The invention belongs to the field of aero-engine fuel regulator accessory detection, and particularly relates to a starting friction force detection device and method for a rubber rolling diaphragm. The size of the friction force of the diaphragm cannot be determined before installation, so that the fuel regulation performance of a certain type of aero-engine is seriously influenced. The measuring mechanism comprises a tension meter capable of moving up and down, wherein a drag hook is arranged at the lower end of the tension meter; an upper support of the fixing mechanism is of a bowl-shaped structure or an axisymmetric structure with a U-shaped section, and the bottom of the upper support and the bottom of a lower support are oppositely connected so that the rubber rolling diaphragm can be clamped between the upper support and the lower support. An annular pressing plate of the upper end cover is pressed on the upper end face of the base, the upper support is sleeved with the barrel-shaped structure, and the annular pressing plate is provided with a lower annular groove for containing the protruding sealing structure and a straight groove in the upper end face. A cavity between the upper support and the cylindrical structure accommodates the inner ring face and the outer ring face which are attached to each other, and the upper support and the lower support are driven by the drag hooks to move up and down. Structural design is simple, and operation is convenient.
本发明属于航空发动机燃油调节器附件检测领域,特别涉及一种橡胶滚动膜片的启动摩擦力检测装置和检测方法。膜片摩擦力大小无法在安装前确定,严重影响了某型航空发动机燃油调节的性能。本发明的测量机构包括可上下移动的拉力表,在该拉力表下端具有拉钩;固定机构的上支架为碗形结构或截面U型轴对称结构,上支架与下支架的底部相对连接从而将橡胶滚动膜片夹在其中;上端盖的环形压板压在底座的上端面上,筒型结构套在上支架外侧,且环形压板具有容纳凸起密封结构的下环形槽,以及上端面的直槽;上支架与筒型结构之间的腔体容纳贴合的内环面和外环面,通过拉钩带动上支架与下支架上下移动。结构设计简单、操作方便。
Device and method for detecting starting friction force of rubber rolling diaphragm
一种橡胶滚动膜片的启动摩擦力检测装置和检测方法
2023-03-21
Patent
Elektronische Ressource
Chinesisch
IPC: | G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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