The invention discloses a non-abrasion air buffering device for an elevator brake. The non-abrasion air buffering device is used for buffering between an electromagnet and an armature in a brake and replacing a damping pad. The non-abrasion air buffering device comprises a compression plug, a check valve and a sealing locking plug. The armature is provided with a horizontal groove. The compression plug comprises a plug cap, a plug rod and a first returning spring. One end of the plug rod extends into the horizontal groove, the other end of the horizontal groove is provided with a second groove, and the check valve and the sealing locking plug are sequentially arranged in the second groove. A cavity is formed between the check valve and the plug rod and the horizontal groove, the center of the sealing locking plug is provided with an air hole communicated with the cavity, and the opening and closing of the air hole are controlled through the check valve. The first returning spring sleeves the plug rod on the outer side of the cavity, and the returning elasticity of the first returning spring is larger than the opening force of the check valve. Air in the cavity is utilized genuinely to perform damping, the damping effect is good, the reliability is high, and after long-time use, the non-abrasion air buffering device can has a good damping function and is long in service life.
Non-abrasion air buffering device for elevator brake
2015-12-30
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |