Automatic lubrication control system and control method for gear pair of slewing mechanism of hydraulic excavator: Fid-Bau Portal

Automatic lubrication control system and control method for gear pair of slewing mechanism of hydraulic excavator

LIU HETAO / LI YAO / JIN CHAO / ZHONG JIAWEI / LI YONGSEN

The invention discloses a hydraulic excavator slewing mechanism gear pair automatic lubrication control system which comprises a displayer, a controller, an engine, a hydraulic main pump, a hydraulic oil tank, a hydraulic main valve, a slewing motor, a gear pair lubrication area, a control handle, an electric proportional control valve, a lubricating oil filling device and a lubricating grease storage device. The displayer, the engine, the hydraulic main pump, the control handle and the electric proportional control valve are electrically connected with the controller, the engine is mechanically connected with the hydraulic main pump and provides power for the hydraulic main pump, an oil inlet of the hydraulic main pump is connected with the hydraulic oil tank through a pipeline, and an oil outlet of the hydraulic main pump is connected with the electric proportional control valve and the hydraulic main valve through pipelines. Through precise control of the control method, lubrication of the gear pair is guaranteed, the service life of the gear is prolonged, waste of lubricating grease is reduced, the lubricating grease is prevented from dripping on the ground, and pollution of the lubricating grease to the environment is avoided.

本发明公开一种液压挖掘机回转机构齿轮副自动润滑控制系统，包括：显示器、控制器、发动机、液压主泵、液压油箱、液压主阀、回转马达、齿轮副润滑区、操纵手柄、电比例控制阀、润滑油加注器、润滑油脂存储器，显示器、发动机、液压主泵、操纵手柄、电比例控制阀与控制器电连接，发动机与液压主泵机械连接，为液压主泵提供动力，所述液压主泵进油口通过管路与液压油箱连接，液压主泵出油口通过管路分别与电比例控制阀、液压主阀连接；通过控制方法精准控制既保证了齿轮副的润滑，延长了齿轮的使用寿命，又减少了润滑油脂的浪费，也防止了润滑油脂滴落到地面，避免了润滑油脂对环境造成污染。

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