Six-section high-thrust multi-motor synchronous driving telescopic electric cylinder

Abstract

The invention discloses a six-section large-thrust multi-motor synchronous driving telescopic electric cylinder, which is characterized in that a group of five-stage synchronous lead screw pair is adopted in the electric cylinder for transmission and bearing thrust, six sections of outer pipes are adopted for concentric circle sleeving for connection and protection outside the electric cylinder, and the adjacent outer pipes are matched by adopting guide keys and guide key slots; the adjacent outer pipes can only axially slide along the central axis and cannot radially rotate along the central axis; the motor drive adopts multiple motors which are connected in parallel and work synchronously, the first-stage, third-stage, fourth-stage and fifth-stage ball screws are driven to rotate synchronously, and the second-stage ball screw does not rotate. Compared with domestic products of the same magnitude, the six-section large-thrust electric cylinder has the advantages of being small in size, large in thrust and long in extending stroke ratio.

Description

technical field [0001] The invention relates to an electric cylinder device for lifting or erecting a large load, especially an electric cylinder with a thrust of more than 100 tons and a large contraction and extension ratio. Background technique [0002] With the development trend of more electrified technology for special vehicles, the electric drive rapid erection technology of vehicle-mounted large-scale missile launcher has become a hot spot in the research of vertical launch technology for large-scale missiles. The requirement for the erection time is getting shorter and shorter, the weight and size of the equipment are getting bigger and bigger, and the volume of the high-thrust multi-stage electric cylinder is also getting bigger and bigger. How to realize the electric drive of the vehicle-mounted large-scale missile launcher in a limited space? The rapid erection of the cylinder has become the key to the electrification of large missile launch vehicles. [0003] A...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a six-section high-thrust multi-motor synchronously driven telescopic electric cylinder to solve the small space layout of the vehicle-mounted large missile launcher, the ultra-long telescopic ratio and the 100-ton thrust demand, so as to fill the existing domestic electric cylinder Gaps in six-knot 100-ton thrust

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