RU2012131690A

RU2012131690A - ELECTROMECHANICAL LINEAR DRIVE

Info

Publication number: RU2012131690A
Application number: RU2012131690/11A
Authority: RU
Inventors: Анатолий Алексеевич Алексашин; Валентин Евгеньевич Урсу
Priority date: 2012-07-25
Filing date: 2012-07-25
Publication date: 2014-01-27
Also published as: RU2522646C2

Abstract

1. Электромеханический линейный привод, состоящий из корпуса; расположенного внутри корпуса электродвигателя с ротором, установленным в подшипниках и соединенным через редуктор с винтом винтового или шарико-винтового механизма; датчика положения ротора электродвигателя; толкателя, размещенного в корпусе с возможностью поступательного движения, и имеющего стопор, исключающий его вращение относительно корпуса; отличающийся тем, что редуктор является волновым, по меньшей мере, одноступенчатым, и имеет размещенный на валу ротора волнообразователь, состоящий, по меньшей мере, из двух эксцентриков с противоположно направленными эксцентриситетами с установленными на них подшипниками и рабочими кольцами; охватывающий волнообразователь и соединенный с корпусом сепаратор с размещенными в нем промежуточными телами вращения, взаимодействующими с рабочими кольцами; охватывающее сепаратор жесткое колесо с внутренней волновой поверхностью, имеющее установленный соосно с ротором электродвигателя вал, соединенный с винтом непосредственно или через одну или несколько промежуточных ступеней.2. Устройство по п.1, отличающееся тем, что редуктор является двухступенчатым и имеет установленный на валу жесткого колеса второй волнообразователь; охватывающий второй волнообразователь и соединенный с корпусом сепаратор второй ступени с размещенными в нем промежуточными телами вращения, взаимодействующими с рабочими кольцами; жесткое колесо второй ступени с внутренней волновой поверхностью, охватывающее сепаратор и имеющее установленный соосно с ротором электродвигателя выходной вал, соединенный с винтом.3. Устройст1. Electromechanical linear actuator, consisting of a housing; located inside the motor housing with a rotor mounted in bearings and connected through a gearbox with a screw of a screw or ball screw mechanism; motor rotor position sensor; a pusher placed in the housing with the possibility of translational motion, and having a stopper preventing its rotation relative to the housing; characterized in that the gearbox is wave, at least one-stage, and has a wave former placed on the rotor shaft, consisting of at least two eccentrics with oppositely directed eccentricities with bearings and working rings mounted on them; covering a wave-forming device and connected to the housing of the separator with intermediate bodies of revolution located in it, interacting with the working rings; a hard wheel enclosing the separator with an internal wave surface, having a shaft mounted coaxially with the rotor of the electric motor, connected to the screw directly or through one or more intermediate stages. 2. The device according to claim 1, characterized in that the gearbox is two-stage and has a second wave former mounted on the shaft of the hard wheel; covering the second wave-former and connected to the housing, the separator of the second stage with the intermediate bodies of rotation placed in it, interacting with the working rings; a hard wheel of the second stage with an internal wave surface, covering the separator and having an output shaft mounted coaxially with the rotor of the electric motor, connected to the screw. 3. Device

Claims

1. Electromechanical linear actuator, consisting of a housing; located inside the motor housing with a rotor mounted in bearings and connected through a gearbox with a screw of a screw or ball screw mechanism; motor rotor position sensor; a pusher placed in the housing with the possibility of translational motion, and having a stopper preventing its rotation relative to the housing; characterized in that the gearbox is wave, at least one-stage, and has a wave former placed on the rotor shaft, consisting of at least two eccentrics with oppositely directed eccentricities with bearings and working rings mounted on them; covering a wave-forming device and connected to the housing of the separator with intermediate bodies of revolution located in it, interacting with the working rings; a hard wheel enclosing the separator with an internal wave surface, having a shaft mounted coaxially with the rotor of the electric motor, connected to the screw directly or through one or more intermediate stages.

2. The device according to claim 1, characterized in that the gearbox is two-stage and has a second wave former mounted on the shaft of the hard wheel; covering the second wave-former and connected to the housing, the separator of the second stage with the intermediate bodies of rotation placed in it, interacting with the working rings; a hard wheel of the second stage with an internal wave surface, covering the separator and having an output shaft mounted coaxially with the rotor of the electric motor, connected to the screw.

3. The device according to claim 1, characterized in that the electric motor is brushless, direct current, with an adjustable rotor speed.

4. The device according to claim 2, characterized in that the maximum rotational speed of the rotor of the electric motor is in the range of 3000 ... 20,000 min ^-1 .