Locomotive wheel flaw detection device

Abstract

The present invention discloses a locomotive wheel flaw detection device, comprising a main body and a flaw detection work platform. The main body includes a spraying device and a controller. The spraying device is used to spray the wheel tread with coupled water. The flaw detection work platform is mounted on the main body and is slidable along the height and width of the main body. The flaw detection work platform includes a probe assembly, a rotating device, a cylinder, and a telescopic rod connected to the cylinder. The telescopic rod is used to lift the wheel, and the rotating device is used to drive the wheel to rotate. The probe assembly includes a detection surface that is adapted to contact the wheel tread. The cylinder, probe assembly, rotating device, and spraying device are all communicatively connected to the controller. The locomotive wheel flaw detection device provided by the present invention reduces operator labor intensity, improves detection efficiency, and enhances operational convenience.

Description

Technical Field

[0001] The present invention relates to the technical field of flaw detection, and more particularly to a locomotive wheel flaw detection device. Background Art

[0002] During the service of locomotives, the rims, treads, flanges and other parts are prone to wear, especially circumferential rim cracks. In order to ensure the safe operation of railway locomotive wheels, ultrasonic flaw detection of wheels is an extremely important key link in locomotive maintenance.

[0003] In the prior art, two methods are generally used to perform flaw detection on wheel treads: manual inspection by flaw detection workers and automated flaw detection equipment installed in trenches. The disadvantages are: (1) Manual ultrasonic flaw detection is time-consuming and labor-intensive. The flaw detection operation of a single locomotive requires the cooperation of 3 to 4 people and takes 2 to 3 hours to complete the inspection. There are problems such as low efficiency and high labor intensity. (2) The automated flaw detection equipment installed in trenches requires the locomotive operation department to cooperate with the shunting operation (the vehicles are rotated to the inspection position one by one) before the operation. The locomotive to be inspected is transferred to the track equipped with equipment before the flaw detection can be carried out. For units with a large number of locomotives, the operation is inconvenient. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a locomotive wheel flaw detection device to reduce the labor intensity of operators, improve detection efficiency, and enhance the convenience of implementation of operations.

[0005] Based on the above-mentioned purpose, the present invention provides a locomotive wheel flaw detection device, including a main body and a flaw detection work platform, wherein: the main body includes a spraying device and a controller, and the spraying device is used to couple water spray to the tread of the wheel; the flaw detection work platform is installed on the main body and can be slidably arranged along the height and width directions of the main body. The flaw detection work platform includes a probe group, a rotating device, a cylinder body and a telescopic rod driven by the cylinder body, the telescopic rod is used to lift the wheel, the rotating device is used to drive the wheel to rotate, the probe group includes a detection surface, and the detection surface is used to fit the tread of the wheel. The cylinder body, the probe group, the rotating device and the spraying device are all communicatively connected to the controller.

[0006] Optionally, the main vehicle body also includes a main body bottom plate, a first front panel, a second front panel, a first rear panel, a second rear panel, a first sliding sleeve, a second sliding sleeve, a first vertical guide column, a second vertical guide column, a first mounting seat, a second mounting seat, a first motor, and a matching rack and gear. The flaw detection work platform also includes a flaw detection bottom plate, the first rear panel and the second rear panel are relatively arranged and mounted on the main body bottom plate along the width direction of the main vehicle body, the first sliding sleeve is mounted on the first rear panel, the second sliding sleeve is mounted on the second rear panel, the first sliding sleeve is provided with a first sliding hole, the second sliding sleeve is provided with a second sliding hole, the first mounting seat is mounted on the top end of the first vertical guide column, the second mounting seat is mounted on the top end of the second vertical guide column, the first vertical guide column is passed through the first sliding hole and can be slidably arranged along the height direction of the main vehicle body, and the second vertical guide column is passed through the second sliding hole and can be slidably arranged along the height direction of the main vehicle body The cam is mounted on a top surface of the first frame and the bottom surface of the second frame is mounted on a top surface of the second frame, and the cam is mounted on a bottom surface of the second frame.

[0007] Optionally, the flaw detection work platform also includes a tow rod, a horizontal guide column, a first guide column fixing seat, a second guide column fixing seat, and a first linear push rod motor, the bottom end of the first front panel is mounted on the first guide column fixing seat, the bottom end of the second front panel is mounted on the second guide column fixing seat, a first through hole is provided in the first guide column fixing seat, and a second through hole is provided in the second guide column fixing seat, so that the horizontal guide column can be slidably arranged along the width direction of the main vehicle body; one end of the tow rod is mounted on the flaw detection base plate, the other end of the tow rod is mounted on the horizontal guide column, one end of the first linear push rod motor is mounted on the flaw detection base plate, the other end of the first linear push rod motor is mounted on the second front panel, and the first linear push rod motor is retractable along the width direction of the main vehicle body to drive the flaw detection work platform to be slidably arranged along the width direction of the main vehicle body.

[0008] Optionally, the rotating device includes a friction wheel, a second motor, a support, a second linear push rod motor, a lever, a support shaft, and a spring sleeve. The spring sleeve includes a push rod, a first spring and a shell. The shell is sleeved on the outside of the push rod and is slidable along the push rod. The push rod includes a front end and a rear end that are relatively set. The front end is installed on the support, and the rear end is installed on one end of the first spring. The other end of the first spring is fixed on the end surface of the shell facing away from the push rod. The lever includes a first end and a second end that are relatively set. The support shaft passes through the lever and is rotatably installed on the flaw detector. On the base plate, the friction wheel is mounted on the support, and the support is slidably arranged along the length direction of the flaw detection work platform. The output shaft of the second motor is connected to the rotating shaft of the friction wheel to drive the friction wheel to rotate. One end of the second linear push rod motor is mounted on the flaw detection base plate, the other end of the second linear push rod motor is mounted on the first end, and the second end is mounted on one end of the housing at the push rod. The second linear push rod motor is telescopically arranged along the length direction of the flaw detection work platform to drive the support and the friction wheel to be slidably arranged along the length direction of the flaw detection work platform.

[0009] Optionally, the probe group includes a connecting seat, a first guide rail, a second guide rail, a third linear push rod motor, a fourth linear push rod motor, a swing arm, a connecting rod, a first rotating shaft, a front vertical plate, a rear vertical plate, a probe and a third motor. The connecting seat includes a connecting surface and a mounting surface arranged back to back. The first guide rail and the second guide rail are cross-shaped and staggered on the mounting surface. The third linear push rod motor drives the connecting seat to be slidably arranged on the first guide rail along the width direction of the flaw detection work platform. The fourth linear push rod motor drives the connecting seat to be slidably arranged on the second guide rail along the length direction of the flaw detection work platform. The front vertical plate and the rear vertical plate are relatively arranged and installed on the connecting surface, the first rotating shaft passes through the front vertical plate, the bottom of the swing arm, and the rear vertical plate and is fixed to the swing arm, and both ends of the first rotating shaft can be rotatably installed in the front vertical plate and the rear vertical plate, the third motor drives the first rotating shaft and the swing arm to rotate together, the connecting rod includes a connecting end and a mounting end, the connecting end is equipped with the probe, and the mounting end is rotatably installed on the top of the swing arm, the third motor, the third linear push rod motor, the fourth linear push rod motor and the probe are all communicatively connected to the controller.

[0010] Optionally, the probe group also includes a first travel switch, a second travel switch, a large gear, a matching small gear and a small rack. The output shaft of the third motor drives the small gear to rotate, and the small gear is engaged with the large gear. The first rotating shaft is installed on the axle of the large gear so that the third motor drives the first rotating shaft and the swing arm to rotate together; a first stop block and a second stop block are provided at both ends of the small rack, and the small rack can be slidably arranged along the width direction of the flaw detection work platform. When the small rack moves to the two ends respectively, the first stop block triggers the first travel switch or the second stop block triggers the second travel switch. The first travel switch and the second travel switch are both communicatively connected to the controller.

[0011] Optionally, the probe group also includes a planetary gear, a second rotating shaft, a third rotating shaft, a first sprocket, a second sprocket and a first chain used in conjunction with the first rotating shaft, the second rotating shaft and the third rotating shaft are all arranged in parallel, the planetary gear includes a first meshing gear and a second meshing gear that are meshed with each other, the second sprocket is installed on the top of the swing arm, the second sprocket is installed on the third rotating shaft, and the third rotating shaft is arranged in the mounting end, the first meshing gear is also installed on the first rotating shaft, the second meshing gear and the first sprocket are installed on the second rotating shaft, the second rotating shaft is rotatably installed on the swing arm, the two ends of the first chain are respectively wrapped around the first sprocket and the second sprocket, and the third motor drives the first rotating shaft, the second rotating shaft and the third rotating shaft to rotate, so as to drive the connecting rod and the probe to rotate together.

[0012] Optionally, the probe group further includes an arc-shaped mounting bracket and a plurality of probe units, and the plurality of probe units are sequentially mounted on the arc-shaped mounting bracket along the length direction of the arc-shaped mounting bracket, and each of the probe units is provided with a second spring and the probe, and there are also multiple detection surfaces, and each of the probes is provided with a detection surface, and the deformation direction of each second spring is arranged perpendicular to the corresponding detection surface.

[0013] Optionally, the vehicle body also includes a running wheel, a running motor with a differential, a driving wheel, a handle, a third sprocket, a fourth sprocket and a second chain used in conjunction with the running wheel, the wheel surface of the driving wheel is attached to the wheel surface of the running wheel, the two ends of the second chain are wrapped around and installed on the third sprocket and the fourth sprocket, the running motor drives the third sprocket, the fourth sprocket and the second chain and the driving wheel to rotate, so as to drive the running wheel to rotate and move, and the running motor is communicatively connected to the controller.

[0014] Optionally, the probe is an ultrasonic probe, an encoder is provided on the arc-shaped mounting bracket, and the encoder is communicatively connected to the controller.

[0015] Optionally, the spraying device includes a water tank, a water pump, a fourth motor and a water pipe, the water pump sprays the coupled water in the water tank onto the tread of the wheel through the water pipe, and the fourth motor is communicatively connected to the controller.

[0016] Optionally, a mounting hole is provided on the flaw detection base plate, the wheel includes an axle box, the cylinder body is installed in the mounting hole, and the distance from the cylinder body to the ground is smaller than the distance from the flaw detection base plate to the ground, the telescopic rod is telescoped toward or away from the axle box, and the telescopic rod lifts the wheel by lifting the axle box, and the telescopic rod is detachably mounted on the cylinder body.

[0017] The locomotive wheel flaw detection device provided by the present invention includes a main body and a flaw detection work platform. The flaw detection work platform can be slidably arranged along the height and width directions of the main body, so as to facilitate the adjustment of the relative position between the flaw detection work platform and the wheel tread. When the flaw detection work platform drives the telescopic rod to move to the wheel, the telescopic rod is driven to extend through the cylinder body, thereby lifting the wheel, and then the detection surface on the probe group is attached to the wheel tread. At this time, the controller controls the rotating device to drive the wheel to rotate and the spraying device to couple the water spray to the wheel tread, thereby performing circumferential detection of the wheel tread. The locomotive wheel flaw detection device provided by the present invention reduces the labor intensity of the operator, improves the detection efficiency, and reduces the process of coordinating the shunting before the operation, thereby improving the convenience of implementing the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which will help to understand the objects and advantages of the present invention.

[0019] Figure 1 A schematic structural diagram of a locomotive wheel flaw detection device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic structural diagram of a locomotive wheel flaw detection device in accordance with an embodiment of the present invention, in which a detection surface is attached to the tread of a wheel;

[0021] Figure 3 A schematic diagram of the partial structure of a locomotive wheel flaw detection device according to an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of a rotating device in a locomotive wheel flaw detection device according to an embodiment of the present invention;

[0023] Figure 5 Schematic diagram of the structure of the probe group in the locomotive wheel flaw detection device according to one embodiment of the present invention;

[0024] Figure 6 Schematic diagram of the installation structure of the swing arm in the locomotive wheel flaw detection device according to one embodiment of the present invention;

[0025] Figure 7 This is a schematic structural diagram of a connecting seat, a first guide rail, and a second guide rail in a locomotive wheel flaw detection device according to an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of a locomotive wheel flaw detection device in an embodiment of the present invention in which a telescopic rod lifts up the wheel;

[0027] Figure 9This is a schematic structural diagram of a spring sleeve in a locomotive wheel flaw detection device according to an embodiment of the present invention;

[0028] Figure 10 This is a structural schematic diagram of a locomotive wheel flaw detection device according to an embodiment of the present invention, in which a probe unit is mounted on an arc-shaped mounting bracket;

[0029] Figure 11 Schematic diagram of the structure of the probe unit in a locomotive wheel flaw detection device according to one embodiment of the present invention;

[0030] Figure 12 The figure is a schematic structural diagram of a running wheel and a driving wheel in a locomotive wheel flaw detection device according to an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1: Main vehicle body; 2: NDT work platform; 3: Handle; 4: Wheel tread; 5: Probe assembly; 6: Rotating device; 7: Telescopic rod; 8: Drag rod; 9: Horizontal guide post; 10: First guide post fixing seat; 11: Second guide post fixing seat; 12: First linear actuator motor; 13: First front panel; 14: First sprocket; 15: Testing surface; 16: Second rear panel; 17: Second sliding sleeve; 18: Second vertical guide post; 19: Second mounting seat; 20: First motor; 21: Gear; 22: Rack; 23: Friction wheel; 24: Support; 25: Second linear actuator motor; 26: Lever; 27: Support shaft; 28: Spring sleeve; 29: Push rod; 30: First spring 31: Housing; 32: Connecting seat; 33: First guide rail; 34: Second guide rail; 35: Third linear actuator motor; 36: Fourth linear actuator motor; 37: Swing arm; 38: Connecting rod; 39: First rotating shaft; 40: Second rotating shaft; 41: Second sprocket; 42: Front vertical plate; 43: Probe; 44: Third motor; 45: Connecting end; 46: Mounting end; 47: First travel switch; 48: Small rack; 49: Arc-shaped mounting bracket; 50: Probe unit; 51: Second spring; 52: Traveling wheel; 53: Traveling motor; 54: Driving wheel; 55: First sprocket; 56: Second chain; 57: Axle box; 58: Encoder; 59: Small gear; 60: Large gear. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0034] like Figure 1 and Figure 2As shown, the locomotive wheel flaw detection device provided by the present invention includes a main body 1 and a flaw detection work platform 2, wherein: the main body 1 includes a spraying device and a controller, the spraying device is used to couple water spray to the tread 4 of the wheel; the flaw detection work platform 2 is installed on the main body 1 and can be slidably arranged along the height and width directions of the main body 1, the flaw detection work platform 2 includes a probe group 5, a rotating device 6, a cylinder body and a telescopic rod 7 driven by the cylinder body, the telescopic rod 7 is used to lift the wheel, the rotating device 6 is used to drive the wheel to rotate, the probe group 5 includes a detection surface 15, the detection surface 15 is used to fit the tread 4 of the wheel, and the cylinder body, the probe group 5, the rotating device 6 and the spraying device are all communicatively connected to the controller.

[0035] The locomotive wheel flaw detection device provided by the present invention includes a main body 1 and a flaw detection work platform 2. The flaw detection work platform 2 can be slidably arranged along the height and width directions of the main body 1, so as to facilitate the adjustment of the relative position between the flaw detection work platform 2 and the wheel tread. When the flaw detection work platform 2 drives the telescopic rod 7 to move to the wheel, the telescopic rod 7 is extended by the cylinder body to lift the wheel, and then the detection surface 15 on the probe group 5 is attached to the tread 4 of the wheel. At this time, the controller controls the rotating device 6 to drive the wheel to rotate and the spraying device to couple water spray to the wheel tread 4, thereby performing circumferential detection on the wheel tread 4. The locomotive wheel flaw detection device provided by the present invention reduces the labor intensity of the operator, improves the detection efficiency, reduces the process required to cooperate with the shunting before the operation, and improves the convenience of implementing the operation.

[0036] like Figure 3As shown, the main vehicle body 1 also includes a main body bottom plate, a first front panel 13, a second front panel, a first rear panel, a second rear panel 16, a first sliding sleeve, a second sliding sleeve 17, a first vertical guide column, a second vertical guide column 18, a first mounting seat, a second mounting seat 19, a first motor 20, a matching rack 22 and a gear 21, and the flaw detection work platform 2 also includes a flaw detection bottom plate, the first rear panel and the second rear panel 16 are relatively arranged and installed on the main body bottom plate along the width direction of the main vehicle body 1, the first sliding sleeve is installed on the first rear panel, the second sliding sleeve 17 is installed on the second rear panel 16, the first sliding sleeve is provided with a first sliding hole, the second sliding sleeve 17 is provided with a second sliding hole, the first mounting seat is installed on the top end of the first vertical guide column, the second mounting seat 19 is installed on the top end of the second vertical guide column 18, the first vertical guide column passes through the first sliding hole and can be slidably arranged along the height direction of the main vehicle body 1, and the second vertical guide column 18 passes through the second sliding hole The rear portion is slidably arranged along the height direction of the main vehicle body 1, the top end of the first front panel 13 is mounted on the first mounting seat, the bottom end of the first front panel 13 is mounted on the flaw detection work platform, the top end of the second front panel is mounted on the second mounting seat 19, and the bottom end of the second front panel is mounted on the flaw detection work platform. The first front panel 13, the first vertical guide column, and the first mounting seat are slidably arranged together along the height direction of the main vehicle body 1, the second front panel, the second vertical guide column 18, and the second mounting seat 19 are slidably arranged together along the height direction of the main vehicle body 1, the two ends of the rack 22 are respectively mounted on the first front panel 13 at the two ends along the height direction of the main vehicle body 1, the output shaft of the first motor 20 is mounted on the gear 21 to drive the gear 21 to rotate, and the engagement of the gear 21 and the rack 22 drives the rack 22, the first front panel 13, and the flaw detection work platform 2 to perform linear motion along the height direction of the main vehicle body 1, and the first motor 20 is communicatively connected to the controller. In this embodiment, the first motor 20 drives the gear 21 to rotate. Through the engagement of the gear 21 and the rack 22, the rack 22 slides along the height direction of the main vehicle body 1, thereby driving the first front panel 13, the first vertical guide column, the second vertical guide column 18, the second front panel, the first mounting seat, and the second mounting seat 19 to slide along the height direction of the main vehicle body 1, thereby improving the convenience of adjusting the relative position of the flaw detection work platform 2 in the height direction of the main vehicle body 1, thereby improving the convenience of adjusting the relative position between the flaw detection work platform 2 and the tread 4 of the wheel in the height direction, thereby improving the operation convenience of the locomotive wheel flaw detection device.

[0037] like Figure 3As shown, the flaw detection work platform 2 also includes a tow rod 8, a horizontal guide column 9, a first guide column fixing seat 10, a second guide column fixing seat 11, and a first linear push rod motor 12. The bottom end of the first front panel 13 is mounted on the first guide column fixing seat 10, and the bottom end of the second front panel is mounted on the second guide column fixing seat 11. A first through hole is provided in the first guide column fixing seat 10, and a second through hole is provided in the second guide column fixing seat 11. One end of the horizontal guide column 9 is mounted in the first through hole, and the other end of the horizontal guide column 9 is mounted in the second through hole, so that the horizontal guide column 9 can be slidably arranged along the width direction of the main vehicle body 1; one end of the tow rod 8 is mounted on the flaw detection base plate, and the other end of the tow rod 8 is mounted on the horizontal guide column 9, one end of the first linear push rod motor 12 is mounted on the flaw detection base plate, and the other end of the first linear push rod motor 12 is mounted on the second front panel, and the first linear push rod motor 12 is retractable along the width direction of the main vehicle body 1 to drive the flaw detection work platform 2 to be slidably arranged along the width direction of the main vehicle body 1. In this embodiment, the first front panel 13 is mounted on the flaw detection base plate through the first guide column fixing seat 10, and the second front panel is mounted on the flaw detection base plate through the second guide column fixing seat 11, that is, the first guide column fixing seat 10 and the second guide column fixing seat 11 are relatively arranged and mounted on the flaw detection base plate along the width direction of the flaw detection work platform 2. The first linear push rod motor 12 drives the horizontal guide column 9 and then drives the flaw detection work platform 2 to slide along the width direction of the main body 1, thereby improving the convenience of adjusting the relative position of the flaw detection work platform 2 in the width direction of the main body 1, thereby improving the adjustment of the relative position between the flaw detection work platform 2 and the tread 4 of the wheel in the width direction of the main body 1, thereby improving the operation convenience of the locomotive wheel flaw detection device.

[0038] like Figure 4 and Figure 9As shown, the rotating device 6 includes a friction wheel 23, a second motor, a support 24, a second linear push rod motor 25, a lever 26, a support shaft 27, and a spring sleeve 28. The spring sleeve 28 includes a push rod 29, a first spring 30 and a shell 31. The shell 31 is sleeved on the outside of the push rod 29 and is slidably arranged along the push rod 29. The push rod 29 includes a front end and a rear end that are relatively arranged. The front end is mounted on the support 24, and the rear end is mounted on one end of the first spring 30. The other end of the first spring 30 is fixed on the end surface of the shell 31 that faces away from the push rod 29. The lever 26 includes a first end and a second end that are relatively arranged. The support shaft 27 passes through the lever 26. The second linear pusher motor 25 is rotatably mounted on the flaw detection base plate, and the friction wheel 23 is mounted on the support 24. The support 24 is slidably arranged along the length of the flaw detection work platform 2. The output shaft of the second motor is connected to the rotating shaft of the friction wheel 23 to drive the friction wheel 23 to rotate. One end of the second linear pusher motor 25 is mounted on the flaw detection base plate, the other end of the second linear pusher motor 25 is mounted on the first end, and the second end is mounted on one end of the housing 31 at the pusher 29. The second linear pusher motor 25 is telescopically arranged along the length of the flaw detection work platform 2 to drive the support 24 and the friction wheel 23 to be slidably arranged along the length of the flaw detection work platform 2. In this embodiment, the second linear pusher motor 25 drives the friction wheel 23 mounted on the support 24 to slide along the length of the flaw detection work platform 2, so that the friction wheel 23 can be attached to the wheel. The rotation of the friction wheel 23 drives the rotation of the wheel, and the flaw detection group can perform a comprehensive circumferential inspection of the wheel tread 4, thereby improving the inspection efficiency of the locomotive wheel flaw detection device.

[0039] like Figure 5 、 Figure 6 and Figure 7As shown, the probe group 5 includes a connecting seat 32, a first guide rail 33, a second guide rail 34, a third linear push rod motor 35, a fourth linear push rod motor 36, a swing arm 37, a connecting rod 38, a first rotating shaft 39, a front vertical plate 42, a rear vertical plate, a probe 43 and a third motor 44. The connecting seat 32 includes a connecting surface and a mounting surface arranged in back to back. The first guide rail 33 and the second guide rail 34 are cross-shaped and staggered on the mounting surface. The third linear push rod motor 35 drives the connecting seat 32 to be slidably arranged on the first guide rail 33 along the width direction of the flaw detection work platform 2. The fourth linear push rod motor 36 drives the connecting seat 32 to be slidably arranged on the second guide rail 34 along the width direction of the flaw detection work platform 2. It can be slidably arranged in the length direction, and the front vertical plate 42 and the rear vertical plate are relatively arranged and installed on the connecting surface. The first rotating shaft 39 passes through the front vertical plate 42, the bottom of the swing arm 37, and the rear vertical plate and is fixed on the swing arm 37, and both ends of the first rotating shaft 39 can be rotatably installed in the front vertical plate 42 and the rear vertical plate. The third motor 44 drives the first rotating shaft 39 and the swing arm 37 to rotate together. The connecting rod 38 includes a connecting end 45 and a mounting end 46. The connecting end 45 is equipped with a probe 43, and the mounting end 46 is rotatably installed on the top of the swing arm 37. The third motor 44, the third linear push rod motor 35, the fourth linear push rod motor 36 and the probe 43 are all communicatively connected to the controller. In this embodiment, the probe 43 is mounted on the top of the swing arm 37 via a connecting rod 38. The swing arm 37 is mounted on the first guide rail 33 and the second guide rail 34 via a connecting seat 32. The third linear motor drives the swing arm 37, the connecting rod 38, and the probe 43 to slide along the first guide rail 33 in the width direction of the flaw detection work platform 2. The fourth linear motor drives the swing arm 37, the connecting rod 38, and the probe 43 to slide along the second guide rail 34 in the length direction of the flaw detection work platform 2. This improves the convenience of adjusting the relative position of the swing arm 37, the connecting rod 38, and the probe 43 to the flaw detection work platform 2 in the width and length directions. In other words, it improves the convenience of adjusting the relative position of the probe 43 to the wheel tread 4, thereby improving the ease of use of the locomotive wheel flaw detection device. In addition, a limit travel switch can be provided at the extended end of the third linear actuator motor 35 to ensure that the swing arm 37 always slides within a reasonable range along the width direction of the flaw detection work platform 2, thereby improving the reliability of the locomotive wheel flaw detection device.

[0040] like Figure 6As shown, the probe group 5 also includes a first travel switch 47, a second travel switch, a large gear, a matching small gear and a small rack 48. The output shaft of the third motor 44 drives the small gear to rotate, and the small gear 59 is engaged with the large gear 60. The first rotating shaft 39 is installed on the axle of the large gear 60 so that the third motor 44 drives the first rotating shaft 39 and the swing arm 37 to rotate together; a first stop block and a second stop block are provided at both ends of the small rack 48, and the small rack 48 can be slidably arranged along the width direction of the flaw detection work platform 2. When the small rack 48 moves to the two ends respectively, the first stop block triggers the first travel switch 47 or the second stop block triggers the second travel switch. The first travel switch 47 and the second travel switch are both communicatively connected to the controller. In this embodiment, the engagement of the small gear 59 and the large gear 60 can drive the first rotating shaft 39 and the swing arm 37 to rotate together. During the rotation of the swing arm 37, the small rack 48 will be driven to translate, and the angle of rotation of the swing arm 37 is converted into the displacement of the small rack 48. The sliding range of the swing arm 37 in the width direction of the flaw detection work platform 2 is limited by the first travel switch 47 and the second travel switch. When the swing arm 37 rotates to the extreme position, the first stop block on the small rack 48 triggers the first travel switch 47 or the second stop block triggers the second travel switch, and the swing arm 37 stops rotating, thereby improving the reliability of the locomotive wheel flaw detection device.

[0041] like Figure 5 As shown, the probe group 5 also includes a planetary gear 21, a second rotating shaft 40, a third rotating shaft, a first sprocket 14, a second sprocket 41 and a first chain 56 used in conjunction with it. The first rotating shaft 39, the second rotating shaft 40 and the third rotating shaft are all arranged in parallel. The planetary gear 21 includes a first meshing gear 21 and a second meshing gear 21 that are meshed with each other. The second sprocket 41 is installed on the top of the swing arm 37, the second sprocket 41 is installed on the third rotating shaft, and the third rotating shaft is arranged in the mounting end 46. The first rotating shaft 39 is also installed with the first meshing gear 21, and the second meshing gear 21 and the first sprocket 14 are installed on the second rotating shaft 40. The third rotating shaft is rotatably installed on the swing arm 37. The two ends of the first chain 56 are respectively wound around the first sprocket 14 and the second sprocket 41. The third motor 44 drives the first rotating shaft 39, the second rotating shaft 40 and the third rotating shaft to rotate, so as to drive the connecting rod 38 and the probe 43 to rotate together. In this embodiment, the second rotating shaft 40, the second meshing gear and the first sprocket 14 cannot rotate relative to each other, but can rotate as a whole on the swing arm 37. The second rotating shaft 40, the third rotating shaft, the connecting rod 38 and the probe 43 all rotate together with the swing arm 37, and the third rotating shaft can also drive the connecting rod 38 and the probe 43 to rotate relative to the swing arm 37, thereby improving the convenience of adjusting the relative position between the probe group 5 and the tread 4 of the wheel, so that the detection surface 15 of the probe 43 can be more conveniently attached to the tread, thereby improving the convenience of using the locomotive wheel flaw detection device.

[0042] like Figure 10 and Figure 11 As shown, the probe group 5 also includes an arc-shaped mounting bracket 49 and a plurality of probe units 50. The plurality of probe units 50 are sequentially mounted on the arc-shaped mounting bracket 49 along the length direction of the arc-shaped mounting bracket 49. Each probe unit 50 is provided with a second spring 51 and a probe 43. There are also multiple detection surfaces 15. Each probe 43 is provided with a detection surface 15. The deformation direction of each second spring 51 is perpendicular to the corresponding detection surface 15. It should be noted that wheel diameters vary, generally ranging from 950mm to 1250mm. To accommodate wheels of varying diameters, the detection surface 15 of the probe 43 can be aligned with the wheel's tread 4 based on the actual wheel diameter. For example, when the wheel diameter is between 1250mm and 950mm, the maximum radial (perpendicular to the detection surface 15) automatic adaptive expansion and contraction of the probe 43 is 4.5mm. The compression of the probe 43 at the center of a 950mm wheel is 8.3mm, while the compression of the two probes 43 on the outer sides of a 950mm wheel is 3.8mm. In this embodiment, the probe unit 50 is compressed by a second spring 51 to adapt to the tread 4 of wheels of varying diameters. This allows the detection surface 15 of the probe 43 to be pressed tightly against the wheel's tread 4, thereby improving the applicability of the locomotive wheel flaw detection device.

[0043] like Figure 12 As shown, the vehicle body also includes a running wheel 52, a running motor 53 with a differential, a drive wheel 54, a handle 3, and a third sprocket, a fourth sprocket, and a second chain 55 for use therewith. The drive wheel 54 is positioned against the running wheel 52, and the ends of the second chain 55 are wound around the third and fourth sprockets. The running motor 53 drives the third, fourth, second and fourth sprockets, and the drive wheel 54 to rotate, thereby driving the running wheel 52 to move. The running motor 53 is in communication with a controller. In this embodiment, the friction torque between the drive wheel 54 and the running wheel 52 drives the running wheel 52 to rotate, thereby causing the vehicle body and the flaw detection work platform 2 to move together, improving the ease of use of the locomotive wheel flaw detection device.

[0044] In one embodiment of the present invention, probe 43 is an ultrasonic probe, and an encoder 58 is mounted on arc-shaped mounting bracket 49. Encoder 58 is in communication with a controller. Encoder 58 can detect whether the wheel has completed one rotation, thereby ensuring that the locomotive wheel flaw detection device can perform a comprehensive inspection of the circumference of the wheel tread 4, thereby improving the detection accuracy of the locomotive wheel flaw detection device.

[0045] In one embodiment of the present invention, the spraying device includes a water tank, a water pump, a fourth motor and a water pipe. The water pump sprays the coupling water in the water tank onto the tread 4 of the wheel through the water pipe. The fourth motor is communicatively connected to the controller. When the probe 43 detects the tread 4 of the wheel, the coupling water is sprayed onto the tread 4 of the wheel through the spraying device, thereby improving the detection accuracy of the probe 43 and thereby improving the detection accuracy of the locomotive wheel flaw detection device.

[0046] like Figure 8 As shown, a mounting hole is provided on the flaw detection base plate, the wheel includes an axle box 57, and the cylinder body is mounted in the mounting hole. The distance between the cylinder body and the ground is less than the distance between the flaw detection base plate and the ground. The telescopic rod 7 is telescopic in the direction of approaching or moving away from the axle box 57. The telescopic rod 7 lifts the wheel by lifting the axle box 57. The telescopic rod 7 is detachably mounted on the cylinder body. It should be noted that the cylinder body is driven by a hydraulic station, which can be mounted on the vehicle body. When not testing, the telescopic rod 7 is removed from the cylinder body. When the cylinder body is moved below the axle box 57, the telescopic rod 7 is reinstalled on the cylinder body. This prevents the telescopic rod 7 from being blocked outside the axle box 57 when the flaw detection work platform 2 moves toward the axle box 57, thereby hindering the movement of the flaw detection work platform 2. In this embodiment, when the flaw detection work platform 2 moves to the vicinity of the wheel, the flaw detection work platform 2 is slid toward the ground until the cylinder body contacts the ground. At this time, the cylinder body drives the telescopic rod 7 to extend until the axle box 57 is lifted, and then the wheel is lifted. At this time, there is a large friction between the cylinder body and the ground, thereby ensuring that the locomotive wheel flaw detection device will not move at will after being positioned, thereby improving the ease of use of the locomotive wheel flaw detection device.

[0047] The use process of the locomotive wheel flaw detection device according to one embodiment of the present invention is as follows: first, the locomotive wheel flaw detection device is moved near the wheel; then, the swing arm 37 is rotated to a position with a smaller distance from the ground, and the position of the flaw detection work platform 2 is moved so that the cylinder body is located below the axle box 57. At this time, the telescopic rod 7 is installed on the cylinder body, and the cylinder body drives the telescopic rod 7 to extend to lift the axle box 57, thereby lifting the wheel; the position of the friction wheel 23 is moved so that the friction wheel 23 is in contact with the wheel, thereby driving the wheel to rotate; the position of the swing arm 37 on the flaw detection work platform 2 is moved, and the position of the probe 43 relative to the swing arm 37 is rotated so that the detection surface 15 on the probe 43 is in contact with the tread 4 of the wheel; finally, while the wheel rotates, the probe 43 performs circumferential detection on the tread 4 of the wheel.

[0048] The locomotive wheel flaw detection device provided by the present invention includes a main body 1 and a flaw detection work platform 2. The flaw detection work platform 2 can be slidably arranged along the height and width directions of the main body 1, so as to facilitate the adjustment of the relative position between the flaw detection work platform 2 and the wheel tread. When the flaw detection work platform 2 drives the telescopic rod 7 to move to the wheel, the telescopic rod 7 is extended by the cylinder body to lift the wheel, and then the detection surface 15 on the probe group 5 is attached to the tread 4 of the wheel. At this time, the controller controls the rotating device 6 to drive the wheel to rotate and the spraying device to couple water spray to the wheel tread 4, thereby performing circumferential detection on the wheel tread 4. The locomotive wheel flaw detection device provided by the present invention reduces the labor intensity of the operator, improves the detection efficiency, reduces the process required to cooperate with the shunting before the operation, and improves the convenience of implementing the operation.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locomotive wheel flaw detection device, characterized in that: It includes the main vehicle body and flaw detection working platform, including: The main vehicle body includes a spray device and a controller, wherein the spray device is used to spray the tread of the wheel with coupled water; The flaw detection work platform is mounted on the main vehicle body and is slidable along the height and width directions of the main vehicle body. The flaw detection work platform includes a probe group, a rotating device, a cylinder body, and a telescopic rod driven by the cylinder body. The telescopic rod is used to lift the wheel, and the rotating device is used to drive the wheel to rotate. The probe group includes a detection surface, and the detection surface is used to fit the tread of the wheel. The cylinder body, the probe group, the rotating device, and the spray device are all communicatively connected to the controller; The main vehicle body also includes a main body bottom plate, a first front panel, a second front panel, a first rear panel, a second rear panel, a first sliding sleeve, a second sliding sleeve, a first vertical guide column, a second vertical guide column, a first mounting seat, a second mounting seat, a first motor, and a matching rack and gear. The flaw detection work platform also includes a flaw detection bottom plate, the first rear panel and the second rear panel are relatively arranged and mounted on the main body bottom plate along the width direction of the main vehicle body, the first sliding sleeve is mounted on the first rear panel, the second sliding sleeve is mounted on the second rear panel, the first sliding sleeve is provided with a first sliding hole, the second sliding sleeve is provided with a second sliding hole, the first mounting seat is mounted on the top end of the first vertical guide column, the second mounting seat is mounted on the top end of the second vertical guide column, the first A vertical guide column is passed through the first sliding hole and can be slidably arranged along the height direction of the main vehicle body. The second vertical guide column is passed through the second sliding hole and can be slidably arranged along the height direction of the main vehicle body. The top end of the first front panel is installed on the first mounting seat, and the bottom end of the first front panel is installed on the flaw detection work platform. The top end of the second front panel is installed on the second mounting seat, and the bottom end of the second front panel is installed on the flaw detection work platform. The first front panel, the first vertical guide column, and the first mounting seat are slidably arranged together along the height direction of the main vehicle body. The second front panel, the second vertical guide column, and the second mounting seat are slidably arranged together along the height direction of the main vehicle body. The first motor is communicatively connected to the controller.

2. The locomotive wheel flaw detection device according to claim 1, characterized in that: The two ends of the rack are respectively mounted on the two ends of the first front panel along the height direction of the main vehicle body, and the output shaft of the first motor is mounted on the gear to drive the gear to rotate. The engagement of the gear and the rack drives the rack, the first front panel, and the flaw detection work platform to perform linear motion along the height direction of the main vehicle body.

3. The locomotive wheel flaw detection device according to claim 2, characterized in that: The flaw detection operation platform also includes a tow rod, a horizontal guide column, a first guide column fixing seat, a second guide column fixing seat, and a first linear push rod motor, wherein the bottom end of the first front panel is mounted on the first guide column fixing seat, and the bottom end of the second front panel is mounted on the second guide column fixing seat, and a first through hole is provided in the first guide column fixing seat, and a second through hole is provided in the second guide column fixing seat, so that the horizontal guide column can be slidably arranged along the width direction of the main vehicle body; one end of the tow rod is mounted on the flaw detection base plate, and the other end of the tow rod is mounted on the horizontal guide column, one end of the first linear push rod motor is mounted on the flaw detection base plate, and the other end of the first linear push rod motor is mounted on the second front panel, and the first linear push rod motor is retractable along the width direction of the main vehicle body to drive the flaw detection operation platform to be slidably arranged along the width direction of the main vehicle body.

4. The locomotive wheel flaw detection device according to claim 3, characterized in that: The rotating device includes a friction wheel, a second motor, a support, a second linear push rod motor, a lever, a support shaft, and a spring sleeve. The spring sleeve includes a push rod, a first spring and a shell. The shell is sleeved on the outside of the push rod and can be slidably arranged along the push rod. The push rod includes a front end and a rear end that are relatively arranged. The front end is mounted on the support, and the rear end is mounted on one end of the first spring. The other end of the first spring is fixed on the end surface of the shell facing away from the push rod. The lever includes a first end and a second end that are relatively arranged. The support shaft is rotatably mounted on the flaw detection base plate after passing through the lever. The friction wheel is mounted on the support, and the support is slidably arranged along the length direction of the flaw detection work platform. The output shaft of the second motor is connected to the rotating shaft of the friction wheel to drive the friction wheel to rotate. One end of the second linear push rod motor is mounted on the flaw detection base plate, and the other end of the second linear push rod motor is mounted on the first end. The second end is mounted on one end of the outer casing at the push rod. The second linear push rod motor is telescopically arranged along the length direction of the flaw detection work platform to drive the support and the friction wheel to be slidably arranged along the length direction of the flaw detection work platform.

5. The locomotive wheel flaw detection device according to claim 4, characterized in that: The probe group includes a connecting seat, a first guide rail, a second guide rail, a third linear push rod motor, a fourth linear push rod motor, a swing arm, a connecting rod, a first rotating shaft, a front vertical plate, a rear vertical plate, a probe and a third motor. The connecting seat includes a connecting surface and a mounting surface arranged in back to back. The first guide rail and the second guide rail are cross-shaped and staggered on the mounting surface. The third linear push rod motor drives the connecting seat to be slidably arranged on the first guide rail along the width direction of the flaw detection work platform. The fourth linear push rod motor drives the connecting seat to be slidably arranged on the second guide rail along the length direction of the flaw detection work platform. The front The vertical plate and the rear vertical plate are relatively arranged and installed on the connecting surface, the first rotating shaft passes through the front vertical plate, the bottom of the swing arm, and the rear vertical plate and is fixed to the swing arm, and both ends of the first rotating shaft can be rotatably installed in the front vertical plate and the rear vertical plate, the third motor drives the first rotating shaft and the swing arm to rotate together, the connecting rod includes a connecting end and a mounting end, the connecting end is equipped with the probe, and the mounting end is rotatably installed on the top of the swing arm, the third motor, the third linear push rod motor, the fourth linear push rod motor and the probe are all communicatively connected to the controller.

6. The locomotive wheel flaw detection device according to claim 5, characterized in that: The probe group also includes a first travel switch, a second travel switch, a large gear, a matching small gear and a small rack. The output shaft of the third motor drives the small gear to rotate, and the small gear is engaged with the large gear. The first rotating shaft is installed on the axle of the large gear so that the third motor drives the first rotating shaft and the swing arm to rotate together; a first stop block and a second stop block are provided at both ends of the small rack, and the small rack can be slidably arranged along the width direction of the flaw detection work platform. When the small rack moves to the two ends respectively, the first stop block triggers the first travel switch or the second stop block triggers the second travel switch. The first travel switch and the second travel switch are both communicatively connected to the controller.

7. The locomotive wheel flaw detection device according to claim 6, characterized in that: The probe group also includes a planetary gear, a second rotating shaft, a third rotating shaft, a first sprocket, a second sprocket and a first chain used in conjunction with the first rotating shaft, the second rotating shaft and the third rotating shaft are all arranged in parallel, the planetary gear includes a first meshing gear and a second meshing gear that are meshed with each other, the second sprocket is installed on the top of the swing arm, the second sprocket is installed on the third rotating shaft, and the third rotating shaft is arranged in the mounting end, the first meshing gear is also installed on the first rotating shaft, the second meshing gear and the first sprocket are installed on the second rotating shaft, the second rotating shaft is rotatably installed on the swing arm, the two ends of the first chain are respectively wrapped around the first sprocket and the second sprocket, and the third motor drives the first rotating shaft, the second rotating shaft and the third rotating shaft to rotate, so as to drive the connecting rod and the probe to rotate together.

8. The locomotive wheel flaw detection device according to claim 7, characterized in that: The probe group also includes an arc-shaped mounting bracket and multiple probe units. The multiple probe units are installed on the arc-shaped mounting bracket in sequence along the length direction of the arc-shaped mounting bracket. Each of the probe units is provided with a second spring and the probe. There are also multiple detection surfaces, and each of the probes is provided with a detection surface. The deformation direction of each second spring is arranged perpendicular to the corresponding detection surface.

9. The locomotive wheel flaw detection device according to claim 8, characterized in that: The main vehicle body also includes a running wheel, a running motor with a differential, a driving wheel, a handle, a third sprocket, a fourth sprocket and a second chain used in conjunction with the running wheel. The wheel surface of the driving wheel is attached to the wheel surface of the running wheel, and the two ends of the second chain are wound and installed on the third sprocket and the fourth sprocket. The running motor drives the third sprocket, the fourth sprocket, the second chain and the driving wheel to rotate, so as to drive the running wheel to rotate and move. The running motor is communicatively connected to the controller.

10. The locomotive wheel flaw detection device according to claim 9, characterized in that: The probe is an ultrasonic probe, and an encoder is provided on the arc-shaped mounting bracket. The encoder is communicatively connected with the controller.

11. The locomotive wheel flaw detection device according to claim 1, characterized in that: The spraying device includes a water tank, a water pump, a fourth motor and a water pipe. The water pump sprays the coupled water in the water tank onto the tread of the wheel through the water pipe. The fourth motor is communicatively connected to the controller.

12. The locomotive wheel flaw detection device according to claim 2, characterized in that: A mounting hole is provided on the flaw detection base plate, the wheel includes an axle box, the cylinder body is installed in the mounting hole, and the distance from the cylinder body to the ground is smaller than the distance from the flaw detection base plate to the ground, the telescopic rod is telescopic in a direction approaching or away from the axle box, and the telescopic rod lifts the wheel by lifting the axle box, and the telescopic rod is detachably mounted on the cylinder body.

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