JP2022049744A - Sulky type seedling transplanter - Google Patents

Abstract

To provide a sulky type seedling transplanter which has a fertilization device capable of adjusting a fertilizer feeding amount with good working property and properly performing the adjustment.SOLUTION: There is provided a sulky type seedling transplanter comprising a seedling planting unit 3 and a fertilization device 4 on a travel vehicle body 1, in the transplanter, a feeding amount adjuster 131 for adjusting a fertilizer feeding amount of the fertilization device 4 is provided on one side of left and right sides of the travel vehicle body 1.SELECTED DRAWING: Figure 2

Description

The present invention relates to a passenger-type seedling transplanting machine in which a seedling planting device is mounted on a traveling vehicle body.

Conventionally, there is a riding type seedling transplanting machine in which a seedling planting device is connected to the rear of a traveling vehicle body and further equipped with a fertilizer application device. (See, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2008-220250

The conventional fertilizer application device has a configuration in which a feeding amount adjusting handle for adjusting the feeding amount of fertilizer is arranged at the center of the left and right sides of the traveling vehicle body. Normally, the amount of fertilizer delivered is adjusted before the work in the field (seedling transplanting work and fertilizer application work), and in order to adjust the amount of fertilizer delivered, the amount of fertilizer delivered is purposely boarded on the traveling vehicle body. The adjustment handle had to be operated, and the workability was poor.

The present invention has been made in view of the above, and an object of the present invention is to provide a riding type seedling transplanting machine equipped with a fertilizer application device capable of adjusting the amount of fertilizer to be delivered with good workability and still being able to perform it appropriately. do.

The invention according to claim 1 is a riding type seedling transplanting machine in which a seedling planting device 3 and a fertilizer application device 4 are mounted on a traveling vehicle body 1, and a traveling vehicle body 1 is provided with a feeding amount adjusting tool 131 for adjusting the fertilizer feeding amount of the fertilizer applying device 4. It is a riding type seedling transplanting machine installed on one side of the left and right sides of the.

According to the first aspect of the present invention, since the feeding amount adjusting tool 131 for adjusting the fertilizer feeding amount of the fertilizer applying device 4 is provided on one left and right side of the traveling vehicle body 1, the traveling vehicle body 1 is used when adjusting the fertilizer feeding amount. The fertilizer feeding amount can be adjusted by operating the feeding amount adjusting tool 131 on the ground on the left and right sides of the traveling vehicle body 1 without boarding the vehicle, and the workability is good. However, since the operator can adjust the fertilizer feed amount by operating the feed amount adjuster 131 while standing on the ground on the left and right sides of the traveling vehicle body 1, visually check how much fertilizer is actually delivered. It can be adjusted, and the amount of fertilizer delivered can be adjusted appropriately.

The invention according to claim 2 is the passenger-type seedling transplanting machine according to claim 1, wherein the fertilizer recovery operation tool 130 for discharging fertilizer in the fertilizer tank 67 of the fertilizer application device 4 is provided near the delivery amount adjusting tool 131. Is.

According to the invention according to claim 2, in addition to the effect of the invention according to claim 1, the fertilizer recovery operation tool 130 for discharging fertilizer in the fertilizer tank 67 of the fertilizer application device 4 is provided with the feed-out amount adjusting tool 131. Since it is installed nearby, the fertilizer feed amount adjustment handle 131 and the fertilizer recovery lever 130 can be adjusted while the fertilizer feed amount adjustment before the start of the work and the fertilizer recovery work after the work are performed while standing on the ground on one side of the left and right sides of the traveling vehicle body 1. Workability is good because it can be operated.

According to the third aspect of the present invention, a fertilizer recovery pipe 65 for discharging fertilizer in the fertilizer tank 67 of the fertilizer application device 4 is provided in the left-right direction of the machine body, a blower 69 is provided on one side of the fertilizer recovery pipe 65, and fertilizer is provided on the other side. The passenger-type seedling transplanting machine according to claim 2, wherein a collection port 66 is provided, and a feeding amount adjusting handle 131 and a fertilizer recovery lever 130 are provided near the fertilizer recovery port 66.

The invention according to claim 4 is the passenger-type seedling transplanting machine according to claim 3, wherein a cleaning nozzle 150 for ejecting air from a blower 69 is provided near a fertilizer recovery port 66.

The invention according to claim 5 is the passenger-type seedling transplanting machine according to claim 4, wherein the nozzle fixing tool 160a for storing and fixing the cleaning nozzle 150 is provided on the handrail 160 provided near the left and right side portions of the fertilizer application device 4.

It is a side view of the passenger type rice transplanter which concerns on embodiment of this invention. Same as above It is a plan view of a passenger-type rice transplanter. It is a front view of the main part of the passenger-type rice transplanter as above. It is a plan view of the main part of the same as above. It is a side view of the main part of the same as above.

A four-row planting riding type rice transplanter, which is an embodiment of the riding type seedling transplanting machine of the present invention, will be described with reference to the drawings.
<Overall configuration>
In the passenger-type rice transplanter, the seedling planting device 3 is attached to the traveling vehicle body 1 by the elevating link device 2, and the fertilizer application device 4 is provided. The traveling vehicle body 1 is a four-wheel drive vehicle having a pair of left and right front wheels 6, 6 and rear wheels 7, 7 which are driving wheels.

In this specification, the left and right sides of the passenger-type rice transplanter in the forward direction are referred to as the left side and the right side, respectively, the forward direction is referred to as the front side, and the reverse direction is referred to as the rear side.
<Running body 1>
In the traveling vehicle body 1, the mission case 11 and the engine 12 are arranged on the main frames 10a and 10b, and the hydraulic pump 13 is integrally assembled with the mission case 11 on the rear side surface of the mission case 11 in front of the mission case 11. A steering post 14 is projected above the portion.

A steering handle 16 is provided at the upper end of the steering post 14. A step floor 19, which is a floor for maneuvering, is attached to the upper part of the machine body, and a driver's seat 20 is installed above the engine 12. A shift lever 17 is provided on the right side of the steering wheel 16, and a ridge clutch lever 18 is provided on the right side of the driver's seat 20. The front wheels 6 and 6 are pivotally supported by the front wheel support cases 22 and 22 provided so as to be rotatable sideways to the mission case 11. Further, the rear wheels 7 and 7 are provided on the rear wheel drive shafts 23 of the rear wheel transmission cases 24 and 24 attached to the left and right ends of the left and right frames 37. The left and right frames 37 are supported by the rear ends of the main frames 10a and 10b.

The rotational power of the engine 12 is transmitted to the input shaft 32a of the hydraulic continuously variable transmission (HST) 31 via the pulley 27, the belt 28, and the pulley 29 in sequence, and is transmitted from the output shaft 32b of the HST 31 into the mission case 11. Be done.

The rear end portions of the rear output shafts 11a and 11b project to the rear of the mission case 11, and the left and right rear wheel transmission shafts 35 and 35 transmitted to the rear wheel transmission cases 24 and 24 are connected to the protruding end portions. The left and right rear wheel transmission shafts 35 and 35 drive and rotate the left and right rear wheels 7, 7 respectively.

Then, the driving force is transmitted from the mission case 11 to the PTO transmission case provided at the rear of the traveling vehicle body 1 via the drive shaft, and from the PTO transmission case to each fertilizer feeding portion 68 of the fertilizer application device 4 via the fertilizer application drive mechanism S. The driving force is transmitted, and the driving force is transmitted to the seedling planting device 3 via the PTO transmission shaft 45.

Further, the pedal 86 provided on the front part of the traveling vehicle body 1 can operate both the main clutch and the left and right rear wheel brake devices (not shown), and is arranged on the lower right side of the steering handle 16. When you step on 86, the main clutch is disengaged, then the left and right rear wheel brakes are applied, and the aircraft stops.

In addition, the front arm 88 is projected from the front of the machine, and the center mascot 89 is freely inserted and removed from the tip of the front arm 88 into the front arm 88 to integrate the front arm 88 and the center mascot 89 into the center. A lamp 89a is provided at the tip of the mascot 89, and the front arm 88 and the center mascot 89 are used as one lever. Further, side markers 44 are provided on both front sides of the step floor 19.

Spare seedling stands 99 are provided on both the left and right sides of the front part of the traveling vehicle body 1.
<Sapling planting device 3>
The seedling planting device 3 is vertically mounted on the traveling vehicle body 1 by an elevating link device 2.

The upper end of the piston of a general lift cylinder 36 whose base is rotatably provided on the traveling vehicle body 1 is connected to the elevating link device 2, and the elevating valve (not shown) is provided by the hydraulic pump 13 provided on the traveling vehicle body 1. ), The hydraulic oil is supplied and discharged to the lift cylinder 36, and the piston of the lift cylinder 36 is extended and retracted so that the seedling planting device 3 connected to the elevating link device 2 is moved up and down. Has been done.

The seedling planting device 3 is supported by a planting transmission case 38 that also serves as a frame freely mounted on the rear portion of the elevating link device 2 and a support member provided on the planting transmission case 38, and is supported in the left-right direction of the machine body. A seedling planting table 39 that reciprocates in the field, a seedling planting tool 41 that is attached to the rear end of the planting transmission case 38 and plants seedlings one by one from the lower end of the seedling transfer case 39, and a planting transmission case 38. It is composed of a center (sensor) float 42, a side float 43, and the like, which are ground leveling bodies in which the rear portion is pivotally supported at the lower portion of the above and the front portion thereof is mounted so as to be swingable up and down. The center float 42 and the side float 43 are provided to level the front of the field where the seedlings are planted by the seedling planting tool 41.

The PTO transmission shaft 45 has universal joints at both ends and is provided to transmit the power from the mission case 11 to the planting transmission case 38 of the seedling planting device 3. Further, the elevating link sensor 51 is provided between the elevating link base frame 15 erected on the main frames 10a and 10b and the elevating parallel link members 2a and 2b of the elevating link device 2 for elevating and lowering. It is a potentiometer that detects the movement of the device 2, and can detect that the seedling planting device 3 has been raised to the highest position by manual operation or the like.

An eclipse angle sensor (not shown) provided at the front of the center float 42 detects the height of the seedling planting device 3 with respect to the ground, and is controlled based on the detection value of the crevice angle sensor. The lift valve is controlled by the device, and the lift cylinder 36 is configured to control the vertical position of the seedling planting device 3.

That is, when the reception angle sensor detects that the front portion of the center float 42 has been lifted above an appropriate range by an external force, the hydraulic pump 13 sends the pressure oil pumped from the inside of the mission case 11 to the lift cylinder 36. The piston is projected and the elevating link device 2 is moved upward to raise the seedling planting device 3 to a predetermined position, and the reception angle sensor detects that the front part of the center float 42 has fallen below the appropriate range. When this happens, the hydraulic oil in the lift cylinder 36 is returned to the inside of the mission case 11 and the elevating link device 2 is moved downward to lower the seedling planting device 3 to a predetermined position.

When the front part of the center float 42 is in the appropriate range (when the detection value of the contact angle sensor is in the appropriate range and the seedling planting device 3 is at the appropriate ground height), the inside of the lift cylinder 36 The inflow and outflow of the pressure oil is stopped to hold the seedling planting device 3 in a fixed position.

In this way, the center float 42 is used as a grounding sensor for automatic height control of the seedling planting device 3.

The seedling planting device 3 has a four-row planting configuration, a planting transmission case 38 that also serves as a frame, a seedling stand 39 that carries seedlings and reciprocates left and right to supply seedlings one by one to the seedling outlet 39a of each row. It is equipped with a seedling planting tool 41 or the like for planting the seedlings supplied to the seedling outlet 39a in the field.

A rotor 70a is arranged in front of the center float 42, and the rotor 70a is arranged in front of the rotor 70b in front of the side float 43. Power is transmitted from the gear in the transmission case 24 of the rear wheel 7 to the rotor 70a via the transmission shaft 25, and power is transmitted to the rotor 70b from the drive shafts (not shown) of both rotors 70a and 70a, respectively. Power is transmitted from a pair of chains (not shown) in the pair of chain cases 71, 71.

Further, the rotor 70a is suspended via a spring 78 by a pair of link members 76, 77 whose upper ends are supported by the beam member 73.

The pair of link members 76, 77 has a first link member 76 whose one end is fixedly supported by a beam member 73 and a second link member 77 whose one end is rotatably connected to the other end of the first link member 76. The spring 78 is connected between the other end of the second link member 77 and a mounting piece rotatably supported by a reinforcing member (not shown).

Further, the lower end portion of the rotor vertical position adjusting lever 81 is rotatably supported by the support frame body 72. By rotating the first link member 76 upward, the rotor 70a can be raised upward via the second link member 77 and the spring 78. When the rotor 70a is moved upward, the rotor 70b is also moved upward at the same time.
<Fertilizer application device 4>
The fertilizer application device 4 dispenses the fertilizer in the fertilizer tank 67 downward by a fixed amount by each fertilizer feeding unit 68, transfers the fed fertilizer to each fertilizer guide 80 through each fertilizer hose 62 by a blower 69, and each fertilizer is applied. Granular fertilizer is applied to the field by dropping it into the fertilizer application groove formed near the side portion of the seedling planting row by the groove body 82 provided on the front side of the guide 80.

The fertilizer tank 67 is shared by each article, and a lid 67a that can be opened and closed is attached to the upper part. The lower part of the fertilizer tank 67 is branched into a number of fertilizer strips to form a funnel, and the lower part is connected to the upper end of each feeding portion 68.

The fertilizer tank 67 is attached to two left and right rotating arms 64 supported by a horizontally long fertilizer application side frame 63 fixed to the upper ends of the left and right elevating link base frames 15 and 15, and the rotation thereof. The lower end portion of the arm 64 is rotated backward around the fulcrum so as to be separated from each feeding portion 68. The rotating arm 64 is arranged between the first feeding portion and the second feeding portion from the outside (two are provided at symmetrical positions). In a normal position where the lower portion of the fertilizer tank 67 is connected to the upper end of each fertilizer feeding portion 68, the fertilizer tank 67 is fixed by a locking tool.

The fertilizer application drive mechanism S, which transmits a driving force from the PTO transmission case to each fertilizer delivery unit 68 of the fertilizer application device 4, is composed of a conventionally known connecting rod and a rotary arm, and also has a delivery amount as an example of a delivery amount adjuster. The fertilizer feeding amount of each fertilizer feeding section 68 is adjusted by moving the rotation fulcrum of the rotating arm with the adjusting handle 131 to change and adjust the number of rotations of the feeding drive shaft 105 of each fertilizer feeding section 68 per unit time. (For example, the fertilizer application driving mechanism described in JP-A-2006-166820).

In particular, in the present embodiment, the feeding amount adjusting handle 131 is provided near the fertilizer recovery lever 130 as an example of the fertilizer recovery operating tool provided near the fertilizer recovery port 66 at the right end of the fertilizer application device 4, which will be described later. .. Therefore, when adjusting the fertilizer feeding amount of each fertilizer feeding portion 68, since the feeding amount adjusting handle 131 is provided at the right end portion of the fertilizer applying device 4, the left side of the traveling vehicle body 1 does not get on the traveling vehicle body 1. The fertilizer feeding amount can be adjusted by operating the feeding amount adjusting handle 131 on the ground, and the workability is good. However, since the worker is standing on the ground on the left side of the traveling vehicle body 1, when the fertilizer feeding amount is adjusted by operating the feeding amount adjusting handle 131, how much granular fertilizer is actually discharged from each fertilizer application guide 80. Since it can be visually adjusted to see if it is being fed out, the amount of fertilizer delivered can be adjusted appropriately.

Further, the fertilizing power transmitted to the feeding drive shaft 105 is rotatably fitted to each cylinder shaft 107 via the fertilizing ridge clutches 106a, 106b, 106c, 106d provided for each row. Is transmitted to. Then, it is transmitted from each cylinder shaft 107 to each feed shaft via each feed transmission gear 108 composed of a pair of feed transmission gears.

As shown in FIGS. 3, 4, and 5, each feeding unit 68 has two feeding rolls 121A and 121B that feed the fertilizer in the fertilizer tank 67 downward. These feeding rolls 121A and 121B are rotating bodies having groove-shaped recesses formed in the outer peripheral portion thereof, and are fitted to a common feeding shaft provided in the left-right direction so as to rotate integrally with each other. By rotating the feeding rolls 121A and 121B, the fertilizer dropped and supplied from the fertilizer tank 67 is accommodated in the recess and fed downward. The fertilizer delivered by both feeding rolls 121A and 121B is discharged from the discharge port at the lower end.

A connecting pipe 111 that communicates in the front-rear direction is connected to the discharge port of each feeding portion 68. The fertilizer application hose 62 is connected to the rear end of the connecting pipe 111. Since the lower end of the frame 63 on the fertilizer application device side is engaged with the outer spiral groove of the fertilizer hose 62, the fertilizer hose 62 is difficult to come off from the connecting pipe 111.

On the other hand, the front end portion of the connecting pipe 111 of each strip is inserted and connected to the back surface portion of the air chamber 61. The left end of the air chamber 61 is connected to the blower 69 via the air switching pipe 113, and the air from the blower 69 is blown from the connecting pipe 111 to the fertilizer hose 62 via the air chamber 61. There is.

Further, a fertilizer discharge port for taking out fertilizer in the fertilizer tank 67 is formed on the back surface of each feeding portion 68. The fertilizer discharge port of each feeding section 68 is connected to a fertilizer recovery pipe 65 provided behind each feeding section 68, which is long in the left-right direction.

A discharge shutter is provided at each fertilizer discharge port of each feeding unit 68. At the time of fertilizer application work, the discharge shutter is closed and the granular fertilizer in the fertilizer tank 67 is dropped and supplied to each feeding section 68. It falls into the recovery tube 65.

The left end of the fertilizer recovery pipe 65 is connected to the blower 69 via the air switching pipe 113. The air switching pipe 113 is a bifurcated pipe, one of which is connected to the air chamber 61 and the other of which is connected to the fertilizer recovery pipe 65. The air switching pipe 113 is provided with an air switching shutter 118 as an air switching unit, and can be switched between a state in which the air blown from the blower 69 is supplied to the air chamber 61 side and a state in which the air is supplied to the fertilizer recovery pipe 65 side. It has become. Since the air switching shutter 118 is located in the front-rear central portion between the air chamber 61 and the fertilizer recovery pipe 65, the air supply to both is stable. The right end of the fertilizer recovery pipe 65 is a fertilizer recovery port 66.

A fertilizer recovery lever 130 is rotatably provided near the fertilizer recovery port 66 at the right end of the fertilizer application device 4. The fertilizer recovery lever 130 is connected to each of the discharge shutters by an air switching shutter 118 via an operation linking member, and when the fertilizer recovery lever 130 is rotated to the fertilizer discharge side, the air switching shutter 118 is switched and the blower 69. Air is supplied to the fertilizer recovery pipe 65, and each discharge shutter 116 is opened, and the fertilizer in the fertilizer tank 67 is discharged to the fertilizer recovery pipe 65. Then, the granular fertilizer is conveyed by the air of the blower 69 through the fertilizer recovery pipe 65 and discharged from the fertilizer recovery port 66. At this time, since the fertilizer recovery lever 130 is provided near the fertilizer recovery port 66 at the right end of the fertilizer application device 4, a fertilizer recovery container, a fertilizer storage bag, or the like is placed under the fertilizer recovery port 66 to fertilize. Work can be performed while checking the recovery status, and appropriate fertilizer recovery work can be performed with good workability.

In short, since the delivery amount adjusting handle 131 and the fertilizer recovery lever 130 are provided near the fertilizer recovery port 66 at the right end of the fertilizer application device 4, when adjusting the fertilizer delivery amount of each fertilizer delivery section 68, work is performed. The person can operate the feeding amount adjusting handle 131 on the ground on the left side of the traveling vehicle body 1 to adjust the fertilizer feeding amount without getting on the traveling vehicle body 1, and the workability is good. However, since the worker is standing on the ground on the left side of the traveling vehicle body 1, when the fertilizer feeding amount is adjusted by operating the feeding amount adjusting handle 131, how much granular fertilizer is actually discharged from each fertilizer application guide 80. Since it can be visually adjusted to see if it is being fed out, the amount of fertilizer delivered can be adjusted appropriately. Further, when performing the fertilizer recovery work, the worker also stands on the ground on the left side of the traveling vehicle body 1 and operates the fertilizer recovery lever 130 to put the fertilizer recovery container, the fertilizer storage bag, etc. into the fertilizer recovery port 66. By placing it on the lower side, you can work while checking the fertilizer recovery status, and you can perform appropriate fertilizer recovery work with good workability.

Therefore, the fertilizer feeding amount adjustment before the start of the work and the fertilizer recovery work after the work can be performed by operating the adjacent feeding amount adjusting handle 131 and the fertilizer recovery lever 130 while standing on the ground on the left side of the traveling vehicle body 1. Good workability.

Reference numeral 150 is a cleaning nozzle for ejecting air. The base end portion of the hose 150a is communicated with the right end wall surface of the fertilizer recovery pipe 65, and the opening / closing nozzle 150b is provided at the tip end portion of the hose 150a. Further, a nozzle fixing hook 160a as a nozzle fixing tool is provided on the handrail 160 arranged slightly in front of the machine body at the outer positions of the left and right ends of the fertilizer application device 4, and when the cleaning nozzle 150 is not used, the nozzle 150b is fixed to the nozzle. It is locked and fixed to the hook 160a and stored.

Therefore, after the fertilizer recovery work is completed, the operator operates the fertilizer recovery lever 130 to the fertilizer discharge side to switch the air switching shutter 118 and supply the air of the blower 69 to the fertilizer recovery pipe 65. When the nozzle 150b is removed from the nozzle fixing hook 160a and gripped to open the nozzle 150b, air is ejected from the tip of the nozzle 150b. Can be cleaned.

1 Traveling vehicle body 3 Seedling planting device 4 Fertilizer application device 65 Fertilizer recovery pipe 66 Fertilizer recovery port 67 Fertilizer tank 69 Blower 130 Fertilizer recovery operation tool (fertilizer recovery lever)
131 Feeding amount adjuster (feeding amount adjusting handle)
150 Cleaning Nozzle 160 Handrail 160a Nozzle Fixture (Nozzle Fixture Hook)

Claims (5)

In a passenger-type seedling transplanting machine equipped with a seedling planting device (3) and a fertilizer application device (4) on a traveling vehicle body (1), a feeding amount adjusting tool (131) for adjusting the fertilizer feeding amount of the fertilizer applying device (4) is run. A passenger-type seedling transplanting machine characterized by being installed on one side of the vehicle body (1) on the left and right sides. The first aspect of the present invention, wherein the fertilizer recovery operation tool (130) for discharging the fertilizer in the fertilizer tank (67) of the fertilizer application device (4) is provided near the delivery amount adjusting tool (131). Riding type seedling transplanting machine. A fertilizer recovery pipe (65) for discharging fertilizer in the fertilizer tank (67) of the fertilizer application device (4) is provided in the left-right direction of the machine, a blower (69) is provided on one side of the fertilizer recovery pipe (65), and the other side. The passenger type according to claim 2, wherein a fertilizer recovery port (66) is provided in the fertilizer recovery port (66), and a feeding amount adjusting handle (131) and a fertilizer recovery lever (130) are provided near the fertilizer recovery port (66). Seedling transplanter. The passenger-type seedling transplanting machine according to claim 3, wherein a cleaning nozzle (150) for ejecting air from a blower (69) is provided near the fertilizer recovery port (66). The passenger-type seedling according to claim 4, wherein a nozzle fixture (160a) for storing and fixing a cleaning nozzle (150) is provided on a handrail (160) provided near the left and right sides of the fertilizer application device (4). Transplant machine.

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