Parallel motion simulation platform with load-bearing mechanism

Abstract

The invention discloses a parallel motion simulation platform with a load-bearing mechanism. The parallel motion simulation platform mainly comprises a basic platform, a motion platform, a load-bearing platform, six driving branches, a first load-bearing branch and at least three second load-bearing branches, wherein the structures of the six driving branches are totally the same, and the structures of the at least three second load-bearing branches are totally the same; the six driving branches are connected with the motion platform and the basic platform, and thus a parallel driving mechanism is formed; the first load-bearing branch and the second load-bearing branches are connected with the load-bearing platform and the basic platform, and thus a parallel load-bearing mechanism is formed; the six driving branches are all of UPS (Uninterrupted Power Supply) structures and are formed by electric cylinders, first ball hinges and first universal hinges; the first load-bearing branch is of a UPU (Uninterrupted Power Unit) structure and is formed by a balance hydraulic cylinder or balance air cylinder, a second universal hinge and a third universal hinge; and the second load-bearing branches are of the UPS structures and are formed by balance hydraulic cylinders or balance air cylinders, second ball hinges and fourth universal hinges. According to the parallel motion simulation platform disclosed by the invention, the load bearing capacity is strong, the dynamic response speed is quick, the control is simple, the parallel motion simulation platform is suitable for indoor and field environments, and additional load caused by the load-bearing mechanism is simultaneously reduced.

Description

technical field [0001] The invention relates to a parallel mechanism, in particular to a parallel motion simulation table. Background technique [0002] A common six-degree-of-freedom parallel motion simulation table consists of six telescopic links, a base and a motion platform. The telescopic link is composed of electric cylinder or hydraulic cylinder. When the telescopic rod is an electric cylinder, the simulation table has the advantages of strong overload capacity and easy realization of high-precision servo control, but its output force is limited, and it cannot simulate the movement of large equipment such as aircraft and ships; when the telescopic rod is hydraulic When the cylinder is used, the simulation table can withstand heavy loads, but the disadvantages of the hydraulic system, such as large volume, easy leakage of components, high maintenance costs, and sensitivity to temperature, limit its application in parallel motion simulation tables. [0003] The conti...

AI Technical Summary

Problems solved by technology

However, the mechanical structure is complicated, and 32 redundant drive motors are controlled at the same time, which increases the difficulty of control

Chinese patent 98102675.3 discloses a simulator with a weight-bearing actuator, which uses seven actuators to drive the platform movement and has a high load-carrying capacity, but the seven actuators form a redundant drive, and the system pressure needs to be detected in real time control, increasing the difficulty and cost of control

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