| 摘要 |
An antiphase hydraulic hammer contains a cylindrical housing, in which internal and female heads are coaxially located, the chamber is filled with working fluid, external surface of the stock of internal head and internal surface of female head form two working chambers divided by protrusion of female head, in which the openings with annular grooves are made, moreover openings are divided by protrusion in pairs in such a way that symmetrical openings relative to protrusion are working openings, and extreme openings are additional controlling openings, moreover in the working mains, which connect the bistable element with the openings of housing of hydraulic hammer the check valves are mounted, and through the hydraulic lock the outlets from these mains are connected with the discharge. In this case hydraulic lock is made from two spring-loaded valves, between which a piston with two pushers is located, mains connect hydraulic hammer to the cavities, which are located from two sides of valve, and the drain line is, in turn, connected to the chamber formed by valve and cavity, which is located beyond the working surface of valve.
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