CN208246478U - 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
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- CN208246478U CN208246478U CN201820706504.9U CN201820706504U CN208246478U CN 208246478 U CN208246478 U CN 208246478U CN 201820706504 U CN201820706504 U CN 201820706504U CN 208246478 U CN208246478 U CN 208246478U
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- sealing surface
- butterfly
- eccentric
- grinding device
- bistrique
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Abstract
The utility model relates to a kind of flexible grinding devices of three-eccentric-butterfly-valve sealing surface of seat, including including chuck and grinding device, one end face of chuck is 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 bracket；Mainly bistrique is mounted on mobile bracket by radial floating device, the radial floating device is made of connection frame, link block, square groove block and spring, make bistrique that there is flexible float function, bistrique is close to sealing surface of seat always during the grinding process, so that sealing surface of seat continuity after grinding and planarization is good, highly polished, good seal performance.Grinding tool suitable for three-eccentric-butterfly-valve sealing surface of seat.
Description
Technical field
The utility model relates to a kind of milling apparatus, specifically grinding about a kind of three-eccentric-butterfly-valve sealing surface of seat
Mill apparatus.
Background technique
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 various industries 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 adds the high quality of its sealing surface
Work is always the difficult point in domestic industry.Currently, the grinding technics of conventional three-eccentric-butterfly-valve sealing surface of seat, usually by valve
Body is mounted in grade bar tooling, is ground using the sanding machine bistrique on lathe to sealing surface of seat, 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, sealing surface of seat is close with butterfly plate
Sealing matching property between cover 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, poor sealing performance.
Summary of the invention
The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of sealing surface continuity and planarization
The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat good, highly polished, sealing matching property is good.
The technical solution of the utility model includes chuck and grinding device, and one end face of chuck is fixedly mounted on machine tool chief axis
On, valve body is fixedly mounted in other end, and grinding device is made of bistrique and mobile bracket；Mainly bistrique is filled by radial tightening
It sets and is mounted in the mounting disc of mobile bracket, the radial tightening device is pacified using flexible pre-tightening mechanism, bistrique by pin shaft activity
Mounted in flexible pre-tightening mechanism upper end.
Preferably, the flexible pre-tightening mechanism is spring pretightening mechanism, by connection frame, link block, square groove block and groups of springs
At square groove block is fixedly mounted in the mounting disc of mobile bracket by screw, and bistrique is mounted on connection frame by shaft, under connection frame
Portion and link block top are connected with each other using pin shaft, 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 end surface and square groove block of link block lower part square.
Preferably, the flexible pre-tightening mechanism is hydraulic piston mechanism, by connection frame, piston cylinder, piston, piston rod group
At bistrique is mounted on connection frame by shaft, and piston cylinder is arranged in mounting disc, is adopted between connection frame lower part and piston rod upper end
It is connected with each other with pin shaft, the rodless cavity of piston cylinder is connected to hydraulic pump.
Preferably, secondary spring is installed respectively between the connection frame lower end surface and square groove block upper surface of pin shaft two sides.
Preferably, one end of shaft is fixedly connected with motor output shaft, and motor housing is fixedly mounted on the side of connection frame.
Preferably, flexible pre-tightening mechanism uses three, is uniformly arranged along mounting disc circumferencial direction.
The utility model has the advantages that bistrique is mounted on mobile bracket by radial tightening device, make bistrique that there is flexibility
Float function, bistrique is close to sealing surface of seat always during the grinding process, so that the sealing surface of seat continuity peace after grinding
Whole property is good, the sealing matching property of highly polished, sealing surface of seat and butterfly plate sealing surface is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is flexible pre-tightening mechanism and mounting disc partial structural diagram interconnected in the utility model Fig. 1.
Specific embodiment
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 1 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 bracket 7, and bistrique 1 is cylindrical grinding wheel；Bistrique 1 passes through radial tightening
Device is mounted in the mounting disc 13 of mobile bracket 7, and the radial tightening device is using flexible pre-tightening mechanism, and bistrique 1 is by pin shaft 8
It is movably arranged on flexible pre-tightening mechanism upper end, is connected with each other between mobile bracket 7 and platen 17 using tray 11, 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 connection frame 2, link block 9, square groove block 12 and 10 groups of spring
At square groove block 12 is fixedly mounted in the mounting disc 13 of mobile bracket 7 by screw 6, and bistrique 1 is mounted on connection frame 2 by shaft 18
On, shaft 18 can rotate on connection frame 2, and using the interconnection of pin shaft 8, the two can be with for 2 lower part of connection frame and 9 top of link block
It is fulcrum rotation with pin shaft 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 end surface 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
Valve base sealing face contact, bistrique 1 is close to sealing surface of seat surface, the sealing surface of seat curved surface after grinding always during the grinding process
Continuously, smooth, smooth.Radial adjustment device can be set in spring pretightening mechanism, to adjust bistrique 1 and sealing surface of seat
Relative position.
The flexibility pre-tightening mechanism is hydraulic piston mechanism, is made of connection frame 2, piston cylinder, piston, piston rod, bistrique 1
It is mounted on connection frame 2 by shaft 18, piston cylinder is arranged in mounting disc 13, adopts between 2 lower part of connection frame and piston rod upper end
It is connected with each other with pin shaft 8, the rodless cavity of piston cylinder is connected to hydraulic pump.
Between 12 upper surface of 2 lower end surface of connection frame and square groove block of 8 two sides of pin shaft secondary spring 3 is installed respectively, assists
Spring 3 applies radial elastic power to connection frame 2, and bistrique 1 is preferably adjacent to sealing surface of seat when rotating connection frame 2 with pin shaft 8,
Change bistrique 1 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 connection frame 2.It grinds
Bistrique 1 and 16 relative rotation of valve body when mill, accelerate grinding rate.
Flexible pre-tightening mechanism uses three, is uniformly arranged along 13 circumferencial direction of mounting disc, as shown in Figure 2.
Fixed lid 4 is installed in 12 side of square groove block, which closes link block 9 square groove for being mounted on 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)
One end face is fixedly mounted on machine tool chief axis (15), and valve body (16) are fixedly mounted in other end, and grinding device is by bistrique (1) and moves
Dynamic bracket (7) composition, bistrique (1) are cylindrical grinding wheel；It is characterized in that bistrique (1) is mounted on mobile bracket by radial tightening device
(7) in mounting disc (13), the radial tightening device is movably arranged on using flexible pre-tightening mechanism, bistrique (1) by pin shaft (8)
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, is made of connection frame (2), link block (9), square groove block (12) and spring (10), square groove block
(12) it is fixedly mounted on by screw (6) in the mounting disc (13) of mobile bracket (7), bistrique (1) is mounted on connection by shaft (18)
On frame (2), connection frame (2) lower part and link block (9) top are connected with each other using pin shaft (8), and the square of link block (9) lower part is living
Dynamic to be inlaid in the inside square groove of square groove block (12), spring (10) is mounted on lower end surface and the square groove of link block (9) lower part square
Between spring eye in block (12).
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, is made of connection frame (2), piston cylinder, piston, piston rod, and bistrique (1) is pacified by shaft (18)
On connection frame (2), piston cylinder is arranged on mounting disc (13), passes through pin between connection frame (2) lower part and piston rod upper end
Axis (8) is connected with each other, and 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 pin shaft
(8) secondary spring (3) are installed respectively between connection frame (2) lower end surface of two sides and square groove block (12) upper surface.
5. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat according to claim 3, it is characterized in that in pin shaft (8)
Secondary spring (3) are installed respectively between connection frame (2) lower end surface of two sides and piston cylinder upper surface.
6. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat described according to claim 1 or 2 or 3 or 5, it is characterized in that
One end of shaft (18) is fixedly connected with motor (5) output shaft, and motor (5) shell is fixedly mounted on the side of connection frame (2).
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 be fixedly connected with motor (5) output shaft, motor (5) shell is fixedly mounted on the side of connection frame (2).
8. the flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat described according to claim 1 or 2 or 3 or 5, it is characterized in that
Flexible pre-tightening mechanism uses three, and 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, and along mounting disc (13), circumferencial direction is uniformly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820706504.9U CN208246478U (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 |
|---|---|---|---|
| CN201820706504.9U CN208246478U (en) | 2018-05-14 | 2018-05-14 | The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat |
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| Publication Number | Publication Date |
|---|---|
| CN208246478U true CN208246478U (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820706504.9U Active CN208246478U (en) | 2018-05-14 | 2018-05-14 | The flexible grinding device of three-eccentric-butterfly-valve sealing surface of seat |
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| CN (1) | CN208246478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544328A (en) * | 2018-05-14 | 2018-09-18 | 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 CN201820706504.9U patent/CN208246478U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544328A (en) * | 2018-05-14 | 2018-09-18 | 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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