A switch point rail displacement measuring device

Abstract

This application relates to a turnout switch rail displacement measuring device, comprising: a measuring base plate fixedly mounted on a turnout sleeper; a measuring bracket movably mounted on the measuring base plate and movable along the extension direction of the turnout sleeper; a displacement sensor mounted on the measuring bracket, with its sensor probe facing the turnout switch rail; and a first connecting member, one end of which is connected to the measuring bracket, and the other end of which is connected to a turnout switch machine. This device can accurately measure the displacement of the turnout switch rail without affecting normal turnout operation, ensuring safe train operation.

Description

Technical Field

[0001] This application relates to the field of rail transit technology, and in particular to a switch tip rail displacement measuring device. Background Technology

[0002] With the development of rail transit, the safety of rail transit, especially the safety of track switching, has gradually increased. Track switching is achieved by changing the position between the switch point rail and the stock rail. The gap between the switch point rail and the stock rail within a certain range generally does not affect the safe operation of the train; however, when a heavy-load train passes through a switch, the intense wheel-rail interaction force can cause relative displacement of the guide rail structure, which may affect the safe operation of the train.

[0003] To improve the safety of train operation, related technologies use rail displacement testing equipment to measure the displacement of the switch rails.

[0004] However, the displacement measurement equipment in the relevant technology can affect the normal operation of the turnout, and cannot fully grasp the relative displacement of the switch rail, resulting in the inability to effectively guarantee the safety of train operation. Utility Model Content

[0005] This application provides a turnout switch rail displacement measuring device, which can accurately measure the displacement of the turnout switch rail without affecting the normal operation of the turnout, thus ensuring the safe operation of trains.

[0006] This application provides a turnout switch rail displacement measuring device, including:

[0007] Measuring base plate, used to be fixed on turnout sleepers;

[0008] The measuring support is movably mounted on the measuring base plate and moves along the extension direction of the turnout sleeper on the measuring base plate.

[0009] The displacement sensor is mounted on the measuring bracket, with its sensor probe facing the switch point rail.

[0010] The first connector has one end connected to the measuring bracket and the other end connected to the turnout switch machine.

[0011] In one embodiment, the measuring bracket includes:

[0012] The measuring slide plate slides along the extension direction of the turnout sleeper on the measuring base plate;

[0013] A first support member is longitudinally mounted on a measuring slide plate; a first connecting member is connected to the first support member.

[0014] The second support is located at the end of the first support away from the measuring slide plate, and extends toward the turnout switch rail. The displacement sensor is located at the end of the second support toward the turnout switch rail.

[0015] In one embodiment, one of the measuring slide plate and the measuring base plate is provided with a slide rail, and the other of the measuring slide plate and the measuring base plate is provided with a slide groove. The slide rail is disposed in the slide groove and can slide along the slide groove.

[0016] Along the extension direction of the turnout sleeper, buffers are provided at both ends of the slide rail, which are used to selectively abut against the end of the slide rail.

[0017] In one embodiment, one of the slide rails and the slide grooves has a rolling element on its sidewall, which rolls in contact with the sidewall of the other slide rail or the slide groove.

[0018] In one embodiment, the length of the chute is greater than the length of the rail along the extension direction of the turnout sleeper; multiple rolling elements are provided, and the multiple rolling elements are arranged on the side wall of the chute along the length direction of the chute.

[0019] In one embodiment, the buffer includes either a sheet spring or a compression spring.

[0020] In one embodiment, a fixing buckle is provided in the middle of the first support member, and the fixing buckle is connected to the first connector.

[0021] In one embodiment, the measuring bracket further includes a third support member, one end of which is connected to the middle of the first support member, and the other end of which is connected to the end of the second support member facing the turnout switch rail.

[0022] In one embodiment, the measuring bracket has a mounting plate at one end facing the turnout switch rail, and the displacement sensor is fixed to the mounting plate.

[0023] In one embodiment, the displacement sensor includes a contact displacement sensor, wherein the sensor probe of the contact displacement sensor contacts the side wall of the turnout switch rail.

[0024] The turnout switch rail displacement measuring device provided in this application embodiment supports the measuring bracket and displacement sensor on the turnout sleeper via a measuring base plate. This allows the measuring device to measure and monitor the displacement of the turnout switch rail in real time from the turnout sleeper, enabling continuous monitoring of the relative displacement of the switch rail and improving train safety. A first connecting member is provided, with one end connected to the measuring bracket and the other end connected to the turnout switch machine. During track switching operations at the turnout switch rail, the turnout switch machine can use the first connecting member to move the measuring bracket relative to the measuring base plate. This causes the measuring bracket to move the displacement sensor along the extension direction of the turnout sleeper. In other words, during track switching operations at the turnout switch rail, the turnout switch machine can use the first connecting member to move the displacement sensor synchronously, allowing the displacement sensor to actively avoid the turnout switch rail and not affect the normal track switching operation. This ensures accurate measurement of the turnout switch rail displacement without affecting normal turnout operation, thus guaranteeing safe train operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the turnout switch rail displacement measuring device provided in some embodiments of this application.

[0026] Figure 2 This is a front view of a turnout switch rail displacement measuring device provided in some embodiments of this application.

[0027] Figure 3 This is a partial enlarged view of a turnout switch rail displacement measuring device provided in some embodiments of this application.

[0028] Figure 4 This is a side view of a turnout switch rail displacement measuring device provided in some embodiments of this application.

[0029] Figure 5 This is a top view of a turnout switch rail displacement measuring device provided in some embodiments of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10-Measuring base plate; 20-Turnout switch rail; 30-Site rail; 40-Measuring bracket; 50-First connecting piece;

[0032] 110 - Slide rail; 410 - Measuring slide plate; 420 - First support member; 430 - Second support member; 440 - Third support member;

[0033] 111-Buffer component; 112-Rolling component; 421-Fixing buckle; 431-Mounting plate. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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 that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] The specific structure of the turnout switch rail displacement measuring device provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] Figure 1 This is a schematic diagram of the overall structure of the turnout switch rail displacement measuring device provided in some embodiments of this application.

[0042] In some examples, refer to Figure 1 As shown, the turnout switch rail 20 can be located inside the stock rail 30. When a train passes through the turnout, the turnout switch rail 20 will vibrate and thus displace. The turnout switch rail displacement measuring device can measure the displacement of the turnout switch rail 20 when it vibrates.

[0043] In some examples, refer to Figure 1 As shown, the turnout switch rail displacement measuring device may include a measuring base plate 10. The measuring base plate 10 may be fixedly mounted on the turnout sleeper.

[0044] In some examples, the turnout is accessed by two opposing turnout switch rails 20. The measuring base plate 10 can be fixed to the turnout sleeper between the two turnout switch rails 20.

[0045] In some examples, the measuring base plate 10 can be fixed to the turnout sleeper by connecting components such as bolts, screws or threaded rods.

[0046] In some examples, the measuring base plate 10 can be fixed to the turnout sleeper by adhesive bonding.

[0047] In some examples, the turnout switch rail displacement measuring device may include a measuring bracket 40. The measuring bracket 40 may be movably mounted on the measuring base plate 10.

[0048] In some examples, the measuring bracket 40 can be slidably connected to the measuring base plate 10.

[0049] In some examples, the measuring bracket 40 can be along the extension direction of the turnout sleeper (e.g., Figure 1 The direction shown by the x-axis is slidably connected to the measuring base plate 10.

[0050] In some examples, the switch point rail displacement measuring device may include a displacement sensor (not shown in the figure). The displacement sensor may be mounted sideways on the measuring bracket 40. The sensor probe of the displacement sensor may be positioned opposite to the switch point rail 20. That is, the sensor probe of the displacement sensor can be used to measure the displacement of the switch point rail 20.

[0051] In some examples, the switch point rail 20 vibrates and shifts when a train passes through the switch. At this time, a displacement sensor can measure the displacement of the switch point rail 20 due to vibration.

[0052] In some examples, the turnout switch rail displacement measuring device may include a first connector 50. One end of the first connector 50 may be connected to the measuring bracket 40. The other end of the first connector 50 may be connected to the turnout switch machine.

[0053] In some examples, when a turnout needs to switch tracks, the turnout switch machine moves the turnout switch rail 20. At this time, because the first connecting piece 50 is connected to the turnout switch machine, the turnout switch machine can synchronously move the measuring bracket 40 and the displacement sensor mounted on the measuring bracket 40 via the first connecting piece 50. That is, during the track switching operation of the turnout switch rail 20, the displacement sensor will avoid the movement of the turnout switch rail 20 under the action of the turnout switch machine, thus ensuring that the turnout switch rail 20 can perform normal track switching operations. After the turnout switch rail 20 completes the track switching operation, when the train passes through the turnout, the turnout switch rail 20 vibrates. At this time, because the turnout switch rail displacement measuring equipment is fixed on the turnout sleeper, the displacement sensor can measure the displacement of the switch rail caused by the vibration in real time, accurately grasping the displacement of the turnout switch rail 20 in real time, which can improve the safety of train operation.

[0054] In some examples, the displacement sensor includes a contact displacement sensor, in which the sensor probe contacts the side wall of the turnout switch rail 20.

[0055] In some examples of embodiments of this application, the sensor probe of the contact displacement sensor contacts the side wall of the turnout switch rail 20, thereby improving the accuracy of the displacement sensor in measuring the displacement of the turnout switch rail 20.

[0056] The turnout switch rail displacement measuring device provided in this embodiment supports the measuring bracket 40 and displacement sensors on the turnout sleeper via a measuring base plate 10. This allows the measuring device to measure and monitor the displacement of the turnout switch rail 20 in real time from the turnout sleeper, enabling continuous monitoring of the relative displacement of the switch rail and improving train safety. A first connecting member 50 is provided, with one end connected to the measuring bracket 40 and the other end connected to the turnout switch machine. Thus, during rail replacement operations on the turnout switch rail 20, the turnout switch machine can... A connecting piece 50 drives the measuring bracket 40 to move relative to the measuring base plate 10, thereby causing the measuring bracket 40 to move the displacement sensor along the extension direction of the turnout sleeper. In other words, when the turnout switch rail 20 is being changed, the turnout switch machine can drive the displacement sensor to move synchronously through the first connecting piece 50, so that the displacement sensor can actively avoid the turnout switch rail 20 and will not affect the normal track changing operation of the turnout switch rail 20. It can accurately measure the displacement of the turnout switch rail 20 without affecting the normal operation of the turnout, thus ensuring the safe operation of the train.

[0057] In some examples, refer to Figure 1 As shown, the measuring bracket 40 may include a measuring slide plate 410. The measuring slide plate 410 can be slidably mounted on the measuring base plate 10.

[0058] In some examples, the measuring slide plate 410 can be slidably mounted on the measuring base plate 10 along the extension direction of the turnout sleeper.

[0059] In some examples, refer to Figure 1 As shown, the area of ​​the measuring base plate 10 can be larger than the area of ​​the measuring slide plate 410. In this way, the measuring base plate 10 can completely support the measuring slide plate 410, which can improve the stability of the measuring slide plate 410 when moving on the measuring base plate 10.

[0060] Figure 2 This is a front view of a turnout switch rail displacement measuring device provided in some embodiments of this application.

[0061] In some examples, refer to Figure 2 As shown, the measuring bracket 40 may include a first support member 420. The first support member 420 may be along the longitudinal direction (e.g., Figure 2 The direction shown by the y-axis is set on the measuring slide plate 410.

[0062] In some examples, the first support 420 may be fixedly connected to the measuring slide 410.

[0063] In some examples, the first support 420 may be welded to the measuring slide plate 410.

[0064] In some examples, the first support 420 may be fixedly connected to the measuring slide plate 410 by connecting components such as bolts, screws or threaded rods.

[0065] In some examples, the first connector 50 can be connected to the first support 420. During track switching operations at the turnout, the first connector 50 can move the measuring bracket 40 via the first support 420, driven by the turnout switch machine.

[0066] In some examples, the first support 420 can be a rod-like structure or a plate-like structure.

[0067] In some examples, refer to Figure 1 and Figure 2 As shown, the measuring bracket 40 may include a second support member 430. The second support member 430 may be located at the end of the first support member 420 away from the measuring slide plate 410. (Refer to...) Figure 1 and Figure 2 As shown, the second support member 430 can be disposed at the top of the first support member 420.

[0068] In some examples, the second support member 430 and the first support member 420 can be a single piece. For example, the second support member 430 and the first support member 420 can be formed by bending a rod-shaped member.

[0069] In some examples, the second support 430 and the first support 420 can be welded together as a single unit.

[0070] In some examples, the second support 430 may extend toward the turnout switch rail 20. That is, the second support 430 may extend along the extension direction of the turnout sleeper.

[0071] In some examples, the displacement sensor can be located at the end of the second support 430 facing the turnout switch rail 20. This can shorten or reduce the distance between the displacement sensor and the turnout switch rail 20, making it easier for the displacement sensor to measure the vibration displacement of the turnout switch rail 20.

[0072] In some examples of embodiments of this application, by providing a measuring slide plate 410 on the measuring base plate 10, the measuring slide plate 410 is slidably disposed on the measuring base plate 10 along the extension direction of the turnout sleeper, and by providing a first support member 420 on the measuring slide plate 410 and a second support member 430 on the first support member 420, the second support member 430 extends toward the turnout switch rail 20; in this way, the contact area between the measuring bracket 40 and the measuring base plate 10 can be increased by the measuring slide plate 410, thereby improving the stability of the measuring bracket 40 moving on the measuring base plate 10.

[0073] In some examples, refer to Figure 1 and Figure 2As shown, one of the measuring slide plate 410 and the measuring base plate 10 may be provided with a slide rail (not shown in the figure). The other of the measuring slide plate 410 and the measuring base plate 10 may be provided with a slide groove 110.

[0074] In some examples, refer to Figure 1 As shown, the slide 110 can be provided on the measuring base plate 10. The slide 110 can be recessed into the top wall of the slide 110.

[0075] In some examples, the slide rail may be a protrusion on the measuring slide plate 410. The slide rail may be located on the bottom of the measuring slide plate 410.

[0076] In some examples, the slide rail can be embedded in the slide groove 110 and can slide along the slide groove 110.

[0077] In some examples, the groove 110 may be provided on the measuring slide plate 410 and recessed into the bottom wall of the measuring slide plate 410.

[0078] In some examples, the slide rail may be located on the measuring base plate 10. The slide rail may protrude from the top of the measuring base plate 10.

[0079] It is understandable that the length of the chute 110 can be greater than or equal to the displacement length of the turnout switch rail 20 during track switching.

[0080] In some examples, refer to Figure 1 and Figure 2 As shown, along the extension direction of the turnout sleeper (e.g.) Figure 1 and Figure 2 (in the direction shown by the x-axis), buffers 111 can be provided at both ends of the slide 110.

[0081] In some examples, the buffer 111 can be used to selectively abut against the end of the slide rail.

[0082] In some examples, refer to Figure 1 As shown, at the turnout direction Figure 1 When changing rails in the negative direction of the x-axis, the turnout switch machine can drive the measuring bracket 40 to move in the negative direction of the x-axis through the first connecting piece 50. A buffer piece 111 located in the negative direction of the x-axis can abut against the end of the slide rail facing the negative direction of the x-axis, thereby buffering the measuring bracket 40, improving the stability of the movement of the measuring bracket 40, and protecting the displacement sensor.

[0083] In some examples, at the turnout direction Figure 1When changing rails in the positive direction of the x-axis, the turnout switch machine can drive the measuring bracket 40 to move in the positive direction of the x-axis through the first connecting piece 50. A buffer piece 111 in the positive direction of the displacement x-axis can abut against the end of the slide rail facing the positive direction of the x-axis, thereby buffering the measuring bracket 40, improving the stability of the movement of the measuring bracket 40, and protecting the displacement sensor.

[0084] In this embodiment, a slide rail is provided on one of the measuring slide plate 410 and the measuring base plate 10, and a slide groove 110 is provided on the other of the measuring slide plate 410 and the measuring base plate 10. The slide rail is placed in the slide groove 110 and slides along the slide groove 110. In this way, the cooperation between the slide rail and the slide groove 110 can guide the sliding of the measuring slide plate 410 and improve the stability of the measuring slide plate 410 sliding on the measuring base plate 10.

[0085] In addition, by setting buffers 111 at both ends of the slide rail 110 along the turnout sleeper, the buffers 111 can abut against the end of the slide rail when the turnout switch rail 20 is changed, thereby limiting and buffering the movement of the measuring bracket 40, reducing the impact on the measuring bracket 40 and improving the stability of the movement of the measuring bracket 40.

[0086] In some examples, the buffer 111 may include either a sheet spring or a compression spring.

[0087] In some examples, one section of the buffer 111 may be fixedly connected to the end sidewall of the chute 110.

[0088] Figure 3 This is a partial enlarged view of a turnout switch rail displacement measuring device provided in some embodiments of this application. Figure 4 This is a side view of a turnout switch rail displacement measuring device provided in some embodiments of this application. Figure 5 This is a top view of a turnout switch rail displacement measuring device provided in some embodiments of this application.

[0089] In some examples, refer to Figure 2 and Figure 3 As shown, the side wall of either the slide rail or the slide groove 110 may be provided with a rolling element 112.

[0090] In some examples, the roller 112 may roll into contact with the sidewall of the other of the slide rail and the groove 110.

[0091] In some examples, the rolling element 112 may be disposed on the side wall of the slide rail 110. The rolling element 112 may roll in contact with the side wall of the slide rail.

[0092] In some examples, the rolling element 112 may be disposed on the side wall of the slide rail. The rolling element 112 may roll contact with the side wall of the slide groove 110.

[0093] In some examples, the rolling element 112 may include a roller. For example, a groove may be formed in the side wall of the slide rail 110, and the roller is rotatably disposed in the groove, with the circumference of the roller making rolling contact with the side wall of the slide rail. It is understood that the arrangement of the rolling element 112 on the side wall of the slide rail may be the same as, similar to, or similar to the arrangement on the side wall of the slide rail 110. For details, please refer to the detailed description of the arrangement on the side wall of the slide rail 110 in the foregoing embodiments of this application, which will not be repeated in the embodiments of this application.

[0094] In some examples, the rolling element 112 may include balls. The balls may be involved in grooves formed in the sidewall of the slide rail 110, and the balls may roll in contact with the sidewall of the slide rail.

[0095] In some examples of embodiments of this application, a rolling element 112 is provided on the side wall of one of the slide rail and the slide groove 110, and the rolling element 112 rolls in contact with the side wall of the other slide rail and the slide groove 110. In this way, the sliding friction between the slide rail and the side wall of the slide groove 110 can be converted into rolling friction, which can improve the smoothness of the slide rail sliding along the slide groove 110, thereby improving the smoothness and stability of the measuring bracket 40 sliding on the measuring base plate 10.

[0096] In some examples, refer to Figure 1 and Figure 5 As shown, along the extension direction of the turnout sleeper (e.g.) Figure 1 (in the direction shown by the x-axis), the length of the slide groove 110 can be greater than the length of the slide rail.

[0097] In some examples, refer to Figure 2 and Figure 3 As shown, multiple rolling elements 112 can be provided, and multiple rolling elements 112 can be arranged along the length direction of the slide rail on the side wall of the slide groove 110.

[0098] In some examples, multiple rolling elements 112 can be arranged at intervals on the sidewall of the slide rail 110. The interval between two adjacent rolling elements 112 can be less than the length of the slide rail. That is, the sidewall of the slide rail can contact at least two rolling elements 112 at the same time, which can improve the stability of the contact between the slide rail and the rolling elements 112, and improve the stability of the measuring bracket 40 moving on the measuring base plate 10.

[0099] In some examples, refer to Figure 1 As shown, a fixing buckle 421 may be provided in the middle of the first support member 420. The fixing buckle 421 may be a ring or semi-ring buckle welded to the middle of the first support member 420.

[0100] In some examples, the retaining buckle 421 can be connected to the first connector 50. That is, the end of the first connector 50 that is connected to the measuring bracket 40 can be connected to the middle of the first support 420 through the retaining buckle 421.

[0101] In some examples, the first connector 50 can be detachably connected to the retaining clip 421. For instance, an annular latch can be provided at the end of the first connector 50 that connects to the retaining clip 421, allowing the first connector 50 to be detachably connected to the retaining clip 421 via the annular latch. This allows for quick disassembly of the first connector 50 and the measuring bracket 40 when maintenance of the turnout switch rail displacement measuring equipment is required, improving maintenance efficiency.

[0102] In some examples of embodiments of this application, a fixing buckle 421 is provided in the middle of the first support member 420, and the first connecting member 50 is connected to the fixing buckle 421. In this way, during the turnout rail replacement operation, the turnout switch machine can apply force to the middle of the first support member 420 through the first connecting member 50, so that the force on the measuring bracket 40 is evenly applied to the measuring bracket 40, which can improve the stability of the measuring bracket 40 moving on the measuring base plate 10.

[0103] In some examples, refer to Figure 1 and Figure 2 As shown, the measuring bracket 40 may include a third support member 440. One end of the third support member 440 may be connected to the middle of the first support member 420.

[0104] In some examples, the end of the third support 440 connected to the middle of the first support 420 may be located above the retaining buckle 421.

[0105] In some examples, the other end of the third support 440 may be connected to the end of the second support 430 facing the turnout switch rail 20.

[0106] In some examples, the end of the third support 440 that is connected to the first support 420 can be welded to the first support 420 as a single piece.

[0107] In some examples, the third support 440, which is connected to one end of the second support 430, can be welded to the second support 430 as a single unit.

[0108] In some examples of embodiments of this application, a third support member 440 is provided, with one end of the third support member 440 connected to the middle of the first support member 420 and the other end of the third support member 440 connected to the end of the second support member 430 facing the turnout switch rail 20. In this way, the third support member 440, the first support member 420 and the second support member 430 can be constructed to form a triangular structure. Thus, the third support member 440 can play a supporting role on the end of the second support member 430 facing the turnout switch rail 20, which can improve the stability of the second support member 430, that is, improve the stability of the displacement sensor provided on the end of the second support member 430 facing the turnout switch rail 20, and improve the accuracy of the displacement sensor in measuring the vibration displacement of the turnout switch rail 20.

[0109] In some examples, refer to Figure 1 and Figure 2 As shown, a mounting plate 431 can be provided at the end of the measuring bracket 40 facing the turnout switch rail 20. The displacement sensor can be fixed on the mounting plate 431.

[0110] In some examples, the mounting plate 431 may be fixed to the end of the second support 430 facing the switch point rail 20.

[0111] In some examples, the third support 440 can be fixedly connected to the mounting plate 431.

[0112] In some examples, the displacement sensor can be fixed to the mounting plate 431 by connecting components such as bolts, screws or nuts.

[0113] In some examples of embodiments of this application, a mounting plate 431 is provided at one end of the measuring bracket 40 facing the turnout switch rail 20, and the displacement sensor is fixed to the mounting plate 431. This increases the contact area between the displacement sensor and the measuring bracket 40, improves the stability of the displacement sensor's installation and fixing, and thus improves the accuracy of the displacement sensor's measurement of the vibration displacement of the turnout switch rail 20.

[0114] 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.

[0115] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A switch point rail displacement measuring device, characterized in that, include: Measuring base plate (10), the measuring base plate (10) is used to be fixed on the turnout sleeper; Measuring bracket (40), which is movably mounted on the measuring base plate (10), and moves on the measuring base plate (10) along the extension direction of the turnout sleeper; A displacement sensor is mounted on the measuring bracket (40), and the sensor probe of the displacement sensor is opposite to the turnout switch rail (20); A first connector (50) is connected at one end to the measuring bracket (40), and at the other end to the turnout switch machine.

2. The turnout switch rail displacement measuring device according to claim 1, characterized in that, The measuring bracket (40) includes: A measuring slide plate (410) is slidably disposed on the measuring base plate (10) along the extension direction of the turnout sleeper. The first support member (420) is disposed longitudinally on the measuring slide plate (410); the first connector (50) is connected to the first support member (420); The second support member (430) is located at the end of the first support member (420) away from the measuring slide plate (410), and the second support member (430) extends toward the turnout switch rail (20). The displacement sensor is located at the end of the second support member (430) toward the turnout switch rail (20).

3. The turnout switch rail displacement measuring device according to claim 2, characterized in that, One of the measuring slide plate (410) and the measuring base plate (10) is provided with a slide rail, and the other of the measuring slide plate (410) and the measuring base plate (10) is provided with a slide groove (110). The slide rail is located in the slide groove (110) and can slide along the slide groove (110). Along the extension direction of the turnout sleeper, the two ends of the slide groove (110) are provided with buffer members (111), which are used to selectively abut against the end of the slide rail.

4. The turnout switch rail displacement measuring device according to claim 3, characterized in that, One of the slide rails and the slide groove (110) has a rolling element (112) on its side wall, and the rolling element (112) rolls in contact with the side wall of the other slide rail and the slide groove (110).

5. The turnout switch rail displacement measuring device according to claim 4, characterized in that, Along the extension direction of the turnout sleeper, the length of the groove (110) is greater than the length of the slide rail; multiple rolling elements (112) are provided, and multiple rolling elements (112) are arranged on the side wall of the groove (110) along the length direction of the groove (110).

6. The turnout switch rail displacement measuring device according to claim 3, characterized in that, The buffer (111) includes either a spring sheet or a compression spring.

7. The turnout switch rail displacement measuring device according to claim 2, characterized in that, The first support member (420) has a fixing buckle (421) in the middle, and the fixing buckle (421) is connected to the first connector (50).

8. The turnout switch rail displacement measuring device according to claim 2, characterized in that, The measuring bracket (40) also includes a third support (440), one end of which is connected to the middle of the first support (420), and the other end of which is connected to the end of the second support (430) facing the turnout switch rail (20).

9. The turnout switch rail displacement measuring device according to any one of claims 1-8, characterized in that, The measuring bracket (40) has a mounting plate (431) at one end facing the turnout switch rail (20), and the displacement sensor is fixed to the mounting plate (431).

10. The turnout switch rail displacement measuring device according to any one of claims 1-8, characterized in that, The displacement sensor includes a contact displacement sensor, the sensor probe of which contacts the side wall of the turnout switch rail (20).

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