US 12,246,406 B2
Spindle drive tool and method of refilling a lubricant cartridge of an automatic lubrication system using such a tool
Karen Elisa Damhuis, Losser (NL); Sebastien David, Ouderkerk aan de Amstel (NL); Paola Jimenez Moreno, Utrecht (NL); and Sebastian Johannes Kass, Bad Bentheim (DE)
Assigned to AKTIEBOLAGET SKF, Gothenburg (SE)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE)
Filed on Jan. 4, 2022, as Appl. No. 17/567,961.
Claims priority of application No. 102021102119.7 (DE), filed on Jan. 29, 2021.
Prior Publication US 2022/0241921 A1, Aug. 4, 2022
Int. Cl. B23Q 11/12 (2006.01); B23Q 5/10 (2006.01); B23Q 5/20 (2006.01)
CPC B23Q 11/122 (2013.01) [B23Q 5/10 (2013.01); B23Q 5/20 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A spindle drive tool for adjusting a position of a spindle head of a spindle relative to a piston of an electro-mechanical automatic lubrication system, the spindle and piston being connected by complementary screw threads, the spindle drive tool comprising:
a mounting portion having a bearing surface at a first end, the bearing surface being configured to contact the piston and having a spindle head inlet, the spindle head inlet opening into a first cavity extending axially inside the mounting portion, the first cavity having a first end at the spindle head inlet and a second end axially spaced from the first end and a cross section configured to couple with the spindle head, the second end of the first cavity opening into a second cavity, the second cavity being coaxially to the first cavity and having a larger cross section than the first cavity; and
a coupling portion for coupling the mounting portion to a rotatable drive,
wherein the spindle has an axis of rotation,
wherein the mounting portion comprises an axial centerline and a second end axially spaced from the first end,
wherein the first cavity is configured to permit axial movement of the spindle head in the first cavity relative to the mounting portion and to substantially prevent rotation of the spindle head in the first cavity relative to the mounting portion about the axis of rotation of the spindle head,
wherein the second cavity is configured to permit rotation of the spindle head in the second cavity relative to the mounting portion, and
wherein the coupling portion is located at the second end of the mounting portion.