Brake disc and motor rotor integrated mechanism
By integrating the brake disc with the motor rotor, and using permanent magnets and coils to control the relative movement of the armature and brake pads, the problem of increased axial length in existing technologies is solved, enabling the motor to have braking function without increasing its length, thus improving power density.
Patent Information
- Application Number
- CN202520384610.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-07
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-06
AI Technical Summary
When adding braking functions, existing rotary motors increase axial length and weight, making them unsuitable for applications with limited space or high power density requirements.
It adopts an integrated mechanism of brake disc and motor rotor, with the motor rotor and brake stator set coaxially. The braking is achieved by controlling the separation and contact of armature and brake pad through the magnetic field generated by permanent magnet and coil. The design of bearing and spring is combined to save space.
This technology enables the motor to rotate normally and perform braking functions without increasing its axial length, thereby improving the motor's power density.
Smart Images
Figure CN223928176U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to brake disc and motor rotor integrated mechanism. BACKGROUND
[0002] If the existing rotary motor needs to increase the brake function, mostly axial series connection brake, brake disc installs on the motor shaft and rotates with the rotor, thereby causing the long axial length and the heavy weight of the whole machine. In the application field with space or higher power density requirement, it is obviously unable to meet the use requirement. SUMMARY
[0003] The utility model solves the technical problem that the utility model is to overcome the above-mentioned defects of prior art and provide brake disc and motor rotor integrated mechanism to realize the brake function.
[0004] The utility model adopts the technical scheme that the above technical problem is solved:
[0005] A brake disc and motor rotor integrated mechanism, including motor stator, motor rotor and brake stator, motor stator, motor rotor and brake stator are coaxial arrangement, the motor rotor and motor stator adopt axial magnetic circuit, and the motor rotor is disc structure, and the iron core is close to motor stator side, and is uniformly distributed with permanent magnet, and the other side installs brake pad, and brake stator is equipped with coil armature, coil and compression spring, and normally, coil generates magnetic field after electrification, and armature compression spring is made under the action of magnetic field suction force, and armature and brake pad are axially separated, and the motor rotor rotates normally, when the coil in brake stator loses electricity, because the armature loses the magnetic field suction force, the compressed spring resets, and the armature and brake pad are axially attached and are rubbed and are braked.
[0006] Better, the magnetic yoke of brake stator component is equipped with bearing mounting hole, and the bearing is placed in it, and the additional bearing mounting space is saved.
[0007] Better, the magnetic yoke of brake stator component is equipped with spring mounting hole, and the compression spring is placed in it, and the compression spring is better limited.
[0008] Compared with the prior art, the utility model has the advantages that because the motor rotor has normal rotation function, and because brake pad is installed, and cooperates with brake stator, and can brake, therefore, it can realize brake function when the motor power is output, therefore, the axial length can be shortened. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the structure schematic view of brake disc and motor rotor integrated mechanism according to the utility model embodiment.
[0010] Figure 2 It is the three-dimensional schematic view of brake disc and motor rotor integrated mechanism according to the utility model embodiment. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0012] like Figure 1 , 2 As shown, a brake disc and motor rotor integrated mechanism includes a brake stator component 1, a motor rotor component 2, a motor stator component 3, and fasteners 4. The motor stator, motor rotor, and brake stator are coaxially arranged and fixed together by the fasteners 4. The disc-shaped iron core 202 has both the function of a motor rotor and the function of a brake disc.
[0013] The motor rotor component 2 and the motor stator component 3 adopt an axial magnetic circuit. The core 202 of the motor rotor component 2 has a disc-shaped structure. Permanent magnets 204 are evenly distributed on the side of the core 202 near the motor stator, and brake pads 203 are installed on the other side.
[0014] When the coil 102 in the stator component 1 of the brake is energized, it generates a magnetic field. Under the attraction of the magnetic field, the armature 106 compresses the spring 105, and the armature 106 separates axially from the brake pad 203, allowing the motor rotor component to rotate normally. When the coil 102 in the stator component 1 of the brake is de-energized, the armature 106 loses the magnetic attraction, and the compressed spring 105 returns to its original position, pushing the armature 106 to axially engage with the brake pad 203, thereby achieving the friction braking function.
[0015] The magnetic yoke 101 of the brake stator component is provided with bearing mounting holes, which can be used to install bearings 104, saving additional bearing installation space.
[0016] The magnetic yoke 101 of the brake stator component is provided with a spring 105 mounting hole, in which the spring 105 is placed to better limit the spring.
Claims
1. A brake disc and motor rotor integrated mechanism, characterized by: The application relates to a motor brake, which comprises a motor stator, a motor rotor and a brake stator, the motor stator, the motor rotor and the brake stator are coaxially arranged, the motor rotor and the motor stator adopt an axial magnetic circuit, the motor rotor is in a disc structure, a magnetic core is close to the motor stator side, permanent magnets are uniformly distributed, a brake pad is arranged on the other side, the brake stator is provided with a coil armature, a coil and a compression spring, in normal time, the coil generates a magnetic field after being electrified, the armature compresses the spring under the action of the magnetic field suction force, the armature is axially separated from the brake pad, and the motor rotor rotates normally; when the coil in the brake stator loses electricity, the armature loses the magnetic field suction force, the compressed spring resets, the armature is axially attached to the brake pad and frictionally braked.
2. The brake disc and motor rotor integrated mechanism of claim 1, wherein: The magnetic yoke of the brake stator component is provided with a bearing mounting hole, and the bearing is arranged in the bearing mounting hole.
3. The brake disc and electric motor rotor integrated mechanism according to claim 1 or 2, characterized by: The magnetic yoke of the brake stator component is provided with a spring mounting hole, and the compression spring is arranged in the spring mounting hole.