Wheel set tread detection device

Abstract

The invention provides a wheel set tread detection device, belongs to the technical field of wheel set detection, and aims to solve the problem that a detection device in the prior art is inconvenient to detect the wear degree of a track wheel in a humid and dusty environment. The device comprises a mounting frame, an axle is rotationally connected to the mounting frame and driven by a motor, wheels fixedly sleeve the axle, and rails making contact with wheel treads of the wheels are arranged at the bottoms of the wheels; a water tank is supported above the wheels through a support and comprises a bottom plate located at the bottom, a water outlet is formed in the bottom plate in a penetrating mode, a sealing plate is arranged at the bottom of the water outlet, a connecting column is arranged at the top of the sealing plate, and the end, away from the sealing plate, of the connecting column penetrates through the water outlet and is fixedly connected with the top of the water tank. And a jacking device is arranged on the axle. According to the invention, the water tank is arranged above the wheels and the track, and when a wheel pair is subjected to an abrasion test, a water-soil mixture in the water tank acts on the wheels and the track, so that a humid and dusty environment in a tunnel can be simulated.

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] Wheelset is the part of the locomotive that contacts the rails. It consists of two wheels firmly pressed on the same axle. The function of the wheelset is to ensure the running and steering of the locomotive on the rails, bear all the static and dynamic loads from the locomotive, transfer them to the rails, and transfer the loads caused by the unevenness of the track to the various parts of the locomotive.

[0003] The wheelset includes an axle and two wheels on the axle. The wheels have treads that contact the track. Frequent braking and turning will cause side wear, abrasions and tread peeling, which have a very important impact on the safe operation of the train and the service life of the wheelset. At present, the patent with patent number CN201910485550.X discloses a wheel tread damage test device. Through the loading plate set on the loading seat, the wheel sample can be loaded with lateral wind load and axle weight at the same time, thereby simulating the rolling contact wear and fatigue damage of the wheel tread when the train wheelset is under high-speed rotation and bears axle weight and wind load at the same time, and then the tread damage is detected, which is conducive to subsequent effective preventive measures;

[0004] Although the above-mentioned prior art 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 detecting 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 by 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 in contact with the wheel tread is provided at the bottom of the wheel; a water tank is supported by a bracket above the wheel, 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 one 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 lifting device is provided on the axle, and once the axle rotates, the bottom plate can be lifted upward once by the lifting 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 prior art and will not be described in detail here; the wheel has a tread and a wheel rim, and the tread of the wheel is in contact with the top of the track, wherein a lifting device can be arranged under the track, and the track is driven up or down by 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 the existing technology and will not be explained in detail here. In this scheme, when it is necessary to detect the wheelset, 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 to move upward once by the jacking device, so that the water outlet on the bottom plate is separated from the sealing plate on the connecting column. That is, at this time, the water-soil mixture in the water tank can flow out from the water outlet and wet the wheel and the track to simulate the humid and dusty environment in the tunnel. After a period of time, the tread of the wheel can be detected by the wheelset detection device. To sum up, in the present invention, a water tank is arranged above the wheels and the 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 the rails, so as to simulate the humid and dusty environment in the tunnel, and make the test result more realistic. Secondly, in the present invention, the wheelset rotates one circle, and the lifting 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 the rails at intervals, that is, under the premise of ensuring the wetting of the wheels and the rails, the water-soil mixture will not act too much on the wheels and the 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 the multiple water outlets are provided to increase the coverage area of ​​the water outlet of the water tank. The number of the 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 arranged on the axle and arranged radially along the axle, and the length of the push rod is greater than the distance between the bottom plate and the axle.

[0012] In this technical solution, it should be noted that the lifting device specifically includes a push rod. Since the length of the push rod is greater than the distance between the bottom plate and the axle, during the rotation of the wheel, when the push rod rotates to a position in contact with the bottom plate, it will lift 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 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 each time the wheelset tread is detected, so that the present invention can only simulate the humid and dusty environment, but cannot simulate the non-humid and less dusty environment. Based on this, the present invention is provided with a one-way bearing, which is a kind of bearing that can rotate freely in one direction and is locked in another 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 at this time, 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 at this time; based on the setting of the one-way bearing, the present invention has There are two working modes. One is a simulating wet and dusty mode. The motor drives the axle 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 axle. When the push rod rotates to the position in contact with the bottom plate, it will lift 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 of the water outlet; the second is a simulating dust-free and water-free mode. The motor drives the axle 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 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 wet 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 column is used to connect the connecting plate and the bottom plate, and the spring is used to support the connecting plate and assist the bottom plate and the connecting plate in resetting.

[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, while 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 through the screw bearing, thereby causing the stirring blades 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 continue to flow out of the water tank during the entire detection process.

[0021] Preferably, the water tank is provided with a water inlet connected to 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 frame 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 arranged above the wheels and rails, and the water tank is filled with water and dust. When the wheelset is subjected to wear test, the water-soil mixture in the water tank acts on the wheels and rails, which can simulate the humid and dusty environment in the tunnel, making the test result more realistic. Secondly, in the present invention, the lifting device can drive the bottom plate to move upward once after the wheelset rotates one circle, 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, under the premise of ensuring the wetting of the wheels and rails, the water-soil mixture will not act on the wheels and rails too much.

[0027] 2. In the present invention, based on the setting of the one-way bearing, the present invention has two working modes, one of which is to simulate the wet 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 in 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 of the water outlet; the second is to simulate the dust-free and water-free mode, in which the axle is driven to reverse 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 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 wet 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 connecting column with a threaded structure is driven to rotate through the screw bearing, thereby causing the stirring blades 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 three-dimensional structural schematic diagram of the water tank and the wheel of the present invention;

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

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

[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] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here 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 claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may 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, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates 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 of the present invention and the features of the embodiments may be combined with each other.

[0042] Example

[0043] like Figure 1-5As shown, an embodiment of the present invention discloses a wheel pair 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 a track 4 in contact with the tread of the wheel 5 is provided at the bottom of the wheel 5; a water tank 8 is supported by a bracket 9 above the wheel 5, the water tank 8 includes a bottom plate 12 located at the bottom, the bottom plate 12 is slidably connected to the water tank 8, a water outlet 15 is penetrated through the bottom plate 12, a sealing plate 13 for closing the water outlet 15 is provided at the bottom of the water 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, and one 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 once the axle rotates, 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 arranged 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 wheel set tread wear detection device in this scheme Existing technology is used and no further explanation is given 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 motor 1 is used to drive the wheel 5 to rotate. 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, so that the water outlet 15 on the bottom plate 12 is separated 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 wet 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 inspection device. To sum up, in the present invention, a water tank 8 is arranged 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 result 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, the water-soil mixture will not act excessively 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 arranged at intervals along the length direction of the water tank 8. It should be noted that the multiple water outlets 15 are arranged to increase the coverage of the water outlet of the water tank 8. The number of the 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 arranged on the axle and arranged along the radial direction of the axle, and 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, during the rotation of the wheel 5, 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, so that the water-soil mixture in the water tank 8 flows 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 the humid and dusty environment, but cannot simulate the 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 kind of bearing that can rotate freely in one direction and is locked in another 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, at this time, the axle 6 can drive the push rod 7 to rotate through the one-way bearing 11, and when the axle 6 rotates reversely, the inner ring and the outer ring of the one-way bearing 11 are in a free state, that is, at this time, 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 the wet and dusty mode, and 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 axle 6. When the push rod 7 rotates to the 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, so that the water-soil mixture in the water tank 8 flows out from the water outlet 15; the second is to simulate the dust-free and water-free mode, and 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 axle 6, so that the water outlet 15 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 wet 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 with a roller 10. It should be noted that the roller 10 is provided 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, 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. 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 the bottom plate 12 and the connecting plate 21 in resetting.

[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 the present scheme. Whenever the connecting plate 21 moves up and down, the connecting column 16 with a threaded structure will be driven 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.

[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 frame 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 drive the wheel 5 to rotate forward through the motor 1. During the forward rotation of the wheel 5, the push rod 7 is driven to rotate. When the push rod 7 rotates to the position in contact with the bottom plate 12, it will push the bottom plate 12 upward. Since the sealing plate 13 is fixed, the bottom plate 12 and the sealing plate 13 move relative to each other, so that the water outlet 15 is opened, so that the water-soil mixture in the water tank 8 flows out from the water outlet 15, and the wheel 5 and the track 4 are wetted to simulate the humid and dusty environment in the tunnel. After a period of time, the tread of the wheel 5 can be detected by the wheelset detection 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 allow 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, at which 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 prior art 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 enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 will not be limited to the embodiments shown herein, but rather 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), the mounting frame (3) is rotatably connected to an axle (6), the axle (6) is driven by a motor (1), a wheel (5) is fixedly sleeved on the axle (6), and a track (4) in contact with the tread of the wheel (5) is provided at the bottom of the wheel (5); A water tank (8) is supported above the wheel (5) by a bracket (9), the water tank (8) comprising a bottom plate (12) located at the bottom, the bottom plate (12) being slidably connected to the water tank (8), a water outlet (15) being provided through the bottom plate (12), a sealing plate (13) for closing the water outlet (15) being provided at the bottom of the water outlet (15), a connecting column (16) being provided at the top of the sealing plate (13), the diameter of the connecting column (16) being smaller than the diameter of the water outlet (15), and an end of the connecting column (16) away from the sealing plate (13) passing through the water outlet (15) and being fixedly connected to the top of the water tank (8); The axle (6) is provided with a lifting device, and when the axle (6) rotates once, the bottom plate (12) can be lifted upwards once by the lifting device, so that the water outlet (15) is opened.

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

3. A wheelset tread detection device according to claim 1, characterized in that: The lifting device comprises a push rod (7), which is arranged on the axle (6) and is arranged along the radial direction of the axle (6). The length of the push rod (7) is greater than the distance between the bottom plate (12) and the axle (6).

4. A wheelset tread detection device according to claim 3, characterized in that: The push rod (7) is connected to the push rod (7) via a one-way bearing (11).

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

6. A wheelset tread detection device according to claim 3, 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).

7. A wheelset tread detection device according to claim 6, characterized in that: The side wall of the connecting column (16) is provided with an external thread (17); the connecting column (16) extends out of the water tank (8) and is connected to a connecting plate (21); the connecting column (16) is threadedly connected to the connecting plate (21) via a lead screw bearing (18); and a stirring blade (22) is provided on the side wall of the connecting column (16).

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

9. 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.

10. 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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