Damping and denoising device for elevator brake

Abstract

The invention discloses a damping and denoising device for an elevator brake. The elevator brake comprises a first brake disc and a second brake disc which are matched with each other, and the damping and denoising device comprises a damping member mounted in the first brake disc in an embedded manner and abutted against the second brake disc, an adjusting screw mounted on the first brake disc, a first buffering mechanism connected between the damping member and the adjusting screw in an abutted manner, and a second buffering mechanism connected between the first brake disc and the damping member in an abutted manner. The buffering mechanisms of two stages are axially arranged sequentially, so that damping and denoising of the brake are realized, damping and denoising effect is guaranteed, potential safety hazards caused by the fact that braking cannot be realized normally are eliminated, and convenience is brought to normal performing of daily maintenance.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a vibration and noise reduction device for elevator brakes. Background technique [0002] At present, with the continuous development of elevator traction machine technology, the brake used to ensure the safety of elevator traction machine is becoming more and more important. The performance of the brake directly or indirectly affects the market competitiveness of traction machine products. [0003] According to 4.2.2.2 of the national standard "GB / T24478-2009 Elevator Traction Machine", the rated braking torque of the traction machine should be agreed with the user of the traction machine according to the provisions of 12.4.2.1 in GB / T7588-2003, or the rated torque The torque is converted to 2.5 times the torque on the brake wheel (disc); at the same time, 4.2.3.3 in "GB / T24478-2009 Elevator Traction Machine" requires that the brake noise should not exceed the rated torque of ...

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Problems solved by technology

[0006] There are many problems in the actual use of this utility model. First of all, during the use of the brake, the elastic damping assembly 19 in this utility model will have stress concentration due to repeated impacts of electromagnetic force, which will easily lead to fatigue fracture, resulting in The damping device fails; secondly, the elastic damping assembly 19 disclosed in this utility model is very likely to form a rigid part under the action of the screw 18. Once the force value is greater than the electromagnetic force of the brake, the brake will not be able to engage. It is only the friction between the friction plate and the brake wheel (disc). In severe cases, it may cause the overall failure of the brake product; finally, the brake damping device disclosed in this utility model is located between the brake moving plate 12a and the static plate 10a. When the elastic damping component 19 needs to be replaced after fatigue fracture, the brake moving plate 12a and static plate 10a must be fully opened, which is cumbersome to operate and is not conducive to site maintenance

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