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Linear guide with an air bearing having provision for heating a support element of the linear guide to maintain fluid gap
Linear guide with an air bearing having provision for heating a support element of the linear guide to maintain fluid gap
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机译:具有空气轴承的线性引导件,其具有用于加热线性引导件的支撑元件以保持流体间隙的措施
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摘要
A linear guide comprises a support element and a carriage sliding on the support element. The carriage has two hollow cylinders sliding on an air bearing on the support element and a body arranged between them. The support element and the two hollow cylinders of the carriage are separated by a gap to which compressed air can be applied. A linear motor formed from a u-shaped stator and an armature is foreseen as drive mechanism for the carriage. During operation, heat dissipation occurs in the armature which heats the carriage. In order to maintain changes in the thickness of the gap within predetermined limits, the support element and/or those parts of the carriage whose temperature influence the thickness of the gap are heated to a predetermined temperature.
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