| 摘要 |
The present invention relates to a hydraulic breaker comprising: a back head; a cylinder; a front head; a chisel; a piston; and a breaker main body. The back head has a gas chamber positioned inside. The cylinder is arranged on a lower part of the back head and has a hydraulic passage and a hydraulic space formed therein. The front head is arranged on a lower part of the cylinder. The chisel is installed on the interior of the front head. The piston is installed on the cylinder to be reciprocally moved to hit the chisel. The breaker main body has a plurality of through-bolts integrally connecting the back head, the cylinder, and the front head. A control valve is included in the back head of the breaker main body to supply oil pressure to the hydraulic passage and the hydraulic space and block the oil pressure. According to the present invention, the control valve can be simply and quickly replaced, thereby improving productivity. |
