CN116265792A - Electrohydraulic quick-break valve - Google Patents
Electrohydraulic quick-break valve Download PDFInfo
- Publication number
- CN116265792A CN116265792A CN202111540814.0A CN202111540814A CN116265792A CN 116265792 A CN116265792 A CN 116265792A CN 202111540814 A CN202111540814 A CN 202111540814A CN 116265792 A CN116265792 A CN 116265792A
- Authority
- CN
- China
- Prior art keywords
- valve core
- core
- main valve
- taper hole
- taper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- 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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
-
- 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
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
- F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
An electrohydraulic quick-break valve comprises an armature, a coil, a control valve core, a valve body, a main valve core, a small spring, a large spring, a taper hole seat, an oil return tank, a gland, a lock nut and a taper core. An inner taper hole is arranged at the left end of the main valve core, a ring groove is arranged on an outer column of the main valve core, and a small hole communicated with the ring groove is drilled on the right end face of the main valve core. The outer column in the middle of the control valve core is provided with through grooves symmetrically along the axial direction, and the left end in the middle of the control valve core is provided with a cone which is matched with the inner cone hole of the main valve core. The center of the taper hole seat is provided with a taper hole matched with a taper core, and the taper core is assembled on a stepped shaft at the left part of the control valve core and is fixed by a locking nut. When the oil way needs to be cut off promptly, the main valve core is driven by the hydraulic force and the electromagnetic force together, and the cutting speed is relatively fast.
Description
Technical Field
The invention relates to an electrohydraulic quick-break valve.
Background
The electromagnetic force of the electrohydraulic reversing valve of the hydraulic system generally does not act on the main valve core, and when the oil path needs to be cut off emergently, the main valve core can be driven by hydraulic pressure.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the electro-hydraulic quick-break valve, and when an oil way needs to be cut off promptly, a main valve core of the electro-hydraulic quick-break valve is driven by hydraulic pressure and electromagnetic force together, so that the cutting-off speed is faster.
The technical scheme adopted for solving the technical problems is as follows: the designed electrohydraulic quick-break valve comprises an armature, a coil, a control valve core, a valve body, a main valve core, a small spring, a large spring, a taper hole seat, an oil return tank, a gland, a lock nut and a taper core, wherein the main valve core is in sliding fit with the valve body, the left end of the main valve core is provided with an inner taper hole, an annular groove is arranged on an outer column of the main valve core, a small hole communicated with the annular groove is drilled on the right end surface of the main valve core, a through groove is symmetrically arranged on the outer column in the middle of the control valve core along the axial direction, a cone matched with the inner taper hole of the main valve core is arranged at the left end of the control valve core, the taper core is assembled on a stepped shaft at the left part of the control valve core and is fixed by the lock nut, the taper hole seat is fixedly arranged at the left part of the valve body, the center part of the taper hole seat is provided with a taper hole matched with the taper core, two ends of the small spring are respectively supported on the taper hole seat and the left end of the middle part of the control valve core, two ends of the large spring are respectively supported on the taper hole seat and the left end of the core, the right part of the main valve body is symmetrically provided with an oil inlet port and an oil outlet port, and the left oil return port, and the left cavity of the left valve body is communicated with the oil tank.
The left cavity of the valve body is communicated with the oil return box, and the end face of the gland is provided with a through hole which is communicated with the oil return box.
The working principle of the invention is as follows: when the main valve core is positioned at the right end, the oil inlet and outlet port on the valve body is communicated through the annular groove on the outer column of the main valve core, at the moment, the taper hole at the center part of the taper hole seat is closed, and the inner taper hole of the main valve core is opened. When the oil inlet and outlet ports on the valve body are required to be rapidly cut off, the coil is electrified and applies left electromagnetic force to the armature, so that the control valve core moves leftwards, the inner taper hole of the main valve core is closed, the taper hole in the center of the taper hole seat is opened, and the pressure difference is formed at the two ends of the main valve core. Thus, the main valve core is quickly moved right under the combined pushing of electromagnetic force and hydraulic force to cut off the oil path. When the oil way is needed to be connected, the coil is powered off, the small spring pushes the control valve core to move right, the inner taper hole of the main valve core is opened, the taper hole at the center part of the taper hole seat is closed, and the pressure difference at two ends of the main valve core is eliminated. Therefore, the main valve core moves to the right end under the action of the large spring, and the oil inlet interface and the oil outlet interface are connected.
The beneficial effects of the invention are as follows: the cutting-off speed of the oil circuit is quicker.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is A-A view of fig. 1.
In the figure, the armature is 1, the coil is 2, the control valve core is 3, the valve body is 4, the main valve core is 5, the small spring is 7, the large spring is 8, the taper hole seat is 9, the oil return tank is 10, the gland is 11, the locking nut is 12, and the taper core is formed.
Detailed Description
As seen in fig. 1 and 2, an electro-hydraulic quick-break valve according to an embodiment of the present invention includes an armature 1, a coil 2, a control valve core 3, a valve body 4, a main valve core 5, a small spring 6, a large spring 7, a taper hole seat 8, an oil return tank 9, a gland 10, a lock nut 11, and a taper core 12. The main valve core 5 is in sliding fit with the valve body 4, an inner taper hole is formed in the left end of the main valve core 5, a ring groove is formed in an outer column of the main valve core 5, and a small hole communicated with the ring groove is drilled in the right end face of the main valve core 5. The outer column in the middle of the control valve core 3 is symmetrically provided with through grooves along the axial direction, and the left end in the middle of the control valve core 3 is provided with a cone which is matched with the inner cone hole of the main valve core 5. The cone core 12 is assembled on the step shaft at the left part of the control valve core 3 and is fixed by the lock nut 11, the cone hole seat 8 is fixedly arranged at the left part of the valve body 4, and a cone hole matched with the cone core 12 is arranged at the center part of the cone hole seat 8. Two ends of the small spring 6 are respectively supported on the taper hole seat 8 and the left end of the middle part of the control valve core 3, and two ends of the large spring 7 are respectively supported on the taper hole seat 8 and the left end of the main valve core 5. The right part of the valve body 4 is symmetrically provided with an oil inlet port and an oil outlet port, and the left cavity of the valve body 4 is communicated with an oil return box 9. When the coil 2 is not electrified, the oil inlet and outlet port on the valve body 4 is communicated through the annular groove on the outer column of the main valve core 5 when the main valve core 5 is positioned at the right end, at the moment, the taper hole at the center part of the taper hole seat 8 is closed, and the inner taper hole of the main valve core 5 is opened. When the oil inlet and outlet ports on the valve body 4 are required to be rapidly cut off, the coil 2 is electrified and applies left electromagnetic force to the armature 1, so that the control valve core 3 moves leftwards, thereby closing the inner taper hole of the main valve core 5, opening the taper hole at the center part of the taper hole seat 8, and forming pressure difference at two ends of the main valve core 5. The main valve core 5 is quickly moved to the right under the combined pushing of electromagnetic force and hydraulic force to cut off the oil path. When the oil way is needed to be connected, the coil 2 is powered off, the small spring 6 pushes the control valve core 3 to move right, the inner taper hole of the main valve core 5 is opened, the taper hole at the center of the taper hole seat 8 is closed, and the pressure difference at two ends of the main valve core 5 is eliminated. Therefore, the main valve core 5 moves to the right end under the action of the large spring 7, and the oil inlet port and the oil outlet port are connected.
Claims (2)
1. The utility model provides an electro-hydraulic quick-break valve includes armature, coil, control valve core, valve body, main valve core, little spring, big spring, taper hole seat, return oil tank, gland, lock nut and awl core, its characterized in that: the main valve core is in sliding fit with the valve body, an inner taper hole is formed in the left end of the main valve core, an annular groove is formed in an outer column of the main valve core, a small hole communicated with the annular groove is drilled in the right end face of the main valve core, through grooves are symmetrically formed in the outer column of the middle of the control valve core along the axial direction, a cone matched with the inner taper hole of the main valve core is arranged at the left end of the middle of the control valve core, the taper core is assembled on a stepped shaft at the left part of the control valve core and is fixed by a locking nut, a taper hole seat is fixedly arranged at the left part of the valve body, a taper hole matched with the taper core is formed in the center of the taper hole seat, two ends of a small spring are respectively supported on the taper hole seat and the left end of the middle of the control valve core, an oil inlet interface and an oil outlet interface are symmetrically formed in the right part of the valve body, and the left cavity of the valve body is communicated with an oil return box.
2. An electrohydraulic quick disconnect valve according to claim 1, wherein: the left cavity of the valve body is communicated with the oil return box, and a through hole is arranged on the end face of the gland and is communicated with the oil return box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111540814.0A CN116265792A (en) | 2021-12-16 | 2021-12-16 | Electrohydraulic quick-break valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111540814.0A CN116265792A (en) | 2021-12-16 | 2021-12-16 | Electrohydraulic quick-break valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116265792A true CN116265792A (en) | 2023-06-20 |
Family
ID=86742768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111540814.0A Pending CN116265792A (en) | 2021-12-16 | 2021-12-16 | Electrohydraulic quick-break valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116265792A (en) |
-
2021
- 2021-12-16 CN CN202111540814.0A patent/CN116265792A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111173800B (en) | Electrohydraulic control valve for hydraulic operating mechanism and electromagnetic pilot valve and pilot valve thereof | |
| CN111503081A (en) | Electric proportional control hydraulic multi-way reversing valve and control method thereof | |
| CN108005982B (en) | Large-flow electromagnetic ball valve without leakage at transition position | |
| CN111749939B (en) | High-flow two-dimensional piston type flow servo valve | |
| CN111486149A (en) | Servo power-assisted hydraulic cylinder | |
| CN116265792A (en) | Electrohydraulic quick-break valve | |
| CN216519931U (en) | Electro-hydraulic quick-break valve | |
| JP4695453B2 (en) | Directional control valve | |
| CN207513972U (en) | A kind of no impingement electricity hydraulic control one-way valve | |
| CN103075379A (en) | Electric-hydraulic proportional pressure control valve | |
| CN101869788A (en) | Emulsion backwash filter station and hydraulic control change valve thereof | |
| CN212155303U (en) | Electric proportional control hydraulic multi-way reversing valve | |
| CN2911271Y (en) | Cam controlled continuous directional valve | |
| CN101403366B (en) | Plunger hydraulic motor mechanical-hydraulic leading switch variable-torque oil-distribution component and torque-changing method | |
| CN110762253B (en) | Confluence control valve of double pump | |
| CN114017251A (en) | Fluid motor capable of axially reciprocating | |
| CN111577699B (en) | Implementation method for electric proportional control hydraulic multi-way valve | |
| CN202451489U (en) | Numerically controlled hydraulic control device | |
| CN111878475A (en) | Load-sensitive multi-way valve bank | |
| CN111894928B (en) | Ultrahigh pressure two-way cartridge type proportional pressure reducing valve with electromagnetic isolation | |
| CN216241565U (en) | Unloading valve | |
| CN217401327U (en) | Hydraulic reversing mechanism of piston pusher centrifuge | |
| CN203114766U (en) | Electric-hydraulic proportional pressure control valve | |
| CN204942134U (en) | A kind of low power consumption large discharge high-speed switch valve | |
| CN217207942U (en) | Valve seat combination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |