JP2005305369A - Stirring mixer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stirring mixer for stirring and mixing a material through its revolution and the revolution of a stirrer in a vessel of which the inside is compressed or evacuated. <P>SOLUTION: This stirring mixer is provided with a revolution body 120 rotatably disposed on a support wall 111; a driver 130 of the revolution body; a first gear 140 fixed on a stirring mixer body; an intermediate shaft 150 which is formed of a second gear 151 engaged with the first gear on the upper part and is formed of a third gear 152 on the lower part; a rotation shaft 160 which is formed of a fourth gear 161 engaged with the third gear on the upper part and is formed of the stirrer 170 on the lower part; and the vessel 180. In the stirring mixer 100 in which the rotation shaft is revolved and rotated, air-tight sealing is performed between a shaft part of the revolution body and a support wall and, also, air-tight sealing is performed between a housing of the rotation body and the rotation shaft. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a stirring and mixing device in which a stirring tool is revolved and rotated in a container whose inside is pressurized or depressurized to stir and mix materials.

  In Patent Document 1, a bottomed cylindrical container and a lid member that closes the container are fixed to a frame, and a revolution hub is rotatably fitted in a support hole that is opened at the center of the lid member. A rotating shaft is passed through the hub in a rotatable manner, a stirrer is fixed to the container side of the rotating shaft, and the revolving hub and the rotating shaft are rotated by a drive mechanism provided on the opposite side of the revolving hub to rotate the stirrer. The revolving seal that is configured to revolve and rotate in a container, and that is divided into a revolving seal member that fits the revolving hub into the support hole and a revolving seal member that is located in the container, and faces the container. A sealing structure for an agitation and mixing device is disclosed in which a seal ring is attached to a gap between a member and a support hole, and a seal structure for sealing the gap between the rotation seal member and the rotation shaft is provided. In this stirring and mixing device, the revolution hub is divided into a revolution seal member and a revolution seal member, and the outer diameter of the revolution seal member, which is the seal portion where the peripheral speed is the largest, while enabling sufficient sealing of the revolution shaft. Can be set as thin as possible, the peripheral speed is lowered, the sealing performance is improved, the life of the seal ring is extended, and the inside of the stirring and mixing machine that stirs while pressurizing or depressurizing the inside of the container is introduced. Thus, the intrusion of the stirring substance and the contamination of the stirring substance are surely prevented. The revolution and rotation of the rotation shaft are performed by a planetary gear mechanism.

Patent Document 2 and Patent Document 3 both disclose an agitation and mixing device that performs rotation and rotation of a rotation shaft by a planetary gear mechanism.
Japanese Patent Laid-Open No. 11-28346 Japanese Patent Publication No. 6-24614 Japanese Patent Laid-Open No. 11-207165

  In the case of the stirring and mixing apparatus of Patent Document 1, the planetary gear mechanism is fixed with the sun gear to cause the planetary gear to revolve and rotate, so that the stirring tool provided at the lower end of the rotation shaft directly connected to the planetary gear can be used in the container. The ingredients are stirred and mixed. Because of this structure, when the rotation ratio between the gear module, the revolution hub, and the rotation shaft is determined, the radius of the revolution track of the rotation shaft is determined. However, it is ideal that the radius of the revolution trajectory can be freely changed according to, for example, the nature of the material, the shape of the bottom of the container, and other factors. Against this background, by changing some parts while following the basic structure, the radius of the revolution track without changing the gear module, the rotation ratio between the revolution hub and the revolution shaft, and the rotation direction of the revolution hub and the revolution shaft. There is a desire to realize a variation of the stirring and mixing apparatus that changes the above. Here, the gear module is not changed because there is an optimum module according to the material to be mixed with stirring. If the module is made larger than this, for example, the noise of the gear will increase, and if it is reduced, the transmission torque of the gear will be reduced. This is because there is a problem of becoming.

  The present invention has been made paying attention to such points, and the object of the present invention is to incorporate a sun gear and a planetary gear into a revolution body corresponding to the revolution hub, so that the outer diameter of the upper part of the revolution body is increased. As much as possible to reduce the peripheral speed, improve the sealing performance, improve the life of the sealing member, intrusion of the stirring substance into the mechanism of the stirring mixer that stirs while pressurizing or depressurizing the inside of the container and In addition to reliably preventing foreign matter from mixing into the agitated substance and adding an intermediate shaft between the sun gear and the planetary gear, the rotation ratio of the gear module, revolving body and rotation shaft can be changed by changing some parts. Another object of the present invention is to easily realize a variation of the stirring and mixing apparatus in which the radius of the revolution orbit is changed without changing the rotation direction of the revolution body and the rotation shaft.

  In order to achieve the above object, a stirring and mixing apparatus according to a first aspect of the present invention includes an apparatus main body having a support wall provided with a through-hole penetrating vertically and extending vertically with respect to the support wall by being inserted into the through-hole. A revolving body having a shaft portion rotatably provided around the rotation center shaft and having a housing provided below the shaft portion and provided with a gear chamber therein, and provided on the apparatus main body. A drive device that rotates the body, a first gear that is disposed in the gear chamber of the revolution body so that the rotation center axis coincides with the rotation center axis of the shaft portion of the revolution body, and is fixed to the apparatus body; An intermediate shaft provided in a rotatable manner in a gear chamber of the revolving body, extending in a vertical direction, a second gear meshing with the first gear at the upper portion, and an intermediate shaft provided at the lower portion with the third gear aligned with the rotation center axis; The center of rotation extends vertically and the upper part is a revolutionary gear chamber. The lower part is provided rotatably on the revolution body such that the lower part protrudes downward from the revolution body, the fourth gear meshing with the third gear is provided on the upper part with the rotation center axis aligned, and the agitator is provided on the lower part. A rotating shaft and a container provided in the apparatus main body so as to form an agitating chamber which is disposed so as to surround the rotating shaft below the support wall and is hermetically sealed with the support wall of the apparatus main body. Provided, and configured to revolve the rotation shaft around the rotation center axis of the revolution body and to rotate around the rotation center axis of the rotation shaft by the rotation drive of the drive device, and the shaft portion and the support wall of the revolution body Between the housing of the revolution body and the rotation shaft.

  In the case of this stirring and mixing device, the first gear, the intermediate shaft, and the fourth gear are accommodated in the gear chamber of the revolution body, so that the outer diameter of the shaft portion at the top of the revolution body can be made as small as possible. Since the peripheral speed is small when the diameter is small, sealing between the shaft portion of the revolution body and the support wall in an airtight manner improves the sealing performance and the life of the seal member. In combination with the sealing between the two, the intrusion of the stirring substance into the mechanism of the stirring mixer that stirs the container while pressurizing or depressurizing the inside and the mixing of foreign substances into the stirring substance is reliably prevented. The

  In addition, since the intermediate shaft is provided between the first gear that is the sun gear and the fourth gear of the rotating shaft that is the planetary gear, by changing the position of the fourth gear on the circumference with respect to the third gear, By changing the number of teeth of the 3rd gear by appropriately setting the number of teeth ratio of the 1st gear and the 2nd gear and the number of teeth of the 3rd gear and the 4th gear, some parts such as revolving bodies and gears Thus, it is possible to easily realize a variation of the stirring and mixing apparatus in which the radius of the revolution track is changed without changing the gear module, the rotation ratio between the revolution body and the rotation shaft, and the rotation direction of the revolution body and the rotation shaft.

  The stirring and mixing device according to claim 2 is the stirring and mixing device according to claim 1, wherein the plurality of intermediate shafts are provided so as to surround the first gear, and a rotation shaft is provided corresponding to each intermediate shaft. .

  If it does in this way, the said effect | action can be show | played in the multiaxial stirring mixing apparatus which has two or more autorotation shafts.

  According to the first aspect, it is possible to improve the sealing performance between the shaft portion of the revolution body and the support wall and to improve the life of the seal member. Therefore, it is possible to reliably prevent the intrusion of the stirring substance into the mechanism of the stirring mixer that stirs while pressurizing or depressurizing the inside of the container and the mixing of the foreign substance into the stirring substance. In addition, by changing some parts such as the revolution body and gear, the stirring and mixing device can change the radius of the revolution orbit without changing the rotation ratio of the revolution module and the rotation axis of the gear module, the revolution body and the rotation axis. The variation of can be realized easily.

  According to the second aspect, the same effect as described above can be obtained in the multiaxial stirring and mixing apparatus.

  Embodiments of the present invention will be described below. FIG.1 and FIG.2 shows the stirring and mixing apparatus 100 which is the 1st Embodiment of this invention. The stirring and mixing device 100 is configured to cause a stirring tool to rotate and rotate in an airtightly sealed stirring chamber, thereby stirring and mixing the materials. Since the agitation chamber is airtight, it is possible to raise or lower the atmospheric pressure with a pump or the like to make it higher or lower than the atmospheric pressure.

  In FIG. 1, reference numeral 110 denotes an apparatus main body of the stirring and mixing apparatus 100, and the apparatus main body 110 is provided with a support wall 111 that extends substantially horizontally. The support wall 111 is provided with a through-hole 111a penetrating vertically. A revolution body 120 is rotatably attached to the support wall 111. The revolution body 120 includes a shaft portion 121 and a housing 122 provided below the shaft portion 121. The shaft 121 is formed in a cylindrical shape. The shaft portion 121 is fitted into the through hole 111 a of the support wall 111, and the shaft portion 121 is provided so as to be rotatable around a rotation center axis extending vertically with respect to the support wall 111. A gear chamber 122 a is provided inside the housing 122. The rotation center axis of a member means a virtual axis passing through the rotation center of the member.

  The device main body 110 is provided with a driving device 130 that rotates the revolution body 120. The drive device may be any device that generates a rotational force, but here, the drive device 130 is configured by an electric motor and a speed reducer. Then, the driving device 130 rotates the shaft portion 121 of the revolution body 120 around its rotation center axis via a gear. The shaft portion may be driven to rotate by belt transmission or other means instead of the gear.

  As shown in FIGS. 1 and 2, the first gear 140 is disposed in the gear chamber 122 a of the revolution body 120 so that the rotation center axis thereof coincides with the rotation center axis of the shaft portion 121 of the revolution body 120. Yes. The first gear 140 is fixed to the apparatus main body 110. Although the fixing method is not limited, the upper end of the shaft fixed to the center of the first gear 140 is fixed to the apparatus main body 110 here.

  An intermediate shaft 150 is provided in the gear chamber 122a of the revolution body 120 so as to be rotatable with respect to the revolution body 120 so that the rotation center axis thereof extends vertically. A second gear 151 that meshes with the first gear 140 is provided on the upper portion of the intermediate shaft 150 so that the rotation center axis thereof coincides with the rotation center axis of the intermediate shaft 150. Below the intermediate shaft 150, a third gear 152 is provided with its rotation center axis aligned with the rotation center axis of the intermediate shaft 150.

  The revolution body 120 has a rotation shaft 160, the rotation center axis extends vertically, the upper part is disposed in the gear chamber 122 a of the revolution body 120, and the lower part can rotate with respect to the revolution body 120 so that the lower part protrudes downward from the revolution body 120. Is provided. A fourth gear 161 that meshes with the third gear 152 is provided above the rotation shaft 160 so that the rotation center axis thereof coincides with the rotation center axis of the rotation shaft 160. A stirring tool 170 is provided below the rotation shaft 160. The stirrer 170 may be detachably attached to the rotation shaft 160 or may be directly attached. In this embodiment, the first gear 140, the second gear 151, the third gear 152, and the fourth gear 161 are unified, and this is preferable. However, at least the first gear 140 and the second gear 151 may have the same module, and the third gear 152 and the fourth gear 161 may have the same module.

  A container 180 is disposed below the support wall 111 so as to surround the rotation shaft 160. The container 180 is formed in a substantially cylindrical shape with a bottom. Here, the container 180 is configured to be split vertically, but may be split into two or more as described above, or may be formed integrally. The upper end of the container 180 is provided to reach the support wall 111 of the apparatus main body 110, and the container 180 and the support wall 111 are hermetically sealed by, for example, O-rings. Between, it is comprised so that the airtightly sealed stirring chamber 190 may be formed.

  When the driving device 130 is operated, the revolution body 120 is rotated by the rotational drive of the driving device 130, and thereby the rotation shaft 160 revolves around the rotation center axis of the revolution body 120. Further, due to the rotation of the revolution body 120, the intermediate shaft 150 revolves around the first gear 140. Since the first gear 140 is fixed to the apparatus main body 110, the intermediate shaft 150 rotates, and this rotation is the rotation axis. The rotation shaft 160 is rotated by being transmitted to 160, and the rotation shaft 160 rotates around the rotation center axis of the rotation shaft 160.

  Further, the shaft 121 of the revolution body 120 and the support wall 111 are hermetically sealed. Here, the oil seal 123 is provided between the shaft portion 121 and the support wall 111, but another seal structure may be provided. Furthermore, the space between the housing 122 of the revolution body 120 and the rotation shaft 160 is hermetically sealed. Here, the oil seal 124 is provided between the housing 122 and the rotation shaft 160, but another seal structure may be provided.

  In the case of this stirring and mixing apparatus 100, the first gear 140, the intermediate shaft 150, and the fourth gear 161 are accommodated in the gear chamber 122a of the revolution body 120, so that the outer diameter of the shaft 121 on the revolution body is made as much as possible. If the outer diameter is small, the peripheral speed is small. Therefore, if the space between the shaft portion 121 and the support wall 111 of the revolution body 120 is hermetically sealed, the sealing performance is improved, the oil seal and other seal rings, etc. The agitation mixer that stirs the interior of the container 180 while applying pressure or reduced pressure in combination with the sealing of the space between the housing 122 of the revolution body 120 and the rotation shaft 160. Intrusion of the stir substance into the mechanism 100 and contamination of the stir substance are reliably prevented.

  In addition, since the intermediate shaft 150 is provided between the first gear 140 that is the sun gear and the fourth gear 161 of the rotation shaft 160 that is the planetary gear, the circumferential position of the fourth gear 161 relative to the third gear 152 is set. By changing some parts such as the revolution body 120 and the gear, the gear 140, 151, 152, 161 module, the rotation ratio between the revolution body 120 and the rotation shaft 160, and the rotation of the revolution body 120 and the rotation shaft 160 are changed. A variation of the stirring and mixing apparatus 100 in which the radius of the revolution trajectory T is changed without changing the direction is easily realized. Further, by changing the number of teeth of the third gear 152 by appropriately setting the gear ratio of the first gear 140 and the second gear 151 and the gear ratio of the third gear 152 and the fourth gear 161, the revolution Without changing the rotation ratio of the revolution body 120 and the rotation shaft 160 without changing the rotation ratio of the revolution body 120 and the rotation shaft 160 by changing the parts of the body 120, gears, and the like, the modules of the gears 140, 151, 152, 161 The variation of the stirring and mixing apparatus 100 in which the radius of the revolution trajectory T is changed can be easily realized. Therefore, for example, the variation of the stirring and mixing apparatus 100 in which the radius of the revolution trajectory T is changed according to the nature of the material, the bottom shape of the container, and other factors can be simplified.

  This will be described in detail. 9 and 10 show a stirring and mixing apparatus of a comparative example using a planetary gear mechanism. In the stirring and mixing apparatus of this comparative example, a revolution body 220 is disposed below the support wall 211 of the apparatus main body 210, a gear chamber 221 is formed therebetween, and the revolution body 220 can be rotated on the support wall 211. The rotation shaft 230 is rotatably provided on the revolution body 220, and the moving side gear 231 provided on the rotation shaft 230 is engaged with a fixed side gear 240 made of an internal gear fixed to the lower side of the support wall 211, and driven. By rotating the revolution body 220 by the device 250, the rotation shaft 230 is revolved around the rotation center axis of the revolution body 220 and is rotated around the rotation center axis of the rotation shaft 230. Under the support wall 211, a container 260 is disposed so as to surround the rotation shaft 230, and an agitation chamber 270 hermetically sealed with the support wall 211 is formed. And between the outer peripheral part of the revolution body 220 and the support wall 211 is airtightly sealed by the oil seal 222, for example, and between the revolution body 220 and the rotating shaft 230 is airtightly sealed by the oil seal 223, for example. . Reference numeral 280 denotes an agitator provided at the lower portion of the rotation shaft 230. Since it is such a structure, when the rotation ratio of the revolving body 220 and the rotating shaft 230 and the rotation ratio of the revolving body 220 and the rotating shaft 230 are determined, the modules of the moving side gear 231 and the fixed side gear 240, the rotating body 220 and the rotating shaft 230 are determined. The radius of the revolution axis of the rotation axis is determined, and a simple method such as changing the revolution body 220, the moving side gear 231 and the fixed side gear 240 can realize a variation of the stirring and mixing device in which the radius of the revolution path is changed. I can't.

  In contrast, in the stirring and mixing apparatus 100 of the first embodiment, as shown in FIG. 7, the rotation center axis of the rotation shaft 160 may be set anywhere around the third gear 152 (above the broken circle S). Can be set anywhere). Therefore, by changing the circumferential position of the fourth gear 161 relative to the third gear 152, the gear 140, 151, 152, 161, the rotation ratio between the revolution body 120 and the rotation shaft 160, the revolution body 120, and the rotation shaft. A variation of the stirring and mixing apparatus 100 in which the radius of the revolution trajectory T is changed without changing the rotation direction of 160 is easily realized. 3 to 6, the revolution ratio, which is the ratio of the revolution speed of the revolution body 120 to the revolution speed of the revolution shaft 160 with respect to the revolution body 120, is substantially the same, and the radius of the revolution trajectory T is substantially the same. In this example, the number of teeth of the first gear 140, the second gear 151, the third gear 152, and the fourth gear 161 is variously set. The four gear modules are unified in 3.5. The number of teeth of the first gear 140, the number of teeth of the second gear 151, the number of teeth of the third gear 152, the number of teeth of the fourth gear 161, and the revolution ratio are listed in the order shown in FIG. In one embodiment, these are 54, 15, 15, 16, and 3.375. In the second embodiment shown in FIG. 4, these are 58, 15, 15, 17, In the third embodiment shown in FIG. 5, these are 47 sheets, 22 sheets, 27 sheets, 17 sheets, 3.393, and in the fourth embodiment shown in FIG. 35, 17, 28, 17 and 3.391. As described above, the stirring and mixing apparatus 100 of the first embodiment has the third gear 152 by variously changing the number of teeth of each gear even if the revolution ratio is substantially the same and the radius of the revolution track T is substantially the same. The diameter of the can be changed. From this, by changing the number of teeth of the third gear 152, the modules of the gears 140, 151, 152, 161, the rotation ratio of the revolution body 120 and the rotation shaft 160, and the rotation direction of the revolution body 120 and the rotation shaft 160 are changed. It can be seen that the variation of the stirring and mixing apparatus 100 in which the radius of the revolution trajectory T is changed without change is easily realized.

  FIG. 8 shows a stirring and mixing apparatus 100 according to the second embodiment. In the stirring and mixing apparatus 100 of the first embodiment, only one pair of the intermediate shaft 150 and the rotation shaft 160 is provided. However, in the stirring and mixing apparatus 100 of the second embodiment, the intermediate shaft 150 and the rotation shaft 160 have two. Pairs are provided. That is, two intermediate shafts 150 are provided so as to surround the first gear 140, and a rotation shaft 160 is provided corresponding to each intermediate shaft 150.

  If it does in this way, in the multiaxial stirring and mixing apparatus 100 which has two or more rotation axis | shafts 160, the effect | action and effect similar to the stirring and mixing apparatus 100 of 1st Embodiment can be acquired. Here, the intermediate shaft 150 and the rotation shaft 160 are two pairs, but three or more pairs may be provided. In that case, a plurality of intermediate shafts 150 are provided so as to surround the first gear 140 and correspond to each intermediate shaft 150. Thus, the rotation shaft 160 is provided.

  The present invention includes embodiments obtained by appropriately combining the features of the above embodiments.

It is a longitudinal cross-sectional view of the stirring and mixing apparatus of 1st Embodiment. It is a perspective view which shows the principal part of the stirring and mixing apparatus of 1st Embodiment. The container is partially sectioned. It is a top view which shows the gear of the stirring mixing apparatus of 1st Example. To make it easier to understand, the gears that overlap each other are also shown as solid lines. A dot-dash line circle indicates a revolution trajectory. Each rotation center axis is connected with a solid line. FIG. 4 is a view corresponding to FIG. 3 showing a gear of the stirring and mixing device of the second embodiment. FIG. 6 is a view corresponding to FIG. 3 and showing gears of the stirring and mixing device of the third embodiment. FIG. 10 is a view corresponding to FIG. 3 and showing the gear of the stirring and mixing device of the fourth embodiment. It is explanatory drawing which shows the revolution track | orbit of the stirring and mixing apparatus of 1st Embodiment. It is a perspective view which shows the principal part of the stirring and mixing apparatus of 2nd Embodiment. The container is partially sectioned. It is a longitudinal cross-sectional view of the stirring and mixing apparatus of a comparative example. It is a perspective view which shows the principal part of the stirring and mixing apparatus of a comparative example. The container is partially sectioned.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Stirring and mixing apparatus 110 Apparatus main body 111 Support wall 111a Through-hole 120 Revolving body 121 Shaft part 122 Housing 122a Gear chamber 130 Drive apparatus 140 1st gear 150 Intermediate shaft 151 2nd gear 152 3rd gear 160 Rotating shaft 161 4th gear 170 Stirrer 180 Container 190 Stir chamber

Claims (2)

An apparatus main body having a support wall provided with a through-hole penetrating vertically;
The shaft portion is provided so as to be rotatable around a rotation center shaft that is inserted into the through-hole and extends up and down with respect to the support wall, and a gear chamber is provided in the lower portion of the shaft portion. A revolving body having a shaped housing;
A drive device provided in the apparatus body for rotating the revolution body;
A first gear disposed in the gear chamber of the revolution body and fixed to the apparatus main body so that the rotation center axis coincides with the rotation center axis of the shaft portion of the revolution body;
The rotation center shaft is rotatably provided in the gear chamber of the revolution body, the second gear meshing with the first gear is provided at the upper portion, and the third gear is provided at the lower portion with the rotation center shaft aligned. An intermediate shaft,
The rotation center axis extends vertically, the upper part is arranged in the gear chamber of the revolution body, the lower part is rotatably provided so as to protrude downward from the revolution body, and the fourth gear that meshes with the third gear rotates on the upper part A rotation shaft provided with a central axis aligned and a stirring tool provided at the bottom;
A container provided in the apparatus main body so as to form an agitating chamber which is arranged so as to surround the rotation shaft below the support wall and is hermetically sealed with the support wall of the apparatus main body,
The rotating shaft of the revolution device is configured to revolve around the rotation center axis of the revolution body and to rotate around the rotation center axis of the revolution body, and between the shaft portion of the revolution body and the support wall. A stirring and mixing device configured to hermetically seal a gap and hermetically seal between a housing of a revolution body and a rotation shaft.   The stirring and mixing apparatus according to claim 1, wherein a plurality of intermediate shafts are provided so as to surround the first gear, and a rotation shaft is provided corresponding to each intermediate shaft.

Images