Low-heating power-off brake

• Main Authors: JIANG XIANG, GU BOZHONG, YUE ZHONGYU, ZHAI LIUBIN, YE YU, ZHAO TE, HE XIN
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a low-heating power-off brake. The power-off brake comprises an electromagnet, a base, a steel ball, a brake spring, a rear armature, a reset spring, a thrust disc, a friction disc and a target shaft. In the power-on standby state, the electromagnet enables the rear armature to move towards the base, the rear armature pushes the steel ball to move towards the center of the base along the guide hole, when the lower end face of the restraining section of the rear armature is lower than the center face of the steel ball, outward movement of the steel ball is locked by the restraining section of the rear armature, the steel ball is inwards attached to the thrust disc, and downward movement of the thrust disc is blocked. During power-off braking, the rear armature is far away from the base under the elastic force effect of the reset spring, the lower end face of the restraining section of the rear armature is higher than the axis of the guide hole, the steel ball moves outwards along the gu