SU624692A1

SU624692A1 - Vibratory hydraulic device

Info

Publication number: SU624692A1
Application number: SU772467888A
Authority: SU
Inventors: Игорь Борисович Матвеев; Михаил Евгеньевич Иванов; Валерий Петрович Якубович
Original assignee: Matveev Igor B; Ivanov Mikhail E; Yakubovich Valerij P
Priority date: 1977-04-01
Filing date: 1977-04-01
Publication date: 1978-09-25

Description

(54) ГИДРАВЛИЧЕСКОЕ ВИБРАЦИОННОЕ УСТРОЙСТВО(54) HYDRAULIC VIBRATION DEVICE

Изобретение относитс к обработке металлов давлением, конкретно к системам управлени прессов вибрационного и ударного действи .The invention relates to the processing of metals by pressure, specifically to control systems for vibratory and impact presses.

Известно гидравлическое вибрационное устройство , состо щее из гидроцилиндра, в котором расположен поршень, жестко св занный с ударной массой, и элементов автоматического ут(равлени ходами молота 1.A hydraulic vibratory device is known, consisting of a hydraulic cylinder, in which a piston is rigidly connected to the impact mass, and elements of automatic hammer (driven by hammer strokes 1).

Скорость ударной массы во врем рабо%го цикла у таких устройств в р де случаев ограничена скоростью слива жидкости из подпоршневой полости.The speed of the shock mass during the working cycle of such devices in a number of cases is limited by the rate of discharge of fluid from the sub-piston cavity.

Известно также гидравлическое вибрациониое устройство содержащее силовой цилиндр с поршнем, образующим в цилиндре наполнительную и сливную полости, уц риук массу с подъ емным ступенчать1м плунжером, источник давлени , соединенный | напорной гидролкнией с ра бочей полостью силового цилиндра, а также клапа -пульсатору вход которого соединен с напор1ЮЙ шдролинией, а выход - со сливным баком 2.It is also known a hydraulic vibration device containing a power cylinder with a piston forming a filling and a drain cavity in the cylinder, connecting a mass with a lifting step 1 m plunger, a pressure source connected | pressure hydraulics with the working cavity of the power cylinder, as well as the valve-pulsator whose inlet is connected to the pressure head and outlet is connected to the drain tank 2.

В известном устройстве возвратно-поступательное движение ударной массы осуществл етс за счет попеременного слива и подачи давлени через клапан-пульсатор в рабочую полость силового цилиндра.In the known device, the reciprocating motion of the shock mass is carried out by alternately discharging and applying pressure through the pulsator valve into the working cavity of the power cylinder.

Данное устройство вл етс наиболее близким к предложенному устройству по своей технической сущности и дослпаемому результату.This device is the closest to the proposed device in its technical essence and the complete result.

Недостатком известного устройства вл етс большое сопротивление потоку рабочей .жидкости при ее сливе из силового цилиндра, что приводит к снижению скорости движени ударной массы.A disadvantage of the known device is a large resistance to the flow of the working fluid when it is drained from the ram, which leads to a decrease in the velocity of the shock mass.

Целью изобретени вл етс повышение быстроходности.The aim of the invention is to increase the speed.

Claims

This is achieved by the fact that the proposed device is equipped with an additional pulsator valve with a servo, throttle and non-return valve. With this, the central hole and channels are made in the piston of the bottom cylinder, the lifting stepped plunger is mounted in the hole of the piston of the power cylinder, forming a hydraulic cavity in it, and is rigidly connected to the impact mass. The throttle is mounted on hydrolia between the pulsator valve and the drain tank. The hydraulic cavity of the piston is connected by channels through an additional valve-pulsator and a reverse valve to the filling cavity of the cjuio cylinder, and the servo-driver of the additional valve-pulsator is connected to the section of the hydraulic line between the pulse-valve: a torus and a throttle. The drawing shows a schematic diagram of the proposed device. The hydraulic vibratory device comprises a pump 1 supplying a liquid to the discharge cavity 2, having a connection with a drain line through a pulsating valve 3. A piston. 4 has springs 5, and the shock mass 6 is a return spring 7. The non-return valve 8 and the additional pulsator valve 9 connect the hydraulic reach of the stepped plunger I, rigidly connected with the shock mass 6, to the filling cavity 12, which is connected to the filler 13. A servo driver 14, which controls the opening of the pulsation valve, is connected through line J5 to a cavity 16, the pressure in which is set by the throttle 17. The device operates as follows. In the lower initial position of the piston 4 and the shrunched plunger 11, the pump 1 delivers fluid to the cavity of the pressure shaft 2. In this case, the clan- pulsators 3 and 9 are closed. Under the influence ; fluid pressure, the piston 4 moves upward, squeezing the fluid, being in the closed filling cavity 12 and the spring 5.. Liquid i from the cavity 12 through the check valve 8 enters the cavity 10, moving the stepped plunger 11 and the shock mass 6 to the initial upper position. When in the discharge cavity 2 a predetermined pressure, the pulsator valve 3 is opened due to the pressure differential created by the throttle 17, the pulsator valve 9 is opened by the servo drive 14. The fluid from the vacuum chamber 2 through the pulsator valve 3 is drained into the tank, and from the cavity 10 through addition 1 cl. Pan-pulsator 9 - into the filling cavity 12 In this case, the piston 4 and the stepped plunger i 1 start the movement B1taz. Due to the fact that the volume of fluid in cavity 10 is very small compared to the volume of cavity 2, the time taken to drain the liquid from the strip 10 will be considerable. smaller, which determines the greater speed of movement of the stepped plunger 11 and the impact mass 6. The piston 4 and the stepped plunger 11 move to the lower starting position, making a working stroke, after which the pulsatory valves 3 and 9 are closed and the cycle repeats. Claims of the invention A hydraulic vibration device comprising a ram cylinder with a piston forming a filling and drain cavity in the cylinder, an impact mass with a stepped lifting plunger, a pressure source connected by a pressure head with a working cavity of the ram cylinder, and also a valve with a pulsator, whose inlet is connected with a pressure cylinder. hydroline, and the outlet with a drain tank, characterized in that, in order to increase the speed, the O1U is equipped with an additional pulsator valve with a servo, throttle and reverse a valve, wherein the piston cylinder vsholneno tsentralkoe hole and channels lifting crynoiMaty plunger mounted in a bore of the piston cylinder to form therein a hydraulic chamber and rigidly connected to the impact weight, a throttle is installed on the hydraulic lines between the pulsator valve and sshshnym tank, hydraulic the piston cavity is connected by channels through an additional pulsator valve and non-return valve to the filling cavity of the power cylinder, and the servo drive of the additional pulsator valve is connected to section g drolinii disposed between klapanompulsatorom and throttle. Sources of information taken into account in the examination: 1. Matveev I. B. Hydraulic drive machines of shock and vibration action. M. Machinostrteshe. 1974, p. 39, 65, 108.

2. USSR author's certificate No. 356033, M.KL. At 21 J 9/06, 1970.