1 a primary spring assemble apparatus for railroad car

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a primary spring assembling apparatus for a railway car, and more particularly, to a primary spring assembling apparatus for a railway car which assures rapid and easy assembly with design pressure. A primary spring assembly for a railway car comprising a mounting portion, a moving portion, and a pressing portion, wherein the mounting portion has a lower mount projection receiving hole for firmly mounting the lower mount of the primary spring at the center of the upper surface, A slider slidably moving to assemble the primary spring before assembling, the slider being mounted on a mounting portion of the mounting portion, and a piston or a piston, which is supplied or discharged from a hydraulic pump to move the slider, Wherein the pressurizing portion includes a pressurizing block coupled to a distal end of the elongating and contracting device for elastically expanding and contracting the primary spring moved through the moving portion to a designed pressure, Formed on one side of the stretching machine to prevent escape and collision And a limit switch, and the press block is pressurized at a predetermined pressure by a predetermined pressure, and then is pressed forward, backward, leftward or rightward to achieve a smooth tightening action of a fastening means such as a bolt and a nut And a through-hole penetrating both sides is formed.;