Hydraulic limiting suspension oil cylinder

The utility model belongs to the technical field of multi-axis mining vehicle suspension frames, and particularly relates to a hydraulic limiting suspension oil cylinder. The hydraulic limiting suspension oil cylinder comprises a cylinder body and a piston rod installed in the cylinder body. One end of the piston rod is sleeved with the cylinder body through a guiding sleeve, and the cylinder body is formed by welding an end cover and a cylinder tube. The inner side of the end cover is provided with a groove. The piston rod is formed by welding a buffering plunger and a hollow rod. When the piston rod is retracted completely, clearance fit is formed between the head of the buffering plunger of the piston rod and the groove of the end cover. The hollow rod is provided with a damping hole. The hydraulic limiting suspension oil cylinder has the advantages that the extending and retracting of the piston rod are reliably buffered and limited through the cooperation of the buffering plunger on the piston rod and th