FIELD: machine building.
SUBSTANCE: digital hydraulic control valve comprises body, slide valve, side covers, rotary electric driver arranged perpendicular to slide valve axis and engaged therewith via cam, slide valve control device and mechanism to return slide valve to neutral position at switched-off driver. Said electric driver is composed by digital stepped motor. Said mechanism to return slide valve to neutral position comprises precompressed centering spring fitted in threaded sleeve of rear side cover and retained by lock ring between two washers. Pull screw screwed in slide valve threaded hole extends through central opening of said washers and is locked by friction ring fitted in screw groove to interact with slide valve threaded hole lead section.
EFFECT: higher reliability.
2 cl, 1 dwg
| Title | Year | Author | Number |
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SU792002A1 |
