The servo manipulator has the characteristics of flexible and controllable actions, accurate and reliable positioning, high load driving force, and strong environmental adaptability. At present, multi-degree-of-freedom manipulators are widely used in production automation industries such as steel, marine, petroleum, chemical, logistics and handling, which greatly reduces labor intensity and working conditions of workers, improves production efficiency, and stabilizes product quality.
Most of the existing manipulators use motors as power, which have the advantages of simple structure, light weight, rapid action, reliable work, energy saving and environmental protection. However, electrical manipulators have relatively small load and must have matching deceleration equipment to resist impact and There is no advantage for high loads. The hydraulic manipulator adopts hydraulic power and uses electro-hydraulic servo control. It has the advantages of flexible action, high load rigidity, high precision, fast response speed, and large power-to-weight ratio. It is more suitable for high-power load handling occasions.
However, the unreasonable design of the hydraulic system in the hydraulic manipulator often leads to lower transmission efficiency, which is a problem that needs long-term research and resolution.
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