| 摘要 |
<p>A grease pumping assembly includes a drum (20) for grease and a pump disposed in a base (10) to receive grease through a central hole (201) in the bottom (200) of the drum. The base (10) has a recess (11) communicating with the central hole (201) of the drum (20) and a further recess for a drive motor (30). A bottom plate disposed on the underside of the base (10) encloses a reduction device (40) driven by a pinion (31) of the motor (30). The reduction device (40) includes a rotary eccentric pin (411) which projects into a hole (12) of the base (10) where it is coupled to a pushing rod (43). The pushing rod (43) is movably disposed in a transverse bore (13) between the hole (12) and the recess (11). Grease drops into the recess (11) via the central hole (201) and enters a pumping chamber via a passage in the pushing rod controlled by a valve and is pumped by the pushing rod (43) to a grease gun.</p> |
