CN109798390A - A kind of composite transmission device - Google Patents
A kind of composite transmission device Download PDFInfo
- Publication number
- CN109798390A CN109798390A CN201910180752.3A CN201910180752A CN109798390A CN 109798390 A CN109798390 A CN 109798390A CN 201910180752 A CN201910180752 A CN 201910180752A CN 109798390 A CN109798390 A CN 109798390A
- Authority
- CN
- China
- Prior art keywords
- nut
- screw
- lead
- composite
- composite component
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 title claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003079 shale oil Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Abstract
The invention discloses a kind of composite transmission devices, it is characterised in that: it includes large pitch transmission mechanism and small lead transmission mechanism, can be switched over using lead switching part between the large pitch transmission mechanism and the small lead mechanism.The composite transmission device of this two lead can be realized high pressure or Super high pressure valve during opening and closing, reduces the operation torsional forces of high pressure section, accelerates the opening and closing speed of low pressure stage.To meet the requirement that valve opening and closing speed will be fast and small operating force.The stability and safety of high pressure or Super high pressure valve opening and closing are further improved simultaneously.
Description
Technical field
The invention belongs to mechanical driving devices, are specifically exactly to be related to a kind of composite transmission device, especially have two
The composite transmission device of lead, speed is fast when can satisfy high pressure or Super high pressure valve opening and closing, the small requirement of operating force.
Background technique
At present in fields such as petroleum, natural gas, petrochemical industry, throttle well killing manifold, oil-gas gathering and transportation controls frequently with plate
Valve switches on or off pipeline fluid, and in traditional flap type, the movement of valve plate is to rely on the rotation of valve rod to realize, and valve
The connection and transmission of bar and valve plate, valve rod and valve stem nut are completed by screw thread, since the coefficient of friction of screw thread is big, are passed
Efficiency of movement is low, therefore the switch torque of valve is big, and the opening and closing of valve are very laborious, especially high pressure or super-pressure, great Kou
The valve of diameter, although the opening and closing that electric power realizes valve as power can be used, far from power supply, oil well dispersion
Desert, in the working environments such as Gobi desert, tropical rain forest, suitable power source can not be found as valve, driving force is provided.
The technological fix of driving force is provided in order to solve to be difficult to be utilized suitable power source under above-mentioned adverse circumstances as valve, China
Patent ZL200920075737.4 discloses a kind of flap type of ball-screw-transmission, including valve rod, bonnet, foot piece and under
One end of valve deck, valve rod is inserted in bonnet, and one end of foot piece is inserted in bottom flange, between valve rod and bonnet, foot piece under
It is designed with spring energy-storage sealing ring between valve deck, is equipped with " u "-shaped spring in spring energy-storage sealing ring.In the patented technology valve seat with
The bottom mating surface of valve seat orifice on valve body is equipped with the spring energy-storage sealing structure of inside and outside lip；The lifting of valve rod is to pass through rolling
Ballscrew is driven come what is realized, and the flap type of the ball-screw-transmission improves valve seal performance, significantly reduces valve
Switch torque.
But with the further development of oil exploitation technology, especially in the recovery process of shale oil and shale gas, put down
The pressure born required for plate valve further increases, and since the requirement further aspect of cost of winning control needs flap type opening
Actuation time when opening or closing is short enough, and on the other hand, required operating force can when opening and closing for flap type
It is sufficiently small, and the flap type of the ball-screw-transmission in the offer of above-mentioned patented technology is difficult to meet above-mentioned technical requirements.
Summary of the invention
When the purpose of the present invention is to being acted when above-mentioned existing flap type is difficult to realize and on the one hand opens or closes
Between it is short enough, on the other hand, the flap type technical problem that required operating force can be sufficiently small when opening and closing provides
A kind of composite transmission device with two leads, the speed that can be realized high pressure or Super high pressure valve opening and closing is fast, behaviour
Make the lesser purpose of power.
Technical solution
In order to achieve the above technical purposes, the present invention provides a kind of composite transmission devices, it is characterised in that: it includes
Large pitch transmission mechanism and small lead transmission mechanism, can between the large pitch transmission mechanism and the small lead transmission mechanism
Transmission conversion is carried out using lead switching part.
Further, the large pitch transmission mechanism includes long lead screw, and nut screw composite part is set on the long lead screw
Part, the nut screw composite component can move back and forth on the long lead screw, and the small lead transmission mechanism includes main spiral shell
Mother, the main nut are sleeved on the nut screw composite component and can move back and forth, the nut screw composite component
One end is provided with lead switching part.
Further, the lead switching part is friction clutch, the friction clutch and the nut screw composite part
Part is integral type or combined type, and the long lead screw runs through the friction clutch and the nut screw composite component.
Further, nut features and lead screw features, the nut silk are provided on the nut screw composite component
Thick stick composite component is sleeved on the long lead screw using nut features, and the main nut is sleeved on described using lead screw features
On nut screw composite component.
Further, one end opposite with setting lead switching part on the nut screw composite component is provided with limit method
It is blue.
Further, interconnecting piece is provided on the end of described long lead screw one end.
Further, screw thread or flange or keyway interconnecting piece are provided on the periphery of the main nut.
Preferably, the shape of the friction clutch is cone.
Beneficial effect
A kind of composite transmission device with two leads provided by the invention, can be realized high pressure or Super high pressure valve exists
The speed of opening and closing is fast, valve opening or the lesser purpose of operation for closing needs.Simultaneously further improve high pressure or
The stability and safety that Super high pressure valve opens and closes.
Detailed description of the invention
Attached drawing 1 is mesohigh of the embodiment of the present invention or when Super high pressure valve is in close state compound gearing
Structural schematic diagram.
Attached drawing 2 is that mesohigh of the embodiment of the present invention or Super high pressure valve are in Composite Transmission when high pressure section open state
The structural schematic diagram of device.
Compound gearing when being mesohigh of the embodiment of the present invention or Super high pressure valve in the open state of attached drawing 3
Structural schematic diagram.
Attached drawing 4 is that mesohigh of the embodiment of the present invention or Super high pressure valve are in Composite Transmission when low pressure stage closed state
The structural schematic diagram of device.
Attached drawing 5 is the structural schematic diagram of nut screw composite component in the embodiment of the present invention.
Attached drawing 6 is the structural schematic diagram of main nut in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment
It is opened to meet Super high pressure valve during the needs of current high pressure valve, especially shale oil and shale gas exploitation
The technical purpose that speed is fast, operating force is small is required when opening and closing, the present invention provides a kind of composite transmission devices, it includes
Large pitch transmission mechanism and small lead transmission mechanism, can between the large pitch transmission mechanism and the small lead transmission mechanism
Transmission conversion is carried out using lead switching part, the high pressure section in valve opening or closing process is that small lead transmission mechanism acts as
With, and the low pressure stage of valve opening or closing process is that large pitch transmission mechanism works.
In particular, as shown in attached drawing 1~4, large pitch described in a kind of composite transmission device provided in this embodiment
Transmission mechanism includes long lead screw 1, and nut screw composite component 2, the nut screw composite component are set on the long lead screw 1
2 can be for the helical movement with the long lead screw 1, and the small lead transmission mechanism includes main nut 3, and the main nut 3 is sleeved on
Can be for the helical movement on the nut screw composite component 2, the one end of the nut screw composite component 2 is provided with lead
Switching part.Lead switching part described in the present embodiment is friction clutch 4, and preferable shape is cone, the cone and institute
Nut screw composite component 2 is stated as integral type or combined type, in the present embodiment, the cone and the nut screw are compound
Component 2 is integral type.The long lead screw 1 runs through the cone and the nut screw composite component 2.
As shown in Fig. 5, nut features 201 and lead screw features are provided on the nut screw composite component 2
202, the nut screw composite component 2 is sleeved on the long lead screw 1 using nut features 201,3 benefit of main nut
It is sleeved on the nut screw composite component 2 with lead screw features 202.It is led on the nut screw composite component 2 with setting
The opposite one end of journey switching part, which is provided with stop flange 203, can limit screw stroke with main nut 3.
In order to connect with the valve rod of valve, interconnecting piece 101 is provided on the end of described 1 one end of long lead screw.
In order to connect with the nut of valve set or nut seat, screw thread or flange are provided on the periphery of the main nut 3
Or in the present embodiment, screw thread is arranged on the periphery of the main nut 3 as shown in Fig. 6 in the interconnecting pieces such as keyway 301.Such as attached drawing
Shown in 1, when the valve is in a closed position, the nut screw composite component 2 is in the left end of long lead screw 1, and in long filament
Gasket 5 is arranged in favor of the end face and inside of damage nut screw composite component 2 are connect and prevented with valve rod in 1 shaft shoulder face position of thick stick
Part.
When valve needs to open, the nut set or nut seat of valve drive main nut 3 to rotate (axially constrained), because
Large and small lead transmission mechanism torsional forces is different, is that small lead transmission mechanism works first, nut screw composite component 2 is to the left
Movement, until cone is limited in conjunction with the conical bore of main nut 3.As shown in Fig. 2.Valve is partially opened at this time,
Valve cavity pressure significantly reduces.
Then nut screw composite component 2 is because of the effect of frictional force, and by main nut 3 with rotating together, from face, drive is grown
Lead screw 1 quickly moves downward, until valve is all turned on.As shown in Fig. 3.During entire valve opening, early period is due to small
Lead transmission mechanism torque is small, so opening operation power is smaller.Later period is because valve cavity pressure significantly reduces, so large pitch passes
Motivation structure remains to that valve opening is rapidly completed with lesser operating force.
When valve needs to close, since the frictional force that cone 4 generates in conjunction with the conical bore of main nut 3 is greater than greatly
The torsional forces of lead transmission mechanism is that large pitch transmission mechanism works first, and the nut screw composite component 2 is in company with main spiral shell
Mother 3 rotates together.Long lead screw 1 is driven quickly to move right, until gasket 5 is limited after contacting nut screw composite component 2.
As shown in Fig. 4.
Then the conical bore coupling disengaging of cone and main nut 3, nut screw composite component 2 be converted to linear motion after
It is continuous to move right, until valve is all closed.As shown in Fig. 1.In entire valve closing process, early period, valve cavity pressure was small,
It is rapidly completed by large pitch transmission mechanism, later period valve cavity pressure is big, is completed by small lead transmission mechanism.
The present embodiment structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Meanwhile cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", the use of " counterclockwise " in this specification
Language is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Claims (8)
1. a kind of composite transmission device, it is characterised in that: it includes large pitch transmission mechanism and small lead transmission mechanism, described
Between large pitch transmission mechanism and the small lead transmission mechanism transmission conversion can be carried out using lead switching part.
2. a kind of composite transmission device as described in claim 1, it is characterised in that: the large pitch transmission mechanism includes length
Lead screw (1) is set with nut screw composite component (2) on the long lead screw (1), and the nut screw composite component (2) can
It is moved back and forth on the long lead screw (1), the small lead transmission mechanism includes main nut (3), and the main nut (3) is sleeved on
It can be moved back and forth on the nut screw composite component (2), the one end of the nut screw composite component (2), which is provided with, to be led
Journey switching part.
3. a kind of composite transmission device as claimed in claim 2, it is characterised in that: the lead switching part is friction clutch
Device (4), the friction clutch (4) and the nut screw composite component (2) are integral type or combined type, the long lead screw
(1) run through the friction clutch (4) and the nut screw composite component (2).
4. a kind of composite transmission device as claimed in claim 2, it is characterised in that: the nut screw composite component (2)
On be provided with nut features (201) and lead screw features (202), the nut screw composite component (2) utilizes nut feature
Portion (201) is sleeved on the long lead screw (1), and the main nut (3) is sleeved on the nut silk using lead screw features (202)
On thick stick composite component (2).
5. a kind of composite transmission device as claimed in claim 2, it is characterised in that: the nut screw composite component (2)
Upper one end opposite with setting lead switching part is provided with stop flange (203).
6. a kind of composite transmission device as claimed in claim 2, it is characterised in that: the end of described long lead screw (1) one end
On be provided with interconnecting piece (101).
7. a kind of composite transmission device as claimed in claim 2, it is characterised in that: on the periphery of the main nut (3)
It is provided with screw thread or flange or keyway interconnecting piece (301).
8. a kind of composite transmission device as claimed in claim 3, it is characterised in that: the shape of the friction clutch (4)
Preferably cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180752.3A CN109798390A (en) | 2019-03-11 | 2019-03-11 | A kind of composite transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180752.3A CN109798390A (en) | 2019-03-11 | 2019-03-11 | A kind of composite transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109798390A true CN109798390A (en) | 2019-05-24 |
Family
ID=66562595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910180752.3A Pending CN109798390A (en) | 2019-03-11 | 2019-03-11 | A kind of composite transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109798390A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU671464A1 (en) * | 1977-06-08 | 1982-11-15 | Предприятие П/Я А-7755 | Slide gate |
| EP0134866A2 (en) * | 1983-07-18 | 1985-03-27 | Kerotest Manufacturing Corporation | On-off valve |
| CN1122419A (en) * | 1994-07-25 | 1996-05-15 | 希尔蒂股份公司 | Self adapting frictional clutch |
| CN202302215U (en) * | 2011-12-20 | 2012-07-04 | 石家庄石特阀门有限责任公司 | Rapid switching device for valve |
| CN204512624U (en) * | 2015-02-10 | 2015-07-29 | 西派集团有限公司 | Ball-screw-transmission assembly |
| WO2016019983A1 (en) * | 2014-08-05 | 2016-02-11 | Aktiebolaget Skf | Valve operator assembly, valve equipped with such assembly and assembly process for such a valve |
| WO2016062328A1 (en) * | 2014-10-20 | 2016-04-28 | Aktiebolaget Skf | Valve operator assembly and valve equipped with such assembly |
| WO2016078688A1 (en) * | 2014-11-17 | 2016-05-26 | Aktiebolaget Skf | Valve operator assembly with variable lead |
| CN105697704A (en) * | 2016-03-04 | 2016-06-22 | 苏州道森钻采设备股份有限公司 | Screw rod transmission mechanism changeable in rotation speed and torque |
| CN108071848A (en) * | 2016-11-17 | 2018-05-25 | 斯凯孚公司 | Valve operator component with clutch mechanism and the valve for being equipped with this component |
| CN210266122U (en) * | 2019-03-11 | 2020-04-07 | 上海雄联精密机械配件有限公司 | Combined type transmission |
-
2019
- 2019-03-11 CN CN201910180752.3A patent/CN109798390A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU671464A1 (en) * | 1977-06-08 | 1982-11-15 | Предприятие П/Я А-7755 | Slide gate |
| EP0134866A2 (en) * | 1983-07-18 | 1985-03-27 | Kerotest Manufacturing Corporation | On-off valve |
| CN1122419A (en) * | 1994-07-25 | 1996-05-15 | 希尔蒂股份公司 | Self adapting frictional clutch |
| CN202302215U (en) * | 2011-12-20 | 2012-07-04 | 石家庄石特阀门有限责任公司 | Rapid switching device for valve |
| WO2016019983A1 (en) * | 2014-08-05 | 2016-02-11 | Aktiebolaget Skf | Valve operator assembly, valve equipped with such assembly and assembly process for such a valve |
| WO2016062328A1 (en) * | 2014-10-20 | 2016-04-28 | Aktiebolaget Skf | Valve operator assembly and valve equipped with such assembly |
| WO2016078688A1 (en) * | 2014-11-17 | 2016-05-26 | Aktiebolaget Skf | Valve operator assembly with variable lead |
| CN204512624U (en) * | 2015-02-10 | 2015-07-29 | 西派集团有限公司 | Ball-screw-transmission assembly |
| CN105697704A (en) * | 2016-03-04 | 2016-06-22 | 苏州道森钻采设备股份有限公司 | Screw rod transmission mechanism changeable in rotation speed and torque |
| CN108071848A (en) * | 2016-11-17 | 2018-05-25 | 斯凯孚公司 | Valve operator component with clutch mechanism and the valve for being equipped with this component |
| CN210266122U (en) * | 2019-03-11 | 2020-04-07 | 上海雄联精密机械配件有限公司 | Combined type transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2394082B1 (en) | Manual override apparatus for linear actuators | |
| CN110230703A (en) | Double drive actuator | |
| CN110159785A (en) | A kind of improved ball valve | |
| SG184682A1 (en) | Differential screw assembly for varying torque for valve | |
| CN110185812A (en) | A kind of ball valve | |
| CN106246992B (en) | A kind of compound headstock gear of high-temperature high pressure valve | |
| CN105221768B (en) | A kind of double rocking lever is without friction hard-sealing butterfly valve | |
| CN208764356U (en) | A kind of hand liquid-operated flat valve | |
| CN109854760B (en) | Guide balance butterfly valve | |
| CN109798390A (en) | A kind of composite transmission device | |
| CN101737503B (en) | Self-balancing stop valve with piston type valve core and hidden rod | |
| CN105757315B (en) | Dual positioning multilayer hard seal butterfly valve | |
| CN210266122U (en) | Combined type transmission | |
| CN201836431U (en) | Fully screwed cock valve | |
| CN208185525U (en) | A kind of combination valve | |
| CN203757160U (en) | Stop valve | |
| CN205401781U (en) | Lead screw gate valve of variable rotational speed and torque | |
| CN203322442U (en) | Shutoff valve driven by electric push rod | |
| CN2630589Y (en) | Ball valve with long service life | |
| CN107448666A (en) | A kind of hand-reset structure for Direct Travel actuator | |
| CN105736814B (en) | Three valve rod gears drive sealing valve | |
| CN203809714U (en) | Three-rod switch butterfly valve | |
| CN105090602B (en) | Valve hydraulic pressure handwheel | |
| CN210135249U (en) | Guide balance type butterfly valve | |
| CN209856399U (en) | Axial flow control valve |
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 |