CN112469265A

CN112469265A - Fertilizer application device

Info

Publication number: CN112469265A
Application number: CN201980049022.8A
Authority: CN
Inventors: 大前健介
Original assignee: Yanmar Power Technology Co Ltd
Current assignee: Yanmar Power Technology Co Ltd
Priority date: 2018-07-27
Filing date: 2019-06-19
Publication date: 2021-03-09
Also published as: JP2020014429A; JP7022026B2; WO2020021917A1

Abstract

A fertilizer application device (5) provided in a rice transplanter (1) and including a first fertilizer applicator (51), a second fertilizer applicator (52), and a fertilizer application driving unit (53) that transmits power to the first fertilizer applicator (51) and the second fertilizer applicator (52), wherein the first fertilizer applicator (51) has first hoppers (511) corresponding to 4 ridges, and is configured such that: the posture of the first fertilizer applicator (51) can be freely changed into a driving posture positioned above the fertilizer application driving part (53) and a rising posture rotating upwards around a first rotating shaft (552), the second fertilizer applicator (52) is provided with a hopper corresponding to 5 ridges, the fertilizer application driving part (53) is provided with a driving box (532) for transmitting power from a gearbox (2e) of the traveling device (2), and the first fertilizer applicator (51) is provided with: and a spacing hopper (516) arranged between any first hoppers (511) corresponding to 2 ridges among the first hoppers (511) corresponding to 4 ridges, wherein when the first fertilizer applicator (51) is in the driving posture, the spacing hopper (516) is positioned above the driving box (532).

Description

Fertilizer application device

Technical Field

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

Background

Patent document 1 discloses a seedling planting machine (rice transplanter) with a fertilizer application device. In the fertilizer application device of patent document 1, fertilizer application tanks for accommodating fertilizers corresponding to 9 ridges are provided, and each fertilizer application tank is composed of a central fertilizer application tank corresponding to 5 ridges and right and left fertilizer application tanks corresponding to 2 ridges. The left and right fertilizer pots protrude in the left-right direction of the body in the use state, but due to restrictions during transportation on the road, the left and right fertilizer pots must be rotated to change positions near the driver's seat in the non-use state, so that the width of the fertilizer apparatus in the left-right direction is reduced. Switching between the use state and the non-use state requires a labor for the operator, and therefore, it is desirable to reduce the labor.

Therefore, it is conceivable to reduce the width of each fertilizer application tank to reduce the width of the fertilizer application device in the left-right direction so that the fertilizer application tanks do not protrude in the left-right direction of the machine body in the use state. However, this requires the following layout: in addition to reducing the width of the fertilizer application device in the left-right direction, the weight balance in the left-right direction including the fertilizer application tank and other components is considered.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 3353373

Disclosure of Invention

In view of the above problem, it is an object of the present invention to provide a fertilizer applicator that reduces the width in the lateral direction in the use state while taking the weight balance in the lateral direction into consideration.

The fertilizer application device of the present invention is provided with a rice transplanter for supplying a fertilizer in a hopper to a field in units of a predetermined amount, and comprises: a first fertilizer applicator disposed on one side of the body in the left-right direction; a second fertilizer applicator disposed on the other side of the body in the left-right direction; and fertilization drive division, it to first fertilizer distributor and second fertilizer distributor transmission power, first fertilizer distributor has the hopper corresponding with 4 ridges that set up side by side in the organism left and right direction to constitute: the posture of the first fertilizer applicator can be freely changed into a driving posture positioned above the fertilizer application driving part and a standing posture rotating upwards around a rotating shaft on one side of the left and right directions of the machine body, the second fertilizer applicator is provided with hoppers corresponding to 5 ridges which are arranged side by side in the left and right directions of the machine body, and the second fertilizer applicator is composed of: the posture of the second fertilizer applicator can be freely changed into a driving posture positioned above the fertilizer application driving part and a standing posture rotating upwards by taking a rotating shaft at the other side of the left and right directions of the machine body as a center, the fertilizer application driving part is provided with a driving box for transmitting power from a gearbox of a traveling device of the rice transplanter, the first fertilizer applicator is provided with a spacing hopper, the spacing hopper is arranged between any hopper corresponding to 2 ridges in the hoppers corresponding to 4 ridges, and when the first fertilizer applicator is in the driving posture, the spacing hopper is positioned above the driving box.

In the fertilizer spreading device of the present invention, since the first fertilizer applicator has the hopper corresponding to 4 ridges and the second fertilizer applicator has the hopper corresponding to 5 ridges, the second fertilizer applicator tends to be heavier than the first fertilizer applicator in a use state in which fertilizer is contained in the hopper. However, in the present invention, since the first fertilizer applicator includes the partition hopper and the drive box as the weight is disposed below the partition hopper, the weight balance in the left-right direction can be improved. As a result, the fertilizer applicator of the present invention can reduce the width of each hopper and the width of the fertilizer applicator in the lateral direction in the use state while taking into consideration the weight balance in the lateral direction.

In the present invention, it is preferable that the insides of the hoppers corresponding to the 2 ridges provided with the partition hoppers interposed therebetween communicate with each other through the partition hoppers. According to this structure, fertilizer can make a round trip between adjacent and the corresponding hopper in 2 ridges, realizes the maintenance operation easily.

Drawings

Fig. 1 is a left side view showing the overall configuration of the rice transplanter according to the present embodiment.

Fig. 2 is a front view of the fertilizing apparatus.

Fig. 3 is a rear view of the fertilizing apparatus.

Fig. 4 is a sectional view a-a of the fertilizing apparatus shown in fig. 2 and 3.

Fig. 5 is a top sectional view of the fertilizing apparatus.

Fig. 6 is an exploded perspective view of the first hopper and the spacer hopper.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings.

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

The rice transplanter 1 according to the present embodiment includes a travel device 2, a lifting device 3, and a rice transplanting device 4.

The traveling device 2 includes: a traveling machine body 2 a; a pair of left and right

front wheels

2b, 2b and a pair of left and right

rear wheels

2c, 2c for supporting the traveling machine body 2 a; and an engine 2d mounted on a front portion of the traveling machine body 2 a. Is constituted such that: the power from the engine 2d is transmitted to the rear transmission 2e, and the front wheels 2b and the

rear wheels

2c and 2c are driven, whereby the traveling machine body 2a travels forward and backward. The running device 2 includes a control unit, not shown. The control unit is configured to: the respective components of the rice transplanter 1 are controlled based on signals from sensors and the like provided in the respective parts of the rice transplanter 1.

The travel device 2 includes a work step (vehicle body cover) 2f on which an operator rides, a front engine cover 2g covering the engine 2d, and a driving operation portion 2 h. The working pedal 2f is provided on the front portion and the upper surface side of the center portion of the traveling machine body 2 a. The front engine cover 2g is disposed above the front portion of the working pedal 2f, and is provided with an engine 2d inside thereof. The driving operation unit 2h is disposed on the rear upper surface side of the front engine cover 2g, and includes a steering wheel 2i, a main travel gear lever for operating a travel speed, and an unillustrated operation lever for operating the rice transplanting device 4. A manipulation seat 2j is disposed behind the front engine cover 2g on the upper surface of the working pedal 2 f.

The lifting device 3 is disposed behind the traveling device 2, and the rice transplanting device 4 is connected to the traveling device 2 so as to be able to be lifted and lowered by the lifting device 3.

The rice transplanting device 4 includes: a seedling carrying table 4a for carrying the seedling raising mat; and a planting part 4b for raking a seedling from the seedling raising mat and planting the seedling. The planting unit 4b is disposed below the seedling stage 4 a. The planting unit 4b includes a rotating planting claw 4c, and the planting claw 4c performs revolution to rake a seedling from a seedling mat positioned at the lower end of the seedling table 4a and plant the seedling on a field.

Next, the fertilizer application device 5 will be explained. The fertilizer application device 5 supplies fertilizer to the field while planting seedlings by the seedling planting device 4.

The fertilizer application device 5 is disposed behind the operating 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 applicator 51, a second fertilizer applicator 52, and a fertilizer application driving unit 53. The fertilizer applicator 5 includes a lower fertilizer applicator 54, a first rotating mechanism 55, and a second rotating mechanism 56.

The fertilization frame 50 includes: a pair of left and right support plates 501, an upper frame 502 that couples upper portions of the support plates 501 to each other, a pair of front and rear lower frames 503 that couple lower portions of the support plates 501 to each other, and a coupling frame 504 that couples the lower frames 503 to each other are erected. The fertilization frame 50 is fixed to the travel device 2 behind the manipulation seat 2 j.

The fertilization drive unit 53 transmits the power transmitted from the engine 2 d. The fertilizing drive section 53 is provided at the front of the fertilizing frame 50. The fertilizer application driving unit 53 includes a first transmission shaft 531, a driving box 532, and a second transmission shaft 533.

The first transmission shaft 531 has one end coupled to a transmission case 2e (not shown in fig. 2), and the other end coupled to a drive case 532. The first transmission shaft 531 transmits the power transmitted from the transmission case 2e to the drive case 532.

The driving box 532 changes the speed of the transmitted power and transmits the power to the second transmission shaft 533. The drive case 532 incorporates a gear or the like for changing the speed of power. The drive case 532 is disposed near the right side in the left-right direction. The transmission case 2e is also disposed closer to the right side in the left-right direction, and the drive case 532 is disposed above the transmission case 2 e.

The second transmission shaft 533 transmits the power changed in the drive case 532. One end of the second transmission shaft 533 is coupled to the drive case 532, and the other end protrudes rearward of the drive case 532.

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

The first fertilizer applicator 51 includes a first hopper 511, a power transmission mechanism 512, a first input shaft 513, a first cover 514, and a first extraction unit 515.

The first fertilizer applicator 51 includes first hoppers 511 provided side by side in the left-right direction and corresponding to 4 ridges. The first fertilizer applicator 51 includes a spacer hopper 516 between the first hoppers 511 corresponding to 4 ridges and corresponding to 2 ridges on the left side of the first hoppers 511.

The first hopper 511 contains fertilizer therein. The first hopper 511 is open at the upper and lower portions thereof. The lower portion of the first hopper 511 is formed in a funnel shape. First cut portions 511a are formed in upper portions of side surfaces of the first hoppers 511 facing each other, and the internal spaces communicate with each other through the first cut portions 511 a. Further, a first notch 511a is also formed in an upper portion of a side surface of the first hopper 511 facing the spacer hopper 516. Further, a first communication hole 511b for communicating the internal space with the outside is formed in the right side surface of the first hopper 511 located on the rightmost side.

The partition 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 coupled to each other by bolts and nuts. The width in the left-right direction of the spacer hopper 516 is smaller than the width in the left-right direction of the first hopper 511, and is larger than the interval between the adjacent first hoppers 511.

The upper portion of the spacer hopper 516 is open and the lower portion of the spacer hopper 516 is blocked. Spacer hopper 516 is U-shaped when viewed from a side. Third notch portions 516a are formed on the left and right side surfaces of the spacer hopper 516, respectively. 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 internal spaces of the partitioned hopper 516 and the first hopper 511 communicate with each other. That is, the interiors of the first hoppers 511 provided with the partition hoppers 516 and corresponding to 2 ridges communicate with each other through the partition hoppers 516.

Both right and left end portions of the inner bottom surface 516b of the partition hopper 516 coincide with lower end portions of the third notch portions 516 a. The left and right center portions of the inner bottom surface 516b protrude upward beyond the left and right end portions. Further, the inner bottom surface 516b of the partition hopper 516 is located above the inner bottom surface of the first hopper 511. Thereby, the manure in the spacer hopper 516 is distributed into the adjacent first hopper 511. The power transmission mechanism 512 and the drive case 532 of the fertilization drive unit 53 are disposed in a space below the partition hopper 516.

The power transmission mechanism 512 transmits power from the fertilization drive section 53 to the first input shaft 513. The power transmission mechanism 512 is disposed behind the fertilization drive unit 53. The second transmission shaft 533 of the fertilization drive unit 53 is connected to the power transmission mechanism 512.

The first input shaft 513 is coupled 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 cover 514 covers the upper portions of the first hopper 511 and the partition hopper 516, and blocks the upper portions of the first hopper 511 and the partition hopper 516, which are open.

The first extraction portions 515 are respectively disposed at the lower portions of the first hoppers 511, and extract the fertilizer stored in the first hoppers 511 by a predetermined amount. The first extraction unit 515 includes an upper housing part 515a, an extraction mechanism 515b, and a lower housing part 515 c.

The upper-side container 515a receives the fertilizer dropped from the first hopper 511. The upper and lower portions of the upper receiving portion 515a are open, and the upper portion of the open upper receiving portion 515a is connected to the lower portion of the open first hopper 511.

The extraction mechanism 515b extracts the fertilizer in the upper storage 515a by a predetermined amount. The extraction mechanism 515b is driven by power transmitted through a drive bevel gear 515d fixedly provided on the first input shaft 513, a driven bevel gear 515e engaged with the drive bevel gear 515d, and an extraction shaft 515f fixedly provided on the driven bevel gear 515 e.

The lower container 515c receives the fertilizer supplied through the extraction mechanism 515 b. The lower accommodating portion 515c is disposed below the extracting mechanism 515 b. The upper and lower portions of the lower container 515c are open, and the upper portion of the open lower container 515c is connected to the drawing mechanism 515 b. The lower accommodating portion 515c is formed in a funnel shape, and a lower portion of the lower accommodating portion 515c having an opening is connected to a connection pipe 541a described later.

The second fertilizer applicator 52 includes a second hopper 521, a second input shaft 523, a second cover 524, and a second extraction unit 525.

The second fertilizer applicator 52 includes second hoppers 521 provided side by side in the left-right direction and corresponding to 5 ridges. The upper and lower portions of the second hopper 521 are open. The lower portion of the second hopper 521 is formed in a funnel shape. Second cutout portions (not shown) are formed in upper portions of side surfaces of the second hoppers 521 facing each other, and the inner spaces communicate with each other through the second cutout portions. Further, a second communication hole 521b for communicating the internal space with the outside is formed in the left side surface of the leftmost second hopper 521. The second hopper 521 has substantially the same structure as the first hopper 511, and therefore, the description thereof will be omitted.

The second input shaft 523 transmits power from the power transmission mechanism 512. The second input shaft 523 is disposed on the same axis as the first input shaft 513 and is coupled to the first input shaft 513 via a coupling portion 522.

The second cover 524 covers an upper portion of the second hopper 521, and blocks the upper portion of the second hopper 521, which is open.

The second drawing portions 525 are respectively disposed at lower portions of the second hoppers 521, and draw out the fertilizer stored in the second hoppers 521 by a predetermined amount. The second extraction portion 525 is driven by the power transmitted from the second input shaft 523. The configuration of the second extraction portion 525 is substantially the same as that of the first extraction portion 515, and therefore, the description thereof is omitted.

The lower fertilizer applicator 54 supplies fertilizer extracted from the first fertilizer applicator 51 and the second fertilizer applicator 52 to a field. The lower fertilizer applicator 54 includes a conveying unit 541, a fertilizer application unit 542, and an air blowing unit 543.

The conveyor 541 conveys the fertilizer extracted from the first extraction unit 515 and the second extraction unit 525. The conveying unit 541 includes a connection pipe 541a and a conveying hose 541 b. The connection pipe 541a is a cylindrical member extending in the front-rear direction, and the lower ends of the first extraction portion 515 and the second extraction portion 525 are connected. One end of the conveying hose 541b is connected to the rear end of the connection pipe 541a, and the other end of the conveying hose 541b extends to the vicinity of the planting unit 4b and is connected to the fertilizer application unit 542.

The fertilizer application unit 542 drops the fertilizer to the field. The other end of the conveyance hose 541b is connected to the fertilizer application unit 542.

The air blowing unit 543 blows air into the conveyance unit 541 to assist conveyance of the fertilizer. The blowing unit 543 includes a blower 543a and a blowing pipe 543 b. The blower 543a blows air into the air duct 543b and is disposed at the left end of the fertilization frame 50. In this way, the blower 543a is disposed on the side opposite to the drive box 532 in the left-right direction, whereby the weight balance of the fertilizer application device 5 in the left-right direction is favorably achieved. The air blowing tube 543b is a cylindrical member extending in the left-right direction, and the tip of the connection tube 541a is connected thereto. One end of the air supply duct 543b is connected to the blower 543 a. On the other hand, the other end of the blast pipe 543b is blocked. Thereby, the air supplied from blower 543a is sent to connection pipe 541 a.

The first rotating mechanism 55 supports the first fertilizer applicator 51 to be rotatable in the vertical direction with respect to the fertilizer frame 50. 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 of the first fertilizer applicator 51. The first bracket 551 is a plate-like member extending in the vertical direction, and has an upper end fixed to the lower portion of the first hopper 511 and a lower end connected to the fertilizer application frame 50.

The first rotating shaft 552 supports the front-rear direction as the axial direction at the right end of the fertilization frame 50. The posture of the first fertilizer applicator 51 can be changed to a driving posture located above the fertilizer application driving unit 53 shown in fig. 2 and a standing posture rotated upward about the first rotating shaft 552. As described above, the first notch portion 511a and the third notch portion 516a are formed in the side surfaces of the first hopper 511 and the partition hopper 516 on the sides facing each other, the internal spaces of the first hopper 511 and the partition hopper 516 are communicated with each other, and when the posture of the first fertilizer applicator 51 is changed to the upright posture, the fertilizer in the first hopper 511 and the partition hopper 516 on the upper side passes through the first notch portion 511a and the third notch portion 516a and is discharged to the outside from the first through hole 511 b.

The second rotating mechanism 56 supports the second fertilizer applicator 52 to be rotatable in the up-down direction with respect to the fertilizing frame 50. The second rotating mechanism 56 includes a second bracket 561 and a second rotating shaft 562.

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

The second rotation shaft 562 is supported by the left end of the fertilization frame 50 with the front-rear direction as the axial direction. The posture of the second fertilizer applicator 52 can be changed to a driving posture in which it is positioned above the fertilizer application driving unit 53 as shown in fig. 2 and a standing posture in which it is rotated upward around the second rotation shaft 562. As described above, the second notched portions are formed in the side surfaces of the second hoppers 521 facing each other, the internal spaces of the second hoppers 521 are communicated with each other, and when the posture of the second fertilizer applicator 52 is changed to the upright posture, the fertilizer in the upper second hopper 521 is discharged to the outside through the second notched portions 521 b.

[ other embodiments ]

In the above embodiment, the example in which the partition hoppers 516 are provided between the first hoppers 511 corresponding to 2 ridges on the left side among the first hoppers 511 corresponding to 4 ridges is shown, but the position in which the partition hoppers 516 are provided between the first hoppers 511 is not limited thereto. The partition bucket 516 may be provided between the first buckets 511 corresponding to 2 ridges on the right side of the first buckets 511 corresponding to 4 ridges, or may be provided between the first buckets 511 corresponding to 2 ridges in the middle of the first buckets 511 corresponding to 4 ridges.

In the above embodiment, the example in which the first fertilizer applicator 51 has the first hopper 511 and the partition hopper 516 corresponding to 4 ridges and the second fertilizer applicator 52 has the second hopper 521 corresponding to 5 ridges is shown, but is not limited thereto. For example, the first fertilizer applicator 51 may have a first hopper 511 and a partition hopper 516 corresponding to 5 ridges, and the second fertilizer applicator 52 may have a second hopper 521 corresponding to 6 ridges. The first fertilizer applicator 51 may have a first hopper 511 and a partition hopper 516 corresponding to 6 ridges, and the second fertilizer applicator 52 may have a second hopper 521 corresponding to 7 ridges.

While the embodiments of the present invention have been described above with reference to the drawings, it should be understood that the specific configurations are not limited to these embodiments. The scope of the present invention is indicated by the claims, rather than by the description of the embodiments described above, and all changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein.

Description of the reference numerals

1 … transplanter; 2 … driving device; 2a … driving machine body 2e … gearbox 4 … rice transplanting device; 5 … fertilizing apparatus; 51 … a first fertilizer applicator; 511 … a first hopper; 516 … separating the hoppers; 52 … second fertilizer applicator; 521 … a second hopper; 53 … fertilization drive part; 532 … drive box; 55 … a first rotating mechanism; 552 … a first rotating shaft; 56 … second rotation mechanism; 562 … second axis of rotation.

Claims

1. A fertilizer applying apparatus, which is provided to a rice transplanter and supplies fertilizer in a hopper to a field in units of a predetermined amount,

the fertilizer application device is provided with: a first fertilizer applicator disposed on one side of the body in the left-right direction; a second fertilizer applicator disposed on the other side of the body in the left-right direction; and a fertilizing drive unit for transmitting power to the first and second fertilizing machines,

first fertilizer distributor has the hopper corresponding with 4 ridges that set up side by side in the left and right direction of organism to constitute: the posture of the first fertilizer applicator can be freely changed into a driving posture positioned above the fertilizer application driving part and a standing posture which rotates upwards around a rotating shaft at one side of the left and right directions of the machine body,

the second fertilizer distributor has the hopper that sets up side by side with 5 ridges corresponding in the left and right direction of organism to constitute: the posture of the second fertilizer applicator can be freely changed into a driving posture positioned above the fertilizer application driving part and a standing posture which rotates upwards around a rotating shaft on the other side of the left-right direction of the machine body,

the fertilizing driving part is provided with a driving box for transmitting power from a gearbox of a traveling device of the rice transplanter,

the first fertilizer applicator is provided with spacing hoppers which are arranged between any hoppers corresponding to 4 ridges and 2 hoppers corresponding to 4 ridges,

when the first fertilizer applicator is in a driving posture, the spacing hopper is positioned above the driving box.

2. The fertilizing apparatus of claim 1, wherein,

the insides of the hoppers corresponding to the 2 ridges, which are provided with the spacing hoppers therebetween, are communicated with each other through the spacing hoppers.