CN219914221U - Special caliper suitable for oval conical surface measurement - Google Patents
Special caliper suitable for oval conical surface measurement Download PDFInfo
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- CN219914221U CN219914221U CN202321159548.1U CN202321159548U CN219914221U CN 219914221 U CN219914221 U CN 219914221U CN 202321159548 U CN202321159548 U CN 202321159548U CN 219914221 U CN219914221 U CN 219914221U
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- measuring
- vernier
- included angle
- claw
- sealing
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- 238000004441 surface measurement Methods 0.000 title description 3
- 238000007789 sealing Methods 0.000 claims abstract description 89
- 210000000078 claw Anatomy 0.000 claims abstract description 42
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses a special caliper suitable for measuring an elliptic conical surface, which comprises a vernier caliper body, wherein a first measuring claw and a second measuring claw which can slide are arranged on the vernier caliper body; the first measuring claw is provided with a first measuring head, the second measuring claw is provided with a second measuring head, the first measuring head is provided with a first measuring surface and a second measuring surface which are arranged oppositely, and the second measuring head is provided with a third measuring surface and a fourth measuring surface; when the first measuring surface and the fourth measuring surface are used for matching and positioning the inner elliptic conical surface of the valve seat, the vernier scale and the vernier caliper body are matched to measure the nominal inner diameter of the inner elliptic conical surface of the valve seat; when the second measuring surface and the third measuring surface are used for matching and positioning the outer elliptic conical surface of the sealing ring, the vernier scale and the vernier caliper body are matched to measure the nominal outer diameter of the outer elliptic conical surface of the sealing ring; is suitable for specific elliptic conical surface nominal diameter measurement.
Description
Technical Field
The utility model relates to the technical field of measuring tools, in particular to a special caliper suitable for measuring an elliptical conical surface.
Background
The butterfly valve with the triple eccentric structure has a third eccentric, so that a machined rotating surface of a valve body sealing belt is an inclined cone, a sealing belt is formed by combining a sealing ring and a valve seat, an outer elliptic conical surface is arranged on the sealing ring, an inner elliptic conical surface is arranged on the valve seat, when the butterfly valve with the triple eccentric structure is specifically designed, the eccentric setting angle of the formed sealing surface is specific, and the caliber of the corresponding butterfly valve can be changed, thereby forming a series of valve structures based on the same eccentric sealing setting, and measuring the sizes of the outer elliptic conical surface and the inner elliptic conical surface after the sealing ring and the valve seat are machined so as to ensure the realization of design parameters.
In the prior art, the sealing ring is adopted as a measuring tool of the valve seat for trial assembly, and the valve seat is adopted as the measuring tool of the sealing ring for trial assembly, so that the valve of each size series needs a specific measuring tool and cannot be used for acquiring design parameters generally and rapidly because the standard sealing ring structure and the valve seat structure are mainly used as reference measuring standard during measurement.
After the above problems are considered, after corresponding research is performed on parameter calculation in the design process, it is found that the nominal inner diameter between the inner conical surfaces of the machining forming can be measured quickly after being positioned based on the inner conical surfaces, and the nominal outer diameter between the outer conical surfaces can be measured quickly after being positioned based on the outer conical surfaces, but the measurement positioning based on the inner conical surfaces and the outer conical surfaces cannot be realized by the existing measuring tool at present, so that larger errors exist in measured data.
Disclosure of Invention
First technical problem
The utility model aims to provide a special caliper suitable for measuring an elliptical conical surface, and solves the problem that a measuring tool in the prior art cannot accurately measure the conical surface sizes of a valve seat and a sealing ring.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the special caliper comprises a vernier caliper body and a main scale arranged on the vernier caliper body, wherein a first measuring claw and a second measuring claw which can slide are arranged on the vernier caliper body, the vernier caliper body is provided with a vernier scale in sliding connection and a secondary scale on the vernier scale, and the second measuring claw is arranged on the vernier scale; the first measuring claw is provided with a first measuring head, the second measuring claw is provided with a second measuring head, the first measuring head is provided with a first measuring surface and a second measuring surface which are arranged oppositely, and the second measuring head is provided with a third measuring surface and a fourth measuring surface; when the first measuring surface and the fourth measuring surface are used for matching and positioning the inner elliptical conical surface of the valve seat, the vernier scale and the vernier caliper body are matched to measure the nominal inner diameter of the inner elliptical conical surface of the valve seat; when the second measuring surface and the third measuring surface are used for matching and positioning the outer elliptic conical surface of the sealing ring, the vernier scale and the vernier caliper body are matched to measure the nominal outer diameter of the outer elliptic conical surface of the sealing ring.
Preferably, the sealing ring is provided with a first sealing surface and a second sealing surface when being matched with the valve seat, the sealing ring is provided with a first plane eccentrically arranged relative to the central plane and having a first included angle, the second included angle between the first sealing surface and the first plane, the third included angle between the second sealing surface and the first plane are the same, a fourth included angle is arranged between the first sealing surface and the central plane, and the fourth included angle is smaller than the second included angle, and the second included angle is smaller than the first included angle; when the first measuring surface is attached to the first sealing surface on the valve seat, the fourth measuring surface is attached to the second sealing surface on the valve seat; when the second measuring surface is attached to the second sealing surface on the sealing ring, the third measuring surface is attached to the first sealing surface on the sealing ring.
Preferably, the first included angle is 11 degrees, the second included angle and the third included angle are both 10 degrees, and the fourth included angle is 1 degree.
Preferably, the maximum measuring scale of the main scale is 60cm.
Preferably, a first notch positioned at one side of the first measuring surface is arranged at the joint of the first measuring head and the first measuring claw; the joint of the second measuring head and the second measuring claw is provided with a second notch positioned at one side of the fourth measuring surface.
Preferably, a first positioning step located at one side of the second measuring surface is arranged at the joint of the first measuring head and the first measuring claw, and a second positioning step located at one side of the third measuring surface is arranged at the joint of the second measuring head and the second measuring claw.
Preferably, the vernier comprises a lower pressing plate and an upper pressing plate, wherein the upper pressing plate is arranged at two sides of the lower pressing plate at intervals and is locked by a first screw, the upper pressing plate and the lower pressing plate are enclosed to form a chute, and the chute is in sliding fit with the vernier body; the second measuring claw is connected to the lower pressing plate; the vernier caliper is characterized in that a micro-motion frame is slidably arranged on the vernier caliper body and connected with the lower pressing plate through a fine-adjustment screw, and a sliding gear for driving the fine-adjustment screw is rotatably arranged on the micro-motion frame.
Preferably, a first fastening screw penetrating into the sliding groove is arranged on the lower pressing plate, and a second fastening screw is arranged on the micro-motion frame.
Preferably, a first spring gasket is arranged in the chute, and a fine adjustment screw is arranged on the lower pressing plate.
Preferably, a second spring pad is arranged between the micro-motion frame and the vernier caliper body, and a fine-tuning screw is arranged on the micro-motion frame.
(III) beneficial effects
Under the condition that the distance between the first measuring claw and the second measuring claw is read based on the cooperation of the vernier caliper body and the vernier caliper body, the first measuring head is further arranged on the first measuring claw, the second measuring head is arranged on the second measuring claw, the corresponding nominal inner diameter can be measured after the first measuring surface on the first measuring head and the fourth measuring surface on the second measuring head are positioned to face the inner elliptic conical surface of the valve seat, and whether the inner conical surface of the valve seat is machined in place can be rapidly judged after the nominal inner diameter is obtained based on the eccentric angle relation between the nominal inner diameter and the inner elliptic conical surface; similarly, the corresponding nominal outer diameter can be measured after the second measuring surface on the first measuring head and the third measuring surface on the second measuring head are positioned to face the outer elliptic conical surface on the sealing ring, and whether the size of the valve seat and the processed size of the sealing ring meet the matching requirement can be obtained after the size parameters of the nominal inner diameter and the nominal outer diameter are detected;
and can realize measuring the conical surface of disk seat and sealing ring through single measuring tool, and can measure fast according to the serial dimension of different nominal diameters, and can measure to disk seat and sealing ring of special structure through special slide caliper rule, improve measurement efficiency.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;
FIG. 3 is a schematic structural view showing the fit state of the seal ring and the valve seat;
FIG. 4 is a schematic diagram of the structure of a special caliper measuring a valve seat;
FIG. 5 is a schematic diagram of the structure of a special caliper measuring the seal ring;
in fig. 1 to 5, the correspondence between the component names or lines and the drawing numbers is:
the sealing ring 100, the valve seat 200, the first sealing surface 300, the second sealing surface 400, the first included angle alpha, the second included angle beta, the third included angle gamma, the fourth included angle theta, the vernier caliper body 1, the main scale 2, the first measuring jaw 3, the second measuring jaw 4, the vernier scale 5, the auxiliary scale 6, the first measuring head 7, the first measuring surface 71, the second measuring surface 72, the first notch 73, the first positioning step 74, the second measuring head 8, the third measuring surface 81, the fourth measuring surface 82, the second notch 83, the second positioning step 84, the lower pressure plate 9, the upper pressure plate 10, the first screw 11, the micro-motion frame 12, the micro-adjustment screw 13, the sliding gear 14, the first fastening screw 15, the second fastening screw 16, the first spring washer 17, the second spring washer 18, and the micro-adjustment screw 19.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-5, in the embodiment of the utility model, a special caliper suitable for measuring an elliptical conical surface is provided, because the valve seat and the sealing ring with the triple eccentric structure are matched with the sealing surface to form the elliptical conical surface, the conventional measurement mode cannot be adopted to quickly measure the size of the elliptical conical surface, when the elliptical conical surface is considered in design, the eccentric angles based on different positions of the conical surface are required to be kept attached to the contact surface as measurement references, and then the nominal diameter of the elliptical conical surface is obtained, so that whether the requirements of design parameters are met can be judged by taking the nominal diameter as elliptical conical surface measurement data.
And the nominal diameter of the elliptical conical surface can be obtained rapidly, so that corresponding measurement can be carried out on the valve seats and sealing rings with different sizes and the same three eccentric angles.
Therefore, in order to adapt to the valve seat with a special three-eccentric angle and the sealing ring to measure by adopting the same special caliper, the special caliper comprises a vernier caliper body and a main scale arranged on the vernier caliper body, a first measuring claw and a second measuring claw which can slide are arranged on the vernier caliper body, a vernier scale which is in sliding connection and an auxiliary scale on the vernier scale are arranged on the vernier caliper body, and the second measuring claw is arranged on the vernier scale; under normal conditions, after the two sides of the space dimension measurement is carried out by the vernier with the second measuring claw, the current measurement dimension can be obtained through the corresponding reading of the auxiliary scale on the vernier and the main scale on the vernier body after the two measuring surfaces are positioned by the first measuring claw and the second measuring claw, the specific reading mode is the same as the existing vernier reading mode, and further, in order to adapt to the space dimension measurement after the surface fitting positioning of the inner conical surface and the outer conical surface of the special triple eccentricity, the first measuring claw is provided with a first measuring head, the second measuring claw is provided with a second measuring head, the first measuring head is provided with a first measuring surface and a second measuring surface which are arranged oppositely, and the second measuring head is provided with a third measuring surface and a fourth measuring surface; and when the second measuring surface and the third measuring surface are used for matching and positioning the outer elliptic conical surface of the sealing ring, the vernier is matched with the vernier caliper body to measure the nominal outer diameter of the outer elliptic conical surface of the sealing ring.
Therefore, after the first measuring head and the second measuring head are additionally arranged, the first measuring surface on the first measuring head and the fourth measuring surface on the second measuring head are used for realizing the fitting and positioning of the inner elliptical conical surface on the valve seat and then realizing the nominal inner diameter measurement of the inner elliptical conical surface, and likewise, the second measuring surface on the first measuring head and the third measuring surface on the second measuring head are used for realizing the fitting and positioning of the outer elliptical conical surface on the sealing ring and then realizing the nominal outer diameter measurement of the outer elliptical conical surface, the nominal inner diameter of the valve seat is mainly measured during specific measurement, and the nominal outer diameter of the sealing ring is measured, so that the measuring parameters can be quickly obtained, the machining size is quickly measured, and the measuring efficiency is improved.
The first measuring surface, the second measuring surface, the third measuring surface and the fourth measuring surface are mainly used for fitting the sealing matching surface between the sealing ring and the valve seat and the sealing matching surface between the sealing ring and the valve seat when being fitted to the outer elliptic conical surface of the sealing ring and the inner elliptic conical surface of the valve seat, the sealing ring is provided with a first sealing surface and a second sealing surface when being fitted to the valve seat, the sealing ring is provided with a first plane eccentrically arranged relative to the central plane and having a first included angle, the second included angle between the first sealing surface and the first plane and the third included angle between the second sealing surface and the first plane are the same, the fourth included angle between the first sealing surface and the central plane is smaller than the second included angle, and the second included angle is smaller than the first included angle, so that the first sealing surface is in a certain circumferential angle range through specific eccentric angle design, the second sealing surface is positioned in the remaining circumferential angle range by laminating and positioning the first sealing surface and the second sealing surface during measurement, the first included angle is 11 degrees, the second included angle and the third included angle are both 10 degrees, the fourth included angle is 1 degree, so that the eccentric arrangement meeting the included angle can enable the first sealing surface and the second sealing surface between the sealing ring and the valve seat to have good sealing effect, therefore, particularly during measurement, laminating and positioning are actually performed on the first sealing surface and the second sealing surface, particularly, when the first measuring surface is laminated with the first sealing surface on the valve seat, the fourth measuring surface is laminated with the second sealing surface on the valve seat, and when the second measuring surface is laminated with the second sealing surface on the sealing ring, the third measuring surface is laminated with the first sealing surface on the sealing ring, and to the eccentric angle design that exists between first measuring surface and the fourth measuring surface and will first sealed face, the relative angle setting between the second sealing surface is direct to be presented, and second measuring surface, third measuring surface then form and rotate 180 degrees back to first sealed face, the relative angle setting of second sealing surface is direct to be presented, thereby can rely on first measuring surface and fourth measuring surface to laminate the location on the interior elliptic conical surface of disk seat, and second measuring surface and third measuring surface then laminate the location on the outer elliptic conical surface of sealing ring, can be directly through reading the main scale, the nominal diameter that the size on the vice scale obtained the measurement, accomplish quick location measurement.
To accommodate large-scale measurements, the maximum measurement scale of the main scale is made 60cm.
Meanwhile, a first gap positioned on one side of the first measuring surface is formed in the joint of the first measuring head and the first measuring claw, a second gap positioned on one side of the fourth measuring surface is formed in the joint of the second measuring head and the second measuring claw, and therefore the first measuring surface and the fourth measuring surface can be guaranteed to be bonded and positioned by avoiding the influence of an included angle position.
Meanwhile, a first positioning step positioned on one side of the second measuring surface is arranged at the joint of the first measuring head and the first measuring claw, a second positioning step positioned on one side of the third measuring surface is arranged at the joint of the second measuring head and the second measuring claw, and the surface attaching and positioning of the second measuring surface and the third measuring surface can be ensured through the functions of the first positioning step and the second positioning step.
Specifically, the vernier scale includes holding down plate and top board, the top board interval sets up the holding down plate both sides and locks through first screw, the top board with the holding down plate encloses and forms the spout, the spout with vernier caliper body sliding fit, the second is measured the claw and is connected on the holding down plate, the vernier scale slides and takes the second to measure the claw and remove through the effect of spout on the vernier caliper body to compress tightly the location to the second in the location measurement process, simultaneously sliding mounting has the fine motion frame on the vernier caliper body, the fine motion frame with the holding down plate passes through the fine setting screw and is connected, rotate on the fine motion frame and install and be used for the drive the sliding gear of fine setting screw, adjust the fine setting through the fine setting screw to the vernier scale for the distance between the fine motion frame and realize, improve the reading accuracy.
Meanwhile, in order to ensure that the relative position of the reading is locked after positioning, a first fastening screw penetrating into the sliding groove is arranged on the lower pressing plate, and a second fastening screw is arranged on the micro-motion frame.
The vernier scale can be quickly slid by arranging a first spring gasket in the sliding groove, and a fine adjustment screw is arranged on the lower pressing plate, meanwhile, a second spring gasket is arranged between the fine adjustment frame and the vernier caliper body, the fine adjustment screw is arranged on the fine adjustment frame, the elastic acting force of the first spring gasket and the second spring gasket can be adjusted by adjusting the fine adjustment screw, so that the flexibility of relative sliding is adjusted, and the vernier scale and the fine adjustment frame can be quickly slid under the action of the first spring gasket and the second spring gasket after loosening the first fastening screw and the second fastening screw.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The special caliper comprises a vernier caliper body and a main scale arranged on the vernier caliper body, wherein a first measuring claw and a second measuring claw which can slide are arranged on the vernier caliper body, the vernier caliper body is provided with a vernier scale in sliding connection and a secondary scale on the vernier scale, and the second measuring claw is arranged on the vernier scale; the method is characterized in that: the first measuring claw is provided with a first measuring head, the second measuring claw is provided with a second measuring head, the first measuring head is provided with a first measuring surface and a second measuring surface which are arranged oppositely, and the second measuring head is provided with a third measuring surface and a fourth measuring surface;
when the first measuring surface and the fourth measuring surface are used for matching and positioning the inner elliptical conical surface of the valve seat, the vernier scale and the vernier caliper body are matched to measure the nominal inner diameter of the inner elliptical conical surface of the valve seat;
when the second measuring surface and the third measuring surface are used for matching and positioning the outer elliptical conical surface of the sealing ring, the vernier scale and the vernier caliper body are matched to measure the nominal outer diameter of the outer elliptical conical surface of the sealing ring;
the sealing ring is provided with a first sealing surface and a second sealing surface when being matched with the valve seat, the sealing ring is provided with a first plane eccentrically arranged relative to the central plane and having a first included angle, a second included angle between the first sealing surface and the first plane, and a third included angle between the second sealing surface and the first plane are the same, a fourth included angle is arranged between the first sealing surface and the central plane, and the fourth included angle is smaller than the second included angle, and the second included angle is smaller than the first included angle;
when the first measuring surface is attached to the first sealing surface on the valve seat, the fourth measuring surface is attached to the second sealing surface on the valve seat;
when the second measuring surface is attached to the second sealing surface on the sealing ring, the third measuring surface is attached to the first sealing surface on the sealing ring.
2. A special calliper for elliptical cone measurement according to claim 1, wherein: the first included angle is 11 degrees, the second included angle and the third included angle are all 10 degrees, and the fourth included angle is 1 degree.
3. A special calliper for elliptical cone measurement according to any of claims 1-2, wherein: the maximum measurement scale of the main scale is 60cm.
4. A special calliper for elliptical cone measurement according to claim 1, wherein: a first notch positioned at one side of the first measuring surface is arranged at the joint of the first measuring head and the first measuring claw;
the joint of the second measuring head and the second measuring claw is provided with a second notch positioned at one side of the fourth measuring surface.
5. A special calliper for elliptical cone measurement according to claim 1, wherein: the first measuring head is provided with a first positioning step positioned on one side of the second measuring surface at the joint of the first measuring head and the first measuring claw, and a second positioning step positioned on one side of the third measuring surface at the joint of the second measuring head and the second measuring claw.
6. A special calliper for elliptical cone measurement according to claim 1, wherein: the vernier comprises a lower pressing plate and an upper pressing plate, wherein the upper pressing plates are arranged at two sides of the lower pressing plate at intervals and are locked by first screws, the upper pressing plate and the lower pressing plate are enclosed to form a chute, and the chute is in sliding fit with the vernier body;
the second measuring claw is connected to the lower pressing plate;
the vernier caliper is characterized in that a micro-motion frame is slidably arranged on the vernier caliper body and connected with the lower pressing plate through a fine-adjustment screw, and a sliding gear for driving the fine-adjustment screw is rotatably arranged on the micro-motion frame.
7. The special caliper for elliptical cone measurement according to claim 6, wherein: the lower pressing plate is provided with a first fastening screw penetrating into the sliding groove, and the micro-motion frame is provided with a second fastening screw.
8. The special caliper for elliptical cone measurement according to claim 7, wherein: the sliding chute is internally provided with a first spring gasket, and the lower pressing plate is provided with a fine adjustment screw.
9. The special caliper for elliptical cone measurement according to claim 8, wherein: and a second spring pad is arranged between the micro-motion frame and the vernier caliper body, and a fine-tuning screw is arranged on the micro-motion frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321159548.1U CN219914221U (en) | 2023-05-15 | 2023-05-15 | Special caliper suitable for oval conical surface measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321159548.1U CN219914221U (en) | 2023-05-15 | 2023-05-15 | Special caliper suitable for oval conical surface measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219914221U true CN219914221U (en) | 2023-10-27 |
Family
ID=88427663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321159548.1U Active CN219914221U (en) | 2023-05-15 | 2023-05-15 | Special caliper suitable for oval conical surface measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219914221U (en) |
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2023
- 2023-05-15 CN CN202321159548.1U patent/CN219914221U/en active Active
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