CN203837642U - Measuring tool of Y-axial symmetry degree of valve seat hole in valve body - Google Patents
Measuring tool of Y-axial symmetry degree of valve seat hole in valve body Download PDFInfo
- Publication number
- CN203837642U CN203837642U CN201420253707.9U CN201420253707U CN203837642U CN 203837642 U CN203837642 U CN 203837642U CN 201420253707 U CN201420253707 U CN 201420253707U CN 203837642 U CN203837642 U CN 203837642U
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- China
- Prior art keywords
- valve
- measuring tool
- connecting rod
- valve body
- survey instrument
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- 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.)
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- Indication Of The Valve Opening Or Closing Status (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a measuring tool of the Y-axial symmetry degree of a valve seat hole in a valve body. The measuring tool is composed of a connecting rod (1), semicircular plates (2), a screw (3) and a dial indicator (4); and two ends of the connecting rod (1) are respectively connected with the semicircular plates (2) to form a measuring tool body, the dial indicator (4) is installed at the center of the connecting rod (1) via the screw (3), the length of the measuring tool body is equal to an opening size of the valve body, the arc diameter of each semicircular plate is equal to the diameter of an opening bottom hole, and the whole body forms the measuring tool of the Y-axial symmetry degree. The measuring tool has the advantages of simple structure, low cost, easy operation and the accurate measurement, and assembling precision and sealing performance of a valve are improved.
Description
Technical field
The utility model relates to symmetry survey instrument, is specifically related to a kind of valve body and valve seat hole Y-axis symmetry survey instrument.
Background technology
As everyone knows, because lathe processing exists certain error, so in valve body there is certain error in X, Y-axis two directions in valve seat orifice on symmetry, in valve body, the levels of precision of valve seat orifice symmetry in X-axis, Y-axis two directions directly has influence on valve assembling and sealing, when the error scope of overstepping the extreme limit will exert an influence to assembling; Will cause valve plate installation to depart from valve seat orifice center if error is excessive in X-direction, cause valve rod to coordinate difficulty with valve plate, increase the torsion of valve switch, the scene that affects valve is used; If the center of the excessive side outlet that will cause valve plate center and valve of error does not make the latus rectum test of valve not pass through in a plane in Y direction; So we just need to check the symmetry of valve seat orifice in these two directions in valve body before assembling, guarantee carrying out smoothly of valve assembling and pressure testing; In the time not having special survey instrument to measure the symmetry of valve body center pit, can only judge whether by rule of thumb symmetry.
Summary of the invention
The utility model object is: design a kind of valve body and valve seat hole Y-axis symmetry survey instrument, not only can know accurately in valve body, which direction the practical center of valve seat orifice is partial to, can also know concrete side-play amount is how many, improve assembly precision and the sealing property of valve.
Technical solution of the present utility model is: this Y-axis symmetry survey instrument is made up of connecting rod, semi-circular plate, screw and dial gauge, the two ends of connecting rod connect respectively semi-circular plate composition survey instrument body, middle the heart channel of Hang-Shaoyin screw of connecting rod is installed dial gauge, the length of survey instrument body equals valve body and opens a grade size, the arc diameter of semi-circular plate equals out the diameter of grade bottom outlet, and entirety forms Y-axis symmetry survey instrument.
When Y-axis symmetry survey instrument is measured, the circular arc of semi-circular plate with open crotch bottom outlet and fit together, the survey instrument that swings back and forth is observed the reading of dial gauge, same, it is over there little that dial gauge reading is partial at the center of valve seat orifice, side-play amount is the difference of two readings.
The utility model is simple in structure, with low cost, and processing ease is measured accurately, has improved assembly precision and the sealing property of valve.
Brief description of the drawings
Fig. 1 is valve body and valve seat hole X-axis, Y-axis two direction schematic diagram.
Fig. 2 is Y-axis symmetry survey instrument structural representation.
Fig. 3 is the Y-axis symmetry instrumentation plan of Fig. 2.
In figure: 1 connecting rod, 2 semi-circular plates, 3 screws, 4 dial gauges.
Embodiment
As shown in Figure 2, Y-axis symmetry survey instrument is made up of connecting rod 1, semi-circular plate 2, screw 3 and dial gauge 4, the two ends of connecting rod 1 connect respectively semi-circular plate 2 and form survey instrument body, middle the heart channel of Hang-Shaoyin screw 3 of connecting rod 1 is installed dial gauge 4, the length of survey instrument body equals valve body and opens a grade size, the arc diameter of semi-circular plate equals out the diameter of grade bottom outlet, and entirety forms Y-axis symmetry survey instrument.
Lathe adds circularity, the roughness that also will ensure the semi-circular plate of survey instrument body man-hour; As shown in Figure 1,3, the circular arc of semi-circular plate with open crotch bottom outlet and fit together, observe the reading of dial gauge at positive and negative two directions of the Y-axis survey instrument that swings back and forth; In the time of swing to+Y-direction, the reading of observing dial gauge is denoted as c; In the time of swing to-Y-direction, the reading of observing dial gauge is denoted as d; If c is greater than d, illustrate that side-play amount is c-d in be partial to-Y-direction of Y direction upper valve base hole; If c is less than d, to be partial to+Y-direction, side-play amount is d-c.
Claims (1)
1. valve body and valve seat hole Y-axis symmetry survey instrument, it is characterized in that: it is made up of connecting rod (1), semi-circular plate (2), screw (3) and dial gauge (4), the two ends of connecting rod (1) connect respectively semi-circular plate (2) composition survey instrument body, middle the heart channel of Hang-Shaoyin screw (3) of connecting rod (1) is installed dial gauge (4), the length of survey instrument body equals valve body and opens a grade size, the arc diameter of semi-circular plate equals out the diameter of grade bottom outlet, and entirety forms Y-axis symmetry survey instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253707.9U CN203837642U (en) | 2014-05-19 | 2014-05-19 | Measuring tool of Y-axial symmetry degree of valve seat hole in valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253707.9U CN203837642U (en) | 2014-05-19 | 2014-05-19 | Measuring tool of Y-axial symmetry degree of valve seat hole in valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837642U true CN203837642U (en) | 2014-09-17 |
Family
ID=51515467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253707.9U Active CN203837642U (en) | 2014-05-19 | 2014-05-19 | Measuring tool of Y-axial symmetry degree of valve seat hole in valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837642U (en) |
-
2014
- 2014-05-19 CN CN201420253707.9U patent/CN203837642U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |