Eddy current damping bearing

Abstract

The utility model relates to the technical field of bearings, in particular to an eddy current damping bearing which comprises an outer ring, an inner ring and a plurality of stator iron cores fixedly connected to the inner ring face of the outer ring in an annular array mode, coils are wound on the outer walls of the stator iron cores, and positioning blocks are arranged on the outer walls of the stator iron cores in a sliding and sleeved mode. A plurality of threaded holes I are formed in the stator iron cores, the coils are attached between the positioning blocks and the end parts of the stator iron cores, and adjusting mechanisms and auxiliary positioning mechanisms are respectively arranged between the plurality of positioning blocks and the plurality of stator iron cores. According to the eddy current damping bearing, the positioning block outside the stator core can be adjusted, coils with different numbers of turns can be well limited outside the stator core, and the coils with different numbers of turns can be correctly wound in an auxiliary manner, so that the eddy current damping bearing can operate in different working environments.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to an eddy current damping bearing. Background Art

[0002] Eddy current damping bearings (also known as magnetic bearings) are a technology that uses magnetic fields to support and stabilize rotating mechanical parts. Unlike traditional bearings, eddy current damping bearings do not require actual physical contact to support rotating parts, but use the magnetic field generated by the eddy current effect to maintain the position of rotating parts. They are usually used in systems that require high-speed rotation, high precision and low friction, such as electric motors.

[0003] The existing eddy current damping bearing is mainly composed of an outer ring, an inner ring, multiple stator cores and multiple coils. The multiple stator cores are connected inside the outer ring, the inner ring is between the multiple stator cores, and the multiple coils are respectively wound on the outer walls of the multiple stator cores. The outer wall of the stator core is also fixed with a positioning block, which is mainly used to limit the coil from leaving the stator core and assist in correctly winding the coil with the corresponding number of turns.

[0004] The number of coil turns can adjust the magnetic levitation force of the eddy current damping bearing as well as adjust the damping and stiffness characteristics. Therefore, different working environments require different numbers of coil turns wound around the outer wall of the stator core of the eddy current damping bearing. However, the positioning block outside the stator core of the existing eddy current damping bearing cannot be slidably adjusted, which makes it difficult to well limit the coils with different numbers of turns and to assist in correctly winding the coils with different numbers of turns. In view of this, we propose an eddy current damping bearing. Utility Model Content

[0005] The purpose of the utility model is to provide an eddy current damping bearing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an eddy current damping bearing, comprising an outer ring, an inner ring and a plurality of stator cores fixedly connected in an annular array to the inner ring surface of the outer ring, the outer walls of the plurality of stator cores are all wound with coils, and the outer walls of the plurality of stator cores are all slidably sleeved with positioning blocks, the coils are fitted between the positioning blocks and the ends of the stator cores, and adjustment mechanisms and auxiliary positioning mechanisms are respectively provided between the plurality of positioning blocks and the plurality of stator cores, the adjustment mechanism comprises a fastening screw and a plurality of threaded holes, a linear array of the plurality of threaded holes is provided on one side wall of the stator core, the fastening screw penetrates and is tightened in one side wall of the positioning block, and the fastening screw is threadably matched with one of the threaded holes.

[0007] Preferably, the auxiliary positioning mechanism includes a sliding column and a plurality of arc holes, and a linear array of the plurality of arc holes is opened on the side wall of the stator core near the threaded hole. The sliding column is slidably arranged in the inner wall of the positioning block through an elastic mechanism, and one end of the sliding column is fixedly connected to an arc block, and the arc block is slidably matched with one of the arc holes.

[0008] Preferably, the elastic mechanism comprises a cylindrical hole, which is opened on the inner wall of the positioning block, and the cylindrical hole is slidably matched with the sliding column, and a spring is fixedly connected between the inner circular surface of the cylindrical hole and the other end of the sliding column.

[0009] Preferably, the sliding column and the arc block are an integrally formed structure.

[0010] Preferably, the front and rear ends of the positioning block are fixedly connected with a plurality of anti-slip strips, and the plurality of anti-slip strips are arranged in a linear array.

[0011] Preferably, a hole groove is provided in the middle of one side wall of the positioning block, a second threaded hole is provided on the inner wall of the hole groove, the fastening screw is threadably matched with the second threaded hole, and the head of the fastening screw is slidably matched with the hole groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are: through the mutual cooperation between the positioning block, the auxiliary positioning mechanism, the fastening screw and the multiple threaded holes, the positioning block outside the stator core of the eddy current damping bearing can be adjusted, which can well limit the coils with different numbers of turns outside the stator core and assist in the correct winding of the coils with different numbers of turns, thereby facilitating the operation of the eddy current damping bearing in different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a display diagram of the outer ring, inner ring, stator core, coil and positioning block of the utility model;

[0015] Figure 3 It is a partial cross-sectional view of the utility model;

[0016] Figure 4 For the utility model Figure 3 Schematic diagram of the structure at A in the middle;

[0017] Figure 5 This is a display diagram of the positioning block, the second threaded hole, the hole groove and the anti-slip strip of the utility model;

[0018] Figure 6 This is a display diagram of the sliding column, spring and arc block of the utility model.

[0019] In the attached drawings, the parts represented by each reference numeral are listed as follows: 1. Outer ring; 2. Inner ring; 3. Stator core; 4. Coil; 5. Positioning block; 6. Threaded hole 1; 7. Arc hole; 8. Fastening screw; 9. Columnar hole; 10. Sliding column; 11. Spring; 12. Threaded hole 2; 13. Hole groove; 14. Anti-slip strip; 15. Arc block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1-Figure 6 An eddy current damping bearing shown in the figure comprises an outer ring 1, an inner ring 2 and a plurality of stator cores 3 fixedly connected in an annular array to the inner ring surface of the outer ring 1, coils 4 are wound on the outer walls of the plurality of stator cores 3, and positioning blocks 5 are slidably sleeved on the outer walls of the plurality of stator cores 3, the coils 4 are fitted between the positioning blocks 5 and the ends of the stator cores 3, and adjustment mechanisms and auxiliary positioning mechanisms are respectively provided between the plurality of positioning blocks 5 and the plurality of stator cores 3, the adjustment mechanisms comprise a fastening screw 8 and a plurality of threaded holes 6, a plurality of threaded holes 6 are linearly arrayed on one side wall of the stator core 3, the fastening screw 8 penetrates and is tightened in one side wall of the positioning block 5, and the fastening screw 8 is threadedly matched with one of the threaded holes 6.

[0023] See also Figure 6 In the figure, the sliding column 10 and the arc block 15 are an integrally formed structure; the stability between the sliding column 10 and the arc block 15 is good.

[0024] See also Figure 5 In the figure, the front and rear ends of the positioning block 5 are fixedly connected with multiple anti-slip strips 14, and the multiple anti-slip strips 14 are arranged in a linear array; by setting the anti-slip strips 14, an anti-slip effect can be achieved when the front and rear ends of the positioning block 5 are held and the positioning block 5 is slid.

[0025] See also Figure 5 In the figure, a hole groove 13 is opened in the middle of one side wall of the positioning block 5, and a second threaded hole 12 is opened on the inner wall of the hole groove 13. The fastening screw 8 is threadedly matched with the second threaded hole 12, and the head of the fastening screw 8 is slidingly matched with the hole groove 13; by setting the second threaded hole 12, it is convenient for the fastening screw 8 to be screwed into the positioning block 5, and by setting the hole groove 13, the head of the fastening screw 8 can be hidden in the positioning block 5.

[0026] In this embodiment, when it is necessary to adjust the position of the positioning block 5 on the outer wall of the stator core 3 to adapt to the coils 4 with different numbers of turns restricted outside the stator core 3 and to assist in correctly winding the coils 4 with different numbers of turns, first, turn a fastening screw 8 outward until the fastening screw 8 leaves a corresponding threaded hole 6 on the side wall of the stator core 3, and then slide the positioning block 5 upward. Since a plurality of threaded holes 6 are linearly arrayed on one side wall of the stator core 3, the position of the positioning block 5 can be adjusted by cooperating with the fastening screw 8. Each threaded hole 6 is fixed at a position corresponding to the positioning block 5, thereby facilitating the operation of the eddy current damping bearing under different working environments.

[0027] Embodiment 2

[0028] See also Figure 3 , Figure 4 and Figure 6 This embodiment further explains Example 1. The auxiliary positioning mechanism in the figure includes a slide post 10 and a plurality of arc holes 7. A linear array of the plurality of arc holes 7 is arranged on the side wall of the stator core 3 near the threaded hole 1 6. The slide post 10 is slidably arranged in the inner wall of the positioning block 5 through an elastic mechanism, and one end of the slide post 10 is fixedly connected to an arc block 15, and the arc block 15 is slidably matched with one of the arc holes 7.

[0029] See also Figure 4 and Figure 6 In the figure, the elastic mechanism includes a cylindrical hole 9, which is opened on the inner wall of the positioning block 5, and the cylindrical hole 9 is slidably matched with the sliding column 10, and a spring 11 is fixedly connected between the inner circular surface of the cylindrical hole 9 and the other end of the sliding column 10.

[0030] In this embodiment, when the positioning block 5 slides on the outer wall of the stator core 3 toward the inner ring surface of the outer ring 1, the arc block 15 can slide out of a corresponding arc hole 7 on the side wall of the stator core 3, and the arc block 15 can drive the sliding column 10 to slide inward inside the columnar hole 9, and the sliding column 10 can squeeze the spring 11 connected to the columnar hole 9 until the positioning block 5 moves to the arc block 15 corresponding to the next arc hole 7. Under the action of the spring 11, the arc hole 7 can be automatically inserted into the arc hole 7, and under the action of the spring 11, the positioning block 5 can maintain a certain fixed state, and at this time, the fastening screw 8 in the positioning block 5 will correspond to a threaded hole 6, which is convenient for the alignment between the fastening screw 8 and the threaded hole 6, bringing convenience.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eddy current damping bearing, comprising an outer ring (1), an inner ring (2), and a plurality of stator cores (3) fixedly connected in an annular array to the inner ring surface of the outer ring (1), characterized in that: Coils (4) are wound on the outer walls of the plurality of stator cores (3), and positioning blocks (5) are slidably sleeved on the outer walls of the plurality of stator cores (3). The coils (4) are fitted between the positioning blocks (5) and the ends of the stator cores (3). Adjustment mechanisms and auxiliary positioning mechanisms are respectively provided between the plurality of positioning blocks (5) and the plurality of stator cores (3). The adjustment mechanisms include a fastening screw (8) and a plurality of threaded holes (6). The plurality of threaded holes (6) are linearly arrayed on one side wall of the stator core (3). The fastening screw (8) penetrates through the one side wall of the positioning block (5) and is screwed therein, and the fastening screw (8) is threadedly matched with one of the threaded holes (6).

2. The eddy current damping bearing according to claim 1, characterized in that: The auxiliary positioning mechanism comprises a slide post (10) and a plurality of arcuate holes (7); the plurality of arcuate holes (7) are linearly arranged in an array on the side wall of the stator core (3) near a threaded hole (6); the slide post (10) is slidably arranged in the inner wall of the positioning block (5) through an elastic mechanism; one end of the slide post (10) is fixedly connected to an arcuate block (15); the arcuate block (15) is slidably matched with one of the arcuate holes (7).

3. The eddy current damping bearing according to claim 2, characterized in that: The elastic mechanism comprises a columnar hole (9), the columnar hole (9) is formed on the inner wall of the positioning block (5), the columnar hole (9) and the sliding column (10) are slidably matched, and a spring (11) is fixedly connected between the inner circular surface of the columnar hole (9) and the other end of the sliding column (10).

4. The eddy current damping bearing according to claim 2, characterized in that: The sliding column (10) and the arc-shaped block (15) are an integrally formed structure.

5. The eddy current damping bearing according to claim 1, characterized in that: The front and rear ends of the positioning block (5) are fixedly connected to a plurality of anti-slip strips (14), and the plurality of anti-slip strips (14) are arranged in a linear array.

6. The eddy current damping bearing according to claim 1, characterized in that: A hole groove (13) is provided in the middle of one side wall of the positioning block (5), a second threaded hole (12) is provided on the inner wall of the hole groove (13), the fastening screw (8) and the second threaded hole (12) are threadedly matched, and the head of the fastening screw (8) and the hole groove (13) are slidably matched.

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