JP7202591B2 - Centrifuge and transmission mechanism applied to it - Google Patents

Description

TECHNICAL FIELD The present invention relates to a centrifugal processing apparatus that performs material processing such as stirring, defoaming, dispersion, pulverization, and emulsification (including simultaneous processing of these).

2. Description of the Related Art A centrifugal processing apparatus that processes a material by revolving and rotating a storage container containing the material is known (see, for example, Patent Literature 1). In this centrifugal processing device, the material is stirred by making use of the centrifugal force acting on the material in the storage container by causing the storage container to revolve and rotate on its own axis, and the air bubbles contained in the material are released and degassed. etc.

JP 2013-154273 A Japanese Patent No. 4084493

It is known that in this centrifugal processing device, the processing effect varies depending on the ratio of rotation to revolution (hereinafter referred to as "rotation/revolution ratio"). For example, it is known that when the rotation/revolution ratio is relatively large, stirring becomes dominant, and when the rotation/revolution ratio is relatively small, defoaming becomes dominant.

Therefore, in this centrifugal processing apparatus, development of a means for easily changing the rotation/revolution ratio to various different ones is expected.

One aspect of the present invention is a device for processing materials stored in a storage container by causing the storage container to rotate while revolving. It is an object of the present invention to provide a processing apparatus.

(1) In the centrifugal processing apparatus according to the present invention, a revolving body rotatable about its revolution axis holds a storage container rotatable about its rotation axis, so that the material stored in the storage container is A centrifugal processing device that performs processing by applying a revolution force and a rotation force, wherein a central shaft that can rotate independently of the revolution body around the revolution axis, and a rotation force is applied to the revolution body, a driving unit that determines the rotational speed of the storage container based on the rotational speed difference between the revolving body and the central shaft; and a transmission mechanism capable of transmitting rotational force between the revolving body and the central shaft. , the transmission mechanism includes a sub-shaft rotatable about a rotation axis, a transmission section capable of transmitting a rotational force between the revolving body and the sub-shaft, and a sub-shaft rotatable about the rotation axis. A selected portion rotatable independently and a selected portion rotatable together with the secondary shaft are selected and rotated together to transmit rotational force between the secondary shaft and the central shaft. and a selection unit for enabling.

ADVANTAGE OF THE INVENTION According to this invention, the centrifugal processing apparatus which can be simply changed to various rotation-revolution ratios can be provided.

(2) In this centrifugal processing apparatus, a plurality of the selected portions are provided, and the selection portion selects any one of the selected portions to change the rotation ratio of the central axis with respect to the revolving body. good too.

(3) In this centrifugal processing apparatus, the transmission mechanism may further include a restraining portion that restrains the central shaft instead of transmitting the rotational force from the revolving body to the central shaft.

The figure for demonstrating the stirring-defoaming apparatus which concerns on embodiment. The figure for demonstrating the stirring-defoaming apparatus which concerns on embodiment. The figure for demonstrating the stirring-defoaming apparatus which concerns on embodiment. The figure for demonstrating the stirring-defoaming apparatus which concerns on embodiment. The figure for demonstrating the stirring-defoaming apparatus which concerns on embodiment.

Embodiments to which the present invention is applied will be described below with reference to the drawings. However, the present invention is not limited to the following embodiments. That is, not all configurations described in the following embodiments are essential to the present invention. In addition, the present invention includes any combination of the following contents.

(1) Configuration of Centrifugal Processing Apparatus 1 First, the configuration of a centrifugal processing apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 to 5. FIG. Here, FIGS. 1 to 3 are schematic diagrams of the centrifugal processing apparatus 1. FIG.

(a) support box 3
As shown in FIG. 1, the centrifugal processing apparatus 1 has a support box 3 horizontally supported by a base 2 forming the bottom of the housing via an anti-vibration spring 4 .

(b) revolving body 10
The centrifugal processing device 1 includes a revolving body 10 as shown in FIG. The revolving body 10 is configured to be rotatable around a predetermined rotation axis. In the present embodiment, the revolving body 10 is configured to be rotatable about a vertically extending imaginary straight line (revolution axis L1), as shown in the drawing. However, the revolving body 10 can also be configured to rotate about a horizontally extending straight line (not shown). The revolving body 10 has a rectangular frame shape and has a lower frame surface 12, an upper frame surface 14, and left and right side frame surfaces 16,16.

(c) container holder 20
The centrifugal processing device 1 includes a container holder 20 as shown in FIG. The container holder 20 plays a role of holding the storage container 100, and is capable of accommodating the storage container 100 therein by being formed so that it can be opened and closed downward. In this embodiment, the container holder 20 is supported by a storage container support frame 18 formed between the left and right side frame surfaces 16, 16 of the revolving body 10 so as to be inclined at 45 degrees with respect to the revolution axis L1. be. Specifically, the container holder 20 has a rotating shaft 22 projecting from the upper end side, and a rotating shaft bearing unit 24 arranged at a position where the rotating shaft 22 intersects the revolution axis L1 of the container support frame 18. supported by As a result, the container holder 20 can rotate (rotate) with respect to the revolution body 10 about an imaginary straight line (rotational axis L2) that intersects the revolution axis L1.

Here, in the present embodiment, the revolution axis L1 and the rotation axis L2 are configured to intersect at an angle of 45 degrees. However, the angle formed by the revolution axis L1 and the rotation axis L2 is not limited to 45 degrees, and may be an arbitrary angle. For example, the angle formed by the revolution axis L1 and the rotation axis L2 can be changed by variously changing the formation angle of the storage container support frame 18 with respect to the revolution axis L1 (not shown). Access to the container holder 20 is made possible via a freely openable/closable lid portion (not shown) provided on the opposing surface of the support box body 3 facing the container holder 20 .

(d) Counterweight 30
The centrifugal processing device 1 includes a counterweight 30 as shown in FIG. The counterweight 30 is for stably operating the centrifugal processing apparatus 1, and can change the distance from the revolution axis L1. Specifically, the counterweight 30 is provided on the side of the side frame surface 16 of the revolving body 10 facing the container holder 20, and is formed so as to move toward and away from the revolving axis L1 by a known mechanism. Access to the counterweight 30 is made possible through an openable and closable cover (not shown) provided on the opposing surface of the support box body 3 facing the counterweight 30 .

(e) Revolution drive mechanism 40
The centrifugal processing device 1 includes a revolution driving mechanism 40, as shown in FIG. The revolution drive mechanism 40 has a revolution drive motor 42 fixed to the bottom surface of the bottom plate 3 a of the support box 3 . The revolution drive motor 42 can impart a rotational force to a revolution shaft 43 (one of the components of the revolution drive mechanism 40) projecting from the lower frame surface 12 of the revolution body 10 along the revolution axis L1. As a result, the revolving body 10 can be rotated around the revolution axis L1. That is, the revolution drive motor 42 can revolve the container holder 20 (storage container 100) around the revolution axis L1.

The revolution drive mechanism 40 also has a revolution shaft bearing unit 44 for allowing the revolution body 10 to rotate freely. Specifically, the revolution shaft bearing unit 44 is provided between the projection 19 cylindrically projecting from the upper frame surface 14 of the revolution body 10 along the revolution axis L1 and the top plate 3 b of the support box 3 . Thereby, the revolution shaft bearing unit 44 enables the revolution body 10 to rotate with respect to the support box body 3 .

(f) rotation drive mechanism 50
The centrifugal processing device 1 includes a rotation driving mechanism 50 as shown in FIG. The rotation drive mechanism 50 will be described below. The rotation drive mechanism 50 constitutes a drive unit together with the revolution drive mechanism 40 .

The rotation drive mechanism 50 has a center shaft 52a passing through the top plate 3b of the support box 3 in alignment with the revolution axis L1, and a sun gear 52 for rotation fixed to the center shaft 52a. Specifically, the center shaft 52 a is supported by a center shaft bearing unit 52 b provided in the projecting portion 19 of the revolution body 10 so as to be rotatable with respect to the revolution body 10 . Thereby, the center shaft 52a can rotate independently with respect to the revolving body 10. As shown in FIG.

The rotation drive mechanism 50 has a satellite gear 54 for rotation fixed to the rotation shaft 22 . Specifically, the satellite gear 54 for rotation is fixed to the opposite side of the rotation shaft 22 from the container holder 20 across the rotation shaft bearing unit 24, and meshes with the sun gear 52 for rotation in the form of internal teeth. Therefore, the satellite gear 54 for rotation rotates together with the revolving body 10 about the revolution axis L1, and also rotates about the rotation axis L2 based on the difference in rotational speed from the sun gear 52 for rotation. The rotation about the rotation axis L2 causes the rotation satellite gear 54 to rotate (rotate) the container holder 20 (storage container 100) about the rotation axis L2. Here, the rotation speed S3 of the rotation of the satellite gear 54 for rotation around the rotation axis L2 is determined by Equation (1). The direction of rotation of the satellite gear 54 for rotation about the axis of rotation L2 is determined by the value of "rotational speed S1-rotational speed S2" because it meshes with the sun gear 52 for rotation in the form of internal teeth. is positive, the direction of rotation of the revolving body 10 is opposite.

ここで、Ｓ１：公転体１０の回転速度（ｒｐｍ）
Ｓ２：自転用太陽歯車５２（中心軸５２ａ）の回転速度（ｒｐｍ）
Ｓ３：自転用衛星歯車５４（容器ホルダ２０）の回転速度（ｒｐｍ）
Ｒ１：自転用太陽歯車５２に対する自転用衛星歯車５４の回転比

Here, S1: rotation speed (rpm) of revolution body 10
S2: Rotational speed (rpm) of the sun gear 52 for rotation (central shaft 52a)
S3: Rotational speed (rpm) of satellite gear 54 for rotation (container holder 20)
R1: rotation ratio of satellite gear 54 for rotation to sun gear 52 for rotation

(g) transmission mechanism 60
The centrifuge 1 includes a transmission mechanism 60, as shown in FIGS. 1-3. The transmission mechanism 60 will be described below.

The transmission mechanism 60 has a secondary shaft 62 rotatable around a predetermined rotation axis. In the present embodiment, as illustrated, the sub-shaft 62 is configured to be rotatable about an imaginary straight line (rotational axis L3) extending parallel to the revolution axis L1. Specifically, the sub-shaft 62 is supported by a sub-shaft bearing unit 64 arranged on the top plate 3 b of the support box 3 . This allows the secondary shaft 62 to rotate.

The transmission mechanism 60 has a transmission portion 65 capable of transmitting rotational force between the revolving body 10 and the subshaft 62 . Specifically, the transmission part 65 includes a first transmission element 66 fixed to the protruding part 19 of the revolving body 10 and rotatable together with the revolving body 10 , and a second transmission element 66 fixed to the subshaft 62 and rotatable together with the subshaft 62 . 2 transmitter 68 . The transmission portion 65 enables transmission of rotational force between the revolving body 10 and the sub shaft 62 by transmitting rotational force between the first transmission element 66 and the second transmission element 68 .

The transmission mechanism 60 has a first selected portion 70a and a second selected portion 70b that are rotatable independently of the secondary shaft 62 about the rotation axis L3. Specifically, the first selected portion 70 a and the second selected portion 70 b are one of the selected portions, respectively, and are supported by selected portion bearing units 72 a and 72 b arranged on the sub shaft 62 . As a result, the first selected portion 70a and the second selected portion 70b can rotate independently of the secondary shaft 62 around the rotation axis L3. The first selected portion 70a is arranged closer to the second transmitter 68, and the second selected portion 70b is arranged farther from the second transmitter 68. As shown in FIG.

The transmission mechanism 60 has a selection portion 75 rotatable together with the secondary shaft 62 about the rotation axis L3. Specifically, the selection portion 75 is supported by a support portion 76 arranged on the sub-shaft 62 so as to rotate together with the sub-shaft 62, and is movable within a predetermined range along the rotation axis L3. . Further, the selection section 75 can select the first selected section 70a or the second selected section 70b by moving.

Specifically, as shown in FIG. 2, the selection unit 75 selects the first selected part 70a by approaching and coupling with the first selected part 70a. As a result, the selection portion 75 can rotate together with the first selected portion 70 a , and by extension, the first selected portion 70 a can rotate together with the sub shaft 62 . As a result, the selecting portion 75 also utilizes the third transmitting element 78a fixed to the central shaft 52a and capable of transmitting rotational force to the first selected portion 70a, so that the auxiliary shaft 62 and the central shaft 52a Allows transmission of rotational force between Note that the rotational speed S2 of the central shaft 52a in this case is determined by Equation (2).

ここで、Ｒ２：公転体１０に対する副軸６２の回転比（伝達部６５利用）
Ｒ３：第１被選択部７０ａ選択時の副軸６２に対する中心軸５２ａの回転比

Here, R2: the rotation ratio of the secondary shaft 62 to the revolving body 10 (using the transmission section 65)
R3: Rotational ratio of central shaft 52a to secondary shaft 62 when first selected portion 70a is selected

Also, as shown in FIG. 3, the selection section 75 selects the second selected section 70b by approaching and coupling with the second selected section 70b. As a result, the selection portion 75 can rotate together with the second selected portion 70 b , and by extension, the second selected portion 70 b can rotate together with the sub shaft 62 . As a result, the selector 75 also utilizes the fourth transmitter 78b that is fixed to the central shaft 52a and capable of transmitting rotational force to the second selected portion 70b, so that the auxiliary shaft 62 and the central shaft 52a Allows transmission of rotational force between Note that the rotational speed S2 of the central shaft 52a in this case is determined by Equation (3).

ここで、Ｒ４：第２被選択部７０ｂ選択時の副軸６２に対する中心軸５２ａの回転比

Here, R4: the rotation ratio of the central shaft 52a to the secondary shaft 62 when the second selected portion 70b is selected

Note that the selection section 75 can select neither the first selected section 70a nor the second selected section 70b. In this case, the center shaft 52a tries to rotate together with the revolving body 10 because the sun gear 52 for rotation and the satellite gear 54 for rotation are meshed.

The transmission mechanism 60 has a restraining portion 80 capable of restraining the central shaft 52a. Note that the rotational speed S2 of the central shaft 52a when the restraining portion 80 restrains the central shaft 52a is 0 (rpm).

The transmission mechanism 60 has a selection section 75 and a control section 85 capable of controlling the restraint section 80 . Table 1 summarizes the rotation speed S2 of the central shaft 52a for each state of the selection unit 75 and the restraint unit 80 that can be controlled by the control unit 85. As shown in the table, the control unit 85 causes the selection unit 75 to select the first selected unit 70a or the second selected unit 70b in order to prevent the operation from becoming unstable. A setting that constrains the central shaft 52a by the portion 80 is prohibited.

As is clear from Table 1, the control unit 85 can switch the rotation speed S2 of the central shaft 52a between four values by controlling the selection unit 75 and the restraint unit 80. FIG. That is, the control unit 85 can switch the rotation speed S3 of the satellite gear 54 (container holder 20) for rotation around the rotation axis L2 determined by Equation 1 to four values (the above is the value of the revolution body 10 when the rotational speed S1 is constant).

The transmission mechanism 60 can be configured as shown in FIGS. 4 and 5, for example. The following description will focus on the parts appearing only in these figures. 4 is a partially omitted plan view of the centrifugal processing apparatus 1 (the second selected portion 70b, the third transmitter 78a, etc. are omitted for the sake of easy explanation). 5 is an AA end view in FIG. 4 (for ease of explanation, the fourth side 92d is additionally indicated by a dashed line, etc.).

The selection portion 75 includes protrusions 75a and 75b. The selecting portion 75 selects the first selected portion 70a by inserting the protrusion 75a into the receiving portion 70c of the first selected portion 70a. Further, the selecting portion 75 selects the second selected portion 70b by inserting the protrusion 75b into the receiving portion 70d of the second selected portion 70b.

Control unit 85 includes a control motor 88 that drives eccentric cam 86 . Specifically, the eccentric cam 86 is eccentrically attached to the control motor 88 (its drive shaft). As a result, the centrifugal area 86 a of the eccentric cam 86 that is farthest from the drive shaft of the control motor 88 moves as the control motor 88 operates. Note that the control motor 88 may be a pulse motor or the like that operates in response to a user's instruction or the like.

The control section 85 includes a selection arm 92 rotatably supported by a support 90 to cause the selection section 75 to select the first selected section 70a or the second selected section 70b. More specifically, the selection arm 92 branches at its first end into a first side 92a and a second side 92b with the eccentric cam 86 interposed therebetween. The selection arm 92 is branched into a third side 92c and a fourth side 92d in a direction 90 degrees different from the first end side at the second end side. The selection arm 92 rotatably supports a support member 92f that rotatably supports the selection portion 75 via a bearing unit 92e between the third side 92c and the fourth side 92d.

The selection arm 92 rotates about the support body 90 when the centrifugal region 86a of the eccentric cam 86 contacts the first side 92a. Then, the selection arm 92 moves the selection portion 75 toward the first selected portion 70a via the support member 92f. As a result, the selection section 75 selects the first selected section 70a.

When the centrifugal region 86a of the eccentric cam 86 abuts on the second side 92b, the selection arm 92 rotates about the support 90 in the opposite direction to when it abuts on the first side 92a. Then, the selection arm 92 moves the selection portion 75 toward the second selected portion 70b via the support member 92f. As a result, the selection section 75 selects the second selected section 70b.

When the centrifugal region 86a of the eccentric cam 86 contacts neither the first side 92a nor the second side 92b, the selection arm 92 moves the selection portion 75 through the support member 92f to the first selected side. A neutral position between the portion 70a and the second selected portion 70b. Accordingly, the selecting section 75 selects neither the first selected section 70a nor the second selected section 70b.

The control unit 85 includes a restraining arm 96 that is movably supported within a predetermined range by supports 94a and 94b in order to restrain the center shaft 52a by the restraining unit 80. As shown in FIG. Specifically, the restraining arm 96 is formed in a substantially L-shape in a plan view, and the first end side 96a thereof is arranged at a position where it can come into contact with the centrifugal region 86a of the eccentric cam 86 . On the other hand, the restraining arm 96 has, on its second end side 96b, a restraining portion 80 that can be inserted into the receiving portion 52c formed on the central shaft 52a. The captive arm 96 formed in this way moves the second end side 96b toward the central axis 52a as the centrifugal region 86a of the eccentric cam 86 contacts the first end side 96a. At this time, the restraint arm 96 has the elastically deformable portion 96c between the bent portion and the second end portion 96b, so that the restraint portion 80 can be smoothly inserted into the receiving portion 52c. As a result, the restraining arm 96 restrains the central shaft 52a in the restraining portion 80 (FIGS. 4 and 5 show this state).

The functions of the controller 85 described above can be summarized as follows. First, when the centrifugal area 86a of the eccentric cam 86 contacts the first side 92a of the selection arm 92 (that is, the centrifugal area 86a is at the 12 o'clock position in FIG. 4), the selection portion 75 moves toward the first selected portion 70a. is selected, the restraint part 80 releases the central shaft 52a to allow its rotation. When the centrifugal region 86a contacts the second side 92b of the selection arm 92 (that is, the centrifugal region 86a is positioned at 6 o'clock in FIG. 4), the selector 75 selects the second selected portion 70b. , the restraining portion 80 releases the central shaft 52a to allow its rotation. Further, when the distal region 86a abuts the first end side 96a of the restraining arm 96 (i.e., the distal region 86a is at the 3 o'clock position in FIG. 4), the selector 75 selects none, and The restraining portion 80 restrains the central shaft 52a to prohibit its rotation. It should be noted that when the centrifugal region 86a contacts neither the first side 92a or the second side 92b of the selection arm 92 nor the first end side 96a of the restraining arm 96 (that is, the centrifugal region 86a 4), the selector 75 does not select anything, and the restrictor 80 releases the central shaft 52a to allow its rotation.

(2) Storage container 100
Next, a storage container 100 applicable to this embodiment will be described with reference to FIG.

The storage container 100 is a container in which the material M is stored. can be anything. Further, the storage container 100 may be provided with an idling prevention mechanism (not shown) for preventing idling of the container holder 20 . As the idling prevention mechanism, any known mechanism can be adopted.

(3) Material M
The material M that can be applied to the present embodiment is not particularly limited as long as it behaves as a fluid, and its composition and application are not particularly limited. As the material M, a material containing only a fluid component (resin or the like), a material containing a granular component (powder component) in addition to the fluid component, or the like can be applied. Examples of the material M include adhesives, sealants, liquid crystal materials, mixed materials containing LED phosphors and resins, solder pastes, dental impression materials, dental cements (filling agents, etc.), and various liquid agents. materials can be applied. Also, as the material M, it is possible to apply a granular (powder) material and media (for example, zirconia balls) for pulverizing it. Alternatively, as material M, it is also possible to apply a fluid to be emulsified.

(4) Method for processing material M In the method for processing material M according to the present embodiment, first, the storage container 100 containing the material M is held by the container holder 20 . In the transmission mechanism 60 , the restricting section 80 controls the selecting section 75 and the restricting section 80 . Here, the rotation speed S2 of the central shaft 52a (rotating sun gear 52) for each state of the selection portion 75 and the restraint portion 80 is as shown in Table 1 described above. Based on the same table and Equation 1 described above, the rotation/revolution ratio for each state of the selection unit 75 and the restraint unit 80 is as shown in Table 2.

That is, in the centrifugal processing apparatus 1, the rotation/revolution ratio suitable for processing the material M can be set using the transmission mechanism 60. FIG.

Subsequently, by driving the revolution drive motor 42 of the revolution drive mechanism 40, the material M stored in the storage container 100 is applied with the revolution force and the rotation force of the rotation/revolution ratio set above. Thereby, the material M is subjected to processing such as stirring, defoaming, dispersion, pulverization, and emulsification. The rotation/revolution ratio can be changed during the processing of the material M according to the processing status of the material M. In addition, after finishing the processing of the material M, the material M can be used by stopping the revolution drive motor 42 and removing the storage container 100 from the container holder 20 .

(5) Effects According to the centrifugal processing device 1, by providing the transmission mechanism 60, it is possible to easily change the rotation/revolution ratio to various different ones. This action will be described in detail below.

In the transmission mechanism 60, the control unit 85 appropriately controls the selection unit 75 to determine whether or not the rotational force is transmitted from the revolving body 10 to the central shaft 52a via the sub shaft 62, and whether or not the rotational force is transmitted. The rotation ratio of the central axis 52a with respect to the body 10 can be changed. In addition, by appropriately controlling the restraining section 80 by the control section 85, it is possible to change whether or not the central shaft 52a is restrained.

Due to this, the centrifugal processing apparatus 1 can be easily changed to various different rotation/revolution ratios, as shown in Table 2 described above.

Further, in the transmission mechanism 60, the selector 75 and the restraint are arranged so as to restrain the central shaft 52a only when the control unit 85 does not transmit the rotational force from the revolving body 10 to the central shaft 52a via the secondary shaft 62. control unit 80; Therefore, the centrifugal processing apparatus 1 can realize stable operation.

Further, in the centrifugal processing device 1, it is easy to change the selectable rotation/revolution ratio by appropriately changing R4 and the like. For example, when the second selected portion 70b and the fourth transmission element 78b are configured by gears, the change of R4 can be realized by appropriately changing them to gears having different numbers of teeth.

Furthermore, in the centrifugal processing device 1 , energy is regenerated in the revolution shaft 43 by rotating the center shaft 52 a slower than the revolution body 10 . As a result, in the centrifugal processing apparatus 1, the load on the revolution drive motor 42 can be reduced, and power saving can be achieved.

(6) Modification In the centrifugal processing device 1, the first transmitter 66, the second transmitter 68, the first selected portion 70a, the second selected portion 70b, the third transmitter 78a, and the fourth transmitter 78b are , gears. In this case, an intermediate gear (not shown) may be appropriately arranged between the first transmission element 66 and the second transmission element 68 or the like. In addition, it is also assumed that a chain or the like is used.

Also, the first transmitter 66, the second transmitter 68, the first selected portion 70a, the second selected portion 70b, the third transmitter 78a, and the fourth transmitter 78b may be configured by pulleys. Naturally, when configured in this manner, the belt must be appropriately routed.

Further, the selection section 75 may be configured to select the first selected section 70a or the second selected section 70b using a clutch mechanism (not shown) so as to rotate together. By configuring in this way, there is an effect that the rotation/revolution ratio can be easily changed even while the revolving body 10 is rotating.

It is also assumed that more selected parts are provided. The centrifugal processor 1 can be changed to a greater number of rotation/revolution ratios by configuring the selection unit 75 to select selected portions that achieve a desired rotation/revolution ratio from among these. can be done.

Further, the centrifugal processing device 1 may be configured such that the third transmission element 78a and the fourth transmission element 78b are fixed to the projecting portion 19 and the first transmission element 66 is fixed to the center shaft 52a. The centrifugal processing apparatus 1 configured in this way enables the following operations.

1) When the selection portion 75 selects the first selected portion 70a, the rotational force is transmitted between the third transmitter 78a fixed to the projecting portion 19 and the first selected portion 70a. Rotational force is transmitted between the revolving body 10 and the subshaft 62 . By transmitting the rotational force between the second transmission element 68 and the first transmission element 66 fixed to the central shaft 52a, the rotational force is transmitted between the secondary shaft 62 and the central shaft 52a. . With these components, rotational force is transmitted between the revolving body 10 and the center shaft 52a.
2) When the selection portion 75 selects the second selected portion 70b, the rotation force is transmitted between the fourth transmission element 78b fixed to the projecting portion 19 and the second selected portion 70b. Rotational force is transmitted between the revolving body 10 and the subshaft 62 . By transmitting the rotational force between the second transmission element 68 and the first transmission element 66 fixed to the central shaft 52a, the rotational force is transmitted between the secondary shaft 62 and the central shaft 52a. . With these components, rotational force is transmitted between the revolving body 10 and the center shaft 52a.
3) When the selecting portion 75 selects neither the first selected portion 70a nor the second selected portion 70b and the restricting portion 80 does not restrict the central shaft 52a, the central shaft 52a rotates together with the revolving body 10. do.
4) When the selecting portion 75 selects neither the first selected portion 70a nor the second selected portion 70b and the restraining portion 80 restrains the central shaft 52a, the central shaft 52a does not rotate (the central shaft 52a is 0 (rpm)). At this time, the restraining portion 80 may directly restrain the central shaft 52a. Alternatively, the restraining portion 80 may restrain the sub shaft 62 and also utilize the second transmission element 68 and the first transmission element 66 to restrain the center shaft 52a.

As described above, even in the centrifugal processing apparatus 1 configured as described above, the rotational speed S2 of the central shaft 52a can be switched to easily change to various rotation/revolution ratios.

Moreover, this technical idea can also be applied to a centrifugal processing apparatus of the type disclosed in Patent Document 2. In such a centrifugal processing device, a rotating body is fixed to the revolution shaft 43 . The rotating body has two arms, and a rotating shaft 22 to which the storage container 100 can be attached is rotatably attached to the centrifugal side of at least one arm. Moreover, in this centrifugal processing apparatus, an annular body that can rotate about the revolution shaft 43 is provided. The annular body can receive the rotational force of the revolution shaft 43 via the subshaft 62 . In addition, it is possible to transmit the rotational force between the annular body and the rotation shaft 22 as well. As a result, in this centrifugal processor, the rotation speed of the rotation shaft 22 is determined according to the rotation speed difference between the revolution shaft 43 and the annular body.

In the centrifugal processing apparatus configured as described above, the first transmission element 66 is fixed to the revolution shaft 43, the third transmission element 78a and the fourth transmission element 78b are fixed to the annular body, and the annular body can be constrained by the constraining portion 80 . The centrifugal processing device in this case can perform the following operations.

1) When the selection unit 75 selects the first selected portion 70a, by transmitting the rotational force between the first selected portion 70a and the third transmitter 78a fixed to the annular body, the secondary Rotational force is transmitted between the shaft 62 and the annular body. In addition, by transmitting the rotational force between the first transmission element 66 and the second transmission element 68 fixed to the revolution shaft 43, the rotation force is also transmitted between the revolution shaft 43 and the secondary shaft 62. will be By these means, torque is transmitted between the revolution shaft 43 and the annular body.
2) When the selection unit 75 selects the second selected portion 70b, the second selected portion 70b and the fourth transmission element 78b fixed to the ring-shaped body transmit the rotational force. Rotational force is transmitted between the shaft 62 and the annular body. In addition, by transmitting the rotational force between the first transmission element 66 and the second transmission element 68 fixed to the revolution shaft 43, the transmission of the rotational force between the revolution shaft 43 and the secondary shaft 62 is also possible. done. By these means, torque is transmitted between the revolution shaft 43 and the annular body.
3) When the selection section 75 selects neither the first selected section 70a nor the second selected section 70b and the restraining section 80 does not restrain the annular body, the annular body rotates together with the revolving body 10 .
4) When the selection section 75 selects neither the first selected section 70a nor the second selected section 70b and the restraining section 80 restrains the annular body, the annular body does not rotate (the rotational speed of the annular body becomes 0 (rpm)).

As described above, even in the centrifugal processing apparatus configured as described above, the rotational speed of the annular body can be switched to easily change to various different rotation/revolution ratios. In addition, in the centrifugal processing device, it is also possible to fix the first transmitter 66 to the annular body and to fix the third transmitter 78 a and the fourth transmitter 78 b to the revolution shaft 43 .

DESCRIPTION OF SYMBOLS 1... Centrifugal processing apparatus 2... Base 3... Support box 3a... Bottom plate 3b... Top plate 4... Anti-vibration spring 10... Revolving body 12... Lower frame surface 14... Upper frame surface 16 ... Side frame surface 18 ... Storage container support frame 19 ... Protrusion 20 ... Container holder 22 ... Rotation shaft 24 ... Rotation shaft bearing unit 30 ... Counterweight 40 ... Revolution drive mechanism 42 ... Revolution drive motor , 43... Revolution shaft, 44... Revolution shaft bearing unit, 50... Rotation drive mechanism, 52... Sun gear for rotation, 52a... Central shaft, 52b... Central shaft bearing unit, 52c... Receiving part, 54... Satellite gear for rotation, 60... Transmission mechanism 62... Counter shaft 64... Counter shaft bearing unit 65... Transmission part 66... First transmission element 68... Second transmission element 70a... First selected part 70b... Second selected part Part 70c... Receiving part 70d... Receiving part 72a... Selected part bearing unit 72b... Selected part bearing unit 75... Selecting part 75a... Protrusion 75b... Protrusion 76... Support part 78a... Third Transmitter 78b Fourth transmitter 80 Restriction part 85 Control part 86 Eccentric cam 86a Centrifugal region 88 Control motor 90 Support 92 Selection arm 92a First side 92b... Second side 92c... Third side 92d... Fourth side 92e... Bearing unit 92f... Support member 94a... Support body 94b... Support body 96... Restraint arm 96a... First end Side 96b... Second end side 96c... Elastic deformation part 100... Storage container L1... Revolution axis line L2... Rotation axis line L3... Rotation axis line M... Material

Claims (3)

a revolution axis rotatable around the revolution axis;
a rotor fixed to the revolution shaft and having two arms ;
a container holder that has a rotation axis, is rotatable about the rotation axis by being held by one arm of the rotating body, and is capable of holding a storage container containing a material;
an annular body rotatable about the revolution axis with respect to the revolution axis;
A rotational force is applied to the revolution shaft, and the rotational force can be transmitted between the annular body and the rotation shaft of the container holder, and based on the rotational speed difference between the revolution shaft and the annular body, a driving unit that determines the rotation speed of the container holder having the rotation axis ;
a transmission mechanism capable of transmitting rotational force between the revolution shaft and the annular body;
with
The transmission mechanism is
a secondary shaft rotatable about an axis of rotation;
a transmission section capable of transmitting rotational force between the revolution shaft and the sub-shaft;
a selected portion rotatable about the rotation axis independently of the sub shaft and capable of transmitting rotational force to and from the annular body ;
The selected portion is rotatable about the rotation axis together with the secondary shaft and is movable along the secondary shaft. a selection portion that enables transmission of rotational force to and from the annular body ;
a control unit that couples the selection unit to the selected unit to be selected by moving the selection unit along the secondary axis;
including
A plurality of the selected parts are provided,
The selection portion can be coupled to any of the selected portions, and selects the selected portion by coupling to any of the selected portions to change the rotation ratio of the annular body with respect to the revolution axis. centrifuge. a revolution axis rotatable around the revolution axis;
a rotor fixed to the revolution shaft and having two arms;
a container holder that has a rotation axis, is rotatable about the rotation axis by being held by one arm of the rotating body, and is capable of holding a storage container containing a material;
an annular body rotatable about the revolution axis with respect to the revolution axis;
A rotational force is applied to the revolution shaft, and the rotational force can be transmitted between the annular body and the rotation shaft of the container holder, and based on the rotational speed difference between the revolution shaft and the annular body, a driving unit that determines the rotation speed of the container holder having the rotation axis;
a transmission mechanism capable of transmitting rotational force between the revolution shaft and the annular body;
with
The transmission mechanism is
a secondary shaft rotatable about an axis of rotation;
a transmission section capable of transmitting rotational force between the annular body and the sub shaft;
a selected portion rotatable about the rotation axis independently of the sub-shaft and capable of transmitting rotational force to and from the revolution shaft;
The selected portion is rotatable about the rotation axis together with the secondary shaft and is movable along the secondary shaft. a selection portion that enables transmission of rotational force to and from the revolution axis;
a control unit that couples the selection unit to the selected unit to be selected by moving the selection unit along the secondary axis;
including
A plurality of the selected parts are provided,
The selection portion can be coupled to any of the selected portions, and selects the selected portion by coupling to any of the selected portions to change the rotation ratio of the annular body with respect to the revolution axis. centrifuge. a revolution shaft rotatable about the revolution axis; a rotor fixed to the revolution shaft and having two arms ; A container holder that is rotatable about a rotation axis by being held and can hold a storage container containing a material, an annular body that is rotatable about the revolution axis with respect to the revolution axis, and the revolution A rotational force is applied to the shaft, and the rotational force is transmitted between the annular body and the rotation shaft of the container holder, and the rotational speed difference between the revolution shaft and the annular body is used to rotate the rotation . A transmission mechanism applied to a centrifugal processing device, comprising:
a secondary shaft rotatable about an axis of rotation;
a transmission section capable of transmitting rotational force between the revolution shaft and the sub-shaft;
a selected portion rotatable about the rotation axis independently of the sub shaft and capable of transmitting rotational force to and from the annular body ;
The selected portion is rotatable about the rotation axis together with the secondary shaft and is movable along the secondary shaft. a selection portion that enables transmission of rotational force to and from the annular body ;
a control unit that couples the selection unit to the selected unit to be selected by moving the selection unit along the secondary axis;
including
A transmission mechanism capable of transmitting rotational force between the revolution shaft and the annular body,
A plurality of the selected parts are provided,
The selection portion can be coupled to any of the selected portions, and selects the selected portion by coupling to any of the selected portions to change the rotation ratio of the annular body with respect to the revolution axis. transmission mechanism.

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