Research On Three-Dimension Parametric Design Of Vertical Guide Bar Hydraulic Power Support And Its FEM Intensity Analysis

Hydraulic power support is one of the important facilities in underground projects or tunnel projects, which is used for supporting top rock, and preventing the top rock from collapsing. It can provide a safe and secure workspace for construction workers and equipments. Along with the scale expansion and high speed of national projects in constructional process, the performance of hydraulic power support need to be increasingly higher and higher. Therefore researching and developing a new type of hydraulic power support is very significant in practice.Firstly, basing on the analysis of traditional hydraulic power support, by mechanical evolution, a new type of the vertical guide-bar hydraulic power support is developed, and its canopy is also simplified in structure that has no activity side flap. The new support has some advantages: it not only can improve the stress condition, enhance the stability of it, but also possesses of simple structure, light weight, easy adjustment the interval between the adjacent supports. Therefore it is very hopeful in the application prospects.Secondly, the optimal model is built up by taking the weight of the canopy as the optimal objective function, structural strengthen as restrictive conditions. Then using the Random Ray Method, the optimal calculation is achieved by programming in Visual Basic 6.0, which can reduce the weight of original canopy by 19%. So the effect is obvious.Moreover, the three-dimensional parametric model of the vertical guide-bar hydraulic power support is set up by using the three dimensional parametric software-Pro/E, this model is translated from Pro/E to ANSYS, and the analysis pictures of both stress and deformation in several static force conditions are got by means of ANSYS software.In this paper, the vertical guide-bar hydraulic power support is studied and the new canopy structure of no activity side flap is innovated, and a new type mechanical model is established on it. With the modern technology and method, the developing cycle is shortened, the product quality improved, and the cost reduced. So it has the guidance and reference value for the research and development of hydraulic power support products in the future.