This design for the design of the three billboards, three billboard is composed of a set of side by side of triangular prism, triangular prism can be made out of aluminum, and turning around its central axis, the three kinds of advertising images respectively set on the reorganization of tri-prism three, thus using tri-prism three sides can form three pairs of pictures, turn the triangular prism can transform advertising images.
Three billboards transmission system are introduced in this scheme, can achieve a variety of flipping effect and achieve low cost, easy maintenance, mainly used in the design of the characteristics of the clearance agency, will take the initiative to stop when a uniform rotation transformation is still cyclical movement, save unnecessary waste of energy, make full use of the function of the machine.and completed the three drive system of the billboard structure parameter design of key parts, including the design of the driving part, the design of the shaft and check, the choice of motor, etc. Using CAD software to complete the three billboard structure assembly and related parts graph, and as far as possible using Pro/e software to three billboards transmission system for three-dimensional modelling design.
Key words: Three sides、intermittent mechanism、transmission parts 、 CAD