JP2018183079A - Pest control working vehicle - Google Patents

Abstract

An object of the present invention is to provide a control work vehicle that effectively removes weeds growing in the ridges at the same time as pest control work. SOLUTION: A left side boom 11b and a right side boom 11c are deployed laterally with respect to a central boom 11a provided at a front portion of a traveling chassis 2 that travels in a ridge groove with left and right front wheels 3, 3 and left and right rear wheels 4, 4. In the control work vehicle in which the spraying nozzles 14,... Are sprayed with chemicals and the work wheels 27 are provided at the rear of the rear wheels 4, 4, weeds vegetated in the gutter groove are drawn at the front of the left and right front wheels 3, 3. The control work vehicle is characterized in that the raising device 50 is provided. [Selection] Figure 1

Description

  The present invention relates to a control work vehicle that removes weeds that grow in a ridge during pest control work of a crop planted in a field.

  There is a mobile agricultural machine described in Patent Document 1 as a control work vehicle that performs middle plowing weeding simultaneously with pest control work.

  In this mobile farm machine, weeds that grow in the ridges are plowed by a rotary device provided at the rear of the machine at the same time as the control work of spraying agricultural chemicals on the crop with a spreading boom that is deployed to the left and right of the machine.

Japanese Patent No. 4360200

  The mobile agricultural machine is used in a field where crops have grown to some extent, but weeds are growing together with the crops, so the purpose is to remove weeds simultaneously with pest control of crops.

  However, short weeds can be removed while plowing with a rotary device. However, weeds that have grown long in the ridges are difficult to weed because they fall on the crop side and become entangled.

  An object of the present invention is to provide a control work vehicle that effectively removes the weeds that grow in the ridges at the same time as the pest control work in view of such problems of the conventional control work vehicle.

  The above conventional problem is solved by the following technical means.

  According to the first aspect of the present invention, the left side boom 11b and the right side boom 11c are placed laterally with respect to the central boom 11a provided at the front portion of the traveling chassis 2 that travels in the ridge groove with the left and right front wheels 3, 3 and the left and right rear wheels 4, 4. In the control work vehicle in which the working machine (27) is provided at the rear part of the rear wheels 4 and 4, the vegetation is vegetated at the front part of the left and right front wheels 3 and 3. The control work vehicle is provided with a raising device 50 for raising the weeds.

  The invention according to claim 2 is characterized in that the pulling force source 64 for driving the pulling device 50 is separated from the engine for driving the left and right front wheels 3 and 3 and the left and right rear wheels 4 and 4. Control vehicle.

  The invention according to claim 3 provides the control work vehicle according to claim 2, wherein the pulling force source 64 can be shifted and stopped.

  According to the first aspect of the present invention, during the control operation of spreading the left side boom 11b and the right side boom 11c laterally with respect to the central boom 11a to run the traveling chassis 2 and spraying agricultural chemicals from the spray nozzle 14, The pulling device 50 causes long weeds that grow in the trenches and pulls them away from the crops that grow in the trenches. Since weeding, weeds can be effectively removed without damaging crops.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, since the pulling activation force source 64 is different from the engine of the traveling chassis 2, the engine transmitted from the raising / lowering mechanism of the pulling device 50 is used. This eliminates the need for the power transmission mechanism and simplifies the configuration.

  According to the invention of claim 3, in addition to the effect of claim 2, under the optimum herbicidal conditions that cause the crop depending on the amount of weeds growing in the furrow, stop the device 50 or increase / decrease the speed. Control work is possible.

The whole side view of a control work vehicle. The whole top view of a control work vehicle. The rear view of a control work vehicle. The side view of a culture rotary. The perspective view of a raising apparatus. The whole top view of a control work vehicle.

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. In the description of the embodiment, the left and right directions in the forward direction of the aircraft are referred to as left and right, respectively, the forward direction is referred to as forward, and the backward direction is referred to as rear. However, the configuration of the present invention is not limited.

  1 to 3 show an overall view of a control work vehicle 1 according to the present invention. Hereinafter, the configuration of the control work vehicle 1 will be described.

  Front and rear wheels 3, 3 and rear wheels 4, 4 having the same diameter are provided on the front, rear, left and right of the traveling chassis 2 of the control work vehicle 1, and a control spray device A is disposed at the rear of the traveling chassis 2. An engine (not shown) is mounted above the left and right front wheels 3 and 3, and the engine periphery is covered with a bonnet 6. A seat 7 is provided at the front and rear intermediate portion of the traveling chassis 2, and a steering handle 8 is provided so as to be positioned in front of the seat 7. When the steering handle 8 is steered left and right, the left and right front wheels 3, 3 and rear In this configuration, the wheels 4 and 4 are steered simultaneously. Further, around the seat 7 at the rear of the traveling chassis 2, a chemical tank 9 for storing a medicine is detachably provided so as to surround the left and right sides and the rear side thereof.

  Further, traveling power is transmitted from the engine output shaft to the front wheels 3 and 3 and the rear wheels 4 and 4 via a traveling transmission device (not shown), and the chemical spray is transmitted from the engine output shaft to the working machine transmission device. The working power is transmitted to the pump for driving and the PTO shaft for driving the rear working machine.

  The lower water supply port of the chemical liquid tank 9 is connected to a pump, and the chemical liquid discharged from the pump is sent to the pressure adjusting device via the pressure pipe, and the pressure is adjusted by the pressure adjusting device. It is branched and sent to a plurality of high pressure hoses, and further sent to the central boom 11a, the left side boom 11b, the right side boom 11c and the rear boom 11d via the intermediate hose 38, and the chemical solution is sprayed from the spray nozzles 14,. It is the composition which is done. The central boom 11a is removed and attached to the rear part of the vehicle body as will be described later.

  In addition, a boom support member 15 is attached to the front of the traveling chassis 2 by upper links 18a, 18a and lower links 18b, 18b so as to be movable up and down. . Further, the left and right intermediate portions of the central boom 11a are supported by the boom support member 15 so as to be able to adjust the rolling around the axial center in the front-rear direction, and the horizontal cylinder 20 performs the rolling adjustment.

  Further, at the both ends of the frame portion of the central boom 11a attached to the boom supporting member 15, the base end portions of the left side boom 11b and the right side boom 11c are pivotally supported around the lateral pins, and the left and right lifting cylinders 16 are supported. 16, the left side boom 11 b and the right side boom 11 c are configured to rotate up and down. Further, the frame bases of the left side boom 11b and the right side boom 11c are pivotally supported around a vertical pin, and the left side boom 11b and the right side boom 11c can be opened and closed in an inward / outward direction by the open / close cylinders 17 and 17. doing.

  Thus, the left side boom 11b and the right side boom 11c are pivoted up and down, and opened and closed in the inside and outside directions, so that the left side boom 11b and the right side boom 11c are opened and closed in the inner and outer directions. Can be.

  The left side boom 11 b and the right side boom 11 c move in the longitudinal direction to the left and right side frames 39, the fixed boom 40 fixed in a fixed state, for example, inside the left and right side frames 39, and the outside of the left and right side frames 39. The movable boom 41 is mounted so as to be adjustable. The movable boom 41 can be expanded and contracted by the telescopic motors 21 and 21 so that the movable boom 41 can be changed between a short spraying state and a long spraying state.

  The tank shape of the chemical liquid tank 9 is such that the left and right portions 9a and 9b located on the left and right sides and the rear side of the seat 7 in plan view and the rear portion connecting the rear side portions of the left and right portions 9a and 9b. 9c and having a predetermined width and height. The rear portion 9c is formed with a recessed portion 9d cut in the vertical direction at the rear center portion thereof, provided with left and right replenishing ports 22 and 22 on the left and right side portions of the chemical liquid tank 9, and the left and right replenishing ports 22 and 22 being left and right open / close lids. 23 and 23 are configured to open and close.

  Further, the front end of the rear elevating link 25 refracted in a U-shape when viewed from the side is pin-connected to the rear part of the traveling chassis 2, and the rear end part of the rear elevating cylinder (not shown) is pinned to the rear part of the traveling chassis 2. And the front end of the rear elevating cylinder is pin-connected to the middle part of the rear elevating link 25, and the multi-rotary 27 connected to the rear part of the rear elevating link 25 is raised and lowered. Note that a PTO shaft is provided at the rear portion of the traveling chassis 2, and power is transmitted to the multi-rotary 27 via a coaxially refracting transmission shaft.

  Further, as shown in FIG. 4, the multi-rotary 27 is, for example, a triple tiller working machine that performs weeding of leafy vegetables crops and soiling work, and is configured as follows.

  A transmission box 28 to which power is transmitted from the PTO shaft is provided at an intermediate portion in the left-right direction, and a cultivation support frame 29 is provided at the rear portion of the transmission box 28 along the left-right direction. A rotary 30 is attached, and left and right side rotary parts 31 and 32 are attached to the left and right side parts of the culturing support frame 29 so as to be movable in the left and right direction.

  The center rotary 30 and the left and right side rotary parts 31 and 32 include a rotary transmission case 33, a cultivating device 34 provided at the lower part of the rotary transmission case 33, a cultivating frame 35 attached to a midway part of the rotary transmission case 33, and a cultivating claw 34, and the like.

  Further, the left and right work transmission shafts are extended from the transmission box 28 so as to be positioned in the culturing support frame 29, and the left and right work transmission shafts, the center rotary 30 and the rotary transmission cases 33, 33 of the left and right side rotary members 31, 32 are extended. The input gear is spline-fitted, power is transmitted from the left and right work transmission shaft to the rotary transmission case 33, and the tilling claws 34,... Of the center rotary 30 and the left and right side rotary parts 31, 32 are driven. Yes.

  Thus, while carrying out the chemical spraying operation by the control spray device A with the chemical liquid tank 9 attached, a combined work of middle tillage weeding work by the cultivator 27 is possible, and the work efficiency can be improved. Further, since the recessed portion 9d cut in the vertical direction is provided in the rear center portion of the chemical liquid tank 9, the rear lifting link 25 and the cultivator 27 can be moved up into the recessed portion 9d and lifted. The amount can be secured to prevent crop damage during turning. Further, the operator has a good rear view through the concave portion 9d of the chemical tank 9, and the work confirmation of the multi-rotary 27 becomes easy.

  Next, the rear boom 11d will be described with reference to FIG.

  A vertical support cylinder 42 is pivotally supported by left and right pins 43, 43 at the rear portion of the tilling frame 35 in the center rotary 30, and a vertical stay 44 is inserted into and supported by the support cylinder 42. A mounting stay 45 in the front-rear direction that is parallel to the ground is fixed to the upper end of the bolt with a bolt and a nut. A mounting portion of the rear boom 11d is inserted into the rear end portion of the mounting stay 45 from the rear side, and is mounted so as to be adjustable in the front-rear direction with bolts and nuts. The rear boom 11d is configured to have substantially the same width as that of the cultivator 27 so that the medicine can be sprayed over the entire width after the tillage of the cultivator 27 from the rear boom 11d. A rear hitch 46 of the multi-rotary 27 is provided at the center of the left and right sides, the rear hitch 46 and the mounting stay 45 are connected by a rod 47, and the rear hitch 46 is configured to be adjustable up and down by a vertical adjustment device 48.

  Thus, it is possible to perform a combined work of spraying the herbicide from the rear boom 11d after the middle tillage work by the cultivator 27, and to increase the herbicidal effect by penetrating the herbicide deeply into the soil. Further, the rear boom 11d can be adjusted in the vertical direction and the front-rear direction with respect to the cultivator 27, and the rear boom 11d can be adjusted according to the growth of the crops to enhance the effect of spraying the medicine.

  Next, with reference to FIG. 5 and the like, a pulling device 50 that is provided at the front portion of the left and right front wheels 3 and 3 and raises the weeds that are vegetated in the gutter groove, and a cutting blade 58 that is attached to the pulling device 50. Etc. will be described. FIG. 5 is a perspective view of the pulling device 50 and the cutting blade 58 disposed on the front side of the left front wheel 3. The raising device 50 and the cutting blade 58 etc. arranged on the front side of the right front wheel 3 have the same structure as the raising device 50 and the cutting blade 58 shown in FIG. .

  Left and right elevating arms 60 and 61 are attached to the boom support member 15 or the central boom 11a. Elevating support arms 62 are attached to the left and right elevating arms 60 and 61, and left and right raising frames 51 are used to The raising device 50 is attached (see FIG. 2). The left and right pulling devices 50 in FIG. 2 are configured to have a wide width and are attached with a motor with a large output, and are used when the grass is thick.

  In this way, the left and right pulling devices 50 are attached to the boom support member 15 or the central boom 11a, so that the lifting cylinders 19 and 19 together with the central boom 11a, the left side boom 11b, and the right side boom 11c. It is the structure which goes up and down.

  As shown in FIG. 5, the pull-up frame 51 is a plate-like frame that supports the upper pulley 53 and the lower pulley 52, and has a conveyance lug 55 that is bent upward in a side view on the rising side. The pulling belt 56 is wound around the upper pulley 53 and the lower pulley 52. The lower pulley 52 is raised by a tension spring 63 provided on the frame 51 to tension the belt 56.

  A side cover 57 is attached to the side surface of the raising frame 51 so as to project the conveying lug 55 to the outside during the ascending process and to draw in the inside near the upper end and surround the rear side of the belt 56. A blade case 59 is attached to the lower portion of the side cover 57 so that the cutting blade 58 can be raised and pulled out along the movement path of the belt 56. The left and right side covers 57 are connected to the upper connecting shaft 69 and the scraper connecting member 72 below the upper pulley 53. It is connected with. The scraper connecting member 72 prevents weeds from being wound around the upper pulley 53. When the cutting blade 58 is worn, the cutting edge is broken and removed, and the knob bolt 71 is loosened so that a new cutting blade can be pulled out and renewed. The cutting blade 58 may be stored along the side cover 57 when not used.

  The upper pulley 53 is driven by a hydraulic motor or an electric drive motor 64 that is driven and hydraulically attached to the frame 51. The pulley 53 is raised according to the amount of long weeds that grow in the ridges, and the pulling speed of the belt 56 is increased. Shift control is performed in synchronization with the traveling speed or by increasing or decreasing the speed. When there is no long weed, the drive of the transmission motor 64 may be stopped. Basically, the speed-up motor 64 is increased when the travel speed is increased, and the speed-change motor 64 is decelerated when the travel speed is decreased. However, for example, when there is a lot of grass, the speed-up motor 64 is increased by reducing the speed. There is also a case to let you. In such a case, the transmission motor 64 is decelerated by a manual switch (not shown).

  Further, the lower pulley 52 may be driven by the transmission motor 64. In the embodiment of FIG. 1, the transmission motor 64 is configured to drive the lower pulley 52, so that the transmission motor 64 is attached to the lower portion of the pulling device 50. For this reason, the transmission motor 64 is configured to be attached to the rear side of the pulling device 50. Thereby, since the grass or the like does not directly hit the transmission motor 64, the transmission motor 64 can be protected.

  At the upper part of the raising frame 51, the mounting bracket 70 is attached to the raising support arm 62 by a pin insertion type so that the mounting angle can be changed to the left and right sides, and when the raising frame 51 is tilted to the side, the weed width is increased. In the lower part of the frame 51, the gauge ring 65 is pivotally supported by a gauge ring arm 66 which is elastically supported by a compression spring 73, and the gauge ring 65 is grounded to flexibly follow the unevenness of the groove. To support.

  Between the gauge ring 65 and the pulling device 50, a lower weed fence 68 and an upper weed fence 67 are provided to prevent weeding of the gauge wheel 65. Moreover, you may comprise with the weed cover which spreads toward back like is used for the combine.

  The gauge ring 65 is softened by removing air (filling amount of air of about 50%) so as to roll the gutter groove so as not to break the gutter, but the gauge ring 65 may be a solid one that does not use air. In this case, the gauge ring is made of a relatively soft material such as soft rubber. Further, when the raising frame 51 is detached from the raising support arm 62, the gauge wheel 65 becomes a transport wheel. As shown in FIG. 2, the left and right pulling devices 50, 50 are arranged in a “C” shape. Therefore, when the gauge wheel 65 is pulled and attached to the device 50, it is the same as the front and rear wheels 3, 4. It is necessary to install in the direction of rotation.

  In addition, you may comprise the raising frame 51 so that raising / lowering arm 60,61 single-piece | unit may be raised / lowered by another hydraulic cylinder different from the said hydraulic cylinders 19 and 19. FIG.

  The configuration shown in FIG. 6 will be described. Only the central boom 11a and the left and right pulling devices 50, 50 are moved up and down by the lifting cylinders 19, 19. The left side boom 11b and the right side boom 11c are configured to move up and down by left and right lifting cylinders 16 and 16 and to turn by left and right turning motors 17a and 17a.

  The pulling support arms 62 that support the left and right pulling devices 50, 50 are configured to be shared by the central boom 11a. That is, left and right pulling devices 50 and 50 are provided at both left and right ends of the central boom 11a, and the left and right pulling devices 50 and 50 are rotatably attached to the central boom 11a. Since the left and right pulling devices 50, 50 can be turned left and right by the left and right cylinders 74, 74, the working position of the conveying lug 55 can be changed depending on the grass lying state, and the pulling performance is improved. In this case, the gauge wheel 65 is not attached, but the gauge wheel may be configured to be rotatable in the left-right direction by a motor or the like.

  The transmission motor 64 is configured to drive the upper pulley 53. As a result, the transmission motor 64 is arranged at a position higher than the height of the grass, so there is no problem even if the transmission motor 64 is pulled up and attached to the front side of the device 50. The maintainability of the transmission motor 64 is improved by raising the transmission motor 64 and attaching it to the front side of the device 50.

2 traveling chassis 3 front wheel 4 rear wheel 11a central boom 11b left side boom 11c right side boom 14 spray nozzle 27 working machine (cultural rotary)
50 Pulling device 64 Pull starting force source (transmission motor)

Claims (3)

The left side boom (11b) and the right side boom with respect to the central boom (11a) provided at the front part of the traveling chassis (2) that travels in the ridge groove with the left and right front wheels (3, 3) and the left and right rear wheels (4, 4) In a control work vehicle in which (11c) is developed laterally and the medicine is sprayed from the spray nozzle (14,...), And a work machine (27) is provided at the rear of the rear wheels (4, 4),
A control work vehicle characterized in that a raising device (50) for raising weeds vegetated in a gutter groove is provided in front of the left and right front wheels (3, 3).   The pulling activation force source (64) for driving the pulling device (50) is separate from the engine for driving the left and right front wheels (3, 3) and the left and right rear wheels (4, 4). The control work vehicle according to 1. The control work vehicle according to claim 2, wherein the pulling force source (64) can be shifted and stopped.

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