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CN-224232432-U - Adjust rotation type electro-magnet structure

CN224232432UCN 224232432 UCN224232432 UCN 224232432UCN-224232432-U

Abstract

The utility model relates to an adjustable rotary electromagnet structure, which comprises a shell, wherein a coil framework is arranged in the shell, a coil is wound outside the coil framework, an armature is arranged in the lower part of the coil framework, a rotating shaft is arranged on the armature, a fixed ring is arranged at the top of the shell, a through hole is formed in the middle of the upper end of the fixed ring, a plurality of clamping bulges are uniformly arranged at the upper end of the fixed ring around the through hole, the clamping bulges are in circular arrangement, one end of the rotating shaft sequentially penetrates through the shell and the through hole and is sleeved with a scroll spring, a clamping hook is arranged on the outer side of the scroll spring, and one clamping bulge is selected for buckling. The utility model realizes the simple structure, reliable and durable adjusting mechanism by combining the spiral spring and the fixed ring, realizes wide-range torque adjustment in a compact space, reduces energy consumption and improves energy utilization efficiency.

Inventors

  • FENG DI

Assignees

  • 宁波兴茂电子科技有限公司

Dates

Publication Date
20260512
Application Date
20250516

Claims (7)

  1. 1. An adjustable rotary electromagnet structure comprises a housing (1) and is characterized in that a coil framework (7) is arranged in the housing (1), a coil (2) is wound outside the coil framework (7), an armature (10) is arranged in the lower portion of the coil framework (7), a rotating shaft (5) is arranged on the armature (10), a fixed ring (12) is arranged at the top of the housing (1), a through hole (16) is formed in the middle of the upper end of the fixed ring (12), a plurality of clamping bulges (14) are uniformly arranged at the upper end of the fixed ring (12) around the through hole (16), the plurality of clamping bulges (14) are arranged in a circular ring shape, one end of the rotating shaft (5) sequentially penetrates through the housing (1) and the through hole (16) and is sleeved with a scroll spring (6), a clamping hook (15) is arranged on the outer side of the scroll spring (6), and one clamping bulge (14) is selected by the clamping hook (15).
  2. 2. The rotary electromagnet adjusting structure according to claim 1, wherein the upper port of the casing (1) is provided with an iron core (3), the lower part of the iron core (3) is inserted into the coil framework (7), the iron core (3) is provided with at least two fasteners (4), the upper end of the fixed ring (12) is uniformly provided with a plurality of adjusting hole sites (18) around the through holes (16), the number of the adjusting hole sites (18) is at least twice or more than that of the fasteners (4), and the fixed ring (12) and the iron core (3) are connected with the fasteners (4) in a matched mode through the adjusting hole sites (18).
  3. 3. The structure of the rotary electromagnet according to claim 1, wherein the bottom of the shell (1) is provided with a V-shaped guide groove (17) matched with the steel ball (11).
  4. 4. The rotary electromagnet structure for adjusting the position of the armature iron (10) is characterized in that a rotary disc (9) is arranged at the bottom of the armature iron (10), a plurality of steel ball grooves (13) are uniformly formed in the rotary disc (9), steel balls (11) are arranged in each steel ball groove (13), and lubricating grease is coated on the inner wall of each steel ball groove (13).
  5. 5. The structure of an adjustable rotary electromagnet according to claim 4, wherein the lower part of the housing (1) is sleeved with a dust cover (8), and the dust cover (8) covers the rotary disk (9) inside.
  6. 6. The rotary electromagnet adjusting structure according to claim 4, wherein the steel balls (11) are made of SUJ 2-SUJ 3, the diameter of the steel balls (11) is 2-3mm, and the number of the steel balls (11) is 3.
  7. 7. The structure of claim 1, wherein the through hole (16) is a circular through hole, and the plurality of engaging protrusions (14) are uniformly disposed around the inner wall of the circular through hole.

Description

Adjust rotation type electro-magnet structure Technical Field The utility model relates to the technical field of electromagnets, in particular to an adjusting rotary electromagnet structure. Background An electromagnet is a device that generates electromagnetic electricity when energized. An electrically conductive winding is wound around the core, the power of which is matched, and the coil to which current is applied is magnetic like a magnet, also called an electromagnet. The prior art has disclosed a rotary electromagnet with a patent number of CN202023082156.9 and a patent name, and is mainly characterized in that a motion conversion mechanism is adopted, and linear displacement and rotation angle synchronous output is realized by utilizing steel balls through three-steel ball groove inclined plane design. There is a problem in that dynamic performance is limited and the return spring response is delayed. The special rotary electromagnet for the unmanned aerial vehicle external hanging system has the main characteristics that a bearing support system is adopted, a double deep groove ball bearing is utilized to enable a rotating angle of a magnetic rotor to reach 70 degrees, a limiting structure is utilized, a left limiting piece and a right limiting piece are utilized to accurately control the angle, low-temperature adaptability is achieved, and a sealing shell design is utilized, so that the unmanned aerial vehicle external hanging system can resist low temperature of-60 ℃. The problems are that the precision-torque contradiction cannot be satisfied, the torque precision is < + -5%, the torque output is 1 N.m, and the environment adaptability is that the mechanical seal fails in a wide temperature range (-60 to +125 ℃), and the reliability of electronic components is suddenly reduced. Comprehensive prior art, rotary electromagnet torque adjustment mainly has the following commonality problems: (1) The contradiction between the regulation precision and the response speed is that the mechanical regulation mode has low precision but quick response, and the electric regulation mode has high precision but slow response; (2) The contradiction between the structural complexity and the reliability is that the complex adjusting mechanism improves the performance but reduces the reliability; (3) Miniaturization is contradictory to performance in that compact designs tend to sacrifice tuning range or accuracy and high performance designs typically require more space. Disclosure of Invention The utility model aims to solve the technical problem of providing an adjusting rotary electromagnet structure, which is characterized in that an adjusting mechanism with simple structure, reliability and durability is realized by combining a scroll spring and a fixed ring, wide-range torque adjustment is realized in a compact space, the energy consumption is reduced, and the energy utilization efficiency is improved. The technical scheme includes that the adjustable rotary electromagnet structure comprises a shell, a coil framework is arranged in the shell, a coil is wound outside the coil framework, an armature is arranged in the lower portion of the coil framework, a rotating shaft is arranged on the armature, a fixed ring is arranged at the top of the shell, a through hole is formed in the middle of the upper end of the fixed ring, a plurality of clamping protrusions are uniformly arranged at the upper end of the fixed ring around the through hole, the clamping protrusions are arranged in a circular ring shape, one end of the rotating shaft sequentially penetrates through the shell and the through hole and is sleeved with a scroll spring, a clamping hook is arranged on the outer side of the scroll spring, and one clamping protrusion is selected for buckling. In addition to the technical scheme of the utility model, an iron core is arranged at the upper port of the shell, the lower part of the iron core is inserted into the coil framework, at least two fasteners are arranged on the iron core, a plurality of adjusting hole sites are uniformly arranged at the upper end of the fixing ring around the through holes, the number of the adjusting hole sites is at least twice or more than that of the fasteners, and the fixing ring and the iron core are connected with the fasteners in a matched manner through the adjusting hole sites. As a supplement to the technical scheme of the utility model, the bottom of the shell is provided with a V-shaped guide groove matched with the steel ball. As a supplement to the technical scheme of the utility model, the bottom of the armature is provided with a rotary disk, a plurality of steel ball grooves are uniformly formed in the rotary disk, a steel ball is arranged in each steel ball groove, and lubricating grease is coated on the inner wall of each steel ball groove. As a supplement to the technical proposal of the utility model, the lower part of the shell is sleeved with a dust cover which