$4$ exercise

Find Your scheme according to Table No$.3$ and pictures. Redraw the scheme according to the requirements.

Describe in detail the operating principles of the given power drive: working stroke without the load, with load,

return stroke $($short description is given$).$

Table No$.3.$

$1$ scheme

The scheme of the hydraulic power drive of the painting robot manipulator is given $($Fig$.1).$ The hydraulic

motor HV$1\mathrm{.}0$ of limited turning angle provides rotational motion of the manipulator platform on which the

paint head is mounted. Hydraulic cylinder HC$2\mathrm{.}0$ moves the paint head in the vertical direction. Both motions

of the manipulator are performed independently of each other and are controlled by the directional control

valves SK$1\mathrm{.}1$ and SK$2\mathrm{.}1.$