DEVICE FOR RECIPROCATING A PLUNGER OR THE LIKE
A device for reciprocating a plunger forming e.g. part of a pump comprises: an electric motor (30), a drive shaft (2) rotated by the electric motor (3); an inner race (12) fixedly mounted on the drive shaft (2), the inner race having an inner race track (13) which is formed on the outer cylindrical...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | A device for reciprocating a plunger forming e.g. part of a pump comprises: an electric motor (30), a drive shaft (2) rotated by the electric motor (3); an inner race (12) fixedly mounted on the drive shaft (2), the inner race having an inner race track (13) which is formed on the outer cylindrical surface of the inner race and is not co-axial with its inner cylindrical surface and the drive shaft (2); an outer race (15) provided around the inner race, the outer race (15) having an outer race track (14) which is co-axial with its inner race track (13); a plurality of rolling members (16) provided between the outer and inner race tracks (13, 14); and a plunger member (7) movably guided in an axial direction thereof, one end of the plunger member being elastically abutted against the outer cylindrical surface (15a) of the outer race. |
---|