Contact line compensation device

The utility model relates to a contact line compensation device which comprises a first long-strip-shaped copper slide way and a second long-strip-shaped copper slide way which are symmetrically arranged in parallel, and a first clamp assembly and a second clamp assembly are arranged at the two ends above the symmetry axis of the copper slide ways respectively. The clamp assembly comprises a fastening bolt horizontally perpendicular to the copper slide way, a first clamp block and a second clamp block, wherein the first clamp block and the second clamp block are arranged opposite to each other with the same symmetry axis as the copper slide way. And the first clamp block and the second clamp block are connected through a fastening bolt and are respectively connected with the corresponding copper slideways through a first connecting plate and a second connecting plate which are longitudinally vertical to the copper slideways. The device has the characteristics of saving resources and reducing cost, and has the