AN AUTOMATIC VARIABLE APPARATUS AND SYSTEM OF WIDTH IN TRENCH FACILITY

摘要

The present invention relates to a system and device for automatically changing the length of a trench facility. Users input the length of the trench facility for testing the heavy equipment’s capacity of passing through the trench facility. The invention is for saving test time and manpower by accurately controlling a gap between a variable and fixed deck and by automatically moving the variable deck back or forth. The invention comprises the fixed deck for positioning a vehicle before the test of a trench facility; a variable deck for changing the length of a trench; a fluid pressure winch for moving the variable deck back and forth; a fluid pressure cylinder for moving the variable deck up and down; a fluid pressure generator for supplying fluid pressure to the fluid pressure cylinder and winch; a distance measuring unit for measuring the distance between the variable deck and fixed deck; and a main controller which controls the fluid pressure generator, fluid pressure cylinder, and the winch with comparing a measured value to a capacity value of the capacity inputted by the users. [Reference numerals] (10) Variable deck;(111) First fluid pressure winch;(112) Second fluid pressure winch;(120) Main controlling device;(130) Fluid pressure generating device;(140) Distance measuring unit;(150) Compressor;(161) First fluid pressure cylinder;(162) Second fluid pressure cylinder;(163) Third fluid pressure cylinder;(164) Fourth fluid pressure cylinder;(165) Fifth fluid pressure cylinder;(166) Sixth fluid pressure cylinder;(167) Seventh fluid pressure cylinder;(168) Eighth fluid pressure cylinder;(169) Ninth fluid pressure cylinder;(170) Tenth fluid pressure cylinder;(20) Fixed deck;(AA) Rear direction;(BB) Front direction