CN103498943A - Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction - Google Patents
Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction Download PDFInfo
- Publication number
- CN103498943A CN103498943A CN201310397263.6A CN201310397263A CN103498943A CN 103498943 A CN103498943 A CN 103498943A CN 201310397263 A CN201310397263 A CN 201310397263A CN 103498943 A CN103498943 A CN 103498943A
- Authority
- CN
- China
- Prior art keywords
- valve
- nut
- thrust bearing
- support
- valve rod
- 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
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a double-direction pressure rigidity seal butterfly valve of a long support structure with rolling friction. Abrasion between a valve rod and a bottom cover can be avoided, the position, relative to a valve base, of a valve plate is fixed, and accordingly good sealing performance is obtained. The double-direction pressure rigidity seal butterfly valve of the long support structure with rolling friction comprises the bottom cover which is in sealing connection with a valve body. One end of the valve rod extends into the valve body. A support is fixedly connected with the valve body. A shoulder table is arranged in the support. A through hole is formed in the shoulder table. The other end of the valve rod penetrates through the through hole and is in transmission connection with a worm and gear device. The valve rod is provided with a pushing pressing part and a supporting part, and the pushing pressing part, the supporting part and the valve rod can be fixed. One face of a first thrust bearing abuts against the upper surface of the shoulder table. The other face of the first thrust bearing abuts against the lower surface of the pushing pressing part. One face of a second thrust bearing abuts against the lower surface of the shoulder table. The other face of the first thrust bearing abuts against the upper surface of the supporting part.
Description
Technical field
The invention belongs to the technical field of Bidirectional pressure butterfly valve, specifically relate to a kind of Bidirectional pressure hard seal butterfly valve.
Background technique
Unidirectional means of press seals butterfly valve is when cutting out, and its butterfly plate is positive must be in the face of the flow direction of medium.Medium only flows to a direction, and the arrow that means the media flow direction will be arranged on valve body, during installation, should note the media flow direction.The butterfly plate of bi-direction consolidation sealing butterfly valve can in the face of or back to the flow direction of medium, without noting the media flow direction, do not mean the arrow of media flow direction on valve body during installation yet.
At present, Bidirectional pressure hard seal butterfly valve on market comprises valve rod, valve body, bottom, worm and gear drive unit, valve plate, black box, bottom is connected with valve seal, valve rod be located on valve body and an end bearing of valve rod on bottom, the other end of valve rod and worm and gear drive unit are in transmission connection, valve plate is fixedly connected with valve rod, and valve plate forms and is tightly connected by black box and valve body.In use, the stressed valve rod that is greater than the one-way sealing butterfly valve of the valve rod of bidirectional sealed butterfly valve, thus while designing, the butterfly valve of same diameter, pressure, the bidirectional sealed butterfly valve shank diameter is larger than the stem diameter of one-way sealing butterfly valve.Be understandable that, the butterfly valve of same diameter, pressure, the spool weight of the spool weight ratio one-way sealing butterfly valve of bidirectional sealed butterfly valve is large, therefore, has aggravated the wearing and tearing that cause because of sliding friction between valve rod and bottom.Due to wearing and tearing after, there will be gap between valve rod and bottom, when reverse pressure is larger, with respect to the position of valve seat, valve plate stem shaft upwards lift or under fall, make the partially sealed inefficacy of the face that is sealed and matched of seal element.
Summary of the invention
The purpose of this invention is to provide a kind of long stent structure band sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, it can avoid between valve rod and bottom occurring wearing and tearing, the valve plate of valve plate is fixed, to obtain good sealability with respect to the position of valve seat.
The object of the present invention is achieved like this:
A kind of long stent structure band sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, comprise valve rod, valve body, worm gear device, bottom, bottom is connected with valve seal, one end of valve rod stretches in valve body, it is characterized in that: also comprise support, the first thrust bearing, the second thrust bearing, described support is fixedly connected with valve body, in described support, shoulder is arranged, be provided with through hole on this shoulder, the other end of valve rod is in transmission connection through this through hole and worm gear device, be provided with top splenium and the support that can fix with this valve rod on valve rod, the one side of the first thrust bearing is tight against on the upper surface of shoulder, the another side of the first thrust bearing is tight against the lower surface at the top splenium, the one side of the second thrust bearing is tight against on the lower surface of shoulder, the another side of the second thrust bearing is tight against on the upper surface of support.
On the basis of such scheme and as the preferred version of such scheme: described top splenium is formed by the first top splenium nut and the second top splenium nut, this the first top splenium nut all is connected with threaded stem with the second top splenium nut and the first top splenium nut is tight against on the second top splenium nut, and the second splenium nut top, top is pressed on the first thrust bearing.
On the basis of such scheme and as the preferred version of such scheme: described support is formed by the first support nut and the second support nut, this the first support nut all is connected with threaded stem with the second support nut and the first support nut and the second support nut are tight against, and the second support nut is tight against below the second thrust bearing.
On the basis of such scheme and as the preferred version of such scheme: described the first thrust bearing is single direction thrust ball bearing, and this single direction thrust ball bearing and valve rod form Spielpassung.
On the basis of such scheme and as the preferred version of such scheme: described the second thrust bearing is single direction thrust ball bearing, and this single direction thrust ball bearing and valve rod form Spielpassung.
The present invention's outstanding and useful technique effect compared to existing technology is:
1, of the present invention is the working method of sliding friction by original valve rod with respect to valve gap by this structure, and changing over is the working method of rolling friction, has greatly reduced wearing and tearing; Also guarantee valve rod mounting point steadiness in the axial direction simultaneously, oppositely pressing when larger, in case valve plate stem shaft upwards lift or under fall, thereby guarantee Bidirectional pressure hard seal butterfly valve sealability.Moreover, adopting this structure, valve rod suffered power on gravitational direction can be married again on support, to reduce the friction wear between the sealing gasket on valve rod and bottom.
2, the long stent structure band of the present invention sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, the first top splenium nut, the second top splenium nut, the first support nut and the second support nut structure have also been adopted, make when a small amount of wearing and tearing of thrust bearing appearance, can also cross adjusting nut, to eliminate the matching gap occurred after the thrust bearing wearing and tearing, avoided existence because of this gap make valve plate by strong oppositely press lift or under fall to cause seal failure, extend the working life of this Bidirectional pressure hard seal butterfly valve, reduced maintenance cost simultaneously.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the enlarged view at I place in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described, referring to Fig. 1-Fig. 2;
The roll sassafras Bidirectional pressure hard seal butterfly valve that rubs of the long stent structure band provided of the present embodiment comprises valve rod 1, valve body 2, worm gear device 3, bottom 4, support 5, the first thrust bearing 6, the second thrust bearing 7.
Wherein, bottom 4 is tightly connected with valve body 2, and an end of valve rod 1 stretches in valve body 2.Described support 5 is fixedly connected with valve body 2, in described support 5, shoulder 51 is arranged, and on this shoulder, is provided with through hole, and the other end of valve rod 1 is in transmission connection through this through hole and worm gear device 3.Be provided with top splenium 8 and support 9 on valve rod 1, in use, top splenium 8, support 9 all and between valve rod 1 are fixed.The one side of the first thrust bearing 6 is tight against on the upper surface of shoulder 51, and the another side of the first thrust bearing 6 is tight against the lower surface at top splenium 8, that is to say, splenium top in top is pressed on the first thrust bearing; The one side of the second thrust bearing 7 is tight against on the lower surface of shoulder 51, and the another side of the second thrust bearing 7 is tight against on the upper surface of support 9, and in other words, support also pushes up and is pressed on the second thrust bearing; By this structure, by original valve rod, with respect to valve gap, be the working method of sliding friction, changing over is the work of rolling friction, has greatly reduced wearing and tearing.Valve rod by the first thrust bearing, the second thrust bearing, top splenium and support with axially circumferentially rotationally mode be supported on shoulder.Be understandable that, on the axial direction of valve rod, by this structure, that valve rod is firmly rack-mount, guarantee valve rod mounting point steadiness in the axial direction, when oppositely pressure is larger, in case valve plate stem shaft upwards lift or under fall, thereby guarantee Bidirectional pressure hard seal butterfly valve sealability.Moreover, adopting this structure, valve rod suffered power on gravitational direction can be married again on support, to reduce the friction wear between the sealing gasket on valve rod and bottom.
It should be noted that, the first top splenium nut 81, the second top splenium nut 82, the first support nut 91 and the second support nut 92 all adopt the nut of existing structure, for ease of difference, it are defined as to the first top splenium nut 81, the second top splenium nut 82, the first support nut 91 and the second support nut 92.
In the present embodiment, as shown in Figure 2, top splenium 8 is formed by the first top splenium nut 81 and the second top splenium nut 82.The second top splenium nut 82 tops are pressed on the first thrust bearing 6.Position with respect to support on valve rod has outside thread, and the first top splenium nut 81 and the second top splenium nut 82 all are threaded with valve rod 1 and the first top splenium nut 81 is tight against on the second top splenium nut 82, and it has the effect of retaining; Simultaneously, when a small amount of wearing and tearing appear in the first thrust bearing, can also be able to cross and adjust the first top splenium nut and the second top splenium nut, to eliminate the matching gap occurred after its wearing and tearing, avoided existence because of this gap make valve plate by strong oppositely press lift or under fall to cause seal failure, extend the working life of this Bidirectional pressure hard seal butterfly valve, reduced maintenance cost simultaneously.In like manner, in the present embodiment, as shown in Figure 2, described support 9 is formed by the first support nut 91 and the second support nut 92, and the second support nut 92 is tight against below the second thrust bearing 7.Position with respect to support on valve rod has outside thread, and this first support nut 91 all with threaded stem, is connected with the second support nut 92 and the first support nut tight 91 is against the second support nut 92 belows.
In the present embodiment, described the first thrust bearing 6 is single direction thrust ball bearing, and this single direction thrust ball bearing and valve rod form Spielpassung.Described the second thrust bearing 7 is single direction thrust ball bearing, and this single direction thrust ball bearing and valve rod form Spielpassung.As the direct distortion of the present embodiment, the first thrust bearing, the second thrust bearing can also adopt thrust ball bearing, taper roller bearing, spherical roller thrust bearing or roller thrust bearing.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalences of doing according to structure of the present invention, shape, principle change, within all should being covered by protection scope of the present invention.
Claims (5)
1. the long stent structure band sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, comprise valve rod, valve body, worm gear device, bottom, bottom is connected with valve seal, one end of valve rod stretches in valve body, it is characterized in that: also comprise support, the first thrust bearing, the second thrust bearing, described support is fixedly connected with valve body, in described support, shoulder is arranged, be provided with through hole on this shoulder, the other end of valve rod is in transmission connection through this through hole and worm gear device, be provided with top splenium and the support that can fix with this valve rod on valve rod, the one side of the first thrust bearing is tight against on the upper surface of shoulder, the another side of the first thrust bearing is tight against the lower surface at the top splenium, the one side of the second thrust bearing is tight against on the lower surface of shoulder, the another side of the second thrust bearing is tight against on the upper surface of support.
2. the long stent structure band according to claim 1 sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, it is characterized in that: described top splenium is formed by the first top splenium nut and the second top splenium nut, this the first top splenium nut all is connected with threaded stem with the second top splenium nut and the first top splenium nut is tight against on the second top splenium nut, and the second splenium nut top, top is pressed on the first thrust bearing.
3. the long stent structure band according to claim 1 sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, it is characterized in that: described support is formed by the first support nut and the second support nut, this the first support nut all is connected with threaded stem with the second support nut and the first support nut and the second support nut are tight against, and the second support nut is tight against below the second thrust bearing.
4. the long stent structure band according to claim 1 sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, it is characterized in that: described the first thrust bearing is single direction thrust ball bearing, this single direction thrust ball bearing and valve rod formation Spielpassung.
5. the long stent structure band according to claim 1 sassafras Bidirectional pressure hard seal butterfly valve that rubs that rolls, it is characterized in that: described the second thrust bearing is single direction thrust ball bearing, this single direction thrust ball bearing and valve rod formation Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397263.6A CN103498943A (en) | 2013-09-04 | 2013-09-04 | Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397263.6A CN103498943A (en) | 2013-09-04 | 2013-09-04 | Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103498943A true CN103498943A (en) | 2014-01-08 |
Family
ID=49864180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310397263.6A Pending CN103498943A (en) | 2013-09-04 | 2013-09-04 | Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103498943A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001132854A (en) * | 1999-11-01 | 2001-05-18 | Denso Corp | Butterfly valve assembling method |
| CN2653259Y (en) * | 2003-09-24 | 2004-11-03 | 明赐东 | Angular travel valve mounting rack |
| US20100270489A1 (en) * | 2009-04-24 | 2010-10-28 | Honeywell International Inc. | Butterfly valve assembly including a bearing assembly for serrated spline constraint |
| CN201687964U (en) * | 2010-04-30 | 2010-12-29 | 重庆华林自控仪表股份有限公司 | Butterfly valve locating structure with external bearings |
| CN202733009U (en) * | 2012-08-09 | 2013-02-13 | 北京艺创阀门制造有限公司 | Flange two-way pressure hard sealing butterfly valve |
| CN203516766U (en) * | 2013-09-04 | 2014-04-02 | 北京艺创阀门制造有限公司 | Long-support-structure bidirectional-pressure hard sealing butterfly valve with rolling friction |
-
2013
- 2013-09-04 CN CN201310397263.6A patent/CN103498943A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001132854A (en) * | 1999-11-01 | 2001-05-18 | Denso Corp | Butterfly valve assembling method |
| CN2653259Y (en) * | 2003-09-24 | 2004-11-03 | 明赐东 | Angular travel valve mounting rack |
| US20100270489A1 (en) * | 2009-04-24 | 2010-10-28 | Honeywell International Inc. | Butterfly valve assembly including a bearing assembly for serrated spline constraint |
| CN201687964U (en) * | 2010-04-30 | 2010-12-29 | 重庆华林自控仪表股份有限公司 | Butterfly valve locating structure with external bearings |
| CN202733009U (en) * | 2012-08-09 | 2013-02-13 | 北京艺创阀门制造有限公司 | Flange two-way pressure hard sealing butterfly valve |
| CN203516766U (en) * | 2013-09-04 | 2014-04-02 | 北京艺创阀门制造有限公司 | Long-support-structure bidirectional-pressure hard sealing butterfly valve with rolling friction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203516766U (en) | Long-support-structure bidirectional-pressure hard sealing butterfly valve with rolling friction | |
| CN106051162B (en) | Shaft floating seal device and application method | |
| CN103410997B (en) | High pressure relief formula double disc parallel seat single-face hard sealing gate valve | |
| CN103498943A (en) | Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction | |
| CN204239784U (en) | A kind of emery wheel modulating valve with emery wheel lubricating structure | |
| CN203770417U (en) | Sealed four-row tapered roller bearing | |
| CN201513179U (en) | Disk cutter used for shield machine | |
| CN203836207U (en) | Mechanical sealing device for stepped shaft | |
| CN203363265U (en) | Top-assembling type hard-sealing eccentric semispherical valve | |
| CN203384390U (en) | Triple eccentric two-way hard sealed butterfly valve | |
| CN201901173U (en) | Novel transition arm | |
| CN103383009A (en) | Pollution-free metal membrane sealed ball valve | |
| CN202118277U (en) | Double-action isolating valve | |
| CN204025370U (en) | A kind of associated sealing arrangement for bearings for noria tensioning roller | |
| CN201599407U (en) | Mechanical seal | |
| CN201496604U (en) | Composite sealing ball valve | |
| CN202867230U (en) | Frictional oil-taking structure of ball for vacuum rotary sealed pump | |
| CN204018369U (en) | Improved high-frequency straight seam welded pipe unit edger roll structure | |
| CN204312752U (en) | Double-eccentric ball valve sealing configuration | |
| CN203784356U (en) | T-shaped elastic valve seat sealing structure of V-shaped adjusting ball valve | |
| CN202691032U (en) | Sealing structure for water turbine spindle | |
| CN203979564U (en) | Three eccentric two-way metallic sealing butterfly valve | |
| CN204344690U (en) | A kind of four-line column roller bearing retainer | |
| CN203363135U (en) | Axial oil seal | |
| CN202520919U (en) | Sealing device of reduction gearbox of pumping unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140108 |