JP2018166426A - Chemical spraying device of rice transplanter - Google Patents

Abstract

To solve the problems in which: conventionally when planting seedlings in two or more rows, a chemical spraying device laterally moving regardless of planting rows where seedlings in a seedling tank is decreased earlier sprays chemicals wastefully; and to solve the issue, it should be controlled that chemicals are not sprayed for the planting rows where seedlings is a prescribed quantity or less so that chemicals are not sprayed wastefully.SOLUTION: A chemical spraying device (16) sprays chemicals over seedlings in a seedling tank (4a) while laterally moving above the seedling tank. The chemical spraying device is constituted to be capable of controlling, when a seedling decrease sensor (21) detects that the seedlings laid on the seedling tank (4a) is a prescribed quantity or less, to stop chemical spraying according to the detection result.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a chemical spraying device for a rice transplanter.

  Conventionally, in a rice transplanter equipped with a seedling planting part for planting seedlings in a tank while reciprocating horizontally, a drug spraying device that sprays drugs on seedlings in the seedling tank while moving horizontally above the seedling tank Is known (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2006-158504

  At the time of seedling planting work in which a plurality of seedlings are planted, there is a problem that the medicine spraying device that moves laterally against the planting strips in which the seedlings in the seedling tank have been rapidly reduced spreads the medicines wastefully.

  An object of the present invention is to solve such problems and to control the streak that has been lost to a predetermined amount or less of the seedling so as not to spray the drug, thereby eliminating the waste of the drug.

  In order to solve the above problems, the present invention has taken the following technical means.

  That is, the present invention as set forth in claim 1 is characterized in that in the medicine spraying device (16) of a rice transplanter that sprays the medicine on the seedlings in the seedling placement tank while laterally moving above the seedling placement tank (4a), the seedling placement is carried out. When the seedling reduction sensor (21) detects that the seedlings placed in the tank (4a) have a predetermined amount or less, the seedling reduction sensor (21) is configured to be controllable so as to interrupt the medicine spraying according to the detection result. And

  The seedling loading tank (4a) is planted by the planting device (4c) with the seedlings of each strip loaded while reciprocating laterally moving, and the drug spraying device (16) is moved laterally along the guide rail (15). Drugs are sprayed on the seedlings.

  And during this planting work, if even one seedling in each seedling loading tank is reduced below a predetermined amount, it will be detected and the medicine spraying device (16) will not spray the medicine by the reduced amount. The medicine feeding action is interrupted, and if it is exceeded, the feeding action is resumed and the spraying action is continued.

  When the seedling reduction sensor (21) detects that the seedling on the end side of the seedling placement tank (4a) has decreased to a predetermined amount or less in the first aspect of the present invention, The medicine spraying device (16) is configured to be controllable so as to continue the spraying by making a U-turn from the front position.

  According to the above configuration, when the seedling on the end side is reduced, the spraying device makes a U-turn from its front position, so that useless spraying is eliminated, and the moving power of the spraying device is reduced, resulting in an energy saving effect.

  The present invention according to claim 3 is the medicine delivery of the medicine spraying device (16) in relation to the turning on and off of the implantation claw clutch lever (22) of the seedling implantation device (4c) according to claim 1 or claim 2. When the mechanism (18) is configured to be controllable and the planting claw clutch is disengaged, the medicine feeding mechanism (18) is controlled not to operate on the seedling of the strip in which the planting claw clutch is disengaged. It is characterized by.

  According to the said structure, when performing the seedling planting work of the heel side in the last path | route, the number of cutting of a planting claw clutch is decided by how many strips are planted with respect to the remaining planting surfaces. For example, when the two-row planting claw clutch lever (22) is operated to the cutting side, the seedlings for the two-row planting move without being applied and sprayed to avoid duplication.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, when the seedling amount adjustment lever (23) that adjusts the seedling amount of the seedling transplanting device (4c) is adjusted to the increase side, the amount of medicine sprayed is increased. It is characterized in that it is configured to be controlled in the direction of movement.

  According to the above configuration, as the amount of seedlings is increased, the seedlings move downward faster, so the amount of drug per unit area decreases. Therefore, by increasing the amount of sprayed medicine, the amount of sprayed medicine per seedling area can be made constant.

  According to a fifth aspect of the present invention, in the first aspect, the second aspect, the third aspect, or the fourth aspect of the invention, during the end-to-side control of the seedling tank (4a), the medicine spraying device (16) The power supply is turned off.

  At the time of controlling the close-up of the seedling tank (4a), that is, when it is desired to bring the seedling tank (4) close to the end before the work, the seedling is not placed in the tank, so there is no need to spray the medicine. By cutting off the power supply to the medicine spraying device (16), it is possible to prevent the medicine from being sprayed when it is unnecessary.

  In short, according to the present invention as set forth in claim 1, since the medicine is not sprayed on the strip where the seedling has been reduced to a predetermined amount or less, waste of the medicine can be saved.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, when the seedling on the end side of the seedling tank is reduced, the spraying device makes a U-turn from its front position, so that useless spraying is performed. It can be eliminated, and the moving power of the spraying device can also be reduced, so that an energy saving effect can be exhibited.

  According to the third aspect of the present invention, in addition to the effect of the first or second aspect, if even one of the planting strips is turned off, the seedling planting of the strip is performed. Since no drug spraying is performed, waste of drug can be saved.

  According to the fourth aspect of the present invention, in addition to the effect of the third aspect, the amount of the medicine per unit area decreases because the seedling moves downward earlier as the amount of seedling is increased. Therefore, by increasing the amount of sprayed medicine, the amount of sprayed medicine per seedling area can be made constant.

  According to the fifth aspect of the present invention, in addition to the effect of the first aspect, the second aspect, the third aspect, or the fourth aspect, the power supply to the medicine spraying device is performed at the time of the close-up control of the seedling tank. By cutting off, it is possible to prevent the spraying of unnecessary chemicals.

Side view of riding rice transplanter Side view of the main part Rear view of main parts with seedling tank and chemical spraying device Rear view showing drug spraying action Perspective view of the main part with the planting claw clutch lever Side view of the riding type rice transplanter (A), (b) Action diagram showing the automatic deployment of the front plate guard Side view and partial enlarged bottom view showing the installation state of leveling float Top view showing how the leveling float is installed Perspective view of autonomous straight rice transplanter Side view of main parts of rice transplanter

  An embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a riding-type rice transplanter (passenger-type transplanting machine) 1. A seedling planting part 4 is mounted on a rear side of a traveling vehicle body 2 via a lifting link mechanism 3 so as to be movable up and down. A fertilizer application device 5 is provided on the rear upper side.

  The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 6 and 6 and rear wheels 7 and 7 as drive wheels, and a transmission case 8 is disposed in the front part of the fuselage. Left and right front wheel final cases 9 are provided laterally, and left and right front wheels 6 and 6 are pivotally supported on left and right front wheel axles that can change the steering direction of the left and right front wheel final cases 9. Further, left and right rear wheels 7 and 7 are pivotally supported on the rear wheel axle of the rear wheel transmission case 10.

  The engine E is mounted on the upper part of the main frame, and the rotational power of the engine is transmitted into the mission case 8 via the transmission and the transmission. The rotational power transmitted in the mission case 8 is shifted by the transmission in the case 8 and then separated into traveling power and external power to be extracted.

  A part of the traveling power is transmitted into the left and right front wheel final cases 9 and 9 to drive the front wheels 6 and 6, and the rest is transmitted to the left and right rear wheel gear cases, and from the rear wheel transmission case 10 to the left and right rear. The wheels 7 and 7 are driven.

  The external take-out power taken out from the right side surface of the mission case 8 is transmitted to the seedling planting part 4 by the planting transmission shaft 11.

  A steering handle 12 is provided on the front side of the vehicle body to steer the aircraft from side to side, and a driver seat 13 is provided on the rear side.

  The seedling planting unit 4 includes a seedling placement tank 4a for placing seedlings, a seedling vertical feed belt 4b, a planting device 4c for planting seedlings, a leveling float 4d for leveling the field, and the like, which is moved up and down by a hydraulic lifting cylinder. It has become.

  The seedling loading tank 4a reciprocates left and right so that the mat-like seedlings placed on the seedling loading tank are planted on the planting surface of the field by the planting device 4b while being sequentially fed downward through the seedling vertical feed belt 4b. It has become. In the embodiment, the seedling tank 4a is loaded with eight mat seedlings to plant eight seedlings. A front plate guard 25 having a seedling outlet is provided on the lower end side of the seedling tank.

  Above the seedling placement tank 4a, there is provided a medicine spraying device 16 for spraying medicine onto the seedlings in the seedling placement tank 4a while reciprocating in the horizontal direction along the guide rail 15 via the support arm 14. Yes. The guide rail 15 is supported via stays from both left and right ends of the tank 4a.

  As shown in FIG. 3, the guide rail 15 has an extremely wide width in the case of eight-row planting, and therefore, like the seedling tank, a part of the end side is virtually drawn inward via a link or the like. It can be folded and stored.

  The medicine spraying device 16 reciprocates in association with the seedling vertical feed amount of the seedling vertical feed belt 4b of the seedling loading tank 4a. The medicine spraying device 16 sprays the medicine in the medicine storage tank 17 via the medicine delivery mechanism 18 with a rotary valve, and the on-off drive of the moving motor and the delivery mechanism for reciprocating the spraying device left and right. A feeding motor or the like is provided.

  As shown in FIG. 3, when the seedling reduction sensor 21 detects that the seedlings placed on the seedling placement tank 4 have a predetermined amount or less, the seedling reduction sensor 21 detects the amount of the reduced strips (one strip for one seedling mat). It is configured to be controllable by a control device (microcomputer) so as to turn off the delivery mechanism 18 of the drug spraying device and to interrupt the drug spraying.

  Further, as shown in FIG. 4, when the seedlings on the end side of the seedling placement tank 4 (the seedlings for the four ends in the embodiment) are reduced to a predetermined amount or less and the seedling reduction sensor 21 detects, It is also possible to control so that the medicine spraying device 16 makes a U-turn from its front position and continues spraying.

  A planting claw clutch lever 22 (see FIG. 5) for turning on and off the planting claw clutch (ク ラ ッ チ clutch) for every two plants of the seedling planting device 4c is installed on the back side of the seedling placement tank 4a. The medicine feeding mechanism 18 of the medicine spraying device 16 is configured to be controllable in connection with the entry side and turn side operations of 22. Then, when the planting claw clutch lever 22 is operated to the cutting side, the medicine feeding mechanism 18 is turned off (the feeding motor is turned off) for the seedlings for the two-row planting based on the detection result of the sensor, and the medicine is not sprayed. It is set as the structure controlled as follows.

  Needless to say, when the implantation claw clutch is fully cut, the power supply of the medicine spraying device is turned off. In short, in the configuration of the chemical spraying device, the chemical spraying is performed by detecting the lateral feed cam of the seedling mounting tank, but if the planting claw clutch is fully cut off, the seedling will not be sent down This is because if the medicine is sprayed in this state, the medicine is sprayed on the same place.

  As shown in FIG. 2, the seedling amount adjustment lever 23 for adjusting the seedling amount of the planting device is installed on the front side of the seedling loading tank 4a. The seedling amount adjustment lever 23 is provided with, for example, a potentiometer. Then, the position is detected, and the detection result is sent to the microcomputer of the spraying device to control the spraying amount. That is, when the seedling removal amount is adjusted to the larger side, the spraying port is widened (or control for changing the lateral movement speed of the spraying device is also possible) so that the amount of medicine spraying can be increased. According to this, since the seedling moves downward faster as the amount of seedlings is increased, the amount of drug per unit area decreases. Therefore, by increasing the amount of sprayed medicine, the amount of sprayed medicine per seedling area can be made constant.

  During the close-up control of the seedling loading tank 4a, the power supply of the medicine spraying device is turned off. In other words, if you want to move the seedling tank to the end before the work (because the seedling is taken from one end of the mat mat supplied at the beginning of planting), the seedling is not supplied and placed in the tank. There is no need for spraying, and it is possible to prevent the spraying of the medicine when it is unnecessary by cutting off the power supply to the medicine spraying device.

  In addition, the power supply of the medicine spraying device can be performed through a control device output and a relay. When the power supply output from the control device is ON and the power switch of the medicine spraying device is ON, the spraying device is turned on. Even if the power switch of the spraying device is ON, the power supply of the medicine spraying device is not turned on if the power supply output from the control device is OFF.

  In addition, when the power supply of the medicine spraying device is ON, if the ON / OFF switch for the close-up control of the seedling tank is operated, the ON / OFF switch of the close-up control is turned off by sounding the buzzer three times at a short volume. It is better to inform the worker that this has been done.

  Next, another embodiment will be described.

  At the front plate guard 25 having a seedling outlet that slides the seedling tank in the lateral direction, the end side 25a that protrudes to the left and right from the lateral width of the seedling tank is automatically folded and stored by the development motor 26 and the like. (See (a) of FIG. 6) and a deployment posture (see (b) of FIG. 6) that opens outward so as to return to the seedling placement posture. In addition, various configurations are conceivable, but the power from the planting transmission shaft automatically deploys via the gear transmission mechanism, or the front plate guard end is automatically deployed in conjunction with the planting button via the wire. A configuration may be taken.

  In the example of FIG. 7, the float 4 d is connected to a planting frame 27 made of aluminum by a link 28 made of a piano wire so as to be rotatable through a stay. The planting frame 27 is connected so as to be wrapped by the holder 29 and the plate 30. According to this, strength and durability can be obtained with a simple configuration, and the movement of the float can be made smooth.

  The embodiment shown in FIG. 8 is provided with a transparent resin plate 33 that closes between the GPS antenna mounting frames 32 and 32 installed in the rice transplanter in the autonomous rectilinear rice transplanter. The resin plate 33 is configured to be openable and closable with the hinge 34 at the upper end as a rotation fulcrum. In the cabin of such a form, it functions as a sun visor in fine weather and as a rain visor and tablet rain shield in rainy weather. A tablet holder 36 for loading the tablet 35 is installed near the steering handle 12 on the front side of the driver's seat 13 and can be changed at an arbitrary angle so that the tablet can be easily seen.

  In the embodiment shown in FIG. 9, a heel overarm 38 and a deadman clutch 39 attached to the heel overarm 38 are provided on the front side of the vehicle body. The clutch on / off operation is performed only by the deadman clutch 39 in the state of getting off the airframe (at the time of walking work). According to this, it is possible to simplify the lever operation at the time of overloading and loading the truck. In addition, when the lock release button 41 provided in the head part of the HST lever 40 is pushed and the HST lever 40 is put into the walking work position 42a of the guide groove 42, the clutch can be turned on and off by operating the deadman clutch.

DESCRIPTION OF SYMBOLS 2 Traveling body 4 Seedling planting part 4a Seedling tank 4c Implanting device 15 Guide rail 16 Drug spraying device 18 Drug delivery mechanism 21 Seedling reduction sensor 22 Implantation claw clutch lever 23 Seedling amount adjustment lever

Claims (5)

  The seedling placed in the seedling placement tank (4a) in the chemical spraying device (16) of the rice transplanter that sprays the medicine on the seedlings in the seedling placement tank while laterally moving above the seedling placement tank (4a) When the seedling reduction sensor (21) detects a seedling reduction of a predetermined amount or less, it is configured to be controllable so as to interrupt the medicine spraying according to the detection result.   When the seedling reduction sensor (21) detects that the seedling on the end side of the seedling placement tank (4a) has decreased to a predetermined amount or less, the medicine spraying device (16) makes a U-turn from the near position. The medicine spraying device for a rice transplanter according to claim 1, wherein the device is configured to be controlled so as to continue spraying.   The medicine feeding mechanism (18) of the medicine spraying device (16) is configured to be controllable in relation to turning on and off of the implantation claw clutch lever (22) of the seedling implantation device (4c), and the implantation claw clutch is turned off. Then, it controls so that the said chemical | medical agent delivery mechanism (18) may not be operated with respect to the seedling of the row | line | column to which the said implantation nail | claw clutch was cut | disconnected, The chemical spraying of the rice transplanter of Claim 1 or Claim 2 characterized by the above-mentioned. apparatus.   When the seedling removal amount adjusting lever (23) for adjusting the seedling removal amount of the seedling transplanting device (4c) is adjusted to increase, the amount of the medicine sprayed is controlled to increase. The medicine spraying device of the rice transplanter according to claim 3.   5. The power supply of the medicine spraying device (16) is turned off during the end-to-side control of the seedling loading tank (4 a). 5. Rice sprayer chemical spraying device.

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