Dust-free closed electromagnetic brake

Abstract

This utility model relates to the field of brake technology and provides a dust-free enclosed electromagnetic brake, including a magnetic yoke, a moving plate, a rotor, and a flange. One end of the magnetic yoke has a mounting annular groove. The moving plate, rotor, and flange are located inside the mounting annular groove and arranged sequentially from the inside to the outside along the groove. The flange is fixedly connected to the magnetic yoke. The side wall of the magnetic yoke has an air inlet and an air outlet communicating with the inside of the mounting annular groove. The air inlet is used to connect to an air supply assembly, and the air outlet is used to connect to a dust collection container. This utility model blows air into the mounting annular groove through the air supply assembly and blows out the dust generated by rotor friction through the dust collection container, preventing a large accumulation of dust between the rotors and thus avoiding brake failure.

Description

Technical Field

[0001] This utility model relates to the field of brake technology, and more specifically, to a dust-free enclosed electromagnetic brake. Background Technology

[0002] Electromagnetic brakes, as a type of brake, are widely used in various industries. The basic principle of commonly used electromagnetic brakes is as follows: In the de-energized state, the moving plate presses against the rotor under the action of the spring, thereby achieving braking; when energized, the magnetic yoke attracts the moving plate, causing the moving plate to separate from the rotor, thereby releasing the brake.

[0003] When electromagnetic brakes are used in some applications, a closed structure is required to prevent dust and other contaminants from entering the interior (e.g., the prior art with publication number "CN218564242U"). However, although a closed structure can prevent external dust from entering the brake, the rotor friction generates dust when the brake is working, and the closed structure results in poor airflow in the magnetic yoke cavity, which can easily cause dust to accumulate between the rotors and cause brake failure. Utility Model Content

[0004] The purpose of this invention is to provide a dust-free, enclosed electromagnetic brake to overcome the aforementioned deficiencies in the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A dust-free enclosed electromagnetic brake includes a magnetic yoke, a moving plate, a rotor, and a flange. One end of the magnetic yoke is provided with a mounting ring groove. The moving plate, rotor, and flange are located inside the mounting ring groove and are arranged sequentially from the inside to the outside along the mounting ring groove. The flange is fixedly connected to the magnetic yoke. The side wall of the magnetic yoke is provided with an air inlet and an air outlet that communicate with the inside of the mounting ring groove. The air inlet is used to connect to an air supply assembly, and the air outlet is used to connect to a dust collection container.

[0007] Optionally, the inner wall of the mounting ring groove has a nickel plating.

[0008] Optionally, the bottom of the mounting ring groove is provided with a return air groove.

[0009] Optionally, the inner wall of the return air duct has a nickel plating.

[0010] Optionally, the bottom diameter of the mounting ring groove is larger than its opening diameter.

[0011] Optionally, the bottom diameter of the return air duct is smaller than its opening diameter.

[0012] Optionally, the flange and the magnetic yoke are connected by connecting screws, and the connecting screws are fitted with positioning sleeves for defining the distance between the magnetic yoke and the flange.

[0013] Optionally, the magnetic yoke has an annular sealing ring on the end face near the flange.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: In this utility model, the side wall of the magnetic yoke is provided with an air inlet and an air outlet that connect to the inside of the mounting ring groove. In practical applications, air is blown into the mounting ring groove through the air supply component, and the dust generated by rotor friction can be blown out through the dust collection container, so as to avoid a large amount of dust accumulating between the rotors and causing brake failure. Attached Figure Description

[0015] Figure 1 A front view of a dust-free enclosed electromagnetic brake provided by this utility model;

[0016] Figure 2 for Figure 1 AA section view in the middle;

[0017] Figure 3 This is a schematic diagram of the magnetic yoke.

[0018] Reference numerals: 1-Magnetic yoke, 101-Mounting ring groove, 102-Return air groove, 103-Air inlet, 104-Air outlet, 2-Coil, 3-Moving plate, 4-Rotor, 5-Flange, 6-Connecting screw, 7-Positioning sleeve, 8-Annular sealing ring. Detailed Implementation

[0019] refer to Figures 1-3 A dust-free, enclosed electromagnetic brake includes a magnetic yoke 1, a moving plate 3, a rotor 4, and a flange 5. One end of the magnetic yoke 1 has a mounting annular groove 101. The moving plate 3, rotor 4, and flange 5 are located inside the mounting annular groove 101 and arranged sequentially from the inside to the outside along the groove. The sidewall of the magnetic yoke 1 has an air inlet 103 and an air outlet 104 communicating with the interior of the mounting annular groove 101. Preferably, the air inlet 103 and the air outlet 104 are located on opposite sides of the magnetic yoke 1. In practical applications, the air inlet 103 is connected to an air supply assembly (not shown), and the air outlet 104 is connected to a dust collection container (not shown). Air is blown into the mounting annular groove 101 through the air supply assembly, and the dust generated by the friction of the rotor 4 is blown out through the dust collection container, preventing a large accumulation of dust between the rotors 4 and causing brake failure. The air supply component can include an air compressor, an air tank, and an air pump. The compressed air obtained by the air compressor is stored in the air tank and pumped into the air inlet 103 by the air pump when in use. Alternatively, the air supply component can be a blower that blows air directly into the air inlet 103. The dust collection container can be a tank, box, or other container capable of collecting dust.

[0020] The inner wall of the mounting ring groove 101 is nickel-plated, that is, the side walls and bottom of the mounting ring groove 101 are nickel-plated to obtain a mirror effect, which can greatly reduce dust adhesion to the inner wall of the mounting ring groove 101.

[0021] The bottom of the mounting ring groove 101 is provided with a return air groove 102, which facilitates air recirculation when air is blown into the mounting ring groove 101, making it easier to collect dust and further preventing dust from accumulating inside the mounting ring groove 101. Furthermore, in this embodiment, the bottom diameter of the mounting ring groove 101 is larger than its opening diameter, and the bottom diameter of the return air groove 102 is smaller than its opening diameter. The return air groove 102 and the mounting ring groove 101 form a pair of opposing flared structures, which facilitates better air recirculation.

[0022] Furthermore, the inner wall of the return air duct 102 is also nickel-plated, that is, the side walls and bottom of the return air duct 102 are also nickel-plated to obtain a mirror effect, which can greatly reduce dust adhesion to the inner wall of the return air duct 102.

[0023] In practical applications, the brake is installed in the same way as in existing technologies, using screws (not shown in the figure) passing through the magnetic yoke 1 to connect to the mounting surface (the screw head should be pressed against the sealing gasket to ensure the sealing of the screw connection, as in existing technologies). The end of the magnetic yoke 1 near the flange 5 is in contact with the mounting surface, forming a closed structure for the brake. As an alternative, in this embodiment, the magnetic yoke 1 has an annular sealing ring 8 on the end face near the flange 5 to ensure the sealing between the brake as a whole and the mounting surface.

[0024] Flange 5 is fixedly connected to yoke 1. Furthermore, those skilled in the art should understand that yoke 1 should contain coil 2, and yoke 1 should also have a spring hole (not shown) in which a spring (not shown) is installed that abuts against moving plate 3. In practical application, when coil 2 is energized, yoke 1 attracts moving plate 3, releasing the pressure on rotor 4 (while moving plate 3 compresses the spring), and the brake is in a released state. When coil 2 is de-energized, moving plate 3, under the action of the spring, presses rotor 4 firmly, thereby achieving braking.

[0025] Alternatively, in this embodiment, the flange 5 and the magnetic yoke 1 are connected by connecting screws 6. A positioning sleeve 7 is fitted onto the connecting screws 6. One end of the positioning sleeve 7 abuts against the magnetic yoke 1, and the other end of the positioning sleeve 7 abuts against the flange 5, thereby limiting the distance between the magnetic yoke 1 and the flange 5, so that the braking clearance does not need to be manually adjusted. In addition, those skilled in the art should understand that the moving plate 3 should be provided with a hole or notch for the positioning sleeve 7 to pass through, so as to facilitate the radial positioning of the moving plate 3, and at the same time, the positioning sleeve 7 serves as a guide for the movement of the moving plate 3.

[0026] 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 dust-free enclosed electromagnetic brake, comprising a magnetic yoke, a moving plate, a rotor, and a flange, wherein one end of the magnetic yoke is provided with a mounting annular groove, the moving plate, the rotor, and the flange are disposed inside the mounting annular groove and arranged sequentially from the inside to the outside along the mounting annular groove, and the flange is fixedly connected to the magnetic yoke, characterized in that, The sidewall of the magnetic yoke is provided with an air inlet and an air outlet that connect to the inside of the mounting ring groove. The air inlet is used to connect to the air supply component, and the air outlet is used to connect to the dust collection container.

2. The dust-free enclosed electromagnetic brake according to claim 1, characterized in that, The inner wall of the mounting ring groove has a nickel plating layer.

3. The dust-free enclosed electromagnetic brake according to claim 1, characterized in that, The bottom of the mounting ring groove is provided with a return air groove.

4. The dust-free enclosed electromagnetic brake according to claim 3, characterized in that, The inner wall of the return air duct has a nickel plating layer.

5. The dust-free enclosed electromagnetic brake according to claim 3, characterized in that, The bottom diameter of the mounting ring groove is larger than its opening diameter.

6. The dust-free enclosed electromagnetic brake according to claim 5, characterized in that, The bottom diameter of the return air duct is smaller than its opening diameter.

7. The dust-free enclosed electromagnetic brake according to any one of claims 1-6, characterized in that, The flange and the magnetic yoke are connected by connecting screws, and the connecting screws are fitted with positioning sleeves to limit the distance between the magnetic yoke and the flange.

8. The dust-free enclosed electromagnetic brake according to any one of claims 1-6, characterized in that, The magnetic yoke has an annular sealing ring on its end face near the flange.

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