CN104833304B - Pressure vessel ellipsoidal head testing instruments based on ellipsograph - Google Patents
Pressure vessel ellipsoidal head testing instruments based on ellipsograph Download PDFInfo
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- CN104833304B CN104833304B CN201510169933.8A CN201510169933A CN104833304B CN 104833304 B CN104833304 B CN 104833304B CN 201510169933 A CN201510169933 A CN 201510169933A CN 104833304 B CN104833304 B CN 104833304B
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- ellipsograph
- slide
- pressure vessel
- ellipsoidal head
- displacement sensor
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Abstract
The present invention relates to a kind of pressure vessel ellipsoidal head testing instruments based on ellipsograph, belong to Inspection of Pressure Vessel apparatus field.It mainly includes the ellipsograph slide with sliding slot, and in the fixing card and fastening bolt that are provided at both ends with mating installation of ellipsograph slide, slide bar is equipped with by center vertical slipper and eccentric horizontal slider on ellipsograph slide；The eccentric end of the slide bar is the push rod with high accuracy displacement sensor, and the end of push rod is provided with high accuracy displacement sensor idler wheel；The high accuracy displacement sensor is connected by data cable with handheld terminal.The beneficial effects of the invention are as follows：It realizes the raising of ellipsoidal head testing accuracy and checkability, the quality of pressure vessel ellipsoidal head is also effectively ensured, eliminate the making of model and safeguard link；Meanwhile also improve the situation for lacking Automated inspection equipment always that ellipsoidal head examines industry.
Description
Technical field
It can be applied to examine whether the ovality of pressure vessel ellipsoidal head inner surface meets the present invention relates to a kind of
The testing instruments of test stone more particularly to a kind of pressure vessel ellipsoidal head testing instruments based on ellipsograph, belong to
Inspection of Pressure Vessel apparatus field.
Background technology
At present, newest GB/T 25198-2010《Pressure vessel head》In on ellipsoidal head " manufacture, examine it is pre-
Check and accept " link, judge whether the inner surface of ellipsoidal head complies with standard ellipse using the method that model compares always
Curvature.It is provided in standard：Whole plate shapes and the convex head of first jigsaw postforming, and end socket standard section shape line is pressed after shaping
Certain size (depending on end socket size, being advisable not influence measurement form tolerance) is inwardly indented as gap gage profile line.
It should make model during inspection perpendicular to surface to be measured.Maximal clearance between model and end socket inner surface：Evagination is not greater than 1.25%
Di, indent are not greater than 0.625%Di.
Although model compares easy to use, tolerance access not only heavy workload, very numerous for reviewer
It is trivial, and manually acquisition is susceptible to mistake；Simultaneously it is also contemplated that the ellipsoidal head of different size is required for being equipped with a set of
Model with specification, this adds entreprise cost for the preservation of model with maintenance；In addition as model usage time is continuous
The problem of ellipsoidal head model abrasion for extending and generating.As long as problem above has the carelessness of a bit, ellipse may result in
The dangerous of end socket uses or even can cause immeasurable loss to the pressure vessel user of shaping.
Utility model content
For the present invention for existing ellipsoidal head in security risk existing for manufacturing inspection link, providing one kind can basis
The specification adjustment instrument size of ellipsoidal head to be tested, the pressure vessel ellipsoidal head check meter based on ellipsograph
Device.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of pressure vessel ellipsoidal head testing instruments based on ellipsograph, the ellipsograph slide including carrying sliding slot,
It is vertical by center on ellipsograph slide in the fixing card and fastening bolt that are provided at both ends with mating installation of ellipsograph slide
Sliding block and eccentric horizontal slider are equipped with slide bar；The fixing card is carried by one internal, external two adjustment idler wheels formed,
The clamp nut of the fastening bolt is wing nut；The eccentric end of the slide bar is pushing away with high accuracy displacement sensor
Bar is provided with high accuracy displacement sensor idler wheel in the end of push rod；The high accuracy displacement sensor by data cable with
Handheld terminal is connected.
Compared with prior art, the beneficial effects of the invention are as follows：Realize ellipsoidal head testing accuracy and checkability
It is common to improve, the inspection quality of pressure vessel ellipsoidal head has also been effectively ensured, has eliminated the making and maintenance for comparing model
Link.Meanwhile also improve the situation for lacking Automated inspection equipment always that ellipsoidal head examines industry；Fixing card is whole
Idler wheel can be relied on to be slided in the straight flange region of end socket along the circumferential direction of end socket, the personnel that are conveniently operated replace the oval rail of angle detection
Mark and the measurement for completing the ellipsoidal head line of apsides；The execute-in-place of the more convenient operating personnel of wing nut.
Based on the above technical solutions, the present invention can also be improved as follows.
Further, the sliding slot is internal chute structure, and the horizontal slider designs for eccentric shoe.
Advantageous effect using above-mentioned further scheme is：It can ensure that ellipsograph can skid off complete half oval rail
Mark.
Further, the ellipsograph slide is equipped with scale.
Advantageous effect using above-mentioned further scheme is：Can convenient reading, and can be according to ellipsoidal head
Product parameters adjustment slide length.
Further, connected between the center vertical slipper and eccentric horizontal slider and slide bar by coupling bar.
Advantageous effect using above-mentioned further scheme is：Coupling bar is easy-to-dismount mechanical structure, can be easy to use
The line of apsides of the dismounting adjustment ellipsograph of personnel.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the usage state diagram of the present invention；
Fig. 3 is the structure diagram of the fixing card of the present invention.
In the figure 1, ellipsograph slide；2nd, sliding slot；3rd, fixing card；4th, fastening bolt；5th, slide bar；6th, center vertical slipper；
7th, eccentric horizontal slider；8th, high accuracy displacement sensor；9th, high accuracy displacement sensor idler wheel；10th, push rod；11st, data cable；
12nd, handheld terminal；13rd, idler wheel is adjusted；14th, end socket to be measured.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
In Fig. 1, ellipsograph slide 1 uses easy-to-dismount portable mechanical structure, and equipped with scale, can easily read
Number, and the length of the product parameters adjustment ellipsograph slide 1 according to end socket 14 to be measured.Sliding slot 2 is set using the structure of internal chute
Meter, is to ensure that ellipsograph can skid off complete half of elliptical orbit.It is mating in fixing card 3 that fastening bolt 4 is installed, and
The preferred wing nut of clamp nut is to be conveniently operated the execute-in-place of personnel；By the length adjustment of ellipsograph slide 1 to it is to be measured
The long diameter of end socket 14 is consistent, then with fixing card 3 ellipsograph slide 1 is made to keep relatively-stationary state；Fixing card 3 can be according to
It is circumferentially slided along it in the straight flange region of end socket 14 to be measured by adjustment idler wheel 13, the personnel that are conveniently operated replace the oval rail of angle detection
Mark.It is attached between center vertical slipper 6 and eccentric horizontal slider 7 and slide bar 5 using coupling bar, coupling bar is using easy to assemble
Mechanical structure, be capable of personnel easy to use dismounting adjustment ellipsograph the line of apsides；The bias that eccentric horizontal slider 7 uses is set
Meter is to ensure the integrality of elliptical orbit.High accuracy displacement sensor 8 is with treating by high accuracy displacement sensor idler wheel 9
The inner surface for surveying end socket 14 contacts and detects data.High accuracy displacement sensor idler wheel 9 once runs into bumps, and connection pushes away
Bar 10 will correspondingly extend either to shorten to be become so as to cause the current potential of resistance-type or condenser type high accuracy displacement sensor 8
Change, after current potential is converted into digital signal, just as data the defects of the deviation elliptical orbit of acquisition.Defective data passes through data electricity
Cable 11 is inputted to handheld terminal 12, and the form for passing through oscillogram is shown on the display screen of handheld terminal 12.Once it has more than
The data of standard deviation occur, and handheld terminal 12 will record defect level automatically, while artificially record defective locations.It completes
After one elliptical orbit detection, the fastening bolt 4 of fixing card 3 is unclamped, by the circumferentially rotating along end socket 14 to be measured of ellipsograph slide 1
Certain angle after fixing fastening bolt 4 again, re-starts the detection of elliptical orbit.Same end socket to be measured 14, oval rail
The number of mark detection is more, and the whole detection quality of end socket 14 to be measured is higher.This detection odds ratio is merely according to standard gauge
Fixed inspection quality will be much higher with checkability.
During normal work, according to the parameter declaration of end socket 14 to be measured, the length of ellipsograph slide 1 is adjusted, and to be measured
It is fixed on end socket 14 with mating fixing card 3；According to the good slide bar 5 of line of apsides parameter adjustment and center vertical slipper 6 and bias
The tie point of horizontal slider 7；Data cable 11 is connected to handheld terminal 12；Center vertical slipper 6 is returned to zero to ellipsograph and is slided
The bottom of rail 1, the oscillogram of handheld terminal 12 are adjusted to zero point；The eccentric horizontal slider 7 of control is slowly evenly slided from ellipsograph
One end of rail 1 slides to the other end, while slip, the oscillogram variation of observation handheld terminal 12, when oscillogram off-axis
When degree reaches defect level, the position of record high accuracy displacement sensor idler wheel 9 and the offset of oscillogram.Complete one
After the detection of a elliptical orbit, the clamp nut of fixing card 3 is unclamped, circumferentially rotates certain angle (standard is defined as 90 °), then
It is secondary to be detected step, obtain one group of new fault detection data.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of pressure vessel ellipsoidal head testing instruments based on ellipsograph, it is characterised in that：Including carrying sliding slot (2)
Ellipsograph slide (1), in the fixing card (3) for being provided at both ends with mating installation and fastening bolt (4) of ellipsograph slide (1),
Slide bar (5) is equipped with by center vertical slipper (6) and eccentric horizontal slider (7) on ellipsograph slide (1)；The fixing card
(3) carry by one internal, external two adjustment idler wheels (13) formed, the clamp nut of the fastening bolt (4) is butterfly
Nut；The eccentric end of the slide bar (5) is the push rod (10) with high accuracy displacement sensor (8), in the end of push rod (10)
It is provided with high accuracy displacement sensor idler wheel (9)；The high accuracy displacement sensor (8) is by data cable (11) with holding eventually
(12) is held to be connected, the high accuracy displacement sensor (8) passes through defective data in a manner that current potential is converted into digital signal
Data cable (11) is inputted to handheld terminal (12), and the defective data is shown in handheld terminal (12) by the form of oscillogram
Display screen on.
2. the pressure vessel ellipsoidal head testing instruments according to claim 1 based on ellipsograph, it is characterised in that：Institute
Sliding slot (2) is stated as internal chute structure design.
3. the pressure vessel ellipsoidal head testing instruments according to claim 1 or 2 based on ellipsograph, feature exist
In：The ellipsograph slide (1) is equipped with scale.
4. the pressure vessel ellipsoidal head testing instruments according to claim 3 based on ellipsograph, it is characterised in that：Institute
It states and is connected between center vertical slipper (6) and eccentric horizontal slider (7) and slide bar (5) by coupling bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169933.8A CN104833304B (en) | 2015-04-10 | 2015-04-10 | Pressure vessel ellipsoidal head testing instruments based on ellipsograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169933.8A CN104833304B (en) | 2015-04-10 | 2015-04-10 | Pressure vessel ellipsoidal head testing instruments based on ellipsograph |
Publications (2)
| Publication Number | Publication Date |
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| CN104833304A CN104833304A (en) | 2015-08-12 |
| CN104833304B true CN104833304B (en) | 2018-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510169933.8A Active CN104833304B (en) | 2015-04-10 | 2015-04-10 | Pressure vessel ellipsoidal head testing instruments based on ellipsograph |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364557B (en) * | 2018-02-10 | 2020-02-07 | 西安西元电子科技集团有限公司 | Real device of instructing of ceramic tile wainscot engineering |
| CN108507448A (en) * | 2018-03-21 | 2018-09-07 | 合肥通用机械研究院有限公司 | A kind of end socket form variations measuring device and preparation method thereof, application method |
| CN112945063B (en) * | 2021-03-12 | 2022-06-28 | 山西阳煤化工机械（集团）有限公司 | Method for measuring shape deviation of spherical end socket |
| CN112945062B (en) * | 2021-03-12 | 2022-07-19 | 山西阳煤化工机械（集团）有限公司 | Method for measuring shape deviation of ellipsoidal head |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032147U (en) * | 1988-07-07 | 1989-02-08 | 王世武 | Simple ellipse compasses |
| CN2586591Y (en) * | 2002-10-22 | 2003-11-19 | 刘浩 | Ellipsograph with curved lever and chute |
| CN202547630U (en) * | 2012-04-01 | 2012-11-21 | 杭州市特种设备检测院 | Device for measuring shape error of pressure vessel head |
| CN203190929U (en) * | 2013-03-16 | 2013-09-11 | 山东省特种设备检验研究院烟台分院 | Device for measuring deviation of surface shape of elliptical head |
| CN104374293A (en) * | 2014-12-08 | 2015-02-25 | 沈阳汇博热能设备有限公司 | Seal shape deviation measuring instrument for pressure vessels |
| CN204630542U (en) * | 2015-04-10 | 2015-09-09 | 烟台市特种设备检验研究院 | Based on the pressure vessel ellipsoidal head testing instruments of ellipsograph |
-
2015
- 2015-04-10 CN CN201510169933.8A patent/CN104833304B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032147U (en) * | 1988-07-07 | 1989-02-08 | 王世武 | Simple ellipse compasses |
| CN2586591Y (en) * | 2002-10-22 | 2003-11-19 | 刘浩 | Ellipsograph with curved lever and chute |
| CN202547630U (en) * | 2012-04-01 | 2012-11-21 | 杭州市特种设备检测院 | Device for measuring shape error of pressure vessel head |
| CN203190929U (en) * | 2013-03-16 | 2013-09-11 | 山东省特种设备检验研究院烟台分院 | Device for measuring deviation of surface shape of elliptical head |
| CN104374293A (en) * | 2014-12-08 | 2015-02-25 | 沈阳汇博热能设备有限公司 | Seal shape deviation measuring instrument for pressure vessels |
| CN204630542U (en) * | 2015-04-10 | 2015-09-09 | 烟台市特种设备检验研究院 | Based on the pressure vessel ellipsoidal head testing instruments of ellipsograph |
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| CN104833304A (en) | 2015-08-12 |
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Inventor after: Sun Xiaojing Inventor after: Zhao Xicheng Inventor after: Feng Mingguang Inventor after: Li Peie Inventor before: Li Peizhong Inventor before: Zhang Bin Inventor before: Sun Xiaojing Inventor before: Zhao Xicheng Inventor before: Feng Mingguang Inventor before: Gong Yonggui Inventor before: Yu Congjuan Inventor before: Li Peie |
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