| 摘要 |
FIELD: mobile screw pumps with self-contained detachable drives, such as electric drills or screwdrivers. ^ SUBSTANCE: proposed pump has housing with centrifugal chamber provided with outlet branch pipe, worm and centrifugal disc mounted in centrifugal chamber. Outlet part of worm is provided with one helical blade rigidly connected with blade of inlet part of worm, thus forming single blade provided with single bead secured to outer perimeter of working surface of single blade at angle of 90°; its height is equal to 5-25% of worm pitch relative to working surface. End face of blade forms circular clearance together with centrifugal disc whose width is lesser than inner width of centrifugal chamber. End part of centrifugal disc on side of helical blade is provided with radial or shaped ribs engageable with shaft mounted in housing by means of revolving supports. Face part of shaft free from revolving supports is connected with outlet end of tubular coupling whose inlet end is provided with Morse cone for engagement with tail-piece of electric drill or screwdriver; its part of body is detachably inserted in part of pump where revolving supports are mounted for worm. ^ EFFECT: lightened construction of pump easily engageable with electric or pneumatic tools. ^ 7 cl, 3 dwg |
