CN116464683A - High-response deep sea pressure self-adaptive water pressure reversing valve - Google Patents

High-response deep sea pressure self-adaptive water pressure reversing valve Download PDF

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Publication number
CN116464683A
CN116464683A CN202310389023.5A CN202310389023A CN116464683A CN 116464683 A CN116464683 A CN 116464683A CN 202310389023 A CN202310389023 A CN 202310389023A CN 116464683 A CN116464683 A CN 116464683A
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CN
China
Prior art keywords
valve
armature
coil
hole
deep sea
Prior art date
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Pending
Application number
CN202310389023.5A
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Chinese (zh)
Inventor
吴德发
王成龙
孟令康
杨幸
王振耀
王于健
蒋济泽
李江雄
王伟灿
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Application filed by Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN202310389023.5A priority Critical patent/CN116464683A/en
Publication of CN116464683A publication Critical patent/CN116464683A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

The invention belongs to the technical field related to control valves, and discloses a high-response deep sea pressure self-adaptive water pressure reversing valve, which comprises a valve block, a pagoda joint and a high-speed switching valve inserted in the valve block, wherein the high-speed switching valve comprises an electromagnetic driving assembly, and a coil is arranged in the electromagnetic driving assembly; the pagoda joint is connected with the electromagnetic driving assembly and is communicated with the coil; hydraulic oil is injected into the coil through the pagoda joint; during operation, the pressure of the hydraulic oil is self-adaptive to the external pressure, so that the pressure inside the coil is balanced with the external pressure, and the reversing valve is adaptive to different sea depths. The invention realizes the self-compensating balance of pressure.

Description

High-response deep sea pressure self-adaptive water pressure reversing valve
Technical Field
The invention belongs to the technical field of control valves, and particularly relates to a high-response deep sea pressure self-adaptive water pressure reversing valve.
Background
The open ocean accounting for 70% of the earth area is a resource treasury for human survival and development, and along with the development of technology and the continuous promotion of ocean strategic status, exploration of the ocean has become an increasingly important strategic goal. The water hydraulic transmission technology is used as a main technical method for exploring the underwater field, and has the advantages of environmental protection, safety, reliability, large power-to-mass ratio and the like. The variety and specification of the hydraulic element are gradually perfected, and the application prospect is very broad.
High speed switching valves are important control elements in modern digital hydraulic systems. As an electrohydraulic conversion element, the electrohydraulic conversion element has the advantages of compact structure, convenient control, strong pollution resistance, high response speed and the like. The high-speed switch valve directly utilizes pulse signals to control the opening and closing of the valve port, and generates high-frequency discrete fluid through rapid opening and closing movement, so that the accurate control of different flows is realized, and the high-speed switch valve is one of important research directions of modern digital hydraulic technology.
The control element commonly used in the current hydraulic system is generally a servo valve, but the servo valve has high processing difficulty and poor pollution resistance. The common three-position four-way reversing valve is an oil pressure type slide valve, has low working pressure, is easy to leak and has low response speed, and can not meet the requirements of deep sea working conditions. Therefore, how to overcome the defects and develop a water pressure reversing valve which has good sealing performance and can adapt to the deep sea high pressure environment is an important problem to be solved by deep sea water pressure transmission.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a high-response deep sea pressure self-adaptive water pressure reversing valve, which realizes the reversing control function of a hydraulic system in the full sea depth range by adopting a pressure self-compensating balance mode.
In order to achieve the above object, according to one aspect of the present invention, there is provided a high-response deep sea pressure adaptive water pressure reversing valve, the reversing valve including a valve block, a pagoda joint, and a high-speed switching valve inserted into the valve block, the high-speed switching valve including an electromagnetic driving assembly having a coil disposed therein; the pagoda joint is connected with the electromagnetic driving assembly and is communicated with the coil;
hydraulic oil is injected into the coil through the pagoda joint; during operation, the pressure of the hydraulic oil is self-adaptive to the external pressure, so that the pressure inside the coil is balanced with the external pressure, and the reversing valve is adaptive to different sea depths.
Further, the reversing valve comprises a gland connected to the opening end of the valve block, the valve block is provided with a second mounting hole, and the high-speed switch valve is arranged in the second mounting hole; the pagoda joint is arranged on the pressing cover; the electromagnetic driving assembly comprises an electromagnet shell, an electromagnet lower end cover and a coil framework, and the coil is sleeved on the coil framework; the electromagnet lower end cover is connected to one end of the electromagnet shell; the pagoda joint is communicated with the coil through a hole formed in the electromagnet shell.
Further, the electromagnetic driving assembly further comprises a pole shoe, a reset spring and an armature, wherein the pole shoe is arranged in the coil framework, one end of the pole shoe is connected with the electromagnet shell, and the other end of the pole shoe is connected with the armature through the reset spring; the two ends of the armature are arranged in the coil framework and the electromagnet lower end cover, and the armature and the pole shoe are arranged at intervals.
Further, a maximum working air gap between the pole piece and the armature is set to 0.43mm; by energizing the coil to generate an electromagnetic field, the electromagnetic field generates an upward electromagnetic driving force on the armature to move the armature toward the pole piece, which in turn causes the high-speed switching valve to open.
Further, the electromagnetic driving assembly comprises a first guide sleeve, a magnetism isolating sleeve and a second guide sleeve, wherein the first guide sleeve, the magnetism isolating sleeve and the second guide sleeve are sequentially connected together to form a ring body, one end of the ring body is sleeved on the pole shoe, and the other end of the ring body is sleeved on the armature; the electromagnetic drive assembly further includes a limit tab connected to an end of the pole piece adjacent the armature.
Further, the high-speed switching valve further comprises a valve body valve core assembly, the armature is communicated with the valve body valve core assembly, and when the high-speed switching valve is opened, fluid enters the armature from the valve body valve core through the electromagnet lower end cover and enters between the armature and the pole shoe through the armature, so that the armature is immersed in the fluid.
Further, the valve block is provided with an inlet and an outlet; the valve body and valve core assembly comprises a valve body, a valve seat, a ball valve and a push rod, wherein the valve seat is arranged in the valve body, one end of the push rod penetrates through the valve body and then is connected with the armature, and the other end of the push rod is connected with the ball valve; the valve seat is provided with a valve hole, and the ball valve is detachably connected with the valve hole; the valve hole is communicated with the inlet; the valve body is also provided with a high-speed switch valve outlet which is communicated with the outlet and the armature.
Further, connection and separation of the ball valve and the valve hole are realized through on-off of the coil and the return spring; the electromagnetic field acts on the armature, so that the armature drives the push rod to move towards the pole shoe, the push rod drives the ball valve to move towards the pole shoe, the ball valve is separated from the valve hole, and the high-speed switch valve is opened; when the coil is powered off, the armature moves reversely under the action of the reset spring, so that the ball valve seals the valve hole, and the high-speed switch valve is closed.
Further, the armature is cylindrical, and a first mounting hole is formed in one end of the armature; one end of the push rod is connected with the armature through the first mounting hole; the periphery of the armature is also provided with a plurality of arc grooves which are arranged along the axial direction of the armature, the bottom surface of the arc grooves is provided with radial holes which are arranged radially, and the radial holes are communicated with the first mounting holes; the arc-shaped groove is communicated with the outlet of the high-speed switch valve.
In general, compared with the prior art, the high-response deep sea pressure self-adaptive water pressure reversing valve provided by the invention has the following main beneficial effects:
1. by injecting hydraulic oil into the coil, the internal pressure and the external pressure of the coil are balanced when the hydraulic oil is used, so that the high-speed pump Guan Guanfa can adapt to working conditions under different sea depths, and the pressure self-compensation balance is realized.
2. In order to solve the problems of easy leakage and low response of the deep sea water pressure valve, the valve hole is opened and closed by adopting a ball valve structure, and meanwhile, the valve is provided with bidirectional sealing and good sealing performance by adopting a reset spring, so that the response speed during reset is greatly improved.
3. The magnetic conduction piece is designed into a wet electromagnet structure, a sealing ring between the electromagnet and the ball valve is omitted, so that the armature is directly soaked in high-pressure water, and the influence caused by nonlinear friction force of the sealing ring during movement is avoided.
4. In order to solve the problem of corrosion and abrasion of the electromagnetic motion assembly and the valve core assembly of the valve body caused by the self corrosiveness of natural seawater, the magnetic conduction assembly such as a pole shoe, an armature and the like adopts the stainless soft magnetic alloy 1J117, has the advantages of high magnetic permeability, high saturation induction intensity, low coercivity and the like, has strong corrosion resistance, can meet the use requirement of the high-pressure working condition with the seawater as a working medium, and has high response speed of the valve.
5. According to the invention, the three-position four-way reversing valve is formed by four two-position two-way high-speed switch valves, so that independent control between load ports can be realized, and control and adjustment are convenient; the hydraulic reversing valve is designed to be of an inserting structure, and has the advantages of good sealing performance, convenience in installation and maintenance and the like.
Drawings
FIG. 1 is a schematic diagram of a high-response deep sea pressure self-adaptive water pressure reversing valve provided by the invention;
FIG. 2 is a schematic view of the high response deep sea pressure adaptive hydraulic reversing valve of FIG. 1 taken at an angle;
FIG. 3 is a schematic view of the high response deep sea pressure adaptive hydraulic reversing valve of FIG. 1 taken at another angle;
FIG. 4 is a schematic illustration of the structure of an armature of the deep sea adaptive hydraulic reversing valve of FIG. 1;
fig. 5 is a schematic diagram of a hydraulic system provided by the present invention.
The same reference numbers are used throughout the drawings to reference like elements or structures, wherein: 1-valve block, 2-first mounting screw, 3-lower end cover, 4-valve seat, 5-ball valve, 6-valve body, 7-plug, 8-guide sleeve, 9-second mounting screw, 10-push rod, 11-armature, 12-first guide sleeve, 13-magnetism isolating sleeve, 14-limit piece, 15-second guide sleeve, 16-return spring, 17-pole shoe, 18-third mounting screw, 19-coil, 20-coil bobbin, 21-pagoda joint, 22-electromagnet shell, 23-gland, 24-watertight plug mounting plate, 25-lead out hole, 26-fourth mounting screw, 27-electromagnet lower end cover, 28-first combined sealing ring, 29-second combined sealing ring, 30-third combined sealing ring, 31-fourth combined sealing ring, 32-fifth combined sealing ring, 33-sixth combined sealing ring, 34-seventh combined sealing ring, 35-third group high-speed switching valve outlet, 36-first runner, 37-fourth group high-speed switching valve outlet, 38-watertight plug, 39-first group high-speed switching valve outlet, 40-second runner, 40-second high-speed switching valve, 41-radial slot, and arc-shaped groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The invention provides a high-response deep sea pressure self-adaptive water pressure reversing valve which is suitable for being used in a deep sea high-pressure environment, has the advantages of double sealing, good sealing performance, strong anti-pollution capability, high response speed, capability of realizing automatic pressure compensation and the like, solves the problems of high processing difficulty and easy leakage of the traditional servo slide valve in the deep sea high-pressure environment, and can realize the reversing control function of a hydraulic system in any deep sea area.
Referring to fig. 1, the reversing valve includes a valve block 1, a gland 23, a plurality of high-speed switch valves, and a water-tight connector 38, wherein the gland 23 is connected to one end of the valve block 1, and the water-tight connector 38 is disposed on the gland 23 and is respectively connected to the plurality of high-speed switch valves. The high-speed switching valves are respectively inserted into the valve block 1. In this embodiment, the number of the high-speed switching valves is four.
Referring to fig. 2 and 3, the gland 23 is connected to the open end of the valve block 1 by a third mounting screw 18, and a third groove is formed at an end of the gland facing the valve block 1, and the third groove is used for accommodating a part of the high-speed switching valve. Four pagoda joints 21 are further arranged on the gland 23, the four pagoda joints 21 are uniformly distributed around the central shaft of the gland 23, and the pagoda joints 21 are communicated with the third groove. The other end of the gland 23 is also provided with a wire leading-out hole 25, and the wire leading-out hole 25 is communicated with the third groove for the wire of the high-speed switch valve to pass through.
Four first grooves are formed in one end, facing the gland 23, of the valve block 1, and the four first grooves are uniformly distributed. The bottom of the first groove is provided with a second groove, and the bottom of the second groove is provided with a first accommodating hole. The valve block 1 is further provided with four first stepped holes which are radially arranged, the four first stepped holes are respectively communicated with the bottoms of the four second grooves, and the four plugs 7 are respectively arranged in the four first stepped holes. The valve block 1 is further provided with a first flow passage 36, a second flow passage 40 and an outlet, and the first flow passage 36 and the second flow passage 40 intersect and are arranged in a cross shape. The outlet is disposed along the axial direction of the valve block 1, and one end thereof is located at the intersection of the first flow passage 36 and the second flow passage 40, so that the first flow passage 36, the second flow passage 40 and the outlet are communicated. The two ends of the first flow channel 36 are respectively communicated with two second grooves, and the two ends of the second flow channel 40 are respectively communicated with the other two second grooves. The valve block 1 is further provided with an inlet, and the inlet is communicated with the first accommodating hole.
In this embodiment, the corresponding first groove, second groove, and first receiving Kong Zucheng second mounting hole are respectively used for receiving four height switch valves.
The high-speed switch valve comprises an electromagnetic driving assembly and a valve element assembly of a valve body 6 which are connected, wherein the valve element assembly of the valve body 6 comprises a valve body 6, a valve seat 4, a lower end cover 3, a first mounting screw 2, a ball valve, a guide sleeve 8 and a push rod 10.
The lower end cover 3 is disposed in the first accommodating hole, and is connected to the valve body 6 through a first mounting screw 2, and the valve seat 4 is disposed in the valve body 6. The lower end cover 3 is provided with a communication hole. The valve body 6 is in a step shape, one end of the valve body is arranged in the first groove, and the other end of the valve body penetrates through the second groove and then stretches into the first accommodating hole to be connected with the lower end cover 3. The two opposite ends of the valve body 6 are respectively provided with a stepped groove and a seventh groove, the bottom surface of the seventh groove is provided with a fourth through hole, and the fourth through hole penetrates through the bottom surface of the stepped groove. The valve seat 4 is arranged in the seventh groove and the fourth through hole, and one side of the stepped groove is communicated with the first stepped hole.
The four high-speed switching valves are respectively called a first group of high-speed switching valves 39, a second group of high-speed switching valves 41, a third group of high-speed switching valves and a fourth group of high-speed switching valves, the four valve bodies 6 are respectively correspondingly provided with a first group of high-speed switching valve outlet, a second group of high-speed switching valve outlet, a third group of high-speed switching valve outlet 35 and a fourth group of high-speed switching valve outlet 37, and the corresponding high-speed switching valve outlets are communicated with the stepped groove.
The valve seat 4 is provided with a valve hole, and the valve hole is communicated with the stepped groove. The central axis of the valve hole coincides with the central axis of the communication hole, and the central axis of the valve hole is communicated with the central axis of the communication hole. Wherein, fluid passes through the communication hole and the valve hole in turn and enters the high-speed switch valve. A sixth combined sealing ring 33 is arranged between the valve body 6 and the first accommodating hole, and a fifth combined sealing ring 32 is arranged between the valve body 6 and the second groove. A seventh combined sealing ring 34 is arranged between the valve seat 4 and the valve body 6. A fourth combined sealing ring 31 is embedded in one end of the valve body 6, which is positioned in the first groove.
The guide sleeve 8 is disposed in the stepped groove, and abuts against the stepped surface of the stepped groove and is disposed adjacent to the fourth combined seal ring 31. The guide sleeve 8 is provided with a third through hole and a plurality of second through holes, and the second through holes are communicated with the stepped groove. The third through hole is used for the push rod 10 to pass through. In this embodiment, the central axis of the third through hole coincides with the central axis of the guide sleeve 8, and the plurality of second through holes are uniformly distributed around the third through hole. One end of the push rod 10 is connected to the ball valve, and the other end of the push rod passes through the third through hole and then is connected to the electromagnetic driving assembly. The ball valve is detachably connected with the valve hole.
The electromagnetic driving assembly comprises an armature 11, a first guide sleeve 12, a magnetism isolating sleeve 13, a limiting piece 14, a second guide sleeve 15, a return spring 16, a pole shoe 17, a coil 19, a coil framework 20, an electromagnet shell 22 and an electromagnet lower end cover 27. One end of the electromagnet housing 22 is received in the third groove, and the other end is received in the first groove. One end of the first groove is connected with the electromagnet lower end cover 27, and the electromagnet lower end cover 27 is connected with the valve body 6 through the second mounting screw 9. The electromagnet housing 22 is formed with a fourth groove, and a bottom surface of the fourth groove is formed with a first protrusion. The coil bobbin 20 is disposed in the fourth groove, and is formed with a first annular groove and a second receiving hole, a central axis of the second receiving hole coincides with a central axis of the coil bobbin 20, and the first annular groove is formed on an outer circumference of the coil bobbin 20. The coil 19 is disposed in the first annular groove and is spaced from the wall of the fourth groove. The gap between the coil 19 and the fourth groove is communicated with the corresponding pagoda joint 21.
The pole shoe 17 is in a ladder shape, a fifth groove is formed in the large end of the pole shoe, and a second annular groove is formed in the small end of the pole shoe. The pole shoe 17 is arranged in the second accommodating hole, and the first protrusion is arranged in the fifth groove. The electromagnet lower end cover 27 has a stepped shape, and one end thereof is accommodated in the fourth groove and contacts the bobbin 20. A sixth groove is formed in one end of the electromagnet lower end cover 27 accommodated in the fourth groove, and a first through hole is formed in the other end of the electromagnet lower end cover. The first through hole is communicated with the second through hole and the third through hole.
The first guide sleeve 12, the magnetism isolating sleeve 13 and the second guide sleeve 15 are sequentially connected together to form a ring body, one end of the ring body is sleeved on the small end of the pole shoe 17, and the other end of the ring body is arranged in the sixth groove. The limit piece 14 is arranged on the end of the pole piece 17 adjacent to the armature 11.
Referring to fig. 4, the armature 11 is cylindrical, and a third annular groove and a first mounting hole are respectively formed at two opposite ends of the armature. The armature 11 is located within the ring body, spaced from the pole piece 17. The return spring 16 is disposed in the second annular groove and the third annular groove, and two ends of the return spring are respectively connected to the bottom surface of the second annular groove and the bottom surface of the third annular groove. One end of the pushrod 10 is connected to the armature 11 through the first mounting hole. The periphery of the armature 11 is also provided with a plurality of arc grooves 43 which are arranged along the axial direction of the armature 11, the bottom surface of the arc grooves 43 is provided with radial holes 42 which are arranged radially, and the radial holes 42 are communicated with the first mounting holes. The arc-shaped groove 43 communicates with the first through hole.
A third combined sealing ring 30 is arranged between the electromagnet lower end cover 27 and the first guide sleeve 12, and a first combined sealing ring 28 is arranged between the electromagnet housing 22 and the electromagnet lower end cover 27; a second combined sealing ring 29 is arranged between the pole shoe 17 and the second guide sleeve 15. The watertight connector is connected to the gland 23 through a watertight connector mounting plate 24, and the watertight connector mounting plate 24 is connected to the gland 23 through a fourth mounting screw 26. Wherein the watertight connector communicates with the wire extraction aperture 25.
In this embodiment, the armature 11 is attracted to the pole piece 17 when the coil 19 is energized; the limiting piece 14 plays a role in limiting movement, and the coil 19 and the outside are in soft sealing through a first combined sealing ring 28, a second combined sealing ring 29 and a third combined sealing ring 30; the connection or disconnection between the ball valve and the valve hole is realized by the on-off of the coil 19, so that the opening and closing of the valve hole are realized; the valve hole is sealed from the outside by a sixth combined seal ring 33 and a seventh combined seal ring 34.
The pagoda joint 21 is used for communicating the outside with the inside of the coil 19, hydraulic oil is injected into the fourth groove through the pagoda joint 21, and external components (such as a pipe or a pressure compensation piece) connected with the pagoda joint 21 can transmit external pressure to the hydraulic oil, so that balance between the internal pressure and the external pressure of the coil 19 is realized, and the high-speed switch valve can adapt to working conditions under different sea depth pressures.
The arc-shaped groove 43 introduces water flow between the armature 11 and the pole piece 17 so that the armature is completely immersed in water, and the radial hole 42 introduces water flow above the push rod 10 so that pressures on the upper and lower sides of the push rod 10 are balanced.
In this embodiment, the wires of each group of high-speed switching valves are collected through the wire drawing holes 25 and then drawn out through the watertight connector 38; the ball valve and the valve seat 4 form linear seal, and a combined sealing ring arranged in a valve core assembly of the valve body 6 can isolate high-pressure water and low-pressure water; the magnetic conduction component such as the pole shoe 17, the armature and the like adopts the stainless soft magnetic alloy 1J117.
The maximum working air gap between the pole shoe 17 and the armature is set to be 0.43mm, the armature stroke is set to be 0.33mm, when the high-speed switch valve works, the valve hole of the high-speed switch valve is opened, high-pressure water enters the armature through the valve hole and the guide sleeve 8, the armature is completely soaked in water, and nonlinear friction force caused by the sealing ring is avoided. Wherein the return spring 16 is used for guaranteeing the complete closing of the valve hole of the high-speed switching valve under the action of the compression force.
When the electromagnetic driving assembly is in operation, when the coil 19 in the electromagnetic driving assembly is electrified, an electromagnetic field is generated, the armature, the pole shoe 17, the electromagnet shell 22 and the electromagnet lower end cover 27 form a closed magnetic flux loop, an upward electromagnetic driving force is generated for the armature under the action of the electromagnetic field, the downward spring force of the return spring 16 is overcome, the armature drives the ball valve to move upwards, the valve hole of the high-speed switching valve is opened, and the first guide sleeve 12, the second guide sleeve 15 and the magnetism isolating sleeve 13 play a role in increasing the electromagnetic force. When the coil 19 is powered off, the electromagnetic force acting on the armature disappears, and under the action of the restoring force of the restoring spring 16, the armature drives the ball valve to move downwards, and the valve hole of the high-speed switch valve is closed. The high-speed switch valve receives the PWM control signal, converts a discrete switch signal into a continuous flow signal, and plays a role in regulating flow by changing the frequency and the duty ratio of the control signal. The three-position four-way reversing valve is realized by changing the power-on sequence of the four groups of high-speed switching valves.
The invention also provides a hydraulic system which comprises a piston cylinder and the high-response deep sea pressure self-adaptive water pressure reversing valve, wherein the reversing valve is connected with the piston cylinder. When the reversing valve works, the reversing function is completed by controlling the power-on sequence of the high-speed switch valves, so that the high-precision control of the piston cylinder is realized.
In this embodiment, referring to fig. 5, four high-speed switch valves in the hydraulic system are respectively referred to as a valve A1, a valve A2, a valve B1, and a valve B2; the inlet of the valve A1 and the inlet of the valve B1 are connected with the outlet of the pump P, the outlet of the valve A2 and the outlet of the valve B2 are connected with an oil tank, and the outlet of the valve A1 and the inlet of the valve A2 are respectively connected with an A load port of the piston cylinder; the outlet of the valve B1 and the inlet of the valve B2 are respectively connected with the B load port of the piston cylinder.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (9)

1. A high response deep sea pressure self-adaptation water pressure switching-over valve, its characterized in that:
the reversing valve comprises a valve block, a pagoda joint and a high-speed switching valve inserted in the valve block, wherein the high-speed switching valve comprises an electromagnetic driving assembly, and a coil is arranged in the electromagnetic driving assembly; the pagoda joint is connected with the electromagnetic driving assembly and is communicated with the coil;
hydraulic oil is injected into the coil through the pagoda joint; during operation, the pressure of the hydraulic oil is self-adaptive to the external pressure, so that the pressure inside the coil is balanced with the external pressure, and the reversing valve is adaptive to different sea depths.
2. The high response deep sea pressure adaptive hydraulic reversing valve of claim 1, wherein: the reversing valve comprises a gland connected to the opening end of the valve block, the valve block is provided with a second mounting hole, and the high-speed switching valve is arranged in the second mounting hole; the pagoda joint is arranged on the pressing cover; the electromagnetic driving assembly comprises an electromagnet shell, an electromagnet lower end cover and a coil framework, and the coil is sleeved on the coil framework; the electromagnet lower end cover is connected to one end of the electromagnet shell; the pagoda joint is communicated with the coil through a hole formed in the electromagnet shell.
3. The high response deep sea pressure adaptive hydraulic reversing valve of claim 2, wherein: the electromagnetic driving assembly further comprises a pole shoe, a reset spring and an armature, wherein the pole shoe is arranged in the coil framework, one end of the pole shoe is connected with the electromagnet shell, and the other end of the pole shoe is connected with the armature through the reset spring; the two ends of the armature are arranged in the coil framework and the electromagnet lower end cover, and the armature and the pole shoe are arranged at intervals.
4. A high response deep sea pressure adaptive hydraulic reversing valve according to claim 3, wherein: the maximum working air gap between the pole shoe and the armature is set to be 0.43mm; by energizing the coil to generate an electromagnetic field, the electromagnetic field generates an upward electromagnetic driving force on the armature to move the armature toward the pole piece, which in turn causes the high-speed switching valve to open.
5. A high response deep sea pressure adaptive hydraulic reversing valve according to claim 3, wherein: the electromagnetic driving assembly comprises a first guide sleeve, a magnetism isolating sleeve and a second guide sleeve, wherein the first guide sleeve, the magnetism isolating sleeve and the second guide sleeve are sequentially connected together to form a ring body, one end of the ring body is sleeved on the pole shoe, and the other end of the ring body is sleeved on the armature; the electromagnetic drive assembly further includes a limit tab connected to an end of the pole piece adjacent the armature.
6. A high response deep sea pressure adaptive hydraulic reversing valve according to claim 3, wherein: the high-speed switching valve further comprises a valve body valve core assembly, the armature is communicated with the valve body valve core assembly, and when the high-speed switching valve is opened, fluid enters the armature from the valve body valve core through the electromagnet lower end cover and enters between the armature and the pole shoe through the armature, so that the armature is immersed in the fluid.
7. The high response deep sea pressure adaptive hydraulic reversing valve of claim 6, wherein: the valve block is provided with an inlet and an outlet; the valve body and valve core assembly comprises a valve body, a valve seat, a ball valve and a push rod, wherein the valve seat is arranged in the valve body, one end of the push rod penetrates through the valve body and then is connected with the armature, and the other end of the push rod is connected with the ball valve; the valve seat is provided with a valve hole, and the ball valve is detachably connected with the valve hole; the valve hole is communicated with the inlet; the valve body is also provided with a high-speed switch valve outlet which is communicated with the outlet and the armature.
8. The high response deep sea pressure adaptive hydraulic reversing valve of claim 7, wherein: the connection and the separation of the ball valve and the valve hole are realized through the on-off of the coil and the reset spring; the electromagnetic field acts on the armature, so that the armature drives the push rod to move towards the pole shoe, the push rod drives the ball valve to move towards the pole shoe, the ball valve is separated from the valve hole, and the high-speed switch valve is opened; when the coil is powered off, the armature moves reversely under the action of the reset spring, so that the ball valve seals the valve hole, and the high-speed switch valve is closed.
9. The high response deep sea pressure adaptive hydraulic reversing valve of claim 7, wherein: the armature is cylindrical, and a first mounting hole is formed in one end of the armature; one end of the push rod is connected with the armature through the first mounting hole; the periphery of the armature is also provided with a plurality of arc grooves which are arranged along the axial direction of the armature, the bottom surface of the arc grooves is provided with radial holes which are arranged radially, and the radial holes are communicated with the first mounting holes; the arc-shaped groove is communicated with the outlet of the high-speed switch valve.
CN202310389023.5A 2023-04-13 2023-04-13 High-response deep sea pressure self-adaptive water pressure reversing valve Pending CN116464683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310389023.5A CN116464683A (en) 2023-04-13 2023-04-13 High-response deep sea pressure self-adaptive water pressure reversing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310389023.5A CN116464683A (en) 2023-04-13 2023-04-13 High-response deep sea pressure self-adaptive water pressure reversing valve

Publications (1)

Publication Number Publication Date
CN116464683A true CN116464683A (en) 2023-07-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310389023.5A Pending CN116464683A (en) 2023-04-13 2023-04-13 High-response deep sea pressure self-adaptive water pressure reversing valve

Country Status (1)

Country Link
CN (1) CN116464683A (en)

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