| 摘要 |
<p>Pneumatic, submersible drilling machine consists of a working roll (1), piston (2), upper cylinder cover (4) and drill bit holder. A frontal side channel (17) situated in face of an upper workspace (18) of the working roll (1) being connected to an upper feeding channel (16) and to a back side channel (19) with space for a container (21), which is situated in the upper cylinder cover (4) and a frontal feeding channel (24) connected via an axial channel (23) of an axial pivot (22) and via a back feed ing channel (25) to the said space for a container (21), axially terminate in the upper workspace (18) of the working roll (1) a compression space, which is defined by the inner side of the working roll (1), by the frontal face (26) of the upper cylinder cover (4) and by the outer surface of the axial pivot (22). The upper cylinder cover (4) with the axial pivot (22) and built-in space for the container (21) constitute, preferably, one assembling unit, in which a water valve is built-in.</p> |
