CN108317275B - Multifunctional leakage-free reversing loop - Google Patents
Multifunctional leakage-free reversing loop Download PDFInfo
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- CN108317275B CN108317275B CN201810192193.3A CN201810192193A CN108317275B CN 108317275 B CN108317275 B CN 108317275B CN 201810192193 A CN201810192193 A CN 201810192193A CN 108317275 B CN108317275 B CN 108317275B
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- port
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- valve
- electromagnetic
- electromagnetic reversing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a multifunctional non-leakage reversing loop which comprises an oil inlet P, an oil return port T, a working oil port A, a working oil port B, a control oil port X, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a third electromagnetic reversing valve, a fourth electromagnetic reversing valve, a fifth electromagnetic reversing valve and a sixth electromagnetic reversing valve, wherein at least one of the first electromagnetic reversing valve, the second electromagnetic reversing valve, the third electromagnetic reversing valve, the fourth electromagnetic reversing valve, the fifth electromagnetic reversing valve and the sixth electromagnetic reversing valve is powered off, so that two oil ports or three oil ports or four oil ports in the oil inlet P, the oil return port T, the working oil port A and the working oil port B are communicated. Through the mode, the leakage-free reversing loop can solve the problems that the cartridge valve is sealed and the oil port is leaked when the pilot pressure is low in a hydraulic system, and can realize various different types of working functions.
Description
Technical Field
The invention relates to the field of hydraulic systems, in particular to a multifunctional leakage-free reversing loop.
Background
The traditional electromagnetic reversing valve has at most three positions, corresponds to three functions, has few realization functions and can not meet all working conditions; in the traditional plug-in type reversing valve, the pilot oil path pressure is required to be calculated due to the area difference of the valve core, the pilot pressure is different in different using conditions, and when the pilot pressure is low, the plug-in type reversing valve has the condition of dead sealing.
Disclosure of Invention
The invention mainly solves the technical problem of providing a multifunctional non-leakage reversing loop, which can solve the problems that a cartridge valve is not sealed and an oil port is leaked when the pilot pressure is low in a hydraulic system, and can realize various different types of working functions.
In order to solve the technical problems, the invention adopts a technical scheme that: the multifunctional leakage-free reversing loop comprises an oil inlet P, an oil return port T, a working oil port A, a working oil port B, a control oil port X, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a third electromagnetic reversing valve, a fourth electromagnetic reversing valve, a fifth electromagnetic reversing valve and a sixth electromagnetic reversing valve, wherein the control oil port X is respectively communicated with the oil inlet P, the working oil port A and the working oil port B and controls an oil port with high pressure in the oil inlet P, the working oil port A and the working oil port B to supply oil to the first to sixth electromagnetic reversing valves, the working oil port A is connected with the first electromagnetic reversing valve, the second electromagnetic reversing valve and the sixth electromagnetic reversing valve, the working oil port B is connected with the fourth electromagnetic reversing valve, the second electromagnetic reversing valve, the third electromagnetic reversing valve and the fourth electromagnetic reversing valve, and at least one oil return port T is electrically communicated with the first electromagnetic reversing valve, the third electromagnetic reversing valve and the fifth electromagnetic reversing valve, and at least one oil outlet P is electrically communicated with the oil inlet P, the working oil port A and the fourth electromagnetic reversing valve or the oil port B.
In a preferred embodiment of the present invention, any one of the first to sixth electromagnetic directional valves is de-energized to enable two oil ports among the oil inlet P, the oil return port T, the working oil port a, and the working oil port B to be communicated.
In a preferred embodiment of the invention, the third electromagnetic directional valve is powered off, the rest electromagnetic directional valves are powered on, and the oil inlet P is communicated with the oil return port T; the second electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the oil inlet P is communicated with the working oil port A; the fourth electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the oil inlet P is communicated with the working oil port B; the sixth electromagnetic directional valve is powered off, other electromagnetic directional valves are powered on, and the working oil port A and the working oil port B are communicated; the fifth electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the working oil port B is communicated with the oil return port T; the first electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the working oil port A is communicated with the oil return port T.
In a preferred embodiment of the invention, the second electromagnetic directional valve and the fourth electromagnetic directional valve are powered off, the other electromagnetic directional valves are powered on, and the oil inlet P is communicated with the working oil port A and the working oil port B at the same time; the first electromagnetic reversing valve and the fifth electromagnetic reversing valve are powered off, the other electromagnetic reversing valves are powered on, and the oil return port T is communicated with the working oil port A and the working oil port B at the same time; the fourth electromagnetic reversing valve and the fifth electromagnetic reversing valve are powered off, other electromagnetic reversing valves are powered on, and an oil return port T is simultaneously communicated with a working oil port B and an oil inlet P; the first electromagnetic reversing valve and the second electromagnetic reversing valve are powered off, the other electromagnetic reversing valves are powered on, and the oil return port T is simultaneously communicated with the working oil port A and the oil inlet P.
In a preferred embodiment of the present invention, all of the first to sixth electromagnetic directional valves are powered off, and the oil inlet P, the working oil port, the oil return port T and the working oil port B are communicated with each other; the first to sixth electromagnetic directional valves are all powered on, and the oil inlet P, the working oil port, the oil return port T and the working oil port B are not communicated with each other.
In a preferred embodiment of the present invention, the second electromagnetic directional valve and the fifth electromagnetic directional valve are powered off, the other electromagnetic directional valves are powered on, the oil inlet P is communicated with the working oil port a, and the oil return port T is communicated with the working oil port B; the first electromagnetic reversing valve and the fourth electromagnetic reversing valve are powered off, the other electromagnetic reversing valves are powered on, the oil inlet P is communicated with the working oil port B, and the oil return port T is communicated with the working oil port A.
In a preferred embodiment of the present invention, the first to sixth electromagnetic directional valves are further in communication with the control oil drain port Y.
In a preferred embodiment of the present invention, the working oil port a is connected with an a-port check valve, the working oil port B is connected with a B-port check valve, the oil inlet P is connected with a P-port check valve, and the control oil port X is connected with an X-port check valve.
The beneficial effects of the invention are as follows: the multifunctional leakage-free reversing loop can solve the problems that when pilot pressure is low in a hydraulic system, a cartridge valve is sealed and an oil port is leaked, and can realize various different working functions.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of a preferred embodiment of a multi-functional leak-free reversing circuit of the present invention;
FIG. 2 is a functional schematic of the multi-functional leak-free commutation loop of FIG. 1;
the components in the drawings are marked as follows: 1. the oil-saving and oil-draining device comprises a first electromagnetic directional valve, a second electromagnetic directional valve, a third electromagnetic directional valve, a fourth electromagnetic directional valve, a fifth electromagnetic directional valve, a sixth electromagnetic directional valve, a port A one-way valve, a port B one-way valve, a port P one-way valve, an oil inlet P, an oil return port T, a working oil port A, a working oil port B, a control oil port X and a control oil drain port Y.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a multifunctional leakage-free reversing loop comprises an oil inlet P, an oil return port T, a working port a, a working port B, a control port X, a first electromagnetic reversing valve 1, a second electromagnetic reversing valve 2, a third electromagnetic reversing valve 3, a fourth electromagnetic reversing valve 4, a fifth electromagnetic reversing valve 5 and a sixth electromagnetic reversing valve 6, wherein the control port X is respectively communicated with the oil inlet P, the working port a and the working port B, and controls an oil port with high pressure in the oil inlet P, the working port a and the working port B to supply oil to the first to sixth electromagnetic reversing valves, the working port a is connected with the first electromagnetic reversing valve 1, the second electromagnetic reversing valve 2 and the sixth electromagnetic reversing valve 6, the working port B is connected with the fourth electromagnetic reversing valve 4, the fifth electromagnetic reversing valve 5 and the sixth electromagnetic reversing valve 6, the oil inlet P is connected with the second electromagnetic reversing valve 2, the third electromagnetic reversing valve 3 and the fourth electromagnetic reversing valve 4, and the oil return port T is communicated with the first electromagnetic reversing valve 1, the third electromagnetic reversing valve 3 and the fifth electromagnetic reversing valve 5, and the first to at least two oil inlets of the first to the sixth electromagnetic reversing valve a and the fourth electromagnetic reversing valve T are communicated with the oil inlet. When the electromagnetic directional valve is not electrified, the oil port of the electromagnetic directional valve is in a conducting state, when the electromagnetic directional valve is electrified, the oil port of the electromagnetic directional valve is disconnected, and control oil of the electromagnetic directional valve is controlled by the control oil port X to provide power through the oil port with higher pressure in the oil inlet P, the working oil port A and the working oil port B, so that the problems that when the pilot pressure is low in a hydraulic system, the cartridge valve is not sealed and the oil port leaks are solved.
The third electromagnetic directional valve 3 is powered off, the rest electromagnetic directional valves are powered on, the oil inlet P is communicated with the oil return port T, and the oil inlet P is not communicated with the working oil port A and the working oil port B.
The second electromagnetic directional valve 2 is powered off, other electromagnetic directional valves are powered on, the oil inlet P is communicated with the working oil port A, and the oil inlet P is not communicated with the oil return port T and the working oil port B.
The fourth electromagnetic directional valve 4 is powered off, other electromagnetic directional valves are powered on, the oil inlet P is communicated with the working oil port B, and the oil inlet P is not communicated with the oil return port T and the working oil port A.
The sixth electromagnetic directional valve 6 is powered off, other electromagnetic directional valves are powered on, the working oil port A and the working oil port B are communicated, and the working oil port T and the oil inlet P are not communicated with each other.
The fifth electromagnetic directional valve 5 is powered off, other electromagnetic directional valves are powered on, the working oil port B and the oil return port T are communicated, and the working oil port A and the oil inlet P are not communicated with each other;
the first electromagnetic directional valve 1 is powered off, the rest electromagnetic directional valves are powered on, the working oil port A and the oil return port T are communicated, and the working oil port B and the oil inlet P are not communicated with each other.
The second electromagnetic directional valve 2 and the fourth electromagnetic directional valve 4 are powered off, the other electromagnetic directional valves are powered on, and the oil inlet P is simultaneously communicated with the working oil port A and the working oil port B and is not communicated with the oil return port T.
The first electromagnetic directional valve 1 and the fifth electromagnetic directional valve 5 are powered off, the other electromagnetic directional valves are powered on, and the oil return port T is simultaneously communicated with the working oil port A and the working oil port B and is not communicated with the oil inlet P.
The fourth electromagnetic directional valve 4 and the fifth electromagnetic directional valve 5 are powered off, the other electromagnetic directional valves are powered on, and the oil return port T is simultaneously communicated with the working oil port B and the oil inlet P and is not communicated with the working oil port A.
The first electromagnetic directional valve 1 and the second electromagnetic directional valve 2 are powered off, the other electromagnetic directional valves are powered on, and the oil return port T is simultaneously communicated with the working oil port A and the oil inlet P and is not communicated with the working oil port B.
All the first to sixth electromagnetic directional valves are powered off, and the oil inlet P, the working oil port, the oil return port T and the working oil port B are communicated with each other.
The first to sixth electromagnetic directional valves are all powered on, and the oil inlet P, the working oil port A, the oil return port T and the working oil port B are not communicated with each other.
The second electromagnetic directional valve 2 and the fifth electromagnetic directional valve 5 are powered off, the other electromagnetic directional valves are powered on, the oil inlet P is communicated with the working oil port A, and the oil return port T is communicated with the working oil port B.
The first electromagnetic directional valve 1 and the fourth electromagnetic directional valve 4 are powered off, the other electromagnetic directional valves are powered on, the oil inlet P is communicated with the working oil port B, and the oil return port T is communicated with the working oil port A.
The leak-free commutation loop of the invention enables a working function of the type in total 14.
In addition, the first to sixth electromagnetic directional valves are also communicated with the control oil port X and the control oil drain port Y.
In addition, a port A one-way valve 7 is connected to the working oil port A, a port B one-way valve 8 is connected to the working oil port B, a port P one-way valve 9 is connected to the oil inlet P, and a port X one-way valve 10 is connected to the control oil port X.
Compared with the prior art, the multifunctional leakage-free reversing loop can solve the problems that the cartridge valve is not sealed and the oil port is leaked when the pilot pressure is low in a hydraulic system, and can realize various different types of working functions.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (6)
1. The multifunctional leakage-free reversing loop is characterized by comprising an oil inlet P, an oil return port T, a working oil port A, a working oil port B, a control oil port X, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a third electromagnetic reversing valve, a fourth electromagnetic reversing valve, a fifth electromagnetic reversing valve and a sixth electromagnetic reversing valve;
the six electromagnetic reversing valves have the same structure and are composed of two-position three-way pilot electromagnetic valves and two-way cartridge valves, wherein each two-position three-way pilot electromagnetic valve comprises a P port, a T port and an A port, each two-way cartridge valve comprises a control port, an A working port and a B working port, the P ports of the six two-position three-way pilot electromagnetic valves are connected with a control oil port X, T, the P ports of the six two-position three-way pilot electromagnetic valves are connected with a control oil drain port Y, and the A port of each two-position three-way pilot electromagnetic valve is connected with the control port of the corresponding two-way cartridge valve;
the control oil port X is respectively communicated with the oil inlet P, the working oil port A and the working oil port B, and controls the high-pressure oil ports in the oil inlet P, the working oil port A and the working oil port B to supply oil to the P ports of the two-position three-way pilot electromagnetic valves of the first electromagnetic reversing valve to the sixth electromagnetic reversing valve; the oil inlet P is connected with an opening A of a two-way cartridge valve of the second electromagnetic directional valve, an opening A of a two-way cartridge valve of the third electromagnetic directional valve and an opening A of a two-way cartridge valve of the fourth electromagnetic directional valve, an opening B of a two-way cartridge valve of the third electromagnetic directional valve and an opening B of a two-way cartridge valve of the fifth electromagnetic directional valve, and an oil return opening T is connected with an opening B of a two-way cartridge valve of the first electromagnetic directional valve, an opening B of a two-way cartridge valve of the third electromagnetic directional valve and an opening B of a two-way cartridge valve of the fifth electromagnetic directional valve;
at least one of the first to sixth electromagnetic directional valves is powered off to enable two oil ports of the oil inlet P, the oil return port T, the working oil port A and the working oil port B to be communicated or three oil ports to be communicated or four oil ports to be communicated, and any one of the first to sixth electromagnetic directional valves is powered off to enable two oil ports of the oil inlet P, the oil return port T, the working oil port A and the working oil port B to be communicated.
2. The multifunctional leakage-free reversing loop according to claim 1, wherein the third electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the oil inlet P is communicated with the oil return port T; the second electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the oil inlet P is communicated with the working oil port A; the fourth electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the oil inlet P is communicated with the working oil port B; the sixth electromagnetic directional valve is powered off, other electromagnetic directional valves are powered on, and the working oil port A and the working oil port B are communicated; the fifth electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the working oil port B is communicated with the oil return port T; the first electromagnetic reversing valve is powered off, the rest electromagnetic reversing valves are powered on, and the working oil port A is communicated with the oil return port T.
3. The multifunctional leakage-free reversing loop according to claim 1, wherein the second electromagnetic reversing valve and the fourth electromagnetic reversing valve are powered off, the rest electromagnetic reversing valves are powered on, and the oil inlet P is communicated with the working oil port A and the working oil port B at the same time; the first electromagnetic reversing valve and the fifth electromagnetic reversing valve are powered off, the other electromagnetic reversing valves are powered on, and the oil return port T is communicated with the working oil port A and the working oil port B at the same time; the fourth electromagnetic reversing valve and the fifth electromagnetic reversing valve are powered off, other electromagnetic reversing valves are powered on, and an oil return port T is simultaneously communicated with a working oil port B and an oil inlet P; the first electromagnetic reversing valve and the second electromagnetic reversing valve are powered off, the other electromagnetic reversing valves are powered on, and the oil return port T is simultaneously communicated with the working oil port A and the oil inlet P.
4. The multi-functional leak-free reversing circuit of claim 1, wherein all of the first to sixth electromagnetic reversing valves are de-energized, and the oil inlet P, the working oil port a, the oil return port T and the working oil port B are communicated with each other; the first electromagnetic reversing valve, the second electromagnetic reversing valve, the third electromagnetic reversing valve, the fourth electromagnetic reversing valve, the fifth electromagnetic reversing valve, the sixth electromagnetic reversing valve, the oil inlet P, the working oil port A, the oil return port T and the working oil port B are not communicated with each other.
5. The multifunctional leakage-free reversing loop according to claim 1, wherein the second electromagnetic reversing valve and the fifth electromagnetic reversing valve are powered off, the other electromagnetic reversing valves are powered on, the oil inlet P is communicated with the working oil port A, and the oil return port T is communicated with the working oil port B; the first electromagnetic reversing valve and the fourth electromagnetic reversing valve are powered off, the other electromagnetic reversing valves are powered on, the oil inlet P is communicated with the working oil port B, and the oil return port T is communicated with the working oil port A.
6. The multi-functional no leakage reversing circuit according to any one of claims 1 to 5, wherein an a-port check valve is connected to the working oil port a, a B-port check valve is connected to the working oil port B, a P-port check valve is connected to the oil inlet P, and an X-port check valve is connected to the control oil port X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810192193.3A CN108317275B (en) | 2018-03-09 | 2018-03-09 | Multifunctional leakage-free reversing loop |
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| CN201810192193.3A CN108317275B (en) | 2018-03-09 | 2018-03-09 | Multifunctional leakage-free reversing loop |
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| CN108317275A CN108317275A (en) | 2018-07-24 |
| CN108317275B true CN108317275B (en) | 2023-06-06 |
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