Wheelset tread detection device

Abstract

The present invention provides a wheelset tread detection device, belonging to the field of wheelset detection technology, to address the problem that existing detection devices are inconvenient for testing the wear of rail wheels in wet and dusty environments. The device comprises a mounting frame, to which an axle is rotatably connected, the axle being driven by a motor, a wheel fixedly sleeved on the axle, and a track at the bottom of the wheel in contact with its wheel tread. A water tank is supported above the wheel by a bracket, the water tank comprising a bottom plate at the bottom, a water outlet extending through the bottom plate, a sealing plate at the bottom of the water outlet, a connecting post at the top of the sealing plate, the end of the connecting post away from the sealing plate extending through the water outlet and fixedly connected to the top of the water tank. A lifting device is also provided on the axle. In the present invention, by arranging a water tank above the wheel and track, a water-soil mixture in the water tank is applied to the wheel and track during wheelset wear testing, thereby simulating the wet and dusty environment of a tunnel.

Description

Technical Field

[0001] The invention belongs to the technical field of wheelset detection, and in particular relates to a wheelset tread detection device. Background Art

[0002] The wheelset is the part of the rolling stock that contacts the rails. It consists of two wheels securely mounted on the same axle. The wheelset's function is to ensure the rolling stock's operation and steering on the rails, bearing all static and dynamic loads from the rolling stock, transferring them to the rails, and transferring loads caused by track irregularities to the rolling stock's various components.

[0003] A wheelset consists of an axle and two wheels mounted on it. The wheels have treads that contact the track. Frequent braking and turning can cause side wear, abrasions, and tread peeling, significantly impacting the safe operation of the train and the service life of the wheelset. Patent number CN201910485550.X currently discloses a wheel tread damage testing device. This device, using a loading plate mounted on a loading seat, can simultaneously load a wheel specimen with lateral wind loads and axle loads, thereby simulating the rolling contact wear and fatigue damage of the wheel tread when a train wheelset is rotating at high speed and simultaneously bears axle loads and wind loads. This allows for the detection of tread damage, facilitating the subsequent implementation of effective preventive measures.

[0004] Although the above-mentioned existing technology can simulate the rolling contact wear and fatigue damage of the wheel tread under wind load, for rail vehicles in tunnels (such as shield construction), the wheels are in a humid and dusty environment for a long time. However, the wheel tread damage testing device is not convenient for testing the wear of rail wheels in a humid and dusty environment. Summary of the Invention

[0005] In view of this, the present invention provides a wheel tread damage testing device to solve the problem that the detection device in the prior art can simulate the rolling contact wear and fatigue damage of the wheel tread under wind load, but for rail vehicles in tunnels (such as shield construction), the wheels are in a humid and dusty environment for a long time, and the detection device is inconvenient to detect the wear of the rail wheels in a humid and dusty environment.

[0006] The technical solution adopted in the present invention is as follows:

[0007] A wheelset tread detection device comprises a mounting frame, an axle is rotatably connected to the mounting frame, the axle is driven by a motor, a wheel is fixedly sleeved on the axle, and a track is provided at the bottom of the wheel for contacting the wheel tread; a water tank is supported above the wheel by a bracket, the water tank comprises a bottom plate at the bottom, the bottom plate is slidably connected to the water tank, a water outlet is penetrated by the bottom plate, a sealing plate for closing the water outlet is provided at the bottom of the water outlet, a connecting column is provided at the top of the sealing plate, the diameter of the connecting column is smaller than the diameter of the water outlet, and an end of the connecting column away from the sealing plate passes through the water outlet and is fixedly connected to the top of the water tank; a jacking device is provided on the axle, and each rotation of the axle can lift the bottom plate upward once by the jacking device to open the water outlet.

[0008] In this technical solution, it should be noted that the axle is rotatably connected to the mounting frame through a bearing, and the motor belongs to the existing technology and will not be explained in detail here; the wheel has a tread and a rim, and the tread of the wheel is in contact with the top of the track, wherein a lifting device can be set under the track to drive the track up or down through the lifting device to change the friction between the track and the wheel; the water tank is filled with water and dust; the diameter of the sealing plate is larger than the diameter of the water outlet, and when the bottom plate moves upward, the sealing plate is separated from the water outlet, and the water-soil mixture in the water tank can flow out from the water outlet; in addition, the wheelset tread wear detection in this solution The device adopts existing technology and will not be explained in detail here. In this solution, when the wheelset needs to be inspected, water and dust are first filled into the water tank, and then the wheel is driven to rotate by the motor. During the rotation of the wheel, every time the wheel rotates one circle, the bottom plate can be driven upward once by the jacking device, thereby separating the water outlet on the bottom plate from the sealing plate on the connecting column. At this time, the water-soil mixture in the water tank can flow out from the water outlet and moisten the wheel and track to simulate the humid and dusty environment in the tunnel. After a period of time, the wheel tread can be inspected by the wheelset detection device. To sum up, in the present invention, a water tank is provided above the wheels and rails, and the water tank is filled with water and dust. When the wheelset is subjected to a wear test, the water-soil mixture in the water tank is applied to the wheels and rails, thereby simulating the humid and dusty environment in the tunnel and making the test results more realistic. Secondly, in the present invention, the wheelset rotates one circle, and the jacking device can drive the bottom plate to move upward once, thereby opening the water outlet. That is, in the present invention, the water-soil mixture drips and acts on the wheelset and rails at intervals. That is, while ensuring the wetting of the wheels and rails, the water-soil mixture will not act excessively on the wheels and rails.

[0009] Preferably, there are multiple water outlets, and the multiple water outlets are arranged at intervals along the length direction of the water tank.

[0010] In this technical solution, it should be noted that multiple water outlets are provided to increase the coverage area of the water outlet of the water tank. The number of water outlets is specifically six, and the distance between the two water outlets at the left and right ends is equivalent to the diameter of the wheel.

[0011] Preferably, the lifting device includes a push rod, which is provided on the axle and arranged along the radial direction of the axle. The length of the push rod is greater than the distance between the base plate and the axle.

[0012] In this technical solution, it should be noted that the jacking device specifically includes a jack. Since the length of the jack is greater than the distance between the base plate and the axle, during the rotation of the wheel, when the jack rotates to the position in contact with the base plate, it will lift the base plate upward. Since the sealing plate is fixed, relative movement occurs between the base plate and the sealing plate, thereby opening the water outlet and allowing the water-soil mixture in the water tank to flow out of the water outlet.

[0013] Preferably, the push rod is connected to the push rod via a one-way bearing.

[0014] In this technical solution, it should be noted that, although the present invention can simulate the humid and dusty environment in the tunnel, a water-soil mixture will flow out of the water tank during each wheelset tread inspection, so that the present invention can only simulate a humid and dusty environment, but cannot simulate a non-humid and less dusty environment. Based on this, the present invention is provided with a one-way bearing, which is a bearing that can rotate freely in one direction and is locked in the other direction. The one-way bearing has an inner ring and an outer ring, the inner ring is fixed on the axle, and the outer ring is connected to the push rod. When the axle rotates forward, the inner ring and the outer ring of the one-way bearing are in a locked state, that is, the axle can drive the push rod to rotate through the one-way bearing, and when the axle rotates reversely, the inner ring and the outer ring of the one-way bearing are in a free state, that is, the rotation of the axle will not drive the push rod to rotate. Based on the setting of the one-way bearing, the present invention has There are two working modes. One is a humid and dusty mode simulation. The axle is driven by the motor to rotate forward. At this time, the inner and outer rings of the one-way bearing are in a locked state, that is, the push rod rotates with the rotation of the axle. When the push rod rotates to the position of contact with the bottom plate, it will push the bottom plate upward. Since the sealing plate is fixed, relative movement occurs between the bottom plate and the sealing plate, which opens the water outlet and allows the water-soil mixture in the water tank to flow out of the water outlet; the second is a dust-free and water-free mode simulation. The axle is driven by the motor to reverse. At this time, the inner and outer rings of the one-way bearing are in a free state, that is, the push rod will not rotate with the rotation of the axle, so that the water outlet will not open; through the above two modes, not only the two environmental states of the wheelset can be detected, but also the staff can analyze and compare the test results under the two environments, and then judge the impact of the humid and dusty environment on the wheelset.

[0015] Preferably, the end of the push rod is rotatably connected to a roller.

[0016] In this technical solution, it should be noted that the roller is provided to reduce the friction between the top rod and the bottom plate.

[0017] Preferably, a connecting plate is provided above the water tank, a fixing column is provided at the bottom of the connecting plate, the bottom end of the fixing column slides through the water tank and is fixedly connected to the bottom plate, a spring is sleeved on the fixing column, one end of the spring is connected to the connecting plate, and the other end is connected to the water tank.

[0018] In this technical solution, it should be noted that the fixing columns are provided to connect the connecting plate and the base plate, and the springs are provided to support the connecting plate and assist in resetting the base plate and the connecting plate.

[0019] Preferably, an external thread is provided on the side wall of the connecting column, the connecting column passes out of the water tank and is connected to the connecting plate, and the connecting column is threadedly connected to the connecting plate through a screw bearing, and a stirring blade is provided on the side wall of the connecting column.

[0020] In this technical solution, it should be noted that after water and dust are injected into the water tank, the dust will sink and accumulate in the water tank due to gravity, causing the water outlet to be easily blocked or the water-soil mixture flowing out of the water outlet to be uneven (that is, after the dust sinks, initially, most of the dust flows out of the water outlet, and in the subsequent process, the dust concentration in the water tank is greatly reduced, resulting in less dust flowing out). Based on this, a screw bearing and an external thread are provided in this solution. Whenever the connecting plate moves up and down, the connecting column with a threaded structure will be driven to rotate by the screw bearing, thereby causing the stirring blade located in the water tank to rotate, so as to disturb and mix the water and soil in the water tank, reduce the chance of blockage of the water outlet, and enable the water-soil mixture to continuously flow out of the water tank during the entire detection process.

[0021] Preferably, the water tank is provided with a water inlet communicating with its inner cavity.

[0022] In this technical solution, it should be noted that the water injection port is provided to facilitate the staff to inject water and soil into the water tank.

[0023] Preferably, the axle is rotatably connected to the mounting bracket via a bearing.

[0024] Preferably, a pad is provided at the bottom of the motor.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. In the present invention, a water tank is installed above the wheels and rails, filled with water and dust. During the wheelset wear test, the water-soil mixture in the water tank is applied to the wheels and rails, simulating the humid and dusty environment of a tunnel and ensuring more realistic test results. Furthermore, the jacking device drives the bottom plate upward once for each complete rotation of the wheelset, thereby opening the water outlet. In other words, the water-soil mixture drips onto the wheels and rails at intervals, ensuring that the wheels and rails are kept moist, without excessive application of the water-soil mixture.

[0027] 2. In the present invention, based on the setting of the one-way bearing, the present invention has two working modes. One is a humid and dusty mode, in which the axle is driven to rotate forward by the motor. At this time, the inner ring and the outer ring of the one-way bearing are in a locked state, that is, the push rod rotates with the rotation of the axle. When the push rod rotates to the position of contact with the bottom plate, it will push the bottom plate upward. Since the sealing plate is fixed, relative movement occurs between the bottom plate and the sealing plate, thereby opening the water outlet and allowing the water-soil mixture in the water tank to flow out from the water outlet; the second is a dust-free and water-free mode, in which the axle is driven to rotate reversely by the motor. At this time, the inner ring and the outer ring of the one-way bearing are in a free state, that is, the push rod will not rotate with the rotation of the axle, so that the water outlet will not open; through the above two modes, not only can the two environmental states of the wheelset be detected, but also the staff can analyze and compare the test results under the two environments, and then judge the impact of the humid and dusty environment on the wheelset;

[0028] 3. In the present invention, a screw bearing and an external thread are provided. Whenever the connecting plate moves up and down, the screw bearing drives the connecting column with a threaded structure to rotate, thereby causing the stirring blade located in the water tank to rotate, so as to disturb and mix the water and soil in the water tank, reduce the probability of blockage of the water outlet, and enable the water-soil mixture to continuously flow out of the water tank during the entire detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure of the water tank and wheels of the present invention;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure of the wheel and the mounting frame of the present invention;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure after the top rod of the present invention pushes the bottom of the water tank upward;

[0034] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the water tank of the present invention;

[0035] Among them: 1-motor, 2-pad, 3-mounting frame, 4-track, 5-wheel, 6-axle, 7-top rod, 8-water tank, 9-bracket, 10-roller, 11-one-way bearing, 12-bottom plate, 13-sealing plate, 14-water inlet, 15-water outlet, 16-connecting column, 17-external thread, 18-screw bearing, 19-fixing column, 20-spring, 21-connecting plate, 22-stirring blade. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0041] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0042] Example

[0043] like Figure 1-5As shown, an embodiment of the present invention discloses a wheelset tread detection device, including a mounting frame 3, on which an axle is rotatably connected, the axle is driven by a motor 1, a wheel 5 is fixedly sleeved on the axle 6, and the bottom of the wheel 5 is provided with a track 4 in contact with the tread of the wheel 5; a water tank 8 is supported above the wheel 5 by a bracket 9, and the water tank 8 includes a bottom plate 12 at the bottom, the bottom plate 12 is slidably connected to the water tank 8, a water outlet 15 is penetrated by the bottom plate 12, the bottom of the water outlet 15 is provided with a sealing plate 13 for closing the water outlet 15, and a connecting column 16 is provided on the top of the sealing plate 13, the diameter of the connecting column 16 is smaller than the diameter of the water outlet 15, and the end of the connecting column 16 away from the sealing plate 13 passes through the water outlet 15 and is fixedly connected to the top of the water tank 8; a jacking device is provided on the axle, and when the axle rotates once, the bottom plate 12 can be lifted up once by the jacking device to open the water outlet 15. It should be noted that the axle is rotatably connected to the mounting frame 3 through a bearing, and the motor 1 belongs to the prior art and will not be described in detail here; the wheel 5 has a tread and a rim, and the tread of the wheel 5 contacts the top of the track 4, wherein a lifting device can be provided under the track 4, and the track 4 is driven up or down by the lifting device to change the friction between the track 4 and the wheel 5; the water tank 8 is filled with water and dust; the diameter of the sealing plate 13 is larger than the diameter of the water outlet 15, and when the bottom plate 12 moves upward, the sealing plate 13 is separated from the water outlet 15, and the water-soil mixture in the water tank 8 can flow out from the water outlet 15; in addition, the wheelset tread wear detection device in this scheme Existing technology is used and will not be explained in detail here. In this solution, when the wheelset needs to be inspected, water and dust are first filled into the water tank 8, and then the wheel 5 is driven to rotate by the motor 1. During the rotation of the wheel 5, each time the wheel 5 rotates one circle, the bottom plate 12 can be driven upward once by the jacking device, thereby separating the water outlet 15 on the bottom plate 12 from the sealing plate 13 on the connecting column 16. That is, at this time, the water-soil mixture in the water tank 8 can flow out from the water outlet 15 and moisten the wheel 5 and the track 4 to simulate the humid and dusty environment in the tunnel. After a period of time, the tread of the wheel 5 can be inspected by the wheelset detection device. To sum up, in the present invention, a water tank 8 is provided above the wheel 5 and the track 4, and the water tank 8 is filled with water and dust. When the wheelset is subjected to a wear test, the water-soil mixture in the water tank 8 acts on the wheels 5 and the track 4, which can simulate the humid and dusty environment in the tunnel, making the test results more realistic. Secondly, in the present invention, the wheelset rotates one circle, and the jacking device can drive the bottom plate 12 to move upward once, thereby opening the water outlet 15. That is, in the present invention, the water-soil mixture drips and acts on the wheelset and the track 4 at intervals, that is, under the premise of ensuring that the wheels 5 and the track 4 are moistened, there will be no excessive action of the water-soil mixture on the wheels 5 and the track 4.

[0044] like Figure 5 As shown, in this embodiment, there are multiple water outlets 15, and the multiple water outlets 15 are spaced apart along the length direction of the water tank 8. It should be noted that the multiple water outlets 15 are provided to increase the coverage area of the water outlet of the water tank 8. The number of water outlets 15 is specifically six, and the distance between the two water outlets 15 at the left and right ends is equivalent to the diameter of the wheel 5.

[0045] like Figure 3 As shown, in this embodiment, the jacking device includes a push rod 7, which is provided on the axle and arranged along the radial direction of the axle. The length of the push rod 7 is greater than the distance between the bottom plate 12 and the axle. It should be noted that the jacking device specifically includes the push rod 7. Since the length of the push rod 7 is greater than the distance between the bottom plate 12 and the axle, when the push rod 7 rotates to a position in contact with the bottom plate 12 during the rotation of the wheel 5, it will push the bottom plate 12 upward. Since the sealing plate 13 is fixed, relative movement occurs between the bottom plate 12 and the sealing plate 13, thereby opening the water outlet 15, allowing the water-soil mixture in the water tank 8 to flow out from the water outlet 15.

[0046] like Figure 3As shown, in this embodiment, the push rod 7 is connected to the push rod 7 through a one-way bearing 11. It should be noted that although the present invention can simulate the humid and dusty environment in the tunnel, a water-soil mixture will flow out of the water tank 8 each time the wheelset tread is detected, so that the present invention can only simulate a humid and dusty environment, but cannot simulate a non-humid and less dusty environment. Based on this, the present invention is provided with a one-way bearing 11. The one-way bearing 11 is a bearing that can rotate freely in one direction and is locked in the other direction. The one-way bearing 11 has an inner ring and an outer ring. The inner ring is fixed on the axle 6, and the outer ring is connected to the push rod 7. When the axle 6 rotates forward, the inner ring and the outer ring of the one-way bearing 11 are in a locked state, that is, the axle 6 can drive the push rod 7 to rotate through the one-way bearing 11. When the axle 6 rotates in the reverse direction, the inner ring and the outer ring of the one-way bearing 11 are in a free state, that is, the rotation of the axle 6 will not drive the push rod 7 to rotate. Based on the setting of the one-way bearing 11, the present invention has two working modes. The first is to simulate a humid and dusty mode, in which the motor 1 drives the axle 6 to rotate forward. At this time, the inner and outer rings of the one-way bearing 11 are in a locked state, that is, the push rod 7 rotates with the rotation of the axle 6. When the push rod 7 rotates to a position in contact with the bottom plate 12, it will push the bottom plate 12 upward. Since the sealing plate 13 is fixed, relative movement occurs between the bottom plate 12 and the sealing plate 13, thereby opening the water outlet 15 and allowing the water-soil mixture in the water tank 8 to flow out from the water outlet 15; the second is to simulate a dust-free and water-free mode, in which the motor 1 drives the axle 6 to rotate reversely. At this time, the inner and outer rings of the one-way bearing 11 are in a free state, that is, the push rod 7 will not rotate with the rotation of the axle 6, so that the water outlet 15 will not open; through the above two modes, not only can the two environmental states of the wheelset be measured, but the staff can also analyze and compare the test results under the two environments, and then judge the impact of the humid and dusty environment on the wheelset.

[0047] like Figure 3 As shown, in this embodiment, the end of the push rod 7 is rotatably connected to a roller 10. It should be noted that the setting of the roller 10 is used to reduce the friction between the push rod 7 and the bottom plate 12.

[0048] like Figure 5 As shown, in this embodiment, a connecting plate 21 is provided above the water tank 8, and a fixing column 19 is provided at the bottom of the connecting plate 21. The bottom end of the fixing column 19 slides through the water tank 8 and is fixedly connected to the bottom plate 12. A spring 20 is sleeved on the fixing column 19, and one end of the spring 20 is connected to the connecting plate 21, and the other end is connected to the water tank 8. It should be noted that the fixing column 19 is used to connect the connecting plate 21 and the bottom plate 12, and the spring 20 is used to support the connecting plate 21 and assist in resetting the bottom plate 12 and the connecting plate 21.

[0049] like Figure 5As shown, in this embodiment, an external thread 17 is provided on the side wall of the connecting column 16, the connecting column 16 passes through the outside of the water tank 8 and is connected to the connecting plate 21, and the connecting column 16 is threadedly connected to the connecting plate 21 through a screw bearing 18, and a stirring blade 22 is provided on the side wall of the connecting column 16. It should be noted that after water and dust are injected into the water tank 8, the dust will sink and accumulate in the water tank 8 due to gravity, causing the water outlet 15 to be easily blocked or the water-soil mixture flowing out of the water outlet 15 to be uneven (that is, after the dust sinks, initially, most of the dust flows out of the water outlet 15, and in the subsequent process, the dust concentration in the water tank 8 is greatly reduced, resulting in less dust flowing out). Based on this, a screw bearing 18 and an external thread 17 are provided in this scheme. Whenever the connecting plate 21 moves up and down, the connecting column 16 with a threaded structure will be driven to rotate by the screw bearing 18, thereby causing the stirring blade 22 located in the water tank 8 to rotate, so as to disturb and mix the water and soil in the water tank 8, reduce the probability of blockage of the water outlet 15, and enable the water-soil mixture to continue to flow out of the water tank 8 during the entire detection process.

[0050] like Figure 5 As shown, in this embodiment, the water tank 8 is provided with a water injection port 14 communicating with its inner cavity. It should be noted that the water injection port 14 is provided to facilitate the staff to inject water and soil into the water tank 8.

[0051] like Figure 1 As shown, in this embodiment, the axle 6 is rotatably connected to the mounting bracket 3 via a bearing.

[0052] like Figure 1 As shown, in this embodiment, a pad 2 is provided at the bottom of the motor 1.

[0053] The working principle of the present invention is:

[0054] When you need to simulate the humid and dusty environment in a tunnel:

[0055] First, fill the water tank 8 with water and dust, then use the motor 1 to drive the wheel 5 to rotate forward. During the forward rotation of the wheel 5, the push rod 7 is driven to rotate. When the push rod 7 rotates to a position where it contacts the bottom plate 12, it pushes the bottom plate 12 upward. Since the sealing plate 13 is fixed, relative movement occurs between the bottom plate 12 and the sealing plate 13, thereby opening the water outlet 15, allowing the water-soil mixture in the water tank 8 to flow out from the water outlet 15 and wet the wheel 5 and track 4 to simulate the humid and dusty environment in the tunnel. After a period of time, the tread of the wheel 5 can be tested using the wheelset testing device.

[0056] At the same time, whenever the bottom plate 12 moves up and down, the connecting plate 21 will be driven to move up and down through the fixed column 19. At this time, the connecting plate 21 will drive the connecting column 16 with a threaded structure to rotate through the screw bearing 18, thereby causing the stirring blade 22 located in the water tank 8 to rotate, so as to disturb and mix the water and soil in the water tank 8, reduce the probability of blockage of the water outlet 15, and enable the water-soil mixture to continue to flow out of the water tank 8 during the entire detection process.

[0057] When you need to simulate a dust-free and water-free environment:

[0058] The motor 1 drives the axle 6 to reverse, and at this time, the inner ring and the outer ring of the one-way bearing 11 are in a free state, that is, the push rod 7 will not rotate with the rotation of the axle 6, so that the water outlet 15 will not open.

[0059] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0060] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0061] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheelset tread detection device, characterized in that: The invention comprises a mounting frame (3), wherein an axle (6) is rotatably connected to the mounting frame (3), wherein the axle (6) is driven by a motor (1), wherein a wheel (5) is fixedly sleeved on the axle (6), wherein the bottom of the wheel (5) is provided with a track (4) in contact with the tread of the wheel (5); a water tank (8) is supported above the wheel (5) by a bracket (9), wherein the water tank (8) comprises a bottom plate (12) located at the bottom, wherein the bottom plate (12) is slidably connected to the water tank (8), and a water outlet (15) is provided through the bottom plate (12), wherein the water outlet (15) is provided through the bottom plate (12). A sealing plate (13) for closing the water outlet (15) is provided at the bottom of the outlet (15); a connecting column (16) is provided at the top of the sealing plate (13); the diameter of the connecting column (16) is smaller than the diameter of the water outlet (15); an end of the connecting column (16) away from the sealing plate (13) passes through the water outlet (15) and is fixedly connected to the top of the water tank (8); a lifting device is provided on the axle (6); when the axle (6) rotates once, the bottom plate (12) can be lifted up once by the lifting device, so that the water outlet (15) is opened; The lifting device comprises a push rod (7), the push rod (7) being arranged on the axle (6), and the push rod (7) being arranged along the radial direction of the axle (6), and the length of the push rod (7) being greater than the distance between the bottom plate (12) and the axle (6), The push rod (7) is connected to the push rod (7) via a one-way bearing (11).

2. The wheelset tread detection device according to claim 1, characterized in that: There are multiple water outlets (15), and the multiple water outlets (15) are arranged at intervals along the length direction of the water tank (8).

3. The wheelset tread detection device according to claim 1, characterized in that: The end of the push rod (7) is rotatably connected to a roller (10).

4. The wheelset tread detection device according to claim 1, characterized in that: A connecting plate (21) is provided above the water tank (8), a fixing column (19) is provided at the bottom of the connecting plate (21), the bottom end of the fixing column (19) slides through the water tank (8) and is fixedly connected to the bottom plate (12), a spring (20) is sleeved on the fixing column (19), one end of the spring (20) is connected to the connecting plate (21), and the other end is connected to the water tank (8).

5. The wheelset tread detection device according to claim 4, characterized in that: The side wall of the connecting column (16) is provided with an external thread (17), the connecting column (16) passes through the outside of the water tank (8) and is connected to the connecting plate (21), and the connecting column (16) is threadedly connected to the connecting plate (21) through a screw bearing (18), and the side wall of the connecting column (16) is provided with a stirring blade (22).

6. The wheelset tread detection device according to claim 1, characterized in that: The water tank (8) is provided with a water inlet (14) communicating with its inner cavity.

7. The wheelset tread detection device according to claim 1, characterized in that: The axle (6) is rotatably connected to the mounting frame (3) via a bearing.

8. The wheelset tread detection device according to claim 1, characterized in that: A pad (2) is provided at the bottom of the motor (1).

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