CN108544328A - The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat - Google Patents
The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat Download PDFInfo
- Publication number
- CN108544328A CN108544328A CN201810453428.XA CN201810453428A CN108544328A CN 108544328 A CN108544328 A CN 108544328A CN 201810453428 A CN201810453428 A CN 201810453428A CN 108544328 A CN108544328 A CN 108544328A
- Authority
- CN
- China
- Prior art keywords
- sealing surface
- link
- butterfly
- eccentric
- grinding device
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 238000000227 grinding Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
- B24B15/04—Machines or devices designed for grinding seat surfaces; Accessories therefor on valve members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The present invention relates to a kind of flexible grinding devices of three-eccentric-butterfly-valve sealing surface of seat, including chuck and grinding device, chuck end face to be fixedly mounted on machine tool chief axis, and valve body is fixedly mounted in other end, and grinding device is made of bistrique and mobile holder；Mainly bistrique is mounted on by radial floating device on mobile holder, and the radial floating device is made of link, link block, square groove block and spring.Make bistrique that there is flexible float function, bistrique is close to sealing surface of seat always in process of lapping so that sealing surface of seat continuity and planarization after grinding be good, highly polished, good seal performance.Grinding tool suitable for three-eccentric-butterfly-valve sealing surface of seat.
Description
Technical field
The present invention relates to a kind of milling apparatus, are specifically filled about a kind of grinding of three-eccentric-butterfly-valve sealing surface of seat
It sets.
Background technology
For three-eccentric-butterfly-valve because the seal pressure of sealing pair is high, good seal performance is the mainstream structure design form of butterfly valve,
Application in industry-by-industry is also increasingly wider, and the quality of butterfly valve seat sealing surface determines the major parameter of its properties of product.By
In the oblique section that three-eccentric-butterfly-valve sealing surface of seat is a circular cone, the particularity of structure makes the high quality of its sealing surface add
Work is always the difficult point in domestic industry.Currently, the grinding technics of conventional three-eccentric-butterfly-valve sealing surface of seat, typically by valve
Body is mounted in grade bar tooling, is ground to sealing surface of seat using the sanding machine bistrique on lathe, is ground
Sealing surface is that making-breaking point is formed by connecting, and sealing surface continuity and planarization are poor, and finish is low, and sealing surface of seat is sealed with butterfly plate
Sealing matching property between face is poor, especially the very stiff and demanding cooperation to all-metal butterfly plate sealing surface and metal seat valve sealing surface
When, it is easy to it leaks.
Invention content
That in response to the problems existing in the prior art, the purpose of the present invention is to provide a kind of sealing surface continuitys and planarization is good,
Highly polished, the sealing good three-eccentric-butterfly-valve sealing surface of seat of matching property flexible grinding device.
Technical scheme of the present invention includes chuck and grinding device, and chuck end face is fixedly mounted on machine tool chief axis, separately
Valve body is fixedly mounted in end face, and grinding device is made of bistrique and mobile holder；Mainly bistrique is pacified by radial tightening device
In the mounting disc of mobile holder, the radial tightening device is movably arranged on using flexible pre-tightening mechanism, bistrique by axis pin
Flexible pre-tightening mechanism upper end.
Preferably, the flexible pre-tightening mechanism is spring pretightening mechanism, by link, link block, square groove block and groups of springs
At square groove block is fixedly mounted on by screw in the mounting disc of mobile holder, and bistrique is mounted on by shaft on link, under link
Portion is connected with each other with link block top using axis pin, and the square of link block lower part is movably embedded into the square groove in square groove block, bullet
Spring is mounted between the spring eye in the lower face and square groove block of link block lower part square.
Preferably, the flexible pre-tightening mechanism is hydraulic piston mechanism, by link, piston cylinder, piston, piston rod group
At bistrique is mounted on by shaft on link, and piston cylinder is arranged in mounting disc, is adopted between link lower part and piston rod upper end
It is connected with each other with axis pin, the rodless cavity of piston cylinder is connected to hydraulic pump.
Preferably, secondary spring is installed respectively between the link lower face of axis pin both sides and square groove block upper surface.
Preferably, one end of shaft is fixedly connected with motor output shaft, and motor housing is fixedly mounted on the side of link.
Preferably, flexible pre-tightening mechanism uses three, is uniformly arranged along mounting disc circumferencial direction.
It is an advantage of the invention that bistrique is mounted on by radial tightening device on mobile holder, make bistrique that there is flexible float
Function, bistrique is close to sealing surface of seat always in process of lapping so that the sealing surface of seat continuity after grinding and planarization
The sealing matching property of good, highly polished, sealing surface of seat and butterfly plate sealing surface is good.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the partial structural diagram that flexible pre-tightening mechanism is connected with each other with mounting disc in Fig. 1 of the present invention.
Specific implementation mode
The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat as shown in Figure 1, including chuck 14 and grinding device, card
14 end face of disk is fixedly mounted on machine tool chief axis 15, and valve body 16 is fixedly mounted in other end, and machine tool chief axis 15 drives chuck 14
It is rotated with valve body 16, grinding device is made of bistrique 1 and mobile holder 7, and bistrique 1 is cylindrical grinding wheel；Bistrique 1 passes through radial tightening
Device is mounted in the mounting disc 13 of mobile holder 7, and the radial tightening device is using flexible pre-tightening mechanism, and bistrique 1 is by axis pin 8
It is movably arranged on flexible pre-tightening mechanism upper end, is connected with each other using tray 11 between mobile holder 7 and platen 17, pallet
11 can move axially on platen 17, and axial direction mentioned here refers to the axis direction of machine tool chief axis 15.
The flexibility pre-tightening mechanism is spring pretightening mechanism, by 10 groups of link 2, link block 9, square groove block 12 and spring
At square groove block 12 is fixedly mounted on by screw 6 in the mounting disc 13 of mobile holder 7, and bistrique 1 is mounted on link 2 by shaft 18
On, shaft 18 can rotate on link 2, and using the interconnection of axis pin 8, the two can be with for 2 lower part of link and 9 top of link block
It is fulcrum rotation with axis pin 8, the square of 9 lower part of link block is movably embedded into the square groove in square groove block 12, and link block 9 can be
It is moved radially in the square groove of square groove block 12, radial direction mentioned here refers to and 15 axis vertical direction of machine tool chief axis.Spring 10 is pacified
Between spring eye in the lower face and square groove block 12 of 9 lower part square of link block, spring 10 push bistrique 1 it is radial hold out against with
Sealing surface of seat contacts, and bistrique 1 is close to sealing surface of seat surface always in process of lapping, the sealing surface of seat curved surface after grinding
Continuously, smooth, smooth.Radial adjustment device is set on spring pretightening mechanism, to adjust the phase of bistrique 1 and sealing surface of seat
To position.
The flexibility pre-tightening mechanism is hydraulic piston mechanism, is made of link 2, piston cylinder, piston, piston rod, bistrique 1
It is mounted on link 2 by shaft 18, piston cylinder is arranged in mounting disc 13, is adopted between 2 lower part of link and piston rod upper end
It is connected with each other with axis pin 8, the rodless cavity of piston cylinder is connected to hydraulic pump.
Secondary spring 3 is installed respectively between 12 upper surface of 2 lower face of link and square groove block of 8 both sides of axis pin, is assisted
Spring 3 applies radial elastic power to link 2, and bistrique 1 is preferably adjacent to sealing surface of seat when link 2 being made to be rotated with axis pin 8,
Bistrique 1 is set to change with the variation of sealing surface of seat, external cylindrical surface is close to sealing surface of seat, realizes flexible contact.
One end of shaft 18 is fixedly connected with 5 output shaft of motor, and 5 shell of motor is fixedly mounted on the side of link 2.It grinds
Bistrique 1 and 16 relative rotation of valve body, accelerate grinding rate when mill.
Flexible pre-tightening mechanism uses three, is uniformly arranged along 13 circumferencial direction of mounting disc, as shown in Figure 2.
Fixed cover 4 is installed in 12 side of square groove block, and the fixed cover 4 is by the closing of link block 9 mounted on the square groove of square groove block 12
It is interior.
Claims (9)
1. a kind of flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat, including chuck（14）And grinding device, chuck（14）
End face is fixedly mounted on machine tool chief axis（15）On, valve body is fixedly mounted in other end（16）, grinding device is by bistrique（1）And shifting
Dynamic holder（7）Composition；It is characterized in that bistrique（1）It is mounted on mobile holder by radial tightening device（7）Mounting disc（13）On,
The radial tightening device is using flexible pre-tightening mechanism, bistrique（1）By axis pin（8）It is movably arranged on flexible pre-tightening mechanism upper end.
2. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat according to claim 1, it is characterized in that the flexibility
Pre-tightening mechanism is spring pretightening mechanism, by link（2）, link block（9）, square groove block（12）And spring（10）Composition, square groove block
（12）It is fixedly mounted on mobile holder（7）Mounting disc（13）It is interior, bistrique（1）By shaft（18）Mounted on link（2）On, even
Connect frame（2）Lower part and link block（9）Top uses axis pin（8）It is connected with each other, link block（9）The square side of being movably embedded into of lower part
Geosynclinal block（12）Inside square groove in, spring（10）Mounted on link block（9）The lower face of lower part square and square groove block（12）Interior
Between spring eye.
3. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat according to claim 1, it is characterized in that the flexibility
Pre-tightening mechanism is hydraulic piston mechanism, by link（2）, piston cylinder, piston, piston rod composition, bistrique（1）By shaft（18）Peace
Mounted in link（2）On, piston cylinder is arranged in mounting disc（13）On, link（2）Pass through pin between lower part and piston rod upper end
Axis（8）It is connected with each other, the rodless cavity of piston cylinder is connected to hydraulic pump.
4. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat according to claim 1 or 2, it is characterized in that in axis pin
（8）The link of both sides（2）Lower face and square groove block（12）Secondary spring is installed respectively between upper surface（3）.
5. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat according to claim 3, it is characterized in that in axis pin（8）
The link of both sides（2）Secondary spring is installed respectively between lower face and piston cylinder upper surface（3）.
6. the flexible grinding device of the three-eccentric-butterfly-valve sealing surface of seat according to claims 1 or 2 or 3 or 5, it is characterized in that
Shaft（18）One end and motor（5）Output shaft is fixedly connected, motor（5）Shell is fixedly mounted on link（2）Side.
7. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat according to claim 4, it is characterized in that shaft（18）
One end and motor（5）Output shaft is fixedly connected, motor（5）Shell is fixedly mounted on link（2）Side.
8. the flexible grinding device of the three-eccentric-butterfly-valve sealing surface of seat according to claims 1 or 2 or 3 or 5, it is characterized in that
Flexible pre-tightening mechanism uses three, along mounting disc（13）Circumferencial direction is uniformly arranged.
9. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat according to claim 4, it is characterized in that flexible pre-tighten
Mechanism uses three, along mounting disc（13）Circumferencial direction is uniformly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810453428.XA CN108544328A (en) | 2018-05-14 | 2018-05-14 | The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810453428.XA CN108544328A (en) | 2018-05-14 | 2018-05-14 | The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108544328A true CN108544328A (en) | 2018-09-18 |
Family
ID=63494551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810453428.XA Pending CN108544328A (en) | 2018-05-14 | 2018-05-14 | The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108544328A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507895A (en) * | 1981-04-08 | 1985-04-02 | Mitutoyo Mfg. Co. Ltd. | Radially adjustable internal grinder |
| CN103894357A (en) * | 2014-03-10 | 2014-07-02 | 辽宁工程技术大学 | Anticorrosion and maintenance all-in-one machine for tower-type inner walls |
| CN105538123A (en) * | 2016-02-04 | 2016-05-04 | 常州南车柴油机零部件有限公司 | Special-shaped inner hole honing head and construction method thereof |
| CN206925711U (en) * | 2017-04-27 | 2018-01-26 | 上海电力股份有限公司吴泾热电厂 | Digital display lapping device for steam valve sealing surface |
| CN208246478U (en) * | 2018-05-14 | 2018-12-18 | 科福龙阀门集团有限公司 | The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat |
-
2018
- 2018-05-14 CN CN201810453428.XA patent/CN108544328A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507895A (en) * | 1981-04-08 | 1985-04-02 | Mitutoyo Mfg. Co. Ltd. | Radially adjustable internal grinder |
| CN103894357A (en) * | 2014-03-10 | 2014-07-02 | 辽宁工程技术大学 | Anticorrosion and maintenance all-in-one machine for tower-type inner walls |
| CN105538123A (en) * | 2016-02-04 | 2016-05-04 | 常州南车柴油机零部件有限公司 | Special-shaped inner hole honing head and construction method thereof |
| CN206925711U (en) * | 2017-04-27 | 2018-01-26 | 上海电力股份有限公司吴泾热电厂 | Digital display lapping device for steam valve sealing surface |
| CN208246478U (en) * | 2018-05-14 | 2018-12-18 | 科福龙阀门集团有限公司 | The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180918 |