Clamping stagnation preventing steel ball corner rotating electromagnet structure

Abstract

The invention discloses an anti-clamping stagnation steel ball corner rotating electromagnet structure, and relates to the technical field of steel ball corner rotating electromagnets. A plurality of mounting grooves distributed in the circumferential direction are uniformly distributed in the magnet yoke and the armature, high-strength groove parts are arranged in the mounting grooves, and steel balls are arranged in the high-strength groove parts; a groove is formed in the high-strength groove part, and the groove is expanded in the circumferential direction to form a curve with the slope gradually decreasing along with the depth of the groove. The technical problem that in the prior art, clamping stagnation is likely to happen under the extreme environment condition is solved.

Description

Technical Field

[0001] This invention relates to the field of ball-rotating electromagnet technology, specifically a ball-rotating electromagnet structure that prevents jamming. Background Technology

[0002] The ball-rotating electromagnet is a type of rotating electromagnet. This type of rotating electromagnet has inclined grooves at the corresponding positions of the yoke and the armature, with steel balls placed between them. Utilizing the direct motion principle of electromagnet attraction, when a certain voltage is applied to the coil, the armature is attracted, pressing the yoke to move linearly. At the same time, with the help of the rolling steel balls in the inclined grooves, the armature is instantly rotated to the left or right at a certain angle, thus converting the electromagnet from axial linear motion into rotational motion to the left or right at a certain angle.

[0003] In existing ball-bearing rotary electromagnets, the grooves are located where the magnetic properties are good but the hardness is low. The frictional resistance between the yoke and armature components, resulting in the rolling of the steel balls in the grooves, is relatively high, making the ball-rotating electromagnet prone to jamming under extreme environmental conditions. Furthermore, existing ball-rotating electromagnets do not delve into the groove curve; for example, the rotating electromagnet disclosed in utility model patent CN203910404U has a groove curve that is simply a spiral structure relative to the armature rotation center line. When the groove curve is simply a spiral structure relative to the armature rotation center line, the rotational torque at the end of the axial stroke of the ball-rotating electromagnet is much greater than the initial rotational torque when the coil is energized, easily causing the ball-rotating electromagnet to jam due to insufficient initial torque under extreme environmental conditions. Summary of the Invention

[0004] The purpose of this invention is to provide a ball-rotating electromagnet structure that prevents jamming, in order to solve at least one of the above-mentioned technical problems.

[0005] This invention provides an anti-jamming steel ball rotating electromagnet structure, comprising: a magnetic yoke and an armature; multiple mounting grooves distributed along the circumferential direction are provided on the magnetic yoke and the armature, high-strength grooved parts are provided in the mounting grooves, and steel balls are provided in the high-strength grooved parts; grooves are provided inside the high-strength grooved parts, and the grooves unfold along the circumferential direction as a curve with a slope that gradually decreases with the groove depth.

[0006] Optionally, the material of the high-strength grooved part includes high-strength mold steel.

[0007] Optionally, the number of mounting slots on the magnetic yoke or the armature is three, and the three mounting slots are evenly distributed along the circumference of the magnetic yoke or the armature.

[0008] Optionally, the high-strength grooved part is disposed in the mounting groove on the magnetic yoke or the mounting groove on the armature.

[0009] Optionally, the high-strength grooved part is connected to the magnetic yoke or the armature by laser welding.

[0010] Optionally, the mounting groove is a stepped square groove, and the high-strength grooved part is a stepped square part, which overlaps the steps of the mounting groove.

[0011] This invention provides a ball-bearing rotating electromagnet structure to prevent jamming. Multiple circumferentially distributed mounting slots are formed on the yoke and armature, and grooved parts with moderate magnetic properties but high hardness are installed in these slots. This reduces the rolling friction resistance of the steel balls within the grooves, thus preventing the electromagnet from jamming. Furthermore, this invention designs the grooves in the grooved parts to form a curve with a slope that gradually decreases with the groove depth, increasing the initial rotational torque of the electromagnet when the coil is energized. This prevents the electromagnet from jamming under extreme environmental conditions due to insufficient initial torque. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 A three-dimensional schematic diagram of a ball-rotating electromagnet structure for preventing jamming, provided in an embodiment of the present invention; Figure 2 A top view of an anti-jamming ball-rotating electromagnet provided in an embodiment of the present invention; Figure 3 A three-view drawing of a high-strength grooved part provided in an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of a high-strength grooved part along the BB direction provided in an embodiment of the present invention; Figure 5 This is a side sectional view of a mounting groove provided in an embodiment of the present invention.

[0014] In the diagram: 1. Magnetic yoke, 2. Armature, 3. High-strength grooved part, 4. Steel ball, 5. Mounting slot. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0016] Figure 1 This is a three-dimensional schematic diagram of a ball-rotating electromagnet structure for preventing jamming, according to an embodiment of the present invention. Figure 2 This is a top view of a ball-operated rotating electromagnet for preventing jamming, provided according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, it includes: a magnetic yoke 1 and an armature 2; multiple mounting grooves 5 are evenly distributed along the circumferential direction on the magnetic yoke 1 and the armature 2, and high-strength grooved parts 3 are set in the mounting grooves 5, and steel balls 4 are set in the high-strength grooved parts 3.

[0017] Preferably, such as Figure 2 As shown, there are three mounting slots 5 on the yoke 1 or armature 2, and the three mounting slots 5 are evenly distributed along the circumference of the yoke 1 or armature 2.

[0018] Preferably, the high-strength grooved part 3 is disposed in the mounting groove 5 on the magnetic yoke 1 or the mounting groove 5 on the armature 2.

[0019] Preferably, the high-strength grooved part 3 is connected to the magnetic yoke 1 or the armature 2 by laser welding.

[0020] Figure 3 This is a three-view drawing of a high-strength grooved part according to an embodiment of the present invention. Figure 4 This is a schematic cross-sectional view of a high-strength grooved part along the BB direction according to an embodiment of the present invention. Figure 3 and Figure 4 As shown, the high-strength grooved part 3 has a groove inside. The groove unfolds along the circumferential direction as a curve with a slope that gradually decreases with the groove depth. Specifically, the slope of the curve is larger in the initial stroke stage and smaller in the axial stroke end stage.

[0021] Preferably, such as Figure 4 As shown, the shape of the groove curve is a quadratic curve: y=ax 2 +bx(a<0).

[0022] Preferably, the material of the high-strength grooved part 3 includes high-strength mold steel.

[0023] Figure 5 This is a side sectional view of a mounting groove provided according to an embodiment of the present invention. Figure 3 and Figure 5As shown, the mounting groove 5 is a square groove with steps, and the high-strength groove part 3 is a square part with steps. The high-strength groove part 3 is connected to the steps of the mounting groove 5 through the steps, so as not to affect the connection between the high-strength groove part 3 and the magnetic yoke 1 or armature 2, and to prevent the high-strength groove part 3 from falling off due to connection breakage during the process of being subjected to axial electromagnetic force.

[0024] As described above, this invention provides a ball-bearing rotating electromagnet structure to prevent jamming. Multiple circumferentially distributed mounting slots are formed on the yoke and armature, and grooved parts with moderate magnetic properties but high hardness are installed in these slots. This reduces the rolling friction resistance of the steel balls within the grooves, thus preventing the rotating electromagnet from jamming. Furthermore, this invention also increases the initial rotational torque of the rotating electromagnet when the coil is energized by designing the grooves in the grooved parts as a curve with a slope that gradually decreases with the groove depth. This prevents the rotating electromagnet from jamming under extreme environmental conditions due to insufficient initial torque.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ball-operated rotating electromagnet structure for preventing jamming, characterized in that, include: A magnetic yoke and an armature; the magnetic yoke and the armature are provided with multiple mounting grooves distributed along the circumferential direction, and high-strength grooved parts are provided in the mounting grooves, and steel balls are provided in the high-strength grooved parts; The high-strength grooved part has grooves inside, and the grooves unfold along the circumferential direction as a curve with a slope that gradually decreases with the depth of the groove.

2. The anti-jamming steel ball rotating electromagnet structure according to claim 1, characterized in that: The high-strength grooved parts are made of high-strength mold steel.

3. The anti-jamming steel ball rotating electromagnet structure according to claim 1, characterized in that: The number of mounting slots on the magnetic yoke or the armature is three, and the three mounting slots are evenly distributed along the circumference of the magnetic yoke or the armature.

4. The anti-jamming steel ball rotating electromagnet structure according to claim 1, characterized in that: The high-strength grooved part is disposed in the mounting groove on the magnetic yoke or in the mounting groove on the armature.

5. The anti-jamming steel ball rotating electromagnet structure according to claim 1, characterized in that: The high-strength grooved part is connected to the magnetic yoke or the armature by laser welding.

6. The anti-jamming steel ball rotating electromagnet structure according to claim 1, characterized in that: The mounting groove is a square groove with steps, and the high-strength grooved part is a square part with steps. The high-strength grooved part is attached to the steps of the mounting groove by the steps.

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