Rotating magnet steel float
Patent Information
- Application Number
- CN202522564900.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-12-03
AI Technical Summary
[0004]上述现有技术中磁浮子存在的主要问题是：一、多块扇形磁钢围成圆环形磁钢构件，扇形磁钢为异形磁钢，在加工及充磁方面造价昂贵，并且磁钢数量较多，生产成本相对较高；二、磁钢组件包括立杆，上、下圆盘以及由多块扇形磁钢围成的圆环形磁钢构件，构成磁钢组件的零部件相对较多，整体重量相对较大，根据浮力原理F浮=mg=ρ液gV排，简化为m=ρ液V排，因此在同ρ液工况下现有技术中浮子筒的体积要相对较大一些，浮子筒的用料相对较多，增加了生产成本
[0009]本实用新型具有以下有益的技术效果：一、本实用新型中的磁钢组件主要包括安装圆盘和转动座，转动座的两侧仅有两块圆柱形磁刚，构成磁钢组件的零部件数量相对较少，整体重量相对较轻，根据浮力原理，在同ρ液工况下本实用新型中浮子筒的体积也可以相对小一些，本实用新型整体的生产成本相对较低；二、本实用新型中，所述磁钢组件中采用的是两块圆柱形磁钢，相对现有技术中多块扇形磁钢围成的圆环形磁钢构件相比，磁钢数量少，并且圆柱形磁钢为规则的圆柱体，在加工及充磁方面成本低廉，因此本实用新型中的磁钢组件制备成本更低；三、本实用新型中的安装圆盘以过盈配合方式压入浮子筒内，同时起到对浮子筒的补强作用，使浮子筒在承压方面有更好的效果；四、本实用新型中所述定位杆上部柱形转杆的顶端形成有球形限位部后，可以防止液位下降过程中本实用新型中的转动座脱离定位杆，可以提高本实用新型的稳定性和可靠性。
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Figure CN224802504U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a magnetic float component in a magnetic float level gauge, specifically to a rotating magnetic steel float. Background Technology
[0002] The magnetic float level gauge mainly consists of a magnetic float and a magnetic flip display panel set on the outside of the magnetic float. Its working principle is based on Archimedes' principle of buoyancy and magnetic coupling.
[0003] In the prior art, the structure of the magnetic float in a magnetic float level gauge mainly includes a float cylinder, with a top end cap connected to the top and a bottom end cap connected to the bottom. A magnetic steel assembly is installed inside the float cylinder. The magnetic steel assembly includes a vertical rod 100, with a clamping plate consisting of upper and lower discs 101 and 102 fixed to the bottom end of the rod. A circular annular magnetic steel component 103 is clamped within the clamping plate. The circular annular magnetic steel component is formed by multiple fan-shaped magnets 103′. The top end of the vertical rod is fixed to the top end cap. (See also...) Figure 1 , Figure 2 , Figure 1 This is a schematic diagram of the structure of a magnetic levitation device in the existing technology. Figure 2 yes Figure 1 A schematic diagram of the arrangement of the central magnets, showing multiple fan-shaped magnets forming the aforementioned annular magnet component.
[0004] The main problems with the existing magnetic float technology are as follows: First, multiple sector-shaped magnets are used to form a circular magnetic steel component. These sector-shaped magnets are irregularly shaped, which are expensive to manufacture and magnetize. In addition, the number of magnets is relatively large, resulting in relatively high production costs. Second, the magnetic steel component includes a support rod, upper and lower discs, and a circular magnetic steel component formed by multiple sector-shaped magnets. The components of the magnetic steel component are relatively numerous, and the overall weight is relatively large. According to the buoyancy principle F_buoyancy = mg = ρ_liquid g V_displaced, which can be simplified to m = ρ_liquid V_displaced, the volume of the float cylinder in the existing technology is relatively large under the same ρ_liquid working conditions. The float cylinder requires more material, which increases the production cost. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a rotating magnetic steel float with relatively low production cost.
[0006] To solve the above-mentioned technical problems, this utility model provides a rotating magnetic float with a float cylinder, a top end cap connected to the top of the float cylinder, a bottom end cap connected to the bottom of the float cylinder, and a magnetic steel assembly disposed inside the float cylinder. The magnetic steel assembly is characterized in that: the magnetic steel assembly includes a mounting disc pressed into the upper middle part of the float cylinder by an interference fit; a positioning rod is vertically fixed at the center of the mounting disc; a rotating seat is rotatably mounted on the positioning rod; a cylindrical magnet is mounted on the rotating seat; a gap exists between the outer end of the cylindrical magnet and the inner wall of the float cylinder; and the axis of the mounting disc and the axis of the float cylinder are located on the same straight line.
[0007] Furthermore, the rotating seat is made entirely of magnetic material. The rotating seat includes a horizontal cylindrical tube with cylindrical seats at both ends that have increased diameters. There are two cylindrical magnets, which are respectively attracted into the cylindrical seats at both ends of the cylindrical tube. Correspondingly, the positioning rod has a cylindrical positioning base with a larger lower diameter and a cylindrical rotating rod with a smaller upper diameter. A rotating hole is provided in the middle of the cylindrical tube. The cylindrical tube is rotatably fitted onto the cylindrical rotating rod on the upper part of the positioning rod through the rotating hole in the middle. The diameter of the rotating hole is smaller than the diameter of the cylindrical positioning base.
[0008] As an improvement of this utility model, a spherical limiting part is formed at the top of the upper cylindrical rotating rod of the positioning rod, and the diameter of the spherical limiting part is larger than the diameter of the rotating hole.
[0009] This utility model has the following beneficial technical effects: 1. The magnet assembly in this utility model mainly includes a mounting disc and a rotating base. The rotating base has only two cylindrical magnets on both sides. The number of components constituting the magnet assembly is relatively small, and the overall weight is relatively light. According to the principle of buoyancy, under the same liquid conditions, the volume of the float cylinder in this utility model can also be relatively small, resulting in a relatively low overall production cost. 2. In this utility model, the magnet assembly uses two cylindrical magnets, which is significantly less than the circular magnet components formed by multiple fan-shaped magnets in the prior art. Compared to other methods, the number of magnets is less, and the cylindrical magnets are regular cylinders, resulting in lower processing and magnetization costs. Therefore, the manufacturing cost of the magnet assembly in this invention is lower. Third, the mounting disc in this invention is pressed into the float cylinder with an interference fit, simultaneously reinforcing the float cylinder and improving its pressure-bearing capacity. Fourth, the spherical limiting part formed at the top of the upper cylindrical rotating rod of the positioning rod in this invention prevents the rotating seat from detaching from the positioning rod during liquid level descent, thus improving the stability and reliability of this invention. Attached Figure Description
[0010] The present invention will now be described in further detail with reference to the accompanying drawings.
[0011] Figure 1 This is a schematic diagram of the structure of a magnetic levitation device in the existing technology.
[0012] Figure 2 yes Figure 1 A schematic diagram of the arrangement of the medium magnets.
[0013] Figure 3 This is a schematic diagram of the structure of a rotating magnetic steel float according to this utility model. Detailed Implementation
[0014] See Figure 3 This utility model discloses a rotating magnetic float with a float cylinder 1, a top end cap 2 connected to the top of the float cylinder, a bottom end cap 3 connected to the bottom of the float cylinder, and a magnetic steel assembly disposed inside the float cylinder. The magnetic steel assembly is characterized in that: the magnetic steel assembly includes a mounting disc 10 pressed into the upper middle part of the float cylinder by an interference fit, a positioning rod 11 vertically fixed at the center of the mounting disc, a rotating seat 12 rotatably mounted on the positioning rod, a cylindrical magnet 13 mounted on the rotating seat, a gap 14 between the outer end of the cylindrical magnet and the inner wall of the float cylinder, and the axis of the mounting disc and the axis of the float cylinder being on the same straight line. The rotating seat 12 is made entirely of magnetic material. It includes a horizontal cylindrical tube 121 with cylindrical seats 122 at both ends, each with a larger diameter. Two cylindrical magnets 13 are attached to the cylindrical seats at both ends of the cylindrical tube. Correspondingly, the positioning rod 11 has a lower cylindrical positioning base 111 with a larger diameter and an upper cylindrical rotating rod 112 with a smaller diameter. A rotating hole 123 is provided in the middle of the cylindrical tube 121, allowing the cylindrical tube to rotatably mount onto the upper cylindrical rotating rod of the positioning rod. The diameter of the rotating hole 123 is smaller than the diameter of the cylindrical positioning base 111. A spherical limiting part 113 is formed at the top of the upper cylindrical rotating rod 112 of the positioning rod 11, and the diameter of the spherical limiting part is larger than the diameter of the rotating hole 123.
[0015] After a magnetic flip display is installed on the outside of the rotating magnetic steel float of this utility model, it can be assembled into a magnetic float level gauge. The magnetic float may rotate during the rise or fall of the liquid level. The rotating seat can rotate automatically through magnetic coupling. The cylindrical magnetic steel finds the rotor of the magnetic flip display on the outside of the magnetic float and drives it to flip, so as to realize the liquid level display.
[0016] Compared to the former, the latter has a significant advantage in terms of both the amount of magnets used and the cost.
[0017] It is understood that the above specific description of the present utility model is only used to illustrate the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Any modifications or equivalent substitutions to the present utility model to achieve the same technical effect are within the protection scope of the present utility model.
Claims
1. A rotating magnetic float, comprising a float cylinder (1), a top end cap (2) connected to the top of the float cylinder, a bottom end cap (3) connected to the bottom of the float cylinder, and a magnetic steel assembly disposed inside the float cylinder, characterized in that: The magnetic steel assembly includes a mounting disc (10) pressed into the upper middle part of the float cylinder by an interference fit. A positioning rod (11) is vertically fixed at the center of the mounting disc. A rotating seat (12) is rotatably mounted on the positioning rod. A cylindrical magnet (13) is mounted on the rotating seat. There is a gap (14) between the outer end of the cylindrical magnet and the inner wall of the float cylinder. The axis of the mounting disc and the axis of the float cylinder are on the same straight line.
2. The rotating magnetic steel buoy as described in claim 1, characterized in that: The rotating seat (12) is made of magnetic material. The rotating seat includes a horizontal cylindrical tube (121). The two ends of the cylindrical tube are formed with cylindrical seats (122) with larger diameters. There are two cylindrical magnets (13), which are respectively attracted into the cylindrical seats at both ends of the cylindrical tube. Correspondingly, the positioning rod (11) has a cylindrical positioning base (111) with a larger diameter at the bottom and a cylindrical rotating rod (112) with a smaller diameter at the top. A rotating hole (123) is opened in the middle of the cylindrical tube (121). The cylindrical tube is rotatably fitted onto the cylindrical rotating rod at the top of the positioning rod through the rotating hole in the middle. The diameter of the rotating hole (123) is smaller than the diameter of the cylindrical positioning base (111).
3. The rotating magnetic steel buoy as described in claim 2, characterized in that: The top of the upper cylindrical rotating rod (112) of the positioning rod (11) has a spherical limiting part (113), and the diameter of the spherical limiting part is larger than the diameter of the rotating hole (123).