Railway vehicle buffer for reducing longitudinal impact of train

The invention railway vehicle buffer capable of reducing the longitudinal impact of the train comprises a first main buffer cylinder, a second main buffer cylinder, a buffer frame main body, a connecting frame and a nut, wherein the second main buffer cylinder is installed at one end of the first main buffer cylinder, and the buffer frame main body is installed at the end, away from the first mainbuffer cylinder, of the second main buffer cylinder; elastic rubber is installed on the two sides of the interior of the buffering frame body, a first auxiliary buffering cylinder is installed on theouter wall of one side of the buffering frame body, a second auxiliary buffering cylinder is installed at the end, away from the buffering frame body, of the first auxiliary buffering cylinder, and alimiting structure is arranged at the end, away from the first auxiliary buffering cylinder, of the second auxiliary buffering cylinder. According to the buffer, convenience of the buffer during installation and maintenance is