| 摘要 |
The present invention relates to a bolt structure for a rock drill with an improved structure, capable of preventing durability of a long bolt from being reduced as a distortion load due to a fastening force with a fixing nut is transmitted to the long bolt when the long bolt of the rock drill is fastened. According to the present invention, the bolt structure for the rock drill comprises: a front head arranged on a lower part of a cylinder; a head cap arranged on an upper part of the cylinder; a long bolt connecting the front head, the cylinder, and the head cap, wherein one end is fastened to a connection unit arranged on the front head, and the fixing nut and a washer member fastened to an other end exposed to the outside; and a fixing unit to prevent the long bolt from rotating, arranged in the head cap and the long bolt. |
