SU585425A1

SU585425A1 - Stand for testing universal joints

Info

Publication number: SU585425A1
Application number: SU762395398A
Authority: SU
Inventors: Вениамин Яковлевич Анилович; Вадим Леонидович Литвиненко; Владимир Александрович Литвинов; Анатолий Михайлович Сигаев; Виктор Леонидович Лютынский; Борис Айзикович Розенцвайг
Original assignee: Харьковский Институт Механизации И Электрификации Сельского Хозяйства; Харьковский Тракторный Завод
Priority date: 1976-08-02
Filing date: 1976-08-02
Publication date: 1977-12-25

Description

II

Изобретение относитс к области испь тательных машин и стендов.The invention relates to the field of testing machines and stands.

Известен стенд дл испытани карданных передач, содержащий электродвигатель с п&редаточным механизмом, два вала, нагруж юшую пружину, рычаги нагружател статичеоким и динамическим моментами, св занные с помощью рычажной системы с инерционным вибратором, имеющим подвижную опору l .A stand for testing cardan gears is known, which contains an electric motor with a & gear mechanism, two shafts, a loading spring, load levers with static and dynamic moments, which are connected by means of a lever system with an inertial vibrator having a movable support l.

При работе такого стенда карданные механизмы наход тс в различных услови х гружени , так как значительна радиальна нагрузка, возникающа вследствие вращени промежуточного вала, передаетс на шины и торцовые поверхности шарниров средних кар данных механизмов, что вызывает дополнательный их взнос, нагревание иискажаетдейст вительные услови их работы.When such a stand is in operation, the cardan mechanisms are under various loading conditions, since a significant radial load arising due to the rotation of the intermediate shaft is transmitted to the tires and front surfaces of the hinges of the middle car data mechanisms, which causes their additional contribution, heating, and realizes their work conditions. .

Крайние карданные механизмы наход тс в различных услови х динамического нагруже- НИИ в св зи с тем, что переменные нагрузки пр кладьшаютс толькос одной сторрны последователь но соединенных карданных пере дач и промежуточного вала, которые представл ютсобой упругую |данамическую систему. Extreme cardan mechanisms are under various dynamic loading conditions due to the fact that variable loads are applied only on one side of successively connected cardan shafts and intermediate shaft, which are elastic | danamic system.

Различные услови нагружени затрудн ют сопоставление результатов испытаний, полученных дл отдельных карданных механизмов, одновременно испытываемых на стенде.Different loading conditions make it difficult to compare test results obtained for individual cardan mechanisms simultaneously tested on the stand.

Целью изобретени вл етс повышение точности получаемых на стенде результатов испытаний.The aim of the invention is to improve the accuracy of the test results obtained at the stand.

Эта цель достигаетс благодар тому, что предлагаемый стенд снабжен рамойс 5диненнеЛ передаточным механизмом, который вЬШопнен кривошипно-шатунным: рычажна системавыполнена в виде симметрично расположенных т г равной длины, св занных с помошою ценр ральной т ги с нагружающей пружиной, а с помощью рычага - с подвижной опорой вибратора , валы установлены параллельно друг дру гу и соединены с одной стороны с рычагами нагружател , выполненными равной длины и раоположенными параллельной центральной т ге, котора размещена на равном рассто нии от валов в плоскости, перпендикул рной ос м этих валов.This goal is achieved due to the fact that the proposed stand is equipped with a frame with a 5-pinna transmission mechanism, which is mounted on a crank drive: the lever is made in the form of symmetrically arranged tons of equal length, connected with a loading spring, and with the help of a lever vibrator support shaft, shafts are installed parallel to each other and are connected on one side with loading arm arms of equal length and positioned parallel to the central rod, which is located at equal distance From the shafts in the plane perpendicular to the axis of these shafts.

Claims

It is advisable to load the levers of the load in the form of flat leaf springs, and to install the movable support of the vibrator on the lever so that it can be fixed at any distance from the axis of swing of the lever within its length. The drawing shows a kinematic diagram of the stand for testing the hinges of card mechanisms. The stand contains a base 1, an electric motor 2 with a transmission mechanism 3, made of a crankshaft-connecting rod 1st, two parallel shaft 4 rigidly connected to one hundred pQHbi with levers 5 loading the static and dynamic moments, a lever system with symmetrically located inclined loads. 6, a central thrust 7 and a loading spring 8, as well as a lever 9 on which an inertial vibrator is made on the movable support 10, made in the form of a rotating shaft 11 with replaceable, unbalanced masses 12 and a drive 13, to the shaft ends 4 crepe ts forks. ki 14 test cardan mechanisms. The forks 15 of the cardan mechanisms are fixed with its fixed frame 16, as the crosses 17, movably connected to the forks, are located in the same plane. The cardan mechanisms can be installed in four different positions, determined by the angles with and between the respective crosses and the axis passing through the colors of the crosses: 1 О cCj 2 90 °; 45 °; 45 °, df 135, When installed in positions I and K, the relative rotation when swinging 16 will occur only in the hinges lying on the swing axis of the frame. When installed in the PG and IV positions, the relative rotation will occur in all the hinges of the cardan mexaiiH3MOB , approximately equal to half the swing angle of the frame; The system is loaded with a static moment by means of a spring 8, a central rod 7, inclined pipes 6 and a lever 5, the system is loaded with a dynamic moment by a drive 13 of the inertial vibrator using interchangeable masses 12, The magnitude of the dynamic load is also regulated by peremeluiia vibrator support 10 and 9. The relative rotation in the hinges of the cardan mechanisms is carried out by bringing in the reciprocating movement 16 of the crank-and-rod mechanism 3 from the electric motor 2. conditions for loading the universal joints and thereby increasing the accuracy of the obtained test results. Claim 1, Stand for testing the joints of the card mechanisms, containing an electric motor, with a transmission mechanism, two shafts, a loading spring, load levers with static and dynamic moments, connected with an operating vibrator having a movable support using a lever system. Characterized in that, in order to increase the accuracy of the results obtained. HE is equipped with a frame connected to a gear mechanism, which is made of curved shaft, the lever system is made in the form of symmetrically located tg of equal length, connected with help of a central spring with a loading spring, and using a lever with a movable support of the vibrator, the shafts mounted parallel to each other and connected to one side with load handles, made equal to LONG and arranged parallel to the central link, which is placed on. Equal to the distance Yeshi from the shafts in the plane, the perpendicular axes of these shafts, 2, Stand according to claim 1, which is distinguished by the fact that the loading arms are made in the form of flat leaf springs. 3, Stand according to Claim 1, differing in that the movable support of the vibrator is mounted on the lever with the possibility of fixing at any distance from the axis the swing of the lever within its length. Sources of information taken in BEI mannie during examination: 1, USSR Author's Certificate N 396578, class, G-01 M 13/02, 1971,