Adjustable speed magnetic coupling module

Abstract

The utility model discloses a kind of adjustable speed magnetic coupling module, including base, shell is fixedly arranged on base, installation cavity is opened in shell, working part is arranged in installation cavity, and adjusting component is arranged on working part;Adjusting component, including motor fixedly arranged in shell, shaft connector is arranged on shell inner wall, screw rod is connected on shaft connector, driving nut is engaged on screw rod, first bearing is set on driving nut, the utility model, by built-in screw rod nut mechanism and magnetic circuit asymmetric design, realizes mechanical stepless speed regulation under the premise of guaranteeing complete sealing, compact and reliable structure, effectively solve the defects of traditional device in harsh environment speed regulation difficulty, easy to leak and high energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to an adjustable speed magnetic coupling module. Background Technology

[0002] Existing magnetic couplings are mostly fixed magnetic circuit structures with non-adjustable output speed, while solutions using external frequency converters or complex mechanical adjustments suffer from high system costs, poor sealing reliability, and insufficient dynamic response. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as "fixed magnetic circuit structure, non-adjustable output speed, and the high system cost, poor sealing reliability, and insufficient dynamic response of external frequency conversion or complex mechanical adjustment schemes," and to propose an adjustable speed magnetic coupling module.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An adjustable speed magnetic coupling module includes: a base, a housing fixedly mounted on the base, an installation cavity formed inside the housing, a working component disposed inside the installation cavity, and an adjustment component disposed on the working component; The adjusting component includes a motor fixedly installed inside the housing, a shaft connector provided on the inner wall of the housing, a lead screw connected to the shaft connector, a drive nut engaged on the lead screw, and a first bearing provided on the drive nut.

[0005] In a preferred embodiment of the adjustable speed magnetic coupling module of this utility model, the working component includes an input shaft disposed at the bottom of the housing, an inner magnetic rotor connected to the input shaft, an output shaft disposed at the upper end of the housing, and an outer magnetic rotor disposed on the output shaft.

[0006] In a preferred embodiment of the adjustable speed magnetic coupling module of this utility model, an adjusting ring is provided on the outer magnetic rotor, and the adjusting ring is axially connected to the outer magnetic rotor through a second bearing.

[0007] In a preferred embodiment of the adjustable speed magnetic coupling module of this utility model, the first bearing is located between the adjusting ring and the drive nut, and is a deep groove ball bearing.

[0008] As a preferred embodiment of the adjustable speed magnetic coupling module of this utility model, the housing is further provided with a position sensor for detecting the axial displacement of the adjusting ring, and the position sensor is electrically connected to an external control unit.

[0009] Compared with the prior art, the beneficial effects of this utility model are: Through the built-in lead screw and nut mechanism and the asymmetrical design of the magnetic circuit, mechanical stepless speed regulation is achieved while ensuring complete sealing. The structure is compact and reliable, effectively solving the defects of traditional devices such as difficulty in speed regulation, easy leakage and high energy consumption in harsh environments. Attached Figure Description

[0010] Figure 1 This is a perspective view of an adjustable speed magnetic coupling module proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of an adjustable speed magnetic coupling module proposed in this utility model. Figure 3 This is a schematic diagram of the adjustment component structure of an adjustable speed magnetic coupling module proposed in this utility model; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0011] In the diagram: 101, base; 102, housing; 201, mounting cavity; 202, working component; 2021, input shaft; 2022, inner magnetic rotor; 2023, outer magnetic rotor; 2024, output shaft; 203, adjusting component; 2031, motor; 2032, shaft connector; 2033, lead screw; 2034, adjusting ring; 2035, first bearing; 2036, drive nut. Detailed Implementation

[0012] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] Reference Figures 1-4An adjustable speed magnetic coupling module includes a base 101, a housing 102 fixedly mounted on the base 101, an installation cavity 201 inside the housing 102, a working component 202 inside the installation cavity 201, and an adjustment component 203 mounted on the working component 202. Considering the need to achieve power transmission and speed regulation under completely sealed conditions, and to ensure structural compactness and operational reliability, the adjustment component 203 includes a motor 2031 fixedly mounted inside the housing 102, a shaft connector 2032 mounted on the inner wall of the housing 102, a lead screw 2033 connected to the shaft connector 2032, a drive nut 2036 meshing on the lead screw 2033, and a first bearing 2035 mounted on the drive nut 2036.

[0015] The working component 202 includes an input shaft 2021 located at the bottom of the housing 102, with an inner magnetic rotor 2022 connected to the input shaft 2021. An output shaft 2024 is located at the upper end of the housing 102, with an outer magnetic rotor 2023 mounted on the output shaft 2024. To effectively transmit the speed regulation action to the magnetic rotor and decouple the rotational motion, an adjusting ring 2034 is provided on the outer magnetic rotor 2023. The adjusting ring 2034 and the outer magnetic rotor 2023 are axially connected via a second bearing. A first bearing 2035 is located between the adjusting ring 2034 and the drive nut 2036 and is a deep groove ball bearing to isolate the axial thrust transmission from the circumferential rotation. To accurately control the speed regulation position, a position sensor is also provided on the housing 102 to detect the axial displacement of the adjusting ring 2034. The position sensor is electrically connected to an external control unit.

[0016] Furthermore, the magnetic poles of the inner magnetic rotor 2022 and the outer magnetic rotor 2023 are not uniformly and symmetrically distributed in the axial direction, and there is a specific functional relationship between their magnetic coupling strength and axial position. In summary, the working principle of this solution is as follows: External power is input through the input shaft 2021, and drives the outer magnetic rotor 2023 and output shaft 2024 to rotate via the inner magnetic rotor 2022 through magnetic coupling. When speed adjustment is required, the control unit starts the motor 2031, which drives the lead screw 2033 to rotate, thereby causing the drive nut 2036 to generate axial displacement. This displacement pushes the adjusting ring 2034 to move axially through the first bearing 2035. The adjusting ring 2034 then drives the outer magnetic rotor 2023 to move axially through the second bearing, changing the magnetic coupling area between the inner and outer magnetic rotors 2022 and 2023, thereby realizing stepless adjustment of the output speed. During this process, the position sensor detects the position of the adjusting ring 2034 in real time and feeds it back to the control unit, forming a closed-loop control to ensure speed adjustment accuracy and stability.

[0017] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0018] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A speed-adjustable magnetic coupling module, comprising: A base (101) is provided, on which a housing (102) is fixedly mounted. An installation cavity (201) is provided within the housing (102). A working component (202) is provided within the installation cavity (201), and an adjustment component (203) is provided on the working component (202). The feature is that: The adjusting component (203) includes a motor (2031) fixedly installed inside the housing (102). A shaft connector (2032) is provided on the inner wall of the housing (102). A lead screw (2033) is connected to the shaft connector (2032). A drive nut (2036) is engaged on the lead screw (2033). A first bearing (2035) is provided on the drive nut (2036).

2. The adjustable speed magnetic coupling module according to claim 1, characterized in that: The working component (202) includes an input shaft (2021) disposed at the bottom of the housing (102), an inner magnetic rotor (2022) connected to the input shaft (2021), an output shaft (2024) disposed at the upper end of the housing (102), and an outer magnetic rotor (2023) disposed on the output shaft (2024).

3. The adjustable speed magnetic coupling module according to claim 2, characterized in that: An adjusting ring (2034) is provided on the outer magnetic rotor (2023), and the adjusting ring (2034) is axially connected to the outer magnetic rotor (2023) through a second bearing.

4. The adjustable speed magnetic coupling module according to claim 3, characterized in that: The first bearing (2035) is located between the adjusting ring (2034) and the drive nut (2036) and is a deep groove ball bearing.

5. The adjustable speed magnetic coupling module according to claim 3, characterized in that: The housing (102) is also provided with a position sensor for detecting the axial displacement of the adjusting ring (2034), and the position sensor is electrically connected to the external control unit.

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