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实用新型
CN204300574U 一种LNG加注臂用旋转接头 失效 - 放弃

一种LNG加注臂用旋转接头
摘要：
本实用新型公开了一种LNG加注臂用旋转接头。它包括一滚珠轴承，所述滚珠轴承的两端分别固定一左端法兰和一右端法兰；所述滚珠轴承包括内圈、左外圈和右外圈，所述内圈与所述左外圈之间的钢珠滚道与所述内圈与所述右外圈之间的钢珠滚道之间为交错设置；所述内圈内设有内衬套。与传统的旋转接头相比，本实用新型LNG加注臂用旋转接头中的内衬套可左右浮动，增加了对密封圈沟槽宽度的补偿量；且将外圈分为左外圈和右外圈，左外圈与右外圈之间设置了安装限位的环槽，可保证左右滚道的同轴性；左外圈、右外圈与内圈之间的钢珠滚道相互错开，增加了旋转接头承受弯矩的能力。
摘要（英）：

The utility model discloses a rotating connector for an LNG filling arm. The rotating connector comprises a ball bearing, and a left flange and a right flange are fixed at the two ends of the ball bearing respectively; the ball bearing comprises an inner ring, a left outer ring and a right outer ring, and a steel ball rollaway nest between the inner ring and the left outer ring and a steel ball rollaway nest between the inner ring and the right outer ring are arranged in a staggered mode; an inner bushing is arranged in the inner ring. Compared with a traditional rotating connector, the inner bushing of the rotating connector for the LNG filling arm can float left and right, and the compensation dosage on the width of a groove of a sealing ring is increased; the outer ring is divided into the left outer ring and the right outer ring, an annular groove used for installation limitation is arranged between the left outer ring and the right outer ring, and therefore coaxiality of the left rollaway nest and the right rollaway nest can be guaranteed; the steel ball rollaway nest between the inner ring and the left outer ring and the steel ball rollaway nest between the inner ring and the right outer ring are arranged in the staggered mode, so that the capacity of bearing bending moment of the rotating connector is improved.

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