JP7022026B2 - Fertilizer application device - Google Patents

Description

The present invention relates to a fertilizer application device provided in a rice transplanter and supplying a predetermined amount of fertilizer in a hopper to a field.

The following Patent Document 1 discloses a seedling planting machine (rice transplanter) equipped with a fertilizer application device. In the fertilizer application device of Patent Document 1, nine fertilizer tanks for accommodating fertilizer are provided, and the fertilizer tank is composed of five central fertilizer tanks and two left and right fertilizer tanks. In the used state, the left and right fertilizer application tanks are projected in the left and right direction of the machine, but due to restrictions when transporting on the road, in the non-use state, the left and right fertilizer application tanks are rotated to change the position near the driver's seat, and the fertilizer application device. The width of the left and right direction must be reduced. Switching between the used state and the non-used state is a labor of the worker, and it is desired to reduce this labor.

Therefore, it is conceivable to reduce the width of each fertilizer application tank and the width of the fertilizer application device in the left-right direction so that the machine does not protrude in the left-right direction during use. However, in order to reduce the width of the fertilizer application device in the left-right direction, it is necessary to consider a layout that considers the weight balance in the left-right direction including not only the fertilizer application tank but also other components.

Japanese Patent No. 3353373

Therefore, in view of the above problems, it is an object of the present invention to provide a fertilizer application device capable of reducing the width in the left-right direction in a used state while considering the weight balance in the left-right direction.

The fertilizer application device of the present invention is a fertilizer application device provided in a rice transplanter and supplies a predetermined amount of fertilizer in a hopper to a field.
A first fertilizer applicator arranged on one side in the left-right direction of the machine, a second fertilizer applicator arranged on the other side in the left-right direction of the machine, and a fertilizer application drive for transmitting power to the first fertilizer applicator and the second fertilizer applicator. With a department,
The first fertilizer applicator has four hoppers arranged side by side in the left-right direction of the machine, and is located above the fertilizer application drive unit and is upward with respect to a drive posture and a rotation axis on one side in the left-right direction of the machine. It is configured to be able to freely change the posture with a standing posture that rotates to
The second fertilizer applicator has five hoppers arranged side by side in the left-right direction of the machine, and is located above the fertilizer application drive unit and is upward with respect to a drive posture and a rotation axis on the other side in the left-right direction of the machine. It is configured to be able to freely change the posture with a standing posture that rotates to
The fertilizer application drive unit has a drive case for transmitting power from a mission case of the traveling device of the rice transplanter.
The first fertilizer applicator has a seat hopper provided between the hoppers for any two of the four hoppers.
When the first fertilizer applicator is in the drive posture, the spacer hopper is located above the drive case.

In the fertilizer application device of the present invention, the first fertilizer applicator has four hoppers and the second fertilizer applicator has five hoppers. 2 The fertilizer applicator tends to be heavier than the first fertilizer applicator. However, in the present invention, the first fertilizer applicator has a seat hopper, and a drive case, which is a heavy object, is arranged below the seat hopper, so that the weight balance in the left-right direction can be improved. As a result, the fertilizer application device of the present invention can reduce the width of each hopper to reduce the width of the fertilizer application device in the left-right direction while considering the weight balance in the left-right direction.

In the present invention, it is preferable that the interior of the two hoppers provided with the spacer hopper is communicated with each other by the spacer hopper. According to this configuration, fertilizer can be transferred between two adjacent hoppers, which facilitates maintenance work.

It is a left side view which shows the whole structure of the rice transplanter which concerns on this embodiment. It is a front view of the fertilizer application device. It is a rear view of the fertilizer application device. 2 is a sectional view taken along the line AA of the fertilizer application apparatus shown in FIGS. 2 and 3. It is a top sectional view of the fertilizer application device. It is an exploded perspective view of the 1st hopper and the spacer hopper.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a rice transplanter 1 provided with a fertilizer application device 5. First, the schematic structure of the rice transplanter 1 will be described. In the following description, the left side of the traveling device 2 in the forward direction is simply referred to as "left" or "left side", and the right side of the traveling device 2 in the forward direction is simply referred to as "right" or "right side".

The rice transplanter 1 according to the present embodiment includes a traveling device 2, an elevating device 3, and a seedling planting device 4.

The traveling device 2 includes a traveling machine body 2a, a pair of left and right front wheels 2b and 2b supporting the traveling machine body 2a, a pair of left and right rear wheels 2c and 2c, and an engine 2d mounted on the front portion of the traveling machine body 2a. There is. By transmitting the power from the engine 2d to the rear mission case 2e and driving the front wheels 2b and 2b and the rear wheels 2c and 2c, the traveling machine body 2a is configured to travel forward and backward. Further, the traveling device 2 includes a control unit (not shown). The control unit is configured to control each configuration of the rice transplanter 1 based on a signal from a sensor or the like provided in each unit of the rice transplanter 1.

Further, the traveling device 2 includes a work step (vehicle body cover) 2f for boarding an operator, a front bonnet 2g that covers the engine 2d, and a driving operation unit 2h. The work step 2f is provided on the upper surface side of the front portion and the central portion of the traveling machine body 2a. The front bonnet 2g is arranged above the front part of the work step 2f, and the engine 2d is provided inside the front bonnet 2g. The operation operation unit 2h is arranged on the rear upper surface side of the front bonnet 2g, and is an operation (not shown) for operating the steering handle 2i, the traveling main speed change lever for operating the traveling speed, and the seedling planting device 4. Equipped with a lever. The driver's seat 2j is arranged behind the front bonnet 2g on the upper surface of the work step 2f.

The elevating device 3 is arranged behind the traveling device 2, and the seedling planting device 4 is movably connected to the traveling device 2 via the elevating device 3.

The seedling planting device 4 includes a seedling stand 4a on which a seedling mat is placed, and a planting section 4b for scraping and planting one seedling from the seedling mat. The planting portion 4b is arranged below the seedling stand 4a. The planting portion 4b is provided with a rotating planting claw 4c, and the planting claw 4c is revolved to scrape one seedling from the seedling mat located at the lower end of the seedling stand 4a. And plant it in the field.

Next, the fertilizer application device 5 will be described. The fertilizer application device 5 supplies fertilizer to the field at the same time as planting the seedlings by the seedling planting device 4.

The fertilizer application device 5 is arranged behind the control seat 2j and in front of the seedling planting device 4. The fertilizer application device 5 includes a fertilizer application frame 50, a first fertilizer application machine 51, a second fertilizer application machine 52, and a fertilizer application drive unit 53. Further, the fertilizer application device 5 includes a lower fertilizer application machine 54, a first rotation mechanism 55, and a second rotation mechanism 56.

The fertilizer application frame 50 includes a pair of left and right support plates 501, an upper frame 502 that connects the upper parts of the support plates 501 to each other, a pair of front and rear lower frames 503 that connect the lower parts of the support plates 501 to each other, and a lower frame. It includes a connecting frame 504 that connects the 503 to each other. The fertilizer application frame 50 is fixed to the traveling device 2 behind the control seat 2j.

The fertilizer application drive unit 53 transmits the power transmitted from the engine 2d. The fertilizer application drive unit 53 is provided on the front portion of the fertilizer application frame 50. The fertilizer application drive unit 53 includes a first transmission shaft 531, a drive case 532, and a second transmission shaft 533.

One end of the first transmission shaft 531 is connected to the transmission case 2e (not shown in FIG. 2), and the other end is connected to the drive case 532. The first transmission shaft 531 transmits the power transmitted from the mission case 2e to the drive case 532.

The drive case 532 shifts the transmitted power and transmits it to the second transmission shaft 533. The drive case 532 has a built-in gear or the like for shifting the power. The drive case 532 is arranged to the right in the left-right direction. The mission case 2e is also arranged to the right in the left-right direction, and the drive case 532 is arranged above the mission case 2e.

The second transmission shaft 533 transmits the power shifted in the drive case 532. One end of the second transmission shaft 533 is connected to the drive case 532, and the other end is projected toward the rear of the drive case 532.

The first fertilizer application machine 51 and the second fertilizer application machine 52 are arranged side by side in the left-right direction, the first fertilizer application machine 51 is arranged on the right side, and the second fertilizer application machine 52 is arranged on the left side. The first fertilizer application machine 51 and the second fertilizer application machine 52 are arranged above the fertilizer application drive unit 53.

The first fertilizer application machine 51 includes a first hopper 511, a power transmission mechanism 512, a first input shaft 513, a first lid 514, and a first feeding unit 515.

The first fertilizer applicator 51 includes four rows of first hoppers 511 arranged side by side in the left-right direction. Further, the first fertilizer applicator 51 is provided with a seat hopper 516 between the first hoppers 511 for two rows on the left side of the first hopper 511 for four rows.

Fertilizer is stored in the first hopper 511. The upper and lower parts of the first hopper 511 are open. The lower part of the first hopper 511 is formed in a funnel shape. A first notch portion 511a is formed in the upper part of the side surface on the side where the first hopper 511 faces each other, and the internal space is communicated with each other by the first notch portion 511a. Further, a first notch portion 511a is also formed on the upper portion of the side surface of the first hopper 511 facing the spacer hopper 516. Further, on the right side surface of the first hopper 511 located on the far right side, a first communication hole 511b for communicating the internal space and the outside is formed.

The seat hopper 516 and the first hoppers 511 on both sides thereof are connected by bolts and nuts. Further, the adjacent first hoppers 511 are also connected to each other by bolts and nuts. The width of the spacer hopper 516 in the left-right direction is narrower than the width of the first hopper 511 in the left-right direction and wider than the distance between adjacent first hoppers 511.

The upper part of the seat hopper 516 is opened, and the lower part of the seat hopper 516 is closed. The seat hopper 516 has a U-shape when viewed from the side. Further, a third notch portion 516a is formed on each of the left and right side surfaces of the seat hopper 516. The third notch portion 516a is formed at a position corresponding to the first notch portion 511a of the adjacent first hopper 511, and the interior space of the spacer hopper 516 and the first hopper 511 are communicated with each other. That is, the inside of the first hopper 511 for two rows in which the seat hopper 516 is provided is communicated with the inside of the seat hopper 516.

The left and right ends of the inner bottom surface 516b of the seat hopper 516 coincide with the lower ends of the third notch 516a. The left and right central portions of the inner bottom surface 516b project upward from the left and right end portions. Further, the inner bottom surface 516b of the seat hopper 516 is located above the inner bottom surface of the first hopper 511. As a result, the fertilizer in the seat hopper 516 is distributed into the adjacent first hopper 511. In the space below the seat hopper 516, a power transmission mechanism 512 and a drive case 532 of the fertilizer application drive unit 53 are arranged.

The power transmission mechanism 512 transmits the power from the fertilizer application drive unit 53 to the first input shaft 513. The power transmission mechanism 512 is arranged behind the fertilizer application drive unit 53. The second transmission shaft 533 of the fertilizer application drive unit 53 is connected to the power transmission mechanism 512.

The first input shaft 513 is connected to the power transmission mechanism 512 to transmit power. The first input shaft 513 is inserted into the power transmission mechanism 512 and extends to the left and right from the power transmission mechanism 512.

The first lid 514 covers the upper part of the first hopper 511 and the seat hopper 516, and closes the upper part of the opened first hopper 511 and the seat hopper 516.

The first feeding unit 515 is arranged in the lower part of the first hopper 511, and feeds out the fertilizer contained in the first hopper 511 by a predetermined amount. The first feeding portion 515 includes an upper accommodating portion 515a, a feeding mechanism 515b, and a lower accommodating portion 515c.

The upper accommodating portion 515a receives fertilizer that has fallen from the first hopper 511. The upper and lower portions of the upper accommodating portion 515a are open, and the upper portion of the opened upper accommodating portion 515a is connected to the lower portion of the opened first hopper 511.

The feeding mechanism 515b feeds out the fertilizer of the upper accommodating portion 515a by a predetermined amount. The payout mechanism 515b is a power transmitted via a drive bevel gear 515d fixed to the first input shaft 513, a driven bevel gear 515e meshing with the drive bevel gear 515d, and a payout shaft 515f fixed to the driven bevel gear 515e. Driven by.

The lower accommodating portion 515c receives fertilizer supplied via the feeding mechanism 515b. The lower accommodating portion 515c is arranged below the feeding mechanism 515b. The upper part and the lower part of the lower accommodating portion 515c are opened, and the upper portion of the opened lower accommodating portion 515c is connected to the feeding mechanism 515b. The lower accommodating portion 515c is formed in a funnel shape, and the lower portion of the opened lower accommodating portion 515c is connected to a connection pipe 541a described later.

The second fertilizer application machine 52 includes a second hopper 521, a second input shaft 523, a second lid 524, and a second feeding portion 525.

The second fertilizer application machine 52 includes a second hopper 521 for five rows arranged side by side in the left-right direction. The upper part and the lower part of the second hopper 521 are open. The lower part of the second hopper 521 is formed in a funnel shape. A second notch (not shown) is formed on each of the upper portions of the side surfaces of the second hoppers 521 facing each other, and the second notch allows the internal space to communicate with each other. Further, a second communication hole 521b that communicates the internal space and the outside is formed on the left side surface of the second hopper 521 located on the leftmost side. Since the configuration of the second hopper 521 is substantially the same as the configuration of the first hopper 511, other explanations will be omitted.

The second input shaft 523 transmits the power from the power transmission mechanism 512. The second input shaft 523 is arranged on the same axis as the first input shaft 513, and is connected to the first input shaft 513 via the connecting portion 522.

The second lid 524 covers the upper part of the second hopper 521 and closes the upper part of the opened second hopper 521.

The second feeding portion 525 is arranged in the lower part of the second hopper 521, respectively, and feeds out the fertilizer contained in the second hopper 521 by a predetermined amount. The second feeding portion 525 is driven by the power transmitted by the second input shaft 523. Since the configuration of the second feeding unit 525 is substantially the same as the configuration of the first feeding unit 515, the description thereof will be omitted.

The lower fertilizer applicator 54 supplies fertilizer delivered from the first fertilizer applicator 51 and the second fertilizer applicator 52 to the field. The lower fertilizer application machine 54 includes a transport unit 541, a fertilizer application unit 542, and a blower unit 543.

The transport unit 541 transports fertilizer fed from the first feed unit 515 and the second feed unit 525. The transport unit 541 includes a connecting pipe 541a and a transport hose 541b. The connecting pipe 541a is a tubular member extending in the front-rear direction, and the lower ends of the first feeding portion 515 and the second feeding portion 525 are connected to each other. One end of the transport hose 541b is connected to the rear end of the connecting pipe 541a, and the other end extends to the vicinity of the planting portion 4b and is connected to the fertilizer application portion 542.

The fertilizer application section 542 drops fertilizer onto the field. The other end of the transport hose 541b is connected to the fertilizer application portion 542.

The blower unit 543 blows air into the transport unit 541 to assist the transport of fertilizer. The blower unit 543 includes a blower 543a and a blower pipe 543b. The blower 543a blows air into the blower pipe 543b, and is arranged at the left end portion of the fertilizer application frame 50. By arranging the blower 543a on the opposite side of the drive case 532 in the left-right direction in this way, the weight balance in the left-right direction of the fertilizer application device 5 is improved. The blower pipe 543b is a tubular member extending in the left-right direction, and the front end of the connection pipe 541a is connected to the blower pipe 543b. One end of the blower pipe 543b is connected to the blower 543a. On the other hand, the other end of the blower pipe 543b is closed. As a result, the wind supplied from the blower 543a is sent to the connecting pipe 541a.

The first rotation mechanism 55 rotatably supports the first fertilizer application machine 51 with respect to the fertilizer application frame 50 in the vertical direction. The first rotation mechanism 55 includes a first bracket 551 and a first rotation shaft 552.

The first bracket 551 is fixed to the right end portion of the first fertilizer applicator 51. The first bracket 551 is a plate-shaped member extending in the vertical direction, the upper end thereof is fixed to the lower portion of the first hopper 511, and the lower end portion is connected to the fertilizer application frame 50.

The first rotation shaft 552 is supported by the right end portion of the fertilizer application frame 50 with the front-rear direction as the axial direction. The first fertilizer applicator 51 can change its posture between a drive posture located above the fertilizer application drive unit 53 shown in FIG. 2 and an upright posture that rotates upward around the first rotation shaft 552. As described above, the first notch portion 511a and the third notch portion 516a are formed on the side surfaces of the first hopper 511 and the spacer hopper 516 facing each other, respectively, and the internal spaces of the first hopper and the spacer 516 are communicated with each other. When the first fertilizer applicator 51 is changed to the upright posture, the fertilizer in the upper first hopper 511 and the spacer hopper 516 passes through the first notch 511a and the third notch 516a. It is discharged to the outside from the 1 communication hole 511b.

The second rotation mechanism 56 rotatably supports the second fertilizer application machine 52 with respect to the fertilizer application frame 50 in the vertical direction. The second rotation mechanism 56 includes a second bracket 561 and a second rotation shaft 562.

The second bracket 561 is fixed to the left end portion of the second fertilizer applicator 52. The second bracket 561 is a plate-shaped member extending in the vertical direction, the upper end thereof is fixed to the lower portion of the second hopper 521, and the lower end portion is connected to the fertilizer application frame 50.

The second rotation shaft 562 is supported by the left end portion of the fertilizer application frame 50 with the front-rear direction as the axial direction. The second fertilizer application machine 52 can change its posture between a drive posture located above the fertilizer application drive unit 53 shown in FIG. 2 and an upright posture that rotates upward around the second rotation shaft 562. As described above, second notches are formed on the side surfaces of the second hoppers 521 facing each other, and the internal spaces of the second hoppers are communicated with each other, so that the second fertilizer fertilizer 52 changes its posture to an upright posture. If so, the fertilizer in the upper second hopper 521 is discharged to the outside from the second communication hole 521b through the second notch.

[Other embodiments]
In the above-described embodiment, an example in which the spacer hopper 516 is provided between the first hoppers 511 for the left two rows of the first hoppers 511 for the four rows is shown, but the position where the seat hopper 516 is provided between them is shown. Is not limited to this. The seat hopper 516 may be provided between the two first hoppers 511 on the right side of the four first hoppers 511, and the middle two of the four first hoppers 511 may be provided. It may be provided between the first hoppers 511.

In the above-described embodiment, the first fertilizer application machine 51 has four articles of the first hopper 511 and the spacer hopper 516, and the second fertilizer application machine 52 has five articles of the second hopper 521. However, it is not limited to this. For example, the first fertilizer applicator 51 may have a first hopper 511 and a seat hopper 516 for five articles, and the second fertilizer applicator 52 may have a second hopper 521 for six articles. Further, the first fertilizer applicator 51 may have a first hopper 511 and a seat hopper 516 for six articles, and the second fertilizer applicator 52 may have a second hopper 521 for seven articles.

Although the embodiments of the present invention have been described above with reference to the drawings, it should be considered that the specific configuration is not limited to these embodiments. The scope of the present invention is shown not only by the description of the above-described embodiment but also by the scope of claims, and further includes all modifications within the meaning and scope equivalent to the scope of claims.

1 Rice transplanter 2 Traveling machine 2a Traveling machine 2e Mission case 4 Seedling planting device 5 Fertilizer application device 51 1st fertilizer application machine 511 1st hopper 516 Seat hopper 52 2nd fertilizer application machine 521 2nd hopper 53 Fertilization drive unit 532 Drive case 55 1st rotation mechanism 552 1st rotation shaft 56 2nd rotation mechanism 562 2nd rotation shaft

Claims (2)

It is a fertilizer application device installed in a rice transplanter that supplies a predetermined amount of fertilizer in the hopper to the field.
A first fertilizer applicator arranged on one side in the left-right direction of the machine, a second fertilizer applicator arranged on the other side in the left-right direction of the machine, and a fertilizer application drive for transmitting power to the first fertilizer applicator and the second fertilizer applicator. With a department,
The first fertilizer applicator has four hoppers arranged side by side in the left-right direction of the machine, and is located above the fertilizer application drive unit and is upward with respect to a drive posture and a rotation axis on one side in the left-right direction of the machine. It is configured to be able to freely change the posture with a standing posture that rotates to
The second fertilizer applicator has five hoppers arranged side by side in the left-right direction of the machine, and is located above the fertilizer application drive unit and is upward with respect to a drive posture and a rotation axis on the other side in the left-right direction of the machine. It is configured to be able to freely change the posture with a standing posture that rotates to
The fertilizer application drive unit has a drive case for transmitting power from a mission case of the traveling device of the rice transplanter.
The first fertilizer applicator has a seat hopper provided between the hoppers for any two of the four hoppers.
A fertilizer application device in which the spacer hopper is located above the drive case when the first fertilizer applicator is in the drive posture. The fertilizer application device according to claim 1, wherein the two hoppers provided with the interstitial hopper in between are internally communicated with each other by the interstitial hopper.

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