CN203981635U - Measure the adjustable circular weld joint failure detector of radius - Google Patents

Measure the adjustable circular weld joint failure detector of radius Download PDF

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Publication number
CN203981635U
CN203981635U CN201420402221.7U CN201420402221U CN203981635U CN 203981635 U CN203981635 U CN 203981635U CN 201420402221 U CN201420402221 U CN 201420402221U CN 203981635 U CN203981635 U CN 203981635U
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CN
China
Prior art keywords
housing
mandrel
radius
expansion link
motor
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Expired - Fee Related
Application number
CN201420402221.7U
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Chinese (zh)
Inventor
万海波
李炜
王益土
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Zhejiang University of Water Resources and Electric Power
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Zhejiang University of Water Resources and Electric Power
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Priority to CN201420402221.7U priority Critical patent/CN203981635U/en
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Abstract

The utility model discloses the adjustable circular weld joint failure detector of measurement radius that a kind of circular weld joint for different-diameter carries out defects detection.It comprises ultrasonic probe, circular tracking mechanism and radius governor motion; housing that its circular tracking mechanism comprises magnetic mandrel, be connected with mandrel rotary moveable, be sheathed on mandrel upper end and the lid that is connected with mandrel rotary moveable and the driving mechanism around mandrel rotation for drive shell and lid; radius governor motion comprises the expansion link that is provided with tooth bar; expansion link is movably set on housing; also comprise that ultrasonic probe is fixedly arranged on the free end of expansion link for driving expansion link along the flexible driven wheel of length of telescopic bar direction.The utility model seam inspection device has circular tracking mechanism and radius governor motion; it shares a drive motor; switching mechanism can switch easily between circular tracking mechanism and radius governor motion; when saving the energy; easy to use; applied widely, detection accuracy and convenience are all better.

Description

Measure the adjustable circular weld joint failure detector of radius
Technical field
The utility model relates to weld seam nondestructive examination field, is specifically related to a kind of circular weld joint for different-diameter and carries out the seam inspection device of defects detection.
Background technology
Welding is by the connection edge of two blocks of metal materials of high temperature melt, makes two blocks of metal materials be fixed to one another a kind of metal linking into an integrated entity and is fixedly connected with technique.Due to the impact of various factors in welding process, the weld defects such as commissure tends to occur crackle, incomplete tusion, pore, undercut, be mingled with, welding quality not only affects usability and the life-span of welding product, the more important thing is the impact person and great property safety.Therefore, in the process of welding, must be according to relevant specification, butt welded seam carries out the ultrasonic or ray detection of some, with products quality guarantee.Especially the welding of the metal construction such as pressure vessel, closed conduit series products, the path of welding of this series products is circle or straight line mostly, after its welding, all needs to carry out defect inspection.
Ultrasound examination is the Non-Destructive Testing new method that developed recently gets up, its single pass can be measured and in whole thickness range, comprise inner and surperficial all defect, and can realize defect location and size measurement simultaneously, be widely used as pipeline, rail etc. in the defeated structure of a lot of large-scale length.But convenience, accuracy and the efficiency of existing hand-hold ultrasonic detector in detection process does not all reach user demand, therefore, be necessary to design one more efficiently, seam inspection equipment easily.
Summary of the invention
The technical problems to be solved in the utility model is to solve all poor defects of convenience, accuracy and the efficiency of hand-hold ultrasonic detector in detection process in prior art.
In order to solve the problems of the technologies described above, the technical scheme that the utility model provides is as follows: a kind of adjustable circular weld joint failure detector of radius of measuring, comprise ultrasonic probe, circular tracking mechanism and radius governor motion, described circular tracking mechanism comprises magnetic mandrel, the housing being connected with described mandrel rotary moveable, the lid that is sheathed on described mandrel upper end and connect relative to mandrel rotary moveable and the driving mechanism for driving described housing and lid to rotate around mandrel, the lower end of described mandrel protrudes from the lower surface of housing through the bottom of described housing and the lower surface of described mandrel, described driving mechanism comprises motor, driving gear, follower gear and the friction pulley of being located at described lid top, described driving gear is fixedly arranged on motor output shaft, described follower gear is coaxial and be connected on described housing by rotating shaft with friction pulley, and the periphery of described friction pulley is through the bottom of described housing and protrude from the height of housing lower surface and height that mandrel protrudes from housing lower surface adapts, described radius governor motion comprises that one end is provided with the expansion link of tooth bar, described expansion link is movably set on described housing, also comprise with described tooth bar cooperation and for driving the relative housing of described expansion link along the flexible driven wheel of length of telescopic bar direction, described driven wheel is connected with drive unit, and described ultrasonic probe is fixedly arranged on the free end of described expansion link.
Further, described drive unit comprises and the coaxial worm screw being connected of described driven wheel and the worm gear that coordinates with described worm screw, described worm gear and described driving gear are coaxially connected on motor output shaft, and described motor is connected in described lid top by support spring; Also comprise the switching mechanism engaging with follower gear with worm mesh and driving gear for switching worm gear.
Further, described switching mechanism comprises the herringbone button that relative motor is fixedly installed, described herringbone button comprises press section, a pair of support portion that is also arranged at respectively symmetrically motor both sides, described lid top is provided with the supporting part for holding support portion, described supporting part comprises fixing side and elastic sides, between described support portion and elastic sides, be provided with mutual fastening buckling parts, the bottom of described supporting part is provided with resilient mounting.
Further, described buckling parts comprises the depression being arranged on support portion and is arranged at the projection in elastic sides.
Further, described buckling parts comprises the projection being arranged on support portion and is arranged at the depression in elastic sides.
Further, described resilient mounting is Compress Spring.
Further, between described elastic sides and lid, be also provided with Compress Spring.
Further, also comprise the upper cover that is placed on housing top, cover on described and be provided with through hole, the start stop switch of controlling motor start and stop that holds herringbone button press portion and pass through and the gauge tap of controlling motor positive and inverse.
The present embodiment is measured the adjustable circular weld joint failure detector of radius; it has circular tracking mechanism and radius governor motion; and its circular tracking mechanism and radius governor motion share a drive motor; its switching mechanism can switch easily between circular tracking mechanism and radius governor motion; when saving the energy; easy to use, applied widely, detection accuracy and convenience are all better.
Brief description of the drawings
Fig. 1 is the exploded perspective view of the present embodiment seam inspection device;
Fig. 2 is the structural representation of the present embodiment seam inspection device;
Fig. 3 is motor scheme of installation in the present embodiment;
Fig. 4 is the local enlarged diagram of A portion shown in Fig. 3;
Fig. 5 is the structural representation of the present embodiment middle gear, tooth bar engagement and worm gear, worm mesh;
Description of reference numerals: 1-ultrasonic probe, 2-expansion link, 3-tooth bar, 31-driven wheel, 32-worm screw, 33-worm gear, 34-driving gear, 35-follower gear, 36-friction pulley, 4-herringbone button, 41-press section, 42-support portion, 5-motor, 6-mandrel, 7-housing, 8-upper cover, 81-through hole, 82-start stop switch, 83-gauge tap, 9-lid, 10-support spring, 11-supporting part, 111-fixes side, 112-elastic sides, 12-resilient mounting.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the adjustable circular weld joint failure detector of the measurement radius of the present embodiment is described in further detail.
A kind of adjustable circular weld joint failure detector of radius of measuring of the present embodiment, as shown in Figure 1 and Figure 2, it comprises ultrasonic probe 1, circular tracking mechanism and radius governor motion.Wherein circular tracking mechanism comprises magnetic mandrel 6, housing 7 and lid 9, and its middle shell 7 coaxially arranges with mandrel 6, and housing 7 can mandrel 6 be axle center rotation.Wherein mandrel 6 is multidiameter, and outwards give prominence to through the bottom of housing 7 and by the lower surface of its bottom the lower end that its diameter is less.Its lid 9 is sheathed on the upper end of mandrel 6 and can mandrel 6 is rotating shaft rotation.
In the present embodiment, above lid 9, be provided with motor 5, as shown in Figure 5, on the output shaft of its motor 5, be fixed with worm gear 33 and driving gear 34.Also comprise the worm screw 32 being used in conjunction with worm gear 33 and the follower gear 35 coordinating with driving gear 34.
In the present embodiment, its radius governor motion comprises that one end is provided with the expansion link 2 of tooth bar 3, and wherein expansion link 2 is movably set on housing 7.Also comprise coordinating with tooth bar 3 and for driving the relative housing 7 of expansion link 2 along the flexible driven wheel 31 of expansion link 2 length directions, its driven wheel 31 coaxially arranges with above-mentioned worm screw 32.Be fixedly arranged on the free end of expansion link 2 as 1 of the ultrasonic probe of flaw detection main body.
For drive shell 7 and lid 9 rotate, its follower gear 35 is connected on housing 7 by rotating shaft 37, also comprises the friction pulley 36 with the coaxial setting of follower gear 35.The periphery of its friction pulley 36 is through the bottom of described housing 7 and protrude from the height of housing 7 lower surfaces and height that mandrel 6 protrudes from housing 7 lower surfaces adapts.
In the present embodiment, use same motor 5 to drive and running alternately in order to realize radius governor motion and circular tracking mechanism, also comprise for switching the switching mechanism that worm gear 33 engages with worm screw 32 and driving gear 34 engages with follower gear 35.Based on the demand that switching mechanism is set, as shown in Figure 2 and Figure 3, its motor 5 is connected in lid 9 tops by support spring 10.On its motor 5, be fixedly installed and be useful on the herringbone button 4 of pressing motor 5, its herringbone button 4 comprises press section 41, a pair of support portion 42 that is also arranged at respectively symmetrically motor 5 both sides, is provided with the supporting part 11 for holding support portion 42 on its lid 9 tops.As shown in Figure 4, its supporting part 11 comprises fixing side 111 and elastic sides 112, is provided with mutual fastening buckling parts between its support portion 42 and elastic sides 112, is also provided with resilient mounting 12 in the bottom of its supporting part 11, as preferably, its resilient mounting 12 adopts Compress Spring.
Above-mentioned buckling parts can be for being arranged at the depression on support portion 42 and being arranged at projection with matching in elastic sides 112, can be also arranged at the projection on support portion 42 and be arranged at depression with matching in elastic sides 112.As preferably, in the present embodiment, adopt on support portion 42 and arrange in depression, elastic sides 112 protruding mode is set.
The seam inspection device of the present embodiment also comprises the upper cover 8 that is placed on housing 9 tops, and its upper cover 8 is provided with through hole 81, the start stop switch 82 of controlling motor 5 start and stop that holds herringbone button 4 press sections 41 and pass through and the gauge tap 83 of controlling motor 5 rotatings.
It is as follows that the present embodiment is measured the adjustable circular weld joint failure detector principle of work of radius: first magnetic rotating shaft 6 is adsorbed on ferrous materials, for strengthening the stability of fault indicator.In the time that herringbone button 4 is not pressed in highest point, its worm gear 33 engages with worm screw 32, correspondingly driving gear 34 separates with follower gear 35, now control motor start and stop and rotating by start stop switch 82 and gauge tap 83, realize the flexible of expansion link 2, regulate the radius of investigation of ultrasonic probe 1.
After the radius of investigation of ultrasonic probe 1 regulates, press the press section 41 of herringbone button 4, the buckling parts between its support portion 42 and elastic sides 112 fastens mutually, and now, its worm gear 33 separates with worm screw 32, and driving gear 34 engages with follower gear 35.In the situation of starter motor 5, its friction pulley 36 is synchronizeed rotation with follower gear 35, and with testee mantle friction, drive shell 7 and lid 9 rotate around mandrel 6.Need to switch to linear tracing by circular tracking time; continue to press press section 41; its support portion 42 is depressed into the bottom of supporting part 11; by resilient mounting 12 by its by supporting part 11 eject, so can complete easily the switching between radius governor motion and circular tracking mechanism by the press section 41 of pressing herringbone button 4.
In a word; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (8)

1. measure the adjustable circular weld joint failure detector of radius for one kind, it is characterized in that, comprise ultrasonic probe, circular tracking mechanism and radius governor motion, housing that described circular tracking mechanism comprises magnetic mandrel, connect with described mandrel rotary moveable, be sheathed on described mandrel upper end and lid that relatively mandrel rotary moveable connects and the driving mechanism for driving described housing and lid to rotate around mandrel, the bottom of described housing and the lower surface of described mandrel are passed and protrude from the lower surface of housing in the lower end of described mandrel;
Described driving mechanism comprises motor, driving gear, follower gear and the friction pulley of being located at described lid top, described driving gear is fixedly arranged on motor output shaft, described follower gear is coaxial and be connected on described housing by rotating shaft with friction pulley, and the periphery of described friction pulley is through the bottom of described housing and protrude from the height of housing lower surface and height that mandrel protrudes from housing lower surface adapts;
Described radius governor motion comprises that one end is provided with the expansion link of tooth bar, described expansion link is movably set on described housing, also comprise with described tooth bar cooperation and for driving the relative housing of described expansion link along the flexible driven wheel of length of telescopic bar direction, described driven wheel is connected with drive unit, and described ultrasonic probe is fixedly arranged on the free end of described expansion link.
2. according to seam inspection device claimed in claim 1, it is characterized in that, described drive unit comprises and the coaxial worm screw being connected of described driven wheel and the worm gear that coordinates with described worm screw, described worm gear and described driving gear are coaxially connected on motor output shaft, and described motor is connected in described lid top by support spring; Also comprise the switching mechanism engaging with follower gear with worm mesh and driving gear for switching worm gear.
3. according to seam inspection device claimed in claim 2, it is characterized in that, described switching mechanism comprises the herringbone button that relative motor is fixedly installed, described herringbone button comprises press section, a pair of support portion that is also arranged at respectively symmetrically motor both sides, described lid top is provided with the supporting part for holding support portion, described supporting part comprises fixing side and elastic sides, between described support portion and elastic sides, be provided with mutual fastening buckling parts, the bottom of described supporting part is provided with resilient mounting.
4. according to seam inspection device claimed in claim 3, it is characterized in that, described buckling parts comprises the depression being arranged on support portion and is arranged at the projection in elastic sides.
5. according to seam inspection device claimed in claim 3, it is characterized in that, described buckling parts comprises the projection being arranged on support portion and is arranged at the depression in elastic sides.
6. according to the seam inspection device described in claim 3-5 any one, it is characterized in that, described resilient mounting is Compress Spring.
7. according to seam inspection device claimed in claim 6, it is characterized in that, between described elastic sides and lid, be also provided with Compress Spring.
8. according to the seam inspection device described in claim 3 or 4 or 5 or 7, it is characterized in that, also comprise the upper cover that is placed on housing top, cover on described and be provided with through hole, the start stop switch of controlling motor start and stop that holds herringbone button press portion and pass through and the gauge tap of controlling motor positive and inverse.
CN201420402221.7U 2014-07-21 2014-07-21 Measure the adjustable circular weld joint failure detector of radius Expired - Fee Related CN203981635U (en)

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Application Number Priority Date Filing Date Title
CN201420402221.7U CN203981635U (en) 2014-07-21 2014-07-21 Measure the adjustable circular weld joint failure detector of radius

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104165928A (en) * 2014-07-21 2014-11-26 浙江水利水电学院 Weld flaw detector based on linear and circular tracking mode
CN111812128A (en) * 2020-07-18 2020-10-23 王震 Pipeline radiation-proof flaw detection device with adaptive pipe diameter adjustment function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104165928A (en) * 2014-07-21 2014-11-26 浙江水利水电学院 Weld flaw detector based on linear and circular tracking mode
CN104165928B (en) * 2014-07-21 2016-06-29 浙江水利水电学院 A kind of seam inspection device based on straight line and circular tracking mode
CN111812128A (en) * 2020-07-18 2020-10-23 王震 Pipeline radiation-proof flaw detection device with adaptive pipe diameter adjustment function

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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: 20141203

Termination date: 20160721

CF01 Termination of patent right due to non-payment of annual fee