SU1264024A1

SU1264024A1 - Method for testing hydromechanical sets

Info

Publication number: SU1264024A1
Application number: SU853838647A
Authority: SU
Inventors: Анатолий Иванович Гулиенко; Виктор Николаевич Мацияк; Валерий Емельянович Раковский
Original assignee: Предприятие П/Я В-2504
Priority date: 1985-01-03
Filing date: 1985-01-03
Publication date: 1986-10-15

Abstract

Изобретение относитс к способам испытаний гидромеханических агрегатов . Цель изобретени - повьшение точности определени характеристик агрегатов при вы влении резонансных влений. Способ испытани гидромеханических агрегатов ос ществл етс путем подачи вибрационных возмущений на агрегат с одновременным сн тием его характеристик. Повышение точности определени .характеристик достигаетс тем, что одно из вибрационных возмущений задают в виде колебаний рабочей среды в гидравлическом тракте агрегата, причем возмущени согласуют между собой по частоте и по фазовому сдвигу между ними. с 1 ил. 9This invention relates to methods for testing hydromechanical assemblies. The purpose of the invention is to increase the accuracy of determining the characteristics of the aggregates when detecting resonant phenomena. The method of testing hydromechanical units is implemented by applying vibration disturbances to the unit while simultaneously removing its characteristics. Improving the accuracy of determining the characteristics is achieved by the fact that one of the vibration disturbances is set in the form of oscillations of the working medium in the hydraulic path of the unit, and the disturbances are coordinated with each other in frequency and phase shift between them. from 1 il. 9

Description

Изобретение относится к способам испытаний гидромеханических агрегатов .The invention relates to methods for testing hydromechanical units.

Цель изобретения - повышение точности определения характеристик агрегатов при выявлении резонансных явлений.The purpose of the invention is to increase the accuracy of determining the characteristics of aggregates in the identification of resonance phenomena.

На чертеже показана схема стенда, реализующего способ.The drawing shows a diagram of a stand that implements the method.

Стенд состоит из гидравлического пульсатора 1, вибратора 2, на платформе которого устанавливается испытуемый агрегат 3. Привод исполнительного органа пульсатора осуществляется валом 4, а вибратора - валами 5 и 6. На валу 6 устанавливается эксцентрик 7, задающий колебания кор пуса агрегата 3. Валы 5 и 6 соединяются муфтой 8, которая позволяет дискретно изменять взаимное расположение валов 5 и 6. Вращение этих валов осуществляется через коробку передач 9 приводом 10. При включенииThe stand consists of a hydraulic pulsator 1, a vibrator 2, on the platform of which the unit under test is installed 3. The actuator of the pulsator is driven by the shaft 4, and the vibrator by the shafts 5 and 6. An eccentric 7 is installed on the shaft 6, which sets the vibrations of the body of the unit 3. Shafts 5 and 6 are connected by a clutch 8, which allows you to discretely change the relative position of the shafts 5 and 6. The rotation of these shafts is carried out through the gearbox 9 drive 10. When you turn on

1264024 * привода .10 начинают вращаться валы 4 и 5 с различными частотами. Муфтой 8 обеспечивается определенное положение вала 6 и тем самым обеспечи5 вается необходимая фаза между пульсацией рабочей среда и вибрацией корпуса агрегата при снятии характеристик агрегата.1264024 * of the .10 drive, shafts 4 and 5 begin to rotate at different frequencies. The clutch 8 provides a certain position of the shaft 6 and thereby provides the necessary phase between the pulsation of the working medium and the vibration of the unit body when taking the characteristics of the unit.

Claims

This invention relates to methods for testing hydromechanical assemblies. The purpose of the invention is to increase the accuracy of determining the characteristics of the aggregates when detecting resonant phenomena. The drawing shows the scheme of the stand, the implementation of the method. The stand consists of a hydraulic pulsator I, a vibrator 2, on the platform of which the tested aggregate 3 is installed. The actuator of the pulsator is driven by a shaft 4, and a vibrator by shafts 5 and 6. An eccentric 7 is mounted on the shaft 6, which causes oscillations of the aggregate casing 3. Shafts 5 and 6 are connected by a clutch 8, which allows the relative position of the blows 5 and 6 to vary discretely. The shafts are rotated through the gearbox 9 by the drive 10. When the drive 4 is turned on .10, the shafts 4 and 5 start to rotate with different frequencies. Coupling 8 provides a certain position of the shaft 6 and thus provides the necessary phase between the pulsation of the working medium and the vibration of the housing of the unit when the characteristics of the unit are taken. The invention of the method of testing the electrical components with aggregates by applying vibration disturbances, with the fact that, in order to improve the accuracy of determining the characteristics of the aggregates when revealing resonant phenomena, one of the vibration disturbances is given in type of oscillations of the working medium in the hydraulic path of the unit, and the disturbances are coordinated among themselves in frequency and phase shift between them.