CN216278728U

CN216278728U - High-performance accumulator pressure charging and releasing valve bank

Info

Publication number: CN216278728U
Application number: CN202122185943.4U
Authority: CN
Inventors: 吴成正
Original assignee: Yuethai Hydraulic Technology Shanghai Co ltd
Current assignee: Yuethai Hydraulic Technology Shanghai Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-04-12
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a high-performance energy accumulator charging and discharging valve group, which comprises a valve block, wherein a P oil port and a T oil port are respectively arranged on the right side of the valve block, a first energy accumulator and a second energy accumulator are respectively arranged on the upper side and the lower side of the valve block, a main control oil way with the end part connected with the P oil port is arranged in the valve block, a third one-way valve is connected in the main control oil way, the first energy accumulator is connected with the main control oil way through a first one-way valve, the second energy accumulator is connected with the main control oil way through a second one-way valve, the first one-way valve and the second one-way valve are both positioned at the output end of the third one-way valve, a discharging oil way is arranged in the valve block, an AC oil port and an AB oil port are arranged on the valve block, the AC oil port is communicated with the output end of the first one-way valve, the AB oil port is communicated with the output end of the second one-way valve, and a differential overflow valve and a logic valve are respectively arranged on the valve block. The valve bank can automatically switch oil filling and discharging, saves the energy consumption of the whole valve bank, and simultaneously reduces the loss of the valve bank to related elements due to overhigh temperature.

Description

High-performance accumulator pressure charging and releasing valve bank

Technical Field

The utility model relates to the technical field of hydraulic valve banks, in particular to a high-performance accumulator pressure charging and discharging valve bank.

Background

At present, each mechanism action of engineering machinery is controlled by a hydraulic system to be completed, when the machine works, certain high-pressure oil needs to be continuously provided by some oil ways, and the high pressure is directly output and provided by an oil pump in actual work, so that the high-pressure oil needs to be provided by long-time high-efficiency work, the energy consumption is wasted, the sealing element is aged under long-time high pressure, and meanwhile, the service life of related accessories can be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-performance accumulator pressure charging and discharging valve bank to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a pressure release valves is filled to energy storage ware of high performance, includes the valve block, the right side of valve block is equipped with P hydraulic fluid port and T hydraulic fluid port respectively, first energy storage ware and second energy storage ware are installed respectively to the upper and lower both sides of valve block, be equipped with the main control oil circuit that tip and P hydraulic fluid port are connected in the valve block, be connected with the third check valve in the main control oil circuit, first energy storage ware passes through first check valve and is connected with main control oil circuit, the second energy storage ware passes through the second check valve and is connected with main control oil circuit, first check valve, second check valve all are located the output of third check valve, be equipped with the pressure release oil circuit in the valve block, the other end and the T hydraulic fluid port of pressure release oil circuit are connected, be equipped with AC hydraulic fluid port and AB hydraulic fluid port on the valve block, the AC hydraulic fluid port communicates with the output of first check valve, the AB hydraulic fluid port communicates with the output of second check valve.

The differential overflow valve and the logic valve are respectively installed on the valve block, an oil inlet of the logic valve is communicated with a main control oil path in front of an input end of the third one-way valve, an oil drainage port of the logic valve is connected with a pressure relief oil path, a control port of the logic valve is connected with an oil inlet of the differential overflow valve, a control port of the differential overflow valve is connected with the main control oil path, and an oil drainage port of the differential overflow valve is connected with the pressure relief oil path.

Preferably, a main overflow valve is connected between the inner end of the main control oil path and the pressure relief oil path, and the set pressure of the main overflow valve is greater than the set pressure of the differential overflow valve.

Preferably, the shells of the first energy accumulator and the second energy accumulator are of metal tank structures and are equal in size.

Compared with the prior art, the utility model has the beneficial effects that: the first check valve and the second check valve respectively maintain pressure for the first energy accumulator and the second energy accumulator, so that the pressure of a P1 oil port is finally maintained, when the first check valve and the second check valve are in pressure maintenance, the logic valve and the differential overflow valve are opened to release pressure, the system pressure is zero, when the pressure at the first check valve and the second check valve is reduced to set a pressure threshold value for the differential overflow valve, the closing pressure of the logic valve and the differential overflow valve is increased, oil is automatically supplied to the first energy accumulator and the second energy accumulator to enable the pressure to be maintained all the time, the valve bank can automatically switch oil filling and releasing, the energy consumption of the whole valve bank is saved, and meanwhile, the loss of the valve bank to related elements due to overhigh temperature is reduced.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic diagram of the right view structure of the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic diagram of the principle of the present invention.

In the figure: 1. a valve block; 2. a first check valve; 3. a second one-way valve; 4. a main overflow valve; 5. a differential relief valve; 6. a logic valve; 7. a second accumulator; 8. a first accumulator; 9. a third check valve; 10. a P1 oil port; 11. a T oil port; 12. an AC oil port; 13. an AB oil port; 14. a main control oil way; 15. and a pressure relief oil path.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a high performance's energy storage ware pressure charging and discharging valves, includes valve block 1, and the right side of valve block 1 is equipped with P1 hydraulic fluid port 10 and T hydraulic fluid port 11 respectively, and first energy storage ware 8 and second energy storage ware 7 are installed respectively to the upper and lower both sides of valve block 1, and first energy storage ware 8 is the metal tank body structure and the size equals with the shell of second energy storage ware 7, and first energy storage ware 8, second energy storage ware 7 are used for the buffer fluid pressurize.

A main control oil way 14 with the end part connected with a P1 oil port 10 is arranged in a valve block 1, a third check valve 9 is connected in the main control oil way 14, a first energy accumulator 8 is connected with the main control oil way 14 through a first check valve 2, a second energy accumulator 7 is connected with the main control oil way 14 through a second check valve 3, when the valve group is used for pressure maintaining, the first check valve 2 and the second check valve 3 are in a closed state, the first check valve 2 and the second check valve 3 are both positioned at the output end of the third check valve 9, a pressure relief oil way 15 is arranged in the valve block 1, a main overflow valve 4 is connected between the inner end of the main control oil way 14 and the pressure relief oil way 15, the communicating paths of oil in the scheme are ducts processed in the valve block 1, the set pressure of the main overflow valve 4 is greater than the set pressure of the differential overflow valve 5, the other end of the pressure relief oil way 15 is connected with a T11, an AC oil port 12 and an AB 13 are arranged on the valve block 1, the AC oil port 12 is communicated with the output end of the first check valve 2, the AB oil port 13 is communicated with the output end of the second check valve 3, and the AB oil port 13 and the AC oil port 12 are used as output working oil ports.

The valve block 1 is respectively provided with a differential overflow valve 5 and a logic valve 6, an oil inlet of the logic valve 6 is communicated with a main control oil path 14 in front of an input end of a third one-way valve 9, an oil drain port of the logic valve 6 is connected with a pressure relief oil path 15, a control port of the logic valve 6 is connected with an oil inlet of the differential overflow valve 5, a control port of the differential overflow valve 5 is connected with the main control oil path 14, an oil drain port of the differential overflow valve 5 is connected with the pressure relief oil path 15, and the logic valve 6 and the differential overflow valve 5 are opened for pressure relief in a pressure maintaining state, so that energy consumption is saved.

The working principle is as follows: when the equipment works, the main overflow valve 4 controls the main pressure of the valve bank, the first check valve 2 and the second check valve 3 respectively maintain the pressure of the first energy accumulator 8 and the second energy accumulator 7, so that the pressure of the P1 oil port 10 is finally maintained, when the first check valve 2 and the second check valve 3 are in pressure maintenance, the logic valve 6 and the differential overflow valve 5 are opened to release the pressure, the system pressure is zero, energy consumption is saved, when the pressure at the first check valve 2 and the second check valve 3 is reduced to 80% of the set pressure of the differential overflow valve 5, the logic valve 6 and the differential overflow valve 5 are closed, the system pressure is increased, oil is automatically supplied to the first energy accumulator 8 and the second energy accumulator 7, so that the pressure is maintained all the time, automatic switching can be realized, the energy consumption of the whole valve bank is greatly saved, and meanwhile, the loss of relevant elements caused by overhigh temperature of the valve bank is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pressure relief valves is filled to energy storage ware of high performance, includes valve block (1), the right side of valve block (1) is equipped with P1 hydraulic fluid port (10) and T hydraulic fluid port (11) respectively, first energy storage ware (8) and second energy storage ware (7), its characterized in that are installed respectively to the upper and lower both sides of valve block (1): a main control oil way (14) with the end part connected with the P1 oil port (10) is arranged in the valve block (1), a third one-way valve (9) is connected in the main control oil way (14), the first energy accumulator (8) is connected with the main control oil way (14) through a first one-way valve (2), the second energy accumulator (7) is connected with the main control oil way (14) through a second one-way valve (3), the first one-way valve (2) and the second one-way valve (3) are both positioned at the output end of the third one-way valve (9), a pressure relief oil way (15) is arranged in the valve block (1), the other end of the pressure relief oil way (15) is connected with the T oil port (11), an AC oil port (12) and an AB oil port (13) are arranged on the valve block (1), the AC oil port (12) is communicated with the output end of the first one-way valve (2), the AB oil port (13) is communicated with the output end of the second one-way valve (3);

install differential overflow valve (5) and logic valve (6) on valve block (1) respectively, the main control oil circuit (14) intercommunication before the oil inlet of logic valve (6) and third check valve (9) input, the draining port and the pressure release oil circuit (15) of logic valve (6) are connected, the control mouth and the oil inlet of differential overflow valve (5) of logic valve (6) are connected, the control mouth and the main control oil circuit (14) of differential overflow valve (5) are connected, the draining port and the pressure release oil circuit (15) of differential overflow valve (5) are connected.

2. The high performance accumulator charge and discharge valve pack according to claim 1, wherein: a main overflow valve (4) is connected between the inner end of the main control oil way (14) and the pressure relief oil way (15), and the set pressure of the main overflow valve (4) is greater than that of the differential overflow valve (5).

3. The high performance accumulator charge and discharge valve pack according to claim 1, wherein: and the shells of the first energy accumulator (8) and the second energy accumulator (7) are of metal tank structures and have the same size.