| 摘要 |
A hydraulic excavator implement comprises a telescopic boom that consists of two sections, a handle, bucket, drive mechanisms of the boom, handle, bucket. The boom is equipped with an additional telescopic section with mechanism of its drive arranged as two arranged in sequence hydro-cylinders. Additional section is placed outside the existing telescopic section of the boom and has a holder for fixation of the handle and its drive hydro-cylinder. Each of telescopic sections is equipped with support elements as rollers, two at each side. |
