Centrifugal drive and centrifugal apparatus

Abstract

The present application relates to an analytical instrument device, in particular to a centrifugal driving device and a centrifugal device. The centrifugal driving device comprises a first rotating disc, a second rotating disc, a first transmission mechanism, a second transmission mechanism and a driving mechanism; the driving mechanism drives the second rotating disc to rotate around its own rotation center; the first rotating disc is rotatably arranged on the second rotating disc, and the first rotating disc is connected with the second transmission mechanism through the first transmission mechanism; the first transmission mechanism and the second transmission mechanism can be switched between the rotating state and the locking state respectively, so that the first rotating disc rotates around its own rotation center when it rotates with the second rotating disc or is locked. The present application realizes that the first rotating disc rotates with the second rotating disc while it can rotate around its own rotation center or is locked; the first rotating disc only rotates when it realizes centrifugal operation, and rotates and rotates around its own rotation center when it realizes mixing operation; one machine completes the mixing and centrifugal separation operation of the sample, saves time and effort, and improves the efficiency of the experiment.

Description

Technical Field

[0001] This invention relates to the field of analytical instrument technology, and in particular to a centrifuge drive device and centrifuge equipment. Background Technology

[0002] In analytical chemistry experiments, the extraction and separation of analytes are standard procedures. Centrifugation, in particular, utilizes centrifugal force to separate substances with different specific gravities. Because centrifuges and similar equipment can generate very high angular velocities, the centrifugal force is much greater than gravity, making it easier for suspended solids in a solution to precipitate. Furthermore, since substances with different specific gravities experience different centrifugal forces, they settle at different rates, thus achieving separation. Centrifugation is the most commonly used biochemical separation method for biomolecules because different biomolecules have different volumes and densities, allowing them to settle and separate under varying centrifugal forces. With the development of life science technologies, centrifugation has become an indispensable separation technique in biochemistry and molecular biology.

[0003] Currently, the extraction process usually requires manual or machine shaking of the sample, followed by separation in a centrifuge. This requires multiple devices, which is time-consuming, labor-intensive, and reduces experimental efficiency. Summary of the Invention

[0004] This invention provides a centrifugation drive device and centrifugation equipment to solve at least one technical problem existing in the prior art, enabling the mixing, extraction and centrifugation of samples to be completed in one machine, saving time and effort and improving experimental efficiency.

[0005] The present invention provides a centrifugal drive device, comprising a first rotating disk, a second rotating disk, a first transmission mechanism, a second transmission mechanism, and a drive mechanism;

[0006] The output end of the drive mechanism is connected to the second rotating disk and is used to drive the second rotating disk to rotate around its own rotation center.

[0007] The first rotating disk is rotatably mounted on the second rotating disk, and the first rotating disk is connected to the second rotating disk through the first transmission mechanism. The first transmission mechanism and the second transmission mechanism can switch between a rotating state and a locked state, so that when the first rotating disk rotates synchronously with the second rotating disk, it can rotate or lock around its own rotation center.

[0008] According to a centrifugal drive device provided by the present invention, the first transmission mechanism includes a first transmission wheel and a first one-way clutch, the second transmission mechanism includes a second transmission wheel and a second one-way clutch, and the drive mechanism includes a first motor;

[0009] The first transmission wheel is connected to the second transmission wheel, and the first transmission wheel is connected to the first rotating disk via a first rotating shaft;

[0010] The second one-way clutch is disposed on the second shaft of the second drive wheel and is used to limit the rotation of the second drive wheel about the first direction;

[0011] The output end of the first motor is connected to the second rotating disk via a third rotating shaft;

[0012] The first one-way clutch is disposed on the first rotating shaft and is used to limit the first transmission wheel and the first rotating disk to rotate about the second direction, or the first one-way clutch is disposed between the third rotating shaft and the second transmission wheel and is used to limit the second transmission wheel to rotate synchronously only when the third rotating shaft rotates about the second direction;

[0013] The second direction is opposite to the first direction.

[0014] According to a centrifugal drive device provided by the present invention, it further includes a support platform, the drive mechanism is fixed to the support platform, the outer ring of the second one-way clutch is fixed to the support platform, and the inner ring of the second one-way clutch is connected to the second rotating shaft; the second rotating disk is provided with a through hole for mounting the first rotating shaft, the outer ring of the first one-way clutch is fixed in the through hole, and the inner ring of the first one-way clutch is connected to the first rotating shaft, or the outer ring of the first one-way clutch is connected to the second rotating shaft, and the inner ring of the first one-way clutch is connected to the third rotating shaft.

[0015] According to a centrifugal drive device provided by the present invention, the first transmission mechanism further includes a first support bearing, the first support bearing being coaxially arranged with the first rotating shaft, and the first support bearing being connected between the second rotating disk and the first rotating shaft;

[0016] The second transmission mechanism further includes a second support bearing, which is coaxially arranged with the second rotating shaft and connected between the support platform and the second rotating shaft.

[0017] According to a centrifugal drive device provided by the present invention, the drive mechanism further includes a second motor, which is connected to the second transmission mechanism for driving the second transmission mechanism to rotate or stop around its own rotation center.

[0018] According to a centrifugal drive device provided by the present invention, the support platform includes a support plate, a support column and a base plate, the support plate is supported on the base plate by the support column, the drive mechanism is fixed on the support plate, and the outer ring of the second one-way clutch is fixed on the support plate.

[0019] According to a centrifugal drive device provided by the present invention, the support platform includes a support plate, a column, a bracket, and a base plate. The support plate is supported on the base plate by the column. The drive mechanism is fixed to the support plate. The bracket is fixed to the support plate. The outer ring of the second one-way clutch is fixed to the bracket.

[0020] According to a centrifugal drive device provided by the present invention, the first one-way clutch and the second one-way clutch are respectively one of a one-way bearing, a ratchet structure and an electromagnetic clutch.

[0021] According to a centrifugal drive device provided by the present invention, the first transmission wheel and the second transmission wheel are bevel gears.

[0022] According to a centrifugal drive device provided by the present invention, the axis of the first rotating disk is arranged parallel to the axis of the second rotating disk, or at an angle to the axis of the second rotating disk.

[0023] The present invention also provides a centrifuge device, including: the centrifuge drive device provided in the embodiments of the present invention.

[0024] The centrifuge driving device provided by this invention includes a first rotating disk, a second rotating disk, a first transmission mechanism, a second transmission mechanism, and a driving mechanism. The driving mechanism provides driving force for the entire device. The first rotating disk can rotate synchronously with the second rotating disk. The rotation or stopping of the first rotating disk is achieved by switching between the rotating state and the locked state of the first and second transmission mechanisms. Centrifugation is achieved when the first rotating disk does not rotate itself but rotates synchronously with the second rotating disk. Mixing is achieved when the first rotating disk rotates around itself and rotates with the second rotating disk. Thus, the mixing and centrifugation separation of samples can be completed in one machine, saving time and effort and improving the efficiency of centrifugation experiments.

[0025] Furthermore, the centrifuge device provided by the present invention also possesses the various advantages described above due to the centrifugal drive device described above.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 provided by the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of Embodiment 2 provided by the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of Embodiment 3 provided by the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of Embodiment 4 provided by the present invention;

[0032] Figure 5 This is one of the assembly embodiments of the first and second rotating disks in the centrifugal drive device provided by the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of Embodiment 5 provided by the present invention.

[0034] Figure label:

[0035] 1. Second rotating disk; 2. First rotating disk; 3. First one-way clutch; 4. Third rotating shaft; 5. Second rotating shaft; 6. First transmission wheel; 7. Second transmission wheel; 8. Second support bearing; 9. First motor; 10. Support plate; 11. Second one-way clutch; 12. Shock absorber; 13. Support column; 14. Base plate; 15. Fixed seat; 16. Bearing cover; 17. First support bearing; 18. First rotating shaft; 19. Bracket; 20. First pulley; 21. Second pulley; 22. Transmission belt; 23. Second motor. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0037] See now Figures 1 to 6 The embodiments of the present invention will be described below. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any limitation on the present invention.

[0038] like Figures 1 to 6 As shown, the present invention provides a centrifugal drive device, including a first rotating disk 2, a second rotating disk 1, a first transmission mechanism, a second transmission mechanism, and a drive mechanism. Multiple first rotating disks 2 may be arranged circumferentially along the second rotating disk 1.

[0039] The output end of the drive mechanism is connected to the second rotating disk 1 and is used to drive the second rotating disk 1 to rotate around its own rotation center. The first rotating disk 2 is rotatably mounted on the second rotating disk 1 and is connected to the second transmission mechanism through the first transmission mechanism. The first transmission mechanism and the second transmission mechanism can switch between a rotating state and a locked state, so that the first rotating disk 2 can rotate around its own rotation center or be locked when it rotates synchronously with the second rotating disk 1.

[0040] Specifically, the drive mechanism serves as the power source for the centrifugal drive device of the present invention, driving the first rotating disk 2 and the second rotating disk 1 to rotate. The drive mechanism can be driven by a motor. The drive mechanism drives the second rotating disk 1 to rotate around itself, and the first rotating disk 2 is mounted on the second rotating disk 1 and rotates synchronously with it.

[0041] Furthermore, the first rotating disk 2 can also rotate around itself. When the first rotating disk 2 moves synchronously with the second rotating disk 1, the rotation of the first rotating disk 2 around itself is controlled by the first transmission mechanism and the second transmission mechanism. Specifically, both the first transmission mechanism and the second transmission mechanism can rotate or lock. Both can use one-way rotation limiting components. The one-way rotation limiting function of the two components and the forward and reverse rotation of the drive mechanism are used to realize the rotation or stopping of the first rotating disk around itself. The components that realize the above-mentioned one-way limiting function can be one-way bearings or clutches, etc., which will be specifically described in the following embodiments.

[0042] It is understandable that the first rotating disk 2 is used to place and carry the sample. When the first rotating disk 2 does not rotate on its own but moves synchronously with the second rotating disk 1, the sample can be centrifuged. When the first rotating disk 2 rotates around its own rotation center and rotates with the second rotating disk 1, the sample can be mixed.

[0043] The present invention provides a centrifugation drive device, comprising a first rotating disk, a second rotating disk, a first transmission mechanism, a second transmission mechanism, and a drive mechanism. The drive mechanism provides driving force for the entire device. The first rotating disk can rotate synchronously with the second rotating disk. The rotation or stopping of the first rotating disk is achieved by switching between the rotating state and the locked state of the first and second transmission mechanisms. Centrifugation is achieved when the first rotating disk does not rotate itself but rotates synchronously with the second rotating disk. Mixing is achieved when the first rotating disk rotates around itself and rotates with the second rotating disk. Thus, the mixing and centrifugation separation of samples can be completed in one machine, saving time and effort and improving the efficiency of centrifugation experiments.

[0044] Example 1:

[0045] In this embodiment, the first transmission mechanism includes a first transmission wheel 6 and a first one-way clutch 3, the second transmission mechanism includes a second transmission wheel 7 and a second one-way clutch 11, and the drive mechanism includes a first motor 9. In this embodiment, the one-way rotation limit function of the first and second transmission mechanisms is achieved through the one-way clutches, and a single motor drives the entire centrifugal drive device. The first one-way clutch 3 and the second one-way clutch 11 are respectively one of a one-way bearing, a ratchet structure, and an electromagnetic clutch. In the following embodiments, the one-way clutch is described in the form of a one-way bearing; that is, the first one-way clutch 3 adopts the first one-way bearing of the following embodiment, and the second one-way clutch 11 adopts the second one-way bearing of the following embodiment.

[0046] Specifically, the first transmission wheel 6 is connected to the second transmission wheel 7. The first transmission wheel 6 is connected to the first rotating disk 2 via the first rotating shaft 18. The first one-way clutch 3 (i.e., the first one-way bearing) is located on the first rotating shaft 18 and is used to limit the first transmission wheel 6 and the first rotating disk 2 to rotate only in a second direction. The second one-way clutch 11 (i.e., the second one-way bearing) is located on the second rotating shaft 5 of the second transmission wheel 7 and is used to limit the second transmission wheel 7 to rotate only in a first direction. The output end of the first motor 9 is connected to the second rotating disk 1 via the third rotating shaft 4 and can rotate clockwise or counterclockwise. The second direction is opposite to the first direction.

[0047] Furthermore, the axis of the first rotating disk 2 is arranged parallel to the axis of the second rotating disk 1. Of course, the axis of the first rotating disk 2 can also be arranged at an angle to the axis of the second rotating disk 1. In this embodiment, the axis of the first rotating disk 2 is arranged parallel to the axis of the second rotating disk 1.

[0048] Taking the example that the inner ring of the first one-way bearing (in the reference frame shown in the figure) can only rotate clockwise and the inner ring of the second one-way bearing (in the reference frame shown in the figure) can only rotate counterclockwise, unidirectional rotation of the inner rings of both bearings can be achieved by fixing the outer rings of the first and second one-way bearings. Specifically, the outer ring of the first one-way bearing is fixed inside the through hole of the second rotating disk 1, and the outer ring of the second one-way bearing is fixed on the fixed seat 15. Figure 1As shown, when the first motor 9 is turned on and rotates clockwise, it drives the second rotating disk 1 to rotate clockwise around its own rotation center via the third rotating shaft 4, while the first rotating disk 2 rotates clockwise along with it. When the first rotating disk 2 rotates clockwise with the second rotating disk 1 around the third rotating shaft 4, the first transmission wheel 6 and the second transmission wheel 7 mesh with each other, and the first transmission wheel 6 exerts a clockwise rotational force on the second transmission wheel 7. However, since the inner ring of the second one-way bearing can only rotate counterclockwise, and the second transmission wheel 7 is fixed to the inner ring of the second one-way bearing via the second rotating shaft 5, the second transmission wheel 7 is restricted by the second one-way bearing and cannot rotate clockwise. Because the second transmission wheel 7 cannot rotate, the first transmission wheel 6 rotates clockwise along the first rotating shaft 18 under the force of the second transmission wheel 7. At this time, the first rotating disk 2 rotates on its own axis along the first rotating shaft 18 and also revolves around the second rotating disk 1. At this time, placing the mixing cylinder on the first rotating disk 2 can realize the material mixing operation.

[0049] When the first motor 9 is set to rotate counterclockwise, it drives the second rotating disk 1 to rotate counterclockwise around its own rotation center via the third rotating shaft 4. The first rotating disk 2 rotates counterclockwise synchronously with it. When the first rotating disk 2 rotates counterclockwise with the second rotating disk 1 around the third rotating shaft 4, the first transmission wheel 6 and the second transmission wheel 7 mesh with each other, and the first transmission wheel 6 exerts a counterclockwise rotational force on the second transmission wheel 7. Since the inner ring of the second one-way bearing can rotate counterclockwise, the second transmission wheel 7 rotates counterclockwise with the first transmission wheel 6 around the third rotating shaft 4. At the same time, the first transmission wheel 6 is subjected to a reaction force from the second transmission wheel 7, which drives the first transmission wheel 6 to rotate counterclockwise. However, the first transmission wheel 6 is connected to the inner ring of the first one-way bearing via the first rotating shaft 18, and the inner ring of the first one-way bearing can only rotate clockwise and not counterclockwise. Therefore, at this time, the first transmission wheel 6 and the first rotating disk 2 are stationary relative to the second rotating disk 1. That is, at this time, the first rotating disk 2 does not rotate on its own axis, but only revolves with the second rotating disk 1. If material is placed on the first rotating disk 2, the material will be centrifuged.

[0050] Furthermore, this embodiment also includes a support platform, a drive mechanism fixed to the support platform, an outer ring of the second one-way bearing fixed to the support platform, and an inner ring of the second one-way bearing connected to the second rotating shaft 5. The second rotating disk 1 has a through hole for mounting the first rotating shaft 18, the outer ring of the first one-way bearing fixed within the through hole, and the inner ring of the first one-way bearing connected to the first rotating shaft 18. In this embodiment, both the outer rings of the second and first one-way bearings are fixed, only the inner rings rotate in one direction, and the directions of their rotation are opposite.

[0051] Furthermore, the support platform includes a support plate 10, a support column 13, a fixed seat 15, and a base plate 14. The support plate 10 is supported on the base plate 14 by the support column 13. The drive mechanism is fixed to the support plate 10. The fixed seat 15 is fixed on the support plate 10. The outer ring of the second one-way bearing is fixed on the support plate 10 by the fixed seat 15.

[0052] Furthermore, the support platform also includes a shock absorber 12, which is connected between the support plate 10 and the support column 13 to reduce the vibration caused when the device is started.

[0053] Furthermore, the first transmission mechanism also includes a first support bearing 17, which is coaxially arranged with the first rotating shaft 18 and connected between the second rotating disk 1 and the first rotating shaft 18; the second transmission mechanism also includes a second support bearing 8, which is coaxially arranged with the second rotating shaft 5 and connected between the fixed base 15 and the second rotating shaft 5. In this embodiment, the first support bearing 17 is used to support the first rotating shaft 18, and the second support bearing 8 is used to support the second rotating shaft 5.

[0054] Furthermore, this embodiment also includes a bearing cap 16, which is fixed on the first rotating disk 2 to limit the first support bearing 17 and the first one-way bearing.

[0055] Example 2:

[0056] Example 2 is largely the same in structure as Example 1; only the differences from Example 1 will be described. For example... Figure 2 As shown, the support platform in this embodiment includes a support plate 10, a column 13, a fixed seat 15, a bracket 19, and a base plate 14. The support plate 10 is supported on the base plate 14 by the column 13. The drive mechanism is fixed to the support plate 10, and the bracket 19 is fixed on the support plate 10. The outer ring of the second one-way bearing is fixed to the bracket 19 by the fixed seat 15. That is, embodiment 2 adds a bracket 19 to the support platform structure of embodiment 1. The bracket 19 is fixed above the support plate 10. In this embodiment, the fixed seat 15 is fixed below the bracket 19. The second support bearing 8 and the second one-way bearing are both installed on the bracket 19 by the fixed seat. In this embodiment, the second transmission mechanism is installed through the bracket, making reasonable use of space. In this embodiment, the second rotating disk 1 adopts a concave design, so that the axis of the first rotating shaft 18 and the axis of the second rotating shaft 5 form a certain angle. This concave design allows the first rotating disk 2 to form a more complex motion pattern when rotating, and reduces the radial force on the first rotating shaft 18. In this embodiment, the axis of the first rotating disk 2 is set at an angle to the axis of the second rotating disk 1.

[0057] Furthermore, in this embodiment, the first transmission wheel 6 and the second transmission wheel 7 are bevel gears, and the first transmission wheel 6 and the second transmission wheel 7 are placed on the upper side of the second rotating disk 1. The second rotating disk 1 is designed accordingly to be processed as follows: Figure 2 The concave structure shown makes the axis of the first rotating shaft 18 and the axis of the second rotating shaft 5 form a certain angle. This concave design allows the first rotating disk 2 to form more complex motion patterns during rotation and reduces the radial force on the first rotating shaft 18. Of course, the second rotating disk 1 can also be designed with a convex structure (such as...). Figure 5 (as shown), or the planar structure in Example 1.

[0058] Example 3:

[0059] Example 3 is largely the same in structure as Example 1; only the differences from Example 1 will be described. Figure 3 As shown, the drive mechanism in this embodiment also includes a second motor 23 and a third transmission mechanism. The second motor 23 is connected to the second transmission wheel 7 of the second transmission mechanism via the third transmission mechanism, and is used to drive the second transmission wheel 7 to rotate, stop, or be in a free state around its own rotation center. In this embodiment, the second transmission mechanism consists only of the second transmission wheel 7 and does not include a second one-way bearing. This embodiment adopts a dual-motor drive form, that is, based on embodiment 1, a second motor 23 and a third transmission mechanism are added, and the second one-way bearing is removed.

[0060] In this embodiment, the second transmission wheel 7 can rotate clockwise, counterclockwise, brake, and freely follow four states via the second motor 23. The brake-stop state is equivalent to the locked state of the second one-way bearing in Embodiment 1, and the free-following state is equivalent to the free state of the second one-way bearing in Embodiment 1. When the second motor 23 is started, it drives the second transmission wheel 7 to rotate unidirectionally via the third transmission mechanism. The first transmission wheel 6, meshing with the second transmission wheel 7, can adjust its speed under the drive of the second transmission wheel 7. Specifically, when the first rotating disk 2 rotates synchronously with the second rotating disk 1, and the first rotating disk 2 can rotate on its own axis, the second transmission wheel 7 can be driven to rotate by the second motor 23, thereby adjusting the speed of the first transmission wheel 6 and the first rotating disk 2. By adjusting the speed of the first rotating disk 2, the degree of material mixing can be adjusted.

[0061] Taking the example of the inner ring of the first one-way bearing (as shown in the diagram, reference frame) that can only rotate clockwise. Figure 3As shown, when the first motor 9 is turned on and set to rotate clockwise, it drives the second rotating disk 1 to rotate clockwise around its own rotation center via the third rotating shaft 4, while the first rotating disk 2 rotates clockwise synchronously with it. When the first rotating disk 2 rotates clockwise with the second rotating disk 1 around the third rotating shaft 4, the first transmission wheel 6 and the second transmission wheel 7 mesh with each other, and the first transmission wheel 6 exerts a clockwise rotational force on the second transmission wheel 7. At this time, the second motor 23 is in a braked and stopped state and cannot rotate. The second transmission wheel 7 is connected to the third transmission mechanism via the second rotating shaft 5. Since the second motor 23 cannot rotate, the second transmission wheel 7 cannot rotate. Because the second transmission wheel 7 cannot rotate, the first transmission wheel 6 is subjected to the force of the second transmission wheel 7 and rotates clockwise along the first rotating shaft 18. At this time, the first rotating disk 2 rotates on its own axis along the first rotating shaft 18 and also revolves with the second rotating disk 1. At this time, the material mixing operation can be achieved by placing the mixing cylinder on the first rotating disk 2.

[0062] When the first motor 9 is set to rotate counterclockwise, it drives the second rotating disk 1 to rotate counterclockwise around its own rotation center through the third rotating shaft 4, and the first rotating disk 2 rotates counterclockwise synchronously with it. When the first rotating disk 2 rotates counterclockwise with the second rotating disk 1 around the third rotating shaft 4, since the first transmission wheel 6 and the second transmission wheel 7 are meshed with each other, the first transmission wheel 6 gives the second transmission wheel 7 a counterclockwise rotational force. At this time, the second motor 23 is in a free rotation state, and the second transmission wheel 7 is connected to the third transmission mechanism through the second rotating shaft 5. Since the second motor 23 is in a free rotation state, the second transmission wheel 7 rotates counterclockwise with the first transmission wheel 6 around the third rotating shaft 4. Simultaneously, the first drive wheel 6 is subjected to a reaction force from the second drive wheel 7, which drives the first drive wheel 6 to rotate counterclockwise. However, the first drive wheel 6 is connected to the inner ring of the first one-way bearing via the first rotating shaft 18, and the inner ring of the first one-way bearing can only rotate clockwise and not counterclockwise. Therefore, at this time, the first drive wheel 6 and the first rotating disk 2 are stationary relative to the second rotating disk 1. At this time, the first rotating disk 2 does not rotate on its own axis, but only revolves with the second rotating disk 1. When material is placed on the first rotating disk, the material is centrifuged.

[0063] Compared to Embodiment 1, which is driven by the first motor 9, this embodiment adds a second motor 23. The second motor 23 becomes the primary driving force, driving the second transmission wheel 7 to rotate. This enables various states for the first rotating disk 2: single rotation, rotation of the first rotating disk 2 along with the second rotating disk 1, rotation of the first rotating disk 2 along with the second rotating disk 1, and no rotation. The specific transmission relationship is clear and will not be elaborated here.

[0064] Furthermore, the third transmission mechanism in this embodiment includes a first pulley 20, a second pulley 21, and a transmission belt 22. The first pulley 20 is connected to the second rotating shaft 5, and the transmission belt 22 is connected between the first pulley 20 and the second pulley 21. The second pulley 21 is connected to the second motor 23. In this embodiment, the second motor 23 can be a brushless DC motor or other motor capable of controlling the rotation direction, braking state, and free state. The second motor 23 and the second rotating shaft 5 are driven by a belt drive mechanism.

[0065] Example 4:

[0066] like Figure 4 As shown, this embodiment is a combination of embodiment 2 and embodiment 3, adopting a dual-motor configuration and setting up a bracket 19, on which the second motor 23 is mounted. The output shaft of the second motor 23 is directly connected to the second transmission wheel 7, eliminating the need for a third transmission mechanism. The first transmission wheel 6 and the second transmission wheel 7 are also bevel gears, which occupy little space and have a simple structure.

[0067] Example 5:

[0068] This embodiment is largely the same in structure as Embodiment 1; only the differences from Embodiment 1 will be described. For example... Figure 6 As shown, this embodiment only changes the installation position and connection relationship of the first one-way clutch 3 based on embodiment 1. Specifically, in this embodiment, the first one-way clutch 3 is located between the third rotating shaft 4 and the second transmission wheel 7, and is used to limit the second transmission wheel 7 to rotate synchronously only when the third rotating shaft 4 rotates around the second direction. Similarly, the installation position and connection relationship of the second one-way clutch 11 remain unchanged, that is, the second one-way clutch 11 is located on the second rotating shaft 5 of the second transmission wheel 7, and is used to limit the second transmission wheel 7 to rotate around the first direction. The limiting directions of the first one-way clutch 3 and the second one-way clutch 11 are opposite, that is, the second direction is opposite to the first direction.

[0069] Specifically, the outer ring of the first one-way clutch 3 is connected to the second rotating shaft 5, and the inner ring of the first one-way clutch 3 is connected to the third rotating shaft 4.

[0070] The following explanation uses a one-way clutch employing a one-way bearing as an example. The inner ring of the first one-way bearing (as shown in the diagram, with the third shaft 4 as the reference point) can only rotate clockwise. Since the inner ring of the first one-way bearing is connected to the third shaft 4, it always rotates with the third shaft 4. The inner ring of the second one-way bearing (as shown in the diagram) can only rotate counter-clockwise. When the third shaft 4 rotates clockwise, driving the second rotating disk 1 to rotate clockwise, since the inner ring of the second one-way bearing can only rotate counter-clockwise, the second drive wheel 7 and the outer ring of the first one-way bearing cannot rotate. The first rotating disk 2 rotates around the second drive wheel 7 and also rotates on its own axis, performing the material mixing operation. When the third rotating shaft 4 rotates counterclockwise and drives the second rotating disk 1 to rotate counterclockwise, since the inner ring of the first one-way bearing can only rotate clockwise, it drives the outer ring to rotate counterclockwise synchronously (at this time, the inner and outer rings of the first one-way bearing are locked, and there is no relative rotation). This drives the second transmission wheel 7 to rotate counterclockwise. Since both the second transmission wheel 7 and the second rotating disk 1 rotate counterclockwise, the first rotating disk 2 rotates around the second transmission wheel 7 but does not rotate on its own axis. The present invention also provides a centrifuge device, including the centrifugal drive device as described in any of the preceding claims.

[0071] Furthermore, the centrifuge device provided by the present invention also possesses the various advantages described above due to the centrifugal drive device described above.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A centrifugal drive device, characterized in that, It includes a first rotating disk (2), a second rotating disk (1), a first transmission mechanism, a second transmission mechanism, and a drive mechanism; The output end of the drive mechanism is connected to the second rotating disk (1) and is used to drive the second rotating disk (1) to rotate around its own rotation center; The first rotating disk (2) is rotatably mounted on the second rotating disk (1), and the first rotating disk (2) is connected to the second transmission mechanism through the first transmission mechanism. The first transmission mechanism and the second transmission mechanism can switch between a rotating state and a locked state, so that when the first rotating disk (2) rotates synchronously with the second rotating disk (1), it can rotate or lock around its own rotation center. The first transmission mechanism includes a first transmission wheel (6) and a first one-way clutch (3), the second transmission mechanism includes a second transmission wheel (7) and a second one-way clutch (11), and the drive mechanism includes a first motor (9); The first transmission wheel (6) is connected to the second transmission wheel (7) in a transmission connection, and the first transmission wheel (6) is connected to the first rotating disk (2) through the first rotating shaft (18); The second one-way clutch (11) is disposed on the second shaft (5) of the second transmission wheel (7) and is used to limit the rotation of the second transmission wheel (7) around the first direction; The output end of the first motor (9) is connected to the second rotating disk (1) via the third rotating shaft (4); The first one-way clutch (3) is disposed on the first rotating shaft (18) to limit the first transmission wheel (6) and the first rotating disk (2) to rotate around the second direction, or the first one-way clutch (3) is disposed between the third rotating shaft (4) and the second transmission wheel (7) to limit the second transmission wheel (7) to rotate synchronously only when the third rotating shaft (4) rotates around the second direction; Wherein, the second direction is opposite to the first direction; It also includes a support platform, the drive mechanism is fixed to the support platform, the outer ring of the second one-way clutch (11) is fixed to the support platform, and the inner ring of the second one-way clutch (11) is connected to the second rotating shaft (5); the second rotating disk (1) is provided with a through hole for mounting the first rotating shaft (18), the outer ring of the first one-way clutch (3) is fixed in the through hole, and the inner ring of the first one-way clutch (3) is connected to the first rotating shaft (18), or the outer ring of the first one-way clutch (3) is connected to the second rotating shaft (5), and the inner ring of the first one-way clutch (3) is connected to the third rotating shaft (4).

2. The centrifugal drive device according to claim 1, characterized in that, The first transmission mechanism further includes a first support bearing (17), which is coaxially arranged with the first rotating shaft (18) and is connected between the second rotating disk (1) and the first rotating shaft (18). The second transmission mechanism further includes a second support bearing (8), which is coaxially arranged with the second rotating shaft (5) and is connected between the support platform and the second rotating shaft (5).

3. The centrifugal drive device according to claim 1, characterized in that, The drive mechanism further includes a second motor (23), which is connected to the second transmission mechanism for driving the second transmission mechanism to rotate or stop around its own rotation center.

4. The centrifugal drive device according to claim 1, characterized in that, The support platform includes a support plate (10), a support column (13) and a base plate (14). The support plate (10) is supported on the base plate (14) by the support column (13). The drive mechanism is fixed on the support plate (10). The outer ring of the second one-way clutch (11) is fixed on the support plate (10).

5. The centrifugal drive device according to claim 1, characterized in that, The support platform includes a support plate (10), a column (13), a bracket (19), and a base plate (14). The support plate (10) is supported on the base plate (14) by the column (13). The drive mechanism is fixed to the support plate (10). The bracket (19) is fixed on the support plate (10). The outer ring of the second one-way clutch (11) is fixed to the bracket (19).

6. The centrifugal drive device according to any one of claims 1 to 5, characterized in that, The first one-way clutch (3) and the second one-way clutch (11) are one of the following: one-way bearing, ratchet structure and electromagnetic clutch, respectively.

7. The centrifugal drive device according to any one of claims 1 to 5, characterized in that, The first transmission wheel (6) and the second transmission wheel (7) are bevel gears.

8. The centrifugal drive device according to any one of claims 1 to 5, characterized in that, The axis of the first rotating disk is set parallel to the axis of the second rotating disk, or at an angle to the axis of the second rotating disk.

9. A centrifuge device, characterized in that, include: The centrifugal drive device according to any one of claims 1 to 8.

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