CN107725819A - A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation - Google Patents
A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation Download PDFInfo
- Publication number
- CN107725819A CN107725819A CN201711184225.7A CN201711184225A CN107725819A CN 107725819 A CN107725819 A CN 107725819A CN 201711184225 A CN201711184225 A CN 201711184225A CN 107725819 A CN107725819 A CN 107725819A
- Authority
- CN
- China
- Prior art keywords
- stud
- roller
- valve
- gear
- ball
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 53
- 230000015572 biosynthetic process Effects 0.000 title abstract description 5
- 239000011159 matrix material Substances 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation, belong to forced seal valve field.Include the active runner and member of translational of screw thread engagement, roller mechanism be provided between active runner and member of translational, it is characterised in that：Described roller mechanism includes multiple rollers with a plurality of parallel annular groove（16）, multiple rollers（16）Close arrangement between each other, and multiple rollers（16）Engaged simultaneously with active runner and member of translational.The present invention is using the structure for being abound with roller, the stud and member of translational of stud gear are using the screw thread for having same-handed lift angle, and roller uses the groove structure without lead angle, adjacent roller is arranged along helix produce difference in height in the axial direction, the mutual intrusion of annular groove tooth and movement interference between adjacent roller will not be caused because of the presence of wedge angle, so that being reduced valve volume, it is compact-sized to fully meet low speed, the use demand of top load.
Description
Technical field
A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation, belong to forced seal valve field.
Background technology
In field of fluid control, particularly fluid switch control and close the field that tightness requires harsh, it is desirable to valve
Door can be as small as possible in the state of straight-through generation pressure drop, and the pressure not influenceed by pipeline pressure medium can be provided
Moment of torsion seals, in the prior art, the conventional lift rod-type forced seal ball valve that forced seal valve represents the most, although the structure
Can realize valve it is contactless with valve seat during whole major part is switched, without friction, but be not truly realized no friction.
In addition, present applicant proposed a kind of brand-new forced seal ball-valve structure, Patent No. in 2016
201610355492.5 the structure realizes real friction free technical purpose.
On the basis of the forced seal ball valve CN105921150A of foregoing invention, it is proposed that one kind circulation roller high pressure apparatus
Structure, because the distance that roller jacks up in flap top pressure is only the running clearance of valve ball, play the spiral top pressure of forced seal
Mechanism realizes that force of sliding friction caused by rotation consumes absolutely between two screw threads with the screw thread between stud gear and flap
Most of valve operation moment of torsion, machinery driving efficiency is relatively low, and valve operation moment of torsion is larger.Moreover, the roller in said structure exists
During rotation and revolution, roller needs to redirect realization circulation, so, on the engagement screw thread of active runner or member of translational
Need set by roller reverse rotation track cut flat with mouth and synchronous spacing top is convex, reduce the accuracy of mesh to a certain extent,
Certain influence is generated to the transmission efficiency of top-pressure mechanism.It is in addition, bigger in order to be realized under limited valve ball volume
Load, it is necessary to increase the quantity of roller, that is, increase the area of contact of roller, but the solution that existing structure provides is simultaneously
It is imperfect.
The content of the invention
The technical problems to be solved by the invention are：Overcome the deficiencies in the prior art, there is provided one kind can realize the slow-speed of revolution,
A kind of low speed top load top-pressure mechanism of top load and the forced seal ball valve of formation.
The technical solution adopted for the present invention to solve the technical problems is：A kind of low speed top load top-pressure mechanism, including spiral shell
The active runner and member of translational of line engagement, are provided with roller mechanism between active runner and member of translational, it is characterised in that：Institute
The roller mechanism stated includes multiple rollers with a plurality of parallel annular groove, and multiple rollers are closely arranged between each other, and multiple rollings
Post engages with active runner and member of translational simultaneously.
The present invention is using removing retainer and being abound with the structure of roller, under heavy load operating mode, in order to more cloth
Roller is put, improves bearing capacity, at the same time, the stud and member of translational of stud gear are using the spiral shell for having same-handed lift angle
Line, and roller uses the groove structure without lead angle, difference is, screw thread and annular groove thread form do not include wedge angle.Ring
The cylinder of one fixed width is the substitute is without wedge angle in the crest portion of molar shape.Similarly, the stud of stud gear and translation
The crest of the form of thread of part also without wedge angle, the substitute is the cylinder of one fixed width.In the case where roller is abound with,
Roller engages with the screw thread of stud gear and member of translational, therefore adjacent roller certainly will produce height along helix arrangement in the axial direction
Degree is poor, when annular groove crest cylinder width is more than above-mentioned difference in height, contact surface between adjacent roller by be still crest cylinder,
Similar to the cylinder for being abound with roller bearing and being in contact, without because wedge angle presence and cause the phase of annular groove tooth between adjacent roller
Mutually intrusion and movement interference.So that the roller with annular groove still can provide carrying by the way of being abound with.Such knot
Structure so that the translation motion of member of translational is relative at a slow speed, and under operating mode of the load for heavy duty, very good effect can be reached
Fruit, and valve volume is reduced, the use demand of low speed, top load is fully met, and not to volume of equipment itself
Impact, it is compact-sized, it is more efficient.
The crest of the annular groove of described multiple rollers is the face of cylinder, and the active runner is the stud tooth that end face carries stud
Wheel, the stud of stud gear are provided with the screw thread with lead angle, and the width numerical value on the annular groove crest face of cylinder of the roller is big
In the thread pitch divided by the numerical value of the number of roller.
The width numerical value on the annular groove crest face of cylinder of roller be more than the numerical value of the number of the thread pitch divided by roller from
And the position for ensureing to contact between adjacent roller is the crest face of cylinder.
The parallel annular groove spaced set of described multiple rollers, multiple rollers around active runner stud circumference helically
Formula arranges, and the axial difference in height between two rollers of head and the tail is one times of pitch.
Around the rotating shaft of active runner, helically formula is arranged the screw thread constraint roller being engaged with, and therefore, adjacent two roller is deposited
Axial difference in height between axial difference in height, two rollers of head and the tail is about one times of pitch.Between adjacent roller, and along one times of spiral shell
Two roller contact surfaces in the case of being abound with of head and the tail away from arrangement are cylinder, such structure, relative in the action of flap jack-up
For at a slow speed, and under operating mode of the load for heavy duty, very good effect can be reached, and be reduced valve volume.
The stud of described stud gear is external screw thread stud, and member of translational is provided with corresponding internal thread boss, external screw thread
Stud engages the internal thread boss of member of translational by roller mechanism annular groove.
The stud of described stud gear is internal thread stud, and external screw thread boss, external screw thread are correspondingly provided with member of translational
Boss engages stud internal thread by roller mechanism annular groove.
Described roller mechanism is provided with the multigroup of inside and outside suit, and inside and outside multi-layer annular is coaxially disposed on described active runner
Stud, multigroup roller mechanism are separately mounted between the annular stud of adjacent two layers.
The screwed engagement projections of multilayer are correspondingly provided with described member of translational, between annular stud and engagement projections
Roller mechanism is installed.
The forced seal ball valve that a kind of low speed top load top-pressure mechanism is formed, it is characterised in that：Also include valve body, valve seat,
Valve rod and valve ball matrix, gear set transmission, the valve rod gear of gear set transmission are provided between valve rod and valve ball matrix
Installed in the top of valve ball matrix and stem lower portion is connected, described low speed top load top-pressure mechanism is arranged on stud gear and valve
Between valve；For valve rod gear by little gear connecting stud gear, stud gear is main turn wheel；Stud gear passes through roller mechanism
Flap is connected, flap is member of translational, and flap is provided with the limit that limitation flap rotates with stud gear between valve ball matrix
Revolve mechanism.
Sliding equipment is provided between described stud gear and valve ball matrix, sliding equipment includes ball and ball slideway,
Ball slideway is arranged on valve ball matrix and ball is abound with flap side, ball slideway, and ball side is in rolling contact described
Stud gear inner face.
Between stud gear and valve ball matrix, it usually needs friction, lifting transmission are reduced by the way of thrust bearing
Efficiency.In the case where heavy load low friction is required to take into account, present invention employs annular to be abound with ball, similar to ball wire
The structure type of thick stick, ball rotate with stud gear in the annular groove being coaxially disposed and revolution and rotation occur simultaneously, and annular groove is certainly
Architectonical forms self-loopa, and antifriction and supporting effect are more preferable in the forced seal ball valve application of heavy load at a slow speed.
Described stud gear inner face is provided with the contact surface of the annular groove engaged with ball, annular groove and roller
Set for arc.
Ball and two adjacent faces are arc linear contact lay, substantially increase the area of contact, equally heavily loaded at a slow speed
Antifriction and supporting effect are more preferable in the forced seal ball valve application of lotus.
Compared with prior art, beneficial effect possessed by the present invention is：The present invention, which uses, to be removed retainer and is abound with rolling
The structure of post, under heavy load operating mode, in order to more arrange roller, improve bearing capacity, at the same time, stud gear
Stud and member of translational using there is the screw thread of same-handed lift angle, and roller use the groove structure without lead angle, difference
Part is that screw thread and annular groove thread form do not include wedge angle.It the substitute is certain without wedge angle in the crest portion of annular groove thread form
The cylinder of width.Similarly, the crest of the form of thread of the stud of stud gear and member of translational is also without wedge angle, instead
It is the cylinder for having one fixed width.In the case where roller is abound with, roller engages with the screw thread of stud gear and member of translational, therefore
Adjacent roller certainly will produce difference in height along helix arrangement in the axial direction, when annular groove crest cylinder width is more than above-mentioned difference in height
When, contact surface between adjacent roller by be still crest cylinder, similar to the cylinder for being abound with roller bearing and being in contact, without
Cause the mutual intrusion of annular groove tooth and movement interference between adjacent roller because of the presence of wedge angle.So that the roller with annular groove
Carrying still can be provided by the way of being abound with.Such structure so that the translation motion of member of translational is relative at a slow speed, and
Under operating mode of the load for heavy duty, very good effect can be reached, and be reduced valve volume, fully meet low speed,
The use demand of top load, and volume of equipment itself is not impacted, it is compact-sized, it is more efficient.
Brief description of the drawings
Fig. 1 is the installation relation schematic diagram of a kind of low speed top load top-pressure mechanism and valve body.
Fig. 2 is ball schematic view of the mounting position.
Fig. 3 is stud gear structure schematic diagram.
Fig. 4 is Fig. 3 part A partial enlarged drawing.
Fig. 5 installation relation schematic diagrames between adjacent roller.
Fig. 6 is Fig. 5 part B partial enlarged drawing.
Fig. 7 is the connection relationship diagram of stud gear and roller.
Fig. 8 is forced seal ball-valve structure explosion diagram.
Wherein, 1, valve body 2, bonnet gasket 3, valve seat 4, valve body bolt 5, valve ball matrix 501, ball slideway 6, spiral shell
Stud wheel pressure ring 7, stud gear 701, stud screw thread 702, screw thread top surface 8, flap 9, valve rod gear 10, little gear 11,
Lid 13, nut 14, little gear gland 15, valve rod 16, roller 1601, ball crest 17, ball on upper lid 12, valve rod.
Embodiment
Fig. 1 ~ 8 are highly preferred embodiment of the present invention, and 1 ~ 8 the present invention will be further described below in conjunction with the accompanying drawings.
Embodiment 1
Referring to the drawings 1 ~ 8：A kind of low speed top load top-pressure mechanism, include the active runner and member of translational of screw thread engagement, in master
Roller mechanism is provided between turn wheel and member of translational, roller mechanism includes multiple rollers 16 with a plurality of parallel annular groove, more
The close arrangement, and multiple rollers 16 engage with active runner and member of translational simultaneously between each other of individual roller 16.
The crest of the annular groove of multiple rollers 16 is the face of cylinder, on the stud of stud gear 7 and member of translational and roller 16
The field of conjugate action is provided with the stud screw thread 701 with lead angle, and the crest of its engagement projections is the face of cylinder.Multiple rollers 16
Parallel annular groove spaced set, around the rotating shaft of active runner, helically formula arranges the screw thread constraint roller 16 being engaged with, adjacent
Therefore there is axial difference in height in two rollers 16, the axial difference in height between two rollers 16 is one times of pitch from beginning to end.
The stud of stud gear 7 is external screw thread stud, is correspondingly provided with internal thread boss on member of translational, external screw thread stud leads to
Cross the internal thread boss of roller mechanism annular groove engagement member of translational.
The forced seal ball valve that a kind of low speed top load top-pressure mechanism is formed, in addition to valve body 1, valve seat 3, valve rod and valve ball
Matrix 5, is provided with gear set transmission between valve rod and valve ball matrix 5, the valve rod gear of gear set transmission is arranged on valve
The top of ball matrix 5 simultaneously connects stem lower portion, and low speed top load top-pressure mechanism is arranged on the stud gear 7 and flap of active runner
Between 8；For valve rod gear 9 by the connecting stud gear 7 of little gear 10, stud gear 7 is main turn wheel；Stud gear 7 passes through rolling
Post mechanism connects flap 8, and flap 8 is member of translational, and limitation flap 8 is provided between flap 8 and valve ball matrix 5 with stud gear 7
The Xian Xuan mechanisms rotated together.
Sliding equipment is provided between valve body 1 and valve ball matrix 5, sliding equipment includes ball 17 and ball slideway 501, ball
Slideway 501 is arranged on valve ball matrix and ball 17 is abound with the side of flap 8, ball slideway 501, and the side of ball 17 is in rolling contact
The described inner face of stud gear 7.Between stud gear 7 and valve ball matrix 5, it usually needs dropped by the way of thrust bearing
Low friction, lift transmission efficiency.In the case where heavy load low friction is required to take into account, present invention employs annular to be abound with ball
17 structure type, structure type similar to ball-screw as shown in Fig. 2 ball 17 in the annular groove being coaxially disposed with stud
Gear 7 rotates and revolution and rotation occurs simultaneously, and annular groove, which establishes one's own system, to form self-loopa, ball 17 and two adjacent load-carrying surfaces
It is arc linear contact lay, substantially increases the area of contact, the equally antifriction in the forced seal ball valve application of heavy load at a slow speed
It is good with supporting effect.
Further, in order to increase the efficiency of ball 17, reduce friction, can be provided with and rolling on the inner face of stud gear 7
The annular groove that pearl 17 engages, the contact surface of annular groove and ball 17 are set for arc.
Under heavy load operating mode, in order to more arrange roller, bearing capacity is improved, the present invention, which uses, removes holding
Frame and the structure for being abound with roller 16.Similarly, the screw thread in the screw thread on the stud of stud gear 7 and flap 8, which all uses, phase
With the screw thread of lead angle, and roller 16 uses the groove structure without lead angle, and difference is, screw thread and annular groove thread form
Wedge angle is not included.As shown in figures 1-8：The cylinder of one fixed width is the substitute is without wedge angle in the crest portion of annular groove thread form.
Similarly, stud and the crest of the flap form of thread the substitute is the cylinder of one fixed width also without wedge angle.Expire in roller
In the case of cloth, roller engages with stud gear and flap screw thread, therefore adjacent roller in the axial direction certainly will along helix arrangement
Difference in height is produced, when annular groove crest cylinder width is more than above-mentioned difference in height, the contact surface between adjacent roller will be still crest
Cylinder, similar to being abound with cylinder that roller bearing is in contact as shown in Figure 6,7, without because wedge angle presence and cause phase
The mutual intrusion of annular groove tooth and movement interference between adjacent roller.So that the roller with annular groove still can be by the way of being abound with
Carrying is provided.Given in accompanying drawing between adjacent roller 16 and be abound with situation along two rollers 17 of head and the tail of one times of pitch arrangement
Lower contact surface is the situation of cylinder.Such structure, it is relative at a slow speed in the action of the jack-up of flap 8, and load is the work of heavy duty
Under condition, very good effect can be reached, and be reduced valve volume.
Embodiment 2
The stud of stud gear 7 is internal thread stud, is correspondingly provided with external screw thread boss on member of translational, external screw thread boss passes through rolling
Post mechanism is threadedly coupled the inwall of internal thread stud.Other settings are same as Example 1 with operation principle.
Embodiment 3
Another solution of severe duty is tackled, the He of multi-turn roller 16 is coaxially arranged between flap 8 and stud gear 7
Helicitic texture, carrying is further lifted, the roller of more layers can also be sequentially arranged.Roller mechanism is provided with the more of inside and outside suit
Group, set simultaneously on the end face of stud gear 7 inside and outside multi-layer annular stud, multigroup roller mechanism is separately mounted to adjacent two layers
Between annular stud.
Can also, be correspondingly provided with the screwed engagement projections of multilayer on member of translational, annular stud and engagement projections it
Between roller mechanism is installed.Other settings are identical with embodiment 1 or embodiment 2 with operation principle.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of low speed top load top-pressure mechanism, include the active runner and member of translational of screw thread engagement, in active runner peace
Roller mechanism is provided between shifting part, it is characterised in that：Described roller mechanism includes multiple rollings with a plurality of parallel annular groove
Post（16）, multiple rollers（16）Close arrangement between each other, and multiple rollers（16）Nibbled simultaneously with active runner and member of translational
Close.
A kind of 2. low speed top load top-pressure mechanism according to claim 1, it is characterised in that：Described multiple rollers（16）
The crest of annular groove be the face of cylinder, the active runner is the stud gear that end face carries stud（7）, stud gear（7）Spiral shell
Post is provided with the stud screw thread with lead angle（701）, the roller（16）The width numerical value on the annular groove crest face of cylinder be more than
The stud screw thread（701）Pitch divided by roller（16）Number numerical value.
3. according to a kind of any described low speed top load top-pressure mechanism of claim 1 or 2, it is characterised in that：Described is multiple
Roller（16）Parallel annular groove spaced set, multiple rollers（16）It is first around the stud circumference helically formula arrangement of active runner
Two rollers of tail（16）Between axial difference in height be one times of pitch.
A kind of 4. low speed top load top-pressure mechanism according to claim 2, it is characterised in that：Described stud gear（7）
Stud be external screw thread stud, member of translational is provided with corresponding internal thread boss, and external screw thread stud is nibbled by roller mechanism annular groove
Close the internal thread boss of member of translational.
A kind of 5. low speed top load top-pressure mechanism according to claim 2, it is characterised in that：Described stud gear（7）
Stud be internal thread stud, be correspondingly provided with external screw thread boss on member of translational, external screw thread boss is nibbled by roller mechanism annular groove
Close stud internal thread.
A kind of 6. low speed top load top-pressure mechanism according to claim 1, it is characterised in that：Described roller mechanism is provided with
Inside and outside suit it is multigroup, inside and outside multi-layer annular stud is coaxially disposed on described active runner, multigroup roller mechanism is installed respectively
Between two layers adjacent of annular stud.
A kind of 7. low speed top load top-pressure mechanism according to claim 6, it is characterised in that：It is correspondingly provided with member of translational
The screwed engagement projections of multilayer, roller mechanism is installed between annular stud and engagement projections.
8. the forced seal ball valve that a kind of low speed top load top-pressure mechanism according to claim 1 is formed, it is characterised in that：
Also include valve body（1）, valve seat（3）, valve rod and valve ball matrix（5）, valve rod and valve ball matrix（5）Between be provided with gear train driver
Structure, the valve rod gear of gear set transmission are arranged on valve ball matrix（5）Top and connect stem lower portion, described low speed is high
Load top-pressure mechanism is arranged on stud gear（7）With flap（8）Between；Valve rod gear（9）Pass through little gear（10）Connecting stud
Gear（7）, stud gear（7）For main turn wheel；Stud gear（7）Flap is connected by roller mechanism（8）, flap（8）It is flat
Move part, flap（8）With valve ball matrix（5）Between be provided with limitation flap（8）With stud gear（7）The limit rotation machine rotated together
Structure.
9. the forced seal ball valve that a kind of low speed top load top-pressure mechanism according to claim 8 is formed, it is characterised in that：
Described stud gear（7）With valve ball matrix（5）Between be provided with sliding equipment, sliding equipment includes ball（17）And ball slideway
（501）, ball slideway（501）It is arranged on valve ball matrix（5）Close to flap（8）Side, ball slideway（501）Inside it is abound with ball
（17）, ball（17）Side is in rolling contact described stud gear（7）Inner face.
10. the forced seal ball valve that a kind of low speed top load top-pressure mechanism according to claim 8 is formed, its feature exist
In：Described stud gear（7）Inner face is provided with and ball（17）The annular groove of engagement, annular groove and roller（17）'s
Contact surface is set for arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711184225.7A CN107725819B (en) | 2017-11-23 | 2017-11-23 | Low-speed high-load jacking mechanism and formed forced sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711184225.7A CN107725819B (en) | 2017-11-23 | 2017-11-23 | Low-speed high-load jacking mechanism and formed forced sealing ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725819A true CN107725819A (en) | 2018-02-23 |
| CN107725819B CN107725819B (en) | 2024-04-30 |
Family
ID=61219089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711184225.7A Active CN107725819B (en) | 2017-11-23 | 2017-11-23 | Low-speed high-load jacking mechanism and formed forced sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725819B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3800386A4 (en) * | 2018-05-03 | 2022-01-26 | Zibo Votaisi Petrochemical Equipment Co., Ltd | Planetary roller threaded device capable of being restored by means of holder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940208A (en) * | 1989-01-10 | 1990-07-10 | Kemp Development Corporation | Ball valve |
| CN104390029A (en) * | 2014-11-26 | 2015-03-04 | 苏州福润机械有限公司 | Low-damping ball valve |
| CN107327621A (en) * | 2017-08-11 | 2017-11-07 | 刘晓琦 | A kind of spiral closing device and its forced seal ball valve |
| CN207569257U (en) * | 2017-11-23 | 2018-07-03 | 淄博沃泰斯石化设备有限公司 | A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation |
-
2017
- 2017-11-23 CN CN201711184225.7A patent/CN107725819B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940208A (en) * | 1989-01-10 | 1990-07-10 | Kemp Development Corporation | Ball valve |
| CN104390029A (en) * | 2014-11-26 | 2015-03-04 | 苏州福润机械有限公司 | Low-damping ball valve |
| CN107327621A (en) * | 2017-08-11 | 2017-11-07 | 刘晓琦 | A kind of spiral closing device and its forced seal ball valve |
| CN207569257U (en) * | 2017-11-23 | 2018-07-03 | 淄博沃泰斯石化设备有限公司 | A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3800386A4 (en) * | 2018-05-03 | 2022-01-26 | Zibo Votaisi Petrochemical Equipment Co., Ltd | Planetary roller threaded device capable of being restored by means of holder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107725819B (en) | 2024-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011814A (en) | Disc brake with permanent magnet parking brake mechanism and braking method | |
| JP2014196775A (en) | V-belt type continuously variable transmission | |
| CN101886644A (en) | Rotary oil cylinder | |
| CN107725819A (en) | A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation | |
| CN207569257U (en) | A kind of low speed top load top-pressure mechanism and the forced seal ball valve of formation | |
| CN107524772A (en) | A kind of big stroke planetary roller screw pair | |
| CN209065326U (en) | High-speed and high-efficiency elevator | |
| CN204512459U (en) | A kind of valve stem elevating type stop valve | |
| CN107327621A (en) | A kind of spiral closing device and its forced seal ball valve | |
| CN201747314U (en) | Energy-saving oil production wellhead device | |
| CN101566219A (en) | Large-torque roll-type constant ratio/stepless speed changer | |
| CN204493846U (en) | A kind of compact type valve driving machine structure | |
| CN106284234A (en) | A kind of gate assisting fish migration to trace back headstock gear under water and method for opening and closing | |
| CN207079414U (en) | Steel wire rope double twisting device wire-arranging mechanism | |
| CN105473920B (en) | Valve operator component with compensation actuator | |
| CN204002782U (en) | The built-in reciprocating impact headstock of connecting rod | |
| CN207539428U (en) | A kind of roller top-pressure mechanism | |
| US20180298999A1 (en) | Linear actuator | |
| CN107534382A (en) | Transmission mechanism | |
| CN104676079A (en) | Compact valve driving mechanism | |
| CN107725880A (en) | A kind of roller top-pressure mechanism | |
| CN209587113U (en) | A kind of externally positioned type high pressure shift pusher | |
| CN207246470U (en) | A kind of circulation helical jack unit and its forced seal ball valve | |
| CN1446963A (en) | High-speed plastic circular weaving machine with small six shuttles and without shuttle wheel | |
| CN203604691U (en) | Cast steel gate valve of water supply system |
Legal Events
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |