CN109578609A - A kind of band prevents the ceramic valve of spool stress fracture protection structure - Google Patents
A kind of band prevents the ceramic valve of spool stress fracture protection structure Download PDFInfo
- Publication number
- CN109578609A CN109578609A CN201910062994.2A CN201910062994A CN109578609A CN 109578609 A CN109578609 A CN 109578609A CN 201910062994 A CN201910062994 A CN 201910062994A CN 109578609 A CN109578609 A CN 109578609A
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- China
- Prior art keywords
- spool
- valve
- protection structure
- stress fracture
- ceramic
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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
- F16K5/06—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 spherical surfaces; Packings therefor
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses the ceramic valves that a kind of band prevents spool stress fracture protection structure, including the valve body being connected to external fluid pipeline, it is fixed on the intracorporal valve seat of the valve, it is set in the valve body and can be relative to the valve rod for the spool and the control valve core movement state that the valve seat moves, the protection structure for preventing spool stress fracture is provided at the connection transmission position of the valve rod and the spool, wherein, through-hole is offered on the spool, the valve rod passes through the through-hole and is fixedly connected with the spool, the protection structure includes the arc transition structure between multiple obtuse angle structures in each face in the through-hole and two neighboring obtuse angle structure.The present invention can effectively reduce valve rod and connect the stress being subject at transmission position with spool, to reduce valve rod and spool connection transmission position cracks and the phenomenon that fragmentation, improves the service life of ceramic valve.
Description
Technical field
The invention belongs to valve technology fields, and the ceramics of spool stress fracture protection structure are prevented more particularly, to a kind of band
Valve.
Background technique
Valve has very important status in industrial production activities, is a kind of for adjusting the device of fluid flow.
Valve can be divided into Direct Action Type and two kinds rotary according to the forms of motion of valve internal spool.Wherein, rotary control valve
Door is structurally similar to ball valve, its working principle is that the rotation angle of control valve core is come by the valve rod of rotation connection spool,
To make the runner of opening and fluid on spool form actual internal area of different sizes, thus big to change the flow of fluid
It is small.Since valve has good fluid flow control ability, in the fields such as papermaking, petroleum, chemical industry, sewage treatment and electric power
It is widely used.
Current valve is broadly divided into ceramic valve and metal valve according to constituent material.Since ceramic valve is encountering height
Temperature, burn into wash away etc. more outstanding than traditional metal valve under bad working environments environment, and leakproofness is also more preferable, therefore obtains
Widely application.But ceramic valve in the prior art is being opened, improper torque is such as occurring in closing process, such as
Valve is blocked by foreign matter, or under the bad working environments environment such as range is excessive of the violent cataclysm of the temperature difference in external environment, will very
Be easy to cause the connection transmission position of valve rod and spool cracked under the action of stress with fragmentation phenomenon, and influence ceramic valve
Service life.
Summary of the invention
The purpose of the present invention is to provide the ceramic valves that a kind of band prevents spool stress fracture protection structure, can be effective
Reduce valve rod and connect the stress being subject at transmission position with spool, thus reduce valve rod and spool connect transmission position crack with it is broken
The phenomenon that splitting improves the service life of ceramic valve.
A kind of band provided in an embodiment of the present invention prevent spool stress fracture protection structure ceramic valve, including with outside
The valve body of fluid line connection, is fixed on the intracorporal valve seat of the valve, is set in the valve body and can be relative to the valve seat
It is arranged at the connection transmission position of the spool of movement and the valve rod of the control valve core movement state, the valve rod and the spool
Have the protection structure for preventing spool stress fracture, wherein offer through-hole on the spool, the valve rod pass through the through-hole with
The spool is fixedly connected, it is described protection structure include each face in the through-hole multiple obtuse angle structures and two neighboring obtuse angle knot
Arc transition structure between structure.
Further, the connection transmission position of the valve rod and the spool is multiple.
Further, the through-hole is the flat hole in side.
Further, the spool is spheroidal.
Further, the spool is not in circular ring shape with the cross section of the part of the valve stem contacts.
Further, the valve seat is internally provided with the channel being connected to the fluid line, and the spool is located at institute
It states in channel.
Further, the spool is fabricated by ceramic material.
Prevent spool stress broken in conclusion the present invention is provided at the connection transmission position of the valve rod and the spool
The protection structure split, wherein through-hole is offered on the spool, the valve rod passes through the through-hole and the fixed company of the spool
It connects, the protection structure includes the circular arc mistake between multiple obtuse angle structures in each face in the through-hole and two neighboring obtuse angle structure
Cross structure.Due to increasing the angle between the through-hole inner face and face and the quantity in face, and the sharp corner intersected in face with face
Using arc transition structure, valve rod can be effectively reduced and connect the stress being subject at transmission position with spool, thus reduce valve rod and
Spool connection transmission position cracks and the phenomenon that fragmentation, improves the service life of ceramic valve.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore should not be viewed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the solid for the ceramic valve that a kind of band provided in an embodiment of the present invention prevents spool stress fracture protection structure
Structural schematic diagram.
Fig. 2 is the ceramic valve that a kind of band provided in an embodiment of the present invention prevents spool stress fracture protection structure along vertical
To the schematic diagram of the section structure in direction.
Fig. 3 is the ceramic valve that a kind of band provided in an embodiment of the present invention prevents spool stress fracture protection structure along water
Square to the schematic diagram of the section structure.
Icon:
Valve body 100；Valve seat 200；Spool 300；Valve rod 400；Protect structure 500.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative labor, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Current valve is broadly divided into ceramic valve and metal valve according to constituent material.Since ceramic valve is encountering height
Temperature, burn into wash away etc. more outstanding than traditional metal valve under bad working environments environment, and leakproofness is also more preferable, therefore obtains
Widely application.But ceramic valve in the prior art is being opened, improper torque is such as occurring in closing process, such as
Valve is blocked by foreign matter, or under the bad working environments environment such as range is excessive of the violent cataclysm of the temperature difference in external environment, will very
Be easy to cause the connection transmission position of valve rod and spool cracked under the action of stress with fragmentation phenomenon, and influence ceramic valve
Service life.
In view of this, the present invention provides the ceramic valves that a kind of band prevents spool stress fracture protection structure, it is intended to have
Effect improves above-mentioned technical problem.
As shown in Figure 1-Figure 3, a kind of band provided in an embodiment of the present invention prevents the ceramics of spool stress fracture protection structure
Valve may include valve body 100, valve seat 200, spool 300 and valve rod 400 etc..Wherein, the valve body 100 and external fluid pipeline
Connection, the valve seat 200 is fixed in the valve body 100, and the spool 300 is set in the valve body 100 and can be relative to
The valve seat 200 moves, and the valve rod 400 is for controlling 300 motion state of spool.It is worth noting that the spool
300 are fabricated by ceramic material.
In the present embodiment, being provided at the valve rod 400 and the connection transmission position of the spool 300 prevents spool stress broken
The protection structure 500 split.Specifically, offer through-hole on the spool 300, the valve rod 400 pass through the through-hole with it is described
Spool 300 is fixedly connected, and the protection structure 500 includes multiple obtuse angle structures in each face and two neighboring obtuse angle in the through-hole
Arc transition structure between structure.By increasing the angle between face and face, and use arc transition structure opposite face
The sharp corner of intersection carries out transition, can improve stress concentration of local and separate, the protection structure of circular arc dissipation according to obtuse angle
500 can effectively reduce the stress being subject at valve rod 400 and the connection transmission position of spool 300, to reduce valve rod 400 and spool
300 connection transmission positions crack and the phenomenon that fragmentation, improve the service life of ceramic valve.
Further, the connection transmission position of the valve rod 400 and the spool 300 is multiple, is passed with increasing the connection
The quantity of stress surface at dynamic position, to further decrease the stress being subject at the connection transmission position.
Preferably, the through-hole is the flat hole in side.The spool 300 is spheroidal.And the spool 300 not with the valve
The cross section for the part that bar 400 contacts is in circular ring shape.
When implementation, the inside of the valve seat 200 is additionally provided with the channel being connected to the fluid line, the spool 300
In the channel, to adjust fluid flow etc..
In addition, the spool 300 of the ceramic valve first allow before sintering structure just one-step forming, sintering complete through examine be sintered
Precise finiss is carried out after qualification again, then completes related processing technology.
In conclusion the present invention is provided at the connection transmission position of the valve rod 400 and the spool 300 prevents spool
The protection structure 500 of stress fracture, wherein offer through-hole on the spool 300, the valve rod 400 pass through the through-hole with
The spool 300 is fixedly connected, and the protection structure 500 includes multiple obtuse angle structures in each face and two neighboring in the through-hole
Arc transition structure between obtuse angle structure.Due to increasing the angle between the through-hole inner face and face and the quantity in face, and
Arc transition structure is used in the sharp corner that face is intersected with face, valve rod 400 can be effectively reduced and spool 300 connects at transmission position
The stress being subject to cracks to reduce valve rod 400 and spool 300 and connect transmission position and the phenomenon that fragmentation, improves ceramic valve
The service life of door.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of band prevent spool stress fracture protection structure ceramic valve, which is characterized in that including with external fluid pipeline
The valve body of connection is fixed on the intracorporal valve seat of the valve, is set to the valve that can be moved in the valve body and relative to the valve seat
Being provided at the connection transmission position of the valve rod of core and the control valve core movement state, the valve rod and the spool prevents valve
The protection structure of core stress fracture, wherein through-hole is offered on the spool, the valve rod passes through the through-hole and the spool
It is fixedly connected, the protection structure includes between multiple obtuse angle structures in each face in the through-hole and two neighboring obtuse angle structure
Arc transition structure.
2. the ceramic valve that band according to claim 1 prevents spool stress fracture protection structure, which is characterized in that described
The connection transmission position of valve rod and the spool is multiple.
3. the ceramic valve that band according to claim 1 prevents spool stress fracture protection structure, which is characterized in that described
Through-hole is the flat hole in side.
4. the ceramic valve that band according to claim 1 prevents spool stress fracture protection structure, which is characterized in that described
Spool is spheroidal.
5. the ceramic valve that band according to claim 1 prevents spool stress fracture protection structure, which is characterized in that described
Spool is not in circular ring shape with the cross section of the part of the valve stem contacts.
6. the ceramic valve that band according to claim 1 prevents spool stress fracture protection structure, which is characterized in that described
Valve seat is internally provided with the channel being connected to the fluid line, and the spool is located in the channel.
7. the ceramic valve that band according to claim 1 prevents spool stress fracture protection structure, which is characterized in that described
Spool is fabricated by ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062994.2A CN109578609A (en) | 2019-01-23 | 2019-01-23 | A kind of band prevents the ceramic valve of spool stress fracture protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062994.2A CN109578609A (en) | 2019-01-23 | 2019-01-23 | A kind of band prevents the ceramic valve of spool stress fracture protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109578609A true CN109578609A (en) | 2019-04-05 |
Family
ID=65917814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910062994.2A Pending CN109578609A (en) | 2019-01-23 | 2019-01-23 | A kind of band prevents the ceramic valve of spool stress fracture protection structure |
Country Status (1)
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|---|---|
| CN (1) | CN109578609A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6367774B1 (en) * | 2000-04-19 | 2002-04-09 | Flowserve Corporation | Element having ceramic insert and high-strength element-to-shaft connection for use in a valve |
| CN201621319U (en) * | 2009-10-12 | 2010-11-03 | 天津市圣恺工业技术发展有限公司 | Enhanced ceramic sphere |
| CN202531897U (en) * | 2012-04-28 | 2012-11-14 | 郑州鼎盛工程技术有限公司 | Ball body of fracture-preventing large-diameter composite ceramic ball valve and composite ceramic ball valve |
| CN203035994U (en) * | 2012-12-18 | 2013-07-03 | 天津华祥新科技发展有限公司 | Corrosion resisting ceramic valve |
| CN104315187A (en) * | 2014-10-11 | 2015-01-28 | 烟台金泰美林科技有限公司 | Ceramic ball core for ball valve |
-
2019
- 2019-01-23 CN CN201910062994.2A patent/CN109578609A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6367774B1 (en) * | 2000-04-19 | 2002-04-09 | Flowserve Corporation | Element having ceramic insert and high-strength element-to-shaft connection for use in a valve |
| CN201621319U (en) * | 2009-10-12 | 2010-11-03 | 天津市圣恺工业技术发展有限公司 | Enhanced ceramic sphere |
| CN202531897U (en) * | 2012-04-28 | 2012-11-14 | 郑州鼎盛工程技术有限公司 | Ball body of fracture-preventing large-diameter composite ceramic ball valve and composite ceramic ball valve |
| CN203035994U (en) * | 2012-12-18 | 2013-07-03 | 天津华祥新科技发展有限公司 | Corrosion resisting ceramic valve |
| CN104315187A (en) * | 2014-10-11 | 2015-01-28 | 烟台金泰美林科技有限公司 | Ceramic ball core for ball valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190405 |