| 摘要 |
A covering roller of a sowing drill with the flexible working surface consists of a rim, connected with a hub with the aid of spokes, which are made as resilient ones. The covering roller is made as a tape of a varying profile, put onto the metal rollers, which are mounted on joint axles by pairs, and the working state of the tape is provided by a stretching mechanism, and in the middle of the tape a hollow of the radial profile is made. |
