When I was a PhD student, I asked everyone about this, but I could find no role model. Almost every male professor had a stay-at-home wife who cared for the kids, and female professors often had no kids. Even with my fellow PhD students who became parents, it was always the mothers who took extended maternity leave, and the fathers who advanced their careers.
(I eventually gave up the PhD programme; as a self-employed software developer I now have the freedom to take as much time for my kids as I want, and I can take an equal part in caring for them.)