Crane axle load balancing device and balancing method

The invention discloses a crane axle load balancing device and balancing method.The crane axle load balancing device is arranged between suspension oil cylinders of different axles, is provided with a port A and a port B which are connected with the different suspension oil cylinders and a port P connected with an energy accumulator, and is configured in the mode that no matter hydraulic oil flows from the port P to the port A/B or flows back from the port A/B to the port P, the hydraulic oil flows back from the port A/B to the port P; the port A and the port B have fixed pressure difference; according to the axle load balancing device of the crane, the pressures of the suspension oil cylinders of different axles can be inconsistent, so that the axle load difference caused by the self-weight difference of the axles is compensated, and the axle loads of the axles are consistent. Axle load balance of the axle can be achieved, and the crane performance is improved. 本发明公开了一种起重机轴荷平衡装置及平衡方法，所述的起重机轴荷平衡装置设置在不同车轴的悬架油缸