CN115628297B - Oil lubrication plunger type plug valve - Google Patents
Oil lubrication plunger type plug valve Download PDFInfo
- Publication number
- CN115628297B CN115628297B CN202211417418.3A CN202211417418A CN115628297B CN 115628297 B CN115628297 B CN 115628297B CN 202211417418 A CN202211417418 A CN 202211417418A CN 115628297 B CN115628297 B CN 115628297B
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- China
- Prior art keywords
- plug
- cock
- valve
- grease injection
- valve body
- Prior art date
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Classifications
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0471—Packings between housing and plug
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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
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0853—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
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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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/22—Features relating to lubrication
- F16K5/225—Features relating to lubrication for plugs with cylindrical surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses an oil lubrication plunger type plug valve which comprises a valve body, a plug cock, a plane thrust needle roller bearing and a valve cover; the plug body of the cock is arranged in the cavity of the valve body, a sealing gasket is arranged at the joint of the middle step surface of the plug body of the cock and the cavity of the valve body, a grease injection module is arranged at the upper part of a grease injection hole at the upper end of the cock, a check valve is arranged at the lower end of the grease injection module, the mounting position of the check valve is moved upwards to increase a grease storage space, a spring is arranged on the outer side of a convex cylinder at the lower end of the cock, and the spring is also connected with the bottom of a blind hole of the valve cover; the valve cover is fixedly connected with the valve body through threads, and the middle part of the large end face at the lower end of the valve body is provided with the plane thrust needle roller bearing.
Description
Technical Field
The invention belongs to the technical field of plug valves, and particularly relates to an oil lubrication plunger type plug valve.
Background
The plug valve is a rotary valve in a closing member or plunger shape, and the opening or closing of the valve is realized by rotating 90 degrees to enable a passage port on the valve plug to be communicated with or separated from a passage port on the valve body; whereas in a tapered plug the passageway is trapezoidal, these shapes make the construction of the plug valve lighter.
The plunger plug valve is mainly characterized in that a cylindrical plug valve is matched with a hole surface on the inner surface of a valve body to form a sealing pair. The common plug valve is sealed by the contact between the plug and the valve body. The sealing performance of the valve is ensured by the precision of the processing surface of the product, the sealing performance of the valve is poor, and the opening torque is large.
Disclosure of Invention
Aiming at the defects in the prior art, the oil lubrication plunger type plug valve provided by the invention solves the problems of poor sealing performance and large opening torque of the existing plug valve.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: an oil lubrication plunger type plug valve comprises a valve body, a plug, a plane thrust needle bearing, a spring and a valve cover;
the plug body of the cock is arranged in the cavity of the valve body, a sealing gasket is arranged at the joint of the middle upper part of the plug body of the cock and the cavity of the valve body, the sealing gasket and the sealing end surface of the cock arranged on the plug body of the cock form a sealing structure, a grease injection module is arranged at the upper part of a grease injection module assembling port at the upper end of the cock, a bearing mounting shaft and a spring guide are arranged on a convex cylinder at the lower end of the cock, a spring is arranged on the convex cylinder, and the convex cylinder is arranged in a blind hole of the valve cover; the valve cover is fixedly connected with the valve body through threads, and a plane needle thrust bearing is arranged at the joint of the boss part at the lower end of the valve body and the valve cover; the arc at the diamond-shaped acute angle above the cock and the square quadrangular cylinder for screwing form a through structure.
Further: the grease injection module comprises a grease injection valve nozzle, a grease injection valve body, a check valve seat, a steel ball and a check spring which are connected in sequence.
Further: a seal groove, a diamond opening and closing indicator and a cock square channel are arranged in a cock body of the cock, and the seal groove comprises a cock upper grease injection ring groove, a cock grease injection vertical groove and a cock lower grease injection ring groove;
the diamond opening and closing indication is used for indicating the full opening direction of the oil lubrication plunger type plug valve, and the square plug valve channel is used for flowing liquid substances input by the plug.
Further: the upper port of the cock grease injection vertical groove is connected with the cock upper grease injection circular groove through a grease storage groove in the valve body cavity, and is separated from the vertical groove by crossing the upper circular groove, and the cock grease injection vertical groove is communicated with the cock upper grease injection circular groove when the valve is in an open state;
the grease storage groove in the valve body cavity is square, circular or oval.
Further: the lower port of the grease injection vertical groove is connected with the lower pouring alicyclic groove of the cock, and the upper port and the lower port of the grease injection vertical groove are both of arc-shaped transition structures.
The beneficial effects of the above further scheme are: the circular arc transition structure is arranged to facilitate the flow of the sealing grease.
Further: the valve body is of a two-way, three-way or four-way structure.
The invention has the beneficial effects that:
(1) According to the oil lubrication plunger type plug valve provided by the invention, the space between the valve body and the plug valve is filled with grease through the sealing groove, a certain pressure can be stored, the grease pressure is ensured to be stable by increasing the grease storage space, the grease is dynamically supplemented, and the high-quality sealing performance of the plug valve is kept.
(2) According to the invention, the spring is arranged below the plane thrust needle roller bearing, so that the friction between the spring and the cock is reduced, and the effects of reducing the torque and reducing the abrasion of the spring to the cock made of a ductile iron material can be achieved.
Drawings
FIG. 1 is an exploded view of the assembly of an oil lubricated plunger style faucet valve.
FIG. 2 is a cross-sectional view of an oil lubricated plunger plug valve;
FIG. 3 is a cross-sectional view of the valve cartridge of the present invention;
FIG. 4 is an isometric view of the valve cartridge of the present invention;
FIG. 5 is a cross-sectional view of the valve body of the oil lubricated plunger plug valve of the present invention.
Wherein: 1. a grease injection valve nozzle; 2. a grease injection valve body; 3. a check valve seat; 4. a steel ball; 5. a check spring; 6. a valve body; 7. a gasket; 8. a cock; 9. a planar thrust needle bearing; 10. a spring; 11. a valve cover; 801. diamond opening and closing indication; 802. the plug cock seals the end face; 803. a grease injection ring groove is formed in the rotary plug; 804. a cock grease injection vertical groove; 805. a cock is used for injecting a grease ring groove downwards; 806. a cock square channel; 807. a grease injection module assembling port; 81. the check valve is provided with threads; 82. sealing the lubricating hole; 83. the upper ring groove is separated from the vertical groove; 84. the vertical groove is communicated with the bottom pouring alicyclic groove; 85. bearing mounting shaft and spring guide; 61. the valve cover is provided with threads; 62. a valve body cylindrical bore; 63. a fat storage tank; 64. the valve body is square channel.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined by the appended claims, and all changes that can be made by the invention using the inventive concept are intended to be protected.
As shown in fig. 1 to 2, in one embodiment of the present invention, an oil lubrication plunger type plug valve includes a valve body 6, a sealing gasket 7, a plug 8, a flat thrust needle bearing 9, a spring 10, and a valve cover 11;
the plug body of the cock 8 is arranged in a cavity of a valve body 6 of the cock, a sealing gasket 7 is arranged at the joint of a middle step of the cock 8 and the cavity of the valve body 6 of the cock, the sealing gasket 7 and a cock sealing end surface 802 arranged on the cock 8 form a sealing structure, a grease injection module is arranged at the upper part of a grease injection module assembling port 807 at the upper end of the cock 8, a bearing mounting shaft and a spring guide 85 are arranged on a convex cylinder at the lower end of the cock 8, and as shown in fig. 3, a plane thrust needle bearing 9 is arranged at the upper end, a spring 10 is connected downwards, and the bearing mounting shaft and the spring guide are arranged in a blind hole of a valve cover 11; the valve cover 11 is fixedly connected with the valve body 6 through a valve cover mounting thread 61.
The spring 10 is mounted below the flat needle roller thrust bearing 9, and the reduction of friction between the spring 10 and the cock 8 can play a role in reducing torque and reducing wear of the spring 10 on the cock 8 made of a ductile iron material.
The gap between the cock 8 and the valve body 6 is pressed or loosened by the thread of the bonnet 11.
The valve body 6 is in taper fit with the cock 8 axially through the valve body cylindrical hole 62, and is provided with corresponding micro taper of 0.5 degrees.
The grease injection module comprises a grease injection valve nozzle 1, a grease injection valve body 2, a check valve seat 3, a steel ball 4 and a check spring 5 which are connected in sequence; the installation position of the check valve seat 3 is designed upwards, and the grease storage space is enlarged.
The grease injection valve nozzle 1 is arranged at the upper end of the grease injection valve body 2 at the upper part of the grease injection module assembling port 807.
As shown in fig. 4, a seal groove, a diamond opening and closing indicator 801 and a plug square channel 806 are arranged in the plug body of the plug 8, and the seal groove comprises a plug upper grease injection ring groove 803, a plug grease injection vertical groove 804 and a plug lower grease injection ring groove 805;
the diamond opening and closing indication 801 is used for indicating the full opening direction of the valve of the oil lubrication plunger type cock 8, and the cock square passage 806 is used for flowing liquid substances input by the cock 8.
As shown in fig. 5, the upper port of the cock grease injection vertical groove 804 is connected to the cock upper grease injection annular groove 803 through the grease storage groove 63 in the cavity of the valve body 6, spans the upper annular groove and the vertical groove partition 83, and the cock grease injection vertical groove 804 is communicated with the cock upper grease injection annular groove 803 in the valve open state.
The grease storage groove 63 in the cavity of the valve body 6 is square, circular or oval.
The check valve mounting threads 81 move up from the existing bottom position increasing the volume of the grease reservoir.
In this embodiment, the sealing grease is injected through the top of the cock 8, and the grease sequentially passes through the grease injection valve nozzle 1, the grease injection valve body 2, the check valve seat 3, and the sealing lubrication hole 82, enters the grease injection ring groove 803 on the cock, and then enters the valve body 6. Then the grease storage groove 63 of the valve body 6 strides into the cock grease injection vertical groove 804, then the cock grease injection vertical groove 804 enters the bottom of the valve body 6, and the cock grease injection lower ring groove 805 is injected, so that the space between the bottom of the valve body 6 and the cock 8 is filled with grease and stores certain pressure. The grease is a layer of viscous oil film formed between the valve body 6 and the cock 8 to play a role in sealing. The grease storage groove 63 on the valve body 6 plays a temporary switching role of an oil way, and the grease in the oil storage space can play a role in supplementing grease to the sealing groove through the storage pressure by communicating and disconnecting the grease storage groove 63 and the oil way in the running process of the cock 8.
The vertical groove of the cock grease injection vertical groove 804 is connected with the lower grease injection circular groove connection port 84 and the cock lower grease injection circular groove 805, and the upper port and the lower port of the cock grease injection vertical groove 804 are both in circular arc transition structures.
The cock 8 is provided with a diamond opening and closing indication 801 which indicates the full opening direction of the valve, and the arc at the diamond acute angle above the cock 8 and the square quadrangular cylinder for tightening form a through structure. When the valve is open, the liquid material flows through the plug square channel 806 to the outlet.
The working principle of the oil lubrication plunger type plug valve provided by the invention is as follows: an oil lubrication plunger type plug valve is characterized in that a hole surface on the surface of an inner cavity of a valve body 6 is matched with a plug 8 to form a sealing pair, so that the sealing effect is realized.
The common plug valve is sealed by the contact between the plug 8 and the valve body 6, the sealing performance of the valve is ensured by the precision of the processing surface of the product, the sealing performance of the valve is poor, and the opening torque is large.
The valve body 6 is of a two-way, three-way or four-way structure.
The invention has the beneficial effects that: according to the oil lubrication plunger type plug valve provided by the invention, the space between the valve body 6 and the plug 8 is filled with grease through the sealing groove, a certain pressure can be stored, the grease pressure is ensured to be stable through the check valve, the grease is dynamically supplemented, and the high-quality sealing performance of the plug 8 valve is kept.
According to the invention, the spring 10 is arranged below the plane thrust needle roller bearing 9, and the effect of reducing the torque and the abrasion of the spring 10 on the cock 8 made of a ductile iron material can be achieved by reducing the friction between the spring 10 and the cock 8.
In the description of the present invention, it is to be understood that the terms "central," "thickness," "upper," "lower," "horizontal," "top," "bottom," "inner," "outer," "radial," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientation or positional relationship shown in the figures, and are used for convenience in describing the present invention and to simplify the description. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or an implicit indication of the number of technical features. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
Claims (3)
1. An oil lubrication plunger type plug valve is characterized by comprising a valve body (6), a plug (8), a plane thrust needle bearing (9), a spring (10) and a valve cover (11);
the plug body of the plug (8) is arranged in a cavity of the valve body (6), a sealing gasket (7) is arranged at the joint of the middle upper part of the plug body of the plug (8) and the cavity of the valve body (6), the sealing gasket (7) and a plug sealing end surface (8B) arranged on the plug (8) form a sealing structure, a grease injection module is arranged at the upper part of a grease injection module assembling port (8G) at the upper end of the plug (8), a bearing mounting shaft and a spring guide (85) are arranged on a convex cylinder at the lower end of the plug (8), and a spring (10) is arranged on the convex cylinder and arranged in a blind hole of a valve cover (11); the valve cover (11) is fixedly connected with the valve body (6) through threads, and a plane thrust needle roller bearing (9) is arranged at the joint of a boss part at the lower end of the valve body (6) and the valve cover (11); the arc at the diamond acute angle above the cock (8) and the square quadrangular cylinder for screwing form a through structure;
the grease injection module comprises a grease injection valve nozzle (1), a grease injection valve body (2), a check valve seat (3), a steel ball (4) and a check spring (5) which are connected in sequence;
a seal groove, a rhombic opening and closing indicator (8A) and a cock square channel (8F) are arranged in a cock body of the cock (8), and the seal groove comprises a cock upper grease injection ring groove (8C), a cock grease injection vertical groove (8D) and a cock lower grease injection ring groove (8E);
the rhombic opening and closing indicator (8A) is used for indicating the full opening direction of the oil lubrication plunger type plug valve, and the plug square channel (8F) is used for circulating a liquid substance input by the plug (8);
the upper port of the cock grease injection vertical groove (8D) is connected with a cock upper grease injection circular groove (8C) through a grease storage groove (63) in the cavity of the valve body (6), and crosses over the upper circular groove to be disconnected with the vertical groove grid (83), and the cock grease injection vertical groove (8D) is communicated with the cock upper grease injection circular groove (8C) in the valve opening state;
the grease storage groove (63) in the cavity of the valve body (6) is square, circular or oval.
2. An oil-lubricated plunger-type plug valve according to claim 1, characterized in that the lower port of the plug grease injection vertical groove (8D) is connected with the lower grease injection ring groove (8E), and the upper port and the lower port of the plug grease injection vertical groove (8D) are both arranged in a circular arc transition structure.
3. An oil-lubricated plunger-type plug valve according to claim 1, characterized in that the valve body (6) is of a two-way, three-way or four-way construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211417418.3A CN115628297B (en) | 2022-11-14 | 2022-11-14 | Oil lubrication plunger type plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211417418.3A CN115628297B (en) | 2022-11-14 | 2022-11-14 | Oil lubrication plunger type plug valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115628297A CN115628297A (en) | 2023-01-20 |
| CN115628297B true CN115628297B (en) | 2023-03-10 |
Family
ID=84910577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211417418.3A Active CN115628297B (en) | 2022-11-14 | 2022-11-14 | Oil lubrication plunger type plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115628297B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB281844A (en) * | 1926-11-08 | 1927-12-15 | Robert William Leach | Improvements relating to valves or cocks |
| GB422876A (en) * | 1933-03-15 | 1935-01-21 | American Car & Foundry Co | Improvements relating to lubricated valves |
| GB429796A (en) * | 1933-03-15 | 1935-06-06 | American Car & Foundry Co | Improvements relating to lubricated valves |
| GB586761A (en) * | 1943-07-02 | 1947-03-31 | Newman Hender & Company Ltd | Lubricated valve |
| CN204004537U (en) * | 2014-07-23 | 2014-12-10 | 常州市奥达电子有限公司 | Lubricating type stopcock |
| CN215334637U (en) * | 2021-03-15 | 2021-12-28 | 温州诺盟科技有限公司 | Reversing plug valve |
| CN216519702U (en) * | 2021-09-30 | 2022-05-13 | 江苏高华流体控制有限公司 | High-temperature-resistant spinning plug valve |
| CN217056413U (en) * | 2022-03-22 | 2022-07-26 | 工奈阀门有限公司 | Ball valve with stably-installed valve element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100549478C (en) * | 2007-09-18 | 2009-10-14 | 虞仕君 | A kind of floating taper cock valve |
| CN201836431U (en) * | 2010-10-28 | 2011-05-18 | 王硕明 | Fully screwed cock valve |
| CN102853089A (en) * | 2012-09-27 | 2013-01-02 | 四川优机实业股份有限公司 | Low-temperature stop valve |
-
2022
- 2022-11-14 CN CN202211417418.3A patent/CN115628297B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB281844A (en) * | 1926-11-08 | 1927-12-15 | Robert William Leach | Improvements relating to valves or cocks |
| GB422876A (en) * | 1933-03-15 | 1935-01-21 | American Car & Foundry Co | Improvements relating to lubricated valves |
| GB429796A (en) * | 1933-03-15 | 1935-06-06 | American Car & Foundry Co | Improvements relating to lubricated valves |
| GB586761A (en) * | 1943-07-02 | 1947-03-31 | Newman Hender & Company Ltd | Lubricated valve |
| CN204004537U (en) * | 2014-07-23 | 2014-12-10 | 常州市奥达电子有限公司 | Lubricating type stopcock |
| CN215334637U (en) * | 2021-03-15 | 2021-12-28 | 温州诺盟科技有限公司 | Reversing plug valve |
| CN216519702U (en) * | 2021-09-30 | 2022-05-13 | 江苏高华流体控制有限公司 | High-temperature-resistant spinning plug valve |
| CN217056413U (en) * | 2022-03-22 | 2022-07-26 | 工奈阀门有限公司 | Ball valve with stably-installed valve element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115628297A (en) | 2023-01-20 |
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