Hydraulic disc brake clearance early warning device

Abstract

The invention provides a hydraulic disc brake clearance early warning device which not only can monitor a brake clearance in real time but also can early warn in an over time limit mode to the brake clearance, and therefore operating is convenient, safe and reliable. According to the hydraulic disk brake clearance early warning device, a sensor and a rotary drum brake disc contact, a brake shoe is arranged outside the brake disk, a movable brake shoe seat is arranged on the outer side of the brake shoe, a fixed brake seat is arranged on the outer side of the movable brake shoe seat, the sensor contacts with the movable brake shoe seat, and the sensor is connected with a programmable logic controller (PLC) processor 8 through a signal wire 7. The hydraulic disc brake clearance early warning device has the advantages of being simple in structure and scientific in design, not only is real-time monitoring of the brake clearance achieved, but also over time limit early warning to the brake clearance can be achieved, operating is simple, early warning to small automobile sliding accidents is achieved, and accidents are avoided.

Description

technical field [0001] The invention relates to the field of safe operation of elevators, in particular to a hydraulic disc brake gap early warning device. Background technique [0002] For hoist brake shoe clearance protection, the trigger electrode is generally fixed on the brake. When the new brake shoe is replaced and the brake is applied to the braking position, the distance between the contact point of the trigger electrode and the roller is set to 2mm. When the brake shoe wears more than 2mm, the trigger The electrode is in contact with the drum, and the winch displays a fault alarm. It can only detect the wear of the brake shoe, but cannot completely monitor and monitor the brake shoe gap after the brake is released, and it is prone to malfunction and poor stability. Contents of the invention [0003] The invention provides a hydraulic disc brake gap early warning device, which can not only monitor the brake gap in real time, but also perform early warning when the...

AI Technical Summary

Problems solved by technology

[0002] For hoist brake shoe clearance protection, the trigger electrode is generally fixed on the brake. When the new brake shoe is replaced and the brake is applied to the braking position, the distance between the contact point of the trigger electrode and the roller is set to 2mm. When the brake shoe wears more than 2mm, the trigger The electrode is in contact with the drum, and the winch displays a fault alarm. It can only detect the wear of the brake shoe, but cannot completely monitor the gap of the brake shoe after the brake is released, and it is prone to malfunction and poor stability.

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