JP2019155337A - Rotary shaft cooling structure of agitation device - Google Patents

Abstract

To provide a rotary shaft cooling structure of an agitation device capable of reducing a replacement frequency of a bearing and a seal member, and capable of compactification of the whole facility.SOLUTION: A rotary shaft cooling structure 1 of an agitation device comprises: a vessel 10 for storing liquid; an agitation body 14 arranged in the vessel 10 and agitating the liquid; a bearing 15 arranged on the outside of the vessel 10; a rotary shaft 16 inserted into a through-hole 10a possessed by the vessel 10, supporting a base end side part by the bearing 15 on the outside of the vessel 10, fixing a tip side part to the agitation body 14 in the vessel 10 and integrally rotating with the agitation body 14; and a seal member 17 for blocking up a clearance between the through-hole 10a and the rotary shaft 16. The rotary shaft 16 has a cylindrical hollow structure having a suction port 16a and a discharge port 16b on the base end side, and comprises a regulation plate (a guide member) 160 for guiding fluid flowing in from the suction port 16a to the tip side by rotating and guiding fluid guided to the tip side to the discharge port 16b.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a rotating shaft cooling structure of a stirring device.

  Conventionally, in a stirring device that mixes a plurality of liquids, durability and accuracy of each component are required when operating for a long time. Patent Document 1 discloses a structure in which the periphery of the shaft and the bearing are indirectly cooled by sucking outside air by rotation of a fan integrally attached in the circumferential direction of the shaft for stirring the substance. Yes. Patent Document 2 discloses a structure in which a guide tube is provided in a shaft for stirring and a shaft and a bearing are cooled by forcibly supplying a refrigerant therein.

JP 2001-314744 A Japanese Patent No. 3604181

  However, in the structure of Patent Document 1, indirect and insufficient cooling results in wear and damage to the bearings and seal members, which in turn increases replacement work and replacement costs. In particular, the operation is interrupted when linked to production, and the production is affected. In the structure of Patent Document 2, the shaft and the bearing are directly cooled. However, a separate facility for supplying the refrigerant is required, resulting in an increase in the size of the entire facility and cost burden.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rotating shaft cooling structure for an agitator capable of reducing the replacement frequency of bearings and seal members and making the entire equipment compact. .

  (1) A rotating shaft cooling structure (for example, rotating shaft cooling structures 1, 2, and 3 described later) of a stirring device (for example, a stirring device 5 described later) according to the present invention is a container (for example, described later) that contains a liquid. A container 10), a stirring body (for example, a stirring body 14 to be described later) disposed in the container and stirring the liquid, and a bearing (for example, a bearing 15 to be described later) disposed outside the container; The container is inserted into a through-hole (for example, a through-hole 10a described later), a proximal end portion is supported by the bearing outside the container, and a distal end portion is supported by the stirrer in the container. A seal member (for example, a seal member 17 to be described later) that closes a clearance between a rotation shaft (for example, a later-described rotation shaft 16, 26, and 36) that is fixed and rotates integrally with the agitator and the through hole and the rotation shaft. ) And a stirring device equipped with In the shaft cooling structure, the rotating shaft has a suction port (for example, suction ports 16a, 26a, and 36a described later) and a discharge port (for example, discharge ports 16b, 26b, and 36b described later) on a base end side. A guide member (for example, regulation plates 160 and 260 described later) that has a hollow structure and guides the fluid that flows in from the suction port to the distal end side by rotating and guides the fluid guided to the distal end side to the discharge port. 360).

  Thereby, it becomes possible to cool the existing rotary shaft only by providing the suction port, the discharge port, and the guide member. Specifically, since the rotating shaft is cooled by taking in fluid by the rotation of the rotating shaft itself, the temperature rise of the bearing and the seal member in contact with the rotating shaft can be suppressed, and the life of the bearing and the seal member can be extended. And the replacement frequency can be reduced. Moreover, since the temperature rise can be suppressed without adding a facility for supplying the refrigerant, the entire facility can be made compact and a new investment cost can be reduced.

  (2) In the present invention, at least one of the suction port (for example, suction port 16a described later) and the discharge port (for example, discharge ports 16b, 26b, and 36b described later) is provided on the peripheral surface of the rotating shaft. It is preferable.

  Thereby, since at least one of the suction port and the discharge port is arranged at a position where the fluid can be easily introduced or discharged, the cooling effect can be further improved.

  (3) In the present invention, the guide member (for example, a restriction plate 160 described later) is formed in a plate shape, and the suction port (for example, a suction port 16a described later) and the discharge port (for example, a description described later). The discharge port 16b) is preferably arranged to face the peripheral surface of the base end side of the rotating shaft.

  As a result, the guide member, the suction port, and the discharge port can be simply configured, and can be easily applied to an existing stirring device.

  (4) The rotating shaft rotates integrally with the rotation of the rotating shaft and sucks fluid from the suction ports (for example, suction ports 26a and 36a described later) (for example, a sirocco fan 25, described later). It is preferable that a propeller fan 35) is provided on the base end side, and the discharge ports (for example, discharge ports 26b and 36b described later) are formed on the peripheral surface on the front end side of the rotating shaft with respect to the suction port.

  Thereby, a fluid can be reliably guide | induced to the inside of a rotating shaft by a blade member, and a cooling effect can be improved further.

  (5) In the present invention, a piston body (for example, a piston body 12 to be described later) that is disposed in the container and advances / retreats in a direction along the rotation axis on the opposite side of the rotation axis from the stirring body; It is preferable that a cover member (for example, a cover member 19 to be described later) covering the periphery of the rotation shaft is provided.

  As a result, even if the rotating shaft rotates during both the liquid introduction process and the cleaning process and easily rises in temperature, it is cooled using the fluid each time it rotates, effectively extending the life of the bearings and seal members. can do.

  According to the present invention, the replacement frequency of the bearing and the seal member can be reduced, and the entire equipment can be made compact.

It is the schematic which shows the rotating shaft cooling structure of the stirring apparatus which concerns on 1st Embodiment of this invention. It is the schematic which shows the principal part of the rotating shaft cooling structure of the stirring apparatus shown in FIG. It is the schematic which shows the suction inlet of the rotating shaft which concerns on 1st Embodiment of this invention from the surrounding surface of the said rotating shaft. It is the sectional view on the AA line of FIG. 2 which shows the inside of the rotating shaft which concerns on 1st Embodiment of this invention. It is the schematic which shows the principal part of the rotating shaft cooling structure of the stirring apparatus which concerns on 2nd Embodiment of this invention. It is the schematic which shows the principal part of the rotating shaft cooling structure of the stirring apparatus which concerns on 3rd Embodiment of this invention.

  A rotating shaft cooling structure of a stirring apparatus according to an embodiment of the present invention will be described below with reference to the drawings. In the description of the second embodiment and the third embodiment, the same reference numerals are given to the same components as those in the first embodiment, and the corresponding components are assigned the same symbols according to the same regularity, and the description thereof is appropriately described. Is omitted. Further, in the description of the second embodiment and the third embodiment, descriptions of operations and effects common to the first embodiment will be omitted as appropriate.

[First Embodiment]
First, the rotating shaft cooling structure 1 of the stirring apparatus 5 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic diagram showing a rotating shaft cooling structure 1 of a stirring device 5 according to a first embodiment of the present invention. FIG. 2 is a schematic view showing a main part of the rotating shaft cooling structure 1 of the stirring device 5 shown in FIG.

  The rotating shaft cooling structure 1 of the stirring device 5 shown in FIG. 1 is the structure of the stirring device 5 that mixes a plurality of liquids (for example, paints). Specifically, the rotating shaft cooling structure 1 of the stirring device 5 includes a container 10, a plurality of valves 11a, 11b, 11c, 11d, a piston body 12, a piston body motor 13, a stirring body 14, and a pair of A bearing 15, a rotating shaft 16, a seal member 17, a stirrer motor 18, a cover member 19, and the like are provided.

  The container 10 contains a liquid for stirring. A liquid supply machine (not shown) is connected to the container 10 via a plurality of valves 11a to 11d. Each of the plurality of valves 11a to 11d is a valve that is opened and closed as necessary. By opening the plurality of valves 11a to 11d, liquid is supplied into the container 10 from a supply machine (not shown).

  The piston body 12 is disposed in the container 10 and is driven by a piston body motor 13 so that the piston body 12 advances and retreats in the direction along the rotation shaft 16 on the opposite side of the rotation shaft 16 from the stirring body 14. . When the piston body 12 is driven, the liquid in the container 10 is supplied to the outside from a supply port (not shown) of the container 10. The piston body motor 13 may be any type of motor, but for example, a servo motor can be applied.

  The stirring body 14 is disposed in the container 10 and is a stirring blade that stirs the liquid in the container 10. The stirring body 14 rotates integrally with the rotating shaft 16 to stir the liquid in the container 10. The pair of bearings 15 are disposed outside the container 10 and support the rotation of the rotating shaft 16. The rotating shaft 16 is inserted into a through-hole 10 a of the container 10, a proximal end portion is supported by a pair of bearings 15 outside the container 10, and a distal end portion is fixed to the stirring body 14 in the container 10. Has been. The rotating shaft 16 is driven by a stirring body motor 18 to rotate integrally with the stirring body 14. The seal member 17 is a packing that closes a gap between the through hole 10 a and the rotary shaft 16. The cover member 19 is disposed between the pair of bearings 15 so as to cover the periphery of the rotating shaft 16.

  Here, an example of the overall flow of the coating apparatus to which the rotating shaft cooling structure 1 of the present embodiment is applied will be described. The coating apparatus performs coating using a mixing ratio calculation process, a supply amount calculation process, an introduction process, a mixing process, a phase process, a painting process, and a cleaning process as a cycle.

  In the mixing ratio calculation step, the ratio of paint necessary for painting is calculated. The required amount of each paint is calculated in the supply amount calculation step according to the calculated ratio. In the introducing step, each paint is sequentially supplied to each of the plurality of valves 11a to 11d from a supply machine (not shown) based on the calculated supply amount. At this time, the piston body 12 is driven by the control of the piston body motor 13 so as to increase the internal capacity of the container 10, and the paint introduced into the container 10 is accurately measured by the pulling allowance. In the mixing step, the plurality of paints supplied to the inside of the container 10 are agitated by the rotation of the agitator 14 of the rotating shaft 16 that is rotated by driving the agitator motor 18.

  The mixed paint uniformly stirred in the mixing step is driven by the piston body motor 13 to reduce the internal capacity of the container 10 under the control of the piston body motor 13, and is phased to the supply destination outside the container 10. At the supply destination, an object (for example, a vehicle body) is painted by a painting robot, a painting gun, or the like. After supplying the mixed paint, the inside of the container 10 of the stirring device 5 is cleaned in the cleaning step while rotating the rotating shaft 16 by the stirring body motor 18.

  Next, the structure of the rotating shaft 16 of this embodiment is demonstrated. As shown in FIG. 2, the rotating shaft 16 has a cylindrical hollow structure with both ends closed, and has a suction port 16a and a discharge port 16b on the proximal end side.

  FIG. 3 is a schematic view showing the suction port 16a of the rotating shaft 16 according to the first embodiment of the present invention from the peripheral surface of the rotating shaft 16. As shown in FIG. 4 is a cross-sectional view taken along line AA of FIG. 2 showing the inside of the rotating shaft 16 according to the first embodiment of the present invention. As shown in FIGS. 3 and 4, the suction port 16 a is provided on the peripheral surface of the rotating shaft 16, and allows the external gas (fluid) to flow into the inside as the rotating shaft 16 rotates. The discharge port 16b is provided on the peripheral surface of the rotary shaft 16 so as to face the suction port 16a, and the internal gas (fluid) flows out to the outside as the rotary shaft 16 rotates. A regulating plate 160 that guides gas (fluid) is provided inside the rotary shaft 16.

  In this embodiment, a slant claw 161 for facilitating the flow of gas into the rotary shaft 16 is formed in the suction port 16a. The slant claw 161 has its tip toward the outside of the suction port 16a along the direction of rotation of the rotary shaft 16 (arrow in FIG. 3). In addition, a slant claw 162 is formed in the discharge port 16b to make it difficult to take in the gas and to easily discharge the gas. The tip of the slant claw 162 faces the inner side of the rotation shaft 16. In addition, the shape of the slant claw 161 and the slant claw 162 can be changed as appropriate. Further, the slant claw 161 and the slant claw 162 can be omitted.

  The restriction plate 160 is a long plate-shaped partition plate, and includes a first flow path FP <b> 1 that guides gas (fluid) from the suction port 16 a to the tip of the rotation shaft 16, and the rotation shaft 16. And a second flow path FP2 for guiding gas (fluid) from the tip of the gas to the discharge port 16b. The restriction plate 160 guides the gas (fluid) flowing in from the suction port 16a to the distal end side of the rotating shaft 16, and guides the gas (fluid) guided to the distal end side of the rotating shaft 16 to the discharge port 16b.

  A guide fan 20 is provided on the base end side of the rotating shaft 16. The guide fan 20 is rotated along with the rotation of the rotating shaft 16 so that the blades can be efficiently guided by the suction port 16a. Note that the shape of the guide fan 20 is not limited, and may be omitted.

  In the present embodiment, the front end of the restriction plate 160 is located closer to the front end side of the rotating shaft 16 than the end surface 17 a of the seal member 17, and reaches the vicinity of the stirring body 14. Accordingly, the gas flow path formed by the first flow path FP1 and the second flow path FP2 passes through the front end side of the rotary shaft 16 rather than the bearing 15a and the seal member 17 on the front end side of the rotary shaft 16. It becomes. Accordingly, the bearing 15a and the seal member 17 are reliably cooled.

  The restriction plate 160 guides the gas (fluid) flowing in from the suction port 16a to the distal end side of the rotating shaft 16 and guides the gas (fluid) guided to the distal end side of the rotating shaft 16 to the discharge port 16b. It is sufficient that there is a hole or a gap such that a part of the gas (fluid) flowing in from the suction port 16a is short-circuited to the second flow path FP2 in the middle of the first flow path FP1. It is not excluded. Further, the restriction plate 160 does not exclude that one of the first flow path FP1 and the second flow path FP2 is surrounded by the other by constituting a double tube structure together with the rotating shaft 16, but preferably Is a partition plate that does not form a double-pipe structure together with the rotating shaft 16.

  Next, the flow of gas (fluid) in the rotating shaft cooling structure 1 of the stirring device 5 according to the first embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 2, when the liquid in the container 10 is agitated, the agitator 14 is driven by the agitator motor 18 to rotate integrally with the rotating shaft 16. As the rotating shaft 16 rotates, an external gas (fluid) flows into the inside from an inlet 16 a provided on the peripheral surface of the rotating shaft 16. The gas (fluid) that has flowed into the rotary shaft 16 from the suction port 16a flows through the first flow path FP1 and is guided to the tip of the rotary shaft 16, and then flows through the second flow path FP2 to discharge the discharge port 16b. Be guided to. The gas (fluid) guided to the discharge port 16b flows out of the rotary shaft 16 from the discharge port 16b.

According to the rotating shaft cooling structure 1 of the stirring device 5 of the present embodiment, the following effects can be obtained.
In the present embodiment, the rotating shaft cooling structure 1 of the stirring device 5 includes a container 10 that contains a liquid, a stirring body 14 that is disposed in the container 10 and that stirs the liquid, and a bearing that is disposed outside the container 10. 15a and the through-hole 10a of the container 10 are inserted, the proximal end portion is supported by the bearing 15a outside the container 10, and the distal end portion is fixed to the stirring body 14 in the container 10 and the stirring is performed. A rotating shaft 16 that rotates integrally with the body 14, and a seal member 17 that closes a gap between the through hole 10 a and the rotating shaft 16 are provided. The rotating shaft 16 has a cylindrical hollow structure having a suction port 16a and a discharge port 16b on the proximal end side, and by rotating, guides the fluid flowing in from the suction port 16a to the distal end side and to the distal end side. A restricting plate 160 for guiding the fluid to the discharge port 16b is provided.

  Thereby, cooling can be performed only by providing the existing rotating shaft 16 with the suction port 16a, the discharge port 16b, and the restriction plate 160. Specifically, since the rotary shaft 16 is cooled by taking in fluid by the rotation of the rotary shaft 16 itself, the temperature rise of the bearing 15a and the seal member 17 in contact with the rotary shaft 16 is suppressed, and the bearing 15a and the seal member are suppressed. It is possible to extend the life of 17 and reduce the replacement frequency. Moreover, since the temperature rise can be suppressed without adding a facility for supplying the refrigerant, the entire facility can be made compact and a new investment cost can be reduced.

  In the present embodiment, both the inlet 16 a and the outlet 16 b are provided on the peripheral surface of the rotating shaft 16.

  Thereby, since the suction port 16a and the discharge port 16b are arrange | positioned in the position which is easy to introduce | transduce or discharge | emit gas (fluid), a cooling effect can be improved further.

  Further, in the present embodiment, the restriction plate 160 is formed in a plate shape, and the suction port 16 a and the discharge port 16 b are disposed to face the peripheral surface on the proximal end side of the rotating shaft 16.

Thereby, the restriction plate 160, the suction port 16a, and the discharge port 16b as guide members can be simply configured, and can be easily applied to the existing stirring device 5.
Further, the gas (fluid) can be efficiently allowed to flow into the rotary shaft 16 by the slant claw 161 provided in the suction port 16a, and the gas (fluid) can be efficiently supplied by the slant claw 162 provided in the discharge port 16b. Can be discharged.
Further, the gas (fluid) can surely flow into the rotary shaft 16 by the guide fan 20 provided on the base end side of the rotary shaft 16.

  Further, in the present embodiment, the piston body 12 that is disposed in the container 10 and moves forward and backward in the direction along the rotation shaft 16 on the opposite side of the rotation shaft 16 from the stirring body 14 and the periphery of the rotation shaft 16 are covered. And a cover member 19.

  Thereby, even if the rotating shaft 16 that rotates in both the liquid introduction process and the cleaning process and easily rises in temperature is cooled by using gas (fluid) each time it rotates, the bearing 15a can be effectively used. In addition, the life of the seal member 17 can be extended.

[Second Embodiment]
Next, the rotating shaft cooling structure 2 of the stirring apparatus 5 which concerns on 2nd Embodiment of this invention is demonstrated using FIG. FIG. 5 is a schematic view showing the rotating shaft cooling structure 2 of the stirring device 5 according to the second embodiment of the present invention. The rotating shaft cooling structure 2 of the stirring device 5 according to the present embodiment is different from the first embodiment in that a rotating shaft 26 is provided instead of the rotating shaft 16.

  As shown in FIG. 5, the rotating shaft 26 has a cylindrical hollow structure with both ends closed, and a sirocco fan 25 is disposed on the proximal end side. An opening formed in the peripheral surface of the sirocco fan 25 serves as a suction port 26 a through which gas flows into the rotary shaft 26.

  In the discharge port 26 b of the second embodiment, the discharge port 26 b is provided on the peripheral surface of the rotating shaft 26 closer to the tip than the sirocco fan 25. The sirocco fan 25 rotates integrally with the rotating shaft 26. As the sirocco fan 25 rotates, an external gas (fluid) flows from the peripheral surface of the rotating shaft 26 into the rotating shaft 26 through the suction port 26a.

  A regulating plate 260 that guides gas (fluid) is provided inside the rotary shaft 26. The restriction plate 260 includes a first flow path FP1 that guides gas (fluid) from the sirocco fan 25 to the tip of the rotary shaft 26, and gas (fluid) from the tip of the rotary shaft 26 to the discharge port 26b. ) To the second flow path FP2.

  The restricting plate 260 of the second embodiment has a shape in which a long flat plate of a rotating shaft is curved in order to guide a gas (fluid) to a discharge port 26b formed on the tip side of the sirocco fan 25 (suction port 26a). It is composed of a partition plate. The gas (fluid) flowing in from the sirocco fan 25 by the rotation of the rotation shaft 26 is guided to the tip end side of the rotation shaft 26 by the first flow path FP1, and then goes around the front end of the restriction plate 260 and enters the second flow path. It enters FP2 and is finally discharged to the outside from the discharge port 26b. In the second embodiment, a guide hole that guides the gas (fluid) exiting from the discharge port 26 b to the outside of the cover member 19 may be formed in the cover member 19. Moreover, it can also comprise so that the cover member 19 and the discharge port 26b may not overlap.

  Also in the second embodiment, the front end of the regulation plate 260 is located on the front end side of the rotary shaft 16 with respect to the bearing 15 a on the front end side of the rotary shaft 16 and the end surface 17 a of the seal member 17. As a result, the gas flow path formed by the first flow path FP1 and the second flow path FP2 passes through the front end side of the rotating shaft 16 rather than the end face 17a of the bearing 15a and the seal member 17. .

[Third Embodiment]
Next, the rotating shaft cooling structure 3 of the stirring apparatus 5 according to the third embodiment of the present invention will be described with reference to FIG. FIG. 6 is a schematic view showing the rotating shaft cooling structure 3 of the stirring device 5 according to the third embodiment of the present invention. The rotating shaft cooling structure 3 of the stirring device 5 according to the present embodiment is different from the first embodiment in that a rotating shaft 36 is provided instead of the rotating shaft 16.

  As shown in FIG. 6, the rotary shaft 36 has a cylindrical hollow structure with the distal end closed and the proximal end opened, and has a propeller fan 35 and an intake port 36a serving as an intake port on the proximal end side. . The propeller fan 35 causes an external gas (fluid) to flow into the rotary shaft 36 from a suction port 36 a provided on the proximal end side of the rotary shaft 36 as the rotary shaft 36 rotates. The discharge port 36b is provided on the peripheral surface of the rotation shaft 36 closer to the tip than the propeller fan 35, and the internal gas (fluid) flows out to the outside as the rotation shaft 36 rotates. A regulating plate 360 that guides gas (fluid) is provided inside the rotary shaft 36.

  The restriction plate 360 is a partition plate having a shape obtained by bending a long flat plate, and includes a first flow path FP1 that guides gas (fluid) from the propeller fan 35 to the tip of the rotation shaft 36 inside the rotation shaft 36. The second flow path FP2 for guiding gas (fluid) from the tip of the rotating shaft 36 to the discharge port 36b is partitioned. The restriction plate 360 guides the gas (fluid) flowing from the propeller fan 35 to the distal end side of the rotating shaft 36 and guides the gas (fluid) guided to the distal end side of the rotating shaft 36 to the discharge port 36b. The restriction plate 360 has the same configuration as the restriction plate 260 and is not limited to the form described here.

  Note that the agitator motor 18 (see FIG. 1) (not shown in FIG. 6) cannot be provided at the base end of the rotating shaft 36, and therefore is provided at an appropriate location and is rotated by an appropriate means such as a pulley belt. The driving force is transmitted to 36. In the first embodiment and the second embodiment, a mechanism that rotates the rotating shaft without arranging a motor on the base end side of the rotating shaft 16 can be employed.

  In the second and third embodiments described above, the rotation shaft 26 (or the rotation shaft 36) rotates integrally with the rotation of the rotation shaft 26 (or the rotation shaft 36), and the suction port 26a (or suction). The sirocco fan 25 (or propeller fan 35) as a blade member for sucking gas (fluid) from the port 36a) is provided on the base end side, and the discharge port 26b (discharge port 36b) is the suction port 26a (or suction port 36a). It is preferable to be formed on the peripheral surface on the tip side of the rotary shaft 26 (or the rotary shaft 36).

  Thereby, the fluid can be reliably guided to the inside of the rotating shaft by the sirocco fan 25 (or the propeller fan 35), and the cooling effect can be further improved.

  It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within the scope that can achieve the object of the present invention are included in the present invention. For example, in the above-described embodiment, the case where the fluid flowing inside the rotating shaft is a gas has been described as an example. However, in the present invention, a liquid such as water may be used as the fluid flowing inside the rotating shaft.

  In the above embodiment, the restriction plates 160, 260, and 360 that divide the inside of the rotating shaft 16 have been described as examples of the guide member. However, the present invention is not limited to this configuration. For example, as described above, the shape may be changed, such as forming a communication port for short-circuiting the first flow path FP1 and the second flow path FP2 in the restriction plates 160, 260, 360, You may comprise a guide member with the inner wall extended from an internal peripheral surface.

1, 2 and 3 Rotating shaft cooling structure of stirrer 5 Stirrer 10 Container 10a Through hole 11a, 11b, 11c, 11d Valve 12 Piston body 13 Motor for piston 14 Stirrer 15a Bearing 16 Rotating shaft 16a Suction port 16b Discharge port 160 Regulating plate (guide member)
17 Seal member 18 Stirrer motor 19 Cover member 20 Guide fan (blade member)
25 Sirocco fan (feather member)
26 Rotating shaft 26a Suction port 26b Discharge port 260 Restriction plate (guide member)
35 Propeller fan (blade member)
36 Rotating shaft 36a Suction port 36b Discharge port 360 Restriction plate (guide member)
FP1 first flow path FP2 second flow path

Claims (5)

A container containing a liquid;
An agitator disposed in the container and agitating the liquid;
A bearing disposed outside the container;
The container is inserted into a through hole of the container, and a proximal end portion is supported by the bearing outside the container, and a distal end portion is fixed to the stirring body in the container so as to be integrated with the stirring body. A rotating axis of rotation;
A rotating shaft cooling structure of a stirring device comprising: a seal member that closes a gap between the through hole and the rotating shaft;
The rotating shaft has a cylindrical hollow structure having a suction port and a discharge port on the proximal end side, and by rotating, guides the fluid flowing from the suction port to the distal end side and the fluid guided to the distal end side. A rotating shaft cooling structure of a stirring device having a guide member for guiding to a discharge port.   The rotating shaft cooling structure of the stirring device according to claim 1, wherein at least one of the suction port and the discharge port is provided on a peripheral surface of the rotating shaft. The guide member is formed in a plate shape,
The rotating shaft cooling structure of the stirring device according to claim 2, wherein the suction port and the discharge port are disposed to face a peripheral surface on a proximal end side of the rotating shaft. The rotating shaft includes a blade member that rotates integrally with the rotation of the rotating shaft and sucks fluid from the suction port on the proximal end side,
The rotating shaft cooling structure of the stirring device according to claim 2, wherein the discharge port is formed on a peripheral surface on a tip side of the rotating shaft with respect to the suction port. A piston body disposed in the container and moving forward and backward in a direction along the rotation axis on the opposite side of the rotation axis from the stirring body;
The rotating shaft cooling structure of the stirring device according to any one of claims 1 to 4, further comprising a cover member that covers the periphery of the rotating shaft.

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