CN113972047B

CN113972047B - Multistage eccentric rotation gradually-fitted electromagnet

Info

Publication number: CN113972047B
Application number: CN202111211072.7A
Authority: CN
Inventors: 王秀祥; 吴文; 苑振宇; 高兴礼; 周露; 罗雁; 曹浩然; 陈章恒; 张睿
Original assignee: Wuhu Tianhang Equipment Technology Co ltd
Current assignee: Wuhu Tianhang Equipment Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2024-06-21
Anticipated expiration: 2041-10-18
Also published as: CN113972047A

Abstract

The invention relates to the technical field of electromagnets, in particular to a multistage eccentric rotating gradually attaching electromagnet, which comprises the following components: the shell is eccentrically arranged in multiple stages, and a plurality of eccentric attraction surfaces are arranged in the shell; the iron core is eccentrically arranged in the shell through a bearing in a multistage manner, and a plurality of eccentric joint surfaces corresponding to the number of the eccentric joint surfaces are arranged; the coil is arranged in the shell and surrounds the outside of the iron core, and generates a magnetic field when the coil is electrified; the fan-shaped piece is arranged outside the shell and is coaxially and fixedly connected with the iron core and is used for outputting the rotary displacement of the iron core; and the tension spring is arranged outside the shell and connected with one side end part of the sector piece and used for resetting the iron core when the motor is not electrified. According to the invention, by adopting a mode that the eccentric rotor is close to the eccentric shell, a stronger magnetic field is generated during starting, so that the starting force is increased; the moving distance of the electromagnet is increased by gradually attaching the eccentric rotor to the eccentric shell; in addition, the multistage design of iron core and casing for the iron core atress is even balanced.

Description

Multistage eccentric rotation gradually-fitted electromagnet

Technical Field

The invention relates to the technical field of electromagnets, in particular to a multistage eccentric rotating gradually fitting electromagnet.

Background

Electromagnets are required in aircraft weapons to execute instructions. CN201010109328.9 "an electronic lock in mechano-electronic composite lock", comprising lock shell, electromagnet and rotary lock tongue, wherein the electromagnet is equipped with telescopic movable iron core, the lock shell is equipped with central shaft, the rotary lock tongue is sheathed on the central shaft, and reset spring is equipped between the central shaft and the rotary lock tongue. When the combined lock is used, when the combined lock needs to be opened, the electromagnet is electrified to enable the movable iron core to retract, the external force pushes the rotary lock tongue to rotate, the lower end of the rotary lock tongue pushes the sliding bolt to move downwards, and the combined mechanical and electronic lock can be opened. When locking is needed, the rotary lock tongue is reset under the action of the reset spring, the movable iron core stretches out under the action of the electromagnet and is blocked at the lower end of the sliding bolt, the sliding bolt is prevented from moving downwards, and locking of the electronic lock is achieved.

Although the above-mentioned comparison patent can realize locking and unlocking, in the industry, the requirement for the electromagnet is that the starting force is large, but because the distance between the electromagnet and the electromagnet before the attraction is small, the distance between the electromagnet and the electromagnet after the attraction is short, the magnetic field strength is generated, so that the attraction force of the electromagnet is generally changed from small to large. Another requirement for the electromagnet is to provide sufficient distance of movement, the greater the distance the better. In general, force and distance are a pair of contradictory indices, and when the distance is large, the force becomes small, and when the force is large, the distance becomes small.

Disclosure of Invention

In order to achieve the purposes of generating a stronger magnetic field during starting, increasing starting force and increasing the moving distance of the electromagnet, the invention provides a multistage eccentric rotating gradually-fitted electromagnet.

The technical problems to be solved by the invention are realized by adopting the following technical scheme:

a multi-stage eccentric rotating gradient electromagnet, comprising:

The shell is eccentrically arranged in multiple stages, and a plurality of eccentric attraction surfaces are arranged in the shell;

The iron core is eccentrically arranged in the shell through a bearing in a multistage manner, and a plurality of eccentric joint surfaces corresponding to the number of the eccentric joint surfaces are arranged;

The coil is arranged in the shell and surrounds the outside of the iron core, and generates a magnetic field when the coil is electrified;

the fan-shaped piece is arranged outside the shell and is coaxially and fixedly connected with the iron core and is used for outputting the rotary displacement of the iron core;

and the tension spring is arranged outside the shell and connected with one side end part of the sector piece and used for resetting the iron core when the motor is not electrified.

Preferably, the shell and the iron core are made of magnetic conductive materials.

Preferably, a limit screw for limiting the rotation angle of the iron core is arranged in the shell.

Preferably, the limit screw is made of non-magnetic conductive material.

The beneficial effects of the invention are as follows:

Compared with the prior art, the invention uses the mode that the eccentric rotor is close to the eccentric shell, so that a stronger magnetic field is generated during starting, and the starting force is increased; the moving distance of the electromagnet is increased by gradually attaching the eccentric rotor to the eccentric shell; in addition, the multistage design of iron core and casing for the iron core atress is even balanced.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic view in front cross-section of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the electromagnet of the present invention before lamination;

FIG. 4 is a schematic view of the electromagnet of the present invention after attachment;

FIG. 5 is a schematic view of the three-dimensional state of the electromagnet of the present invention prior to lamination;

fig. 6 is a schematic diagram of a three-dimensional state of the electromagnet of the present invention after lamination.

In the figure: 1. a housing; 2. a coil; 3. a bearing; 4. an iron core; 5. a screw; 6. a tension spring; 7. a sector; 8. and (5) limiting screws.

Detailed Description

In order that the manner in which the invention is attained, as well as the features and advantages thereof, will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.

As shown in fig. 1 to 6, an electromagnet with multistage eccentric rotation gradually attaches to each other is composed of a casing 1, a coil 2, a bearing 3, an iron core 4, a screw 5, a tension spring 6, a sector 7 and a limit screw 8.

The shell 1 is used for protecting the internal parts, meanwhile, the shell 1 is made of magnetic conductive materials, and a closed magnetic circuit is formed by the shell and the iron core 4 which is also made of the magnetic conductive materials. Four eccentric attraction surfaces are arranged in the shell 1. The coil 2 is wound around the core 4, and a magnetic field is formed in the core 4. The bearing 3 allows the core 4 to reduce friction when rotating. The iron core 4 is eccentrically arranged in the shell 1 in multiple stages and is provided with four eccentric joint surfaces corresponding to the four eccentric joint surfaces in number. The screw 5 is used to connect the various parts. The tension spring 6 is arranged outside the housing 1 and is connected to the segment 7 for resetting the position of the iron core 4 when not energized. The sector 7 is fixedly and coaxially connected with the iron core 4, and the sector 7 is positioned outside the shell 1 and is used for outputting rotary displacement. The limit screw 8 is arranged in the shell 1 and is made of non-magnetic material and used for limiting the rotation angle of the iron core 4.

The application process of the invention comprises the following steps:

When the lock is not electrified, the iron core 4 rotates anticlockwise under the acting force of the tension spring 6 until the iron core 4 is attached to the limit screw 8, and at the moment, the iron core 4 is separated from the shell 1. When the power is on and unlocking, a magnetic field is generated in the coil 2, so that the iron core 4 generates a rotating force, the pulling force of the tension spring 6 is overcome, the iron core is attached to the shell 1, and in the process of rotating and approaching the iron core 4, the sector piece 7 performs corresponding output rotary displacement.

By adopting a mode that the eccentric rotor is close to the eccentric shell, a stronger magnetic field is generated during starting, so that the starting force is increased; the moving distance of the electromagnet is increased by gradually attaching the eccentric rotor to the eccentric shell; in addition, the multistage design of iron core and casing for the iron core atress is even balanced.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Multistage eccentric rotation gradually laminating electro-magnet, its characterized in that: comprising the following steps:

a shell (1) is eccentrically arranged in multiple stages, and a plurality of eccentric attraction surfaces are arranged in the shell;

the iron cores (4) are eccentrically arranged in the shell (1) through the bearings (3) in multiple stages, and are provided with a plurality of eccentric joint surfaces corresponding to the number of the eccentric joint surfaces;

A coil (2) which is arranged in the shell (1) and surrounds the outside of the iron core (4) and generates a magnetic field when energized;

The sector piece (7) is arranged outside the shell (1) and is fixedly connected with the iron core (4) coaxially and is used for outputting the rotary displacement of the iron core (4);

The tension spring (6) is arranged outside the shell (1) and connected with one side end part of the sector piece (7) and is used for resetting the iron core (4) when the power is not on;

And a limit screw (8) for limiting the rotation angle of the iron core (4) is arranged in the shell (1).

2. The multi-stage eccentric rotating gradient electromagnet as set forth in claim 1, wherein: the shell (1) and the iron core (4) are made of magnetic conduction materials.

3. The multi-stage eccentric rotating gradient electromagnet as set forth in claim 1, wherein: the limit screw (8) is made of non-magnetic conduction materials.