SU1642101A1 - Hydraulic prime mover of reciprocating motion - Google Patents

Abstract

The invention can be used in mechanisms requiring reciprocating motion. The purpose of the invention is to increase the reliability of operation. The hydraulic motor comprises a hydraulic cylinder 1, a pressure head 2 and a drain 3 lines, a main valve 4 with cavities 5 and 6 of hydraulic control connected to cavities 7 and 10 of the hydraulic cylinder 1, adjustable valves 11 and 12, as well as a throttle 13, three check valves 14, 15 and 16 and a hydraulically controlled six-valve distributor 17, with its control cavity 18 connected with cavity 9, and cavity 19 with valve outlet 12 When pressure is applied, the working fluid flows into cavity 9, and from cavity 10 Plum When extremely In the position of the piston, the pressure increases, the valve 11 is activated, the fluid is introduced into the cavity 5. The valve 4 moves to the left position, and the direction of movement of the hydraulic cylinder 1 changes. In the extreme position, the pressure increases, valve 12 triggers, causing the valve 17 to trip, which unloads the main cavity 5 distributor 4. It switches to the initial position. The cylinder moves to the right side. The distributor 17 is also set to its original position. Thus, reciprocating movement of the hydraulic cylinder is carried out. 1 Il C

Description

The invention relates to mechanical engineering and can be used in mechanisms requiring reciprocating motion.

The purpose of the invention is to increase the reliability of work.

The drawing shows the scheme of the hydraulic engine.

The reciprocating hydraulic motor contains an actuating hydraulic cylinder 1 of two-way action, connected to pressure 2 and drain 3 hydraulic lines through a hydraulically controlled main valve 4 with spring

return, the cavities 5 and 6 of control of which are connected by hydrolines 7 and 8 to the cavities 9 and 10 of the hydraulic cylinder 1 through adjustable valves 11 and 12

The hydraulic motor is additionally equipped with a throttle 13, three non-return valves 14, 15 and 16 and a hydraulically controlled six-line valve 17 with spring return, the spring-loaded control cavity 18 being connected to the piston cavity 9 of the hydraulic cylinder 1, and the other control cavity 19 to the output of the adjustable valve 12. Two input lines 20 and 21 six-line distributors

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l combined and communicated with the spring cavity 6 of the main distributor 4, and the third input line 22 is connected to the hydraulic control cavity 5 of the main distributor 4 and to the inlet of the check valve 15, the output of which is connected to the pressure hydraulic line 2. The hydraulic control cavity 19 of the six-linear distributor 17 is connected by hydraulic line to the output a check valve 16, the inlet of which is connected to the drainage main 3, and a check valve 14 is installed parallel to the adjustable valve 12, the inlet of which is connected to one of the output lines 23 a pole or a linear distributor and a hydraulic control valve 19 of the distributor 17. The other two output lines 24 and 25 are connected and connected to the drain main 3, the distributor 4 being connected to one of the six-line distributor 13 by one throttle 13.

The reciprocating hydraulic motor works as follows

When the working fluid is supplied to the pressure line 2, the flow rushes into the hollow 9 of the hydraulic cylinder 1, and the cavity 10 is connected to the drain 3. As soon as the piston of the hydraulic cylinder 1 reaches the right extreme position, the pressure in the hydraulic system will increase as a result of which the adjustable valve 11 opens by re-circulating the flow of working fluid to the cavity 5 of the distributor 4. Since the opposite spring-loaded end 6 of the distributor 4 communicates with the drain line 3 through the distributor 17, the distributor 4 will switch left position, the pressure line 2 soedinits rod with a cavity 10 of the hydraulic cylinder 1, a cavity 9, - with a drain. The piston will begin to move to the left.

When the piston reaches its extreme position, the pressure in cavity 10 will increase, which will open valve 12 and supply working fluid to the end cavity 19 of the distributor 17. This will cause the latter to switch to another position, connecting the end cavity 5 of the distributor 4 to the drain line 3, and the incoming through valve 12, the flow of working fluid with an end cavity 6. Distributor 4 switches to the right position.

reconnecting the pressure line 2 to the cavity 9 of the hydraulic cylinder 1 and the front cavity 18 of the distributor 17, and the drain line 3 to the cavity of the 10 hydraulic cylinder

1, a new reciprocating cycle will begin, at the same time, the distributor 17 will return to the initial first position, displacing fluid from the end cavity 19 through the check valve

14 to the drain line 3.

Claims (1)

Invention Formula The hydraulic motor returns the on-translational motion, containing an actuating hydraulic cylinder of double-acting action, connected to the pressure and discharge hydraulic lines through a hydro-controlled main distributor with spring return, the control cavities of which are connected by hydrolines to the cavities of the hydraulic cylinder through adjustable valves, characterized in that, in order to increase the reliability of operation, it equipped with a throttle, three non-return valves, and a hydraulically controlled six-valve distributor with spring return, the spring-loaded control cavity of which is connected to the piston the hydraulic cylinder cavity, and the other control cavity, with the output of the adjustable valve rod cavity, the two inlet lines of the six-valve distributor being connected and communicating with the spring cavity of the main distributor, and a third input line communicating with the hydraulic control cavity of the main distributor and with the inlet of the first non-return valve, the output of which is connected with the hydraulic pressure line, the hydraulic control cavity of the six-line distributor is connected by hydroline to the outlet of the second check valve, whose inlet is There is a single valve with a drainage main, and in parallel an adjustable valve connected to the rod cavity, a check valve is installed, the inlet of which is connected to one of the output lines of the six-shaft distributor and the hydraulic control cavity of the same the distributor, and the other two output lines of the six-line distributor are combined and communicated with the drain main, the main distributor of one of the output lines being connected to the input line of the six-line distributor through the choke.