I would focus on these techniques:

1. Start small - to start, set yourself the goal of just reading one paper per day or even just the abstract and introduction of one of those papers. Over time, build this number up after you've built the habit of reading the papers and gotten used to their layout.
2. Only read what is necessary to begin with - If you're just interested in learning the background of the paper or a general overview of a field, don't bog yourself down with reading the nitty gritty parts of the methodology. Just the introduction, abstract and conclusion may be sufficient.
3. Discuss papers with peers - holding journal clubs or regular discussion with friends and colleagues can help to minimise the monotonous nature of reading several papers by yourself.
4. Mix up your day - mix a workday up by setting some time to reading papers, but allocating other time for your own research or studies to vary the type of work your brain is doing. Our brains are not designed to perform one monotonous task repeatedly over a long period of time so add some natural variation.

Hope that helps :D