| 摘要 |
A soil-cultivating machine with the knives, entering into soil periodically, which comprises a reducer, at the ends of a driven shaft of which figured elements are rigidly fixed. Said elements are mounted in such a manner as to allow joint rotating with the driven shaft and contact with the upper ends of spring-loaded rods, and on the lower ends of the spring-loaded rods a fastening element with toothed knives is mounted. The knives are mounted in such a manner as to allow swinging movement in correspondence with pressing-stretching of the springs. The figured elements are made as crosspieces, the two opposite ends of which are made as elongated ones, and the fastening element with toothed knives is made as a pipe. |
