CN111595940A - Automatic centering and monitoring device for rail flaw detector - Google Patents
Automatic centering and monitoring device for rail flaw detector Download PDFInfo
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- CN111595940A CN111595940A CN202010455860.XA CN202010455860A CN111595940A CN 111595940 A CN111595940 A CN 111595940A CN 202010455860 A CN202010455860 A CN 202010455860A CN 111595940 A CN111595940 A CN 111595940A
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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
- G01N29/04—Analysing solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
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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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
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Abstract
The invention discloses an automatic centering and monitoring device of a rail flaw detector, which is characterized by comprising the following components: the device comprises an outer frame, a horizontal adjusting part, a horizontal detecting part and a probe wheel fixing part, wherein the horizontal adjusting part, the horizontal detecting part and the probe wheel fixing part are arranged on the outer frame; the horizontal adjusting part comprises a horizontal guide piece fixed on the outer frame, a horizontal supporting piece connected with the horizontal guide piece in a sliding way, and a horizontal driving piece used for driving the horizontal supporting piece to horizontally displace along the horizontal guide piece; the horizontal detection part is provided with a horizontal sensor for detecting the horizontal position of the horizontal adjustment part, the horizontal sensor is in signal connection with a horizontal driving part, and the detection wheel fixing part is used for detecting a detection wheel of the fixed track flaw detector, wherein the horizontal driving part drives a horizontal supporting part to perform horizontal position adjustment in response to the horizontal adjustment signal of the horizontal sensor so as to drive the detection wheel fixing part to be automatically centered with a track. The invention realizes automatic control, and automatically alarms and resets when the deviation of the detection wheel exceeds a preset value, so that the detection wheel is always coupled with the top surface of the guide rail.
Description
Technical Field
The invention belongs to the technical field of rail flaw detection, and particularly relates to an automatic centering and monitoring device for a rail flaw detector.
Background
The railway is one of the most important infrastructures of the country as the main artery of national economy, and is also the most popular transportation mode related to each citizen. In China, along with the increase of the speed and the axle weight of a train and the expansion and contraction of metal caused by environmental reasons, the damage speed of a steel rail is correspondingly increased, so that the detection period also tends to be shortened, and the flaw detection work of the steel rail is an important measure for ensuring the running safety of a railway.
The steel rail flaw detection work in China mainly adopts an ultrasonic detection method, and mainly detects steel rails by using a large flaw detection vehicle and a small flaw detector. The large flaw detection vehicle has high flaw detection speed and is well suitable for the railway industry of rapid development in China, but the large flaw detection vehicle has high equipment cost and poor flexibility and cannot be popularized and used in steel rail detection work. The small flaw detector is arranged on the small-sized trolley and is manually pushed or autonomously driven to detect a road section to be detected, and because the small flaw detector is small in size and light in weight, one or two rail flaw detectors can move the small flaw detector onto or off a rail, so that the flaw detection operation on the rail can be flexibly carried out by utilizing the running clearance of a train.
The flaw detector detects the flaw of the steel rail according to the reflected ultrasonic echo of the flaw of the steel rail, and when the ultrasonic probe is used for detecting the flaw of the steel rail, the 0-degree ultrasonic probe needs to be aligned with the geometric central line of the section of the steel rail. When the ultrasonic probe is aligned to the central line of the section of the steel rail, if the steel rail is not damaged, the ultrasonic probe can receive a stronger rail bottom echo (bottom wave) signal; if the rail is damaged, the ultrasonic probe receives a damage echo signal, so that the damage of the rail is detected. When the ultrasonic probe deviates from the steel rail, the intensity of the bottom wave signal is weakened or even disappears, so that the steel rail damage can be hardly or even not detected. However, double track flaw detection car among the prior art is at the high-speed operation in-process of detecting a flaw, snakelike motion aggravation, influence the work of ultrasonic wave probe wheel, the demarcation before the operation can utilize manual regulation to make probe wheel be in the optimum position, nevertheless manual regulation can't satisfy the operation demand of detecting a flaw when the high-speed operation of detecting a flaw, in addition, when detecting to the fork harmful space, probe wheel often can break away from on the track, probe wheel must be again through the adjustment so that probe wheel and the good coupling of track top surface when the dolly is gone up the rail again, great increase artifical labour.
Disclosure of Invention
The invention aims to provide an automatic centering and monitoring device for a rail flaw detector, which aims to solve the technical problems that snake-shaped motion of the rail flaw detector is intensified during high-speed flaw detection operation, and the ultrasonic detection wheel cannot be kept to normally detect through manual adjustment.
In order to solve the problems, the technical scheme of the invention is as follows:
the invention discloses an automatic centering and monitoring device of a rail flaw detector, which comprises: the device comprises an outer frame, a horizontal adjusting part, a horizontal detecting part and a probe wheel fixing part, wherein the horizontal adjusting part, the horizontal detecting part and the probe wheel fixing part are arranged on the outer frame; the horizontal adjusting part comprises a horizontal guide piece fixed on the outer frame, a horizontal supporting piece connected with the horizontal guide piece in a sliding way, and a horizontal driving piece used for driving the horizontal supporting piece to horizontally displace along the horizontal guide piece; the horizontal detection part is provided with a horizontal sensor for detecting the horizontal position of the horizontal adjustment part, the horizontal sensor is in signal connection with a horizontal driving part, and the detection wheel fixing part is used for detecting a detection wheel of the fixed track flaw detector, wherein the horizontal driving part drives a horizontal supporting part to perform horizontal position adjustment in response to the horizontal adjustment signal of the horizontal sensor so as to drive the detection wheel fixing part to be automatically centered with a track.
The horizontal guide piece is an optical axis, and the optical axis is fixed on two sides of the outer frame along the moving direction of the horizontal support piece;
the horizontal support piece is a horizontal support plate, and sliding pipelines which are sleeved on the optical axis and are in sliding connection with the optical axis are arranged on two sides of the horizontal support plate.
The horizontal driving part is an electric push rod, a hydraulic push rod or a pneumatic push rod, is fixed on the outer frame and is in driving connection with the horizontal supporting part, and the outer frame is used for supporting and pushing the horizontal supporting part to horizontally move.
The horizontal detection part comprises a sensor support part fixed on the horizontal support part, a sensor bracket detachably connected with the sensor support part, and a sensor mounting part used for mounting the horizontal sensor.
Specifically, one end of the sensor support is detachably connected with one end of the sensor support along the advancing direction of the rail flaw detector, the joint of the sensor support and the sensor support is located in the middle of the end face of the sensor support, and the other end of the sensor support is fixedly connected with the sensor mounting piece. The sensor mounting part comprises a bottom plate and side plates which are arranged in parallel with each other and connected with the bottom plate, a guide shaft is arranged between the side plates, a horizontal sensor and a linear bearing are sleeved on the guide shaft, the horizontal sensor comprises a first horizontal sensor and a second horizontal sensor, and the linear bearing is used for adjusting the distance between the first horizontal sensor and the second horizontal sensor.
Further preferably, the angle adjusting device further comprises an angle adjusting portion, the angle adjusting portion comprises an arc-shaped guide piece fixed on the horizontal support piece, an angle support piece connected with the arc-shaped guide piece in a sliding mode, and an angle driving piece used for driving the angle support piece to adjust the angle along the arc-shaped guide piece, the angle support piece is connected with the detection wheel fixing portion, and the circle center of the guide arc of the arc-shaped guide piece is located at the center position of the detection wheel fixed on the detection wheel fixing portion.
The arc-shaped guide piece is an arc-shaped guide rail or an arc-shaped guide groove, and the arc-shaped guide piece is fixed on two sides of the horizontal support piece along the angle adjusting direction of the angle support piece;
the angle supporting piece is an angle supporting plate, and sliding blocks or pulleys which are connected with the arc-shaped guide piece in a sliding mode are arranged on two sides of the angle supporting plate; the end face of the angle supporting plate far away from the horizontal supporting plate is connected with the probe wheel fixing part.
The angle driving part is an electric push rod, a hydraulic push rod or a pneumatic push rod, an angle adjusting frame is arranged at one end, not provided with the arc-shaped guide part, of the horizontal support part, the angle driving part is fixed on the angle adjusting frame and is in driving connection with the angle support part, and the angle adjusting frame is used for supporting and pushing the angle of the angle support part to adjust.
Further preferably, the angle support plate is connected with the probe wheel fixing part through the vertical adjusting bolt, and the vertical adjusting bolt is used for adjusting the vertical displacement of the probe wheel fixing part and the angle support plate.
Specifically, the outer frame is provided with guide wheels and guide plows at two sides of the probe wheel fixing part along the track direction;
the guide wheel is used for enabling the flaw detection trolley to cling to the guide rail;
the guide plough is used for preventing the flaw detection trolley from derailing and derailing in a harmful space of the aisle fork.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
1) the invention adopts the horizontal sensor to detect the offset of the probe wheel, when the flaw detection trolley moves at high speed and the offset of the probe wheel exceeds the preset value, the horizontal sensor generates a signal and gives an alarm in flaw detection software, and the horizontal driving piece is used for adjusting the horizontal supporting piece so as to reset the ultrasonic probe wheel, thereby realizing automatic control, improving the detection accuracy and reducing the manual labor;
2) the horizontal adjusting part, the horizontal detecting part and the probe wheel fixing part in the invention are independently movable by taking the flaw detection trolley as a reference object, when the flaw detection trolley moves in a snake shape, automatic reset can be realized, and the probe wheel is kept to be basically static in the horizontal direction of the guide rail, so that the probe wheel is always kept to be coupled with the top surface of the guide rail;
3) the guide wheel, the guide plough and the elastic component are arranged in the rail track, and under the action of the elastic component, the guide wheel is tightly attached to the working surface of the rail track, so that the ultrasonic probe wheel can be ensured to run on the central line of the steel rail at any time; the guide plough is used for preventing the flaw detection trolley from derailing and derailing in a harmful space of the aisle turnout, and the safety and reliability are improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
FIG. 1 is a schematic structural diagram of an automatic centering and monitoring device of a rail flaw detector according to the present invention;
FIG. 2 is a schematic structural view of a horizontal detection part of the automatic centering and monitoring device of the rail flaw detector of the present invention;
FIG. 3 is a schematic structural diagram of a centering portion of the automatic centering and monitoring device of the rail flaw detector of the present invention;
FIG. 4 is a schematic structural diagram of an outer frame of the automatic centering and monitoring device of the rail flaw detector of the present invention;
fig. 5 is a schematic structural view of a probe wheel adjusting part of the automatic centering and monitoring device of the rail flaw detector.
Description of reference numerals:
1: a probe wheel fixing part; 2: locking the bolt; 3: a horizontal support plate; 301: an arc-shaped guide member; 302: a sliding duct; 303: a junction box; 401: an angle support plate; 402: a guide rail slider; 403: a slider mounting plate; 404: an angle adjusting frame; 405: an angle drive; 5: a vertical adjusting bolt; 601: a horizontal drive mounting block; 602: a horizontal drive member; 603: a sensor support; 604: a sensor holder; 605: a linear bearing; 606: a sensor mounting bracket; 607: a level sensor; 608: a guide shaft; 7: a main frame; 8: a horizontal fixing frame; 801: a square beam main pipe; 9: a front frame; 10: a guide wheel bracket; 11: an optical axis; 12: a horizontal guide mounting seat; 13: a guide wheel; 14: a guide plow; 15: and pre-tightening the spring.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The following describes in detail an automatic centering and monitoring device for a rail flaw detector according to the present invention with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.
Referring to fig. 1, 3 and 5, an automatic centering and monitoring apparatus for a rail flaw detector includes: the device comprises an outer frame, a horizontal adjusting part, a horizontal detecting part and a probe wheel fixing part 1, wherein the horizontal adjusting part, the horizontal detecting part and the probe wheel fixing part are arranged on the outer frame;
the horizontal adjusting part comprises a horizontal guiding part fixed on the outer frame, a horizontal supporting part connected with the horizontal guiding part in a sliding way, and a horizontal driving part 602 used for driving the horizontal supporting part to horizontally displace along the horizontal guiding part;
the level detecting part is provided with a level sensor 607 for detecting the level position of the level adjusting part,
the horizontal sensor 607 is in signal connection with the horizontal driving member 602, the probe wheel fixing part 1 is used for fixing the probe wheel of the rail flaw detector,
in response to the horizontal adjustment signal of the horizontal sensor 607, the horizontal driving member 602 drives the horizontal supporting member 602 to perform horizontal position adjustment, so as to drive the probe wheel fixing portion 1 to automatically center with the track.
The present embodiment will now be described in detail:
referring to fig. 3, in the present embodiment, the horizontal adjustment portion is used to control the probe wheel in the horizontal direction, and the horizontal adjustment portion includes: horizontal guides, horizontal supports and horizontal drives 602; the horizontal detection part is used for detecting the horizontal position of the detection wheel, the horizontal detection part is arranged on the horizontal supporting piece of the horizontal adjustment part, and the horizontal detection part is in signal connection with the horizontal adjustment part.
In addition, in the present embodiment, the probe wheel fixing portion 1 is for fixing an ultrasonic probe wheel, and the probe wheel fixing portion 1 includes: the ultrasonic detection wheel comprises a detection wheel mounting frame and two detection wheel supports, wherein the detection wheel mounting frame is arranged below the horizontal adjusting part, the two detection wheel supports are symmetrically arranged on two sides of the detection wheel mounting frame in parallel, the detection wheel mounting frame and the two detection wheel supports form a space for arranging an ultrasonic detection wheel, in addition, a connecting rod communicated between the two detection wheel supports is arranged, and the ultrasonic detection wheel is sleeved on the connecting rod; a detection wheel mounting frame of the detection wheel fixing part 1 is fixed on the lower end face of the angle supporting part through a dovetail groove and is locked through a locking bolt 2; the detection wheel is used for carrying out flaw detection operation under the help of the advancing power of the flaw detection trolley.
In addition, the probe wheel fixing part 1 and the horizontal adjusting part are both arranged on an outer frame, and the outer frame plays a role in fixed connection; preferably, a junction box 303 is also mounted on the horizontal support member to protect the wires and to connect the wires. Preferably, the two ends of the flaw detection trolley can be provided with the embodiment, so that two steel rails on the same track can be detected simultaneously in the advancing process of the flaw detection trolley.
Referring to fig. 3 and 4, specifically, the horizontal guide is an optical axis 11, and the optical axis 11 is fixed to both sides of the outer frame along the moving direction of the horizontal support; the horizontal support member is a horizontal support plate 3, and two sides of the horizontal support plate 3 are provided with sliding pipelines 302 which are sleeved on the optical axis 11 and are in sliding connection with the optical axis 11. The horizontal driving member 602 is an electric push rod, a hydraulic push rod or a pneumatic push rod, the horizontal driving member 602 is fixed on the outer frame and is in driving connection with the horizontal supporting member, and the outer frame is used for supporting and pushing the horizontal supporting member to move horizontally.
Referring to fig. 3 and 4, in the present embodiment, the horizontal guiding members are two optical axes 11 disposed in parallel, the optical axes 11 are fixedly connected to the outer frame, and the direction of disposing the optical axes 11 is perpendicular to the advancing direction of the present embodiment. The horizontal supporting piece is a horizontal supporting plate 3, two symmetrical groups of sliding pipelines 302 are arranged on two sides of the horizontal supporting plate 3 close to the optical axis 11, a linear bearing and a check ring for holes are installed in the sliding pipelines 302, and the optical axis 11 penetrates through the linear bearing, so that the horizontal supporting plate 3 is sleeved on the optical axis 11 and is in sliding connection;
the upper end surface of the horizontal support plate 3 is provided with a horizontal driving part 602 and a horizontal driving mounting block 601 for mounting the horizontal driving part 602, and the horizontal driving part 602 can be an electric push rod, a hydraulic push rod or a pneumatic push rod; one end of the horizontal driving member 602 is a fixed end and is connected with the outer frame, and the other end thereof is a driving end and is in driving connection with the horizontal supporting plate 3; when the horizontal sensor 607 of this embodiment finds that the probe wheel has a horizontal deviation in the detection process, the horizontal driving member 602 uses the outer frame as a supporting member to push the horizontal supporting plate 3, so as to drive the probe wheel to move in the horizontal direction, so that the horizontal relative position between the probe wheel and the track remains unchanged, and the probe wheel and the track are better coupled.
Referring to fig. 1 and 2, the level detecting part includes a sensor support 603 fixed to the level support, a sensor bracket 604 detachably coupled to the sensor support 603, and a sensor mounting member for mounting the level sensor 607. Specifically, one end of the sensor bracket 604 is detachably connected with one end of the sensor support 603 along the traveling direction of the rail flaw detector, the connection position of the sensor bracket 604 and the sensor support 603 is located in the middle of the end face of the sensor support 603, and the other end of the sensor bracket 604 is fixedly connected with the sensor mounting member. Specifically, the sensor mounting member includes a bottom plate, side plates connected to the bottom plate and disposed in parallel to each other, a guide shaft 608 is disposed between the side plates, a level sensor 607 and a linear bearing 605 are sleeved on the guide shaft 608, the level sensor 607 includes a first level sensor and a second level sensor, and the linear bearing 605 is used for adjusting a distance between the first level sensor and the second level sensor.
Referring to fig. 1 and 2, in the present embodiment, the sensor support 603 is connected to the horizontal support plate 3, and the sensor support 603 is horizontally displaced in synchronization with the horizontal support plate 3. One end of the sensor bracket 604 is connected with the sensor support 603 through the locking bolt 2, the connection position is the center of the end face of the sensor support 603, and the other end of the sensor bracket 604 is connected with the sensor mounting piece. Wherein, sensor mounting spare is U type structure, and its opening is towards the track, and sensor mounting spare's both sides board parallel arrangement is equipped with two guiding axles 608 between the board of both sides, and the cover is equipped with linear bearing 605 and sensor mounting bracket 606 on the guiding axle 608, and sensor mounting bracket 606 has one for fixed first level sensor, second level sensor is connected with the bottom plate of sensor mounting spare. Among them, the level sensor 607 is a laser sensor. Because the types (railhead widths) of the steel rails are different, the distance between the sensor mounting frame 606 and the second horizontal sensor is adjusted through the linear bearing 605, the distance interval is equal to the railhead width, and the sensor mounting frame 606 is connected with the two side wall bolts through the locking bolts 2 after adjustment is completed. Of course, the second level sensor may also be fixed by the sensor mount.
Now, the adjustment of the horizontal direction of the probe wheel in this embodiment will be described: in the two laser sensors in this embodiment, when one of the laser sensors detects a track and the other laser sensor does not detect a track, it is determined that the probe wheel is in a deviated state. The horizontal sensor 607 sends an electric signal to the detection software to give an alarm, and sends an adjusting signal to the horizontal driving member 602, the horizontal driving member 602 receives the signal and pushes the horizontal supporting plate 3 to move to one side of the detected steel rail, and when the two laser sensors can not detect the steel rail exactly in the moving process, the detection wheel is aligned to the geometric center of the section of the steel rail, so that the automatic reset of the detection wheel in the horizontal direction is realized. In the present embodiment, the horizontal position of the probe wheel can be adjusted by manually controlling the horizontal driving member 602 before operation.
Referring to fig. 3 and 5, preferably, the probe card further includes an angle adjusting portion, the angle adjusting portion includes an arc-shaped guide 301 fixed on the horizontal support member, an angle support member slidably connected to the arc-shaped guide 301, and an angle driving member 405 for driving the angle support member to adjust the angle along the arc-shaped guide 301, the angle support member is connected to the probe wheel fixing portion 1, and a circle center of a guiding arc of the arc-shaped guide 301 is located at a center position of the probe wheel fixing portion 1 for fixing the probe wheel.
Specifically, the arc guide 301 is an arc guide rail or an arc guide groove, and the arc guide 301 is fixed to both sides of the horizontal support along the angle adjustment direction of the angle support; the angle supporting member is an angle supporting plate 401, and sliding blocks or pulleys which are connected with the arc-shaped guide members 301 in a sliding mode are arranged on two sides of the angle supporting plate 401; the end face of the angle support plate 401 away from the horizontal support plate 3 is connected to the probe wheel fixing part 1. The angle driving member 405 is an electric push rod, a hydraulic push rod, or a pneumatic push rod, an angle adjusting frame 404 is disposed at an end of the horizontal supporting member where the arc-shaped guide member 301 is not disposed, the angle driving member 405 is fixed on the angle adjusting frame 404 and is in driving connection with the angle supporting member, and the angle adjusting frame 404 is used for supporting and pushing an angle of the angle supporting member to adjust.
Referring to fig. 3 and 5, in the present embodiment, the arc-shaped guide 301 is an arc-shaped guide rail or an arc-shaped guide groove, the arc-shaped guide 301 is fixed on two sides of the horizontal support along the angle adjustment direction of the angle support and is located below the sliding pipe 302 of the horizontal support, specifically, the circle center where the arc-shaped guide 301 is located at the center position where the probe wheel fixing portion 1 fixes the probe wheel;
the angle supporting piece is an angle supporting plate 401 and is arranged between the horizontal supporting plate 3 and the probe wheel fixing part 1, and the lower end face of the angle supporting plate 401 is connected with the probe wheel mounting frame of the probe wheel fixing part 1; guide rail sliding blocks 402 or pulleys are arranged at two ends of the angle supporting plate 401, the guide rail sliding blocks 402 or the pulleys are arranged at two ends of the angle supporting plate 401 close to the arc-shaped guide part 301, the guide rail sliding blocks 402 or the pulleys are fixed on the angle supporting plate 401 through sliding block mounting plates 403 and can also be directly connected with the angle supporting plate 401, and the angle supporting plate 401 is in sliding connection with the arc-shaped guide part 301 of the horizontal supporting member through the guide rail sliding blocks 402 or the pulleys;
referring to fig. 5, the end of the horizontal support plate 3 not provided with the sliding rail is provided with an angle adjusting bracket 404, and meanwhile, an angle driving member 405 is installed on the angle adjusting bracket 404; the angle driving member 405 may be an electric push rod, a hydraulic push rod, or a pneumatic push rod, and one end of the angle driving member 405 is a fixed end which is fixedly connected with the angle adjusting frame 404; the other end of the angle driving member 405 is a driving end, and the driving end is in driving connection with the angle supporting plate 401 and used for pushing the angle supporting plate 401; when this embodiment discovers that there is the skew in spy wheel angle of advance and guide rail before detecting a flaw, but angle driving piece 405 of artificial control uses angle adjustment frame 404 to promote angle backup pad 401 for supporting, thereby drive angle supporting piece's guide rail slider 402 or pulley slide on arc guide 301, because spy wheel fixed part 1 links together with angle backup pad 401, consequently, when angle backup pad 401 takes place to slide, and then drive spy wheel fixed part 1, change the angle between spy wheel and the guide rail, thereby change the direction of advance of spy wheel, make spy wheel and guide rail keep the coupling.
Referring to fig. 3 and 5, it is preferable that a vertical adjusting bolt 5 is further included, the angle support plate 401 is connected to the probe wheel fixing part 1 through the vertical adjusting bolt 5, and the vertical adjusting bolt 5 is used to adjust vertical displacement of the probe wheel fixing part 1 and the angle support plate 401.
In the embodiment, the angle supporting plate 401 is connected with the probe wheel mounting frame of the probe wheel fixing part 1 through the vertical adjusting bolt 5, the vertical adjusting rod is connected with the vertical adjusting bolt 5 through the opening of the horizontal supporting plate 3, and after the flaw detection trolley stops working, the vertical adjusting rod is used for lifting the probe wheel fixing part 1, so that the probe wheel is driven to lift; when the flaw detection trolley starts to work, the vertical adjusting rod is used for enabling the detection wheel fixing part 1 to descend, and therefore the detection wheel is driven to descend and is coupled with the track.
Referring to fig. 4, the outer frame includes: the device comprises a main frame 7, a horizontal fixing frame 8, a front frame 9, a square beam main pipe 801 and a guide wheel bracket 10; the main frame 7 is connected with the front frame 9, and the main frame 7 is connected with the horizontal fixing frame 8 through a square beam main pipe 801; the guide wheel bracket 10 is connected with the front frame 9, and the guide wheel bracket 10 is connected with the main frame 7 through a square beam main pipe 801; the horizontal adjusting part, the angle adjusting part and the probe wheel fixing part 1 are all arranged in a space formed by the main frame 7, the horizontal fixing frame 8 and the front frame 9; the horizontal guide is connected with the front frame 9, the horizontal fixing frame 8 and the main frame 7 in sequence.
In this embodiment, the outer frame mainly comprises a main frame 7, a horizontal fixing frame 8 and a front frame 9, the main frame 7 bears main connecting components of this embodiment, and is respectively connected with the front frame 9, the horizontal fixing frame 8 through a square beam main pipe 801, and the guide wheel bracket 10 through the square beam main pipe 801, and in addition, the main frame is connected and locked with a split frame of the flaw detection trolley through two adjustable positioning handles; the front frame 9 is mainly used for being connected with one end of a horizontal guide piece, and the other end of the horizontal guide piece is connected with a horizontal guide mounting seat 12 of the main frame 7 through a horizontal fixing frame 8;
a linear bearing is arranged on the horizontal fixing frame 8, and the horizontal guide piece penetrates through the linear bearing of the horizontal fixing frame 8 to fix the optical axis 11;
the guide wheel bracket 10 is arranged between the front frame 9 and the square beam main pipe 801, and the guide wheel bracket 10 is used for installing the guide wheel 13 and the guide plough 14.
Referring to fig. 3 and 4, specifically, the outer frame is provided with guide wheels 13 and guide plows 14 at both sides of the probe wheel fixing part 1 in the track direction; the guide wheel 13 is used for enabling the flaw detection trolley to cling to the guide rail; the guide plough 14 is used for preventing the flaw detection trolley from derailing and derailing in a harmful space at the turnout of the passage.
In the present embodiment, a similar probe wheel is fixed to the probe wheel fixing part 1, and the guide wheel 13 and the guide plow 14 are adjacently mounted on the guide wheel bracket 10; in the embodiment, two groups of guide wheels 13 and guide plows 14 are respectively positioned in front of and behind the probe wheel fixing part 1; the guide wheel 13 helps the probe wheel to run on the center line of the guide rail; the guide plough 14 can move transversely along the rail along with the flaw detection trolley, so that the guide plough plays a role in blocking, and the conditions of derailing, derailing and the like are prevented.
Referring to fig. 3 and 4, preferably, the outer frame further includes elastic members, one ends of which are connected to the square beam main pipe 801 and the other ends of which are connected to the main frame 7.
In this embodiment, the elastic element is a pre-tightening spring 15, and since the pre-tightening spring 15 is disposed adjacent to the square beam main pipe 801, and the square beam main pipe 801 is connected to the guide wheel bracket 10 and the horizontal fixing frame 8, respectively, the pre-tightening spring 15 can make the rim of the guide wheel 13 have elastic force on the side surface of the guide rail, and in addition, can also provide elastic pressure to the horizontal fixing frame 8; therefore, the pre-tightening spring 15 can reduce the inclination of the guide wheel 13 caused by the snake-shaped running of the flaw detection vehicle or the passing of the arc-shaped track as much as possible, so that the horizontal displacement of the flaw detection vehicle relative to the guide rail is reduced as much as possible, the self-adjustment is convenient to carry out, and more accurate test data is obtained.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (11)
1. The utility model provides a track flaw detector automatic centering and monitoring device which characterized in that includes: the device comprises an outer frame, a horizontal adjusting part, a horizontal detecting part and a probe wheel fixing part, wherein the horizontal adjusting part, the horizontal detecting part and the probe wheel fixing part are arranged on the outer frame;
the horizontal adjusting part comprises a horizontal guide piece fixed on the outer frame, a horizontal supporting piece connected with the horizontal guide piece in a sliding way, and a horizontal driving piece used for driving the horizontal supporting piece to horizontally displace along the horizontal guide piece;
the horizontal detection portion is provided with a horizontal sensor for detecting the horizontal position of the horizontal adjusting portion, the horizontal sensor is in signal connection with a horizontal driving piece, a detection wheel fixing portion is used for fixing a detection wheel of the rail flaw detector, wherein, the horizontal adjusting signal of the horizontal sensor is responded to, the horizontal driving piece drives the horizontal supporting piece to perform horizontal position adjustment so as to drive the detection wheel fixing portion to be automatically centered with the rail.
2. The automatic centering and monitoring device of rail flaw detector according to claim 1, wherein the horizontal guiding member is an optical axis fixed to both sides of the outer frame along the moving direction of the horizontal supporting member;
the horizontal supporting piece is a horizontal supporting plate, and sliding pipelines which are sleeved on the optical axis and are in sliding connection with the optical axis are arranged on two sides of the horizontal supporting plate.
3. The automatic centering and monitoring device of rail flaw detector of claim 2, wherein the horizontal driving member is an electric push rod, a hydraulic push rod or a pneumatic push rod, and the horizontal driving member is fixed on the outer frame and is in driving connection with the horizontal supporting member, so as to push the horizontal supporting member to move horizontally by using the outer frame as a support.
4. The automatic centering and monitoring device of rail flaw detector according to claim 1, wherein the level detection part includes a sensor support fixed to the level support, a sensor bracket detachably connected to the sensor support, and a sensor mounting member for mounting the level sensor.
5. The automatic rail flaw detector centering and monitoring device of claim 4, wherein one end of the sensor bracket is detachably connected to one end of the sensor support member along the traveling direction of the rail flaw detector, the connection point of the sensor bracket and the sensor support member is located in the middle of the end surface of the sensor support member, and the other end of the sensor bracket is fixedly connected to the sensor mounting member.
6. The automatic centering and monitoring device of rail flaw detector of claim 5, wherein the sensor mounting member comprises a bottom plate, and side plates connected with the bottom plate and arranged in parallel with each other, a guide shaft is arranged between the side plates, the guide shaft is sleeved with the level sensor and a linear bearing, the level sensor comprises a first level sensor and a second level sensor, and the linear bearing is used for adjusting the distance between the first level sensor and the second level sensor.
7. The automatic centering and monitoring device for the rail flaw detector according to claim 1, further comprising an angle adjusting portion, wherein the angle adjusting portion comprises an arc-shaped guide fixed on the horizontal support member, an angle support member slidably connected to the arc-shaped guide member, and an angle driving member for driving the angle support member to adjust the angle along the arc-shaped guide member, the angle support member is connected to the probe wheel fixing portion, wherein a circle center of a guiding arc of the arc-shaped guide member is located at a central position of the probe wheel fixed on the probe wheel fixing portion.
8. The automatic centering and monitoring device of rail flaw detector according to claim 7, wherein the arc guide is an arc guide rail or an arc guide groove, and the arc guide is fixed on both sides of the horizontal support along the angle adjustment direction of the angle support;
the angle supporting piece is an angle supporting plate, and sliding blocks or pulleys which are connected with the arc-shaped guide piece in a sliding mode are arranged on two sides of the angle supporting plate; the end face, far away from the horizontal supporting plate, of the angle supporting plate is connected with the probe wheel fixing part.
9. The automatic centering and monitoring device for rail flaw detector of claim 8, wherein the angle driving member is an electric push rod, a hydraulic push rod or a pneumatic push rod, an angle adjusting bracket is disposed at an end of the horizontal supporting member where the arc-shaped guide member is not disposed, the angle driving member is fixed on the angle adjusting bracket and is in driving connection with the angle supporting member, and the angle adjusting bracket is used as a support to push the angle supporting member to adjust the angle.
10. The automatic centering and monitoring device for rail flaw detector according to any one of claims 2 to 9, further comprising a vertical adjusting bolt, wherein the angle support plate is connected to the probe wheel fixing part via the vertical adjusting bolt, and the vertical adjusting bolt is used for adjusting the vertical displacement of the probe wheel fixing part and the angle support plate.
11. The automatic centering and monitoring device of rail flaw detector according to claim 1, wherein the outer frame is provided with a guide wheel and a guide plow at both sides of the probe wheel fixing part along the rail direction;
the guide wheel is used for enabling the flaw detection trolley to cling to the guide rail;
the guide plough is used for preventing the flaw detection trolley from derailing and derailing in a harmful space of the aisle fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010455860.XA CN111595940A (en) | 2020-05-26 | 2020-05-26 | Automatic centering and monitoring device for rail flaw detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010455860.XA CN111595940A (en) | 2020-05-26 | 2020-05-26 | Automatic centering and monitoring device for rail flaw detector |
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| CN111595940A true CN111595940A (en) | 2020-08-28 |
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| CN202010455860.XA Pending CN111595940A (en) | 2020-05-26 | 2020-05-26 | Automatic centering and monitoring device for rail flaw detector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362740A (en) * | 2020-11-27 | 2021-02-12 | 株洲时代电子技术有限公司 | Flaw detection device |
| CN114295721A (en) * | 2021-11-16 | 2022-04-08 | 国能朔黄铁路发展有限责任公司 | Probe wheel pair centering structure, rail flaw detection vehicle and probe wheel pair centering method |
| WO2022141370A1 (en) * | 2020-12-31 | 2022-07-07 | 上海市东方海事工程技术有限公司 | Rail testing system |
-
2020
- 2020-05-26 CN CN202010455860.XA patent/CN111595940A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362740A (en) * | 2020-11-27 | 2021-02-12 | 株洲时代电子技术有限公司 | Flaw detection device |
| WO2022141370A1 (en) * | 2020-12-31 | 2022-07-07 | 上海市东方海事工程技术有限公司 | Rail testing system |
| CN114295721A (en) * | 2021-11-16 | 2022-04-08 | 国能朔黄铁路发展有限责任公司 | Probe wheel pair centering structure, rail flaw detection vehicle and probe wheel pair centering method |
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