Manual / automatic integrated electromagnetic brake

Abstract

This utility model discloses a manual / automatic integrated electromagnetic brake, including a stator, an armature disk, a rotor, and an outer flange. The stator and outer flange are coaxially fixed at their edges by multiple screws. The armature disk is located on the front side of the stator and is slidably connected to the screws. The rotor is located between the armature disk and the outer flange and is equipped with a bushing for shaft mounting. Multiple coils are embedded in the front side of the stator, and multiple axial mounting grooves are provided on the front side of the stator. Springs a are placed in the mounting grooves. A forward-extending cylinder is located at the center of the front side of the outer flange, and a pressure plate is sleeved on the cylinder. Multiple push rods are fixedly installed circumferentially on the rear edge of the pressure plate. The push rods axially penetrate the outer flange and are slidably connected to it. When the pressure plate moves backward, the push rods apply a backward thrust to the armature disk. A screw cap is screwed to the front end of the cylinder. Compared with the current manual operation mechanism with a handle, this design is advantageous in reducing size, lowering the installation space requirements, and eliminating the need for external force to maintain the released state.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic brake technology, specifically to a manual / automatic integrated electromagnetic brake. Background Technology

[0002] Motor brakes are brakes that utilize electromagnetic attraction and de-energized friction braking principles to decelerate, stop, or maintain a stopped state of moving parts. They enable rapid stopping and precise positioning. When power failure requires releasing the brake, a lever is typically used to manually release the friction brake plate, allowing the motor to resume rotation. However, this requires continuous manual force to maintain the released state, making operation inconvenient. To address these technical issues, Chinese utility model patent CN221704266U discloses a manual release self-locking device for an electromagnetic brake. This device includes an electromagnetic brake with a handle for manual release. A bracket is mounted on the electromagnetic brake, and a locking rod is rotatably connected to the bracket. The locking rod has a slot for engaging the handle. By mounting a bracket on the electromagnetic brake and rotatably connecting the locking rod with the slot to engage the handle, the released state of the electromagnetic brake is maintained. This eliminates the need for continuous manual force on the handle, resulting in a simple structure and convenient operation. However, the above solution also has the following shortcomings: although the brake can be manually released by setting a handle, the handle needs to extend a long distance outward, thus occupying a large space; the above solution installs the bracket 2 used to install the locking rod 3 on the back of the stator, so the stator is prone to interference when installed with the equipment. Utility Model Content

[0003] The purpose of this invention is to provide a manual / automatic integrated electromagnetic brake to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a manual / automatic integrated electromagnetic brake, comprising a stator, an armature disk, a rotor, and an outer flange. The stator and the outer flange are coaxially fixed at their edges by multiple screws. The armature disk is located on the front side of the stator and is slidably connected to the screws. The rotor is located between the armature disk and the outer flange and is provided with a bushing for mounting to the shaft. Multiple coils are embedded on the front side of the stator. The coils are used to attract the armature disk to move backward and separate from the rotor. Multiple axial mounting grooves are provided on the front side of the stator. Springs a are placed in the mounting grooves. Springs a are used to apply a forward thrust to the armature disk so that it contacts the rotor for braking. A forward-extending cylinder is provided at the center of the front side of the outer flange. A pressure plate is sleeved on the cylinder. Multiple push rods are fixedly installed along the circumference of the rear edge of the pressure plate. The push rods axially penetrate the outer flange and are slidably connected to it. When the pressure plate moves backward, the push rods apply a backward thrust to the armature disk. The front end of the cylinder is provided with an external thread and a screw cap is screwed on.

[0005] Preferably, a plurality of friction plates are evenly installed along the circumference on the rear side of the rotor.

[0006] Preferably, a spring b is sleeved on the push rod, and the spring b is located between the pressure plate and the outer flange.

[0007] Preferably, the outer side of the screw cap is provided with a plurality of radially inwardly extending insertion holes along the circumference, the insertion holes being used to insert a handle rod to achieve a lever rotation.

[0008] Compared with the prior art, the advantages of this utility model are: the utility model has a forward-extending cylinder in the middle of the outer flange. By turning the cap at the end of the cylinder, a pushing force can be applied to the pressure plate, so that the push rod pushes the armature plate backward to realize manual release of the brake. Compared with the current handle-type manual operation mechanism, it is beneficial to reduce the size, reduce the installation space requirements, and does not require external force to maintain the released state, making it convenient to use. Attached Figure Description

[0009] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0010] Figure 2 This is a schematic diagram showing the installation of the pressure plate and the outer flange.

[0011] In the diagram: 1. Stator; 2. Armature plate; 3. Rotor; 4. Coil; 5. Spring a; 6. Outer flange; 7. Screw; 8. Cylinder; 9. Pressure plate; 10. Push rod; 11. Spring b; 12. Screw cap; 13. Insertion hole. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] Please see Figure 1 , 2This utility model provides a technical solution: a manual / automatic integrated electromagnetic brake, including a stator 1, an armature disk 2, a rotor 3, and an outer flange 6. The stator 1 and the outer flange 6 are coaxially fixed at the edge by multiple screws 7. The armature disk 2 is located on the front side of the stator 1 and is slidably connected to the screws 7 (the screws 7 are only threaded at the front). The rotor 3 is located between the armature disk 2 and the outer flange 6, and the rotor 3 is provided with a bushing for shaft mounting. The bushing and the armature disk 2 are clearance-fitted. Multiple coils 4 are embedded on the front side of the stator 1. The coils 4 are used to attract the armature disk 2 to move backward and separate from the rotor 3. Multiple axial mounting grooves are provided on the front side of the stator 1. Springs a5 are placed in the mounting grooves. Springs a5 are used to apply a forward thrust to the armature disk 2 to make it contact the rotor 3 for braking. Multiple friction plates are evenly installed along the circumference on the rear side of the rotor 3.

[0014] A cylindrical body 8 extending forward is provided at the center of the front side of the outer flange 6. The cylindrical body 8 is integrally formed with the outer flange 6. A pressure plate 9 is sleeved on the cylindrical body 8. Multiple push rods 10 are fixedly installed along the circumference of the rear side of the pressure plate 9. The push rods 10 axially pass through the outer flange 6 and are slidably connected to it. When the pressure plate 9 moves backward, the push rods 10 apply a backward thrust to the armature plate 2, so that the armature plate 2 can disengage from the rotor 3 and release the braking state. A spring b11 is correspondingly sleeved on the push rod 10. The spring b11 is located between the pressure plate 9 and the outer flange 6. The spring b11 is used to push the pressure plate 9 and the push rod 10 to move outward to achieve reset. The front end of the cylindrical body 8 is provided with an external thread and a cap 12 is screwed on. The outer side of the cap 12 is provided with multiple radially inwardly extending insertion holes 13 along the circumference. The insertion holes 13 are used to insert a handle rod to achieve rotation. When the cap 12 is rotated and moved backward, the pressure plate 9 can be pushed axially backward to release the braking.

[0015] Working principle: When the power is off, the attraction of coil 4 to armature disk 2 disappears, and spring a5 pushes armature disk 2 forward to contact rotor 3 to achieve braking. Rotating the cover 12 and moving it backward causes push rod 10 to move backward synchronously. During this process, when the rear end of push rod 10 contacts armature disk 2, it can push armature disk 2 backward to release the brake and maintain the released state.

[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manual / automatic integrated electromagnetic brake, comprising a stator (1), an armature disc (2), a rotor (3), and an outer flange (6), wherein the stator (1) and the outer flange (6) are coaxially fixed at the edge by multiple screws (7), the armature disc (2) is located on the front side of the stator (1) and is slidably connected to the screws (7), the rotor (3) is located between the armature disc (2) and the outer flange (6), and the rotor (3) is provided with a bushing for mounting to a shaft, multiple coils (4) are embedded on the front side of the stator (1), the coils (4) are used to attract the armature disc (2) to move backward and separate from the rotor (3), and multiple axial mounting grooves are provided on the front side of the stator (1), in which springs a (5) are placed, the springs a (5) are used to apply a forward thrust to the armature disc (2) to make it contact the rotor (3) for braking, characterized in that: The outer flange (6) has a forward-extending cylindrical body (8) at the front center. A pressure plate (9) is sleeved on the cylindrical body (8). Multiple push rods (10) are fixedly installed on the rear side of the pressure plate (9) along the circumference. The push rods (10) axially penetrate the outer flange (6) and slide to it. When the pressure plate (9) moves backward, it applies a backward thrust to the armature plate (2) through the push rods (10). The front end of the cylindrical body (8) is provided with an external thread and screwed with a cap (12).

2. The manual / automatic integrated electromagnetic brake according to claim 1, characterized in that: Multiple friction plates are evenly installed along the circumference on the rear side of the rotor (3).

3. The manual / automatic integrated electromagnetic brake according to claim 1, characterized in that: A spring b (11) is correspondingly sleeved on the push rod (10), and the spring b (11) is located between the pressure plate (9) and the outer flange (6).

4. The manual / automatic integrated electromagnetic brake according to claim 3, characterized in that: The outer side of the screw cap (12) is provided with a plurality of radially inwardly extending insertion holes (13), which are used to insert the handle rod to realize the rotation.

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