CN113022642A

CN113022642A - Rail traffic rail nondestructive test equipment

Info

Publication number: CN113022642A
Application number: CN202110334096.5A
Authority: CN
Inventors: 梁玉田
Original assignee: Nanjing Bisheng Chuangyi Technology Co ltd
Current assignee: Nanjing Bisheng Chuangyi Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-06-25

Abstract

The invention discloses rail traffic rail nondestructive inspection equipment in the technical field of rail nondestructive inspection, which comprises a bottom plate, wherein wheels are symmetrically arranged at the lower end of the bottom plate, rails are arranged at the lower ends of the wheels, a counterweight plate is arranged in the center of the bottom plate in a sliding manner, a control box is fixedly arranged on the lower end face of the counterweight plate, first calibration mechanisms are symmetrically and fixedly arranged on the lower end face of the counterweight plate, a support frame is fixedly arranged at the lower end of each first calibration mechanism, second calibration mechanisms are symmetrically and fixedly arranged on the outer end face of the support frame, a detection wheel is rotatably arranged at the central point of the inner; the problem that the steel rail nondestructive inspection equipment deviates from the central line of the steel rail in the running process can be solved through the arrangement.

Description

Rail traffic rail nondestructive test equipment

Technical Field

The invention relates to the technical field of rail nondestructive inspection, in particular to rail traffic rail nondestructive inspection equipment.

Background

With the continuous development of city construction in China, the friction, extrusion, bending and impact actions are caused to the steel rail when a train passes through a steel rail joint, a bend and a turnout in the accelerating and braking processes, and the steel rail is extremely easy to damage under the repeated actions.

In the prior art, the steel rail flaw detection equipment only simply fixes the wheel type probe on the steel rail flaw detection vehicle, so that the wheel type probe changes along with the change of the steel rail in the running process of the steel rail flaw detection vehicle, namely the steel rail changes in size due to manufacturing, bending, abrasion and the like, so that the phenomenon of deviation from the central line of the steel rail occurs, in addition, the bending part of the rail also causes the phenomenon of deviation from the central line of the steel rail, so that the wheel type probe is difficult to accurately detect the damage conditions such as fatigue defects, welding defects and the like in the range of the rail head and the rail waist of the steel rail.

Based on the above, the invention designs a rail traffic steel rail nondestructive inspection device to solve the above problems.

Disclosure of Invention

The invention aims to provide an automatic coating device for an electric wire and cable insulating layer, which solves the problems that in the prior art, a wheel type probe is only simply fixed on a rail flaw detection vehicle, so that the wheel type probe changes the size of a steel rail along with the change of the steel rail in the running process of the rail flaw detection vehicle, namely the steel rail deviates from the central line of the steel rail due to manufacturing, bending, abrasion and the like, and the wheel type probe is difficult to accurately detect the damage conditions such as fatigue defects, welding defects and the like in the range of the head and the web of the steel rail due to the phenomenon that the probe deviates from the central line of the steel rail due to the bending of the rail.

In order to achieve the purpose, the invention provides the following technical scheme: a rail traffic rail nondestructive inspection device comprises a base plate, wherein wheels are symmetrically arranged at the lower end of the base plate, the lower ends of the wheels can be arranged on rails, a counterweight plate is arranged in the center of the base plate in a sliding mode, a control box is fixedly arranged on the lower end face of the counterweight plate, first calibration mechanisms are symmetrically and fixedly arranged on the lower end face of the counterweight plate, a support frame is fixedly arranged at the lower end of each first calibration mechanism, second calibration mechanisms are symmetrically and fixedly arranged on the outer end face of the support frame, a detection wheel is rotatably arranged at the central point of the inner side of the support frame, and a detection machine is arranged inside the detection; due to the change of the steel rail, namely the steel rail changes in size due to manufacturing, bending, abrasion and the like, in order to prevent the phenomenon that steel rail flaw detection equipment deviates from the central line of the steel rail; as a further scheme of the present invention, the second calibration mechanism includes a first pipeline, the first pipeline is fixedly disposed outside the support frame, an upper cover plate is fixedly disposed at a lower end of the first pipeline, the first pipeline penetrates through the upper cover plate, the upper cover plate is rotatably disposed in a calibration wheel, the calibration wheel is made of rubber, a rubber air ring is fixedly disposed at a bottom end of the first pipeline, the rubber air ring is rotatably disposed in the calibration wheel, an air inlet pipe is disposed at a bottom end of the rubber air ring, the air inlet pipe is slidably disposed in a ring groove formed in a bottom end surface of the calibration wheel, and a cylinder mechanism for adjusting the second calibration mechanism is disposed at a bottom end of the calibration wheel; a central shaft is fixedly arranged in an upper end port of the first pipeline, a sealing plate is arranged on the outer side of the circumference of the central shaft in a sliding manner, a first gas spring is fixedly arranged on the outer end face of the sealing plate, the outer end of the first gas spring is fixedly arranged on the inner side of a shell, the shell is fixedly arranged on the inner side wall of a support frame, the outer end face of the sealing plate and the inner end face of the shell are closed spaces, a plurality of gas outlets are formed in the central shaft in the closed spaces, a supporting column is fixedly arranged at one end of the sealing plate towards the central direction of the steel rail, a first push plate is fixedly arranged at the other end face of the supporting column towards the central direction of the steel rail, the first push plate is arranged on the central shaft; when the nondestructive inspection device works, when the nondestructive inspection device operates at a constant speed, gas entering the rubber gas ring enters the central shaft through the first pipeline, then enters the shell through the gas outlet formed in the central shaft, and because the end surface of the outer side of the sealing plate and the end surface of the inner side of the shell are closed spaces, the gas entering at the moment extrudes the sealing plate to slide towards the central direction of the steel rail, meanwhile, the first gas spring is stretched (the first gas spring plays a role in resetting the sealing plate), then the supporting column fixedly connected with the other end of the sealing plate pushes the first push plate to slide towards the central direction of the steel rail (when the first push plate slides towards the central direction of the steel rail to the through hole formed in the through hole plate, the gas begins to exhaust, so that the first push plate is favorable for resetting of the first push plate and preparation for next calibration of the detection wheel is carried out), therefore, the first push plate, so the first push pedal in probe wheel both ends promotes to the probe wheel simultaneously, thereby make the probe wheel when the uniform velocity operation, receive first push pedal continuously intermittent calibration all the time, the effectual rail itself that has prevented is because of making, reasons such as bending and wearing and tearing, the condition that the rail size changes can appear, thereby the phenomenon that takes place skew rail central line takes place, and then can guarantee not produce the deflection about the probe wheel when surveying, improve the coupling degree of probe wheel to the rail face, make the probe wheel remain the central point at the rail all the time, and then be favorable to the comprehensive detection of the detector in the probe wheel to the rail (the direction is shown according to full space figure 1 direction in the text).

The calibration wheel and the groove of the waist of the steel rail generate friction, so that the generated friction force does not influence the use of detection equipment; as a further scheme of the invention, the cylinder mechanism comprises a cylinder, the cylinder is fixedly arranged on the lower end surface of a lower cover plate, the lower cover plate is rotatably arranged in a calibration wheel, a plurality of first inclined blocks are uniformly arranged on the lower end surface of the calibration wheel at equal angles, a sliding plate is arranged in the cylinder in a sliding manner, one end of the sliding plate towards the center direction of the steel rail is fixedly provided with a sliding rod, the other end of the sliding rod is fixedly provided with a second inclined block, the sliding rod is provided with a first spring, the first spring is arranged in the cylinder, and the bottom end of the cylinder is fixedly provided with a one-way air inlet valve; when the nondestructive inspection device works and operates at a constant speed, the calibration wheel generates friction with the groove at the waist of the steel rail at the moment so as to generate autorotation, then the first inclined block fixedly connected with the bottom end surface of the calibrating wheel at equal angle evenly extrudes the second inclined block, at the moment, the second inclined block pushes the sliding rod to slide towards the cylinder, then the sliding plate fixedly connected with the end part of the sliding rod positioned in the cylinder is compressed into the cylinder, meanwhile, the first spring is stretched (the first spring plays a role of resetting the sliding plate), finally, the gas in the cylinder enters the rubber gas ring through the gas inlet pipe, thereby effectively utilizing the friction force generated by the calibration wheel and the steel rail to provide indispensable power for the second calibration mechanism, and then the calibration wheel and the groove of the 3 waists of the steel rail generate friction force, so that the use of the detection equipment is not influenced, and the effect of the detection equipment is promoted.

The wheel type probe is difficult to accurately detect the damage conditions such as fatigue defects, welding defects and the like in the range of the rail head and the rail web of the steel rail due to the bent part of the rail, so that the probe is deviated from the central line of the steel rail due to the bent part of the rail; as a further scheme of the invention, a plurality of extrusion blocks are uniformly and angularly fixed on the inner side wall of the calibration wheel, a baffle is fixedly arranged on the lower end face of the upper cover plate, a push rod is arranged in the baffle in a sliding manner, a semicircular sealing plate is fixedly arranged at the outer side end of the push rod and is arranged in an upper end outlet in the rubber air ring in a sliding manner, a second spring is arranged on the push rod between the baffle and the upper end outlet of the rubber air ring, and a second push plate is fixedly arranged at the end part of the other end of the push rod; the upper end face of the push rod is rotatably provided with a first sliding block, the first sliding block is arranged in a connecting shaft in a sliding mode, the connecting shaft is rotatably arranged on the upper end face of the upper cover plate, and a second sliding block is arranged in the upper end of the connecting shaft in a sliding mode; when the nondestructive inspection device works, when the nondestructive inspection device runs to a curve of a steel rail at a constant speed (if the nondestructive inspection device turns to the right), the calibrating wheel at the outer end of the steel rail is under a larger pressure, then the calibrating wheel at the outer end of the steel rail is under a pressure, then the calibrating wheel at the contact part with the steel rail is compressed into the calibrating wheel, at the moment, the extruding block at the inner wall of the calibrating wheel which is uniformly and fixedly connected at an equal angle pushes the second push plate, then the second push plate pushes the push rod to slide in the baffle, then the semicircular sealing plate fixedly connected with the other end of the push rod slides to the outer side at the inner outlet of the rubber gas ring, and simultaneously the second spring is compressed (the second spring plays a role of resetting for the semicircular sealing plate), so that the outlet at the upper end of the rubber gas ring is wider, the gas in the rubber gas ring can enter the first, at the moment, a first sliding block arranged on the push rod is rotated to drive the connecting shaft to turn around the center, so that a second sliding block connected with the upper end of the connecting shaft in a rotating mode drives the through hole plate to slide towards the center direction of the steel rail in the shell, the through hole in the through hole plate moves towards the center direction of the steel rail, gas in the shell is prevented from leaking through the through hole in the through hole plate, the gas in the shell is further ensured to push the sealing plate, and the first push plate is further favorable for pushing the detection wheel to slide towards the center direction of the steel rail to turn in a larger direction; meanwhile, as the calibrating wheel at the contact part of the calibrating wheel and the steel rail is compressed towards the inside of the calibrating wheel, the rubber air ring is simultaneously extruded by the extrusion block, so that the air in the rubber air ring enters the first pipeline, then the gas enters the shell through the first pipeline, so that the first push plate at the outer end side of the steel rail slides a larger distance towards the center direction of the steel rail, thereby pushing the detection wheel to turn, and meanwhile, the inner calibration wheel bears less pressure, so the inboard first push pedal of rail will receive the probe wheel extrusion this moment to be favorable to the probe wheel to make the probe wheel keep at the central point of rail when turning all the time, be favorable to surveying the railhead of rail and the damage condition such as fatigue defect and welding defect of web within range obtains detecting, and then be favorable to surveying the machine also can be comprehensive when turning to the rail detect.

Because the sealing plate can be deflated when sliding towards the center direction of the steel rail, the detection equipment can stably turn when the steel rail turns; as a further scheme of the invention, when the upper end of the second slider is rotatably provided with a through hole plate, the through hole plate is slidably arranged at the bottom end of the shell and works, and when the semicircular sealing plate fixedly connected with the other end of the push rod slides outwards at the inner outlet of the rubber air ring, the first slider rotatably arranged on the push rod drives the connecting shaft to turn around the center, so that the second slider rotatably connected with the upper end of the connecting shaft drives the through hole plate to slide towards the center direction of the steel rail in the shell, the through hole on the through hole plate moves towards the center direction of the steel rail, and the gas in the shell is prevented from leaking through the through hole on the through hole plate, so that the gas in the shell pushes the sealing plate to a longer distance, and the first push plate is favorable for pushing the detection wheel to slide.

The longitudinal telescopic cylinder applies downward pressure to the detection wheel, so that the detection wheel can not rotate smoothly due to overlarge pressure applied by the longitudinal telescopic cylinder when turning; as a further scheme of the invention, a connecting rod is rotatably arranged on the end face of the outer side of the sealing plate, a supporting point of the connecting rod is rotatably arranged on the inner side wall of the shell, and the upper end of the connecting rod is slidably arranged in the supporting frame; the during operation, when the bend of rail is moved at the uniform velocity to nondestructive inspection equipment (be listed as if turning to the right), and when the closing plate slided to rail center direction, the connecting rod that the closing plate outside end was rotated and is connected this moment takes place the upset round the strong point, thereby connecting rod upper end contact trigger block, trigger block makes vertical telescopic machanism upward movement through the control box after that, thereby reduce the holding down force to the detection wheel, and then be favorable to making the detection wheel turn to fast when the turn, prevent that the detection wheel from leading to unable smooth and easy rotation because of the too big pressure that leads to of vertical telescopic cylinder gave when the turn, thereby lead to the detector in the detection wheel can't detect the rail comprehensively.

The detection equipment cannot be accurately positioned at the central position during preparation due to errors caused by manual installation of the detection equipment, the detection equipment can be positioned at the central position of the steel rail during installation, and meanwhile, the coupling degree between the detection equipment and the steel rail is improved; as a further scheme of the invention, the first calibration mechanism comprises a longitudinal telescopic cylinder, the longitudinal telescopic cylinder is fixedly arranged on the lower end face of the counterweight plate, a transverse telescopic cylinder is fixedly arranged at the lower end of the longitudinal telescopic cylinder, a buffer spring is arranged at the lower end of the transverse telescopic cylinder, a connecting plate is fixedly arranged at the lower end of the buffer spring, a supporting rod is fixedly arranged on the connecting plate in a direction opposite to the center of the steel rail, the supporting rod is fixedly connected with the supporting frame, and trigger blocks are symmetrically arranged at the lower end of the supporting rod; during operation, at first through the manual work with rail nondestructive inspection equipment installation on the rail, the manual work makes vertical telescopic cylinder downstream through control box control after that, make the probe wheel contact rail, then adjust the position of probe wheel through horizontal telescopic cylinder making, finally make the probe wheel be located the central point of rail and put, at last through control box control counterweight plate lapse down makes the probe wheel hug closely the upper surface of rail, thereby be favorable to the detection rail that the detector in the probe wheel can the at utmost, and then effectual promotion detects the accuracy of rail, and simultaneously, horizontal telescopic cylinder lower extreme is equipped with the buffering spring, can effectually make the probe wheel prevent to arouse the change of probe wheel upper and lower position because of the fluctuation of rail at the detection in-process, thereby guaranteed not to produce when surveying and beat, and then improve the degree of coupling of detection wheel pair rail face.

Compared with the prior art, the invention has the beneficial effects that:

1. through the arrangement of the calibration wheel, when the nondestructive inspection equipment runs to a curve of a steel rail at a constant speed, the calibration wheel at the outer end of the steel rail is pressurized to compress the calibration wheel into the calibration wheel, so that an outlet at the upper end of the rubber gas ring is opened more widely through the semicircular sealing plate, and the gas in the rubber gas ring can enter the first pipeline to a greater extent; simultaneously because the calibration wheel of calibration wheel and rail contact site compresses to the calibration wheel is interior, so the rubber gas ring receives the extrusion of extrusion piece simultaneously, thereby make the gas in the rubber gas ring enter into first pipeline, thereby make the rail outside first push pedal of distolateral to the great distance of rail central direction slip, make the detection wheel turn to, simultaneously inboard calibration wheel is owing to the pressure that receives less, so the inboard first push pedal that is located the rail this moment will receive the detection wheel extrusion, thereby be favorable to the detection wheel to make the detection wheel keep the central point at the rail when the turn all the time, and then be favorable to detecting that the machine also can be comprehensive when the turn detects the rail.

2. Through the setting of second aligning gear, can enter into the casing through the air in the cylinder, thereby promote first push pedal and promote the probe wheel to rail central direction, because rail both ends symmetry is equipped with calibration wheel and first push pedal, the first push pedal in probe wheel both ends promotes to the probe wheel simultaneously, thereby make the probe wheel when the uniform velocity operation, receive first push pedal continuously intermittent calibration all the time, effectually prevented that the rail itself because of making, reasons such as bending and wearing and tearing, the condition that the rail size changes can appear, thereby take place the phenomenon emergence of skew rail central line, and then can guarantee that the probe wheel does not produce the deflection about surveying when surveying, improve the coupling degree of surveying wheel to the rail face, make the probe wheel remain the central point at the rail all the time, and then be favorable to the comprehensive detection of the interior detector of probe wheel to the rail.

3. Through the setting of connecting rod, can make nondestructive inspection equipment when moving at the uniform velocity the bend of rail, the upset takes place round the strong point to the connecting rod, through connecting rod upper end contact trigger block, trigger block makes vertical telescopic machanism upward movement through the control box after that, thereby reduce the overdraft to the detection wheel, and then be favorable to making the detection wheel turn to fast when the turn, prevent to lead to the unable smooth and easy rotation of detection wheel because of pressure is too big, thereby lead to the detector in the detection wheel can't carry out comprehensive detection to the rail.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a first calibration mechanism and a second calibration mechanism according to the present invention;

FIG. 3 is a schematic bottom view of a second alignment mechanism according to the present invention;

FIG. 4 is a schematic cross-sectional view of a portion of the probe wheel of the present invention;

FIG. 5 is a schematic cross-sectional view of a second alignment mechanism of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 5 according to the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 5 according to the present invention;

FIG. 8 is an enlarged view of the structure at C of FIG. 5 according to the present invention;

FIG. 9 is an enlarged view of the structure of FIG. 5;

FIG. 10 is an enlarged view of the structure at E in FIG. 5 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a bottom plate 1, wheels 2, steel rails 3, a balance weight plate 4, a control box 5, a support frame 6, a detection wheel 7, a detection machine 8, a first pipeline 9, an upper cover plate 10, a calibration wheel 11, a rubber air ring 12, an air inlet pipe 13, a ring groove 14, a central shaft 15, a sealing plate 16, a first air spring 17, a shell 18, an air outlet 19, a support column 20, a first push plate 21, an air cylinder 22, a lower cover plate 23, a first inclined block 24, a sliding plate 25, a sliding rod 26, a second inclined block 27, a first spring 28, a one-way air inlet valve 29, an extrusion block 30, a baffle plate 31, a push rod 32, a semicircular sealing plate 33, a second spring 34, a second push plate 35, a first sliding block 36, a connecting shaft 37, a second sliding block 38, a through hole plate 39, a connecting rod 40, a longitudinal telescopic cylinder 41, a transverse telescopic cylinder 42, a buffer spring.

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. 1-10, the present invention provides a technical solution: a rail traffic rail nondestructive inspection device comprises a base plate 1, wherein wheels 2 are symmetrically arranged at the lower end of the base plate 1, the lower ends of the wheels 2 can be arranged on a rail 3, a counterweight plate 4 is arranged at the center of the base plate 1 in a sliding manner, a control box 5 is fixedly arranged on the lower end face of the counterweight plate 4, first calibration mechanisms are symmetrically and fixedly arranged on the lower end face of the counterweight plate 4, a support frame 6 is fixedly arranged at the lower end of each first calibration mechanism, second calibration mechanisms are symmetrically and fixedly arranged on the outer end face of the support frame 6, a detection wheel 7 is rotatably arranged at the central point of the inner side of the support frame 6, and a detector 8 is arranged inside the detection wheel 7 (the; due to the change of the steel rail, namely the steel rail changes in size due to manufacturing, bending, abrasion and the like, in order to prevent the phenomenon that steel rail flaw detection equipment deviates from the central line of the steel rail; as a further scheme of the present invention, the second calibration mechanism includes a first pipeline 9, the first pipeline 9 is fixedly disposed outside the support frame 6, an upper cover plate 10 is fixedly disposed at a lower end of the first pipeline 9, the first pipeline 9 penetrates through the upper cover plate 10, the upper cover plate 10 is rotatably disposed in a calibration wheel 11, the calibration wheel 11 is made of rubber, a rubber air ring 12 is fixedly disposed at a bottom end of the first pipeline 9, the rubber air ring 12 is rotatably disposed in the calibration wheel 11, an air inlet pipe 13 is disposed at a bottom end of the rubber air ring 12, the air inlet pipe 13 is slidably disposed in an annular groove 14 formed in a bottom end face of the calibration wheel 11, and an air cylinder 22 mechanism for adjusting the second calibration mechanism is disposed at a bottom end of the calibration wheel 11; a central shaft 15 is fixedly arranged in an upper end port of the first pipeline 9, a sealing plate 16 is arranged on the outer side of the circumference of the central shaft 15 in a sliding manner, a first air spring 17 is fixedly arranged on the outer side end face of the sealing plate 16, the outer side end of the first air spring 17 is fixedly arranged on the inner side of a shell 18, the shell 18 is fixedly arranged on the inner side wall of the support frame 6, the outer side end face of the sealing plate 16 and the inner side end face of the shell 18 are closed spaces, a plurality of air outlets 19 are formed in the central shaft 15 in the closed spaces, a support column 20 is fixedly arranged at one end of the sealing plate 16 towards the center direction of the steel rail 3, a first push plate 21 is fixedly arranged at the other end face of the support column 20, the first push plate 21 is arranged; during operation, when the nondestructive inspection apparatus operates at a constant speed, the gas entering the rubber gas ring 12 enters the central shaft 15 through the first pipeline 9 (see fig. 5 and 7), and then enters the housing 18 through the gas outlet 19 formed in the central shaft 15, because the end surface of the outer side of the sealing plate 16 and the end surface of the inner side of the housing 18 are closed spaces, the gas entering at this time extrudes the sealing plate 16 to slide toward the center of the steel rail 3, and at the same time, the first gas spring 17 stretches (the first gas spring 17 plays a role in resetting the sealing plate 16), and then the supporting column 20 fixedly connected to the other end of the sealing plate 16 pushes the first push plate 21 to slide toward the center of the steel rail 3 (when the first push plate 21 slides toward the center of the steel rail 3 to the through hole formed in the through hole plate 39, the gas starts to be exhausted (see fig. 8), thereby facilitating the resetting of, in preparation for next calibration of the detection wheel 7), so that the first push plate 21 pushes the detection wheel 7 toward the center of the rail 3, since the calibration wheels 11 and the first push plate 21 are symmetrically provided at both ends of the rail 3, the first push plates 21 at both ends of the detection wheel 7 are simultaneously pushed toward the detection wheel 7, so that when the detection wheel 7 operates at a uniform speed, the first push plate 21 is constantly and intermittently calibrated, the phenomenon that the size of the steel rail 3 is changed due to manufacturing, bending, abrasion and the like of the steel rail 3 is effectively prevented, so that the steel rail 3 deviates from the central line of the steel rail 3 is avoided, thereby ensuring that the detection wheel 7 does not deflect left and right during detection, improving the coupling degree of the detection wheel 7 to the surface of the steel rail 3, keeping the detection wheel 7 at the central position of the steel rail 3 all the time, thereby facilitating the overall detection of the rail 3 by the detector 8 in the detection wheel 7 (the direction is shown in full text with reference to fig. 1).

Because the calibrating wheel generates friction with the groove at the waist of the steel rail 3, the use of the detection equipment is not influenced by the generated friction force; as a further scheme of the present invention, the cylinder 22 mechanism includes a cylinder 22, the cylinder 22 is fixedly disposed on the lower end surface of the lower cover plate 23, the lower cover plate 23 is rotatably disposed in the calibration wheel 11, the lower end surface of the calibration wheel 11 is fixedly and uniformly provided with a plurality of first oblique blocks 24 at equal angles, a sliding plate 25 is slidably disposed in the cylinder 22, one end of the sliding plate 25 facing the center direction of the steel rail 3 is fixedly provided with a sliding rod 26, the other end of the sliding rod 26 is fixedly provided with a second oblique block 27, the sliding rod 26 is provided with a first spring 28, the first spring 28 is disposed in the cylinder 22, and the bottom end of the cylinder 22 is fixedly provided with a one; during operation, when the nondestructive inspection device operates at a constant speed, the calibration wheel 11 generates friction with the groove at the waist of the steel rail 3 (see fig. 3, 5 and 10), so as to generate rotation, then the first inclined block 24 fixedly connected with the bottom end face of the calibration wheel 11 at an equal angle uniformly extrudes the second inclined block 27, at this time, the second inclined block 27 pushes the sliding rod 26 to slide towards the cylinder 22, the sliding plate 25 fixedly connected with the end part of the sliding rod 26 positioned in the cylinder 22 compresses towards the cylinder 22, at the same time, the first spring 28 is stretched (the first spring 28 plays a role in resetting for the sliding plate 25), and finally, the gas in the cylinder 22 enters the rubber gas ring 12 through the gas inlet pipe 13, so that the friction force generated by the calibration wheel 11 and the steel rail 3 is effectively utilized to provide indispensable power for the second calibration mechanism, and further, the friction force generated by the groove at the waist of the calibration wheel and the steel rail 3 does not only not affect the use of the detection device, but also the effect of the detection equipment is promoted.

The wheel type probe is difficult to accurately detect the damage conditions such as fatigue defects, welding defects and the like in the range of the rail head and the rail web of the steel rail due to the bent part of the rail, so that the probe is deviated from the central line of the steel rail due to the bent part of the rail; as a further scheme of the invention, a plurality of extrusion blocks 30 are uniformly and angularly fixed on the inner side wall of the calibration wheel 11, a baffle 31 is fixedly arranged on the lower end surface of the upper cover plate 10, a push rod 32 is slidably arranged in the baffle 31, a semicircular sealing plate 33 is fixedly arranged on the outer side end of the push rod 32, the semicircular sealing plate 33 is slidably arranged in an upper end outlet in the rubber air ring 12, a second spring 34 is arranged on the push rod 32 between the baffle 31 and the upper end outlet of the rubber air ring 12, and a second push plate 35 is fixedly arranged at the other end part of the push rod 32; a first sliding block 36 is rotatably arranged on the upper end surface of the push rod 32, the first sliding block 36 is slidably arranged in a connecting shaft 37, the connecting shaft 37 is rotatably arranged on the upper end surface of the upper cover plate 10, and a second sliding block 38 is slidably arranged in the upper end of the connecting shaft 37; when the nondestructive inspection device operates to the curve of the steel rail 3 at a constant speed (if the rail turns to the right) during working, the calibration wheel 11 positioned at the outer end of the steel rail 3 is under a larger pressure, then the calibrating wheel 11 at the outer end of the steel rail 3 is pressed, then the calibrating wheel 11 at the contact part of the steel rail 3 is compressed towards the calibrating wheel 11 (shown by combining with figures 5, 8 and 9), at this time, the extruding block 30 fixedly connected with the inner wall of the calibrating wheel 11 at equal angles uniformly pushes the second push plate 35, then the second push plate 35 pushes the push rod 32 to slide in the baffle 31, then the semi-circular sealing plate 33 fixedly connected with the other end of the push rod 32 slides outwards at the inner outlet of the rubber air ring 12, and simultaneously the second spring 34 is compressed (the second spring 34 plays a role of resetting for the semi-circular sealing plate 33), therefore, the opening of the outlet at the upper end of the rubber gas ring 12 is wider, which is beneficial to the gas in the rubber gas ring 12 to enter the first pipeline 9 to a greater extent; meanwhile, as the calibrating wheel 11 at the contact part of the calibrating wheel 11 and the steel rail 3 is compressed towards the inside of the calibrating wheel 11, the rubber gas ring 12 is simultaneously pressed by the pressing blocks 30, so that the gas in the rubber gas ring 12 enters the first pipe 9, then, the gas enters the housing 18 through the first duct 9, so that the first push plate 21 on the outer end side of the rail 3 slides a large distance in the central direction of the rail 3, thereby pushing the detection wheel 7 to turn, and at the same time, the inner calibration wheel 11 is subjected to less pressure, therefore, the first push plate 21 located on the inner side of the steel rail 3 is extruded by the detection wheel 7, so that the detection wheel 7 can be kept at the central part of the steel rail 3 all the time when the steel rail is turned, the detection of the fatigue defects, the welding defects and other damage conditions in the range of the rail head and the rail web of the steel rail 3 is facilitated, and the detection of the steel rail 3 by the detection machine 8 can be comprehensively performed when the steel rail is turned.

Because the sealing plate can be deflated when sliding towards the center direction of the steel rail 3, the detection equipment can stably turn when the steel rail turns; as a further proposal of the invention, the upper end of the second slide block 38 is rotatably provided with a through hole plate 39, when the through hole plate 39 is arranged at the bottom end of the shell 18 in a sliding way, when the semi-circular sealing plate 33 fixedly connected with the other end of the push rod 32 slides outwards at the inner outlet of the rubber air ring 12, at this time, the first slide block 36 rotatably disposed on the push rod 32 drives the connecting shaft 37 to turn around the center, so that the second slide block 38 rotatably connected to the upper end of the connecting shaft 37 drives the through hole plate 39 to slide in the shell 18 toward the center of the steel rail 3, thereby the through holes on the through hole plate 39 move towards the center direction of the steel rail 3, the gas in the shell 18 is prevented from leaking through the through holes on the through hole plate 39, the gas in the shell 18 is ensured to push the sealing plate 16 to a longer distance, and the first push plate 21 can push the detection wheel 7 to slide towards the center of the steel rail 3 to turn in a larger direction.

In order to prevent the detection wheel 7 from being incapable of smoothly rotating due to overlarge pressure applied by the longitudinal telescopic cylinder 41 when the detection wheel 7 turns due to the downward pressure applied by the longitudinal telescopic cylinder 41 to the detection wheel 7; as a further proposal of the invention, a connecting rod 40 is rotatably arranged on the outer side end face of the sealing plate 16, the supporting point of the connecting rod 40 is rotatably arranged on the inner side wall of the shell 18, and the upper end of the connecting rod 40 is slidably arranged in the supporting frame 6; when the nondestructive inspection device works, when the nondestructive inspection device runs to a curve of the steel rail 3 at a constant speed (such as turning to the right), and when the sealing plate 16 slides towards the center of the steel rail 3 (shown in a combined view of fig. 5 and fig. 6), the outer end of the sealing plate 16 rotates and is connected with the connecting rod 40 to overturn around the supporting point, so that the upper end of the connecting rod 40 contacts with the trigger block 46, then the trigger block 46 enables the longitudinal telescopic mechanism to move upwards through the control box, thereby reducing the downward pressure on the detection wheel 7, further being beneficial to quickly steering the detection wheel 7 when turning, preventing the detection wheel 7 from rotating unsmoothly due to the overlarge pressure given by the longitudinal telescopic cylinder 41 when turning, and further leading the detection machine 8 in the detection wheel 7 to be incapable of comprehensively detecting the steel rail 3.

The detection equipment cannot be accurately positioned at the central position during preparation due to errors caused by manual installation of the detection equipment, the detection equipment can be positioned at the central position of the steel rail during installation, and meanwhile, the coupling degree between the detection equipment and the steel rail is improved; as a further scheme of the present invention, the first calibration mechanism includes a longitudinal telescopic cylinder 41, the longitudinal telescopic cylinder 41 is fixedly disposed on the lower end surface of the counterweight plate 4, a transverse telescopic cylinder 42 is fixedly disposed at the lower end of the longitudinal telescopic cylinder 41, a buffer spring 43 is disposed at the lower end of the transverse telescopic cylinder 42, a connecting plate 44 is fixedly disposed at the lower end of the buffer spring 43, a supporting rod 45 is fixedly disposed at the connecting plate 44 in a direction opposite to the center of the steel rail 3, the supporting rod 45 is fixedly connected with the supporting frame 6, and trigger blocks 46 are symmetrically disposed at the lower end; when the nondestructive inspection device works, firstly, the nondestructive inspection device of the steel rail 3 is installed on the steel rail 3 (shown in a combined figure 1 and a figure 2), then, the longitudinal telescopic cylinder 22 is controlled by a control box to move downwards manually, the detection wheel 7 is contacted with the steel rail 3, then, the position of the detection wheel 7 is adjusted by the transverse telescopic cylinder 22, finally, the detection wheel 7 is positioned at the central position of the steel rail 3, finally, the control box controls the counterweight plate 4 to slide downwards, so that the detection wheel 7 is tightly attached to the upper surface of the steel rail 3, the detection machine 8 in the detection wheel 7 can detect the steel rail 3 to the maximum extent, the accuracy of detecting the steel rail 3 is further effectively improved, meanwhile, the buffer spring 43 is arranged at the lower end of the transverse telescopic cylinder 42, the detection wheel 7 can be effectively prevented from changing the upper position and the lower position of the detection wheel 7 due to the fluctuation of the steel rail 3 in the detection process, and the detection, thereby improving the coupling degree of the detection wheel 7 to the surface of the steel rail 3.

The working principle is as follows: firstly, the rail nondestructive inspection equipment is installed on the rail 3 (shown in the combined figures 1 and 2) manually, then the longitudinal telescopic cylinder 22 is controlled by the control box manually to move downwards, so that the detection wheel 7 contacts the rail 3, then the position of the detection wheel 7 is adjusted by the transverse telescopic cylinder 22, finally the detection wheel 7 is positioned at the central position of the rail 3, and finally the counterweight plate 4 is controlled by the control box to slide downwards, so that the detection wheel 7 is tightly attached to the upper surface of the rail 3, thereby being beneficial to detecting the rail 3 by the detector 8 in the detection wheel 7 to the maximum extent, further effectively improving the accuracy of detecting the rail 3, meanwhile, the lower end of the transverse telescopic cylinder 42 is provided with the buffer spring 43, effectively preventing the detection wheel 7 from changing the upper and lower positions of the detection wheel 7 due to the fluctuation of the rail 3 in the detection process, thereby ensuring that no jump is generated during detection, further improving the coupling degree of the detection wheel 7 to the surface of the steel rail 3; then, when the nondestructive inspection device operates at a constant speed, the calibration wheel 11 generates friction with the groove of the waist of the steel rail 3 (as shown in fig. 3, 5 and 10), so as to generate rotation, then the first inclined block 24 fixedly connected with the bottom end face of the calibration wheel 11 at an equal angle uniformly extrudes the second inclined block 27, at this time, the second inclined block 27 pushes the sliding rod 26 to slide towards the cylinder 22, the sliding plate 25 fixedly connected with the end of the sliding rod 26 positioned in the cylinder 22 compresses towards the cylinder 22, at the same time, the first spring 28 is stretched (the first spring 28 plays a role in resetting for the sliding plate 25), and finally, the gas in the cylinder 22 enters the rubber gas ring 12 through the gas inlet pipe 13, so that the friction force generated by the calibration wheel 11 and the steel rail 3 is effectively utilized to provide indispensable power for the second calibration mechanism, and further, the friction force generated by the calibration wheel and the groove of the waist of the steel rail 3 does not affect the use of the detection device, but also the effect of the detection equipment is promoted; meanwhile, when the nondestructive inspection apparatus operates at a constant speed, the gas entering the rubber gas ring 12 enters the central shaft 15 through the first pipeline 9 (see fig. 5 and 7), then enters the housing 18 through the gas outlet 19 formed in the central shaft 15, because the end surface of the outer side of the sealing plate 16 and the end surface of the inner side of the housing 18 are closed spaces, the gas entering at this time presses the sealing plate 16 to slide toward the center of the steel rail 3, and at the same time, the first gas spring 17 stretches (the first gas spring 17 plays a role in resetting the sealing plate 16), and then the supporting column 20 fixedly connected to the other end of the sealing plate 16 pushes the first push plate 21 to slide toward the center of the steel rail 3 (when the first push plate 21 slides toward the center of the steel rail 3 to the through hole formed in the through hole plate 39, the gas starts to be exhausted (see fig. 8), thereby facilitating the resetting of the first push, the calibration of the detection wheel 7 is prepared for the next time), so that the first push plate 21 pushes the detection wheel 7 towards the center direction of the steel rail 3, and the calibration wheels 11 and the first push plate 21 are symmetrically arranged at the two ends of the steel rail 3, so that the first push plates 21 at the two ends of the detection wheel 7 push the detection wheel 7 at the same time, and the detection wheel 7 is always continuously and intermittently calibrated by the first push plate 21 when running at the uniform speed, thereby effectively preventing the situation that the size of the steel rail 3 changes due to manufacturing, bending, abrasion and the like of the steel rail 3, and further preventing the phenomenon of deviating from the center line of the steel rail 3 from occurring, further ensuring that the detection wheel 7 does not deflect left and right during detection, improving the coupling degree of the detection wheel 7 to the surface of the steel rail 3, enabling the detection wheel 7 to be always kept at the center position of the steel rail 3, and further facilitating the comprehensive detection of the detection; when the nondestructive inspection equipment runs to a curve of the steel rail 3 at a constant speed (if the train turns to the right), the calibrating wheel 11 at the outer end of the steel rail 3 is under a larger pressure, the calibrating wheel 11 at the outer end of the steel rail 3 is under a pressure, the calibrating wheel 11 at the contact part with the steel rail 3 is compressed towards the calibrating wheel 11 (shown in the combined drawings of fig. 5, 8 and 9), the extruding block 30 fixedly connected with the inner wall of the calibrating wheel 11 at an equal angle uniformly pushes the second push plate 35, the second push plate 35 pushes the push rod 32 to slide in the baffle 31, the semicircular closing plate 33 fixedly connected with the other end of the push rod 32 slides outwards at the inner outlet of the rubber air ring 12, and the second spring 34 is compressed (the second spring 34 plays a role in resetting for the semicircular closing plate 33), so that the upper outlet of the rubber air ring 12 is opened more widely, and the air in the rubber air ring 12 can enter the first pipeline 9 to a greater extent (when the semicircular closing plate 33 fixedly connected with the other When the inner outlet of the ring 12 slides outwards, the first slider 36 rotatably arranged on the push rod 32 drives the connecting shaft 37 to turn around the center, so that the second slider 38 rotatably connected to the upper end of the connecting shaft 37 drives the through hole plate 39 to slide towards the center direction of the steel rail 3 in the shell 18, and the through hole on the through hole plate 39 moves towards the center direction of the steel rail 3, thereby preventing the gas in the shell 18 from leaking through the through hole on the through hole plate 39, ensuring that the gas in the shell 18 pushes the sealing plate 16 for a longer distance, and further being beneficial for the first push plate 21 to push the detection wheel 7 to slide towards the center direction of the steel rail 3 to turn in a larger direction); meanwhile, as the calibrating wheel 11 at the contact part of the calibrating wheel 11 and the steel rail 3 is compressed towards the inside of the calibrating wheel 11, the rubber gas ring 12 is simultaneously pressed by the pressing blocks 30, so that the gas in the rubber gas ring 12 enters the first pipe 9, then, the gas enters the housing 18 through the first duct 9, so that the first push plate 21 on the outer end side of the rail 3 slides a large distance in the central direction of the rail 3, thereby pushing the detection wheel 7 to turn, and at the same time, the inner calibration wheel 11 is subjected to less pressure, therefore, the first push plate 21 positioned on the inner side of the steel rail 3 is extruded by the detection wheel 7, so that the detection wheel 7 can be kept at the central part of the steel rail 3 all the time when the detection wheel 7 turns, the detection of the damage conditions such as fatigue defects, welding defects and the like in the range of the rail head and the rail web of the steel rail 3 is facilitated, and the detection of the steel rail 3 by the detector 8 can be comprehensively facilitated when the steel rail 3 turns; meanwhile, when the nondestructive inspection device runs to a curve of the steel rail 3 at a constant speed (for example, turns to the right), and when the sealing plate 16 slides towards the center of the steel rail 3 (as shown in fig. 5 and 6), the connecting rod 40 rotatably connected to the outer end of the sealing plate 16 is turned around the supporting point, so that the upper end of the connecting rod 40 contacts the trigger block 46, and then the trigger block 46 causes the longitudinal telescopic mechanism to move upwards through the control box, thereby reducing the downward pressure on the detection wheel 7, further facilitating the rapid turning of the detection wheel 7 during the turning, and preventing the detection wheel 7 from rotating smoothly due to the excessive pressure given by the longitudinal telescopic cylinder 41 during the turning, so that the detection machine 8 in the detection wheel 7 cannot perform the comprehensive detection on the steel rail 3 (the direction in the text is shown in the full-page fig. 1).

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a rail traffic rail nondestructive test equipment, includes bottom plate (1), its characterized in that: the lower end of the bottom plate (1) is symmetrically provided with wheels (2), the lower ends of the wheels (2) can be arranged on a steel rail (3), the center of the bottom plate (1) is provided with a weight plate (4) in a sliding manner, the lower end face of the weight plate (4) is fixedly provided with a control box (5), the lower end face of the weight plate (4) is symmetrically and fixedly provided with first calibration mechanisms, the lower end of each first calibration mechanism is fixedly provided with a support frame (6), the outer end face of each support frame (6) is symmetrically and fixedly provided with a second calibration mechanism, the central point of the inner side of each support frame (6) is rotatably provided with a detection wheel (7), and a detection machine (8) is arranged inside each detection; the second calibrating mechanism comprises a first pipeline (9), the first pipeline (9) is fixedly arranged on the outer side of the supporting frame (6), an upper cover plate (10) is fixedly arranged at the lower end of the first pipeline (9), the first pipeline (9) penetrates through the upper cover plate (10), the upper cover plate (10) is rotatably arranged in a calibrating wheel (11), the calibrating wheel (11) is made of rubber, a rubber air ring (12) is fixedly arranged at the end part of the bottom end of the first pipeline (9), the rubber air ring (12) is rotatably arranged in the calibrating wheel (11), an air inlet pipe (13) is arranged at the bottom end of the rubber air ring (12), the air inlet pipe (13) is slidably arranged in an annular groove (14) formed in the bottom end face of the calibrating wheel (11), and an air cylinder (22) mechanism for adjusting the second calibrating mechanism is arranged at the bottom end of the calibrating wheel (11); a central shaft (15) is fixedly arranged in an upper end port of the first pipeline (9), a sealing plate (16) is arranged on the outer side of the circumference of the central shaft (15) in a sliding manner, a first air spring (17) is fixedly arranged on the outer side end face of the sealing plate (16), the outer side end of the first air spring (17) is fixedly arranged on the inner side of a shell (18), the shell (18) is fixedly arranged on the inner side wall of a support frame (6), the outer side end face of the sealing plate (16) and the inner side end face of the shell (18) are closed spaces, a plurality of air outlets (19) are formed in the central shaft (15) positioned in the closed spaces, a support column (20) is fixedly arranged at one end of the sealing plate (16) towards the center direction of the steel rail (3), a first push plate (21) is fixedly arranged at the other end face of the support column (20, be equipped with between two first push pedal (21) and survey wheel (7), survey wheel (7) and rotate and establish center pin (15) central end position.

2. The nondestructive inspection apparatus for a steel rail traffic steel rail according to claim 1, characterized in that: cylinder (22) mechanism includes cylinder (22), cylinder (22) are fixed to be established terminal surface under apron (23) down, apron (23) rotate down and are established in calibration wheel (11), fixed equidistance of terminal surface evenly is equipped with a plurality of first sloping blocks (24) under calibration wheel (11), it is equipped with sliding plate (25) to slide in cylinder (22), sliding plate (25) are fixed to the one end of rail (3) central direction and are equipped with slide bar (26), slide bar (26) other end is fixed and is equipped with second sloping block (27), be equipped with first spring (28) on slide bar (26), just establish first spring (28) inside cylinder (22), cylinder (22) bottom mounting is equipped with one-way admission valve (29).

3. The nondestructive inspection apparatus for a steel rail traffic steel rail according to claim 2, characterized in that: a plurality of extrusion blocks (30) are uniformly and fixedly arranged on the inner side wall of the calibration wheel (11) at equal angles, a baffle (31) is fixedly arranged on the lower end face of the upper cover plate (10), a push rod (32) is arranged in the baffle (31) in a sliding manner, a semicircular sealing plate (33) is fixedly arranged on the outer side end of the push rod (32), the semicircular sealing plate (33) is arranged in an upper end outlet in the rubber gas ring (12) in a sliding manner, a second spring (34) is arranged on the push rod (32) between the baffle (31) and the upper end outlet of the rubber gas ring (12), and a second push plate (35) is fixedly arranged at the end part of the other end of the push rod (32; the upper end face of the push rod (32) is rotatably provided with a first sliding block (36), the first sliding block (36) is slidably arranged in a connecting shaft (37), the connecting shaft (37) is rotatably arranged on the upper end face of the upper cover plate (10), and a second sliding block (38) is slidably arranged inside the upper end of the connecting shaft (37).

4. The nondestructive inspection apparatus for a steel rail traffic steel rail according to claim 3, characterized in that: the upper end of the second sliding block (38) is rotatably provided with a through hole plate (39), and the through hole plate (39) is slidably arranged at the bottom end of the shell (18).

5. The nondestructive inspection apparatus for a steel rail traffic steel rail according to claim 4, characterized in that: the sealing plate is characterized in that a connecting rod (40) is rotatably arranged on the end face of the outer side of the sealing plate (16), a supporting point of the connecting rod (40) is rotatably arranged on the inner side wall of the shell (18), and the upper end of the connecting rod (40) is slidably arranged in the supporting frame (6).

6. A rail traffic steel rail nondestructive inspection apparatus according to claim 5, characterized in that: first aligning gear includes vertical telescoping cylinder (41), terminal surface under weight plate (4) is established to vertical telescoping cylinder (41) fixed, vertical telescoping cylinder (41) lower extreme is fixed and is equipped with horizontal telescoping cylinder (42), horizontal telescoping cylinder (42) lower extreme is equipped with buffering spring (43), buffering spring (43) lower extreme is fixed and is equipped with connecting plate (44), connecting plate (44) are fixed to be equipped with bracing piece (45) to rail (3) center opposite direction, bracing piece (45) with support frame (6) fixed connection, bracing piece (45) lower extreme symmetry is equipped with trigger block (46).