CN111288183A - Hydraulic logic slide valve capable of realizing three-position multi-way - Google Patents
Hydraulic logic slide valve capable of realizing three-position multi-way Download PDFInfo
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- CN111288183A CN111288183A CN201911362708.0A CN201911362708A CN111288183A CN 111288183 A CN111288183 A CN 111288183A CN 201911362708 A CN201911362708 A CN 201911362708A CN 111288183 A CN111288183 A CN 111288183A
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- piston
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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
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention belongs to the field of hydraulic engineering, and provides a hydraulic logic slide valve capable of realizing three-position multi-way communication, reducing the size and weight of a system and improving the reliability. The invention comprises the following steps: the valve comprises a screw cap (1), a spring (2), a spring seat (6), a valve core (7), a valve sleeve (8), a piston sleeve (11) and a piston (12); two sealing grooves are processed on the outer cylindrical surface of the piston (12) and are arranged in the piston sleeve (11); the left end of the piston (12) is a cylindrical boss and can be contacted with the right end face of the valve core (7); the valve core (7) is in clearance fit with the inner surface of the valve sleeve (8) through three sections of cylindrical convex shoulders, the left end of the valve core (7) is a cylindrical boss, and the left end surface of the boss is spherical; the right end face of the spring seat (6) is in contact with the end face of a convex shoulder on the left side of the valve core (7), the spring (2) is sleeved on the spring seat (6), and the screw cap (1) is sleeved on the spring (2).
Description
Technical Field
The invention belongs to the field of hydraulic engineering, and relates to a hydraulic logic slide valve capable of realizing three-position multi-way communication.
Background
In the design process of the reversing valve, the two-position reversing valve which is frequently adopted has a single structure and low space utilization rate, and needs a plurality of reversing valves to work in a combined manner to realize multi-position reversing, so that the size and the weight of a system are increased, and the reliability of the system is reduced.
Disclosure of Invention
The purpose of the invention is as follows:
the three-position multi-way hydraulic logic slide valve can realize three-position multi-way, reduce the size and weight of a system and improve the reliability.
The technical scheme adopted by the invention is as follows:
a three-position, multi-ported hydraulic logic spool valve, comprising: the valve comprises a screw cap 1, a spring 2, a spring seat 6, a valve core 7, a valve sleeve 8, a piston sleeve 11 and a piston 12;
two sealing grooves are processed on the outer cylindrical surface of the piston 12, are arranged in the piston sleeve 11 and can slide in a certain range; the left end of the piston 12 is a cylindrical boss, the left end surface of the boss is spherical and can be contacted with the right end surface of the valve core 7, and a convex shoulder formed by two sections of cylinders with different diameters on the piston 12 and a convex shoulder of the inner cavity of the piston sleeve 11 jointly complete the limitation of the sliding displacement of the left side of the piston 12;
the valve core 7 forms clearance fit with the inner surface of the valve sleeve 8 through three sections of cylindrical convex shoulders and can slide in a certain range, the left end of the valve core 7 is a cylindrical boss, the left end surface of the boss is spherical, and when the spherical surface is contacted with the inner wall of the left side of the screw cap 1, the valve core 7 reaches the limit position of the left side;
the right end face of the spring seat 6 is in end contact with a convex shoulder on the left side of the valve core 7, the spring 2 is sleeved on the spring seat 6, the screw cap 1 is sleeved on the spring 2, the left end of the spring 2 acts on the inner wall on the left side of the screw cap 1, and the right side of the spring 2 acts on the valve core 7 through the spring seat 6.
The outer wall of the screw cap 1 is provided with threads and two grooves, and a 1-type sealing ring 3, a 1-type protective ring 4 and a 2-type sealing ring 5 are respectively arranged in the grooves on the outer wall of the screw cap 1.
The 4-type sealing ring 13 and the 4-type protection ring 14 are arranged in a groove on the piston 12, and the 4-type sealing ring 13 is used for isolating control oil in the left cavity and the right cavity of the piston 12.
In the initial state, the right end face of the piston 12 is flush with the right end face of the piston sleeve 11, and this position is also the right limit position of the piston 12.
In the initial state, the right end surface of the valve core 7 contacts with the spherical surface of the left end of the piston 12, and the position is also the right limit position of the valve core 7.
When the system is installed, the end surface of the right side of the screw cap 1 is contacted with the end surface of the left side of the valve sleeve 8, the valve sleeve 8 and the piston sleeve 11 are sequentially pressed under the action of the threads on the screw cap 1, and meanwhile, the spring 2 forms pre-pressure.
The valve sleeve 8 is divided into oil holes by adopting a plurality of convex shoulders, grooves are processed on the convex shoulders, and a 3-type protective ring 9 and a 3-type sealing ring 10 are arranged in the grooves on the convex shoulders on the outer wall of the valve sleeve 8 and used for sealing.
The invention has the beneficial effects that:
aiming at the requirements of more stations, smaller size and lighter weight, the invention realizes the reliable switching of a plurality of working positions of the valve core through the combination of the piston, the piston sleeve, the valve core and the screw cap, thereby realizing the multi-station integration of the slide valve, and effectively reducing the overall dimension and the weight of the product through the reasonable design of the angle of the oil hole of the valve sleeve.
Drawings
FIG. 1: one can realize the three-position multi-way hydraulic logic slide valve working position one;
FIG. 2: a second working position of the hydraulic logic slide valve capable of realizing three-position multi-way communication;
FIG. 3: a third working position of the hydraulic logic slide valve capable of realizing three-position multi-way;
the valve core is composed of a 1-type screw cap, a 2-type spring, a 31-type sealing ring, a 41-type protective ring, a 52-type sealing ring, a 6-type spring seat, a 7-type valve core, an 8-type valve sleeve, a 93-type protective ring, a 103-type sealing ring, an 11-type piston sleeve, a 12-type piston, a 134-type sealing ring and a 144-type protective ring.
Detailed Description
The invention is described in further detail below with reference to the drawings.
The working position of the slide valve assembly is shown in figure 1, and comprises a screw cap 1, a spring 2, a 1-type sealing ring 3, a 1-type protective ring 4, a 2-type sealing ring 5, a spring seat 6, a valve core 7, a valve sleeve 8, a 3-type protective ring 9, a 3-type sealing ring 10, a piston sleeve 11, a piston 12, a 4-type sealing ring 13 and a 4-type protective ring 14; wherein, the outer cylinder face processing has two seal grooves and installs in piston sleeve 11 is inside to can slide in the certain limit, 4 type sealing washer 13 and 4 type guard circle 14 are installed in the slot on piston 12, 4 type sealing washer 13 is used for keeping apart the control oil in two chambeies about piston 12. In an initial state, the end surface of the right side of the piston 12 is flush with the end surface of the right side of the piston sleeve 11, the position is also the limit position of the right side of the piston 12, the left end of the piston 12 is a cylindrical boss, the left end surface of the boss is spherical and can be contacted with the end surface of the right end of the valve core 7, and a convex shoulder formed by two sections of cylinders with different diameters on the piston 12 and a convex shoulder in the inner cavity of the piston sleeve 11 jointly complete the limitation of the sliding displacement of the left side of;
the right end face of the spring seat 6 is in contact with the end face of a convex shoulder on the left side of the valve core 7, the spring 2 is sleeved on the spring seat 6, the screw cap 1 is sleeved on the spring 2, the left end of the spring 2 acts on the inner wall on the left side of the screw cap 1, the right side of the spring 2 acts on the valve core 7 through the spring seat 6, the end face on the right side of the screw cap 1 is in contact with the end face on the left side of the valve sleeve 8, when the system is installed, the valve sleeve 8 and the piston sleeve 11 are sequentially pressed under the action of threads on the screw cap 1. The control oil of the component is located at the ports G and H, and under the state of a working position, the ports G and H have no control oil, so that under the action of the spring 2, the valve core 7 and the piston sleeve 11 are located at the extreme position of the rightmost end, and at the moment, the ports C and F are opened but are isolated from each other and are not communicated with each other.
The second working position of the sliding valve assembly is shown in fig. 2, under the action of the control oil of the port H, the piston 12 pushes the valve core 7 to move leftwards, meanwhile, the valve core 7 compresses the spring 2 through the spring seat 6, when the shoulder of the inner cavity of the piston sleeve 11 is contacted with the shoulder of the piston 12, the valve core 7 moves to the second working position, at the moment, the port B is communicated with the port C, and the port E is communicated with the port F.
The third working position of the slide valve assembly is shown in fig. 3, at this time, under the control oil action of the port G, the piston sleeve 11 moves rightwards to the limit position, the valve core 7 moves leftwards and compresses the spring 2, when the left end spherical surface of the valve core 7 is contacted with the inner wall of the left end of the screw cap 1, the valve core 7 reaches the limit position of the left end, namely the second working position shown in fig. 3, at this time, the port B is communicated with the port A, the port E is communicated with the port D, and the port C is closed.
The valve sleeve 8 is provided with the inclined oil hole, the axial interval between two adjacent oil holes at the outer diameter of the valve sleeve is larger, so that the arrangement space of the protective ring 9 and the O-shaped rubber sealing ring 10 is ensured, the axial interval at the inner diameter of the valve sleeve is smaller, the length of a convex shoulder section of the valve core 7 is reduced, the axial sizes of the valve core 7 and the valve sleeve 8 are reduced to the maximum degree on the premise of ensuring the strength requirement on the whole, and the size and the weight of the whole sliding valve assembly are reduced.
The inner cavity of the screw cap 1 is connected with a system oil return cavity, so that the pressure balance of a moving part in the valve is achieved.
Claims (7)
1. A three-position, multi-port hydraulic logic spool valve, comprising: the valve comprises a screw cap (1), a spring (2), a spring seat (6), a valve core (7), a valve sleeve (8), a piston sleeve (11) and a piston (12);
two sealing grooves are processed on the outer cylindrical surface of the piston (12), are arranged in the piston sleeve (11), and can slide in a certain range; the left end of the piston (12) is a cylindrical boss, the left end face of the boss is spherical and can be contacted with the right end face of the valve core (7), and a convex shoulder formed by two sections of cylinders with different diameters on the piston (12) and a convex shoulder of the inner cavity of the piston sleeve (11) jointly complete the limitation of the sliding displacement of the left side of the piston (12);
the valve core (7) is in clearance fit with the inner surface of the valve sleeve (8) through three sections of cylindrical convex shoulders and can slide in a certain range, the left end of the valve core (7) is a cylindrical boss, the left end surface of the boss is spherical, and when the spherical surface is contacted with the inner wall of the left side of the screw cover (1), the valve core (7) reaches the limit position of the left side;
the right end face of the spring seat (6) is in end contact with a convex shoulder on the left side of the valve core (7), the spring (2) is sleeved on the spring seat (6), the screw cap (1) is sleeved on the spring (2), the left end of the spring (2) acts on the inner wall on the left side of the screw cap (1), and the right side of the spring (2) acts on the valve core (7) through the spring seat (6).
2. A three-position, multi-way hydraulic logic spool valve as claimed in claim 1,
the outer wall of the screw cap (1) is provided with threads and two grooves, and the 1-type sealing ring (3), the 1-type protective ring (4) and the 2-type sealing ring (5) are respectively arranged in the grooves on the outer wall of the screw cap (1).
3. A three-position, multi-way hydraulic logic spool valve as claimed in claim 1,
the 4-shaped sealing ring (13) and the 4-shaped protection ring (14) are arranged in a groove on the piston (12), and the 4-shaped sealing ring (13) is used for isolating control oil of a left cavity and a right cavity of the piston (12).
4. A three-position, multi-way hydraulic logic spool valve as claimed in claim 1,
in the initial state, the right end face of the piston (12) is flush with the right end face of the piston sleeve (11), and the position is also the right limit position of the piston (12).
5. A three-position, multi-way hydraulic logic spool valve as claimed in claim 1,
in the initial state, the right end surface of the valve core (7) is contacted with the spherical surface of the left end of the piston (12), and the position is also the right limit position of the valve core (7).
6. A three-position, multi-way hydraulic logic spool valve as claimed in claim 1,
when the system is installed, the end face of the right side of the screw cap (1) is contacted with the end face of the left side of the valve sleeve (8), the valve sleeve (8) and the piston sleeve (11) are sequentially pushed tightly under the action of the threads on the screw cap (1), and meanwhile, the spring (2) forms pre-pressure.
7. A three-position, multi-way hydraulic logic spool valve as claimed in claim 1,
the valve sleeve (8) is divided into oil holes by adopting a plurality of convex shoulders, grooves are processed on the convex shoulders, and the 3-type protective ring (9) and the 3-type sealing ring (10) are arranged in the grooves on the convex shoulder on the outer wall of the valve sleeve (8) and used for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362708.0A CN111288183A (en) | 2019-12-25 | 2019-12-25 | Hydraulic logic slide valve capable of realizing three-position multi-way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362708.0A CN111288183A (en) | 2019-12-25 | 2019-12-25 | Hydraulic logic slide valve capable of realizing three-position multi-way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111288183A true CN111288183A (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911362708.0A Pending CN111288183A (en) | 2019-12-25 | 2019-12-25 | Hydraulic logic slide valve capable of realizing three-position multi-way |
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| CN (1) | CN111288183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594367A (en) * | 2021-03-02 | 2021-04-02 | 北京航空航天大学 | Multi-path distribution cooling and lubricating system of pure electric or hybrid power driving system |
Citations (6)
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|---|---|---|---|---|
| CN102889397A (en) * | 2011-07-22 | 2013-01-23 | Smc株式会社 | Energy-saving valve |
| US20150059893A1 (en) * | 2013-08-28 | 2015-03-05 | Smc Corporation | Five-port switching valve with residual pressure exhaust valve |
| US20160327168A1 (en) * | 2015-05-08 | 2016-11-10 | Smc Corporation | Flow passage switching unit |
| CN107120330A (en) * | 2017-05-23 | 2017-09-01 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of bypass orifice valve for Hydrauservo System |
| CN208348549U (en) * | 2018-03-19 | 2019-01-08 | 庆安集团有限公司 | A kind of sleeve valve device with manual bypass function |
| CN110594221A (en) * | 2019-08-27 | 2019-12-20 | 华中科技大学 | Valve core and valve sleeve matching pair and hydraulic/pneumatic force compensation method thereof |
-
2019
- 2019-12-25 CN CN201911362708.0A patent/CN111288183A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889397A (en) * | 2011-07-22 | 2013-01-23 | Smc株式会社 | Energy-saving valve |
| US20150059893A1 (en) * | 2013-08-28 | 2015-03-05 | Smc Corporation | Five-port switching valve with residual pressure exhaust valve |
| US20160327168A1 (en) * | 2015-05-08 | 2016-11-10 | Smc Corporation | Flow passage switching unit |
| CN107120330A (en) * | 2017-05-23 | 2017-09-01 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of bypass orifice valve for Hydrauservo System |
| CN208348549U (en) * | 2018-03-19 | 2019-01-08 | 庆安集团有限公司 | A kind of sleeve valve device with manual bypass function |
| CN110594221A (en) * | 2019-08-27 | 2019-12-20 | 华中科技大学 | Valve core and valve sleeve matching pair and hydraulic/pneumatic force compensation method thereof |
Non-Patent Citations (1)
| Title |
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| 贾培起: "《液压传动》", 31 March 1982, 天津科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594367A (en) * | 2021-03-02 | 2021-04-02 | 北京航空航天大学 | Multi-path distribution cooling and lubricating system of pure electric or hybrid power driving system |
| CN112594367B (en) * | 2021-03-02 | 2021-05-28 | 北京航空航天大学 | Multi-path distribution cooling and lubricating system of pure electric or hybrid power driving system |
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Application publication date: 20200616 |