SU1645667A1

SU1645667A1 - Hydraulic remote control device

Info

Publication number: SU1645667A1
Application number: SU894698108A
Authority: SU
Inventors: Виталий Сергеевич Щербаков; Михаил Алексеевич Гольчанский; Сергей Тимофеевич Бирюков; Михаил Леонидович Сысков
Original assignee: Сибирский автомобильно-дорожный институт им.В.В.Куйбышева
Priority date: 1989-05-31
Filing date: 1989-05-31
Publication date: 1991-04-30

Abstract

Изобретение относитс к области гидроавтоматики и может быть использовано в приводах управлени рабочими органами дорожно-строительных машин Целью изобретени вл етс расширение диапазона управлени . Шаговый электродвигатель 1 поворачивает задающий элемент 3 на определенный угол поворота, соответствующий совмещению каналов 7 и 31 Рабоча жидкость поступает через окно 24 и канал 31 в канал 4 и через отверстие 38 и камеру 16 в окно 22, соединенное с полостью исполнительного механизма, окно 24 разъедин етс с окном 22. Одновременно давление в камере 16 вызывает перемещение золотника 19 который по ском 28 перекрывает канал 31 прекраща повышение давлени в камере 16 и окне 22, Дальнейший поворот элемента 3 в том же или обратном направлении выз( i- вает повышение или соответственно уменьшение давлени в полости исполнительного механизма пропорционально углу поворота элемента 3 6 ил (Л СThe invention relates to the field of hydraulics and can be used in drives to control the working bodies of road-building machines. The aim of the invention is to expand the range of control. Stepper motor 1 turns the driver 3 at a certain angle of rotation corresponding to the combination of channels 7 and 31 The working fluid enters through the window 24 and the channel 31 into the channel 4 and through the hole 38 and the camera 16 into the window 22 connected to the cavity of the actuator, window 24 is disconnected with the window 22. At the same time, the pressure in the chamber 16 causes movement of the spool 19 which, in turn, 28 closes the channel 31, stopping the increase in pressure in the chamber 16 and the window 22, Further rotation of the element 3 in the same or reverse direction of call (i-va t respectively increase or decrease the pressure in the cavity of the actuator in proportion to the rotation angle element 3 June yl (LS

Description

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Claims

Claim

A hydraulic remote control device containing a rotary driving element located in the bore of the sleeve with intersecting axial and radial channels and with external grooves connected with two switching chambers of the control element, the bore windows of which are connected to the source of the working fluid, the drain and the cavities of the actuator, characterized in that, in order to expand the control range, the control element is made in the form of two triple spools spring-loaded with one spring, times Sequentially in the bore, one of the switching chambers is located on the ends of the spools opposite to the spring and connected directly to the cavities of the actuator, and the master element is made with an additional axial channel, each axial channel connected to one of the grooves and crossed by half of the radial channels, and the latter are evenly placed along its axis with 5 angular displacement, while in the sleeve on the course of the middle belt of each spool, connecting channels are made, placed last With a step equal to the distances between the radial channels of the master element, with the possibility of alternating interaction with the latter.

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