No, not exactly... but many people do make their hubs and their blogs work together by using links. If you have already published a piece online, and try to repost the same article as a hub, you will be penalized for duplicate content ,even though it is your original writing and not copied from someone else.
HubPages wants to see, (in fact, requires) original content. Try making a hub that is related to the subject of your blog. You can mention your blog in your profile and even post an appropriate link to it in your hub. (Don't overdo.)
Read the FAQ's, the Learning Center, and even some of the "help" forums -- then give it a try.
Many , if not most , of us learned by doing. Good luck. and welcome to HP.