| 摘要 |
PURPOSE:To obtain a beautiful painted surface with pulverized spray paint by improving a supporting mechanism for a revolving shaft provided with a paint ejection part, etc. thereby obtaining high revolutions in a titled device used for painting the bodies of automobiles, etc. CONSTITUTION:The revolving shaft 8 of a rotary atomization electrostatic device 1 is supported by a pair of noncontact type radial bearings 22, 23 consisting of tilting pad air bearings, etc. and a thrust bearing consisting of runners 39, 40 and an annular plate 44. On the other hand, an electrode 66 for application of negative voltage contacting the inside end part of said shaft 8 at all times is provided, and a slip plate 72 consisting of a material of high conductivity and a small coefft. of friction is fixed onto the inside end part of the shaft 8 in contact with this electrode 66, so that this electrode 66 and the slip plate 72 are allowed to make slip contact. With such constitution, the number of revolutions of the shaft 9 mounted with a spray head 9 is increased and therefore the spray paint is pulverized and the beautiful painted surface is obtained.
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