CN106695537A - Eccentric grinding tool for sealing face of valve sealing part - Google Patents
Eccentric grinding tool for sealing face of valve sealing part Download PDFInfo
- Publication number
- CN106695537A CN106695537A CN201611054054.1A CN201611054054A CN106695537A CN 106695537 A CN106695537 A CN 106695537A CN 201611054054 A CN201611054054 A CN 201611054054A CN 106695537 A CN106695537 A CN 106695537A
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- China
- Prior art keywords
- grinding
- bar segment
- bar
- segment
- main body
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to an eccentric grinding tool for the sealing face of a valve sealing part. The eccentric grinding tool comprises a grinding rod and a grinding tool main body. The grinding rod is of a multi-section structure and comprises a first grinding rod section, a second grinding rod section, a third grinding rod section and a fourth grinding rod section which are connected in sequence. The second grinding rod section, the third grinding rod section and the fourth grinding rod section are arranged concentrically. The first grinding rod section and the second grinding rod section are arranged eccentrically. A groove allowing the fourth grinding rod section of the grinding rod to be inserted into is formed in the middle of the upper end of the grinding tool main body. An annular grinding cuter corresponding to the sealing face of the valve sealing part is arranged at the bottom end of the grinding tool main body. The eccentric grinding tool has the advantages that through the eccentric arrangement, the motion trial of the grinding cutter is changed into a spiral trail during grinding, the convexity phenomenon of the sealing face due to concentric circle trails is avoided, and thus the grinding planeness of the sealing face is high.
Description
Technical field
The present invention relates to valve manufacture field, the sealing surface bias grinding tool of more particularly to a kind of valve sealing element.
Background technology
Further go deep into as China is industrialized, in the industries such as chemical industry, boiler, pressure vessel, safety valve, cut-off
The valve of all kinds of forms such as valve, gate valve, using widely.Due to valve in use, sealing surface is used medium for a long time
Erosion, washed away by foreign matter in gas, fluid for a long time, wearing and tearing of often switching.The sealing surface of valve sealing element will be made
Flatness be damaged, cause valve leak, cause waste and the economic loss of raw material.Therefore, in order to avoid valve is abandoned, cause
Waste, it is necessary to use the sealing surface grinding of valve sealing element.
At present, the sealing surface grinding of the valve sealing element for using when being ground to sealing surface, its grinding tool for using
To be the grinding tool being arranged concentrically with the sealing surface of the valve sealing element for needing press mold, it is being ground by such grinding tool
When, it is high outer ring linear velocity easily occur, and grinding is fast, and inner ring linear velocity is low, and grinding is slow, so as to cause to be shown especially during front cover does not occur
As, sealing effectiveness is influenceed, reduce its service life, it is sometimes desirable to artificial secondary grinding, the trouble for comparing.
The content of the invention
The technical problem to be solved in the present invention be to provide it is a kind of ensure the flatness of sealing surface, long service life valve it is close
The sealing surface bias grinding tool of sealing.
In order to solve the above technical problems, the technical scheme is that：A kind of eccentric grinding of the sealing surface of valve sealing element
Grinding tool, its innovative point is：The grinding tool is arranged on grinder or drilling machine and enters for the sealing surface to valve sealing element
Row grinding, including
One milling bar, the milling bar be multi-segment structure, including be sequentially connected first grinding bar segment, second grinding bar segment,
3rd grinding bar segment, the 4th grinding bar segment, wherein, the first grinding bar segment, the second grinding bar segment are cylindrical, the 3rd grinding bar segment
In coniform, the 4th grinding bar segment is in that, than flat, and the second grinding bar segment, the 3rd grinding bar segment, the 4th grinding bar segment are concentric
Set, the first grinding bar segment grinds bar segment eccentric setting with second, the 4th grinding bar segment is arranged on grinder or drilling machine,
And can be driven by grinder or drilling machine and carry out 360 ° along the axis of the 4th grinding bar segment and rotate freely；
One grinding tool main body, the grinding tool main body is in inverted T-shape shape, and the grinding tool main body is same with the first grinding bar segment
The heart is set, and has the first of an appearance milling bar to grind the hole that bar segment is stretched into the upper center position of grinding tool main body,
The bottom of grinding tool main body has a ring-type grinding knife tool corresponding with the sealing surface of valve sealing element.
Further, it is arc-shaped transition between the 3rd grinding bar segment and the 4th grinding bar segment.
Further, the eccentricity value between the first grinding bar segment and the second grinding bar segment is seal f ace width to be processed
1/2-1/3.
The advantage of the invention is that：In the present invention, it is designed as partially with the second grinding bar segment by by the first grinding bar segment
The heart is set, and the second grinding bar segment, the 3rd grinding bar segment, the 4th grinding bar segment are and are arranged concentrically, so that in grinding,
The movement locus of grinding knife tool changes into spiral track, it is to avoid the outer ring linear velocity that concentric circular tracks occur is high, and grinding is fast,
And inner ring linear velocity is low, grinding is slow, the convexity phenomenon that sealing surface occurs so that the flatness of sealing surface grinding is high, and uses
Spiral track is conducive to medium-tight, and grinding efficiency is high, can directly use mechanical lapping, is not required to additional hand lapping.
By the way that arc-shaped transition will be designed as between the 3rd grinding bar segment and the 4th grinding bar segment, equivalent to the taper shank of drill bit,
Facilitate the installation of milling bar and use.
Controlled the 1/ of seal f ace width to be processed for the eccentricity value between the first grinding bar segment and the second grinding bar segment
2-1/3, so that the goodness of fit between the sealing surface of grinding is higher.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 be valve sealing element of the invention sealing surface bias grinding tool in milling bar schematic diagram.
Fig. 2 is the A direction views of Fig. 1.
Fig. 3 be valve sealing element of the invention sealing surface bias grinding tool in grinding tool main body schematic diagram.
Fig. 4 is the schematic diagram of the sealing surface bias grinding tool of valve sealing element of the invention.
Specific embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
A kind of sealing surface bias grinding tool of valve sealing element as Figure 1-Figure 4, including
One milling bar, the milling bar is multi-segment structure, including the first grinding grinding bar segment of bar segment 1, second being sequentially connected
2nd, the 3rd grinding grinding bar segment 4 of bar segment the 3, the 4th, wherein, the first grinding grinding of bar segment 1, second bar segment 2 is cylindrical, and the 3rd grinds
Mill bar section 3 is in coniform, and the 4th grinding bar segment 4 is in flat, and the second grinding grinding grinding of bar segment the 3, the 4th of bar segment the 2, the 3rd
Bar segment 4 is arranged concentrically, and the first grinding grinding of bar segment 1 and second bar segment eccentric 2 is set, as shown in Fig. 2 the 4th grinding bar segment 4 is pacified
On grinder or drilling machine, and 360 ° of freedom can be carried out along the axis of the 4th grinding bar segment 4 by grinder or drilling machine drive
Rotation.
Eccentricity value between the first grinding grinding bar segment 2 of bar segment 1 and second is the 1/2-1/3 of seal f ace width to be processed.
The 1/2-1/3 in seal f ace width to be processed is controlled for the eccentricity value between the first grinding grinding bar segment 2 of bar segment 1 and second,
So that the goodness of fit between the sealing surface of grinding is higher.
It is arc-shaped transition between the 3rd grinding grinding bar segment 4 of bar segment 3 and the 4th.Bar segment 3 and the 4th is ground by by the 3rd
Arc-shaped transition is designed as between grinding bar segment 4, equivalent to the taper shank of drill bit, is facilitated the installation of milling bar and is used.
One grinding tool main body 5, the grinding tool main body 5 is in inverted T-shape shape, the grinding tool main body 5 and first grinding
Bar segment 1 is arranged concentrically, and is stretched in the first grinding bar segment 1 that the upper center position of grinding tool main body 5 has an appearance milling bar
The hole 6 for entering, has a ring-type grinding knife tool 7 corresponding with the sealing surface of valve sealing element in the bottom of grinding tool main body 5.
When being ground, it is set for the eccentric by the way that the first grinding bar segment 1 is designed with the second grinding bar segment 2, and second
The grinding grinding grinding of bar segment the 3, the 4th bar segment 4 of bar segment the 2, the 3rd is and is arranged concentrically, and first grinds bar segment 1 and grinding tool main body
5 are and are arranged concentrically, so that in grinding, the movement locus of grinding knife tool 7 changes into spiral track, it is to avoid with one heart
The outer ring linear velocity that Circular test occurs is high, and grinding is fast, and inner ring linear velocity is low, and grinding is slow, and the convexity phenomenon that sealing surface occurs makes
The flatness for obtaining sealing surface grinding is high, and is conducive to medium-tight using spiral track, and grinding efficiency is high, can directly use machine
Tool grinds, and is not required to additional hand lapping.
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appending claims and its equivalent thereof.
Claims (3)
1. a kind of valve sealing element sealing surface bias grinding tool, it is characterised in that：The grinding tool be arranged on grinder or
It is ground on drilling machine and for the sealing surface to valve sealing element, including
One milling bar, the milling bar be multi-segment structure, including be sequentially connected first grinding bar segment, second grinding bar segment,
3rd grinding bar segment, the 4th grinding bar segment, wherein, the first grinding bar segment, the second grinding bar segment are cylindrical, the 3rd grinding bar segment
In coniform, the 4th grinding bar segment is in that, than flat, and the second grinding bar segment, the 3rd grinding bar segment, the 4th grinding bar segment are concentric
Set, the first grinding bar segment grinds bar segment eccentric setting with second, the 4th grinding bar segment is arranged on grinder or drilling machine,
And can be driven by grinder or drilling machine and carry out 360 ° along the axis of the 4th grinding bar segment and rotate freely；
One grinding tool main body, the grinding tool main body is in inverted T-shape shape, and the grinding tool main body is same with the first grinding bar segment
The heart is set, and has the first of an appearance milling bar to grind the hole that bar segment is stretched into the upper center position of grinding tool main body,
The bottom of grinding tool main body has a ring-type grinding knife tool corresponding with the sealing surface of valve sealing element.
2. valve sealing element according to claim 1 sealing surface bias grinding tool, it is characterised in that：Described 3rd grinds
It is arc-shaped transition between the grinding bar segments of mill bar Duan Yu tetra-.
3. valve sealing element according to claim 1 sealing surface bias grinding tool, it is characterised in that：Described first grinds
Eccentricity value between mill bar section and the second grinding bar segment is the 1/2-1/3 of seal f ace width to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054054.1A CN106695537A (en) | 2016-11-25 | 2016-11-25 | Eccentric grinding tool for sealing face of valve sealing part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054054.1A CN106695537A (en) | 2016-11-25 | 2016-11-25 | Eccentric grinding tool for sealing face of valve sealing part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106695537A true CN106695537A (en) | 2017-05-24 |
Family
ID=58933942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611054054.1A Pending CN106695537A (en) | 2016-11-25 | 2016-11-25 | Eccentric grinding tool for sealing face of valve sealing part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106695537A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1015438A (en) * | 1964-02-06 | 1965-12-31 | Jose Vivas Ciurana | Device for grinding engine valves |
| JPH05200663A (en) * | 1992-01-22 | 1993-08-10 | Kanden Kogyo Kk | Valve element seat fitting machine |
| CN203156512U (en) * | 2013-04-12 | 2013-08-28 | 西安泵阀总厂有限公司 | Mechanical grinding device of return valve sealing face |
| CN103433842A (en) * | 2013-09-23 | 2013-12-11 | 南通龙源电站阀门有限公司 | Eccentric grinding tool of valve body |
| CN204430997U (en) * | 2015-02-07 | 2015-07-01 | 浙江商业职业技术学院 | A kind of novel valve device for grinding sealing face |
| CN206216470U (en) * | 2016-11-25 | 2017-06-06 | 南通龙源电站阀门有限公司 | A kind of sealing surface bias grinding tool of valve sealing element |
-
2016
- 2016-11-25 CN CN201611054054.1A patent/CN106695537A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1015438A (en) * | 1964-02-06 | 1965-12-31 | Jose Vivas Ciurana | Device for grinding engine valves |
| JPH05200663A (en) * | 1992-01-22 | 1993-08-10 | Kanden Kogyo Kk | Valve element seat fitting machine |
| CN203156512U (en) * | 2013-04-12 | 2013-08-28 | 西安泵阀总厂有限公司 | Mechanical grinding device of return valve sealing face |
| CN103433842A (en) * | 2013-09-23 | 2013-12-11 | 南通龙源电站阀门有限公司 | Eccentric grinding tool of valve body |
| CN204430997U (en) * | 2015-02-07 | 2015-07-01 | 浙江商业职业技术学院 | A kind of novel valve device for grinding sealing face |
| CN206216470U (en) * | 2016-11-25 | 2017-06-06 | 南通龙源电站阀门有限公司 | A kind of sealing surface bias grinding tool of valve sealing element |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |