SU813194A1

SU813194A1 - Multi-contact roller-type testing machine

Info

Publication number: SU813194A1
Application number: SU792706043A
Authority: SU
Inventors: Владимир Тимофеевич Абрамов; Михаил Дмитриевич Коровкин; Михаил Эдуардович Ловчишко; Валентин Александрович Рясный; Виктор Андреевич Ткаченко
Original assignee: Харьковский Авиационный Институтим. H.E.Жуковского
Priority date: 1979-01-02
Filing date: 1979-01-02
Publication date: 1981-03-15

Description

Изобретение относится к испытательной технике и может быть использовано для моделирования работы высших кинематических пар, например зубчатых или фрикционных передач.The invention relates to testing equipment and can be used to simulate the work of higher kinematic pairs, such as gears or friction gears.

Наиболее близкой к предложенной является многоконтактная роликовая испытательная машина, Содержащая корпус, контактирующие друг с другом испытуемые ролики, оси которых параддельны, узел нагружения и привод вращения роликов [1].Closest to the proposed one is a multi-contact roller testing machine, comprising a housing, test rollers in contact with each other, the axes of which are parallel, the loading unit and the rotation drive of the rollers [1].

Недостатком данной машины является то, что передача сигналов с валов, выполненных подвижными, на регистрируй 15 ющую аппаратуру снижает точность ис пытания и усложняет конструкцию машины.The disadvantage of this machine is that the transmission of signals from shafts made movable to the recording equipment reduces the accuracy of the test and complicates the design of the machine.

Цель изобретения - повышение точ- 20 ности.The purpose of the invention is to increase accuracy.

Эта цель достигается тем, что привод вращения выполнен в виде планетарной передачи, сателлиты которого шарнирно соединены с роликами, уста- 25 новленными на корпусе с возможностью вращения, а на валу неподвижного ролика установлен датчик момента трения.This goal is achieved by the fact that the rotation drive is made in the form of a planetary gear, the satellites of which are pivotally connected to the rollers mounted on the housing for rotation, and a friction torque sensor is installed on the shaft of the stationary roller.

На чертеже представлена схема · предлагаемой машины. 30The drawing shows a diagram · of the proposed machine. thirty

Многоконтактная роликовая испытательная машина содержит корпус 1, планетарный привод вращения, выполненный в виде водила 2, центрального зубчатого колеса 3 и сателлитов 4 и 5, испытуемые ролики 6 - 8 и узел 9 нагружёния. Один из роликов 6, яв-. ляющийся центральным, установлен на неподвижном валу 10, на котором размещен датчик 11 момента трения. Ролики 7 и 8 установлены соответственно на валах 12 и 13, которые шарнирно связаны с водилом 2 и сателлитами 4 и 5.The multi-contact roller testing machine comprises a housing 1, a planetary rotation drive made in the form of a carrier 2, a central gear 3 and satellites 4 and 5, test rollers 6 - 8 and a load unit 9. One of the clips 6, jav-. central, mounted on a fixed shaft 10, on which the sensor 11 of the moment of friction. The rollers 7 and 8 are mounted respectively on the shafts 12 and 13, which are pivotally connected to the carrier 2 and the satellites 4 and 5.

Машина работает следующим образом.The machine operates as follows.

Испытуемые ролики 6-8 прижимают друг к другу с помощью узла 9 нагружения заданным усилием. Водило 2 приводит во вращение с заданным числом оборотов от электродвигателя (не показан). Движение обкатки роликам 7 и 8 передается сателлитами 4 и 5 и водилом 2 через валы 12 и 13. Величины угловой скорости обкатки и скорости скольжения между роликами обеспечиваются изменением угловой скорости водила 2 и подбором размеров сателлитов 4 и 5 и центрального зубчатого ^колеса 3. Силы трения, возникающие в зоне контакта роликов, вызываютι закручивание ролика б и связанного с ним неподвижного вала 10, что фиксируется датчиком 11. Сигнал с датчика 11 поступает На регистрирующую аппаратуру.The test rollers 6-8 are pressed against each other by means of the loading unit 9 with a predetermined force. The carrier 2 drives in rotation with a predetermined number of revolutions from an electric motor (not shown). The running-in motion of the rollers 7 and 8 is transmitted by the satellites 4 and 5 and the carrier 2 through the shafts 12 and 13. The angular speed of the running and sliding speed between the rollers are provided by changing the angular velocity of the carrier 2 and the selection of the sizes of the satellites 4 and 5 and the central gear wheel 3. Forces Friction arising in the contact zone of the rollers causes the roller b to spin and the fixed shaft 10 connected with it, which is detected by the sensor 11. The signal from the sensor 11 is transmitted to the recording equipment.

Использование данной машины позволяет повысить точность за счет замены подвижного токосъемника неподвижным, что исключает потери и искажения передаваемого сигнала.Using this machine allows you to increase accuracy by replacing the movable current collector fixed, which eliminates the loss and distortion of the transmitted signal.

Claims

The invention relates to a testing technique and can be used to simulate the operation of higher kinematic pairs, for example, gear or friction gears. Closest to the proposed is a multi-contact roller test mucin, containing a case, test rollers in contact with each other, the axes of which are parallel, the loading unit and the drive rotation of the rollers 11. The disadvantage of this machine is that the transmission of signals from the shafts made by the sliders , on registering equipment reduces the accuracy of testing and complicates the design of the machine. The purpose of the invention is to increase accuracy. This goal is achieved by the fact that the rotational drive is made in the form of a planetary gear, the satellites of which are pivotally connected to the rollers mounted on the housing for rotation, and a friction torque sensor is installed on the fixed roller shaft. The drawing shows the diagram of the proposed machine. The multi-contact roller testing machine comprises a housing 1, a planetary rotary drive, made in the form of a carrier 2, a central gear wheel 3 and satellites 4 and 5, test rollers 6-8 and a loading unit 9. One of the rollers 6, in-. The central shaft is mounted on a fixed shaft 10, on which the friction torque sensor 11 is placed. Rollers 7 and 8 are mounted respectively on shafts 12 and 13, which are hingedly connected with carrier 2 and satellite 4 and 5. The machine works in the following way. The test rollers 6-8 are pressed to each other by means of a loading unit 9 with a force of effort. Drove 2 leads to rotation with a given number of revolutions from the electric motor (not shown). The running of the rollers 7 and 8 is transmitted to the satellites 4 and 5 and the planet carrier 2 through shafts 12 and 13. The values of the angular speed of running and sliding speed between the rollers are provided by varying the angular speed of carrier 2 and adjusting the sizes of satellites 4 and 5 and the central gear 3. , arising in the contact zone of the rollers, cause the roller b to twist and the fixed shaft 10 associated with it, which is fixed by the sensor 11. The signal from the sensor 11 is received by the recording equipment. The use of this machine makes it possible to increase the accuracy by replacing the movable current collector with a fixed one, which eliminates losses and distortion of the transmitted signal. Multi-Contact Roller Testing Machine, comprising a housing 944 in contact with each other test rollers whose axes are parallel, a loading unit and a roller rotation drive, which, in order to improve accuracy, the rotation drive is made in the form of a planetary gear, satellites - which is pivotally connected to the rollers, mounted w on the housing with the possibility of rotation, and the sensor of the moment of friction is installed on the shaft of the fixed roller. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 381966, cl. G 01 N 3/56, 1973 (prototype).