The invention relates to the technical field of elevator brake fault diagnosis, in particular to an elevator brake spring length monitoring device and a brake fault diagnosis method.The elevator brake spring length monitoring device comprises a mounting rod, the left end of the mounting rod is fixed to a fixed end face, and the right end of the mounting rod penetrates through a brake arm; the mounting rod is sleeved with the spring, the left end of the spring is fixed to the fixed end face, and the right end of the spring is fixed to the brake arm. A capacitor inner electrode is fixed to the position, between the spring and the mounting rod, of the right side face of the fixed end face, a capacitor outer electrode is fixed to the position, between the capacitor inner electrode and the spring, of the left side face of the brake arm, and the capacitor inner electrode and the capacitor outer electrode are partially overlapped so that the capacitor inner electrode and the capacitor outer electrode can form a capacitor. According to the invention, the actual length of the spring in the braking and brake-releasing states can be measured, so that the braking force of the elevator and the brake-releasing force of the electromagnet can be calculated, and the braking fault can be diagnosed.
本发明涉及电梯制动故障诊断技术领域,特别是电梯制动弹簧长度监测装置与制动故障诊断方法,包括左端固定在固定端面的安装杆,所述安装杆的右端穿透制动臂;所述安装杆上套设有所述弹簧,所述弹簧的左端固定在固定端面上,右端固定在制动臂上;所述固定端面的右侧面位于弹簧与安装杆之间固定有电容内电极,所述制动臂的左侧面位于电容内电极与弹簧之间固定有电容外电极,且电容内电极与电容外电极部分重叠,以利于电容内电极与电容外电极构成电容。本发明能够测量出弹簧在制动和松闸状态时的实际长度,从而推算出电梯的制动力和电磁铁松闸力,进而能够对制动故障进行诊断。
Elevator brake spring length monitoring device and brake fault diagnosis method
电梯制动弹簧长度监测装置与制动故障诊断方法
2024-11-01
Patent
Electronic Resource
Chinese
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