CN110118206B - Novel hydraulic accumulator control circuit - Google Patents
Novel hydraulic accumulator control circuit Download PDFInfo
- Publication number
- CN110118206B CN110118206B CN201910444343.XA CN201910444343A CN110118206B CN 110118206 B CN110118206 B CN 110118206B CN 201910444343 A CN201910444343 A CN 201910444343A CN 110118206 B CN110118206 B CN 110118206B
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- port
- supercharger
- hydraulic
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
Abstract
The invention discloses a working pressure control loop of a hydraulic accumulator, which is characterized in that: the hydraulic control system comprises a first electromagnetic valve, a first booster, a second electromagnetic valve, a third electromagnetic valve, a second booster, a fourth electromagnetic valve, a fifth electromagnetic valve, a third booster, a sixth electromagnetic valve, a seventh electromagnetic valve, an eighth electromagnetic valve, a fourth booster, a ninth electromagnetic valve, a tenth electromagnetic valve, a fifth booster, an eleventh electromagnetic valve, a twelfth electromagnetic valve, a sixth booster, a thirteenth electromagnetic valve, a hydraulic accumulator, a pressure sensor, an external hydraulic circuit and a controller. The invention can effectively improve the problem of severe pressure change at the outlet of the hydraulic accumulator, reduces the impact of the hydraulic accumulator on the main hydraulic loop and has higher practicability.
Description
Technical Field
The invention relates to the technical field of energy conservation of hydraulic systems, in particular to a novel hydraulic accumulator control loop.
Background
The hydraulic accumulator is a common hydraulic energy storage element in a hydraulic system, and can store hydraulic oil with certain pressure. When the pressure of oil in the hydraulic accumulator is low and the pressure of oil in a hydraulic system is high, the hydraulic accumulator absorbs high-pressure oil; when the pressure of oil in the hydraulic accumulator is higher and the pressure of oil in a hydraulic system is lower, the accumulator can release high-pressure oil.
Because the absorption and release of the pressure oil in the existing hydraulic accumulator are both completed passively, the following defects are generated in the working process of the hydraulic accumulator: (1) the hydraulic accumulator has high power density and low energy density; (2) the internal oil pressure of the hydraulic accumulator greatly changes in the absorption and release processes; (3) the controllability of the working process of the hydraulic accumulator is poor, and the like.
Therefore, aiming at the defects of the existing hydraulic accumulator, the novel hydraulic accumulator control circuit is provided and has important practical value.
Disclosure of Invention
The invention discloses a working pressure control loop of a hydraulic accumulator, which is characterized in that: the hydraulic control system comprises a first electromagnetic valve, a first booster, a second electromagnetic valve, a third electromagnetic valve, a second booster, a fourth electromagnetic valve, a fifth electromagnetic valve, a third booster, a sixth electromagnetic valve, a seventh electromagnetic valve, an eighth electromagnetic valve, a fourth booster, a ninth electromagnetic valve, a tenth electromagnetic valve, a fifth booster, an eleventh electromagnetic valve, a twelfth electromagnetic valve, a sixth booster, a thirteenth electromagnetic valve, a hydraulic accumulator, a pressure sensor, an external hydraulic circuit and a controller; the hydraulic accumulator is respectively connected with the port A of the first electromagnetic valve, the port A of the third electromagnetic valve, the port A of the fifth electromagnetic valve, the port A of the seventh electromagnetic valve, the port A of the eighth electromagnetic valve, the tenth electromagnetic valve, the port A of the twelfth electromagnetic valve and the measuring port of the pressure sensor; the port B of the first electromagnetic valve is connected with the X end of the first supercharger, and the Y end of the first supercharger is connected with the port A of the second electromagnetic valve; the port B of the third electromagnetic valve is connected with the X end of the second supercharger, and the Y end of the second supercharger is connected with the port A of the fourth electromagnetic valve; the port B of the fifth electromagnetic valve is connected with the X end of the third supercharger, and the Y end of the third supercharger is connected with the port A of the sixth electromagnetic valve; the port B of the eighth electromagnetic valve is connected with the Y end of the fourth supercharger, and the X end of the fourth supercharger is connected with the port A of the ninth electromagnetic valve; a port B of the tenth electromagnetic valve is connected with a port Y of a fifth supercharger, and a port X of the fifth supercharger is connected with a port A of an eleventh electromagnetic valve; the port B of the twelfth electromagnetic valve is connected with the end Y of the sixth booster, and the end X of the sixth booster is connected with the port A of the thirteenth electromagnetic valve; a connecting port of the external hydraulic circuit is respectively connected with a port B of the second electromagnetic valve, a port B of the fourth electromagnetic valve, a port B of the sixth electromagnetic valve, a port B of the seventh electromagnetic valve, a port B of the ninth electromagnetic valve, a port B of the eleventh electromagnetic valve and a port B of the thirteenth electromagnetic valve; the port C1 of the controller is respectively connected with a control port comprising a first electromagnetic valve and a control port comprising a second electromagnetic valve; the port C2 of the controller is respectively connected with the control port of the third electromagnetic valve and the control port of the fourth electromagnetic valve; the port C3 of the controller is respectively connected with the control port of the fifth electromagnetic valve and the control port of the sixth electromagnetic valve; the port C4 of the controller is connected with the control port of the seventh electromagnetic valve; the port C5 of the controller is respectively connected with the control port of the eighth electromagnetic valve and the control port of the ninth electromagnetic valve; a port C6 of the controller is respectively connected with a control port of a tenth electromagnetic valve and a control port of an eleventh electromagnetic valve; a port C7 of the controller is respectively connected with a twelfth electromagnetic valve and a thirteenth electromagnetic valve; the port R1 of the controller is connected with the signal output port of the pressure sensor; the ports C1, C2, C3, C4, C5, C6 and C7 of the controller can only output two signals of 'on' and 'off' to the electromagnetic valve;
preferably, the ratio of the effective acting area of the X end to the effective acting area of the Y end of the first supercharger, the second supercharger, the third supercharger, the fourth supercharger, the fifth supercharger and the sixth supercharger is 2:1, 5:3, 4:3, 5:3 and 2:1 respectively.
Preferably, the hydraulic accumulator can adopt a piston type liquid-gas accumulator or a leather bag type liquid-gas accumulator.
Preferably, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve, the seventh solenoid valve, the eighth solenoid valve, the ninth solenoid valve, the tenth solenoid valve, the eleventh solenoid valve, the twelfth solenoid valve, and the thirteenth solenoid valve are all high-speed solenoid valves.
Preferably, the pressure sensor has a measurement range of 0 to 150 MPa.
The invention can effectively improve the problem of severe pressure change at the outlet of the hydraulic accumulator, reduces the impact of the hydraulic accumulator on the main hydraulic loop and has higher practicability.
Drawings
FIG. 1 is a hydraulic schematic of the control circuit of the present invention.
The figures are labeled as follows:
1-a first solenoid valve; 2-a first supercharger; 3-a second solenoid valve; 4-a third electromagnetic valve; 5-a second supercharger; 6-a fourth electromagnetic valve; 7-a fifth solenoid valve; 8-a third supercharger; 9-a sixth solenoid valve; 10-a seventh electromagnetic valve, 11-an eighth electromagnetic valve, 12-a fourth pressure booster, 13-a ninth electromagnetic valve, 14-a tenth electromagnetic valve, 15-a fifth pressure booster, 16-an eleventh electromagnetic valve, 17-a twelfth electromagnetic valve, 18-a sixth pressure booster, 19-a thirteenth electromagnetic valve, 20-a hydraulic accumulator, 21-a pressure sensor, 22-an external hydraulic circuit and 23-a controller.
Detailed Description
As shown in fig. 1, a hydraulic accumulator working pressure control circuit includes a first solenoid valve 1, a first pressure intensifier 2, a second solenoid valve 3, a third solenoid valve 4, a second pressure intensifier 5, a fourth solenoid valve 6, a fifth solenoid valve 7, a third pressure intensifier 8, a sixth solenoid valve 9, a seventh solenoid valve 10, an eighth solenoid valve 11, a fourth pressure intensifier 12, a ninth solenoid valve 13, a tenth solenoid valve 14, a fifth pressure intensifier 15, an eleventh solenoid valve 16, a twelfth solenoid valve 17, a sixth pressure intensifier 18, a thirteenth solenoid valve 19, a hydraulic accumulator 20, a pressure sensor 21, an external hydraulic circuit 22, and a controller 23; the hydraulic accumulator 20 is respectively connected with the port A of the first electromagnetic valve 1, the port A of the third electromagnetic valve 4, the port A of the fifth electromagnetic valve 7, the port A of the seventh electromagnetic valve 10, the port A of the eighth electromagnetic valve 11, the port A of the tenth electromagnetic valve 14, the port A of the twelfth electromagnetic valve 17 and the measuring port of the pressure sensor 21; the port B of the first electromagnetic valve 1 is connected with the X end of the first supercharger 2, and the Y end of the first supercharger 2 is connected with the port A of the second electromagnetic valve 3; the port B of the third electromagnetic valve 4 is connected with the X end of the second supercharger 5, and the Y end of the second supercharger 5 is connected with the port A of the fourth electromagnetic valve 6; the port B of the fifth electromagnetic valve 7 is connected with the X end of the third supercharger 8, and the Y end of the third supercharger 8 is connected with the port A of the sixth electromagnetic valve 9; the port B of the eighth electromagnetic valve 11 is connected with the Y end of the fourth supercharger 12, and the X end of the fourth supercharger 12 is connected with the port A of the ninth electromagnetic valve 13; the port B of the tenth electromagnetic valve 14 is connected with the end Y of the fifth supercharger 15, and the end X of the fifth supercharger 15 is connected with the port A of the eleventh electromagnetic valve 16; the port B of the twelfth electromagnetic valve 17 is connected with the Y end of the sixth pressure booster 18, and the X end of the sixth pressure booster 18 is connected with the port A of the thirteenth electromagnetic valve 16; the connecting ports of the external hydraulic circuit 22 are respectively connected with the port B of the third electromagnetic valve 4, the port B of the fourth electromagnetic valve 6, the port B of the sixth electromagnetic valve 9, the port B of the seventh electromagnetic valve 10, the port B of the ninth electromagnetic valve 13, the port B of the eleventh electromagnetic valve 16 and the port B of the thirteenth electromagnetic valve 19; the port C1 of the controller 23 is respectively connected with a control port comprising a first electromagnetic valve 1 and a control port comprising a second electromagnetic valve 3; a port C2 of the controller 23 is respectively connected with a control port of the third electromagnetic valve 4 and a control port of the fourth electromagnetic valve 6; a port C3 of the controller 23 is respectively connected with a control port of the fifth electromagnetic valve 7 and a control port of the sixth electromagnetic valve 9; the port C4 of the controller 23 is connected with the control port of the seventh electromagnetic valve 10; a port C5 of the controller 23 is respectively connected with a control port of the eighth electromagnetic valve 11 and a control port of the ninth electromagnetic valve 13; a port C6 of the controller 23 is respectively connected with a control port of the tenth electromagnetic valve 14 and a control port of the eleventh electromagnetic valve 16; a port C7 of the controller 23 is respectively connected with the twelfth electromagnetic valve 17 and the thirteenth electromagnetic valve 19; the port R1 of the controller 23 is connected with the signal output port of the pressure sensor 21; the ports C1, C2, C3, C4, C5, C6 and C7 of the controller 23 can only output two signals of "on" and "off" to the solenoid valve; ports C1, C2, C3, C4, C5, C6 and C7 of the controller 23 only output an opening signal at one port and output closing signals at the other ports in the working process of the hydraulic accumulator 20; ports C1, C2, C3, C4, C5, C6, C7 of the controller 23 all output "off" signals during a stop of the hydraulic accumulator 20.
The ratios of the effective area of the X end to the effective area of the Y end of the first supercharger 2, the second supercharger 5, the third supercharger 8, the fourth supercharger 12, the fifth supercharger 15, and the sixth supercharger 18 are 2:1, 5:3, 4:3, 5:3, and 2:1, respectively.
The hydraulic accumulator 20 may be a piston type hydraulic-pneumatic accumulator or a bladder type hydraulic-pneumatic accumulator.
The first solenoid valve 1, the second solenoid valve 3, the third solenoid valve 4, the fourth solenoid valve 6, the fifth solenoid valve 7, the sixth solenoid valve 9, the seventh solenoid valve 10, the eighth solenoid valve 11, the ninth solenoid valve 13, the tenth solenoid valve 14, the eleventh solenoid valve 16, the twelfth solenoid valve 17, and the thirteenth solenoid valve 19 are all high-speed solenoid valves.
The pressure sensor 21 has a measurement range of 0 to 150 MPa.
The specific working method of the invention is as follows:
(1) energy absorption process
Firstly, a port C1 of the controller 23 outputs a 'turn-on' signal to the first electromagnetic valve 1 and the second electromagnetic valve 3, hydraulic oil of the external hydraulic circuit 22 enters a Y end of the first supercharger 2 through the second electromagnetic valve 3, and hydraulic oil at an X end of the first supercharger 2 is output through the first electromagnetic valve 1 and enters the hydraulic accumulator 20;
secondly, a port C2 of the controller 23 outputs a 'turn-on' signal to the third electromagnetic valve 4 and the fourth electromagnetic valve 6, hydraulic oil of the external hydraulic circuit 22 enters a Y end of the second supercharger 5 through the fourth electromagnetic valve 6, and hydraulic oil at an X end of the second supercharger 5 is output through the third electromagnetic valve 4 and enters the hydraulic accumulator 20;
thirdly, a port C3 of the controller 23 outputs a 'turn-on' signal to the fifth electromagnetic valve 7 and the sixth electromagnetic valve 9, hydraulic oil of the external hydraulic circuit 22 enters the Y end of the third supercharger 8 through the sixth electromagnetic valve 9, and hydraulic oil at the X end of the third supercharger 8 is output through the fifth electromagnetic valve 7 and enters the hydraulic accumulator 20;
fourthly, the port C4 of the controller 23 outputs an opening signal to the seventh electromagnetic valve 10, and hydraulic oil of the external hydraulic circuit 22 enters the hydraulic accumulator 20 through the sixth electromagnetic valve 9;
fifthly, the port C5 of the controller 23 outputs a 'turn-on' signal to the eighth electromagnetic valve 11 and the ninth electromagnetic valve 13, hydraulic oil of the external hydraulic circuit 22 enters the X end of the fourth supercharger 12 through the ninth electromagnetic valve 12, and hydraulic oil at the Y end of the fourth supercharger 12 is output through the eighth electromagnetic valve 11 and enters the hydraulic accumulator 20;
sixthly, the port C6 of the controller 23 outputs an opening signal to the tenth electromagnetic valve 14 and the eleventh electromagnetic valve 16, hydraulic oil of the external hydraulic circuit 22 enters the X end of the fifth supercharger 15 through the eleventh electromagnetic valve 16, and hydraulic oil at the Y end of the fifth supercharger 15 is output through the tenth electromagnetic valve 14 and enters the hydraulic accumulator 20;
seventhly, a port C7 of the controller 23 outputs a 'turn-on' signal to the twelfth electromagnetic valve 17 and the thirteenth electromagnetic valve 19, hydraulic oil of the external hydraulic circuit 22 enters the X end of the sixth pressure booster 18 through the thirteenth electromagnetic valve 19, and hydraulic oil at the Y end of the sixth pressure booster 18 is output through the twelfth electromagnetic valve 17 and enters the hydraulic accumulator 20;
(2) energy release process
Firstly, a port C7 of the controller 23 outputs a 'turn-on' signal to a twelfth electromagnetic valve 17 and a thirteenth electromagnetic valve 19, hydraulic oil of the hydraulic accumulator 20 enters a Y end of a sixth pressure booster 18 through the twelfth electromagnetic valve 17, and hydraulic oil at an X end of the sixth pressure booster 18 is output through the thirteenth electromagnetic valve 19 and enters an external hydraulic loop 22;
secondly, the port C6 of the controller 23 outputs an on signal to the tenth electromagnetic valve 14 and the eleventh electromagnetic valve 16, hydraulic oil of the hydraulic accumulator 20 enters the Y end of the fifth supercharger 15 through the tenth electromagnetic valve 14, and hydraulic oil at the X end of the fifth supercharger 15 is output through the eleventh electromagnetic valve 16 and enters the external hydraulic circuit 22;
thirdly, a port C5 of the controller 23 outputs a 'turn-on' signal to the eighth electromagnetic valve 11 and the ninth electromagnetic valve 13, hydraulic oil of the hydraulic accumulator 20 enters a Y end of the fourth supercharger 12 through the eighth electromagnetic valve 11, and hydraulic oil at an X end of the fourth supercharger 12 is output through the eleventh electromagnetic valve 13 and enters the external hydraulic circuit 22;
fourthly, the port C4 of the controller 23 outputs an opening signal to the seventh electromagnetic valve 10, and the hydraulic oil of the hydraulic accumulator 20 enters the external hydraulic loop 22 through the sixth electromagnetic valve 9;
fifthly, a port C3 of the controller 23 outputs a 'turn-on' signal to a fifth electromagnetic valve 7 and a sixth electromagnetic valve 9, hydraulic oil of the hydraulic accumulator 20 enters an X end of a third supercharger 8 through the fifth electromagnetic valve 7, and hydraulic oil at a Y end of the third supercharger 8 is output through the sixth electromagnetic valve 9 and enters an external hydraulic loop 22;
sixthly, the port C2 of the controller 23 outputs a 'turn-on' signal to the third electromagnetic valve 4 and the fourth electromagnetic valve 6, hydraulic oil of the hydraulic accumulator 20 enters the X end of the second supercharger 5 through the third electromagnetic valve 4, and hydraulic oil at the Y end of the second supercharger 5 is output through the fourth electromagnetic valve 6 and enters the external hydraulic loop 22;
seventhly, the port C1 of the controller 23 outputs an on signal to the first electromagnetic valve 1 and the second electromagnetic valve 3, hydraulic oil of the hydraulic accumulator 20 enters the X end of the first supercharger 2 through the first electromagnetic valve 1, and hydraulic oil at the Y end of the first supercharger 2 is output through the second electromagnetic valve 3 and enters the external hydraulic circuit 22.
Claims (5)
1. A working pressure control circuit of a hydraulic accumulator comprises a first electromagnetic valve (1), a first booster (2), a second electromagnetic valve (3), a third electromagnetic valve (4), a second booster (5), a fourth electromagnetic valve (6), a fifth electromagnetic valve (7), a third booster (8), a sixth electromagnetic valve (9), a seventh electromagnetic valve (10), an eighth electromagnetic valve (11), a fourth booster (12), a ninth electromagnetic valve (13), a tenth electromagnetic valve (14), a fifth booster (15), an eleventh electromagnetic valve (16), a twelfth electromagnetic valve (17), a sixth booster (18), a thirteenth electromagnetic valve (19), the hydraulic accumulator (20), a pressure sensor (21), an external hydraulic circuit (22) and a controller (23);
the method is characterized in that:
the hydraulic accumulator (20) is respectively connected with the port A of the first electromagnetic valve (1), the port A of the third electromagnetic valve (4), the port A of the fifth electromagnetic valve (7), the port A of the seventh electromagnetic valve (10), the port A of the eighth electromagnetic valve (11), the tenth electromagnetic valve (14), the port A of the twelfth electromagnetic valve (17) and the measuring port of the pressure sensor (21);
the port B of the first electromagnetic valve (1) is connected with the X end of the first supercharger (2), and the Y end of the first supercharger (2) is connected with the port A of the second electromagnetic valve (3); the port B of the third electromagnetic valve (4) is connected with the X end of the second supercharger (5), and the Y end of the second supercharger (5) is connected with the port A of the fourth electromagnetic valve (6); the port B of the fifth electromagnetic valve (7) is connected with the X end of a third supercharger (8), and the Y end of the third supercharger (8) is connected with the port A of a sixth electromagnetic valve (9); the port B of the eighth electromagnetic valve (11) is connected with the Y end of a fourth supercharger (12), and the X end of the fourth supercharger (12) is connected with the port A of a ninth electromagnetic valve (13); a port B of the tenth electromagnetic valve (14) is connected with the Y end of a fifth supercharger (15), and the X end of the fifth supercharger (15) is connected with a port A of an eleventh electromagnetic valve (16); the port B of the twelfth electromagnetic valve (17) is connected with the Y end of a sixth pressure booster (18), and the X end of the sixth pressure booster (18) is connected with the port A of a thirteenth electromagnetic valve (19);
a connecting port of the external hydraulic circuit (22) is respectively connected with a port B of the second electromagnetic valve (3), a port B of the fourth electromagnetic valve (6), a port B of the sixth electromagnetic valve (9), a port B of the seventh electromagnetic valve (10), a port B of the ninth electromagnetic valve (13), a port B of the eleventh electromagnetic valve (16) and a port B of the thirteenth electromagnetic valve (19);
a port C1 of the controller (23) is respectively connected with a control port comprising a first electromagnetic valve (1) and a control port comprising a second electromagnetic valve (3); a port C2 of the controller (23) is respectively connected with a control port of the third electromagnetic valve (4) and a control port of the fourth electromagnetic valve (6); a port C3 of the controller (23) is respectively connected with a control port of a fifth electromagnetic valve (7) and a control port of a sixth electromagnetic valve (9); a port C4 of the controller (23) is connected with a control port of a seventh electromagnetic valve (10); a port C5 of the controller (23) is respectively connected with a control port of the eighth electromagnetic valve (11) and a control port of the ninth electromagnetic valve (13); a port C6 of the controller (23) is respectively connected with a control port of a tenth electromagnetic valve (14) and a control port of an eleventh electromagnetic valve (16); a port C7 of the controller (23) is respectively connected with a twelfth electromagnetic valve (17) and a thirteenth electromagnetic valve (19); the port R1 of the controller (23) is connected with the signal output port of the pressure sensor (21);
the ports C1, C2, C3, C4, C5, C6 and C7 of the controller (23) can only output two signals of 'on' and 'off' to the electromagnetic valve;
ports C1, C2, C3, C4, C5, C6 and C7 of the controller (23) only output an opening signal at one port in the working process of the hydraulic accumulator (20), and the other ports output closing signals; all ports C1, C2, C3, C4, C5, C6 and C7 of the controller (23) output 'turn-off' signals in the stopping process of the hydraulic accumulator (20);
the specific working method of the hydraulic accumulator working pressure control circuit is as follows:
1) energy absorption process
Firstly, a port C1 of a controller (23) outputs a 'opening' signal to a first electromagnetic valve (1) and a second electromagnetic valve (3), hydraulic oil of an external hydraulic circuit (22) enters a Y end of a first supercharger (2) through the second electromagnetic valve (3), and hydraulic oil at an X end of the first supercharger (2) is output through the first electromagnetic valve (1) and enters a hydraulic accumulator (20);
secondly, a port C2 of the controller (23) outputs a 'turn-on' signal to a third electromagnetic valve (4) and a fourth electromagnetic valve (6), hydraulic oil of an external hydraulic circuit (22) enters a Y end of a second supercharger (5) through the fourth electromagnetic valve (6), and hydraulic oil at an X end of the second supercharger (5) is output through the third electromagnetic valve (4) and enters a hydraulic accumulator (20);
thirdly, a port C3 of the controller (23) outputs a 'opening' signal to a fifth electromagnetic valve (7) and a sixth electromagnetic valve (9), hydraulic oil of an external hydraulic circuit (22) enters a Y end of a third supercharger (8) through the sixth electromagnetic valve (9), and hydraulic oil at an X end of the third supercharger (8) is output through the fifth electromagnetic valve (7) and enters a hydraulic accumulator (20);
fourthly, a port C4 of the controller (23) outputs an opening signal to the seventh electromagnetic valve (10), and hydraulic oil of the external hydraulic circuit (22) enters the hydraulic accumulator (20) through the sixth electromagnetic valve (9);
fifthly, a port C5 of the controller (23) outputs opening signals to an eighth electromagnetic valve (11) and a ninth electromagnetic valve (13), hydraulic oil of an external hydraulic circuit (22) enters an X end of a fourth supercharger (12) through the ninth electromagnetic valve (13), and hydraulic oil at a Y end of the fourth supercharger (12) is output through the eighth electromagnetic valve (11) and enters a hydraulic accumulator (20);
sixthly, a port C6 of the controller (23) outputs an opening signal to a tenth electromagnetic valve (14) and an eleventh electromagnetic valve (16), hydraulic oil of an external hydraulic circuit (22) enters an X end of a fifth supercharger (15) through the eleventh electromagnetic valve (16), and hydraulic oil at a Y end of the fifth supercharger (15) is output through the tenth electromagnetic valve (14) and enters a hydraulic accumulator (20);
seventhly, a port C7 of the controller (23) outputs opening signals to a twelfth electromagnetic valve (17) and a thirteenth electromagnetic valve (19), hydraulic oil of an external hydraulic circuit (22) enters an X end of a sixth pressure booster (18) through the thirteenth electromagnetic valve (19), and hydraulic oil at a Y end of the sixth pressure booster (18) is output through the twelfth electromagnetic valve (17) and enters a hydraulic energy accumulator (20);
2) energy release process
Firstly, a port C7 of a controller (23) outputs an opening signal to a twelfth electromagnetic valve (17) and a thirteenth electromagnetic valve (19), hydraulic oil of a hydraulic accumulator (20) enters a Y end of a sixth pressure booster (18) through the twelfth electromagnetic valve (17), and hydraulic oil at an X end of the sixth pressure booster (18) is output through the thirteenth electromagnetic valve (19) and enters an external hydraulic loop (22);
secondly, a port C6 of the controller (23) outputs an opening signal to a tenth electromagnetic valve (14) and an eleventh electromagnetic valve (16), hydraulic oil of the hydraulic accumulator (20) enters a Y end of a fifth supercharger (15) through the tenth electromagnetic valve (14), and hydraulic oil at an X end of the fifth supercharger (15) is output through the eleventh electromagnetic valve (16) and enters an external hydraulic loop (22);
thirdly, a port C5 of the controller (23) outputs an opening signal to an eighth electromagnetic valve (11) and a ninth electromagnetic valve (13), hydraulic oil of the hydraulic accumulator (20) enters a Y end of a fourth supercharger (12) through the eighth electromagnetic valve (11), and hydraulic oil at an X end of the fourth supercharger (12) is output through an eleventh electromagnetic valve (13) and enters an external hydraulic loop (22);
fourthly, a port C4 of the controller (23) outputs an opening signal to the seventh electromagnetic valve (10), and hydraulic oil of the hydraulic accumulator (20) enters an external hydraulic loop (22) through a sixth electromagnetic valve (9);
fifthly, a port C3 of the controller (23) outputs opening signals to a fifth electromagnetic valve (7) and a sixth electromagnetic valve (9), hydraulic oil of the hydraulic accumulator (20) enters an X end of a third supercharger (8) through the fifth electromagnetic valve (7), and hydraulic oil at a Y end of the third supercharger (8) is output through the sixth electromagnetic valve (9) and enters an external hydraulic loop (22);
sixthly, a port C2 of the controller (23) outputs a 'turn-on' signal to the third electromagnetic valve (4) and the fourth electromagnetic valve (6), hydraulic oil of the hydraulic accumulator (20) enters an X end of the second supercharger (5) through the third electromagnetic valve (4), and hydraulic oil at a Y end of the second supercharger (5) is output through the fourth electromagnetic valve (6) and enters an external hydraulic loop (22);
seventhly, a port C1 of the controller (23) outputs opening signals to the first electromagnetic valve (1) and the second electromagnetic valve (3), hydraulic oil of the hydraulic accumulator (20) enters an X end of the first supercharger (2) through the first electromagnetic valve (1), and hydraulic oil at a Y end of the first supercharger (2) is output through the second electromagnetic valve (3) and enters an external hydraulic loop (22).
2. The hydraulic accumulator working pressure control circuit of claim 1, wherein: the ratios of the effective acting areas of the X end and the Y end of the first supercharger (2), the second supercharger (5), the third supercharger (8), the fourth supercharger (12), the fifth supercharger (15) and the sixth supercharger (18) are respectively 2:1, 5:3, 4:3, 5:3 and 2: 1.
3. The hydraulic accumulator working pressure control circuit of claim 1, wherein: the hydraulic accumulator (20) can adopt a piston type liquid-gas accumulator or a leather bag type liquid-gas accumulator.
4. The hydraulic accumulator working pressure control circuit of claim 1, wherein: the first electromagnetic valve (1), the second electromagnetic valve (3), the third electromagnetic valve (4), the fourth electromagnetic valve (6), the fifth electromagnetic valve (7), the sixth electromagnetic valve (9), the seventh electromagnetic valve (10), the eighth electromagnetic valve (11), the ninth electromagnetic valve (13), the tenth electromagnetic valve (14), the eleventh electromagnetic valve (16), the twelfth electromagnetic valve (17) and the thirteenth electromagnetic valve (19) are all high-speed electromagnetic valves.
5. The hydraulic accumulator working pressure control circuit of claim 1, wherein: the pressure sensor (21) has a measurement range of 0 to 150 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444343.XA CN110118206B (en) | 2019-05-27 | 2019-05-27 | Novel hydraulic accumulator control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444343.XA CN110118206B (en) | 2019-05-27 | 2019-05-27 | Novel hydraulic accumulator control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110118206A CN110118206A (en) | 2019-08-13 |
| CN110118206B true CN110118206B (en) | 2020-07-24 |
Family
ID=67523287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910444343.XA Active CN110118206B (en) | 2019-05-27 | 2019-05-27 | Novel hydraulic accumulator control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118206B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5971027A (en) * | 1996-07-01 | 1999-10-26 | Wisconsin Alumni Research Foundation | Accumulator for energy storage and delivery at multiple pressures |
| FR2978215A1 (en) * | 2011-07-19 | 2013-01-25 | Peugeot Citroen Automobiles Sa | Closed hydraulic system for hybrid vehicle, has pressure reduction jack whose chamber provided with small section is connected to high pressure part and chamber provided with large section is connected to low pressure part |
| CN103615443A (en) * | 2013-12-03 | 2014-03-05 | 三一汽车制造有限公司 | Energy recovery hydraulic system and engineering machine |
| CN103703257A (en) * | 2011-06-28 | 2014-04-02 | 卡特彼勒公司 | Hydraulic control system having swing motor energy recovery |
| WO2017084792A1 (en) * | 2015-11-20 | 2017-05-26 | Robert Bosch Gmbh | Energy storage system |
| CN107044455A (en) * | 2017-03-27 | 2017-08-15 | 华侨大学 | A kind of hydraulic accumulator pressure active control system and control method |
-
2019
- 2019-05-27 CN CN201910444343.XA patent/CN110118206B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5971027A (en) * | 1996-07-01 | 1999-10-26 | Wisconsin Alumni Research Foundation | Accumulator for energy storage and delivery at multiple pressures |
| CN103703257A (en) * | 2011-06-28 | 2014-04-02 | 卡特彼勒公司 | Hydraulic control system having swing motor energy recovery |
| FR2978215A1 (en) * | 2011-07-19 | 2013-01-25 | Peugeot Citroen Automobiles Sa | Closed hydraulic system for hybrid vehicle, has pressure reduction jack whose chamber provided with small section is connected to high pressure part and chamber provided with large section is connected to low pressure part |
| CN103615443A (en) * | 2013-12-03 | 2014-03-05 | 三一汽车制造有限公司 | Energy recovery hydraulic system and engineering machine |
| WO2017084792A1 (en) * | 2015-11-20 | 2017-05-26 | Robert Bosch Gmbh | Energy storage system |
| CN107044455A (en) * | 2017-03-27 | 2017-08-15 | 华侨大学 | A kind of hydraulic accumulator pressure active control system and control method |
Non-Patent Citations (1)
| Title |
|---|
| Design of a Free-Piston Engine-Pump;Beachley等;《Society of Automotive Engineers》;19920930;第5-6页及图4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110118206A (en) | 2019-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201836129U (en) | Quick pressure lifting device for accumulator on hydraulic pump station | |
| CN202118019U (en) | Hydraulic control component and control loop applying same | |
| WO2005079491A3 (en) | System and method for multi-lift valve actuation | |
| CN110118206B (en) | Novel hydraulic accumulator control circuit | |
| WO2021169175A1 (en) | Oilway structure for achieving precise control of double-acting cylinder | |
| CN219827353U (en) | Hydraulic tool with double hydraulic circuits | |
| CN208474211U (en) | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system | |
| CN110578732B (en) | Energy storage type hydraulic cylinder with built-in welded piston rod | |
| CN108167256A (en) | A kind of plug-in trimmer valve | |
| CN201284764Y (en) | High-capacity hydraulic accumulator | |
| CN108533537A (en) | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system | |
| CN205173095U (en) | Clapper die spotting press multistage control mode locking pressurize hydraulic control system | |
| CN211965841U (en) | Hydraulic servo system for sliding part of sand shooting molding machine | |
| CN210565411U (en) | Hydraulic circuit for controlling sequential action of oil cylinders | |
| CN210599612U (en) | Continuous impact pressurization system for double-pump oil supply | |
| GB1521834A (en) | Hydraulic system | |
| CN210423203U (en) | Hydraulic pressure maintaining and self-unloading energy-saving valve group | |
| CN112797037A (en) | Continuous pressurization system with adjustable pressurization rate and control method thereof | |
| CN107906059B (en) | High-pressure pump pressure stabilizing system and method | |
| CN209925316U (en) | Automatic continuous single-action supercharging device | |
| CN203892276U (en) | Hydraulic ejection system | |
| CN219432330U (en) | Hydraulic buffer system | |
| CN212690516U (en) | Pressure impact protection device of hydraulic servo harmonic vibrator | |
| CN220646339U (en) | Oil cylinder control valve group | |
| CN209838823U (en) | Oil cylinder with built-in quick and pressurizing functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |