Detection device for residual thickness of brake pad

Abstract

The invention discloses a detection device for residual thickness of a brake pad, and relates to the technical field of detection devices. The detection device comprises a mounting shell, a driving element and a distance measuring rod, the outer wall of one side of the mounting shell is used for being mounted on a back plate of the brake pad, an extending hole is formed in the side wall, used for being close to a brake disc, of the mounting shell, the driving element is mounted in the mounting shell, an output shaft of the driving element is in transmission connection with one end of the distance measuring rod, and the driving element can drive the distance measuring rod to extend out of the mounting shell through the extending hole until the end of the distance measuring rod abuts against the brake disc. The detection device for the residual thickness of the brake pad can carry out in-situ detection on the residual thickness of the brake pad, and the detection efficiency is high.

Description

technical field [0001] The invention relates to the technical field of detection devices, in particular to a detection device for the remaining thickness of a brake pad. Background technique [0002] The basic braking system of the train plays an indispensable role in the entire braking process. Especially in the case of train electric braking failure, the basic braking will become the only braking method. According to relevant standards, the brake pads If the remaining thickness reaches the limit and continues to be used, the foundation brake may fail, and the safe operation of the train cannot be guaranteed. Therefore, the "remaining thickness after brake pad braking" is a very important indicator for evaluating whether the foundation brake performance of the train can work normally. [0003] The current remaining thickness detection of the brake pads can only be performed by removing the brake pads during maintenance, then manually measuring, and finally reinstalling. Al...

AI Technical Summary

Problems solved by technology

[0002] The basic braking system of the train plays an indispensable role in the whole braking process, especially when the electric braking of the train fails, the basic braking will As the only braking method, according to the relevant standards, if the remaining thickness of the brake pad reaches the limit and continues to be used, the foundation brake may fail, and the safe operation of the train cannot be guaranteed. Therefore, the "residual thickness of the brake pad after braking" is the basis for evaluating the train A very important indicator of whether the braking performance can work normally

[0003]The current remaining thickness detection of brake pads can only be done by removing the brake pads during maintenance, then manually measuring, and finally reinstalling

Although this method can obtain more accurate result data of the remaining thickness of the brake pad, it obviously requires a huge amount of manpower, material resources, time and other related resources, and it is necessary to control the size of the pretightening force again when reinstalling, and it is necessary to verify the performance. Whether the brake disc is successfully clamped for braking, and secondly, the installation process will reduce the life of the bolts used to a certain extent, thereby reducing the service life of the entire brake pad

In addition, according to relevant reports, there is still no effective detection method for whether each brake pad is exactly fitted to the brake disc during the braking process of the train when it reaches the foundation brake, and it cannot be repaired in time, which aggravates the The wear of the rest of the brake pads is reduced, and the temperature rise of these brake pads and brake discs is also affected, which eventually leads to the inability to replace the brake pads and brake discs in a unified manner, which affects the safety of the vehicle.

And when some brake pads fail to fit the brake disc, the brake air pressure of the cylinder is greatly wasted

Images