External totally-closed electromagnetic brake easy to install

Abstract

The utility model relates to the field of electromagnetic brakes, and particularly discloses an external totally-enclosed easily-installed electromagnetic brake, which comprises a stator, a movable plate, a rotor and a flange which are sequentially arranged in the axial direction, and also comprises a cover cap, the cover cap is detachably sleeved outside the stator, so that the movable plate, the rotor and the flange are installed in the cover cap; an inner hole of the rotor is connected with a mounting shaft, one end of the mounting shaft extends out of an inner hole of the stator, and the other end of the mounting shaft is rotationally connected with the flange. The sealing performance can be improved, and the braking performance of the electromagnetic brake is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic brake technology, and more specifically, to an external, fully enclosed, easy-to-install electromagnetic brake. Background Technology

[0002] An electromagnetic brake is a device that uses electromagnetic force to achieve braking. It is mainly used to control the movement of mechanical equipment, enabling it to stop quickly and accurately or remain stationary. A spring provides braking force when the power is off, ensuring close contact between the brake disc and the friction pads. Sufficient elasticity is required to overcome the inertia of the brake disc and to quickly return to its original shape after braking.

[0003] In conventional electromagnetic brakes, both the rotor and the moving plate are exposed, and the inner hole of the brake is connected to the motor shaft. When used in dusty or humid environments, moisture can easily enter the stator or gap, leading to electromagnetic performance failure, insufficient braking gap, or inability to retract. Utility Model Content

[0004] The purpose of this invention is to provide an external, fully enclosed, easy-to-install electromagnetic brake that can improve airtightness and ensure the braking performance of the electromagnetic brake.

[0005] This utility model is achieved through the following technical solution: an externally mounted, fully enclosed, easily installed electromagnetic brake, comprising a stator, a moving plate, a rotor, and a flange arranged axially in sequence, and a cover, wherein the cover is detachably sleeved on the outside of the stator, so that the moving plate, the rotor, and the flange are installed inside the cover; the inner hole of the rotor is connected to a mounting shaft, one end of the mounting shaft extends out of the inner hole of the stator, and the other end of the mounting shaft is rotatably connected to the flange.

[0006] Furthermore, the cover abuts against the flange, and at least one set screw passes between the cover and the flange.

[0007] Furthermore, friction ring plates are provided on both sides of the rotor, and a first ring groove adapted to the friction ring plates is provided on one end face of the moving plate.

[0008] Furthermore, the flange has a second annular groove on the end face near the rotor that is adapted to the friction ring.

[0009] Furthermore, a guide sleeve abuts between the flange and the stator, and a connecting screw passes through the flange and the stator, with the connecting screw passing through the guide sleeve.

[0010] Furthermore, a first bearing is provided between the mounting shaft and the flange, and a second bearing is provided between the mounting shaft and the stator.

[0011] Furthermore, the end of the mounting shaft away from the cover is provided with a mating hole for connection and cooperation with the motor.

[0012] Furthermore, the stator has a cylindrical shape.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: This utility model sets up an installation shaft that is connected to the rotor as one unit, and a cover is sleeved on the outside of the stator to enclose the rotor and moving plate exposed outside the stator to form a modular structure. The installation shaft can be directly connected to the motor installation interface, which improves the sealing performance of the brake, so that the brake has a good water and dust isolation effect and ensures the normal braking performance of the brake. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal structure of the externally mounted, fully enclosed, easily installed electromagnetic brake of this utility model.

[0015] Figure 2 This is a schematic diagram of the right side structure of the externally mounted, fully enclosed, easily installed electromagnetic brake of this utility model.

[0016] Reference numerals: 1-Stator, 2-Moving plate, 21-First annular groove, 3-Flange, 31-Second annular groove, 4-Cover, 5-Rotor, 51-Friction ring, 6-Mounting shaft, 61-Mating hole, 7-Guide sleeve, 8-Connecting screw, 9-Set screw, 10-First bearing, 11-Second bearing. Detailed Implementation

[0017] The following description, in conjunction with specific embodiments, provides further details. Figures 1-2 As shown, this embodiment is an external, fully enclosed, easily installed electromagnetic brake, including a stator 1, a moving plate 2, a rotor 5, and a flange 3 arranged axially in sequence, and a cover 4. The cover 4 is detachably fitted onto the outside of the stator 1, so that the moving plate 2, rotor 5, and flange 3 are installed inside the cover 4. A mounting shaft 6 is connected to the inner hole of the rotor 5. One end of the mounting shaft 6 extends out of the inner hole of the stator 1, and the other end of the mounting shaft 6 is rotatably connected to the flange 3. Specifically, by using a spline connection between the rotor 5 and the mounting shaft 6, and by using the cover 4 to enclose and seal one end of the stator 1, air contact between the rotor 5 and the moving plate 2 and the outside is avoided. The mounting shaft 6 is then connected to the motor shaft, solving the drawback of secondary installation and connection between the motor shaft and the brake rotor 5. This makes the entire brake an integrated modular design, effectively preventing dust and moisture from contacting the gap between the brake rotor 5 and the moving plate 2, providing better sealing performance, and ensuring the normal braking effect of the brake.

[0018] like Figure 1As shown, in this embodiment, the cover 4 abuts against the flange 3, and at least one set screw 9 passes through the cover 4 and the flange 3; specifically, a hole is made in the cover 4 for the set screw 9 to pass through and connect and fix with the flange 3, making disassembly simple and convenient.

[0019] To improve the braking effect of rotor 5, friction rings 51 are provided on both sides of rotor 5. The friction rings 51 protrude outward, and a first ring groove 21 adapted to the friction rings 51 is provided on one end face of the moving plate 2. When the moving plate 2 contacts rotor 5, the friction rings 51 are engaged in the first ring groove 21, which increases the contact area and has a certain promoting effect on shortening the braking time.

[0020] Furthermore, in some embodiments, the flange 3 has a second annular groove 31 on the end face near the rotor 5 that is adapted to the friction ring 51; specifically, when the moving plate 2 makes braking contact with the rotor 5, it will push a part of the friction ring 51 on the other side of the rotor 5 into the second annular groove 31, thereby further increasing the braking contact area and thus improving the braking effect.

[0021] like Figure 1 As shown, in this embodiment, a guide sleeve 7 abuts between the flange 3 and the stator 1, and a connecting screw 8 passes through the flange 3 and the stator 1. Specifically, the connecting screw 8 is used to fix the flange 3 and the stator 1 into an integral structure, and the guide sleeve 7 is used to limit the axial displacement of the moving plate 2 to avoid excessive displacement.

[0022] Reference Figure 1 As shown, in this embodiment, a first bearing 10 is provided between the mounting shaft 6 and the flange 3, and a second bearing 11 is provided between the mounting shaft 6 and the stator 1. Specifically, the first bearing 10 and the second bearing 11 are respectively installed at the front and rear ends of the mounting shaft 6, ensuring the reliability and smooth operation of the mounting shaft 6 when it rotates with the rotor 5.

[0023] Even better, the end of the mounting shaft 6 away from the cover 4 is provided with a mating hole 61 for connecting with the motor. Depending on the size of the product shaft to be mated and the installation position, one end of the mating hole 61 can be directly inserted into the motor mounting interface and tightened with screws. The installation is simple and reliable, reducing the risks caused by installation.

[0024] like Figure 1 As shown, stator 1 has a cylindrical structure, specifically a long cylindrical shape.

[0025] 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. An external, fully enclosed, easily installed electromagnetic brake, comprising a stator (1), a moving plate (2), a rotor (5), and a flange (3) arranged axially in sequence, characterized in that: It also includes a cover (4), which is detachably sleeved on the outside of the stator (1), so that the moving plate (2), the rotor (5) and the flange (3) are installed inside the cover (4); The inner hole of the rotor (5) is connected to a mounting shaft (6), one end of which extends out of the inner hole of the stator (1), and the other end of which is rotatably connected to the flange (3).

2. The external, fully enclosed, easily installed electromagnetic brake according to claim 1, characterized in that: The cover (4) abuts against the flange (3), and at least one set screw (9) passes between the cover (4) and the flange (3).

3. The external, fully enclosed, easily installed electromagnetic brake according to claim 1, characterized in that: Friction ring plates (51) are provided on both sides of the rotor (5), and a first ring groove (21) adapted to the friction ring plates (51) is provided on one end face of the moving plate (2).

4. The external, fully enclosed, easily installed electromagnetic brake according to claim 3, characterized in that: The flange (3) has a second annular groove (31) on the end face near the rotor (5) that is adapted to the friction ring (51).

5. The externally mounted, fully enclosed, easily installed electromagnetic brake according to claim 1, characterized in that: A guide sleeve (7) abuts between the flange (3) and the stator (1), and a connecting screw (8) passes through the flange (3) and the stator (1), with the connecting screw (8) passing through the guide sleeve (7).

6. The externally mounted, fully enclosed, easily installed electromagnetic brake according to claim 1, characterized in that: A first bearing (10) is provided between the mounting shaft (6) and the flange (3), and a second bearing (11) is provided between the mounting shaft (6) and the stator (1).

7. The external, fully enclosed, easily installed electromagnetic brake according to claim 1, characterized in that: The mounting shaft (6) has a mating hole (61) at one end away from the cover (4) for connection with the motor.

8. The external, fully enclosed, easily installed electromagnetic brake according to claim 1, characterized in that: The stator (1) has a cylindrical shape.

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