The present invention relates to a low-noise breaker of a construction equipment crushing work device, instead of the flat wear plate used in the conventional structure, a plurality of concave-convex portions are formed to form a side vibration cushion (18) (18) By providing '19' and '19' in the space between the main body 14 and the frame 11, the side vibration cushions 18, 18 'and 19 are generated by the vibration and shock generated during the breaker operation. 19 'and the upper and lower vibration suppression cushions 16 and 17 to absorb evenly, and in particular, the vibrations introduced into the upper and lower portions can be absorbed in the vertical and horizontal directions. You can get excellent vibration damping and sound absorption that you can't expect.;In addition, in the present invention, since the main body 14 is configured to be assembled by opening the cover 12 located on the side without assembling through the frame 11, the main body 14 may be assembled or replaced. It is possible to work even if it is not a designated place without special equipment because it only needs to enter the thickness of frame (11) without having to lift it as high as it is, and it can greatly reduce safety accident rate and increase the operation rate of breaker. .
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