CN213892500U - Rail tread crack detection vehicle based on alternating current electromagnetic field - Google Patents

Abstract

The invention provides a rail tread crack detection vehicle based on an alternating current electromagnetic field, which comprises a rail, a vehicle body, a chassis module and a detection probe device. The automobile body includes the connector, the oblique support, machine case gland, and a support, the bumper shock absorber, the wheel support, the wheel, the test probe device includes probe and probe anchor clamps, the test probe device is installed in the rectangle spout of automobile body both sides, change test probe device's position, can detect the crackle of rail tread different positions, satisfy different detection demands, machine case module installs in the recess on the automobile body, the symmetric position on support right side has carried out the thickening, be used for balance weight, guarantee the stability of testing process, the wheel inboard is equipped with the rim, prevent that the automobile body from breaking away from the rail at the operation in-process, rim outside shape and rail railhead cooperation, rail and wheel tread rolling contact, be equipped with decelerator device in the automobile body, be used for mitigateing the impact.

Description

Rail tread crack detection vehicle based on alternating current electromagnetic field

Technical Field

The invention relates to the field of steel rail crack detection, in particular to a steel rail tread crack detection vehicle based on an alternating current electromagnetic field.

Background

An Alternating Current Field Measurement (Alternating Current Field Measurement) technology is a novel electromagnetic Field nondestructive testing technology, an excitation magnetic Field is generated through an excitation module in a probe, uniform Alternating Current is induced in a workpiece, the Current causes space magnetic Field distortion when encountering a defect, a detection module in the probe acquires electromagnetic Field information of the distortion above the workpiece and performs further signal conditioning analysis, so that size information capable of reflecting geometrical shape characteristics of the defect can be obtained, and quantitative analysis of the defect is realized. The technology can detect surface cracks, fractures and other defects in the conductive material, saves the process of large-area pre-cleaning of the area to be detected, and does not need to remove the protective paint layer on the surface of the workpiece in advance.

The steel rail is used as a foundation stone of the railway track, and is impacted all the time in the running process of a train, fatigue cracks are easy to generate, the conventional steel rail crack detection vehicle needs to be manually pushed, the detection speed is low, and the detection efficiency is low. The invention provides a rail tread crack detection vehicle for high-speed detection based on an alternating current electromagnetic field detection technology, wherein a towing vehicle drives the rail tread crack detection vehicle to advance, so that the labor is saved, and the detection efficiency is improved.

Disclosure of Invention

The invention aims to design a rail tread crack detection vehicle for high-speed detection by utilizing an alternating current magnetic field detection technology aiming at the defects of the prior art, and the rail tread crack detection vehicle is matched with a detection probe device to realize the rapid detection of rail tread cracks.

The embodiment of the application provides a rail tread crack detection vehicle based on an alternating current electromagnetic field. The steel rail tread crack detection vehicle comprises a steel rail, a vehicle body, a case module and a detection probe device, wherein the vehicle body comprises a connector, an inclined bracket, a case gland, a support, a shock absorber, a wheel support and a wheel, the detection probe device comprises a probe and a probe clamp, the case module is installed in a groove on the vehicle body, the detection probe device is installed in rectangular sliding grooves on two sides of the vehicle body, the support is respectively connected with the wheel support, the shock absorber and the inclined bracket, the connector is respectively connected with the shock absorber and the inclined bracket, the wheel is installed in the groove of the wheel support through a rotating shaft and is fixed on the support together with the wheel support, the wheel and a tread steel rail are in rolling contact, a wheel rim is arranged on the inner side of the wheel, and the shape of the outer side of the wheel rim is matched with the steel rail head.

The support includes major structure, boss hole first, boss hole second and rectangle spout, the major structure left side is equipped with the recess, and the length and the width of recess suit with the size of quick-witted case module, and near recess is equipped with the screw hole, installs quick-witted case gland on the support through the screw, and the symmetric position on major structure right side has carried out the thickening, boss hole first symmetric distribution is in the support both sides for linking bridge and bearing diagonal, boss hole second is located the bottom of support, and diameter and boss hole first are unanimous for linking bridge and bumper shock absorber, rectangle spout both sides are equipped with four blind holes of symmetric distribution, install the wheel support on the support through the bolt, and the centre of rectangle spout is equipped with square through hole, relies on the bolt to install the test probe device on the support.

The shock absorber includes macroaxis, spring and staff, the macroaxis top is equipped with the round hole, through bolted connection shock absorber and support, and the macroaxis opposite side is equipped with the hole, and the aperture is unanimous with the staff diameter, the staff top is equipped with the round hole of equidimension, through bolted connection shock absorber and connector, the hole of staff and macroaxis adopts clearance fit, the spring is used for connecting macroaxis and staff.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the beneficial technical effects that:

(1) the detection method is simple, does not need a coupling agent, and can realize the on-line high-speed measurement of the track

(2) Simple structure, and reduced lifting-off disturbance

(3) Manpower is saved, and rapid detection of steel rail is realized

(4) Simple operation and easy operation

Drawings

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

FIG. 1 is an overall structure diagram of a rail tread crack detection vehicle in the embodiment of the present application

FIG. 2 is a schematic structural diagram of a vehicle body according to an embodiment of the present application

FIG. 3 is a schematic structural diagram of a bracket according to an embodiment of the present application

FIG. 4 is a schematic diagram of an explosive structure of a shock absorber according to an embodiment of the present application

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

The embodiment of the application provides a rail tread crack detection vehicle based on an alternating current electromagnetic field. The rail tread crack detection vehicle comprises a rail 10, a vehicle body 20, a chassis module 30 and a detection probe device 40, wherein the vehicle body 20 comprises a connector 201, an inclined bracket 202, a chassis gland 203, a bracket 204, a shock absorber 205, a wheel bracket 206 and wheels 207, the detection probe device 40 comprises a probe and a probe clamp, the chassis module 30 is installed in a groove on the vehicle body 20, the detection probe device 40 is installed in rectangular sliding grooves 2044 on two sides of the vehicle body 20, the bracket 204 is respectively connected with the wheel bracket 206, the shock absorber 205 and the inclined bracket 202, the connector 201 is respectively connected with the shock absorber 205 and the inclined bracket 202, the wheels 207 are installed in the groove of the wheel bracket 206 through a rotating shaft and are fixed on the bracket 204 together with the wheel bracket 206, the wheels 207 are in rolling contact with the rail 10, the inner side of the wheels 207 is provided with a rim, and the outer side shape of the rim is matched with the rail 10, preventing the car body 20 from falling off the rail 10 during operation.

The support 204 comprises a main body structure 2041, boss holes A2042, boss holes B2043 and a rectangular sliding groove 2044, a groove is arranged on the left side of the main body structure 2041, the length and width of the groove are matched with the size of the chassis module 30, threaded holes are formed near the groove, a chassis gland 203 is installed on the support 204 through screws, the symmetrical position on the right side of the main body structure 2041 is thickened for balancing weight and ensuring the stability of the detection process, the boss holes A2042 are symmetrically distributed on two sides of the support 204 and used for connecting the support 204 with the inclined support 202, the boss holes B2043 are located at the bottom of the support 204, the diameter of the boss holes B is consistent with that of the boss holes A2042 and used for connecting the support 204 with the shock absorber 205, four blind holes are symmetrically distributed on two sides of the rectangular sliding groove 2044, the wheel support 206 is installed on the support 204 through bolts, a square through hole is arranged in the middle of the rectangular sliding groove 2044, and the detection probe device 40 is installed on the support 204 through bolts, by changing the relative position, cracks at different positions on the steel rail tread can be detected.

The shock absorber 205 comprises a large shaft 2051, a spring 2052 and a small shaft 2053, a round hole is formed in the top end of the large shaft 2051, the shock absorber 205 and the support 204 are connected through a bolt, an inner hole is formed in the other side of the large shaft 2051, the diameter of the inner hole is consistent with that of the small shaft 2053, round holes with the same size are formed in the top end of the small shaft 2053, the shock absorber 205 and the connector 201 are connected through the bolt, the inner holes of the small shaft 2053 and the large shaft 2051 are in clearance fit, and the spring 2052 is used for connecting the large shaft 2051 and the small shaft 2053 and plays a role in relieving impact.

Claims (3)

1. The utility model provides a rail tread crack detects car based on alternating current magnetic field which characterized in that: including rail, automobile body, quick-witted case module and test probe device, the automobile body includes connector, bearing diagonal, quick-witted case gland, support, bumper shock absorber, wheel support, wheel, test probe device includes probe and probe anchor clamps, machine case module installs in the recess on the automobile body, test probe device installs in the rectangle spout of automobile body both sides, the support is connected with wheel support, bumper shock absorber, bearing diagonal respectively, the connector is connected with bumper shock absorber, bearing diagonal respectively, the wheel is installed in wheel support recess through the axis of rotation, fixes on the support with the wheel support together, wheel and rail rolling contact, and wheel tread inboard is equipped with the rim, rim outside shape and rail railhead cooperation.

2. A rail tread crack detection vehicle based on an alternating current electromagnetic field as claimed in claim 1, characterized in that: the support includes major structure, boss hole first, boss hole second and rectangle spout, the major structure left side is equipped with the recess, and the length and the width of recess suit with the size of quick-witted case module, and near recess is equipped with the screw hole, installs quick-witted case gland on the support through the screw, and the symmetric position on major structure right side has carried out the thickening, boss hole first symmetric distribution is in the support both sides for linking bridge and bearing diagonal, boss hole second is located the bottom of support, and diameter and boss hole first are unanimous for linking bridge and bumper shock absorber, rectangle spout both sides are equipped with four blind holes of symmetric distribution, install the wheel support on the support through the bolt, and the centre of rectangle spout is equipped with square through hole, relies on the bolt to install the test probe device on the support.

3. A rail tread crack detection vehicle based on an alternating current electromagnetic field as claimed in claim 1, wherein the shock absorber comprises a big shaft, a spring and a small shaft, the top end of the big shaft is provided with a round hole, the shock absorber and the bracket are connected through a bolt, the other side of the big shaft is provided with an inner hole, the diameter of the inner hole is consistent with that of the small shaft, the top end of the small shaft is provided with a round hole with the same size, the shock absorber and the connector are connected through a bolt, the inner holes of the small shaft and the big shaft are in clearance fit, and the spring is used for connecting the big shaft and the small shaft.

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