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实用新型
CN201934790U 一种氟塑料支承环阀杆运动副 失效 - 权利终止

一种氟塑料支承环阀杆运动副
摘要：
本实用新型属于应用于运载火箭的阀门部件，具体涉及一种氟塑料支承环阀杆运动副。一种氟塑料支承环阀杆运动副，它包括阀杆，阀杆套装在导向套内，导向套内设有导向环。导向套内有两个凹槽，导向环有两个，导向环圆周上开口，导向环放置于导向套的凹槽内。所述的导向环为氟塑料制成。本实用新型的优点是，通过在导向套内设置氟塑料导向环既解决了阀门阀杆金属-金属运动副易发生金属间粘滞磨损以及方案上粘结氟塑料衬套工艺复杂成本高的问题，又可以保证阀杆的运动灵活性。
摘要（英）：

The utility model belongs to the valve parts applied to a carrier rocket, and particularly relates to a fluoroplastic supporting ring valve rod kinematic pair, which comprises a valve rod, wherein the valve rod is sleeved in a guide sleeve, and guide rings are arranged in the guide sleeve; two grooves are arranged in the guide sleeve, and the two grooves with openings formed on the circumferences are arranged in the grooves of the guide sleeve; and the guide rings are made of fluoroplastics. The fluoroplastic supporting ring valve rod kinematic pair has the advantages that by arranging the fluoroplastic guide rings in the guide sleeve, the problems that the intermetallic viscous abrasion of the valve rod metal-metal kinematic pair of the valve is easy to occur, and the viscous fluoroplastic liner bushing in the scheme has complex technology and high cost are solved, and the moving flexibility of the valve rod is ensured.

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