JP2016052291A - Locally fertilizing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locally fertilizing machine allowing a user to easily view working state such as boring and fertilizer distribution.SOLUTION: The locally fertilizing machine includes: a body for generating drive force; a traveling member provided on the body and rotating so as to make the body movable; a boring member provided on the body and vertically moving to bore a field; and a fertilizer feed member provided on the body, having a feed port opened toward the field, and capable of feeding the fertilizer, via the feed port, to a hole formed by the boring member. The boring member and the feed port of the fertilizer feed member are disposed on a rear side of the traveling member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a local fertilizer machine.

  For example, as described in Patent Document 1, as an invention capable of reducing the environmental load caused by fertilizer without cutting or damaging the roots of the cultivated tree, the ground traveling means that rotates and the perforations provided in front of the ground traveling means There was a local fertilizer machine with a drill and fertilizer input means.

Japanese Patent Application Laid-Open No. 2012-187012

  However, in the invention described in Patent Document 1, since the drilling drill and the fertilizer feeding means are provided in front of the ground traveling means, the operator hides the drilling by the drilling drill and the fertilizer feeding by the fertilizer feeding means in the ground traveling means. It was difficult to see.

  Therefore, the problem to be solved by the present invention is to provide a local fertilizer applicator in which work conditions such as drilling and fertilizer charging are easily visible.

  As means for solving the above-mentioned problems, a local fertilizer applicator according to the present invention is provided on a main body that generates a driving force, a traveling member that is provided on the main body and is movable by rotating, and is provided on the main body. A perforating member that can pierce the field by moving up and down, and a supply port that is provided in the main body and opens toward the field, and fertilizer can be supplied into the hole formed by the piercing member via the supply port A fertilizer supply member, and the supply port of the perforation member and the fertilizer supply member is disposed on the rear side of the traveling member.

  In the local fertilizer applicator according to the present invention, it is preferable that the traveling member and the perforating member are arranged so that at least a part of the region through which the traveling member passes and the region perforated by the perforating member overlap.

  In the local fertilizer applicator according to the present invention, the traveling member and the perforating member are preferably provided in pairs on both sides in the left-right direction of the main body.

  In the local fertilizer applicator according to the present invention, the fertilizer supply member has a fertilizer storage section that stores the fertilizer, and the supply port is located at the tip of the cylindrical protrusion that extends from the fertilizer storage section in the vicinity of the field. It is preferable that the traveling member, the perforating member, and the supply port are arranged in this order from the front of the vehicle body, and the fertilizer passes through the protrusion and the supply port, falls from the supply port, and is supplied into the hole.

  In the local fertilizer applicator according to the present invention, the main body has a hydraulic pump that is driven in conjunction with an engine provided in the main body and generates a driving force, and the traveling member, the perforating member, and the fertilizer supply member are hydraulic pumps. It is preferable to drive by the generated hydraulic pressure.

  According to the present invention, since the perforating member and the fertilizer supply member are arranged on the rear side of the traveling member, the local fertilizer machine is easy for the operator to visually recognize the formation of holes by the perforating member and the supply of fertilizer by the fertilizer supply member. Can be provided.

FIG. 1 is a schematic view showing an embodiment of a local fertilizer applicator according to the present invention. FIG. 1 (A) is a schematic view when a local fertilizer is viewed from the side. FIG. 1 (B) is a schematic view of a local fertilizer machine. FIG. 2 is a schematic view when only the piercing member is viewed from the rear. FIG. 3 is a schematic view when only the fertilizer supply member is viewed from the rear. 3A is a schematic view when the fertilizer supply member is viewed from the left side, FIG. 3B is a schematic view when the fertilizer supply member is viewed from the rear, and FIG. 3C is a fertilizer supply. It is the schematic at the time of overlooking a member. FIG. 4 is a schematic diagram showing the positional relationship between the traveling member and the hole formed by the perforating member. FIG. 5 is a schematic diagram showing a usage pattern of a local fertilizer application in a tea plantation. FIG. 6 is a block diagram showing a connection form of each member included in the hydraulic system in the local fertilizer applicator. FIG. 7 is a flowchart showing a control mode of each member via a hydraulic system in the local fertilizer applicator. FIG. 8 is a flowchart showing a control mode of each member via a hydraulic system in the local fertilizer applicator. FIG. 9 is a schematic diagram showing the positional relationship between the traveling member and the hole formed by the punching member in another embodiment of the local fertilizer applicator according to the present invention.

One embodiment of a local fertilizer applicator according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing an embodiment of a local fertilizer applicator according to the present invention. FIG. 1A is a schematic diagram when the local fertilizer machine 1 is viewed from the side. FIG. 1B is a schematic view when the local fertilizer machine 1 is looked down on.
In the following, the horizontal direction of the main body and the width direction of the main body are the same direction.

  As shown in FIG. 1, the local fertilizer applicator 1 includes a main body 2, a traveling wheel 3, a drill 4, and a fertilizer supply member 5. In FIG. 1B, a part of the drill 4 is omitted.

The main body 2 has a hydraulic pump 6 that generates a driving force. In FIGS. 1A and 1B, the outline of the main body 2 is indicated by a two-dot chain line.
The hydraulic pump 6 is a member that is driven in conjunction with the engine 7 via an endless pulley or the like and generates hydraulic pressure as a driving force. As the engine 7, an existing engine that uses gasoline, bioethanol, light oil, heavy oil or the like as fuel can be used, and torque generated by fuel combustion can be transmitted to the hydraulic pump 6. A battery 8 is provided in front of the hydraulic pump 6, and the battery 8 can be used as a power source for assisting in starting the engine 7 and driving other members.
In addition, the main body 2 is an example of the main body in the local fertilizer machine which concerns on this invention.

The traveling wheel 3 is a member provided in the main body 2, and is a tire that allows the main body 2 to move by rotating by receiving the driving force of the hydraulic pump 6. Specifically, the traveling wheel 3 is connected to a traveling hydraulic motor 9. The traveling hydraulic motor 9 is a member that is connected to the hydraulic pump 6 and generates torque. That is, by controlling the hydraulic pressure of the hydraulic pump 6, the driving of the traveling hydraulic motor 9 can be controlled, and as a result, the rotation of the traveling wheel 3 can be controlled.
As shown in FIG. 1B, a pair of rear traveling wheels 3 are provided on both sides of the main body 2 in the left-right direction. In addition, one auxiliary wheel 10 is provided in front of the main body 2 at a substantially central portion in the width direction of the main body 2. The auxiliary wheel 10 is one of the traveling members, is connected to the traveling hydraulic motor 9 and is rotatably provided, and the local fertilizer machine 1 advances through the field G by rotating the traveling wheel 3. , A member that rotates by friction with the field G.

  An electromagnetic valve 11 is disposed above the auxiliary wheel 10 in the main body 2. The electromagnetic valve 11 is a valve body that switches between a hydraulic operation state and a cutoff state from the hydraulic pump 6 to each member of the traveling wheel 3, the drill 4, and the fertilizer supply member 5. Switching of the solenoid valve 11 may be set to be performed automatically, or may be manually performed on the operation panel 13 disposed between the handle 12 extending rearward from the main body 2.

The handle 12 is a member that an operator holds to steer the local fertilizer applicator 1. Although the fertilization work can be automatically performed depending on the setting, it is preferable to always hold the handle 12 for safety. In addition, it is good for an operator to operate the throttle lever, the brake lever, and the like appropriately provided on the handle 12 manually by the operator to move the local fertilizer machine 1 in and out of the field G and travel to the fertilizer area.
In the operation panel 13, an appropriate push button or the like can be provided so that start and stop of fertilization work can be input.

The drill 4 is a member that is provided in the main body 2 and can pierce the field G by moving up and down in response to the driving force of the hydraulic pump 6. Here, the drill 4 will be described in detail with reference to FIG.
2 is a schematic view when only the drill 4 is viewed from the rear.

  As shown in FIG. 2, the drill 4 includes a drill lifting cylinder 14, a drill hydraulic motor 15, and a drilling portion 16.

  The drill elevating cylinder 14 is a member that elevates and lowers the drill hydraulic motor 15 and the drilling portion 16 in the vertical direction of the main body 2 by expanding and contracting using hydraulic pressure as a drive source. The perforated part 16 is a rod-shaped member having a conical shape at the lower end, and can be rotated around its axis. The piercing portion 16 is rotated by a drill hydraulic motor 15 attached to the upper end portion thereof. The drill hydraulic motor 15 is a member that is connected to the hydraulic pump 6 shown in FIG. 1 and generates torque.

A pair of the drill hydraulic motor 15 and the drilling portion 16 are provided on both sides of the main body 2 in the left-right direction. The right and left drill hydraulic motors 15 and the drilling portions 16 are respectively attached to a pair of guide portions 17 disposed on the left and right sides. The guide portion 17 is a rail-like member that guides the track when the drill hydraulic motor 15 and the drilling portion 16 move up and down.
In the embodiment shown in FIG. 2, the drill hydraulic motor 15, the drilling portion 16, and the guide portion 17 are arranged such that the lower side of each member is inclined toward the outer side in the width direction of the main body 2. Thereby, the hole H can be formed in the agricultural field G with the space | interval larger than the width | variety in the left-right direction of the exterior body of the main body 2. FIG.
In addition, what is necessary is just to determine the formation direction of the hole H in this embodiment according to the extending direction of the root of the cultivation tree in the field G which performs fertilization, for example, the root of the cultivation tree overhangs to the area | region which the local fertilizer machine 1 passes. In such a case, the hole H may be formed in the vertical direction.

Subsequently, as shown in FIG. 1, the fertilizer supply member 5 is provided in the main body 2, has a supply port 51 that opens at the distal end portion of the cylindrical projecting portion 18 that extends toward the farm field G, and the drill 4. This is a member capable of supplying fertilizer through the supply port 51 into the hole H formed by the above. Here, the fertilizer supply member 5 will be described in detail with reference to FIG.
FIG. 3 is a schematic view when only the fertilizer supply member 5 is viewed from the rear. 3A is a schematic view when the fertilizer supply member 5 is viewed from the left side, and FIG. 3B is a schematic view when the fertilizer supply member 5 is viewed from the rear. 3 (C) is a schematic view when the fertilizer supply member 5 is looked down on. In FIG. 3, the fertilizer hopper 19 is shown by a broken line, and the fertilizer discharge port 20 is shown only in FIG.

  As shown in FIG. 3, the fertilizer supply member 5 includes a protrusion 18, a fertilizer hopper 19, a fertilizer discharge port 20, a supply shutter 21, a shutter frame 22, and a supply amount adjustment unit 23.

A pair of protrusions 18 are provided on both sides of the main body 2 in the left-right direction, and are cylindrical members whose lower ends extend close to the field G as shown in FIG. The opening at the lower tip of the protrusion 18 is formed as the supply port 51. The supply port 51 is disposed at substantially the same position as the position where the drilling portion 16 of the drill 4 contacts the field G in the left-right direction of the main body 2. The fertilizer passes through the protrusion 18, falls from the lower end opening of the protrusion 18, and is supplied into the hole H formed in the field G. In the present embodiment, the fertilizer is supplied by free fall without providing a member for positively feeding the fertilizer in the protruding portion 18, but it is directed toward the hole H if necessary. Appropriate members for jetting, radiating or injecting may be provided.
Further, the fertilizer hopper 19 is a cylindrical body whose upper and lower sides are opened and reduced in diameter toward the lower side, and is a member that can accommodate the fertilizer therein by being attached above the shutter frame 22.
In addition, the fertilizer supply member 5 is an example of the fertilizer supply member in the local fertilizer machine which concerns on this invention, the protrusion part 18 is an example of the protrusion part in this invention, and the fertilizer hopper 19 is an example of the fertilizer accommodating part in this invention. is there.

  The fertilizer discharge port 20 is a fertilizer remaining in the fertilizer hopper 19 when the fertilizer remains in the fertilizer hopper 19 after completion of the fertilization work and when the fertilizer to be fertilized during the fertilization work is replaced with another type. It is a cylindrical body for discharging. The fertilizer discharge port 20 is normally maintained in a closed state using an appropriate shutter or the like by hydraulic driving or manually, and is opened for discharging the fertilizer as necessary.

The shutter frame 22 is a frame-like member formed by arranging four cylindrical measuring portions 24 formed along the vertical direction along the horizontal direction. Supply shutters 21 are slidably provided at the upper and lower ends of the weighing unit 24 of the shutter frame 22, respectively. That is, since the measuring unit 24 in which the supply shutter 21 is closed has a certain internal volume, an appropriate amount of fertilizer can be measured by filling the measuring unit 24 with fertilizer. The supply shutter 21 slides with the hydraulic pressure generated by the hydraulic pump 6 as a driving force.
In the present embodiment, the right measuring unit 24 and the second measuring unit 24 from the left end are used, and the upper supply shutter 21 in the remaining measuring unit 24 is closed, but the protruding unit 18 In the case where the number is increased to four, the fertilizer can be measured using all the measuring units 24.

Further, an opening is formed in a part on the rear side of the measuring unit 24, and the supply amount adjusting unit 23 is inserted into the measuring unit 24 from the opening. The supply amount adjusting unit 23 is a member that can be inserted into and removed from the measuring unit 24 by rotating a knob provided at the rear, and that increases or decreases the volume of the gap in the measuring unit 24. That is, the fertilizer amount measured by the measuring unit 24 can be adjusted by the supply amount adjusting unit 23.
Four upper openings of the measuring unit 24 are arranged in parallel above the shutter frame 22. The upper opening opens to the inside of the fertilizer hopper 19 attached above the shutter frame 22. In addition, four lower openings of the measuring unit 24 are provided below the shutter frame 22. Two of the lower openings are connected to the upper end of the protrusion 18.

Supply of the fertilizer by the fertilizer supply member 5 can be performed as follows, for example.
In the supply shutter 21, before the fertilizer is supplied, the lower shutter is closed and the upper shutter is opened. As a result, the fertilizer falls from the fertilizer hopper 19 and fills in the weighing unit 24 whose internal volume is adjusted by the supply amount adjusting unit 23.
Next, the upper shutter is closed while the lower shutter of the supply shutter 21 is kept closed. As a result, the fertilizer is weighed by the internal volume of the measuring unit 24.
Furthermore, to supply the weighed fertilizer, the lower shutter is opened while the upper shutter of the supply shutter 21 is kept closed. Thereby, while the fertilizer in the measurement part 24 weighed out enters into the protrusion part 18 extended below with its own weight, supply of the fertilizer from the fertilizer hopper 19 more than the intended quantity can be prevented. .

As shown in FIG. 1, the local fertilizer machine 1 described above has a pair of left and right perforations 16 in the drill 4 and a pair of left and right protrusions 18 and a supply port 51 in the fertilizer supply member 5. Each is arranged on the rear side.
Furthermore, the positional relationship between the traveling wheel 3 and the drill 4 will be described in detail with reference to FIG. FIG. 4 is a schematic diagram showing the positional relationship between the traveling wheel 3 and the hole H formed by the drill 4.

  As shown in FIG. 4, in the local fertilizer machine 1, the traveling wheel 3 and the drill 4 include an area T through which the traveling wheel 3 passes and an area drilled by the drill 4, that is, an area in which the hole H is formed. It arrange | positions so that at least one part may overlap. This positional relationship is determined by, for example, the size of the local fertilizer machine 1 that is allowed in the region where the fertilization work is performed, the part that requires fertilization in the field G, and the like.

  Here, an example of the usage pattern of the local fertilizer applicator 1 is shown in FIG. FIG. 5 is a schematic diagram showing a usage pattern of the local fertilizer applicator 1 in a tea plantation.

  As shown in FIG. 5, when using the local fertilizer machine 1 in a tea plantation, the local fertilizer machine 1 travels between the ridges formed between the cultivated tree A1 and the adjacent cultivated tree A2, and the hole H is cultivated tree A1. And A2 are formed in the vicinity.

  As a suitable area | region which forms the hole H in the agricultural field G, the rain drop part X which is an area | region drooping with respect to the agricultural field G from the edge part which protruded most in the left-right direction (passage side) in cultivated trees A1 and A2, for example is mentioned. be able to. By applying fertilizer at a position slightly away from the trunks of the cultivated trees A1 and A2, such as the raindrop part X, the roots of the cultivated trees A1 and A2 grow and project to the vicinity of the raindrop part X in the soil. . Therefore, if the hole H is formed in the raindrop part X, a fertilizer can be stably supplied over the long term to the vicinity of the grown root, and the growth of cultivated trees A1 and A2 can be promoted.

  In addition, since the area | region where the local fertilizer machine 1 drive | works in the agricultural field G is fundamentally soil, it is unstable to drive | work compared with a paved road. Therefore, if the distance between the right traveling wheel 3 and the left traveling wheel 3 in the local fertilizer machine 1 is too narrow, the local fertilizer machine 1 basically has a lower traveling stability than the paved road. Running stability is significantly reduced. As described above, if the region where the hole H is formed is set in the rain drop part X, it is necessary that the local fertilizer applicator 1 ensure good running stability. Therefore, it is necessary for the left and right traveling wheels 3 to be disposed at a certain interval.

  Conventionally, in order to achieve both a suitable region for forming the hole H and traveling stability, the region through which the traveling wheel 3 passes and the region in which the hole H is formed overlap. Further, the drill 4 is disposed in front of the traveling wheel 3. Thereby, in the conventional local fertilizer machine, even if the operator tried to visually recognize the drilling by the punching member and the supply of the fertilizer by the fertilizer supply member from the start to the completion of the work, it was difficult to visually recognize .

  In addition, in the conventional local fertilizer, it is possible to prevent the region where the hole is formed from overlapping the region through which the traveling wheel passes by providing the drill so as to project outward, but the entire local fertilizer is Since it will enlarge, it is not preferable.

  From the viewpoint of securing the above-described traveling stability, it is not preferable to narrow the distance between the left and right traveling wheels too much. Furthermore, since the traveling wheel is a member having a large size in the entire apparatus, if the traveling wheel is to be rearranged on the inner side in the width direction of the main body, the members disposed between the traveling wheels and the members around the garden are largely disposed. A change was necessary.

  In the past, the vertical movement of the drill and the supply of fertilizer were driven by a mechanical mechanism. As a result, since a plurality of appropriate gears, cams, connecting members and the like were used in combination, the number of parts is large, high dimensional accuracy is required at the time of manufacture and assembly of each member, the structure is complicated, The device was upsized. In addition, since it is difficult to change the arrangement of the members of the mechanical mechanism, it has been difficult to reduce the size and weight of the device.

  Therefore, in the past, in order to ensure good running stability of the local fertilizer machine and fertilize so that the roots of the cultivated tree protrude to the fertilizer area side such as the furrow, the area through which the traveling wheels pass and the hole It was difficult to avoid the traveling wheels and the drills being arranged so that they overlap with the region forming the. However, the difficulty of changing the layout of the conventional mechanical device and the necessity of visual recognition of the fertilization work situation were contradictory issues.

As described above, in the local fertilizer machine 1 with respect to the above-described conventional problems, the drill 4 and the supply port 51 of the fertilizer supply member 5 are disposed on the rear side of the traveling wheel 3. Thereby, the hole H can be formed in the rain drop part X shown in FIG. 5, and the traveling wheel 3 is arranged so as to have the maximum distance between the left and right traveling wheels 3 allowed between the cultivated trees A1 and A2. Can be arranged. At this time, even if the region T through which the traveling wheel 3 passes and the region in which the hole H is formed by the drill 4 are arranged so as to overlap, the drill 4 and the supply port 51 are located behind the traveling wheel 3. There is no problem because it is arranged.
That is, in the local fertilizer applicator, since the fertilization work status such as formation of holes H and supply of fertilizer is not hidden by the traveling wheels 3 and visibility is good, the worker visually recognizes the work status from the start to the completion of the fertilization work. be able to. Moreover, the local fertilizer machine 1 is optimal so that the best running stability resulting from the optimum distance between the left and right running wheels 3 and the roots of the cultivated trees A1 and A2 protrude to the fertilizer area such as the furrows. It is possible to achieve both fertilization to the correct position.

  Since the local fertilizer applicator 1 shown in FIGS. 1 to 5 is a hydraulic mechanism, the arrangement of members can be easily changed by simply extending an oil pipe for transmitting hydraulic pressure, and the number of parts can be reduced. Therefore, the apparatus can be simplified. Further, drive control of each member, for example, traveling by the traveling wheel 3, drilling by the drill 4, and supply of fertilizer by the fertilizer supply member 5 can be easily realized only by controlling the hydraulic pressure by the electromagnetic valve 11.

  Further, in the conventional fertilizer, the drilling member and the fertilizer supply member are often provided at a site away from the operator, whereas the local fertilizer machine 1 in which the arrangement of the members can be easily changed includes the drill 4 and A fertilizer supply member 5 is provided close to the operator. Thereby, since the drilling process by the local fertilizer machine 1 and the supply process of the fertilizer are easy to visually recognize from the worker, the worker can easily discriminate the progress status of the fertilization work, the occurrence status of defects, and the like. Therefore, it is preferable because an operation according to the situation can be further performed as compared with the conventional case.

Here, an example is shown in FIGS. 6-8 about the connection form and control form of each member in the local fertilizer machine 1 which employ | adopted the hydraulic type.
FIG. 6 is a block diagram showing a connection form of each member included in the hydraulic system in the local fertilizer applicator 1. 7 and 8 are flowcharts showing the control mode of each member via the hydraulic system in the local fertilizer applicator 1.

As shown in FIG. 6, the controller 25 is electrically connected to each member.
The operation panel 13 inputs signals related to the start and stop of the fertilization work to the controller 25. The traveling wheel 3 is connected to a rotational speed detector 26 that detects the rotational speed of the traveling wheel 3. The rotation speed detector 26 inputs the detected rotation speed of the traveling wheel 3 to the controller 25. The controller 25 inputs a valve opening signal for applying hydraulic pressure to each member or a valve closing signal for blocking the hydraulic pressure to the electromagnetic valve 11.
For example, the controller 25 can rotationally drive the traveling wheel 3 by inputting a signal related to driving of the traveling hydraulic motor 9 to the electromagnetic valve 11. Further, the controller 25 inputs a signal related to the driving of the drill hydraulic motor 15 to the electromagnetic valve 11, whereby the drilling portion 16 of the drill 4 can be rotationally driven. Furthermore, the controller 25 can move the drill hydraulic motor 15 and the drilling portion 16 of the drill 4 up and down by inputting a signal related to expansion and contraction of the drill lifting cylinder 14 to the electromagnetic valve 11. The controller 25 can measure the fertilizer and supply the fertilizer through the protrusion 18 and the supply port 51 by inputting a signal related to the opening and closing of the supply shutter 21 to the electromagnetic valve 11.

  The drill elevating cylinder 14 and the supply shutter 21 are connected to a drive time detector 27 that detects the descent time of the drill hydraulic motor 15 and the drilling portion 16 and the opening time of the supply shutter 21, respectively. The drive time detector 27 inputs the drill hydraulic motor 15 and the descent time of the drilling unit 16 and the opening time of the supply shutter 21 to the controller 25, respectively. The controller 25 inputs an appropriate signal to the electromagnetic valve 11 in order to extend and retract the drill elevating cylinder 14 or open and close the supply shutter 21 according to the input descent time and opening time.

  Here, the fertilization work process using the local fertilizer machine 1 is demonstrated, referring FIG.7 and FIG.8.

First, as shown in FIG. 7, in the operation panel 13 of the local fertilizer applicator 1, when an operation related to the start of fertilization work is not input, each member is not driven (NO in S101). When an operation related to the start of fertilization work is input on the operation panel 13, the state of the traveling wheel 3 is detected (YES in S101).
As a method for detecting the driving state and the stopping state of the traveling wheel 3, for example, if the rotational speed of the traveling wheel 3 detected by the rotational speed detector 26 is increased, the controller 25 determines that the traveling wheel 3 is in the driving state. And if rotation speed is constant, the method of judging the traveling wheel 3 as a stop state can be mentioned.

  In the present embodiment, drilling and fertilizer supply are performed while the traveling wheel 3 is stopped. Therefore, when the traveling wheel 3 is not stopped (NO in S102), the traveling wheel 3 is stopped (S103). The stop of the traveling wheel 3 is achieved by inputting an appropriate signal from the controller 25 to the electromagnetic valve 11 to stop the traveling hydraulic motor 9. If the traveling wheel 3 has already stopped (YES in S102), a drilling operation is performed next.

Next, the drilling part 16 is driven in a state where the traveling wheel 3 is stopped (S104). The driving of the piercing portion 16 is achieved by inputting an appropriate signal from the controller 25 to the electromagnetic valve 11 to drive the drill hydraulic motor 15.
Further, the drill lifting cylinder 14 is driven to extend (S105). As a result, the drill hydraulic motor 15 and the piercing portion 16 being driven to rotate start to descend.

Next, it is determined whether or not the extension drive time of the drill elevating cylinder 14 exceeds a preset threshold value (S106). This determination is achieved by the controller 25 comparing the duration of the extension drive of the drill elevating cylinder 14 detected by the drive time detector 27 with a preset threshold value. The threshold value used in this step can be determined based on, for example, the extension speed of the drill lifting cylinder 14, the distance between the lower tip of the drilling portion 16 and the field G, the depth of the desired hole H, and the like. .
When the extension drive time of the drill elevating cylinder 14 does not exceed the threshold value, the extension drive of the drill elevating cylinder 14 is continued (NO in S106). In this case, since the drilling part 16 has not reached the field G, or the hole H has not reached the desired depth, drilling by the drill 4 is continued.
When the extension drive time of the drill lifting cylinder 14 exceeds the threshold (YES in S106), the extension drive of the drill lifting cylinder 14 is stopped (S107). At this time, since the hole H has reached a desired depth, drilling of the drill 4 may be stopped.

  Subsequently, the drill elevating cylinder 14 is driven to contract (S108). As a result, the drill hydraulic motor 15 and the perforated portion 16 being driven to rotate start to rise.

Next, it is determined whether or not the contraction drive time of the drill elevating cylinder 14 exceeds a preset threshold value (S109). This determination is achieved by the controller 25 comparing the duration of the contraction drive of the drill lifting cylinder 14 detected by the drive time detector 27 with a preset threshold value. In addition, the threshold value used in this process can use the threshold value used in the comparison process (S106) with the expansion drive time of the drill raising / lowering cylinder 14 and a threshold value.
When the contraction drive time of the drill elevating cylinder 14 does not exceed the threshold value, the contraction drive of the drill elevating cylinder 14 is continued (NO in S109). In this case, the drilling hydraulic motor 15 and the drilling part 16 continue to rise because the drilling part 16 is not removed from the hole H or the drilling hydraulic motor 15 and the drilling part 16 are not returned to the initial positions. Is done.
When the contraction drive time of the drill lifting cylinder 14 exceeds the threshold value (YES in S109), the contraction drive of the drill lift cylinder 14 is stopped (S110). At this time, since the drill hydraulic motor 15 and the drilling portion 16 have returned to the position before the drill lift cylinder 14 is extended, the contraction drive of the drill hydraulic motor 15 may be stopped.

  Furthermore, the rotation drive of the punching part 16 is stopped (S111). A hole H is formed in the field G by the operation of each member from the driving start process (S104) of the punching section 16 to the stop process (S111) of the punching section 16.

  Next, as shown in FIG. 8, the lower supply shutter 21 in the shutter frame 22 is driven to open (S112). As a result, the fertilizer that has been weighed in advance in the metering portion 24 of the shutter frame 22 in the fertilizer supply member 5 falls into the hole H through the protruding portion 18 and the supply port 51, whereby the supply of fertilizer is achieved. The At this time, since the upper supply shutter 21 in the shutter frame 22 is kept closed, the fertilizer accommodated in the fertilizer hopper 19 cannot enter the protruding portion 18 and the supply port 51. As a result, supply of excess fertilizer exceeding a predetermined amount can be prevented.

Subsequently, it is determined whether the opening time of the supply shutter 21 exceeds a preset threshold value (S113). This determination is achieved by the controller 25 comparing the duration of the opening driving of the supply shutter 21 detected by the driving time detector 27 with a preset threshold value. Note that the threshold used in the step is, for example, measured in advance for the time required for the fertilizer to fall from the measuring unit 24 through the protruding portion 18 and the supply port 51 into the hole H, so that a margin is provided. A time obtained by adding a little surplus time to the measurement time can be used.
If the opening time of the supply shutter 21 does not exceed the threshold, the supply shutter 21 is kept open (NO in S113). In this case, since all of the fertilizer to be supplied has not fallen, the opening drive of the supply shutter 21 is continued.
When the opening time of the supply shutter 21 exceeds the threshold (YES in S113), the supply shutter 21 is driven to close (S114). At this time, since the metering unit 24 of the shutter frame 22 is in an empty state, it is preferable to measure new fertilizer with the metering unit 24 in preparation for the next fertilizer supply process. Specifically, the upper supply shutter 21 in the shutter frame 22 is kept closed, and the upper supply shutter 21 is driven to open so that the fertilizer stored in the fertilizer hopper 19 is empty. Only the internal volume of the measuring unit 24 enters the unit 24. Furthermore, since the upper supply shutter 21 is driven to close, a predetermined amount of fertilizer is contained in the measuring unit 24. Therefore, in the next fertilizer supply process, the lower supply shutter 21 is driven to open. A predetermined amount of fertilizer can be supplied into the next hole H only by doing.

  After the supply shutter 21 is closed, the traveling wheel 3 is driven (S115). The driving of the traveling wheel 3 is achieved by inputting an appropriate signal from the controller 25 to the electromagnetic valve 11 to drive the traveling hydraulic motor 9.

Next, it is determined whether or not the rotational speed of the traveling wheel 3 exceeds a preset threshold value (S116). This determination is achieved by the controller 25 comparing the rotational speed of the traveling wheel 3 detected by the rotational speed detector 26 with a preset threshold value. In addition, the threshold value used in this process can be determined based on the space | interval which provides the hole H along the diameter of the traveling wheel 3, and the advancing direction of the local fertilizer machine 1, for example. The threshold value is the number of rotations of the traveling wheel 3 required to reach the next hole H formation site.
If the rotational speed of the traveling wheel 3 does not exceed the threshold value, the driving of the traveling wheel 3 is continued (NO in S116). In this case, since the local fertilizer applicator 1 does not reach the location where the next hole H is formed, the travel of the local fertilizer applicator 1 by driving the traveling wheels 3 is continued.
When the rotation speed of the traveling wheel 3 exceeds the threshold (YES in S116), the traveling wheel 3 is stopped (S117). At this time, since the local fertilizer applicator 1 has been moved to the location where the next hole H is to be formed, the conditions for starting the next drilling and fertilizer supply have been prepared.

After the traveling wheel 3 is stopped, when an operation related to the fertilization work stoppage is not input on the operation panel 13 of the local fertilizer applicator 1 (NO in S118), the next drilling process is started as shown in FIG. 7 (S104). ).
After the traveling wheel 3 is stopped, when an operation related to the stop of the fertilization work is input on the operation panel 13 of the local fertilizer machine 1, the fertilization work is completed without starting the next drilling process (YES in S118). .
Therefore, in the present embodiment, the fertilization work process including drilling, fertilizer supply, and traveling to the next scheduled fertilizer application position is set to continue automatically unless input related to the fertilization work stoppage is made. .

  As described above, even if the hydraulic local fertilizer machine 1 has a simpler structure than a mechanical device, automatic operation control can be performed with appropriate settings, so that fertilization work can be performed efficiently. .

  In consideration of the safety of the local fertilizer applicator 1, the input relating to the stop of the fertilizer operation is set to interrupt the fertilizer operation and stop the driving of each member at any time when input is made. It is preferable.

Further, when the operation of the step (S102 or S117) in which the traveling wheel 3 stops is performed, the driving of the drilling part 16 (S104) and the extension driving (S105) of the drill lifting cylinder 14 are started in the drilling step. You can keep it. Specifically, when the controller 25 determines that the rotational speed of the traveling wheel 3 is likely to reach a threshold value, the rotation drive of the drilling unit 16 and the lowering of the drill hydraulic motor 15 and the drilling unit 16 are performed. An appropriate signal can be input from the controller 25 to the electromagnetic valve 11 so as to start. Thereby, since the drilling part 16 will be in the state which adjoined the farm field G when the local fertilizer machine 1 arrives at the location which the traveling wheel 3 stops and forms the hole H, a drilling can be started rapidly. . As a result, it is possible to improve the efficiency of fertilization work and shorten the required time, which is preferable.
In addition, in order to start a part of the drilling process before the traveling wheel 3 is stopped, in addition to a threshold value that is an appropriate number of revolutions of the traveling wheel 3 set in advance in the controller 25, it is slightly less than the threshold value. A second threshold value of the rotation speed can be set. Thereby, when the rotation speed of the traveling wheel 3 reaches the second threshold value, a part of the drilling process such as driving of the drilling unit 16 is started, and when the rotation speed of the traveling wheel 3 reaches the threshold value, it is described above. If the traveling wheel 3 is stopped in this way, drilling can be started quickly.

As described above, the time for which the drill elevating cylinder 14 is driven to contract is set as the threshold time until the drill hydraulic motor 15 and the drilling unit 16 return to the position before the drill elevating cylinder 14 is extended and driven ( S109).
However, since the local fertilizer machine 1 is often used when fertilizing at a plurality of locations, the drill hydraulic motor 15 and the drilling unit 16 are intermittently used a plurality of times until an operation relating to the stop of the fertilization operation is input. Often to do.
Therefore, as the time for retracting and driving the drill elevating cylinder 14, the time until the lower end portion of the drilling portion 16 comes out of the hole H and is slightly separated from the field G is a specific threshold value used only during fertilization work. It is good to set as. Thereby, during fertilization work, a quick drilling can be performed in which the punching unit 16 can be maintained in the state of being close to the field G by using a specific threshold value. Furthermore, when an operation related to the stop of fertilization work is input, the drill elevating cylinder 14 contracts to the state shown in FIG. 1 by using the above-described normal threshold value, so that the local fertilizer machine 1 is moved, removed, In addition, it is preferable that the drill hydraulic motor 15 and the drilling portion 16 that are raised are less likely to interfere during separate operations such as maintenance.

Further, when the fertilizer supplied into the hole H is, for example, in a dry state and takes a short time to fall, the rotation of the punching unit 16 is stopped in the final stage (S111) of the punching process, and then the supply shutter 21 When the opening drive (S112) is being performed, the driving of the traveling wheels 3 (S115) may be started. Specifically, when the lower supply shutter 21 in the shutter frame 22 is driven to open after the perforating unit 16 is stopped, the driving of the traveling wheel 3 can be started at a low speed substantially simultaneously or slightly delayed. Thereby, the supply of the fertilizer which dries and falls quickly and the movement to the location which forms the next hole H can be performed in parallel.
At this time, if the opening time of the supply shutter 21 reaches the threshold value during the movement of the local fertilizer machine 1 by driving the traveling wheel 3 (YES in S113), the supply shutter 21 is closed at that time. Good (S114). As a result, it is possible to improve the efficiency of fertilization work and shorten the required time, which is preferable.

  In the above-described embodiment, the driving of the drill lifting cylinder 14 is controlled based on the driving time detected by the driving time detector 27. As another aspect of the present embodiment, instead of the drive time detector 27, for example, appropriate limit switches or the like are provided at the maximum rising position and the maximum lowering position of the drill hydraulic motor 15 and the drilling section 16 in the guide section 17 or the like. The vertical movement position may be directly detected.

Since the local fertilizer applicator 1 employs a hydraulic type as described above, it is easy to change the arrangement of each member.
Here, the modification of arrangement | positioning of a traveling member etc. is shown in FIG. FIG. 9 is a schematic diagram showing the positional relationship between the traveling wheel 301 and the hole H formed by the drill.

In the embodiment shown in FIG. 9, a pair of traveling wheels 301 that are rotatable by receiving the hydraulic pressure of the hydraulic pump 6 are provided forward and on both sides in the left-right direction of the main body 201. Furthermore, four holes H can be formed at a time by providing four perforated portions 16 which were two in the embodiment shown in FIGS. In the embodiment shown in FIG. 9 as well, like the embodiment shown in FIGS. 1 to 8, at least a part of the region T2 through which the traveling wheel 301 passes and the region in which the hole H is formed overlap. Is arranged.
In the embodiment shown in FIG. 9, the number of fertilization places increases by adding the perforated part 16 to the area where the traveling wheel 3 is provided in the embodiment shown in FIGS. Leads to improvement.

  In the present embodiment, a pair of tires provided on the left and right sides of the main body 2 are used as the traveling wheels 3, but the crawler adopts an endless belt or the like wider than the traveling wheels 3 at the substantially central portion in the width direction of the main body 2. May be used instead of the traveling wheel 3.

  As mentioned above, although embodiment which applied the invention made | formed by this inventor was described, this invention is not limited by the description and drawing which make a part of indication of this invention by this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

1: local fertilizer, 2, 201: main body, 3, 301: traveling wheel, 4: drill, 5: fertilizer supply member, 51: supply port, 6: hydraulic pump, 7: engine, 8: battery, 9: traveling Hydraulic motor, 10: auxiliary wheel, 11: solenoid valve, 12: handle, 13: operation panel, 14: drill lifting cylinder, 15: drill hydraulic motor, 16: drilling section, 17: guide section, 18: protrusion 19: Fertilizer hopper, 20: Fertilizer discharge port, 21: Supply shutter, 22: Shutter frame, 23: Supply amount adjustment unit, 24: Metering unit, 25: Controller, 26: Revolution detector, 27: Driving time Detector, A1 and A2: cultivated tree, H: hole, G: field, X: raindrop part

Claims (5)

A main body that generates a driving force;
A traveling member provided on the main body and capable of moving the main body by rotating;
A piercing member provided in the main body and capable of piercing the field by moving up and down;
A fertilizer supply member that is provided in the main body and has a supply port that opens toward the field, and is capable of supplying fertilizer through the supply port in a hole formed by the perforation member;
The supply port of the perforated member and the fertilizer supply member is arranged on the rear side of the traveling member,
Local fertilizer machine. The traveling member and the perforating member are arranged so that at least a part of the region through which the traveling member passes and the region perforated by the perforating member overlap.
The local fertilizer applicator according to claim 1. The traveling member and the perforating member are provided in pairs on the left and right sides of the main body,
The local fertilizer applicator according to claim 1 or 2. The fertilizer supply member has a fertilizer storage section for storing fertilizer,
The supply port is provided at the tip of the cylindrical protrusion that extends from the fertilizer container in the vicinity of the field,
Arranged from the front of the vehicle body in the order of the running member, the punching member and the supply port,
The fertilizer passes through the protrusion and the supply port, falls from the supply port, and is supplied into the hole.
The local fertilizer machine according to any one of claims 1 to 3. The main body has a hydraulic pump that is driven in conjunction with an engine provided in the main body and generates a driving force.
The traveling member, the perforating member, and the fertilizer supply member are driven by the hydraulic pressure generated by the hydraulic pump.
The local fertilizer machine according to any one of claims 1 to 4.

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