JP3618299B2 - Riding type rice transplanter with fertilizer application - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a riding type rice planting with a fertilizer device, wherein a seedling planting device is connected to the rear part of the self-propelled aircraft so as to be movable up and down, and a fertilizer pump for supplying paste fertilizer to a fertilizer nozzle of the seedling planting device Related to the machine.
[0002]
[Prior art]
[0003]
[0004]
In the above rice transplanter, as shown in JP 2000-23519 A, when a fertilizer tank is provided on both sides of the self-propelled machine body and the fertilizer is supplied from the left and right fertilizer tanks to the fertilizer pump, The fertilizer can be mounted in a well-balanced state in which the weight of the paste fertilizer is distributed on both sides of the self-propelled aircraft.
[0005]
[0006]
[Problems to be solved by the invention]
[0007]
[0008]
When the fertilizer tanks are installed on both sides of the self-propelled aircraft, if the fertilizer in one tank is consumed faster than the fertilizer in the other tank, the balance between the left and right weights of the aircraft will deteriorate as the work progresses. It will become.
[0009]
[0010]
[0011]
[0012]
[0013]
An object of the present invention is to provide a riding type rice transplanter with a fertilizer device capable of mounting a fertilizer so that the weight of the paste fertilizer is distributed in a balanced manner on both sides of the self-propelled aircraft even after the work has started even at the beginning of the work. Is to provide.
[0014]
[Means for Solving the Problems]
The configuration, operation, and effect of the invention according to claim 1 are as follows.
[0015]
〔Constitution〕
An engine exhaust muffler is arranged on one end side of the front of the self-propelled aircraft in the lateral direction of the self-propelled aircraft, A fertilizer pump that connects the seedling planting device to the rear part of the self-propelled aircraft so as to be movable up and down, and supplies paste fertilizer to the fertilizer nozzle that the seedling planting device has, On the side of the side opposite to the side where the engine exhaust muffler is located in the lateral direction of the side of the side of the self-propelled aircraft. In the riding rice transplanter with fertilizer provided,
Self-propelled aircraft Front Of the fertilizer tanks arranged on both sides, the fertilizer tank far from the engine exhaust muffler is connected to the fertilizer tank at one end, and the fertilizer supply pump is connected to the fertilizer pump at the other end by the fertilizer supply main line. Connected to the self-propelled aircraft Front Of the fertilizer tanks arranged on both sides, the fertilizer tank closer to the engine exhaust muffler has one end connected to this fertilizer tank, and the other end connected to the fertilizer supply main pipe in the middle of the fertilizer supply branch pipe And the fertilizer supply main pipeline And a pipe path longer than the main fertilizer supply pipe Connected to the fertilizer pump.
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
[0024]
[Action]
Paste fertilizer in the fertilizer tank far from the engine exhaust muffler is supplied to the fertilizer pump by the fertilizer supply main line, and paste fertilizer in the fertilizer tank close to the muffler is supplied in the middle of the fertilizer supply main line by the fertilizer supply branch line. Since it is supplied to the pump, the fertilizer in the fertilizer tank close to the muffler is supplied to the fertilizer pump while receiving longer pipe resistance than the fertilizer in the fertilizer tank far from the muffler. Compared to the fertilizer in the fertilizer tank far from the muffler, the paste fertilizer in the fertilizer tank near the muffler is more likely to be heated and flow easily due to the heat radiation of the muffler. As a result, even if the same amount of paste fertilizer is put into the left and right fertilizer tanks and the work is started so that the fertilizer weights on both sides of the aircraft are equal, the fertilizer put into the left fertilizer tank and the right side The amount of consumption per unit time of both tanks is as much as possible due to the difference in pipe resistance acting on the fertilizer in the left and right tanks and the difference in fluidity of the fertilizer in the left and right tanks. Even if the amount of fertilizer remaining in the left and right tanks changes as the work progresses and the amount of fertilizer remaining in the left and right tanks changes as much as possible, the amount of fertilizer remaining in the left and right tanks becomes as much as possible and the weight of fertilizer on both sides of the aircraft becomes as equal as possible. You can proceed with the work.
[0025]
〔effect〕
Therefore, even at the beginning of the work, even after the work has progressed and the amount of fertilizer in each of the left and right tanks has changed, the same fertilizer weight is applied to both sides of the aircraft as much as possible, maintaining a good balance between the left and right weights. It is difficult to meander and you can work while maneuvering easily.
[0026]
The structure, operation, and effect of the invention according to claim 2 are as follows.
[0027]
〔Constitution〕
In the configuration of the invention according to claim 1, an attachment position where the fertilizer tanks on both sides of the self-propelled machine body enter a storage space below a seedling shelf in the reserve seedling storage device, and an attachment position which exits from the storage space, And a support for a hose connecting the fertilizer tank to a fertilizer pump is provided on the seedling rack post in the preliminary seedling storage device.
[0028]
[Action]
Since the support for the hose is provided on the seedling rack post in the reserve seedling storage device, the hose is tanked by the seedling rack post to provide the hose with a length that allows the tank to be removed from the storage space. The hose is prepared so that the hose does not shake greatly when the tank is taken in and out and when traveling.
[0029]
〔effect〕
The hose can be provided with a length that allows the tank to be taken in and out, so that the tank can be taken out of the storage space for easy fertilizer input, or returned to the storage space for easy handling.
On the other hand, it is possible to suppress a large swinging motion of the hose so that the hose does not hit the surrounding members, and the structure can be easily obtained by using the seedling rack column as a hose support means.
[0030]
The structure, operation, and effect of the invention according to claim 3 are as follows.
[0031]
〔Constitution〕
In the configuration of the invention according to claim 1 or 2, the fertilizer supply main pipeline is created as a separate part from the pipeline portion located on the lateral side of the engine fuel tank on the side of the machine body, and the pipeline portion. It is comprised by the other pipe line part connected to this pipe line part.
[0032]
[Action]
When assembling the self-propelled aircraft, the pipe line portion is assembled at a predetermined assembly position on the side of the fuel tank. At this time, it is assembled before the fuel tank is assembled so that the fuel tank does not become an obstacle. When the assembly of the self-propelled aircraft is completed and the fertilizer application is assembled, the pipeline portion created as a separate part from the pipeline portion of the fertilizer supply pipeline is replaced with the pipeline portion already assembled in the aircraft. The assembly method of connecting is adopted, and the fertilizer supply pipeline can be assembled in a piping state passing through the side of the fuel tank.
[0033]
〔effect〕
Therefore, it is possible to efficiently assemble the fuel tank so that the fuel tank does not become an obstacle, although the fertilizer supply pipe is assembled in a piping state passing through the side of the fuel tank.
[0034]
The configuration, operation, and effect of the invention according to claim 4 are as follows.
[0035]
〔Constitution〕
In the configuration of the invention according to any one of claims 1 to 3, a drain hole is provided in a state of being opened horizontally or substantially in the middle of the fertilizer supply branch pipe.
[0036]
[Action]
The drain pipe can be connected to the drain hole so that at least the base end side of the drain pipe extends horizontally or substantially horizontally from the drain hole. Then, even if part of the paste fertilizer that flowed from the fertilizer tank into the supply pipe during work enters the drain pipe from the drain hole, the fertilizer in the supply pipe is taken into the fertilizer pump and the fertilizer pipe becomes empty. Along with this, the fertilizer that has entered the drain pipe flows back from the drain hole of the supply pipe to the supply pipe, and the fertilizer becomes difficult to remain inside the drain pipe, or even if it remains.
[0037]
〔effect〕
Therefore, when the fertilizer remains in the fertilizer tank, it can be taken out from the drain hole. In addition, the fertilizer that has flowed into the drain pipe from the supply pipe easily flows back to the supply pipe, and there is a problem that a large amount of fertilizer remains in the drain pipe and it takes time to take out, or the remaining fertilizer solidifies and becomes clogged. It was made difficult to do.
[0038]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 and 2, a pair of left and right front wheels 1 that can be steered and driven, a pair of left and right rear wheels 2 that can be driven, a spare seedling storage device 3 that is located on both sides of the driving unit, and a driver's seat A seedling planting device 10 is connected to a rear end portion of a body frame 5 of a self-propelled machine body having a driving unit 4 via a link mechanism 6 and a seedling planting device is connected from the self-running machine body by a rotary shaft 7. 10 is configured to transmit power to 10, and the link mechanism 6 is moved up and down with respect to the body frame 5 by a lift cylinder 8 to move the seedling planting device 10 up and down. A fertilizer tank 21 arranged on both lateral sides of the driving part of the self-propelled aircraft, a side fertilizer application device 20 having a plurality of side fertilizer application nozzles 22 provided in the seedling planting device 10, and a driver seat 4 of the self-propelled aircraft A fertilizer tank 31 disposed on the side and a deep layer fertilizer 30 having a plurality of deep fertilizer nozzles 32 provided in the seedling planting device 10 are provided, thereby configuring a riding rice transplanter with a fertilizer. This riding type rice transplanter with a fertilizer application machine runs a self-propelled machine so that a plurality of seedlings are planted by the seedling planting device 10, and at the same time as this seedling planting operation, the side row fertilizer 20 and the deep layer fertilizer are used. 30 can perform fertilizing work to supply paste fertilizer to the field, and is configured in detail as follows.
[0039]
As shown in FIGS. 2, 6, etc., the seedling planting device 10 forms a planting machine body frame and both lateral sides of the rear end portions of the plurality of planting transmission cases 11 arranged in the lateral direction of the planting machine body. A seedling planting mechanism 12 is movably attached to the plurality of seedling planting mechanisms 12, and a seedling mounting table 13 provided with a seedling mounting unit for mounting the mat-like seedlings to be separately supplied to the plurality of seedling planting mechanisms 12 in the horizontal direction of the machine body is planted. Attached slidably in the lateral direction of the airframe to the upper part of the front of the airframe and reciprocated in the lateral direction of the airframe in conjunction with the seedling planting mechanism 12 carrying out the seedling planting motion, and supplying the seedlings to each seedling planting mechanism 12 The plurality of grounding floats 14 arranged in the lateral direction of the planting machine body are attached to the lower part of the planting machine body.
[0040]
As shown in FIG. 8 and the like, the side fertilizer application device 20 includes a pair of left and right fertilizer tanks 21 provided on a self-propelled machine body, and a fertilizer supply pipe made of a flexible pipe or the like at a fertilizer discharge portion of both fertilizer tanks 21. In a state where the fertilizer intake part is connected by the road 24, a plurality of parts located side by side in the lateral direction of the self-propelled machine body in a portion located behind the driver seat 4 on the lateral end side in the rear part of the self-propelled machine body The side strip fertilizer pump 23 and a plurality of side strip fertilizer nozzles 22 located in the seedling planting device 10 in a state where they are separately connected to the discharge side of the plurality of side strip fertilizer pumps 23 by fertilizer supply hoses 25. It is constituted by. The plurality of side-row fertilizer application nozzles 22 are arranged so as to be located one by one near the lateral side of each seedling planting mechanism 12 of the seedling planting device 10, and the tip side is below the bottom surface of the grounding float 14. It is attached to the grounding float 14 so as to protrude into the mud of the field.
[0041]
As shown in FIG. 8 and the like, the deep layer fertilizer 30 has a fertilizer intake side provided by the fertilizer tank 31 provided in the self-propelled aircraft and a fertilizer supply pipe 34 formed of a flexible pipe at the fertilizer discharge portion of the fertilizer tank 31. In the connected state, the side of the self-propelled aircraft is arranged in the lateral direction of the portion located on the rear side of the driver's seat 4 on the side opposite to the side where the side fertilizer pump 23 is located. A plurality of deep fertilizer pumps 33 and a plurality of deep fertilizer nozzles located in the seedling planting device 10 in a state where they are separately connected to the discharge side of the plurality of deep fertilizer pumps 33 by fertilizer supply hoses 35. 32. A plurality of deep fertilizer application nozzles 32 are arranged so that each one is positioned between the seedling planting locations of the seedling planting device 10, and the tip side protrudes downward from the bottom surface of the grounding float 14, and It is attached to the grounding float 14 so as to enter the mud deeper than the side fertilizer application nozzle 22.
[0042]
The plurality of fertilizer supply hoses 25 respectively connecting the side strip fertilization pumps 23 to the plurality of side strip fertilization nozzles 22 are provided by a single corrugated tube between the self-propelled machine body and the seedling planting device 10. It is bundled and covered. A plurality of the fertilizer supply hoses 35 respectively connecting the deep layer fertilization pumps 35 to the plurality of deep layer fertilization nozzles 32 are combined by a single corrugated tube between the self-propelled machine body and the seedling planting device 10. It is bundled and covered.
[0043]
Thereby, when both the side strip fertilizer 20 and the deep layer fertilizer 30 have put the paste fertilizer into the fertilizer tanks 21, 31, the fertilizer is taken out from the fertilizer tanks 21, 31 by the fertilizer pumps 23, 33. 22 and 32, and the depth determined by the penetration depth of the nozzles 22 and 32 by the fertilizer nozzles 22 and 32 in the mud near the place where the seedling planting mechanisms 12 of the seedling planting device 10 plant the seedlings. Supply. The side fertilizer application device 20 supplies fertilizer near the lateral sides of the plurality of planting seedlings by the plurality of seedling planting mechanisms 12 of the seedling planting device 10, and the deep layer fertilizer 30 is planted by the seedling planting device 10. Between seedlings, fertilizer is supplied to a location deeper than the side strip fertilizer 20 due to the difference in length of the deep layer fertilizer nozzle 32 and the side strip fertilizer nozzle 22 protruding downward from the ground contact float 14.
[0044]
Any side strip fertilization pump 23 and any deep layer fertilization pump 33 are configured as shown in FIG.
That is, a pump chamber 40, a discharge portion 41 having a discharge hole 41a communicating with one end side of the pump chamber 40, and a clogging sensor 42 having a pressure-sensitive detection portion facing one end side of the pump chamber 40 are respectively set on one end side. Provided with a fertilizer intake tube portion 43 and a mounting leg portion 44 in the middle portion, and a drive case portion 45 provided on the other end side. A pump casing 46, a rubber pump tube 47 fixed to the pump chamber 40, a spiral pump body 48 that passes through the pump tube 47 so as to be rotatable, and a drive case portion 45 are rotatable. And a pump drive shaft 49 supported by the motor.
[0045]
The pump drive shaft 49 is connected to the pump body 48 by a connecting member 49a that connects the end portions of the pump drive shaft 49 and the pump body 48 located inside the fertilizer intake cylinder portion 43 so as to be integrally rotatable. They are connected so that they can rotate together. The portions of the pump drive shaft 49 and the pump body 48 that are located inside the fertilizer intake cylinder portion 43 are arranged so as to be displaced with respect to the fertilizer intake cylinder portion 43. That is, the portions of the pump drive shaft 49 and the pump body 48 that are located inside the fertilizer intake cylinder 43 are offset upward with respect to the fertilizer intake chamber 43a and the fertilizer intake 43b on both sides of the fertilizer intake chamber 43a. It is located in mind, and a flow path through which paste fertilizer easily passes is formed on the bottom side of the fertilizer intake cylinder portion 43.
[0046]
As shown in FIGS. 9, 10, and the like, both the plurality of side fertilizer pumps 23 and the plurality of deep layer fertilizer pumps 33 have the axis of the fertilizer intake cylinder portion 43 facing the side of the self-propelled machine body, and the discharge portion 41 Are arranged in a line in the lateral direction of the self-propelled aircraft in a posture facing backward, and are fixed to the rear part of the body frame 5 of the self-propelled aircraft via a seat support member 60. The mounting legs 44 of the pumps 23 and 33 are fixed to the self-propelled aircraft by fixing them with mounting bolts.
[0047]
As shown in FIG. 10, FIG. 13, etc., in both the side strip fertilizer pump 23 and the deep layer fertilizer pump 33, the fertilizer intake cylinders 43 of the pair of adjacent pumps 23, 33 are directly connected to communicate with each other. It is. By the connecting rod 52 attached across the flanges provided in the cylinder 51 attached to the fertilizer intake cylinder 43 of the pumps 23 and 33 located at both ends of the pump row, and a nut attached to one end of the connecting rod 52 The fertilizer intake cylinder 43 of each pump 23, 33 and the communication pipe 50 are fastened and fixed in a connected state by the tightening force. The fertilizer supply pipes 24 and 34 from the fertilizer tanks 21 and 31 are connected to one of the pair of cylinders 51 so that the fertilizer intake cylinders 43 of the pumps 23 and 33 communicate with the fertilizer tanks 21 and 31. A cap 53 is attached to the cylindrical body 51.
[0048]
As a result, both the side strip fertilization pumps 23 and the deep layer fertilization pumps 33 drive the pump drive shaft 49 to drive the pump body 48 by this turning power, and the pump action by the pump body 48 and the pump tube 47. Thus, the paste fertilizer supplied from the fertilizer tanks 21 and 31 to the fertilizer intake cylinder portion 43 is taken into the pump chamber 40, discharged from the pump chamber 40 to the discharge portion 41, and supplied to the fertilizer supply hoses 25 and 35.
[0049]
Each side strip fertilization pump 21 and each deep layer fertilization pump 31 also show the rotational power of the rotary shaft 75 that transmits the rotational power of the output shaft of the mission case 70 located at the front of the self-propelled machine body to the rotary shaft 7 as shown in FIG. These are driven by being transmitted to the pump drive shaft 49 by the transmission structure shown in FIGS.
That is, the transmission structure for the side fertilizer pump 21 is attached to the input chain 81 wound around a chain sprocket attached to the middle of the rotary shaft 75 so as to be integrally rotatable, and to the seat support member 60 of the self-propelled machine body. One end side is rotatably supported by the support member 62, the other end side is rotatably supported by the support member 63 attached to the column portion 61 a of the pump base 61, and the input chain 81 is wound around one end. A transmission shaft 82 facing forward and backward of the machine body, a transmission chain 83 wound around the other end of the transmission shaft 82, and the transmission chain 83 wound around the input shaft 26a and the transmission support portion of the pump base 61 A side strip transmission 26 fixed to 61c and an output shaft 26b of the side strip transmission 26 are positioned closest to the side strip transmission 26. The pump drive chain 84 connected to the input side rotary body of the pump clutch 100 provided on the pump drive shaft 49 of the pump 23 and the input side rotary body of the pump clutch 100 of the pair of side fertilizer pumps 23 adjacent to each other. Are coupled to each other by the pump drive chain 85 and the mesh-type pump clutch 100 provided on the pump drive shaft 49 of each side fertilizer pump 23.
[0050]
The transmission structure for the deep fertilizer pump 33 includes the input chain 81, the transmission shaft 82, a transmission chain 91 wound around the other end of the transmission shaft 82, and the transmission chain 91 on the input shaft 36a. A deep layer transmission 36 that is wound and fixed to the transmission support 61c of the pump base 61, and a deep layer fertilization pump in which the output shaft 36b of the deep transmission 36 is located closest to the deep transmission 36. The pump drive chain 92 connected to the input side rotary body of the pump clutch 100 provided on the 33 pump drive shaft 49 and the input side rotary body of the pump clutch 100 of the pair of adjacent deep fertilizer pumps 33 are connected to each other. The interlockingly connected pump drive chain 93 and the meshing pump clutch 1 provided on the pump drive shaft 49 of each deep fertilizer pump 33 0 and are constituted by.
[0051]
As shown in FIG. 8, the fertilizer supply conduit 24 for supplying fertilizer from the pair of left and right fertilizer tanks 21 to each side fertilizer pump 23 includes an engine exhaust muffler of the left fertilizer tank 21 and the right fertilizer tank 21. The engine fuel is located below the rear end side of the front step 72 of the self-propelled aircraft from the fertilizer discharge part of the fertilizer tank 21 located far from 71 and located below the lateral end side of the operation step 73 of the self-propelled aircraft. The side of the rear end of the main frame of the self-propelled aircraft passes through the lateral side of the inner side of the fuselage of both sides of the tank 74, and rises from this part to the end of the side row fertilizer pump train. From the fertilizer supply main line 24a connected to the pump 23 at the end of the vehicle and the fertilizer discharge part of the fertilizer tank 21 located near the engine exhaust muffler 71 to the lower side of the rear end of the front step 72 of the self-propelled aircraft. enter, It passes under the other side of the lateral side of the running step 73 of the runner to reach the lateral outer side of the rear end of the main frame of the self-propelled aircraft. The fertilizer supply branch conduit 24b is connected to the fertilizer supply main conduit 24a in the middle of the fertilizer supply main conduit 24a.
Thereby, the fertilizer tank 21 which is far from the engine exhaust muffler 71 among the pair of left and right fertilizer tanks 21 is connected to the side fertilizer pump 23 by the fertilizer supply main pipeline 24a, and the other fertilizer tank 21 is connected. Fertilizer is fed to the side fertilizer pump 23 via a shorter pipe path. Of the pair of left and right fertilizer tanks 21, the fertilizer tank 21 that is close to the engine exhaust muffler 71 and is susceptible to heating due to heat radiation from the muffler 71 is provided on the pump side of the fertilizer supply branch line 24 b and the fertilizer supply main line 24 a. A part of the fertilizer is connected to the side fertilizer pump 23, and the fertilizer is supplied to the side fertilizer pump 23 through a longer pipe path than the other fertilizer tank 21.
[0052]
The fertilizer supply main conduit 24a is composed of a conduit portion 77 made of a vinyl chloride pipe located on the side of the engine fuel tank 74, and a flexible hose made of a separate piping component from the conduit portion 77, One side is connected to the pipe part 77 and the other side is connected to the fertilizer discharge part of the fertilizer tank 21. A pump-side line portion 79, which is composed of a connecting hose, a connecting pipe to which the fertilizer supply branch line 24b is connected, and one end side of which is connected to the pipe part 77 and the other end side to the side fertilizer pump 23; It is constituted by.
[0053]
As shown in FIGS. 3 and 4, each of the pair of left and right spare seedling storage devices 3 is formed of a bent pipe by a pair of front and rear support rods 65 extending laterally outward from the body frame 5 of the self-propelled aircraft. The seedling rack support 3a is supported, and the seedling rack 3b is attached to the seedling rack support 3a at a plurality of positions in the vertical direction across the front support column 3f and the rear support column 3r of the seedling support column 3a. is there.
[0054]
As shown in FIGS. 14 to 16, each of the pair of left and right fertilizer tanks 21 is attached to a self-propelled aircraft body by a mounting structure having a tank support body 102 fastened and fixed by a connecting bolt 101 on the outer surface side of the bottom portion of the fertilizer tank 21. It is attached.
[0055]
In other words, the front end side of the self-propelled aircraft body is connected to the front side support rod 65 via a mounting rod 103 made of a bent pipe, and the support arm 104 extending from the rear side support rod 65 of the self-propelled vehicle body is extended. The tank support 102 is attached to a pair of left and right support rails 105 that are connected to the rear end side through a pair of front and rear roller support shafts 106. Each of the pair of front and rear roller support shafts 106 is installed on a pair of left and right main support plates 102a of the tank support 102, and laterally extends from the upper and lower sides of the main support plate 102a of each of the pair of front and rear roller support shafts 106. Rollers 107 entering the guide grooves of the support rail 105 are rotatably attached to both ends protruding outward.
[0056]
As a result, the left and right fertilizer tanks 21 can be moved in the longitudinal direction of the machine body along the left and right support rails 105. By performing this moving operation, the seedlings of the preliminary seedling storage device 3 are shown in FIG. An attachment position that enters the storage space below the shelf 3b and an attachment position in which the fertilizer input port 21a located on the front end side of the fertilizer tank 21 protrudes forward from the storage space as shown by a one-dot chain line in FIG. Change position.
[0057]
A lock claw 111 is rotatably attached to a pair of front and rear support plates 102b of the tank support 102 by an attachment shaft 110, and the lock claw 111 is attached to a notch 105a of one support rail 105 by a biasing force of a lock spring 112. The lock mechanism is configured so as to fix the fertilizer tank 21 at the attachment position that has entered the accommodation space by being inserted.
[0058]
That is, when the paste fertilizer is introduced into the fertilizer tank 21, the mounting shaft 110 is attached by the rotary operation tool 113 that is rotatably attached to the end of the mounting shaft 110 protruding forward from the tank support 102. The manipulator tank 21 is moved to the front side from the storage space while the lock mechanism 111 is pivoted to swing the lock claw 111 to the side away from the notch 105a of the support rail 105 to switch the lock mechanism to the released state. The fertilizer input port 21a is put forward from below the seedling mounting shelf 3b so that the fertilizer is input so that the seedling mounting shelf 3b of the preliminary seedling storage device 3 does not obstruct fertilizer input. Then, when traveling such as performing work, the fertilizer tank 21 is returned to the storage space below the seedling rack 3b of the preliminary seedling storage device 3 so as not to become an obstacle for seeing the front from the operation unit, and this attachment position It is fixed so that it does not move by the lock mechanism.
[0059]
In each of the pair of left and right fertilizer tanks 21, halfway between flexible hoses 78 and 80 that are connected to the fertilizer discharge section of the tank 21 and form the main pipe line 24 a and the branch pipe line 24 b of the fertilizer supply pipe line 24. Is supported by being hooked on a support portion 3c provided with a rod-made hose catch attached to the front strut portion 3f of the seedling shelf strut 3a of the preliminary seedling storage device 3. At the extended end side of the flexible blazer pipe 116 extending from the blazer nozzle 115 located at the top of the tank 21, the opening 116 a of the blazer pipe 116 is a seedling in the second stage from the bottom of the preliminary seedling storage device 3. It arrange | positions so that it may be located in the lower surface vicinity of the mounting shelf 3b, and is fixed to the front side support | pillar part 3f in the seedling shelf support | pillar 3a with the securing tool 117, and is supported.
[0060]
As shown in FIGS. 18 and 19, the fertilizer supply branch pipe 24 b in the fertilizer supply pipe 24 connecting the pair of left and right fertilizer tanks 21 to a side fertilizer pump 23 and the fertilizer tank 31 are formed in a deep layer. A drain pipe 121 having a drain cock 120 attached in the middle thereof is connected to each of the fertilizer supply pipes 34 connected to the fertilizer pump 33.
The drain pipe 121 connected to the fertilizer supply branch pipeline 24b from the fertilizer tank 21 is provided by providing a hard pipe having a drain hole 122 in the middle of the vehicle body lateral portion of the fertilizer supply branch pipeline 24b. It is connected to the drain hole 122 that opens horizontally or substantially horizontally. The drain pipe 121 connected to the fertilizer supply pipe 34 from the fertilizer tank 31 is horizontal or substantially horizontal to the side of the vehicle body provided by providing a hard pipe having a drain hole 122 in the middle of the fertilizer supply pipe 34. It is connected to the drain hole 122 that opens in the direction.
[0061]
As shown in FIG. 7, grounding stands 125 are attached to two places of the square pipe material 16 facing the machine body that forms the machine frame of the seedling planting device 10.
As shown in FIG. 17, the attachment portion 125 a located on the base end side of each grounding stand 125 is rotatable by a connecting pin 127 to a support portion 126 a provided by fixing a support member 126 to the square pipe material 16. It is linked to.
Accordingly, each grounding stand 125 can be operated so as to swing up and down around the axial center of the connecting pin 127 with respect to each pipe member 16. As shown in FIG. 3, the portion extending rearward from the support 126a and located above the grounding float 14 over the entire grounding stand 125 and located slightly on the free end side from the mounting portion 125a is located behind each grounding float 14. Ascending and retracting posture in which the end side abuts and is supported by the float support pipe 17 that supports the height of the pipe, and extends downward from the support 126a as shown in FIG. The end side abuts on a support surface 126b made of a cushioning material of the support member 126 and is received and supported by the planting machine frame via the support member 126. Side are constituted to have to change in posture into a downward use position projecting downward from the ground float 14.
[0062]
In each grounding stand 125, a stand spring 130 is attached across a spring hook pin 128 provided on the base end side of the stand 125 and a spring hook pin 129 provided on the support member 126. The stand spring 130 has a state in which the grounding stand 125 swings and urges upward so that the spring hooking pin 128 moves around the connecting pin 127 as the grounding stand 125 moves up and down, and the grounding stand 125. Is switched to a state of swinging and biasing downward. As a result, the ground stand 125 is held by the stand spring 130 in this posture when in the raised storage posture and in this posture when in the lowered use posture.
[0063]
That is, when performing work, each grounding stand 125 is switched to the raised storage posture so as not to obstruct the work, and is held by this stand spring 130 in this posture. Then, when the seedling planting device 10 is lowered and supported on the ground or a loading platform, each grounding stand 125 is switched to the lowered use posture. Then, each grounding stand 125 is held in a lowered use posture by the stand spring 130, and as the seedling planting device 10 is lowered, a rubber material is attached to the free end side of each grounding stand 125. The grounding portion 125b reaches the ground or the bed prior to each deep layer fertilizer nozzle 32 and each side strip fertilizer nozzle 22, and each ground stand 125 connects each deep layer fertilizer nozzle 32 and each side strip fertilizer nozzle 22 to the ground or bed. The seedling planting device 10 is supported in a state where it floats from the top. Thereby, the seedling planting apparatus 10 is lowered and supported on the ground or the loading platform while the load of the seedling planting apparatus 10 is not applied to the deep layer fertilization nozzle 32 or the side stripe fertilization nozzle 22.
[0064]
[Another embodiment]
FIG. 21 shows an arrangement portion of a fertilizer pump of a riding type rice transplanter with a fertilizer application according to another embodiment, and this rice transplanter includes a seedling planting device capable of eight-row planting, A side fertilizer having eight side fertilizer pumps 23 and four deep layer fertilizer pumps 33 are provided with a deep fertilizer, and all side fertilizer pumps 23, side strip fertilizer transmissions 26, all are provided. The upper portion of the deep fertilizer pump 33 and the deep fertilizer transmission 36 is configured to be covered by a single cover 133.
[0065]
The cover 133 is composed of a main cover 133a and sub-covers 133b that are formed as separate parts from the main cover 133a and are installed on both sides of the main cover 133a. The main cover 133a is a rice transplanter equipped with six side fertilizer pumps 23, three deep fertilizer pumps 33, one side fertilizer transmission 26 and one deep fertilizer transmission 36. The same size and shape as the cover for covering the upper part of them. That is, the cover mounted on the 6-row planting rice transplanter and the main cover 133a mounted on the 8-row planting rice transplanter can be used together.
[Brief description of the drawings]
[Fig. 1] Side view of the entire riding rice transplanter with fertilizer application
[Fig. 2] Plan view of the entire riding rice transplanter with fertilizer application
FIG. 3 is a side view of a spare seedling storage device and a fertilizer tank arrangement part.
[Fig. 4] Front view of the entire riding rice transplanter with fertilizer application
FIG. 5 is a side view of the fertilizer pump mounting part.
FIG. 6 is a side view of a seedling planting apparatus.
FIG. 7 is a plan view of a fertilizer nozzle arrangement part.
FIG. 8 is a schematic plan view of a side strip fertilizer and a deep layer fertilizer
FIG. 9 is a front view of a fertilizer pump and a fertilizer transmission mounting portion.
FIG. 10 is a plan view of a fertilizer pump and a fertilizer transmission mounting portion.
FIG. 11 is a side view of a fertilizer pump mounting portion.
Fig. 12 Cross section of fertilizer pump
FIG. 13 is a cross-sectional view of a connecting portion of a side fertilizer pump
FIG. 14 is a sectional view of a fertilizer tank mounting structure
FIG. 15 is a plan view of a fertilizer tank mounting structure
Fig. 16 Rear view of fertilizer tank lock mechanism
FIG. 17 is a side view of a grounding stand arrangement portion.
FIG. 18 is a plan view of a drain portion in a fertilizer supply pipeline for side fertilizer application.
FIG. 19 is a plan view of a drain portion in a fertilizer supply channel for deep layer fertilization.
FIG. 20 is a longitudinal sectional view of the drain part.
FIG. 21 is a plan view of a fertilizer application pump disposition portion of a rice transplanter provided with another embodiment.
FIG. 22 is a perspective view of a rice transplanter cover including another embodiment.
[Explanation of symbols]
3 Reserve seedling storage device
3b Seedling shelf
3f Seedling shelf support
10 Seedling planting device
21,31 Fertilizer tank
22, 32 Fertilizer nozzle
23,33 Fertilizer pump
24a, 24b, 34 Fertilizer supply pipeline
71 Engine exhaust muffler
74 Engine fuel tank
77 Pipe line
78,79 pipeline section
80 hose
116 blazer pipe
116a Blazer pipe opening
122 Drain hole
125 Grounding stand

Claims (4)

An engine exhaust muffler is disposed on one side of the front of the self-propelled aircraft in the lateral direction of the self-propelled aircraft, and a seedling planting device is connected to a rear portion of the self-propelled aircraft so as to be movable up and down. Riding with a fertilizer device provided with a fertilizer pump for supplying paste fertilizer to a fertilizer nozzle having a lateral end side opposite to the side where the engine exhaust muffler is located in the lateral direction of the rear side of the self-propelled aircraft body A type rice transplanter,
Of the fertilizer tanks arranged on both sides of the front part of the self-propelled aircraft, the fertilizer tank far from the engine exhaust muffler is connected to this fertilizer tank at one end, and the other end is connected to the fertilizer pump The fertilizer tank connected to the fertilizer pump by the supply main line and arranged on both sides of the front part of the self-propelled aircraft is connected to the fertilizer tank closer to the engine exhaust muffler at one end to this fertilizer tank. The fertilizer supply apparatus which consists of the fertilizer supply branch pipe line which the end side connected to the middle of the said fertilizer supply main pipe line, and the said fertilizer supply main pipe line, and is connected to the fertilizer pump by the pipe path longer than the said fertilizer supply main pipe line Passenger type rice transplanter. The fertilizer tanks on both sides of the self-propelled machine body are switchably attached to an attachment position that enters a storage space below a seedling shelf in a reserve seedling storage device and an attachment position that exits from the storage space, and the fertilizer tank The riding type rice transplanter with a fertilizer applicator according to claim 1, wherein a support portion for a hose connected to a fertilizer pump is provided on a seedling rack post in the spare seedling storage device. The fertilizer supply main pipeline is located on the side of the engine fuel tank on the side of the body side of the engine fuel tank, and the other pipeline portion created separately from this pipeline portion and connected to this pipeline portion. The riding type rice transplanter with a fertilizer applicator according to claim 1 or 2. The riding type rice transplanter with a fertilizer application device according to any one of claims 1 to 3, wherein a drain hole is provided in a state of being opened in a horizontal or substantially horizontal direction in the middle of the fertilizer supply branch pipe.

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