The invention relates to a hydraulic mechanical arm for an underwater excavator. The hydraulic mechanical arm comprises a base, a rear arm, a front arm, a rear hydraulic cylinder and a front hydraulic cylinder; the base is connected with the rear arm through a rear arm pin shaft and a rear arm bushing; the rear arm is connected with the front arm through a front arm pin shaft and a front arm bushing; a seat of the rear hydraulic cylinder is connected with the base through a first pin shaft, the end of an output shaft of the rear hydraulic cylinder is connected with the rear arm through a second pin shaft, the front hydraulic cylinder is connected with the rear arm through a third pin shaft, and the front hydraulic cylinder is connected with the front arm through a fourth pin shaft. According to the hydraulic mechanical arm, the base, the rear arm and the front arm realize integration of swinging and rotating functions, and the hydraulic mechanical arm is compact in structure, flexible to operate, high in reliability, convenient to assemble and overhaul, few in quick-wear parts and convenient to replace accessories, and has relatively high applicability and universality. The front arm pin shaft and the rear arm pin shaft are sealed and protected by the aid of dustproof and waterproof double-layer sealing rings, and the whole machine is completely waterproof, so that the long-term underwater working requirement can be met.
本发明涉及一种水下挖掘机用液压机械臂,包括底座、后臂、前臂、后液压缸、前液压缸;底座与所述后臂之间通过后臂销轴和后臂衬套连接;后臂与所述前臂之间通过前臂销轴和前臂衬套连接;后液压缸的基座与底座通过第一销轴连接,后液压缸的输出轴端部与后臂通过第二销轴连接,前液压缸与后臂通过第三销轴连接,前液压缸与前臂通过第四销轴连接。本发明中,底座、后臂、前臂三者之间实现了摆动、旋转功能一体化,且结构紧凑,操作灵活,可靠性高,方便装配和检修,易损件少,便于更换配件,具有较强的适用性和通用性。前臂销轴和后臂销轴采用具有防尘和防水的双层密封圈密封保护,整机完全防水设计,能够满足长期水下工作需求。
Hydraulic mechanical arm for underwater excavator
一种水下挖掘机用液压机械臂
22.06.2021
Patent
Elektronische Ressource
Chinesisch