JP2009279475A - Agitator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stirring device which can adjust the rotation speed of each stirring blade and shear blade individually with a low cost and simple structure, and can be used in a wide range of materials, properties, applications and the like.
SOLUTION: A drive shaft 6 of a drive motor 5 disposed above a stirring tank 3 is suspended to the center of the stirring tank 3, and the drive shaft 6 is concentric and has a fixed gear 7a having a large and small two-stage diameter. 7b is loosely fitted and fixed to the stirring tank 3. Further, a support member 8 is fixed to the lower end portion of the drive shaft 6, and a plurality of driven shafts 10 a and 10 b each having a stirring blade 9 a and a shear blade 9 b at the lower end are rotatably provided at the end edge portion of the support member 8. On the other hand, the driven gears 11a and 11b fixed to the upper ends of the driven shafts 10a and 10b are engaged with the fixed gears 7a and 7b, respectively, and are supported on the support member 8 as the drive shaft 6 rotates. Each driven shaft 10a, 10b is configured to revolve around the drive shaft 6 while rotating at a desired speed.
[Selection] Figure 1

Description

  The present invention relates to a stirrer that stirs and mixes various materials supplied into a pan-shaped stirrer with stirring blades and shear blades, and in particular, simultaneously rotates the stirring blades and shear blades while simultaneously rotating the center of the stirring tank. The present invention relates to an agitation apparatus for performing an agitation / mixing process by revolving around the drive shaft.

  Conventionally, by rotating the stirring blade and shear blade provided in the pan-shaped stirring tank at a predetermined speed and simultaneously revolving around the drive shaft located in the center of the stirring tank, There is an agitation device generally called a planetary turbine mixer or a planetary mixer that effectively increases the mixing capacity. By the way, as a mechanism for rotating the stirring blade and the shear blade of this stirring device, for example, as shown in Patent Documents 1 and 2, a driven gear for rotating the stirring blade and the shear blade is fixed to a fixed gear arranged around the drive shaft. And a configuration in which the driven gear meshed with the fixed gear rotates to rotate the stirring blade or shear blade as the stirring blade or shear blade revolves around the drive shaft. As shown in Documents 3 and 4, there are a plurality of drive motors configured such that each drive motor rotates individually while revolving a stirring blade and a shear blade.

In the former configuration, the rotation speeds of the stirring blade and the shear blade are all the same in the former configuration device, but in the latter configuration device, the rotation speed of each drive motor is adjusted to adjust the rotation speed of the stirring blade and the shear blade. Each speed can be set individually, and stirring / mixing processing according to the type and properties of the material to be supplied or the application is made possible.
No. 3-23301 Japanese Utility Model Publication No. 58-17623 Japanese Patent No. 3924598 Registered Utility Model No. 3035906

  However, if a drive motor is individually provided for the rotation of each stirring blade and shear blade, it will not only increase the cost, but the structure of the apparatus will be complicated, which is disadvantageous in terms of maintenance.

  In view of the above points, the present invention makes it possible to individually adjust the rotation speed of each stirring blade and shear blade with a low-cost and simple structure, and to provide a stirring device that can be used in a wide range of materials, properties, applications, etc. The issue is to provide.

  In order to solve the above-mentioned problems, in the stirring device according to claim 1 according to the present invention, a drive motor is disposed above the pan-shaped stirring tank, and the drive shaft of the driving motor is arranged at the center of the stirring tank. The drive shaft is fixed to the stirring tank by loosely fitting a concentric, large and small two-stage fixed gear on the drive shaft, and a horizontally disposed support member is fixed to the lower end of the drive shaft. A plurality of driven shafts each having a stirring blade and a shear blade at the lower end are rotatably supported at the edge of the support member, and the driven gears fixed to the upper ends of the driven shafts are respectively fixed gears. It is characterized in that each driven shaft pivotally supported by the support member in association with the rotation of the drive shaft revolves around the drive shaft while rotating at a predetermined speed.

  In the stirring device according to claim 2, the driven gear of the driven shaft provided with the stirring blade is interlocked with the small-diameter fixed gear, while the driven gear of the driven shaft provided with the shear blade is interlocked with the large-diameter fixed gear. It is characterized by doing so.

  According to a third aspect of the present invention, the shear blade is characterized in that a plurality of blades are fixed radially to the driven shaft at predetermined intervals in the vertical direction.

  Further, in the stirring device according to claim 4, the shear blade fixes a plurality of ring bodies concentrically and horizontally disposed on the driven shaft in the vertical direction at predetermined intervals, and the outer peripheral edge and / or the inner edge of each ring body. It is characterized in that a plurality of blades are fixed to the periphery at predetermined intervals.

  In the stirring device according to claim 5, the shear blade fixes a plurality of ring bodies concentrically and horizontally arranged on the driven shaft at predetermined intervals in the vertical direction, and cuts the upper and lower edges of each ring body. It is characterized by being formed in a continuous sawtooth shape.

  The stirring device according to claim 6 is characterized in that the ring bodies are fixed in a state where they are inclined at a predetermined angle with respect to the driven shaft.

  Further, the stirring device according to claim 7 is characterized in that the ring bodies are fixed in a state where they are inclined at a predetermined angle alternately with respect to the left and right in a side view with respect to the driven shaft.

  Further, the stirring device according to claim 8 is characterized in that the shear blade is formed by adhering a frame body to the driven shaft and attaching a mesh body of a predetermined mesh size to the inside of the frame body.

  According to the stirrer according to the first aspect of the present invention, the drive motor is disposed above the pan-shaped stirrer tank, the drive shaft of the drive motor is suspended to the center of the stirrer tank, and the drive A fixed gear of concentric and large and small diameter is loosely fitted to the shaft and fixed to the agitation tank, and a support member disposed horizontally is fixed to the lower end of the drive shaft, and is attached to the edge of the support member. Supports a plurality of driven shafts each having a stirring blade and a shear blade at the lower end in a freely rotating manner, while a driven gear fixed to the upper end of each driven shaft is linked with any one of the fixed gears to rotate the drive shaft. Along with this, each driven shaft that is pivotally supported by the support member revolves around the drive shaft while rotating at a predetermined speed, so each stirring blade and shear blade are individually driven at the desired speed by a single drive motor. It is possible to rotate with a low cost, simple configuration There will be a user-friendly stirrer available versatile.

  According to the stirring device of claim 2, the driven gear of the driven shaft provided with the stirring blade is interlocked with the small-diameter fixed gear, while the driven gear of the driven shaft provided with the shear blade is used as the large-diameter fixed gear. Since it is linked, the rotation speed of the shear blade can be adjusted faster than that of the stirring blade, and the material can be effectively sheared, making it a versatile stirring device that can be used for many purposes. it can.

  According to the stirrer described in claim 3, since the shear blade is formed by fixing a plurality of blades radially on the driven shaft at predetermined intervals in the vertical direction, it is possible to effectively shear the material. Therefore, it is possible to provide a user-friendly stirring device that can be used for various purposes.

  According to the stirrer according to claim 4, the shear blade fixes the plurality of ring bodies concentrically and horizontally arranged on the driven shaft at predetermined intervals in the vertical direction, and the outer peripheral edge of each ring body and / or Alternatively, a plurality of blades are fixed to the inner peripheral edge at a predetermined interval, so that the blades arranged at positions where the peripheral speed is relatively fast and effective for shearing can be used for more effective shearing of the material. It can be an easy-to-use stirring device that can be used.

  According to the stirrer according to claim 5, the shear blades fix a plurality of ring bodies concentrically and horizontally arranged on the driven shaft at a predetermined interval in the vertical direction, and at the upper and lower edges of each ring body. Since the cuts are connected and formed into a substantially saw-tooth shape, the saw tooth placed at a position where the peripheral speed is relatively fast and effective for shearing enables more effective shearing of the material, and is versatile. It is possible to provide an easy-to-use stirrer that can be used.

  Further, according to the stirring device of the sixth aspect, since each ring body is fixed in a state inclined at a predetermined angle with respect to the driven shaft, the ring bodies are passed through without being subjected to shearing treatment. As a result, the material can be reduced as much as possible, a more effective shearing treatment of the material is possible, and an easy-to-use stirring device that can be used for many purposes can be obtained.

  According to the stirrer according to claim 7, each ring body is fixed in a state where it is inclined at a predetermined angle alternately left and right with respect to the driven shaft in a side view. As a result, the material passing through the space can be reduced as much as possible, the material can be sheared more effectively, and an easy-to-use stirring device that can be used for various purposes can be obtained.

  According to the stirrer described in claim 8, the shear blade is formed by adhering the frame body to the driven shaft and attaching a mesh body of a predetermined mesh size to the inside of the frame body, so that the shear blade is subjected to shearing treatment. Therefore, the material that passes through without being reduced can be reduced as much as possible, and the material can be sheared more effectively.

  In the agitation apparatus according to the present invention, a drive motor is disposed above the pan-shaped agitation tank, and the drive shaft of the drive motor is suspended to the center of the lower agitation tank. A fixed gear having a concentric and large and small two-stage diameter is loosely fitted to the shaft and fixed to the stirring tank. In addition, a substantially disk-shaped support member disposed horizontally is fixed to the lower end portion of the drive shaft, and a pair of driven shafts provided with a stirring blade and a shear blade at the lower end on the end edge portion of the opposite position of the support member. The driven gears of a predetermined diameter are fixed to the upper ends of the driven shafts, and the driven gears of the driven shafts provided with the stirring blades are engaged with the small-diameter fixed gears. On the other hand, the driven gear of the driven shaft provided with the shear blade is meshed with the large-diameter fixed gear. The stirring blade is formed by fixing a flat stirring blade that is effective for stirring and mixing the material to the lower end of the driven shaft, while the shearing blade is effective for shearing the material around the driven shaft. A large number of thin plate-like shear blades are fixed radially and at regular intervals in the vertical direction.

  When the material supplied into the agitation tank is agitated and mixed with the agitation device having the above-described configuration, the drive shaft is rotated at a predetermined speed by the drive motor, and the agitation blades are rotated together with the support member that rotates accordingly. Revolve the shear blade around the drive shaft. At this time, the driven gear at the upper end engaged with the small-diameter fixed gear rotates with the revolution of the stirring blade, and the stirring blade is rotated at a predetermined speed according to the gear ratio of the small-diameter fixed gear and the driven gear determined as appropriate, for example, While rotating at a speed approximately twice that of the drive shaft, the driven gear at the upper end that is meshed with the large-diameter fixed gear rotates along with the revolution of the shear blade, and the large-diameter fixed gear and the driven gear appropriately determined are rotated. With this gear ratio, the shear blade rotates at a speed higher than that of the stirring blade, for example, approximately 3 to 4 times the speed of the drive shaft. Thus, the material supplied into the agitation tank is repeatedly subjected to the high-speed shearing process by the shearing blade while being subjected to the agitation process by the agitation blade.・ Mixing process is performed.

  In this way, each stirring blade and shear blade can be rotated individually at a desired speed with a single drive motor, and the structure is simple, so the cost is low and the maintenance is excellent. It is possible to provide an easy-to-use stirring device that can be used in a wide range of types, properties, and uses.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 in the figure is a stirring device that can be used for, for example, mixing of various powders or kneading of mortar, concrete, etc., and is a pan-shaped stirring tank supported by a moving wheel 2 3, the upper open portion of the stirring tank 3 is covered with a cover body 4, and a drive motor 5 is placed on the cover body 4. Further, the drive shaft 6 of the drive motor 5 is suspended to the center of the lower stirring tank 3, and the drive shaft 6 is concentric with the drive shaft and has a relatively small diameter and a fixed gear 7a. A relatively large fixed gear 7b is loosely fitted, and both the fixed gears 7a and 7b are fixed to the cover body 4 with bolts.

  A substantially disc-shaped support member 8 disposed horizontally is fixed to the lower end portion of the drive shaft 6, and an agitating blade 9 a and a shear blade 9 b are provided at the lower end of the opposite edge portion of the support member 8. A pair of driven shafts 10a and 10b provided are rotatably supported, and driven gears 11a and 11b having a predetermined diameter are fixed to the upper ends of the driven shafts 10a and 10b, and a stirring blade 9a is provided. The driven gear 11a of the driven shaft 10a is interlocked with the small-diameter fixed gear 7a, while the driven gear 11b of the driven shaft 10b having the shear blade 9b is engaged with the large-diameter fixed gear 7b. ing.

  In this embodiment, the driven gears 11a and 11b and the fixed gears 7a and 7b of the driven shafts 10a and 10b are directly meshed with each other. However, for example, transmission means such as a chain and a belt are used. You may make it interlock | cooperate through.

  The stirring blade 9a has a lower end side of the driven shaft 10a formed in a bifurcated shape as shown in the figure, and each branched lower end portion has a flat plate shape that is effective for stirring and mixing materials. The stirring blade 12 is fixed. The stirring blade 12 is fixed in an inclined state so as to gradually separate from the bottom surface of the stirring tank 3 from the front side to the rear side in the traveling direction of the stirring blade 12, and the stirring blade 12 is stirred on the front side. A flexible member 13 such as urethane rubber is attached so as to slide on the bottom surface of the tank 3 so that the material can be effectively stirred while the material at the bottom of the stirring tank 3 is being scraped up.

  The agitation blade 12 may be appropriately changed in inclination angle and inclination direction according to the type, properties, application, etc. of the material. For example, the agitation blade 12 is agitated from the front side toward the rear side in the traveling direction. It may be fixed in an inclined state so as to gradually approach the bottom of the tank 3, and may be stirred while the material at the bottom of the stirring tank 3 is crushed, or the stirring blade 12 may be fixed vertically. .

  On the other hand, the shear blade 9b is formed by fixing a large number of thin plate-shaped shear blades 14 effective for material shearing around the driven shaft 10b radially and at regular intervals in the vertical direction. The material can be finely sheared by rotating.

  In addition, what is necessary is just to employ | adopt the thing of various structures according to the kind and property of a material, or a use etc. as for the shear blade 9b, for example, as shown in FIG. 4, it arrange | positioned concentrically and horizontally to the driven shaft 10b. If the plurality of ring bodies 15 are fixed in the vertical direction at regular intervals, and if the plurality of shear blades 16 are fixed to the outer peripheral edge of each ring body 15 at regular intervals, the peripheral speed is relatively fast and effective for shearing. The arranged shear blade 16 enables more effective shearing of the material. Here, the shearing blade 16 can be fixed to the inner peripheral edge of each ring body 15 or both the outer peripheral edge and the inner peripheral edge.

  FIG. 5 shows a shear blade 9b formed by fixing each ring body 15 in a state where it is inclined at a predetermined angle, for example, about 5 to 10 degrees, with respect to the driven shaft 10b. Thus, the material that passes between the respective rings 15 without being subjected to the shearing process can be reduced as much as possible, and the material can be more effectively sheared. Further, the inclination direction of each ring body 15 may not be uniform, and may be inclined alternately left and right in a side view as shown in FIG. 6, for example.

  FIG. 7 shows another embodiment of the shear blade 9b. A plurality of ring bodies 17 arranged concentrically and horizontally on the driven shaft 10b are fixed at regular intervals in the vertical direction. A plurality of cuts 18 are continuously provided at the upper and lower edge portions of the material to form a substantially saw-tooth shape, and the saw-tooth teeth rotate at a high speed so that the material can be subjected to a fine shearing process. The ring body 17 may also be fixed to the driven shaft 10b in an inclined state in the same manner as the ring body 15 shown in the embodiments of FIGS.

  FIG. 8 shows another embodiment of the shear blade 9b. A pair of frame bodies 19 are fixed to positions facing the driven shaft 10b, and a mesh body 20 having a predetermined mesh size is pasted inside the frame body 19. The mesh body 20 is rotated at a high speed so that the material can be finely divided and sheared. The mesh size of the mesh body 20 may be adjusted as appropriate according to the type and properties of the material, the application, and the like.

  Reference numeral 21 denotes a presser blade for crushing and crushing the material in the agitation tank 3. The upper end of the arm 22 is fixed to the support member 8, while the plate body 23 arranged horizontally at the lower end of the arm 22. The plate body 23 is fixed in an inclined state so as to gradually approach the bottom surface of the stirring tank 3 from the front side to the rear side in the traveling direction, and the stirring tank is disposed on the front side of the plate body 23. 3 A flexible member 24 such as urethane rubber is attached so as to slide on the bottom surface, and the material at the bottom of the agitation tank 3 is pressed against the bottom surface of the agitation tank 3 by the flexible member 24, and the material is damaged. Such a lump is repeatedly crushed so that it can be crushed finely.

  A scraper 25 scrapes off the material adhering to the inner peripheral wall of the stirring tank 3 and scrapes the material toward the center side of the stirring tank 3, and fixes one end of the arm 26 to the support member 8. A plate body 27 arranged perpendicularly to the other end is fixed, and a flexible member 28 such as urethane rubber is adhered to the front side in the rotational direction of the plate body 27, and the outer peripheral edge of the flexible member 28 is formed. Is configured to slide on the inner peripheral wall of the stirring tank 3.

  When the material supplied into the agitation tank 3 is agitated and mixed in the agitation device 1 having the above-described configuration, for example, a small-diameter fixed gear 7a that is loosely fitted to the drive shaft 6 and a driven gear at the upper end of the agitation blade 9a. The gear ratio between the large diameter fixed gear 7b loosely fitted on the drive shaft 6 and the driven gear 11b at the upper end of the shear blade 9b is set at 4: 1. Keep it. When the drive shaft 6 is rotated at a predetermined speed (a) by the drive motor 5, the stirring blade 9a and the shear blade 9b are rotated around the drive shaft 6 together with the support member 8 rotating along with the support member 8 in the direction of the arrow in FIG. Revolve at speed (a).

  At this time, the agitating blade 9a rotates with the revolution, the driven gear 11a at the upper end meshing with the small-diameter fixed gear 7a rotates, and the agitating blade 9a has a speed (b) approximately twice that of (a) depending on the gear ratio. , The driven blade 11b at the upper end meshing with the large-diameter fixed gear 7b rotates along with the revolution, and the shear blade 9b has a speed approximately four times that of (a) due to the gear ratio. Rotate at (c). Thus, the material supplied into the stirring tank 3 is repeatedly subjected to the high-speed shearing treatment by the shearing blade 9b while being subjected to the stirring treatment by the stirring blade 9a. Less suitable stirring and mixing processes are performed.

  In this way, it is possible to rotate each stirring blade and shear blade individually at the desired speed with the driving force of one drive motor, and the structure is very simple, so it is low cost and easy to maintain. In addition, it is possible to provide an easy-to-use stirrer that can be used in a wide range of materials such as the type, properties, and usage.

  In the present embodiment, the gear ratios of the large and small fixed gears 7a and 7b that are loosely fitted to the drive shaft 6, the driven gear 11a of the stirring blade 9a, and the driven gear 11b of the shear blade 9b are adjusted to drive. The speed ratio of the rotational speed (a) of the shaft 6, the rotation speed (b) of the stirring blade 9a, and the rotation speed (c) of the shear blade 9b is represented by (a) :( b) :( c) = 1: 2. : 4, but is not particularly limited to this, and may be appropriately adjusted according to the type, properties, application, etc. of the material. At this time, when changing the speed ratio, for example, the large and small fixed gears 7a and 7b loosely fitted on the drive shaft 6 and the driven gears 11a and 11b of the stirring blade 9a and the shear blade 9b meshed with the fixed gears are used. The diameters may be changed to different ones, or the fixed gears 7a and 7b and the driven gears 11a and 11b of the stirring blade 9a and the shearing blade 9b may be wound around a chain or a belt without engaging with each other. If interlocked, it is sufficient to change the diameter of any one of the fixed gears 7a, 7b or the driven gears 11a, 11b, and adjustment is easy and preferable.

  In the present embodiment, one stirring blade and one shear blade are provided. However, the present invention is not limited to this, and a suitable number may be provided depending on the type, properties, application, etc. of the material. It ’s fine.

It is a partially notched front view which shows one Example of the stirring apparatus based on this invention. It is a partially cutaway side view of FIG. FIG. 2 is a partially enlarged plan view showing the gear structure and each blade portion of FIG. 1. It is an expansion perspective view which shows another Example of a shearing blade. It is an expansion perspective view which shows another Example of a shearing blade. It is an expansion perspective view which shows another Example of a shearing blade. It is an expansion perspective view which shows another Example of a shearing blade. It is an expansion perspective view which shows another Example of a shearing blade.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Agitation apparatus 3 ... Agitation tank 5 ... Drive motor 6 ... Drive shaft 7a, 7b ... Fixed gear 8 ... Support member 9a ... Agitation blade 9b ... Shear blade 10a, 10b ... Drive shaft 11a, 11b ... Drive gear 13, 24, 28 ... Flexible member 14, 16 ... Blade 15, 17 ... Ring body 18 ... Notch 19 ... Frame body 20 ... Net body 21 ... Holding blade 25 ... Scraper

Claims (8)

  A drive motor is disposed above the pan-shaped stirring tank, and the drive shaft of the drive motor is suspended to the center of the stirring tank, and a concentric, large and small two-stage fixed gear is provided on the drive shaft. A plurality of driven shafts that are loosely fitted and fixed to the agitation tank, and a horizontally-supported support member is fixed to the lower end of the drive shaft, and the lower end of the support member is provided with a stirring blade and a shear blade at the lower end The driven gear fixed to the upper end of each driven shaft is interlocked with any one of the fixed gears, and each driven shaft supported by the support member as the drive shaft rotates is predetermined. A stirrer configured to revolve around a drive shaft while rotating at a speed.   2. The driven gear of a driven shaft provided with a stirring blade is linked with a small-diameter fixed gear, while the driven gear of the driven shaft provided with a shear blade is linked with a large-diameter fixed gear. The stirrer described.   3. The stirring device according to claim 1, wherein the shear blade is formed by fixing a plurality of blades radially on the driven shaft at predetermined intervals in the vertical direction.   The shear blades fix a plurality of ring bodies concentrically and horizontally arranged on the driven shaft at a predetermined interval in the vertical direction, and a plurality of blades fixed to the outer peripheral edge and / or the inner peripheral edge of each ring body at a predetermined interval. The stirrer according to claim 1 or 2, wherein   The shear blade is formed in a substantially saw-tooth shape by fixing a plurality of ring bodies concentrically and horizontally arranged on the driven shaft at predetermined intervals in the vertical direction, and by providing incisions on the upper and lower edges of each ring body. The stirrer according to claim 1 or 2, wherein   The stirring device according to claim 4 or 5, wherein each ring body is fixed in a state of being inclined at a predetermined angle with respect to the driven shaft.   6. The stirring device according to claim 4, wherein each ring body is fixed in a state where the ring bodies are alternately inclined at a predetermined angle with respect to the driven shaft in a side view.   The stirring device according to claim 1 or 2, wherein the shear blade is formed by fixing a frame body to the driven shaft and attaching a mesh body having a predetermined mesh size to the inside of the frame body.

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