Train wheel set bearing monitoring device with fault early warning function

Abstract

The utility model relates to a train wheel set bearing monitoring device with a fault early warning function, and belongs to the technical field of train wheel sets. The train wheel set bearing monitoring device with the fault early warning function comprises a rack, and a bearing monitoring mechanism for monitoring a train wheel set is arranged on the rack; the bearing monitoring mechanism comprises a mounting plate fixedly connected to the surface of the rack, an electric push rod is fixedly connected to the top of the mounting plate, a mounting seat is fixedly connected to the telescopic end of the electric push rod, a buffer plate is arranged on the side, close to the wheel pair, of the mounting seat, and a flaw detection probe is fixedly connected to one side of the buffer plate; and a bearing monitoring mechanism is arranged, an electric push rod drives a mounting base to move, the mounting base drives the flaw detection probe to approach the wheel pair bearing, the train wheel pair bearing is monitored through the flaw detection probe, the bearing can be monitored when the train travels, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of train wheelset technology, and in particular to a train wheelset bearing monitoring device with fault early warning function. Background Technology

[0002] Wheelsets are the parts of a locomotive or rolling stock that come into contact with the rails, consisting of two wheels securely mounted on the same axle. Train wheelset bearings generally operate in extremely harsh environments, making them the most prone to failure during train operation, yet they hold an irreplaceable position among all train components. High-speed rotating wheelset bearings, subjected to prolonged heavy loads, are highly susceptible to surface peeling, fatigue, and cracking, severely impacting the safe operation of the train.

[0003] Currently, a Chinese patent discloses a flaw detection device for train wheelset bearings (authorization announcement number CN218239324U). This utility model includes a flaw detection device body, which is driven by a motor to rotate a gear, which in turn drives a gear ring to rotate, which in turn drives a mounting sleeve to rotate. When the mounting sleeve rotates, it drives multiple sliding rods to rotate, thereby causing a cleaning brush to rotate. By holding the handle, the cleaning brush is pushed to contact the bearing on the axle. Through compression, the connecting rod slides along the sliding rod and compresses the spring. At this time, the cleaning brush will be in close contact with the bearing surface, thereby cleaning the bearing surface and preventing dust on the bearing surface from affecting the accuracy of the detection data. However, the above method has the following defects in actual use: the train needs to be stopped for flaw detection, and it is impossible to monitor and warn of the bearings of the train while it is running. Utility Model Content

[0004] Therefore, it is necessary to provide a train wheelset bearing monitoring device with fault warning function to address the problem of not being able to monitor and warn of train bearings while the train is in motion.

[0005] A train wheelset bearing monitoring device with fault early warning function includes: a frame on which train wheelsets are mounted, and a bearing monitoring mechanism for monitoring the train wheelsets is provided on the frame; the bearing monitoring mechanism includes a mounting plate fixedly connected to the surface of the frame, an electric push rod fixedly connected to the top of the mounting plate, a mounting base fixedly connected to the telescopic end of the electric push rod, a buffer plate provided on the mounting base near the wheelset side, a flaw detection probe fixedly connected to one side of the buffer plate, and a protection mechanism for protecting the flaw detection probe.

[0006] In one embodiment, a limit switch is provided on the top of the mounting plate, and the limit switch is correspondingly provided with the mounting base.

[0007] In one embodiment, the protection mechanism includes a omnidirectional ball fixedly connected to one side of the buffer plate, the thickness of the omnidirectional ball being greater than the thickness of the flaw detection probe.

[0008] In one embodiment, multiple omnidirectional balls are provided, and the multiple omnidirectional balls are evenly distributed on one side of the buffer plate, and the flaw detection probe is located at the center of the multiple omnidirectional balls.

[0009] In one embodiment, a telescopic rod is fixedly connected to one side of the mounting base, a connecting seat is fixedly connected to the telescopic end of the telescopic rod, a universal joint is fixedly connected to one side of the connecting seat, a buffer plate is disposed on the universal joint, and a spring is fixedly connected between the connecting seat and the telescopic rod.

[0010] In one embodiment, the frame has threaded holes, and the mounting plate is fixed to the frame by bolts.

[0011] In one embodiment, the flaw detection probe is configured as an ultrasonic probe, which is electrically connected to the alarm via a wire.

[0012] In one embodiment, the mounting plate is provided with an arc-shaped water-blocking cover.

[0013] Beneficial effects

[0014] A bearing monitoring mechanism is installed. The mounting base is moved by an electric push rod, which moves the mounting base to bring the flaw detection probe closer to the wheelset bearing. The flaw detection probe monitors the train wheelset bearing, which can monitor the bearing while the train is in motion, thus improving safety.

[0015] A protective mechanism is installed, which uses a universal ball joint to ensure that the ball fits snugly against the bearing cover, bringing the flaw detection probe as close to the bearing as possible and improving the accuracy of the flaw detection probe in monitoring the bearing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the bearing monitoring mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the buffer plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the protective mechanism of this utility model.

[0021] Figure label:

[0022] 100. Frame; 200. Bearing monitoring mechanism; 210. Mounting plate; 211. Electric push rod; 212. Mounting base; 213. Buffer plate; 214. Flaw detection probe; 215. Limit switch; 300. Protection mechanism; 310. Telescopic rod; 311. Spring; 312. Connecting seat; 313. Universal joint; 314. Universal ball. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0028] The following is combined Figures 1-4 This invention describes a train wheelset bearing monitoring device with fault early warning function.

[0029] In one embodiment, a train wheelset bearing monitoring device with fault early warning function includes: a frame 100, on which train wheelsets are mounted, and a bearing monitoring mechanism 200 for monitoring the train wheelsets is provided on the frame 100; the bearing monitoring mechanism 200 includes a mounting plate 210 fixedly connected to the surface of the frame 100, an electric push rod 211 fixedly connected to the top of the mounting plate 210, a mounting base 212 fixedly connected to the telescopic end of the electric push rod 211, a buffer plate 213 provided near the wheelset side of the mounting base 212, and a flaw detection probe 214 fixedly connected to one side of the buffer plate 213; it also includes a protection mechanism 300 for protecting the flaw detection probe 214.

[0030] like Figure 2 As shown, a limit switch 215 is provided on the top of the mounting plate 210, and the limit switch 215 is correspondingly provided with the mounting base 212. The flaw detection probe 214 is an ultrasonic probe, and the flaw detection probe 214 is electrically connected to the alarm through a wire.

[0031] In this embodiment, when bearing monitoring is required, the controller in the cab sends a signal to the electric push rod 211, which retracts, causing the mounting base 212 to move towards the bearing. When the mounting base 212 contacts the limit switch 215, the electric push rod 211 stops retracting. At this time, the mounting base 212 drives the flaw detection probe 214 to approach the bearing, and the bearing is detected by the flaw detection probe 214. The results are sent to the controller. When bearing damage is detected, the controller sends a signal to the alarm in the cab to sound an alarm, reminding the staff of the bearing damage and providing timely warning.

[0032] It should be noted that the instrument used for ultrasonic testing is called an ultrasonic flaw detector. Its principle is that when ultrasonic waves propagate through the material being tested, the acoustic properties and internal structure of the material affect the propagation of the waves. By detecting the degree and extent to which the ultrasonic waves are affected, we can understand the material's properties and structural changes.

[0033] like Figure 3 As shown, the protection mechanism 300 includes a universal ball 314 fixedly connected to one side of the buffer plate 213. The thickness of the universal ball 314 is greater than the thickness of the flaw detection probe 214.

[0034] In this embodiment, as the buffer plate 213 moves closer to the bearing, the universal ball 314 contacts the bearing first, maintaining a certain distance between the flaw detection probe 214 and the bearing. This avoids damaging the flaw detection probe 214.

[0035] like Figure 3 As shown, there are multiple omnidirectional balls 314, and the multiple omnidirectional balls 314 are evenly distributed on one side of the buffer plate 213, and the flaw detection probe 214 is set at the center of the multiple omnidirectional balls 314.

[0036] In this embodiment, multiple universal balls 314 are used to protect the flaw detection probe 214, so that the flaw detection probe 214 is close to the bearing but will not touch the bearing, thus protecting the flaw detection probe 214.

[0037] like Figure 4 As shown, a telescopic rod 310 is fixedly connected to one side of the mounting base 212, a connecting seat 312 is fixedly connected to the telescopic end of the telescopic rod 310, a universal joint 313 is fixedly connected to one side of the connecting seat 312, a buffer plate 213 is set on the universal joint 313, and a spring 311 is fixedly connected between the connecting seat 312 and the telescopic rod 310.

[0038] In this embodiment, spring 311 ensures that the buffer plate 213 always maintains a force close to the bearing. During train operation, the universal ball 314 remains in close contact with the bearing, thus keeping the distance between the flaw detection probe 214 and the bearing constant for flaw detection. The universal joint 313 allows the buffer plate 213 to rotate, causing it to shift in the event of train vibration or bearing damage, preventing damage to the flaw detection probe 214.

[0039] like Figure 1 and Figure 2 As shown, the frame 100 has threaded holes, and the mounting plate 210 is fixed to the frame 100 by bolts. An arc-shaped water baffle is provided on the mounting plate 210.

[0040] In this embodiment, the mounting plate 210 is fixed to the frame 100 with bolts, which facilitates the maintenance and replacement of the bearing monitoring mechanism 200. An arc-shaped water shield is provided on the top of the mounting plate 210 to protect the electric push rod 211 and the flaw detection probe 214.

[0041] Working principle: The mounting plate 210 is installed on the frame 100 with bolts. When the bearing needs to be inspected, the electric push rod 211 retracts, which drives the mounting base 212 to move towards the bearing, so that the universal ball 314 contacts the side of the bearing and the flaw detection probe 214 is close to the bearing, improving the accuracy of the monitoring results. The flaw detection probe 214 emits ultrasonic waves to detect the bearing, thus realizing the monitoring of the bearing.

[0042] It should be noted that the flaw detector 214, electric push rod 211, limit switch 215 and other components mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A train wheelset bearing monitoring device with fault early warning function, characterized in that, include: A frame (100) on which train wheelsets are mounted, and a bearing monitoring mechanism (200) for monitoring the train wheelsets is provided on the frame (100). The bearing monitoring mechanism (200) includes a mounting plate (210) fixedly connected to the surface of the frame (100). An electric push rod (211) is fixedly connected to the top of the mounting plate (210). A mounting base (212) is fixedly connected to the telescopic end of the electric push rod (211). A buffer plate (213) is provided on the side of the mounting base (212) near the wheelset. A flaw detection probe (214) is fixedly connected to one side of the buffer plate (213). It also includes a protection mechanism (300) to protect the flaw detection probe (214).

2. The train wheelset bearing monitoring device with fault early warning function according to claim 1, characterized in that, The mounting plate (210) is provided with a limit switch (215) on the top, and the limit switch (215) is provided in correspondence with the mounting base (212).

3. The train wheelset bearing monitoring device with fault early warning function according to claim 1, characterized in that, The protection mechanism (300) includes a universal ball (314) fixedly connected to one side of the buffer plate (213), the thickness of the universal ball (314) being greater than the thickness of the flaw detector (214).

4. The train wheelset bearing monitoring device with fault early warning function according to claim 3, characterized in that, Multiple omnidirectional balls (314) are provided, and the multiple omnidirectional balls (314) are evenly distributed on one side of the buffer plate (213), and the flaw detection probe (214) is located at the center of the multiple omnidirectional balls (314).

5. The train wheelset bearing monitoring device with fault early warning function according to claim 3, characterized in that, A telescopic rod (310) is fixedly connected to one side of the mounting base (212), and a connecting seat (312) is fixedly connected to the telescopic end of the telescopic rod (310). A universal joint (313) is fixedly connected to one side of the connecting seat (312), and a buffer plate (213) is set on the universal joint (313). A spring (311) is fixedly connected between the connecting seat (312) and the telescopic rod (310).

6. The train wheelset bearing monitoring device with fault early warning function according to claim 1, characterized in that, The frame (100) has threaded holes, and the mounting plate (210) is fixed to the frame (100) by bolts.

7. The train wheelset bearing monitoring device with fault early warning function according to claim 1, characterized in that, The flaw detection probe (214) is an ultrasonic probe, and the flaw detection probe (214) is electrically connected to the alarm via a wire.

8. The train wheelset bearing monitoring device with fault early warning function according to claim 1, characterized in that, An arc-shaped water-blocking cover is provided on the mounting plate (210).

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