Manual brake release device of disc brake

Abstract

The invention discloses a manual brake release device of a disc brake, comprising a brake release handle 1, four brake release screw rods 2, magnet yokes 3 and armatures 4, four brake release screw rods 2 respectively penetrates the magnet yokes 3 and the armatures 4 on an inner brake and an outer brake, the inner ends of the brake release screw rods 2 are located in the counter bore of the armatures 4 by screw nuts, the manual brake release device is characterized in that: the manual brake release device further comprises two arc brake release bars 6, a connecting rod 7, a drag rope 8, a handle supporting point 9, two arc brake release bars 6 are respectively covered on the magnet yokes 3 of the inner brake and the outer brake, flat rotating plates 61 are arranged at two ends of the arc brake release bars 6, the flat rotating plates 61 are connected between the screw rod heads of the brake release bars 6 and the magnet yokes 3, the connecting rod 7 is connected with two arc brake release bars 6, the brake release handle 1 and the handle supporting point 9 are arranged at the top part of a machine shell, and two ends of the drag rope 8 are respectively connected with the connecting rod 7 and the brake release handle 1; the manual brake release device has the advantages that the structure is simple, the processing and assembling are easy, the device is amplified in two stage, and the brake release is easy and labor-saving.

Description

Technical field: [0001] The invention belongs to the elevator technology, and relates to a disc brake release device on an elevator traction machine, in particular to a manual brake release device for the disc brake. Background technique: [0002] The front end of the rotating shaft of the elevator traction machine is equipped with a traction sheave wound with a traction wire rope. The two ends of the wire rope are respectively hung with a car and a counterweight. Two sets of brakes with the same structure are installed at the rear end of the rotating shaft. The friction disc is set on the rotating shaft and can rotate synchronously with the rotating shaft. The center hole of the armature and the yoke and the rotating shaft are in clearance fit. The yoke is fixed on the machine cover of the traction machine through a screw. The armature The screw hole on the yoke and the screw are in clearance fit, that is, the armature can move axially on the screw, and a return spring is i...

AI Technical Summary

Problems solved by technology

Although the above-mentioned manual brake release device is compact in structure and small in size and can play the role of brake release, it has the following defects: 1. Because the manual brake release device is installed at the rear end of the traction machine, the manual brake release operator is performing the brake release operation. At the same time, because the movement of the traction wire rope at the front end cannot be seen, it is impossible to confirm whether the brake has been opened, so there may be a delay in rescue; 2. Because the brake release handle is short and the spring force to overcome is relatively large, the operation is laborious; 3. 1. Since the lower end of the brake release handle is provided with an inclined plane groove and the yoke is provided with a steel ball dimple, the processing and assembly are more complicated; 4. The left and right hands of the operator respectively hold the left and right handles and release the brake at the same time. Different, there are differences in the sequence of force, so the synchronization of brake release is poor, and it cannot guarantee that the brakes are fully opened at the same time

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