CN209054091U - Differential balance block valve - Google Patents
Differential balance block valve Download PDFInfo
- Publication number
- CN209054091U CN209054091U CN201821639158.3U CN201821639158U CN209054091U CN 209054091 U CN209054091 U CN 209054091U CN 201821639158 U CN201821639158 U CN 201821639158U CN 209054091 U CN209054091 U CN 209054091U
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- CN
- China
- Prior art keywords
- valve
- auxiliary
- valve core
- core
- clutch
- 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.)
- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a kind of differential balance block valves, including valve body, valve deck, valve rod and spool, it is characterized in that spool is made of main valve plug and auxiliary valve core two parts, main valve plug is connected to valve rod lower end, its bottom and valve body and valve seat, which are formed, to be sealed, top is equipped with auxiliary valve core, sealing state is remained between the two, auxiliary valve core covers on valve rod, the cartridge exterior on auxiliary valve core top is provided with screw thread, it is meshed with the internal screw thread on valve deck, it is connected between valve rod and valve deck for trapezoidal thread, auxiliary valve core and valve deck cooperate, valve rod and two sections of screw threads that valve deck cooperatively forms are poor equipped with lead, clutch is provided with below auxiliary valve core, clutch is arranged on valve rod, and it is servo-actuated with valve rod, the upper engaging tooth of clutch is arranged on auxiliary valve core, auxiliary valve core, which is in, by clutch connects or disconnects two states with valve rod.Its main feature is that: it is not only simple in structure, is small in size, is light-weight, but also significantly reducing the torque of valve switch, facilitating operation, improve work efficiency.
Description
Technical field
The utility model patent is related to a kind of valve, especially a kind of differential balance block valve.
Background technique
Currently, the general requirement of the corresponding block valve being used in ship pipeline system is: small in size, light-weight, occupy sky
Between it is small, while it is small, easy to operate, high-efficient also to have switching torque.The spool of existing shut-off valve and valve seat cooperation are real
It now seals, spool needs while bearing the pressure and sealing reaction force of medium, especially applies in the higher work of pressure medium
Under the conditions of condition, torque when open and close valve can be significantly increased, and operating efficiency is low and causes high effort for.In order to facilitate valve open/close behaviour
Make, common solution is to install deceleration mechanism additional in valve system, and to reduce switching torque, this will lead to the increasing of valve volume
Greatly, weight increases, and takes up space big, and the switch operating time increases, the decline of valve overall performance, thus is difficult to meet modern ships
Pipe-line system working condition requirement.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, provide it is a kind of it is small in size, light-weight, torque is low,
The differential balance block valve that work efficiency is high.
Purpose of the utility model is realized as follows: a kind of differential balance block valve, including valve body, valve deck, valve rod and
Spool, it is characterised in that spool is made of main valve plug and auxiliary valve core two parts, and main valve plug is connected to valve rod lower end, bottom and valve
Body valve seat forms sealing, and top is equipped with auxiliary valve core, remains that sealing state, auxiliary valve core cover on valve rod between the two, secondary valve
The cartridge exterior on core top is provided with screw thread, is meshed with the internal screw thread on valve deck, connects between valve rod and valve deck for trapezoidal thread
It connects, auxiliary valve core and two sections of screw threads that valve deck cooperates, valve rod and valve deck cooperatively form are poor equipped with lead, are provided with below auxiliary valve core
Clutch, clutch are arranged on valve rod, and servo-actuated with valve rod, and the upper engaging tooth of clutch is arranged on auxiliary valve core, by from
Clutch is in auxiliary valve core to connect or disconnect two states with valve rod.
The spool is made of cylinder-shaped main valve plug and the sleeved disc auxiliary valve core of top band, the circle of main valve plug
Cylinder bottom end and valve body and valve seat, which are formed, to be sealed, and lower section installs casing with center by the dowel being distributed and links into an integrated entity in cylinder,
The disk of auxiliary valve core is located in main valve plug cylinder, is provided with sealing ring between the two, auxiliary valve core can be rotated up and down in cylinder
It moves a certain distance, the cartridge exterior on auxiliary valve core top is provided with screw thread.
The damper of limitation auxiliary valve core displacement is equipped on valve deck at the position opposite with auxiliary valve core top.
The lead difference of two sections of screw threads is 0.5-1mm.
The utility model is designed by the fission and differential structure of major and minor spool, realizes spool Self-balancing, i.e.,
Reaction force and the separation of medium thrust will be sealed, seals reaction force acts on main valve plug, medium thrust is in auxiliary valve core
On.It is poor using the lead for being threadedly coupled formation between valve deck and auxiliary valve core sleeve, valve deck and valve rod, postpone the effect of clutch,
It closes and opens moment in valve, there is no interaction force between main valve plug and auxiliary valve core, the medium thrust that auxiliary valve core is subject to passes
It is handed to valve deck, is balanced and offsets by the reaction force of valve deck, only sealing reaction force is transferred to the trapezoidal spiral shell of valve rod by main valve plug
Line, so that controlled valve torque be made to be greatly reduced.
The utility model is characterized in that: being not only simple in structure, being small in size, is light-weight, but also significantly reduces valve and open
The torque of pass facilitates operation, improves work efficiency, and can satisfy modern ships pipe-line system working condition requirement.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the partial enlarged view of Fig. 1.
Specific embodiment
The utility model is further described with reference to the accompanying drawing:
As shown in Figure 1, 2, a kind of differential balance block valve provided by the utility model is mainly by valve body 1, valve deck 6, valve
Bar 5, spool and clutch 4 form.Spool is made of main valve plug 2 and 3 two parts of auxiliary valve core.Main valve plug is cylindrical shape, bottom end
Sealing surface 12 and valve body and valve seat face formed and sealed, three dowels 13 that lower section is distributed by axial symmetry in main valve plug cylinder with
Center installation casing 14 links into an integrated entity, and the bottom end of valve rod is arranged in installation casing, is limited by the nut connecting with valve rod.It is secondary
Spool is made of the disk with centre bore and the upper sleeve 15 being integral with, and auxiliary valve core covers on valve rod, disk position
In top in main valve plug cylinder, it is provided with sealing ring 11 between auxiliary valve core and main valve plug, sealing is equipped between auxiliary valve core and valve rod
Circle 10, auxiliary valve core and main valve plug form closed pressure balance chamber, and medium axial compressive force is born by auxiliary valve core completely, and main valve plug is only
Bear the sealing reaction force that valve body and valve seat applies.Auxiliary valve core sleeve stretches to valve deck top, and cartridge exterior is provided with screw thread,
It is meshed with valve deck internal screw thread.It is connected between valve rod and valve deck using trapezoidal thread, with the common guide thread shape on auxiliary valve core
Poor at lead, lead difference can select between 0.5-1mm, the present embodiment 0.5mm.It is connect on valve deck with auxiliary valve core top
It is provided with damper 7 at position, certain damping force can be applied to auxiliary valve core, after auxiliary valve core and throw-out-of clutch, clutch
The device position of engagement is stablized, and guarantees that valve switch position does not drift about.Sealing ring 9 is equipped between valve deck and auxiliary valve core sleeve, with
Prevent medium from leaking outside.The clutch being arranged below auxiliary valve core is jaw clutch 4, and jaw clutch covers on valve rod,
It is that six sides connect with valve rod, the upper engaging tooth 16 of clutch is arranged on auxiliary valve core.Valve body and valve deck lead to bolt 17 and are tightly connected.
Valve stem tip is equipped with handwheel 8.
The utility model passes through the synergy of lead of screw thread difference and clutch, makes main valve plug and auxiliary valve core in angular speed phase
Meanwhile axial linear velocity between the two is different, in valve shutoff stroke, differential is run major and minor spool together, and valve is closed
Moment, throw-out-of clutch；In valve opening stroke, main valve plug is first run, major and minor after clutch engages tooth engagement up and down
Spool together open by differential operation to valve.Specific operation process is: rotating clockwise the handwheel of valve rod upper end, valve rod drives master
Spool rotating moves downward, and the clutch for being in meshing state drives auxiliary valve core rotation to move downward, for each revolution, main valve plug
Increase 0.5mm with auxiliary valve core moving distance, when distance is more than that clutch teeth is high, throw-out-of clutch, auxiliary valve core no longer rotates,
Major and minor valve core chamber does not have direct active force from this, and after valve rod continues to rotate a circle, valve is closed.Rotation hand wheel counterclockwise, valve
Bar drives main valve plug rotation to run up, and operation to clutch engagement drives auxiliary valve core to be run up together to valve opening.By
The sealing force for only having main valve plug to bear when valve is in closed state is transmitted on valve rod, and the medium thrust that auxiliary valve core is born
Torque when being not transferred to valve rod, therefore significantly reducing valve switch, it is easy to operate, it is time saving and energy saving.
Claims (4)
1. a kind of differential balance block valve, including valve body, valve deck, valve rod and spool, it is characterised in that spool is by main valve plug and pair
Spool two parts composition, main valve plug are connected to valve rod lower end, and bottom and valve body and valve seat, which are formed, to be sealed, and top is equipped with auxiliary valve core,
Remain that sealing state, auxiliary valve core cover on valve rod between the two, the cartridge exterior on auxiliary valve core top is provided with screw thread, with valve
The internal screw thread covered is meshed, and connects between valve rod and valve deck for trapezoidal thread, and auxiliary valve core cooperates with valve deck, valve rod and valve deck are matched
It is poor equipped with lead to close the two sections of screw threads formed, clutch is provided with below auxiliary valve core, clutch is arranged on valve rod, and and valve
Bar is servo-actuated, and the upper engaging tooth of clutch is arranged on auxiliary valve core, is in auxiliary valve core by clutch and connects or disconnects with valve rod
Two states.
2. a kind of differential balance block valve according to claim 1, it is characterised in that the spool is main by cylindrical shape
Spool and the sleeved disc auxiliary valve core of top band are constituted, and the cylinder bottom end of main valve plug and valve body and valve seat are formed and sealed, cylinder
Interior lower section installs casing with center by the dowel being distributed and links into an integrated entity, and the disk of auxiliary valve core is located in main valve plug cylinder
It is interior, it is provided with sealing ring between the two, auxiliary valve core can be rotated up and down in cylinder and move a certain distance, the sleeve on auxiliary valve core top
Outside is provided with screw thread.
3. a kind of differential balance block valve according to claim 1, it is characterised in that opposite with auxiliary valve core top on valve deck
Position at be equipped with limitation auxiliary valve core displacement damper.
4. a kind of differential balance block valve according to claim 1, it is characterised in that the lead of two sections of screw threads is poor
For 0.5-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821639158.3U CN209054091U (en) | 2018-10-10 | 2018-10-10 | Differential balance block valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821639158.3U CN209054091U (en) | 2018-10-10 | 2018-10-10 | Differential balance block valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209054091U true CN209054091U (en) | 2019-07-02 |
Family
ID=67050207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821639158.3U Withdrawn - After Issue CN209054091U (en) | 2018-10-10 | 2018-10-10 | Differential balance block valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209054091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058471A (en) * | 2018-10-10 | 2018-12-21 | 大连船用阀门有限公司 | Differential balance block valve |
-
2018
- 2018-10-10 CN CN201821639158.3U patent/CN209054091U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058471A (en) * | 2018-10-10 | 2018-12-21 | 大连船用阀门有限公司 | Differential balance block valve |
| CN109058471B (en) * | 2018-10-10 | 2024-05-03 | 大连船用阀门有限公司 | Differential balance cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190702 Effective date of abandoning: 20240503 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190702 Effective date of abandoning: 20240503 |