JP3745466B2 - Stirrer capable of colliding upper and lower flow - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In particular, the present invention can effectively prevent the powdered particulate matter such as bentonite from precipitating on the bottom surface of a water tank or the like in a civil engineering / building site, and can make the mixed liquid uniform, The present invention relates to a collision device capable of colliding.
[0002]
[Prior art]
In the civil engineering / construction site described above, for example, when manufacturing a mixture of bentonite and water to be supplied to the excavation hole, the tank is filled with water and bentonite is put into the tank and is installed at the bottom of the tank. The desired stirring device is driven to mix and stir water and bentonite to make a mixed solution, and to prevent the bentonite from precipitating on the bottom of the water tank.
[0003]
That is, the above-described stirring device exclusively forms a downward flow that expands downward and radially by rotating a rotating blade attached to a motor output shaft extending downward. Is changed to an upward flow after colliding with the bottom surface of the water tank, and the bentonite is prevented from being precipitated by flowing upward.
[0004]
[Problems to be solved by the invention]
However, the conventional stirring device described above still has the following problems to be solved.
That is, since the rotary blade is exclusively used to form an upward flow and prevent precipitation, the bentonite is uniformly mixed with water, that is, a sufficient measure is taken for homogenization of the mixed solution. It wasn't.
[0005]
As shown in FIG. 8, as one form of a stirring device that can be used in the field of food and the like, rotary blades 51 and 52 are attached to the front portion of the rotary shaft 50 in two stages at intervals in the vertical direction. There is a stirring device B.
However, also in this stirring device B, since the rotary blades 51 and 52 are both used only for forming the upward flow c and d, the precipitation of the particulate matter can be prevented. Sufficient mixing of the granular material and water, that is, sufficient homogenization of the mixed solution could not be achieved.
[0006]
The present invention has been made in view of such circumstances, effectively preventing the precipitation of the granular material in the mixed solution, and promoting the mixing of the granular material into the mixed solution. The present invention relates to an agitator that can promote uniforming and can collide with an upward and downward flow.
[0007]
[Means for Solving the Problems]
[0008]
[0009]
On the claim 1, wherein along the object, the collision can stirrer downward flow, on the drive motor, on the lower end, to a pair of output shafts extending downward, on each, the lower rotary blade coaxial The upper and lower rotating blades are formed in opposite directions, and when the output shaft is rotated, the upper and lower rotating blades flow radially from the center toward the outside, and the front portions Can generate a downward flow and an upward flow that collide with each other.
[0010]
The stirring device capable of colliding with the upward and downward flow according to claim 2 is the stirring device capable of colliding with the upward and downward flow according to claim 1 , wherein the sizes of the upper and lower rotating blades are made different. .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Subsequently, several embodiments embodying the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.
[0012]
(First embodiment)
With reference to FIGS. 1-3, the structure of the stirring apparatus A which can collide the downward flow which concerns on 1st Embodiment is demonstrated.
As shown in FIG. 1 to FIG. 3, a plurality of support pillars 13 are erected on the support plate 12 made of a disc placed on the bottom surface 11 of the water tank 10 at intervals in the circumferential direction. The motor mounting plate 14 is supported by the upper portions of these columns 13.
A base portion of a saddle-shaped drive motor 15 is installed and fixed at the center of the motor mounting plate 14. The output shaft 16 of the drive motor 15 extends downward and is disposed in a space defined by the support plate 12 and the motor mounting plate 14.
Upper and lower rotary blades 17 and 18 are coaxially attached to the output shaft 16 of the drive motor 15 with an interval in the vertical direction.
The drive motor 15 is preferably a motor that can change the rotation speed, and in particular, can be decelerated. For example, a geared motor or an inverter-controlled motor can be suitably used. That is, when the concentration of the mixed solution is high, a good stirring state can be obtained by increasing the outer diameters of the upper and lower rotating blades 17 and 18 and decreasing the rotation speed.
[0013]
As apparent from FIGS. 2 and 3, the upper and lower rotating blades 17 and 18 are made of propeller blades and are formed in opposite directions. Accordingly, as will be described later, when the output shaft 16 is rotated by driving the drive motor 15, the upper and lower rotary blades 17 and 18 respectively flow radially from the center toward the outside and the front portions collide with each other. A downward flow a and an upward flow b can be generated. The upper and lower rotary blades 17 and 18 are not limited to propeller blades, and can be formed by inclined paddles or the like.
[0014]
In the present embodiment, as shown in FIG. 2, the lower rotating blade 18 has a larger diameter than the upper rotating blade 17, so that when the rotating blades 17 and 18 are rotated, the lower rotating blade 18 is generated by the lower rotating blade 18. The upward flow b has a larger energy than the downward flow a generated by the upper rotating blade 17. This is because, in the case of a granular material having a large specific gravity such as bentonite 23, it is easy to settle or deposit on the bottom surface 11 of the water tank 10 filled with the water 22, so that a strong upward flow b is generated. This is to effectively prevent precipitation and accumulation of the mixture.
However, depending on the specific gravity of the mixture, the sizes of the rotary blades 17 and 18 can be made equal.
[0015]
In the present embodiment, a disk-shaped partition plate 19 is interposed between the upper and lower rotary blades 17 and 18. The outer peripheral portion of the partition plate 19 is connected and fixed to the support column 13 via the socket 20, and an opening 21 through which the output shaft 16 of the drive motor 15 is inserted is formed in the central portion.
[0016]
The space formed by the upper and lower flow b and a around the output shaft 16 when the rotary blades 17 and 18 are rotated by the partition plate 19 to generate the upper and lower flow b and a. Can be prevented from interfering with each other as much as possible.
[0017]
Next, the operation of uniformly mixing the bentonite 23 with the water 22 using the stirring device A having the above-described configuration and capable of colliding with the downward flow will be described with reference to FIG.
First, the water tank 10 is filled with water and the bentonite 23 is charged.
Thereafter, when the drive motor 15 is operated to rotate the output shaft 16, the lower rotary blades 17 and 18 are attached to the output shaft 16 and are formed in opposite directions. , 18, respectively, generates a downward flow a and an upward flow b that flow radially from the center toward the outside and the front portions collide with each other.
[0018]
Thus, in the present embodiment, it is possible to reliably prevent the bentonite 23 from being precipitated or deposited on the bottom surface 11 of the water tank 10 by generating the upward flow b by the lower rotary blade 18, and By causing the leading portions of the downward flows b and a to collide with each other, mixing and stirring of the water 22 and bentonite 23 can be promoted, and the mixture can be made uniform.
[0019]
In addition, since the magnitude | size of the locus | trajectory of the up and down direction flow b and a is determined by the rotational force of the upper and lower rotary blades 17 and 18, FIG. 1 shows three types when the rotational force is changed. Shows the trajectory.
[0020]
FIG. 4 illustrates the configuration of the upper rotary blades 17a and 18a according to the present embodiment, the modified example of the stirring device A capable of colliding with the downward flow, and the lower rotary blades 17a and 18a.
As shown in the figure, in this modification, the upper rotary blade 17a has a larger diameter than the lower rotary blade 18a.
Therefore, when the output shaft 16 is rotated, the downward flow a1 generated by the upper rotary blade 17a has larger energy than the upward flow b1 generated by the lower rotary blade 18a.
[0021]
Such a blade configuration is effective when the specific gravity of the granular material to be mixed with the water 22 is relatively small. That is, when the specific gravity of the mixture is small, the mixture is located above the water 22 in the aquarium 10, so that the downward flow a1 needs to be larger than the upward flow b1 for uniform diffusion. Because.
[0022]
(Second Embodiment)
As shown in FIG. 5, the stirring device A1 that can collide with the downward flow according to the present embodiment is substantially the same as the stirring device A that can collide with the downward flow according to the first embodiment. However, it is different in that the partition plate 19 is removed. Accordingly, the same components are denoted by the same reference numerals.
[0023]
Also in the present embodiment, it is possible to reliably prevent the bentonite 23 from settling or depositing on the bottom surface 11 of the water tank 10 by generating the upward flow b2 by the lower rotary blade 18, and the upward and downward flow. By causing the front parts of b2 and a2 to collide with each other, mixing and stirring of the water 22 and bentonite 23 can be promoted, and the mixture can be made uniform.
Further, since the partition plate 19 is not required, the stirring device A1 capable of colliding with the upward and downward flows can be manufactured at low cost.
[0024]
(Third embodiment)
As shown in FIG. 6, the stirring device A2 that can collide with the downward flow according to the present embodiment is different from the stirring device A1 that can collide with the downward flow according to the second embodiment. The drive motor 15 is supported in a suspended state from above. In addition, the component same as the stirring apparatus A1 which can collide the downward flow which concerns on 2nd Embodiment is shown with the same code | symbol.
As shown in the figure, a horizontal beam 24 is installed between the upper edge portions of the water tank 10 facing each other, and a drive motor 15 is connected to a central portion of the horizontal beam 24 via a suspension frame 25. It is attached in a suspended state.
[0025]
Also in the present embodiment, it is possible to reliably prevent the bentonite 23 from being settled or deposited on the bottom surface 11 of the water tank 10 by generating the upward flow b3 by the lower rotary blade 18, and the upward and downward flow. By causing the front portions of a3 and b3 to collide with each other, mixing and stirring of the water 22 and bentonite 23 can be promoted, and the mixture can be made uniform.
Further, since the horizontal beam type is adopted, the stirring device A2 capable of colliding with the upward and downward flows can be manufactured at low cost.
[0026]
(Fourth embodiment)
As shown in FIG. 7, the stirring device A3 that can collide with the downward flow on the upper side according to the present embodiment has a circumference on the support plate 30 that is a disc placed on the bottom surface 11 of the water tank 10. A plurality of support posts 31 are erected at intervals in the direction, and the motor mounting plate 32 is supported by the upper portions of the support posts 31.
A lower portion of a saddle-shaped drive motor 33 is installed and fixed at the center of the motor mounting plate 32. The output shafts 34 and 35 of the drive motor 33 are extended upward and downward, respectively.
Upper and lower rotary blades 36 and 37 are coaxially attached to output shafts 34 and 35 of the drive motor 33.
[0027]
As is apparent from FIG. 7, the upper and lower rotary blades 36 and 37 are formed in opposite directions. Therefore, when the output shafts 34 and 35 are rotated by driving the drive motor 33, the upper and lower rotary blades 36 and 37 respectively flow radially from the center toward the outside, and the front portions collide with each other. A flow a4 and an upward flow b4 can be generated.
[0028]
Also in the present embodiment, it is possible to reliably prevent the bentonite 23 from being precipitated or deposited on the bottom surface 11 of the water tank 10 by generating the upward flow b4 by the lower rotating blades 37, and the upward and downward flow. By causing the front parts of b4 and a4 to collide with each other, mixing and stirring of the water 22 and bentonite 23 can be promoted, and the mixture can be made uniform.
Further, in the present embodiment, a sufficient distance can be secured between the upper and lower rotary blades 36 and 37, so that the upper flow generated by the upper and lower rotary blades 36 and 37 is between the lower flow b4 and a4. Interference can be reliably prevented.
[0029]
The present invention has been described with reference to some embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and is described in the claims. Other embodiments and modifications that can be considered within the scope of the present invention are also included.
[0030]
【The invention's effect】
[0031]
[0032]
In the stirring device capable of colliding with the upward and downward flow according to claims 1 and 2 , the upper and lower rotary blades are coaxially connected to the pair of output shafts extending upward and downward from the upper and lower ends of the drive motor, respectively. The upper and lower rotating blades are formed in opposite directions, and when the output shaft is rotated, the upper and lower rotating blades flow radially from the center toward the outside and the front parts collide with each other. It is possible to generate a downward flow and an upward flow.
[0033]
In this way, it is possible to reliably prevent the particulate matter from precipitating or accumulating on the bottom surface of the water tank or the like by generating an upward flow with the lower rotating blades, and to prevent the upper and lower flow front portions from mutual. By making it collide, the mixing and stirring of the water and the granular material can be promoted, and the mixture can be made uniform.
In addition, since the space between the upper and lower rotary blades can be sufficient, interference between the upper and lower rotary blades and the downward flow can be surely prevented. The uniformity of the liquid can be improved.
[0034]
In the stirring device capable of colliding with the upper and lower flow according to claim 2 , the sizes of the upper and lower rotary blades are made different.
Therefore, it is possible to make the mixed liquid uniform while taking into consideration the specific gravity of the powder and granular material mixed with the liquid.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a use state of an agitator according to a first embodiment of the present invention that can collide with an upward flow.
FIG. 2 is a front view of the same.
3 is a cross-sectional view taken along the line II of FIG.
FIG. 4 is an explanatory view of a modification example of upper and lower rotary blades.
FIG. 5 is an explanatory diagram of a use state of the agitator according to the second embodiment of the present invention that can collide with the downward flow.
FIG. 6 is an explanatory diagram of a use state of the agitator according to the third embodiment of the present invention that can collide with an upward flow.
FIG. 7 is an explanatory diagram illustrating a use state of the agitator according to the fourth embodiment of the present invention that can collide with an upward flow.
FIG. 8 is an explanatory diagram of a use state of a conventional stirring device.
[Explanation of symbols]
A: Upper stirring device A1 capable of colliding with a downward flow, Upper stirring device A2 capable of colliding with a downward flow, Upper stirring device A3 capable of colliding with a downward flow, Stirring device a capable of colliding with a downward flow Directional flow a1 Downstream flow a2 Downstream flow a3 Downstream flow a4 Downstream flow b Upward flow b1 Upstream flow b2 Upstream flow b3 Upstream flow b4 Upstream flow 10 Water tank 11 Bottom surface 12 Support plate 13 Support column 13 Motor mounting Plate 15 Drive motor 16 Output shaft 17 Upper rotary blade 17a Upper rotary blade 18 Lower rotary blade 18a Lower rotary blade 19 Partition plate 20 Socket 21 Opening 22 Water 23 Bentonite 24 Horizontal beam 25 Suspension frame 30 Support plate 31 Post 32 Motor Mounting plate 33 Drive motor 34 Output shaft 35 Output shaft 36 Upper rotating blade 37 Lower rotating blade

Claims (2)

  The upper and lower rotary vanes are coaxially mounted on a pair of output shafts extending from the upper and lower ends of the drive motor to the upper and lower directions, respectively, and the upper and lower rotary vanes are formed in opposite directions, and the output When the shaft is rotated, the upper and lower rotating blades can generate a downward flow and an upward flow that flow radially from the center to the outside and the front portions collide with each other. A stirrer capable of colliding upper and lower flow. The upper, top according to claim 1, characterized in that with different size of the lower rotary blade, collision capable stirrer downward flow.

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