CN202612678U - Butterfly valve for improving transmission stability - Google Patents
Butterfly valve for improving transmission stability Download PDFInfo
- Publication number
- CN202612678U CN202612678U CN 201220231620 CN201220231620U CN202612678U CN 202612678 U CN202612678 U CN 202612678U CN 201220231620 CN201220231620 CN 201220231620 CN 201220231620 U CN201220231620 U CN 201220231620U CN 202612678 U CN202612678 U CN 202612678U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly valve
- transmission stability
- locating sleeve
- shaft
- 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
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Abstract
The utility model relates to the field of a butterfly valve used for metallurgy, in particular to a butterfly valve for improving the transmission stability. The butterfly valve for improving the transmission stability comprises a valve body, a valve shaft, a valve plate and an actuating mechanism, wherein the valve shaft and the valve plate are connected by a hinge, and the hinge is provided with a hinge pin. The butterfly valve for improving the transmission stability is characterized in that the hinge pin is provided with a locating sleeve, the locating sleeve is positioned between shaft sleeves on two ends of the hinge pin, and the locating sleeve is in a split structure split along the axis of the locating sleeve. Compared with the prior art, the butterfly valve for improving transmission stability has the beneficial effects that the locating sleeve is arranged on the hinge pin, so that the position of the shaft sleeves can be accurately positioned, and the phenomenon that the normal opening of the valve is affected as the shaft slides out due to high temperature or other reasons can be avoided; the locating sleeve is the split structure split along the axis, and can be installed under the condition that the valve shaft is not disassembled; and the locating sleeve is especially suitable for processing the butterfly valve which is in use.
Description
Technical field
The utility model relates to metallurgical use butterfly valve field, particularly a kind of butterfly valve that improves transmission stability.
Background technique
Along with metallurgy with the improving constantly of butterfly valve performance, metallurgical at present with butterfly valve by the higher gate valve of alternative cost more and more, still in use; The butterfly valve that discovery is used in the blast-furnace hot-air system is because action of high temperature; Bearing pin and axle sleeve between valve plate and the valve shaft on the hinge are different because of thermal expansion coefficient, and axle sleeve is scurried out especially easily, and concrete structure is seen Fig. 2; Valve plate generation deflection is stuck on the valve body; Butterfly valve can't normally be realized switch motion, causes the hot blast stove can't proper functioning, causes the blast furnace staying accident when serious.
Summary of the invention
The purpose of the utility model provides a kind of butterfly valve that improves transmission stability, overcomes the deficiency of existing technology, makes the axle sleeve on the valve plate hinge can realize stable location, does not receive temperatures involved, guarantees the butterfly valve proper functioning.
For solving the problems of the technologies described above, the technological scheme of the utility model is:
A kind of butterfly valve that improves transmission stability comprises valve body, valve shaft, valve plate and actuator, is connected through hinge between valve shaft and the valve plate, and hinge is provided with bearing pin, on bearing pin, is provided with setting sleeve, and setting sleeve is between the axle sleeve at bearing pin two ends.
Said setting sleeve is the split-type structural along its axis subdivision.
Compared with prior art, the beneficial effect of the utility model is: 1) through setting sleeve is set on bearing pin, the position that makes axle sleeve is by location exactly, can Yin Gaowen or other reasons scurry out, influence the normal unlatching of valve; 2) setting sleeve is the split-type structural along the axis subdivision, under the condition of not dismantling valve shaft, can install, and the dish valve that is particularly suitable for aligning is in use handled.
Description of drawings
Fig. 1 is the utility model example structure schematic representation;
Fig. 2 is a butterfly valve structure schematic representation in the existing technology.
Among the figure: the 1-valve body 2-valve shaft 3-valve plate 4-5-of actuator hinge 6-bearing pin 7-setting sleeve 8-axle sleeve
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing the utility model:
See Fig. 1; It is a kind of butterfly valve example structure schematic representation that improves transmission stability of the utility model; Comprise valve body 1, valve shaft 2, valve plate 3 and actuator 4, be connected through hinge 5 between valve shaft 2 and the valve plate 3 that hinge 5 is provided with bearing pin 6; On bearing pin 6, be provided with setting sleeve 7, setting sleeve 7 is between the axle sleeve 8 at bearing pin 6 two ends.Valve shaft 2 can be realized the upset of valve plate 3 under the driving of actuator 4, hinge 5 can make the running orbit of valve plate 3 round suitable, avoids valve plate 3 and valve body 1 to interfere phenomenon.
In order to make setting sleeve 7 more convenient installations, setting sleeve 7 is the split-type structural along its axis subdivision, so setting sleeve is when installing; Need not to pull down actuator 4 and valve shaft 2; Only need press the distance making setting sleeve 7 of 8 neutral gears of axle sleeve, two setting sleeves are combined on the bearing pin 6, on-the-spot spot welding or promptly accomplish installation with link; Very convenient quick, do not influence the normal operation of production.
Claims (2)
1. a butterfly valve that improves transmission stability comprises valve body, valve shaft, valve plate and actuator, is connected through hinge between valve shaft and the valve plate; Hinge is provided with bearing pin; It is characterized in that on bearing pin, be provided with setting sleeve, setting sleeve is between the axle sleeve at bearing pin two ends.
2. a kind of butterfly valve that improves transmission stability according to claim 1 is characterized in that said setting sleeve is the split-type structural along its axis subdivision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231620 CN202612678U (en) | 2012-05-21 | 2012-05-21 | Butterfly valve for improving transmission stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231620 CN202612678U (en) | 2012-05-21 | 2012-05-21 | Butterfly valve for improving transmission stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612678U true CN202612678U (en) | 2012-12-19 |
Family
ID=47346379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231620 Expired - Fee Related CN202612678U (en) | 2012-05-21 | 2012-05-21 | Butterfly valve for improving transmission stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953240A (en) * | 2014-03-31 | 2014-07-30 | 杭州德安救生设备科技有限公司 | High-temperature-resistant refractory hinge structure for lifesaving equipment |
-
2012
- 2012-05-21 CN CN 201220231620 patent/CN202612678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953240A (en) * | 2014-03-31 | 2014-07-30 | 杭州德安救生设备科技有限公司 | High-temperature-resistant refractory hinge structure for lifesaving equipment |
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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: 20121219 Termination date: 20180521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |