You can use Grab++ to grab the video url then download it.
Now I introduce you how to down Vimeo using Grab++.

Download vimeo video using Grab++

Step 1: 
Run Orbit Downloader’s Grab++ first:

 

 

 

 

 

 

 

 

Step 2:
Then play the vimeo video. When the video is played, its url is grabbed by Grab++:.

 

 

 

 

 

 

 

 

 

 

Step 3:
Check the video in Grab++ then click ‘Download’ button. The video will be downloaded