The Development Studies on Air Slide Conveyer for Unit Load

Abstract

The purpose of this study was to develop the mechanism which provides the air jet only against the bottom surface of a carrier pallet to lift up.
The results of the fundamental experiment and hovering experiment can be summarized as follows;
1). The response time of the piston sensor was calculated from the following equation.
t₁=S_p²ρ/μ″F_pgk₁(√2g/ρ(P_p-m+α/S_p)-√2g/ρ(P_p-m+α+k₁y₁/S_p))
2). For the experimental apparatus, the minimum pressure on the piston sensor head was obtained to be 0.02 P₀ as the theoretical value.
However, since the apparatus actually had various mechanical resistance, the value obtained in Fig. 6 was desirable. (Ref. Fig. 6)
3). It was concluded that factors to decide the consumption of the air were the diameter of the air flowing hole, the height of the lifted pallet, and the air pressure under the lifted pallet.
The pressure in the main pipe P was the most effective factor to decide the air consumption. (Ref. Fig. 12-15)
4). The successful operation was obtained under the condition that the air consumption rate was over 1400l/min.
In this case, the friction coefficient was less than 0.02. (Ref. Fig. 17-18)