Oil cylinder with adjustable stroke

The utility model relates to a hydraulic device of railway line maintenance mechanical equipment, and provides an oil cylinder with an adjustable stroke. The oil cylinder with the adjustable stroke is characterized by comprising a cylinder body (1), a piston (2), a guide sleeve (3), a gland (4), a stroke adjusting nut (5), a locking nut (6), a piston rod (7) and hanging lugs (8). The gland (4) is provided with an external screw thread and an internal screw thread, wherein the external screw thread of the gland (4) is matched with the cylinder body (1), the internal screw thread of the gland (4) is matched with the stroke adjusting nut (5), and the gland (4) presses the guide sleeve (3) on the cylinder body (1) through the screw threads. The stroke adjusting nut (5) has an adjustable range C, so that the stroke of the oil cylinder can be adjusted as needed in a specified range, the application range of the oil cylinder is expanded, the adjustment is simple and convenient, and parts of the oil cylinder do not n