CN212205948U - Eccentricity measuring device - Google Patents
Eccentricity measuring device Download PDFInfo
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- CN212205948U CN212205948U CN202021216673.8U CN202021216673U CN212205948U CN 212205948 U CN212205948 U CN 212205948U CN 202021216673 U CN202021216673 U CN 202021216673U CN 212205948 U CN212205948 U CN 212205948U
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- flange
- valve plate
- arc
- measuring device
- positioning rod
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Abstract
The utility model provides an eccentricity measurement device belongs to valve technical field, and wherein, eccentricity measurement device includes: the positioning ring is suitable for being concentrically connected in a central hole of the shell flange, and an arc-shaped measuring plate extending outwards along the axial direction is arranged on the positioning ring; the positioning rod is suitable for being vertically connected to the center of the valve plate, and the cross section of the positioning rod is a regular polygon or a circle; the utility model provides an eccentricity measurement device, holding ring connect with one heart in the centre bore of casing flange, have the arc on the holding ring and measure the board, and the locating lever is connected perpendicularly at the center of valve plate, installs to the casing at the valve plate, uses measuring device to measure the arc and measures the distance between face and the locating lever surface, can judge whether the center of valve plate is at the center in flange hole to can obtain specific eccentric magnitude.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to eccentricity measurement device.
Background
The vacuum equipment is required to be provided with a vacuum valve to realize the on-off function of a vacuum pipeline, wherein the circular flange vacuum valve is connected with the vacuum cavity through a circular flange, and the center of the valve plate is required to be aligned with the center line of the sealing flange hole during sealing in order to ensure good sealing of the circular flange vacuum valve in the pipeline.
However, after the valve plate is installed in the valve body, the edge of the valve plate is blocked by the valve body, so that the eccentric amount of the center of the valve plate is not easy to measure, and the centering degree of the valve plate and the valve body is difficult to adjust.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the center of the valve plate of the circular flange vacuum valve among the prior art and the central line of sealing flange are difficult to measure and adjust to an eccentric measurement device is provided.
In order to solve the technical problem, the utility model provides an eccentric measurement device, include:
the positioning ring is suitable for being concentrically connected in a central hole of the shell flange, and an arc-shaped measuring plate extending outwards along the axial direction is arranged on the positioning ring;
and the positioning rod is suitable for being vertically connected to the center of the valve plate, and the cross section of the positioning rod is a regular polygon or a circle.
Preferably, the retaining ring has an axially inwardly extending flange, the outer surface of the flange being arcuate for sliding contact engagement with the inner surface of the central bore of the housing flange.
As a preferable technical solution, the circumferential diameter of the arc measuring plate is larger than the circumferential diameter of the flange, and the arc measuring plate and the flange are connected through a horizontal connecting ring.
As a preferred technical solution, at least two detaching grooves are provided on the surface of the horizontal connecting ring facing the flange, and are uniformly arranged in the circumferential direction.
As a preferable technical scheme, at least two arc-shaped measuring plates (21) are arranged along the circumferential direction of the positioning ring (2), and the arc-shaped measuring plates (21) are uniformly arranged in the circumferential direction.
As a preferable technical solution, one end of the positioning rod, which is used for being connected with the valve plate, is provided with an external thread which is suitable for being in threaded connection with a hole arranged at the center of the valve plate.
As a preferred embodiment, the end of the positioning rod, which is intended to be connected to the valve plate, has a smooth outer circumferential surface adapted to be inserted into a hole provided in the center of the valve plate.
As a preferable technical solution, the cross section of the outer circumferential surface of one end of the positioning rod for connecting with the valve plate is circular or polygonal.
As a preferable technical solution, the cross section of the other end of the positioning rod is polygonal.
The eccentricity measuring device is used for measuring the eccentricity of the valve plate positioned in the shell, and comprises the following steps:
a positioning rod is vertically connected to the center of the valve plate;
a positioning ring is concentrically connected on the shell flange;
and the distance between the arc-shaped measuring plate of the positioning ring and the positioning rod is measured.
The utility model discloses technical scheme has following advantage:
1. the utility model provides an eccentricity measurement device, holding ring connect with one heart in the centre bore of casing flange, have the arc on the holding ring and measure the board, and the locating lever is connected perpendicularly at the center of valve plate, installs to the casing at the valve plate, uses measuring device to measure the arc and measures the distance between face and the locating lever surface, can judge whether the center of valve plate is at the center in flange hole to can obtain specific eccentric magnitude.
2. The utility model provides an eccentricity measuring device has the flange along the inside extension of axial on the holding ring, and the flange is the arc, is convenient for make the holding ring be connected to the centre bore of casing flange in to guarantee that holding ring and centre bore are in with one heart.
3. The utility model provides an eccentricity measuring device, an arc measuring plate and a flange are connected through a horizontal connecting ring, so that a measuring part is separated from an installation part, and the measuring precision of the measuring part is ensured; the horizontal connecting ring is provided with a dismounting groove, so that the positioning ring can be conveniently dismounted from the central hole of the shell flange.
4. The utility model provides an eccentricity measurement device, arc measurement board evenly are equipped with two on the circumference of holding ring, and the eccentricity of a plurality of angles of surface measurement valve plate of board is measured to the accessible arc.
5. The utility model provides an eccentric measurement device, locating lever can also be through tight fit plug-in connection to the valve plate on through threaded connection to the valve plate, and two kinds of modes homoenergetic make the locating lever install perpendicularly on the valve plate.
6. The utility model provides an eccentric measurement device, the cross section that the valve plate was kept away from to the locating lever one end is the polygon, and the operating personnel of being convenient for passes through operation tip dismouting locating lever.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an eccentricity measuring device provided by the present invention, which is mounted on a housing flange and a valve plate;
FIG. 2 is a schematic view of a retaining ring;
FIG. 3 is a schematic structural view of a positioning rod;
fig. 4 is a flowchart of using the eccentricity measuring device.
Description of reference numerals:
1. a housing; 2. a positioning ring; 21. an arc-shaped measuring plate; 22. disassembling the groove; 23. a flange; 3. positioning a rod; 31. a connecting end; 32. an operation end; 4. a valve plate.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a specific implementation mode of an eccentricity measuring device, as shown in fig. 1, a positioning ring 2 is concentrically connected in a central hole of a flange of a housing 1, an arc-shaped measuring plate 21 is arranged on the positioning ring 2, a positioning rod 3 is perpendicularly connected at the center of a valve plate 4, the valve plate 4 is mounted in the housing 1, the measuring device is used for measuring the distance between the arc-shaped measuring surface and the surface of the positioning rod 3, whether the center of the valve plate 4 is in the center of the flange hole or not can be judged, and a specific eccentricity value can be obtained.
As shown in fig. 2, the positioning ring 2 is provided with a flange 23 extending inwards along the axial direction, the flange 23 is arc-shaped, the outer surface of the flange 23 is attached to the inner surface of the central hole of the flange, so that the positioning ring 2 is connected to the central hole of the flange of the casing 1, and the positioning ring 2 and the central hole are concentric, wherein the positioning ring 2 can be fixedly connected to the central hole through thread connection and can also be connected to the central hole through plug-in connection, when the positioning ring 2 is connected to the central hole of the flange through plug-in connection, the positioning ring 2 can be fixedly plugged in the central hole through tight fit, and can.
The arc-shaped measuring plate 21 in the positioning ring 2 is a measuring part, the flange 23 is an installation part, and the arc-shaped measuring plate 21 and the flange 23 are connected through a horizontal connecting ring, so that the measuring part is separated from the installation part, and the measuring precision of the measuring part is ensured; when the retaining ring 2 is pegged graft with the flange centre bore, be equipped with on horizontal go-between and dismantle recess 22, dismantle recess 22 and be located one side of horizontal go-between towards valve plate 4, and dismantle recess 22 and measure board 21 intercommunication with the arc, dismantle recess 22 and 1 surperficial formation dismantlement hole of casing, operating personnel use tools can prize retaining ring 2 in the dismantlement hole, is convenient for pull down retaining ring 2 from 1 flange centre bores of casing.
As an alternative embodiment, the detachment groove 22 may also be provided outside the arc-shaped measurement plate 21, in which case the detachment groove 22 extends through the entire horizontal connection ring in cross-section.
Two arc-shaped measuring plates 21 are uniformly arranged on the circumference of the positioning ring 2, and the eccentricity of a plurality of angles of the valve plate 4 can be measured through the surface of the arc-shaped measuring plates 21.
As an alternative embodiment, the arc-shaped measuring plate 21 on the positioning ring 2 may also be in the form of a ring arranged along the entire circumference of the positioning ring 2.
As shown in fig. 3, the connecting end 31 of the positioning rod 3 is connected with the valve plate 4, wherein the outer surface of the connecting end 31 of the positioning rod 3 can be provided with external threads and connected to the valve plate 4 through threads, the connecting end 31 of the positioning rod 3 can also be set to be circular or polygonal and inserted into the valve plate 4 through tight fit, and the positioning rod 3 can be vertically installed on the valve plate 4 in both modes.
The cross section of the operation end 32 of the positioning rod 3 is polygonal, so that an operator can conveniently disassemble and assemble the positioning rod 3 through a wrench.
The working principle is as follows:
after valve plate 4 installed to casing 1, install holding ring 2 to 1 flange hole of casing, install locating lever 3 to valve plate 4 on, measure the distance between plate 21 and the 3 surfaces of locating lever are measured to the arc on holding ring 2, can judge whether valve plate 4 aims at with flange hole center according to the numerical value that records.
Example 2
The present embodiment provides a specific implementation manner of an eccentricity measuring method, and with the eccentricity measuring apparatus described in embodiment 1, as shown in fig. 4, the method includes the following steps:
a positioning rod 3 is vertically connected to the center of the valve plate 4, and a connecting end 31 of the positioning rod 3 is vertically arranged in a connecting hole of the valve plate 4;
concentrically connecting a positioning ring 2 on a flange of a shell 1, installing a flange 23 of the positioning ring 2 into a central hole of the flange of the shell 1, and enabling the outer surface of the flange 23 to be in contact with the inner surface of the central hole of the flange;
the distance between the arc-shaped measuring plate 21 of the positioning ring 2 and the positioning rod 3 is measured, and the distance between the outer surface of the arc-shaped measuring plate 21 on the positioning ring 2 and the surface of the positioning rod 3 is measured by using a measuring device.
Wherein, do not restrict the order of being connected of holding ring 2 and locating lever 3, can connect earlier holding ring 3 and then connect holding ring 2, also can connect holding ring 2 earlier and then connect locating lever 3.
The outer surface of the arc-shaped measuring plate 21 on the positioning ring 2 is a first measuring surface, the smooth surface on the positioning rod 3 is a second measuring surface, the point of the measuring device contacting with the first measuring surface is a first measuring point, the point of the measuring device contacting with the second measuring surface is a second measuring point, and a connecting line between the first measuring point and the second measuring point or an extension line of the connecting line passes through the axis of the positioning ring 2.
When the eccentricity measurement is carried out, the measuring device adopts a vernier caliper, the distance between a first measuring point and a second measuring point on a first measuring surface and a second measuring surface is measured by the vernier caliper, data a is obtained, the position which is symmetrical to the first measuring point about the axis of the positioning ring 2 on the first measuring surface is a third measuring point, the position which is symmetrical to the second measuring point about the axis of the positioning rod 3 on the second measuring surface is a fourth measuring point, the distance between the third measuring point and the fourth measuring point is measured by the vernier caliper, data b is obtained, the eccentricity between the valve plate 4 and the flange hole is equal to (a-b)/2 equal mm, the eccentricity of different angles is measured, the valve plate 4 is moved, and the centering degree of the valve plate 4 and the flange hole can be adjusted.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. An eccentricity measuring device, comprising:
the positioning ring (2) is suitable for being concentrically connected in a central hole of a flange of the shell (1), and an arc-shaped measuring plate (21) extending outwards along the axial direction is arranged on the positioning ring (2);
and the positioning rod (3) is suitable for being vertically connected to the center of the valve plate (4), and the cross section of the positioning rod is a regular polygon or a circle.
2. Eccentricity measuring device according to claim 1, wherein the positioning ring (2) has an axially inwardly extending flange (23) thereon, the outer surface of the flange (23) being arcuate in shape adapted for sliding contact engagement with the inner surface of the central bore of the flange of the housing (1).
3. Eccentricity measuring device according to claim 2, characterized in that the circumferential diameter of the arc-shaped measuring plate (21) is larger than the circumferential diameter of the flange (23), and the arc-shaped measuring plate (21) is connected to the flange (23) by means of a horizontal connecting ring.
4. Eccentricity measuring device according to claim 3, characterised in that on the surface of the horizontal connecting ring facing the flange (23) there are provided at least two detachment grooves (22) uniformly arranged in the circumferential direction.
5. Eccentricity measuring device according to any one of claims 2 to 4, wherein the arc-shaped measuring plates (21) are arranged at least two in the circumferential direction of the positioning ring (2), and the arc-shaped measuring plates (21) are arranged uniformly in the circumferential direction.
6. Eccentricity measuring device according to claim 5, characterized in that the end of the positioning rod (3) intended to be connected to the valve plate (4) has an external thread adapted to be screwed to a hole provided in the centre of the valve plate (4).
7. Eccentricity measuring device according to claim 5, characterized in that the end of the positioning rod (3) intended to be connected to the valve plate (4) has a smooth outer circumferential surface adapted to be inserted into a hole provided in the centre of the valve plate (4).
8. The eccentricity measuring device according to claim 7, wherein the positioning rod (3) has a circular or polygonal cross-section at the outer circumferential surface of the end thereof for connection with the valve plate (4).
9. Eccentricity measuring device according to any one of claims 6 to 8, characterized in that the cross-section of the other end of the positioning rod (3) is polygonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216673.8U CN212205948U (en) | 2020-06-24 | 2020-06-24 | Eccentricity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216673.8U CN212205948U (en) | 2020-06-24 | 2020-06-24 | Eccentricity measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212205948U true CN212205948U (en) | 2020-12-22 |
Family
ID=73817649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021216673.8U Active CN212205948U (en) | 2020-06-24 | 2020-06-24 | Eccentricity measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212205948U (en) |
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2020
- 2020-06-24 CN CN202021216673.8U patent/CN212205948U/en active Active
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Zening Inventor after: Sun Weihua Inventor after: Zhang Kuibang Inventor after: Qi Ying Inventor after: Chen Lin Inventor before: Liu Zening Inventor before: Sun Weihua Inventor before: Zhang Kuibang Inventor before: Ma Xiangang Inventor before: Qi Ying |