一种电磁铁用双支撑环结构的衔铁

By setting a DLC-coated convex ring structure on the electromagnet armature, the problems of assembly difficulty and high friction coefficient of the electromagnet armature friction pair are solved, achieving low friction, self-lubrication and wear resistance, and improving the electromagnet's attraction performance and lifespan.

CN224519616UActive Publication Date: 2026-07-17ANYANG KAIDI MAGNETIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANYANG KAIDI MAGNETIC TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing friction pair structure of electromagnet armature has problems such as difficult assembly, high friction coefficient, high cost, and performance degradation, and is especially unsuitable for switching electromagnets.

Method used

The armature adopts a double support ring structure. The convex rings are coated with DLC, with a thickness of 0.005-0.01mm and a width of 1.5-3mm. The convex rings are symmetrically arranged, which has good bonding force, wear resistance, corrosion resistance and low coefficient of friction.

Benefits of technology

This achieves a low coefficient of friction and self-lubrication, avoids jamming problems, improves the attraction performance and service life of the electromagnet, and reduces production costs.

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Abstract

一种电磁铁用双支撑环结构的衔铁，包括圆柱形的衔铁主体，在衔铁主体周面上设置有多道凸环，所述的凸环为DLC涂层，凸环的厚度为0.005‑0.01mm，凸环的宽度为1.5‑3mm。所述的凸环为两道，两道凸环关于衔铁主体长度方向的中间对称。所述凸环的宽度为2mm。DLC涂层硬度大于等于HV2500以上，耐高温300℃，摩擦系数小于等于0.15，具有极低的表面摩擦系数，可以在产品表面形成自润滑摩擦；与基体结合力好，耐摩擦，耐腐蚀；可以避免长期使用后带来性能降低的问题，且DLC涂层工艺成熟，其产品吸力滞环性能可以达到5%‑‑8%左右；该结构不存在卡滞的问题。
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Claims

1. A plunger for a double support ring structure of an electromagnet, comprising a cylindrical plunger main body, characterized by: Multiple raised rings are provided on the circumference of the armature body. The raised rings are DLC coated with a thickness of 0.005-0.01mm and a width of 1.5-3mm.

2. The armature of claim 1, wherein: The convex rings are two in number, and the two convex rings are symmetrical about the middle of the length direction of the armature body.

3. The armature of claim 1, wherein: the first and second support rings are made of a magnetic material; the first and second support rings are electrically isolated from each other; and the first and second support rings are electrically isolated from the armature core. The width of the convex ring is 2mm.