A measuring device for obtaining propeller thrust characteristics in deep sea environment

Abstract

The invention discloses a measuring device for acquiring thrust characteristics of a thruster in a deep sea environment. The two ends of an outer pressure-bearing barrel in a pressure-bearing shell assembly are connected with sealing end covers correspondingly. An inner supporting cylinder of the supporting and fixing frame assembly is embedded in the outer pressure bearing cylinder and can move in the axial direction of the inner wall of the outer pressure bearing cylinder, supporting flanges are fixed to the two ends of the inner supporting cylinder, the two ends of a harness cord are fixedto the supporting flanges at the two ends of the inner supporting cylinder respectively, and the propeller module comprises an underwater propeller which can move along a convex rail through a connecting frame; the thrust measuring assembly comprises an inductive displacement sensor and a force measuring spring, the force measuring spring deforms due to movement of the underwater propeller, and the inductive displacement sensor measures the displacement of the force measuring spring to measure and calculate the thrust of the underwater propeller. The water pressure in the cylinder is freely adjusted through the supercharging device, the underwater propeller is simulated to work in different deep sea pressure environments, and then the thrust characteristic change of the propeller in the deep sea environment is measured.

Description

technical field [0001] The invention belongs to the technical field of underwater robots, and in particular relates to a thrust measuring device for a thruster of an underwater robot, in particular to a measuring device for obtaining thrust characteristics of a thruster in a deep-sea environment. Background technique [0002] As the key power equipment of the underwater robot, the propeller is used to control the travel, direction and attitude of the underwater robot to ensure the normal work of the robot underwater. For underwater thrusters, the thrust is the key factor affecting its working efficiency. Therefore, the measurement and calculation of thrust has important guiding significance for the research of underwater propulsion. [0003] The patent application number is 201610231147.0, and the Chinese patent titled "A Force Measuring Platform for Underwater Propellers" provides a force measuring platform for underwater propellers, which solves the problem of the hydrody...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing propeller thrust measurement device is suitable for measuring the thrust characteristics of the propeller under normal pressure, and does not consider the influence of the deep-sea environmental pressure on the thrust characteristics of the propeller, so it is difficult to directly measure the thrust characteristics of the propeller in the deep-sea environment

Images