SU698713A1

SU698713A1 - Hydraulic vibration device

Info

Publication number: SU698713A1
Application number: SU782624580A
Authority: SU
Inventors: Валерий Петрович Якубович; Олег Леонидович Гайдамак
Original assignee: Винницкий политехнический институт
Priority date: 1978-06-07
Filing date: 1978-06-07
Publication date: 1979-11-25

Description

Изобретение относитс к обработке металлов давлением и может найти применение в системах управлени прессов вибрационного и ударного действи .The invention relates to the processing of metals by pressure and may find application in control systems for vibratory and impact presses.

Известно гидравлическое вибрационное устройство, содержащее силовой цилиндр с поршнем, раздел ющим цилиндр на наполнительную и сливную полости, ударную массу с подъемным ступенчатым плунжером, размещенным в центральной гидравлической полости порщн , подплунжерна часть которой соединена с наполнительной полостью силового цилиндра с помощью обратного клацана, а также дроссель и клапан-пульсатор .A hydraulic vibratory device is known, which contains a ram cylinder with a piston dividing the cylinder into the filling and drain cavities, a shock mass with a stepped lifting plunger placed in the central hydraulic cavity of the core, the sub plunger part of which is connected to the filling cavity of the ram cylinder using a back-clamp and throttle and pulsator valve.

Недостатком устройства вл етс , наличие двух клапанов-пульсаторов, а также расположение одного из этих клапанов в теле порщн гидроцилиндра, что усложн ет его конструкцию и ухудщает его технологические возможности.The drawback of the device is the presence of two pulsation valves, as well as the location of one of these valves in the body of the hydraulic cylinder, which complicates its design and worsens its technological capabilities.

Дл повышени технологичности и упрощени конструкции клапан-пульсатор выполнен в виде корпуса с кольцевой расточкЬй в верхней части, соединенной с подплунжерной полостью силового цилиндра.To improve the manufacturability and simplify the design, the pulsating valve is made in the form of a housing with an annular bore in the upper part connected to the sub-plunger cavity of the power cylinder.

а в седле клапана выполнены радиальные канавки, при этом дроссель размещен на участке магистрали, соедин ющем наполнительную и сливную полости силового цилиндра .and in the valve seat there are radial grooves, with the throttle placed on the section of the line connecting the filling and drain cavities of the power cylinder.

На чертеже дана схема устройства.The drawing is a diagram of the device.

Оно содержит насос I, подающий жидкость в сливную полость 2 по напорной гидролинии 3 и в наполнительную полость 4 по гидролинии 5, на которой установлен дроссель 6. Порщень 7 имеет пружины 8, а ударна масса 9 имеет пружины 10 возврата . Обратный клапан соедин ет гидравлическую полость 12 ступенчатого плунжера 13, жестко св занного с ударной массой 9, с наполнительной полостью 4.It contains a pump I, which feeds the liquid into the drain cavity 2 along the pressure hydroline 3 and into the filling cavity 4 along the hydroline 5, on which the throttle 6 is installed. Porschen 7 has springs 8, and shock weight 9 has springs 10 return. A check valve connects the hydraulic cavity 12 of the stepped plunger 13, which is rigidly connected to the impact mass 9, with the filling cavity 4.

Корпус клапана-пульсатора имеет основную нижнюю расточку 14, соединенную гидролинией 15 со сливом, и дополнительную верхнюю расточку 16, соединенную с гидролинией 17 через кольцевую проточку 18 поршн и сквозной канал 19 с гидравлической полостью 12.The pulsator valve body has a main lower bore 14 connected by a hydroline 15 with a drain, and an additional upper bore 16 connected to the hydroline 17 via an annular groove 18 of the piston and a through channel 19 with a hydraulic cavity 12.

Claims

A saddle 20 is formed in the pulsator valve body, forming the upper 21 and lower 22 cavities, and changing the longitudinal grooves 23. The saddle 20 is compressed by a spring 24. A hydraulic valve 25 is mounted to the lower cavity of the pulsating valve, and the upper throttle 26 is mounted on it 21, the drainage of the hydrolines 27 is connected. The device operates as follows. In the lower initial position of the piston 7 and the stepped plunger 13, the pump 1 delivers fluid to the drain cavity 2 through the hydroline 3 and into the filling cavity 4 through the hydroline 5. The throttle 6 creates a pressure differential in the filling and drain cavity, as a result of which the piston 7 moves up and the fluid in the filling cavity 4 is expelled through the check valve 11 into the hydraulic cavity 12, raising the stepped plunger 13 and the shock mass 9 rigidly connected to it 9. When the force of the fluid pressure at the inlet of the pulsation valve is connected with drainage hydroline 3, exceeds the force created by the spring 24, the saddle 20 rises and the fluid enters the cavity 22, thereby increasing the effective area of the liquid on the saddle, and therefore increasing the force acting on it. This force abruptly rejects the valve body upwards, connecting the drain cavity and the hydraulic cavity with the drain. Under the action of the force of the springs 8 and 10, as well as the weight of the stepped plunger 13, the piston 7 and the impact mass 9, the liquid is forced out to drain from the drain cavity through pressure hydraulic line 3 into the lower cavity 22, boring 14 and hydraulic line 15, and from the hydraulic cavity the through channel 19, the bore 18 of the punch, the hydroline 17, the bore 16, the drain grooves 23 the bore 14 and the hydroline 15. When the impact mass 9 finishes its working stroke and the pressure in the lower cavity 22 drops, the saddle 20 of the pulsator valve returns to its original position. Claims of the invention A hydraulic vibration device comprising a ram cylinder with a piston separating a cylinder into a filling and drain cavity, an impact mass with a lifting stepped plunger placed in the central hydraulic cavity of the piston, the sub-plunger part of which is connected to the filling cavity of the ram cylinder using a check valve, also a choke and a pulsator valve, characterized in that, in order to improve the Manufacturability and simplify the design, the pulsator valve is made in the form of a housing with a valve and an annular bore in the upper part connected to the sub-plunger cavity of the power cylinder, and in the valve seat there are radial grooves, while the throttle is located on the main line connecting the filling and drain cavities of the power cylinder. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2467883 / 25-27, cl. At 21 J 9/06.