| 摘要 |
A system is provided for leveling and stabilizing a forklift vehicle having a frame and at least one and preferably two axles pivotally connected with the frame. The system includes a frame leveler device including a hydraulic cylinder extending between the frame and the front axle and configured to move the frame with respect to the axle. A stabilizer device is mounted to the frame and includes a pair of arms and two stabilizer hydraulic cylinders. Each stabilizer cylinder has a piston with a rod connected with a separate one of the arms and a base chamber on one side of the piston. Further, a fluid exchange line extends between the base chambers of the two stabilizer cylinders and an exchange valve controls flow through the exchange line. A controller is connected with the leveler cylinder and with the exchange valve and is configured to open the valve when the leveler cylinder displaces the frame with respect to the axle such that the stabilizer cylinders are each retractable and extendable during movement of the frame. More specifically, movement of the frame with respect to the axle when the arm portions contact the ground surface causes hydraulic fluid to between the stabilizer cylinders such that the piston rod of one cylinder retracts and the rod of the other cylinder extends while the stabilizer arms remain substantially stationary. |
