Hydraulic swing cylinder driving joint based robot hydraulic mechanical arm

Abstract

The invention relates to a hydraulic swing cylinder driving joint based robot hydraulic mechanical arm. The robot hydraulic mechanical arm includes a small joint arm and a big joint arm; the small joint arm and the big joint arm are connected through a joint arm connection rod; each of driving joints of the small joint arm and the big joint arm includes two hydraulic swing cylinders, wherein output shaft ends of the two hydraulic swing cylinders are mutually perpendicular; the hydraulic swing cylinders are arranged in a support; the output shaft ends of the hydraulic swing cylinders in the support are connected to gears; and the gears are engaged with potentiometer gears at the tails of the potentiometers. The robot hydraulic mechanical arm is simple in structure, is convenient in modular production, and can be applied and promoted to industry; a driving section is driven by the hydraulic swing cylinders, a large output torque can be acquired, and the bearing capability is further improved; and meanwhile, the rigidity is better than that of motor-driven mechanical arms, the production cost is low, the difficulty of manufacture is small, better economy can be acquired, and the practicality is high.

Description

technical field [0001] The invention belongs to the technical field of mechanical design, in particular, the invention relates to a robot hydraulic mechanical arm based on hydraulic swing cylinder-driven joints. Background technique [0002] At present, the mechanical arm is an automatic mechanical device that has been widely used in the field of robotics, and it is widely involved in industrial manufacturing, entertainment services and other fields. Most of the manipulators are used in a single form, and generally only complete specific tasks. In traditional manipulator design applications, the external environment is known. When the demand changes, its ability to change according to the demand is poor. Existing manipulator joints are generally driven by electric motor acceleration and deceleration machines, and the power density of such manipulators is usually relatively low. At the same time, due to the use of motors, the scope of use of the manipulator is limited in som...

AI Technical Summary

Problems solved by technology

Most of the manipulators are single-form applications, and generally only complete specific tasks. In traditional manipulator design applications, the external environment is known. When the demand changes, its ability to change according to the demand is poor

The existing manipulator joint drive generally adopts the method of motor acceleration and deceleration, and usually the power density of this kind of manipulator is relatively low

At the same time, due to the use of motors, the application range of the manipulator is limited in some special environments. For example, the service life of this kind of manipulator will be greatly affected in the nuclear radiation environment.

At the same time, the existing mechanical arm has many problems such as small load capacity and poor rigidity; inflexible movement and low position accuracy; poor versatility, poor strain capacity, and inconvenient maintenance and adjustment.

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