A hydraulic leveling system based on P87C591 is designed. The platform of vehicle can be automatically leveled by this system.

设计了一套基于P87C591的四点支撑液压调平控制系统，该系统可用于座车平台的自动调平。

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This machine is mainly composed of passive loading frame, after molding, leveling device, punching device, cutting device, hydraulic station, computer control system, etc.

该机主要由被动装料架、整平装置、冲孔装置、成型后切断装置、液压站、电脑控制系统等。

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Equipped with flow regulator in system, electro-hydraulic proportional speed regulating valve can decrease leveling time in high speed gear, and ensure leveling accuracy in low speed gear.

系统中设有流量调节环节，电液比例调速阀在快挡可以缩短整个调平时间，在慢挡可以保证调平精度。

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