CN201757747U - TOFD ultrasonic detection scanning rack - Google Patents

TOFD ultrasonic detection scanning rack Download PDF

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Publication number
CN201757747U
CN201757747U CN2010202702913U CN201020270291U CN201757747U CN 201757747 U CN201757747 U CN 201757747U CN 2010202702913 U CN2010202702913 U CN 2010202702913U CN 201020270291 U CN201020270291 U CN 201020270291U CN 201757747 U CN201757747 U CN 201757747U
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CN
China
Prior art keywords
hand thread
thread screw
probe
scanning
detection
Prior art date
Application number
CN2010202702913U
Other languages
Chinese (zh)
Inventor
刘立群
周凤革
Original Assignee
中国第一重型机械股份公司
中国第一重型机械集团大连加氢反应器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中国第一重型机械股份公司, 中国第一重型机械集团大连加氢反应器制造有限公司 filed Critical 中国第一重型机械股份公司
Priority to CN2010202702913U priority Critical patent/CN201757747U/en
Application granted granted Critical
Publication of CN201757747U publication Critical patent/CN201757747U/en

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Abstract

The utility model belongs to time-of-flight diffraction (TOFD) detection devices for nondestructive detection, and particularly relates to a TOFD ultrasonic detection scanning rack, which is characterized in that the bottom ends of the two legs of an n-shaped push-pull rod are hinged to the center parts of two side beams of a scanning rack body; more than one pair of probe center distance adjusting devices are symmetrically mounted at the center parts of the equidirectional side surfaces of a front beam and a rear beam of the scanning rack body; each probe center distance adjusting device comprises a transmission rod, a transmission rod seat, an adjusting wheel, a probe rack, a left handed thread screw and a right handed thread screw; and the left handed thread screws and the right handed thread screws are driven to slide synchronously by rotating the adjusting wheels, so that each pair of probe center distances can be adjusted. The utility model has the benefits of reasonable design, compact structure, simplicity and practicability, can not only improve the accuracy and the degree of precision of detection results, but also be used for detection on the spot conveniently, and has the characteristics of being operated conveniently, improving the work efficiency, saving the detection cost and being used very conveniently.

Description

Diffraction time difference method ultrasonic inspecting and scanning frame

Technical field

The utility model belongs to the diffraction time difference method pick-up unit of Non-Destructive Testing, particularly a kind of diffraction time difference method ultrasonic inspecting and scanning frame.

Background technology

As everyone knows, diffraction time difference method is a kind of Non-Destructive Testing new technology, and main dependence obtains diffraction energy from the end points of test specimen inner structure to be checked and detect defective.This detection need be used one or more pairs of ultrasonic probes, and when detecting weld seam, every pair of probe phase butt welded seam is symmetrically distributed, travel-time by accurate measurement diffracted wave and utilize trigonometric equation accurately to determine the size and the position of defective.Diffraction time difference method determines that the levels of precision of defect size and position and the levels of precision that probe distributes have much relations, probe phase butt welded seam track asymmetric or that walk in testing process can not accurately be located, and can the size and the position measurement of defective be made a big impact.In addition, diffraction time difference method detects and to require high efficient and operate easily, need guarantee the relative position and the stable motion of popping one's head in by physical construction.

At present, the structure of the scanning frame that uses in the diffraction time difference method Ultrasonic Detection comprises by scanning support body and the probe holder that probe is housed and forming, this scanning support body is made by high-strength aluminum alloy, be between two straight fine strains of millet, to connect the square support body that a plurality of crossbeams that are parallel to each other are formed, each crossbeam center line two side bar by the screw symmetry the fixing probe holder that probe is housed more than a pair of; The size that is loaded on the centre distance of every pair of probe holder on the crossbeam requires to determine according to detecting, so its centre distance or consistent or inconsistent.The shortcoming and defect part that it exists:

1, when regulating the centre distance of every pair of probe holder, the full gib screw that loads and unloads on the probe holder by craft realizes, so causes both regulating inaccurate, requires great effort not only but also time-consuming.

2, when scanning, be to move by people's hand propelled scanning support body body, can not guarantee the relative position and the stable motion of popping one's head in; Can the size and the position measurement of defective be made a big impact.

Summary of the invention

The utility model is intended to the shortcoming and defect part that exists in above-mentioned technology, realize accurately regulating and determining the relative position of probe by adopting lead screw transmission, and a kind of diffraction time difference method ultrasonic inspecting and scanning frame is provided; This scanning frame is not only reasonable in design, and compact conformation is simple and practical, can improve the accuracy and the levels of precision of testing result, is convenient to on-the-spot the detection again and uses, and have simple operation, increases work efficiency, and save and detect cost and use characteristics such as very convenient,

The purpose of this utility model is to adopt following technical scheme to realize: described diffraction time difference method ultrasonic inspecting and scanning frame, comprise the scanning support body, it is characterized in that: with two leg bottoms of " ∏ " shape pull bar, be hinged on the middle part of the straight fine strain of millet in scanning support body both sides by the hinge symmetry, center probe more than the middle part symmetry installing of each crossbeam is a pair of is apart from regulating device, described every pair of center probe apart from regulating device by drive link, the transmission pole socket, regulating wheel, probe holder, left-hand thread screw and right-hand thread screw are formed, on beam sides, connect the transmission pole socket, activity is packed into by a left side in the transmission pole socket, the drive link that the right-hand thread section is formed, install regulating wheel on the bar section of the drive link in the transmission pole socket, the left-hand thread screw that on the left-hand thread section, is connected with a joggle, the right-hand thread screw is connected with a joggle on the right-hand thread section; The lateral surface of described left-hand thread screw and right-hand thread screw is all installed flexible probe holder, is provided with the chute that slides along beam sides in the surface of contact between left-hand thread screw and right-hand thread screw and beam sides; By rotating the synchronous slip of regulating wheel drive left-hand thread screw and right-hand thread screw, realize the adjusting of every pair of center probe distance.

Described flexible probe holder is a pocketed springs on the spring stack in each left-hand thread screw and right-hand thread screw, and spring connects probe holder.

The equal in length of the left and right thread segment on described each drive link.

Owing in the utility model, be provided with the drive link of forming by left and right thread segment, just can realize accurately regulating and determining the relative position of probe, as long as the diffraction time difference method detection probe is installed on the left and right screw thread screw; According to detecting the centre distance that requires to regulate every pair of probe, make every pair of probe that the distance that meets technical requirement be arranged on drive link; Drive whole scanning support body motion by push-and-pull " ∏ " shape pull bar, finish detection.

Combine the above technical scheme of being taked, realize the purpose of this utility model.

The beneficial effects of the utility model are: not only reasonable in design, and compact conformation, simple and practical, can improve the accuracy and the levels of precision of testing result, be convenient to on-the-spot the detection again and use, and have simple operation, increase work efficiency, save and detect cost and use characteristics such as very convenient.

Description of drawings

The utility model has a width of cloth accompanying drawing.Wherein:

Accompanying drawing 1 is that the axle of the utility model specific embodiment is surveyed synoptic diagram.

Among the figure: 1, " ∏ " shape pull bar, 2, the scanning support body, 3, drive link, 4, the left-hand thread screw, 5, spring, 6, probe holder, 7, regulating wheel, 8, the transmission pole socket, 9, the right-hand thread screw.

Embodiment

Shown in Figure 1 is specific embodiment of the utility model, and it is to adopt the diffraction time difference method of Non-Destructive Testing to detect the diffraction time difference method ultrasonic inspecting and scanning frame that the high pressure vessel weld seam is used; It is characterized in that: described scanning support body 2 is before connecting between two straight fine strains of millet, the square frame that rear cross beam is formed, two leg bottoms with " ∏ " shape pull bar 1, be hinged on the middle part of the straight fine strain of millet in scanning support body 2 both sides by the hinge symmetry, middle part symmetry at each crossbeam is installed a pair of center probe apart from regulating device, described this to center probe apart from regulating device by drive link 3, transmission pole socket 8, regulating wheel 7, probe holder 6, left-hand thread screw 4 and right-hand thread screw 9 are formed, on beam sides, connect transmission pole socket 8, activity is packed into by a left side in transmission pole socket 8, the drive link 3 that the right-hand thread section is formed, installing regulating wheel 7 on the bar section of the drive link 3 in transmission pole socket 8, the left-hand thread screw 4 that on the left-hand thread section, is connected with a joggle, right-hand thread screw 9 is connected with a joggle on the right-hand thread section; The outside bottom surface of described left-hand thread screw 4 and right-hand thread screw 9 all is connected the probe holder 6 that probe is housed, be provided with in the surface of contact between left-hand thread screw 4 and right-hand thread screw 9 and beam sides along beam sides slide chute; By rotating the synchronous slip of regulating wheel 7 drive left-hand thread screws 4 and right-hand thread screw 9, realize this adjusting to the center probe distance; Described flexible probe holder 6 is pocketed springs 5 on the spring stack in each left-hand thread screw 4 and right-hand thread screw 9, and spring 5 connects the probe holder 6 that probe is housed.

The equal in length of the left and right thread segment on described each drive link 3.

The above; it only is preferable embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; all are familiar with those skilled in the art in the disclosed technical scope of the utility model, are equal to replace or change according to the technical solution of the utility model and design of the present utility model thereof all should be encompassed within the protection domain of the present utility model.

Claims (3)

1. diffraction time difference method ultrasonic inspecting and scanning frame, comprise scanning support body (2), it is characterized in that: with two leg bottoms of " ∏ " shape pull bar (1), be hinged on the middle part of the straight fine strain of millet in scanning support body (2) both sides by the hinge symmetry, center probe more than the middle part symmetry installing of each crossbeam is a pair of is apart from regulating device, described every pair of center probe apart from regulating device by drive link (3), transmission pole socket (8), regulating wheel (7), probe holder (6), left-hand thread screw (4) and right-hand thread screw (9) are formed, on beam sides, connect transmission pole socket (8), activity is packed into by a left side in transmission pole socket (8), the drive link (3) that the right-hand thread section is formed, install regulating wheel (7) on the bar section of the drive link (3) in transmission pole socket (8), the left-hand thread screw (4) that on the left-hand thread section, is connected with a joggle, right-hand thread screw (9) is connected with a joggle on the right-hand thread section; The lateral surface of described left-hand thread screw (4) and right-hand thread screw (9) is all installed flexible probe holder (6), is provided with the chute that slides along beam sides in the surface of contact between left-hand thread screw (4) and right-hand thread screw (9) and beam sides; By rotating the synchronous slip of regulating wheel (7) drive left-hand thread screw (4) and right-hand thread screw (9), realize the adjusting of every pair of center probe distance.
2. by the described diffraction time difference method ultrasonic inspecting and scanning of claim 1 frame, it is characterized in that: described flexible probe holder (6) is a pocketed springs (5) on the spring stack in each left-hand thread screw (4) and right-hand thread screw (9), and spring (5) connects probe holder (4).
3. by the described diffraction time difference method ultrasonic inspecting and scanning of claim 1 frame, it is characterized in that: the equal in length of the left and right thread segment on described each drive link (3).
CN2010202702913U 2010-07-23 2010-07-23 TOFD ultrasonic detection scanning rack CN201757747U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202702913U CN201757747U (en) 2010-07-23 2010-07-23 TOFD ultrasonic detection scanning rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202702913U CN201757747U (en) 2010-07-23 2010-07-23 TOFD ultrasonic detection scanning rack

Publications (1)

Publication Number Publication Date
CN201757747U true CN201757747U (en) 2011-03-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102384943A (en) * 2011-08-10 2012-03-21 国核电站运行服务技术有限公司 Time-of-flight diffraction ultrasonic scanning bracket
CN104597135A (en) * 2015-01-08 2015-05-06 中国东方电气集团有限公司 TOFD ultrasonic non-destructive testing self-positioning fixture of welded rotor
CN108802202A (en) * 2018-05-29 2018-11-13 共享铸钢有限公司 A kind of ultrasonic wave tandem probe apparatus and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102384943A (en) * 2011-08-10 2012-03-21 国核电站运行服务技术有限公司 Time-of-flight diffraction ultrasonic scanning bracket
CN102384943B (en) * 2011-08-10 2014-04-16 国核电站运行服务技术有限公司 Time-of-flight diffraction ultrasonic scanning bracket
CN104597135A (en) * 2015-01-08 2015-05-06 中国东方电气集团有限公司 TOFD ultrasonic non-destructive testing self-positioning fixture of welded rotor
CN104597135B (en) * 2015-01-08 2017-10-03 中国东方电气集团有限公司 A kind of TOFD Ultrasonic Nondestructive Self-positioning clamps of welded disc turbine rotor
CN108802202A (en) * 2018-05-29 2018-11-13 共享铸钢有限公司 A kind of ultrasonic wave tandem probe apparatus and method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110309

Termination date: 20130723