Steel rail profile measuring device

Abstract

The utility model provides a steel rail profile measuring device, and belongs to the technical field of steel rail measurement. In order to solve the problems that steel rail profile measurement is low in convenience and high in cost, the utility model provides a steel rail profile measurement device which comprises a steel rail profile measurement instrument and an auxiliary tool. The back of the steel rail profile measuring instrument is provided with a first connecting part, and the side is provided with a second connecting part. The auxiliary tool comprises a sliding base and a positioning rod, the sliding base is provided with a third connecting part and a fourth connecting part, and the two ends of the positioning rod are provided with a connecting end and a positioning end respectively; the sliding base is used for being detachably connected with the first connecting part of the steel rail profile measuring instrument through the third connecting part, and is detachably connected with the connecting end of the positioning rod through the fourth connecting part; or the positioning rod is used for being detachably connected with the second connecting part of the steel rail profile measuring instrument through the connecting end. Through different combinations of the same steel rail profile measuring instrument, the sliding base and the positioning rod, the steel rail measuring convenience is improved, and the cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of rail measurement, and particularly to a rail profile measurement device. Background Art

[0002] A turnout is a line connection device that enables rolling stock to transfer from one track to another, and it is also one of the weak links of the track. When a train passes through a turnout, the turnout frog and switch rail cooperate to jointly guide the train wheelset from one track to another. The frog profile is the shape and size of the cross-section of the frog heart and wing rail in the turnout frog part, which plays a crucial role in the safety and stability of the train passing through the turnout. The detection of the frog profile is one of the key projects in the daily maintenance of railways.

[0003] The existing frog profile measurement methods include contact measurement and non-contact measurement methods. The contact measurement method is divided into profile measurement and digital display ruler measurement. Both require manual measurement of each key point on the profile of the point to be measured with a measuring tool, resulting in low detection efficiency, insufficient accuracy, and being greatly affected by human factors; the non-contact measurement method needs to use lasers and cameras to detect the rail cross-section profile, and analyzes the profile wear degree by comparing the captured profile with the standard profile.

[0004] Although non-contact measurement has high precision, fast detection speed, and convenient operation, non-contact measurement is affected by the distance and size of the detected object. Since the standard section width of the frog is greater than 300 mm, the existing non-contact push-type or point-measurement devices for measuring the frog profile are large in size, heavy in weight, and extremely inconvenient for on-site carrying and measurement; at the same time, the standard section width of the stock rail is much smaller than that of the frog. Therefore, different measuring devices need to be prepared, resulting in inconvenient measurement and increased costs. Summary of the Utility Model

[0005] The purpose of this application is to solve the problems in the prior art that the convenience of rail profile measurement is relatively low and the cost is relatively high. Therefore, this application provides a rail profile measurement device, which realizes compatible measurement of different regional positions of the track through different combinations of the same rail profile measuring instrument with a sliding base and a positioning rod, improves the convenience of rail measurement, and reduces the cost.

[0006] An embodiment of this application provides a rail profile measurement device, including a rail profile measuring instrument and an auxiliary tool detachably connected to the rail profile measuring instrument;

[0007] A first connection part is arranged on the back of the rail profile measuring instrument, a second connection part is arranged on the side, and a positioning panel for contacting the top surface of the rail and supporting the rail profile measuring instrument is arranged on the bottom surface;

[0008] The auxiliary tooling includes a sliding base and a positioning rod. The sliding base is provided with a third connecting part and a fourth connecting part. Both ends of the positioning rod are respectively provided with a connecting end and a positioning end.

[0009] The sliding base is used for detachably connecting with the first connecting part of the rail profile measuring instrument through the third connecting part, and detachably connecting with the connecting end of the positioning rod through the fourth connecting part; or, the positioning rod is used for detachably connecting with the second connecting part of the rail profile measuring instrument through the connecting end; and,

[0010] The sliding base is used for being placed on the turnout frog. The third connecting part is slidably connected with the sliding base and can slide transversely along the sliding base, so that the rail profile measuring instrument can move transversely along the turnout frog.

[0011] The positioning end of the positioning rod is used for being placed on the stock rail opposite to the rail on which the rail profile measuring instrument is placed to support the positioning rod.

[0012] By adopting the above technical solution, through different combinations of the same rail profile measuring instrument with the sliding base and the positioning rod, the compatibility of measuring the turnout frog and the stock rail of the railway is realized, the convenience of rail measurement is improved, and the cost is reduced; at the same time, in both measurements, double positioning of both sides of the track is realized, so as to ensure that the measurement reference position is parallel to the top surface of the track, that is, the same as the driving reference surface of the locomotive and rolling stock on the track, thereby improving the measurement accuracy and accuracy; and, by placing the rail profile measuring instrument, the sliding base and the positioning end of the positioning rod on the corresponding tracks, and the detachable connection of multiple connecting parts, the positioning is convenient and the operation is convenient and reliable.

[0013] In some embodiments, the rail profile measuring instrument is provided with a measuring instrument positioning assembly. The measuring instrument positioning assembly includes two positioning members. The two positioning members are used for synchronously abutting against the same side surface of the rail, so that the rail profile measuring instrument is parallel to the rail.

[0014] The positioning member is rotatably connected with the rail profile measuring instrument, so that the positioning member can be flipped to a position where its lowest point is flush with the bottom surface of the rail profile measuring instrument.

[0015] With the above technical solution, the two positioning members of the rail profile measuring instrument are abutted against the same side of the rail, ensuring that the rail profile measuring instrument is longitudinally parallel to the rail, that is, simulating the driving state of the locomotive and rolling stock on the rail, thereby improving the measurement accuracy and precision. Especially in the measurement of the basic rail profile, due to the limited area of the top surface of the basic rail and the limited contact area between the positioning panel of the rail profile measuring instrument and it, the rail profile measuring instrument not only realizes parallelism with the rail on different surfaces through the cooperation of its positioning members and positioning rods, but also improves its stability when placed on the rail, thus further improving the measurement accuracy and precision.

[0016] In some embodiments, the positioning member includes a mounting seat, a first abutting portion, and a second abutting portion. The mounting seat is fixedly connected to the rail profile measuring instrument. The first abutting portion is rotatably connected to the mounting seat through a rotating shaft and can be flipped and embedded into the mounting seat. The second abutting portion is rotatably connected to the end of the first abutting portion and can be flipped and embedded into the first abutting portion.

[0017] With the above technical solution, the positioning seat facilitates the installation of the positioning member as a whole with the rail profile measuring instrument and is also convenient for overall replacement and maintenance, improving the installation and maintenance convenience; moreover, through the second abutting portion, the abutting area can be extended, thereby further improving the abutting stability and having a wider applicability.

[0018] In some embodiments, a groove and an extension portion are sequentially arranged at the end of the second abutting portion along the direction away from the rotational connection with the first abutting portion. The groove is adapted to the rotating shaft. The extension portion extends along the width direction of the second abutting portion, and when the second abutting portion is embedded into the first abutting portion, the groove is clamped with the rotating shaft, and the extension portion abuts against the inner wall of the mounting seat.

[0019] With the above technical solution, through the groove and the extension portion arranged at the end of the second abutting portion, the stability of the second abutting portion when flipped and retracted is improved, facilitating operation.

[0020] In some embodiments, both the second connecting portion and the fourth connecting portion include a connecting shaft. The connecting shaft includes a shaft body and a pin shaft vertically arranged at one end of the shaft body;

[0021] The connecting end of the positioning rod includes a connecting cylinder. The connecting cylinder includes a cylinder body and a limiting plate arranged at one end of the cylinder body. The limiting plate is provided with a through hole adapted to the pin shaft for the pin shaft to pass through the limiting plate from the cylinder body; a limiting component is arranged on the side of the limiting plate located outside the cylinder body and away from the through hole to limit the continuous rotation of the pin shaft passing through the limiting plate.

[0022] By adopting the above technical solution, the connection shaft and the connection tube are matched, which is not only convenient for use and disassembly, but also can ensure the repeatability of installation accuracy, as well as the overall linearity and rigidity, thereby ensuring the measurement benchmark.

[0023] In some embodiments, the connecting shaft further comprises a shaft cylinder sleeved on the outside of the shaft body, the pin extends out of the shaft cylinder, a second elastic member is arranged between the shaft cylinder and the end of the shaft body away from the pin, and the second elastic member applies a driving force to the shaft body, so that the shaft body has a tendency to drive the pin to move toward the shaft cylinder;

[0024] The side surface of the limiting plate located outside the barrel body has a guide surface, and the guide surface is used to guide the pin shaft from the through hole to the limiting assembly.

[0025] In some embodiments, the sliding base includes a base bracket, and a base positioning assembly is disposed on the base bracket;

[0026] The base positioning assembly includes a plurality of dovetail grooves arranged at the bottom of the base bracket and at least one first positioning block adapted to the dovetail grooves, the plurality of dovetail grooves are arranged in sequence and spaced apart along the lateral direction of the turnout frog, and the first positioning block is used to be plugged into the dovetail grooves and contact the top surface of the turnout frog to support the rail profile measuring instrument.

[0027] By adopting the above technical solution, the sliding base is brought into contact with the track and supported by the first positioning block plugged into the base bracket, which is convenient for replacement when the contact surface is worn, thereby improving maintenance convenience; and the first positioning block is connected by a dovetail groove, which not only has a good positioning effect, but also facilitates the installation and disassembly of the first positioning block.

[0028] In some embodiments, the sliding base includes a base bracket, one side of the base bracket is slidably provided with the third connecting portion, and the other side is rotatably provided with a clamping assembly;

[0029] The clamping assembly includes a guide mechanism whose end is rotatably connected to the base bracket, two clamping blocks slidably arranged on the guide mechanism, and two first elastic members arranged on opposite sides of the clamping blocks. The two clamping blocks have a tendency to slide toward each other under the action of the corresponding first elastic members and are used to clamp the heart rail of the turnout frog.

[0030] With the above technical solution, the clamping assembly is used to clamp the switch rail in the middle position of the turnout frog, improving the stability of the sliding base placed on the turnout frog and the sliding stability of the rail profile measuring instrument on the sliding base, thereby improving the measurement accuracy and precision. Moreover, the clamping assembly is rotatable, so it can be turned over and stored on the base bracket, improving the compactness of the sliding base and facilitating portability and transportation.

[0031] In some embodiments, the guiding mechanism includes a mounting frame, a guiding rail and a guiding rod disposed on the mounting frame, and both the guiding rail and the guiding rod extend along the transverse direction of the turnout frog.

[0032] The end of the mounting frame is rotatably connected to the base bracket.

[0033] The clamping block is sleeved on the guiding rod and slidably connected to the guiding rail.

[0034] The first elastic member is a spring, and the first elastic member is sleeved on the guiding rod.

[0035] In some embodiments, the rail profile measuring instrument includes a base, a housing covering the base, and a handle disposed on the top of the housing. The base is made of aluminum alloy, the housing is made of carbon fiber, and the positioning panel is made of alloy steel with a hardness greater than 55HRC.

[0036] With the above technical solution, the portability of the rail profile measuring instrument is improved through the handle on the top of the housing. Moreover, through the selection of the materials of the base and the housing of the measuring instrument, both the strength of the measuring instrument is ensured to effectively protect the internal components, and the overall weight is controlled to further improve the portability. In particular, through the selection of the material and hardness of the positioning panel disposed on the base, the service life of the measuring instrument is further improved, and it is also convenient for replacement and maintenance after wear.

[0037] Other features and corresponding beneficial effects of this application are described and explained in the following part of the specification, and it should be understood that at least some of the beneficial effects are obvious from the description in the specification of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic structural diagram of the rail profile measuring instrument in Embodiment 1 of this application;

[0039] FIG. 2(a) is a schematic structural diagram of the measuring instrument positioning assembly of the rail profile measuring instrument in Embodiment 1 of this application;

[0040] FIG. 2(b) is a fully expanded structural diagram of the measuring instrument positioning assembly of the rail profile measuring instrument in Embodiment 1 of this application;

[0041] Figure 3 Schematic diagram of the combined use state of the rail profile measuring instrument, sliding base and positioning rod in Embodiment 1 of the present application;

[0042] Figure 4 Schematic diagram of the combined use state of the rail profile measuring instrument and positioning rod in Embodiment 1 of the present application;

[0043] Figure 5 Schematic diagram of the structure of the sliding base in Embodiment 1 of the present application;

[0044] Figure 6 Another perspective schematic diagram of the structure of the sliding base in Embodiment 1 of the present application;

[0045] Figure 7 Schematic diagram of the structure of the positioning rod in Embodiment 1 of the present application;

[0046] Figure 8 Schematic cross-sectional structure diagram of the separable connection component in Embodiment 1 of the present application.

[0047] Explanation of reference numerals:

[0048] 1, rail profile measuring instrument;

[0049] 10, base; 101, laser emission window; 102, camera window; 103, positioning panel;

[0050] 11, housing; 111, first connection part; 1111, adapter plate; 1112, insertion block; 112, second connection part;

[0051] 12, handle; 13, positioning member; 131, mounting seat; 132, first abutting part; 133, second abutting part; 1331, groove; 1332, extension part;

[0052] 2, sliding base; 20, base bracket;

[0053] 21, base positioning component; 211, first positioning block; 2111, first positioning surface; 212, dovetail groove; 213, locking screw; 214, blocking block;

[0054] 22, sliding component; 221, slide rail; 222, slider; 2221, insertion slot;

[0055] 23, clamping component; 231, mounting frame; 232, guide rail; 233, guide rod; 234, clamping block; 2341, clamping surface; 235, first elastic member;

[0056] 24, fourth connection part;

[0057] 3. Positioning rod; 31. Second positioning block; 311. Second positioning surface

[0058] 4. Separable connection assembly; 41. Connection shaft; 411. Shaft main body; 412. Pin shaft; 42. Connection cylinder; 421. Cylinder main body; 422. Limiting plate; 4221. Limiting assembly; 43. Shaft cylinder; 44. Second elastic member Detailed implementation manners

[0059] The following specific embodiments illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiments, this does not mean that the features of this application are limited to this implementation manner. On the contrary, the purpose of introducing the application in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present application. To provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, to avoid confusing or obscuring the key points of the present application, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other

[0060] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings

[0061] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application

[0062] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the creation of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0063] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0064] To make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the drawings.

[0065] It should be noted that the track generally includes a basic track area and a turnout frog area. The basic track area is the area where locomotives and rolling stocks normally run in the railway, including two parallel stock rails; the turnout frog area is the area where locomotives and rolling stocks change tracks in the railway, including a turnout frog composed of a heart rail and two wing rails on both sides (i.e., the first wing rail and the second wing rail), and the stock rails on the opposite side. The left and right wheels of the locomotive and rolling stock are respectively located on the turnout frog and the stock rails to realize the movement of the locomotive and rolling stock.

[0066] The profile of the turnout frog is relatively special, its width is slightly greater than 300 mm, the width of the stock rail is generally 50 - 75 mm, while the field of view of the rail profile measuring instrument commonly used to measure the stock rail is usually about 100 - 120 mm, which is far from sufficient to obtain the rail profile by the conventional one-time mapping method.

[0067] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the rail profile measuring instrument 1 in the embodiment of the present application.

[0068] Based on the rail profile measuring instrument commonly used to measure the stock rail, the rail profile measuring instrument 1 in the embodiments of the present application has been improved to enhance portability and the convenience of assembling with auxiliary tooling, etc.

[0069] In one embodiment, the rail profile measuring instrument 1 includes a base 10 and a housing 11 covering the base 10. Preferably, a handle 12 (as Figure 3 shown) is also provided at the top of the housing 11, which facilitates the on-site inspectors to carry and measure, especially for sliding the measuring instrument.

[0070] In one embodiment, a laser emitting unit and a camera unit are provided on the base 10. The laser emitting unit is used to emit laser towards the rail to display the corresponding profile, and the camera unit is used for profile images.

[0071] By arranging the laser emitting unit and the camera unit on the base 10 of the rail profile measuring instrument 1, the center of gravity of the rail profile measuring instrument 1 is reduced, thereby improving its stability, further enhancing the reliability of the acquired images, and improving the measurement accuracy.

[0072] In one embodiment, the camera unit is used to obtain a first image, a second image, and a third image, that is, the rail profile is displayed by laser, and the laser profile image is obtained, and then the laser contour line is spliced, reducing the splicing difficulty and obtaining a full-section profile diagram. It can be understood that the field of view selection of the rail profile measuring instrument 1 only needs to satisfy that a full-section profile can be obtained by three shootings.

[0073] In one embodiment, the base 10 is made of aluminum alloy. Aluminum alloy is a widely used metal material in industry, with light weight, high strength, and high economy. The base 10 is made of aluminum alloy and combined with machining manufacturing processes, which can provide a stable and high-strength reference platform for the fixation of the laser emitting unit and the camera unit.

[0074] In one embodiment, the housing 11 is made of carbon fiber. Carbon fiber has a small density, high strength, and corrosion resistance, which can not only reduce the weight of the measuring instrument, facilitate the on-site carrying and measurement by the staff, but also ensure the overall aesthetics and overall strength of the measuring instrument.

[0075] It can be understood that the base 10 is connected with a laser emitting window 101 and a camera window 102 to achieve measurement.

[0076] In one embodiment, both the laser emission window 101 and the camera window 102 are covered with heating glass. The laser emission unit emits line laser through the heating glass, and the laser contour is captured by the camera unit. The two are used in cooperation to establish a triangular relationship for measuring the rail profile. The heating function of the heating glass can be turned on in an environment with a large temperature and humidity difference that causes the glass to fog up and affect the shooting line of sight, and for example, it will automatically turn off after running for 10 minutes by itself.

[0077] In one embodiment, a function interface panel of the measuring instrument is further provided on the base 10 for a hidden design. For example, the WiFi antenna and the heating glass switch are designed at the bottom of the base 10 without affecting the function. The WiFi antenna mainly enhances the wireless transmission signal.

[0078] In one embodiment, a lithium battery is further provided on the base 10, and the measuring instrument can be turned on and off through the main switch.

[0079] In one embodiment, external function interfaces are provided on the side and the back of the housing 11 for easy use and to ensure the aesthetic appearance of the instrument without affecting the overall function. The external function interfaces include but are not limited to an external network port, a main switch, a charging port, and a power display board.

[0080] In one embodiment, a positioning panel 103 for contacting the top surface of the rail and supporting the rail profile measuring instrument 1 is provided on the bottom surface of the rail profile measuring instrument 1. The bottom surface of the positioning panel 103 is the third positioning surface. Preferably, the positioning panel 103 is made of alloy steel material and has a hardness greater than 55 HRC to meet the requirements of wear on the contact surface during long-term testing. Usually, quenching and tempering can be used to make its hardness meet the standard, and it is convenient for replacement and maintenance to extend the service life of the measuring instrument.

[0081] Please refer to Figure 2(a)-2(b) , Fig. 2(a) is a schematic structural diagram of the measuring instrument positioning component of the rail profile measuring instrument 1 in the embodiment of the present application; Fig. 2(b) is a fully unfolded structural diagram of the measuring instrument positioning component of the rail profile measuring instrument 1 in the embodiment of the present application.

[0082] In one embodiment, the rail profile measuring instrument 1 is provided with a measuring instrument positioning component. The measuring instrument positioning component includes two positioning members 13. The two positioning members 13 are used to simultaneously abut against the same side surface of the rail, usually the inner side surface. By determining a straight line with two points, the rail profile measuring instrument 1 is made parallel to the rail. Preferably, the positioning member 13 abuts 16 mm downward from the top surface of the rail.

[0083] In one embodiment, the positioning member 13 is rotatably connected to the rail profile measuring instrument 1, so that the positioning member 13 can be flipped to its lowest point flush with the bottom surface of the rail profile measuring instrument 1 for convenient storage and to avoid damage to the positioning member 13. At the same time, it is convenient to retract when measuring the turnout frog profile to avoid affecting the sliding of the measuring instrument.

[0084] In one embodiment, the positioning member 13 includes a mounting base 131, a first abutting portion 132 and a second abutting portion 133. The mounting base 131 is fixedly connected to the rail profile measuring instrument 1. The first abutting portion 132 is rotatably connected to the mounting base 131 through a rotating shaft and can be flipped and embedded into the mounting base 131. The second abutting portion 133 is rotatably connected to the end of the first abutting portion 132 and can be flipped and embedded into the first abutting portion 132. The second abutting portion 133 can extend the abutting area to improve the abutting stability, thereby ensuring that the rail profile measuring instrument 1 is parallel to the rail.

[0085] In one embodiment, a groove 1331 and an extension portion 1332 are sequentially arranged at the end of the second abutting portion 133 in the direction away from the rotation connection with the first abutting portion 132. The groove 1331 is adapted to the rotating shaft. The extension portion 1332 extends along the width direction of the second abutting portion 133. When the second abutting portion 133 is embedded into the first abutting portion 132, the groove 1331 is clamped with the rotating shaft, and the extension portion 1332 abuts against the inner wall of the mounting base 131, thereby improving the stability when the second abutting portion 133 is flipped and retracted.

[0086] In one embodiment, the rail profile measuring instrument 1 contacts the rail through an auxiliary tooling to achieve measurement, thereby improving the measurement accuracy.

[0087] The auxiliary tooling includes a sliding base 2 and a positioning rod 3.

[0088] Please refer to Figure 3 , Figure 3 which is a schematic diagram of the combined use state of the rail profile measuring instrument 1, the sliding base 2 and the positioning rod 3 in the embodiment of the present application, that is, a schematic diagram of a use state of the rail profile measuring device.

[0089] In one embodiment, the turnout frog profile measurement of the railway includes a rail profile measuring instrument 1, a sliding base 2 and a positioning rod 3.

[0090] The rail profile measuring instrument 1 is connected to a sliding base 2, and the sliding base 2 is horizontally connected to a positioning rod 3. Preferably, all are detachable connections, so as to facilitate carrying and transportation. The sliding base 2 may also be provided with a handle 12 to further facilitate carrying and transportation.

[0091] At this time, if the rail profile measuring instrument 1 has a positioning member 13, the positioning member 13 can be flipped and retracted to avoid affecting the measurement.

[0092] The rail profile measuring instrument 1 is slidably connected to the sliding base 2 and can move transversely along the turnout frog, and is used to obtain the rail profile image at a preset position, thereby reducing the requirement for the working range of the rail profile measuring instrument 1. The working range of the rail profile measuring instrument 1 is positively correlated with its volume, so a small-volume rail profile measuring instrument 1 can be used, such as a conventional rail profile measuring instrument 1 for stock rails. Furthermore, the measurement efficiency, convenience, and accuracy can be taken into account. At the same time, a full-section profile map can be obtained by stitching multiple images, and the stitching method can adopt the image stitching method in the prior art or the method described in Embodiment 2 to improve the stitching reliability.

[0093] When the rail profile measuring instrument 1 is connected to the sliding base 2 and the sliding base 2 is horizontally connected to the positioning rod 3, the two sides of the rail can be positioned respectively through the sliding base 2 and the positioning rod 3, ensuring that the whole sliding base 2 is parallel to the track, thereby providing the same reference position as that of the machine tool vehicle for the rail profile measuring instrument, and further improving the accuracy of the obtained image and the measurement reliability.

[0094] In one embodiment, the width of the sliding base 2 is substantially the same as the maximum width of the turnout frog, so that the sliding base 2 can be stably placed in any longitudinal direction of the turnout frog and provides a transverse sliding basis for the measuring instrument to measure the full-section profile of the turnout frog.

[0095] Please refer to Figure 4 , Figure 4 which is a schematic diagram of the combined use of the rail profile measuring instrument 1 and the positioning rod 3 in the embodiment of the present application, that is, another schematic diagram of the use state of the rail profile measuring device.

[0096] In one embodiment, the rail profile measuring instrument 1 is directly horizontally connected to the positioning rod 3, that is, the rail profile measuring instrument 1 does not need to slide transversely along the rail to obtain multiple images for stitching. For example, to obtain the profile of the stock rail, at this time, the rail profile measuring instrument 1 is placed on one side of the rail, and the positioning rod 3 is placed on the other side of the rail through the second positioning surface 311, which can also ensure that the whole sliding base 2 is parallel to the track.

[0097] At this time, if the rail profile measuring instrument 1 has a positioning member 13, the positioning member 13 can extend out to abut against the rail.

[0098] Please refer to again Figures 3-4 . Through different combinations of the same rail profile measuring instrument with the sliding base and the positioning rod in the embodiment of the present application, the compatibility of measuring different regional positions of the track is realized, the convenience of rail measurement is improved, and the cost is reduced.

[0099] Please refer to Figures 5-6 , Figure 5 which is a schematic diagram of the structure of the sliding base 2 in the embodiment of the present application;Figure 6 Another perspective structural schematic diagram of the sliding base 2 in the embodiments of the present application.

[0100] In one embodiment, the sliding base 2 includes a base bracket 20.

[0101] In one embodiment, the sliding base 2 includes a first positioning surface 2111, which is used to contact the top surface of the turnout frog and support the base bracket 20, that is, support the sliding base 2.

[0102] In one embodiment, the first positioning surface 2111 of the sliding base 2 can move transversely along the turnout frog, and the first positioning surface 2111 and the third positioning surface are on the same straight line extending longitudinally along the turnout frog, further improving the stability of the rail profile measuring instrument 1 slidably disposed on the sliding base 2.

[0103] In one embodiment, when measuring the full-section profile of the turnout frog, the first positioning surface 2111 contacts the top surface of the switch rail in the turnout frog, so as to ensure that the sliding base 2 provides a unified reference for the measuring instrument, facilitating the stitching of multiple images.

[0104] In one embodiment, when measuring the switch rail depression value, the sliding base 2 may include two first positioning surfaces 2111, which are respectively placed on the left and right wing rails, so as to measure the switch rail depression value, etc. within a reference plane by using the principle that two points determine a straight line. And at this time, the measuring instrument only needs to use the sliding base 2 to measure this data, without the positioning rod 3.

[0105] In other alternative embodiments, when measuring the switch rail depression value, the measuring instrument, the sliding base 2 and the positioning rod 3 are also used in cooperation, that is, the sliding base 2 is only provided with one first positioning surface 2111, and two points determine a straight line through the sliding base 2 and the positioning rod 3.

[0106] In one embodiment, when the rail profile measuring instrument 1 is connected to the sliding base 2 and the sliding base 2 is horizontally connected to the positioning rod 3, the first positioning surface 2111 and the second positioning surface 311 are on the same straight line extending transversely along the turnout frog, so as to improve the accuracy of imitating the state of the rolling stock on the rail and further improve the measurement reliability.

[0107] In one embodiment, when the rail profile measuring instrument 1 is directly horizontally connected to the positioning rod 3, the third positioning surface and the second positioning surface 311 are on the same straight line extending transversely along the turnout frog.

[0108] In a specific embodiment, when in use, the sliding base 2 needs to be placed on the switch rail and clamped to the switch rail to keep the sliding base 2 stable. At the same time, the positioning rod 3 is placed on the other end rail of the track to maintain the overall balance. Finally, the rail profile measuring instrument 1 is placed on the sliding base 2, and it is moved three times in sequence from the outside to the inside and the cross-section contour of the frog is photographed to extract the contour profile, realizing the multi-point measurement method. When analyzing the rail profile state, it can be analyzed specifically according to the images at different positions, or multiple images can be stitched together to obtain the full-section profile diagram, and overall analysis can also be realized. The stitching of the images can adopt the existing technology.

[0109] In one embodiment, a base positioning assembly 21 is provided on the base bracket 20, and the base positioning assembly 21 includes a first positioning surface 2111. More specifically, the base positioning assembly 21 includes a first positioning block 211, and the first positioning block 211 has a first positioning surface 2111.

[0110] In one embodiment, the base positioning assembly 21 includes a plurality of dovetail grooves 212 provided at the bottom of the base bracket 20 and at least one first positioning block 211 adapted to the dovetail grooves 212. The plurality of dovetail grooves 212 are arranged at intervals in sequence along the transverse direction of the turnout frog. The first positioning block 211 has a first positioning surface 2111, that is, the first positioning surface is provided by the first positioning block detachably connected to the base bracket, which is convenient for replacement when the first positioning surface is worn, improving the maintenance convenience. And, the dovetail groove is used to connect the first positioning block, which not only has a good positioning effect but also facilitates the installation and disassembly of the first positioning block.

[0111] Preferably, the first positioning block 211 is further fastened by a locking screw 213, and it is not easy to fall off.

[0112] In one embodiment, the dovetail groove 212 is horizontally arranged, and a stop block 214 is provided at one end to improve the accuracy of the insertion position of the first positioning block 211.

[0113] In one embodiment, the first positioning block 211 is a magnet, that is, the first positioning surface 2111 is a magnetic attraction surface, so that the sliding base 2 is magnetically connected to the turnout frog through the first positioning block 211, improving the stability of the sliding base 2 placed on the turnout frog and being convenient for operation.

[0114] In one embodiment, a sliding assembly 22 is provided on the base bracket 20. The sliding assembly 22 is used for sliding connection with the rail profile measuring instrument 1, and enables the rail profile measuring instrument 1 to move along the transverse direction of the turnout frog, so as to obtain the rail profile image at a preset position.

[0115] In one embodiment, the sliding assembly 22 includes a sliding rail 221 extending transversely along the turnout fork and a slider 222 slidably connected to the sliding rail 221. The rail profile measuring instrument 1 is connected to the slider 222, that is, the rail profile measuring instrument 1 is slidably connected to the sliding base 2 through the cooperation of the sliding rail 221 and the slider 222. The structure is simple and the sliding reliability is high.

[0116] In one embodiment, the slide rail 221 is provided with a first mark, a second mark and a third mark along its extension direction.

[0117] When the slider 222 slides to the first mark, the rail profile measuring instrument 1 obtains the first image; when the slider 222 slides to the second mark, the rail profile measuring instrument 1 obtains the second image; when the slider 222 slides to the third mark, the rail profile measuring instrument 1 obtains the third image, that is, the above three preset positions, thereby reducing the difficulty of operation, and the staff can directly correspond to the operation, and through the unified position standard, the reliability of the rail profile measuring instrument 1 sliding and obtaining images is improved, thereby improving the measurement efficiency, convenience and accuracy.

[0118] In one embodiment, a through hole is provided on the slider 222, and the first mark, the second mark and the third mark are all holes provided on the slide rail 221. The slider 222 slides to connect the two holes, that is, slides to the designated position. This method is easy to operate and the marks are not easy to wear.

[0119] In other alternative embodiments, the first mark, the second mark and the third mark are scored lines or color marks.

[0120] In one embodiment, two slide rails 221 are spaced apart from each other along the height direction of the base bracket 20 , and the slider 222 is slidably connected to both the slide rails 221 , thereby improving the sliding stability.

[0121] In one embodiment, a dovetail-shaped plug-in slot 2221 is provided on the slider 222, and an adapter plate 1111 is provided on the back of the rail profile measuring instrument 1. A plug-in block 1112 adapted to the plug-in slot 2221 is provided on the side of the adapter plate 1111 away from the rail profile measuring instrument 1, so that the rail profile measuring instrument 1 and the slider 222 can be plugged in, which has a good positioning effect, facilitates the assembly and separation of the two, and is easy to carry and transport. Preferably, the plug-in block 1112 is inserted through a locking screw 213 to further improve the fastening effect and is not easy to fall off.

[0122] In one embodiment, the plug-in slot 2221 is vertically arranged, and a blocking block 214 is arranged at the bottom to prevent the plug-in block 1112 from falling.

[0123] In one embodiment, a clamping assembly 23 is further provided on the base support. For example, one side of the base support 20 is slidably connected to the rail profile measuring instrument 1, and the clamping assembly 23 is rotatably provided on the other side. By clamping the rail, especially the turnout frog, the stability of the sliding base 2 placed on the turnout frog is improved, thereby improving the sliding stability of the rail profile measuring instrument 1 on the sliding base 2, further improving the reliability of the obtained image, and improving the measurement accuracy.

[0124] In one embodiment, the clamping assembly 23 includes a guiding mechanism, two clamping blocks 234 slidably arranged on the guiding mechanism, and two first elastic members 235 respectively arranged on the opposite sides of the clamping blocks 234. The two clamping blocks 234 tend to slide towards each other under the action of the corresponding first elastic members 235 and are used to clamp the switch rail.

[0125] In one embodiment, the end of the guiding mechanism is rotatably connected to the base support 20, so that the clamping assembly 23 can be flipped to be flush with the bottom end of the base support, facilitating the carrying and transportation of the sliding base 10 and avoiding damage to the clamping assembly 23.

[0126] Please refer to again Figure 3 , in one embodiment, the guiding mechanism includes a mounting frame 231, a guiding rail 232 and a guiding rod 233 arranged on the mounting frame 231, and both the guiding rail 232 and the guiding rod 233 extend along the transverse direction of the turnout frog.

[0127] The end of the mounting frame 231 is rotatably connected to the base support 20.

[0128] The clamping block 234 is sleeved on the guiding rod 233 and is slidably connected to the guiding rail 232.

[0129] The first elastic member 235 is a spring, and the first elastic member 235 is sleeved on the guiding rod 233.

[0130] In one embodiment, the clamping block 234 has a clamping surface 2341, the clamping surface 2341 is an inclined surface adapted to the side surface of the corresponding switch rail, and / or a plurality of racks are arranged on the clamping surface 2341. That is, through the inclined surface and / or the racks, the clamping stability of the clamping assembly 23 to the switch rail is improved, further improving the stability of the sliding base 2 placed on the turnout frog, improving the sliding stability of the rail profile measuring instrument 1 on the sliding base 2, thereby improving the reliability of the obtained image and improving the measurement accuracy.

[0131] Please refer to Figure 7 , Figure 7 is a schematic structural diagram of the positioning rod 3 in the embodiment of the present application.

[0132] In one embodiment, the positioning rod 3 has a connecting end and a positioning end that are oppositely arranged. The connecting end is used to connect with the sliding base 2 or the rail profile measuring instrument 1. The positioning end is provided with a second positioning surface 311, that is, the end of the positioning rod 3 far from the sliding base 2 is provided with the second positioning surface 311. The second positioning surface 311 is used to contact the top surface of the stock rail and support the positioning rod 3.

[0133] In a specific embodiment, the end of the positioning rod 3 far from the sliding base 2 is provided with a second positioning block 31, and the second positioning block 31 has a second positioning surface 311.

[0134] In one embodiment, the second positioning block 31 is made of an insulating material, that is, the second positioning surface 311 is an insulating surface, which ensures the overall insulation of the rail profile measuring instrument 1, the sliding base 2 and the positioning rod 3, prevents conduction between the left and right rails, and improves the measurement safety. The second positioning block 31 can be a nylon block, which not only ensures the light weight of the overall weight and the convenience of carrying, but also has a certain strength, and supports the sliding base 2 to lap on the double-sided rails through the support connecting block.

[0135] In one embodiment, the positioning rod 3 is telescopic, which adapts to different widths in the longitudinal direction of the turnout frog, and improves the measurement convenience.

[0136] In one embodiment, a first connecting portion 111 is provided on the back surface of the rail profile measuring instrument 1, and a second connecting portion 112 is provided on the side surface. The sliding base 2 is provided with a third connecting portion and a fourth connecting portion 24.

[0137] The sliding base 2 is used to be detachably connected with the first connecting portion 111 (such as the plug-in block 1112) of the rail profile measuring instrument 1 through the third connecting portion (such as the slider 222), and is detachably connected with the connecting end of the positioning rod 3 through the fourth connecting portion 24. Alternatively, the positioning rod 3 is used to be detachably connected with the second connecting portion 112 of the rail profile measuring instrument 1 through the connecting end.

[0138] Please refer to Figure 8 , Figure 8 which is a schematic cross-sectional structure diagram of the separable connection assembly 4 in the embodiment of the present application.

[0139] In a specific embodiment, the base bracket 20 and the positioning rod 3 are detachably connected, and / or the rail profile measuring instrument 1 and the positioning rod 3 are detachably connected. The detachable connection between the two is realized through the separable connection assembly 4. That is, the second connecting portion 112, the fourth connecting portion 24 and the connecting end of the positioning rod 3 include the separable connection assembly 4.

[0140] In one embodiment, the separable connection component 4 includes a connection shaft 41 and a connection cylinder 42 adapted to the connection shaft 41, and one of the two is disposed on the base bracket 20 (or on the rail profile measuring instrument 1), and the other is disposed on the positioning rod 3. Preferably, both the second connection portion 112 and the fourth connection portion 24 include the connection shaft 41.

[0141] The connection shaft 41 includes a shaft main body 411 and a pin shaft 412 vertically disposed at one end of the shaft main body 411.

[0142] The connection cylinder 42 includes a cylinder main body 421 and a limiting plate 422 disposed at one end of the cylinder main body 421. The limiting plate 422 is provided with a through hole adapted to the pin shaft 412 for the pin shaft 412 to pass through the limiting plate 422 from the cylinder main body 421, so as to cooperate with the connection shaft 41 or the connection cylinder 42 to rotate, and the pin shaft 412 is snap-connected with the limiting plate 422, thereby realizing the connection between the connection shaft 41 and the connection cylinder 42. The separable connection component 4 is not only convenient for disassembly and assembly, but also can ensure the repeatable installation accuracy, as well as the overall linearity and rigidity, thereby ensuring the measurement reference.

[0143] In one embodiment, a limiting component 4221 is disposed on the side of the limiting plate 422 located outside the cylinder main body 421, and the limiting component 4221 is away from the through hole to limit the continuous rotation of the pin shaft 412 passing through the limiting plate 422, thereby improving the operation convenience and the connection reliability between the connection shaft 41 and the connection cylinder 42.

[0144] The limiting component 4221 may include, but is not limited to, a limiting groove 1331, a limiting abutting block, etc.

[0145] In one embodiment, the connection shaft 41 further includes a shaft cylinder 43 sleeved outside the shaft main body 411. The pin shaft 412 extends outside the shaft cylinder 43. A second elastic member 44 is disposed between the shaft cylinder 43 and the end of the shaft main body 411 facing away from the pin shaft 412. The second elastic member 44 applies a driving force to the shaft main body 411, so that the shaft main body 411 has a moving tendency to drive the pin shaft 412 towards the shaft cylinder 43, thereby further improving the connection reliability between the connection shaft 41 and the connection cylinder 42. The second elastic member 44 may be a spring, a spring piece, etc.

[0146] In one embodiment, the side surface of the limiting plate 422 located outside the cylinder main body 421 has a guiding surface, and the guiding surface is used to guide the pin shaft 412 from the through hole to the limiting component 4221, further improving the operation convenience.

[0147] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A rail profile measuring device, characterized in that: It comprises a rail profile measuring instrument and an auxiliary tooling detachably connected to the rail profile measuring instrument; The rail profile measuring instrument is provided with a first connection portion on the back, a second connection portion on the side, and a positioning panel for contacting the top surface of the rail and supporting the rail profile measuring instrument on the bottom; The auxiliary tooling comprises a sliding base and a positioning rod, the sliding base is provided with a third connecting portion and a fourth connecting portion, and both ends of the positioning rod are respectively provided with a connecting end and a positioning end; The sliding base is used to be detachably connected to the first connection part of the rail profile measuring instrument through the third connection part, and is detachably connected to the connection end of the positioning rod through the fourth connection part; or, the positioning rod is used to be detachably connected to the second connection part of the rail profile measuring instrument through the connection end; and, The sliding base is used to be placed on the turnout frog, and the third connecting portion is slidably connected to the sliding base and can slide laterally along the sliding base, so that the rail profile measuring instrument can move laterally along the turnout frog; The positioning end of the positioning rod is used to be placed on a base rail opposite to the rail on which the rail profile measuring instrument is placed, so as to support the positioning rod.

2. The rail profile measuring device according to claim 1, characterized in that: The rail profile measuring instrument is provided with a measuring instrument positioning assembly, and the measuring instrument positioning assembly includes two positioning members, and the two positioning members are used to synchronously abut against the same side of the rail so that the rail profile measuring instrument is parallel to the rail; The positioning member is rotatably connected to the rail profile measuring instrument so that the positioning member can be flipped over to its lowest point to be flush with the bottom surface of the rail profile measuring instrument.

3. The rail profile measuring device according to claim 2, characterized in that: The positioning member includes a mounting seat, a first abutment portion and a second abutment portion. The mounting seat is fixedly connected to the rail profile measuring instrument. The first abutment portion is rotatably connected to the mounting seat via a rotating shaft and can be flipped and embedded in the mounting seat. The second abutment portion is rotatably connected to the end of the first abutment portion and can be flipped and embedded in the first abutment portion.

4. The rail profile measuring device according to claim 3, characterized in that: The end of the second abutment portion is provided with a groove and an extension portion in sequence along a direction away from the rotational connection with the first abutment portion, the groove is adapted to the rotating shaft, and the extension portion extends along the width direction of the second abutment portion, so that when the second abutment portion is embedded in the first abutment portion, the groove is engaged with the rotating shaft, and the extension portion abuts against the inner wall of the mounting seat.

5. The rail profile measuring device according to claim 1, characterized in that: The second connecting part and the fourth connecting part both include a connecting shaft, and the connecting shaft includes a shaft body and a pin shaft vertically arranged at one end of the shaft body; The connecting end of the positioning rod includes a connecting tube, and the connecting tube includes a tube body and a limit plate arranged at one end of the tube body, and the limit plate is provided with a through hole adapted to the pin shaft so that the pin shaft can pass through the limit plate from the tube body; a limit assembly is arranged on the side of the limit plate located outside the tube body, and the limit assembly is away from the through hole so as to limit the pin shaft passing through the limit plate from continuing to rotate.

6. The rail profile measuring device according to claim 5, characterized in that: The connecting shaft further comprises a shaft cylinder sleeved on the outside of the shaft body, the pin extending out of the shaft cylinder, a second elastic member is arranged between the shaft cylinder and the end of the shaft body away from the pin, the second elastic member applies a driving force to the shaft body, so that the shaft body has a tendency to drive the pin to move toward the shaft cylinder; The side surface of the limiting plate located outside the barrel body has a guide surface, and the guide surface is used to guide the pin shaft from the through hole to the limiting assembly.

7. The rail profile measuring device according to claim 1, characterized in that: The sliding base comprises a base bracket, and a base positioning assembly is arranged on the base bracket; The base positioning assembly includes a plurality of dovetail grooves arranged at the bottom of the base bracket and at least one first positioning block adapted to the dovetail grooves, the plurality of dovetail grooves are arranged in sequence and spaced apart along the lateral direction of the turnout frog, and the first positioning block is used to be plugged into the dovetail grooves and contact the top surface of the turnout frog to support the rail profile measuring instrument.

8. The rail profile measuring device according to claim 1, characterized in that: The sliding base comprises a base bracket, one side of the base bracket is slidably provided with the third connecting portion, and the other side of the base bracket is rotatably provided with a clamping assembly; The clamping assembly includes a guide mechanism whose end is rotatably connected to the base bracket, two clamping blocks slidably arranged on the guide mechanism, and two first elastic members arranged on opposite sides of the clamping blocks. The two clamping blocks have a tendency to slide toward each other under the action of the corresponding first elastic members and are used to clamp the heart rail of the turnout frog.

9. The rail profile measuring device according to claim 8, characterized in that: The guide mechanism comprises a mounting frame, a guide rail and a guide rod arranged on the mounting frame, and the guide rail and the guide rod both extend in the transverse direction of the turnout frog; The end of the mounting frame is rotatably connected to the base bracket; The clamping block is sleeved on the guide rod and is slidably connected to the guide rail; The first elastic member is a spring, and the first elastic member is sleeved on the guide rod.

10. The rail profile measuring device according to claim 1, characterized in that: The rail profile measuring instrument includes a base, a shell covering the base, and a handle arranged on the top of the shell. The base is made of aluminum alloy, the shell is made of carbon fiber, and the positioning panel is made of alloy steel with a hardness greater than 55HRC.

Images