| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to machine building and can be used in high-precision high-speed tracking, guidance drives. In drive adjustable axial-piston pump is made with piston cam plate and hydrostatic supports, in cylinder block of which pistons are installed with spherical heads, in each of which there is an axial hole of a throttle and additional channels extending to working part of spherical head, on which is oppositely installed a hydrostatic support with a central intake chamber connected by additional holes with annular discharge chamber, surrounded by sealing belts extending to drain chamber, hydrostatic support end interacts with a thrust disc, and on working part of spherical piston head there is an annular groove, which joins additional channels of piston head, thus forming on spherical piston head a belt to create positive covering with intake chamber of hydrostatic support.EFFECT: technical result is higher accuracy of guidance.1 cl, 3 dwg |
