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首页> 外国专利> The compressor rotor of an aircraft gas turbine engine with spark blink and spark blink with a “classic” impeller and a pair of “classic” impeller with a fourth to sixth impeller with vibration damping devices for the blades of these blisk and impellers, a fan rotor and a booster rotor with oscillation damping device for working wide-chord fan blades, method for assembling a pair with a damping device

The compressor rotor of an aircraft gas turbine engine with spark blink and spark blink with a “classic” impeller and a pair of “classic” impeller with a fourth to sixth impeller with vibration damping devices for the blades of these blisk and impellers, a fan rotor and a booster rotor with oscillation damping device for working wide-chord fan blades, method for assembling a pair with a damping device

机译：具有“火花”闪烁和“火花”闪烁的飞机燃气涡轮发动机的压缩机转子，带有“经典”叶轮和一对“经典”叶轮，带有第四至第六叶轮，带有用于这些叶轮和叶轮叶片的减振装置，风扇转子和带有振动阻尼装置的增压转子，用于加工宽弦风扇叶片，将一对与阻尼装置组装在一起的方法

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FIELD: motors and pumps.SUBSTANCE: group of inventions refers to the rotors of compressors and fans of fifth-generation aviation gas turbines with compressor impellers manufactured using the "blisk" technology, and fan impellers with wide-chord or wide-chord hollow blades with dampers for damping the vibrations of the blades of these wheels. Term "twin" here is applied to the connection of two impellers of a rotor of a turbomachine, in the structural element of one of which the proposed damping device is located, which suppresses oscillations of the working blades of the other wheel. Twin can consist of two blisks, glare and a single impeller with several steps, blisk and a "classic" impeller with locking fasteners of blades to the disk and two "classic" wheels. Note that each rotor impeller with damping vibrations of working blades with the proposed damper, except for the wheels of the first and last stage, can be part of two sparks. Rotor of the HPC is proposed, consisting of a twin of two blisks – first and second stage impellers, twin from the blisk of the second stage and the "classic" third-stage wheel and the blisk from the "classic" third-stage wheel and the single wheel from the fourth to the sixth step and from the disc with the teeth of the labyrinth seal. And the blisk of the first stage is made in one piece with the ring with the teeth of the labyrinth seal. Blisk of the second stage – with a ring with the teeth of a labyrinth seal and a flange for fixing to the blisk of the first stage and with the rotor shaft of the HPC, and the "classic" wheel and single wheel – with rings with teeth of the labyrinth seal and a flange for fastening to the blisk of the second stage or the wheel of the third stage. Blades are mounted on the "classic" third-stage wheel with the help of the groove "swallowtail" and fixed from the axial displacement by a thrust ring attached to the front end of the rim of the third stage disc and the flange of the second twin wheel. Blades with the fourth to the sixth stage of the HPC rotor are installed on a single impeller HPC rotor in three profiled ring grooves. Platforms of these blades fit tightly to each other, ensuring reliable fixation of the blades in a tangential direction. At the blades of the first wheel of each twin of the rotor of the HPC, those at the blades of both blisks and the "classic" impeller of the third stage, the feather is made without a quadrangular fragment in the form of a trapezoid or a rectangle with one side of which is the trailing edge of the feather of the blade. At the blade tip, the inner angle between the sides serving as the upper base and the side of this quadrilateral is rounded by a radius, and this angle is equal to or greater than 90°. Rim of the disc of this blisk or this "classic" wheel is made only on the length of the base of the blade of the blade. Length of the blade lock of the "classic" wheel is equal to or less than the length of the rim of the disc and the blade lock does not protrude from the ends of the rim. Flange has an annular groove concentric to the axis of the wheel. In the outer shelf of this groove, the radially equal reciprocating blades of the first twin wheel, to which this wheel is attached, are formed. In the annular groove with interference on the shelves of the groove, an annular elastic-hysteresis element of structural damping is inserted, and in the radially located grooves with their bases without a gap or with a very small gap along the walls of the groove, for example with a gap less than 0.02 mm, friction elements consisting of a base in the plan precisely repeating the shape of the groove are inserted up to the stop with the bases in the elastic-hysteresis element, and a feather having a geometric form of a quadrilateral withdrawn from each working blade, with cross sections that accurately repeat the geometric shapes of the cross sections of the seized fragment of the blade of the blade. Second twin wheel is fixed in such a way that the feather of each friction element accurately takes the place of the seized fragment of the blade of the blade. In this case, a desired load amount is created that presses the friction element against the side of the blade of the blade contacting the upper end of the feather of the friction element, created due to the large elastic deformation of the elastic-hysteresis element, completely or not fully straightening it, and in all operating conditions of the engine these elements are additionally pressed against each other by a centrifugal force created by the mass of the friction element. Between the end of the rim of the first twin wheel and the counter faces of the bases of the friction elements, the interference is zero or there is a small gap, for example 0.01÷0.02 mm. Thickness of the base of the friction element and the shape of its outer surface are such that in the assembled twin, the outer surface of the base of the friction element constitutes one surface with
机译：领域：发明组是指具有使用“叶盘”技术制造的压缩机叶轮的第五代航空燃气涡轮机的压缩机和风扇的转子，以及具有宽弦或宽弦空心叶片的风扇叶轮带有阻尼器，用于阻尼这些轮子的叶片的振动。术语“孪生”在此适用于涡轮机的转子的两个叶轮的连接，所建议的阻尼装置位于其中一个的结构元件中，该阻尼装置抑制了另一轮的工作叶片的振动。 Twin可以由两个叶轮，一个眩光和一个带有多个台阶的叶轮，一个叶轮和一个“经典”叶轮组成，叶轮的叶片锁紧紧固件和两个“经典”叶轮组成。请注意，除了第一级和最后一级的轮外，每个带有建议阻尼器的带有工作叶片阻尼振动的转子叶轮都可以是两个火花的一部分。提出了HPC的转子，它由两个叶轮的一对组成-第一级和第二级叶轮，第二级叶轮和“经典”第三级叶轮的双叶，以及“经典”叶轮的第三级叶轮。从第四步到第六步的单轮以及带有迷宫式密封齿的碟盘。第一阶段的叶轮与带有迷宫式密封件齿的环制成一体。第二阶段的叶轮–带有迷宫式密封齿的环，以及用于固定到第一阶段的叶轮和HPC转子轴的法兰，以及“经典”轮和单轮–带环的迷宫式密封的齿和用于固定到第二级叶轮或第三级叶轮的法兰。叶片借助“燕尾槽”安装在“经典”第三级轮上，并通过止推环固定在轴向上，止推环固定在第三级轮辋的前端和第二级轮缘的法兰上双轮。具有HPC转子第四至第六级的叶片安装在单个叶轮HPC转子的三个异形环槽中。这些刀片的平台彼此紧密配合，从而确保了刀片在切线方向上的可靠固定。在HPC转子的每个双胞胎的第一轮叶片上，在三叶轮和第三级“经典”叶轮的叶片上，羽毛都没有梯形或梯形的四边形碎片。一个矩形，其一侧是叶片羽毛的后缘。在叶片顶端，用作上底的侧面与该四边形侧面之间的内角被倒圆，并且该角度等于或大于90°。该叶轮或“经典”轮的圆盘边缘仅在刀片叶片根部的长度上制成。 “经典”轮的叶片锁的长度等于或小于盘的轮辋的长度，并且叶片锁不从轮辋的端部突出。凸缘具有与轮的轴线同心的环形凹槽。在该凹槽的外层架上，形成有第一双轮的径向相等的往复运动叶片，该双轮附接至该双叶片。在具有干扰的环形槽中插入结构阻尼的环形弹性滞后元件，并在径向定位的槽中插入其底部无间隙或沿槽壁的间隙很小的底部，例如具有小于0.02 mm的间隙，在平面中精确地重复凹槽形状的摩擦元件由底部组成，该摩擦元件的底部与弹性滞后元件一起插入到止挡，而羽毛的几何形状为从每个工作刀片中抽出的四边形，其横截面精确地重复了所捕获的刀片叶片的横截面的几何形状。第二个双轮以这样的方式固定，即每个摩擦元件的滑移准确地代替了叶片的卡住部分。在这种情况下，由于弹性滞后元件的大的弹性变形而产生了期望的载荷量，该期望的载荷量将摩擦元件压靠在叶片的叶片的与摩擦元件的毛羽的上端接触的一侧上，完全或不完全将其拉直，并且在发动机的所有运行条件下，这些元件还通过摩擦元件的质量产生的离心力相互挤压。在第一双轮毂的轮缘的端部与摩擦元件的底座的相对表面之间，干涉为零或存在小的间隙，例如0.01÷0.02mm。摩擦元件的基底的厚度及其外表面的形状使得在组装的双胞胎中，摩擦元件的基底的外表面构成一个表面。

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