JP6980514B2 - Crop harvester - Google Patents

Description

The present invention relates to a crop harvester that lifts crops such as radish, carrot, cabbage and kabra from a field and harvests them.

An example of the crop harvester as described above is disclosed in Patent Document 1. In Patent Document 1, the right and left belt-shaped carriers are supported in a posture of being inclined diagonally upward from the front part to the rear part of the machine body.
As a result, as the aircraft moves forward, the crops in the field enter between the right and left carriers from the front of the right and left carriers, and the crops are sandwiched by the right and left carriers. , Transported to the rear side diagonally above the aircraft and collected.

In Patent Document 1, a traveling transmission system that transmits power to a traveling device and a transport transmission system that transmits power to a transport body are branched in parallel from the engine, and the traveling transmission system and the transport transmission system are mutually branched. It is an independent relationship.

Japanese Unexamined Patent Publication No. 2016-208872

The crop harvester of Patent Document 1 is configured to hold and lift the crops in the field by the right and left transporters as the machine advances, so that the traveling speed of the machine and the operating speed of the carrier are used. It is preferable to maintain a constant relationship with.

On the other hand, depending on various conditions such as the condition of the field and the growing condition of the crop, the operator may operate the traveling speed of the aircraft to the high speed side or the low speed side. If the traveling speed changes, the relationship between the traveling speed of the aircraft and the operating speed of the carrier may be disrupted, and crops may not be harvested properly.

The present invention ensures that in a crop harvester equipped with right and left carriers, the running speed of the machine and the operating speed of the carrier are maintained in an appropriate relationship even if the running speed of the machine changes. The purpose is to ensure that the crops in the field are pinched and lifted by the right and left carriers.

The crop harvester of the present invention
It is equipped with right and left transporters that are rotationally driven to transport the crops in the field from the right and left sides and lift them from the field, diagonally above and to the rear of the aircraft.
A traveling transmission system that transmits power to the traveling device and a transport transmission system that transmits power to the transport body are provided by branching in parallel from the engine.
Equipped with a running speed sensor that detects the running speed of the aircraft,
By operating the carrier diagonally to the upper rear side while the machine moves forward, the transport synchronized speed at which the carrier lifts the crop directly above the field in the entire range of the traveling speed of the machine. A transport speed change unit for shifting the operating speed of the transport body based on the detection value of the traveling speed sensor is provided so that the transport body operates.
A tuning speed changing unit that can freely change the transport tuning speed to the high speed side and the low speed side is provided .

According to the present invention, the traveling speed of the machine is detected by the traveling speed sensor, and the operating speed of the carrier is automatically maintained at the transport synchronized speed. When the traveling speed of the machine becomes faster, the operating speed of the carrier (Transport tuning speed) also increases, and when the traveling speed of the aircraft slows down, the operating speed of the transport body (transport tuning speed) also slows down.

As a result, in a state where the carrier operates diagonally to the upper rear side with respect to the advance of the machine, even if the running speed of the machine changes, the running speed of the machine and the operating speed of the carrier cancel each other out. It is possible to obtain a state in which the crop can be lifted substantially directly above the field by the carrier, and the crop can be harvested without difficulty.
The above-mentioned state is particularly effective when harvesting by pulling out crops buried in the field, such as radish and carrot.
Further, according to the present invention, by setting the transport synchronization speed to the high speed side with respect to the state where the crop is lifted substantially directly above the field by the transport body, the transport body precedes the advance of the machine. It is possible to obtain a state in which the crop is lifted early, and a state in which the crop is lifted slightly backward with respect to the field can be obtained without difficulty.
By setting the transport synchronization speed to the low speed side for the state where the crop is lifted almost directly above the field by the carrier, it is possible to reasonably delay the lifting of the crop by the carrier with respect to the advance of the aircraft. It is possible to obtain a state in which the front part of the right and left transport portions is pressed against the crops in the field without difficulty.

In the present invention
A transport speed setting unit that artificially sets the operating speed of the transport body and a mode setting unit that is artificially operated are provided.
A first mode in which the transfer transmission is operated based on the detection value of the traveling speed sensor so that the carrier operates at the transfer synchronization speed in the entire range of the traveling speed of the aircraft.
A second mode in which the transfer speed change unit is operated is set so that the transfer body operates at the transfer set speed set by the transfer speed setting unit.
It is preferable that the first mode or the second mode is set by the mode setting unit.

According to the present invention, the operator can select the first mode and the second mode based on various conditions such as the state of the field and the growing state of the crop. When the operator selects the first mode, the operating speed of the carrier is automatically maintained at the transport synchronization speed, as described above.

When the worker selects the second mode, the worker operates the transport speed setting unit to arbitrarily set the operating speed of the transport body based on various conditions such as the state of the field and the growth state of the crop. be able to.

In the second mode, when the operating speed of the carrier is set to the high speed side, it is possible to obtain a state in which the carrier precedes the advance of the aircraft and lifts the crop earlier, and the crop is slightly behind the field. You can get a state of being lifted to the side.
In this state, for example, the distance (pitch) of the crops in the field in the forward direction of the aircraft is small, the crops in the field are suitable for a dense state, and the crops are transferred by the carrier without delaying the advance of the aircraft. Can be lifted from the field.

In the second mode, when the operating speed of the carrier is set to the low speed side, it is possible to obtain a state in which the lifting of the crop by the carrier is delayed with respect to the advance of the aircraft, and the right and left transport sections are used for the crops in the field. It is possible to obtain a state in which the front part is pressed.
This state is suitable for, for example, a state in which the portion of the crop sandwiched by the right and left transport parts is weak, and the front part of the right and left transport parts is pressed against the crop in the field by the forward movement of the aircraft to the right. And the certainty of the crop being pinched by the left carrier can be increased.

In the present invention
A separator driven rotationally by the power of the transport transmission system is provided on the front side of the transport so as to lift the leaves of the crop in the field upward and separate the leaves of the adjacent crop.
Based on the detection value of the traveling speed sensor, a separation speed change unit for shifting the operating speed of the separating body is provided so that the operating speed of the separating body becomes higher as the traveling speed of the machine becomes faster. Is suitable.

A crop harvester that harvests crops with many leaves has a separator in front of the carrier and rotates the separator to lift the leaves of the crop in the field upwards to drive adjacent crops. Some are configured to separate the leaves with a separator.

According to the present invention, when the traveling speed of the machine becomes high, the operating speed of the separated body also automatically becomes high, and the crop is separated from the field by the carrier while the leaves of the crop are separated by the separated body without delay. The crops can be harvested reasonably by being lifted straight up.
The above-mentioned conditions are particularly effective when harvesting crops that have many leaves and are buried in the field, such as radishes and carrots.

In the present invention
A transport speed setting unit that artificially sets the operating speed of the transport body, a separation speed setting unit that artificially sets the operating speed of the separate body, and a mode setting unit that is artificially operated are provided.
The transport transmission is operated based on the detection value of the travel speed sensor so that the transport body operates at the transport synchronization speed in the entire range of the travel speed of the aircraft, and the travel speed of the aircraft is high. Indeed, in the first mode in which the separation transmission unit operates based on the detection value of the traveling speed sensor so that the operation speed of the separation body becomes high.
The transport transmission shift unit operates at the transport set speed set by the transport speed setting unit, and the separate body operates at the separation set speed set by the separation speed setting unit. A second mode in which the separation speed change unit operates is set so as to perform the operation.
It is preferable that the first mode or the second mode is set by the mode setting unit.

According to the present invention, the operator can select the first mode and the second mode based on various conditions such as the state of the field and the growing state of the crop. When the operator selects the first mode, as described above, the operating speed of the carrier is automatically maintained at the transport synchronized speed, and the faster the traveling speed of the aircraft, the faster the operating speed of the separator. become.

When the worker selects the second mode, the worker operates the transport speed setting unit and the separation speed setting unit, so that the operating speed of the transport body is based on various conditions such as the state of the field and the growth state of the crop. And the operating speed of the separated body can be set arbitrarily.

In the second mode, when the operating speed of the carrier is set to the high speed side, it is possible to obtain a state in which the carrier precedes the advance of the aircraft and lifts the crop earlier, and the crop is slightly behind the field. You can get a state of being lifted to the side.
In this state, for example, the distance (pitch) of the crops in the field in the forward direction of the aircraft is small, the crops in the field are suitable for a dense state, and the crops are transferred by the carrier without delaying the advance of the aircraft. Can be lifted from the field.

In the second mode, when the operating speed of the carrier is set to the low speed side, it is possible to obtain a state in which the lifting of the crop by the carrier is delayed with respect to the advance of the aircraft, and the right and left transport sections are used for the crops in the field. It is possible to obtain a state in which the front part is pressed.
This state is suitable for, for example, a state in which the portion of the crop sandwiched by the right and left transport parts is weak, and the front part of the right and left transport parts is pressed against the crop in the field by the forward movement of the aircraft to the right. And the certainty of the crop being pinched by the left carrier can be increased.

For example, in a state where the leaves of a crop are overgrown and the leaves of adjacent crops are intertwined with each other, in the second mode, by setting the operating speed of the separator to the high speed side, the leaves of the crop are not delayed by the separator. Can be separated.

For example, in a state where there are not many leaves of the crop or a state where the leaves of the crop are weak, in the second mode, by setting the operating speed of the separator to the low speed side, the leaves of the crop may be damaged by the separator. It is possible to prevent the state of being torn off.

The crop harvester of the present invention
It is equipped with right and left transporters that are rotationally driven to transport the crops in the field from the right and left sides and lift them from the field, diagonally above and to the rear of the aircraft.
A traveling transmission system that transmits power to the traveling device and a transport transmission system that transmits power to the transport body are provided by branching in parallel from the engine.
Equipped with a running speed sensor that detects the running speed of the aircraft,
By operating the carrier diagonally to the upper rear side while the machine moves forward, the transport synchronized speed at which the carrier lifts the crop directly above the field in the entire range of the traveling speed of the machine. A transport speed change unit for shifting the operating speed of the transport body based on the detection value of the traveling speed sensor is provided so that the transport body operates.
A separator driven rotationally by the power of the transport transmission system is provided on the front side of the transport so as to lift the leaves of the crop in the field upward and separate the leaves of the adjacent crop.
Based on the detection value of the traveling speed sensor, a separation speed change unit for shifting the operating speed of the separating body is provided so that the operating speed of the separating body becomes higher as the traveling speed of the aircraft becomes faster.
A transport speed setting unit that artificially sets the operating speed of the transport body, a separation speed setting unit that artificially sets the operating speed of the separate body, and a mode setting unit that is artificially operated are provided.
The transport transmission is operated based on the detection value of the travel speed sensor so that the transport body operates at the transport synchronization speed in the entire range of the travel speed of the aircraft, and the travel speed of the aircraft is high. Indeed, in the first mode in which the separation transmission unit operates based on the detection value of the traveling speed sensor so that the operation speed of the separation body becomes high.
The transport transmission shift unit operates at the transport set speed set by the transport speed setting unit, and the separate body operates at the separation set speed set by the separation speed setting unit. A second mode in which the separation speed change unit operates is set so as to perform the operation.
The first mode or the second mode is set by the mode setting unit.
In the entire range of the traveling speed of the machine, the transport transmission is operated based on the detection value of the traveling speed sensor so that the transport body operates at the transport tuning speed, and the separation is performed at the separation set speed. The third mode in which the separation speed change unit is operated is set so that the body operates, and the third mode is set.
Wherein the mode setting unit, the first mode, one of the second mode and the third mode Ru is set.

According to the present invention, the operator can select the third mode in addition to the first mode and the second mode based on various conditions such as the state of the field and the growing state of the crop.
When the worker selects the third mode, as described above, the operating speed of the carrier is automatically maintained at the transport synchronization speed, whereas the worker operates the separation speed setting unit to operate the field. The operating speed of the separated body can be arbitrarily set based on various conditions such as the state of the plant and the growing state of the crop.
As a result, it becomes possible to cope with various conditions such as the state of the field and the growing state of the crop, and the workability of the crop harvester can be improved.

The crop harvester of the present invention
It is equipped with right and left transporters that are rotationally driven to transport the crops in the field from the right and left sides and lift them from the field, diagonally above and to the rear of the aircraft.
A traveling transmission system that transmits power to the traveling device and a transport transmission system that transmits power to the transport body are provided by branching in parallel from the engine.
Equipped with a running speed sensor that detects the running speed of the aircraft,
By operating the carrier diagonally to the upper rear side while the machine moves forward, the transport synchronized speed at which the carrier lifts the crop directly above the field in the entire range of the traveling speed of the machine. A transport speed change unit for shifting the operating speed of the transport body based on the detection value of the traveling speed sensor is provided so that the transport body operates.
A separator driven rotationally by the power of the transport transmission system is provided on the front side of the transport so as to lift the leaves of the crop in the field upward and separate the leaves of the adjacent crop.
Based on the detection value of the traveling speed sensor, a separation speed change unit for shifting the operating speed of the separating body is provided so that the operating speed of the separating body becomes higher as the traveling speed of the aircraft becomes faster.
When the aircraft starts to move forward from the stop state, from said operating speed is stopped isolates, as rapidly rises set speed set in advance, the separation shifting portion you operate.

If the operating speed of the separator is also extremely low in the initial state (the traveling speed of the aircraft is extremely low) when the aircraft starts moving forward from the stopped state, the lifting of the leaves of the crop by the separator will be delayed. Too much, the leaves of adjacent crops may not be properly separated.

According to the present invention, when the airframe starts to move forward from a stopped state, the separated body rapidly starts operating and operates at a set speed.
As a result, it is possible to avoid a state in which the leaves of the crop are lifted too slowly by the separator in the initial state (the state in which the traveling speed of the aircraft is extremely low) when the aircraft starts to move forward from the stopped state. It is possible to avoid the situation where the leaves of adjacent crops cannot be separated properly.

In the present invention
It is preferable that the set speed changing unit is provided so that the set speed can be changed to the high speed side and the low speed side.

According to the present invention, for example, it corresponds to various states such as a state where the leaves of a crop are overgrown and the leaves of adjacent crops are intertwined with each other, a state where there are not many leaves of a crop, and a state where the leaves of a crop are weak. And the set speed can be set.

It is a side view of a radish harvester. It is a plan view of a radish harvester. It is sectional drawing which shows the support structure of a transport device. It is a hydraulic circuit diagram which shows the drive system of a hydraulic motor. It is a figure which shows the linkage state of a control device and each part. It is a side view which shows the lift state (pulling state) of a radish from a field by a transport device and a separation device. It is a conceptual diagram which shows the relationship between the operating speed (conveyance tuning speed) of the 1st transport belt, and the traveling speed of a machine body. It is a figure which shows the relationship between the operating speed (conveyance tuning speed) of the 1st transport belt, and the traveling speed of the machine body in 1st mode and 3rd mode. It is a figure which shows the relationship between the operating speed (conveyance set speed) of the 1st transport belt, and the traveling speed of the machine body in the 2nd mode. It is a figure which shows the relationship between the operating speed (separation set speed) of a separation belt, and the traveling speed of an airframe in the 1st mode. It is a figure which shows the relationship between the operating speed (separation set speed) of a separation belt, and the traveling speed of an airframe in a 2nd mode and a 3rd mode. It is a figure which shows the linkage state of a control device and each part in 1st alternative embodiment of the invention. It is a figure which shows the linkage state of the control device and each part in the 2nd alternative embodiment of the invention. It is a figure which shows the relationship between the operating speed (separation set speed) of the separation belt in the 1st mode, and the traveling speed of the airframe in the 1st alternative embodiment of the invention. It is a figure which shows the relationship between the operating speed (separation set speed) of the separation belt in the 1st mode, and the traveling speed of the airframe in the 2nd alternative embodiment of the invention.

1 to 15 show a radish harvester, which is an example of a crop harvester. F indicates "forward direction", B indicates "backward direction", U indicates "upward direction", and D indicates "downward direction". R indicates "to the right" and L indicates "to the left".

(Overall composition of radish harvester)
As shown in FIGS. 1 and 2, the machine body 1 is supported by the right and left crawler type traveling devices 2, and the driving unit 3 is supported by the right front part of the body 1. The transport device 4 is supported along the front-rear direction on the left side of the machine body 1, the separation device 5 is supported on the front part of the transfer device 4, and the auxiliary wheels 6 and the subsoiler 17 are supported on the front part of the machine body 1. ing.

A conveyor 7 is supported along the left-right direction at a position below the rear portion of the transport device 4, and a storage unit 8 is supported at the rear portion of the machine body 1. A work deck 9 for auxiliary workers is provided.
A roof 10 is supported on the upper part of the machine body 1, and the roof 10 extends from the operating unit 3 to the storage unit 8 in the front-rear direction, and extends from the operating unit 3 to the transport device 4 in the left-right direction.

(Structure of transport device)
As shown in FIGS. 1, 2, and 3, the transport device 4 is entirely rear-raised (front) so that the front portion is located at a low position near the field and the rear portion is located at a high position above the transport conveyor 7. It is supported by a hanging shape), and has a right and left support frame 13, a right and left first conveyor belt 11 (corresponding to a conveyor), a right and left second conveyor belt 12 (corresponding to a conveyor), and a cutter. It is equipped with 14 mag.

An arched support frame 16 is connected over the front of the right and left support frames 13. The right and left rotating bodies 15 are supported on the front end and the rear end of the support frame 13, and the first transport belt 11 is attached over the front and rear rotating bodies 15, and the entire first transport belt 11 is attached. Is supported in a backward rising shape (front falling shape).

The second transport belt 12 is supported from the lower side of the intermediate portion in the front-rear direction of the first transport belt 11 along the first transport belt 11 in a backward rising shape (front falling shape). At the rear of the second transfer belt 12, a cutter 14 is supported between the first transfer belt 11 and the second transfer belt 12.

(Configuration of separator)
As shown in FIGS. 1 and 2, the separation device 5 has four sets of separation belts 18, 19 (corresponding to a separation body) integrally formed so that a large number of arm portions 18a, 19a are arranged at intervals. And a support frame 20 arranged in the vertical direction, and the support frame 20 is supported by the front portion of the support frame 13.

Two sets of separation belts 19 are rotatably supported by the support frame 20 at intervals in the left-right direction so that the arm portion 19a of the separation belt 19 faces in the left-right direction. In front of the front portion of 11, the arm portions 19a of the right and left separation belts 19 are in a state of facing each other.

In front of the separation belt 19, the right and left separation belts 18 are rotatably supported by the support frame 20 at intervals in the left-right direction, and the arm portion 18a of the separation belt 18 faces forward.

(Support structure of transport device)
As shown in FIGS. 1, 2, and 3, the upper link 22 and the lower link 23 are swingably supported vertically on the left front portion of the machine body 1, and the vertical link 24 is provided on the front portion of the upper link 22 and the lower link 23. Connected to form a quadruple link.

Auxiliary wheels 6 and a subsoiler 17 are supported on the front portions of the upper link 22 and the lower link 23, and a hydraulic cylinder 25 for raising and lowering the upper link 22 and the lower link 23 is provided.

The support link 26 is swingably supported around the left-right axis P1 in the front part of the lower link 23, and the support link 27 is swingably supported around the left-right axis P2 in the upper part of the support link 26. It is supported. The hydraulic cylinder 28 is connected over the support links 26 and 27, and the upper part of the support link 27 is swingably connected to the upper part of the support frame 16.

A guide frame 29 is vertically connected to the left rear portion of the machine body 1, a support frame 30 is slidably supported in the vertical direction along the guide frame 29, and a hydraulic cylinder 31 that slides and drives the support frame 30 up and down is provided. It is prepared. The rear portion of the support frame 13 is swingably connected to the upper end portion of the support frame 30.

With the above structure, the height of the rear portion of the support frame 13 (second transport belt 12) can be changed by sliding the support frame 30 up and down by the hydraulic cylinder 31. In this case, the displacement in the front-rear direction of the support frame 13 due to the slide in the up-down direction is absorbed by the support links 26 and 27 swinging back and forth around the axis P1.

As described later (flow of harvesting radish by transport device and separation device), in harvesting radish A (corresponding to a crop), for example, when radish A is long, the support frame 13 (second transport belt 12) The height of the rear part should be raised a little. If the radish A is short, the height of the rear portion of the support frame 13 (second transport belt 12) may be slightly lowered. As a result, the vertical distance between the rear end portion of the second transport belt 12 and the transport conveyor 7 can be adjusted to the length of the radish A.

By extending and contracting the hydraulic cylinder 28, bending and stretching the support links 26 and 27, and changing the position of the upper part of the support link 27 up and down, the front part of the first transport belt 11 (support frame 13) The height from the field can be changed.

(Swinging to the upper left of the roof)
As shown in FIGS. 2 and 3, in the roof 10, the left rear portion 10a of the roof 10 located above the rear portion of the transport device 4 is separated from the main body portion of the roof 10.

The left rear portion 10a of the roof 10 is supported so as to swing up and down around the axis P4 in the front-rear direction of the roof 10, and a hydraulic cylinder 74 that swings and drives the left rear portion 10a of the roof 10 up and down is provided. There is.

As described in the above-mentioned (support structure of the transport device), when the rear portion of the support frame 13 (second transport belt 12) is raised and lowered by the hydraulic cylinder 31, the support frame 30 is in the middle and the middle of the vertical slide range. When located below the portion, the left rear portion 10a of the roof 10 is in a posture parallel to the main body portion of the roof 10.

When the support frame 30 moves upward from the middle portion of the vertical slide range, the hydraulic cylinder 74 automatically operates the left rear portion 10a of the roof 10 upward, and the rear portion of the transport device 4 and the left rear portion of the roof 10 are operated. Contact with 10a is avoided.

(Support structure of separator)
As shown in FIGS. 1 and 2, the support link 32 is swingably supported vertically on the front portion of the support frame 13, and the front portion of the support link 32 is swingably swingable on the lower portion of the support frame 20. It is connected to the.

The operation arm 33 is swingably supported up and down around the axis P3 in the left-right direction of the left front part of the machine body 1, and the front part of the operation arm 33 is swingably connected to the upper part of the support frame 20. ing. The hydraulic cylinder 34 is connected to the lower link 23 and the operation arm 33.
With the above structure, the height of the separation device 5 from the field can be changed by swinging the operation arm 33 up and down by the hydraulic cylinder 34.

The support links 26 and 27 and the hydraulic cylinder 34 are supported by the lower link 23. When the upper link 22 and the lower link 23 (auxiliary wheels 6 and the subsoiler 17) are moved up and down by the hydraulic cylinder 25 when the machine body 1 is turning, the front part of the transport device 4 and the separation device 5 move up and down together.

The support frame 13 and the support frame 20 are connected via a support link 32. Even if the height of the front part of the first transport belt 11 (support frame 13) from the field is changed by the hydraulic cylinder 28, this operation is absorbed by the support link 32 and the height of the separating device 5 does not change. ..

Similarly, even if the height of the separating device 5 from the field is changed by the hydraulic cylinder 34, this operation is absorbed by the support link 32 and reaches the height of the front portion of the first transport belt 11 (support frame 13). There is no change.

(Flow of radish harvesting by transport device and separation device)
As shown in FIGS. 1 and 2, as the aircraft 1 moves forward, the radish A in the row to be harvested is inserted between the right and left separation belts 18.

The arm portion 18a facing forward on the right and left separation belts 18 moves upward between the leaf A1 of the radish A in the row to be harvested and the leaf A1 of the radish A in the adjacent row (FIG. 6). (Refer to the direction of the operating speed V2 of the separation belts 18 and 19), the separation belt 18 is rotationally driven, and the adjacent radish A leaves A1 are separated from each other.

Next, the radish A in the row to be harvested enters between the right and left separation belts 19, so that the opposing arm portions 19a on the right and left separation belts 19 move upward (separation in FIG. 6). (Refer to the direction of the operating speed V2 of the belts 18 and 19), the separation belt 19 is rotationally driven, and the leaves A1 of the adjacent radish A are separated from each other in the radish A in the row to be harvested.

The first transport belt 11 is rotationally driven so that the facing portions of the right and left first transport belts 11 move to the rear side (see the direction of the operating speed V1 of the first transport belt 11 in FIG. 6). There is. Similarly, the facing portions of the right and left second transport belts 12 are rotationally driven so as to move to the rear side.

The leaves A1 of the radish A in the row to be harvested enter between the right and left first transport belts 11 from the front of the right and left first transport belts 11 and are sandwiched by the right and left first transport belts 11. While being done, the radish A is lifted (pulled out) from the field and transported to the rear side.
In this case, since the soil in the field is destroyed by the subsoiler 17, the radish A is reasonably lifted (pulled out) from the field.

The radish A is transported to the rear side by the first transport belt 11, and the lower portion of the first transport belt 11 in the leaf A1 of the radish A is sandwiched and transported by the right and left second transport belts 12, and the radish A is transported. The upper portion of the second transport belt 12 in the leaf A1 of A is cut by the cutter 14.

At the rear end of the second transfer belt 12, the radish A falls from the second transfer belt 12 to the transfer conveyor 7, and is conveyed to the right side by the transfer conveyor 7. The worker of the work deck 9 takes out the good radish A from the radish A conveyed by the conveyor 7, and arranges the good radish A in the storage unit 8 in an aligned state, and the defective radish A is conveyed by the conveyor 7. Then, it is discharged from the right end of the conveyor 7 to the field.

In this case, as described in the above-mentioned (support structure of the transport device), the height of the rear portion of the support frame 13 (second transport belt 12) is changed to change the height of the rear end portion of the second transport belt 12 and the transport conveyor. By adjusting the vertical spacing of 7 to the length of the radish A, the radish A falls from the second conveyor belt 12 to the conveyor 7 at the rear end portion of the second conveyor belt 12 without spilling. be able to.

The leaf A1 of the radish A is transported to the rear side by the first transport belt 11, and is discharged from the rear end portion of the first transport belt 11 to the field.
In this case, a guide plate 21 for guiding the leaf A1 of the radish A is provided so that the leaf A1 of the radish A falls substantially directly below the rear end portion of the first transport belt 11.

(Outline of traveling transmission system and transportation transmission system)
As shown in FIG. 4, the power of the engine 35 is transmitted from the output shaft 35a of the engine 35 to the hydrostatic continuously variable transmission 38 via the transmission belt 36 (corresponding to the traveling transmission system).

The power shifted by the hydrostatic continuously variable transmission 38 is transmitted to the traveling device 2, and the machine body 1 moves forward and backward. The hydrostatic continuously variable transmission 38 can be operated to the forward side and the reverse side by the operator artificially operating the speed change lever 78 provided in the driving unit 3.

The power of the engine 35 is transmitted from the output shaft 35a of the engine 35 to the hydraulic pump 39 via the transmission belt 37 (corresponding to the transfer transmission system), and the hydraulic pump 39 is driven.
The transfer device 4 is provided with a hydraulic motor 40 that rotationally drives the first transfer belt 11 and the second transfer belt 12, and the separation device 5 is provided with a hydraulic motor 41 that rotationally drives the separation belts 18 and 19. A hydraulic motor 42 for rotationally driving the conveyor 7 is provided.

The hydraulic oil of the hydraulic pump 39 is supplied to the hydraulic motors 40, 41, 42, and the hydraulic motors 40, 41, 42 cause the first transfer belt 11, the second transfer belt 12, the separation belts 18, 19, and the transfer conveyor 7. It is driven to rotate.

As described above, the traveling transmission system that transmits power to the traveling device 2 and the transport transmission system that transmits power to the transfer device 4, the separation device 5, and the transfer conveyor 7 are branched in parallel from the engine 35. , The traveling transmission system and the transport transmission system are in an independent relationship with each other.

(Hydraulic circuit for driving transfer device, separation device and transfer conveyor)
As shown in FIG. 4, the hydraulic oil of the tank 43 is supplied to the hydraulic pump 39 via the strainer 44, and the hydraulic oil of the hydraulic pump 39 is supplied to the control valve unit 45.

The control valve unit 45 is provided with two control valves 46 and 47, and the hydraulic oil of the hydraulic pump 39 is supplied to the control valve 46 by the oil passage 48 and controlled by the oil passage 49 branched from the oil passage 48. It is supplied to the valve 47. The hydraulic oil returned from the control valves 46 and 47 is supplied from the oil passage 50 to the filter 51, and is returned from the filter 51 to the tank 43. The oil passage 52 is connected over the oil passages 48 and 50, and a relief valve 53 for protecting the control valves 46 and 47 is provided in the oil passage 52.

The control valve 46 has three positions, a neutral position 46N, a forward rotation position 46A, and a reverse rotation position 46B, and is configured in an electromagnetically operated type. The hydraulic motor 40 is free to drive forward and reverse, and a pair of oil passages 54 from the control valve 46 are connected to the hydraulic motor 40. The oil passage 55 from the relief valve 40a built in the hydraulic motor 40 is connected to the filter 51.

The control valve 47 has two positions, a neutral position 47N and a normal rotation position 47A, and is configured in an electromagnetically operated type. The hydraulic motor 41 is only driven in the forward rotation, and the oil passage 56 from the control valve 47 is connected to the hydraulic motor 41. The oil passage 57 from the relief valve 41a built in the hydraulic motor 41 is connected to the oil passage 55.

The oil passage 58 from the hydraulic motor 41 is connected to the hydraulic motor 42, and the hydraulic motor 42 is only driven in the forward direction. The oil passage 59 from the hydraulic motor 42 is connected to the oil cooler 60, and the hydraulic oil is returned from the oil cooler 60 to the tank 43. An oil passage 61 bypassing the hydraulic motor 42 is connected over the oil passages 58 and 59, and a variable throttle portion 62 is provided in the oil passage 61.

(Control system for driving the hydraulic motor of the conveyor, separator, and conveyor)
As shown in FIG. 5, a mode setting unit 63, a tuning speed changing unit 64, a direction setting unit 65, a transport speed setting unit 66, and a separation speed setting unit 67 are provided in the operation unit 3, and the mode setting unit 63 and tuning are provided. The operation signals of the speed changing unit 64, the direction setting unit 65, the transport speed setting unit 66, and the separation speed setting unit 67 are input to the control device 71.

The mode setting unit 63 is artificially operated by an operator, and one of the first mode, the second mode, and the third mode can be set.
The direction setting unit 65 is artificially operated by an operator, and can set the rotation direction of the hydraulic motor 40 (first transfer belt 11 and second transfer belt 12).

A traveling speed sensor 68 for detecting the traveling speed VK of the machine body 1 is provided in the traveling device 2, and the detection value of the traveling speed sensor 68 is input to the control device 71.
An operating speed sensor 69 for detecting the operating speed V1 of the first transport belt 11 is provided in the hydraulic motor 40, and the detection value of the operating speed sensor 69 is input to the control device 71.
The hydraulic motor 41 is provided with an operating speed sensor 70 for detecting the operating speed V2 of the separation belts 18 and 19, and the detection value of the operating speed sensor 70 is input to the control device 71.

The transfer speed change unit 72 is provided in the control device 71 as software. The transfer speed change unit 72 operates the control valve 46 alternately at the neutral position 46N and the normal rotation position 46A to change the duty ratio, which is the ratio between the period and the operation time of the normal rotation position 46A. conduct. As a result, the flow rate of the hydraulic oil supplied to the hydraulic motor 40 is controlled, and the hydraulic motor 40 is driven in the forward rotation.

Similarly, the transfer transmission unit 72 repeatedly operates the control valve 46 alternately at the neutral position 46N and the reverse rotation position 46B to change the duty ratio, which is the ratio between the cycle and the operation time of the reverse rotation position 46B. conduct. As a result, hydraulic oil is supplied to the hydraulic motor 40, and the hydraulic motor 40 is reversely driven.

The separation speed change unit 73 is provided in the control device 71 as software. The separation speed change unit 73 operates the control valve 47 alternately at the neutral position 46N and the normal rotation position 47A to change the duty ratio, which is the ratio between the period and the operation time of the normal rotation position 47A. conduct. As a result, the flow rate of the hydraulic oil supplied to the hydraulic motor 41 is controlled, and the hydraulic motor 41 is driven in the forward rotation.

(Operating state of the first transport belt 11 (second transport belt 12) in the first mode)
The operating state of the first conveyor belt 11 (second conveyor belt 12) in the state where the first mode is set by the mode setting unit 63 will be described.

As shown in FIGS. 5, 6 and 7, when the first mode is set by the mode setting unit 63 and the normal rotation state is set by the direction setting unit 65, the traveling speed of the aircraft 1 detected by the traveling speed sensor 68 Based on the VK, the transfer tuning speed V11 is calculated by the control device 71 based on the following equation 1.

(Equation 1) V11 = VK / COS θ θ: Tilt angle The tilt angle θ is the tilt angle of the transport device 4 with respect to the field in a state where the entire transport device 4 is supported in a backward rising shape (front falling shape).

As described in the above-mentioned (support structure of the transport device), the height of the rear portion of the support frame 13 (second transport belt 12) can be changed according to the length of the radish A, or the first transport belt 11 (first transport belt 11) can be changed. When the height of the front portion of the support frame 13) is changed, the inclination angle θ changes.

In this case, since the transport device 4 is sufficiently long, the height of the rear portion of the support frame 13 (second transport belt 12) is changed, and the height of the front portion of the first transport belt 11 (support frame 13) is changed. On the other hand, since the change range B1 of the inclination angle θ is small, the inclination angle θ in the equation 1 is fixed to the value at the intermediate position of the change range B1.

When the transport tuning speed V11 is calculated, the transport speed change unit 72 sets the operating speed V1 of the first transport belt 11 (second transport belt 12) to the transport tuning speed V11 based on the detection value of the operating speed sensor 69. As described above, the control valve 46 is duty-controlled between the neutral position 46N and the normal rotation position 46A, and the hydraulic motor 40 is driven in the normal rotation.

As shown in FIG. 8, as the traveling speed VK of the machine body 1 increases, the operating speed V1 (conveyance tuning speed V11) of the first transport belt 11 (second transport belt 12) also increases. When the traveling speed VK of the machine body 1 becomes slower, the operating speed V1 (conveyance tuning speed V11) of the first transport belt 11 (second transport belt 12) also slows down (see the relation line L11).

As a result, even if the traveling speed VK of the machine body 1 changes in a state where the first transport belt 11 (second transport belt 12) operates diagonally to the upper rear side with respect to the advance of the machine body 1, FIGS. 6 and 6 and FIGS. As shown in 7, it is possible to obtain a state in which the traveling speed VK of the machine body 1 and the operating speed V1 of the first transport belt 11 (second transport belt 12) cancel each other out, and the first transport belt 11 (second transport belt 12) can be obtained. The transport belt 12) allows the radish A to be lifted (pulled out) substantially directly above the field without difficulty.

As shown in FIG. 5, the tuning speed changing unit 64 is a dial operation type artificially operated by an operator, and the transport tuning speed V11 in the first mode can be changed to the high speed side and the low speed side. ..
As shown in FIG. 8, by operating the tuning speed changing unit 64, the relational line L11 based on the equation 1 can be changed to a slightly higher speed side (see the relational line L12), or the relational line L11 based on the equation 1 can be changed to a slightly lower speed. It can be changed to the side (see relation line L13).

(Operating state of separation belts 18 and 19 in the first mode)
The operating state of the separation belts 18 and 19 in the state where the first mode is set by the mode setting unit 63 will be described.

As shown in FIG. 5, the separation speed setting unit 67 is a dial operation type that is artificially operated by an operator, and the separation setting speed V21 can be set based on the artificial operation.
Apart from the separation speed setting unit 67, the separation speed setting unit 77 as software is provided in the control device 71. The separation speed setting unit 77 sets the separation set speed V21 based on the detection value of the traveling speed sensor 68.

As shown in FIGS. 5 and 10, when the first mode is set by the mode setting unit 63 and the normal rotation state is set by the direction setting unit 65, the separation speed setting unit 67 is stopped and the separation speed setting unit 77 is set. Is activated (a state in which the separation set speed V21 is set based on the detection value of the traveling speed sensor 68).

As a result, the separation speed setting unit 77 sets the separation set speed V21 like the relation line L21 based on the traveling speed VK of the machine body 1.
The control valve 47 is set by the separation speed change unit 73 so that the operation speed V2 of the separation belts 18 and 19 becomes the separation set speed V21 as described below based on the detection values of the relation line L21 and the operation speed sensor 70. Is duty controlled, and the hydraulic motor 41 is driven in the forward rotation.

When the aircraft 1 starts moving forward from the stopped state, the separation set speed V21 is set to the set speed V22. As a result, the separation belts 18 and 19 rapidly start operating from the stopped state, and the operating speed V2 of the separation belts 18 and 19 rapidly becomes the set speed V22 (separation set speed V21).

In this case, the set speed V22 becomes the lower limit of the separation set speed V21, and the separation set speed V21 is maintained at the set speed V22 until the travel speed VK of the aircraft 1 reaches the set travel speed VK1 (separation belt 18). , 19 operating speed V2 is maintained at the set speed V22 (separation set speed V21).

When the traveling speed VK of the aircraft 1 exceeds the set traveling speed VK1 and becomes high speed, the separation set speed V21 is changed to the high speed side as the traveling speed VK of the aircraft 1 becomes faster based on the detection value of the traveling speed sensor 68. To. As a result, the higher the traveling speed VK of the machine body 1, the higher the operating speed V2 (separation set speed V21) of the separation belts 18 and 19.

When the traveling speed VK of the aircraft 1 is on the higher speed side than the set traveling speed VK1, the separation set speed V21 is changed to the lower speed side as the traveling speed VK of the aircraft 1 becomes slower based on the detection value of the traveling speed sensor 68. Will be done. As a result, the lower the traveling speed VK of the machine body 1, the lower the operating speed V2 (separation set speed V21) of the separation belts 18 and 19.

Even if the traveling speed VK of the aircraft 1 reaches the set traveling speed VK1 and becomes even lower, the separation set speed V21 is maintained at the set speed V22 (the operating speed V2 of the separation belts 18 and 19 is the set speed V22 (separation setting). The speed is maintained at V21)).

(Operating state of the first transport belt 11 (second transport belt 12) in the second mode)
The operating state of the first conveyor belt 11 (second conveyor belt 12) in the state where the second mode is set by the mode setting unit 63 will be described.

As shown in FIGS. 5 and 9, when the second mode is set by the mode setting unit 63 and the normal rotation state is set by the direction setting unit 65, the transfer speed change unit 72 sets the detection value of the operating speed sensor 69. Based on this, the control valve 46 is in the neutral position 46N and the normal rotation position so that the operating speed V1 of the first transport belt 11 (second transport belt 12) becomes the transport set speed V12 regardless of the traveling speed VK of the machine body 1. The hydraulic motor 40 is driven in the forward direction under duty control with the 46A.

The transport speed setting unit 66 is a dial operation type that is artificially operated by an operator, and can set the transport set speed V12 in the second mode (see the relation line L31). In this case, by operating the transport speed setting unit 66, the relation line L31 can be changed to the slightly higher speed side (see the relation line L32), or the relation line L21 can be changed to the slightly lower speed side (relation line). See L33).

(Operating state of separation belts 18 and 19 in the second mode)
The operating state of the separation belts 18 and 19 in the state where the second mode is set by the mode setting unit 63 will be described.

As shown in FIGS. 5 and 11, when the second mode is set by the mode setting unit 63 and the normal rotation state is set by the direction setting unit 65, the separation speed setting unit 77 is stopped and the separation speed setting unit 67 is set. Is activated (a state in which the separation set speed V21 is set based on an artificial operation).

As a result, the separation setting speed V21 is set like the relation line L41 based on the artificial operation of the separation speed setting unit 67.
Based on the artificial operation of the separation speed setting unit 67, the separation setting speed V21 can be changed to the high speed side and the low speed side like the relation lines L42 and L43. In this case, the set speed V22 is the lower limit value, and the separation set speed V21 (relationship lines L41, L42, L43) cannot be set to a speed lower than the set speed V22.

As described above, the separation speed change unit 73 causes the operation speed V2 of the separation belts 18 and 19 to be the separation set speed V21 regardless of the traveling speed VK of the machine body 1 based on the detection value of the operation speed sensor 70. The control valve 47 is duty-controlled, and the hydraulic motor 41 is driven in the forward rotation.

(Operating state of the first conveyor belt 11 (second conveyor belt 12) and the separation belts 18 and 19 in the third mode)
As shown in FIGS. 5 and 8, when the third mode is set by the mode setting unit 63 and the normal rotation state is set by the direction setting unit 65, the transfer speed change unit 72 similarly to the first mode described above. Based on the detection value of the operating speed sensor 69, the control valve 46 has the neutral position 46N and the normal rotation position 46A so that the operating speed V1 of the first transfer belt 11 (second transfer belt 12) becomes the transfer synchronization speed V11. The hydraulic motor 40 is driven in the forward direction by controlling the duty between the two and the hydraulic motor 40.

As shown in FIGS. 5 and 11, when the third mode is set by the mode setting unit 63 and the normal rotation state is set by the direction setting unit 65, the separation speed change unit 73 similarly to the above-mentioned second mode. Based on the detection value of the operating speed sensor 70, the operating speed V2 of the separation belts 18 and 19 is set based on the artificial operation of the separation speed setting unit 67 regardless of the traveling speed VK of the machine body 1. The control valve 47 is duty-controlled so that the set speed is V21, and the hydraulic motor 41 is driven in the forward rotation.

(Operating state of conveyor)
As shown in FIG. 4, the hydraulic motor 42 that rotationally drives the conveyor 7 is located on the lower side of the hydraulic motor 41 that rotationally drives the separation belts 18 and 19.

As a result, the flow rate of the hydraulic oil supplied to the hydraulic motor 41 becomes the maximum flow rate of the hydraulic oil supplied to the hydraulic motor 42, and as described above, the operating speeds V2 of the separation belts 18 and 19 are changed. Then, the operating speed of the conveyor 7 is also changed accordingly.

In this case, when the variable throttle portion 62 is fully closed, the hydraulic oil of the flow rate supplied to the hydraulic motor 41 is supplied to the hydraulic motor 42 as it is. By operating the variable throttle portion 62 slightly to the open side to reduce the flow rate of the hydraulic oil supplied to the hydraulic motor 42, the operating speed of the conveyor 7 can be set to the low speed side.

(Stopped state and reverse state of the direction setting unit)
As shown in FIGS. 4 and 5, when the stop state is set by the direction setting unit 65 in the above-mentioned first mode, second mode, and third mode, the first transfer belt 11 (second transfer belt 12). , And the separation belts 18 and 19 stop.

When the operation button in the reverse direction of the direction setting unit 65 is pressed, the transfer speed change unit 72 controls the duty of the control valve 46 between the neutral position 46N and the reverse position 46B, and the hydraulic motor 40 reverses at a low speed. Driven.

In this case, the hydraulic motor 40 is reverse-driven at a low speed only while the operation button in the reverse-reversing state of the direction setting unit 65 is being pressed, and the first conveyor belt 11 (second conveyor belt 12) is reversed. When the pressing operation of the operation button in the reverse state of the direction setting unit 65 is stopped, the hydraulic motor 40 is stopped.
When radish A or soil is clogged in the first transport belt 11 (second transport belt 12), the hydraulic motor 40 is reversely driven in order to clear the clogging.

(First Different Form of Implementation of the Invention)
As shown in FIGS. 12 and 14, the set speed changing unit 75 may be provided. The set speed changing unit 75 is a dial operation type artificially operated by an operator, and the set speed V22 can be changed to the high speed side and the low speed side.

When the set speed V22 is changed to the high speed side by the set speed changing unit 75 in the state where the first mode is set, the relation line L21 is changed to translate to the high speed side (see the relation line L22). When the set speed V22 is changed to the low speed side by the set speed changing unit 75, the relation line L21 is changed to translate to the low speed side (see the relation line L23).

In the state where the first mode is set, the set traveling speed VK1 may be configured to be able to be changed to the high speed side and the low speed side. When the set traveling speed VK1 is changed to the high speed side and the low speed side, the related lines L21, L22, and L23 are moved to the high speed side and the low speed side along the X axis (traveling speed VK of the aircraft 1) in FIG. It is changed to move in parallel.

As shown in FIG. 11, when the set speed V22 is changed to the high speed side by the set speed change unit 75 in the state where the second mode and the third mode are set, the separation set speed V21 (relationship lines L41, L42, L43). The set speed V22 as the lower limit value of is changed to the high speed side and the low speed side.

(Second alternative form of carrying out the invention)
As shown in FIGS. 13 and 15, the rate of change changing unit 76 may be provided. The change rate changing unit 76 is a dial operation type that is artificially operated by an operator, and can change the change rate of the separation set speed V21 to the large side or the small side in a state where the first mode is set. can.

When the rate of change is changed to the large side by the rate of change changing unit 76, the part on the higher speed side than the set traveling speed VK1 on the relational line L21 is changed to a state where the slope is steep (a state where the constant of the linear function becomes large). (See relation line L24).

When the rate of change is changed to the small side by the rate of change change unit 76, the part on the higher speed side than the set traveling speed VK1 on the relational line L21 is changed to a state in which the inclination is gentle (a state in which the constant of the linear function becomes smaller). (See relation line L25).

In this case, the set speed V22 can be changed to the high-speed side and the low-speed side by providing the set speed changing unit 75 described in the above-mentioned (first alternative embodiment of the invention) in addition to the change rate changing unit 76. It may be configured in.
As described above (the first alternative embodiment of the invention), the set traveling speed VK1 may also be configured to be changeable between the high speed side and the low speed side.

(Third alternative form of carrying out the invention)
The relation lines L21 to L25 in the state where the first mode is set may be set to a curve such as a quadratic function (quadratic curve) instead of a straight line such as a linear function.

In this case, when the rate of change is changed to the large side by the rate of change changing unit 76 described in the above-mentioned (second alternative embodiment of the invention), the curvature of the relational line L21 becomes large and the rate of change becomes small. When changed to, the curvature of the relational line L21 becomes smaller.

In this case, as described in the above-mentioned (first alternative mode of carrying out the invention), the set speed changing unit 75 may be provided, and the set traveling speed VK1 may be changed to the high speed side and the low speed side. You may.

(Fourth Different Embodiment of the Invention)
Depending on the length of the radish A, the height of the rear part of the support frame 13 (second transfer belt 12) may be changed, or the height of the front part of the first transfer belt 11 (support frame 13) may be changed. Therefore, when the tilt angle θ changes, the transport tuning speed V11 may be calculated based on the equation 1 based on the changing tilt angle θ and the traveling speed VK of the machine body 1.

(Fifth alternative form of carrying out the invention)
The hydraulic cylinder 74 is operated according to the vertical slide of the support frame 30, and the left rear portion 10a of the roof 10 is not automatically operated upward, but the hydraulic cylinder 74 is operated by the manual operation of the operator. The left rear portion 10a of the roof 10 may be configured to be arbitrarily operated upward.

(Sixth Different Embodiment of the Invention)
The traveling speed sensor 68 may be provided not on the traveling device 2 but on the shifting lever 78, and may be configured to detect the traveling speed VK of the machine body 1 by detecting the operating position of the shifting lever 78.

In this case, the traveling speed sensor 68 is provided in both the traveling device 2 and the speed change lever 78, and the traveling speed VK of the aircraft 1 is detected by the traveling speed sensor 68 of the speed change lever 78 in the range of the stopped state and the extremely low speed of the machine body 1. However, on the above-mentioned extremely low speed to high speed side, the traveling speed sensor 68 of the traveling device 2 may be configured to detect the traveling speed VK of the machine body 1.

The present invention can be applied not only to radish harvesters but also to crop harvesters such as carrot harvesters and onion harvesters.

1 Aircraft 2 Traveling device 11 1st transport belt (conveyor)
12 Second transport belt (conveyor body)
18 Separation belt (separator)
19 Separation belt (separator)
35 Engine 36 Transmission belt (running transmission system)
37 Transmission belt (transport transmission system)
63 Mode setting unit 64 Tuning speed change unit 66 Transfer speed setting unit 67 Separation speed setting unit 68 Travel speed sensor 72 Transfer speed change unit 73 Separation speed change unit 75 Set speed change unit A Crop A1 Crop leaf V1 Transporter operating speed V2 Separation Body operating speed V11 Transport tuning speed V12 Transport set speed V21 Separation set speed V22 Set speed VK Travel speed

Claims (7)

It is equipped with right and left transporters that are rotationally driven to transport the crops in the field from the right and left sides and lift them from the field, diagonally above and to the rear of the aircraft.
A traveling transmission system that transmits power to the traveling device and a transport transmission system that transmits power to the transport body are provided by branching in parallel from the engine.
Equipped with a running speed sensor that detects the running speed of the aircraft,
By operating the carrier diagonally to the upper rear side while the machine moves forward, the transport synchronized speed at which the carrier lifts the crop directly above the field in the entire range of the traveling speed of the machine. A transport speed change unit for shifting the operating speed of the transport body based on the detection value of the traveling speed sensor is provided so that the transport body operates.
A crop harvester provided with a tuning speed changing unit capable of changing the transport tuning speed to a high speed side and a low speed side. A transport speed setting unit that artificially sets the operating speed of the transport body and a mode setting unit that is artificially operated are provided.
A first mode in which the transfer transmission is operated based on the detection value of the traveling speed sensor so that the carrier operates at the transfer synchronization speed in the entire range of the traveling speed of the aircraft.
A second mode in which the transfer speed change unit is operated is set so that the transfer body operates at the transfer set speed set by the transfer speed setting unit.
The crop harvester according to claim 1, wherein the first mode or the second mode is set by the mode setting unit. A separator driven rotationally by the power of the transport transmission system is provided on the front side of the transport so as to lift the leaves of the crop in the field upward and separate the leaves of the adjacent crop.
Based on the detection value of the traveling speed sensor, a separation speed change unit for shifting the operating speed of the separating body is provided so that the operating speed of the separating body becomes higher as the traveling speed of the machine becomes faster. The crop harvester according to claim 1 or 2. A transport speed setting unit that artificially sets the operating speed of the transport body, a separation speed setting unit that artificially sets the operating speed of the separate body, and a mode setting unit that is artificially operated are provided.
The transport transmission is operated based on the detection value of the travel speed sensor so that the transport body operates at the transport synchronization speed in the entire range of the travel speed of the aircraft, and the travel speed of the aircraft is high. Indeed, in the first mode in which the separation transmission unit operates based on the detection value of the traveling speed sensor so that the operation speed of the separation body becomes high.
The transport transmission shift unit operates at the transport set speed set by the transport speed setting unit, and the separate body operates at the separation set speed set by the separation speed setting unit. A second mode in which the separation speed change unit operates is set so as to perform the operation.
The crop harvester according to claim 3 , wherein the first mode or the second mode is set by the mode setting unit. It is equipped with right and left transporters that are rotationally driven to transport the crops in the field from the right and left sides and lift them from the field, diagonally above and to the rear of the aircraft.
A traveling transmission system that transmits power to the traveling device and a transport transmission system that transmits power to the transport body are provided by branching in parallel from the engine.
Equipped with a running speed sensor that detects the running speed of the aircraft,
By operating the carrier diagonally to the upper rear side while the machine moves forward, the transport synchronized speed at which the carrier lifts the crop directly above the field in the entire range of the traveling speed of the machine. A transport speed change unit for shifting the operating speed of the transport body based on the detection value of the traveling speed sensor is provided so that the transport body operates.
A separator driven rotationally by the power of the transport transmission system is provided on the front side of the transport so as to lift the leaves of the crop in the field upward and separate the leaves of the adjacent crop.
Based on the detection value of the traveling speed sensor, a separation speed change unit for shifting the operating speed of the separating body is provided so that the operating speed of the separating body becomes higher as the traveling speed of the aircraft becomes faster.
A transport speed setting unit that artificially sets the operating speed of the transport body, a separation speed setting unit that artificially sets the operating speed of the separate body, and a mode setting unit that is artificially operated are provided.
The transport transmission is operated based on the detection value of the travel speed sensor so that the transport body operates at the transport synchronization speed in the entire range of the travel speed of the aircraft, and the travel speed of the aircraft is high. Indeed, in the first mode in which the separation transmission unit operates based on the detection value of the traveling speed sensor so that the operation speed of the separation body becomes high.
The transport transmission shift unit operates at the transport set speed set by the transport speed setting unit, and the separate body operates at the separation set speed set by the separation speed setting unit. A second mode in which the separation speed change unit operates is set so as to perform the operation.
The first mode or the second mode is set by the mode setting unit.
In the entire range of the traveling speed of the machine, the transport transmission is operated based on the detection value of the traveling speed sensor so that the transport body operates at the transport tuning speed, and the separation is performed at the separation set speed. The third mode in which the separation speed change unit is operated is set so that the body operates, and the third mode is set.
By the mode setting unit, the first mode, crop harvester in which one is Ru is set among the second mode and the third mode. It is equipped with right and left transporters that are rotationally driven to transport the crops in the field from the right and left sides and lift them from the field, diagonally above and to the rear of the aircraft.
A traveling transmission system that transmits power to the traveling device and a transport transmission system that transmits power to the transport body are provided by branching in parallel from the engine.
Equipped with a running speed sensor that detects the running speed of the aircraft,
By operating the carrier diagonally to the upper rear side while the machine moves forward, the transport synchronized speed at which the carrier lifts the crop directly above the field in the entire range of the traveling speed of the machine. A transport speed change unit for shifting the operating speed of the transport body based on the detection value of the traveling speed sensor is provided so that the transport body operates.
A separator driven rotationally by the power of the transport transmission system is provided on the front side of the transport so as to lift the leaves of the crop in the field upward and separate the leaves of the adjacent crop.
Based on the detection value of the traveling speed sensor, a separation speed change unit for shifting the operating speed of the separating body is provided so that the operating speed of the separating body becomes higher as the traveling speed of the aircraft becomes faster.
When the aircraft starts to move forward from the stop state, from said operating speed is stopped isolates, as rapidly rises set speed set in advance, crop harvesters the separation shifting portion you operate. The crop harvester according to claim 6 , further comprising a set speed changing unit capable of changing the set speed to the high speed side and the low speed side.

Images