用于铁路货车的空重车调整装置

The invention relates to the technical field of train braking, and provides an empty and heavy truck adjusting device for a railway truck, which comprises a sensing valve, a pressure limiting valve, a pressure reducing air cylinder assembly and a brake cylinder assembly, wherein the pressure reducing air cylinder assembly and the brake cylinder assembly are used for connecting the sensing valve and the pressure limiting valve, the sensing valve comprises an upper chamber, a piston cylinder, a lower chamber, a push rod and a contact assembly which are sequentially arranged from top to bottom, the piston cylinder is positioned at the joint position of the upper chamber and the lower chamber and extends towards the lower chamber, a push rod spring is arranged in the lower chamber, the push rod is positioned in the lower chamber and sleeved in the push rod spring, a sliding groove which extends along the axial direction and penetrates through the lower chamber in the radial direction is arranged at the lower part of the piston cylinder, and the push rod is limited in the sliding groove through a pin shaft to realize axial movement after being inserted into the piston cylinder, so that the contact assembly contacts a crossing beam, the push rod and the piston cylinder are driven to move, and the air pressure of the upper chamber and the lower chamber is regulated, and the pressure of the brake cylinder is regulated according to the height of the crossing beam, so that the adaptive adjustment of braking force under different loading conditions is realized.