a driven sprocket 71 is fitted onto the transmission shaft 66 so as to rotate relative to the driven sprocket 71 . Between the upper and lower guide portions 63, a chain-like endless rotating body 64 is attached across a driving sprocket 68 and driven sprockets 70,71.

As a result, the power of the drive shaft 52 is transmitted to the drive sprocket 68 via the transmission shaft 66 and the transmission chain 69, and the drive sprocket 68 is driven to rotate, thereby driving the endless rotating body 64 to rotate clockwise in FIG. be done.

The claw bodies 65 are attached to the endless rotating body 64 at predetermined intervals along the moving direction of the endless rotating body 64 . The claw body 65 is attached to the endless rotating body 64 so as to be changeable between an active posture protruding outward from the endless rotating body 64 and a non-acting posture falling down along the endless rotating body 64 .

When the pawl 65 is integral with the endless rotating body 64 and is driven to rotate clockwise in FIG. The sprocket 70 is operated to the active posture from the vicinity of the sprocket 70.
When pawl 65 is manipulated into the active position just past driven sprocket 70, it moves from driven sprocket 71 to drive sprocket 68 while maintaining the active position, and is manipulated into the non-active position when it reaches drive sprocket 68. .

(Positional relationship between posture changing unit and first conveying body and second conveying body)
As shown in FIGS. 1 and 8, the posture changing unit 62 is positioned above the transport end portion 11b (drive case 51) of the first transport body 11 in a side view. (driving case 51) and a position away from the rear side.

As shown in FIGS. 1 and 8, the posture changer 62 is arranged obliquely upward in a side view from a position above the transport end portion 11b (drive case 51) of the first transport body 11. And as shown in FIG. 9, it overlaps with the transport start end 12a of the second transport body 12 in a plan view.

As shown in FIGS. 2 and 9, the guide portion 63a of the guide portion 63 in the posture changing portion 62 is shifted from the transport end portion 11b (drive case 51) of the first transport body 11 to the transport start end portion 12a of the second transport body 12. As shown in FIGS. , and is arranged obliquely to the side (right side) closer to the separating portion 5 in a plan view.

The endless rotating body 64 is driven to rotate about an axis extending in the vertical direction, and moves along the guide portion 63a of the guide portion 63 from the conveying end portion 11b (drive case 51) of the first conveying body 11 to the second conveying member. It is in a state of moving to the position of the drive sprocket 68 toward the transport start end portion 12 a of the second transport body 12 .

(Positional relationship of the transmission system to the attitude changing part and the first carrier)
As shown in FIG. 10, the distributing transmission portion 72 is arranged between the conveying end portion 11b of the left first conveying body 11 and the posture changing portion 62. , a drive case 51, a bevel gear 52a of the drive shaft 52 and a bevel gear 53a of the transmission shaft 53 are provided.

A transmission portion 73 is provided to transmit power to the distribution transmission portion 72 from a left outer position with respect to the portion where the first conveying body 11 pinches the crop A. The transmission portion 73 includes a transmission shaft 53, a transmission A pulley 53b of the shaft 53 and a transmission belt 54 are provided.

The drive shaft 52 is a lower transmission shaft that transmits the power transmitted to the distribution transmission portion 72 to the left first carrier 11 located below the distribution transmission portion 72 . The transmission shaft 66 is an upper transmission shaft that transmits the power transmitted to the distribution transmission portion 72 to the posture changing portion 62 located above the distribution transmission portion 72 .

A transmission portion 74 is arranged above the transport end portion 11 b of the right first transport body 11 . is provided with a bevel gear 53a.

A transmission portion 75 is provided for transmitting power to the transmission portion 74 from a right outer position with respect to the portion where the first conveying body 11 pinches the crop A. The transmission portion 75 includes a transmission shaft 53, a transmission shaft 53 pulleys 53b and transmission belts 54 are provided.
The drive shaft 52 is a lower transmission shaft that transmits the power transmitted to the transmission portion 74 to the right first carrier 11 positioned below the transmission portion 74 .

(Structure of Shareholder Support Department)
As shown in FIGS. 8, 11, and 13, with respect to the transport start end 12a of the second transport body 12, the root A1 of the crop A is positioned on the far side (left side) from the separation unit 5 in plan view. A flat plate-shaped stock base support portion 76 is arranged to receive from and guide to the rear side. The stock base support portion 76 extends obliquely downward to the front side along the conveying starting end 12a of the second conveying body 12 from the rear portion (rotary wheel 56 portion) of the conveying starting end 12a of the second conveying body 12. ing.

(Structure of Shareholder Guide Department)
As shown in FIGS. 8, 11, 12, and 13, at the transport start end 12a of the second transport body 12, along the side surface 12a2 of the second transport body 12 on the far side (left side) from the separating section 5, the stock base guide A portion 77 is arranged, and the root guide portion 77 prevents the root A1 of the crop A from separating from the transport start end portion 12a of the second transport body 12. As shown in FIG.

The stock base guide portion 77 is formed in a round bar shape. A rear end portion of the stock base guide portion 77 is arranged near the transfer start end portion 13 a of the guide rail 13 , and the stock base guide portion 77 extends forward along the transfer start end portion 12 a of the second conveying body 12 . It is On the front side from the front portion (rotary wheel 55 portion) of the transfer start end portion 12a of the second transfer body 12, the stock base guide portion 77 extends to the side (left side) away from the transfer start end portion 12a of the second transfer body 12. ing.

A support shaft 77 a facing in the left-right direction is connected to the front end portion of the stock base guide portion 77 . A support shaft 77a of a stock base guide portion 77 is supported by a support portion 78 attached to the machine body 1 so as to be slidable in the left-right direction. A spring 79 is attached to the support shaft 77a of the stock base guide portion 77 for biasing to the 12a side (right side).

A support shaft 77 b directed vertically is connected to the rear end portion of the stock base guide portion 77 . A support shaft 77b of a stock base guide portion 77 is supported by the front portion of the support frame 58 so as to be slidable in the vertical direction. A spring 80 that biases (downward) is attached to the support shaft 77 b of the stock base guide portion 77 .

(Structure of stem guide section)
As shown in FIGS. 4, 8, 11, 12, and 13, the stem portion of the crop A is positioned between the transfer end portion 11b of the first transfer body 11 and the posture changing portion 62 in side view. 12 is provided with a stem portion guide portion 81 for guiding to the conveying starting end portion 12a side (right side).

The stem guide part 81 is formed in the shape of a round bar, and the stem guide part 81 is arranged along the upper part of the conveying terminal part 11b of the left first conveying body 11 and attached to the harvesting part 3. .
The front portion 81a of the stem portion guide portion 81 is located forward of the front portion (rotary wheel 55 portion) of the conveying starting end portion 12a of the second conveying body 12, and is located on the left side of the first conveying body 11 in plan view. , extending to the side (left side) away from the conveying end portion 11b.

The rear portion 81b of the stem portion guide portion 81 is positioned near the upper side of the rear portion (rotary wheel 56 portion) of the transfer starting end portion 12a of the second conveying body 12, and the conveying starting end of the second conveying body 12 in plan view. It extends to the part 12a side (right side).

(Structure of upper guide section)
As shown in FIGS. 1, 2, 8, and 9, in a side view, an upper guide portion 82 that guides the upper portion of the crop A toward the conveying start end portion 12a of the second conveying body 12 is positioned above the posture changing portion 62. is provided.

The upper guide portion 82 has a flat plate shape, and is attached to the upper guide portion 63 along the guide portion 63 a of the upper guide portion 63 in the posture changing portion 62 . The upper guide part 82 is set in an oblique posture so that the part attached to the upper guide part 63 and the upper part thereof face toward the conveying end portion 11b side (right side) of the right first conveying body 11 in plan view. ing.

(Structure of Rear Guide Part and Dustproof Cover)
As shown in FIGS. 1, 8 and 11, a rear guide portion 83 is connected to the front end portion of the support frame 58 . The rear guide part 83 is formed in a flat plate shape, and is set in an oblique posture so as to face the transport end portion 11b side (left side) of the left first transport body 11 in plan view.

As shown in FIGS. 1, 2, 8, and 11, a dustproof cover 84 is attached to the body 1 so as to be positioned on the right side of the posture changer 62. As shown in FIGS. The dustproof cover 84 is formed of a plate material in the shape of a box, and an opening 84a is formed in the left portion of the dustproof cover 84 (the portion on the posture changing portion 62 side).

(Condition of crops at the transfer portion from the transport terminal end of the first transport body to the transport start end of the second transport body)
In the transfer portion from the transport end portion 11b of the first transport body 11 to the transport start end portion 12a of the second transport body 12, the posture of the crop A in the upright posture is changed to the lying posture. The root A1 of the crop A whose posture has been changed from the transport end portion 11b to the sideways posture is sandwiched between the second transport body 12 and the guide rail 13. As shown in FIG.
The flow of the crop A in the above state will be explained as follows.

As shown in FIGS. 1, 2 and 4, in the harvesting unit 3, when the divider 48 is in contact with the field and the subsoiler 49 is in the field, the machine 1 is moved forward. While the subsoiler 49 is breaking up the field, the crop A in the upright position of the field enters the transport start ends 11 a of the first transport bodies 11 on the right and left sides.

The right and left first conveying bodies 11 hold the crop A in the upright posture of the field from the right and left sides, and the right and left first conveying bodies 11 pull out and lift the crop A so that the crop A stands up. While being maintained in the posture, it is transported obliquely upward and rearward along 3 to the harvesting section.

As shown in FIGS. 8, 9, 11, and 12, when the crop A in the standing posture reaches the conveying end portion 11b of the first conveying body 11, the root A1 of the crop A is received by the root support portion 76 from below. While being moved, the left portion of the root A1 of the crop A comes into contact with the root guide portion 77, and the root A1 of the crop A is guided to the transport start end portion 12a of the second carrier 12. As shown in FIG.

Next, in a state where the crop A is sandwiched between the right and left first conveying bodies 11, the root A1 of the crop A is positioned between the conveying starting end portion 12a of the second conveying body 12 and the root guide portion 77. It is sandwiched and comes into contact with the conveying start end 12a of the second conveying body 12, so that the stem base A1 of the crop A is received by the stem base support part 76 from below.

In a state in which the crop A is sandwiched between the right and left first conveying bodies 11, the stem portion of the crop A comes into contact with the stem guide portion 81 and moves toward the conveying start end portion 12a side (right side) of the second conveying body 12. be guided to
Rotation of the claws 65 (endless rotating body 64) of the posture changing portion 62 causes the upper portion of the crop A to enter between the claws 65, and the upper guide portion 82 contacts the upper portion of the crop A. As shown in FIG.

As a result, the crop A is conveyed rearward (to the second conveying body 12 side) by the right and left first conveying bodies 11, and the root A1 of the crop A is conveyed by the conveying start end portion 12a of the second conveying body 12. The root A1 of the crop A is slightly laid sideways.

By rotationally driving the claw body 65 (endless rotating body 64) of the posture changing unit 62, the upper part of the crop A is conveyed by the claw body 65 along the guide part 63a of the guide part 63 to the first conveying body 11. From the terminal end portion 11b toward the transport start end portion 12a of the second transport body 12, a state is created in which a pushing operation is performed.

The guide portion 63a and the claw 65 of the guide portion 63 separate the crop A from the conveying end portion 11b of the first conveying body 11 from the root A1 of the crop A at the portion where the fruit A2 of the crop A is attached. The posture is changed to a sideways posture that is closer to the part 5 (right side). The upper guide part 82 assists the above-described attitude change of the crop A to the lying attitude.

Next, as shown in FIGS. 8, 9, and 13, when the crop leaves the transfer end portion 11b of the first conveying body 11 to the rear side, the attitude of the crop A is changed by the attitude changer 62 to a sideways attitude.
The root A1 of the crop A whose posture has been changed from the transport end portion 11b of the first transport body 11 to the sideways posture is sandwiched between the transport start end portion 12a of the second transport body 12 and the root guide portion 77. , the second conveying body 12 is placed on the conveying start end portion 12a.

At the same time, the upper part of the crop A falls down and enters the opening 84a of the dustproof cover 84, and the rear guide part 83 guides the upper part of the crop A toward the opening 84a of the dustproof cover 84.

Next, the root A1 of the crop A lying sideways is guided by the guide member 61 between the second conveying body 12 and the conveying start end portion 13a of the guide rail 13, and the second conveying body 12 and the guide rail 13 are guided. The crop A is sandwiched between the second conveying body 12 and the guide rails 13, and the crop A is conveyed rearward in a sideways attitude.

(Another form of implementation of the invention)
A harvesting section 3 (first conveying body 11), a second conveying body 12 and a guide rail 13 may be provided on the right part of the front part of the body 1. According to this configuration, the separation section 5 is provided on the left side of the second conveying body 12 and the guide rail 13 .

The present invention can be applied not only to green soybean harvesters but also to crop harvesters for harvesting crop A such as soybeans. It can also be applied to a crop harvester that harvests the crop A while leaving the roots in the field.

5 Separating Part 11 First Conveying Body 11b Conveyance Terminating Part of First Conveying Body 12 Second Conveying Body 12a Conveying Starting End of Second Conveying Body 13 Guide Rail 13a Conveying Starting End of Guide Rail 61 Guide Member A Crop A1 Crop Strain Original A2 Crop fruit P1, P2 Shaft center

Claims (6)

It is rotationally driven around an axis along the oblique vertical direction, holds the crops in the field from the right and left sides, lifts them from the field, and conveys the lifted crops obliquely upward to the rear side while maintaining the upright posture. right and left first carriers;
a second conveying body that is rotationally driven about an axis in the left-right direction and extends rearward from the conveying end portion of the first conveying body;
a guide rail extending rearward along the upper side of the second carrier and supported so as to be vertically movable;
The left and right first conveying bodies have belts, and the crop conveyed with the roots of the crops sandwiched between the belts of the left and right first conveying bodies changes its attitude to a sideways posture at the conveying end of the first conveying bodies. and the crop lying sideways is conveyed in a sandwiched state between the second conveying body and the guide rail,
a separation unit disposed on the right or left side of the second carrier for separating the fruit from the crops carried by the second carrier,
A guide attached to the transport starting end of the guide rail and extending forward to guide the base of the crop from the transport end of the first transport body between the second transport body and the guide rail. provided with components,
The crop harvester, wherein the extending end of the guide member is positioned higher than the upper end in the width direction of the belt at the conveying end portion of the first conveying body. 2. The crop harvesting machine according to claim 1, wherein the guide member extends obliquely upward and forward when viewed from the side. A transport end portion of the first transport body and a transport start end portion of the second transport body are arranged to overlap in plan view,
the conveying starting end of the second conveying body is arranged at a position below the conveying end of the first conveying body in a side view, and
3. The crop harvesting machine according to claim 1, wherein the transport starting end portions of the guide member and the guide rail are arranged at a position on the rear side of the transport end portion of the first transport body. 4. The crop harvester according to claim 3, wherein the front end portion of the guide member is arranged above the transfer end portion of the first transfer body in side view. The front portion of the conveying end portion of the second conveying body is arranged at a lower position than the rear portion of the conveying end portion of the first conveying body, so that the conveying beginning portion of the second conveying body 5. Crop harvesting machine according to claim 3 or 4, arranged in a tilted position obliquely upward along the conveying end of one conveying body. a rotating wheel attached to the second transport body at a position behind the front part of the transport starting end of the second transport body and at a position forward from the rear part of the transport end part of the second transport body; prepared,
6. The crop harvesting machine according to claim 5, wherein a position where said rotating wheel and said second carrier are in contact is arranged at a position on the rear side of the carrying end portion of said first carrier in a side view.

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