HYDRAULIC CYLINDER BUFFERING CONTROL METHOD, BUFFER TYPE HYDRAULIC CYLINDER CONTROL SYSTEM AND HYDRAULIC EQUIPMENT

摘要

Provided is a hydraulic cylinder buffering control method, comprising the following steps: firstly, controlling a change of the direction of a hydraulic cylinder and acquiring the time of the direction change; secondly, acquiring the time difference for buffering communication according to the load pressure of the hydraulic cylinder and the uniform motion velocity of a piston rod; thirdly, starting from the time of the direction change over the time difference for buffering communication, causing a chamber having a rod (4) to be in communication with a rodless chamber (5) of the hydraulic cylinder or switching an oil return pipeline (10) of a corresponding buffering cavity (8) of the hydraulic cylinder into conduction. Additionally, also provided are a buffer type hydraulic cylinder control system and hydraulic equipment utilizing the method. The buffering control method and the buffering control system therewith can perform the buffering control according to different operating conditions, thereby achieving a good buffering effect on the hydraulic cylinder in different operating conditions and effectively overcoming the problem of pressure impact in the system due to the collision of the cylinder.