CN111239260A

CN111239260A - Steel rail flaw detector

Info

Publication number: CN111239260A
Application number: CN202010173952.9A
Authority: CN
Inventors: 熊长生
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-06-05

Abstract

The invention relates to the technical field of traffic detection and discloses a steel rail flaw detector which comprises a frame, wherein a water tank is fixedly arranged on the upper surface of the frame, a support is fixedly arranged in the middle of the upper surface of the water tank, a display is fixedly arranged on the upper surface of the support, wheel carriers are fixedly arranged at the bottoms of two sides of the frame, and a first rotating shaft is movably sleeved at the bottom end of each wheel carrier. This rail flaw detector, through filling the deformation coupling matter that has the high oil of viscosity, install with the cooperation of belt, regard as power at the power wheel, under the drive action of transfer line, drive belt transmission, thereby make the coupling matter can with the lower surface of probe, the upper surface rolling friction of rail, reduce the sliding wear to the rail lower surface, protect the performance of piezoelectric wafer, thereby guarantee that the ultrasonic flaw detector is in the use, piezoelectric wafer is better receiving the piezoelectric effect that the ultrasonic wave that the feedback was returned produced, the pulse voltage who produces enlargies the back, the oscillogram of reality is more accurate on the display.

Description

Steel rail flaw detector

Technical Field

The invention relates to the technical field of traffic detection, in particular to a steel rail flaw detector.

Background

The rail damage is a serious problem in railway track traffic, directly influences the safety and stability of trains, has close relation with transportation cost, selection of rail materials and related design and manufacture, and rails need to support and guide locomotives to run in a specified direction.

The existing ultrasonic flaw detector is a portable industrial nondestructive flaw detector, can quickly, conveniently, nondestructively and accurately detect, position, evaluate and diagnose various defects in a workpiece, is moved to a rail, moves on the rail by using rail wheels, removes sundries on the rail through the matching of a spray head and a hairbrush, detects the cleaned rail through a flaw detection head, directly contacts the flaw detection head with the rail, and reflects data from a display through the reflection of ultrasonic waves.

The flaw detection head of the steel rail flaw detector can be in direct contact with a steel rail, so that a piezoelectric wafer on the surface of the flaw detection head can be damaged, the feedback of pulse voltage is influenced, and display errors are caused.

Disclosure of Invention

The invention provides a steel rail flaw detector which has the advantages of reducing the abrasion of a flaw detection head and more accurate pulse voltage feedback, and solves the problems of larger abrasion of the flaw detection head and inaccurate pulse voltage feedback.

The invention provides the following technical scheme: a steel rail flaw detector comprises a frame, wherein a water tank is fixedly mounted on the upper surface of the frame, a support is fixedly mounted in the middle of the upper surface of the water tank, a display is fixedly mounted on the upper surface of the support, wheel carriers are fixedly mounted at the bottoms of two sides of the frame, a first rotating shaft is movably sleeved at the bottom ends of the wheel carriers, tires are movably sleeved on the back surfaces of the wheel carriers through the first rotating shaft, a probe is fixedly mounted in the middle of the bottom of the frame, steel rails are arranged below the frame, a rail wheel is movably sleeved in the middle of the first rotating shaft, a connecting shaft is fixedly sleeved at the tops of positioning blocks on two sides of the rail wheel, a telescopic sleeve is fixedly sleeved at the upper parts of two sides of the probe, a pull rod is movably sleeved inside the telescopic sleeve, a second helical gear is movably sleeved at the bottom of the pull rod, a first rotating shaft, the upper surface contact in power wheel and rail C groove, the transfer line is installed in the meshing of the upper portion of helical gear one, helical gear two is installed in the meshing of the other end of transfer line, the lower surface contact of probe has the coupling matter, the both sides fixed mounting of coupling matter has the belt, helical gear two and belt activity suit, the inside evenly distributed of belt is provided with the supporting wheel.

Preferably, the inner surfaces of the supporting wheel and the belt are provided with teeth.

Preferably, the coupling medium is filled with oil having high viscosity, and the coupling medium is a deformable rubber.

As preferred, the last fixed surface of water tank installs the battery, the bottom electric wire of battery and the water UNICOM in the water tank, the top UNICOM of water tank one side has the gas-supply pipe, one side fixed mounting of frame has supersonic generator, the bottom of gas-supply pipe and the below fixed mounting who is located supersonic generator have intermittent type shower nozzle, the below of frame one side and the below fixed mounting who is located intermittent type shower nozzle have the ware of striking.

Preferably, a diaphragm is movably mounted at the top of the middle section of the inner hole of the intermittent nozzle, and the ultrasonic generator is correspondingly mounted with the diaphragm.

Preferably, the water tank is filled with an electrolyte, such as sodium hydroxide, simultaneously with the addition of water.

The invention has the following beneficial effects:

this rail flaw detector, through filling the deformation coupling matter that has the high oil of viscosity, install with the cooperation of belt, regard as power at the power wheel, under the drive action of transfer line, drive belt transmission, thereby make the coupling matter can with the lower surface of probe, the upper surface rolling friction of rail, reduce the sliding wear to the rail lower surface, protect the performance of piezoelectric wafer, thereby guarantee that the ultrasonic flaw detector is in the use, piezoelectric wafer is better receiving the piezoelectric effect that the ultrasonic wave that the feedback was returned produced, the pulse voltage who produces enlargies the back, the oscillogram of reality is more accurate on the display.

Drawings

FIG. 1 is a schematic view of the probe of the present invention;

FIG. 2 is a schematic view of the overall front structure of the present invention;

FIG. 3 is a schematic side view of the roller of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 5 is a schematic view of the structure of the intermittent nozzle of the present invention.

In the figure: 1. a frame; 2. a water tank; 3. a support; 4. a display; 5. a wheel carrier; 6. a first rotating shaft; 7. a tire; 8. a probe; 9. a steel rail; 10. a rail wheel; 11. a connecting shaft; 12. a telescopic sleeve; 13. a pull rod; 14. a second rotating shaft; 15. a first bevel gear; 16. a power wheel; 17. a transmission rod; 18. a second bevel gear; 19. coupling medium; 20. a belt; 21. a support wheel; 22. a storage battery; 23. a gas delivery pipe; 24. an ultrasonic generator; 25. intermittent spray heads; 26. a lighter; 27. a diaphragm.

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. 1-5, a rail flaw detector comprises a frame 1, a water tank 2 is fixedly mounted on the upper surface of the frame 1, a bracket 3 is fixedly mounted in the middle of the upper surface of the water tank 2, a display 4 is fixedly mounted on the upper surface of the bracket 3, wheel carriers 5 are fixedly mounted at the bottoms of two sides of the frame 1, a first rotating shaft 6 is movably sleeved at the bottom end of each wheel carrier 5, tires 7 are movably sleeved on the back of each wheel carrier 5 through the first rotating shaft 6, a probe 8 is fixedly mounted at the middle of the bottom of the frame 1, a rail 9 is arranged below the frame 1, a rail wheel 10 is movably sleeved at the middle of each rotating shaft 6, connecting shafts 11 are fixedly sleeved at the tops of positioning blocks at two sides of each rail wheel 10, telescopic sleeves 12 are fixedly sleeved at the upper parts of two sides of the probes 8, a pull rod 13 is movably sleeved inside each telescopic sleeve 12, a second rotating shaft 14, a power wheel 16 is fixedly sleeved at one end of the second rotating shaft 14, which is far away from the pull rod 13, the power wheel 16 is in contact with the upper surface of a C-shaped groove of the steel rail 9, a transmission rod 17 is installed at the upper part of the first helical gear 15 in an engaged manner, a second helical gear 18 is installed at the other end of the transmission rod 17 in an engaged manner, a coupling substance 19 is contacted with the lower surface of the probe 8, belts 20 are fixedly installed at two sides of the coupling substance 19, the second helical gear 18 is movably sleeved with the belts 20, and supporting wheels 21 are.

The inner surfaces of the supporting wheel 21 and the belt 20 are provided with teeth, the rotating speeds of the belt 20 and the power wheel 16 are the same through the arranged teeth, the fact that the belt 20 is driven by the second bevel gear 18 to rotate cannot slip is guaranteed, the rolling speed of the coupling material 19 is the same as the moving speed of the equipment pushed by an operator, the coupling material 19 is guaranteed not to be separated from the probe 8, and the fact that the probe 8 can accurately detect flaws is guaranteed.

Wherein, coupling matter 19 inside is filled with the oil that viscosity is high, and coupling matter 19 belongs to yielding rubber, can fill the pit of rail 9 upper surface, can prevent to produce the space between probe 8 and the rail 9, influences the propagation effect of ultrasonic wave, has promoted the ultrasonic wave's the accuracy of detecting a flaw.

Wherein, the last fixed surface of water tank 2 installs battery 22, the bottom electric wire of battery 22 and the water UNICOM in the water tank 2, the top UNICOM of 2 one sides of water tank has gas-supply pipe 23, one side fixed mounting of frame 1 has supersonic generator 24, the bottom of gas-supply pipe 23 and the below fixed mounting who is located supersonic generator 24 have intermittent type shower nozzle 25, the below of 1 one side of frame and the below fixed mounting who is located intermittent type shower nozzle 25 have sparker 26, clean through the energy that hydrogen explosion produced, replace the abluent mode of watering brush, the energy of explosion is bigger, it is better to clear away the effect.

Wherein, the top movable mounting in intermittent type shower nozzle 25 hole middle section has diaphragm 27, supersonic generator 24 corresponds the installation with diaphragm 27, the vibration that produces through supersonic generator 24 drives diaphragm 27 vibration, make the hydrogen that is the intermittent type formula from intermittent type shower nozzle 25 exhaust emit, under the effect of igniting of sparker 26, make hydrogen be the explosion of intermittent type formula, clean the stone that bonds of rail 9 upper surface, prevent the stone of adhesion, can reflect the ultrasonic wave, the effect of detecting a flaw is influenced, the precision of detecting a flaw is promoted.

Wherein, can add the electrolyte in the water tank 2 when adding water, like sodium hydroxide under the electric current effect of battery 22 for water carries out the electrolysis and produces hydrogen, and hydrogen has the performance of explosion, and because the hydrogen that the electrolysis came out can directly be discharged from gas-supply pipe 23, hydrogen concentration explosion degree is less, and debris can be clear away to the energy that the explosion produced.

The working principle of the steel rail flaw detector is as follows:

the flaw detector is pushed onto a rail, the flaw detector moves on the rail 9 through a rail wheel 10, a coupling medium 19 is placed on the upper surface of the rail 9, a pull rod 13 is pushed to enable a power wheel 16 to be clamped into a C-shaped groove of the rail 9 to be in contact with the upper surface, the power wheel 16 and the rail 9 roll in a friction mode by pushing a frame 1, the rolling power wheel 16 drives a belt 20 to rotate through the cooperation of a first bevel gear 15, a transmission rod 17 and a second bevel gear 18, so that the coupling medium 19 rolls, a probe 8 and the coupling medium 19 roll, the lower surface of the probe 8 is protected, water and electrolyte (sodium hydroxide) are added into a water tank 2, a storage battery 22 is used for electrifying water, hydrogen generated after water electrolysis is discharged through a gas pipe 23 and an intermittent nozzle 25, ultrasonic waves generated by an ultrasonic generator 24 enable a diaphragm 27 in the intermittent nozzle 25 to vibrate, and the vibrating diaphragm 27 enables the discharged hydrogen, the ignition of the igniter 26 causes hydrogen to explode, the surface of the steel rail 9 is cleaned, the intermittent explosion can prevent the fire source from directly guiding the inside of the water tank 2 to explode, the probe 8 emits ultrasonic waves to detect the flaw of the steel rail 9, the reflected ultrasonic waves are subjected to piezoelectric effect through the piezoelectric wafer, and the emitted wave pattern is displayed on the display 4 through amplification processing.

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. A steel rail flaw detector comprises a vehicle frame (1), a water tank (2) is fixedly arranged on the upper surface of the vehicle frame (1), a bracket (3) is fixedly arranged in the middle of the upper surface of the water tank (2), a display (4) is fixedly arranged on the upper surface of the bracket (3), the bottom parts of the two sides of the frame (1) are fixedly provided with wheel carriers (5), the bottom ends of the wheel carriers (5) are movably sleeved with a first rotating shaft (6), the back of the wheel carrier (5) is movably sleeved with a tire (7) through a first rotating shaft (6), a probe (8) is fixedly arranged in the middle of the bottom of the frame (1), a steel rail (9) is arranged below the frame (1), the middle part movable sleeve of pivot (6) is equipped with rail wheel (10), the fixed cover in top of the locating piece of rail wheel (10) both sides is equipped with connecting axle (11), its characterized in that: the probe is characterized in that telescopic sleeves (12) are fixedly sleeved at the upper parts of two sides of the probe (8), a pull rod (13) is movably sleeved inside the telescopic sleeves (12), a rotating shaft II (14) is movably sleeved at the bottom of the pull rod (13), a helical gear I (15) is fixedly sleeved at the middle part of the rotating shaft II (14), a power wheel (16) is fixedly sleeved at one end of the rotating shaft II (14) far away from the pull rod (13), the power wheel (16) is in surface contact with the upper surface of a C-shaped groove of a steel rail (9), a transmission rod (17) is installed at the upper part of the helical gear I (15) in a meshed manner, a helical gear II (18) is installed at the other end of the transmission rod (17) in a meshed manner, a coupling substance (19) is contacted with the lower surface of the probe (8), belts (20) are fixedly installed at two sides of the coupling, supporting wheels (21) are uniformly distributed in the belt (20).

2. A rail flaw detector according to claim 1, wherein: the inner surfaces of the supporting wheel (21) and the belt (20) are provided with teeth.

3. A rail flaw detector according to claim 1, wherein: the coupling medium (19) is filled with oil with high viscosity, and the coupling medium (19) belongs to easily deformable rubber.

4. A rail flaw detector according to claim 1, wherein: the last fixed surface of water tank (2) installs battery (22), the bottom electric wire of battery (22) and the water UNICOM in water tank (2), the top UNICOM of water tank (2) one side has air-supply pipe (23), one side fixed mounting of frame (1) has supersonic generator (24), the bottom of air-supply pipe (23) and the below fixed mounting that is located supersonic generator (24) have intermittent type shower nozzle (25), the below of frame (1) one side and the below fixed mounting that is located intermittent type shower nozzle (25) have sparker (26).

5. A rail flaw detector according to claim 4, wherein: the top movable mounting in intermittent type shower nozzle (25) hole middle section has diaphragm (27), supersonic generator (24) and diaphragm (27) correspond the installation.

6. A rail flaw detector according to claim 1, wherein: the water tank (2) is internally filled with water and simultaneously with the electrolyte, such as sodium hydroxide.