SU1335733A1 - Pump accumulating hydraulic drive - Google Patents

Abstract

The invention can be used in machines and installations with inertial load. The purpose of the invention is to reduce energy consumption, simplify the design and expand functionality. For this, the hydraulic motor is made in the form of an adjustable motor pump (MN) 1 with zero flow, the cavities of which are interconnected through the check valve 6, and with the power 1 and the hydroaccumulator (HA) 2 through a controlled check valve 4. In the zero position of the swinging node MN 1 does not create a torque both when rotating and when the shaft is stopped. In order to obtain a uniform movement over the innings, the power HA 2 and the MN cavities are looped back through the check valve 6. When braking, the MH works in pump mode, supplying the working fluid from the filling HA 3 1 3.p. f-ly, 1 ill. in power GA 2. (Sla o :) cl CO with

Description

one

The invention relates to the field of hydraulic drive and can be used in machines and installations with inertial load,

The goal of the invention is to reduce energy consumption,. simplified design and enhanced functionality.

The drawing shows a diagram of the hydraulic drive.

The hydraulic drive contains a hydraulic motor j made in the form of adjustable

it is changed by the fluid coming in through the additional hydroline 5 through the check valve 6 from the output of the motor-pump 1 in the volume equal to the amount of leakage from the filling accumulator 3, The same happens with the complete emptying of the power valve and accumulator 2, When braking the motor-pump 1 operates in the pump mode, supplying the working fluid from the filling accumulator 3 to the power hydraulic accumulator 2, regardless of whether the controlled check valve 4 is closed or open.

To reduce the flow rate when the motor pump 1 is standing or when it is operating with zero working volume, as well as for long-term storage of the working fluid in the power hydraulic accumulator 2, the latter is shut off with a controlled check valve 4 by removing the control signal.

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GO motor-pump 1 with zero flow, the cavities of which are in communication with the power and filling hydroaccumulators 2 and 3, the motor pump communicates with the power hydroaccumulator 2 through a controlled check valve 4, and the cavity of the motor-pump 1 communicates with each other by hydroline 5 with reverse valve 6,

The hydraulic actuator works as follows.

The motor pump 1, receiving the working fluid with the open (open) valve 4 under constant pressure directly from the power accumulator of the torus 2, creates a torque on the shaft of the desired direction and magnitude in the modes of acceleration, uniform motion or deceleration, In the center The zero position of the pumping unit, its working volume is zero and it does not create a torque both with rotating and stopped shaft.

In order to obtain a displacement of the pre-dispersed mass of the machine in response to the cavity of the hydraulic motor with the force of uniform inertia movement, a control valve 4 is installed by removing the controlled valve check valve and the laziness cavities in the 40th hydraulic accumulator. - the hydraulic motor communicates with each other; the bocha liquid ceases to flow by the additional hydroline with the return valve from the power hydroaccumulator 2 and the valve.

Claims (1)

25 claims one . Pump-akku {{hydraulic actuator containing hydrodvigator, cavities of which are in communication with the power and filling hydroaccumulators of the torus30 mi, characterized by that. that, in order to reduce energy consumption, simplify the design and extend the functionality, the hydro-35 engine is designed as an adjustable motor-pump with zero flow. 2, The hydraulic actuator according to claim., About tl and Editor G. Gerber Compiled E, Aybinder Tehred L. Oliynyk Proofreader A, Zimokosov Order 4033/31 Circulation 639Subscription VSSH NSh State Committee of the USSR for inventions and discoveries 113035, Moscow, Zh-35., Raushsk nab. 4/5 Production and printing company, Uzhgorod, st. Project, 4 ten 357332 it is changed by the fluid coming in through the additional hydroline 5 through the check valve 6 from the output of the motor-pump 1 in the volume equal to the amount of leakage from the filling accumulator 3, The same happens with the complete emptying of the power valve and accumulator 2, When braking the motor-pump 1 operates in the pump mode, supplying the working fluid from the filling accumulator 3 to the power hydraulic accumulator 2, regardless of whether the controlled check valve 4 is closed or open. To reduce the flow rate when the motor pump 1 is standing or when it is operating with zero working volume, as well as for long-term storage of the working fluid in the power hydraulic accumulator 2, the latter is shut off with a controlled check valve 4 by removing the control signal. 15 20 25 claims one . Pump akku - {flat hydraulic actuator containing hydrodvigator, cavities of which are communicated with power and filling hydroaccumulators of the torus mi, characterized by that. that, in order to reduce energy consumption, simplify the design and extend the functionality, the hydraulic motor is designed as an adjustable motor pump with zero flow. 2, Hydraulic drive according to claim., About t l and