CN211603054U

CN211603054U - Probe wheel calibration test bed

Info

Publication number: CN211603054U
Application number: CN202020191170.3U
Authority: CN
Inventors: 马运忠; 张玉华; 熊龙辉; 李培; 钟艳春
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; China State Railway Group Co Ltd; Infrastructure Inspection Institute of CARS; Beijing IMAP Technology Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; China State Railway Group Co Ltd; Infrastructure Inspection Institute of CARS; Beijing IMAP Technology Co Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-09-29
Anticipated expiration: 2030-02-20

Abstract

The utility model provides a visit wheel and mark test bench, this visit wheel and mark test bench includes: the top of the circular turntable is provided with a circular steel rail for calibration, and the steel rail for calibration is provided with manual damage; the base is arranged below the circular turntable; a motor mounted on the base; the lower end of the main shaft is connected with the motor, the upper end of the main shaft is connected with the circular turntable, and the motor drives the circular turntable to rotate through the main shaft; and the probe wheel mounting device is used for bearing a probe wheel to be calibrated and tested so as to enable the probe wheel to be matched with the calibration steel rail. Through the utility model discloses, realized that the spy wheel under the operating mode is detected to higher speed is markd experimentally to reduced and markd the produced interference of vibrations of test bench in the testing process.

Description

Probe wheel calibration test bed

Technical Field

The utility model relates to a rail ultrasonic inspection's technical field especially relates to a visit wheel and mark test bench.

Background

The flaw detection of in-service steel rails is an important measure for ensuring the safe operation of railway and urban rail traffic. CN203793342U discloses a rail flaw detection vehicle, in which a probe wheel is an important detection component of a rail flaw detection trolley, and when the probe wheel moves along a rail, ultrasonic waves for flaw detection are transmitted to the rail, and reflected ultrasonic waves are received.

A plurality of ultrasonic wafers with different angles are arranged in the probe wheel, so that the ultrasonic wafers can be stably transmitted and received at high speed; the installation angle of the ultrasonic wafer directly influences the ultrasonic propagation direction, and the steel rail defect detection effect is determined; in addition, coupling liquid is injected into the probe wheel to ensure that the ultrasonic waves are smoothly transmitted into the steel rail and receive and transmit echo waves.

The ultrasonic high-speed rail flaw detection vehicle usually detects the flaw of the rail at the speed of 80 km/h. Under the working condition that the flaw detection vehicle runs at a high speed, the good overall performance of the detection wheel is the basis for ensuring the ultrasonic high-speed flaw detection. In order to fully evaluate the overall performance of the probe wheel, a calibration test needs to be performed on the probe wheel.

The existing calibration test of the probe wheel mainly has two modes: in the first mode, artificial damage is made on an actual steel rail line, and a flaw detection vehicle drives a detection wheel to move along the steel rail line with the artificial damage so as to calibrate the detection wheel, so that the method occupies the actual steel rail line, occupies more resources and has higher difficulty in implementation; the second mode adopts a test bed manufactured in the laboratory to realize the similar environment of the probe wheel in the actual detection working condition and carry out the calibration test on the probe wheel.

CN104267099B mentions two structural forms of laboratory test stands. In the first structure (refer to CN104267099B description and figure 2), the rail test block is in a straight line and moves along the straight line relative to the probe wheel. In a second form (see CN104267099B description and accompanying fig. 1), the circular rail rotates relative to the probe wheel to simulate the probe wheel moving along the rail.

However, in the first structure, the space of a laboratory is limited, the length of the linear test bed is also limited, and the maximum movement speed of the linear steel rail test block is difficult to reach 80km/h, so that the high-speed detection working condition of the probe wheel cannot be simulated. For the second structural form, the circular ring-shaped test bed mentioned in CN104267099B, in the actual test process, when the circular steel rail rotates to simulate the probe wheel moving along the steel rail, the circular steel rail often vibrates greatly, which is easy to interfere with the calibration test of the probe wheel, and affects the accuracy of the test result.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a survey wheel and mark test bench to the realization is markd the test to the survey wheel under the higher speed detection operating mode, and reduces the produced interference of vibrations of demarcation test bench in the test process.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a visit wheel calibration test bench, include: the top of the circular turntable is provided with a circular steel rail for calibration, and the steel rail for calibration is provided with manual damage; the base is arranged below the circular turntable; a motor mounted on the base; the lower end of the main shaft is connected with the motor, the upper end of the main shaft is connected with the circular turntable, and the motor drives the circular turntable to rotate through the main shaft; and the probe wheel mounting device is used for bearing a probe wheel to be calibrated and tested so as to enable the probe wheel to be matched with the calibration steel rail.

In a preferred embodiment, the motor includes a stator and a rotor, and the rotor is sleeved outside the main shaft.

In a preferred embodiment, an expansion sleeve is arranged between the rotor and the main shaft.

In a preferred embodiment, the stator is fixed to a base; the rotor is mounted to the stator by a bearing.

In a preferred embodiment, the probe wheel mounting device comprises a lifting mechanism and a probe wheel clamping mechanism mounted on the lifting mechanism, the probe wheel clamping mechanism is used for clamping the probe wheel, and the lifting mechanism is used for driving the probe wheel clamping mechanism and the probe wheel to move up and down.

In a preferred embodiment, the probe wheel mounting device includes a horizontal moving mechanism, the lifting mechanism is mounted on the horizontal moving mechanism, and the horizontal moving mechanism is configured to drive the lifting mechanism to move along a radial direction of the main shaft.

In a preferred embodiment, the probe wheel mounting device comprises a fixed seat, and the horizontal moving mechanism is mounted on the fixed seat; the fixing seat deviates from the base.

In a preferred embodiment, the probe wheel calibration test stand comprises a plurality of the probe wheel mounting devices distributed circumferentially about the axis of the main shaft.

In a preferred embodiment, the probe wheel calibration test bed comprises 4 probe wheel mounting devices, and the 4 probe wheel mounting devices are distributed in a square shape.

In a preferred embodiment, the probe wheel calibration test bed comprises a B-display minimum system, the B-display minimum system comprises a control and B-type display device, an upper computer, an ultrasonic emission control and space conversion computer, an ultrasonic emission receiver and an A-type display device which are sequentially connected, and the ultrasonic emission receiver is used for being connected with the probe wheel, providing power and excitation for the probe wheel and receiving ultrasonic signals acquired by the probe wheel.

The utility model discloses a characteristics and advantage are:

mounting a probe wheel to be subjected to a calibration test on a probe wheel mounting device; the circular turntable is driven by the motor to rotate, so that the probe wheel moves relative to the calibration steel rail on the circular turntable, the rotating speed of the circular turntable is increased, the moving speed of the probe wheel relative to the calibration steel rail can be increased, 80km/h can be conveniently achieved, and the high-speed detection working condition is realized.

In this visit wheel calibration test bench, the below of circular carousel is all located to motor and main shaft, and the axis of pivot is the axis of rotation of circular carousel promptly, and the motor directly drives circular carousel rotation through the main shaft, can reduce circular carousel and take place the vibration, improves operating stability, reduces the adverse interference to visiting the calibration test of wheel, is favorable to improving the experimental accuracy of calibration.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described 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 to obtain other drawings without creative efforts.

Fig. 1 is a plan layout view of the probe wheel calibration test stand provided by the present invention;

FIG. 2 is an isometric view of a circular turntable in the probe wheel calibration test stand shown in FIG. 1;

FIG. 3 is a top view of a circular turntable in the probe wheel calibration test stand shown in FIG. 1;

FIG. 4 is a front cross-sectional view of a circular turntable in the probe wheel calibration test stand shown in FIG. 1;

FIG. 5 is a schematic view of a probe wheel mounting arrangement in the probe wheel calibration test stand shown in FIG. 1;

FIG. 6 is a schematic diagram of the Bmin system in the probe wheel calibration stand shown in FIG. 1.

The reference numbers illustrate:

10. a circular turntable; 11. calibrating the steel rail;

20. a base; 30. a main shaft;

40. an electric motor; 41. a stator; 42. a rotor; 43. expanding and tightening the sleeve; 44. a bearing; 45. a screw;

50. a probe wheel mounting device; 51. a probe wheel clamping mechanism; 52. a lifting mechanism; 53. a horizontal movement mechanism; 54. a fixed seat; 55. a control unit; 56. an auxiliary mechanism;

60. a probe wheel; 70. b shows the minimum system.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The inventor finds that in the annular test bed mentioned in CN104267099B, the transmission motor is mounted at the edge of the annular steel rail to drive the annular steel rail to rotate, and in this way, the annular steel rail has a force unbalance load, which easily causes the annular steel rail to vibrate in the rotating process, and affects the normal test of the probe wheel.

The utility model provides a visit wheel and mark test bench, as shown in fig. 1-4, should visit wheel and mark test bench and include: a circular turntable 10, a base 20, a motor 40, a main shaft 30 and at least one probe wheel mounting device 50; the top of the circular turntable 10 is provided with a circular calibration steel rail 11, and the calibration steel rail 11 is provided with artificial damage; the base 20 is arranged below the circular turntable 10; the motor 40 is mounted on the base 20; the lower end of the main shaft 30 is connected with a motor 40, the upper end of the main shaft 30 is connected with the circular turntable 10, and the motor 40 drives the circular turntable 10 to rotate through the main shaft 30; the probe wheel mounting device 50 is used for bearing a probe wheel 60 to be calibrated and tested, so that the probe wheel 60 is matched with the calibration steel rail 11.

Mounting a probe wheel 60 to be calibrated and tested on the probe wheel mounting device 50; the circular turntable 10 is driven by the motor 40 to rotate, so that the probe wheel 60 moves relative to the calibration steel rail 11 on the circular turntable 10, and the moving speed of the probe wheel 60 relative to the calibration steel rail 11 can be increased by increasing the rotating speed of the circular turntable 10, so that the speed can reach 80km/h, and a high-speed detection working condition is realized.

In the probe wheel calibration test bed, the motor 40 and the main shaft 30 are both arranged below the circular turntable 10, the axis of the main shaft 30 is the rotating axis of the circular turntable 10, the motor 40 directly drives the circular turntable 10 to rotate through the main shaft 30, vibration of the circular turntable 10 can be reduced, the running stability is improved, adverse interference on the calibration test of the probe wheel 60 is reduced, and the accuracy of the calibration test is improved.

During the calibration test, an auxiliary mechanism 56 for providing coupling water at the contact surface of the probe wheel 60 and the calibration steel rail 11 is connected to the probe wheel calibration test stand, and the coupling water helps to inject the ultrasonic coupling into the interior of the calibration steel rail 11.

The connection structure of the motor 40 and the spindle 30 may be various in general, for example: the motor 40 is arranged at one side of the main shaft 30, and the transmission between the output shaft of the motor 40 and the main shaft 30 is realized through a belt; alternatively, the motor 40 is mounted below the main shaft 30, and transmission is realized between the output shaft of the motor 40 and the main shaft 30 through a coupling.

In order to reduce the vibration of the circular turntable 10, the inventor improves the integral structure of the spindle 30 and the motor 40: as shown in fig. 4, the motor 40 includes a stator 41 and a rotor 42, the rotor 42 is sleeved outside the main shaft 30, and both the stator 41 and the rotor 42 surround the main shaft 30, so that in the calibration test process, the vibration of the circular turntable 10 is reduced, and the test accuracy and the detection quality are improved. Further, an expansion sleeve 43 is arranged between the rotor 42 and the main shaft 30, so that the gap between the rotor 42 and the main shaft 30 is reduced, the stability of the connection structure is improved, and the vibration of the circular turntable 10 is further reduced.

As shown in fig. 4, the stator 41 is fixed to the base 20; the rotor 42 is mounted to the stator 41 via a bearing 44. The motor 40 is a separate structure, and when it is mounted, the stator 41 is fixed to the base 20, the rotor 42 is fixed to the main shaft 30, and then the rotor 42 is mounted to the stator 41. The probe wheel calibration test bed ensures the reliable and stable operation of the motor 40, reduces the vibration of the circular turntable 10, and ensures that the relative movement speed of the calibration steel rail 11 and the probe wheel 60 can reach 80 km/h; meanwhile, the portable installation and maintenance device has high installation and maintenance portability. Preferably, the stator 41 is fixed to the base by screws 45.

The main shaft 30 can be quenched and tempered by 40Cr to ensure the precision and stability of the main shaft 30. As shown in fig. 2 and 3, the circular turntable 10 may be welded using steel in an effort to reduce the moment of inertia. An upper main shaft bearing is provided between the upper end of the main shaft 30 and the base 20, a lower main shaft bearing is provided between the lower end of the main shaft 30 and the base 20, and the motor 40 is installed between the upper main shaft bearing and the lower main shaft bearing. The base 20 may be made of cast iron, and is capable of absorbing shock and noise. Be equipped with a plurality of hoisting rings on base 20, the hoisting ring is installed around base 20, and is equipped with the certain distance from the bottom of base 20, can effectual improvement hoisting ring's bearing weight and reduce the base size.

As shown in fig. 5, the probe wheel mounting device 50 includes a lifting mechanism 52 and a probe wheel clamping mechanism 51 mounted on the lifting mechanism 52, the probe wheel clamping mechanism 51 is used for clamping the probe wheel 60, the lifting mechanism 52 is used for driving the probe wheel clamping mechanism 51 and the probe wheel 60 to move up and down to lift and drop the probe wheel 60, and the amount of pressing down of the probe wheel 60 relative to the calibration steel rail 11 is adjusted by controlling the lifting displacement.

The probe wheel mounting device 50 comprises a horizontal moving mechanism 53, the lifting mechanism 52 is mounted on the horizontal moving mechanism 53, and the horizontal moving mechanism 53 is used for driving the lifting mechanism 52 to horizontally move along the radial direction of the main shaft 30, so that the probe wheel 60 to be calibrated and tested is centered relative to the calibration steel rail 11, and the centering function of the probe wheel 60 is realized. The lifting mechanism 52 is matched with the horizontal moving mechanism 53, lifting and automatic centering of the probe wheel 60 can be provided as required, more diversification is realized on the actual environment of the high-speed flaw detection vehicle, and the position of the probe wheel 60 can be adjusted in two dimensions.

The probe wheel mounting device 50 comprises a control unit 55, wherein the horizontal moving mechanism 53 and the lifting mechanism 52 are respectively connected with the control unit 55, and the control unit 55 is used for realizing man-machine interaction and controlling the lifting and centering of the probe wheel 60. Manual centering or automatic centering can be adopted. A sensor is arranged to collect the deviation between the probe wheel 60 and the calibration steel rail 11, and the control unit 55 controls the horizontal moving mechanism 53 to move according to the collected sensor so as to realize automatic centering; the sensor adopts high accuracy range finding sensor, and the structural style can have the multiple, for example: a laser sensor or an electromagnetic sensor. Through the control unit 55, the probe wheel 60 is arranged to be automatically centered, so that the probe wheel 60 is always aligned with the center line of the steel rail 11 for calibration, and the center of the rolling contact surface of the probe wheel 60 is aligned with the transverse center of the steel rail tread of the steel rail 11 for calibration; the overall performance state of the probe wheel 60 may be measured when the probe wheel 60 is displaced from the center line of the calibration rail 11 by offsetting the center of the rolling contact surface of the probe wheel 60 from the lateral center of the rail tread and setting the horizontal offset.

As shown in fig. 5, the probe wheel installation device 50 includes a fixing seat 54, a horizontal moving mechanism 53 is installed above the fixing seat 54, a lifting mechanism 52 is installed above the horizontal moving mechanism 53, and a probe wheel clamping mechanism 51 is installed on the lifting mechanism 52, which is beneficial to ensuring the overall stability of the probe wheel installation device 50 and ensuring the position stability of the probe wheel 60. Further, the fixing seat 54 is deviated from the base 20, the fixing seat 54 and the base 20 are two separated base bodies and are respectively fixed on the ground of a laboratory, a certain spacing distance is arranged between the two base bodies, vibration generated when the motor 40 operates can be reduced and transmitted to the probe wheel mounting device 50 and the probe wheel 60, and the accuracy of a calibration test can be guaranteed.

The specific structure of the probe wheel clamping mechanism 51 is matched with the structure of the probe wheel 60 to be subjected to the calibration test, so that the probe wheel 60 is clamped; in some embodiments, the probe wheel clamping mechanism 51 may be configured to mount a probe wheel on a flaw detection vehicle. The lifting mechanism 52 provides a driving force for driving the probe wheel clamping mechanism 51 to move in the vertical direction, and the structure of the lifting mechanism can be various, for example: the driving structure is composed of a motor and a lead screw, or the driving structure is composed of a motor and a rack mechanism; preferably, the lifting mechanism 52 includes a first electric cylinder, the first electric cylinder is arranged along the vertical direction, the probe wheel clamping mechanism 51 is connected to the movable end of the first electric cylinder, and the first electric cylinder drives the probe wheel clamping mechanism 51 to move up and down. The horizontal movement mechanism 53 provides a driving force for driving the elevating mechanism 52 to move in the vertical direction, and the structure thereof may be various, for example: the driving structure is composed of a motor and a lead screw, or the driving structure is composed of a motor and a rack mechanism; preferably, the horizontal moving mechanism 53 includes a second electric cylinder disposed in the horizontal direction, and the lifting mechanism 52 is connected to a movable end of the second electric cylinder, and the second electric cylinder drives the lifting mechanism 52 to move in the horizontal direction.

In the probe wheel calibration test bed, the motor 40 for driving the circular turntable 10 to rotate is arranged under the circular turntable 10, so that vibration is reduced, parts in the space above the circular turntable 10 and the surrounding space are reduced, and obstruction and shielding of installation operation of the probe wheel 60 are reduced. Furthermore, the probe wheel calibration test bed comprises a plurality of probe wheel mounting devices 50 distributed around the circumference of the axis of the main shaft 30, so that a plurality of probe wheels can be simultaneously calibrated, a plurality of probe wheels can be conveniently arranged by a user as required, and the operation efficiency is improved. Preferably, as shown in fig. 1, the probe wheel calibration test bed includes 4 probe wheel mounting devices 50, and the 4 probe wheel mounting devices 50 are distributed in a square shape, and are distributed uniformly and symmetrically, so that the operation is convenient.

The utility model discloses an among the embodiment, visit the wheel and mark test bench and include that B shows minimum system 70, for visiting wheel 60 and provide the power and arouse, and the ultrasonic signal who surveys wheel 60 collection is received, shows ultrasonic wave echo signal through B type picture, and the user of being convenient for confirms that it surveys wheel 60 wholeness can, has alleviated the ultrasonic wave and has visited the wheel and mark the not audio-visual technical problem of inefficiency that exists. As shown in fig. 1 and fig. 6, the B-mode minimum display system 70 includes a control and B-mode display device, an upper computer, an ultrasound transmission control and space conversion computer, an ultrasound transceiver and an a-mode display device, which are connected in sequence, wherein the ultrasound transceiver is used for connecting with the probe wheel 60, providing power and excitation for the probe wheel 60, and receiving the ultrasound signals collected by the probe wheel 60. The control and B-mode display devices may provide a human-machine interface. On one hand, the ultrasonic transmitting and receiving device transmits the ultrasonic signals to an A-type display device for displaying ultrasonic A-type echo signals in real time and monitoring the state of the A-type signals; on the other hand, the signals are sent to an ultrasonic emission control and space conversion computer. The ultrasonic emission control and space conversion computer receives the ultrasonic signals of the ultrasonic emission receiver, performs space conversion on the signals and then sends the signals to the upper computer; and on the other hand, the ultrasonic emission control instruction sent by the upper computer is sent to the ultrasonic emission receiver. The upper computer carries out B-type display processing on the received ultrasonic signals and sends the ultrasonic signals to the control and B-type display device for display by a B-type diagram, so that the ultrasonic signals are conveniently and visually compared with the operation state on the actual flaw detection vehicle, and the overall performance of the detection wheel is determined.

When the calibration test is carried out, the following method can be adopted: installing a probe wheel 60 to be calibrated on a probe wheel clamping mechanism 51, so that the probe wheel 60 falls on a calibration steel rail 11 of the circular turntable 10; determining the amount of depression of the probe wheel 60 by controlling the elevation mechanism 52; then, centering control is performed by the horizontal movement mechanism 53.

After the probe wheel 60 is installed and adjusted, the coupling water of the auxiliary mechanism 56 is opened so that the coupling water is sprayed between the probe wheel 60 and the contact surface of the circular turntable 10. The motor 40 is started to drive the circular turntable 10 to rotate, the circular turntable 10 drives the probe wheel 60 to rotate through friction, and relative movement between the calibration steel rail 11 and the probe wheel 60 is achieved. The relative movement speed may be set to 80 km/h.

And starting the B display minimum system 70, setting a detection wheel and detection parameters through a control and B type display device, sending the parameters to an ultrasonic emission control and space conversion computer through an upper computer, sending the parameters to the detection wheel by the ultrasonic emission control and space conversion computer, and providing power for the detection wheel. Ultrasonic signals can be collected at the moment, and on one hand, the ultrasonic signals are sent to an A-type display device to monitor the state of the A-type signals; on the other hand, ultrasonic signals are sent to an ultrasonic emission control and space conversion computer, after the ultrasonic emission control and space conversion computer processes space conversion, the signals with the space conversion are sent to an upper computer, the upper computer sends the signals to a control and B-type display device, the ultrasonic signals are displayed in a B-type display mode, and the overall performance state of the probe wheel can be visually judged through the number of ultrasonic echo points displayed in the B-type display mode.

The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims

1. A probe wheel calibration test bed is characterized by comprising:

the top of the circular turntable is provided with a circular steel rail for calibration, and the steel rail for calibration is provided with manual damage;

the base is arranged below the circular turntable;

a motor mounted on the base;

the lower end of the main shaft is connected with the motor, the upper end of the main shaft is connected with the circular turntable, and the motor drives the circular turntable to rotate through the main shaft;

and the probe wheel mounting device is used for bearing a probe wheel to be calibrated and tested so as to enable the probe wheel to be matched with the calibration steel rail.

2. The probe wheel calibration test stand of claim 1, wherein the motor comprises a stator and a rotor, and the rotor is sleeved outside the main shaft.

3. The probe wheel calibration test stand of claim 2, wherein an expansion sleeve is arranged between the rotor and the main shaft.

4. The probe wheel calibration test stand of claim 2, wherein the stator is fixed to a base; the rotor is mounted to the stator by a bearing.

5. The probe wheel calibration test bed according to claim 1, wherein the probe wheel mounting device comprises a lifting mechanism and a probe wheel clamping mechanism mounted on the lifting mechanism, the probe wheel clamping mechanism is used for clamping the probe wheel, and the lifting mechanism is used for driving the probe wheel clamping mechanism and the probe wheel to move up and down.

6. The probe wheel calibration test bed of claim 5, wherein the probe wheel mounting device comprises a horizontal moving mechanism, the lifting mechanism is mounted on the horizontal moving mechanism, and the horizontal moving mechanism is used for driving the lifting mechanism to move along the radial direction of the main shaft.

7. The probe wheel calibration test bed of claim 6, wherein the probe wheel mounting device comprises a fixed seat, and the horizontal movement mechanism is mounted on the fixed seat; the fixing seat deviates from the base.

8. The probe wheel calibration test stand of claim 1, comprising a plurality of the probe wheel mounting devices distributed circumferentially about the axis of the main shaft.

9. The probe wheel calibration test stand of claim 8, comprising 4 probe wheel mounting devices, wherein the 4 probe wheel mounting devices are arranged in a square.

10. The probe wheel calibration test bed according to claim 1, wherein the probe wheel calibration test bed comprises a B-display minimum system, the B-display minimum system comprises a control and B-type display device, an upper computer, an ultrasonic emission control and space conversion computer, an ultrasonic emission receiver and an A-type display device which are connected in sequence, the ultrasonic emission receiver is used for being connected with the probe wheel, providing power and excitation for the probe wheel, and receiving ultrasonic signals acquired by the probe wheel.