SU924537A1

SU924537A1 - Loader

Info

Publication number: SU924537A1
Application number: SU802986128A
Authority: SU
Inventors: Семен Иванович Гончаров; Николай Дмитриевич Паршин; Александр Николаевич Болтышев
Original assignee: Новочеркасский Ордена Трудового Красного Знамени Политехнический Институт Им.С.Орджоникидзе
Priority date: 1980-09-18
Filing date: 1980-09-18
Publication date: 1982-04-30

Description

(5) НАГРУЖАТЕЛЬ(5) LOADER

II

Изобретение относитс к машиностроению , а именно к испытательной технике и может быть использовано в стендах дл испытани передач вращательного движени , а также в каче стве возбудител механических колебаний .The invention relates to mechanical engineering, in particular to testing equipment, and can be used in test benches for testing transmissions of rotational motion, as well as as an exciter of mechanical vibrations.

Наиболее близким по технической сущности и достигаемому эффекту к изобретению вл етс нагружатель, содержащий.ведущий и ведомый валы, св зывающую их электромагнитную порошковую муфту, дополнительный вал, зубчатую передачу, одно колесо которой жестко закреплено на дополнительном валу, и привод, соединенный с ведущим валом t.1 .The closest in technical essence and the achieved effect to the invention is the loader containing the driving and driven shafts, connecting their electromagnetic powder coupling, additional shaft, gear drive, one wheel of which is rigidly fixed on the additional shaft, and the drive connected to the drive shaft t.1.

Недостаток известного нагружател заключаетс в том, что он создает на ведомых валах только знакопосто нный крут щий момент.A disadvantage of the known load is that it creates only sign-constant torque on the driven shafts.

Цель изобретени расширение диапазона создаваемых режимов нагружени .The purpose of the invention is the expansion of the range of created load modes.

Указанна цель достигаетс тем, что, нагружатель снабжен дополнительным приводом, св занным с дополнительным валом, и упругим элементом, один конец которого прикреплен к ведомому валу, другой - к другому колесу зубчатой передачи, а последнее установлено с возможностью поворота на ведомом валу.This goal is achieved by the fact that the loader is equipped with an additional drive associated with the additional shaft and an elastic element, one end of which is attached to the driven shaft, the other to the other gear wheel, and the latter is installed with the possibility of rotation on the driven shaft.

На чертеже изображена принципи10 альна схема нагружател .The drawing shows the principle of a 10 load circuit diagram.

Нагружатель содержит ведущий 1 и ведомый 2 валы, св зывающую и электромагнитную порошковую муфту 3, дополнительный вал 4, зубчатую The loader contains a driving 1 and driven 2 shafts, connecting and electromagnetic powder coupling 3, additional shaft 4, gear

Claims

IS transmission, one wheel 5 of which is rigidly fixed on the additional shaft, and the other 6 is rotatable on the driven shaft 2, to which one end of the elastic element 7 is attached, the other end of which is fixed on the gear wheel 6. Drive 8 and additional drive 9 connected respectively with the shafts 3. 9 1 and 4, and the operating modes of the coupling 3 and the actuators 8 and 9 are set by the control system 10. The loader works as follows. The drive shaft 1 is reported to continuously rotate from the drive 8. According to the signal of the control system 10, the electromagnetic powder clutch 3 is triggered and the movement is transmitted to the driven shaft 2. Simultaneously, the right end of the elastic element 7 accumulates potential energy and creates on the driven shaft 2 loading torque opposite to its direction of rotation. Additional shaft 4 is fixed. When coupling 3 is disconnected, the kinematic connection between shafts 1 and 2 is broken, and the driven shaft 2 returns to its original position under the action of the elastic element 7 When the coupling 3 is re-activated, the cycle repeats and the driven shaft / 2 performs torsional vibrations. water 9 (clutch 3 is disconnected; rotation is transmitted to the auxiliary shaft, gear wheels 5 and 6, at the other element 7 and the driven shaft 2, which is loaded with a torque moment coinciding with its direction of rotation. When the clutch 3 and the auxiliary drive are activated and 9 there is an accumulation of movements and are created) load on the driven shaft

2. Regulation by the control system 10 of the moments of switching on and off of the clutch 3 and the additional actuator 9 ensures the creation of the required load and oscillatory motion on the driven shaft 2 determined by the oscillatory characteristics of the system, the dynamic properties of the clutch 3 and the drive 8 and 9, as well as the duty cycle of the control pulses from the control system 10 and the introduction of feedback into it. In the case of use in vibrostands, the rotational motion of the driven shaft must be converted into translational motion by any known mechanism. Such a load-bearing design permits to create on the driven shaft, in addition to signed and alternating torques, thereby expanding the range of generated load modes. Claims of Invention A loading shaft comprising a drive and driven shaft, an electromagnetic shaft coupling connecting them, an additional shaft, a gear drive, one wheel of which is rigidly fixed on the additional shaft, and a drive connected to the drive shaft, characterized in that in order to expand the range of modes of loading, it is provided with an additional drive associated with the additional shaft and an elastic element, one end of which is attached to the driven shaft, the other end to the other gear wheel, and the last It becomes rotatably on the driven shaft. Sources of information taken into account in the examination 1. USSR author's certificate, cl. G 01 M 7/00, 1966 (prototype).