CN110500949B - Continuity detection device for rail surface abrasion - Google Patents
Continuity detection device for rail surface abrasion Download PDFInfo
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- CN110500949B CN110500949B CN201910761488.2A CN201910761488A CN110500949B CN 110500949 B CN110500949 B CN 110500949B CN 201910761488 A CN201910761488 A CN 201910761488A CN 110500949 B CN110500949 B CN 110500949B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/34—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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Abstract
The invention relates to the technical field of rail detection equipment, and discloses a continuity detection device for rail surface abrasion, which comprises a steel rail, wherein the top end of the steel rail is clamped with a fixed support, the bottom end of the left side of the fixed support is fixedly provided with a side pulley, the top of the inner cavity of the fixed support is movably sleeved with a top pulley through an installation support, and the middle of the front surface of the fixed support is provided with a detection mechanism. This continuity detection device is used in track surface wear, setting through probe rod mechanism and piezoelectric sheet, the slight removal that utilizes probe rod mechanism to produce when the rail moves is and is turned into current signal feedback with it and come out, compare with current track wear measurement chi, can carry out the continuity to appointed track and detect, obtain continuous detected data, and not to its point-to-point detection, it is higher to cause the detected data stability and the reliability that obtain, be convenient for carry out effectual arrangement analysis to it, and then the effectual detection precision that has improved the device.
Description
Technical Field
The invention relates to the technical field of track detection equipment, in particular to a continuity detection device for track surface abrasion.
Background
Because the steel rails in the rail transit are mostly distributed outdoors, the outdoor living environment is complex, the steel rails are often washed and corroded by rainwater and exposed to sunlight, and meanwhile, the pressure of train carriages and the severe friction of wheels are born, so that the abrasion of the steel rails becomes an inevitable phenomenon.
But the current track surface wear detects the setting, can only select the measuring point to detect in certain region, can't carry out the continuity to a section rail and detect, causes the data dispersibility that detects great and the error great, serious influence to the precision that this section rail surface wear detected, can't make accurate analysis and judgement to the wearing and tearing reason of this section rail simultaneously.
Disclosure of Invention
Technical problem to be solved
The invention provides a continuity detection device for rail surface wear, which has the advantages of better continuity of detected data, higher stability, lower error and high detection accuracy, and solves the problems that the existing detection device for rail surface wear can only select a measuring point in a certain area for detection and cannot perform continuity detection on a section of steel rail, so that the detected data has larger dispersity and larger error, the detection accuracy of the rail surface wear of the section of steel rail is seriously influenced, and meanwhile, the wear reason of the section of steel rail cannot be accurately analyzed and judged.
(II) technical scheme
The invention provides the following technical scheme: the utility model provides a track is continuity detection device for surface wear, includes the rail, the top joint of rail has the fixed bolster, the left bottom fixed mounting of fixed bolster has the side pulley, the top of fixed bolster inner chamber has cup jointed the top pulley through the installing support activity, the positive middle part of fixed bolster is equipped with detection mechanism, and detection mechanism's bottom and the top contact of rail, the bottom fixed mounting on fixed bolster right side has detection mechanism, the middle part on fixed bolster inner chamber top is equipped with the counter weight briquetting, the both sides difference fixed mounting on fixed bolster top has the detection record system, and detects supporting setting between record system and the detection mechanism.
Preferably, the detection mechanism on the right side of the fixed support and the two groups of side pulleys on the left side of the fixed support are arranged in an isosceles triangle.
Preferably, the detection mechanism is including detecting the shell body, the top activity of detecting the shell body inner chamber is cup jointed with the magnetism bull stick, the middle part of detecting the shell body inner chamber is equipped with probe rod mechanism, and probe rod mechanism's bottom runs through and extends to the bottom of detecting the shell body, the bottom fixed mounting of detecting the shell body inner chamber has probe rod mechanism.
Preferably, the middle part of the inner cavity of the detection shell body is provided with a fixed sliding sleeve, and the outer surface of the detection shell body is movably connected with the fixed support through a fixed screw rod.
Preferably, the probe rod mechanism comprises a movable probe rod, the outer surface of the movable probe rod is movably sleeved with the inner wall of a fixed sliding sleeve in the inner cavity of the detection shell, a groove is formed in the middle of the front surface of the movable probe rod, the piezoelectric sheet is located inside the groove, and a fixed ejector rod is fixedly mounted at the top end of the groove.
Preferably, the middle part of the outer surface of the movable probe rod is provided with a limiting stop lever, the top end of the movable probe rod is provided with a hemispherical magnetic block, and the bottom end of the movable probe rod is provided with a top block mechanism with a spherical structure.
Preferably, the rotating diameter of the magnetic rotating rod is smaller than the inner diameter of the detection shell, and the length of the movable probe above the limiting stop rod is equal to the distance from the bottom end of the magnetic rotating rod to the bottom end of the fixed sliding sleeve on the detection shell.
(III) advantageous effects
The invention has the following beneficial effects:
1. this continuity detection device is used in track surface wear, setting through probe rod mechanism and piezoelectric sheet, the slight removal that utilizes probe rod mechanism to produce when the rail moves is and is turned into current signal feedback with it and come out, compare with current track wear measurement chi, can carry out the continuity to appointed track and detect, obtain continuous detected data, and not to its point-to-point detection, it is higher to cause the detected data stability and the reliability that obtain, be convenient for carry out effectual arrangement analysis to it, and then the effectual detection precision that has improved the device.
2. This track continuity detection device for surface wear, through the setting that detects shell body and magnetism bull stick, utilize the change of magnetic pole on the magnetism bull stick and carry out effectual adjustment between fixed ejector pin and the piezoelectric sheet, and then improved the precision of activity probe when the correction, can effectually ensure the contact on activity probe and rail surface simultaneously, avoid appearing the surface emergence of activity probe and rail and break away from not hard up phenomenon, further the device's the detection precision.
3. This track continuity detection device for surface wear through the setting of two sets of side pulleys and counter weight briquetting, utilizes gravity to cooperate the activity probe rod simultaneously can stabilize effectual whole detection device joint on the rail, makes its in-process that moves the condition that rocks all around can not appear, and then further improvement this continuity detection device's accurate nature.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view at A-A of the present invention;
FIG. 3 is a cross-sectional view at B-B of the present invention;
FIG. 4 is a schematic view of the loosening mechanism of the present invention;
FIG. 5 is a schematic diagram of a pressing structure of the detecting mechanism of the present invention;
FIG. 6 is an enlarged view of the point C in FIG. 1 according to the present invention.
In the figure: 1. a steel rail; 2. fixing a bracket; 3. a side pulley; 4. mounting a bracket; 5. a top pulley; 6. a detection mechanism; 61. detecting the outer shell; 62. a magnetic rotating rod; 63. a probe rod mechanism; 631. a movable probe rod; 632. a groove; 633. fixing the ejector rod; 64. a piezoelectric sheet; 7. a counterweight pressing block; 8. detecting a recording system; 9. and an independent digital display system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a continuity testing device for rail surface wear comprises a steel rail 1, a fixed support 2 is clamped at the top end of the steel rail 1, a side pulley 3 is fixedly mounted at the left bottom end of the fixed support 2, a top pulley 5 is movably sleeved at the top of an inner cavity of the fixed support 2 through a mounting support 4, a testing mechanism 6 is arranged at the front middle part of the fixed support 2, the bottom end of the testing mechanism 6 is in contact with the top end of the steel rail 1, a testing mechanism 6 is fixedly mounted at the bottom end of the right side of the fixed support 2, a counterweight pressing block 7 is arranged at the middle of the top end of the inner cavity of the fixed support 2, testing recording systems 8 are respectively and fixedly mounted at two sides of the top end of the fixed support 2.
The device can be used for simultaneously detecting the top and the inner side of the steel rail 1 by setting the top and the right detection mechanism 6 on the fixed support 2, feeding current signals in the detection mechanism 6 back to the detection recording system 8 for processing, converting the current signals into digital image-text information for displaying, and comparing the digital image-text information with data detected last time and initial data of the steel rail 1 for professional detection personnel to analyze and judge.
In this technical scheme, detection mechanism 6 on fixed bolster 2 right side and two sets of side pulleys 3 on the left of fixed bolster 2 become isosceles triangle and arrange.
Wherein, to two sets of side pulleys 3 on the fixed bolster 2 rather than the distribution structure setting of going up right side detection mechanism 6, can improve the stability of this detection device joint at rail 1 during operation, the condition that rocks around can not taking place when rail 1 motion can be ensured to counter weight briquetting 7 in the cooperation fixed bolster 2 simultaneously, and then the effectual accuracy that has improved this continuity detection device at the 1 surface wear in-process of detection rail.
In this technical scheme, detection mechanism 6 has magnetism bull stick 62 including detecting shell body 61, and the top activity that detects the shell body 61 inner chamber is cup jointed, and the middle part that detects the shell body 61 inner chamber is equipped with feeler lever mechanism 63, and feeler lever mechanism 63's bottom runs through and extends to the bottom that detects shell body 61, and the bottom fixed mounting that detects the shell body 61 inner chamber has feeler lever mechanism 63.
In the arrangement of the detection mechanism 6, the piezoelectric sheet 64 is used to convert the slight change of the probe mechanism 63 generated during the surface movement of the steel rail 1 into a current signal, and the current signal is transmitted to the detection recording system 8 for analysis processing.
In this technical scheme, the middle part that detects the shell body 61 inner chamber is equipped with fixed sliding sleeve, and detects swing joint between shell body 61's surface through clamping screw and the fixed bolster 2.
In this technical scheme, probe mechanism 63 includes activity probe 631, and the surface of activity probe 631 cup joints with the inner wall activity that detects fixed sliding sleeve in the shell body 61 inner chamber, and the positive middle part of activity probe 631 is seted up flutedly 632, and piezoelectric sheet 64 is located the inside of flutedly 632, and the top fixed mounting of flutedly 632 has fixed ejector pin 633.
In the above configuration, the detection mechanism 6 and the independent digital display system 9 are arranged in a matching manner, and the detection housing 61 and the fixed bracket 2 are movably connected by the screw, so that the piezoelectric sheet 64 can be subjected to zero calibration before the detection device detects the rail 1 (the position between the piezoelectric sheet 64 and the movable feeler lever 631 is adjusted to be in a state of being in contact with each other, and the detection of the independent digital display system 9 on the current signal of the piezoelectric sheet 64 is displayed as zero).
The piezoelectric effect of the piezoelectric sheet 64 is mainly that when some dielectrics are deformed by external force in a certain direction, polarization phenomenon is generated inside the dielectrics, and charges with opposite positive and negative charges appear on two opposite surfaces of the dielectrics, so that current signals can be accurately extracted by using a circuit amplification system and converted into digital graphic and text information to be displayed.
In the technical scheme, the middle part of the outer surface of the movable probe 631 is provided with a limit stop lever, the top end of the movable probe 631 is provided with a hemispherical magnetic block, and the bottom end of the movable probe 631 is provided with a top block mechanism with a spherical structure.
In this technical solution, the rotation diameter of the magnetic rotating rod 62 is smaller than the inner diameter of the detection housing 61, and the length of the movable feeler lever 631 located above the limit stop lever is equal to the distance from the bottom end of the magnetic rotating rod 62 to the bottom end of the fixed sliding sleeve on the detection housing 61.
Wherein, to the setting of activity probe 631 and magnetism bull stick 62, ensured that magnetism bull stick 62 can not take place collision each other between pivoted in-process and the activity probe 631, and hindered magnetism bull stick 62's normal rotation and adjusted, make simultaneously the bottom of activity probe 631 can effectually and take place the contact between the surface of rail 1, can not appear taking place the phenomenon that breaks away from between activity probe 631 and the rail 1 at the in-process that the device detected, further improvement this detection device's precision.
Meanwhile, the maximum stroke of the movable detecting rod 631 capable of moving upwards when the magnetic rotating rod 62 is rotated, which is effectively limited by the limit stop on the movable detecting rod 631, protects the piezoelectric sheet 64 and ensures that the movable detecting rod 631 cannot be damaged by collision when the magnetic rotating rod 62 is switched between different magnetic poles.
The use method and the working principle of the embodiment are as follows:
firstly, the continuity detecting device is clamped on a steel rail 1, then a magnetic rotating rod 62 positioned on the right side of a fixed support 2 is rotated to enable a magnetic pole on the magnetic rotating rod to repel a magnetic pole of a hemispherical magnetic block on the top end of a movable feeler lever 631, so that the movable feeler lever 631 is driven to move downwards by a distance, meanwhile, a fixed screw rod for fixing a detecting outer shell 61 is loosened, further, the position relation between the detecting outer shell 61 and the steel rail 1 is adjusted, a fixed ejector rod 633 on the movable feeler lever 631 is just contacted with a piezoelectric sheet 64, current reading on an independent digital display system 9 is observed to be just zero, then the detecting outer shell 61 is locked by the fixed screw rod on the detecting outer shell 61, meanwhile, under the action of two groups of side pulleys 3 on the left side of the fixed support 2 and a counter weight press block 7, a detecting mechanism 6 positioned on the top end of the fixed support 2 is adjusted to enable the, the whole detection device is stably clamped on the top of the steel rail 1, meanwhile, other measuring tools are used for detecting and recording the data of the steel rail 1 under the initial position of the continuity detection device, then the detection device is moved on the steel rail 1, under the action of the magnetic repulsion on the magnetic rotating rod 62 and the movable detection rod 631, the ejector block mechanism at the bottom end of the movable detection rod 631 is always in contact with the top and the inner side of the steel rail 1, when the surface of the steel rail 1 is abraded, under the action of the magnetic repulsion, the movable detection rod 631 and the fixed ejector rod 633 on the movable detection rod 631 are driven to move to one side and compress the piezoelectric sheet 64, so that the piezoelectric sheet 64 generates a piezoelectric effect, the generated current is fed back to the detection and recording system 8 to be processed, and is converted into digital image-text information to be displayed and compared with the detected data last time and the initial data recorded by the steel rail 1, and then the abrasion condition of the section of steel rail 1 is analyzed and judged, after the detection of the section of steel rail 1 is completed, the magnetic rotating rod 62 is rotated again to enable the magnetic pole on the magnetic rotating rod to be attracted with the magnetic pole on the movable detecting rod 631, so that the movable detecting rod 631 is driven to move to the other side, meanwhile, the fixed ejector rod 633 and the piezoelectric sheet 64 are separated, a current signal is not generated any more, then the fixed screw on the detection shell 61 is loosened again, the detection device is taken out, and the surface abrasion detection operation of the section of steel rail 1 is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A continuity testing device for track surface wear, includes rail (1), its characterized in that: the detection device is characterized in that a fixed support (2) is clamped at the top end of the steel rail (1), a side pulley (3) is fixedly mounted at the bottom end of the left side of the fixed support (2), a top pulley (5) is movably sleeved at the top of an inner cavity of the fixed support (2) through an installation support (4), a detection mechanism (6) is arranged in the middle of the front face of the fixed support (2), the bottom end of the detection mechanism (6) is in contact with the top end of the steel rail (1), the detection mechanism (6) is fixedly mounted at the bottom end of the right side of the fixed support (2), a counterweight pressing block (7) is arranged in the middle of the top end of the inner cavity of the fixed support (2), detection recording systems (8) are fixedly mounted on two sides of the top end of the fixed support (2) respectively;
the detection mechanism (6) on the right side of the fixed support (2) and the two groups of side pulleys (3) on the left side of the fixed support (2) are arranged in an isosceles triangle;
the detection mechanism (6) comprises a detection outer shell (61), a magnetic rotating rod (62) is movably sleeved at the top of an inner cavity of the detection outer shell (61), a probe rod mechanism (63) is arranged in the middle of the inner cavity of the detection outer shell (61), the bottom end of the probe rod mechanism (63) penetrates through and extends to the bottom of the detection outer shell (61), and the probe rod mechanism (63) is fixedly installed at the bottom of the inner cavity of the detection outer shell (61);
a fixed sliding sleeve is arranged in the middle of the inner cavity of the detection outer shell (61), and the outer surface of the detection outer shell (61) is movably connected with the fixed support (2) through a fixed screw rod;
the probe mechanism (63) comprises a movable probe (631), the outer surface of the movable probe (631) is movably sleeved with the inner wall of a fixed sliding sleeve in the inner cavity of the detection outer shell (61), a groove (632) is formed in the middle of the front surface of the movable probe (631), the piezoelectric sheet (64) is located inside the groove (632), and a fixed ejector rod (633) is fixedly mounted at the top end of the groove (632);
a limiting stop lever is arranged in the middle of the outer surface of the movable probe rod (631), a hemispherical magnetic block is arranged at the top end of the movable probe rod (631), and a top block mechanism with a spherical structure is arranged at the bottom end of the movable probe rod (631);
the rotating diameter of the magnetic rotating rod (62) is smaller than the inner diameter of the detection shell body (61), and the length of the movable feeler lever (631) above the limit stop lever is equal to the distance from the bottom end of the magnetic rotating rod (62) to the bottom end of the fixed sliding sleeve on the detection shell body (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910761488.2A CN110500949B (en) | 2019-08-18 | 2019-08-18 | Continuity detection device for rail surface abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910761488.2A CN110500949B (en) | 2019-08-18 | 2019-08-18 | Continuity detection device for rail surface abrasion |
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| Publication Number | Publication Date |
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| CN110500949A CN110500949A (en) | 2019-11-26 |
| CN110500949B true CN110500949B (en) | 2021-05-28 |
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| CN201910761488.2A Expired - Fee Related CN110500949B (en) | 2019-08-18 | 2019-08-18 | Continuity detection device for rail surface abrasion |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928752B (en) * | 2020-08-07 | 2022-01-28 | 山东高速铁建装备有限公司 | Rail frog wear detection ruler |
| CN112285208B (en) * | 2020-11-04 | 2021-06-01 | 郑州铁路职业技术学院 | Railway track flaw detection device and flaw detection method thereof |
| CN112945258B (en) * | 2021-01-14 | 2022-05-27 | 北京市市政工程研究院 | Distance measuring equipment depending on steel rail |
| CN112644556B (en) * | 2021-01-20 | 2024-03-12 | 蔡良云 | Robot for detecting abrasion of train rail |
| CN117450924B (en) * | 2023-10-25 | 2024-04-02 | 武汉万曦智能科技有限公司 | Robot and method for detecting out-of-tolerance abrasion of guide rail |
| CN118032862A (en) * | 2024-04-11 | 2024-05-14 | 四川交通职业技术学院 | Rail abrasion detection device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3306168B2 (en) * | 1993-05-11 | 2002-07-24 | 日立機電工業株式会社 | Rail displacement and wear measuring device |
| CN201795777U (en) * | 2010-08-31 | 2011-04-13 | 中国铁道科学研究院铁道建筑研究所 | Mobile undulatory wear detector |
| CN203231740U (en) * | 2013-03-12 | 2013-10-09 | 中南大学 | Railway track abrasion detector |
| CN103900509B (en) * | 2014-01-23 | 2017-01-04 | 河海大学常州校区 | A kind of device realizing multi-faceted detection |
| CN205352332U (en) * | 2015-12-29 | 2016-06-29 | 北京铁路局石家庄工务段 | Dolly is measured in wearing and tearing of portable rail |
| CN206813024U (en) * | 2017-06-28 | 2017-12-29 | 四川建筑职业技术学院 | A kind of track connects beat detector |
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Effective date of registration: 20210511 Address after: 253000 Room 401, unit 2, building 1, 71 Dexing North Road, Decheng District, Dezhou City, Shandong Province Applicant after: Liu Guohua Address before: No. 78, Huajiachi, Jianggan District, Hangzhou City, Zhejiang Province, 310016 Applicant before: Xu Wenjun |
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