| 摘要 |
<p>Hydraulic hammer device for excavators, comprising at least a spike (1) and an energy accumulator (4), in which the energy accumulator (4) is located on the longitudinal shaft of the spike (1) and securely connected to said spike (1), and in which said shaft is on that which attacks the ground between the retracted and deployed positions of the spike (1), and which is characterized in that it comprises a cylinder (2) or two cylinders (2, 3) securely connected to the spike (1) inside same.</p> |
