SU896437A2

SU896437A2 - Rotor balancing method

Info

Publication number: SU896437A2
Application number: SU792847008A
Authority: SU
Inventors: Анатолий Яковлевич Васильев; Виктор Рашидович Зименков; Анатолий Яковлевич Коновалов
Original assignee: Предприятие П/Я Р-6324
Priority date: 1979-12-04
Filing date: 1979-12-04
Publication date: 1982-01-07

Description

(54) СПОСОБ БАЛАНСИГОВКИ РОТОРОВ(54) METHOD OF ROTOR BALANCING

1one

Изобретение относитс к измерительной технике и может быть использовано дл балансировки составных межопорных роторов с дво кой жесткостью .The invention relates to a measurement technique and can be used for balancing composite inter-support rotors with double stiffness.

По основному авт.св. №571723 известен способ балансировки роторов, заключающийс в том, что установленный на опорах ротор разгон ют до частоты балансировки, замер ют величины и углы начальных дисбалансов в двух плоскост х коррекции, затем по лини м действи начальных дисбалансов в указанных плоскост х производ т коррекцию остаточных дисбалансов , положение которых фиксируют по величине и направлению, затем в одной из плоскостей провод т коррекцию массой, величину которой и ее угловое положение относительно начального дисбаланса выбирают при минимальной реакции опор l .According to the main auth. No. 571723, a method of balancing rotors is known, which means that the rotor mounted on the supports is accelerated to the frequency of balancing, the magnitudes and angles of the initial imbalances in the two correction planes are measured, then the residual imbalances, the position of which is fixed in magnitude and direction, then in one of the planes the mass is corrected, the magnitude of which and its angular position relative to the initial imbalance are selected at the minimum l supports response.

Недостаток способа состоит в том что не учитываетс расположение остаточных дисбалансов относительно плоскостей наибольшей жесткости ротора . Это приводит к большим динамическим нагрузкам на эксплуатационной частоте вращени из-за несовпадени плоскости действующих динамических сил с плоскост ми наибольшей жесткости ротора.The disadvantage of the method is that the arrangement of residual imbalances with respect to the planes of greatest rigidity of the rotor is not taken into account. This leads to high dynamic loads at the operational rotational frequency due to the discrepancy between the plane of the acting dynamic forces and the planes of greatest rigidity of the rotor.

Цель изобретени - снижение динамических нагрузок на рабочих часто10 тах вращени и повышение ресурса работы составных межопорных роторов с дво кой жесткостью.The purpose of the invention is to reduce the dynamic loads at the working frequencies of rotation and increase the service life of composite interstitial rotors with double stiffness.

kk

Эта цель достигаетс тем, что This goal is achieved by the fact that

IS определ ют плоскости наибольшей жестKoiCTH ротора, располагают в них и в плоскост х коррекции кососимметрич .но корректирующие массь так, чтобы векторы остаточных дисбалансов совпа20 дали с направлением наибольшей жесткости ротора.The ISs determine the planes of the highest KoiCTH rotor stiffness, position in them and, in the planes of the correction, skew-correcting masses so that the residual imbalance vectors coincide20 with the direction of the greatest rigidity of the rotor.

Claims

The method is carried out in the following manner. 3 The rotor mounted on the supports is driven up to the rotation frequency during balancing. Thereafter, the magnitudes and angles of the initial imbalances in the two correction planes are measured. The adjustment of the correction masses in the plane of correction is made taking into account the final angular position of the residual imbalances, which is chosen with minimal support reactions, assuming that the same direction of residual imbalances leads to the summation of the components of the intermotor rotor, and the bones of the constituent support reactions. One of the corrective masses is established strictly along the line of action of the initial unbalance by removing or setting the material until the allowable value of the residual unbalance is obtained in this plane. Another corrective mass is placed with a deviation of a certain angle from the line of action of the initial unbalance, and the corrective mass is chosen so that the angular position of the residual unbalance in this plane is opposite to the residual unbalance previously obtained in another plane of correction. Then, the planes of the greatest rigidity of the rotor are determined, and in them, in the correction planes, skew-symmetrical corrective masses so that the residual unbalance vectors Docm coincide with the direction of the greatest rigidity of the rotor. Since residual imbalances are located in the planes of greatest rigidity, and the deflection caused by residual imbalances in planes of greatest rigidity is minimal or absent, the support reactions decrease with the proposed balancing method. The use of the proposed balancing method makes it possible to significantly reduce the load on the supports, to increase the service life and reliability of composite interbody support rotors with double stiffness. Claims The method of balancing rotors according to bus No. 571723, characterized in that, in order to reduce dynamic loads at operating rotation frequencies and increase the service life of composite interstitial rotors with double rigidity, the planes of the greatest rigidity of the rotor are determined, and in planes of correction, kososymmetrically corrective masses so that the residual imbalance vectors coincide with the direction of the greatest rigidity of the rotor. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 571723, cl. G 01 M 1/14, 1976 (ProGOTIP).