Active drive unit and its solid-liquid separation equipment

Abstract

The present invention relates to an active drive unit and a direct-drive solid-liquid separation device thereof, characterized in that the active drive unit includes at least one rotor unit and a rotor unit support member consisting of a driven centrifugal unit locking structure and / or locking unit, a spacer, and at least one rotor unit support portion, while the solid-liquid separation device includes an active drive unit, a driven centrifugal unit, a liquid collection and discharge unit, a rotation support unit, and a stator assembly including at least one stator unit. Advantages of the present invention include: the active drive unit and the driven centrifugal unit of the device can be quickly switched between locked and unlocked states; the various components can be manufactured and the entire device assembled easily; the device is highly safe, operates quietly and stably, and is easy to maintain and clean and verify, thereby overcoming various defects or disadvantages of existing solid-liquid separation devices.

Description

[0001] This application is a divisional application of application dated February 28, 2017, application number CN201710118854.3, publication number CN106849485 A, entitled "Active Drive Unit and Solid-Liquid Separation Device Thereof". Technical Field

[0002] This invention relates to an active drive unit with a locking structure and / or locking unit, and a direct-drive solid-liquid separation device with the active drive unit. The final product is a small-scale solid-liquid mixture centrifugal separation device, belonging to the field of centrifuges. Background Technology

[0003] In laboratory pilot and pilot-scale studies, the most commonly used solid-liquid separation equipment is the combination of Buchner funnel and suction flask, as well as centrifuges of various sizes. The combination of Buchner funnel and suction flask is only suitable for laboratory pilot studies. In order to simulate the actual situation in production and provide the necessary centrifugal separation operation data for production, centrifuges are more recommended.

[0004] Currently, commonly used centrifuges are composed of separate drive units (mainly motors) and solid-liquid separation units (mainly liquid collection and discharge chambers and driven centrifuge units), which are then reassembled. The centrifuge drum (equivalent to the driven centrifuge unit) is mechanically fixed to the drive shaft, making it difficult to disassemble and assemble the centrifuge drum and clean and verify the centrifuge equipment. Moreover, the equipment is too complex and bulky, with excessive noise and vibration, complex manufacturing process, and inconvenient maintenance, among other defects or drawbacks. It cannot fully meet the needs of thorough separation of solid-liquid mixtures in laboratory pilot and pilot-scale tests. Summary of the Invention

[0005] Purpose of the invention:

[0006] The purpose of this invention is to provide an active drive unit with a locking structure and / or locking unit, and a solid-liquid separation device with the active drive unit. This device can overcome various defects or drawbacks of existing solid-liquid separation devices and better meet the needs of thorough separation of solid-liquid mixtures in laboratory pilot and pilot-scale tests.

[0007] Technical solution:

[0008] To overcome the various defects or drawbacks of existing solid-liquid mixture separation equipment, this invention provides an active drive unit with a driven centrifugal unit locking structure and / or locking unit, and a direct-drive solid-liquid separation device having the active drive unit, the active drive unit comprising:

[0009] At least one rotor unit, which causes the active drive unit to rotate about the center line of the motor shaft through a rotational force generated by electromagnetic interaction between the rotor unit and the adapted stator unit.

[0010] A driven centrifugal unit locking structure and / or locking unit is provided for locking and / or unlocking the driven centrifugal unit, preventing the driven centrifugal unit from generating circumferential and / or axial movement, and causing it to rotate at the same speed and coaxially with the active drive unit when locked. The locking structure and / or locking unit is located at any position on the active drive unit that can lock and / or unlock with the driven centrifugal unit.

[0011] The spacer section serves as the intermediary between the rotor unit support section and the driven centrifugal unit, and directly or indirectly controls the flow direction of the target material and its components in the centrifugal state. The spacer section closes the top of the rotor unit support section.

[0012] At least one rotor unit support for carrying a rotor unit; and

[0013] In one of the shaft connection methods (A) to (C), the active drive unit is connected to the motor shaft via any of the following shaft connection methods (A) to (C):

[0014] (A) Through the motor shaft mounting hole located in the center of the spacer;

[0015] (B) The mounting bracket is fixedly connected to the spacer and the motor shaft, or is an integral structure with the spacer and / or the motor shaft;

[0016] (C) The motor shaft and the active drive unit are integrated into one structure;

[0017] The driven centrifugal unit locking unit, the spacer, and the rotor unit support together constitute the rotor unit support.

[0018] According to the active drive unit of the present invention, the spacer portion and the rotor unit support portion, particularly the outermost rotor unit support portion, together form a longitudinal section of... The integrated structure of the type, the The molded structure includes a metal structural portion derived from at least one metal component and / or a molded structural portion derived from polymer material molding. The molded component, which is formed by the molded structural portion of polymer material molding, gives the rotor unit support or active drive unit a complete structure and function.

[0019] Specifically, the locking structure and / or locking unit, The framework technical features, consisting of the structural design and electrical insulation measures (I) to (III), together ensure the success of the active drive unit described in this invention.

[0020] Specifically, the driven centrifugal unit locking structure and / or locking unit such as Figure 6 , Figure 7 As shown, Embodiment 3 (Figure 3) is a shaft connection method (A), Embodiment 1 (Figure 1) is a shaft connection method (B), Embodiment 2 (Figure 2) and Embodiment 4 (Figure 4) are shaft connection methods (C). The spacer is located at position 206 in Figure 2 and 306 in Figure 3. The rotor unit support is structured as shown in 116 and 117 in Figures 1 to 4, but does not include the rotor unit. The rotor unit is shown in 104 and 106 in Figure 1.

[0021] Specifically, in Embodiment 1 (Figure 1), the mounting bracket (103) is fixedly connected to the spacer through the mounting bracket mounting hole (101, which is formed by injection molding of the injection molding insulating hole (111)). At the same time, it is fixedly connected to the motor shaft through the motor shaft hole. With simple changes, the mounting bracket and the motor shaft can be integrated into one structure. Embodiment 2 (Figure 2) specifically shows the case where the mounting bracket, the spacer, and the motor shaft are integrated into one structure, and also indirectly shows the method of integrating the mounting bracket and the motor shaft into one structure.

[0022] Specifically, the integrated structure described The structure includes a radial portion and an axial portion, preferably the aforementioned... The radial and / or axial portions of the molded structure include metal structural portions derived from at least one metal component and / or molded structural portions derived from polymer material molding, more preferably the aforementioned... The metal structural portions included in the radial and / or axial portions of the type structure are derived from the metal components of the integral structure. The type structure is preferably used to form a seal with the sealing element and / or to set the locking structure (115) and / or locking unit of the driven centrifugal unit, the seal preventing leakage of the target substance and its components.

[0023] Specifically, generally speaking, the structural strength of various materials is in the following order: metallic materials > metallic materials + polymer materials > polymer materials. As the part of the active drive unit that bears the strongest force, the integral structure... The combination of modular structure and integrated metal components can not only meet the various strength requirements of the equipment to the greatest extent, but also facilitate the setting of locking structures and / or locking units for driven centrifugal units. It can also minimize the types and number of parts and facilitate the manufacture of active drive units of various structures and specifications.

[0024] Specifically, in Examples 1 to 4 (Figures 1 to 4), the spacer at the top of the closed rotor unit support and the outermost rotor unit support (position shown at 112) together form a longitudinal section of... The structure of the type (positions shown in 206 and 306), in Examples 1 to 3 (Figures 1, 2 and 3) The type structure includes a metal structure portion of a second metal component derived from the integral structure, as shown in Embodiment 4 (Figure 4). The molded structure includes a metal structural portion derived from a first metal component of an integral structure and a molded structural portion molded from polymer material.

[0025] According to the active drive unit of the present invention, the active drive unit is preferably fixed to the bottom of the centrifugal liquid collection unit by means of a rotary support unit and a nut that abuts against the rear bearing and is screwed onto the motor shaft.

[0026] Specifically, the structure of the motor shaft tail end in Embodiment 2 (Figure 2) and Embodiment 4 (Figure 4) is particularly suitable for this installation method.

[0027] According to the active drive unit of the present invention, the component associated with the shaft is preferably electrically isolated from the rest of the active drive unit, and the "component associated with the shaft" includes, but is not limited to, the first metal component.

[0028] Specifically, in Embodiment 2 (Figure 2) and Embodiment 3 (Figure 3), the first metal component associated with the shaft and the second metal component are electrically insulated and isolated from each other by molding with polymer material.

[0029] In order to ensure electrical insulation between the rotor unit and the stator unit under any circumstances, and more importantly, to ensure electrical insulation between the rotor unit and the motor shaft, and especially to ensure electrical insulation between the target material and its components and the active drive unit, thereby improving the safety of the equipment, as an equivalent replacement for the individual and combined use of the three electrical insulation measures (I) to (III) below, the active drive unit of the present invention includes at least a component containing a rotor unit, the surface of which faces the air gap and / or the surface of which does not face the air gap but is adjacent to the rotor unit support is electrically insulated by a layer of non-conductive insulating material. The component of the present invention including at least a rotor unit includes, but is not limited to, one or both of the rotor unit, a metal component that non-electrically supports the rotor unit.

[0030] In further detail, according to the active drive unit or solid-liquid separation device of the present invention, the active drive unit or solid-liquid separation device has at least one of the following three electrical insulation measures (I) to (III):

[0031] (I) The surface of the rotor unit facing the air gap is treated with a suitable processing procedure and then covered with a non-conductive insulating material layer.

[0032] (II) The rotor unit and the adjacent rotor unit support are electrically isolated from each other by a layer of non-conductive insulating material.

[0033] (III) The metal component that carries the rotor unit in a non-electrically insulating manner is electrically isolated from the rest of the rotor unit support and from the target material and its components located inside and / or outside the driven centrifugal unit by a layer of non-conductive insulating material.

[0034] Specifically, in the individual and combined use of the three electrical insulation measures (I) to (III), it is preferable to electrically isolate the non-air gap-facing surfaces of the component containing at least the rotor unit from the rest of the active drive unit, and more preferably to electrically isolate the air gap-facing surfaces and non-air gap-facing surfaces of the component containing at least the rotor unit from the rest of the active drive unit.

[0035] Specifically, the rotor unit with radial air gap flux is generally a cylindrical structure, and the rotor unit with axial air gap flux is generally a disc structure. The surfaces of both types of rotor units include an upper surface, a lower surface, an inner surface, and an outer surface. These four surfaces can be further simply divided into surfaces facing the air gap and surfaces not facing the air gap (surfaces adjacent to the rotor unit support). Electrical insulation measures (I) are mainly for surfaces facing the air gap, while electrical insulation measures (II) and (III) are mainly for surfaces not facing the air gap. Various combinations of (I) to (III) are for surfaces facing the air gap and / or surfaces not facing the air gap. The metal parts that non-electrically insulate the rotor unit refer to the non-electrically insulated metal parts between the rotor unit and the metal parts. The metal parts that non-electrically insulate the rotor unit also include surfaces facing the air gap and surfaces not facing the air gap.

[0036] Specifically, Embodiment 1 (Figure 1) and Embodiment 3 (Figure 3) employ electrical insulation measure (II), Embodiment 4 (Figure 4) employs electrical insulation measure (III), and Embodiment 2 (Figure 2) employs electrical insulation measures (I) and (II). Figure 2B The outer and inner reinforcing ribs of the rotor unit support located on both sides between marking lines 104 and 205 are... Figure 1B By comparing the corresponding positions on both sides of the marked lines 106 and 108, it can be seen that... Figure 2B There are gaps between the inner and outer rotor units and the inner and outer reinforcing ribs, and the two do not contact each other, according to Figure 2B The active drive unit, obtained after molding the positional relationships between the various components, has its rotor unit electrically insulated from the metal components.

[0037] According to the active drive unit of the present invention, the target substance and its components refer to the mixture to be centrifuged and the various components constituting the mixture to be centrifuged. The insulating material layer includes, but is not limited to, an electrically insulating polymer material layer, a non-conductive ceramic layer composed of metal oxides located on the surface of the first and / or second metal parts, an electrically insulating skeleton for the iron core, and / or an electrically insulating coating. The selection of the electrical insulation measures is determined based on the structure of the rotor unit, the structure of the first or second metal parts, the connection method of the first and second metal parts, the structure of the driven centrifuge unit, and the structure of the active drive unit, while taking into account the criteria of facilitating production and reducing product costs.

[0038] Specifically, among the three electrical insulation measures (I), (II) and (III), the second one with the number (II) is preferred. For this electrical insulation measure, it is equivalent to the rotor unit being electrically isolated from the first and / or second metal parts by a non-conductive insulating material layer. This electrical insulation measure can expand the range of selectable structures for the first or second metal parts, the range of selectable connection methods for the first and second metal parts, or the range of selectable structures for the active drive unit, so it is preferred.

[0039] According to the active drive unit of the present invention, the rotor unit is preferably selected from any one of the four radial air gap flux structures described below (1) to (4), depending on the relative arrangement of the stator unit and the rotor unit:

[0040] (1) External stator with single internal rotor structure for radial air gap magnetic flux;

[0041] (2) Inner stator single outer rotor structure with radial air gap flux;

[0042] (3) The structure of inner and outer double stators and intermediate rotor with radial air gap flux;

[0043] (4) A dual-rotor structure combining the intermediate stator of radial air gap flux with the inner rotor and the outer rotor.

[0044] According to the active drive unit of the present invention, depending on the relative arrangement of the stator unit and the rotor unit, the rotor unit is preferably one of two structures of the axial air gap magnetic flux structure described in (5) to (6) below:

[0045] (5) A single stator and single rotor structure with axial air gap magnetic flux;

[0046] (6) The middle stator and upper and lower rotor structure of axial air gap magnetic flux.

[0047] Specifically, the rotor unit of the radial air gap magnetic flux structure motor rotor is preferably an inner rotor or an outer rotor (Figures 3 and 4), or a dual rotor structure combining an inner rotor and an outer rotor. The dual rotor structure includes two cases: the outer side is an outer rotor and the inner side is an inner rotor (Figures 1 and 2), and the outer side is an inner rotor and the inner side is an outer rotor. The motor rotor of the axial air gap magnetic flux structure is preferably a disc structure motor with a single stator and a single rotor or a middle stator and upper and lower rotors (commonly known as a disc motor).

[0048] Specifically, the rotor unit preferably features a dual-rotor structure combining a central stator with radial air gap flux, an inner rotor, and an outer rotor. This structure increases the balance of the motor rotor when it is in centrifugal operation, and allows for the selection of compatible components from direct drive motors used in washing machines, thus reducing product costs.

[0049] According to the active drive unit of the present invention, the rotor unit is preferably selected from any one of the following four structures (7) to (10), depending on the construction method of the rotor unit:

[0050] (7) A combination of conductive winding or iron core and conductive winding;

[0051] (8) Combination of iron core and permanent magnet;

[0052] (9) Combination of rotor bars, end rings and iron core;

[0053] (10) Combination of permanent magnet, rotor bars, end rings and iron core;

[0054] The permanent magnets include, but are not limited to, any one of neodymium iron boron magnets, samarium cobalt magnets, alnico magnets, ferrite magnets, plastic magnets, or combinations thereof. The rotor unit structure is preferably composed of permanent magnets and an iron core, and secondarily a combination of rotor bars, end rings, and an iron core. Of course, it can also be composed of an iron core and its current-carrying conductor windings, or other rotor unit structures.

[0055] According to the active drive unit of the present invention, the active drive unit (Figure 1, Figure 2) has two or more rotor units, wherein the rotor units are arranged in an axial array or in parallel radially with the center line of the motor shaft as the axis. The rotor units in the axial array have the same specifications, and the rotor units in the parallel radial array have different specifications (the rotor units have different radii, and the radius of the outer rotor unit is larger than that of the inner rotor unit).

[0056] According to the active drive unit of the present invention, the rotor unit support includes at least one of the following three (11) to (13):

[0057] (11) A first metal component located at the inner spacer of the rotor unit support;

[0058] (12) A second metal component located outside the rotor unit support;

[0059] (13) A molded part made of polymer material that gives the rotor unit support or active drive unit a complete structure and function.

[0060] Specifically, the rotor unit support includes any one, two, or three of the following: a first metal component, a second metal component, and a molded component consisting of a molded portion formed of polymer material relative to the metal component.

[0061] Specifically, the rotor unit, the first metal component, the second metal component, and the molded component made of polymer material are structurally compatible with each other, so that the rotor unit support or active drive unit has a complete structure and function.

[0062] According to the active drive unit of the present invention, the first metal component includes, but is not limited to, any one of the following seven structures (14) to (20):

[0063] (14) Splines of various structures;

[0064] (15) Motor shafts of various structures;

[0065] (16) A rotor insert having an inner shaft mounting structure and an outer connecting structure, wherein the rotor insert has the function of a mounting bracket;

[0066] (17) A first metal component having a partial or complete spacer;

[0067] (18) A first metal component having part or all of the spacer portion and rotor unit support portion;

[0068] (19) A first metal component having reinforcing ribs for the spacer portion and reinforcing ribs for the rotor unit support portion;

[0069] (20) A first metal component having a locking structure and / or a locking unit.

[0070] According to the active drive unit of the present invention, the second metal component includes, but is not limited to, any one of the following four structures (21) to (24):

[0071] (21) A second metal component that is roughly cylindrical or barrel-shaped;

[0072] (22) A second metal component having part or all of the spacer portion and rotor unit support portion;

[0073] (23) A second metal component having reinforcing ribs for the spacer portion and reinforcing ribs for the rotor unit support portion;

[0074] (24) A second metal part having a partial spacer and a locking structure and / or a locking unit.

[0075] Specifically, the various structures of the motor shaft mentioned in (15) preferably refer to a structure similar to the rotor insert and the motor shaft being an integral part.

[0076] Specifically, including but not limited to the rotor insert (the first metal component shown in Embodiment 2 and Figure 202) mentioned above (16), it can independently achieve the same function as the mounting bracket in Embodiment 1. Therefore, it can be used as a mounting bracket or further manufactured as a mounting bracket with an integral structure with the motor shaft. The ingenious design of this structure of the first metal component makes it widely applicable to active drive units with shaft connection methods (A), (B), and (C). Through Embodiment 2, shaft connection methods (A), (B), and (C) are organically linked together. At the same time, it is convenient to manufacture active drive units with different structures and specifications, and reduce production costs.

[0077] Specifically, under normal circumstances, the first metal component and the second metal component described in this invention are not strictly distinguished. When the active drive unit has only one type of metal component, such a distinction is meaningless. In most cases, the metal component can be regarded as both the first metal component and the second metal component. Only when the active drive unit has two types of metal components is the metal component located at the inner spacing part of the rotor unit support and associated with the shaft regarded as the first metal component, and the metal component located on the outer side of the rotor unit support regarded as the second metal component, in order to distinguish them.

[0078] Specifically, including but not limited to the first metal component in (14) to (20) and Examples 2 to 4, which can be individually combined with the rotor unit to be molded into an active drive unit using polymer material, the second metal component in (21) to (24) and Examples 1 to 3 can be individually combined with the rotor unit to be molded into an active drive unit using polymer material, and the first and second metal components that are structurally compatible with each other in (14) to (24) and Examples 2 to 3 can also be combined together with the rotor unit to be molded into an active drive unit using polymer material. Since it is rare for the same device to have two sets of locking units, it is generally not recommended to use the first metal component and the second metal component with locking units in combination.

[0079] Specifically, including but not limited to the first metal parts in (14), (16) to (20) and Examples 1 to 4 above, theoretically all can be used as second metal parts, as long as the motor shaft hole is not made during manufacturing or the motor shaft hole is sealed with polymer material when it is molded into an active drive unit. However, since the second metal part does not have a motor shaft hole, it is difficult to use it directly as the first metal part.

[0080] Specifically, the metal components in Examples 1 to 3 can be easily transformed into Example 4 with only minor modifications. The second metal component in Figure 1 can be used in combination with the first metal component in Figures 2 and 3. The first and second metal components in Figures 2 and 3 can be used in combination as in Examples 2 and 3, or in cross-combination, or individually in combination with the rotor unit. Therefore, the first and second metal components, rotor unit, and polymer material components in Figures 1 to 4 can be combined to create active drive units with various structures and their embodiments. The preferred Examples 1 to 4 only show the structures of the most representative first and / or second metal components and the most representative combination methods between them.

[0081] Specifically, the first and / or second metal components described in this invention are preferably integrally formed with the rotor unit support portion and part or all of the spacer portion. The first metal component having a locking structure and / or locking unit is particularly preferred. The locking structure and / or locking unit is formed by processing the first or second metal component, which can enhance the structural strength of the locking structure and / or locking unit. The integral forming process includes, but is not limited to, at least one forming process among molding, cutting, bending, and stamping, which facilitates manufacturing and reduces costs.

[0082] According to the active drive unit of the present invention, the first and / or second metal components are preferably made of the same material as the rotor unit core and manufactured using a suitable manufacturing process, wherein the suitable manufacturing process preferably includes at least one of molding, cutting, bending and punching processes.

[0083] According to the active drive unit of the present invention, for the first and / or second metal parts manufactured by a suitable manufacturing process (first manufacturing process), the parts corresponding to the rotor unit support and / or spacer are further processed by a suitable manufacturing process (second manufacturing process) to form at least one of the following five structures (25) to (29):

[0084] (25) Reinforcing ribs for the spacer portion, wherein the reinforcing ribs for the spacer portion are not limited to those distributed radially and / or circumferentially;

[0085] (26) Rotor unit support, wherein the rotor unit support includes, but is not limited to, cylindrical, tile-shaped, strip-shaped or columnar structures distributed circumferentially at intervals;

[0086] (27) Rotor unit support reinforcement ribs, the rotor unit support reinforcement ribs including but not limited to cylindrical, tile-shaped, strip-shaped or columnar structures distributed circumferentially;

[0087] (28) Locking structure and / or locking unit;

[0088] (29) Fan blades for cooling purposes.

[0089] According to the active drive unit of the present invention, the suitable manufacturing process (first manufacturing process, second manufacturing process) includes, but is not limited to, at least one of the following manufacturing processes: molding process, cutting process, bending process, and punching process.

[0090] Specifically, the second manufacturing process includes both further processing of the first and / or second metal parts using metal machining methods and further processing using polymer material molding methods. The resulting reinforcing ribs are classified according to their direction as axial outward reinforcing ribs (107), axial inward reinforcing ribs (109), and reinforcing ribs (301) parallel to the motor shaft direction, and radial inward reinforcing ribs (302), radial reinforcing ribs (305), radial outward reinforcing ribs (401), and circumferential reinforcing ribs (306) perpendicular to the motor shaft direction. They are also classified according to their material as metal material reinforcing ribs (107, 109, 301, 302, 401) and polymer material reinforcing ribs (305, 306). According to their location, they are classified as spacer reinforcing ribs (302, 305, 306, 401) and rotor unit support reinforcing ribs (107, 109, 301). The latter includes various forms of the former two. The first and / or second metal parts are either injection molded to form the rotor unit support, or as shown in Figure 1. Figure 5 The corresponding embodiments are injection molded to form a complete rotor unit support and locking unit.

[0091] Typically, the rotor unit support or rotor unit support reinforcing rib of the metal component is a cylindrical structure with a continuous circumferential wall, especially for most metal components manufactured using the first manufacturing process. This structure is suitable for motor rotors with radial air gap magnetic flux structures. However, an all-metal rotor unit support significantly increases the weight of the entire active drive unit. To reduce the weight of the active drive unit, it is advisable to use polymer materials with a lower specific gravity as much as possible. Multiple tile-shaped, strip-shaped, or columnar structures spaced apart along the circumferential direction, obtained by processing the first or second metal component, can serve as both rotor unit supports and metal reinforcing ribs for the rotor unit support. After the rotor unit is positioned on these structures and molded into an active drive unit, the weight of the active drive unit can be reduced accordingly. At the same time, the gaps between the tile-shaped or strip-shaped structures can simultaneously act as slots for fixing the rotor unit before or after injection molding. This is particularly suitable for the manufacture of active drive units with certain structural rotor units (such as combinations of rotor bars, end rings, and iron cores).

[0092] Specifically (Figures 1 and 2), the outer reinforcing rib (107) and inner reinforcing rib (109) of the rotor unit support are integrally formed by stamping the metal parts located at the interval position;

[0093] Specifically (Figure 3), the rotor unit support portion of the second metal component, which is integrally molded with part of the outer spacer portion, is cut and the cut part is bent to form a tile-shaped rotor unit support portion reinforcing rib (301) and a spacer portion radial inner reinforcing rib (302).

[0094] Specifically (Figure 4), the rotor unit support portion of the first metal component, which is integrally molded with part of the inner spacer portion, is cut and the cut piece is bent to form a tile-shaped rotor unit support portion reinforcing rib (301) and a spacer portion radial outer reinforcing rib (401).

[0095] According to the active drive unit of the present invention, the first and / or second metal parts manufactured by a suitable manufacturing process have, at the location of the spacer, structures for enhancing structural strength and / or for connection (hereinafter referred to as spacer reinforcement and / or connection structures) distributed at intervals around the center line of the motor shaft. These structures include, but are not limited to, at least one of the following four structures (30) to (33):

[0096] (30) Groove or slot;

[0097] (31) Through hole or snap hole;

[0098] (32) Snap-fit ​​connection structure or locking connection structure;

[0099] (33) A protrusion or a card-like protrusion;

[0100] The distribution of the above-mentioned (30) to (33) structures used to enhance structural strength and / or for connection is selected from at least one of the following two methods (34) to (35):

[0101] (34) Along the circumferential and radial directions;

[0102] (35) Along the circumferential and axial directions;

[0103] The structures described above (30) to (33) are preferably used to enhance the structural strength of the rotor unit support or the active drive unit to resist the destructive effect of centrifugal force, or preferably used for the fixed connection or molding connection between the first and second metal parts, and more preferably for both enhancement and connection.

[0104] Specifically, the structures of (30) to (33) include, but are not limited to, the reinforcing and / or connecting structures located on the first metal component and / or the second metal component, and the reinforcing and / or connecting structures formed by the reinforcing ribs of the adjacent spacer portion and / or the reinforcing ribs of the rotor unit support portion.

[0105] Specifically, the first metal component and the second metal component, which are manufactured through appropriate manufacturing processes, have grooves or slots, through holes or holes, snap-fit ​​connection structures or locking connection structures, or protrusions or clip-like protrusion connection structures that achieve fixed connection between adjacent components. Preferably, these are formed by processing the corresponding components through appropriate manufacturing processes. The appropriate manufacturing processes include, but are not limited to, at least one of molding, cutting, bending, and stamping processes. The "corresponding components" are the first metal component and the second metal component.

[0106] According to the active drive unit of the present invention, the rotor unit support having both a first metal component and a second metal component, when viewed from the axial direction, has at least one of four states in the radial direction: overlapping, crossing, opposing, and staggering (relative to opposing, the two structures are offset by a certain angle). The first metal component and the second metal component are fixedly connected in a non-electrically insulating manner or electrically isolated by being molded together with polymer material. The fixed connection method includes, but is not limited to, any one of welding, fusion, snap-fitting, crimping, plugging, interference fit, bolting, fastener connection, or a combination of both or more thereof, preferably an electrically insulating molded connection method.

[0107] Specifically, the “overlapping state” is roughly the fixed connection state between the mounting bracket (103) and the active drive unit interval (206) through the electrically insulated mounting bracket mounting hole (101) in Figure 1; the “crossing state” is divided into a cross-contact state and a preferred cross-non-contact state. The connection state between the motor shaft and the first metal component in Figures 2 and 4 is a cross-contact state; the “confrontation state” is the state between the first metal component and the second metal component with the slot (204) against the slot and the slot-shaped protrusion (205) against the slot-shaped protrusion in Figure 2; the “interlaced state” is a variant of the “confrontation state”, as shown in Figure 3 between the keyway of the first metal component (spline) and the groove of the second metal component (located between adjacent radial inner reinforcing ribs (302)).

[0108] Specifically, the first metal component in Figure 4 is fixedly connected to the motor shaft and then electrically insulated and covered by polymer material. The first metal component and the second metal component in Figures 2 and 3 are electrically insulated and connected by polymer material.

[0109] According to the active drive unit of the present invention, the upper and / or lower sides of the interval portion have radial reinforcing ribs (305) and / or circumferential reinforcing ribs (306) for strengthening the structural strength of the active drive unit. The radial and / or circumferential reinforcing ribs are preferably formed when the active drive unit with complete structure and function is molded from polymer material. The reinforcing ribs can also serve as the locking structure of the driven centrifugal unit.

[0110] According to the active drive unit of the present invention, the active drive unit or the rotor unit support for the active drive unit is preferably manufactured by any one of the following three methods (36) to (38):

[0111] (36) The component, which is manufactured by a suitable manufacturing process, is assembled and / or molded together with the rotor unit to form a rotor unit support or active drive unit.

[0112] (37) Any one, any two or all three of the first metal part, the second metal part, and the rotor unit, which are manufactured through appropriate manufacturing processes, are placed in a mold to form a rotor unit support or an active drive unit.

[0113] (38) The rotor unit is directly placed in the mold and molded into an active drive unit;

[0114] The locking structure and / or locking unit are formed synchronously with the manufacturing process.

[0115] Specifically, the suitable manufacturing process in the above methods (36) to (38) is preferably including, but not limited to, at least one of the manufacturing processes of molding, cutting, bending and stamping.

[0116] Specifically, it is preferable to mold the rotor unit together with the first and / or second metal parts into an active drive unit, more preferably to place the rotor unit and various sizes of metal splines in a mold and mold them into an active drive unit with polymer material, and particularly preferably (38) to directly mold the rotor unit with polymer material into an active drive unit for use with the mounting bracket, while forming a locking structure and / or locking unit for the driven centrifugal unit.

[0117] According to the active drive unit or solid-liquid separation device of the present invention, the locking structure for preventing circumferential and / or axial movement between the active drive unit and the driven centrifugal unit, with the motor shaft centerline as the axis and distributed at intervals on the active drive unit and / or driven centrifugal unit, includes, but is not limited to, at least one of the following five structures (39) to (43):

[0118] (39) Groove or slot;

[0119] (40) Through holes or snap holes (110, 305);

[0120] (41) Snap-fit ​​connection structure or locking connection structure;

[0121] (42) A protrusion or a card-like protrusion;

[0122] (43) A pivotally lockable arcuate protrusion (115, 310), the single arcuate protrusion having a slope that gradually decreases in height from one end to the other.

[0123] The locking structures located on the driven centrifuge unit and the active centrifuge unit are mutually adapted to prevent relative movement (circumferential and / or axial movement) between the driven centrifuge unit and the active centrifuge unit and / or between the components of the driven centrifuge unit, and to release the locking state.

[0124] Specifically, the selection of the shape of the card hole in (40) is based on minimizing stress fatigue damage at the connection between the active drive unit and the driven centrifugal unit. The preferred shape is an arc-shaped card hole (305), and its position is preferably at the edge of the interval. The arc-shaped protrusion in (43) is located on the locking post, locking cylinder, and locking member. Axial locking between the two is achieved by the relative rotation (i.e., pivoting) between the locking member and the locking post and locking cylinder. The arc-shaped protrusion obtained after axial locking has the same height at both ends.

[0125] According to the active drive unit or solid-liquid separation device of the present invention, the locking unit located on the driven centrifuge unit and the active centrifuge unit for preventing relative movement (circumferential and / or axial movement) between the driven centrifuge unit and the active centrifuge unit and / or between the components of the driven centrifuge unit includes:

[0126] Including but not limited to the locking structures described in (39) to (43) above, wherein the locking structure is preferably located on the active drive unit, the driven centrifugal unit, the locking column or the locking cylinder;

[0127] A locking post or locking cylinder, preferably located on the center line of the motor shaft inside the interval of the active drive unit, and preferably the locking post or locking cylinder and the locking structure thereon are integrally formed with the active drive unit;

[0128] As an optional structure, the elastic element is located on the locking post or locking cylinder, including but not limited to a sealing rubber ring or a metal spring, which provides sealing and / or axial locking force;

[0129] The locking element has a locking structure that cooperates with the locking structure on the locking post or locking cylinder. The locking and / or unlocking of the driven centrifugal unit is achieved by the rotational movement of the locking element around the locking post or locking cylinder, or by the axial and / or radial linear movement (such as pulling, inserting, pressing) of the locking element on the locking post or locking cylinder.

[0130] Specifically, the locking unit includes, but is not limited to, the following: Figure 6 , Figure 7 The structure shown, in which Figure 7 The locking unit includes a locking pin (309), a metal spring (602), and a locking element (601). Figure 6 The locking unit includes a locking cylinder (114) and a locking element (501). Figure 2D For locking cylinder, Figure 3D , Figure 4C The locking post or locking cylinder is preferably located at the center line of the motor shaft inside the interval of the active drive unit.

[0131] Specifically, the driven centrifugal unit, structurally adapted to the locking unit, is positioned on the active drive unit, and then... Figure 6 Locking element B(501) in B is snapped inwards. Figure 6 Simply rotate and tighten the locking cylinder (114) in A, or... Figure 7 The locking element D(601) in D is snapped inwards. Figure 7 Simply rotate and tighten the locking cylinder (114) in E.

[0132] According to the active drive unit or solid-liquid separation device of the present invention, in further detail, the locking units distributed and mutually adapted on the active drive unit and the driven centrifugal unit with the motor shaft centerline as the axis include:

[0133] (44) The central structural portion located at the center line of the motor shaft inside the partition; and

[0134] (45) The edge structure part located on the outside of the interval, away from the center line of the motor shaft;

[0135] The central and peripheral structural parts work together to achieve locking between the driven centrifugal unit and the active centrifugal unit, and / or between the components of the driven centrifugal unit, as well as to release the locked state.

[0136] Specifically, the central structural portion of the locking unit is preferably formed when it is molded from polymer material into an active drive unit with complete structure and function.

[0137] According to the present invention, the solid-liquid separation device includes at least:

[0138] A stator assembly comprising at least one stator unit adapted to a rotor unit, the stator unit and the rotor unit constituting an electromechanical device capable of generating rotational motion through electromagnetic interaction;

[0139] Any active drive unit having a locking structure and / or locking unit, wherein the active drive unit is fixed to the bottom of the centrifugal liquid collection and discharge unit by a rotating support unit;

[0140] A driven centrifugal unit, wherein the driven centrifugal unit is adapted to an active drive unit having a locking structure and / or a locking unit;

[0141] A centrifugal liquid collection and discharge unit with a roughly barrel-shaped structure, including an attached top cover;

[0142] A rotating support unit, the rotating support unit including at least a motor shaft, a bearing housing, and a bearing;

[0143] The stator assembly, bearing housing, and bearings are arranged at the bottom of the centrifugal liquid collection and discharge unit, which is roughly barrel-shaped, with their shafts coinciding with the shaft of the motor.

[0144] According to any of the active drive units or solid-liquid separation devices of the present invention, the polymer material used in its manufacture is selected from polyolefins (including polypropylene (PP), polyethylene (PE), polybutene-1 (PB-1)) or halogenated polyolefins, polycyclic olefins, polysulfones, polyetherketones, polyesters, polyacrylates, polymethacrylates, polyamides (PA), polyimides, polycarbonates (PC), polyurethanes, polyacetals, polystyrene (PS), acrylonitrile / butadiene styrene copolymers (ABS), liquid crystal polymers (LCP), and polyphenylene sulfide (PPS), or copolymers of two or more of these, wherein polymer materials with strong resistance to acids, alkalis and / or organic solvents are preferred to improve the service life of the device.

[0145] More specifically, the polymer material is preferably a reinforcing polymer material, which comprises at least 5% to 50% by weight, preferably 7% to 30% by weight, fiber-reinforcing filler.

[0146] More specifically, polypropylene comprising 7% to 12% glass fiber reinforced filler by weight is particularly preferred.

[0147] Beneficial effects:

[0148] Compared with the prior art, the active drive unit and its solid-liquid separation device provided by the present invention have the following advantages:

[0149] (1) The equipment is simple to manufacture and assemble, the whole machine is lightweight and easy to transport;

[0150] (2) The electrical insulation measures adopted by the active drive unit improve the safety of the entire equipment;

[0151] (3) The active drive unit directly drives the centrifuge unit to perform solid-liquid separation tasks, with high electrical / mechanical energy conversion efficiency, reducing the energy consumption of the equipment operation:

[0152] (4) The equipment has high coaxiality and operates stably and quietly, avoiding the vibration and noise caused by coaxiality deviation in conventional belt-driven solid-liquid separation equipment;

[0153] (5) The replacement of the driven centrifuge unit and the cleaning and verification of the equipment are very easy;

[0154] (6) The equipment is easy to maintain and has low operating costs. Attached Figure Description

[0155] Figure 1 is a schematic diagram of the active drive unit 1 with a locking structure and a locking unit;

[0156] Figure 2 is a schematic diagram of the active drive unit 2 with a locking structure and locking unit;

[0157] Figure 3 is a schematic diagram of the active drive unit 3 with a locking structure and a locking unit;

[0158] Figure 4 is a schematic diagram of the active drive unit 4 with a locking structure and locking unit;

[0159] Appendix Figure 5 A schematic diagram of the active drive unit 5 with locking structure and locking unit for molding;

[0160] Appendix Figure 6 This is a schematic diagram of the locking unit 1 structure;

[0161] Appendix Figure 7 This is a schematic diagram of the locking unit 2 structure;

[0162] in:

[0163] 101. Mounting bracket mounting hole; 102. Motor shaft hole; 103. Mounting bracket;

[0164] 104. Inner rotor unit; 105. Permanent magnet; 106. Outer rotor unit;

[0165] 107. External reinforcing rib; 108. Connecting bridge; 109. Internal reinforcing rib;

[0166] 110. Card hole A; 111. Injection molding insulation hole; 112. Outer rotor;

[0167] 113. Inner rotor; 114. Locking cylinder; 115. Arc-shaped protrusion A;

[0168] 116. Insulation layer E; 117. Insulation layer F; 118. Insulation layer G;

[0169] 119. Insulation layer H; 201. Motor shaft; 202. First metal component;

[0170] 203. Through hole; 204. Slot A; 205. Clip-shaped protrusion;

[0171] 206. Spacing section; 207. Insulation layer I; 208. Insulation layer J;

[0172] 301. Reinforcing rib; 302. Radial inner reinforcing rib; 303. Spline;

[0173] 304. Slot B; 305. Slot B; 306. Second metal component;

[0174] 307. Radial stiffener; 308. Circumferential stiffener; 309. Locking column;

[0175] 310. Arc-shaped protrusion B; 401. Radial outer reinforcing rib; 501. Locking element B;

[0176] 502, Locking head; 601, Locking component D; 602, Spring. Detailed Implementation

[0177] The exemplary embodiments of the active drive unit and its solid-liquid separation device of the present invention are described below with reference to the accompanying drawings.

[0178] "Circumferential direction" refers to the circumferential direction of the circle formed with a point on the center line of the motor shaft as the center, which is perpendicular to the center line of the motor shaft.

[0179] "Axial direction" refers to the direction that coincides with or is parallel to the center line of the motor shaft;

[0180] "Radial" refers to the radial direction perpendicular to the centerline of the motor shaft and passing through the center of a circle located on the centerline; "interference fit" refers to the connection between two parts by using interference fit between the parts, and its assembly methods include press-fit, thermal expansion fit, cold contraction fit, etc.

[0181] "Snap-fit" refers to a connection method that restricts relative displacement between two parts by interlocking grooves and protrusions, slots / holes / mouths and buckles, or dovetail grooves and dovetail tenons.

[0182] "Molding" refers to the process of obtaining an object with a target geometric shape by using a mold in the production process, including but not limited to stamping, blanking, casting, injection molding, etc. "Welding" is a special form of "molding".

[0183] "Cutting and shaping" refers to the process of obtaining a target geometric shape using processes other than "molding", including but not limited to turning, planing, milling, drilling, grinding, cutting, etc.

[0184] "Bending and shaping" refers to the process of obtaining a target geometric shape by means of processes including but not limited to rolling, winding, and bending, such as rolling or winding an object into a cylindrical object or bending it into any angle.

[0185] Example 1

[0186] Figure 1 shows a schematic diagram of the active drive unit in this embodiment.

[0187] like Figure 1AAs shown, the integrally stamped second metal part has an outer reinforcing rib (107) and an inner reinforcing rib (109) of the rotor unit support, an injection molding insulation hole (111), a connecting bridge (108), a through hole for enhancing the structural strength after injection molding, and a snap hole A (110) for fixing the driven centrifugal unit. The mounting bracket (103) has a mounting bracket mounting hole (101) and a motor shaft hole (102).

[0188] like Figure 1B As shown, the second metal component and the rotor unit (105, 106) consisting of a magnetic yoke and a permanent magnet (105) attached thereto are positioned in a mold, wherein the rotor unit (105, 106) does not contact the outer and inner reinforcing ribs of the rotor unit support, and then injection molded into shape. Figure 1C The active drive unit shown has an outer rotor (112), an inner rotor (113), a locking cylinder (114), a locking structure - an arc-shaped protrusion A (115), an electrically insulated mounting bracket mounting hole (101), and as shown in the figure. Figure 1D The electrically insulating layers E (116), F (117), G (118), and H (119) are shown located between the rotor unit and the second metal component.

[0189] Finally, the mounting component, after being fixedly connected to the motor shaft and the mounting bracket, is fixed to the spacer through the mounting bracket mounting hole (101) to obtain a complete active drive unit.

[0190] Example 2

[0191] Figure 2 shows a schematic diagram of the active drive unit in this embodiment.

[0192] like Figure 2A As shown, the first and second metal parts are formed by integral stamping. The first metal part (202) has a motor shaft hole, a through hole (203) for enhancing the structural strength after injection molding, a snap-shaped protrusion, and a slot A (204) formed by adjacent snap-shaped protrusions. The second metal part has a radial connecting bridge (located at position shown in 108) and a circumferential connecting bridge (located perpendicular to the radial connecting bridge in the circumferential direction), an outer reinforcing rib and an inner reinforcing rib of the rotor unit support, a through hole (203) for enhancing the structural strength after injection molding, a locking structure - snap hole A (110) located at the edge of the spacer (206), a snap-shaped protrusion (205), and a slot A formed by adjacent snap-shaped protrusions.

[0193] like Figure 2B As shown, after fixing the first metal component to the motor shaft, it, along with the second metal component and the rotor units (105, 106), are positioned together in the mold (the rotor units do not contact the reinforcing ribs of the rotor unit support), and then injection molded. Figure 2CThe active drive unit shown has an outer rotor (112), an inner rotor (113), a motor shaft (201), and insulating layers I (207) and J (208) formed by a spraying process for electrical insulation from the stator unit, as well as... Figure 2D The locking cylinder (114), the locking structure - arc-shaped protrusion A (115), and the locking structure - card hole A located at the edge of the interval are shown.

[0194] Example 3

[0195] Figure 3 shows a schematic diagram of the active drive unit in this embodiment.

[0196] like Figure 3A As shown, the integrally stamped second metal part (306) has a rotor unit support reinforcing rib (301), a spacer radial inner reinforcing rib (302), a driven centrifugal unit locking structure-card hole B (305) located at the edge of the spacer, a through hole (203) located on the spacer radial inner reinforcing rib for enhancing the structural strength after injection molding, and a slot B (304) formed by adjacent spacer radial inner reinforcing ribs.

[0197] like Figure 3B As shown, the first metal component—spline (303), the second metal component, and the rotor unit (106) are positioned together in the mold, wherein the rotor unit does not contact the rotor unit support reinforcing rib, and then injection molded as shown. Figure 3C and Figure 3D The active drive unit shown has an outer rotor (112), injection-molded radial reinforcing ribs (307) and circumferential reinforcing ribs (308), a driven centrifugal unit locking structure - a locking hole B located at the edge of the interval, and a locking post (309) and a locking structure - an arc-shaped protrusion B (310).

[0198] Example 4

[0199] Figure 4 shows a schematic diagram of the active drive unit in this embodiment.

[0200] like Figure 4A As shown, the first metal part formed by integral stamping has a motor shaft hole (102), a through hole (203) for enhancing the structural strength after injection molding, a rotor unit support reinforcement rib (301), a spacer radial outer reinforcement rib (401), and a driven centrifugal unit locking structure - a locking hole A (110) located on the spacer radial outer reinforcement rib.

[0201] like Figure 4BAs shown, after fixing the first metal component to the motor shaft, it is positioned together with the rotor unit (106) in the mold (the rotor unit is in contact with the reinforcing ribs of the rotor unit support), and then injection molding is performed (the injection molding material covers the entire first metal component and the end of the motor shaft to obtain electrical insulation for the centrifuged target material and its components), thereby obtaining the desired shape. Figure 4C and Figure 5 The complete structure of the active drive unit shown has an outer rotor (112), a motor shaft (201), injection-molded radial reinforcing ribs (307) and circumferential reinforcing ribs (308), as well as a locking post (309) and a locking structure - an arc-shaped protrusion B (310).

[0202] The above description of the embodiments is intended to enable those skilled in the art to understand and apply the present invention. It is obvious to those skilled in the art that they can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative effort. Therefore, the present invention is not limited to the embodiments described herein. Any improvements and modifications made to the present invention by those skilled in the art based on the disclosure of the present invention should be within the protection scope of the present invention.

Claims

1. An active drive unit, characterized in that, include: At least one rotor unit, which causes the active drive unit to rotate about the center line of the motor shaft through a rotational force generated by electromagnetic interaction between the rotor unit and the adapted stator unit. The driven centrifuge unit locking unit is used to lock and unlock the driven centrifuge unit, so that the driven centrifuge unit is locked to the top of the partition and rotates at the same speed and on the same axis as the active drive unit. The spacer section encloses the top of the rotor unit support section, which supports the rotor unit support section and the driven centrifugal unit and controls the flow direction of the target material and its components in the centrifugal state. At least one rotor unit support for carrying a rotor unit; The driven centrifuge unit locking unit includes: The locking pin or locking cylinder is located at the center of the interval section; Locking components that cooperate with locking pins or locking cylinders; A locking and unlocking structure, wherein the locking and unlocking structure is located on the spacer, rotor unit support, locking member, locking post or locking cylinder; The driven centrifugal unit locking unit achieves locking and unlocking of the driven centrifugal unit and the active drive unit through locking and unlocking structures and the mutual cooperation between the locking element and the locking post or locking cylinder; The active drive unit is connected to the motor shaft via any of the following shaft connection methods (A) to (C): (A) Through the motor shaft mounting hole located in the center of the spacer; (B) The mounting bracket is fixedly connected to the spacer and the motor shaft by means of a mounting bracket; (C) The motor shaft and the active drive unit are integrated into one structure; The spacer portion and the rotor unit support portion together form a longitudinal section. The integrated structure of the type, the The molded structure includes a metal structure portion derived from at least one metal component and / or a molded structure portion derived from a polymer material, wherein a first metal component is located at the position of the inner spacer of the active drive unit, and a second metal component is located at the position of the outer side of the active drive unit. The active drive unit described herein has at least one of the following two electrical insulation measures (I) to (II): (I) The rotor unit has at least one non-conductive insulating material layer covering the surface facing the air gap; (II) The rotor unit and the adjacent rotor unit support are electrically isolated from each other by a layer of non-conductive insulating material. The rotor unit support includes a driven centrifugal unit locking unit, a spacer, and a rotor unit support.

2. The active drive unit according to claim 1, characterized in that, The rotor unit includes: The combination of iron core and conductive winding; The combination of iron core and permanent magnet; The combination of rotor bars, end rings, and iron core; One of four structures: permanent magnet, rotor bar, end ring, and iron core; The active drive unit having two or more rotor units has its rotor units arranged axially or radially in parallel with the motor shaft centerline as the axis.

3. The active drive unit according to claim 2, characterized in that, The active drive unit includes one of the following structures: Radial air gap magnetic flux outer stator single inner rotor structure; Inner stator single outer rotor structure with radial air gap flux; A structure with inner and outer double stators and an intermediate rotor for radial air gap magnetic flux; A dual-rotor structure combining a central stator with radial air gap flux and an inner and outer rotor; A single-stator, single-rotor structure with axial air gap flux; The structure of the middle stator and upper and lower rotors with axial air gap magnetic flux.

4. The active drive unit according to claim 3, characterized in that, Manufacturing the active drive unit includes at least: The process of molding the rotor unit and at least one of the metal components into a polymer material; or The process of directly molding the rotor unit from polymer material; The driven centrifugal unit locking unit is formed synchronously with the manufacturing process; The active drive unit has both a first metal component and a second metal component, which are electrically isolated from each other.

5. The active drive unit according to claim 4, characterized in that, The first metal component includes one of the following structures: spline; A rotor insert having an inner shaft mounting structure and an outer connecting structure, the rotor insert having the function of a mounting bracket; A first metal component with reinforcing ribs in the spacer section; A first metal component having reinforcing ribs for the spacer section and reinforcing ribs for the rotor unit support section.

6. The active drive unit according to claim 4, characterized in that, The second metal component includes one of the following structures: The second metal component is roughly cylindrical. A second metal component with reinforcing ribs in the spacer section; A second metal component having reinforcing ribs for the spacer section and reinforcing ribs for the rotor unit support section.

7. The active drive unit according to any one of claims 1 to 6, characterized in that, The Driven centrifugal unit The locking unit also includes: An elastic element, comprising one of a sealing rubber ring and a metal spring, is located on a locking post or locking cylinder, and provides a sealing or axial locking force.

8. A solid-liquid separation device, comprising: A stator assembly comprising at least one stator unit adapted to a rotor unit, the stator unit and the rotor unit constituting an electromechanical device capable of generating rotational motion through electromagnetic interaction; A driven centrifugal unit, which is adapted to an active drive unit having a locking unit; A centrifugal liquid collection and discharge unit with a generally barrel-shaped structure, including an attached top cover, the centrifugal liquid collection and discharge unit being used for the collection and discharge of centrifugal liquid; A rotating support unit, the rotating support unit including at least a motor shaft, a bearing housing, and a bearing; The stator assembly, bearing housing, and bearing are arranged at the bottom of the centrifugal liquid collection and discharge unit with their shafts coinciding with the shaft center of the motor. Its characteristic is that it further includes: The active drive unit according to any one of claims 1 to 7, wherein the active drive unit is fixed to the bottom of the centrifugal liquid collection and discharge unit by a rotating support unit.

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