CN116498614A - Normally open type large-flux two-way cartridge valve - Google Patents
Normally open type large-flux two-way cartridge valve Download PDFInfo
- Publication number
- CN116498614A CN116498614A CN202310447370.9A CN202310447370A CN116498614A CN 116498614 A CN116498614 A CN 116498614A CN 202310447370 A CN202310447370 A CN 202310447370A CN 116498614 A CN116498614 A CN 116498614A
- Authority
- CN
- China
- Prior art keywords
- valve
- opening
- valve rod
- valve core
- cavity
- 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
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 17
- 239000010720 hydraulic oil Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
Classifications
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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
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a normally open type large-flux two-way cartridge valve, which comprises a shell and is characterized in that: the casing comprises interconnect's apron, valve gap and valve pocket, swing joint has the case in the valve pocket, and the top and the valve rod of case are connected, the valve rod passes in proper order and sets up at the through-hole in valve gap center and set up at the through-hole in apron center, and the top of valve rod stands proud in the top face of apron, the middle part of valve rod is located the hydraulic pressure intracavity of seting up in the apron, is provided with the stopper on the upper portion of valve rod, cup joints the spring that is located between stopper and the valve gap outside the valve rod, just the both ends of spring respectively with stopper and valve gap fixed connection, set up the valve core chamber that holds the valve rod bottom on the case, the valve core chamber is linked together with the hydraulic pressure chamber through the through-hole in valve gap center, set up on the apron with the first control oil circuit that the hydraulic pressure chamber is linked together, first control oil circuit links to each other with the drive oil circuit.
Description
Technical Field
The invention relates to a valve, in particular to a normally open type large-flux two-way cartridge valve.
Background
The traditional hydraulic valve mostly adopts a slide valve type structure, and has the advantages of small flow capacity, high manufacturing precision, large valve core size, long switching time and large reversing impact. These disadvantages can lead to an increasing lack of adaptation of the spool valve type valve body to the high-pressure high-flow demands of the hydraulic system. Therefore, a cartridge valve is commercially available, and a cone valve serving as a main control element is inserted into an oil path block, so that the cartridge valve is obtained. The cartridge valve has an on state and an off state, and can perform logic operation, so the cartridge valve is also called a logic valve. Because the valve has a series of advantages of small liquid resistance, large through-flow capacity, quick action, less leakage and the like, the valve is widely applied to various industries such as machinery, metallurgy, automobiles, ships and the like.
However, in the conventional two-way cartridge valve, the valve core is always in a closed state by means of the compression of the spring, if the valve body needs to be opened and oil is fed, the spring force needs to be overcome, and the compression of the spring can be realized, so that the loss of flow and pressure in a special hydraulic system can be caused. There is thus a need for a method or apparatus that solves the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems, and provides the normally open type large-flux two-way cartridge valve which is simple in structure, ingenious in design and reasonable in layout, can ensure the stability of a system, and cannot cause flow and pressure loss.
The technical scheme of the invention is as follows: the utility model provides a big flux two-way cartridge valve of normally open, includes casing, its characterized in that: the shell consists of a cover plate 1, a valve cover 2 and a valve sleeve 3 which are connected with each other, a valve core 4 is movably connected in the valve sleeve 3, the top end of the valve core 4 is connected with a valve rod 5, the valve rod 5 sequentially passes through a through hole formed in the center of the valve cover 2 and a through hole formed in the center of the cover plate 1, the top end of the valve rod 5 protrudes out of the top end face of the cover plate 1, the middle part of the valve rod 5 is positioned in a hydraulic cavity 6 formed in the cover plate 1, a limiting block 7 is arranged at the upper part of the valve rod 5, a spring 8 positioned between the limiting block 7 and the valve cover 2 is sleeved outside the valve rod 5, two ends of the spring 8 are fixedly connected with the limiting block 7 and the valve cover 2 respectively, a valve core cavity 9 for accommodating the bottom of the valve rod 5 is formed in the valve core 4, the valve core cavity 9 is communicated with the hydraulic cavity 6 through the through hole in the center of the valve cover 2, a first control oil way 10 communicated with the hydraulic cavity 6 is formed in the cover plate 1, the first control oil way 10 is connected with a driving oil way,
the bottom end of the valve sleeve 3 is provided with a first opening 11 communicated with the inner cavity of the valve sleeve, the side wall of the valve sleeve 3 is provided with a second opening 12 communicated with the inner cavity of the valve sleeve, the bottom end of the valve core 4 is provided with a blocking part 13, and the blocking part 13 can close the first opening 11.
A throttle pipeline 14 is arranged on a blocking part 13 at the bottom end of the valve core 4, and when the valve core 4 is in a closed state, the blocking part 13 can keep communication between the first opening 11 and the second opening 12.
The side wall of the cover plate 1 is also provided with a second control oil way 15 communicated with the hydraulic cavity 6, and the second control oil way 15 is connected with a cavity or a pipeline connected with the first opening 11 or the second opening 12 through a pipeline with an electromagnetic valve.
Compared with the prior art, the invention has the following advantages:
the normally open type large-flux two-way cartridge valve in the structural form is simple in structure, ingenious in design and reasonable in layout. The valve core in the normally open structure is separated from the opening at the bottom end of the valve sleeve under the action of the tensile force of the spring, so that the valve core is always in a normally open state, and when the valve body is required to be closed, the valve core can be driven to move only by pushing hydraulic oil, the opening at the bottom end of the valve sleeve is closed, meanwhile, the valve core can also drive the valve rod to act, the state of the valve rod can reveal the current state of the valve body, and when a signaling alarm switch is arranged, the automatic identification of the state of the valve body can be realized. The system can be ensured to be stable, flow and pressure loss can not be caused, and the manufacturing process is simple, and the manufacturing cost is low, so that the system has various advantages, is particularly suitable for popularization and application in the field, and has very broad market prospect.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in fig. 1: the normally open type large-flux two-way cartridge valve comprises a shell, the shell is composed of a cover plate 1, a valve cover 2 and a valve sleeve 3 which are connected with each other, a valve core 4 is movably connected in the valve sleeve 3, the top end of the valve core 4 is connected with a valve rod 5, the valve rod 5 sequentially passes through a through hole formed in the center of the valve cover 2 and a through hole formed in the center of the cover plate 1, the top end of the valve rod 5 protrudes out of the top end face of the cover plate 1, the middle part of the valve rod 5 is positioned in a hydraulic cavity 6 formed in the cover plate 1, a limiting block 7 is arranged on the upper part of the valve rod 5, a spring 8 positioned between the limiting block 7 and the valve cover 2 is sleeved outside the valve rod 5, two ends of the spring 8 are fixedly connected with the limiting block 7 and the valve cover 2 respectively, a valve core cavity 9 for accommodating the bottom of the valve rod 5 is formed in the valve core 4, the valve core cavity 9 is communicated with the hydraulic cavity 6 through the through hole in the center of the valve cover 2, a first control oil way 10 communicated with the hydraulic cavity 6 is formed in the cover plate 1, the first control oil way 10 is connected with a driving oil way,
the bottom end of the valve sleeve 3 is provided with a first opening 11 communicated with the inner cavity of the valve sleeve, the side wall of the valve sleeve 3 is provided with a second opening 12 communicated with the inner cavity of the valve sleeve, the bottom end of the valve core 4 is provided with a blocking part 13, and the blocking part 13 can close the first opening 11.
A throttle pipeline 14 is arranged on a blocking part 13 at the bottom end of the valve core 4, and when the valve core 4 is in a closed state, the blocking part 13 can keep communication between the first opening 11 and the second opening 12.
The side wall of the cover plate 1 is also provided with a second control oil way 15 communicated with the hydraulic cavity 6, and the second control oil way 15 is connected with a cavity or a pipeline connected with the first opening 11 or the second opening 12 through a pipeline with an electromagnetic valve.
The working process of the normally open type large-flux two-way cartridge valve provided by the embodiment of the invention is as follows: in the initial state, under the action of the tension force of the spring 8, the valve core 4 is positioned at a relatively upper position in the valve sleeve 3, at the moment, the first opening 11 and the second opening 12 are communicated with each other, the cartridge valve is in an open state, and the spring 8 is a tension spring, so that the cartridge valve is in a normally open state;
when the pipeline needs to be closed, a signal is sent to a pump in a driving oil way through a control system, the pump acts, hydraulic oil is sent into a hydraulic cavity 6 of a cover plate 1 through the driving oil way and a first control oil way 10, the hydraulic oil enters a valve core cavity 9 through a through hole formed in a valve cover 2 and pushes a valve core 4 to move towards a direction close to a first opening 11 until a blocking part 13 at the bottom end of the valve core 4 closes the first opening 11, and the pipeline provided with the cartridge valve is closed at the moment;
when the valve core 4 is positioned at different positions, the distances between the top end of the valve rod 5 connected with the valve core and the end face of the valve cover 2 are different, so that a user can quickly judge the current state of the cartridge valve by observing the top end of the valve rod 5, and a signaling alarm switch can also be arranged for the valve rod 5 and connected with a control system, thereby realizing the automatic detection of the working state of the cartridge valve;
if the device is required to have the function of a throttle valve, a throttle pipeline 14 can be arranged on the blocking part 13 at the end part of the valve core 4, and even if the valve body is in a closed state, part of liquid can still flow from the first opening 11 to the second opening 12 through the throttle pipeline 14, so that the effect of the throttle valve is achieved;
besides controlling the valve body through a driving oil way, a chamber with pressure (connected by the first opening 11 or the second opening 12) can be directly connected with the second control oil way 15 through a pipeline with an electromagnetic valve, when the valve body needs to be closed, the electromagnetic valve is only controlled to be opened, the pipeline is conducted, and liquid with certain pressure can enter the hydraulic cavity 6 through the second control pipeline 15, so that the valve core 4 is pushed to act;
when the valve body is required to be restarted, the medium with pressure in the hydraulic cavity 6 is released, the valve core 4 moves reversely under the action of the spring 8, the blocking part 13 at the bottom end of the valve core is pulled out from the first opening 11, and the first opening 11 and the second opening 12 are communicated with each other.
Claims (3)
1. The utility model provides a big flux two-way cartridge valve of normally open, includes casing, its characterized in that: the shell consists of a cover plate (1), a valve cover (2) and a valve sleeve (3) which are connected with each other, a valve core (4) is movably connected in the valve sleeve (3), the top end of the valve core (4) is connected with a valve rod (5), the valve rod (5) sequentially passes through a through hole formed in the center of the valve cover (2) and a through hole formed in the center of the cover plate (1), the top end of the valve rod (5) protrudes out of the top end face of the cover plate (1), the middle part of the valve rod (5) is positioned in a hydraulic cavity (6) formed in the cover plate (1), a limiting block (7) is arranged at the upper part of the valve rod (5), a spring (8) positioned between the limiting block (7) and the valve cover (2) is sleeved outside the valve rod (5), two ends of the spring (8) are fixedly connected with the limiting block (7) and the valve cover (2) respectively, a valve core cavity (9) for accommodating the bottom of the valve rod (5) is formed in the valve core (4), the valve core cavity (9) is communicated with the hydraulic cavity (6) through the through hole in the center of the valve cover (2), a first oil way is formed in the cover plate (1), a first oil way is communicated with a first control oil way (10),
the bottom end of the valve sleeve (3) is provided with a first opening (11) communicated with the inner cavity of the valve sleeve, the side wall of the valve sleeve (3) is provided with a second opening (12) communicated with the inner cavity of the valve sleeve, the bottom end of the valve core (4) is provided with a blocking part (13), and the blocking part (13) can seal the first opening (11).
2. The normally open high-throughput two-way cartridge valve of claim 1, wherein: a throttling pipeline (14) is arranged on a blocking part (13) at the bottom end of the valve core (4), and when the valve core (4) is in a closed state, the blocking part (13) can keep communication between the first opening (11) and the second opening (12).
3. The normally open high-throughput two-way cartridge valve of claim 1, wherein: the side wall of the cover plate (1) is also provided with a second control oil way (15) communicated with the hydraulic cavity (6), and the second control oil way (15) is connected with a cavity or a pipeline connected with the first opening (11) or the second opening (12) through a pipeline with an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310447370.9A CN116498614A (en) | 2023-04-24 | 2023-04-24 | Normally open type large-flux two-way cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310447370.9A CN116498614A (en) | 2023-04-24 | 2023-04-24 | Normally open type large-flux two-way cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116498614A true CN116498614A (en) | 2023-07-28 |
Family
ID=87317741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310447370.9A Pending CN116498614A (en) | 2023-04-24 | 2023-04-24 | Normally open type large-flux two-way cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116498614A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2643052Y (en) * | 2003-04-10 | 2004-09-22 | 中海油田服务股份有限公司 | Two-way normally open and normally closed cartridge valve |
| US20100059130A1 (en) * | 2007-02-21 | 2010-03-11 | Mitsuhisa Tougasaki | Directional Control Valve Device and Directional Control Valve Device Block Having Directional Control Valve Devices |
| CN202017672U (en) * | 2011-05-13 | 2011-10-26 | 合肥长源液压股份有限公司 | Maintaining valve mounted multi-way valve for small-sized excavating machine |
| CN202090905U (en) * | 2011-05-26 | 2011-12-28 | 柳州固瑞机械有限公司 | Hydraulic control system for rotating system of horizontal directional drilling machine |
| CN203948754U (en) * | 2014-07-17 | 2014-11-19 | 圣邦集团有限公司 | A kind of two-way hydraulic cartridge valve open in usual |
| CN105927606A (en) * | 2016-06-23 | 2016-09-07 | 广东力源液压机械有限公司 | Hydraulic piling system and cartridge valve thereof |
| CN206708463U (en) * | 2017-05-23 | 2017-12-05 | 济宁鲁威液压科技股份有限公司 | Big flow pressure regulation two-way inserts check valve |
| CN109737112A (en) * | 2019-01-30 | 2019-05-10 | 广东科达洁能股份有限公司 | A kind of super-pressure dynamic valve |
| CN218440002U (en) * | 2022-11-10 | 2023-02-03 | 山东泰丰智能控制股份有限公司 | Pilot-operated type leakage-free safety pressure valve |
-
2023
- 2023-04-24 CN CN202310447370.9A patent/CN116498614A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2643052Y (en) * | 2003-04-10 | 2004-09-22 | 中海油田服务股份有限公司 | Two-way normally open and normally closed cartridge valve |
| US20100059130A1 (en) * | 2007-02-21 | 2010-03-11 | Mitsuhisa Tougasaki | Directional Control Valve Device and Directional Control Valve Device Block Having Directional Control Valve Devices |
| CN202017672U (en) * | 2011-05-13 | 2011-10-26 | 合肥长源液压股份有限公司 | Maintaining valve mounted multi-way valve for small-sized excavating machine |
| CN202090905U (en) * | 2011-05-26 | 2011-12-28 | 柳州固瑞机械有限公司 | Hydraulic control system for rotating system of horizontal directional drilling machine |
| CN203948754U (en) * | 2014-07-17 | 2014-11-19 | 圣邦集团有限公司 | A kind of two-way hydraulic cartridge valve open in usual |
| CN105927606A (en) * | 2016-06-23 | 2016-09-07 | 广东力源液压机械有限公司 | Hydraulic piling system and cartridge valve thereof |
| CN206708463U (en) * | 2017-05-23 | 2017-12-05 | 济宁鲁威液压科技股份有限公司 | Big flow pressure regulation two-way inserts check valve |
| CN109737112A (en) * | 2019-01-30 | 2019-05-10 | 广东科达洁能股份有限公司 | A kind of super-pressure dynamic valve |
| CN218440002U (en) * | 2022-11-10 | 2023-02-03 | 山东泰丰智能控制股份有限公司 | Pilot-operated type leakage-free safety pressure valve |
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