JP2007282584A - Seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems in which left and right moving parts get heavy and smooth movement of each seedling-placing table to left and right is impaired, because each chemical hopper and discharging roll, etc., are integrally installed on each seedling placing table in conventional seedling transplanters. <P>SOLUTION: In the seedling transplanter, a seedling planting part 4 is installed on the rear side of a traveling vehicle body 2, and the seedling planting part 4 is equipped with a seedling-placing table 30 for placing mat-shaped seedlings, a seedling receiving plate 30a for receiving the ends of seedlings on the seedling-placing table 30, a seedling taking-out port 30b installed on the seedling-receiving plate 30a and a seedling planting apparatus 32 for collecting stocks of seedlings one by one from the seedling-taking out port 30b and planting the each stock to a field. In the seedling transplanter, an agent-spraying apparatus is constituted so as to feed the agent from an agent tank 14 installed on front side of the seedling planting part 4 and on traveling vehicle body side through a delivery part and a transfer hose 16 into an agent-spraying port 17 for spraying the agent onto the seedling-placing table 30, and the seedling-placing table 30 successively feeds seedlings to the seedling-taking out port 30b by transferring the seedling-placing table 30 to left and right and the agent-spraying port 17 is set to a definite position and supported so as not to move to left and right independently from the seedling placing table 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a seedling transplanter provided with a drug spraying device for spraying a drug on a seedling stage, and belongs to the technical field of agricultural machinery.

Conventionally, a medicine hopper that stores medicine for each seedling stage section and a feeding roll that rotates independently at the bottom of the hopper are provided above the horizontally moving seedling stage, respectively. When the mat seedling is replenished, the mat seedling is placed on the seedling mount, and the drive sprocket is rotated and linked by moving it downward while contacting the root of the mat seedling with the drive sprocket. Further, there is known a configuration in which the medicine is sprayed only on mat seedlings to be replenished by rotating the feeding roll (see, for example, Patent Document 1).
JP 2004-248622 A

  According to such a conventional technique, since each medicine hopper, feeding roll, etc. are integrally mounted on each seedling stage, there is a problem that the left and right moving parts become heavy and the smooth movement of the left and right of the seedling stage is impaired. is there. In addition, there is a problem that it is difficult to easily supply medicine from the riding operation position to the medicine hopper.

In order to solve the above problems, the present invention has taken the following technical means.
That is, according to the present invention, a seedling planting part (4) is provided on the rear side of the traveling vehicle body (2), and the seedling planting part (4) is a seedling table (30) on which mat-like seedlings are placed. ), A seedling receiving plate (30a) that receives the end of the seedling on the seedling platform, a seedling outlet (30b) provided on the seedling receiving plate, and a single seedling from the seedling outlet, A seedling planting device (32) to be planted in the medicine tank (14) provided on the traveling vehicle body side on the front side of the seedling planting section (4), through the feeding section (15) and the transfer hose (16), The seedling stage (30) is configured so as to supply the medicine to the medicine spraying port (17) for spraying the medicine, and the seedling stage (30) moves left and right to sequentially transfer seedlings to the seedling outlet (30b). The medicine spraying port (17) is set and supported at a fixed position so as not to move to the left and right separately from the seedling stage (30).

  In the seedling planting work, when the planting work is started, the seedling stage (30) is reciprocated to the left and right, one seedling is supplied to the seedling picking position one by one, It is cut out by the planting device (32) and planted in the field. From the medicine tank (14) provided on the vehicle body side, the medicine fed from the feeding section (15) is discharged from the medicine spraying port (17) at a fixed position via the transfer hose (16), and the seedling moves left and right. It is sprayed on mat seedlings on the stage.

  In short, according to the present invention, the medicine tank and the feeding part are installed on the traveling vehicle body side behind the planting part, and the medicine spraying port is set and supported at a fixed position regardless of the lateral movement of the seedling stage. Therefore, the left-right movement part can be reduced in weight, and the left-right movement of the seedling stage can be performed smoothly. In addition, since the medicine tank is installed on the traveling vehicle body side behind the planting part, the medicine supply operation from the operating part to the medicine tank can be easily performed, and the front-rear weight balance of the machine body can be well maintained.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 show a riding type rice transplanter 1 as an example of a seedling transplanter equipped with a medicine spraying device. This riding type rice transplanter 1 is connected to a rear side of a traveling vehicle body 2 via a lifting link mechanism 3. The four-row seedling planting part 4 is equipped so as to be movable up and down, and the main body portions of the fertilizer application device 5 and the chemical spraying device 6 are provided on the rear upper side of the traveling vehicle body 2.

In the traveling vehicle body 2, a pair of left and right front wheels 10 and 10 and rear wheels 11 and 11 are installed as traveling wheels, and a mission case 12 is disposed in the front part of the airframe.
Rotational power from the engine E as a prime mover is transmitted to the mission in the mission case 12 via the belt transmission mechanism 20. The rotational power transmitted to the mission in the case is shifted by the transmission in the case 12, and then separated into the traveling power and the external extraction power. The traveling power drives the front wheels 10 and 10 and the rear wheels 11 and 11. In addition, the external extraction power is transmitted to the seedling planting unit 4, the fertilizer application device 5, and the chemical spraying device 6.

  The upper part of the engine E is covered with a vehicle body cover 9, and a driver's seat 7 is installed above it. A front cover 21 and an operation box 22 having various operation mechanisms are installed in front of the driver's seat 7, and a steering handle 8 for steering the left and right front wheels 10 and 10 is provided above the front cover 21 and the operation box 22. Horizontal floor steps 23 are formed on both lower ends of the body cover 9 and the front cover 21. The rear portion of the floor step 23 is a rear step 24 that also serves as a fender for the rear wheel 11. In addition, on the left and right sides of the front part of the traveling vehicle body 2, spare seedling placing stands 25 on which supplementary seedlings are placed are installed.

  The seedling planting part 4 is configured to move up and down with respect to the machine body via a hydraulic lifting cylinder 13 and puts the mat seedlings back and forth to the left and right to move the seedlings to the seedling receiving plate 30a in each row. 30b,... And all the seedlings in a horizontal row are supplied to the seedling outlet 30b,... By seedling feed belt 30c,. 4 seedling planting devices 32 for cutting and planting into the soil, a pair of left and right drawing markers 33, 33, a center float 34 and a side float 35 for leveling the seedling planting surface, It is set as the structure provided with 35 grade | etc.,.

  The fertilizer application device 5 is provided in front of the seedling planting unit 4 and on both the left and right sides of the rear side of the driver's seat 7. The fertilizer in the fertilizer hopper 40 for storing granular fertilizer is fed by a fertilizer feed unit 41. A fixed amount is fed out from the lower outlet, and the fed fertilizer is provided on the left and right sides of the floats 34, 35, 35 through the fertilizer transfer hoses 43, ... by the air supplied from the blower 47. The fertilizer is transferred to the fertilizer guide and dropped into a fertilizer groove formed near the side of the seedling planting strip by a grooved body provided on the front side of the fertilizer guide. The blower 47 driven from the engine E via the drive belt 46 is adapted to transfer the pressure wind generated by the hot air from the engine through the suction port from the air chamber 44 that is long in the left-right direction via the bent pipe 45. -It blows in in 44, ... and the fertilizer in fertilizer transfer hose 43, ... is forcibly transferred to the fertilizer discharge port by the side of a seedling planting part. In addition, as shown in FIG. 20, it may replace with the said blower 47, and the structure which ventilates to the air chamber 44 via the ventilation cylinder 64 using the cooling fan 63 of the engine E may be taken. According to this, a dedicated blower can be abolished and cost down.

  The medicine spraying device 6 is located between the fertilizers 5 and 5 disposed on the left and right sides of the rear side of the driver's seat 7 in front of the seedling planting section 4, and is installed on the back of the driver's seat 7 to store the medicine. The medicine in 14 is fed out by a predetermined amount by the feeding section 15, and the fed medicine is transferred to the medicine spraying port 17 facing the seedling mounting table 30 of the seedling planting section via the medicine transfer hose 16. The medicine is sprayed on the mat seedling that moves left and right from the spraying port portion 17. The medicine spraying port 17 is set and supported at a fixed position so that it does not move left and right separately from the left and right movement of the seedling stage 30, and is configured to communicate and hold from the medicine transfer hose 16 via the U-shaped bending hose 16a. It is said. The medicine transfer hose 16 communicates with the air chamber 44 of the fertilizer application device 5 via the bent hose 18, and hot air is blown from the blower 47 through the air chamber 44 and the bent hose 18 in the medicine transfer hose 16. I'm trying to blow it.

  The embodiment shown in FIG. 3 shows an example of controlling the chemical spraying, and when the seedling stage that moves left and right comes to the left and right center position, a position sensor 26 that detects the center position of this seedling stage is provided. Based on the detection result of the sensor 26, the medicine delivery motor 28 provided on the output side of the control section 27 is driven, and the medicine is delivered from the medicine delivery section 15 by driving the delivery motor 28, and the medicine transfer hose 16 is moved. Then, it is configured to control to spray from the medicine spraying port 17 to the seedling on the seedling stage mat.

Next, another embodiment of the fertilizer application will be described.
As shown in FIGS. 4 to 6, the fertilizer hoppers 40, 40 are arranged on the left and right sides of each two strips, and a predetermined space is formed between the hoppers 40, 40. The lid plates 40a, 40a of the left and right hoppers are opened laterally toward the center side of the machine body (FIG. 5). Moreover, as shown in FIGS. 7-9, when the space | interval of the left and right hoppers is not so wide, the cover plate of each hopper is divided and opened so as to be divided into left and right (FIG. 8). The position where the cover plate opens is restricted by wires, metal fittings, etc. so that it reaches the center of the fuselage.

  By opening the lid plate laterally toward the center of the aircraft and filling the space between the left and right hoppers, fertilizer can be continuously supplied to the left and right hoppers without stopping the fertilizer from coming out of the fertilizer bags. it can. Moreover, when the cover plate of each hopper is divided and opened to the left and right, when the cover plate is opened, the highest point of the cover plate is lowered and the fertilizer is easily entered. The fertilizer spilled on the cover plate is rotated in the direction of closing the cover plate, so that the fertilizer flows down on the cover plate and flows into the hopper.

  In the embodiment shown in FIGS. 10 and 11, receiving plates 40b and 40b having a length up to the center of the machine body are attached to the hopper 40 and the cover plate 40a so as to fill the space between the left and right hoppers. By restricting and holding in an inclined state so that the center side of the airframe becomes higher when the 40b is spread, the fertilizer spilled on the receiving plate 40b naturally flows down toward the hopper. The receiving plate 40b is provided with a partition plate 40c to prevent the fertilizer from scattering.

  In the embodiment shown in FIGS. 12 to 14, in a cylindrical air chamber 44 made of a rubber material, a cylindrical reinforcing plate 51 and a reinforcing rod are provided in the vicinity of the communication port 50 to the feeding funnel 42 of the air chamber. In this configuration, the materials 52 and 52 are provided. Conventionally, when the communication port portion is inserted into the feeding funnel, the air chamber is deformed due to the rubber material, and there is a problem that it takes time to insert and attach. However, in this example, the reinforcement plate 51 and the communication port portion are inserted as described above. Deformation can be prevented by the reinforcing bar members 52 provided on both sides in the direction, and it can be pushed in from the opposite side of the communication port, so that it can be easily attached even if it is removed by cleaning or the like.

  As shown in FIG. 15, a fertilization transmission shaft 53 that is long in the left-right direction for driving a total of four fertilizers 5, 5... The fertilizer transmission shaft 53 is configured to intermittently rotate the feeding roll of the fertilizer feeding portion 41 through an appropriate interlocking mechanism by reciprocating rotation of the fertilizer transmission shaft 53. In this example, each feeding funnel 42, 42... Is pivoted through the fertilizer transmission shaft 53, and as shown in FIG. 16, the feeding funnel 53 is applied to the upper fertilizer feeding portion 41. It is configured to swing open and close as a pivot point. According to this, not only can the number of fixtures for the feeding portion of the feeding funnel be reduced, but also the workability for attachment / detachment is improved.

  In addition, as shown in FIG. 17, the rod connecting the fertilizer transmission shaft 53 and the planting clutch case 54 for driving the fertilizer is driven by the two rods 55 and 56 in the vertical and horizontal directions. Configure interlocking. The vertical rod 55 in the vertical direction is connected to the drive arm 57 of the fertilizer transmission shaft 53, and the horizontal rod 56 in the horizontal direction is connected to the drive crank arm 58 of the planting clutch case 54. A fulcrum movement adjusting member 62 with a lever 61 that is rotatable around a support shaft 60 slidably mounted on a frame 59 is provided in the middle portion of the horizontal rod 56. When the fulcrum movement adjusting member 62 is moved and adjusted to the left side by the lever 61 as shown in FIG. 19A, the swing stroke of the horizontal rod 56 is reduced and the feeding amount is reduced. Further, as shown in FIG. 19B, when the movement is adjusted to the right side, the swing stroke of the horizontal rod 56 is increased and the feeding amount is increased.

  By dividing the rod into two parts and configuring the rod in two stages, it is possible to prevent the rod from becoming too oblique. By moving and adjusting the fulcrum position of the horizontal rod to the left and right, the swing stroke of the horizontal rod can be changed and the feed amount of the fertilizer feed portion can be arbitrarily adjusted.

  1 and 2, a front grip 65 and a side marker 66 are integrally configured on a support arm 68 that is rotatable and fixed around a connecting shaft 67 in the vertical direction with respect to the vehicle body 2. At the time of seedling planting work, the posture is changed to a protruding posture in the lateral direction so that it can be used as a side marker, and when entering or leaving the field, the posture is protruded forward in the longitudinal direction so that it can be used as a front grip. The configuration is changed.

  As shown in FIG. 21, in a riding rice transplanter configured not to provide a spare seedling platform on both the left and right sides of the front part of the vehicle body, as means for placing the seedling box on the rear step 24 of the rear part of the vehicle body, The rear side is placed in a state of being lifted upward by the seedling box guard 70. The seedling box placed here can be used as an emergency seedling, so that workability can be improved.

Side view of riding rice transplanter with chemical spraying device Top view of Ueda transplanter Control block circuit diagram Top view of fertilizer hopper Same as above Side view Top view of fertilizer hopper Same as above Side view Top view of fertilizer hopper Same as above Air chamber top view Side view Same as above Rear view of essential parts of fertilizer application equipment Side view Rear view of essential parts of fertilizer application equipment Same part back view Rear view of the main part Side view of essential parts of fertilizer application equipment Side view of rice transplanter Perspective view of the main part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Riding type rice transplanter 2 Traveling vehicle body 4 Seedling planting part 6 Drug spraying device 14 Drug tank 15 Drug delivery part 16 Drug transfer hose 17 Drug spraying port 30 Seedling stand 30a Seed receiving plate 30b Seedling outlet 32 Seedling planting device

Claims (1)

  A seedling planting section (4) is provided on the rear side of the traveling vehicle body (2). The seedling planting section (4) includes a seedling stage (30) on which mat-like seedlings are placed, and an end of the seedling on the seedling stage. A seedling receiving plate (30a) for receiving the portion, a seedling outlet (30b) provided on the seedling receiving plate, and a seedling planting device (32) for taking seedlings one by one from the seedling outlet and planting them on the field And spraying the medicine on the seedling mount (30) from the medicine tank (14) provided on the traveling vehicle body side in front of the seedling planting part (4) through the feeding part (15) and the transfer hose (16) The medicine spraying port (17) is configured to supply a medicine, the seedling mounting base (30) moves left and right to sequentially supply seedlings to the seedling outlet (30b), and the drug spraying port (17) is a seedling. A seedling transplanting machine, which is set and supported at a fixed position so as not to move left and right separately from the mounting table (30).

Images