CN108999973A - A kind of sealing device of threaded connection - Google Patents
A kind of sealing device of threaded connection Download PDFInfo
- Publication number
- CN108999973A CN108999973A CN201811183529.6A CN201811183529A CN108999973A CN 108999973 A CN108999973 A CN 108999973A CN 201811183529 A CN201811183529 A CN 201811183529A CN 108999973 A CN108999973 A CN 108999973A
- Authority
- CN
- China
- Prior art keywords
- filler
- screw rod
- sealing device
- cabinet
- filler seat
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 48
- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000003566 sealing material Substances 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to a kind of sealing device of threaded connection, including screw rod and turbine box, be formed on the cabinet of turbine box with the mutually matched screw hole of screw rod, between cabinet and screw rod be equipped with sealing device；The mainly described sealing device includes filler, filler seat, pressing ring and clamp nut；Wherein filler seat tool has the inner cavity of U-shaped cylinder, and bottom centre is formed with circular hole, and filler seat and screw rod are concentrically mounted on cabinet, and the diameter of circular hole is greater than screw flight outer diameter；Filler uses soft sealing material, is mounted in the inner cavity of filler seat by pressing ring and clamp nut, and the internal chamber wall activity of the periphery and filler seat of pressing ring cooperates.Realize the static seal between screw rod and cabinet, good seal performance adjusts the thread sealing device of the high temperature such as screw, power station high-temperature check valve plug screw, high pressure and constant pressure operating condition suitable for seabed turbine-driven set.
Description
Technical field
The present invention relates to a kind of sealing devices, especially with regard to a kind of sealing device of regular screw threads bindiny mechanism.This hair
The bright spiral shell that the high temperature such as screw, power station high-temperature check valve plug screw, high pressure and constant pressure operating condition are adjusted suitable for seabed turbine-driven set
Line sealing device.
Background technique
It is general using limit of the screw as turbine moving limit position is adjusted on turbine-driven set, for being used for
Seabed turbine-driven set, being typically provided constant pressure mechanism makes turbine box internal and external pressure balance, and limit adjusts screw and turbine box
Sealing between screw hole is easy to leak in the long-term use, leads to turbine-driven set cisco unity malfunction.
Summary of the invention
The present invention provides that a kind of good seal performance, sealing grade is high, zero leakage can be achieved for the prior art is defective
Threaded connection sealing device.
Technical solution of the present invention includes screw rod and turbine box, is formed on the cabinet of turbine box and the mutually matched spiral shell of screw rod
Hole is equipped with sealing device between cabinet and screw rod；The mainly described sealing device includes filler, filler seat, pressing ring and compresses spiral shell
It is female；Wherein filler seat tool has the inner cavity of U-shaped cylinder, and bottom centre is formed with circular hole, and filler seat and screw rod are concentrically mounted on cabinet
On, the diameter of circular hole is greater than screw flight outer diameter；Filler uses soft sealing material, is mounted on filler by pressing ring and clamp nut
In the inner cavity of seat, the internal chamber wall activity of the periphery and filler seat of pressing ring cooperates.
In above technical scheme, radial anchor ring between the U-shaped cylinder bore wall and its circular hole inner hole wall of filler seat
Area of the area at least equal to the radial anchor ring where circular hole inner hole wall and outer screw diameter between cylindrical surface.
In above technical scheme, butterfly spring is set between clamp nut and pressing ring.
In above technical scheme, interior hexagonal adjustment hole is arranged in screw rod one end.
It is an advantage of the invention that between screw rod and cabinet setting be made of filler seat, filler, pressing ring, clamp nut it is close
Filler compression is mounted between screw flight and cabinet by clamp nut, is realized quiet between screw rod and cabinet by seal apparatus
Sealing, good seal performance；Especially when high-pressure undersea basic skill or training makees, it can be achieved that screw rod under the operating condition without pressure difference inside and outside worm gear box body
The zero leakage between cabinet improves the reliability and service life of the work of worm gear drive seabed.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The sealing device of threaded connection as shown in Figure 1, including worm gear case and screw rod 4 are made on the cabinet 1 of turbine box
Have with the mutually matched screw hole of screw rod 4, sealing device is equipped between cabinet 1 and screw rod 4, worm-drive machine is equipped in worm gear case
Structure realizes the control to Worm wheel transmission mechanism limit drive position, reaches the limit of valve open/close position by adjusting screw rod 4
Position；It is characterized in that the sealing device includes filler 3, filler seat 2, pressing ring 5 and clamp nut 6；Wherein filler seat 2 has U-shaped
The inner cavity of cylinder, bottom centre are formed with circular hole, and filler seat 2 and screw rod 4 are concentrically mounted on cabinet 1,2 circular hole of filler seat it is straight
Diameter D2 is greater than the major diameter of thread d of screw rod 4；Filler 3 uses soft sealing material, is mounted on filler seat 2 by pressing ring 5 and clamp nut 6
Inner cavity in, filler 3 according to working temperature and medium character using materials such as rubber, ptfe plastic, soft graphite, carbon fibers,
The internal chamber wall activity of the periphery and filler seat 2 of pressing ring 5 cooperates, 5 inner hole wall of pressing ring and 4 threaded exterior end clearance fit of screw rod, pressure
Circle 5 is mounted on the filler 3 of 2 inner cavity of filler seat by the compression of clamp nut 6, and clamp nut 6 compresses pressing ring 5 and is pressed on filler 3
Between 1 plane of screw thread and cabinet of screw rod 4, the static seal between cabinet 1 and screw rod 4 is realized, solves Worm wheel transmission mechanism
Under the high pressure working environment of seabed, the constant pressure sealing of cabinet 1 and 4 threaded connection place of screw rod is easy the technical problem of leakage.It is described
Constant pressure sealing refers to sealing of 3 two sides of filler without pressure differential condition, because of the worm-drive machine used in seabed, it is desirable that its worm gear case
Inside and outside pressure balance, this operating condition of the sealing device two sides without pressure difference most easily leak.
The area of radial anchor ring between the U-shaped cylinder bore wall and its circular hole inner hole wall of filler seat 2 is at least equal to circular hole
The area of radial anchor ring between cylindrical surface where the outside diameter d of inner hole wall and screw rod 4, i.e., U-shaped cylinder bore wall diameter D1 and its
Difference of the difference of Circularhole diameter D2 at least equal to the outside diameter d of U-shaped cylinder Circularhole diameter D2 and screw rod 4.Where 4 outside diameter d of screw rod
Cylindrical surface refers to that diameter is equal to the cylindrical surface concentric with screw rod 4 of 4 outside diameter d of screw rod.When pressing ring 5 compresses filler 3, it is located at U-shaped
The radial-deformation that filler 3 on radial anchor ring between cylinder bore wall and circular hole inner hole wall generates be greater than circular hole inner hole wall with
Filler 3 is more effectively compressed the screw thread and its and case for getting into screw rod 4 by the radial-deformation of the filler 3 between 4 outside diameter d of screw rod
In gap between body 1.
Butterfly spring 7 is set between clamp nut 6 and pressing ring 5, improves shockproof, locking functions and automatic compensation sealing filler 3
Loss.
Interior hexagonal adjustment hole is arranged in the adjustable side of screw rod 4.
Claims (3)
1. a kind of sealing device of threaded connection, including worm gear case and screw rod (4), be formed on the cabinet (1) of turbine box with
Screw rod (4) mutually matched screw hole is equipped with sealing device between cabinet (1) and screw rod (4)；It is characterized in that the sealing device packet
Include filler (3), filler seat (2), pressing ring (5) and clamp nut (6)；Wherein filler seat (2) has the inner cavity of U-shaped cylinder, bottom
Portion center is formed with circular hole, and filler seat (2) and screw rod (4) are concentrically mounted on cabinet (1), the diameter (D2) of filler seat (2) circular hole
Greater than the major diameter of thread (d) of screw rod (4)；Filler (3) uses soft sealing material, and is mounted on by pressing ring (5) and clamp nut (6)
In the inner cavity of filler seat (2), the periphery of pressing ring (5) and the internal chamber wall activity of filler seat (2) cooperate, and pressing ring (5) is by compression spiral shell
Female (6) compress and are mounted on the filler (3) of filler seat (2) inner cavity.
2. the sealing device of threaded connection according to claim 1, it is characterized in that in the U-shaped cylinder of filler seat (2)
Outer diameter (d) institute of the area of radial anchor ring between cavity wall and its circular hole inner hole wall at least equal to circular hole inner hole wall and screw rod (4)
The area of radial anchor ring between cylindrical surface.
3. the sealing device of threaded connection according to claim 1 or 2, it is characterized in that in clamp nut (6) and pressure
It encloses between (5) and butterfly spring (7) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183529.6A CN108999973A (en) | 2018-10-11 | 2018-10-11 | A kind of sealing device of threaded connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183529.6A CN108999973A (en) | 2018-10-11 | 2018-10-11 | A kind of sealing device of threaded connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108999973A true CN108999973A (en) | 2018-12-14 |
Family
ID=64590111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811183529.6A Pending CN108999973A (en) | 2018-10-11 | 2018-10-11 | A kind of sealing device of threaded connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108999973A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT211617B (en) * | 1958-12-10 | 1960-10-25 | Soennichsen Roervalseverk | Pipe fitting for water pipes |
| JP2001116460A (en) * | 1999-10-18 | 2001-04-27 | Toshiba Corp | Sealing device of rotary furnace |
| US6814554B1 (en) * | 2003-06-04 | 2004-11-09 | Rechi Precision Co., Ltd. | Vortex compressor |
| JP2009191880A (en) * | 2008-02-12 | 2009-08-27 | Kyushu Univ | Pipe joint |
| CN201547287U (en) * | 2009-07-21 | 2010-08-11 | 武汉大禹阀门制造有限公司 | Female connection soft-sealing gate valve |
| CN202360881U (en) * | 2011-11-03 | 2012-08-01 | 上海百图低温阀门有限公司 | Combination seal of spring and pressing sleeve |
| CN205559843U (en) * | 2016-04-27 | 2016-09-07 | 杭州金山仪表阀业有限公司 | High platform filler closing device of ball valve |
| CN106246919A (en) * | 2016-10-09 | 2016-12-21 | 中国核动力研究设计院 | One prevents pretightning force from relaxing and easily detachable packing seal structure |
| CN206983363U (en) * | 2017-08-02 | 2018-02-09 | 上海格兰克林（集团）有限公司 | A kind of oil saving structure of air compressor |
| CN207064702U (en) * | 2017-08-15 | 2018-03-02 | 高邮市高农机械配件有限公司 | A kind of Subzero valve |
| CN208951292U (en) * | 2018-10-11 | 2019-06-07 | 浙江大工阀门驱动有限公司 | The sealing device of threaded connection |
-
2018
- 2018-10-11 CN CN201811183529.6A patent/CN108999973A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT211617B (en) * | 1958-12-10 | 1960-10-25 | Soennichsen Roervalseverk | Pipe fitting for water pipes |
| JP2001116460A (en) * | 1999-10-18 | 2001-04-27 | Toshiba Corp | Sealing device of rotary furnace |
| US6814554B1 (en) * | 2003-06-04 | 2004-11-09 | Rechi Precision Co., Ltd. | Vortex compressor |
| JP2009191880A (en) * | 2008-02-12 | 2009-08-27 | Kyushu Univ | Pipe joint |
| CN201547287U (en) * | 2009-07-21 | 2010-08-11 | 武汉大禹阀门制造有限公司 | Female connection soft-sealing gate valve |
| CN202360881U (en) * | 2011-11-03 | 2012-08-01 | 上海百图低温阀门有限公司 | Combination seal of spring and pressing sleeve |
| CN205559843U (en) * | 2016-04-27 | 2016-09-07 | 杭州金山仪表阀业有限公司 | High platform filler closing device of ball valve |
| CN106246919A (en) * | 2016-10-09 | 2016-12-21 | 中国核动力研究设计院 | One prevents pretightning force from relaxing and easily detachable packing seal structure |
| CN206983363U (en) * | 2017-08-02 | 2018-02-09 | 上海格兰克林（集团）有限公司 | A kind of oil saving structure of air compressor |
| CN207064702U (en) * | 2017-08-15 | 2018-03-02 | 高邮市高农机械配件有限公司 | A kind of Subzero valve |
| CN208951292U (en) * | 2018-10-11 | 2019-06-07 | 浙江大工阀门驱动有限公司 | The sealing device of threaded connection |
Non-Patent Citations (1)
| Title |
|---|
| 陈乙崇: "《搅拌装备设计》", vol. 1, 30 November 1985, 上海科学技术出版社, pages: 262 * |
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