JP2013233475A - Stirring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stirring device performing an efficient stir regardless of the viscosity of an object to be stirred.SOLUTION: A stirring device 1 includes: a rotor 10 rotating with C as the center; suction ports 12 formed in the surface of the rotor 10; discharge ports 14 formed in positions on the outer sides in the centrifugal direction from the rotational axis C rather than the suction ports 12 in the surface of the rotor 10; flowing-through passages 16 each connecting the suction port 12 and the discharge port 14; and relative moving bodies 20 disposed at a prescribed gap from the surface of the rotor 10, and moving relatively to the surface of the rotor 10.

Description

  The present invention relates to a stirring device for stirring, mixing, dispersing, and the like of liquids and other various fluids.

  Conventionally, for example, when two or more kinds of fluids are mixed or various powders added to the fluid are uniformly dispersed, a stirring device that rotates an impeller in the fluid is used. This impeller is generally provided with a propeller blade and a turbine blade, and agitation is performed by flowing a fluid by rotating.

  In a conventional stirring apparatus using an impeller, a large amount of power is required due to the large resistance that the impeller receives in the object to be stirred, and only a uniform flow in the axial direction or the centrifugal direction is generated. In general, the stirring efficiency is low. In particular, when the viscosity of the object to be stirred is high, since the impeller receives a large resistance due to the viscosity, sufficient stirring cannot be performed unless the impeller is further enlarged. There was a shortage.

  In order to solve such a problem, a stirrer (for example, see Patent Document 1) whose strength is improved by devising the shape of the impeller has been proposed.

JP 2010-240612A

  However, in the stirring device described in Patent Document 1, although the strength of the impeller is increased, the stirring efficiency is still low although it requires a lot of power to drive the impeller. . In addition, when the viscosity of the object to be stirred is very high, it may be difficult to even rotate the impeller in the object to be stirred.

  In view of such a situation, the present invention is intended to provide a stirring device capable of performing efficient stirring regardless of the viscosity of an object to be stirred.

  (1) The present invention relates to a rotating body that rotates about a rotating shaft, a suction port provided on a surface of the rotating body, and a position on the surface of the rotating body that is located on the outer side in the centrifugal direction from the rotating shaft with respect to the suction port. A discharge port provided on the surface, a flow passage connecting the suction port and the discharge port, a relative moving body that is disposed with a predetermined gap from the surface of the rotating body and moves relative to the surface of the rotating body, And a stirring device.

  (2) The present invention is also characterized in that the relative moving body is configured to pass through at least one of a position facing the suction port and a position facing the discharge port during the relative movement. It is a stirring apparatus as described in said (1).

  (3) The present invention is also configured such that the relative moving body passes through a position facing the suction port during the relative movement and gradually moves away from the surface of the rotating body. The stirrer according to (2) above, which has an inclined surface that is inclined so as to be positioned in front of the moving direction.

  (4) The present invention is also configured such that the relative moving body passes through a position facing the discharge port during the relative movement, and gradually moves away from the surface of the rotating body. The stirring device according to (2) above, which has an inclined surface that is inclined so as to be located on the rear side in the moving direction.

  According to the stirring device of the present invention, it is possible to achieve an excellent effect that efficient stirring can be performed regardless of the viscosity of the object to be stirred.

(A) It is the front view which showed an example of the stirring apparatus which concerns on embodiment of this invention. (B) It is the sectional view on the AA line of the figure (a). (C) It is a bottom view of a stirring apparatus. It is the figure which showed the action | operation of the rotary body and relative moving body in (a) and (b) stirring apparatus. (A) It is sectional drawing which showed the inflow promotion to the suction inlet by a relative moving body. (B) It is sectional drawing which showed the outflow promotion from the discharge outlet by a relative moving body. It is the figure which showed the usage example of (a) and (b) stirring apparatus. It is the figure which showed the example of the other form of (a)-(c) stirring apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  First, the structure of the stirring apparatus 1 according to this embodiment will be described. FIG. 1 (a) is a front view showing an example of the stirring device 1, FIG. 1 (b) is a cross-sectional view taken along the line AA of FIG. 1 (a), and FIG. 2 is a bottom view of the device 1. FIG. As shown in these drawings, the stirring device 1 includes a rotating body 10 that rotates, a relative moving body 20 that is disposed in the vicinity of the rotating body 10, a drive device 30 that rotationally drives the rotating body 10, and a rotation. And a drive shaft 40 that connects the body 10 and the drive device 30.

  In the stirring device 1, the rotating body 10 is connected to the tip of the drive shaft 40, and a substantially frame-like relative moving body 20 is disposed so as to surround the rotating body 10. The relative moving body 20 is connected to a distal end portion of a cylindrical support member 50 that is coaxially disposed so as to cover the outer periphery of the drive shaft 40, and a base end portion of the support member 50 is a casing of the drive device 30. It is being fixed to the bracket 60 fixed to. That is, in this embodiment, the rotating body 10 is driven and rotated by the driving device 30 and the relative moving body 20 is fixed so as not to rotate, and the rotating body 10 and the relative moving body 20 arranged close to each other. Move relative to each other (relative rotation).

  The rotating body 10 is configured in a substantially cylindrical shape, and the surface of the rotating body 10 is configured by a substantially circular upper surface 10a and a bottom surface 10b, and a side surface 10c which is an outer peripheral surface. The material which comprises the rotary body 10 is not specifically limited, For example, an appropriate material according to use conditions, such as a metal, ceramics, resin, rubber | gum, wood, etc., is employable.

  A plurality of suction ports 12 and a plurality of discharge ports 14 are provided on the surface of the rotator 10, and a flow passage 16 formed so as to connect the suction ports 12 and the discharge ports 14 is provided inside the rotator 10. It has been. A connecting portion 18 to which the drive shaft 40 is connected is provided at the center of the upper surface 10a of the rotating body 10. Accordingly, the rotating body 10 is configured to be driven by the driving device 30 and rotate about the central axis C as a rotation axis. In addition, the connection method of the drive shaft 40 and the connection part 18 may be any known method such as a screw or engagement.

  The suction port 12 is provided on the bottom surface 10 b (that is, the distal end portion of the rotating body 10) on the opposite side of the connection portion 18. In the present embodiment, the four suction ports 12 are arranged at equal intervals on a circumference centered on the central axis C, and are formed in the same direction as the central axis C. The discharge port 14 is provided on the upper surface 10a side of the side surface 10c. In the present embodiment, the four discharge ports 14 are positioned on the outer side in the radial direction (centrifugal direction) of the rotating body 10 with respect to the respective suction ports 12 (positions separated from the central axis C in the direction perpendicular to the central axis C). Respectively. Further, the discharge port 14 is formed in a direction orthogonal to the central axis C.

  The flow passage 16 is formed as a tunnel-like passage that connects one suction port 12 and one discharge port 14. Therefore, four flow passages 16 are formed inside the rotating body 10. Each of the flow passages 16 is formed so as to go straight from the suction port 12 along the direction of the central axis C, then bend at a right angle, and go straight in the centrifugal direction of the rotating body 10 to reach the discharge port 14. That is, the flow path 16 of this embodiment is comprised from the axial direction part 16a of the central axis C direction, and the centrifugal direction part 16b of the centrifugal direction.

  In the present embodiment, the suction port 12 and the discharge port 14 are formed in a circular shape, but the shape (cross-sectional shape) of the suction port 12 and the discharge port 14 is not particularly limited. Other shapes such as a polygonal shape may be used. In addition, the cross-sectional shape of the flow passage 16 is not particularly limited, and can be configured in an appropriate shape according to the shape and position of the suction port 12 and the discharge port 14 or the processing method.

  Further, in the present embodiment, the flow passage 16 is configured in an L shape that is bent at a substantially right angle for ease of processing, but the flow passage 16 may be configured as a smoothly curved curved passage. However, the suction port 12 and the discharge port 14 may be connected linearly. In the present embodiment, the strength of the rotating body 10 other than the flow passage 16 is made solid by configuring the portion other than the flow passage 16, but the portion other than the flow passage 16 of the rotating body 10 is formed in a hollow shape. You may do it.

  The relative moving body 20 is a member configured in a rectangular frame shape surrounding the rotating body 10, and includes a first relative moving portion 22 extending in the centrifugal direction from the central axis C along the bottom surface 10b, The two second relative moving parts 24 extending in the direction of the central axis C along the side surface 10c from both ends of the relative moving parts 22 and the upper surface side end parts of the two second relative moving parts 24 And a third relative movement portion 26 that extends in the centripetal direction along 10 c and is connected to the support member 50.

  Accordingly, in the relative moving body 20, as the rotating body 10 rotates, the first relative moving portion 22 moves relative to the bottom surface 10b (relative rotation), and the second relative moving portion 24 moves relative to the side surface 10c. Relative movement (relative rotation) is performed, and the third relative movement unit 26 is configured to move relative to the upper surface 10a. That is, in the present embodiment, the relative moving body 20 is configured to move relative to all the surfaces of the rotating body 10.

  Further, in the present embodiment, when the rotating body 10 rotates, all the suction ports 12 and the discharge ports 14 periodically face the relative moving body 20. In other words, in this embodiment, when the rotating body 10 and the relative moving body 20 move relative to each other as the rotating body 10 rotates, the relative moving body 20 periodically passes through the position facing each of the suction ports 12. At the same time, it passes through the position facing each discharge port 14 periodically. Specifically, during relative movement, the first relative movement unit 22 periodically passes through each of the positions facing the four suction ports 12, and the second relative movement unit 24 includes the four discharge ports 14. It passes through each of the positions opposite to each other periodically.

  A predetermined gap is provided between the surface of the relative moving body 20 and the rotating body 10. Specifically, a gap having a dimension Gb is provided between the first relative movement unit 22 and the bottom surface 10b, and a gap having a dimension Gc is provided between the second relative movement unit 24 and the side surface 10c. A gap with a dimension Ga is provided between the relative movement part 26 and the upper surface 10a. Although details will be described later, in the stirring device 1 of the present embodiment, the rotating body 10 and the relative moving body 20 are moved relative to each other, whereby a shearing force is applied to the fluid that is the stirring target (or the contaminants included in the stirring target). As well as generating vortices and turbulent flow, the stirring efficiency is improved.

  Accordingly, the dimensions Ga to Gc of these gaps are not particularly limited, and can be appropriately set according to various conditions such as the use of the stirring device 1 and the properties (viscosity, etc.) of the object to be stirred. Further, the gap dimensions Ga to Gc may be set to the same dimension or different dimensions. Further, an adjustment mechanism that can adjust the gap dimensions Ga to Gc may be provided in the relative moving body 20.

  In addition, the shape of the relative moving body 20 is not specifically limited, Various shapes can be employ | adopted according to various conditions, such as a use of the stirring apparatus 1 and the property (viscosity etc.) of a to-be-stirred object. In other words, the relative moving body 20 may be any member as long as it is arranged close to the rotating body 10 with a predetermined gap and moves relative to the rotating body 10, and by adjusting the shape of the relative moving body 20. The stirring ability can be adjusted. A plurality of relative moving bodies 20 may be provided for one rotating body 10. For example, two frame-like relative moving bodies 20 that intersect each other may be provided, or the first to third relative moving portions 22 to 26 may be configured separately.

  Moreover, the material which comprises the relative displacement body 20 is not specifically limited, Like the rotary body 10, for example, a suitable material according to use conditions, such as a metal, ceramics, resin, rubber | gum, wood, etc. is employ | adopted. be able to. Further, the rotating body 10 and the relative moving body 20 may be made of the same material, or may be made of different materials.

  Further, in the present embodiment, the relative moving body 20 is supported by the driving device 30. However, the relative moving body is supported by other members such as a container for storing an object to be stirred and a mount on which the driving device 30 is installed. 20 may be supported. In the present embodiment, the support member 50 is also used as a cover for the drive shaft 40, but it goes without saying that the configuration of the support member 50 is not limited to this.

  In the present embodiment, the driving device 30 is constituted by a motor. The driving device 30 rotates the rotating body 10 via the driving shaft 40 and rotates it around the central axis C. In the present embodiment, the drive device 30 is configured to directly drive the drive shaft 40. However, the drive device 30 rotationally drives the drive shaft 40 via a transmission mechanism such as a gear, a chain, and a sprocket. You may comprise. The drive device 30 may be of any existing type such as an electric motor or an air motor.

  Next, the operation of the rotating body 10 and the relative moving body 20 in the stirring device 1 will be described. FIGS. 2A and 2B are views showing the operation of the rotating body 10 and the relative moving body 20 in the stirring device 1. 2A is a sectional view taken along line AA in FIG. 1A, and FIG. 2B is a front view.

  The rotating body 10 is driven by the driving device 30 and rotates about the central axis C in the object to be stirred that is a fluid, thereby stirring the object to be stirred. When the rotating body 10 is immersed in the fluid and rotated, the fluid that has entered the flow path 16 also rotates together with the rotating body 10. Then, a centrifugal force acts on the fluid in the flow passage 16, and the fluid in the flow passage 16 flows toward the outside in the radial direction of the rotating body 10 as shown in FIGS. 2 (a) and (b). Since the discharge port 14 is provided on the radially outer side of the rotator 10 with respect to the suction port 12, a centrifugal force stronger than that of the suction port 12 acts on the discharge port 14.

  Accordingly, the fluid flows from the suction port 12 toward the discharge port 14 as long as the rotating body 10 is rotating. That is, the fluid in the flow passage 16 is ejected from the discharge port 14, and the external fluid is sucked into the flow passage 16 from the suction port 12. As a result, in the fluid around the rotator 10, a flow spreading radially from the side surface 10 c of the rotator 10 having the discharge port 14 and a flow toward the suction port 12 are generated. The flow toward the suction port 12 becomes a swirl flow by the rotation of the suction port 12.

  Further, when the rotating body 10 is immersed in the fluid and rotated, the fluid near the surface of the rotating body 10 (that is, the upper surface 10a, the bottom surface 10b, and the side surface 10c) rotates together with the rotating body 10 due to the influence of viscosity. . A part of the fluid that moves around the rotating body 10 due to the viscosity enters between the rotating body 10 and the relative moving body 20 and receives a shearing force, and a part of the fluid collides with the relative moving body 20 to cause vortex and turbulent flow. generate. Moreover, since negative pressure is generated by damming on the opposite side of the surface where the fluid collides, fluid flows in from the outside to generate vortex and turbulent flow. The vortex and turbulent flow generated in this way are combined with the flow to the suction port 12 and the flow from the discharge port 14 to promote these flows, and a more complicated flow is generated around the rotating body 10. Will occur in the fluid.

  Thus, in this embodiment, the vortex and turbulent flow by the relative moving body 20 are caused to act synergistically on the inflow of the fluid to the suction port 12 and the outflow of the fluid from the discharge port 14, thereby A complex flow (turbulent flow) is generated in the surrounding fluid, and an unprecedented stirring ability can be obtained. Further, since kinetic energy is given to the fluid mainly by the centrifugal force in the flow passage 16, even when the viscosity of the fluid is high, efficient stirring can be performed with less power than the conventional stirring device. It is possible.

  Furthermore, in the present embodiment, by moving the rotating body 10 and the relative moving body 20 relative to each other, the foreign matter attached to the surface of the rotating body 10 (that is, the upper surface 10a, the bottom surface 10b, and the side surface 10c) is scraped off or relatively moved. The foreign matter can be separated from the surface of the rotating body 10 by vortices and turbulence generated in the vicinity of the body 20. Further, when the relative movement is performed, the relative moving body 20 is allowed to pass through a position facing the suction port 12 and the discharge port 14, so that the foreign matter adhering to the vicinity of the suction port 12 or the discharge port 14 is, for example, sucked into the suction port 12 or the discharge port. Cutting (shearing) between the edge of the outlet 14 and the relative moving body 20 enables periodic removal.

  In the present embodiment, it is also possible to promote the inflow of fluid into the suction port 12 and the outflow of fluid from the discharge port 14 by providing the relative moving body 20 with an inclined surface. FIG. 3A is a cross-sectional view showing the inflow promotion to the suction port 12 by the relative moving body 20, and FIG. 3B is a cross section showing the outflow promotion from the discharge port 14 by the relative moving body 20. FIG. In these drawings, the moving (rotating) direction of the rotating body 10 is indicated by a solid line arrow, and the relative moving (relative rotating) direction of the relative moving body 20 is indicated by a broken line arrow.

  In the example shown in FIG. 5A, the first relative moving portion 22 of the relative moving body 20 is disposed to be inclined with respect to the bottom surface 10b of the rotating body 10, so that the front inclined surface is on the front side in the relative moving direction. 22a is provided, and a rear inclined surface 22b is provided on the rear side in the relative movement direction. Further, both the front side inclined surface 22a and the rear side inclined surface 22b are inclined so as to be gradually located on the front side in the relative movement direction as they are separated from the bottom surface 10b.

  As shown in FIG. 6A, by providing the first relative movement portion 22 with the inclined front side inclined surface 22a, the position where the first relative movement portion 22 faces the inlet 12 is set. When passing, it becomes possible to generate a vortex flow toward the suction port 12, so that the inflow of the fluid into the suction port 12 can be promoted. That is, the fluid can be pushed into the suction port 12 by causing the first relative movement unit 22 to function in the same manner as a squeegee in a cream solder printer.

  In addition, by providing the rear side inclined surface 22b inclined in this way in the first relative movement unit 22, it becomes possible to smoothly introduce the fluid from the outside to the rear side of the first relative movement unit 22. Also, the flow of the fluid into the suction port 12 can be promoted also on the rear side of the first relative moving portion 22.

  In the example shown in FIG. 5B, the second relative moving portion 24 of the relative moving body 20 is disposed to be inclined with respect to the side surface 10c of the rotating body 10, so that the front inclined surface is on the front side in the relative moving direction. 24a is provided, and a rear inclined surface 24b is provided on the rear side in the relative movement direction. Further, both the front-side inclined surface 24a and the rear-side inclined surface 24b are inclined so as to be gradually located on the rear side in the relative movement direction as the distance from the side surface 10c increases.

  As shown in FIG. 5B, by providing the front side inclined surface 24a inclined in this way in the second relative movement part 24, the position where the second relative movement part 24 faces the discharge port 14 is determined. When passing, the fluid in the vicinity of the discharge port 14 can be scraped out (pushed away) by the wedge effect, so that the outflow of the fluid from the discharge port 14 can be promoted. In addition, by providing the rear side inclined surface 24b inclined in this way in the second relative moving portion 24, it becomes possible to suck out the fluid from the discharge port 14 by the negative pressure due to the damming, and therefore the fluid discharge port 14 Can be further promoted.

  Thus, by providing the front side inclined surfaces 22a and 24a and the rear side inclined surfaces 22b and 24b on the relative moving body 20, the inflow of fluid to the suction port 12 and the outflow of fluid from the discharge port 14 are promoted. Is possible. That is, according to the present embodiment, even a fluid having a very high viscosity can be actively flowed and sufficiently stirred.

  Only one of the front inclined surfaces 22a and 24a and the rear inclined surfaces 22b and 24b may be provided, or one of the first relative moving unit 22 and the second relative moving unit 24. Any one of the inclined surfaces 22a, 22b, 24a, and 24b may be provided only on. Further, the inclined surfaces 22a, 22b, 24a, 24b may all be formed at the same inclination angle, or may be formed at different inclination angles.

  FIGS. 4A and 4B are diagrams showing an example of use of the stirring device 1. As shown in these drawings, the stirring device 1 is used in a state in which the rotating body 10 and the relative moving body 20 are immersed in an object to be stirred 80 that is a fluid accommodated in a container 70. At this time, the stirring device 1 may be fixed to the container 80 or an appropriate mount, or may be held by the user.

  By rotating the to-be-stirred object 80 rotating body 10, the flow which spreads radially from the side surface 10c of the rotating body 10 and the flow toward the front end (bottom surface 10b) of the rotating body 10 are generated as described above. Further, a vortex or turbulent flow is generated in the vicinity of the relative moving body 20. As a result, as shown in FIGS. 4A and 4B, a complicated circulation flow is generated in the stirring object 80, and the stirring object 80 is sufficiently stirred by this circulation flow. Further, by bringing the tip of the rotating body 10 closer to the bottom of the container 40, the staying material can be sucked up from the suction port 12 and ejected from the discharge port 14, and the staying matter can be sufficiently dispersed in the stirred object 80.

  Since the rotating body 10 of the present embodiment generates a flow toward the suction port 12 and a flow from the discharge port 14 mainly by centrifugal force in the flow passage 16, it is smaller in size and less in resistance than the conventional impeller. However, it is possible to generate a strong circulating flow in the stirring object 80. In addition, by arranging the relative moving body 20 in the vicinity of the rotating body 10, it is possible to generate an appropriate vortex or turbulent flow in the vicinity of the relative moving body 20 without rotating the relative moving body 20. ing. Furthermore, by providing the inclined surfaces 22a, 22b, 24a, and 24b on the relative moving body 20, it is possible to sufficiently flow the stirring target 80 even when the stirring target 80 has a very high viscosity. It has become. That is, according to the stirring device 1 of the present embodiment, efficient stirring can be performed with less power regardless of the viscosity of the object 80 to be stirred.

  Depending on the viscosity of the object 80 to be stirred, the relative moving body 20 may be rotated at a speed different from that of the rotating body 10. In this case, the relative moving body 20 may be rotationally driven by the driving device 30 or a dedicated driving device, or the relative moving body 30 is rotatably attached to the support member 50 and is rotated by the flow of the stirring object 80. You may do it.

  Next, the other form of the stirring apparatus 1 is demonstrated. FIGS. 5A to 5C are diagrams showing examples of other forms of the stirring device 1. FIG. 4A is a front view showing an example in which the rotating body 10 is configured in a substantially bullet shape. Thus, by making the shape of the rotating body 10 such that the thickness in the direction of the central axis C gradually decreases toward the outside in the radial direction, the flow in the vicinity of the bottom surface 10b of the rotating body 10 flows radially from the side surface 10c. Can be smoothly merged. Further, by forming the bottom surface 10b in such a shape, a part of the flow toward the tip of the rotator 10 is smoothly flowed to the side surface 10c along the bottom surface 10b, and merges with the flow spreading radially from the side surface 10c. It becomes possible to make it. As a result, the stirring ability can be improved.

  FIG. 2B is a partial cross-sectional view showing an example in which the rotating body 10 is configured in a hexagonal column shape. As described above, by providing irregularities on the side surface 10 c of the rotating body 10, the dimension of the gap between the side surface 10 c and the relative moving body 20 (second relative moving portion 24) is changed as the rotating body 10 rotates. Can do. More efficient stirring can be performed by doing in this way depending on the use of the stirring device 1 and the properties of the object to be stirred. Needless to say, an uneven shape may be provided on the top surface 10a or the bottom surface 10b of the rotating body 10.

  Thus, the shape of the rotating body 10 is not particularly limited, and various shapes can be adopted according to the use of the stirring device 1 and the properties of the object to be stirred.

  FIG. 3C is a front view showing an example in which the relative moving body 20 is partially brought close to the rotating body 10. In this example, the relative moving body 20 is fixed to another member via the support member 50, and the first relative moving portion 22 and the second relative moving portion 24 are each configured in a substantially L shape, Only the portions facing the suction port 12 and the discharge port 14 are brought close to each other. In other words, the size of the gap between the bottom surface 10b of the rotating body 10 and the first relative moving portion 22 is made different according to the site of the first relative moving portion 22, and the side surface 10c of the rotating body 10 and the second relative movement. The size of the gap of the portion 24 is made different depending on the portion of the second relative movement portion 24. Further, in this example, the third relative movement unit 26 is omitted.

  By doing in this way, since it becomes possible to change effects, such as generation | occurrence | production of the vortex | eddy_current by the relative moving body 20, according to the site | part of the relative moving body 20, the use of the stirring apparatus 1, the property of a to-be-stirred object, etc. Depending on the case, more efficient stirring can be performed. Moreover, since the load added to the relative moving body 20 can be adjusted, durability and versatility of the stirring apparatus 1 can be improved.

  Although not shown, a shaft flow passage is provided inside the drive shaft 40 and the outlet of this shaft flow passage is connected to the flow passage 16 or connected to the surface of the rotating body 10 so that the outlet is in the object to be stirred. You may make it open. By providing the shaft portion flow passage in this way, other substances such as liquid, gas, and powder outside can be introduced into the object to be stirred through the shaft portion flow passage. In this case, for example, the inlet of the shaft flow passage may be connected to another pump, a compressor, or the like, and other liquid or gas may be pumped. Other liquids or gases may be sucked by pressure. In addition, for example, by opening the inlet of the shaft portion flow passage in the object to be stirred, the object to be stirred at another place can be supplied into the flow passage 16 or around the rotating body 10. In this case, it goes without saying that the relative moving body 20 may pass through the position facing the outlet of the shaft flow passage during the relative movement.

  As described above, the stirring device 1 according to the present embodiment includes the rotating body 10 that rotates about the rotation axis (center axis C), the suction port 12 provided on the surface of the rotating body 10, and the rotating body 10. A discharge port 14 provided at a position on the outer side in the centrifugal direction from the rotation axis (center axis C) than the suction port 12 on the surface, a flow passage 16 connecting the suction port 12 and the discharge port 14, and a predetermined surface from the surface of the rotating body 10. And a relative moving body 20 that is disposed with a gap and moves relative to the surface of the rotating body 10.

  With such a configuration, efficient stirring can be performed regardless of the viscosity of the object to be stirred. That is, by relatively moving the rotating body 10 and the relative moving body 20, it is possible to generate a complicated flow in the object to be stirred with a small amount of power, so even when the viscosity of the object to be stirred is high It can be made to flow sufficiently and efficient stirring can be performed.

  The relative moving body 20 is configured to pass through at least one of a position facing the suction port 12 and a position facing the discharge port 14 during the relative movement. In this way, the relative movement of the relative moving body 20 promotes the inflow of the object to be stirred into the suction port 12 or the outflow from the discharge port 14, or the flow in the vicinity of the suction port 12 or the vicinity of the discharge port 14. Since it becomes possible to disturb appropriately, efficient stirring can be performed.

  The relative moving body 20 is configured to pass through a position facing the suction port 12 during the relative movement, and gradually moves toward the front side in the relative moving direction of the relative moving body 20 as the distance from the surface of the rotating body 10 increases. You may have the inclined surfaces 22a and 22b inclined so that it may be located. By doing so, even when the viscosity of the object to be stirred is very high, the inclined surfaces 22a and 22b promote the inflow of the object to be stirred into the suction port 12, and a sufficient flow in the object to be stirred. Can be generated.

  Further, the relative moving body 20 is configured to pass through a position facing the discharge port 14 during the relative movement, and gradually moves toward the rear side in the relative moving direction of the relative moving body 20 as the distance from the surface of the rotating body 10 increases. You may have the inclined surfaces 24a and 24b inclined so that it may be located. By doing so, even when the viscosity of the object to be stirred is very high, the inclined surfaces 24a and 24b promote the outflow of the object to be stirred from the discharge port 14 and flow sufficiently in the object to be stirred. Can be generated.

  In the present embodiment, the suction port 12 is provided in the direction of the central axis C, and the discharge port 14 is provided in the direction orthogonal to the central axis C. However, the present invention is limited to this. Instead, the suction port 12 and the discharge port 14 may be provided in other directions. For example, the discharge port 14 may be provided on the upper surface 10 a of the rotating body 10.

  Further, in the present embodiment, an example in which one suction port 12 and one discharge port 14 are connected by the flow passage 16 is shown, but the present invention is not limited to this, and one suction port 12 is provided. The plurality of discharge ports 14 may be connected, or the plurality of suction ports 12 and one discharge port 14 may be connected.

  Further, in the present embodiment, an example in which the relative moving body 20 is configured to pass both the position facing the suction port 12 and the position facing the discharge port 14 during the relative movement is shown. However, the present invention is not limited to this, and only one of the position facing the suction port 12 and the position facing the discharge port 14 during relative movement depends on the application of the stirring device 1 and the properties of the object to be stirred. The relative moving body 20 may be configured to pass, or the relative moving body 20 may be configured not to pass both the position facing the suction port 12 and the position facing the discharge port 14 during the relative movement. May be.

  As mentioned above, although embodiment of this invention was described, the stirring apparatus of this invention is not limited to above-described embodiment, In the range which does not deviate from the summary of this invention, it can add various changes. Of course.

  The stirrer of the present invention can be used in fields such as stirring, dispersion and mixing of various fluids.

DESCRIPTION OF SYMBOLS 1 Stirrer 10 Rotating body 12 Intake port 14 Discharge port 16 Flow path 20 Relative moving body 22a, 24a Front side inclined surface 22b, 24b Rear side inclined surface C Center axis

Claims (4)

A rotating body that rotates about a rotation axis;
A suction port provided on the surface of the rotating body;
A discharge port provided at a position on the outer side in the centrifugal direction from the rotation shaft with respect to the suction port on the surface of the rotating body;
A flow path connecting the suction port and the discharge port;
A relative moving body that is disposed with a predetermined gap from the surface of the rotating body and moves relative to the surface of the rotating body,
Stirring device. The relative moving body is configured to pass through at least one of a position facing the suction port and a position facing the discharge port during relative movement,
The stirrer according to claim 1. The relative moving body is configured to pass through a position facing the suction port during the relative movement, and is gradually positioned on the front side in the relative moving direction of the relative moving body as the distance from the surface of the rotating body increases. It has an inclined surface that is inclined as follows,
The stirring device according to claim 2. The relative moving body is configured to pass through a position facing the discharge port during the relative movement, and is gradually positioned on the rear side in the relative moving direction of the relative moving body as the distance from the surface of the rotating body increases. It has an inclined surface that is inclined as follows,
The stirring device according to claim 2.

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