| 摘要 |
A unit for additional top cutting with an active cutter consists of a frame, on which a comb feeler and a cutter are mounted with the aid of a parallelogram linkage suspension. It is equipped with a cutter drive assembly, which is rigidly fixed to a supporting plate, and with an additional draw bar, which is made as a rod, which is hingedly fixed to the feeler by one end, and the other end is mounted in such a manner as to allow vertical moving in the pipe, in which an electrical sensor, rigidly fixed to the free end of a compression spring, is arranged. The compression spring is rigidly fixed to the pipe by the other end, said pipe is hingedly connected with the upper draw bar of the parallelogram linkage suspension. |
