CN201748024U - Low-pressure adjusting valve connecting rod for steam extractor set - Google Patents
Low-pressure adjusting valve connecting rod for steam extractor set Download PDFInfo
- Publication number
- CN201748024U CN201748024U CN2010202668132U CN201020266813U CN201748024U CN 201748024 U CN201748024 U CN 201748024U CN 2010202668132 U CN2010202668132 U CN 2010202668132U CN 201020266813 U CN201020266813 U CN 201020266813U CN 201748024 U CN201748024 U CN 201748024U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- lever
- valve
- low pressure
- plate
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a low-pressure adjusting valve connecting rod for a steam extractor set, comprising a first connecting rod, a first lever, a second lever, a second connecting rod, a fourth connecting rod and a third connecting rod, wherein the first connecting rod is connected with an oil motor; the first lever is connected with the first connecting rod; the second lever is connected with the first lever; one end of the second connecting rod and one end of the fourth connecting rod are respectively connected with the first lever and the second lever, while the other end of the second connecting rod and the other end of the fourth connecting rod are connected with a group valve lifting plate; and the third connecting rod is connected with one end of the second lever, far away from the first lever. When the low-pressure adjusting valve is opened, the first lever rotates by taking a first fixed support as a fulcrum, under the action of the oil motor, so that the connecting point of the first lever and the second lever moves upwards, the second connecting rod and the fourth connecting rod moves upwards, and the group valve lifting plate is driven to move upwards, thus opening the group valve of the low-pressure adjusting valve. The second connecting rod and the fourth connecting rod are respectively arranged at symmetrical positions at two sides of the connecting point of the first lever and the second lever, thus being capable of ensuring that the second connecting rod and the fourth connecting rod move upwards simultaneously with the same movement range, ensuring the left-right balance of the group valve lifting plate, and avoiding jam phenomenon during the opening process.
Description
Technical field
The application relates to the extraction turbine technical group field, particularly relates to a kind of unit low pressure of drawing gas and transfers the valve bar linkage structure.
Background technique
The high pressure of unit of drawing gas transfers valve to be respectively applied for the throttle flow of the whole unit that draws gas of control, and low pressure transfers valve to be used to control to draw gas the throttle flow of the low pressure stage of unit, by the throttle flow adjustment amount of drawing gas of control low pressure stage.Transferring the valve connecting rod is to draw gas to connect the bindiny mechanism that oil engine and group's valve are carried plate on the unit, is used to control the throttle flow of unit of drawing gas.
The unit low pressure of drawing gas of the prior art is transferred the valve connecting rod to adopt with high pressure and is transferred the identical structure of valve connecting rod, shown in Fig. 1-2, high pressure transfers valve connecting rod 100 and low pressure to transfer valve connecting rod 101, wherein, low pressure transfers valve connecting rod 101 to comprise: lever 1, first connecting rod 2, second connecting rod 3 and third connecting rod 4.
First connecting rod 2 and described lever 1 are hinged, and the other end of first connecting rod 2 is connected with oil engine; Second connecting rod 3 flexibly connects with described lever 1, and the other end of this second connecting rod is fixedly connected on described high pressure and transfers on the valve 5, is used for support lever 1.
Third connecting rod 4 is connected with the end of lever 1 away from oil engine, and the fixedly connected low pressure of the other end of this third connecting rod 4 transfers group's valve of valve to carry plate 6.
Lever 1 comprises: first lever plate 11 and second lever plate 12.Wherein, first lever plate, 11 1 ends become angle to fix with second lever plate, 12 1 ends, and are connected with the oil engine (not shown) by first connecting rod 2.
Second connecting rod 3 comprises the first sub-connecting rod and the second sub-connecting rod, and described first lever plate 11 and second lever plate 12 are fixed to high pressure by the first sub-connecting rod and the second sub-connecting rod respectively and transfer on the valve 5.
Third connecting rod 4 comprises the 3rd sub-connecting rod and the 4th sub-connecting rod, and described first lever plate 11 and second lever plate 12 are connected to low pressure by the 3rd sub-connecting rod and the 4th sub-connecting rod respectively and transfer group's valve of valve to carry on the plate 6.
Open low pressure when transferring valve, oil engine drives first connecting rod 2 motions, and making lever 1 is that fulcrum rotates within the specific limits with the second connecting rod, thereby third connecting rod 4 is moved upward, and then makes group valve carry plate 6 to move upward, open the purpose that low pressure is transferred valve to reach.
It is far away apart from the oil engine of front that the low pressure of unit is transferred valve portion owing to draw gas, thereby lever 1 is longer.For the unit that draws gas that power is big, extraction pressure is lower, because lever 1 is oversize, and triangularity structure, transfer in the opening of valves process in low pressure, thus the active force that can't make action scope group valve carry the plate two ends equate, and then can't guarantee that group valve puies forward plate two ends balance, therefore, the bite phenomenon of valve easily takes place to transfer, the unit amount of drawing gas of can't normal regulating drawing gas, even fatal crass's great serious accident may appear.In addition, because high and low pressure transfers valve all to be connected on the same oil engine, the phenomenon that high low pressure transfers valve to collide mutually takes place in close together easily.
The model utility content
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of unit low pressure of drawing gas to transfer the valve connecting rod, transfers valve that the bite phenomenon takes place in opening process to avoid low pressure, and technological scheme is as follows:
A kind of unit low pressure of drawing gas is transferred the valve connecting rod, comprising: first lever;
With movable second lever that is connected of described first lever;
With on described first lever away from the hinged first connecting rod of an end of second lever, the other end of this first connecting rod is connected with described oil engine;
First fixed support hinged with described first lever, this first support bracket fastened the other end are fixed on described low pressure and transfer on the vaporium end cap of valve;
With the hinged second connecting rod of described first lever, the other end of this second connecting rod is fixed on described low pressure and transfers group's valve of valve to carry on the plate, and this second connecting rod is positioned at the side of described first fixed support near second lever;
With described second lever away from the hinged third connecting rod of an end of described first lever, the other end of this third connecting rod is fixed on described low pressure and transfers on the vaporium end cap of valve;
Four connecting rod hinged with described second lever, the 4th connecting rod and described second connecting rod be about the tie point symmetry of described first lever and second lever, and the other end of the 4th connecting rod is fixed on described low pressure and transfers group's valve of valve to carry on the plate.
Preferably, the described unit low pressure of drawing gas is transferred the valve connecting rod, also comprises:
One end is connected with described third connecting rod, and the other end is fixed on low pressure and transfers second fixed support on the vaporium end cap of valve.
Preferably, the described unit low pressure of drawing gas is transferred in the valve connecting rod, and described first lever comprises:
The first sub-lever plate and the second sub-lever plate that be arranged in parallel and connect by rotating shaft.
The technological scheme that is provided by above the embodiment of the present application as seen, when opening low pressure accent valve, first lever is that fulcrum rotates with first fixed support under the effect of oil engine, the tie point of first lever and second lever is moved upward, driving second lever rotates around third connecting rod, thereby second connecting rod and the 4th connecting rod are moved upward, and then drive coupled group's valve and carry plate and move upward, make low pressure transfer group's opening of valves of valve.Because second connecting rod and the 4th connecting rod lay respectively at the monosymmetric position of tie point of first lever and second lever, when this tie point moves upward, drive described second connecting rod and the 4th connecting rod moves upward simultaneously, and motion amplitude is identical, the left and right sides ascensional range that group's valve is carried plate is identical, promptly open low pressure when transferring valve, can guarantee that group valve puies forward the left and right sides balance of plate, so the opening process of low pressure accent valve the bite phenomenon can not take place.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiments that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the main TV structure schematic representation that a kind of low pressure of prior art is transferred the valve connecting rod;
Fig. 2 is the plan structure schematic representation that a kind of low pressure of prior art is transferred the valve connecting rod;
Fig. 3 transfers the main TV structure schematic representation of valve connecting rod for the embodiment of the present application low pressure;
Fig. 4 transfers the plan structure schematic representation of valve connecting rod for the embodiment of the present application low pressure.
Embodiment
In order to make those skilled in the art person understand technological scheme among the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technological scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiments.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
Referring to Fig. 3, the low pressure that the embodiment of the present application provides transfers the valve connecting rod to comprise: first lever 301, second lever 302, first connecting rod 303, second connecting rod 304, third connecting rod 305, the 4th connecting rod 306 and first fixed support 307, wherein:
Hinged away from an end of second lever 302 on the first connecting rod 303 and first lever 301, the other end of this first connecting rod is connected with oil engine 308, and this first connecting rod can move on vertical direction under the induced effect of oil engine 308.308 of this oil engines are transferred valve to provide to open and close for low pressure and are transferred valve actuation power, and are arranged on low pressure and transfer by the valve, make low pressure transfer valve and high pressure to transfer to have a segment distance between the valve and are unlikely to bump.
The second connecting rod 304 and first lever 301 are hinged, and the fixedly connected low pressure of the other end of this second connecting rod transfers group's valve of valve to carry plate 309.
Third connecting rod 305 is hinged with described second lever 302, and is positioned at the end of second lever 302 away from first lever, and the other end of this third connecting rod is fixed on described low pressure and transfers on the vaporium end cap 310 of valve.
The 4th connecting rod 306 and second lever 302 are hinged, and the other end of the 4th connecting rod is transferred group's valve of valve to carry plate 309 with described low pressure to fixedly connected; And the 4th connecting rod 306 and the tie point symmetry of described second connecting rod 304 about first lever and second lever.
One end of first fixed support 307 and first lever 301 are hinged, and the other end is fixed on described low pressure and transfers on the vaporium end cap 310 of valve, is used to support first lever 301.
When opening low pressure accent valve, oil engine drives first connecting rod 303 and moves downward, thereby first lever 301 is rotated within the specific limits around the tie point of first fixed support 307 with this first lever, the tie point of first lever 301 and second lever 302 is moved upward, and then second lever 302 is rotated around the tie point of itself and third connecting rod 305; Drive second connecting rod 304 and the 4th connecting rod 306 moved upward when the tie point of first lever 301 and second lever 302 moved upward, and finally made group valve carry plate 309 and moved upward.Because second connecting rod 304 and the 4th connecting rod 306 are about the tie point symmetry of first lever 301 and second lever 302, therefore, second connecting rod 304 and the 4th connecting rod 306 move upward simultaneously, and motion amplitude is identical, act on group valve and carry that the lifting force size at plate 309 two ends is identical, direction all makes progress, so group's valve is carried plate 309 and can level be moved upward, can not make low pressure transfer valve that the bite phenomenon takes place when opening.
The low pressure of the unit that draws gas that the embodiment of the present application provides is transferred the valve connecting rod, when opening low pressure accent valve, first lever is that fulcrum rotates with first fixed support under the effect of oil engine, the tie point of first lever and second lever is moved upward, driving second lever rotates around third connecting rod, thereby second connecting rod and the 4th connecting rod are moved upward, and then drive coupled group's valve and carry plate and move upward, make low pressure transfer group's opening of valves of valve.Because second connecting rod and the 4th connecting rod lay respectively at the monosymmetric position of tie point of first lever and second lever, when this tie point moves upward, drive described second connecting rod and the 4th connecting rod moves upward simultaneously, and motion amplitude is identical, the left and right sides ascensional range that group's valve is carried plate is identical, promptly open low pressure when transferring valve, can guarantee that group valve puies forward the left and right sides balance of plate, thereby avoid low pressure to transfer the opening process of valve the bite phenomenon can not take place.In addition, the low pressure of the unit that draws gas that the embodiment of the present application provides is transferred the valve connecting rod, adopts with high pressure and transfers the valve branch independent oil engine that is arranged that power is provided, so the phenomenon that high low pressure transfers the valve connecting rod to collide can not take place.
Preferably, as shown in Figure 3, the low pressure of the unit that draws gas that the foregoing description provides transfers the valve connecting rod also to comprise: an end and described third connecting rod 305 are hinged, second fixed support 311 that the other end is fixedlyed connected with the vaporium end cap of described low pressure accent valve, this second fixed support 311 is used for support fixation third connecting rod 305.
Preferably, referring to Fig. 3-4, the low pressure of the unit that draws gas that the foregoing description provides is transferred in the valve connecting rod:
First lever 301 comprises: the first sub-lever plate 3011 and the second sub-lever plate 3012.
Wherein, the first sub-lever plate 3011 and second sub-lever plate 3012 equal in length, and be arranged in parallel, obtain first lever 301 by rotating shaft 401 connections.And, second connecting rod 304, third connecting rod 305, the 4th connecting rod 306 constitute by two connecting plates, structural similarity with above-mentioned first lever, the rotating fulcrum that can guarantee each connecting rod like this is on same plane, guarantee that each connecting rod rotates in same plane, and then guarantee that whole low pressure transfers the valve bar linkage structure can balanced rotation, and drive group's valve and put forward the plate balance and move upward, can also strengthen the intensity of low pressure group valve connecting rod in addition.
The above only is the application's a embodiment; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection domain.
Claims (3)
1. the unit low pressure of drawing gas is transferred the valve connecting rod, it is characterized in that, comprising: first lever;
With movable second lever that is connected of described first lever;
With on described first lever away from the hinged first connecting rod of an end of second lever, the other end of this first connecting rod is connected with described oil engine;
First fixed support hinged with described first lever, this first support bracket fastened the other end are fixed on described low pressure and transfer on the vaporium end cap of valve;
With the hinged second connecting rod of described first lever, the other end of this second connecting rod is fixed on described low pressure and transfers group's valve of valve to carry on the plate, and this second connecting rod is positioned at the side of described first fixed support near second lever;
With described second lever away from the hinged third connecting rod of an end of described first lever, the other end of this third connecting rod is fixed on described low pressure and transfers on the vaporium end cap of valve;
Four connecting rod hinged with described second lever, the 4th connecting rod and described second connecting rod be about the tie point symmetry of described first lever and second lever, and the other end of the 4th connecting rod is fixed on described low pressure and transfers group's valve of valve to carry on the plate.
2. the unit low pressure of drawing gas according to claim 1 is transferred the valve connecting rod, it is characterized in that, also comprises:
One end is connected with described third connecting rod, and the other end is fixed on low pressure and transfers second fixed support on the vaporium end cap of valve.
3. the unit low pressure of drawing gas according to claim 1 and 2 is transferred the valve connecting rod, it is characterized in that described first lever comprises:
The first sub-lever plate and the second sub-lever plate that be arranged in parallel and connect by rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202668132U CN201748024U (en) | 2010-07-20 | 2010-07-20 | Low-pressure adjusting valve connecting rod for steam extractor set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202668132U CN201748024U (en) | 2010-07-20 | 2010-07-20 | Low-pressure adjusting valve connecting rod for steam extractor set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748024U true CN201748024U (en) | 2011-02-16 |
Family
ID=43582702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202668132U Expired - Fee Related CN201748024U (en) | 2010-07-20 | 2010-07-20 | Low-pressure adjusting valve connecting rod for steam extractor set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748024U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536347A (en) * | 2012-02-21 | 2012-07-04 | 杭州汽轮机股份有限公司 | Steam extraction lifting plate type adjusting valve of steam turbine |
| CN107688081A (en) * | 2017-10-13 | 2018-02-13 | 袁兴芳 | A kind of sewage detection system |
| CN112360579A (en) * | 2020-11-12 | 2021-02-12 | 中国长江动力集团有限公司 | Novel middle steam extraction adjusting steam valve and connecting rod structure |
| CN112855291A (en) * | 2021-01-19 | 2021-05-28 | 沂源县华阳能源设备有限公司 | Improved cylinder |
-
2010
- 2010-07-20 CN CN2010202668132U patent/CN201748024U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536347A (en) * | 2012-02-21 | 2012-07-04 | 杭州汽轮机股份有限公司 | Steam extraction lifting plate type adjusting valve of steam turbine |
| CN107688081A (en) * | 2017-10-13 | 2018-02-13 | 袁兴芳 | A kind of sewage detection system |
| CN112360579A (en) * | 2020-11-12 | 2021-02-12 | 中国长江动力集团有限公司 | Novel middle steam extraction adjusting steam valve and connecting rod structure |
| CN112855291A (en) * | 2021-01-19 | 2021-05-28 | 沂源县华阳能源设备有限公司 | Improved cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201748024U (en) | Low-pressure adjusting valve connecting rod for steam extractor set | |
| CN101134506A (en) | Helicopter rotor control mechanism | |
| CN108313268B (en) | Aileron control system of light aircraft | |
| CN106183830A (en) | A kind of pantograph collector head bascule | |
| CN108556942A (en) | A kind of pole climbing device that robot uses | |
| CN109515748A (en) | A kind of aircraft flap non-linear force loading method | |
| CN108443070A (en) | A kind of wind-driven generator with automatic protection functions for power transmission electric network | |
| CN107776873B (en) | Aircraft aileron operating mechanism | |
| CN207938216U (en) | Fixed-wing flight simulator throttle control mechanism | |
| CN109515689A (en) | A kind of aircraft trailing type spoiler differential control mechanism | |
| CN202911948U (en) | Flow diversion drive mechanism for duct lift fan | |
| CN205209226U (en) | Step -by -step stove is with rotatory flashboard device | |
| CN107653063A (en) | A kind of edible vegetable oil production fining pot | |
| CN108045556A (en) | A kind of aircraft flaperon motion | |
| CN208813495U (en) | A kind of aircraft evelvator manipulation device | |
| CN204684652U (en) | A kind of 2DOF vivid platform | |
| CN208981385U (en) | A kind of small-sized electric drive 4 wheel driven formula loading machine | |
| CN206316668U (en) | The bearing of hay mover head and the bearing feeder structure of gear shaft assembly machine | |
| CN207587215U (en) | The emulation linkage of helicopter flight simulator is always away from operating mechanism | |
| CN203996949U (en) | A kind of charging drives external packing scale | |
| CN205630628U (en) | Two steering engine control's arm | |
| CN204921058U (en) | Integrated type electricity liquid executor formula steam turbine valve governing system | |
| CN2668693Y (en) | Follow-up frame-swinging type snow-pusher | |
| CN209328786U (en) | A kind of transmission device applied to middle pressure fixed switching cabinet heavy current disconnecting switches | |
| CN207752930U (en) | A kind of high-performance earthing switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20140720 |
|
| EXPY | Termination of patent right or utility model |