Coupling water supply system of ultrasonic nondestructive testing device for railway vehicle wheels

Abstract

The utility model discloses a coupling water supply system of a railway vehicle wheel ultrasonic nondestructive testing device, which comprises a water tank, and a wheel rotating unit for supporting a wheel and a rim flaw detection unit for detecting flaws of a wheel rim are arranged in the water tank. The wheel can be immersed in the coupling water stored in the water tank for rim flaw detection; the water tank is connected with a water inlet pipe and a water outlet main pipe, the water outlet main pipe is divided into two paths, one path is a hub water supply branch for supplying water to the hub flaw detection unit, and the other path is a spoke water supply branch for supplying water to the spoke flaw detection unit; coupling water sprayed by the hub water supply branch and the spoke water supply branch flows back to the water tank. During flaw detection, the wheel is placed in the water tank. The wheel rim is soaked in the coupling water of the water tank, and flaw detection can be directly carried out without additionally spraying the coupling water. Coupling water for hub flaw detection and spoke flaw detection directly flows back into the water tank, so that the coupling water can be directly recovered without an additional collecting pipeline, and the coupling water is convenient to recycle.

Description

Technical Field

[0001] The utility model relates to a coupling water supply system, in particular to a coupling water supply system for ultrasonic nondestructive testing of rail vehicle wheels. Background Art

[0002] The non-destructive testing equipment for rail vehicle wheels uses an ultrasonic probe to perform ultrasonic testing on the wheel under test. It is necessary to cover the probe with coupling water between the probe and the object under test to test the wheel rim, spoke, and hub separately. During the test, the wheel is placed in a water tank, the water in the water tank submerges the lower rim of the wheel, and the ultrasonic probe is placed near the underwater rim to perform ultrasonic testing on the rim.

[0003] Prior art Chinese patent application CN201620938869.5 discloses a train wheel ultrasonic flaw detection system and a coupling water water supply and drainage device thereof, wherein the coupling water water supply and drainage device comprises: a coupling water tank for storing coupling water; a tread water supply structure connected to the coupling water tank and capable of directing the coupling water to the tread probe; an inner side water supply structure connected to the coupling water tank and capable of directing the coupling water to the first inner side probe and the second inner side probe; a recovery structure for recovering the coupling water; wherein the tread water supply structure comprises: a tread main water pipe connected to the coupling water tank, at least two water branch pipes connected to the tread main water pipe, and the water branch pipes are provided with water spray holes for spraying water to the tread probes.

[0004] In the above-mentioned prior art, coupling water is stored in a special coupling water tank, and when in use, it is led to the probe for spraying, and then recovered by a special recovery structure and discharged, and it cannot be recycled. Utility Model Content

[0005] In view of this, the utility model provides a coupling water supply system for a rail vehicle wheel ultrasonic nondestructive testing device, which is convenient for the recycling of coupling water.

[0006] In order to solve the above technical problems, the technical solution of the utility model is to adopt a coupled water supply system for a rail vehicle wheel ultrasonic non-destructive testing device, including a water tank, in which a wheel rotation unit for supporting the wheel and a rim flaw detection unit for flaw detection of the wheel rim are arranged, so that the wheel can be immersed in the coupled water stored in the water tank for rim flaw detection; the water tank is connected to a water inlet pipe and a water outlet main pipe, and the water outlet main pipe is divided into two routes, one of which is a hub water supply branch for supplying water to the hub flaw detection unit, and the other is a spoke water supply branch for supplying water to the spoke flaw detection unit; the coupled water sprayed by the hub water supply branch and the spoke water supply branch flows back to the water tank.

[0007] As an improvement, the water outlet main pipe is connected to the bottom of the water tank, and a water tank filter is provided at the connection between the water tank and the water outlet main pipe; and a pipeline filter is provided on the water outlet main pipe.

[0008] As a further improvement, the spoke water supply branch includes several spoke water supply sub-circuits in parallel, and the several spoke water supply sub-circuits respectively supply water to several probes in the spoke flaw detection unit; it also includes an emptying sub-circuits I connected in parallel with the spoke water supply sub-circuits; the hub water supply branch includes several hub water supply sub-circuits in parallel, and the several hub water supply sub-circuits respectively supply water to several probes in the hub flaw detection unit; it also includes an emptying sub-circuits II connected in parallel with the hub water supply sub-circuits.

[0009] As another further improvement, manual ball valves are provided on the emptying sub-path I and the emptying sub-path II; and solenoid valves and manual regulating valves are provided on the spoke water supply sub-path and the hub water supply sub-path.

[0010] As an improvement, it also includes an overflow pipe connected to the water outlet main, the overflow pipe outlet leads to the water tank; the overflow pipe is provided with an overflow valve.

[0011] As an improvement, a pressure regulating valve is provided on the water outlet main pipe after the overflow pipe.

[0012] As an improvement, it also includes a purge branch pipe connected to the water outlet main pipe, the purge branch pipe is connected to a purge gas source and is provided with a one-way valve.

[0013] As an improvement, the purge air source includes an air compressor, an oil-water separator, and a filter connected in sequence.

[0014] As an improvement, a two-position three-way valve is provided on the water outlet main pipe in front of the purge branch pipe.

[0015] As an improvement, a high liquid level switch and a low liquid level switch are provided in the water tank; the high liquid level switch and the low liquid level switch are connected to the solenoid valve on the water inlet pipe.

[0016] The utility model is beneficial in that:

[0017] The coupling water supply system with the above structure is designed with a water tank specially used for flaw detection. The wheel is placed in the water tank during flaw detection. The wheel rim is immersed in the coupling water in the water tank, and flaw detection can be performed directly without spraying coupling water. The coupling water for hub flaw detection and spoke flaw detection directly flows back into the water tank, and the coupling water can be directly recovered without additional collection pipelines, which is convenient for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is the principle diagram of the utility model.

[0020] Markings in the figure:

[0021] 1. Solenoid valve; 2. Manual ball valve; 3. Water tank filter; 4. Water tank; 5. Centrifugal water pump; 6. Two-position three-way ball valve; 7. Pipeline filter; 8. Overflow valve; 9. Pressure regulating valve; 10. Solenoid valve; 11. Manual regulating valve; 12. Manual ball valve; 13. Solenoid valve; 14. Manual regulating valve; 15. Solenoid valve; 16. Manual regulating valve; 17. Manual ball valve; 18. Solenoid valve; 19. Manual regulating valve; 20. Check valve; 21. Solenoid valve; 22 , manual ball valve; 23, filter; 24, oil-water separator; 25, air compressor; 100, wheel; 101, spoke flaw detection unit; 102, hub flaw detection unit; 201, water inlet pipe; 202, water outlet main pipe; 203, overflow pipe; 204, purge branch pipe; 205, hub water supply branch; 206, spoke water supply branch; 207, hub water supply sub-circuit; 208, drain sub-circuit II; 209, spoke water supply sub-circuit; 210 drain sub-circuit I. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] like Figure 1 , Figure 2 As shown, the utility model provides a coupling water supply system for a rail vehicle wheel ultrasonic non-destructive testing device, including a water tank 4, wherein the water tank 4 is provided with a wheel rotation unit for supporting a wheel 100 and a rim flaw detection unit for flaw detection of a wheel rim, so that the wheel 100 can be immersed in the coupling water stored in the water tank 4 for rim flaw detection; a water inlet pipe 201 and a water outlet main pipe 202 are connected to the water tank 4, and the water outlet main pipe 202 is divided into two routes, one of which is a hub water supply branch 205 for supplying water to the hub flaw detection unit 102, and the other is a spoke water supply branch 206 for supplying water to the spoke flaw detection unit 101; the coupling water sprayed by the hub water supply branch 205 and the spoke water supply branch 206 flows back to the water tank 4.

[0024] The utility model is designed with a water tank 4 specially used for flaw detection. When flaw detection is performed, the wheel 100 is placed in the water tank 4. The rim of the wheel 100 is immersed in the coupling water in the water tank, and flaw detection can be performed directly without spraying coupling water. The coupling water for hub flaw detection and spoke flaw detection directly flows back into the water tank 4, and the coupling water can be directly recovered without an additional collection pipeline, which is convenient for recycling.

[0025] In order to facilitate water supply, the water outlet pipe 202 is connected to the bottom of the water tank 4, and a water tank filter 3 is provided at the connection between the water tank 4 and the water outlet pipe 202; a pipe filter 7 is provided on the water outlet pipe 202. Impurities in the coupled water can be filtered through the two-point filtration to avoid clogging of the spray port during the recycling process. Of course, it is foreseeable that a centrifugal water pump 5 needs to be provided on the water outlet pipe 202 in order to provide power for the coupled water circulation.

[0026] Since each flaw detection unit includes multiple probes, in order to adapt to the number of probes, the spoke water supply branch 206 includes a number of spoke water supply sub-circuits 209 in parallel, and the several spoke water supply sub-circuits 209 respectively supply water to the several probes in the spoke flaw detection unit 101; it also includes an emptying sub-circuits I210 connected in parallel with the spoke water supply sub-circuits 209; the hub water supply branch 205 includes a number of hub water supply sub-circuits 207 in parallel, and the several hub water supply sub-circuits 207 respectively supply water to the several probes in the hub flaw detection unit 102; it also includes an emptying sub-circuits II208 connected in parallel with the hub water supply sub-circuits 207.

[0027] In this embodiment, there are two hub water supply sub-paths 207 and two spoke water supply sub-paths 209; the drain sub-path I210 and drain sub-path II208 are respectively provided with manual ball valves 12 and manual ball valves 17; the two spoke water supply sub-paths 209 are respectively provided with solenoid valves 10 and manual regulating valves 11, solenoid valves 13 and manual regulating valves 14. The two hub water supply sub-paths 207 are respectively provided with solenoid valves 15 and manual regulating valves 16, solenoid valves 18 and manual regulating valves 19.

[0028] The solenoid valve is used to open and close the water supply sub-circuit, while the manual regulating valve can manually adjust the flow rate according to demand. When the coupling water in the water supply branch needs to be drained, the manual ball valve on the drain sub-circuit can be opened.

[0029] In order to prevent the pipe from rupturing due to excessive pressure in the water outlet main pipe 202, an overflow pipe 203 connected to the water outlet main pipe 202 is also included, and the outlet of the overflow pipe 203 is connected to the water tank 4; an overflow valve 8 is arranged on the overflow pipe 203. When the water pressure in the water outlet main pipe 202 exceeds the preset pressure of the overflow valve 8, the coupling water in the water outlet main pipe 202 will overflow back to the water tank 4.

[0030] In addition, a pressure regulating valve 9 is provided on the water outlet main pipe 202 after the overflow pipe 203 to adjust the water pressure in the entire water outlet main pipe 202 .

[0031] When the temperature of the entire water supply system is below 0° in winter, water is prone to freezing. Therefore, after the equipment operation is completed, the residual water in the pipeline needs to be blown away to prevent the water in the pipeline from freezing and blocking the pipeline. Therefore, this embodiment also includes a purge branch pipe 204 connected to the water outlet main pipe 202, and the purge branch pipe 204 is connected to the purge air source and is provided with a one-way valve 20. The purge air source includes an air compressor 25, an oil-water separator 24, a filter 23, and a manual ball valve 22 connected in sequence. A solenoid valve 21 is also provided behind the purge air source for automatic control.

[0032] The compressed air provided by the air compressor 25 is used to purge the entire water supply system after oil-water separation and filtration. The setting of the one-way valve 20 prevents the coupling water from flowing back.

[0033] A two-position three-way valve 6 is provided on the water outlet main pipe 202 in front of the purge branch pipe 204. The two-position three-way valve 6 has an interface for the water outlet main pipe 202. In an emergency, coupling water can be supplied through the two-position three-way valve 6 without the water tank 4. In addition, the two-position three-way valve 6 needs to be closed when the purge work is performed.

[0034] In this embodiment, a high liquid level switch and a low liquid level switch are provided in the water tank 4; the high liquid level switch and the low liquid level switch are connected to the solenoid valve 1 on the water inlet pipe 201. When the water level is lower than the specified height, the low liquid level switch sends a signal, the solenoid valve 1 on the water inlet pipe 201 opens, and water is added to the water tank 4; when the water level reaches the specified height, the high liquid level switch sends a signal, the solenoid valve 1 on the water inlet pipe 201 closes, and water addition stops. It is foreseeable that a manual ball valve 2 can also be provided on the water inlet pipe 201 for manual switching.

[0035] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rail vehicle wheel ultrasonic nondestructive testing device coupled with a water supply system, characterized in that: It comprises a water tank, in which a wheel rotating unit for supporting a wheel and a rim flaw detection unit for flaw detection of a wheel rim are arranged, so that the wheel can be immersed in the coupling water stored in the water tank for rim flaw detection; a water inlet pipe and a water outlet pipe are connected to the water tank, and the water outlet pipe is divided into two routes, one of which is a hub water supply branch for supplying water to the hub flaw detection unit, and the other is a spoke water supply branch for supplying water to the spoke flaw detection unit; the coupling water sprayed by the hub water supply branch and the spoke water supply branch flows back to the water tank.

2. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 1, characterized in that: The water outlet main pipe is connected to the bottom of the water tank, and a water tank filter is arranged at the connection between the water tank and the water outlet main pipe; and a pipeline filter is arranged on the water outlet main pipe.

3. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 1, characterized in that: The spoke water supply branch includes several spoke water supply sub-circuits in parallel, and the several spoke water supply sub-circuits respectively supply water to several probes in the spoke flaw detection unit; it also includes an emptying sub-circuits I connected in parallel with the spoke water supply sub-circuits; the hub water supply branch includes several hub water supply sub-circuits in parallel, and the several hub water supply sub-circuits respectively supply water to several probes in the hub flaw detection unit; it also includes an emptying sub-circuits II connected in parallel with the hub water supply sub-circuits.

4. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 3, characterized in that: Manual ball valves are arranged on the drain sub-path I and the drain sub-path II; solenoid valves and manual regulating valves are arranged on the spoke water supply sub-path and the hub water supply sub-path.

5. The coupled water supply system for a rail vehicle wheel ultrasonic nondestructive testing device according to claim 1, characterized in that: It also includes an overflow pipe connected to the water outlet main pipe, the overflow pipe outlet leads to the water tank; the overflow pipe is provided with an overflow valve.

6. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 5, characterized in that: A pressure regulating valve is arranged on the water outlet main pipe after the overflow pipe.

7. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 1, characterized in that: It also includes a purge branch pipe connected to the water outlet main pipe, the purge branch pipe is connected to a purge gas source and is provided with a one-way valve.

8. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 7, characterized in that: The purge air source comprises an air compressor, an oil-water separator, and a filter which are connected in sequence.

9. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 7, characterized in that: A two-position three-way valve is arranged on the water outlet main pipe in front of the purge branch pipe.

10. A rail vehicle wheel ultrasonic nondestructive testing device coupled water supply system according to claim 1, characterized in that: A high liquid level switch and a low liquid level switch are arranged in the water tank; the high liquid level switch and the low liquid level switch are connected to the solenoid valve on the water inlet pipe.

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