CN108278410A - Lift the valve stem nut drive mechanism of valve - Google Patents
Lift the valve stem nut drive mechanism of valve Download PDFInfo
- Publication number
- CN108278410A CN108278410A CN201810225792.0A CN201810225792A CN108278410A CN 108278410 A CN108278410 A CN 108278410A CN 201810225792 A CN201810225792 A CN 201810225792A CN 108278410 A CN108278410 A CN 108278410A
- Authority
- CN
- China
- Prior art keywords
- valve stem
- valve
- stem nut
- bearing
- rolling bearing
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 36
- 230000003028 elevating effect Effects 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 8
- 239000004519 grease Substances 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims 1
- 235000011613 Pinus brutia Nutrition 0.000 claims 1
- 241000018646 Pinus brutia Species 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0497—Screw mechanisms
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of valve stem nut drive mechanism of lifting valve, trapezoidal thread is machined on valve rod and valve stem nut, valve rod top is cased with handwheel, and handwheel drives valve stem nut rotation, carries out the elevating movement of valve with ovable valve stem by valve stem nut；Set is divided into loose ring and collar there are two rolling bearing to valve stem nut on rolling bearing above and below, and the rolling bearing loose ring of lower part is under, and collar is upper, and the rolling bearing loose ring on top is upper, and collar is under；Boss structure is equipped on valve stem nut；The lower face of boss structure is fitted close with the collar of lower part rolling bearing, and the upper surface of boss structure is fitted close with the collar of top rolling bearing；There is gap between the loose ring part of rolling bearing and bearing.The valve stem nut drive mechanism that the present invention lifts valve can play the role of mistake proofing installation, can play dustproof effect, can provide lubrication to T shape screw-driven pairs, provide an end-play space to bearing, prevent from being killed.
Description
Technical field
The present invention relates to a kind of valve stem nut drive mechanisms of lifting valve.
Background technology
The valve stem nut drive mechanism of traditional lifting valve, frame upper are equipped with bearing and valve stem nut, and bearing is logical
It crosses screw thread bearing gland to fix, bearing is lubricated by injecting grease in lubricating cup.Such structure can not ensure axis first
Whether correct hold installation direction, once mistake installation, will be unable to play correct mistake.Grease only can lubricate bearing can not
T shape screw threads are lubricated, T shape screw-driven pairs are easy to be worn, after bearing gland fixing bearing, bearing axial direction quilt
It compresses, without any gap, is easy to happen extremely phenomenon.
Invention content
The purpose of the present invention is to provide a kind of valve stem nut drive mechanisms of the lifting valve of favorable working performance.
Technical solution of the invention is：
A kind of valve stem nut drive mechanism of lifting valve, it is characterized in that：Including holder, rolling bearing, lubricating cup, dustband, valve
Trapezoidal thread is machined on stem nut, valve rod, handwheel, valve rod and valve stem nut, valve rod top is cased with handwheel, handwheel band ovable valve stem
Nut rotation is carried out the elevating movement of valve by valve stem nut with ovable valve stem；Valve stem nut is covered above and below there are two rolling bearing,
It is divided into loose ring and collar on rolling bearing, the rolling bearing loose ring of lower part is under, and upper, the rolling bearing loose ring on top exists for collar
On, collar is under；Boss structure is equipped on valve stem nut, the rolling bearing on top, the rolling bearing of lower part are separately positioned on
Top, the lower section of the boss structure；The lower face of boss structure is fitted close with the collar of lower part rolling bearing, boss structure
The collar of upper surface and top rolling bearing be fitted close；There is gap between the loose ring part of rolling bearing and bearing.
Dustband is installed on holder, dust is prevented to be entered in stent cavity body by holder.
It is provided with cross oiling groove on valve stem nut, by injecting grease, both bearing was lubricated, while grease passes through
Cross recess has entered at valve rod T-type screw thread, is lubricated to T-type screw thread.
Bearing is compressed by bearing gland, and be provided with slot in bearing gland is provided with preset clearance with bearing upper end, ensure that axis
The end-play held, prevents bearing seizure in slot.
The valve stem nut drive mechanism that the present invention lifts valve can play the role of mistake proofing installation, can play dust-proof work
With, can to T shape screw-driven pairs provide lubrication, provide an end-play space to bearing, prevent from being killed.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Specific implementation mode
A kind of valve stem nut drive mechanism of lifting valve（Fig. 1）, by holder 1, rolling bearing 2, lubricating cup 3, dustband 4,
Valve stem nut 5, valve rod 6, handwheel 7 are composed, and are machined with trapezoidal thread on valve rod 6 and valve stem nut 5,6 top of valve rod is cased with
Handwheel 7, handwheel 7 drive valve stem nut 5 to rotate, and carry out the elevating movement of valve with ovable valve stem 6 by valve stem nut 5.Valve stem nut 5
Upper and lower sleeve is divided into loose ring and collar, under, collar exists the rolling bearing loose ring of lower part there are two rolling bearing 2 on rolling bearing 2
On, the rolling bearing loose ring on top is upper, and collar is under.When valve rod 6 rises, upper bearing plays a major role, when valve rod declines,
Lower bearing plays a major role.Boss structure, the rolling bearing on top, the rolling bearing difference of lower part are equipped on valve stem nut
It is arranged in the top of the boss structure, lower section；The lower face of boss structure is fitted close with the collar of lower part rolling bearing, convex
The upper surface of platform structure is fitted close with the collar of top rolling bearing；There is larger gap between loose ring part and bearing, ensures
The correctness of bearing installation.Once if setup error, bearing will not have corresponding effect, and the keying for increasing valve is turned round
Square, such structure can play the function of mistake proofing installation.Dustband 4 is installed on holder, prevent dust by holder into
Enter into stent cavity body, influences the greasy property of bearing.Cross oiling groove 8 is provided on valve stem nut 5, by injecting grease, both
Bearing is lubricated, while grease has been entered by cross recess at valve rod T-type screw thread, is lubricated T-type screw thread,
Prevent the generation of abrasion.Bearing is compressed by bearing gland, and be provided with slot in bearing gland is provided with preset clearance with bearing upper end,
It ensure that the end-play of bearing, it is therefore prevented that bearing seizure is in slot.
Claims (4)
1. a kind of valve stem nut drive mechanism of lifting valve, it is characterized in that：Including holder, rolling bearing, lubricating cup, dustband,
Trapezoidal thread is machined on valve stem nut, valve rod, handwheel, valve rod and valve stem nut, valve rod top is cased with handwheel, and handwheel drives valve
Stem nut rotates, and carries out the elevating movement of valve with ovable valve stem by valve stem nut；There are two the axis of rolling for set above and below for valve stem nut
It holds, loose ring and collar is divided on rolling bearing, the rolling bearing loose ring of lower part is under, and collar is in upper, the rolling bearing pine on top
Circle is upper, and collar is under；Boss structure is equipped on valve stem nut, the rolling bearing on top, the rolling bearing of lower part are set respectively
It sets in the top of the boss structure, lower section；The lower face of boss structure is fitted close with the collar of lower part rolling bearing, boss
The upper surface of structure is fitted close with the collar of top rolling bearing；There is gap between the loose ring part of rolling bearing and bearing.
2. the valve stem nut drive mechanism of lifting valve according to claim 1, it is characterized in that：It is equipped on holder dust-proof
Circle prevents dust from being entered in stent cavity body by holder.
3. the valve stem nut drive mechanism of lifting valve according to claim 1, it is characterized in that：Ten are provided on valve stem nut
Word oiling groove both lubricated bearing, while grease has entered valve rod T-type spiral shell by cross recess by injecting grease
At line, T-type screw thread is lubricated.
4. the valve stem nut drive mechanism of lifting valve according to claim 1, it is characterized in that：Bearing passes through bearing gland
It compresses, be provided with slot in bearing gland is provided with preset clearance with bearing upper end, ensure that the end-play of bearing, prevents bearing seizure
In slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225792.0A CN108278410A (en) | 2018-03-19 | 2018-03-19 | Lift the valve stem nut drive mechanism of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225792.0A CN108278410A (en) | 2018-03-19 | 2018-03-19 | Lift the valve stem nut drive mechanism of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108278410A true CN108278410A (en) | 2018-07-13 |
Family
ID=62810020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810225792.0A Pending CN108278410A (en) | 2018-03-19 | 2018-03-19 | Lift the valve stem nut drive mechanism of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108278410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538816A (en) * | 2018-11-29 | 2019-03-29 | 德维阀门铸造（苏州）股份有限公司 | A kind of valve interface structure connecting multiple drive |
| CN109854810A (en) * | 2018-12-24 | 2019-06-07 | 氟络塞尔特种阀门(苏州)有限公司 | A kind of valve with defrosting function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696737A (en) * | 2009-10-12 | 2010-04-21 | 昆山昆阀有限公司 | Valve-stem nut lubrication device |
| CN201963901U (en) * | 2011-03-28 | 2011-09-07 | 杜春东 | High-temperature and high-pressure stop valve |
| CN202065549U (en) * | 2010-11-29 | 2011-12-07 | 上海华通阀门有限公司 | Lubrication mechanism with threads with guiding effect of lifting valve stem |
| CN203322327U (en) * | 2013-06-17 | 2013-12-04 | 胡相兰 | Sealed type hand wheel driving plate valve |
| CN204061956U (en) * | 2014-08-11 | 2014-12-31 | 天津百利展发集团有限公司 | A kind of valve rack drive mechanism |
| CN204512459U (en) * | 2015-03-16 | 2015-07-29 | 宁波埃美柯铜阀门有限公司 | A kind of valve stem elevating type stop valve |
| CN104879511A (en) * | 2015-05-26 | 2015-09-02 | 大丰市南亚阀门有限公司 | Angle stop valve |
| CN208041288U (en) * | 2018-03-19 | 2018-11-02 | 江苏神通阀门股份有限公司 | Lift the valve stem nut drive mechanism of valve |
-
2018
- 2018-03-19 CN CN201810225792.0A patent/CN108278410A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696737A (en) * | 2009-10-12 | 2010-04-21 | 昆山昆阀有限公司 | Valve-stem nut lubrication device |
| CN202065549U (en) * | 2010-11-29 | 2011-12-07 | 上海华通阀门有限公司 | Lubrication mechanism with threads with guiding effect of lifting valve stem |
| CN201963901U (en) * | 2011-03-28 | 2011-09-07 | 杜春东 | High-temperature and high-pressure stop valve |
| CN203322327U (en) * | 2013-06-17 | 2013-12-04 | 胡相兰 | Sealed type hand wheel driving plate valve |
| CN204061956U (en) * | 2014-08-11 | 2014-12-31 | 天津百利展发集团有限公司 | A kind of valve rack drive mechanism |
| CN204512459U (en) * | 2015-03-16 | 2015-07-29 | 宁波埃美柯铜阀门有限公司 | A kind of valve stem elevating type stop valve |
| CN104879511A (en) * | 2015-05-26 | 2015-09-02 | 大丰市南亚阀门有限公司 | Angle stop valve |
| CN208041288U (en) * | 2018-03-19 | 2018-11-02 | 江苏神通阀门股份有限公司 | Lift the valve stem nut drive mechanism of valve |
Non-Patent Citations (1)
| Title |
|---|
| 蒋召杰: "《初级装配钳工技术》", 天津科学技术出版社, pages: 173 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538816A (en) * | 2018-11-29 | 2019-03-29 | 德维阀门铸造（苏州）股份有限公司 | A kind of valve interface structure connecting multiple drive |
| CN109854810A (en) * | 2018-12-24 | 2019-06-07 | 氟络塞尔特种阀门(苏州)有限公司 | A kind of valve with defrosting function |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20180713 |