Plate type brake

Abstract

The invention relates to a plate type brake. The plate type brake comprises an electromagnetic iron core, supporting blocks, brake springs, a brake block, an armature iron and guide columns, wherein the electromagnetic iron core is fixed to the supporting blocks; an electromagnetic coil is arranged on the electromagnetic core; one ends of the brake springs are connected with the electromagnetic core, and the other ends of the brake springs are connected with the armature iron; the brake block is fixed to the armature iron; a mounting platform is arranged on the outer side of the armature iron, and is protruded outwards opposite to the electromagnetic core; guide holes are formed in the mounting platform in the sliding direction of the armature iron; and each guide column can be in sliding connection with the corresponding guide hole. According to the plate type brake disclosed by the invention, parts and components of the plate type brake are low in accuracy requirement for the dimension and the position, and are easy to process, easy to assemble, and convenient to maintain.

Description

technical field [0001] The invention relates to the technical field of brakes, in particular to a plate brake. Background technique [0002] The brake is one of the most important safety components of an elevator. The commonly used types of brakes are drum brakes, disc brakes, disc brakes and plate brakes. Among them, plate brakes are widely used in the elevator industry due to their simple structure and low cost. The plate brake is a brake that is pressed against the brake wheel by the brake block to achieve braking. In view of the miniaturization and low noise design requirements of the plate brake, since the movement stroke of the brake block is very small (generally between 0.3mm and 0.5mm), the guide precision of the brake block is extremely high. If the guide precision of the brake block is insufficient, it is easy to get stuck and lead to brake failure, causing safety accidents. However, the extremely high guide precision requirement means that the guide parts of ...

AI Technical Summary

Problems solved by technology

If the guiding precision of the brake block is not enough, it is easy to get stuck and lead to brake failure, causing safety accidents

However, the extremely high guide precision requirements mean that the guide parts of the plate brake need to have extremely high dimensional position accuracy, which greatly increases the difficulty of processing and assembling the plate brake

In addition, the guide parts will be worn to a certain extent after long-term operation, so regular inspection and cleaning are required, and new guide parts should be replaced if necessary

When inspecting and cleaning the traditional plate brake, it is necessary to remove the plate brake as a whole, which is very difficult to operate and inconvenient to maintain

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