CN2830809Y - Lever type cut-off butterfly valve - Google Patents
Lever type cut-off butterfly valve Download PDFInfo
- Publication number
- CN2830809Y CN2830809Y CN 200520032436 CN200520032436U CN2830809Y CN 2830809 Y CN2830809 Y CN 2830809Y CN 200520032436 CN200520032436 CN 200520032436 CN 200520032436 U CN200520032436 U CN 200520032436U CN 2830809 Y CN2830809 Y CN 2830809Y
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- China
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- valve plate
- valve
- drive shaft
- lever type
- butterfly valve
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- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a lever type butterfly cut-off valve applied to the smelting for a blast furnace, which comprises a valve body, a valve plate and a drive device, wherein the opening and the closing of the valve plate are driven by a four-connecting rod mechanism which comprises a driving rod which is fixedly connected with a main drive shaft, two driven rods which are arranged between the drive shaft and the valve plate, and a valve plate; a valve plate supporting base is arranged on the valve plate; the driving rod is connected with the valve plate supporting base by a hinge; the two driven rods are connected with each other by a hinge, and are respectively connected with the drive shaft and the valve plate supporting base by hinges. The drive device of the butterfly valve drives the main drive shaft to rotate, thereby, the four-connecting rod mechanism which is composed of the driving rod, the two driven rods and the valve plate is driven to move correspondingly to a base of the valve body. The proper size of the connecting rods is adopted to cause the valve plate to move according to a set running track, and the reliable opening action and the reliable closing action of the valve are realized. The utility model has the advantages of small size for the structure, light weight and no friction for running. Besides, the valve plate has a section of opening-closing translational motion process corresponding to the valve body at the moment of the opening and the closing of the valve, and the sealing performance of a sealing surface can be ensured for a long time.
Description
Affiliated technical field
The utility model relates to the Lever type cut-out butterfly valve that a kind of blast furnace process is used.
Background technique
In the various pipes of system for blast furnace ironmaking, have a large amount of in, Subzero valve, be medium temperature less than 500 ℃ valve, usually adopt perpendicular type gate valve, double eccentric butterfly valve, three eccentric butterfly valve, wherein perpendicular type gate valve has that sealing is good, reliability is high, the life-span is long and Applicable media temperature advantages of higher, be used widely, but it is huge, heavy that its shortcoming is a structure, and it is very inconvenient to install, debug and change, and the price height.Though the double eccentric butterfly valve physical dimension is little, in light weight, price is low, sealing surface wear is more serious, uses the later stage sealing effect poor, and occurs the jam phenomenon easily, and three eccentric butterfly valve sealing effect in the high media environment of dust loading is also undesirable.The cut-out butterfly valve of develop that a kind of physical dimension is little, in light weight, sealability is reliable and moderate is very necessary.
Summary of the invention
In order to solve the above-mentioned technical problem that the system for blast furnace ironmaking pipeline exists, provide hereby that the perpendicular type Gate-valve sealing of a kind of collection is good, the life-span is long, and advantages such as eccentric-butterfly-valve is in light weight, physical dimension is little, moderate cost, and the Lever type that can adapt to blast furnace ironmaking high-temperature dust working environment cuts off butterfly valve.
The technological scheme that the utility model adopted is:
Lever type cuts off butterfly valve and comprises valve body, valve plate and drive unit, and the quadratic crank mechanism transmission is adopted in the keying of valve plate, and the Lever type butterfly valve is to drive main drive shaft by drive unit, and then drives the quadratic crank mechanism transmission.Quadratic crank mechanism comprises two follower levers and the valve plate between driving lever, transmission shaft and the valve plate of fixedlying connected with main drive shaft.The valve plate bearing is set on the valve plate, and driving lever is connected with the valve plate bearing hinge, and between two follower levers, and the two is hinge with transmission shaft with the valve plate bearing respectively and is connected.
The sealing pair that valve body and valve plate constitute can adopt soft seal or hard sealing.
That drive unit can adopt is electronic, Hydraulic actuator or manually.
The butterfly valve drive unit drives main drive shaft and driving lever rotates, thereby drives the relative valve body base motion of quadratic crank mechanism, and can make valve plate by the running orbit of setting, and realizes reliable valve opening closing motion.
Lever type cut-out butterfly valve structure size is little, in light weight, and valve plate has one section folding translation process at the relative valve body with turn-off transient of valve opening, does not have the friction operation, can guarantee the sealability of sealing surface for a long time.
Description of drawings
Fig. 1 is a plan view of the present utility model
Fig. 2 is a plan view of the present utility model
Embodiment
Introduce embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in the figure: Lever type cuts off butterfly valve and comprises valve body (1), valve plate (2) and fluid pressure drive device (8).
The start-stop device of valve plate (2) is a quadratic crank mechanism, and quadratic crank mechanism comprises driving lever (4), valve plate (2) and the transmission shaft (3) of fixedlying connected with main drive shaft (3) and two follower levers (5) (6) between the valve plate (2).
Be fixed with valve plate bearing (7) on the valve plate (2), driving lever (4) is connected with valve plate bearing (7) hinge, and hinge connects between two follower levers (5) (6), and two follower levers (5) (6) are connected with valve plate bearing (7) hinge with transmission shaft (3) respectively.
The sealing pair (9) that valve body (1) and valve plate (2) constitute adopts the soft seal form.
The butterfly valve fluid pressure drive device drives main drive shaft and rotates, thereby drives the relative valve body base motion of being made up of driving lever, two follower levers, valve plate of quadratic crank mechanism.Select suitable connecting rod size for use, make valve plate, realize reliable switching motion by the running orbit motion of setting.
Claims (4)
1. the Lever type of a blast furnace process application cuts off butterfly valve, comprise valve body, valve plate and drive unit, the quadratic crank mechanism transmission is adopted in the keying that it is characterized in that valve plate, and quadratic crank mechanism comprises two follower levers and the valve plate between driving lever, transmission shaft and the valve plate of fixedlying connected with main drive shaft.
2. Lever type according to claim 1 cuts off butterfly valve, it is characterized in that the valve plate bearing is set on the valve plate, and driving lever is connected with the valve plate bearing hinge in the quadratic crank mechanism, and between two follower levers, and the two is hinge with transmission shaft with the valve plate bearing respectively and is connected.
3. Lever type according to claim 1 cuts off butterfly valve, it is characterized in that the sealing pair that valve body and valve plate constitute adopts soft seal or hard sealing.
4. Lever type according to claim 1 cuts off butterfly valve, it is characterized in that the butterfly valve main drive shaft is driven by drive unit, the transmission quadratic crank mechanism, and the drive unit employing is electronic, Hydraulic actuator or manual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032436 CN2830809Y (en) | 2005-10-28 | 2005-10-28 | Lever type cut-off butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032436 CN2830809Y (en) | 2005-10-28 | 2005-10-28 | Lever type cut-off butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830809Y true CN2830809Y (en) | 2006-10-25 |
Family
ID=37135735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520032436 Expired - Fee Related CN2830809Y (en) | 2005-10-28 | 2005-10-28 | Lever type cut-off butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830809Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287541A (en) * | 2011-07-22 | 2011-12-21 | 世林（漯河）冶金设备有限公司 | Sealing structure of connecting rod type cutting butterfly valve of blast furnace |
| CN102401141A (en) * | 2011-07-22 | 2012-04-04 | 世林（漯河）冶金设备有限公司 | Butterfly plate adjusting mechanism for connected rod type cut-off butterfly valve of blast furnace |
| CN106286865A (en) * | 2016-11-07 | 2017-01-04 | 河北工业大学 | A kind of three rod-type butterfly valves |
| CN107035872A (en) * | 2017-06-13 | 2017-08-11 | 石家庄三环阀门股份有限公司 | The bar-link drive of improved butterfly valve plate |
-
2005
- 2005-10-28 CN CN 200520032436 patent/CN2830809Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287541A (en) * | 2011-07-22 | 2011-12-21 | 世林（漯河）冶金设备有限公司 | Sealing structure of connecting rod type cutting butterfly valve of blast furnace |
| CN102401141A (en) * | 2011-07-22 | 2012-04-04 | 世林（漯河）冶金设备有限公司 | Butterfly plate adjusting mechanism for connected rod type cut-off butterfly valve of blast furnace |
| CN106286865A (en) * | 2016-11-07 | 2017-01-04 | 河北工业大学 | A kind of three rod-type butterfly valves |
| CN107035872A (en) * | 2017-06-13 | 2017-08-11 | 石家庄三环阀门股份有限公司 | The bar-link drive of improved butterfly valve plate |
| CN107035872B (en) * | 2017-06-13 | 2023-03-07 | 石家庄三环阀门股份有限公司 | Improved connecting rod driving mechanism of butterfly valve plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |