CN204536287U - On-line checkingi ultrasonic inspection lining bar syndeton - Google Patents
On-line checkingi ultrasonic inspection lining bar syndeton Download PDFInfo
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- CN204536287U CN204536287U CN201520255497.1U CN201520255497U CN204536287U CN 204536287 U CN204536287 U CN 204536287U CN 201520255497 U CN201520255497 U CN 201520255497U CN 204536287 U CN204536287 U CN 204536287U
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- rod iron
- cylindrical boss
- circular hole
- face
- indent circular
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Abstract
The utility model provides a kind of on-line checkingi ultrasonic inspection lining bar syndeton, comprise nose rod iron and recessed end rod iron, one side end face of described nose rod iron is provided with a cylindrical boss, one side end face of described recessed end rod iron is provided with the indent circular hole corresponding with the profile of cylindrical boss, the bottom end face center of described indent circular hole is provided with artificial cross-drilled hole, and the base of described cylindrical boss and nose rod iron end contact place are provided with the excessive face of circular cone at outward-dipping 30 degree of angles; The periphery of described indent circular hole is provided with interior button screw thread, and the outer circumference surface of described cylindrical boss is provided with outer button screw thread, and garden, the bottom periphery of described indent circular hole is provided with the withdrawing inclined-plane of miter angle; Described artificial cross-drilled hole inside is provided with filling gel.Compared with prior art, the utility model has that strength of joint is high, welding deformation is few, structure is simple, verification is accurate, the simple advantage of processing technology.
Description
Technical field
The utility model relates to a kind of detecting instrument accessory, particularly relates to a kind of on-line checkingi ultrasonic inspection lining bar syndeton for the accuracy of checksum test ultrasonic inspection detector.
Background technology
On-line checkingi ultrasonic inspection lining bar refers to that inside is processed with the rod iron of artificial cross-drilled hole and artificial defect, and by 3 sections or 4 sections of rod irons by being made of welded connection, diameter is between 13mm to 180mm.On-line checkingi ultrasonic inspection lining bar is mainly used in carrying out checksum test to the accuracy of detection of ultrasonic testing apparatus.Whole lining bar requires flexibility≤1 ‰; Equivalent defect≤0.3mm; And enough strength of joint should be had, indeformable to ensure in handling is moved, do not allow overall processing after welding, only allow the meticulous reconditioning process in butt welded seam place, current connected mode mainly contains: 1, rod iron central protrusion taper docking mode.2, the end plane through mirror process directly piles welding connecting mode.3, rod iron thread connecting mode.Central protrusion taper docking mode advantage is to ensure centralized positioning between each section, weak point is that this connected mode composition surface itself is without any intensity, must rely on and strengthen welding capacity to ensure bulk strength, the depth of weld should reach more than 1/3 of diameter, certainly leads to flexural deformation in the middle of welding.The thin lining bar of this deflection carefully can be adjusted by Lengthened lathe, and diameter more than 40 rod iron is difficult to adjustment flexibility, sees Fig. 1.The direct built-up welding connected mode in end of mirror process, require very high to the equipment and process of lining bar every section end face mirror process, and be only applicable to the small dimension rod iron of diameter less than 40, equally, for ensureing the intensity of whole rod iron, every section of lining bar length connection within 500mm, the depth of weld will reach 1/4 of diameter, every section of lining bar length is in the connection of more than 500mm, and the depth of weld should reach more than 1/3 of diameter, certainly leads to flexural deformation in the middle of welding.The thin rod iron of this deflection carefully can be adjusted by Lengthened lathe, and diameter more than 40 rod iron is difficult to adjustment flexibility, sees Fig. 2.Rod iron thread connecting mode, strength of joint is better, and exocuticle only needs a small amount of welding just can reach bulk strength requirement, and namely lining bar flexibility reaches requirement without the need to adjustment.Unavoidable, internal and external threads, when lathe process, needs about 5mm relief groove a, and accuracy of screw machining requires high.Although along the rear noiseless impact of oblique angle reflection, if accuracy of screw machining is not high, still there is certain noise in slope of thread ultrasound wave when detecting a flaw.Especially conventional relief groove a, by directly affecting the acoustical behavior of flaw detection, increases noise effect, sees Fig. 3.
Given this, be necessary to provide a kind of new on-line checkingi ultrasonic inspection lining bar syndeton to solve the deficiency of above-mentioned three kinds of connected modes.
Summary of the invention
The technical matters that the utility model solves is to provide that a kind of strength of joint is high, welding deformation is few, structure is simple, verification is accurate, processing technology simple on-line checkingi ultrasonic inspection lining bar syndeton.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of on-line checkingi ultrasonic inspection lining bar syndeton, comprise appearance cylindrical and the nose rod iron of the mutual concavo-convex docking that diameter is identical and recessed end rod iron, one side end face of described nose rod iron is provided with a cylindrical boss, one side end face of described recessed end rod iron is provided with the indent circular hole corresponding with the profile of cylindrical boss, it is characterized in that: the bottom end face center of described indent circular hole is provided with artificial cross-drilled hole, the base of described cylindrical boss and nose rod iron end contact place are provided with the excessive face of circular cone at outward-dipping 30 degree of angles, the periphery of described indent circular hole is provided with interior button screw thread, and the outer circumference surface of described cylindrical boss is provided with outer button screw thread, and garden, the bottom periphery of described indent circular hole is provided with the withdrawing inclined-plane of miter angle, the circumferential periphery of described cylindrical boss is provided with the 45 degree inclined-planes corresponding with withdrawing inclined-plane, and the circumferential periphery of described indent circular hole is provided with the inclined-plane at 30 degree of corresponding angles of face excessive in circular cone.
As the further improvement of the technical program, described artificial cross-drilled hole inside is provided with filling gel.
As the further improvement of the technical program, described nose rod iron is provided with bevel for welding with the periphery, gap that contacts of recessed end rod iron, and the degree of depth of bevel for welding is 1/20 of nose rod iron or recessed end rod iron outside diameter, and the bevel angle of bevel for welding is 30 degree.
Compared with prior art, the utility model on-line checkingi ultrasonic inspection lining bar syndeton employing center thread connecting mode greatly improves the strength of joint between lining bar section and section, so lining bar section is welded with the top layer between section can design the minimum depth of weld, postwelding welding seam grinding workload significantly declines, and the flexural deformation produced because of welding is few; Utilize withdrawing inclined-plane and the excessive face of circular cone to replace traditional relief groove, decrease the impact of acoustical behavior of traditional relief groove on flaw detection, improve the verification accuracy of lining bar, the center that simultaneously improves is threaded intensity; The artificial cross-drilled hole of filling gel shutoff, filling gel without impact on UT (Ultrasonic Testing), effectively prevents in artificial cross-drilled hole simultaneously and is mixed into impurity.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of central protrusion taper docking mode of the prior art.
Fig. 2 is the schematic diagram of the direct built-up welding connected mode in end of a kind of mirror process of the prior art.
Fig. 3 is the schematic diagram of a kind of rod iron thread connecting mode of the prior art.
Fig. 4 is the schematic diagram of on-line checkingi ultrasonic inspection lining bar syndeton described in the utility model.
Fig. 5 is the structural representation of nose rod iron described in the utility model.
Fig. 6 is the structural representation of recessed end rod iron described in the utility model.
Fig. 7 is the principle of work schematic diagram on withdrawing inclined-plane described in the utility model.
Component names corresponding in figure is: detain button screw thread in screw thread, 21 indent circular holes, 22 withdrawing inclined-planes, 23 outside a relief groove, 1 nose rod iron, 2 recessed end rod irons, 3 artificial cross-drilled holes, 4 bevel for weldings, 11 cylindrical bosses, the 12 excessive faces of circular cone, 13.
Embodiment
Refer to shown in Fig. 4-Fig. 6, the utility model provides a kind of on-line checkingi ultrasonic inspection lining bar syndeton, comprise appearance cylindrical and the nose rod iron 1 of the mutual concavo-convex docking that diameter is identical and recessed end rod iron 2, one side end face of described nose rod iron is provided with a cylindrical boss 11, one side end face of described recessed end rod iron is provided with the indent circular hole 21 corresponding with the profile of cylindrical boss, the bottom end face center of described indent circular hole is provided with artificial cross-drilled hole 3, the base of described cylindrical boss and nose rod iron end contact place are provided with the excessive face 12 of circular cone at outward-dipping 30 degree of angles, the periphery of described indent circular hole is provided with interior button screw thread 23, and the outer circumference surface of described cylindrical boss is provided with outer button screw thread 13, and the lower circumference limit of described indent circular hole is provided with the withdrawing inclined-plane 22 of miter angle, the circumferential periphery of described cylindrical boss is provided with the 45 degree inclined-planes corresponding with withdrawing inclined-plane 22, and the circumferential periphery of described indent circular hole is provided with the inclined-plane at 12 corresponding 30 degree angles excessive in circular cone.Described artificial cross-drilled hole inside is provided with filling gel.Described nose rod iron is provided with bevel for welding 4 with the periphery, gap that contacts of recessed end rod iron, and the degree of depth of bevel for welding is 1/20 of nose rod iron or recessed end rod iron outside diameter, and the bevel angle of bevel for welding is 30 degree.
Add man-hour, the nose rod iron that need connect, take axial line as benchmark, the cylindrical boss 11 of certain length is processed in one end, and the base of cylindrical boss is the excessive face of circular cone at outward-dipping 30 degree of angles, straight portion processing outer button screw thread 13; The indent circular hole 21 with cylindrical boss equal length is processed in one end of recessed end rod iron, and the lower circumference limit of indent circular hole is provided with the withdrawing inclined-plane 22 of miter angle, button screw thread 23 in straight portion processing.Outer button screw thread 13 and interior button screw thread 23 diameter are as the criterion with the D/2 round numbers of on-line checkingi ultrasonic inspection lining bar diameter, and pitch applies mechanically nominal standard.
45 degree of inclination withdrawing inclined-planes, compared with conventional relief groove, effectively can be evaded flaw detection and to make an uproar sonic reflection, see Fig. 7, ultrasound wave no reflection events noise after the reflection of withdrawing inclined-plane miter angle that detector is vertically injected.45 degree of inclination withdrawing inclined-planes
The center that can also realize is located rapidly.Centered by cause, thread connecting mode greatly improves the contact strength between on-line checkingi ultrasonic inspection lining bar section and section, so top layer bevel for welding can design the minimum degree of depth, this is just for argon arc welding creates condition, because welding bead is very little, therefore postwelding welding seam grinding workload significantly declines.
After the artificial cross-drilled hole processing in inside of on-line checkingi ultrasonic inspection lining bar, use filling gel shutoff cross-drilled hole, filling gel without impact on UT (Ultrasonic Testing), effectively prevents in cross-drilled hole simultaneously and is mixed into other impurity.
The above; it is only most preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; any those of ordinary skill in the art; do not departing under technical solutions of the utility model ambit; utilize the method content of above-mentioned announcement to make many possible variations and modification to technical solutions of the utility model, all belong to the scope of claims protection.
Claims (3)
1. an on-line checkingi ultrasonic inspection lining bar syndeton, comprise appearance cylindrical and the nose rod iron that diameter is identical and recessed end rod iron, one side end face of described nose rod iron is provided with a cylindrical boss, one side end face of described recessed end rod iron is provided with the indent circular hole corresponding with the profile of cylindrical boss, it is characterized in that: the bottom end face center of described indent circular hole is provided with artificial cross-drilled hole, the base of described cylindrical boss and nose rod iron end contact place are provided with the excessive face of circular cone at outward-dipping 30 degree of angles; The periphery of described indent circular hole is provided with interior button screw thread, and the outer circumference surface of described cylindrical boss is provided with outer button screw thread, and garden, the bottom periphery of described indent circular hole is provided with the withdrawing inclined-plane of miter angle; The circumferential periphery of described cylindrical boss is provided with the 45 degree inclined-planes corresponding with withdrawing inclined-plane, and the circumferential periphery of described indent circular hole is provided with the inclined-plane at 30 degree of corresponding angles of face excessive in circular cone.
2. on-line checkingi ultrasonic inspection lining bar syndeton according to claim 1, is characterized in that: described artificial cross-drilled hole inside is provided with filling gel.
3. on-line checkingi ultrasonic inspection lining bar syndeton according to claim 1, it is characterized in that: described nose rod iron is provided with bevel for welding with the periphery, gap that contacts of recessed end rod iron, the degree of depth of bevel for welding is 1/20 of nose rod iron or recessed end rod iron outside diameter, and the bevel angle of bevel for welding is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255497.1U CN204536287U (en) | 2015-04-24 | 2015-04-24 | On-line checkingi ultrasonic inspection lining bar syndeton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255497.1U CN204536287U (en) | 2015-04-24 | 2015-04-24 | On-line checkingi ultrasonic inspection lining bar syndeton |
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| Publication Number | Publication Date |
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| CN204536287U true CN204536287U (en) | 2015-08-05 |
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| CN201520255497.1U Expired - Fee Related CN204536287U (en) | 2015-04-24 | 2015-04-24 | On-line checkingi ultrasonic inspection lining bar syndeton |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841399A (en) * | 2016-12-19 | 2017-06-13 | 内蒙古北方重工业集团有限公司 | A kind of bar ultrasound automatic detection flat-bottom hole reference block and preparation method |
| CN110412128A (en) * | 2019-07-22 | 2019-11-05 | 中国航发北京航空材料研究院 | A kind of high temperature alloy Thin-diameter rod non-destructive testing test block |
-
2015
- 2015-04-24 CN CN201520255497.1U patent/CN204536287U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841399A (en) * | 2016-12-19 | 2017-06-13 | 内蒙古北方重工业集团有限公司 | A kind of bar ultrasound automatic detection flat-bottom hole reference block and preparation method |
| CN106841399B (en) * | 2016-12-19 | 2020-03-17 | 内蒙古北方重工业集团有限公司 | Preparation method of flat-bottom hole contrast test block for bar ultrasonic automatic detection |
| CN110412128A (en) * | 2019-07-22 | 2019-11-05 | 中国航发北京航空材料研究院 | A kind of high temperature alloy Thin-diameter rod non-destructive testing test block |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20170424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |