CN207816697U - A kind of conduit hardness detection Leeb Hardness Tester clamping device - Google Patents
A kind of conduit hardness detection Leeb Hardness Tester clamping device Download PDFInfo
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- CN207816697U CN207816697U CN201721730322.7U CN201721730322U CN207816697U CN 207816697 U CN207816697 U CN 207816697U CN 201721730322 U CN201721730322 U CN 201721730322U CN 207816697 U CN207816697 U CN 207816697U
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- pipeline
- leeb
- leeb hardness
- clamping device
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- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 238000009987 spinning Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 description 7
- 238000007542 hardness measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model patent discloses a kind of conduit hardness detection Leeb Hardness Tester clamping device, which mainly grips part, Leeb Hardness Tester fixed part and hardometer by pipeline and formed along pipeline three parts of rail block that slide axially.Leeb Hardness Tester can be firmly fixed on measured pipeline by the device, and good support is carried out to pipeline, relative displacement or springing occur when preventing from measuring influences accuracy of measurement, sliding rail can be relied on strictly to move axially Leeb Hardness Tester along tested pipeline simultaneously, convenient for researching and analysing.The device can effectively improve the accuracy of measurement of Leeb Hardness Tester.
Description
Technical field
The present invention relates to the lee ' hardness fields of measurement of pipeline external surface, and in particular to a kind of conduit hardness detection Richter scale
Hardometer clamping device.
Background technology
Nowadays the single-machine capacity of firepower electrical plant constantly rises, and the main steam pressure of extra-supercritical unit reaches 26MPa or more,
Temperature is more than 570 DEG C, therefore more stringent requirements are proposed to the material property at each position of generating set.In the base of firepower electrical plant
Particularly important to the quality progress physical and chemical inspection of pipeline during building and being on active service, since condition limits, detection means is with hardness
Based on detection, supplemented by metal lographic examination.Due to various limitations of Portable Brinell hardness tester, live hardness determination mainly uses
Lee ' hardness detects.
Lee ' hardness is a kind of dynamic loading experiment method, and principle is by loading spring by the carbon of certain mass and diameter
Change the pop-up of wolfram steel ball, and striking work surface, passes through rebound velocity and the impact speed of ball at point sensor measurement distance style 1mm
The ratio of degree characterizes the height of hardness.The experiment power of lee ' hardness detection is smaller, and impression is small, can be used for carrying out tiny area
Hardness measurement.Such as the hardness trend in the heat-affected zone in welding point, decarburized layer hardness determination of steel surface etc..
The influence factor of lee ' hardness measuring accuracy mainly has：Displacement or springing has occurred in test specimen when measurement, to disappear
The elastic potential energy being stored in test specimen has been consumed in impact process, and especially test specimen quality is too small, when integral rigidity is poor；Quilt
If the pipeline test specimen wall thickness of measurement is too small, caliber is excessive, and local stiffness is poor, it can also happen that integral, flexible deforms on section,
Also measurement result can be caused relatively low；The operation technique of testing staff also can generate uncertain influence to final testing result.
The accuracy of lee ' hardness detection can be significantly improved by eliminating or mitigate the influence of above-mentioned factor.
Invention content
The object of the present invention is to provide a kind of conduit hardness detection Leeb Hardness Tester clamping device, which is pressed from both sides by pipeline
Fixed part, Leeb Hardness Tester fixed part and hardometer is held to form along pipeline three, the track part that slides axially, wherein with
Pipeline grips based on part, and tube gripping portion can be adjusted by lead screw to clamp the pipeline of different-diameter, inner
Family name's hardometer can be fixed on the device by pedestal, and Leeb Hardness Tester can be moved axially along tested pipeline, and be passed through
Reading ruler obtains scleroscopic displacement, can provide facility to the hardness distribution trend for such as measuring welding point heat affected area.
To achieve the above object, technical solution provided by the invention is：
A kind of conduit hardness detection Leeb Hardness Tester clamping device, including pipeline grip part, Leeb Hardness Tester
Firm banking and hardometer slide axially rail block along pipeline；
It includes caliper, the fixed baffle of downside, the lead screw across fixed baffle and upside that the pipeline, which grips part,
Fixation V type jaws, the lead screw outer end is that clamp spinning roller, inner end be movable clamping block, passes through rotation and clamps spinning roller and adjust and lives
Dynamic gripping block position, to tightly clamp pipeline；
The Leeb Hardness Tester firm banking is tubulose, is equipped with gasket in its bottom, the hole diameter of the gasket is more than
Leeb Hardness Tester bottom impact body canal major diameter of thread, coordinates the support ring of Leeb Hardness Tester that Leeb Hardness Tester is fixed on gasket
On；Be connected with spring on the gasket, the gasket can move up and down and by spring make Leeb Hardness Tester lower end be pressed on by
Survey pipe surface；Leeb Hardness Tester firm banking outer surface has screw thread, can be anchored on hardometer and slide axially along pipeline
On rail block；
The Leeb Hardness Tester includes reading ruler, displacement knob and moves clamp along the pipeline rail block that slides axially.
Further, the fixed V-type jaw re-entrant angle is 150 °, can prevent pipeline transverse shifting, while fixed V-type pincers
The internal hole of mouth, can be connected with Leeb Hardness Tester firm banking.
Further, the Leeb Hardness Tester firm banking and mobile clamp and reading ruler are an entirety, can be with
Mobile clamp is moved axially along pipeline.
Further, the mobile clamp is connected by dovetail groove with fixed V-type jaw, and the displacement knob can revolve
Turn, the movement of mobile clamp is controlled by internal lead screw.
Compared with prior art, the beneficial effects of the invention are as follows：
The clamping device of the present invention is after clamping hollow pipe, then fixes Leeb Hardness Tester, can completely eliminate survey
The relative displacement or bounce of pipeline and Leeb Hardness Tester when amount.After clamping device is by fixing pipeline, the clamping more than 5 kilograms
Device is connected to become an entirety with pipeline, has carried out good support to it, has increased the rigidity of tested pipe fitting.So the dress
Set the accuracy of measurement that can effectively improve lee ' hardness.Hardometer is pressed in by the spring inside Leeb Hardness Tester firm banking
Pipe surface, it can be ensured that impact head vertical incidence surface of test piece prevents from not being adjacent to caused by manual operation, out of plumb etc. is asked
Topic；And Leeb Hardness Tester can be made appropriate flexible, to adapt to the out-of-flatness of pipe surface；And the registration of reading ruler can be relied on
It is precisely controlled the displacement of Leeb Hardness Tester, while may insure hardness measurement point on same axis direction.
Description of the drawings
Fig. 1 is the front view of the utility model clamping device.
Fig. 2 is the left view of the utility model clamping device.
Fig. 3 is the hardometer firm banking and Leeb Hardness Tester assembling schematic diagram of the utility model clamping device.
In figure：1- Leeb Hardness Testers, 2- reading rulers, 3- displacement knobs, 4- are tested pipe fitting, and 5- moves clamp, 6- calipers, 7-
Fixed baffle, 8- clamp spinning roller, 9- lead screws, 10- movable clamping blocks, 11- fixation V-type jaws, 12- hardometer firm bankings, 13-
Spring, 14- gaskets, 15- Leeb Hardness Tester bottom support rings.
Specific implementation mode
The present invention is further explained in the light of specific embodiments.
A kind of conduit hardness detection Leeb Hardness Tester clamping device, including pipeline grip part, Leeb Hardness Tester
Firm banking and hardometer slide axially rail block along pipeline；
It includes caliper 6, the fixed baffle 7 of downside, 9 and of lead screw across fixed baffle 7 that the pipeline, which grips part,
The fixation V-type jaw 11 of upside, 9 outer end of the lead screw is clamping spinning roller 8, inner end is movable clamping block 10, passes through and rotates clamping
Spinning roller 8 adjusts 10 position of movable clamping block, to tightly clamp pipeline；
The Leeb Hardness Tester firm banking 12 is tubulose, is equipped with gasket 14 in its bottom, the hole of the gasket 14 is straight
Diameter is more than Leeb Hardness Tester bottom impact body canal major diameter of thread, and the support ring 15 of Leeb Hardness Tester is coordinated to consolidate Leeb Hardness Tester
Due on gasket；Spring 13 is connected on the gasket 14, the gasket 14 can move up and down and keep Richter scale hard by spring 13
Degree meter lower end is pressed on tested pipeline surface；12 outer surface of Leeb Hardness Tester firm banking has screw thread, can be anchored on hard
Degree meter slides axially along pipeline on rail block；
The Leeb Hardness Tester includes reading ruler 2, displacement knob 3 and moves clamp 5 along the pipeline rail block that slides axially.
Fixed 11 re-entrant angle of V-type jaw is 150 °, while fixed 11 inside hole of V-type jaw, can be hard with Richter scale
Degree meter firm banking 12 is connected.
The Leeb Hardness Tester firm banking 12 is an entirety with mobile clamp 5 and reading ruler 2, can be with mobile card
First 5 move axially along pipeline.
The mobile clamp 5 is connected by dovetail groove with fixed V-type jaw 11, and the displacement knob 3 can rotate, and pass through
The movement of internal lead screw control movement clamp 5.
A kind of device of specific size is enumerated, the caliper partial-length of the device is 18cm, and movable clamping block thickness is
1cm.The re-entrant angle of fixed V-type jaw is 150 °, which can measure the pipe surface hardness that outer diameter is not more than 17cm.It moves
The maximum displacement of dynamic clamp is 20cm, and displacement concrete numerical value can be obtained by reading ruler.
Pipeline and Leeb Hardness Tester are fastened when use, the measurement button that can press Leeb Hardness Tester at this time is surveyed
Amount, after the measurement for completing a point, swing offset knob, the position that next measurement point is determined according to reading ruler registration carries out
It measures, the lee ' hardness of multiple points can be measured on same axis direction repeatedly.
This clamping device can effectively overcome the relative displacement or bounce of tested pipeline and Leeb Hardness Tester, be adapted to
The out-of-flatness of pipeline-weld region surface can improve the rigidity of test specimen, can effectively improve the accurate of lee ' hardness measurement
Degree.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, any ripe
Professional and technical personnel is known, without departing from the scope of the present invention, according to the technical essence of the invention, to above real
Apply any simple modification, equivalent replacement and improvement etc. made by example, still fall within technical solution of the present invention protection domain it
It is interior.
Claims (4)
1. a kind of conduit hardness detection Leeb Hardness Tester clamping device, it is characterised in that：Including pipeline grip part, it is inner
Family name's hardometer firm banking and hardometer slide axially rail block along pipeline；
It includes caliper (6), the fixed baffle (7) of downside, the lead screw across fixed baffle (7) that the pipeline, which grips part,
(9) and the fixation V-type jaw (11) of upside, lead screw (9) outer end be clamp spinning roller (8), inner end is movable clamping block (10),
Spinning roller (8) is clamped by rotation and adjusts movable clamping block (10) position, to tightly clamp pipeline；
The Leeb Hardness Tester firm banking (12) is tubulose, and gasket (14), the hole of the gasket (14) are equipped in its bottom
Diameter is more than Leeb Hardness Tester bottom impact body canal major diameter of thread, coordinates the support ring (15) of Leeb Hardness Tester by lee ' hardness
Meter is fixed on gasket；Spring (13) is connected on the gasket (14), the gasket (14) can move up and down and pass through spring
(13) Leeb Hardness Tester lower end is made to be pressed on tested pipeline surface；Leeb Hardness Tester firm banking (12) outer surface has spiral shell
Line can be anchored on hardometer and slide axially on rail block along pipeline；
The Leeb Hardness Tester includes reading ruler (2), displacement knob (3) and mobile clamp (5) along the pipeline rail block that slides axially.
2. conduit hardness detection Leeb Hardness Tester clamping device according to claim 1, it is characterised in that：The fixation
V-type jaw (11) re-entrant angle is 150 °, while the internal hole of fixed V-type jaw (11), can be with Leeb Hardness Tester firm banking
(12) it is connected.
3. conduit hardness detection Leeb Hardness Tester clamping device according to claim 1, it is characterised in that：The Richter scale
Hardometer firm banking (12) is an entirety with mobile clamp (5) and reading ruler (2), can be as mobile clamp (5) is along pipe
Road moves axially.
4. conduit hardness detection Leeb Hardness Tester clamping device according to claim 1, it is characterised in that：The movement
Clamp (5) is connected by dovetail groove with fixed V-type jaw (11), and the displacement knob (3) can rotate, and pass through internal lead screw control
The movement of the mobile clamp (5) of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721730322.7U CN207816697U (en) | 2017-12-13 | 2017-12-13 | A kind of conduit hardness detection Leeb Hardness Tester clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721730322.7U CN207816697U (en) | 2017-12-13 | 2017-12-13 | A kind of conduit hardness detection Leeb Hardness Tester clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816697U true CN207816697U (en) | 2018-09-04 |
Family
ID=63332141
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721730322.7U Active CN207816697U (en) | 2017-12-13 | 2017-12-13 | A kind of conduit hardness detection Leeb Hardness Tester clamping device |
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| Country | Link |
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| CN (1) | CN207816697U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884265A (en) * | 2017-12-13 | 2018-04-06 | 江苏方天电力技术有限公司 | Leeb Hardness Tester clamping device is used in a kind of conduit hardness detection |
| CN109632473A (en) * | 2019-02-01 | 2019-04-16 | 江苏方天电力技术有限公司 | A kind of tubular part hardness measurement fixture |
| CN110806361A (en) * | 2019-12-16 | 2020-02-18 | 江西桔王药业有限公司 | Hardness tester for granular tablets |
| CN111766238A (en) * | 2020-06-28 | 2020-10-13 | 河南省锅炉压力容器安全检测研究院 | Adjustable metal detection tool |
| CN114559371A (en) * | 2022-03-09 | 2022-05-31 | 苏州工业职业技术学院 | A clamping device for processing of lamellar metallographic specimen |
-
2017
- 2017-12-13 CN CN201721730322.7U patent/CN207816697U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884265A (en) * | 2017-12-13 | 2018-04-06 | 江苏方天电力技术有限公司 | Leeb Hardness Tester clamping device is used in a kind of conduit hardness detection |
| CN107884265B (en) * | 2017-12-13 | 2024-01-26 | 江苏方天电力技术有限公司 | Richter clamping device for detecting hardness of pipeline |
| CN109632473A (en) * | 2019-02-01 | 2019-04-16 | 江苏方天电力技术有限公司 | A kind of tubular part hardness measurement fixture |
| CN110806361A (en) * | 2019-12-16 | 2020-02-18 | 江西桔王药业有限公司 | Hardness tester for granular tablets |
| CN110806361B (en) * | 2019-12-16 | 2021-12-07 | 江西桔王药业有限公司 | Hardness tester for granular tablets |
| CN111766238A (en) * | 2020-06-28 | 2020-10-13 | 河南省锅炉压力容器安全检测研究院 | Adjustable metal detection tool |
| CN111766238B (en) * | 2020-06-28 | 2023-07-07 | 河南省锅炉压力容器安全检测研究院 | Metal detects frock with adjustable |
| CN114559371A (en) * | 2022-03-09 | 2022-05-31 | 苏州工业职业技术学院 | A clamping device for processing of lamellar metallographic specimen |
| CN114559371B (en) * | 2022-03-09 | 2023-10-31 | 苏州工业职业技术学院 | Clamping device for processing lamellar metallographic specimen |
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