Micro-rotation-angle high-frequency electro-mechanical converter with zero position adjusting function

Abstract

The utility model discloses a micro-corner high-frequency electro-mechanical converter with a zero position adjusting function, which comprises a base, two layered magnetizers, two permanent magnets, a coil, a zero position adjusting device, a torsion shaft, a layered armature and a pressing plate, the pressing plate is arranged at the upper ends of the magnetizers and connected with the base through fasteners, the permanent magnets are arranged on the two sides of the magnetizers, and the coil is arranged on the coil. The magnetizer is used for providing a static magnetic field, the lower end of the torsion shaft is connected with the base, the armature is installed on the torsion shaft in a linkage mode, the coil is wound on the armature, and four gaps are formed between the magnetizer and the armature; the zero position adjusting device comprises a bottom plate, a center sleeve and four adjusting supporting columns, the center sleeve is arranged on the periphery of the torsion shaft in a sleeving mode and can slide in the axial direction of the torsion shaft, and the ends of the four adjusting supporting columns are each provided with a conical adjusting part used for adjusting the position of the armature. The zero-position adjusting device is introduced, accurate position calibration of the armature in the assembling process is achieved, it is ensured that the armature is in an accurate zero position in the initial state, and therefore the control accuracy of a system is improved.

Description

Technical Field

[0001] The utility model relates to a micro-angle high-frequency electro-mechanical converter with a zero-position adjustment function. Background Art

[0002] As a core component that converts electrical energy into mechanical energy, electromechanical converters (EMCs) play a vital role in modern precision equipment and automation systems. Their performance directly impacts a device's response speed, control accuracy, and energy conversion efficiency, and they are widely used in various high-frequency, high-precision motion control scenarios. However, existing EMCs still face technical bottlenecks in their design and application, making it difficult to meet ever-increasing performance requirements.

[0003] First, existing electro-mechanical converters generally lack an effective zero-position adjustment function. During assembly, manufacturing errors and assembly deviations often cause slight displacement between the armature and the magnet, preventing the armature from being in the zero position in its initial state. This deviation significantly affects the converter's performance, especially in high-frequency, high-precision applications. Inaccurate positioning can lead to unstable motion and reduced control accuracy, ultimately affecting the overall performance of the system. Therefore, achieving precise zero-position adjustment of the armature during assembly is a major challenge in improving system accuracy.

[0004] Secondly, the magnetizer of traditional electromechanical converters typically utilizes a monolithic iron core structure. During high-frequency electromagnetic conversion, this monolithic iron core generates significant eddy currents, leading to energy loss. These eddy currents create circulating currents within the magnetizer, dissipating some of the electromagnetic energy and generating heat, reducing the device's energy conversion efficiency. Furthermore, this monolithic iron core structure exhibits hysteresis, resulting in a delayed magnetization process and further exacerbating energy losses. These issues are particularly pronounced at high frequencies, severely limiting system efficiency and stability. Utility Model Content

[0005] The purpose of the utility model is to provide a micro-angle high-frequency electro-mechanical converter with a zero-position adjustment function. The utility model introduces a zero-position adjustment device to achieve accurate position calibration of the armature during the assembly process, ensuring that it is in an accurate zero position in the initial state, thereby improving the control accuracy of the system.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a micro-rotational angle, high-frequency electro-mechanical converter with a zero-position adjustment function, comprising a base, two layered magnetizers, two permanent magnets, a coil, a zero-position adjustment device, a torsion shaft, a layered armature, and a pressure plate, wherein the pressure plate is disposed at the upper end of the magnetizers and connected to the base via fasteners, pressing the magnetizers against the base, the permanent magnets being disposed on both sides of the magnetizers for providing a static magnetic field, the lower end of the torsion shaft being connected to the base, a first through-hole being provided in the middle of the pressure plate for allowing the torsion shaft to pass through, the armature being mounted on the torsion shaft in a linkage manner, the coil being wound around the armature, and four gaps being formed between the magnetizers and the armature;

[0007] The zero position adjustment device includes a base plate, a central sleeve arranged on the base plate, and four adjustment pillars arranged on the base plate. The central sleeve is sleeved on the outer periphery of the torsion shaft and can slide axially along the torsion shaft. The ends of the four adjustment pillars are each provided with a conical adjustment portion for inserting into the corresponding gap to adjust the armature position.

[0008] The utility model is further configured such that the magnetizer and the armature are both made of laminated silicon steel sheets.

[0009] The present invention is further configured as follows: a second through hole is provided on the base, the torsion shaft passes through the second through hole, and the torsion shaft is provided with a limiting flange extending outward, the limiting flange is tightly pressed against the upper end of the base, and the torsion shaft is also provided with a threaded section, a locking nut is threadedly connected to the threaded section, and the locking nut is tightly pressed against the lower end of the base.

[0010] The utility model is further configured such that the armature is provided with an axial hole for the torsion shaft to pass through, and the side of the armature is provided with at least one locating key, and the inner wall of the axial hole is provided with keyways whose number is equal to the locating keys and fits with the locating keys.

[0011] The present invention is further configured such that the base is provided with a passage for allowing an adjustment pillar of the zero position adjustment device to pass through.

[0012] The present invention is further configured such that two positioning grooves are provided on the base, and the bottom ends of the permanent magnets are embedded in the positioning grooves.

[0013] The present invention is further configured such that the pressing plate is an elongated strip structure, and both ends of the pressing plate are respectively provided with an elongated strip hole for a fastener to pass through.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The converter design incorporates a zero-position adjustment function. Through a precise adjustment mechanism, uniform gaps are maintained during assembly, ensuring that the armature is in the precise zero position before use. This feature allows the device to quickly return to its ideal state during actual use, reducing performance fluctuations caused by assembly errors.

[0016] 2. Both the magnetizer and armature utilize silicon steel sheets with a layered magnetic structure, effectively reducing eddy current and hysteresis losses, thereby improving the converter's efficiency and response speed. This design optimizes the magnetic flux path, ensures uniform magnetic field distribution, and enhances the precision of micro-angle adjustment. Simultaneously, the layered silicon steel sheets enhance the converter's mechanical strength and durability, adapting to high-frequency operation and extending its service life. Furthermore, the layered magnetic structure of the silicon steel sheets exhibits excellent electromagnetic properties and thermal stability, reducing performance degradation caused by temperature changes and current fluctuations, and reducing the converter's overall size, making it suitable for space-constrained micro-devices and precision instruments.

[0017] 3. The zero-position adjustment device features a removable design, allowing it to be easily inserted onto the torsion shaft for adjustment during assembly, ensuring precise initial alignment. Once adjusted, simply tighten the fasteners (screws and nuts) to ensure the armature remains in a neutral, balanced state when the control coil is de-energized, and then remove the zero-position adjustment device. This removable design allows for quick installation and removal, facilitating ease of use and simplifying the assembly process. This not only improves work efficiency but also prevents interference with the overall system, ensuring system stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the entire utility model;

[0019] Figure 2 This is the main view of the entire utility model;

[0020] Figure 3 for Figure 2 AA section view;

[0021] Figure 4 This is a schematic structural diagram of the zero position adjustment device of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the torsion shaft of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the armature of the utility model;

[0024] Figure 7 It is a structural diagram of the base of the utility model.

[0025] In the figure: 1. base; 2. magnetic conductor; 3. permanent magnet; 4. coil; 5. zero-position adjustment device; 6. torsion shaft; 7. armature; 8. pressure plate; 9. fastener; 10. first through hole; 11. gap; 12. bottom plate; 13. center sleeve; 14. adjustment support; 15. conical adjustment part; 16. second through hole; 17. limiting flange; 18. threaded section; 19. locking nut; 20. shaft hole; 21. positioning key; 22. keyway; 23. mouth; 24. positioning groove; 25. long strip hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example: As shown in the attached Figures 1 to 7 The micro-angle high-frequency electro-mechanical converter with zero-position adjustment function shown in the figure includes a base 1, two layered magnetizers 2, two permanent magnets 3, a coil 4, a zero-position adjustment device 5, a torsion shaft 6, a layered armature 7 and a pressure plate 8. The pressure plate 8 is arranged at the upper end of the magnetizer 2 and is connected to the base 1 through a fastener 9 to press the magnetizer 2 against the base 1. The permanent magnet 3 is arranged on both sides of the magnetizer 2 to provide a static magnetic field. The lower end of the torsion shaft 6 is connected to the base 1. The middle of the pressure plate 8 is also provided with a first through hole 10 for the torsion shaft 6 to pass through. The armature 7 is installed on the torsion shaft 6 in a linkage manner. The coil 4 is wound on the armature 7. The coil 4 uses high-temperature resistant enameled wire, has a fast response speed, and excellent heat dissipation performance. Four gaps 11 are formed between the magnetizer 2 and the armature 7. The permanent magnet 3 has four first inclined surfaces, and the two magnetizers 2 have four second inclined surfaces. The above-mentioned gaps 11 are formed between the first inclined surfaces and the corresponding second inclined surfaces. The high-rigidity torsion shaft 6 provides elastic restoring force during micro-angular motion of the armature 7, ensuring its return to equilibrium without external forces and maintaining stable mechanical support. The permanent magnet 3 generates a static polarized magnetic field. When current is applied to the control coil 4, the generated control magnetic field interacts with the static magnetic field of the permanent magnet 3, altering the magnetic field distribution in the gap 11. This drives the armature 7 to overcome the elastic force of the torsion shaft 6 and swing slightly left or right.

[0028] The zero-position adjustment device 5 is used to improve assembly accuracy during assembly. It comprises a base plate 12, a central sleeve 13 mounted on the base plate 12, and four adjustment posts 14 mounted on the base plate 12. The central sleeve 13 is mounted around the outer periphery of the torsion shaft 6 and can slide axially along the torsion shaft 6. Each of the four adjustment posts 14 is provided with a tapered adjustment portion 15 at its end, which is inserted into a corresponding gap 11 to adjust the position of the armature 7. During assembly, if the gap 11 between the armature 7 and the magnet 2 becomes offset or unequal, the zero-position adjustment device 5 is inserted into the torsion shaft 6 and moved up and down along the torsion shaft 6. As the upper zero-position adjustment device 5 gradually adjusts the position of the armature 7, it effectively corrects the gap 11 between the armature 7 and the magnet 2. When the four gaps 11 between the armature 7 and the two magnets 2 are equal, the zero-position adjustment has reached optimal state. At this point, two diagonally opposite sets of fasteners 9 (screws and nuts) need to be secured in place to ensure the balance and stability of the entire assembly. The screws and nuts secure the relative position of the armature 7 and the magnet 2 to prevent any deviation. After confirming that all securing is complete, the zero-position adjustment device 5 is removed. This step ensures the assembly accuracy of the entire system, especially during fine-angle adjustments, ensuring that the armature 7 is in the optimal initial position.

[0029] Among them, the magnetizer 2 and armature 7 are both made of laminated silicon steel sheets, which effectively reduces eddy current loss and hysteresis loss, and improves the efficiency and response speed of the converter. This design optimizes the magnetic flux path, ensures uniform magnetic field distribution, and improves the accuracy of micro-angle adjustment. At the same time, the layered silicon steel sheets enhance the mechanical strength and durability of the converter, adapt to high-frequency operation, and extend its service life. In addition, the silicon steel sheets with a layered magnetic conductive structure have excellent electromagnetic properties and thermal stability, reducing performance degradation caused by temperature changes and current fluctuations, and reducing the overall volume of the converter, making it suitable for space-constrained micro-devices and precision instruments.

[0030] As attached Figure 3 and attached Figure 5 As shown, the base 1 is provided with a second through-hole 16, through which the torsion shaft 6 extends. An outwardly extending stop flange 17 is provided on the torsion shaft 6, which abuts against the upper end of the base 1. The torsion shaft 6 also has a threaded section 18, threadedly connected to a locking nut 19, which abuts against the lower end of the base 1. This structure is used to secure the torsion shaft 6 to the base 1 after zero adjustment is completed. The connection is simple and reliable, and is very convenient for assembly and disassembly.

[0031] As attached Figure 5 and attached Figure 6As shown, the armature 7 is provided with an axial hole 20 for the torsion shaft 6 to pass through, and at least one positioning key 21 is provided on the side of the armature 7. The inner wall of the axial hole 20 is provided with a number of key slots 22 that are equal to and fit with the positioning keys 21. In this embodiment, there are two positioning keys 21 and two key slots 22. The key connection structure ensures a secure connection between the two, achieving stable synchronous motion.

[0032] As attached Figure 7 As shown, the base 1 is further provided with a through opening 23 for the adjustment support 14 of the zero position adjustment device 5 to pass through, thereby ensuring that the lower zero position adjustment device 5 can be used normally.

[0033] As attached Figure 7 As shown, the base 1 is provided with two positioning grooves 24 , and the bottom end of the permanent magnet 3 is embedded in the positioning groove 24 , which can realize the positioning of the permanent magnet 3 , and the installation structure is stable and reliable.

[0034] As attached Figure 1 As shown, the pressing plate 8 is a long strip structure, and each end of the pressing plate 8 is provided with a long strip hole 25 for the fastener 9 to pass through, so that the position of the pressing plate 8 can be fine-tuned during the zeroing operation.

Claims

1. A micro-angle high-frequency electro-mechanical converter with a zero-position adjustment function, characterized in that: The invention comprises a base (1), two layered magnets (2), two permanent magnets (3), a coil (4), a zero-position adjustment device (5), a torsion shaft (6), a layered armature (7) and a pressure plate (8), wherein the pressure plate (8) is arranged at the upper end of the magnet (2) and is connected to the base (1) through a fastener (9), pressing the magnet (2) against the base (1), the permanent magnets (3) are arranged on both sides of the magnet (2) for providing a static magnetic field, the lower end of the torsion shaft (6) is connected to the base (1), the middle part of the pressure plate (8) is further provided with a first through hole (10) for the torsion shaft (6) to pass through, the armature (7) is mounted on the torsion shaft (6) in a linkage manner, the coil (4) is wound on the armature (7), and four gaps (11) are formed between the magnet (2) and the armature (7); The zero position adjustment device (5) comprises a base plate (12), a central sleeve (13) arranged on the base plate (12), and four adjustment pillars (14) arranged on the base plate (12). The central sleeve (13) is sleeved on the outer periphery of the torsion shaft (6) and can slide axially along the torsion shaft (6). The ends of the four adjustment pillars (14) are each provided with a tapered adjustment portion (15) for inserting into a corresponding gap (11) for adjusting the position of the armature (7).

2. The micro-angle high-frequency electro-mechanical converter with zero-position adjustment function according to claim 1, characterized in that: The magnetic conductor (2) and the armature (7) are both made of laminated silicon steel sheets.

3. The micro-angle high-frequency electro-mechanical converter with zero-position adjustment function according to claim 1, characterized in that: The base (1) is provided with a second through hole (16), the torsion shaft (6) passes through the second through hole (16), and the torsion shaft (6) is provided with a limiting flange (17) extending outward, the limiting flange (17) is pressed against the upper end of the base (1), and the torsion shaft (6) is also provided with a threaded section (18), and a locking nut (19) is threadedly connected to the threaded section (18), and the locking nut (19) is pressed against the lower end of the base (1).

4. The micro-angle high-frequency electro-mechanical converter with zero-position adjustment function according to claim 1, characterized in that: The armature (7) is provided with an axial hole (20) for the torsion shaft (6) to pass through, and at least one positioning key (21) is provided on the side of the armature (7), and the inner wall of the axial hole (20) is provided with key slots (22) whose number is equal to the positioning keys (21) and fits with the positioning keys (21).

5. The micro-angle high-frequency electro-mechanical converter with zero-position adjustment function according to claim 1, characterized in that: The base (1) is also provided with a passage (23) for the adjustment pillar (14) of the zero position adjustment device (5) to pass through.

6. The micro-angle high-frequency electro-mechanical converter with zero-position adjustment function according to claim 1, characterized in that: Two positioning grooves (24) are provided on the base (1), and the bottom ends of the permanent magnets (3) are embedded in the positioning grooves (24).

7. The micro-angle high-frequency electro-mechanical converter with zero-position adjustment function according to claim 1, characterized in that: The pressing plate (8) is a long strip structure, and a long strip hole (25) for a fastener (9) to pass through is provided at each end of the pressing plate (8).

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