SU1239422A1 - Hydraulic system - Google Patents

Description

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The invention relates to systems for stabilizing the operation of hydraulic actuators and can be used in hydroficated machines.

The purpose of the invention is to increase its sustainability.

The drawing shows a diagram of the proposed device.

The hydraulic system includes an actuating hydraulic motor 1 with a cavity 2 connected to a pressure hydraulic line 3, and a cavity 4 connected to a drain hydraulic line 5 in which a throttle 6 is installed, a stabilizing device 7 with a hydraulic accumulator 8 connected through a choke 9 to the drain hydraulic line 5 before throttles 6, a hydraulically controlled spool valve 10, the inlet 11 of which is connected to the cavity 2 of the hydraulic engine 1, and the outlet 12 to the drain hydraulic line 5 after the throttles 6, and the cavities 13 and 14 of the hydraulic control valve 10 are connected to each of the oron droselsel 9.

The hydraulic system works as follows.

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Compiled by V.Primazov Editor A. Kozoriz Tehred O.Gortvay Proofreader L.Pilipenko

:

Order 3377/35 Circulation 610 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

ten

-.five

239422. 2

When the working fluid is supplied to the cavity 2 of the hydraulic motor 1, the latter starts its movement and due to the presence, in the drainage line 5, the throttle 6 charges the accumulator 8 of the stabilizing device 7. In the steady state operation of the hydraulic engine 1, the valve 10 bypasses a part of the working fluid into the drainage line 5.:

When disturbances occur in the operation of the hydraulic engine 1, for example, when its work is accelerated due to a decrease in load,

15, the pressure in the drain line 5, which is due to the presence of throttles 9, the opening of the valve 10 and the decrease in pressure in the cavity 2 of the hydraulic engine 1.

20 When the load increases and the hydraulic motor 1 slows down, the pressure in the drain line 5 decreases and the pressure of the stabilizing device 7 decreases; valve 10 closes,

25 by reducing the flow rate into the drain hydroline 5 from the cavity 2 of the hydraulic engine 1 with increasing pressure in this cavity.

Claims (1)

A HYDRAULIC SYSTEM containing a pressure and drain hydraulic line, an executive hydraulic motor, one working cavity of which is connected to a pressure hydraulic line, and the other with a drain hydraulic line with a throttle and a stabilizing device with a hydraulic accumulator, characterized in that, in order to increase vibration resistance, it is additionally equipped with a throttle and a hydraulically controlled spool valve, the inlet of which is in communication with the pressure hydraulic line, and the output is with a drain hydraulic line after the throttle, while the stabilizing device is connected a hydraulic line to the return line to throttle an additional installed therein throttle, to which on both sides of the additional choke line connected hydraulic control spool valves. , SU 1239422 1239422 2