JP5780335B2 - Seedling transplanter - Google Patents

Description

  The present invention relates to a seedling transplanting machine provided with a planting device and a drug application device in a machine body.

  In a walking type drug-applied seedling transplanter equipped with a planting device and a drug application device on a machine body provided with a main wheel and a steering handle for walking operation in a transmission gearing device, a prescribed amount of drug ( In order to apply chemicals such as fertilizers, bactericides, and insecticides, it is necessary to adjust the timing of the planting hopper and require a complicated power transmission system to cope with changes in the distance between strains. In addition, since a problem in maintenance cannot be avoided, a planting apparatus including a drug application device disclosed in Patent Document 1 is known in order to solve this problem.

  This seedling transplanting device is a device that applies a prescribed amount of medicine simply and reliably by providing a drug application device to a seedling stock supply device with a rotating table equipped with a rotating cup that receives the input seedling stock. The seedling can be planted in the field by a planting hopper that moves up and down.

JP 2000-125619 A

  However, since the drug application device having the above-described configuration is configured such that the drug is supplied from above to the seedlings in the orbiting cup, a large amount of drug adheres to the leaves and stems of the seedlings, and the seedlings are affected by chemical damage. As a result, there was a problem in the growth of seedlings after transplanting. In addition, there is a problem that a drug may adhere to a cup for transferring a seedling to be planted or may adhere to a planting tool, resulting in variation in application rate.

  The problem to be solved is to provide a walking-type drug-applied seedling transplanter capable of appropriately applying a prescribed amount of drug to seedlings with a simple configuration and reliably applying timing.

The invention of claim 1 includes a planting device for planting seedlings with a planting hopper (3), a seedling supply device (20) for supplying seedlings to the planting hopper (3), and a planting hopper (3). A pressure-reducing wheel (4) for suppressing the seedling planting position and a drug application device (51) having a feeding mechanism (52) for feeding the medicine are provided , and a guide hose (54) is connected to the feeding mechanism (52). At the same time, a rib (4c) is formed on the inner side surface (B) of the pressure reducing wheel (4), and the outlet of the guide hose (74) is fixed at a position where the inner side surface (B) is inclined outward and the medicine hits. Use a seedling transplanter.

According to the invention of claim 2, two planting hoppers (3) and pressure-reducing wheels (3) are arranged in parallel in the left-right direction of the fuselage, and left and right planting hoppers (3) are formed by left and right wheel-pressure wheels (3). is configured to be put down each side seedling planting position, the discharge port of the lower end of the guide hose (54), attached to the support frame of the suppression device (4) (4a), the machine body lateral direction closer to the center than the planting position of the seedlings In addition, the support frame (4a) is slid to adjust the interval , and the center position of the medicine application device (51) is adjusted by sliding the discharge port at the lower end of the guide hose (54). The seedling transplanter according to claim 1, wherein the seedling transplanter is arranged at a central position between the largest and smallest stripes .

According to invention of Claim 1 , a chemical | medical agent can be reliably put in the planting hole before suppression.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the maximum of the inter-row adjustment performed by sliding the discharge port at the lower end of the guide hose (54) at the center position of the medicine application device (51). Since it has arrange | positioned in the center position between a streak and the minimum streak, the change of the time lag until the chemical | medical agent fall by a streak adjustment can be suppressed.

In addition , since the discharge port at the lower end of the guide hose (54) is attached to the support frame (4a) of the pressure reducing device (4) and the striation is adjusted by sliding the support frame (4a), the striation adjustment is performed. Therefore, the positional relationship between the discharge port and the seedling can be maintained.

Furthermore , the discharge port of the guide hose (54) can be closer to the center of the cocoon than the planting position of the seedling, and this corresponds to the trapezoid cocoon where the left and right outer sides of the cocoon fall and the drug easily flows due to rain. I can .

Side view of ambulatory drug-applied seedling transplanter according to the present invention The main part rear view of the seedling transplanter of FIG. Side view of essential parts of drug application device with slide support Rear view of the drug application device of FIG. Side view of the main part of the drug application device loaded with the pressure wheel assembly FIG. 5 is a rear view of the medicine application device of FIG. Side view (a) and enlarged view (b) of the principal part of the chemical application device for planting hopper loading Side view of the main part of the medicine application device arranged in the planting cover

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
FIG. 1 is a side view of a walking-type drug-applied seedling transplanter according to the present invention.
A two-row planted seedling transplanter according to an embodiment of the present invention will be described below. In the following description, the side on which the steering handle 8 is disposed is the rear, and the opposite side, that is, the side on which the engine 6 is disposed is the front. Then, the right hand side of the worker standing toward the front side of the machine body at the rear part of the machine body is set to the right, and the left hand side is set to the left.

  The airframe 2 is provided with an engine 6 and a transmission case 7 as a transmission gear transmission at the front, a steering handle 8 is provided at the rear end of the frame 2c extending rearward thereof, and the left and right projecting on both sides of the transmission case 7 Left and right wheel transmission cases 1 each swinging up and down are provided in a rotating cylinder portion 9 a that rotates around an axle housing 9, and a main wheel 10 is mounted on an axle 11 provided at a rear end portion of the wheel transmission case 1. The left and right wheels 10 and the left and right front wheels 13 mounted on the front wheel shaft 12 provided at the front end of the body 2 are configured to travel. A fuel tank 6b is provided on the upper side of the engine 6, and an upper part of the fuel tank 6b is covered with a bonnet 6c. A seat 33 for an operator to put a seedling is provided above the bonnet 6c.

  The airframe 2 is provided with an airframe control mechanism that controls the height of the airframe by moving the left and right wheels 10 up and down. This airframe control mechanism is provided with a lift hydraulic cylinder 15 as a lift actuator from the hydraulic valve unit disposed on the mission case 7 to the rear, and the front end of the piston rod of the lift hydraulic cylinder 15 in the left-right direction of the fuselage. An interlocking arm 16 as a long arm is attached so as to be rotatable about a vertical axis. The piston rod slides along a guide shaft 2b supported by a mounting member 2a having a front portion supported by a hydraulic valve unit and a rear portion fixed to the body 2. The left and right end portions of the interlock arm 16 and the left and right housing arms 14 fixed to the rotating cylinder portion 9a are connected via a left and right rod 18 as a connecting body. A rolling cylinder 17 is incorporated in the left rod 18 on the left side, and the length can be changed by expanding and contracting the rolling cylinder 17.

  The elevating hydraulic cylinder 15 and the rolling cylinder 17 are operated by controlling the hydraulic oil by the elevating control valve and the rolling control valve in the hydraulic valve unit, respectively. When the lifting hydraulic cylinder 15 is expanded and contracted, the left and right wheels 10 move up and down in the same direction by the same amount, and the aircraft moves up and down. Further, when the rolling cylinder 17 is expanded and contracted, the left wheel 10 moves up and down relative to the airframe, and the airframe tilts to the left and right.

  Reference numeral 5 denotes a lift sensor for detecting the upper surface of the eaves. When the lift sensor 5 rotates up and down, the rotation is transmitted to the lift control valve by a connecting rod, and the lift hydraulic pressure is returned in a direction in which the angle of the lift sensor 5 is restored. The cylinder 15 is operated. As a result, the aircraft is controlled to move up and down so that the height from the upper surface of the cocoon to the aircraft remains constant, and the planting depth of the seedlings is always controlled regardless of the height change of the cocoon. The growth of the seedling after attachment is good.

  The rolling control valve in the hydraulic valve unit is switched in conjunction with detection of the left / right inclination of the upper surface of the heel A due to the fluctuation of the relative height of the left / right pressure suppressor 4 to be described later. 17 operates appropriately and controls the aircraft to return to the horizontal direction. Further, an operation panel 8a is provided at the base of the steering handle 8, and a planting lifting lever for manually operating the lifting control valve to manually move the machine up and down and stopping driving of the planting unit is provided on the operation panel 8a. A main clutch lever 8c for turning on and off the main clutch 8b is provided.

  That is, the wheel 10 on this side is connected by the rod 18 on the other side by the expansion and contraction of the rolling cylinder 17 on one side that connects between one housing arm 14 and the side end of the interlocking arm 16. The vehicle body 2 can be rolled up and down with respect to the wheel 10 on the other side, so that the horizontal inclination of the vehicle body 2 can be made horizontal or parallel to the soil surface, and the horizontal inclination posture of the aircraft body 2 can be controlled. can do. And such raising / lowering control is performed by the detection of the raising / lowering sensor 5 mentioned later, and rolling control detects the right-and-left inclination state with the pressure-reducing tool 4 which performs the pressure-reducing action from the left and right sides with respect to the seedling planted at the seedling planting position. It is what you do.

  Here, in the seedling planting machine in which the left and right wheel transmission cases 1 are provided so as to be able to swing up and down, the left and right seedlings are planted by the planting hopper 3 which is a left and right planting tool arranged in parallel in the horizontal direction of the machine body. In this configuration, rolling control is performed by swinging up and down the left and right pressure suppressor 4 that suppresses the position. The left and right sides of the seedlings planted in the field by raising and lowering the planting hopper 3 are suppressed by the pressure suppression tool 4 so that the seedling planting posture is stabilized. At this time, the support frame 4a of the left and right pressure suppressor 4 that suppresses the left and right seedling planting positions is configured to function as a sensor that detects the right and left inclination of the seedling planting soil surface. Each of the left and right pressure suppression tools 4 swings up and down independently for each right and left seedling planting position, detects the horizontal inclination of the planting soil surface by the difference in height of the swinging position, The one wheel transmission case 1 is swung up and down by detecting the inclination of the vehicle, and rolling control is performed so as to keep the body 2 parallel to the soil surface.

  Further, the left and right wheel suppression cases 4 are raised to the non-grounding height by swinging the left and right wheel transmission cases 1 to the non-planting position (the state in which the left and right wheels 10 are moved to the lowest position to raise the aircraft most). It is configured to work together. That is, when the aircraft is raised higher, the left and right wheel transmission case 1 is moved to the lowest position to raise the aircraft 2 to the non-planting posture, and the left and right pressure suppressor 4 is raised in conjunction with the non-acting posture position. It will be in a state that does not interfere with the running and turning of the aircraft, and the aircraft can be turned easily.

  The planting hopper 3 is arranged in a rear side width between the left and right wheels 10 as a two-row planting configuration arranged at a constant left and right position. In the rear part of the machine body 2, a seedling supply device 20 that connects and rotates and conveys a plurality of seedling cups 19 to the turntable configuration is provided, and the planting hopper 3 is placed on the lower side of the rear side of the machine body 2 on the rear side of the machine body. Two are arranged. By rotating the seedling cup 19 in the left-right direction, the seedling cup 19 is supplied to each seedling cup 19 while taking out the seedling from the seedling tray mounted in advance on the auxiliary seedling receiving base 21 at the top of the machine body 2. When each seedling cup 19 is rotated and positioned above the planting hopper 3, the shutter at the bottom of the cup is opened, and the stored seedling is dropped and supplied to the lower planting hopper 3. .

  This planting hopper 3 is provided so as to be capable of opening and closing to the left and right with respect to the seedling planting bracket 22, and has a hopper 23 for dropping and guiding the seedling supplied from the seedling cup 19 on the upper side, and a planting transmission mechanism The seedling planting transmission case 24 is configured to be driven up and down via parallel link arms 25 and 26. The seedling transmission case 24 is fixed to the frame portion of the airframe 2 and is configured to be transmitted from the mission case 7 portion. The crank arm shaft 27 rotated by a part of the transmission mechanism moves the upper link arm 25 up and down via the rod 28 to plant the planting hopper 3 along the locus P in the vertical direction.

  A lever 31 of the seedling planting bracket 22 and an arm 30 formed at the base end of the lower link arc 26 are connected by a wire 31, and the planting hopper 3 is moved up and down as the planting hopper 3 is moved up and down. Open and close. The rotation of the crank arm shaft 27 causes the planting hopper 3 to move up and down while drawing a substantially elliptical planting locus P, and the planting hopper 3 is closed during the process of descending from the position immediately before the top dead center. It opens at the lowered position and the ascending stroke remains open.

  The left and right planting hoppers 3 are configured to be displaced to the left and right outer sides from the position mounted on the seedling planting transmission case 24. In other words, the planting hopper 3 on the left side is configured to move up and down with respect to the seedling planting transmission case 24 via the parallel link arms 25 and 26, and the parallel link arms 25 and 26 are attached to the seedling planting transmission case 24. The base portion is bent toward the left outer side of the machine body, and a space portion is formed in front of the left planting hopper 3 attached to the distal ends of the parallel link arms 25 and 26. . By adjusting the left / right position of the left wheel 10 (tread adjustment), which will be described later, the left wheel 10 can be positioned in this space, and the left wheel 10 can be disposed in the immediate vicinity of the left seedling planting position.

  Similarly, the right planting hopper 3 is configured to move up and down through the parallel link arms 25 and 26 with respect to the seedling planting transmission case 24, and the parallel link arms 25 and 26 are connected to the seedling planting transmission case 24. It is configured to be bent from the mounted base portion toward the right outer side of the machine body, and has a structure in which a space portion is formed in front of the right planting hopper 3 mounted on the distal end portions of the parallel link arms 25 and 26. Yes. The right wheel 10 can be positioned in this space portion by adjusting the left and right positions (tread adjustment) of the right wheel 10 described later, and the right wheel 10 can be disposed in the immediate vicinity of the right seedling planting position. Therefore, seedlings can be planted at the position of the right and left ends of heel A.

(Drug application device)
In the medicine application device 51, a feeding mechanism 52 and a medicine tank 53 are arranged between the seedling supply device 20 and the steering handle 8, a guide hose 54 is connected from the feeding mechanism 52, and the relationship with the seedling position is also achieved by adjusting the spacing. The discharge port at the lower end is attached to the support frame 4a of the pressure suppressing device 4 so as to be fixed. The medicine tank 53 has the same diameter as the bottle diameter of the preliminary medicine 53a so that it can be used as an increase hopper. The feeding roll 52a of the feeding mechanism 52 connects the link interlocking with the vertical movement of the seedling planting bracket 22 of the planting hopper 3 so that the seeding interval is maintained even if the stock changes, and from the link having no interstitch adjustment. A feeding transmission mechanism 55 that rotates is provided. The feeding mechanism 52 includes an intermittent transmission member 52b such as a ratchet that is rotated by one rotation, and converts the continuous rotation or operation into an intermittent operation to spray the medicine.

  In this way, by arranging the medicine application device 51 between the seedling supply device 20 and the steering handle 8, it is easy to check the medicine tank 53 during turning operation of the steering handle 8 or during travel. By setting the rear balance, the handle pressing load can be reduced.

  Further, the center position of the roll of the drug application device 51 is a guide that slides so that the time lag until the drug falls due to the adjustment of the streak does not change, as shown in the rear view of the main part of the seedling transplanter in FIG. The central position between the maximum and minimum stripes of the hose 54 is used. By setting the basic position of the discharge port of the guide hose 54 closer to the center of the cocoon than the planting position of the seedling 54, it is possible to cope with a trapezoid cocoon where the left and right outer sides of the cocoon fall and the medicine easily flows due to rain. The fine adjustment of the medicine position is adjusted in the front-rear direction using the support frame 4a of the pressure suppressing device 4 as a rail.

(Slide support structure)
Next, the medicine application device 61 having a slide support structure will be described. In addition, below, description is abbreviate | omitted by attaching | subjecting the code | symbol of the same member.
As shown in FIGS. 3 and 4, a side view and a rear view of the main part of the medicine application device 61 are crossed extending in the vehicle width direction with the axis of the metering roll 62 a of the feeding mechanism 62 directed in the longitudinal direction of the machine body. The frame 63 is detachably supported in the outer direction of the machine body. A front side of the roll 62a is connected to a feeding transmission mechanism 64 via an intermittent transmission member 62b by a ratchet, and a feeding amount adjusting knob 62c is provided on the rear side. In order to cut the operation near the top dead center, the link of the feeding transmission mechanism 64 is configured with an elongated hole connecting portion 64a.

  Since the medicine application device 61 having the above configuration can be configured with the link of the feeding transmission mechanism 64 directed in the left-right direction, the degree of freedom in setting the arm ratio is increased, and the feed amount of the feeding roll 62a can be easily changed. The feed amount can be easily confirmed before boarding by the feed amount adjustment knob 62c located on the steering handle 8 side, and the adjustment operation is also easy. Further, when taking out the remaining amount of the tank 53 with an integral structure, it can be easily attached and detached using a wide space on the outside by a sliding operation in the vehicle width direction by the transverse frame 63. Even if they are close to each other and a sufficient operation space cannot be obtained, operability can be ensured.

(Loading wheel frame)
Next, a drug application device loaded with a pressure wheel assembly will be described. As shown in FIGS. 5 and 6, a side view and a rear view of the main part of the drug application device 71 are loaded with the main body on the support frame 4 a of the pressure suppression device 4 to which the support spring 4 b is connected. The feeding roll 72a of the feeding mechanism 72 is provided with a feeding arm 72b for swinging driving, and an operating arm 73 acting on the feeding arm 72b is attached to the planting hopper 3 to provide a feeding transmission mechanism interlocked with the planting hopper 3. The guide hose 74 is fixed to the support frame 4a.

  By configuring the drug application device 71 in this way, the striation can be adjusted while the drop position of the guide hose 74 is fixed, so that the time lag can be suppressed to the minimum with the shortest drop distance. The dead weight can be effectively used as a suppression load of the suppression device.

  Further, radial ribs 4c are formed on the inner side surface B of the pressure reducing wheel 4, and the discharge port of the guide hose 74 is fixed at a position where the inner side surface B is inclined outward and the medicine hits. The rib 4c temporarily holds the medicine received on the upper side until the pressure wheel 4 rotates by gradually increasing the central portion of the pressure wheel 4 and lowering the outer peripheral side gradually. It can be surely placed in the planting hole before crushing.

(Planting hopper loading)
Next, a chemical application device for planting hopper loading will be described. As shown in FIG. 7 (a), a side view of the essential part of the medicine application device 81 is provided with a medicine hopper 81a containing a rubber ball attached to the planting hopper 3, and drops the medicine near the planted stock. Thus, the guide hose 82 is attached, and a discharge mechanism 83 is provided at the lower end thereof. The enlarged view of the discharge mechanism 83 is shown in FIG. 5B, in which the valve body 85, in which a roller-structured sensing unit 84 for detecting a farm scene is integrated, is supported in a closed state by a return spring 85a. To do. The medicine hopper 81 a is formed with a connection port of the guide hose 82 close to the planting hopper 3 so as to suppress a change in the angle of the guide hose 82. The sensing unit 84 is provided with an adjuster 84a for adjusting the detection position in order to adjust the application amount by changing the opening / closing timing and opening angle of the valve body 85.

  In the medicine application device 81 having the above-described configuration, the planting hopper 3 is lowered and the sensing unit 84 is pushed up by the farm scene, whereby the valve body 85 is opened and the medicine is discharged from the guide hose 82. About the valve body 85, the chemical | medical agent can be hermetically held by sticking sponge rubber on the inner surface, and by opening the valve body 85 toward the planting hopper 3, The drug can be applied close to the stock market.

(Placement in the planting cover)
Next, the medicine application device arranged in the planting part cover will be described. As shown in FIG. 8, a side view of the main part of the medicine application device 91 is configured by attaching a medicine hopper 91a to the frame 2c inside a planting part cover 92 provided to cover the lower part of the seedling supply device 20. . A hose holder 94 is attached to the lower end of the guide hose 93 that communicates with the medicine hopper 91a, and a shutter 94a is provided that can be opened and closed, and the pressure-reducing wheel is supported via an attachment stay so as to drop the medicine in accordance with the height of the collar surface. A hose holder 94 is attached to the frame 4a. The hose holder 94 is provided with a position adjustment portion 94b in the front-rear direction, and the position is determined so that the drug is dropped to the stock holder by dropping the drug before covering the pressure wheel.

  The shutter 94a is configured integrally with an opening / closing lever 94c, is attached with a return spring and is pivotally supported by the hose holder 94, and a projecting portion 95 acting on the opening / closing lever 94c is projected from the planting hopper 3, thereby The shutter 94a is opened corresponding to the lowered position 3 and the medicine is discharged.

  The medicine hopper 91a can ensure the operability at the time of medicine injection by forming the introduction port 91b for injecting operation from the rear part of the machine body. Further, the opening / closing lever 94c is configured to be adjustable in length, thereby adjusting the opening degree of the shutter 94a and adjusting the medicine discharge amount. At the time of turning the body, the hose holder 94 including the shutter 94a is raised by raising the support frame 4a of the pressure-reducing wheel, so that it can be easily operated without being dragged on the surface.

Claims (2)

The planting device for planting seedlings by the planting hopper (3), the seedling supply device (20) for supplying seedlings to the planting hopper (3), and the seedling planting position by the planting hopper (3) are suppressed. A pressure reducing wheel (4) and a medicine application device (51) provided with a feeding mechanism (52) for feeding out the medicine are provided , a guide hose (54) is connected to the feeding mechanism (52) , and a pressure reducing wheel (4). A seedling transplanting machine in which a rib (4c) is formed on the inner side surface (B) of this, and the discharge port of the guide hose (74) is fixed at a position where the inner side surface (B) is inclined outward and the medicine hits . Two planting hoppers (3) and pressure-reducing wheels (3) are arranged side by side in the left-right direction of the machine, and the left and right planting hoppers (3) are used to position the left and right seedling planting positions. is configured to be put down, the discharge port of the lower end of the guide hose (54), attached to the support frame of the suppression device (4) (4a), while arranged in the horizontal direction of the machine body closer to the center than the planting position of the seedling, the support frame (4a) is configured to slide and adjust the interval , and the center position of the medicine application device (51) is set to the maximum and minimum intervals of the interval adjustment performed by sliding the discharge port at the lower end of the guide hose (54). The seedling transplanter according to claim 1, which is disposed at a central position between the seedlings .

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