CN202125625U - Expansion sleeve taper pin butterfly valve - Google Patents
Expansion sleeve taper pin butterfly valve Download PDFInfo
- Publication number
- CN202125625U CN202125625U CN2011202254964U CN201120225496U CN202125625U CN 202125625 U CN202125625 U CN 202125625U CN 2011202254964 U CN2011202254964 U CN 2011202254964U CN 201120225496 U CN201120225496 U CN 201120225496U CN 202125625 U CN202125625 U CN 202125625U
- Authority
- CN
- China
- Prior art keywords
- valve
- taper pin
- valve shaft
- expansion sleeve
- butterfly valve
- 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 discloses an expansion sleeve taper pin butterfly valve which comprises a valve shaft, a valve plate and a valve body, wherein the valve shaft is divided into an upper driving valve shaft and a lower valve shaft, and a connection mechanism between the upper driving valve shaft and the valve plate comprise a taper pin and an expansion sleeve bolt. The taper pin and the expansion sleeve bolt are opposite to each other and have a coaxial axis. Due to the adoption of the structure, only a common reamer with the length of 200mm and the conical degree of 1:50, and a common radial drill can be used for completing the processing assembly of the connection transmission of the upper driving valve shaft and the valve plate on the heavy-caliber butterfly valve, so that the processing technology can be simplified, and the processing cost can be reduced. Simultaneously, the expansion sleeve taper pin butterfly valve has a simple structure, is convenient to process and good in sealing property, does not need to be sealed by rubber, and has a self-locking function.
Description
Technical field
the utility model relates to a kind of expansion set taper pin butterfly valve, especially comprises the large-diameter butterfly valve of valve shaft, valve plate and valve body.
Background technique
are present, and butterfly valve obtains using very widely in many fields such as oil, chemical industry, metallurgy, water power as a kind of parts that are used for realizing pipe-line system break-make and flow control.Usually, small-bore butterfly valve plate valve shaft adopts key, pin to connect, and large-diameter butterfly valve generally adopts bearing pin to connect.The straight pin poor location, poor sealing, no auto-lock function is so be of little use; And the taper pin location is accurate, and good airproof performance has auto-lock function etc., so select taper pin usually for use.
along with the butterfly valve bore strengthens, difficulty also strengthens in the manufacturing, for large-diameter butterfly valve; More originally can't process when valve plate adopts general taper pin to be connected with last driving valve shaft, for greater than the butterfly valve more than the DN1600, the taper pin-hole length of valve plate and last driving valve shaft is greater than more than the 300mm; So not long reamer can't ream at all, so; General taper pin connects just can't be processed; And two ends bloated pin connective stability is bad, and interior taper pin difficulty of processing is big, and the location accuracy is poor.
The model utility content
The technical problem that
the utility model will solve provides a kind of easy to process and good airproof performance, has the expansion set taper pin butterfly valve of auto-lock function.
are in order to solve the problems of the technologies described above; A kind of expansion set taper pin butterfly valve of the utility model comprises valve shaft, valve plate and valve body; Wherein valve shaft is divided into driving valve shaft and lower valve shaft, and said bindiny mechanism of going up between driving valve shaft and the valve plate is taper pin and expansion set bolt.
The leakage face of
said valve plate is provided with taper pin and expansion set bolt respectively with the front, and this taper pin, expansion set bolt are oppositely arranged and coaxial line.
Such structure is adopted in
, just can accomplish driving valve shaft is connected transmission with valve plate processing assembling on the large-diameter butterfly valve with reamer and the common radial drilling machine of common length 200mm tapering 1:50, simplifies processing technology, cuts down finished cost.Have simple in structurely, easy to process simultaneously, good airproof performance need not rubber seal, and has auto-lock function.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is an A place enlarged view among Fig. 1.
Among
above-mentioned figure: 1-connecting base, 2-stuffing box gland bolt, 3-stuffing box gland, 4-seal ring 5-connecting base bolt; The last copper sheathing of 6-, 8-gland, 10-valve body, the last driving of 11-valve shaft; 12-expansion set bolt, 13-expansion set, 14-taper pin, 15-valve plate; The 16-lower valve shaft, copper sheathing under the 17-, 19-end bracket enclosed circle, 20-end cap.
Embodiment
elaborate below in conjunction with the embodiment of accompanying drawing to the utility model.
Fig. 1, Fig. 2 show the concrete structure of the utility model; A kind of expansion set taper pin butterfly valve of the utility model comprises valve shaft, valve plate 15 and valve body 10; Wherein valve shaft is divided into driving valve shaft 11 and lower valve shaft 16, and the said bindiny mechanism that drives between valve shaft 11 and the valve plate 15 of going up is taper pin 14 and expansion set bolt 12.The leakage face of said valve plate 15 is provided with taper pin 14 and expansion set bolt 12 respectively with the front, taper pin 14, expansion set bolt 12 relative and coaxial lines.
It is processing like this that the bindiny mechanism that drives between valve shaft 11 and the valve plate 15 is gone up in
: valve body 10 is hung in the assembling district keep flat; Face up; With valve plate 15 flat hanging in the valve body 10, with lower valve shaft 16, down copper sheathing 17, end bracket enclosed circle 19, end cap 20 are contained in below the valve plate 15 successively.Then, will go up drive valve shaft 11, go up copper sheathing 6, stuffing box gland 3, seal ring 4, stuffing box gland bolt 2, connecting base 1, connecting base bolt 5 be contained in above the valve plate 15 successively.Then body sealing ring 4, gland 8 are contained on the valve body 10, accomplish the assembling process in early stage like this.
then, the butterfly valve that above-mentioned part is installed hangs under Z3080 * 25 radial drilling machines, holes with lengthened drill bit; The hole drill of dark 400mm is logical, ream at last live axle 11 and valve plate 15 leakage faces with the reamer of length 200mm tapering 1:50, valve plate 15 leakage face valve plates cut with scissors entirely; Above the getting final product of last driving valve shaft 11 fraising degree of depth 50mm; In the middle of last live axle 11 and the valve plate 15 is transition zone, the butterfly valve that partly installs is turned over turnback keep flat, and the reamer with length 200mm tapering 1:50 reams with valve plate 15 fronts at last live axle 11 again; Valve plate 15 front valve plates cut with scissors entirely, on drive above the getting final product of valve shaft 11 fraising degree of depth 50mm.Said process has been accomplished last live axle 11 and valve plate 15 leakage faces and positive fraising.Then, butterfly valve is turned over turnback keep flat, the taper pin that processes 14 is packed into, compressed with valve plate 15 leakage faces from last live axle 11.Again butterfly valve is turned over turnback and keeps flat, with the expansion set that processes 13 load onto from last live axle 11 and valve plate 15 fronts, wedging, lock with expansion set bolt 12 again.Promptly accomplished the processing assembling process.
the utility model is with the reamer of common length 200mm tapering 1:50; Common Z3080 * 25 radial drilling machines have just been accomplished and have been driven valve shaft is connected transmission with valve plate processing assembling process on the large-diameter butterfly valve; Simplify processing technology, cut down finished cost.Have simple in structurely, easy to process simultaneously, good airproof performance need not rubber seal, and has auto-lock function.
Claims (2)
1. an expansion set taper pin butterfly valve comprises valve shaft, valve plate and valve body, and wherein valve shaft is divided into driving valve shaft and lower valve shaft, it is characterized in that: said bindiny mechanism of going up between driving valve shaft and the valve plate is taper pin and expansion set bolt.
2. according to the described a kind of expansion set taper pin butterfly valve of claim 1, it is characterized in that: the leakage face of said valve plate is provided with taper pin and expansion set bolt respectively with the front, and this taper pin, expansion set bolt are oppositely arranged and coaxial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202254964U CN202125625U (en) | 2011-06-29 | 2011-06-29 | Expansion sleeve taper pin butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202254964U CN202125625U (en) | 2011-06-29 | 2011-06-29 | Expansion sleeve taper pin butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202125625U true CN202125625U (en) | 2012-01-25 |
Family
ID=45488693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202254964U Expired - Fee Related CN202125625U (en) | 2011-06-29 | 2011-06-29 | Expansion sleeve taper pin butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202125625U (en) |
-
2011
- 2011-06-29 CN CN2011202254964U patent/CN202125625U/en not_active Expired - Fee Related
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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: 20120125 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |