一种大型电磁制动器
By combining the pin and the driving component, the operational challenge of large return spring force in large electromagnetic brakes is solved, achieving smooth separation of the armature and friction plate, avoiding mechanical impact, and improving operational convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU XINDELI TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
The return spring used to push the armature in existing large electromagnetic brakes has a large elastic force, making it difficult to operate.
The device employs a combination structure of a pin and a drive component. The axial movement of the pin is achieved by the electric drive shaft of the drive component being fixedly connected to the pin, thereby overcoming the elastic force of the return spring and releasing the brake.
This achieves smooth separation of the armature and friction plate, avoiding mechanical impact caused by the instantaneous loss of braking force in large equipment and improving operational convenience.
Smart Images
Figure CN224515752U_ABST
Abstract
Claims
1. A large electromagnetic brake comprising a housing and a cover, between which are sequentially arranged in an assembly direction an armature and a friction plate, characterized in that, Also includes: A pin, wherein the pin head is located on the side of the armature facing the friction plate, the post portion of the pin passes through the armature, and the end extends beyond the armature; A driving component is disposed on the outside of the housing. The driving component is provided with a driving shaft. The end of the driving shaft is fixedly connected to the end of the cylindrical part of the pin. The driving component is externally powered and adapted to move along its own axis.
2. The large electromagnetic brake of claim 1, wherein, The housing is provided with a guide hole, and the cylindrical part of the pin and the part of the drive shaft are located in the guide hole; In the axial direction of the guide hole, the projection of the guide hole does not coincide with that of the friction pad.
3. The large electromagnetic brake according to claim 1 or 2, characterized in that, The armature is provided with a receiving groove, the opening of the receiving groove is facing the nail head, and a first spring is provided in the receiving groove and arranged coaxially with the pin. One end of the first spring abuts against the bottom wall of the receiving groove, and the other end abuts against the nail head of the pin.
4. The large electromagnetic brake of claim 3, wherein, A washer is also provided between the nail head and the first spring.
5. The large electromagnetic brake of claim 3, wherein, In the braking state, there is a gap between the armature and the nail head.
6. The large electromagnetic brake of claim 1, wherein, The driving component includes: A cover, which is fixedly disposed on the housing; A drive motor is disposed on the inner side wall of the housing, and a first transmission wheel is sleeved on the drive shaft of the drive motor; A lead screw mechanism, wherein the nut assembly of the lead screw mechanism is connected to a second transmission wheel, and the second transmission wheel meshes with the first transmission wheel.
7. The large electromagnetic brake of claim 6, wherein, The lead screw mechanism is a ball screw mechanism.
8. The large electromagnetic brake of claim 6, wherein, A groove is constructed on the side wall of the cover away from the cover. The diameter of the groove is larger than the diameter of the lead screw in the lead screw mechanism, and the lead screw is adapted to move into the groove.
9. The large electromagnetic brake of claim 1, wherein, A fixing lug is provided on the edge of the side panel away from the cover plate in the housing, and the driving member is disposed on the fixing lug.