In-line mechanical multipoint uniform distribution loading tool

Abstract

The invention discloses an in-line mechanical multipoint uniform distribution loading tool, and belongs to the field of mechanical experiment measurement. The in-line mechanical multipoint uniform distribution loading tool comprises a first-stage loading unit, a second-stage loading unit, a third-stage loading unit and a tail end loading unit. A second-stage dowel bar is connected with a second-stage upper connecting pin through a first-stage lower connecting pin between the first-stage loading unit and the second-stage loading unit, a second third-stage dowel bar is connected with a third-stage upper connecting pin through a second-stage connecting pin between the second-stage loading unit and the third-stage loading unit, and between the third-stage loading unit and the tail end loadingunit, a tail end dowel bar is connected with the tail end connecting pin through a third-stage lower connecting pin. The in-line mechanical multipoint uniform distribution loading tool has at least two stages of the loading stage, and the loading level can be larger than three levels according to different requirements of the size of a test piece and the number of loading points. Pure mechanical automatic uniform distribution of multi-point loads is achieved within a certain deformation range, an electric control loading system is not needed, the tool cost can be effectively reduced, and the device has the advantages of being simple in structural form, convenient to install, high in experiment precision, free of loading point positioning and the like.

Description

technical field [0001] The invention belongs to the field of mechanical experiment measurement, and relates to an in-line mechanical multi-point uniform loading tooling. Background technique [0002] In the aerospace field, when conducting uniform load experiments on medium and large long beam specimens such as aircraft wings, it is necessary to customize a series of complex loading tools according to the structure and size of the specimen, apply multiple loading units and supplement a set of multi-point coordination Electronically controlled loading system, thereby approximately simulating the uniformly distributed loading conditions of the structure. This method needs to customize special tooling for different test pieces in the early stage, which is costly and significantly increases the experimental cycle, while the installation and matching process between different loading tooling, loading unit and multi-point coordinated electronic control loading system is cumbersome...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of long manufacturing cycle, cumbersome installation, low efficiency and poor operability of the electric control system in the existing uniformly distributed multi-point loading tooling, the present invention proposes an in-line mechanical multi-point uniformly The loading unit transmits the concentrated load of the actuator down step by step, and realizes automatic and uniform distribution during the transmission process, and finally realizes multi-point uniform loading

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