A centrifuge and vortex integrated device

Abstract

This invention discloses an integrated centrifugation and vortex device, belonging to the field of experimental equipment technology, which solves the technical problems of large space occupation and cumbersome operation of existing centrifugation and vortex devices. It includes an outer shell, with a drive motor connected to the bottom of the shell. The output shaft of the drive motor is connected to a phase arm via a coupling. The upper part of the phase arm is fixedly connected to a centrifuge disc, and multiple centrifuge cups are arranged on the centrifuge disc. A bearing mounting seat is provided inside the outer shell, and a bearing is installed on the bearing mounting seat. An eccentric ring is connected to the inner edge of the bearing, and the eccentric ring is connected to the phase arm via the bearing. This integrated centrifugation and vortex device can be better used for sample pretreatment, has a wide range of applications, controllable size, and is easy to use.

Description

Technical Field

[0001] This invention relates to the field of experimental equipment technology, specifically to an integrated centrifugal and vortex device. Background Technology

[0002] A vortex shaker (vortex apparatus) can be used to shake test tubes or other small containers. It is mainly used in research fields such as medicine, bioengineering, chemistry, and medicine. It is an essential routine instrument in biological laboratories for fixing, shaking, and mixing various reagents, solutions, and chemical substances.

[0003] A tubular centrifuge is a machine that uses centrifugal force to separate the components of a mixture of liquids and solid particles or liquids. Tubular centrifuges are mainly used to separate solid particles from the liquid in a suspension; or to separate two immiscible liquids with different densities in an emulsion; they can also be used to remove liquid from wet solids. In the laboratory, tubular centrifuges are used to separate various suspensions that are difficult to separate. They are particularly suitable for solid-liquid separation with low concentration, high viscosity, fine solid particles, and low solid-liquid density, and are therefore an essential piece of routine laboratory equipment.

[0004] The sample needs to be pre-processed during the sample testing process. The aforementioned vortex mixer and centrifuge are used to process the sample in two separate steps.

[0005] In the existing technology, vortex mixers and centrifuges are usually two separate devices that occupy a large space and require highly professional skills and strict operating procedures from the operators. The operation process is cumbersome and labor-intensive. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an integrated centrifugal and vortex centrifugal device that simplifies workflow and improves work efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The present invention provides an integrated centrifugal and vortex centrifugal device, comprising an outer shell, a drive motor connected to the bottom of the outer shell, an output shaft of the drive motor connected to a phase arm via a coupling, an upper part of the phase arm fixedly connected to a centrifugal disc, and a plurality of centrifugal cups arranged on the centrifugal disc;

[0009] The housing contains a bearing mounting base, on which a bearing is mounted. An eccentric ring is connected to the inner edge of the bearing, and the eccentric ring is connected to the phase arm via the bearing.

[0010] Optionally or preferably, the coupling is connected to the phase arm by a key;

[0011] The phase arm has a multi-level eccentric boss structure, including a primary boss, a secondary boss, and a tertiary boss; the secondary boss and the tertiary boss have internal working cavities, and the coupling extends into the working cavity and is connected to the inside of the working cavity through the key.

[0012] Optionally or preferably, the working cavity has an arc-shaped surface and a working surface, the working surface including a centrifugal contact surface and a vortex contact surface, the centrifugal contact surface and the vortex contact surface being used to contact the key.

[0013] Optionally or preferably, the drive motor is a high-speed servo motor.

[0014] Optionally or preferably, the output shaft of the drive motor and the coupling are keyed.

[0015] Optionally or preferably, multiple sets of the centrifuge cups are mounted on the centrifuge tray.

[0016] Based on the above technical solution, the present invention can produce at least the following technical effects:

[0017] The present invention provides an integrated centrifugal and vortex device, which can achieve the following through the cooperation of an eccentric ring and a phase arm: when the coupling rotates forward, one side of the key abuts against the centrifugal contact surface in the working cavity of the phase arm. At this time, due to the specific eccentric data designed, the coupling and the upper end of the phase arm are concentric, thereby enabling the phase arm to drive the centrifugal disc to complete the centrifugation steps in the centrifugal cup.

[0018] When the coupling reverses, the other side of the key abuts against the vortex contact surface in the working cavity of the phase arm. At this time, due to the specific eccentric data designed, the coupling and the upper end of the phase arm are offset by a data distance, thereby causing the phase arm to drive the centrifuge plate to complete the centrifugation step in the centrifuge cup.

[0019] In addition, since the present invention can achieve the integration of centrifugation and vortex functions by controlling the rotation direction of the coupling, the size and cost of the device are controllable, and the sample processing efficiency is improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the centrifugal and vortex integrated device of the present invention;

[0021] Figure 2 This is a top view of the integrated centrifugal and vortex centrifugal device of the present invention (the outer casing cover is omitted);

[0022] Figure 3 This is a top view of a partial structure of the phase arm and eccentric ring in the centrifugal and vortex integrated device of the present invention;

[0023] Figure 4 yes Figure 3 Sectional view A-A;

[0024] Figure 5 This is a schematic diagram of the overall structure of the phase arm in the centrifugal and vortex integrated device of the present invention. Figure 1 ;

[0025] Figure 6 This is a schematic diagram of the overall structure of the phase arm in the centrifugal and vortex integrated device of the present invention. Figure 2 ;

[0026] Figure 7 This is a top view of the eccentric ring in the centrifugal and vortex integrated device of the present invention.

[0027] In the diagram: 1. Drive motor; 2. Coupling; 21. Upper cylindrical boss; 22. Lower cylindrical boss; 23. Keyway; 3. Phase arm; 31. Primary boss; 32. Secondary boss; 33. Tertiary boss; 34. Working cavity; 35. Centrifugal contact surface; 36. Vortex contact surface; 37. Positioning cavity; 4. Eccentric ring; 41. Outer circle of eccentric ring; 42. Inner circle of eccentric ring; 5. Centrifuge disc; 6. Centrifuge cup; 7. Outer shell; 8. Key. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] Please see Figures 1 to 4 A centrifugal and vortex integrated device includes an outer shell 7, which has a working space for performing centrifugal or vortex operations, and also has a corresponding bearing mounting seat, structural fasteners, connectors and reinforcing members; the bearing mounting seat is provided with a bearing, and an eccentric ring 4 is connected to the inner edge of the bearing, the eccentric ring 4 having a specific eccentric dimension.

[0031] The bottom of the outer casing 7 is connected to a drive motor 1. In this embodiment, the drive motor 1 is a high-speed servo motor with a speed of 6000 rpm, which has zero return and positioning functions. The output shaft of the drive motor 1 is connected to the phase arm 3 through a coupling 2. The connection between the output shaft of the drive motor 1 and the coupling 2, and between the coupling 2 and the phase arm 3, is a key connection. It should be noted that there is a special interaction between the coupling 2 and the phase arm 3, which produces a special technical effect. Therefore, the coupling 2 and the phase arm 3 are connected by a key 8 of a specific size.

[0032] Please see Figures 5 to 6 In this embodiment, the phase arm 3 has a specific eccentric dimension and its overall structure is a multi-level eccentric boss structure, specifically including a first-level boss 31, a second-level boss 32 and a third-level boss 33; wherein the first-level boss 31 and the second-level boss 32 have internal working cavities 34 for forming a mating relationship with the key 8, and the coupling 2 extends into the above-mentioned working cavity 34 and is connected to the phase arm 3 through the key 8.

[0033] Furthermore, the aforementioned working cavity 34 is a semi-circular cavity, which can be understood to have an arc-shaped surface and a working surface formed inside. The working surface includes a centrifugal contact surface 35 and a vortex contact surface 36. The key 8 abuts against the centrifugal contact surface 35 and the vortex contact surface 36, thereby causing the coupling 2 to act on the phase arm 3. Since the top end of the phase arm 3 is fixedly connected to the centrifugal disk 5 and the coupling 2 is connected to the output shaft of the drive motor 1, the phase arm 3 and the centrifugal disk 5 are rotated by controlling the output shaft of the drive motor 1.

[0034] In this embodiment, when the coupling 2 (output shaft of the drive motor 1) rotates forward, one side of the key 8 abuts against the centrifugal contact surface 35 in the working cavity 34 of the phase arm 3. At this time, the coupling 2 and the phase arm 3 are concentric with the upper end of the phase arm due to the specific eccentric data designed, so that the phase arm 3 drives the centrifugal disk 5 to complete the centrifugal step in the centrifugal cup 6.

[0035] When the coupling 2 (output shaft of drive motor 1) is reversed, the other side of key 8 abuts against the vortex contact surface 36 in the working cavity 34 of phase arm 3. At this time, due to the specific eccentric data designed, the coupling 2 and the upper end of phase arm 3 are offset by a data distance, so that phase arm 3 drives centrifugal disk 5 to complete the centrifugation step in centrifugal cup 6.

[0036] In this embodiment, the centrifuge plate 5 is fixedly connected to the phase arm 3, and multiple centrifuge cups 6 are hung on the centrifuge plate 5. In actual work, the personnel can make adaptive adjustments to the setting position and number of centrifuge cups 6 according to actual work needs.

[0037] Furthermore, the centrifugal and vortex integrated device provided by this invention can be used as a standalone device or as a modular device in conjunction with other devices.

[0038] Understandably, the drive motor 1 is electrically connected to a control device, which can be a PLC controller; the housing 7 and the interior of the housing 7 can be equipped with various sensors, and the housing 7 can be provided with holes, slots or other limiting components for connecting the sensors and control device circuits.

[0039] In addition, the integrated centrifugal and vortex device provided by the present invention has at least the following effects:

[0040] 1) Simple structure, easy operation, low energy consumption, multiple functions, high efficiency, and can be used for both vortex and centrifugal operations;

[0041] 2) It possesses both modular and professional characteristics:

[0042] Modular design: It allows for the configuration of corresponding models based on actual working conditions, enabling it to work with relevant equipment to complete various tasks;

[0043] Specialization: The eccentric ring 4 and phase arm 3 are special structural designs based on calculation and testing.

[0044] Example 2

[0045] Based on Embodiment 1, this embodiment further provides the setting dimensions for coupling 2, phase arm 3, key 8, and centrifugal disk 5.

[0046] For example, the coupling 2 includes an upper cylindrical boss 21 and a lower cylindrical boss 22. The center offset of the upper cylindrical boss 21 and the lower cylindrical boss 22 differs by 2.5mm. An 8mm wide keyway 23 is formed in the center of the upper cylindrical boss 21. The keyway 23 is used to cooperate with the key 8.

[0047] The center offset of the outer circles of the first-level boss 31 and the second-level boss 32 differs by 2.5mm, and the outer circles of the second-level boss 32 and the third-level boss 33 are concentrically arranged.

[0048] The aforementioned positioning cavity 37 is a cylindrical cavity, and the center of the positioning cavity 37 is offset from the center of the third-level boss 33 by 2.5mm. The function cavity 34 is concentrically arranged with the positioning cavity 37. The function cavity 34 is a semi-circular cavity, and its radius is greater than the length from the center of the key 8 to the function end (centrifugal contact surface 35 and vortex contact surface 36). The function end of the function cavity 34 is offset from the center of the semi-circle by 4mm, and its length is half of the key 8. Specifically, the upper cylindrical boss 21 of the coupling 2 extends into the positioning cavity 37 and abuts against the function end inside the function cavity 34 through the key 8.

[0049] Please see Figure 7The eccentric ring 4 includes an outer circle 41 and an inner circle 42. The outer circle 41 and the inner circle 42 are eccentrically set with a center offset of 2.5mm. A boss is provided on the outer circle 41 for mounting bearings.

[0050] The present invention provides an integrated centrifugal and vortex device, the specific working principle of which is as follows:

[0051] When the drive motor 1 rotates clockwise, driving the coupling 2 to rotate clockwise, the left working surface of the key 8 abuts against the centrifugal contact surface 35 in the working cavity 34 of the phase arm 3. Since the third-stage boss 33 in the phase arm 3 is concentrically set with the upper cylindrical boss 21 in the coupling 2, the first-stage boss 31 in the phase arm 3 is 2.5mm away from the upper cylindrical boss 21 in the coupling 2. Since the upper cylindrical boss 21 and the lower cylindrical boss 22 of the coupling 2 have a fixed distance of 2.5mm, the first-stage boss 31 in the phase arm 3 is exactly concentric with the lower cylindrical boss 22 in the coupling 2. When the drive motor 1 rotates, the first-stage boss 31 in the phase arm 3 rotates concentrically with the drive shaft of the drive motor 1. A one-way bearing is installed on the first-stage boss 31 in the phase arm 3, which locks when rotating clockwise, thereby driving the centrifugal disc 5 to rotate to complete the centrifugal operation.

[0052] When the drive motor 1 reverses, it drives the coupling 2 to rotate counterclockwise. The right working surface of the key 8 abuts against the vortex contact surface 36 in the working cavity 34 of the phase arm 3. Since the third-stage boss 33 in the phase arm 3 is concentric with the upper cylindrical boss 21 in the coupling 2, the first-stage boss 31 in the phase arm 3 is 2.5mm away from the upper cylindrical boss 21 in the coupling 2. Since there is a fixed distance of 2.5mm between the upper cylindrical boss 21 and the lower cylindrical boss 22 in the coupling 2, the first-stage boss 31 in the phase arm 3 is 5mm away from the lower cylindrical boss 22 in the coupling 2. When the drive motor 1 rotates, the first-stage boss 31 rotates around the drive shaft at a distance of 5mm from the drive shaft of the drive motor 1. Since a one-way bearing is installed on the first-stage boss 31 in the phase arm 3, it slides when rotating counterclockwise and will not drive the centrifugal disc 5 to rotate. Under the restraint of the brake spring, the centrifugal disc 5 only swings around the drive motor 1 to complete the vortex action.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated centrifugal and vortex centrifugal device, characterized in that, Includes an outer shell (7), the bottom of which is connected to a drive motor (1), the output shaft of which is connected to a phase arm (3) via a coupling (2), the upper part of which is fixedly connected to a centrifugal disc (5), and multiple centrifugal cups (6) are provided on the centrifugal disc (5). The outer casing (7) is provided with a bearing mounting seat, and a bearing is provided on the bearing mounting seat. An eccentric ring (4) is connected to the inner edge of the bearing. The eccentric ring (4) is connected to the phase arm (3) through the bearing. The coupling (2) is connected to the phase arm (3) through a key (8). The phase arm (3) has a multi-level eccentric boss structure, including a first-level boss (31), a second-level boss (32) and a third-level boss (33); the second-level boss (32) and the third-level boss (33) have an internal working cavity (34) and a positioning cavity (37). The coupling (2) extends into the working cavity (34) and is connected to the inside of the working cavity (34) through the key (8). The working cavity (34) has an arc-shaped surface and a working surface. The working surface includes a centrifugal contact surface (35) and a vortex contact surface (36). The centrifugal contact surface (35) and the vortex contact surface (36) are used to contact the key (8).

2. The integrated centrifugal and vortex centrifugal device according to claim 1, characterized in that, The drive motor (1) is a high-speed servo motor.

3. The integrated centrifugal and vortex centrifugal device according to claim 1, characterized in that, The output shaft of the drive motor (1) is keyed to the coupling (2).

4. The integrated centrifugal and vortex centrifugal device according to claim 1, characterized in that, Multiple sets of centrifuge cups (6) are hung on the centrifuge plate (5).

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