CN104833304A - Inspection instrument for pressure vessel ellipsoidal head based on ellipsograph - Google Patents
Inspection instrument for pressure vessel ellipsoidal head based on ellipsograph Download PDFInfo
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- CN104833304A CN104833304A CN201510169933.8A CN201510169933A CN104833304A CN 104833304 A CN104833304 A CN 104833304A CN 201510169933 A CN201510169933 A CN 201510169933A CN 104833304 A CN104833304 A CN 104833304A
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- ellipsograph
- pressure vessel
- ellipsoidal head
- slide rail
- displacement sensor
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Abstract
The invention relates to an inspection instrument for a pressure vessel ellipsoidal head based on an ellipsograph, and belongs to the field of pressure vessel inspection equipment. The instrument mainly comprises an ellipsograph slide rail with a sliding groove. Two ends of the ellipsograph slide rail are provided with fixing clips and fastening bolts installed in a matched manner. The ellipsograph slide rail is provided with a slide bar through a center vertical sliding block and an eccentric horizontal slide block. The eccentric end of the slide bar is a push rod with a high-precision displacement sensor. The tail end of the push rod is provided with a high-precision displacement sensor roller. The high-precision displacement sensor is connected with a handheld terminal through a data cable. Beneficial effects of the instrument are that ellipsoidal head inspection precision and inspection efficiency are improved, quality of the pressure vessel ellipsoidal head is effectively ensured, manufacturing and maintenance steps of a sample plate are not needed, and situation of being lack of automation inspection equipment all the time in an ellipsoidal head inspection industry is improved.
Description
Technical field
The present invention relates to the testing instruments whether a kind of ovality that can be applied to inspection pressure container ellipsoidal head inside surface meets test stone, particularly relate to a kind of pressure vessel ellipsoidal head testing instruments based on ellipsograph, it belongs to Inspection of Pressure Vessel apparatus field.
Background technology
At present, " manufacture, check and check and accept in advance " link about ellipsoidal head in up-to-date GB/T 25198-2010 " pressure vessel head ", what adopt is that the method for model comparison is to judge whether the inside surface of ellipsoidal head meets the curvature of standard ellipse always.Specify in standard: whole plate is shaped and the convex head of first jigsaw postforming, after being shaped by indentation certain size in end socket standard section shape alignment (depending on end socket size, being advisable not affect measurement form tolerance) as gap gage profile line.Model should be made during inspection perpendicular to surface to be measured.Maximal clearance between model and end socket inside surface: evagination must not be greater than 1.25%Di, indent must not be greater than 0.625%Di.
Although model comparison is simple and easy to use, tolerance peek for reviewer not only workload greatly, very loaded down with trivial details, and easily there is mistake in artificial collection; Also will consider that the ellipsoidal head of different size all needs to be equipped with the model of a set of coupling specification, this preservation for model and maintenance add enterprise cost simultaneously; The problem of the ellipsoidal head model wearing and tearing produced along with model constantly extends service time in addition.As long as above problem has the carelessness of a bit, the danger of ellipsoidal head will be caused to use, even can cause immeasurable loss to the pressure vessel user be shaped.
Summary of the invention
The present invention is directed to the potential safety hazard that existing ellipsoidal head exists in manufacturing inspection link, provide a kind of can according to the specification of ellipsoidal head to be tested adjustment instrument size, based on the pressure vessel ellipsoidal head testing instruments of ellipsograph.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of pressure vessel ellipsoidal head testing instruments based on ellipsograph, comprise the ellipsograph slide rail with chute, be provided with fixing card and the fastening bolt of supporting installation at the two ends of ellipsograph slide rail, ellipsograph slide rail is provided with slide bar by central vertical slide block and eccentric cross sliding clock; The eccentric end of described slide bar is the push rod with high accuracy displacement sensor, and the end of push rod is provided with high accuracy displacement sensor roller; Described high accuracy displacement sensor is connected with handheld terminal by data cable.
Compared with prior art, the invention has the beneficial effects as follows: the common raising realizing ellipsoidal head testing accuracy and checkability, also effectively ensure that the quality inspection of pressure vessel ellipsoidal head, eliminate the making of comparison model and safeguard link.Meanwhile, the situation always lacking Automated inspection equipment of ellipsoidal head inspection industry is also improved.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described chute is internal chute structure, and described cross sliding clock designs for eccentric shoe.
The beneficial effect of above-mentioned further scheme is adopted to be: can ensure that ellipsograph can skid off half complete elliptical orbit.
Further, described fixing cassette tape has by inner one, outside two adjustment rollers formed, and the clamp nut of described fastening bolt is wing nut.
Adopt the beneficial effect of above-mentioned further scheme to be: fixing card is overall can rely on the circumference of roller in the straight flange region of end socket along end socket to slide, handled easily personnel change angle detection elliptical orbit, and complete the measurement of the ellipsoidal head line of apsides; The execute-in-place of the convenient operating personnel of wing nut.
Further, described ellipsograph slide rail is provided with scale.
The beneficial effect of above-mentioned further scheme is adopted to be: can reading easily, and can according to the length of the product parameters adjustment slide rail of ellipsoidal head.
Further, described central vertical slide block and eccentric cross sliding clock are connected by coupling bar with between slide bar.
The beneficial effect of above-mentioned further scheme is adopted to be: coupling bar is easy-to-dismount physical construction, can the line of apsides of dismounting adjustment ellipsograph of personnel easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is using state figure of the present invention;
Fig. 3 is the structural representation of fixing card of the present invention.
In the drawings, 1, ellipsograph slide rail; 2, chute; 3, fixing card; 4, fastening bolt; 5, slide bar; 6, central vertical slide block; 7, eccentric cross sliding clock; 8, high accuracy displacement sensor; 9, high accuracy displacement sensor roller; 10, push rod; 11, data cable; 12, handheld terminal; 13, roller is adjusted; 14, end socket to be measured.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
In FIG, ellipsograph slide rail 1 adopts easy-to-dismount portable physical construction, and is provided with scale, can reading easily, and the length of product parameters adjustment ellipsograph slide rail 1 according to end socket 14 to be measured.Chute 2 adopts the structural design of internal chute, is to ensure that ellipsograph can skid off half complete elliptical orbit.Supporting on fixing card 3 fastening bolt 4 is installed, and the preferred wing nut of clamp nut is with the execute-in-place of handled easily personnel; By the length adjustment of ellipsograph slide rail 1 to consistent with the long diameter of end socket 14 to be measured, then ellipsograph slide rail 1 is made to keep relatively-stationary state with fixing card 3; Fixing card 3 can rely on adjustment roller 13 to slide along its circumference in the straight flange region of end socket 14 to be measured, and handled easily personnel change angle and detect elliptical orbit.Central vertical slide block 6 and adopt coupling bar to be connected between eccentric cross sliding clock 7 with slide bar 5, coupling bar adopts easy-to-dismount physical construction, can the line of apsides of dismounting adjustment ellipsograph of personnel easy to use; The bias design that eccentric cross sliding clock 7 adopts is the integrality in order to ensure elliptical orbit.High accuracy displacement sensor 8 relies on high accuracy displacement sensor roller 9 contact with the inside surface of end socket 14 to be measured and detect data.High accuracy displacement sensor roller 9 is once run into concavo-convex, its push rod 10 connected will correspondingly extend or shorten, thus cause the potential change of resistance-type or condenser type high accuracy displacement sensor 8, after current potential converts digital signal to, just become the defective data departing from elliptical orbit of collection.Defective data inputs to handheld terminal 12 by data cable 11, and is presented at by the form of oscillogram on the display screen of handheld terminal 12.Once there be the data of the deviation that is above standard to occur, handheld terminal 12 will recording defect degree automatically, simultaneously artificial recording defect position.After completing an elliptical orbit detection, unclamp the fastening bolt 4 of fixing card 3, the circumference of ellipsograph slide rail 1 along end socket 14 to be measured is turned an angle, after again fixing fastening bolt 4, re-starts the detection of elliptical orbit.Same end socket to be measured 14, the number of times that elliptical orbit detects is more, and the Detection job of end socket 14 entirety to be measured is higher.The quality inspection that this detection odds ratio specifies according to standard merely and checkability all much higher.
During normal work, according to the parameter declaration of end socket 14 to be measured, adjust the length of ellipsograph slide rail 1, and fix with supporting fixing card 3 on end socket 14 to be measured; According to the tie point of the good slide bar of line of apsides parameter adjustment 5 and central vertical slide block 6 and eccentric cross sliding clock 7; Data cable 11 is connected to handheld terminal 12; Central vertical slide block 6 is returned to zero to ellipsograph slide rail 1 bottom, the oscillogram of handheld terminal 12 is adjusted to zero point; Control eccentric cross sliding clock 7 and slowly slide to the other end from one end of ellipsograph slide rail 1 evenly, while sliding, observe the oscillogram change of handheld terminal 12, when the degree of oscillogram off-axis reaches defect level, the position of record high accuracy displacement sensor roller 9 and the side-play amount of oscillogram.After the detection completing an elliptical orbit, unclamp the clamp nut of fixing card 3, circumference rotates certain angle (master gauge is decided to be 90 °), again carries out detecting step, obtains one group of new fault detection data.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the pressure vessel ellipsoidal head testing instruments based on ellipsograph, it is characterized in that: comprise the ellipsograph slide rail (1) with chute (2), be provided with fixing card (3) and the fastening bolt (4) of supporting installation at the two ends of ellipsograph slide rail (1), ellipsograph slide rail (1) is provided with slide bar (5) by central vertical slide block (6) and eccentric cross sliding clock (7); The eccentric end of described slide bar (5) is the push rod (10) with high accuracy displacement sensor (8), and the end of push rod (10) is provided with high accuracy displacement sensor roller (9); Described high accuracy displacement sensor (8) is connected with handheld terminal (12) by data cable (11).
2. the pressure vessel ellipsoidal head testing instruments based on ellipsograph according to claim 1, is characterized in that: described chute (2) is internal chute structural design.
3. the pressure vessel ellipsoidal head testing instruments based on ellipsograph according to claim 1 and 2, it is characterized in that: described fixing card (3) is with by inner one, outside two adjustment rollers (13) formed, and the clamp nut of described fastening bolt (4) is wing nut.
4. the pressure vessel ellipsoidal head testing instruments based on ellipsograph according to claim 3, is characterized in that: described ellipsograph slide rail (1) is provided with scale.
5. the pressure vessel ellipsoidal head testing instruments based on ellipsograph according to claim 3, is characterized in that: described central vertical slide block (6) and eccentric cross sliding clock (7) are connected by coupling bar with between slide 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 true CN104833304A (en) | 2015-08-12 |
| CN104833304B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364557A (en) * | 2018-02-10 | 2018-08-03 | 西安西元电子科技有限公司 | 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 |
| CN112945062A (en) * | 2021-03-12 | 2021-06-11 | 山西阳煤化工机械（集团）有限公司 | Method for measuring shape deviation of ellipsoidal head |
| CN112945063A (en) * | 2021-03-12 | 2021-06-11 | 山西阳煤化工机械（集团）有限公司 | Method for measuring shape deviation of spherical end socket |
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| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364557A (en) * | 2018-02-10 | 2018-08-03 | 西安西元电子科技有限公司 | Real device of instructing of ceramic tile wainscot engineering |
| 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 |
| CN112945062A (en) * | 2021-03-12 | 2021-06-11 | 山西阳煤化工机械（集团）有限公司 | Method for measuring shape deviation of ellipsoidal head |
| CN112945063A (en) * | 2021-03-12 | 2021-06-11 | 山西阳煤化工机械（集团）有限公司 | Method for measuring shape deviation of spherical end socket |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104833304B (en) | 2018-05-25 |
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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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