Lower vehicle mechanism of excavator

The utility model provides an excavator getting-off mechanism, and relates to the technical field of excavator getting-off, the excavator getting-off mechanism comprises a first mounting plate, the two sides of the upper surface of the first mounting plate are both provided with grooves, rotating shafts are rotatably installed between the inner walls of the two sides of each groove, and the side faces of the two rotating shafts are both fixedly provided with transverse plates; a supporting plate is fixedly mounted on the front surface of the first mounting plate, and a driving adjusting assembly for driving the transverse plate is arranged on the supporting plate. The output end of the hydraulic cylinder stretches out and draws back, so that the transverse plate swings in an inclined mode with the rotating shaft as the center, and at the moment, the height of the transverse plate can be adjusted; when the height of the transverse plate is adjusted to a proper height, the clamping plate is arranged on the vehi