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CN110118206B - Novel hydraulic accumulator control circuit - Google Patents

Novel hydraulic accumulator control circuit Download PDF

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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
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electromagnetic valve
port
supercharger
hydraulic
controller
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CN110118206A (en
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贺湘宇
胡薜礼
肖广鑫
谭丽莎
贺尚红
唐宏宾
张鹏
徐晓强
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Changsha University of Science and Technology
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    • 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

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  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve Device For Special Equipments (AREA)
  • Magnetically Actuated Valves (AREA)

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

一种新型液压蓄能器控制回路A Novel Hydraulic Accumulator Control Circuit

技术领域technical field

本发明涉及液压系统节能技术领域，具体的说，涉及到一种新型液压蓄能器控制回路。The invention relates to the technical field of energy saving of hydraulic systems, in particular to a novel hydraulic accumulator control circuit.

背景技术Background technique

液压蓄能器是液压系统中一种常见的液压储能元件，可存储具有一定压力的液压油。当液压蓄能器内油液压力较低，而液压系统油液压力较高时，液压蓄能器则吸收高压油；当液压蓄能器内油液压力较高，而液压系统油液压力较低时，蓄能器可释放高压油。Hydraulic accumulator is a common hydraulic energy storage element in hydraulic system, which can store hydraulic oil with a certain pressure. When the oil pressure in the hydraulic accumulator is low and the oil pressure in the hydraulic system is high, the hydraulic accumulator absorbs high-pressure oil; when the oil pressure in the hydraulic accumulator is high, and the oil pressure in the hydraulic system is relatively high When low, the accumulator releases high pressure oil.

由于现有的液压蓄能器中的压力油的吸收和释放均是被动完成的，导致在其工作过程中产生如下不足：（1）液压蓄能器功率密度高而能量密度低；（2）液压蓄能器吸收和释放过程中内部油液压力变动大；（3）液压蓄能器的工作过程可控性差等。Since the absorption and release of the pressure oil in the existing hydraulic accumulator are done passively, the following deficiencies occur in the working process: (1) the hydraulic accumulator has high power density and low energy density; (2) The internal oil pressure fluctuates greatly during the absorption and release process of the hydraulic accumulator; (3) the controllability of the working process of the hydraulic accumulator is poor.

因此，针对现有的液压蓄能器的不足，提出一种新型液压蓄能器控制回路具有重要的实用价值。Therefore, in view of the shortcomings of the existing hydraulic accumulators, it is of great practical value to propose a new hydraulic accumulator control circuit.

发明内容SUMMARY OF THE INVENTION

本发明公开了一种液压蓄能器工作压力控制回路，其特征在于：包括第一电磁阀、第一增压器、第二电磁阀、第三电磁阀、第二增压器、第四电磁阀、第五电磁阀、第三增压器、第六电磁阀、第七电磁阀、第八电磁阀、第四增压器、第九电磁阀、第十电磁阀、第五增压器、第十一电磁阀、第十二电磁阀、第六增压器、第十三电磁阀、液压蓄能器、压力传感器、外部液压回路、控制器；所述液压蓄能器分别与第一电磁阀的A口、第三电磁阀的A口、第五电磁阀的A口、第七电磁阀的A口、第八电磁阀的A口、第十电磁阀、第十二电磁阀的A口、压力传感器的测量口相连；所述第一电磁阀的B口与第一增压器的X端相连，第一增压器的Y端与第二电磁阀的A口相连；所述第三电磁阀的B口与第二增压器的X端相连，第二增压器的Y端与第四电磁阀的A口相连；所述第五电磁阀的B口与第三增压器的X端相连，第三增压器的Y端与第六电磁阀的A口相连；所述第八电磁阀的B口与第四增压器的Y端相连，第四增压器的X端与第九电磁阀的A口相连；所述第十电磁阀的B口与第五增压器的Y端相连，第五增压器的X端与第十一电磁阀的A口相连；所述第十二电磁阀的B口与第六增压器的Y端相连，第六增压器的X端与第十三电磁阀的A口相连；所述外部液压回路的连接口分别与第二电磁阀的B口、第四电磁阀的B口、第六电磁阀的B口、第七电磁阀的B口、第九电磁阀的B口、第十一电磁阀的B、第十三电磁阀的B口相连；所述控制器的端口C1分别与包括第一电磁阀的控制口、第二电磁阀的控制口相连；所述控制器的端口C2分别与第三电磁阀的控制口、第四电磁阀的控制口相连；所述控制器的端口C3分别与第五电磁阀的控制口、第六电磁阀的控制口相连；所述控制器的端口C4与第七电磁阀的控制口相连；所述控制器的端口C5分别与第八电磁阀的控制口、第九电磁阀的控制口相连；所述控制器的端口C6分别与第十电磁阀的控制口、第十一电磁阀的控制口相连；所述控制器的端口C7分别与第十二电磁阀、第十三电磁阀相连；所述控制器的端口R1与压力传感器的信号输出端口相连；控制器的端口C1、C2、C3、C4、C5、C6、C7只能对电磁阀输出“开通”和“关断”两种信号；The invention discloses a working pressure control circuit of a hydraulic accumulator, which is characterized by comprising a first solenoid valve, a first booster, a second solenoid valve, a third solenoid valve, a second booster and a fourth solenoid valve, fifth solenoid valve, third solenoid valve, sixth solenoid valve, seventh solenoid valve, eighth solenoid valve, fourth booster, ninth solenoid valve, tenth solenoid valve, fifth booster, Eleventh solenoid valve, twelfth solenoid valve, sixth booster, thirteenth solenoid valve, hydraulic accumulator, pressure sensor, external hydraulic circuit, controller; the hydraulic accumulator is respectively connected with the first solenoid valve Port A of the valve, Port A of the third solenoid valve, Port A of the fifth solenoid valve, Port A of the seventh solenoid valve, Port A of the eighth solenoid valve, Port A of the tenth solenoid valve, Port A of the twelfth solenoid valve , the measurement port of the pressure sensor is connected; the B port of the first solenoid valve is connected to the X end of the first supercharger, and the Y end of the first supercharger is connected to the A port of the second solenoid valve; the third The B port of the solenoid valve is connected to the X end of the second supercharger, the Y end of the second supercharger is connected to the A port of the fourth solenoid valve; the B port of the fifth solenoid valve is connected to the third supercharger. The X end is connected, the Y end of the third supercharger is connected to the A port of the sixth solenoid valve; the B port of the eighth solenoid valve is connected to the Y end of the fourth supercharger, and the X end of the fourth supercharger is connected. It is connected with the A port of the ninth solenoid valve; the B port of the tenth solenoid valve is connected with the Y end of the fifth supercharger, and the X end of the fifth supercharger is connected with the A port of the eleventh solenoid valve; The B port of the twelfth solenoid valve is connected to the Y end of the sixth supercharger, and the X end of the sixth supercharger is connected to the A port of the thirteenth solenoid valve; the connection ports of the external hydraulic circuit are respectively connected to the The B port of the second solenoid valve, the B port of the fourth solenoid valve, the B port of the sixth solenoid valve, the B port of the seventh solenoid valve, the B port of the ninth solenoid valve, the B port of the eleventh solenoid valve, the thirteenth solenoid valve The B port of the solenoid valve is connected; the port C1 of the controller is respectively connected with the control port of the first solenoid valve and the control port of the second solenoid valve; the port C2 of the controller is respectively connected with the control port of the third solenoid valve , the control port of the fourth solenoid valve is connected; the port C3 of the controller is respectively connected with the control port of the fifth solenoid valve and the control port of the sixth solenoid valve; the port C4 of the controller is connected with the control port of the seventh solenoid valve The port C5 of the controller is respectively connected with the control port of the eighth solenoid valve and the control port of the ninth solenoid valve; the port C6 of the controller is respectively connected with the control port of the tenth solenoid valve and the control port of the eleventh solenoid valve. The control port of the valve is connected; the port C7 of the controller is connected with the twelfth solenoid valve and the thirteenth solenoid valve respectively; 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, C7 can only output two signals of "on" and "off" to the solenoid valve;

优选地，第一增压器、第二增压器、第三增压器、第四增压器、第五增压器、第六增压器的X端的有效作用面积与Y端的有效作用面积之比分别为2:1、5:3、4:3、4:3、5:3、2:1。Preferably, the effective working area of the X end and the effective working 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 The ratios are 2:1, 5:3, 4:3, 4:3, 5:3, 2:1.

优选地，液压蓄能器可采用活塞式液气蓄能器或皮囊式液气蓄能器。Preferably, the hydraulic accumulator can be a piston-type liquid-gas accumulator or a bladder-type liquid-gas accumulator.

优选地，第一电磁阀、第二电磁阀、第三电磁阀、第四电磁阀、第五电磁阀、第六电磁阀、第七电磁阀、第八电磁阀、第九电磁阀、第十电磁阀、第十一电磁阀、第十二电磁阀、第十三电磁阀均为高速电磁阀。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 solenoid valve, the eleventh solenoid valve, the twelfth solenoid valve, and the thirteenth solenoid valve are all high-speed solenoid valves.

优选地，压力传感器的测量范围为0到150MPa。Preferably, the pressure sensor has a measurement range of 0 to 150 MPa.

本发明能够有效改善液压蓄能器出口压力变动剧烈的问题，减小了液压蓄能器对于主液压回路的冲击，具有较高的实用性。The invention can effectively improve the problem that the outlet pressure of the hydraulic accumulator fluctuates violently, reduce the impact of the hydraulic accumulator on the main hydraulic circuit, and has high practicability.

附图说明Description of drawings

图1为本发明中控制回路的液压原理图。Fig. 1 is the hydraulic principle diagram of the control circuit in the present invention.

图中标记如下：The figures are marked as follows:

1-第一电磁阀；2-第一增压器；3-第二电磁阀；4-第三电磁阀；5-第二增压器；6-第四电磁阀；7-第五电磁阀；8-第三增压器；9-第六电磁阀；10-第七电磁阀、11-第八电磁阀、12-第四增压器、13-第九电磁阀、14-第十电磁阀、15-第五增压器、16-第十一电磁阀、17-第十二电磁阀、18-第六增压器、19-第十三电磁阀、20-液压蓄能器、21-压力传感器、22-外部液压回路、23-控制器。1-first solenoid valve; 2-first booster; 3-second solenoid valve; 4-third solenoid valve; 5-second booster; 6-fourth solenoid valve; 7-fifth solenoid valve ; 8-third supercharger; 9-sixth solenoid valve; 10-seventh solenoid valve, 11-eighth solenoid valve, 12-fourth booster, 13-ninth solenoid valve, 14-tenth solenoid Valve, 15-fifth booster, 16-eleven solenoid valve, 17-twelfth solenoid valve, 18-sixth booster, 19-thirteenth solenoid valve, 20-hydraulic accumulator, 21 - pressure sensor, 22- external hydraulic circuit, 23- controller.

具体实施方式Detailed ways

如图1所示，一种液压蓄能器工作压力控制回路，包括第一电磁阀1、第一增压器2、第二电磁阀3、第三电磁阀4、第二增压器5、第四电磁阀6、第五电磁阀7、第三增压器8、第六电磁阀9、第七电磁阀10、第八电磁阀11、第四增压器12、第九电磁阀13、第十电磁阀14、第五增压器15、第十一电磁阀16、第十二电磁阀17、第六增压器18、第十三电磁阀19、液压蓄能器20、压力传感器21、外部液压回路22、控制器23；所述液压蓄能器20分别与第一电磁阀1的A口、第三电磁阀4的A口、第五电磁阀7的A口、第七电磁阀10的A口、第八电磁阀11的A口、第十电磁阀14、第十二电磁阀17的A口、压力传感器21的测量口相连；所述第一电磁阀1的B口与第一增压器2的X端相连，第一增压器2的Y端与第二电磁阀3的A口相连；所述第三电磁阀4的B口与第二增压器5的X端相连，第二增压器5的Y端与第四电磁阀6的A口相连；所述第五电磁阀7的B口与第三增压器8的X端相连，第三增压器8的Y端与第六电磁阀9的A口相连；所述第八电磁阀11的B口与第四增压器12的Y端相连，第四增压器12的X端与第九电磁阀13的A口相连；所述第十电磁阀14的B口与第五增压器15的Y端相连，第五增压器15的X端与第十一电磁阀16的A口相连；所述第十二电磁阀17的B口与第六增压器18的Y端相连，第六增压器18的X端与第十三电磁阀16的A口相连；所述外部液压回路22的连接口分别与第三电磁阀4的B口、第四电磁阀6的B口、第六电磁阀9的B口、第七电磁阀10的B口、第九电磁阀13的B口、第十一电磁阀16的B口、第十三电磁阀19的B口相连；所述控制器23的端口C1分别与包括第一电磁阀1的控制口、第二电磁阀3的控制口相连；所述控制器23的端口C2分别与第三电磁阀4的控制口、第四电磁阀6的控制口相连；所述控制器23的端口C3分别与第五电磁阀7的控制口、第六电磁阀9的控制口相连；所述控制器23的端口C4与第七电磁阀10的控制口相连；所述控制器23的端口C5分别与第八电磁阀11的控制口、第九电磁阀13的控制口相连；所述控制器23的端口C6分别与第十电磁阀14的控制口、第十一电磁阀16的控制口相连；所述控制器23的端口C7分别与第十二电磁阀17、第十三电磁阀19相连；所述控制器23的端口R1与压力传感器21的信号输出端口相连；控制器23的端口C1、C2、C3、C4、C5、C6、C7只能对电磁阀输出“开通”和“关断”两种信号；控制器23的端口C1、C2、C3、C4、C5、C6、C7在液压蓄能器20工作过程中只有一路端口输出“开通”信号，其余端口输出“关断”信号；控制器23的端口C1、C2、C3、C4、C5、C6、C7在液压蓄能器20停止过程中全部端口均输出“关断”信号。As shown in Figure 1, a hydraulic accumulator working pressure control circuit includes a first solenoid valve 1, a first booster 2, a second solenoid valve 3, a third solenoid valve 4, a second booster 5, Fourth solenoid valve 6, fifth solenoid valve 7, third booster 8, sixth solenoid valve 9, seventh solenoid valve 10, eighth solenoid valve 11, fourth booster 12, ninth solenoid valve 13, Tenth solenoid valve 14 , fifth booster 15 , eleventh solenoid valve 16 , twelfth solenoid valve 17 , sixth booster 18 , thirteenth solenoid valve 19 , hydraulic accumulator 20 , pressure sensor 21 , an external hydraulic circuit 22, a controller 23; the hydraulic accumulator 20 is respectively connected to the port A of the first solenoid valve 1, the port A of the third solenoid valve 4, the port A of the fifth solenoid valve 7, and the seventh solenoid valve The A port of 10, the A port of the eighth solenoid valve 11, the tenth solenoid valve 14, the A port of the twelfth solenoid valve 17, and the measurement port of the pressure sensor 21 are connected; the B port of the first solenoid valve 1 is connected to the The X end of a supercharger 2 is connected, the Y end of the first supercharger 2 is connected to the A port of the second solenoid valve 3 ; the B port of the third solenoid valve 4 is connected to the X end of the second supercharger 5 The Y end of the second supercharger 5 is connected to the A port of the fourth solenoid valve 6; the B port of the fifth solenoid valve 7 is connected to the X end of the third supercharger 8, and the third supercharger 8 The Y end of the solenoid valve is connected to the A port of the sixth solenoid valve 9; the B port of the eighth solenoid valve 11 is connected to the Y end of the fourth supercharger 12, and the X end of the fourth supercharger 12 is connected to the ninth solenoid valve. 13 is connected to the A port; the B port of the tenth solenoid valve 14 is connected to the Y end of the fifth supercharger 15, and the X end of the fifth supercharger 15 is connected to the A port of the eleventh solenoid valve 16; The B port of the twelfth solenoid valve 17 is connected to the Y end of the sixth supercharger 18, and the X end of the sixth supercharger 18 is connected to the A port of the thirteenth solenoid valve 16; The connection ports are respectively connected with the B port of the third solenoid valve 4, the B port of the fourth solenoid valve 6, the B port of the sixth solenoid valve 9, the B port of the seventh solenoid valve 10, the B port of the ninth solenoid valve 13, and the B port of the sixth solenoid valve 9. The B port of the eleventh solenoid valve 16 and the B port of the thirteenth solenoid valve 19 are connected; the port C1 of the controller 23 is respectively connected with the control port of the first solenoid valve 1 and the control port of the second solenoid valve 3; The port C2 of the controller 23 is respectively connected with the control port of the third solenoid valve 4 and the control port of the fourth solenoid valve 6; the port C3 of the controller 23 is respectively connected with the control port of the fifth solenoid valve 7 and the control port of the sixth solenoid valve 6 The control port of the solenoid valve 9 is connected; the port C4 of the controller 23 is connected to the control port of the seventh solenoid valve 10; the port C5 of the controller 23 is respectively connected with the control port of the eighth solenoid valve 11 and the ninth solenoid valve 13 is connected to the control port; the port C6 of the controller 23 is connected to the control port of the tenth solenoid valve 14 and the control port of the eleventh solenoid valve 16 respectively; the port C7 of the controller 23 is respectively connected to the twelfth solenoid valve The valve 17 and the thirteenth solenoid valve 19 are connected; the port R1 of the controller 23 is connected to the signal output port of the pressure sensor 21; the ports C1, C2, C3, C4, C of the controller 23 5. C6 and C7 can only output two signals of "on" and "off" to the solenoid valve; the ports C1, C2, C3, C4, C5, C6, and C7 of the controller 23 are in the working process of the hydraulic accumulator 20. Only one port outputs the "on" signal, and the other ports output the "off" signal; the ports C1, C2, C3, C4, C5, C6, and C7 of the controller 23 all output the "on" signal when the hydraulic accumulator 20 stops. off” signal.

第一增压器2、第二增压器5、第三增压器8、第四增压器12、第五增压器15、第六增压器18的X端的有效作用面积与Y端的有效作用面积之比分别为2:1、5:3、4:3、4:3、5:3、2:1。The effective working area of the X 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 is the same as that of the Y end. The ratio of effective area is 2:1, 5:3, 4:3, 4:3, 5:3, 2:1, respectively.

液压蓄能器20可采用活塞式液气蓄能器或皮囊式液气蓄能器。The hydraulic accumulator 20 can be a piston-type liquid-gas accumulator or a bladder-type liquid-gas accumulator.

第一电磁阀1、第二电磁阀3、第三电磁阀4、第四电磁阀6、第五电磁阀7、第六电磁阀9、第七电磁阀10、第八电磁阀11、第九电磁阀13、第十电磁阀14、第十一电磁阀16、第十二电磁阀17、第十三电磁阀19均为高速电磁阀。First solenoid valve 1, second solenoid valve 3, third solenoid valve 4, fourth solenoid valve 6, fifth solenoid valve 7, sixth solenoid valve 9, seventh solenoid valve 10, eighth solenoid valve 11, ninth solenoid valve The 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.

压力传感器21的测量范围为0到150MPa。The measurement range of the pressure sensor 21 is 0 to 150 MPa.

本发明的具体工作方法如下：The concrete working method of the present invention is as follows:

(1) 能量吸收过程(1) Energy absorption process

第一步，控制器23端口C1对第一电磁阀1和第二电磁阀3输出“开通”信号，外部液压回路22的液压油经第二电磁阀3进入第一增压器2的Y端，将第一增压器2的X端液压油经第一电磁阀1输出，进入液压蓄能器20；In the first step, the port C1 of the controller 23 outputs an "on" signal to the first solenoid valve 1 and the second solenoid valve 3, and the hydraulic oil of the external hydraulic circuit 22 enters the Y end of the first supercharger 2 through the second solenoid valve 3 , the X-end hydraulic oil of the first supercharger 2 is output through the first solenoid valve 1 and enters the hydraulic accumulator 20;

第二步，控制器23端口C2对第三电磁阀4和第四电磁阀6输出“开通”信号，外部液压回路22的液压油经第四电磁阀6进入第二增压器5的Y端，将第二增压器5的X端液压油经第三电磁阀4输出，进入液压蓄能器20；In the second step, the port C2 of the controller 23 outputs an "on" signal to the third solenoid valve 4 and the fourth solenoid valve 6, and the hydraulic oil of the external hydraulic circuit 22 enters the Y end of the second supercharger 5 through the fourth solenoid valve 6 , the X-end hydraulic oil of the second supercharger 5 is output through the third solenoid valve 4 and enters the hydraulic accumulator 20;

第三步，控制器23端口C3对第五电磁阀7和第六电磁阀9输出“开通”信号，外部液压回路22的液压油经第六电磁阀9进入第三增压器8的Y端，将第三增压器8的X端液压油经第五电磁阀7输出，进入液压蓄能器20；In the third step, the port C3 of the controller 23 outputs an "on" signal to the fifth solenoid valve 7 and the sixth solenoid valve 9, and the hydraulic oil of the external hydraulic circuit 22 enters the Y end of the third supercharger 8 through the sixth solenoid valve 9 , the X-end hydraulic oil of the third supercharger 8 is output through the fifth solenoid valve 7 and enters the hydraulic accumulator 20;

第四步，控制器23端口C4对第七电磁阀10输出“开通”信号，外部液压回路22的液压油经第六电磁阀9进入液压蓄能器20；In the fourth step, the port C4 of the controller 23 outputs an "open" signal to the seventh solenoid valve 10, and the hydraulic oil of the external hydraulic circuit 22 enters the hydraulic accumulator 20 through the sixth solenoid valve 9;

第五步，控制器23端口C5对第八电磁阀11和第九电磁阀13输出“开通”信号，外部液压回路22的液压油经第九电磁阀12进入第四增压器12的X端，将第四增压器12的Y端液压油经第八电磁阀11输出，进入液压蓄能器20；In the fifth step, the port C5 of the controller 23 outputs an "on" signal to the eighth solenoid valve 11 and the ninth solenoid valve 13, and the hydraulic oil of the external hydraulic circuit 22 enters the X end of the fourth supercharger 12 through the ninth solenoid valve 12. , the Y-end hydraulic oil of the fourth supercharger 12 is output through the eighth solenoid valve 11 and enters the hydraulic accumulator 20;

第六步，控制器23端口C6对第十电磁阀14和第十一电磁阀16输出“开通”信号，外部液压回路22的液压油经第十一电磁阀16进入第五增压器15的X端，将第五增压器15的Y端液压油经第十电磁阀14输出，进入液压蓄能器20；In the sixth step, the port C6 of the controller 23 outputs an "on" signal to the tenth solenoid valve 14 and the eleventh solenoid valve 16, and the hydraulic oil of the external hydraulic circuit 22 enters the fifth booster 15 through the eleventh solenoid valve 16. At the X end, the Y end hydraulic oil of the fifth supercharger 15 is output through the tenth solenoid valve 14 and enters the hydraulic accumulator 20;

第七步，控制器23端口C7对第十二电磁阀17和第十三电磁阀19输出“开通”信号，外部液压回路22的液压油经第十三电磁阀19进入第六增压器18的X端，将第六增压器18的Y端液压油经第十二电磁阀17输出，进入液压蓄能器20；In the seventh step, the port C7 of the controller 23 outputs an "on" signal to the twelfth solenoid valve 17 and the thirteenth solenoid valve 19, and the hydraulic oil of the external hydraulic circuit 22 enters the sixth supercharger 18 through the thirteenth solenoid valve 19. The X end of the sixth supercharger 18 is output through the twelfth solenoid valve 17 and enters the hydraulic accumulator 20;

(2) 能量释放过程(2) Energy release process

第一步，控制器23端口C7对第十二电磁阀17和第十三电磁阀19输出“开通”信号，液压蓄能器20的液压油经第十二电磁阀17进入第六增压器18的Y端，将第六增压器18的X端液压油经第十三电磁阀19输出，进入外部液压回路22；In the first step, the port C7 of the controller 23 outputs an "on" signal to the twelfth solenoid valve 17 and the thirteenth solenoid valve 19, and the hydraulic oil of the hydraulic accumulator 20 enters the sixth supercharger through the twelfth solenoid valve 17 At the Y end of 18, the X end hydraulic oil of the sixth supercharger 18 is output through the thirteenth solenoid valve 19 and enters the external hydraulic circuit 22;

第二步，控制器23端口C6对第十电磁阀14和第十一电磁阀16输出“开通”信号，液压蓄能器20的液压油经第十电磁阀14进入第五增压器15的Y端，将第五增压器15的X端液压油经十一电磁阀16输出，进入外部液压回路22；In the second step, the port C6 of the controller 23 outputs an "on" signal to the tenth solenoid valve 14 and the eleventh solenoid valve 16, and the hydraulic oil of the hydraulic accumulator 20 enters the fifth booster 15 through the tenth solenoid valve 14. At the Y end, the hydraulic oil at the X end of the fifth supercharger 15 is output through the eleven solenoid valve 16 and enters the external hydraulic circuit 22;

第三步，控制器23端口C5对第八电磁阀11和第九电磁阀13输出“开通”信号，液压蓄能器20的液压油经第八电磁阀11进入第四增压器12的Y端，将第四增压器12的X端液压油经十一电磁阀13输出，进入外部液压回路22；In the third step, the port C5 of the controller 23 outputs an "on" signal to the eighth solenoid valve 11 and the ninth solenoid valve 13, and the hydraulic oil of the hydraulic accumulator 20 enters the Y of the fourth supercharger 12 through the eighth solenoid valve 11. end, the X-end hydraulic oil of the fourth supercharger 12 is output through the eleven solenoid valve 13 and enters the external hydraulic circuit 22;

第四步，控制器23端口C4对第七电磁阀10输出“开通”信号，液压蓄能器20的液压油经第六电磁阀9进入外部液压回路22；In the fourth step, the port C4 of the controller 23 outputs an "open" signal to the seventh solenoid valve 10, and the hydraulic oil of the hydraulic accumulator 20 enters the external hydraulic circuit 22 through the sixth solenoid valve 9;

第五步，控制器23端口C3对第五电磁阀7和第六电磁阀9输出“开通”信号，液压蓄能器20的液压油经第五电磁阀7进入第三增压器8的X端，将第三增压器8的Y端液压油经第六电磁阀9输出，进入外部液压回路22；In the fifth step, the port C3 of the controller 23 outputs an "on" signal to the fifth solenoid valve 7 and the sixth solenoid valve 9, and the hydraulic oil of the hydraulic accumulator 20 enters the X of the third supercharger 8 through the fifth solenoid valve 7. end, the Y-end hydraulic oil of the third supercharger 8 is output through the sixth solenoid valve 9 and enters the external hydraulic circuit 22;

第六步，控制器23端口C2对第三电磁阀4和第四电磁阀6输出“开通”信号，液压蓄能器20的液压油经第三电磁阀4进入第二增压器5的X端，将第二增压器5的Y端液压油经第四电磁阀6输出，进入外部液压回路22；In the sixth step, the port C2 of the controller 23 outputs an "on" signal to the third solenoid valve 4 and the fourth solenoid valve 6, and the hydraulic oil of the hydraulic accumulator 20 enters the X of the second supercharger 5 through the third solenoid valve 4. end, the Y-end hydraulic oil of the second supercharger 5 is output through the fourth solenoid valve 6 and enters the external hydraulic circuit 22;

第七步，控制器23端口C1对第一电磁阀1和第二电磁阀3输出“开通”信号，液压蓄能器20的液压油经第一电磁阀1进入第一增压器2的X端，将第一增压器2的Y端液压油经第二电磁阀3输出，进入外部液压回路22。In the seventh step, the port C1 of the controller 23 outputs an "on" signal to the first solenoid valve 1 and the second solenoid valve 3, and the hydraulic oil of the hydraulic accumulator 20 enters the X of the first supercharger 2 through the first solenoid valve 1. At the end, the Y-end hydraulic oil of the first supercharger 2 is output through the second solenoid 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.
CN201910444343.XA 2019-05-27 2019-05-27 Novel hydraulic accumulator control circuit Active CN110118206B (en)

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