CN111693613A - Probe wheel static test adjusting device and test method - Google Patents
Probe wheel static test adjusting device and test method Download PDFInfo
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- CN111693613A CN111693613A CN202010752359.XA CN202010752359A CN111693613A CN 111693613 A CN111693613 A CN 111693613A CN 202010752359 A CN202010752359 A CN 202010752359A CN 111693613 A CN111693613 A CN 111693613A
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- 230000003068 static effect Effects 0.000 title claims abstract description 46
- 238000010998 test method Methods 0.000 title claims abstract description 7
- 238000013519 translation Methods 0.000 claims abstract description 139
- 239000007788 liquid Substances 0.000 claims description 46
- 230000007246 mechanism Effects 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 36
- 230000008878 coupling Effects 0.000 claims description 30
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- 230000035945 sensitivity Effects 0.000 description 3
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- 239000007921 spray Substances 0.000 description 2
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- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
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Abstract
The invention relates to a probe wheel static test adjusting device and a test method, which are used for the calibration of a probe wheel before a static index test and the test of a plurality of static indexes: when the probe wheel is calibrated, the translation positioning piece and the translation positioning hole are correspondingly locked, so that a symmetrical shaft of the probe wheel fixing support is overlapped with a centering line of the test track, and then the probe wheel fixing support is adjusted through the probe wheel adjusting device according to the echo condition of each probe, so that the inclination state of the probe wheel on a horizontal height is adjusted until the echo condition of each probe meets the test requirement; after the calibration work of the probe wheel is completed, various data are tested on each probe through various operations of translation and rotation according to test requirements. The operation of whole calibration work and testing process is very simple convenient, can test each item static index of spy wheel fast, accurately, comprehensively, improves efficiency of software testing, accuracy and the uniformity of spy wheel static index test.
Description
Technical Field
The invention relates to the technical field of ultrasonic flaw detection, in particular to a probe wheel static test adjusting device and a test method.
Background
The ultrasonic detection wheel is used as a detection part of a steel rail flaw detection vehicle, mainly used for detecting specified artificial flaws on a steel rail, and is also used for dynamic index testing of the detection wheel. The static indexes of the probe wheel comprehensively and accurately reflect the performance characteristics of the probe wheel, specifically including center frequency, sensitivity margin, sound beam width, refraction angle, resolution, distance amplitude curve, signal-to-noise ratio, wheel skin attenuation and the like, so the accuracy of the test of the static indexes of the probe wheel is very important.
The probe wheel is usually provided with a plurality of probes, each probe has a series of performance indexes, the test workload of the probe is extremely large, and particularly when a plurality of test blocks are adopted for testing the static indexes of the probe wheel, the test blocks are replaced or turned over at every time, the levelness of the probe wheel between two adjacent tests is inconsistent, the consistency of the whole test process is influenced, and the accuracy of the whole test result is reduced. In order to reflect the performance of each probe comprehensively and accurately, it is of great significance to develop a set of quick, convenient and accurate adjusting device for static test.
Disclosure of Invention
The invention aims to provide a probe wheel static test adjusting device which is used for calibrating a probe wheel before a static index test and testing a plurality of static indexes, is very simple and convenient to operate, can test each static index of the probe wheel quickly, accurately and comprehensively, and improves the test efficiency, accuracy and consistency of the probe wheel static index test. The technical scheme is as follows:
the utility model provides a visit static test adjusting device of wheel which characterized in that: the device comprises a rack, a left-right translation guide rail, a left-right translation seat, a front-back translation guide rail, a front-back translation seat, a rotary guide rail, a rotary seat, a test block mechanism, a probe wheel fixing support and a probe wheel adjusting device; the left and right translation guide rails are arranged on the rack along the left and right direction, the left and right translation seats are arranged on the left and right translation guide rails and can move along the left and right translation guide rails, the front and back translation guide rails are arranged on the left and right translation seats along the front and back direction, the front and back translation seats are arranged on the front and back translation guide rails and can move along the front and back translation guide rails, the rotating guide rails are arranged on the front and back translation seats, the rotating seats are arranged on the rotating guide rails and can move along the rotating guide rails, and the probe wheel fixing supports are arranged on the rotating seats; the test block mechanism comprises a calibration test block, at least one test track and at least one test block, wherein each test track is arranged on the rack in parallel and is positioned below the probe wheel fixing support, the length direction of each test track is consistent with the length direction of the front and back translation guide rails, the calibration test block and the test block are detachably mounted on the corresponding test tracks, and the alignment lines which are overlapped are arranged on each test track and the corresponding calibration test block or test block along the length direction of the calibration test block or test block; the rotary seat and the detection wheel fixing support are of an axisymmetric structure in the left-right direction, the symmetric axis of the rotary seat is overlapped with the symmetric axis of the detection wheel fixing support, the rotary seat can rotate around the center point of the rotary guide rail along the rotary guide rail, a plurality of rotary positioning holes are formed in the front translation seat and the rear translation seat along the extending direction of the rotary guide rail, and rotary positioning pieces capable of being matched and locked with the rotary positioning holes are arranged on the rotary seat; at least one translation positioning hole is formed in the rack along the extending direction of the left translation guide rail and the right translation guide rail and is positioned on the corresponding centering line of the test track; the left translation seat and the right translation seat are provided with translation positioning parts which can be matched and locked with the translation positioning holes, and the translation positioning parts are positioned on the symmetry axis of the probe wheel fixing support.
The probe wheel has nine single probes, including a 0 straight probe, two 37 oblique probes and six 70 oblique probes, wherein, 0 straight probe sets up in the middle, and two 37 oblique probes symmetry sets up the front and back both sides at 0 straight probe, and six 70 oblique probes set up respectively in the left front side, right front side, left rear side, right rear side of 0 straight probe, and the front side of preceding 37 oblique probes and the rear side of back 37 oblique probes.
The calibration test block and each test block can be detachably mounted on the corresponding test track in a plugging and locking mode and the like, the upper surface of each test block is level with the corresponding test track, and each test block is used as one part of the corresponding test track, so that the probe wheel can move to the corresponding test block along the test track. The test block can be set and changed according to the index test requirement of the probe wheel, one or more test blocks can be installed on one test guide rail, and even the calibration test block and the test block can be installed on the same test track. The calibration test block is used for adjusting and calibrating the levelness of the probe wheel, the test block is used for testing various static indexes of the probe wheel, and the calibration test block and the test block can select appropriate corresponding test blocks (such as the existing national standard test block or the test block designed by a tester) according to actual test requirements.
The detection wheel fixing support is used for installing the detection wheel, the detection wheel is vertically arranged during installation, two wheel side faces of the detection wheel are respectively installed on the detection wheel fixing support through wheel shafts, and the axle wire of each detection wheel is coincided with the symmetry axis of the detection wheel fixing support. The probing wheel fixing support can be horizontally moved left and right along the left and right horizontal moving guide rails through the left and right horizontal moving seats, and can be horizontally moved front and back along the front and back horizontal moving guide rails through the front and back horizontal moving seats, so that the probing wheel fixing support is moved to the position above a corresponding test block.
The probe wheel adjusting device is used for adjusting the inclination of the probe wheel fixing bracket on a horizontal height, so that the probe wheel fixing bracket can be inclined on a single side or inclined on a single side on the horizontal height. The single-side inclination means that the probe wheel fixing bracket tilts forwards or backwards under the condition of keeping axial symmetry in the left-right direction, and the single-side inclination means that the probe wheel fixing bracket can tilt towards the left side or the right side in a small range.
The probe wheel needs to be calibrated before performing a probe wheel static test. The detection wheel is fixedly arranged on a detection wheel fixing support, two wheel side surfaces of the detection wheel are respectively arranged on the detection wheel fixing support through wheel shafts, and the central axis of the wheel shaft of the detection wheel is superposed with the symmetrical axis of the detection wheel fixing support; and then moving the left and right translation seats, moving the test track where the calibration test block is located, enabling the corresponding translation positioning piece to correspond to the translation positioning hole, and enabling the translation positioning piece to be matched and locked with the translation positioning hole. After the probe wheel moves to the calibration test block, the probe wheel is connected to a corresponding test instrument, echo signals of each probe of the probe wheel are observed, and then the probe wheel fixing support is adjusted through the probe wheel adjusting device according to the echo condition of each probe, so that the inclination state of the probe wheel on a horizontal height is adjusted until the echo condition of each probe meets the test requirement, and the probe wheel is considered to complete calibration work. At the moment, the levelness of the probe wheel fixing support is consistent with that of each test track, the height of the 0-degree probe is kept at a set value with each test track, the wheel skin has enough contact area with the rail surface of each test track, and the incident angles of the probes symmetrically arranged such as the 37-degree probe and the 70-degree probe are in the optimal state.
After the calibration work of the probe wheel is finished, according to the test requirements, the data of sensitivity allowance, sound beam width, refraction angle, distance amplitude curve, center frequency, resolution, signal-to-noise ratio and the like are respectively tested for each probe through various operations of translation and rotation. The method specifically comprises the following steps:
(1) switching of different test tracks is realized through left-right translation so as to select a required test block;
(2) switching of different test blocks installed on the same test track is realized through forward and backward translation so as to select the required test block;
(3) by rotating the rotary seat, the probe wheel rotates by a certain angle in the horizontal direction according to the circumference, the center of the oblique 70-degree probe of the oblique pendulum is adjusted to be on the central line of the test block, and the performance test of the oblique 70-degree probe is realized.
The left and right translation seats and the front and back translation seats can be manually pushed, and can also be driven by a proper driving device (such as a synchronous belt pulley and the like).
The translation positioning piece can adopt any existing workpiece which can be matched and locked with the translation positioning hole, such as a bolt, a pin shaft, a matched screw nut and the like. The rotating positioning part can adopt the existing workpiece which can be matched and locked with the rotating positioning hole at will. In addition, for the convenience of test recording, the outside of the rotating guide rail is provided with a scale for indicating the rotating angle.
In order to improve the stability of translation, the front and back translation guide rail and the left and right translation guide rail can be respectively provided with two linear guide rails.
In addition, in order to facilitate calibration work and probe wheel test work, a ruler can be further arranged along the front and back translation guide rail, and distance quantitative test is facilitated.
As a preferred scheme of the invention, the probe wheel adjusting device comprises a probe wheel adjusting bracket and three screw adjusting mechanisms, the probe wheel adjusting bracket is mounted on the rotating seat, the three screw adjusting mechanisms are mounted on the probe wheel adjusting bracket, one of the screw adjusting mechanisms is arranged on the front side of the probe wheel fixing bracket, and the other two screw adjusting mechanisms are respectively symmetrically arranged on the left side and the right side of the rear side of the probe wheel fixing bracket. The screw rod adjusting mechanisms on the front side are used for finely adjusting the height of the front side of the probe wheel fixing support, and the two screw rod adjusting mechanisms on the rear side can simultaneously finely adjust the height of the rear side of the probe wheel fixing support, so that the unilateral inclination adjustment of the probe wheel fixing support is realized. Meanwhile, one of the screw rod adjusting mechanisms on the rear side is independently adjusted, so that the inclination of the probe wheel fixing support to the side can be adjusted, and the unilateral inclination adjustment of the probe wheel fixing support is realized.
As a further preferable scheme of the present invention, the screw adjusting mechanism includes an adjusting screw, an adjusting support and an adjusting connecting block, the adjusting connecting block is fixedly mounted on the probe wheel adjusting support, the adjusting support is mounted at a corresponding position on the probe wheel fixing support, a vertical first screw hole is provided on the adjusting connecting block, the adjusting screw is in threaded connection with the corresponding first screw hole, and the lower end of the adjusting screw is rotatably connected with the adjusting support.
As a further preferable scheme of the present invention, the rotary base is further provided with a support fine adjustment mechanism, and the support fine adjustment mechanism includes a fine adjustment screw, a fine adjustment connection block, a fine adjustment guide block, a first fine adjustment guide rail and a second fine adjustment guide rail; the first fine tuning guide rail and the second fine tuning guide rail are arranged on the rotating seat along the left-right direction, and the fine tuning connecting block is arranged on the rotating seat; the fine setting connecting block is provided with a second screw hole, the thread section of the fine setting screw rod is in threaded connection with the second screw hole, the fine setting guide block is installed on the second fine setting guide rail and can move along the second fine setting guide rail, the tail end section of the fine setting screw rod is in rotatable connection with the fine setting guide block through a bearing, the detection wheel adjusting support is installed on the first fine setting guide rail and can move along the first fine setting guide rail and move left and right, and the detection wheel adjusting support is connected with the fine setting guide block. Before the translation work of the whole detection wheel fixing support is carried out, fine adjustment can be carried out on the adjusting support through the support fine adjustment mechanism, the fine adjustment screw rod is rotated, the adjusting support is moved in a small range under the guide of the fine adjustment guide block, the first fine adjustment guide rail and the second fine adjustment guide rail, and the translation positioning piece is aligned with the symmetrical axis of the detection wheel fixing support. Of course, when the probe wheel is calibrated, the probe wheel fixing support can be finely adjusted according to the echo condition of the probe.
In a preferred embodiment of the present invention, the front end of the test rail is provided with a slope extending downward from the back to the front. Because the probe wheel needs to move to the test track through translation, the wheel face of the probe wheel has sliding friction with the rail face of the test track in the process of translating to the test track, the translation resistance is large, and the translation of the probe wheel fixing support is influenced, therefore, the front end of the test track inclines downwards, when the probe wheel fixing support moves to the test track, the probe wheel is positioned above the test track and the wheel face of the probe wheel is not in contact with the rail face of the test track, when the probe wheel fixing support translates from front to back, the probe wheel gradually contacts with the inclined plane at the front end of the test track along with the movement, and the rail face of the test track is attached to the test track and moves backwards.
As a preferred scheme of the present invention, the probe wheel calibration apparatus further includes a coupling liquid circulation mechanism, the coupling liquid circulation mechanism includes a coupling liquid pool, a submersible pump and a liquid transport tube, the coupling liquid pool is disposed on the rack and below the test block, the submersible pump is disposed in the coupling liquid pool, a liquid inlet of the liquid transport tube is connected to the submersible pump, and a liquid outlet of the liquid transport tube is disposed on the probe wheel fixing bracket. Because coupling liquid needs to be used in the detection wheel test, a coupling liquid circulating mechanism is arranged, the coupling liquid is pumped to the detection wheel fixing support through a submersible pump and a liquid conveying pipe to spray the detection wheel, and the coupling liquid automatically drips back to a coupling liquid pool from the detection wheel. On one hand, the use cost can be reduced, the utilization rate of the coupling liquid is improved, and on the other hand, the test block does not need to be soaked in the coupling liquid for a long time, so that the service life of the test block is prolonged. Further to save costs, water may be used as the coupling liquid.
The invention also provides a method for carrying out static numerical value test on the probe wheel by using the probe wheel static test adjusting device, which adopts the following technical scheme:
a probe wheel static test method is characterized by comprising the following steps:
(1) and (3) calibrating a probe wheel:
(1-1) adjusting the probe wheel fixing support to enable positioning pieces on the left translation seat and the right translation seat to be positioned on an extension line of a symmetrical shaft of the probe wheel fixing support;
(1-2) mounting the probe wheel on a probe wheel fixing support, so that the axle wire of the axle of the probe wheel is superposed with the symmetry axis of the probe wheel fixing support;
(1-3) moving the left and right translation seats to enable the symmetry axis of the probe wheel fixing support to be overlapped with the centering line of the test track where the calibration module is located;
(1-4) moving the front and back translation seat to enable the probe wheel to move to the calibration module along the test track;
(1-5) connecting the probe wheel to a corresponding detector instrument, and reading the echo condition of each probe;
(1-6) adjusting the inclination of the probe wheel fixing support in real time according to the real-time echo condition of each probe, so as to adjust the echo of each probe;
(1-7) according to the real-time echo condition of each probe, moving the position of the probe wheel back and forth along the test track in real time, and adjusting the position of the probe wheel on the calibration module so as to adjust the echo of each probe;
(1-8) repeating the steps (1-6) and (1-7) until the echo condition of each probe meets the calibration requirement;
(2) testing the static indexes of the probe wheel:
(2-1) moving the left-right translation seat to a test track where a test block to be tested is located;
(2-2) moving the front and back translation seat to enable the probe wheel to move to a required test block along the test track;
(2-3) adjusting the inclination of the probe wheel fixing support, the front and back relative positions of the probe wheel on the test block or the rotation angle of the probe wheel in the horizontal plane in real time according to the test requirements of each probe, and adjusting the echo of each probe to obtain corresponding test data;
and (2-4) repeating the steps (2-1) to (2-3) and testing different static indexes.
Compared with the prior art, the invention has the following advantages:
the invention relates to a probe wheel static test adjusting device and a test method, which are used for the calibration of a probe wheel before a static index test and the test of a plurality of static indexes: when the probe wheel is calibrated, the translation positioning piece and the translation positioning hole are correspondingly locked, so that a symmetrical shaft of the probe wheel fixing support is overlapped with a centering line of the test track, and then the probe wheel fixing support is adjusted through the probe wheel adjusting device according to the echo condition of each probe, so that the inclination state of the probe wheel on a horizontal height is adjusted until the echo condition of each probe meets the test requirement; after the calibration work of the probe wheel is finished, according to the test requirements, the data of sensitivity allowance, sound beam width, refraction angle, distance amplitude curve, center frequency, resolution, signal-to-noise ratio and the like are respectively tested for each probe through various operations of translation and rotation. The operation of whole calibration work and testing process is very simple convenient, can test each item static index of spy wheel fast, accurately, comprehensively, improves efficiency of software testing, accuracy and the uniformity of spy wheel static index test.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;
FIG. 2 is an exploded schematic view of FIG. 1;
FIG. 3 is an enlarged schematic view of the swivel mount, probe wheel securing bracket, probe wheel adjustment assembly, and bracket fine adjustment mechanism of FIG. 1;
wherein, each is marked as: 1-a rack, 2-a left-right translation guide rail, 3-a left-right translation seat, 301-a translation positioning hole, 302-a translation positioning piece, 4-a front-back translation guide rail, 5-a front-back translation seat, 6-a rotation guide rail, 7-a rotation seat, 701-a rotation positioning hole, 702-a rotation positioning piece, 8-a test block mechanism, 801-a calibration test block, 802-a test track, 803-a test block, 804-a slope, 9-a probe wheel fixing bracket, 10-a probe wheel adjusting device, 101-a probe wheel adjusting bracket, 102-a screw rod adjusting mechanism, 1021-an adjusting screw rod, 1022-an adjusting support, 1023-an adjusting connecting block, 11-a bracket fine adjusting mechanism, 111-a fine adjusting screw rod, 112-a fine adjusting connecting block, 113-a fine adjusting guide block, 114-a first fine-tuning guide rail, 115-a second fine-tuning guide rail, 12-a coupling liquid circulating mechanism, 121-a coupling liquid pool, 122-an infusion tube and 13-a probe wheel.
Detailed Description
The following further describes the preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and 2, a probe wheel static test adjusting device comprises a rack 1, a left-right translation guide rail 2, a left-right translation seat 3, a front-back translation guide rail 4, a front-back translation seat 5, a rotary guide rail 6, a rotary seat 7, a test block mechanism 8, a probe wheel fixing support 9, a probe wheel adjusting device 10, a support fine adjustment mechanism 11 and a coupling liquid circulating mechanism 12; the left and right translation guide rails 2 are arranged on the frame 1 along the left and right direction, the left and right translation seats 3 are arranged on the left and right translation guide rails 2 and can move along the left and right translation guide rails 2, the front and back translation guide rails 4 are arranged on the left and right translation seats 3 along the front and back direction, and the front and back translation seats 5 are arranged on the front and back translation guide rails 4 and can move along the front and back translation guide rails 4; in order to improve the stability of translation, two front and rear translation guide rails 4 and two left and right translation guide rails 2 are arranged in the embodiment, and both adopt linear guide rails; in the embodiment, the left and right translation seats 3 and the front and rear translation seats 5 are both manually pushed; in order to facilitate calibration work and probe wheel test work, a ruler can be arranged along the front and rear translation guide rails 4, so that distance quantitative test is facilitated; rotating guide 6 sets up on front and back translation seat 5, roating seat 7 is installed on rotating guide 6 and can be followed rotating guide 6 and removed, roating seat 7 is the ascending axial symmetry structure of left and right sides, roating seat 7 can be followed rotating guide 6 and rotated around its central point, along rotating guide 6's extending direction scale on the front and back translation seat 5, and with the required scale corresponding a plurality of rotatory locating hole 701 that are equipped with of test, be equipped with on the roating seat 7 can all cooperate the rotational positioning spare 702 of locking with each rotatory locating hole 701, the rotational positioning spare 702 adopts the bolt in this embodiment, it can to insert corresponding rotatory locating hole 701 and lock with the bolt when rotatory to the corresponding rotatory locating hole 701 of the required scale of test.
As shown in fig. 1 to 3, the support fine adjustment mechanism 11 includes a fine adjustment screw 111, a fine adjustment connection block 112, a fine adjustment guide block 113, a first fine adjustment guide rail 114, and a second fine adjustment guide rail 115, and the probe wheel adjustment device 10 includes a probe wheel adjustment support 101 and three screw adjustment mechanisms 102; the first fine adjustment guide rail 114 and the second fine adjustment guide rail 115 are arranged on the rotating base 7 along the left-right direction, the fine adjustment connecting block 112 is arranged on the rotating base 7, a second screw hole (not marked in the figure) is arranged on the fine adjustment connecting block 112, the thread section of the fine adjustment screw 111 is in threaded connection with the second screw hole, the fine adjustment guide block 113 is arranged on the second fine adjustment guide rail 115 and can move along the second fine adjustment guide rail 115, and the tail end section of the fine adjustment screw 111 is rotatably connected with the fine adjustment guide block 113 through a bearing (not marked in the figure); the probe wheel adjusting bracket 101 is arranged on the first fine adjustment guide rail 114 and can move left and right along the first fine adjustment guide rail 114, and the probe wheel adjusting bracket 101 is connected with the fine adjustment guide block 113; visit wheel fixed bolster 9 and install on visiting wheel regulation support 101 through three screw rod adjustment mechanism 102, visit wheel fixed bolster 9 is the epaxial symmetrical structure in the left and right sides direction, screw rod adjustment mechanism 102 includes adjusting screw 1021, adjust support 1022 and regulation connecting block 1023, one of them adjusts the support 1022 and sets up the front side at visiting wheel fixed bolster 9, two other adjust the support 1022 respectively the symmetry set up in the left and right sides of visiting wheel fixed bolster 9 rear side, each adjust connecting block 1023 fixed mounting on visiting wheel regulation support 101 and relative from top to bottom with corresponding regulation support 1022, be equipped with vertical first screw (not marking in the figure) on the regulation connecting block 1023, each adjusting screw 1021 and corresponding first screw threaded connection and adjusting screw 1021's lower extreme and corresponding regulation support 1022 rotatable coupling.
As shown in fig. 1 and fig. 2, in this embodiment, the test block mechanism 8 includes a calibration test block 801, four test rails 802, and a plurality of test blocks 803, each test rail 802 is disposed in parallel on the rack 1 and below the probe wheel fixing support 9, the length direction of the test rail 802 is consistent with the length direction of the front-back translation guide rail 4, the calibration test block 801 and the test blocks 803 can be detachably mounted on the corresponding test rails 802 in an insertion and locking manner, the upper surface of each test block is flush with the corresponding test rail 802, each test block is used as a part of the corresponding test rail 802, and each test rail 802 and the corresponding calibration test block 801 or test block 803 are provided with an overlapped alignment line along the length direction thereof; the front end of each test track 802 is provided with an inclined plane 804 extending downwards from back to front; four translation positioning holes 301 are formed in the rack 1 along the extending direction of the left and right translation guide rails 2, each translation positioning hole 301 is located on the centering line of the corresponding test track 802, translation positioning parts 302 capable of being matched and locked with the translation positioning holes 301 are arranged on the left and right translation seats 3, and the translation positioning parts 302 are located on the symmetrical axis of the probe wheel fixing support 9; in this embodiment, the translational positioning element 302 is a pin, and when the translational positioning element is translated to the translational positioning hole 301 corresponding to a certain test track 802, the pin is inserted into the corresponding translational positioning hole 301 and locked.
As shown in fig. 1 and 2, the coupling liquid circulating mechanism 12 includes a coupling liquid tank 121, a submersible pump (not shown in the figures) and a liquid conveying pipe 122, the coupling liquid tank 121 is disposed on the rack 1 and below the test block 803, the submersible pump is disposed in the coupling liquid tank 121, a liquid inlet of the liquid conveying pipe 122 is connected to the submersible pump, a liquid outlet of the liquid conveying pipe 122 is disposed on the probe wheel fixing bracket 9, the coupling liquid is pumped to the probe wheel fixing bracket 9 through the submersible pump and the liquid conveying pipe 122 to spray the probe wheel, and the coupling liquid automatically drops from the probe wheel and returns to the coupling liquid tank 121. In order to save costs, this embodiment uses water as the coupling liquid.
The following describes a method for using the adjustment device for probe wheel static test of the present invention and a process for performing probe wheel calibration and probe wheel static value test by using the adjustment device for probe wheel static test of the present invention with reference to the accompanying drawings and preferred embodiments of the present invention:
(1) and (3) calibrating a probe wheel:
(1-1) inserting a bolt on a rotary base 7 into a rotary positioning hole 701 corresponding to 0-degree scale and locking, then finely adjusting an adjusting bracket through a bracket fine adjustment mechanism 11, rotating a fine adjustment screw 111, and moving the adjusting bracket in a small range under the guidance of a fine adjustment guide block 113, a first fine adjustment guide rail 114 and a second fine adjustment guide rail 115 to enable a symmetrical axis of the rotary base 7 to be overlapped with a symmetrical axis of a probe wheel fixing bracket 9, and aligning a translational positioning piece 302 with the symmetrical axis of the probe wheel fixing bracket 9;
(1-2) mounting the probe wheel 13 on the probe wheel fixing support 9, wherein the probe wheel 13 is vertically arranged during mounting, two wheel side surfaces of the probe wheel 13 are respectively mounted on the probe wheel fixing support 9 through wheel shafts, and the axle wire of the wheel shaft of the probe wheel 13 is superposed with the symmetrical shaft of the probe wheel fixing support 9;
(1-3) moving the left and right translation seats 3 to the test track 802 where the calibration module is located, inserting the inserted pin on the left and right translation seats 3 into the translation positioning hole 301 corresponding to the test track 802 where the calibration module is located and locking the inserted pin, so that the symmetry axis of the probe wheel fixing support 9 is aligned with the alignment line of the test track 802 where the calibration module is located;
(1-4) moving the front and rear translation seat 5, enabling the probe wheel 13 to gradually contact with the inclined plane 804 at the front end of the test track 802 along with the movement of the front and rear translation seat 5, and then moving backwards along the track surface of the test track 802 until the probe wheel moves onto the calibration module along the test track 802;
(1-5) connecting the probe wheel 13 to a corresponding detector instrument, and reading the echo condition of each probe;
(1-6) adjusting the inclination of the probe wheel fixing support 9 in real time according to the real-time echo condition of each probe, so as to adjust the echo of each probe; the adjusting screws 1021 on the front side are used for fine adjustment of the height of the front side of the probe wheel fixing support 9, and the two adjusting screws 1021 on the rear side can simultaneously fine adjust the height of the rear side of the probe wheel fixing support 9, so that single-side inclination adjustment of the probe wheel fixing support 9 is realized; one of the adjusting screw rods 1021 on the rear side is independently adjusted, so that the inclination of the probe wheel fixing support 9 on the side can be adjusted, and the single-side inclination adjustment of the probe wheel fixing support 9 is realized;
(1-7) according to the real-time echo condition of each probe, moving the position of the probe wheel back and forth along the test track 802 in real time, and adjusting the position of the probe wheel 13 on the calibration module so as to adjust the echo of each probe;
(1-8) finely adjusting the probe wheel fixing support 9 according to the real-time echo condition of each probe, rotating the fine adjustment screw 111, and moving the adjusting support in a small range under the guidance of the fine adjustment guide block 113, the first fine adjustment guide rail 114 and the second fine adjustment guide rail 115 so as to adjust the left and right positions of the probe wheel fixing support 9;
(1-9) repeating the steps (1-6) to (1-8) until the echo condition of each probe meets the calibration requirement;
(2) testing the static indexes of the probe wheel:
(2-1) moving the front-back translation seat 5 to the front end of the test track on the test track where the calibration test block 801 is located, so that the probe wheel 13 leaves the rail surface of the test track;
(2-2) unlocking and separating the translation positioning piece 302 from the translation positioning hole corresponding to the test track where the calibration test block 801 is located, moving the left and right translation seat 3 to the test track where the test block 803 to be tested is located, and locking the translation positioning piece 302 with the other translation positioning hole corresponding to the test track where the test block 803 to be tested is located;
(2-3) moving the front and rear translation seat 5, enabling the probe wheel 13 to gradually contact with the inclined plane 804 at the front end of the test track along with the movement of the front and rear translation seat 5, and then moving backwards by being attached to the rail surface of the test track until the probe wheel moves to a test block 803 to be tested along the test track;
(2-4) adjusting the inclination of the probe wheel fixing support 9, the front and back relative positions of the probe wheel on the test module or the rotation angle of the probe wheel 13 in the horizontal plane in real time according to the test requirements of each probe, and adjusting the echo of each probe to obtain corresponding test data;
and (2-5) repeating the steps (2-1) to (2-4) and testing different static indexes of the probe wheel 13.
In other embodiments, the left-right translation seat 3 and the front-back translation seat 5 may also be provided with a suitable driving device (such as a motor cooperating with a synchronous pulley).
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a visit static test adjusting device of wheel which characterized in that: the device comprises a rack, a left-right translation guide rail, a left-right translation seat, a front-back translation guide rail, a front-back translation seat, a rotary guide rail, a rotary seat, a test block mechanism, a probe wheel fixing support and a probe wheel adjusting device; the left and right translation guide rails are arranged on the rack along the left and right direction, the left and right translation seats are arranged on the left and right translation guide rails and can move along the left and right translation guide rails, the front and back translation guide rails are arranged on the left and right translation seats along the front and back direction, the front and back translation seats are arranged on the front and back translation guide rails and can move along the front and back translation guide rails, the rotating guide rails are arranged on the front and back translation seats, the rotating seats are arranged on the rotating guide rails and can move along the rotating guide rails, and the probe wheel fixing supports are arranged on the rotating seats; the test block mechanism comprises a calibration test block, at least one test track and at least one test block, wherein each test track is arranged on the rack in parallel and is positioned below the probe wheel fixing support, the length direction of each test track is consistent with the length direction of the front and back translation guide rails, the calibration test block and the test block are detachably mounted on the corresponding test tracks, and the alignment lines which are overlapped are arranged on each test track and the corresponding calibration test block or test block along the length direction of the calibration test block or test block; the rotary seat and the detection wheel fixing support are of an axisymmetric structure in the left-right direction, the symmetric axis of the rotary seat is overlapped with the symmetric axis of the detection wheel fixing support, the rotary seat can rotate around the center point of the rotary guide rail along the rotary guide rail, a plurality of rotary positioning holes are formed in the front translation seat and the rear translation seat along the extending direction of the rotary guide rail, and rotary positioning pieces capable of being matched and locked with the rotary positioning holes are arranged on the rotary seat; at least one translation positioning hole is formed in the rack along the extending direction of the left translation guide rail and the right translation guide rail and is positioned on the corresponding centering line of the test track; the left translation seat and the right translation seat are provided with translation positioning parts which can be matched and locked with the translation positioning holes, and the translation positioning parts are positioned on the symmetry axis of the probe wheel fixing support.
2. The probe wheel static test adjustment device of claim 1, wherein: visit wheel adjusting device and include visiting wheel adjusting bracket and three screw rod adjustment mechanism, visit wheel adjusting bracket and install on the roating seat, three screw rod adjustment mechanism all installs on visiting wheel adjusting bracket, and one of them screw rod adjustment mechanism sets up visit the front side of wheel fixed bolster, two other screw rod adjustment mechanism symmetry respectively set up in the left and right sides of visiting wheel fixed bolster rear side.
3. The probe wheel static test adjustment device of claim 2, wherein: the screw rod adjusting mechanism comprises an adjusting screw rod, an adjusting support and an adjusting connecting block, the adjusting connecting block is fixedly installed on the detection wheel adjusting support, the adjusting support is installed at a corresponding position on the detection wheel fixing support, a vertical first screw hole is formed in the adjusting connecting block, the adjusting screw rod is in threaded connection with the corresponding first screw hole, and the lower end of the adjusting screw rod is rotatably connected with the adjusting support.
4. The probe wheel static test adjustment device of any one of claims 3, wherein: the rotary seat is also provided with a support fine adjustment mechanism, and the support fine adjustment mechanism comprises a fine adjustment screw rod, a fine adjustment connecting block, a fine adjustment guide block, a first fine adjustment guide rail and a second fine adjustment guide rail; the first fine tuning guide rail and the second fine tuning guide rail are arranged on the rotating seat along the left-right direction, and the fine tuning connecting block is arranged on the rotating seat; the fine setting connecting block is provided with a second screw hole, the thread section of the fine setting screw rod is in threaded connection with the second screw hole, the fine setting guide block is installed on the second fine setting guide rail and can move along the second fine setting guide rail, the tail end section of the fine setting screw rod is in rotatable connection with the fine setting guide block through a bearing, the detection wheel adjusting support is installed on the first fine setting guide rail and can move along the first fine setting guide rail and move left and right, and the detection wheel adjusting support is connected with the fine setting guide block.
5. The probe wheel static test adjustment device of any one of claims 1 to 4, wherein: the front end of the test track is provided with an inclined plane which extends downwards from back to front.
6. The probe wheel static test adjustment device of any one of claims 1 to 4, wherein: the detection wheel calibration device further comprises a coupling liquid circulation mechanism, the coupling liquid circulation mechanism comprises a coupling liquid pool, a submersible pump and a liquid conveying pipe, the coupling liquid pool is arranged on the rack and is located below the test block, the submersible pump is arranged in the coupling liquid pool, a liquid inlet of the liquid conveying pipe is connected with the submersible pump, and a liquid outlet of the liquid conveying pipe is arranged on the detection wheel fixing support.
7. A probe wheel static test method using the probe wheel static test adjustment apparatus of claim 1, characterized by comprising the steps of:
(1) and (3) calibrating a probe wheel:
(1-1) adjusting the probe wheel fixing support to enable positioning pieces on the left translation seat and the right translation seat to be positioned on an extension line of a symmetrical shaft of the probe wheel fixing support;
(1-2) mounting the probe wheel on a probe wheel fixing support, so that the axle wire of the axle of the probe wheel is superposed with the symmetry axis of the probe wheel fixing support;
(1-3) moving the left and right translation seats to enable the symmetry axis of the probe wheel fixing support to be overlapped with the centering line of the test track where the calibration module is located;
(1-4) moving the front and back translation seat to enable the probe wheel to move to the calibration module along the test track;
(1-5) connecting the probe wheel to a corresponding detector instrument, and reading the echo condition of each probe;
(1-6) adjusting the inclination of the probe wheel fixing support in real time according to the real-time echo condition of each probe, so as to adjust the echo of each probe;
(1-7) according to the real-time echo condition of each probe, moving the position of the probe wheel back and forth along the test track in real time, and adjusting the position of the probe wheel on the calibration module so as to adjust the echo of each probe;
(1-8) repeating the step (6) and the step (7) until the echo condition of each probe meets the calibration requirement;
(2) testing the static indexes of the probe wheel:
(2-1) moving the left-right translation seat to a test track where a test block to be tested is located;
(2-2) moving the front and back translation seat to enable the probe wheel to move to a required test block along the test track;
(2-3) adjusting the inclination of the probe wheel fixing support, the front and back relative positions of the probe wheel on the test block or the rotation angle of the probe wheel in the horizontal plane in real time according to the test requirements of each probe, and adjusting the echo of each probe to obtain corresponding test data;
and (2-4) repeating the steps (2-1) to (2-3) and testing different static indexes.
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| CN114813971A (en) * | 2022-06-30 | 2022-07-29 | 广东汕头超声电子股份有限公司 | Steel rail probe development test method and test platform |
| CN114878692A (en) * | 2022-07-12 | 2022-08-09 | 广东汕头超声电子股份有限公司 | Guided wave probe comprehensive test method and test platform |
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| CN111693613B (en) | 2024-08-30 |
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