An electromagnetic tension superposition mechanism

Abstract

This utility model relates to an electromagnetic tension superposition mechanism, belonging to the field of torque adjustment technology. The mechanism includes an axially superimposed first tension generating unit (magnetically controlled slip mechanism) and a second tension generating unit (electromagnetic tension control mechanism). The first tension generating unit consists of a conductor ring and a magnet ring, while the second tension generating unit consists of an electromagnetic component and a magnetically conductive disc. Both units have their inputs connected to the same main shaft, and their outputs work together at the output end. The core innovation lies in the electromagnetic control employed in the second tension generating unit: by adjusting the magnitude and direction of the current in the electromagnetic coil, the magnetic field strength and polarity are changed in real time, thereby precisely controlling the tension applied to the magnetically conductive disc. Combined with the speed difference-related torque of the magnetically controlled slip mechanism, a dual-torque superposition output is achieved. This utility model solves the problems of lag and lack of dynamic response in traditional mechanisms, possessing advantages such as stepless tension adjustment and support for automated closed-loop control, making it suitable for precision tension control in high-end winding / unwinding equipment.

Description

Technical Field

[0001] This utility model relates to a torque adjustment structure, and more particularly to an electromagnetic tension superposition mechanism. Background Technology

[0002] In industrial production processes such as winding and unwinding, precise control of material tension is crucial. Traditional tension control mechanisms, such as magnetic powder clutches / brakes, suffer from problems such as easy magnetic powder leakage and unstable operation. While tension mechanisms combining magnetic slip and hysteresis control improve torque limits and stability, their adjustment often relies on manual mechanical adjustments, such as changing the relative position of permanent magnets. This method is cumbersome, slow in response, and cannot achieve dynamic online adjustment, limiting its application in high-end automated equipment. Utility Model Content

[0003] In view of the above situation, it is necessary to provide an electromagnetic tension adjustment superposition mechanism to solve at least one of the above problems, comprising:

[0004] First tension generating section and second tension generating section;

[0005] The first tension generating section includes a first input section and a first output section;

[0006] The second tension generating section includes a second input section and a second output section;

[0007] The first input section and the second input section are connected to the same power source;

[0008] The first output unit and the second output unit are connected to the same output terminal;

[0009] The second tension generating unit is characterized by being an electromagnetic tension control mechanism, wherein the tension it generates is controlled by adjusting its operating current.

[0010] Preferably, the first tension generating part and the second tension generating part are axially superimposed.

[0011] Preferably, the first tension generating part is a magnetically controlled slip mechanism, including a conductor ring (1) and a magnet ring (2);

[0012] The second tension generating part is the electromagnetic tension control mechanism, which includes an electromagnetic component (3) and a magnetic disk (4);

[0013] An air gap exists between the conductor ring (1) and the magnet ring (2);

[0014] There is an air gap between the electromagnetic component (3) and the magnetic disk (4).

[0015] Preferably, the electromagnetic component (3) includes an iron core (31) and an electromagnetic coil (32) wound on the iron core (31);

[0016] The electromagnetic coil (32) is connected to an adjustable power supply. By changing the magnitude and / or direction of the current input to the electromagnetic coil (32), the magnetic field strength and polarity generated by the electromagnetic component (3) can be adjusted, thereby controlling the tension applied to the magnetic disk (4).

[0017] Preferably, the conductor ring (1) and the electromagnetic component (3) are coaxial and rotate together;

[0018] Both are connected to the main spindle (5).

[0019] Preferably, the magnet ring (2) and the magnetic disk (4) are coaxial and rotate together.

[0020] Preferably, the adjustable power supply is an intelligent power supply controlled by a programmable logic controller (PLC) or a microcontroller unit (MCU), which can automatically adjust the current according to a preset program or external sensor signals to achieve automated closed-loop control of tension. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the electromagnetic component according to an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the electromagnetic tension superposition mechanism of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "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," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1 to 3 This utility model discloses an electromagnetic tension superposition mechanism, comprising a magnetically controlled slip mechanism as a first tension generating unit and an electromagnetic tension control mechanism as a second tension generating unit. The torques generated by the two mechanisms are superimposed to increase the overall torque limit and dynamic adjustment range of the mechanism. The magnetically controlled slip mechanism provides a basic variable torque related to the speed difference, while the electromagnetic tension control mechanism provides a basic torque that can be adjusted accurately and in real time via an electrical signal. Through electrical signal control, the magnitude and direction of the current can be easily adjusted, thereby quickly and accurately controlling the tension, greatly improving the overall controllability and automation level of the mechanism.

[0028] Embodiment 1 of this utility model, as follows: Figure 1 as well as Figure 2 As shown, the magnetically controlled slip mechanism includes a conductor ring (1) as the first input and a magnet ring (2) as the first output; the electromagnetic tension control mechanism includes an electromagnetic component (3) as the second input and a magnetic disk (4) as the second output.

[0029] The first input section (conductor ring 1) and the second input section (electromagnetic component 3) are simultaneously connected to the main shaft (5) and driven to rotate by the main shaft (5). The first output section (magnetic ring 2) and the second output section (magnetic disk 4) generate torque when they rotate relative to their respective input sections. The first output section and the second output section are directly or indirectly connected, causing the two parts to rotate synchronously. Therefore, the torques generated by the two parts are superimposed and act together on the final power output component.

[0030] Furthermore, such as Figure 1 as well as Figure 2 As shown, the conductor ring (1) and the electromagnetic component (3) are directly fixed to the main shaft (5). The magnet ring (2) is mounted on the main shaft (5) via a bearing (7), the outer rotating ring (8) is mounted on the magnet ring (2), and the magnetic disk (4) is mounted on the outer rotating ring (8). The outer rotating ring (8) is the power output component of the tension superposition mechanism.

[0031] The core improvement lies in the second tension generating section. The electromagnetic component (3) replaces the original permanent magnet structure, and it mainly consists of an iron core (31) and an electromagnetic coil (32) wound around it. The electromagnetic coil (32) is connected to an external adjustable power supply (not shown) through conductive structures such as brushes or slip rings.

[0032] Its working principle is as follows: When the adjustable power supply provides current to the electromagnetic coil (32), the iron core (31) is energized, generating a strong magnetic field. This magnetic field passes through the air gap and acts on the magnetic disk (4). When the spindle (5) drives the electromagnetic component (3) to rotate, and there is a speed difference at the output end (magnetic disk 4), the magnetic field will induce a hysteresis effect in the hard magnetic material of the magnetic disk (4), thereby generating a smooth braking torque, i.e., tension, that is independent of the rotational speed.

[0033] The significant advantages of this utility model are:

[0034] Dynamic and precise adjustment: Operators or automated systems can linearly and steplessly change the magnetic field strength by changing the current supplied to the electromagnetic coil (32), thereby achieving real-time, precise, and wide-range adjustment of the tension.

[0035] Rapid response: The response speed of electrical signals is much faster than that of mechanical adjustment, enabling this mechanism to adapt to working conditions where tension needs to change rapidly.

[0036] Easy to automate: It can form a closed-loop control system by combining a tension sensor with a PLC or microcontroller to achieve fully automated and intelligent tension management without manual intervention.

[0037] As a second embodiment of the present invention, the positions of the conductor ring (1) and the magnet ring (2) can be interchanged, that is, the conductor ring (1) serves as the first output part and the magnet ring (2) serves as the first input part.

[0038] As a third embodiment of this utility model, the fixed positions of the electromagnetic component (3) and the magnetic disk (4) can also be interchanged, that is, the electromagnetic component (3) is fixed on the outer rotating ring (8) as the second output part, and the magnetic disk (4) is fixed on the main shaft as the second input part.

[0039] It is easy to understand that Embodiments 2 and 3 can also be combined, as long as the torque of the two parts is superimposed. The fixing method of the components, the locking structure, and the specific structure of the slip ring for current introduction are all changes to the conventional structure, so they will not be described in detail.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model's technical solution, such as designing the iron core of the electromagnetic component in different shapes (e.g., claw pole type) to optimize the magnetic circuit, shall still fall within the scope of the present utility model's technical solution.

Claims

1. An electromagnetic tension adjustment superimposition mechanism, characterized by: include: First tension generating section and second tension generating section; The first tension generating section includes a first input section and a first output section; The second tension generating section includes a second input section and a second output section; The first input section and the second input section are connected to the same power source; The first output unit and the second output unit are connected to the same output terminal; The second tension generating unit is characterized by being an electromagnetic tension control mechanism, wherein the tension it generates is controlled by adjusting its operating current.

2. The electromagnetic adjust-tension superimposing mechanism according to claim 1, characterized by: The first tension generating part and the second tension generating part are axially superimposed.

3. The electromagnetic tension adjustment superposition mechanism as described in claim 1, characterized in that: The first tension generating part is a magnetically controlled slip mechanism, including a conductor ring (1) and a magnet ring (2); The second tension generating part is the electromagnetic tension control mechanism, which includes an electromagnetic component (3) and a magnetic disk (4); An air gap exists between the conductor ring (1) and the magnet ring (2); There is an air gap between the electromagnetic component (3) and the magnetic disk (4).

4. The electromagnetic tension adjustment superposition mechanism as described in claim 3, characterized in that: The electromagnetic component (3) includes an iron core (31) and an electromagnetic coil (32) wound on the iron core (31); The electromagnetic coil (32) is connected to an adjustable power supply. By changing the magnitude and / or direction of the current input to the electromagnetic coil (32), the magnetic field strength and polarity generated by the electromagnetic component (3) can be adjusted, thereby controlling the tension applied to the magnetic disk (4).

5. The electromagnetic tension adjustment superposition mechanism as described in claim 3 or 4, characterized in that: The conductor ring (1) and the electromagnetic component (3) are coaxial and rotate together; Both are connected to the main spindle (5).

6. The electromagnetic tension adjustment superposition mechanism as described in claim 3, characterized in that: The magnet ring (2) and the magnetic disk (4) are coaxial and rotate together.

7. The electromagnetic tension adjustment superposition mechanism as described in claim 4, characterized in that: The adjustable power supply is an intelligent power supply controlled by a programmable logic controller (PLC) or microcontroller unit (MCU), which can automatically adjust the current according to a preset program or external sensor signal to achieve automated closed-loop control of tension.

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