A power device of a mechanical arm

Abstract

The invention discloses a power device for a mechanical arm. The power device for the mechanical arm comprises a supporting base, at least one lead screw thrust mechanism and at least one rope wheel train mechanism. The lead screw thrust mechanisms and the rope wheel train mechanisms are all fixedly connected to the supporting base. Each lead screw thrust mechanism comprises a driving assembly, a lead screw assembly and a nut assembly, wherein the nut assembly is connected to the lead screw assembly in a sleeving mode, the two ends of the lead screw assembly are fixedly connected to the supporting base, and the driving assembly is connected with one end of the lead screw assembly so as to drive the lead screw assembly to rotate. Each rope wheel train mechanism comprises a first rope wheel train assembly and a second rope wheel train assembly, where the first rope wheel train assembly comprises a first rope and a first rope wheel, and the second rope wheel train assembly comprises a second rope and a second rope wheel; and the first rope and the second rope are subjected to transmission in the direction of the lead screw assemblies, and the transmission direction of the first rope is opposite to the transmission direction of the second rope. By adoption of the power device for the mechanical arm, the weight of the mechanical arm is greatly reduced, and the purposes of low weight and high load capacity of the mechanical arm are achieved.

Description

technical field [0001] The invention relates to the field of intelligent mechanical arms, in particular to a power device for a mechanical arm. Background technique [0002] Most of the existing joint structures of manipulators place the driving mechanism directly inside the joints, resulting in a large joint mass. The higher the degree of freedom of the manipulator, the more joints are required, and the mass of the whole arm is also proportional. increase. In the process of performing tasks, the robotic arm consumes a lot of mechanical energy to overcome its own gravity, and it is difficult to increase the load capacity, which has become the design bottleneck of traditional robotic arms. [0003] At the same time, most of the traditional drive systems need to use gear reducers or harmonic reducers for torque amplification, which further increases the quality of the manipulator and is expensive. [0004] The disclosure of the above background technical content is only used...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing technical problems such as the drive mechanism of the mechanical arm is difficult to disengage from the joints and the mechanical arm is bulky, the present invention proposes a power device for the mechanical arm, which achieves the goal of large deceleration and force increase, and replaces the additional deceleration mechanism of the traditional mechanical arm , which greatly reduces the mass of the manipulator, and realizes the goal of light weight and heavy load of the manipulator

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