Electromagnetic brake with efficient heat dissipation function

Abstract

The utility model relates to the technical field of electromagnetic brakes, in particular to an efficient heat dissipation electromagnetic brake which comprises a magnet yoke and a rotor, and a plurality of spoilers are arranged in an inner hole of the magnet yoke. One end of the rotor is provided with a spiral structure inserted into an inner hole of the magnet yoke, and the rotor rotates to drive the spiral structure to cooperate with the spoiler to generate air flow. The heat dissipation effect of the electromagnetic brake is further improved, and overheating deformation and potential safety hazards are avoided.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic brake technology, and more specifically, to an electromagnetic brake with high-efficiency heat dissipation. Background Technology

[0002] Electromagnetic brakes, as a key type of actuator, are widely used in various mechanical transmission systems, automated production lines, and logistics transportation equipment, among many other critical applications, thanks to their characteristic of generating a magnetic field by passing an electric current, based on the principle of electromagnetic induction, thereby achieving precise braking control of moving parts.

[0003] However, the continuous operation of industrial production necessitates frequent power-on and power-off operations for electromagnetic brakes. This operating mode inevitably generates a significant amount of heat during operation. If this heat cannot be dissipated promptly and effectively, the surface temperature of the electromagnetic brake will rise rapidly, and the rate of temperature rise will accelerate considerably.

[0004] Excessive temperature and rapid temperature rise can have multi-dimensional negative impacts on the performance of electromagnetic brakes. From a braking performance perspective, it can lead to a significant degradation in the performance of braking materials, resulting in a substantial reduction in braking reliability and accuracy, which in turn seriously affects the normal operation of the equipment. From an equipment lifespan perspective, it can accelerate the aging process of the electromagnetic coil, greatly shortening its service life. This will undoubtedly increase equipment maintenance costs and may also lead to frequent downtime for maintenance, significantly reducing production efficiency. Considering the overall structural stability, it may also cause thermal deformation of other mechanical components, compromising the original overall structural stability of the equipment and creating potential hazards for safe production. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnetic brake with high-efficiency heat dissipation, which can further improve the heat dissipation effect of the electromagnetic brake and avoid overheating deformation and safety hazards.

[0006] This utility model is achieved through the following technical solution: an efficient heat dissipation electromagnetic brake, including a magnetic yoke and a rotor, wherein multiple baffles are provided in the inner hole of the magnetic yoke; one end of the rotor is provided with a spiral structure inserted into the inner hole of the magnetic yoke, and the rotation of the rotor drives the spiral structure and the baffles to work together to generate airflow.

[0007] Furthermore, the helical structure includes a cylindrical portion and a helical groove, the cylindrical portion being perpendicularly connected to the rotor, and the helical groove being arranged on the outer edge of the cylindrical portion.

[0008] Furthermore, the inner hole of the cylindrical part is provided with a spline groove.

[0009] Furthermore, the spoilers are arranged in groups, and multiple groups of spoilers are evenly spaced along the axial direction of the magnetic yoke.

[0010] Furthermore, the spoiler is arc-shaped.

[0011] Furthermore, it also includes an armature and a flange, wherein an elastic element is connected between the armature and the magnetic yoke, and the rotor is disposed between the armature and the flange.

[0012] Furthermore, friction plates are bonded to both sides of the rotor.

[0013] Furthermore, the friction pad has a ring-shaped structure.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: This utility model improves the heat dissipation capacity of the brake by generating airflow through the synergistic operation of the helical grooves on the rotor and the multi-layered baffles on the inner wall of the magnetic yoke, thereby effectively reducing the surface temperature. This not only significantly improves the working efficiency of the electromagnetic brake, ensuring its stable and reliable performance under long-term, high-intensity working conditions, but also greatly reduces equipment maintenance costs and downtime due to equipment failures due to the improved performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the high-efficiency heat dissipation electromagnetic brake of this utility model.

[0016] Figure 2 This is a schematic diagram of the isometric structure of the rotor in this utility model;

[0017] Figure 3 This is a schematic diagram of the magnetic yoke in this utility model;

[0018] Figure 4 This is a front view of the rotor in this utility model.

[0019] Reference numerals: 1-Magnetic yoke, 11-Break plate, 2-Rotor, 21-Friction plate, 3-Helical structure, 31-Helical groove, 32-Cylinder, 321-Spline groove, 4-Armature, 5-Flange. Detailed Implementation

[0020] The following description, in conjunction with specific embodiments, provides further details. Figures 1-4As shown, this embodiment is an electromagnetic brake with high-efficiency heat dissipation, including a magnetic yoke 1 and a rotor 2. The inner hole of the magnetic yoke 1 is provided with multiple baffles 11. One end of the rotor 2 is provided with a spiral structure 3 inserted into the inner hole of the magnetic yoke 1. The rotation of the rotor 2 drives the spiral structure 3 and the baffles 11 to generate airflow in coordination. Specifically, when the brake is energized, the moving plate is attracted and a gap is left between the rotor 2 and the moving plate. At the same time, the shaft rotates and drives the rotor 2 to rotate. The spiral structure 3 stirs the airflow to form an airflow. The baffles increase the air contact area and enhance heat exchange, thereby achieving the purpose of enhancing the heat dissipation performance of the brake and effectively avoiding thermal deformation of the brake.

[0021] like Figure 1 and Figure 4 As shown, in some embodiments, the spiral structure 3 includes a cylindrical portion 32 and a spiral groove 31. The cylindrical portion 32 is perpendicularly connected to the rotor 2, and the spiral groove 31 is arranged on the outer edge of the cylindrical portion 32. Specifically, the heat generated by the rotor 2 during braking is conducted to the spiral structure 3 for heat dissipation. The cylindrical portion 32 has a hollow structure inside, which, together with the spiral groove 31, achieves synchronous heat dissipation inside and outside, accelerating the heat dissipation effect.

[0022] like Figure 2 As shown, the inner hole of the cylindrical part 32 in this embodiment is provided with a spline groove 321; specifically, the mounting shaft is connected through the spline groove 321 to avoid circumferential misalignment.

[0023] like Figure 3 As shown, the spoilers 11 are arranged in groups, with multiple rows arranged axially, and multiple groups of spoilers 11 are evenly spaced axially on the magnetic yoke 1. Each group of spoilers is staggered, ensuring that the airflow makes full contact with the surface of the spoilers 11 when it passes through, so as to better remove heat.

[0024] like Figure 3 As shown, in some embodiments, the spoiler 11 is arc-shaped; specifically, the arc size of each row of spoilers is different, with a circular space in the middle, so that the spiral structure 3 can extend into the inner hole of the magnetic yoke 1, and the spiral structure 3 works in concert with the spoilers.

[0025] In this embodiment, the brake also includes an armature 4 and a flange 5. An elastic element is connected between the armature 4 and the magnetic yoke 1, and the rotor 2 is located between the armature 4 and the flange 5. Specifically, the elastic element is used to push the armature 4 out to contact the rotor 2 to generate braking.

[0026] like Figure 1 As shown, friction plates 21 are bonded to both sides of the rotor 2 in this embodiment, which greatly improves the braking torque and braking effect.

[0027] Alternatively, the friction plate 21 is an annular structure and is embedded in the rotor 2.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency heat-dissipating electromagnetic brake, comprising a magnetic yoke (1) and a rotor (2), characterized in that: The magnetic yoke (1) has multiple baffles (11) in its inner hole; One end of the rotor (2) is provided with a spiral structure (3) inserted into the inner hole of the magnetic yoke (1). The rotation of the rotor (2) drives the spiral structure (3) and the spoiler (11) to generate airflow in coordination.

2. The high-efficiency heat dissipation electromagnetic brake according to claim 1, characterized in that: The spiral structure (3) includes a cylindrical part (32) and a spiral groove (31). The cylindrical part (32) is perpendicularly connected to the rotor (2), and the spiral groove (31) is arranged on the outer edge of the cylindrical part (32).

3. The high-efficiency heat dissipation electromagnetic brake according to claim 2, characterized in that: The inner hole of the cylindrical part (32) is provided with a spline groove (321).

4. The high-efficiency heat dissipation electromagnetic brake according to claim 1, characterized in that: The spoilers (11) are arranged in groups, and multiple groups of spoilers (11) are evenly spaced along the axial direction of the magnetic yoke (1).

5. The high-efficiency heat dissipation electromagnetic brake according to claim 4, characterized in that: The spoiler (11) is arc-shaped.

6. The high-efficiency heat dissipation electromagnetic brake according to claim 1, characterized in that: It also includes an armature (4) and a flange (5), wherein an elastic element is connected between the armature (4) and the magnetic yoke (1), and the rotor (2) is disposed between the armature (4) and the flange (5).

7. The high-efficiency heat dissipation electromagnetic brake according to claim 1, characterized in that: Friction plates (21) are bonded to both sides of the rotor (2).

8. The high-efficiency heat dissipation electromagnetic brake according to claim 7, characterized in that: The friction plate (21) has a ring structure.

Images