JP2006223155A - Lotus root digger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lotus root digger having such a mechanism as to be easily movable throughout a lotus pond and take water inside the lotus pond into an extrusive pump, ensuring the pump or the like not to undergo cloggings even with such water, affording good workability through stably feeding water for digging lotus roots. <P>SOLUTION: The lotus root digger has the following construction and mechanism: An engine 21 and a discharging pump 22 are loaded on a machine body frame 9 easily movable on a lotus pond, a muddy water filter 10 for filtering water to be taken is set under a position in the pond, and water for digging lotus roots is taken via the filter 10 and a water-absorbing pipe 17 along with pressurization by the pump 22 and extruded via a pressurized water-discharging nozzle. In this digger, the muddy water filter 10 comprises a filtering steel plate 2 with bowl-shaped perforations and an anticlogging element 3 set inside the steel plate 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure of a lotus root digging apparatus that performs a lotus root digging operation while moving in a lotus field where lotus root is cultivated.

Conventionally, in the publicly known technology related to the lotus root digging apparatus, as in Patent Document 1, an air compressor is provided in a traveling apparatus that moves in the lotus field, and compressed air discharged from the air compressor is supplied from a hose. Was configured to dig. In addition, a water intake device was provided to discharge a certain amount of water under pressure, and to discharge the pressure water together with the compressed air.
Moreover, in the technique of patent document 2, the technique of sitting on a seat for seating and performing harvesting work, such as a lotus root, is disclosed.

In Hasuda, as shown in FIG. 8, a cultivating board D, which is hard soil, is present at the bottom, and a mud layer F is formed 10 to 20 cm wide on it, and mud and water are mixed on it. The muddy water layer G exists in a width of 40 to 50 cm, and the surface water layer W in which mud settles and is clear to some extent is formed on the muddy water layer G.
The lotus root R is grown on the mud layer F having a width of 10 to 20 cm in the above so as to crawl in the horizontal direction. When digging this lotus root R, the lotus root R is usually used as a digging tool by scooping up mud by discharging compressed air or pressurized water from a compressed air discharge nozzle or a pressurized water discharge nozzle. Harvesting is performed by removing the holding force held in the mud layer F and raising it.

  Digging and harvesting operations are usually performed in the winter when the New Year comes, and are performed in extremely cold and cold periods. In addition, since the depth of Hasuda is deep as a whole, as shown in FIG. 7, the worker M works in a state where she wears waterproof work clothes up to the chest and sinks in the Hasuda near the chest. The work will be under severe conditions.

Conventionally, when the lotus root excavator is not used, the worker M searches the inside of the mud layer F with his feet, scratches the portion where the lotus root R exists, and lifts the lotus root R. It was.
In the present invention, there is provided an apparatus for harvesting the digging operation at the tip of the foot such that the lotus root R loses its holding power and floats by fluidizing the mud layer F by discharging pressure water. It is something to be done.

Further, when the conventional lotus root digging apparatus is used, the work is performed in a state as shown in FIG.
The engine / pump set device 120 is placed on a farm road Q passing next to Hasuda T and placed on a truck, etc., and water is supplied from the irrigation water passage N flowing on the side of the farm road Q through the intake L. It was pumped up by the pump set device 120 and supplied to the lotus root digging device 101 via the extension hose 121.
The lotus root digging apparatus 101 is provided with a pressure water discharge nozzle 119 via a hose 114. Then, as shown in FIG. 7, the operator M operates the pressure water discharge nozzle 119 to discharge the pressure water to the mud layer F, thereby eliminating the holding power of the lotus root R in the mud layer F. They were digging up to float.

However, in the case of this conventional lotus root digging apparatus 101, the following problems existed.
That is, in Hasuda T, for example, a fertilizer spraying device as shown in Patent Document 3 is used, and fertilizer for growing a lotus lotus root R of 120 kg per roll is introduced. The large amount of fertilizer is dissolved, and the muddy water layer G, the surface water layer W, and the mud layer F are in a state containing this large amount of fertilizer.
In this state, the inside of Hasuda T is stirred by the pressure water discharge nozzle 119, so that when the water in the Hasuda T flows out of the drain port X by flowing, a large amount of eutrophied wastewater is produced. The environmental problem of flowing into drains and eutrophication of lakes and rivers arises.

In particular, in the case of the lotus root excavator 101 in FIG. 6, water is taken from the irrigation water passage N on the side of the farm road Q instead of taking water from the surface water layer W in the lotus T to the pump. When this clean water is discharged into the lotus T, there is a problem that the amount of water taken from the irrigation water passage N flows from the lotus T through the drainage port X to the lake water or river. It was.
In order to solve this problem, the water in the surface water layer W containing a large amount of fertilizer inside the lotus T can be used as discharge water from the pressure water discharge nozzle 119.
However, in Hasuda T, the leaves of the lotus R have floated in the state of withering, and there are a lot of other floating matters. Since there is a thing, if the surface water layer W inside the Hasuda T is taken, a problem such as the pump of the engine / pump set device 120 being clogged immediately occurs. That is, if the pump or the like is clogged in this way, the water for digging the lotus root R is not stably supplied, and the digging workability of the lotus root R is lowered.

6 is connected to the engine / pump set device 120 arranged outside the Hasuda T via the extension hose 121, and therefore, for the operator who operates the pressure water discharge nozzle 119. The followability is low, the burden on the worker is increased, and there is a problem in terms of workability.
JP 11-103633 A JP 2001-286212 A JP 2004-57082 A

The present invention relates to a structure of a lotus root digging apparatus that can use the water in the lotus T as pressure water for digging the lotus root R.
That is, the lotus excavation device is configured to move easily within the lotus T, and is configured to take water inside the lotus T into the discharge pump. In this configuration, a filtration mechanism is provided so as to prevent clogging.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, according to claim 1, the engine and the discharge pump are mounted on a machine frame that can be easily moved on the Hasuda, and a muddy water filtering device for filtering the water to be taken is disposed in the Hasuda below the machine frame. The lotus root digging device is configured to take water for digging lotus root from the inside of the lotus through the muddy water filtration device and the water absorption pipe, pressurize it with the discharge pump, and discharge it from the pressure water discharge nozzle. Thus, the muddy water filtering device is configured to include a bowl-shaped perforated filtration iron plate and a clogging prevention body provided inside the bowl-shaped perforated filtration iron plate to prevent clogging.

  According to a second aspect of the present invention, in the lotus root digging device according to the first aspect, the clogging prevention body is constituted by a rotating brush.

  According to a third aspect of the present invention, in the lotus root digging apparatus according to the first aspect, the clogging prevention body is constituted by a brush, and the bowl-shaped perforated filtration iron plate on the outer periphery of the clogging prevention body is rotated. is there.

  As effects of the present invention, the following effects can be obtained.

  In claim 1, by using the water in the lotus for digging the lotus root, the work labor can be reduced and the workability can be improved, and the discharge of the eutrophic water in the lotus can be prevented. And when the water in Hasuda is used for digging lotus root, the discharge pump etc. will not be clogged due to mud and impurities in the water to be taken, and the water for digging lotus root will be stabilized. Therefore, good workability can be obtained.

  According to the second aspect of the present invention, clogging of the bowl-shaped perforated filtration iron plate of the muddy water filtration apparatus can be prevented with a simple structure, and the filtration performance of the muddy water filtration apparatus can be improved.

  According to the third aspect of the present invention, it is possible to prevent clogging of the bowl-shaped perforated filtration iron plate of the muddy water filtration apparatus with a simple structure, and it is possible to improve the filtration performance of the muddy water filtration apparatus.

Next, embodiments of the invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a state of digging by the lotus root digging device 1 of the present invention, FIG. 2 is an overall side view of the lotus root digging device 1 of the present invention, and FIG. 3 is a rear view of the lotus root digging device 1 of the present invention. 4 is a diagram showing the configuration of the muddy water filtering device 10, FIG. 5 is a diagram showing another embodiment, FIG. 6 is a diagram showing a state of digging by the conventional lotus root digging device 101, and FIG. FIG. 8 is a sectional view showing the situation of Hasuda T. FIG.

1-4, the structure of the lotus root mining apparatus of this invention is demonstrated.
In the lotus T, the lotus root digging device 1 is floated in the surface water layer W so as to be easily movable in the lotus T.
The lotus root excavator 1 is provided with a float 8 for obtaining a buoyancy that rises in the surface water layer W. Although the float 8 of the present embodiment is configured by the left float 8L and the right float 8R arranged on the left and right, a float having a different configuration may be used. In the present embodiment, the worker M is configured not to get on the lotus root digging device 1, but the capacity of the float 8 can be increased so that the worker M can get on.
In the present embodiment, the lotus excavation device 1 is configured to move in a state where it floats on the Hasuda T by the float 8, but in addition to the float 8 or in place of the float 8, a foil type, a crawler type, etc. It can also be set as the structure which can provide self-propelled in Hasuda T.

  A body frame 9 is placed on the floats 8L and 8R. As shown in FIG. 4 or the like, vibration isolators 6, 6... Are interposed on the machine frame 9, and the set frame 7 of the engine / pump set device 20 is mounted on the vibration isolator 6. It is location.

  Specifically, the fuselage frame 9 includes horizontal frames 9a and 9a that are arranged substantially in parallel in the front-rear direction with the horizontal direction of the aircraft as the longitudinal direction, and between the frames 9a and 9a at the left and right ends of the horizontal frames 9a and 9a. It has vertical frames 9b and 9b installed in the longitudinal direction of the machine body. .. Are arranged and fixed on the horizontal frames 9a, 9a, respectively, and the L-shaped mounting frames 28, 28 are mounted on the anti-vibration devices 6, 6. Thus, the set frame 7 is placed and fixed. The floats 8L and 8R are fixed below the fuselage frame 9 having such a configuration. Further, an auxiliary frame 29 for assisting relative positioning of the left and right floats 8L and 8R is installed at the front end portion between the floats 8L and 8R.

  In addition, the set frame 7 is constructed in such a manner that a pipe-like member is bent into a square shape and is constructed on side frames 7a and 7a that constitute both left and right sides, and lower sides of these left and right side frames 7a and 7a. It has a mounting plate 7b on which the engine / pump set device 20 is mounted, and horizontal frames 7c and 7c installed on the front and rear of the side frames 7a and 7a, and has a substantially rectangular parallelepiped outer shape. Is configured.

  In such a configuration, the set frame 7 is placed and fixed via vibration isolators 6, 6... Arranged on the body frame 9, and the engine and the engine are placed on the placement plate 7 b of the set frame 7. The pump set device 20 is placed. That is, the vibrations of the engine 21 and the discharge pump 22 constituting the engine / pump set device 20 are not directly transmitted to the body frame 9 and the floats 8L and 8R. An anti-vibration device 6 is interposed therebetween.

In addition, a bearing tray 31 extends rearward on the rear side of the machine body frame 9, and the muddy water filtering device 10 is disposed below the bearing tray 31.
As described above, the engine / pump set device 20 integrally includes the engine 21 and the discharge pump 22. The engine 21 drives the discharge pump 22, and the engine 21 is provided with a generator 30, and the drive motor 11 driven by the electric power generated by the generator 30 is provided. The drive motor 11 transmits power to the flexible drive shaft 13 via the speed reducer 12, and the flexible drive shaft 13 moves up and down the bearing tray 31 as power for rotating the clog prevention body 3 of the muddy water filtering device 10. It is configured to transmit power to the input counter shaft 18 that is pivotally supported in the direction.
A set of the drive motor 11 and the speed reducer 12 is fixed to the upper portion of the set frame 7. A battery (not shown) that stores the power generated by the generator 30 can be mounted on the set frame 7 by placing it on the mounting plate 7b.

  Further, a water absorption pipe 17 is extended from the discharge pump 22 toward the muddy water filtering device 10. Similarly, a pressure water discharge pipe 14 is extended from the discharge pump 22 toward the pressure water discharge nozzle 19. In other words, the discharge pump 22 takes water in the Hasuda T through the muddy water filtration device 10 and the water absorption pipe 17 and discharges the taken water from the pressure water discharge nozzle 19 through the pressure water discharge pipe 14. It is said.

  With such a configuration, the worker M performs the excavation work of the lotus root R in a state as shown in FIG. That is, while moving the lotus root digging device 1 floating on the lotus T, the water taken from the lotus T through the muddy water filtering device 10 and the water suction pipe 17 is used to move the pressure water discharge pipe 14. The lotus root R is dug while operating the pressure water discharge nozzle 19 provided at the tip.

In FIG. 4, the mechanism of the muddy water filtration apparatus 10 will be described.
As described above, the pressure water discharge nozzle 19 discharges the pressure water for performing the digging operation, but the discharged water breaks the mud layer F and rolls up the muddy water. Above the mud layer F, the surface water layer W is not clear water, and the surface water layer W and the muddy water layer G are mixed to form a muddy water layer. The muddy water filtering device 10 is for filtering water in the lotus T. That is, in the lotus excavation device 1 according to the present invention, the water in a state where the mud is mixed is taken by the discharge pump 22, but in the mud water, impurities such as dead leaves exist in addition to the mud. Therefore, it is necessary to filter such impurities including mud in the mud filtration apparatus 10.

  The muddy water filtration apparatus 10 constitutes a bowl-shaped outer peripheral body constituted by a bowl-shaped perforated filtration iron plate 2 having a large number of holes 2a, 2a. The upper opening of the bowl-shaped perforated filtration iron plate 2 is closed by a disk-shaped top plate 4, and inside the bowl-shaped perforated filtration iron plate 2, the clogged portion is released from the inside. In order to eliminate the clogging, the clogging prevention body 3 is provided along the inner peripheral portion of the bowl-shaped perforated filtration iron plate 2.

  The clogging prevention body 3 is constituted by a rotating brush 3a, and the brush 3a is radially arranged at a plurality of locations (4 locations, 6 locations, or 8 locations) at regular intervals. Here, each brush 3a which comprises the clogging prevention body 3 is arrange | positioned so that the water taken in through the muddy water filtration apparatus 10 may not be disturbed, or a water intake amount may fall.

  Further, in the muddy water filtration apparatus 10, the cylindrical shaft 24 connected to the water absorption pipe 17 is pivotally supported and fixed to the bearing tray 31 in the vertical direction, and becomes a substantially circular shape in plan view. It is arrange | positioned in the approximate center part of 10 (so that it may become the same axial center). That is, the cylinder shaft 24 becomes a central axis in the muddy water filtration apparatus 10. And it is comprised so that the water after the filtration which entered in the bowl-shaped perforated filtration iron plate 2 may be absorbed from the some hole 24a opened on the outer periphery in the lower part of this cylindrical shaft 24. FIG. The cylindrical shaft 24 and the bowl-shaped perforated filtration iron plate 2 are fixed by a fixture 35 such as a bolt or a pin through the bottom surface.

  The clogging prevention body 3 is fixed to a rotating upper surface plate 4 that constitutes the upper surface of the muddy water filtering device 10, and the rotating upper surface plate 4 is driven by a chain 25 from the input counter shaft 18. A sprocket 5 is provided. That is, the input counter shaft 18 protrudes below the bearing tray 31, and a sprocket 18 a is fixed to the protruding portion, and the chain 25 is wound around the sprocket 18 a and the sprocket 5.

  The sprocket 5 is fixed to a rotating cylinder 32 that is rotatably fitted to the cylinder shaft 24 below the upper surface plate 4 with a fixing tool 33 such as a bolt or a pin through the upper surface plate 4. Further, around the rotating cylinder 32, the clogging prevention body 3 having a bottomed cylindrical shape is fixed to the rotating cylinder 32 by a fixture 34 such as a bolt or a pin. The brush 3a is provided so as to constitute the outer peripheral side surface of the clogging prevention body 3 having a bottomed cylindrical shape, and the brush 3a has a tip portion of the hole 2a, 2a, .. is arranged in contact with the inner periphery.

  That is, the sprocket 5 is rotatably fitted to the fixed cylinder shaft 24, the upper surface plate 4 is interposed between the sprocket 5 and the rotating tube 32, and the clogging prevention body 3 is the upper surface plate 4. The sprocket 5, the upper surface plate 4, and the clogging prevention body 3 are integrally configured by being fixed to the rotary cylinder 32. The integral sprocket 5, the upper surface plate 4, and the clogging prevention body 3 are driven at a low rotation around the cylindrical shaft 24 around the cylindrical shaft 24.

  In such a configuration, power from the drive motor 11 is transmitted to the input counter shaft 18 via the speed reducer 12 and the flexible drive shaft 13, and the sprocket 18a is rotated. The rotation of the sprocket 18 a rotates the sprocket 5 through the chain 25, and the top plate 4 and the clogging prevention body 3 rotate around the cylindrical shaft 24 together with the sprocket 5. Thereby, the brush 3a of the clogging prevention body 3 rotates along the inner peripheral portion on the hole portions 2a, 2a,...

  Thus, when the muddy water filtering device 10 is configured in the lotus root digging apparatus 1, when the water in the lotus T is used for the digging work of the lotus root R, mud and impurities in the water to be taken in are caused. Thus, the discharge pump 22 and the like are not clogged, water for digging the lotus root R can be stably supplied, and good workability can be obtained.

  Further, by configuring the clogging prevention body 3 of the muddy water filtering apparatus 10 with the rotating brush 3a, it is possible to prevent clogging of the bowl-shaped perforated filtration iron plate 2 of the muddy water filtering apparatus 10 with a simple structure, The filtration performance of the muddy water filtration apparatus 10 can be improved.

  Moreover, the muddy water filtration apparatus 10 can also be set as the following structures. In FIG. 5, another embodiment of the muddy water filtration apparatus 10 will be described. In addition, about the member similar to the said embodiment of the muddy water filtration apparatus 10 demonstrated using FIG. 4, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the muddy water filtration apparatus 10 of this configuration, the clogging prevention body 3 constituted by the brush 3a is fixed, and the bowl-shaped perforated filtration iron plate 2 is rotated. That is, the clogging prevention body 3 is fixed to the cylinder shaft 24 via a fixed cylinder 37 that is externally fixed to the cylinder shaft 24 in a fixed state by a fixture 36 such as a bolt or a pin. The sprocket 5 is fixed to a rotating cylinder 38 that is rotatably fitted to the cylinder shaft 24 below the upper surface plate 4 with a fixture 39 such as a bolt or a pin through the upper surface plate 4.

  Moreover, the support part 4a bent and formed downward is formed in the outer edge part of the upper surface board 4, and the upper end part of the bowl-shaped perforated filtration iron plate 2 is inscribed in this support part 4a And fixed by a fixture 40 such as a bolt or a pin. In addition, the structure and fixing method in the adhering part of the upper surface plate 4 and the bowl-shaped perforated filtered iron plate 2 are not limited to this embodiment. For example, the upper end portion of the bowl-shaped perforated filtration iron plate 2 is circumscribed to the support portion 4a of the upper surface plate 4, or the upper side of the bowl-shaped perforated filtration iron plate 2 is bent inward to form the bowl-shaped perforated filtration iron plate 2 side. Further, a support portion may be formed, and welding may be used as a fixing method.

  That is, the sprocket 5 is rotatably provided with respect to the fixed cylinder shaft 24, and the upper surface plate 4 is interposed between the sprocket 5 and the rotating tube 38, and the bowl-shaped hole is formed in the upper surface plate 4. The sprocket 5, the upper surface plate 4, and the bowl-shaped perforated filtered iron plate 2 are integrally formed by fixing the open filtered iron plate 2. The integral sprocket 5, the upper surface plate 4, and the bowl-shaped perforated filtering iron plate 2 are driven around the cylindrical shaft 24 at a low rotation around the cylindrical shaft 24.

  In such a configuration, power from the drive motor 11 is transmitted to the input counter shaft 18 via the speed reducer 12 and the flexible drive shaft 13, and the sprocket 18a is rotated. The rotation of the sprocket 18 a rotates the sprocket 5 through the chain 25, and the upper surface plate 4 and the bowl-shaped perforated filtering iron plate 2 rotate around the cylindrical shaft 24 together with the sprocket 5. Thereby, the bowl-shaped perforated filtration iron plate 2 rotates along the outer peripheral portion of the brush 3 a of the clogging prevention body 3. That is, when the bowl-shaped perforated filtration iron plate 2 rotates, the brush 3a acts on the hole portions 2a, 2a,.

  Also with such a configuration, clogging of the bowl-shaped perforated filtration iron plate 2 of the mud filtration apparatus 10 can be prevented with a simple structure, and the filtration performance of the mud filtration apparatus 10 can be improved.

  In the present invention, as described above, the engine / pump set device 20 is mounted on the body frame 9 that can be easily moved on the Hasuda T by the float 8, and the muddy water filtration device 10 for filtering the water to be taken is installed in the body frame. The water for digging the lotus root R is disposed in the lotus T below 9 and taken from the lotus T through the muddy water filtration device 10 and the water absorption pipe 17 and pressurized by the discharge pump 22 to discharge the pressure water. Since it is configured to discharge from the nozzle 19, the water in the lotus T is used for the excavation work of the lotus root R, so that water is sent from the engine / pump set device 20 arranged at another position by a long pressure water hose. It is no longer necessary to dig up lotus root R. Therefore, work labor is reduced and workability is improved.

  Further, as shown in FIG. 1, water for digging up the lotus root R is taken from the inside of the lotus T and discharged into the lotus T by the pressure water discharge nozzle 19, whereby the eutrophic water in the lotus T is used. Since it has a structure that does not flow out to the outside, the pressure water for digging the lotus root R is not taken from the outside and injected, and the eutrophic water accumulated in the lotus T is discharged from the drain port X to the lotus T As a result, there is no longer any environmental problem of eutrophication of the rivers and lakes into which the drainage water from the lotus T flows.

The figure which shows the digging state by the lotus root digging apparatus 1 of this invention. The whole side view of the lotus root digging apparatus 1 of this invention. Similarly, the rear view of the lotus root digging device 1 of the present invention. The figure which shows the structure of the muddy water filtration apparatus. The figure which similarly shows another embodiment. The figure which shows the digging state by the conventional lotus root digging apparatus 101. FIG. The figure which shows the digging work in Hasuda T. Sectional drawing which shows the situation of Hasuda T. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lotus root excavation device 2 Corrugated perforated filtration iron plate 3 Clogging prevention body 8 Float 9 Airframe frame 10 Muddy water filtration device 17 Water absorption pipe 19 Pressure water discharge nozzle 20 Engine pump set device 21 Engine 22 Discharge pump R Hasune T T

Claims (3)

An engine and a discharge pump are placed on a body frame that can be easily moved on Hasuda, and a muddy water filtration device for filtering the water to be taken is placed in Hasuda below the body frame to dig out the lotus root. A lotus root digging device configured to take water from the inside of Hasuda through the muddy water filtration device and the water absorption pipe and pressurize with the discharge pump, and discharge from the pressure water discharge nozzle,
The muddy water filtering device has a configuration having a bowl-shaped perforated filtration iron plate and a clogging prevention body provided inside the bowl-shaped perforated filtration iron plate to prevent clogging. apparatus.   The lotus root digging apparatus according to claim 1, wherein the clogging prevention body is constituted by a rotating brush.   2. The lotus root digging apparatus according to claim 1, wherein the clogging prevention body is constituted by a brush, and the bowl-shaped perforated filtration iron plate on the outer periphery of the clogging prevention body is rotated. apparatus.

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