| 摘要 |
A hydraulic hammer equipped with a crushing tool fastened at the cylinder outlet, and a ram which fulfils at the same time the functions of a differential piston and a distributing slider, whereas the working chamber of the cylinder is hydraulically connected with the distributor, and the distributing part of the cylinder is connected by means of a duct with the said distributor, characterised in that a gland (9) is installed in the duct (8) connecting the distributor (4) chamber (7) with the supply hose (10) through the ram distributing slide (1) and through the controlling branch (14).<IMAGE>
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