JP6753149B2 - Root vegetable harvester - Google Patents

Description

The present invention relates to a root vegetable harvester that pulls out a crop from a field, harvests it, and collects it.

The conventional root vegetable harvester has a technology that separates the entanglement of the foliage of the crop before it is pinched by the pull-out transport device, and also has a pulling device that raises the foliage and brings it closer to the pinching start end of the pull-out transport device. To do. (Patent Document 1)
As a result, it is possible to prevent the foliage of the adjacent crop from being pulled out from the soil by sandwiching the foliage of the adjacent crop together with the foliage of the crop to be harvested, and it is possible to prevent crops that cannot be harvested by the pull-out transport device and are left in the field. Will be done.

Further, by bringing the foliage portion closer to the sandwiching start end portion of the pull-out transport device, the foliage portion is sandwiched together, so that the foliage portion is prevented from being torn off and the crop is left unplugged at the time of pulling out.

By reducing the amount of crops left in the field, the time and effort required to manually collect the leftover crops is reduced.

Japanese Unexamined Patent Publication No. 2015-226519

However, in the root vegetable harvester described in Patent Document 1, since the raising device is integrally provided with the drawing and transporting device, the raising and lowering position of the pulling and transporting device changes. Since the raising and lowering of the pull-out transport device is changed according to the length of the foliage of the crop and the height of the field scene, the raising device is separated upward from the foliage and the foliage of the crop is entangled with each other. There is a problem that the crops of the strips adjacent to the strips being pulled out cannot be pulled out in the next process.

In addition, if the foliage is not guided to the pinching start end of the pull-out transport device, the pull-out transport device cannot pinch a sufficient amount of the foliage, and the foliage is torn during pulling, leaving the crop in the field. There's a problem.

Due to the above problem, it becomes necessary for the worker to manually collect the leftover crop, so that there is a problem that the time and labor required for the work increase.

Alternatively, there is a problem that the raising device comes into contact with the field scene to cause an overload and the raising device is damaged.

In addition, there is a problem that the raising device scatters the soil in the field scene, and the scattered soil covers the foliage of the crop before drawing, which hinders the pulling work by the pulling and transporting device.

The present invention provides a root vegetable harvester capable of adjusting the vertical position of the raising device separately from the vertical position of the pull-out transport device, and properly raising the foliage and pulling out the crop. The purpose.

The invention according to claim 1 is provided with a pull-out transport device (24L, 24R) for pulling out and transporting the crop to be vegetated in the field, separating the entanglement of the foliage of the crop and pulling out the foliage of the crop of the harvest strip. In a root vegetable harvester provided with a raising device that guides the pinching and transporting action area of the transporting device (24L, 24R).
The provided withdrawing conveying device (24L, 24R) to the right, caused to be connected the withdrawal conveyor device (24L, 24R) and the left and right lifting members for lifting the (18, 18), the one of left and right sides of the Pick device and caused to rotate motor (94) rotates the mounting arm (93), left and right individual operating members (81L, 81R) for operating separately lifting member (18, 18) of the left and right, the left and right lifting An interlocking operation member (14) that simultaneously operates the members (18, 18), a plurality of crop detection members (90) that detect the transport of crops to the pull-out transport device (24L, 24R), and the plurality of crop detection members. A control device (100) for receiving the detection result of (90) is provided, and the control device (100) determines that the plurality of crop detection members (90) are in a non-detection state for a predetermined number of crops or more. The pull-up mounting arm (93) is pulled up so as to rotate downward to operate the rotation motor (94), and the left and right pull-out transport devices (24L, 24R) are cropped on one side on the left and right and on the other side. Soilers (31, 31) for unraveling the soil around the crops are provided, and a central soyra (36) for unraveling the soil between crops is provided between the left and right of the left and right drawing and transporting devices (24L, 24R). 36) is composed of left and right crushers (36b, 36b), and is provided with an adjusting member (37) for adjusting the rotation angle of the left and right crushers (36b, 36b), and the rotation angle is adjusted. By changing the type, the root vegetable harvester is characterized in that the tip positions of the left and right earth-melting bodies (36b, 36b) can be changed .

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The invention according to claim 2 provides a traveling operation member (13) for changing the forward / backward movement and traveling speed of the airframe, and grips the left and right individual operating members (81L, 81R) to grip the traveling operating member (13). The root vegetable harvester according to claim 1, wherein the root vegetable harvester is provided on the surface of the part (13a) on the front side of the machine body .

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According to the invention of claim 1 , since the left and right pull-out transport devices (24L, 24R) can be raised and lowered separately by the left and right individual operating members (81L, 81R), the state of the foliage of the left and right crops and the field. The pulling work height can be adjusted regardless of the difference in surface height, and the crops are prevented from being left behind.

Further, since the left and right pull-out transport devices (24L, 24R) can be raised and lowered at the same time by operating the interlocking operation member (14), the left and right pull-out transport devices (24L, 24R) can be moved up and down at the start of the pull-out work and at the time of storage. There is no need to move up and down separately, improving work efficiency.
Further, when the crop detection of the crop detection member (90) is interrupted, the control device (100) sends the foliage portion to the transport device (24L, 24R) because the raising action position of the raising device is too high. By activating the rotation motor (94) so that the raising and mounting arm (93) rotates downward, it is possible to measure the optimization of the raising action height, so that the crop can be pulled out. It is possible to prevent leaving.
Further, the central soil (36) is composed of left and right crushed bodies (36b, 36b), and an adjusting member (37) for adjusting the rotation angle of the left and right crushed bodies (36b, 36b) is provided. By changing the rotation angle, the tip positions of the left and right crushers (36b, 36b) can be changed, so that the left and right crushers (36b, 36b) can be changed according to the left-right spacing and soil quality of the crop. Since the action position of 36b, 36b) can be changed, the crop can be reliably pulled out and harvested.
In addition, since it is possible to prevent the left and right excavated bodies (36b, 36b) from coming into contact with the crop, the quotient
Deterioration of product value is prevented.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the left and right individual operation members (81L, 81R) are provided on the traveling operation member (13), so that the traveling speed is adjusted and left and right. Since the height of the pulling work can be adjusted, it is not necessary to stop the running at the time of adjustment, and a decrease in work efficiency is prevented.

Further, when the pull-out height cannot be adjusted in time, the deceleration operation can be performed, so that the left and right pull-out transport devices (24L, 24R) can be set to the pull-out work height according to the carrot.
Further, since the left side lift switch (81L) and the right side lift switch (81R) are provided on the surface of the grip portion (13a) on the front side of the machine body, the operation can be performed with the fingers of the operator.

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Side view of root vegetable harvester Top view of root vegetable harvester Front view of root vegetable harvester Rear view of root vegetable harvester Top view of the excavation frame Side view of the main part of the excavation frame (A) Plan view of the main part showing the central soyra, (b) Plan view of the main part showing the rotational state of the central soyer, (c) Side view of the main part showing the central soyra. Front view of the main part showing a modified example of the central soira (A) Rear view of the main part showing the arrangement relationship of the left and right pull-out transport devices, (b) Side view of the main part showing the arrangement relationship of the left and right pull-out transport devices. Rear view of the main part showing the arrangement relationship between the left and right foliage transport devices and the left and right leaf removal transport devices Top view showing a modified example of the excavation frame Front view of the main part of the traveling operation lever equipped with left and right lift switches Side view of a root vegetable harvester equipped with a carrot detection member and an elevating mechanism for a raising device Block diagram showing the relationship between each input device and output device

Embodiments of the present invention will be described.

As shown in FIGS. 1 to 10, the carrot harvester, which is a kind of root vegetable harvester shown as one of the examples, has a traveling unit A for traveling the aircraft, a control unit B for the operator to board, and the aircraft. A harvesting section C that pulls out carrots from the field on one side on the left and right and transports them to the rear upper side of the machine, a foliage cutting section D that cuts the foliage while taking over the carrots from the harvesting section C and transporting them to the rear of the machine, and a foliage cutting section. The residual leaf processing unit E that receives the carrots that fall from D and processes the foliage remaining in the carrots, and the residual leaf processing unit E that takes over the carrots and transports the carrots from one left and right side of the machine to the other left and right. A sorting and transporting unit F in which an auxiliary worker sorts the carrots inside, a collecting unit G for arranging a carrot accommodating member discharged from the sorting and transporting unit F, and a bottom of the accommodating member are placed and discharged to the field. It is composed of a loading / discharging unit H.

In this case, in the plan view, the left side with respect to the traveling direction of the aircraft is referred to as one left and right side of the aircraft, and the right side with respect to the traveling direction of the aircraft is referred to as the other left and right sides of the aircraft. The details of each part will be described in detail below.

First, the configuration of the traveling unit A will be described.

As shown in FIGS. 1 to 4, below the fuselage frame 1, the left and right drive sprockets 2 and 2 on the front side of the fuselage, the left and right driven wheels 3 and 3 on the rear side of the fuselage, and the left and right drive sprockets 2 and 2 and the left and right followers. The left and right belts 5 and 5 are wound around a plurality of rolling wheels 4, 4 ... Attached between the driving wheels 3 and 3 to form the left and right crawler 6L and 6R. Then, the left and right drive sprockets 2 and 2 of the left and right crawlers 6L and 6R are attached to the left and right drive shafts 9 and 9 extending from the mission case 8 to which the power of the engine is transmitted to the left and right sides, and a constant left and right interval is provided. The left and right crawlers 6L and 6R are attached to the machine frame 1. Further, a hydraulic continuously variable transmission (hereinafter, HST) for switching the drive output and output direction of the left and right crawlers 6L and 6R to forward and backward is provided on the machine body.

Next, the configuration of the control unit B will be described.

As shown in FIGS. 1 to 4, the control frame 10 is attached to the upper right side of the fuselage frame 1, the control seat 11 is attached to the control frame 10, and the control panel 12 is attached to the front side of the fuselage. Then, a traveling operation lever 13 for switching the output and output direction of the HST to switch the forward / backward movement and traveling speed of the aircraft is attached to the control panel 12, and the left / right turning operation of the aircraft and the working height of the harvesting section C are performed. The elevating operation lever 14 for operating the above is attached. As a result, the control unit B is configured.

With the above configuration, by providing a control member such as a traveling operation lever 13 and an elevating operation lever 14 that can perform a plurality of operations with one, the operation of the aircraft can be facilitated and the work of the operator can be reduced. ..

Next, the configurations of the harvesting portion C and the foliage cutting portion D will be described.

As shown in FIGS. 1 to 6, a rotating frame 15 in the left-right direction is provided at the rear part on one left and right side of the airframe frame 1 and at the upper part, and the excavation frame 16L is provided on the front side and both left and right sides of the rotating frame 15. , 16R are provided, and a central excavation frame 16C is provided between the left and right excavation frames 16L and 16R. Then, the vicinity of the center between the front and rear of the left and right excavation frames 16L and 16R is connected by a gate-shaped support arm 17, and the harvesting portion C and the foliage cutting portion D are connected to the support arm 17 and the airframe frame 1. An elevating cylinder 18 that can be rotated up and down is provided so as to be expandable and contractible. The lifting operation of the elevating cylinder 18 is performed by the operator operating the elevating operation lever 14.

The central excavation frame 16C is formed with a frame-shaped opening in a plan view for the elevating cylinder 18 to pass through. This opening is formed on the frame between the front and rear of the central excavation frame 16C.

Further, a rear transmission case 19 for transmitting a driving force is provided at the rear portion of the rotating frame 15, and a branch transmission case 19 for transmitting the driving force to the left and right pull-out transport devices 24L and 24R described later is provided at the upper portion of the rear transmission case 19. A pair of left and right transmission shaft cases 20 and 20 are provided, and the left and right branch transmission cases 20 and 20 are provided with left and right transmission shaft cases 21 and 21 facing upward on the front side of the machine body, respectively. Further, at the upper ends of the left and right transmission shaft cases 21 and 21, deceleration cases 22 and 22 that transmit to the left and right extraction drive pulleys 25 and 25 of the left and right extraction transfer devices 24L and 24R are provided, respectively.

Of the left and right transmission shaft cases 21 and 21, the one that is transmitted to the left side pull-out transfer device 24L provided on one left and right side (outside the machine body) is provided on the left and right other side (inside the machine body), and the right side pull-out transfer device 24R is provided. The transport start end of the pull-out transport device 24L on the left side is located on the front side of the machine body of the transport start end of the pull-out transport device 24R on the right side. At this time, as shown in FIGS. 1 and 4, the transport end portions of the left and right pull-out transport devices 24L and 24R are located at the same height in the side view.

Then, the left and right deceleration cases 22 and 22 are provided with the left and right pull-out transport devices 24L and 24R in a downward inclined posture toward the front side of the machine body. The left and right pull-out transport devices 24L and 24R will be described below, but since the left and right configurations are the same, the configuration of the pull-out transport device 24L will be described.

In the pull-out transfer device 24L, a pair of left and right pull-out frames 23i, 23o are provided in the left and right deceleration cases 22 and 22, and driving force is driven from the left and right deceleration cases 22 and 22 on the rear end side of the left and right pull-out frames 23i and 23o. Pull-out drive pulleys 25 and 25 that receive and rotate are provided, respectively. Further, pull-out driven pulleys 26 and 26 are provided on the front end side of the left and right pull-out frames 23i and 23o, respectively, and the carrot foliage portion is sandwiched between the left and right pull-out drive pulleys 25 and 25 and the pull-out driven pulleys 26 and 26. The pull-out belts 27 and 27 to be wound are wound endlessly, respectively.

Then, within the winding region of the left and right pull-out belts 27, 27, and on the holding and transporting action side, that is, on the side where the left and right pull-out belts 27, 27 face each other, a plurality of holding tension rollers for maintaining the holding force. 28, 28 ... Are provided. On the other hand, on the non-pinching and transporting action side, a plurality of support tension rollers 29, 29 ... For contacting the pulling belts 27 and 27 from inside and outside the winding range to suppress slack are provided, and the pulling and transporting device 24L is provided. Is configured.

Below the left and right pull-out transport devices 24L and 24R, unnecessary portion cutting devices 70 and 70 for removing unnecessary portions, so-called whiskers, on the lower side of the carrot being transported are provided, respectively. The left and right unnecessary portion cutting devices 70, 70 are provided at the left and right spacing portions of the left and right excavation frames 16L and 16R and the central excavation frame 16C, respectively, and the cut whiskers are dropped downward.

With the above configuration, two rows of carrots can be pulled out at the same time, so that the time required for the carrot pulling and harvesting work is shortened and the work efficiency is improved.

The diameter of the pull-out driven pulleys 26 and 26 on the side in contact with the other pull-out transfer device 24R may be changed to a diameter smaller than the diameter on the non-contact side. As an example, the diameter of the pull-out driven pulley 26 on the contact side is about half the diameter of the pull-out driven pulley 26 on the non-contact side.

As a result, the position of the pinching start end can be changed according to the left-right spacing of the carrots, so that two rows of carrots can be reliably harvested at the same time, and work efficiency is improved.

By using the pull-out driven pulleys 26 and 26 having a small diameter, the left-right widths of the left and right pull-out transfer devices 24L and 24R can be suppressed, so that the size of the machine body can be suppressed.

Further, front portions of the left and right excavation frames 16L and 16R are provided with front extension frames 30 facing downward on the front side of the machine, respectively, and the left and right extension frames 30 and 30 are provided with a soyra 31 that dissolves the soil around the carrot. , 31 are provided respectively. The left and right excavation frames 16L and 16R are provided with swinging devices 32 and 32 that swing the left and right soyers 31 and 31 in conjunction with the traveling of the machine body, respectively, and the left and right swinging devices 32, respectively. The base side of 32 is connected by the soira transmission shaft 33.

Further, as shown in FIGS. 1 to 3 and 7 (a), (b), and 7 (c), a th-order traveling downward between the left and right soiras 31 and 31 and toward the left and right central portion of the soira transmission shaft 33. A 1-bevel case 34 is provided, a second bevel case 35 is provided in a posture of inclining downward from the first bevel case 34 to the front side of the machine body, and a central soyra that dissolves the soil around the carrot is provided at the lower part of the front end of the second bevel case 35. The blade 36 is provided so as to be rotatable left and right with the vertical axis as a fulcrum. At the connecting portion between the first bevel case 34 and the second bevel case 35, a first earth cutting blade 37a for cutting soil to reduce resistance is provided, and the front portion of the second bevel case 35 and the upper surface of the central soiler blade 36 are provided. A second earth cutting blade 37b is provided between them to reduce the resistance of the soil.

The central soyer blade 36 has a V-shape in which the left and right central portions are located on the frontmost side and the left and right end portions are located on the rearmost side, and the front portion alternately forms irregularities in the left and right directions to perform earth cutting performance. Shall be improved. Further, the central soiler blade 36 is arranged so as to perform an earth-melting action above the lower ends of the left and right soilers 31, 31. Further, the space between the left and right soyers 31 and 31 and the left and right of the central soyra blade 36 is wider than the vegetation interval of carrots, and even if the left and right positions of the left and right drawing and transporting devices 24L and 24R are displaced due to some operation mistakes, The left and right soylars 31, 31 and the central soyra blade 36 are hard to come into contact with the carrot.

As shown in FIG. 8, the central soyra blade 36 is provided with left and right rotating blades 36b and 36b vertically and horizontally on the rotating portion 36a rotated by the second bevel case 35, and the left and right rotating blades 36b and 36b are vertically rotatable. An adjusting screw 37 for adjusting the rotation angle of the left and right rotating blades 36b, 36b may be provided between the left and right of the rotating blades 36b, 36b.

As a result, the central soyra blade 36 has an inverted V shape in front view, and by changing the angle at which the V shape is formed, the tips of the left and right rotating blades 36b and 36b of the central soyra blade 36 are arranged at intervals of carrot vegetation. Since the position can be changed, the left and right rotating blades 36b and 36b are prevented from coming into contact with the carrot and being damaged.

The left and right extending frames 30 and 30 each support the drawing frame 23o on the outside of the machine body among the left and right drawing frames 23i and 23o, and the first transmission case 34 supports the drawing frame 23i on the inside of the machine body. The configuration is to be used.

As a result, the angles of the left and right pull-out transport devices 24L and 24R are maintained at an angle suitable for the swinging action of the left and right soyers 31, 31 and the central soyer blade 36, and the left and right pull-out transport devices 24L and 24R are firmly established. Since it is supported, the strength is improved.

Further, on the front side of the pull-out transport device 24L on the outside of the machine body, a vertical raising device 38 for separating the entanglement of the carrot harvesting work line and the foliage of the carrot vegetated on the adjacent non-work line is provided, and the machine body is provided. On the front side of the machine body of the inner pull-out transport device 24R, a lateral pull-up device 39 is provided which raises the foliage portion and moves it to the pinch transport action portion of the pull-out transport device 24R. In the lower part of the front side of the body of the lateral raising device 39, a cursive script 40 is provided which lifts the foliage portion hanging on the surface of the field and guides it to the lateral raising device 39.

Further, between the left and right of the left and right pull-out transport devices 24L and 24R, between the left and right of the vertical pull-up device 38 and the horizontal pull-up device 39, the carrot foliage and the inside of the machine are pulled out by the pull-out transport device 24L on the outside of the machine body. A second vertical raising device 41 is provided to separate the entanglement of the foliage portion of the carrot to be pulled out by the pulling-out transport device 24R.

By separating the entanglement of the foliage of the carrots between the vertical raising device 38 and the second vertical raising device 41, it is possible to prevent the left and right drawing and transporting devices 24L and 24R from pulling out non-working strips and adjacent carrots. , It is prevented that carrots that cannot be pinched and pulled out remain in the field.

Although the pull-out transport device 24L on the outside of the machine body is provided with the vertical pull-up device 38, it is not provided with the horizontal pull-up device for guiding the foliage portion to the pinching and transporting action area. Therefore, at the rear portion of the second vertical raising device 41, foliage guide bodies 42, 42 that are directed upward on the rear side of the machine body from the start end portions of the left and right pull-out transport devices 24L and 24R are provided, respectively. The left and right foliage guides 42, 42 are made of elastic bodies, and are deformed when a load is applied such as entanglement of the foliage to prevent clogging of the foliage. Further, if the color is easily distinguished from the green color of the foliage, for example, a red fluorescent color and is easily visible to the operator boarding the driver's seat 11, the starting end of the pinching transport can be easily grasped and the carrot pulling position. It becomes easier to match and prevents the carrots from being pulled out.

Then, at the rear of the left and right pull-out transport devices 24L and 24R, and to the left and right branch transmission cases 20 and 20, the foliage transport device that takes over the foliage portions from the left and right pull-out transport devices 24L and 24R and conveys them to the rear of the machine body. 43 and 43 are provided, respectively, and leaf-removing transport devices 44 and 44 are provided, respectively, which take over the foliage portions from the left and right pull-out transport devices 24L and 24R on the rear side of the machine body and carry them to the rear of the machine body.

Further, on the front side and the lower part of the left and right foliage transport devices 43, 43, the cutting position of the foliage portion receives the upper part of the root portion (harvest portion) of the carrot being transported by the left and right pull-out transport devices 24L, 24R. The shoulder alignment devices 45 and 45 for defining the above are provided, and the foliage cutting blades 46, 46: 46, 46 for cutting the boundary between the foliage portion and the root portion are provided behind the left and right shoulder alignment devices 45 and 45, respectively.

Then, at the transport end portions of the left and right foliage transport devices 43, 43 and the left and right leaf leaf transport devices 44, 44, the leaf leaf shooters 47, 47 that guide the discharged foliage portions to the left and right crawlers 6L, 6R side. Is provided. The leaf-removing shooter 47 on the inside of the machine body drops the foliage between the left and right crawlers 6L and 6R, and the leaf-removing shooter 47 on the outside of the machine body drops the foliage on the left crawler 6L and is discharged. Make sure that the foliage does not cover the carrots before harvesting, which are adjacent to the pull-out transport device 24L on the outside of the machine.

As a result, the foliage can be excised from the root at a fixed position, so that it is possible to prevent the foliage from remaining too much and increase the labor required for the removal work in the subsequent process, and the root is cut to produce a product. It prevents the value from being reduced.

As shown in FIGS. 9A and 9B, the pull-out belt 27 inside the machine body of the pull-out transport device 24L on the outside of the machine body and the pull-out belt 27 inside the machine body of the pull-out transport device 24R inside the machine body are each in two upper and lower stages. The pinching action portions 27a and 27a are arranged so that one side is on the top and the other side is on the bottom so that the pinching action portions 27a and 27a are engaged with each other to suppress the left and right widths of the left and right pull-out transport devices 24L and 24R. It is configured.

In addition to this, as shown in FIG. 10, the left and right foliage transport devices 43, 43 and the foliage transport devices 44, 44 are also attached to the foliage transport belts 43a, 43a inside the machine body, respectively. , 43b, and the upper and lower two-stage leaf-removing pinching action portions 44b and 44b are formed on the leaf-removing transport belts 44a and 44a, and the foliage-pinching acting portions 43b and 43b and the leaf-removing pinching action portions 44b and 44b are bitten, respectively. The configuration is such that the left and right foliage transport devices 43, 43 and the leaf removal transport devices 44, 44 are suppressed in width.

As a result, even if the left and right pull-out transport devices 24L and 24R can be used to pull out and harvest two carrots at the same time, the increase in the left-right width of the machine can be suppressed, so that the increase in the storage space of the machine can be suppressed and the machine can be moved. It is prevented from being damaged by contact with the surroundings.

As described above, the harvesting portion C and the foliage cutting portion D are configured.

The harvesting section C is configured to raise and lower the left and right pull-out transport devices 24L and 24R by the elevating cylinder 18, but in this method, there is a large difference in the vertical position of the left and right carrots to be pulled out by the left and right pull-out transport devices 24L and 24R. If there is, one of the carrots may fail to be pulled out.

As shown in FIG. 11, the left center excavation frame 16CL and the right center excavation frame 16CR are provided at the left and right center portions of the left and right excavation frames 16L and 16R so as to be vertically rotatable with the rotation frame 15 as a fulcrum. The left side excavation frame 16L and the left center excavation frame 16CL support the pull-out transfer device 24L on one left and right side, and the right side excavation frame 16R and the right center excavation frame 16CR support the left and right other side extraction transfer device 24R. To support.

Then, the left side excavation frame 16L and the left center excavation frame 16CL, and the right side excavation frame 16R and the right center excavation frame 16CR are connected by support arms 17 and 17, respectively, and the left and right support arms 17, 17 and the airframe frame 1 are connected by elevating cylinders 18 and 18, respectively.

Further, left and right shoulder alignment devices 45, 45, left and right foliage transport devices 43, 43, and leaf removal transport devices 44, 44 are provided at the rear of the left and right pull-out transport devices 24L, 24R, respectively, and the left and right pull-out transport devices are provided. It is configured to rotate up and down together with 24L and 24R.

As a result, the pull-out heights of the left and right pull-out transport devices 24L and 24R can be adjusted separately according to the size of the carrot and the condition of the foliage, so that the foliage cannot be pinched and the carrots left behind can be prevented. This reduces the time and effort required for the worker to collect.

The left and right pull-out transport devices 24L and 24R are raised and lowered by expanding and contracting the lift cylinder 18 in accordance with the operation of the lift operation lever 14, but the left and right pull-out transport devices 24L and 24R are used by the left and right lift cylinders 18 and 18. In the configuration in which the two levers are rotated separately, two elevating operation levers 14 are required. However, the elevating operation lever 14 operates the left and right crawlers 6L and 6R to steer the airframe, and due to the structure of the control unit B, arranging a plurality of the elevating operation lever 14 requires a significant design change.

As shown in FIGS. 12 and 14, in order to operate the left and right pull-out transport devices 24L and 24R separately without increasing the elevating operation lever 14, the left and right sides of the grip portion 13a of the traveling operation lever 13 are on the front side of the machine body. A left-side elevating switch 81L that expands and contracts the elevating cylinder 18 that rotates the side pull-out transport device 24L up and down, and a right-side elevating switch 81R that expands and contracts the elevating cylinder 18 that rotates the left and right other side pull-out transport device 24R up and down are provided. ..

The left side lift switch 81L and the right side lift switch 81R can be pushed upward and downward, and are continuously raised and lowered while being pushed.

As an example, when the traveling operation lever 13 is arranged on the left side of the control seat 11, the left elevating switch 81L is arranged at a position where it can be easily operated by the middle finger of the operator, and the right elevating switch 81R is arranged on the operator's side. It shall be placed in a position where it can be easily operated with the index finger.

Then, when the lifting operation lever 14 is lifted and lowered, the left and right lifting cylinders 18 and 18 are simultaneously expanded and contracted. At this time, even if there is a difference in the amount of expansion and contraction of the left and right elevating cylinders 18 and 18, the left and right drawing and transporting devices 24L and 24R can be operated until they reach the maximum ascending position or the maximum descending position.

The range in which the left and right pull-out transport devices 24L and 24R can be lifted and lowered by the left and right lift switches 81L and 81R is set to be narrower than the range in which the lift and lowering operation lever 14 can be lifted and lowered. When the left and right pull-out transport devices 24L and 24R are moved up and down at the same time, it is desirable that the elevating cylinder 18 on the side that reaches the maximum ascending position or the maximum descending position is less likely to be overloaded.

As described above, the pulling work heights of the left and right pulling and transporting devices 24L and 24R can be adjusted by operating the left and right lifting switches 81L and 81R provided on the traveling operation lever 13, so that the foliage portion is left in the field without being pinched. The generation of ginseng is prevented, and the time and labor required for collection work is reduced.

Further, since the height of the left and right pulling work can be adjusted while adjusting the running speed, it is not necessary to stop the running at the time of adjustment, and the work efficiency is prevented from being lowered.

Then, when moving without pulling out work or at the start of pulling out work, the left and right pulling out transport devices 24L and 24R can be raised and lowered at the same time by operating the lifting operation lever 14, so that the number of operations is reduced and the operability is reduced. And work efficiency can be improved.

If the raising action positions of the vertical raising device 38, the second vertical raising device 41, and the horizontal raising device 39 do not match the vegetation state of the foliage portion, the left and right pull-out transport devices 24L and 24R sandwich the foliage portion. There is a problem that many carrots are left behind in the field. However, since the distance between ginseng is narrow and the foliage parts are easily approached to each other, it may be difficult to visually judge the change in the raising action position according to the vegetation state.

As shown in FIGS. 13 and 14, the carrot detecting member 90 that detects the carrot during pinching and transporting from the vicinity of the rear portion of the left and right soylas 31 and 31 to the vicinity of the front portion of the left and right shoulder aligning devices 45 and 45. Is provided. The ginseng detection member 90 is preferably a non-contact sensor such as a camera 91 or a photoelectric sensor 92, but detects that a rod or the like made of a soft material comes into contact with the ginseng and rotates so as not to damage the ginseng. It may be a contact sensor.

Since the left and right pull-out transport devices 24L and 24R are for continuously sandwiching and transporting a plurality of carrots, the carrot detection member 90 can detect a wide range or is arranged in plurality along the transport direction. Shall be. Then, from the number of pixels detected with respect to the traveling speed, the interval of the detection time between the sensors, and the like, it is determined whether the carrots are normally harvested or whether the carrots are left uncut. If leftovers occur, the detection of pixels of the color indicating carrot (orange, orange, etc.) and the color indicating soil (black, brown, etc.) will be interrupted, or the detection time difference of each sensor will increase, so judgment can be made. It is possible.

Then, a pull-up rotation motor 94 for rotating the pull-up mounting arm 93 connected to one left and right side surface of the vertical pull-up device 38 is provided, and the vertical pull-up device 38, the second The raising action position of the vertical raising device 41 and the horizontal raising device 39 is configured to be adjustable. The control unit B is provided with a raising adjustment dial 95 for operating the raising rotation motor 94 to adjust the raising action position.

Further, a control device 100 is provided which raises and operates the rotation motor 94 in accordance with the detection of the carrot detection member 90.

When the carrot detection member 90 continuously detects the carrot, it is determined that the carrot is normally pulled out and harvested, and the control device 100 raises and rotates unless the adjustment dial 95 is operated. Do not operate the motor 94. On the other hand, when the ginseng detection of the ginseng detection member 90 is interrupted, the control device 100 has the vertical raising device 38, the second vertical raising device 41, and the horizontal raising device 39 because the raising action positions are too high and the foliage portion. Is not fed to the left and right pull-out transport devices 24L and 24R, and is pulled up in the direction in which the mounting arm 93 rotates downward to operate the rotation motor 94.

When the amount of downward rotation of the raising and mounting arm 93 is large, the vertical raising device 38, the second vertical raising device 41, and the horizontal raising device 39 come into contact with the field scene, and the vertical raising device 38 and the second vertical raising device 38 and the second vertical raising device 39 come into contact with each other. Since the raising device 41 and the lateral raising device 39 will be damaged or the field scene will be damaged, the amount of descent is set to about 1 to 3 cm, and the operator is notified by a notification member 96 such as a buzzer. As a result, the operator can quickly make finer adjustments with the raising adjustment dial 95, and the occurrence of unplugged parts is prevented.

In addition, since there is a time lag between the judgment of the unplugged part and the actual change of the raising action height, if the raising action height is changed every time the unplugged part is detected, the raising action is rather raised. Inappropriate height can lead to increased carrot residue. In order to prevent this, for example, when the carrot is not captured in the camera 91 over a range corresponding to 3 to 5 or more carrots, or the photoelectric sensor 92 is in the non-detection state, the control device 100 is raised. When the rotation motor 94 is operated, the optimization of the raising action height is measured.

Next, the residual leaf processing unit E and the sorting and transporting unit F will be described.

As shown in FIGS. 1 and 2, below the left and right foliage cutting blades 46, 46: 46, 46, the carrots that have been cut and fallen are received and transported from one left and right side to the other left and right sides. A foliage processing conveyor 48 is provided, and the carrots are moved to the left and right other sides and to the front side of the machine while removing the foliage portion remaining at the root near the left and right intermediate positions in the transport direction and the transport end side of the foliage processing conveyor 48. Processing rollers 49 and 49 are provided, respectively.

The left and right residual leaf processing rollers 49, 49 are arranged in an inclined posture in which the end side is located on the lower side in the transport direction of the foliage processing conveyor 48 than the base side in a plan view. As a result, the foliage processing unit E is configured.

As described above, by providing the left and right foliage processing rollers 49 and 49 on the foliage processing conveyor 48, the foliage portion remaining on the root of the carrot transported by the left and right extraction and transporting devices 24L and 24R can be treated separately. The amount of carrots that move to the sorting conveyor 50 without contacting the foliage treatment roller 49 and leaving the foliage at the root is reduced, and the time and labor required to remove the foliage remaining at the root in the subsequent process is reduced. Will be done.

Then, on the front side of the foliage processing conveyor 48, the carrots discharged from the foliage processing conveyor 48 and the carrots whose foliage portions are torn off and fallen during transportation of the left and right drawing and transporting devices 24L and 24R are received on one side on the left and right sides. A sorting conveyor 50 is provided to carry the carrots to the left and right sides. The transport start end of the sorting conveyor 50 is arranged closer to the left and right sides than the pinch transport path of the pull-out transport device 24L on the left and right sides, and the carrots that fall due to the foliage being torn off are reliably received and the carrots are outside the transport path. It shall be prevented from moving and the labor required for the collection work shall be reduced.

Further, the transport start end side of the sorting conveyor 50 is arranged below the foliage processing conveyor 48 so that the carrots being transported by the sorting conveyor 50 do not return to the foliage processing conveyor 48.

The sorting conveyor 50 is composed of a fixed conveyor 51 and a rotating conveyor 52 that can rotate vertically, and a rotating cylinder 53 that raises and lowers the rotating conveyor 51 is provided below the rotating conveyor 51. The rotation cylinder 53 is operated by the rotation operation switch 54a provided on the rear side of the machine body of the rotation conveyor 51.

In addition to this, the auxiliary work step 55, which will be described later, is provided with a rotation operation pedal 54b, which extends the rotation cylinder 53 when the operator on the auxiliary work seat 56 steps on it, and selects crops with both hands. Even if the rotation conveyor 51 is used, the rotation amount of the rotation conveyor 51 can be easily adjusted. The rotation operation pedal 54b may be configured to be operable on the side where the rotation cylinder 53 is contracted.

Then, on the left and right sides of the foliage processing conveyor 48, and on the rear side of the machine body from the sorting conveyor 50, those that are not suitable for harvesting from the carrots being transported by the sorting conveyor 50 (for example, those with scratches). An auxiliary work step 55 and an auxiliary work seat 56 on which an operator who removes the foliage portion that could not be processed by the left and right foliage processing rollers 49 and 49 are boarded while removing the abnormal shape) are provided.

Further, a transfer electric motor 57, which is a drive source of the transfer conveyor 50, is provided at the transfer end portion of the rotary conveyor 51 and on the front side of the machine body. As a result, the sorting and transporting unit F is configured.

As described above, when the rotary conveyor 52 is rotated, the height of the transport end portion is changed. Therefore, the vertical distance between the transport end portion of the rotary conveyor 52 and the carrot collection container 60 is adjusted to increase the yield. It can be easily stretched and work efficiency is improved.

The auxiliary work step 55 and the foliage processing conveyor 48 are spaced apart in the left-right direction so that the soil adhering to the carrot and the foliage portion treated by the left and right foliage processing rollers 49 and 49 can be dropped onto the field. It is configured.

The position where the carrot moves from the foliage processing conveyor 48 to the sorting conveyor 50 is near the front ends of the left and right foliage processing rollers 49 and 49, but moves from the left and right other foliage processing rollers 49 to the sorting conveyor 50. The ginseng may come into contact with the ginseng moved from the foliage processing roller 49 on the left and right sides located on the upper side in the transport direction to the sorting conveyor 50, and may be damaged by the impact of the contact.

In order to solve the above problem, ginseng is sorted on the front side of the foliage processing conveyor 48 and from the transport start end of the foliage processing conveyor 48 to the left and right other ends of the residual leaf processing roller 49 on one left and right side. A guide shooter 58 for guiding the conveyor 50 to the front side of the machine body is provided. The guide shooter 58 is made of a soft material such as rubber, and its end side is positioned above the vicinity of the central portion in the front-rear direction of the sorting conveyor 50.

In addition to this, in order to prevent the carrots moving from the left and right other side foliage processing rollers 49 to the sorting conveyor 50 from jumping out toward the front side of the body of the sorting conveyor 50, the front end of the left and right foliage processing rollers 49. A guide plate 59 is provided from the vicinity of the portion to the vicinity of the front end portion of the foliage processing roller 49 on the left and right sides to regulate the movement of the carrots to the front side of the front-rear center portion of the sorting conveyor 50. The guide plate 59 is provided with a "he" -shaped plate at the front end of the foliage processing roller 49 on one side on the left and right, and the surface of the plate is covered with a soft material such as rubber.

As a result, it is possible to prevent the carrots moving to the sorting conveyor 50 from coming into contact with each other through the left and right foliage treatment rollers 49, 49, so that the carrots are prevented from being damaged by the impact of the contact, and the commercial value of the carrots is maintained. To.

Further, by forming the guide shooter 58 with a soft material and covering the surface of the guide plate 59 with the soft material, it is possible to prevent the carrot from being damaged even if it comes into contact with the carrot, so that the commercial value of the carrot is maintained.

Next, the configuration of the collection unit G will be described.

As shown in FIGS. 1 to 4, front and rear recovery rotation arms 61 and 61 are rotatably provided at the transfer end portion of the rotation conveyor 52, and the front and rear recovery rotation arms 61 and 61 are provided with carrots. Suspended hangers 62 and 62 are provided to suspend and support the collection container 60 in a quadrangular open state in a plan view.

Further, a collection table 63 for supporting the bottom of the collection container 60 is provided on the left and right other sides of the machine frame 1, and the collection table 63 is rotated around a recovery rotation shaft 64 in the left-right direction provided on the rear side of the machine body as a fulcrum. It can be configured freely. A rotation motor 65 for rotating the collection table 63 is provided at the rear portion of the collection table 63.

When the collection container 60 is attached to the front and rear hanging hangers 62, 62, the rotary conveyor 52 is lowered to the minimum, the vertical length of the recovery container 60 is shortened, and the transfer end portion of the rotary conveyor 52 and recovery are performed. The vertical distance from the bottom of the container 60 is reduced. Then, when the amount of carrots collected in the collection container 60 increases, the rotating conveyor 52 is rotated upward to increase the vertical length of the collection container 60. At this time, the collected carrots move to the bottom side of the collection container 60 to increase the capacity of the collection container 60, but since the collected carrots are at the bottom, the vertical distance between the collection container 60 and the rotary conveyor 52 is increased. Is prevented from becoming large. Hereinafter, the rotating conveyor 52 is raised according to the amount of carrots collected in the collection container 60 to increase the capacity of the collection container 60.

As a result, the impact of the fall on the carrot is reduced, so that the carrot is prevented from being damaged and the commercial value is lowered.

After the carrots are collected in the collection container 60, when the collection container 60 is lowered to the field, the rotary conveyor 52 is lowered to ensure that the bottom of the collection container 60 is grounded to the collection table 63. Then, the opening of the collection container 60 is closed, and the collection container 60 is removed from the front and rear hanging hangers 62 and 62. When the rotation motor 65 is operated in this state and the collection table 63 is rotated downward, the collection container 60 moves to the field by its own weight. After that, when the traveling operation lever 13 of the control unit B is operated to the reverse side to move the aircraft backward, the collection table 63 is separated from the collection container 60 and is placed in the field. The control unit B is located on the front side of the collection table 63.

As described above, when the collection table 63 is separated from the collection container 60, the operator can operate the traveling operation lever 13 when standing near the front side of the collection container 60, so that the reverse operation of the machine body can be performed while supporting the collection container 60. It will be possible. As a result, it is not necessary for another worker to support the collection container 60 when moving the machine backward, which saves labor and improves work efficiency.

13 Travel operation lever (travel operation member)
14 Lifting operation lever (interlocking operation member)
18 Lifting cylinder (lifting member)
24L Pull-out transfer device 24R Pull-out transfer device 25 Pull-out drive pulley (drive rotating body)
26 Pull-out driven pulley (driven rotating body)
27 Pull-out belt (pull-out endless belt)
38 Vertical raising device (raising device)
39 Horizontal raising device (raising device)
81L Left side lift switch (individual operation member)
81R Right lift switch (individual operation member)
90 Ginseng detection member (crop detection member)
94 Raising and rotating motor (raising and rotating member)
95 Adjustment dial (adjustment member)
100 control unit

Claims (2)

A pull-out transport device (24L, 24R) for pulling out and transporting the crops to be vegetated in the field is provided to separate the entanglement of the foliage of the crop and the foliage of the crop of the harvest strip is sandwiched by the pull-out transport device (24L, 24R). In a root vegetable harvester equipped with a raising device that guides to the transport working area
The provided withdrawing conveying device (24L, 24R) to the right, caused to be connected the withdrawal conveyor device (24L, 24R) and the left and right lifting members for lifting the (18, 18), the one of left and right sides of the Pick device A pull-up rotation motor (94) that rotates the mounting arm (93), and
Left and right individual operating members (81L, 81R) for operating the left and right lifting members (18, 18) separately and, interlocking operation member for operating the left and right lifting members (18, 18) simultaneously with (14),
The pull-out transport device (24L, 24R) is provided with a plurality of crop detection members (90) for detecting the transport of crops and a control device (100) for receiving the detection results of the plurality of crop detection members (90).
In the control device (100), when the plurality of crop detection members (90) are in a non-detection state for a predetermined number of crops or more, the raising mounting arm (93) rotates downward. The raising and rotating motor (94) is operated to operate.
Soilers (31, 31) that dissolve the soil around the crop are provided on one side of the left and right sides of the left and right pull-out transport devices (24L, 24R) and on the other side of the left and right sides of the left and right pull-out transport devices (24L, 24R). A central soira (36) was set up between the crops to dissolve the soil between the crops.
The central soil (36) is composed of left and right crushed bodies (36b, 36b), and is provided with an adjusting member (37) for adjusting the rotation angle of the left and right crushed bodies (36b, 36b). A root vegetable harvester characterized in that the tip positions of the left and right excavated bodies (36b, 36b) can be changed by changing the rotation angle . A traveling operation member (13) for changing the forward / backward movement of the aircraft and the traveling speed is provided.
The root vegetable harvester according to claim 1, wherein the left and right individual operating members (81L, 81R) are provided on a surface of the grip portion (13a) for gripping the traveling operating member (13) on the front side of the machine body. ..

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