CN204854557U - Novel outside of tubes wall attenuate dipperstick - Google Patents
Novel outside of tubes wall attenuate dipperstick Download PDFInfo
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- CN204854557U CN204854557U CN201520359962.6U CN201520359962U CN204854557U CN 204854557 U CN204854557 U CN 204854557U CN 201520359962 U CN201520359962 U CN 201520359962U CN 204854557 U CN204854557 U CN 204854557U
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Abstract
The utility model discloses a novel outside of tubes wall attenuate dipperstick, including chi frame, slip scale plate and slip vernier, chi frame on be equipped with the arc groove, the below of chi frame be equipped with with the surveyed draw -in groove of managing the phase coupling, slip scale plate left end be the right angle scale, center department is equipped with the straight flute, the slip scale plate install in the arc groove of chi frame, the slip vernier is installed in the straight flute of slip scale plate. The utility model discloses utilize in the outside of tubes wall attenuate volume of measurationing, the measurement that can measure the attenuate degree of depth such as a type, surface corrosion hole, hard defects, it is convenient to measure, and the reading is directly perceived, and the result is not influenced by material, tubular product internal soundness, couplant and intraductal stress etc. And this dipperstick is lower than ultrasonic thickness measurement appearance cost, and is convenient, quick.
Description
Technical field
The utility model relates to field of cable technology, particularly relates to a kind of stent-type polycore cable be applied in civilian, industrial, business and building.
Background technology
Current trommel survey instrument is supersonic thickness meter.Supersonic thickness meter carries out thickness measure according to Ultrasonic Pulse-Echo principle, when the ultrasonic pulse launched when popping one's head in arrives material interface by testee, pulse is reflected back toward the thickness that the time of propagating in the material by accurately measuring ultrasound wave of popping one's head in determines measured material.All ultrasound waves that can make all can adopt this principle to measure with the various materials that a constant speed is propagated therein.Supersonic thickness meter: measurement range: 0.65 ~ 400mm, maximal accuracy: 0.01mm.
Prior art Problems existing and shortcoming
(1) workpiece surface roughness is excessive, and cause probe and surface of contact coupling effect poor, reflection echo is low, even cannot receive echoed signal, and a certain size plane of need polishing is to guarantee that probe contacts is abundant.
(2) part curvature radius is too little, and especially during small diameter tube thickness measuring, because conventional detecting head surface is plane, be point cantact or linear contact lay with curved face contact, sound intensity transmission rate low (being coupled bad), needs the probe of configure dedicated, and cost improves.
(3) foundry goods, austenitic steel are because of uneven microstructure or coarse grains, and produce serious scatter attenuation when ultrasound wave passes wherein, the ultrasound wave be scattered is along the propagated of complexity, echo is likely made to fall into oblivion, cause and do not show, need the probe of configure dedicated, cost improves.
(5) probe has certain wearing and tearing after connecing and using a period of time, causes sensitivity to decline, thus causes display incorrect, need change probe or return factory and carry out technical finesse to probe.
(6) the measured object back side has macro-corrosion to cheat, and because measured object another side has rust staining, corrosion pit, causes acoustic attenuation, causes the random change of reading, in extreme circumstances even non-metering.
(7) have sediment in testee (as pipeline), when sediment and workpiece acoustic impedance are more or less the same, thicknessmeter displayed value is that wall thickness adds thickness of deposits.
(8) when material internal existing defects (as be mingled with, interlayer etc.), truly material thickness can not be reflected.
(9) impact of temperature.The velocity of sound in general solid material raises with its temperature and reduces, and have test figure to show, hot material often increases by 100 ° of C, and the velocity of sound declines 1%, causes measurement inaccurate.
(10) impact of couplant, couplant be used to get rid of probe and testee between air, make ultrasonic wave energy effectively penetrate workpiece and reach testing goal, if select kind or using method improper, will cause error or coupling mark glimmer, cannot measure.
(11) velocity of sound selects mistake, before measuring workpieces, according to material category its velocity of sound preset or measure the velocity of sound according to calibrated bolck is counter.When (conventional test block is steel) goes again to measure another kind of material after rectifying an instrument with a kind of material, the result of mistake will be produced.Require correctly to identify material before measuring gauger, select the suitable velocity of sound.
(12) impact of stress, in-service equipment, pipeline major part have stress to exist, and the stress state of solid material has a certain impact to the velocity of sound, when stress direction is consistent with the direction of propagation, if stress is compressive stress, then effect of stress makes workpiece elasticity increase, and the velocity of sound is accelerated; Otherwise if stress is tension, then the velocity of sound slows down.When stress and direction of wave travel differ to time, in wave process, particle vibration track disturbs by stress, direction of wave travel produce depart from; Show according to data, general stress increases, and the velocity of sound slowly increases.
(13) oxidation on metal surface thing or paint tectal impact, the dense oxide that metal surface produces or paint anticorrosive coat, though be combined closely with matrix material, without sharp interface, but the velocity of propagation of the velocity of sound in two kinds of materials is different, thus cause error, and different with mantle thickness, error size is also different.
Utility model content
The utility model is in order to solve the problem of prior art, and provide a kind of measurement convenient, reading is directly perceived, and result is by the thinning dip stick of New pipe outer wall that material, tubing internal soundness, couplant and pipe internal stress etc. affect.
The thinning dip stick of a kind of New pipe outer wall described in the utility model, comprises chi frame, slip scaleplate and slip vernier, it is characterized in that: described chi frame is provided with arc groove, and the below of chi frame is provided with the draw-in groove be coupled with institute measured tube; Described slip scaleplate left end is right angle rule, and center is provided with straight trough; Described slip scaleplate is arranged in the arc groove of chi frame, and slip vernier is arranged in the straight trough of slip scaleplate.
Further improvement, described draw-in groove is up-narrow and down-wide type structure, and the centre of draw-in groove is set to the vertical straight arm of angle, and being set in the upper end of right-angle side is 135 degree of hypotenuses with right-angle side, and lower end is set to the arc limit that radian is 20 degree.
Further improvement, described slip scaleplate is fixedly mounted in the arc groove of chi frame by screw, and can be slided in arc groove by the adjustment of screw.
Further improvement, described slip vernier is fixedly mounted in the straight trough of slip scaleplate by screw, and can be moved up and down in straight trough by the adjustment of screw.
Further improvement, described slip vernier two ends is triangle, is convenient for measuring.
Principle of the present utility model is:
According to the dip stick that the choice of diameter conforms to caliber, utilize the circularity of outer tube surface for reference field, the chi frame draw-in groove of dip stick is vertically placed on pipe outer wall, make both sides circular arc and the pipe outer wall good contact of chi, slip scaleplate is rotated to the maximum region of outward appearance Reducing thickness, slip vernier is moved to tube surface, move micro-for slip scaleplate left and right simultaneously, after finding thinning maximum point, slip scaleplate and slip vernier gib screw are fixed, read data, record.
Compared with prior art, the utility model beneficial effect is: 1, measurement result can not affect by workpiece surface roughness, not by part curvature effect of radius, not by the impact of stress, do not affect by measured object back side etch pit, by testee as pipeline, in have sediment to affect, do not affect by material internal defect, be not subject to the impact of temperature; In addition, during measurement, do not need couplant, be applicable to all material type workpiece.2, be mainly used in pipe outer wall Reducing thickness to measure, can the measurement of the thinning degree of depth such as measuring surface type, surface corrosion hole, hard defects, it is convenient to measure, and reading is directly perceived, and result does not affect by material, tubing internal soundness, couplant and pipe internal stress etc.3, comparatively supersonic thickness meter cost is lower for this dip stick, convenient, fast.4, the degree of accuracy of this dip stick is 0.1mm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is side view of the present utility model;
Fig. 3 is the schematic diagram of the utility model when measuring.
Embodiment
The thinning dip stick of a kind of New pipe outer wall as shown in Figure 1, comprise chi frame 1, slip scaleplate 2 and slip vernier 3, described chi frame 1 is provided with arc groove 4, and the below of chi frame 1 is provided with the draw-in groove 5 be coupled with institute measured tube; Described slip scaleplate 2 left end is right angle rule 6, and center is provided with straight trough 7; Described slip scaleplate 2 is arranged in the arc groove 4 of chi frame, and slip vernier 3 is arranged in the straight trough 7 of slip scaleplate 2.
Wherein, described draw-in groove 5 is in up-narrow and down-wide type structure, and the centre of draw-in groove is set to the vertical straight arm of angle, and being set in the upper end of right-angle side is 135 degree of hypotenuses with right-angle side, and lower end is set to the arc limit that radian is 20 degree.
Slip scaleplate 2 is as shown in Figure 2 fixedly mounted in the arc groove 4 of chi frame 1 by slip scaleplate screw 9, and can be slided in arc groove 4 by the adjustment of screw.Described slip vernier 3 is fixedly mounted in the straight trough 7 of slip scaleplate 2 by slip vernier screw 8, and can be moved up and down in straight trough 7 by the adjustment of screw.
As shown in Figure 3, measure in conjunction with pipe, comprise the following steps:
1) measured tube surface dust stratification is removed clean;
2) according to the dip stick that the choice of diameter conforms to caliber;
3) this dip stick is vertically placed on pipe outer wall, makes both sides circular arc and the pipe outer wall good contact of chi;
4) slip scaleplate is rotated to the maximum region of outward appearance Reducing thickness;
5) slip vernier is moved to tube surface, move micro-for slip scaleplate left and right simultaneously, after finding thinning maximum point, slip scaleplate and slip vernier gib screw are fixed;
6) reading data is 2.8mm.
The utility model embody rule approach is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection domain of the present utility model.
Claims (5)
1. the thinning dip stick of New pipe outer wall, comprise chi frame (1), slip scaleplate (2) and slip vernier (3), it is characterized in that: described chi frame (1) is provided with arc groove (4), the below of chi frame (1) is provided with the draw-in groove (5) be coupled with institute measured tube; Described slip scaleplate (2) left end is right angle rule (6), and center is provided with straight trough (7); Described slip scaleplate (2) is arranged in the arc groove (4) of chi frame, and slip vernier (3) is arranged in the straight trough (7) of slip scaleplate (2).
2. the thinning dip stick of New pipe outer wall according to claim 1, it is characterized in that: described draw-in groove (5) is in up-narrow and down-wide type structure, the centre of draw-in groove is set to the vertical straight arm of angle, and being set in the upper end of right-angle side is 135 degree of hypotenuses with right-angle side, and lower end is set to the arc limit that radian is 20 degree.
3. the thinning dip stick of New pipe outer wall according to claim 1, it is characterized in that: described slip scaleplate (2) is fixedly mounted in the arc groove (4) of chi frame by slip scaleplate screw (9), and can be slided in arc groove (4) by the adjustment of screw.
4. the thinning dip stick of New pipe outer wall according to claim 1, it is characterized in that: described slip vernier (3) is fixedly mounted in the straight trough (7) of slip scaleplate (2) by slip vernier screw (8), and can be moved up and down in straight trough (7) by the adjustment of screw.
5. the thinning dip stick of New pipe outer wall according to claim 1, is characterized in that: described slip vernier (3) two ends is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359962.6U CN204854557U (en) | 2015-05-29 | 2015-05-29 | Novel outside of tubes wall attenuate dipperstick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359962.6U CN204854557U (en) | 2015-05-29 | 2015-05-29 | Novel outside of tubes wall attenuate dipperstick |
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| CN204854557U true CN204854557U (en) | 2015-12-09 |
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| CN201520359962.6U Active CN204854557U (en) | 2015-05-29 | 2015-05-29 | Novel outside of tubes wall attenuate dipperstick |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113425244A (en) * | 2021-06-25 | 2021-09-24 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Sclera measuring device |
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2015
- 2015-05-29 CN CN201520359962.6U patent/CN204854557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113425244A (en) * | 2021-06-25 | 2021-09-24 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Sclera measuring device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |