| 摘要 |
A drive of quill feeding type is made in the form of a hydraulic cylinder installed into a housing, which stock is a quill with spindle placed in it, which is moved in the openings of the front and rear cover of hydraulic cylinder. In the front and rear covers of hydraulic cylinder multisector hydrostatic supports of quill are located, which are in pairs connected together and connected with the switch, the number of positions of which corresponds to the number of hydrostatic supports in the covers. |
